annotate src/g23m-gsm/dl/dl_state.c @ 51:04aaa5622fa7

disable deep sleep when Iota LEDB is on TI's Iota chip docs say that CLK13M must be running in order for LEDB to work, and practical experience on Mot C139 which uses Iota LEDB for its keypad backlight concurs: if Calypso enters deep sleep while the keypad backlight is turned on, the light flickers visibly as the chipset goes into and out of deep sleep. TI's original L1 sleep manager code had logic to disable deep sleep when LT_Status() returns nonzero, but that function only works for B-Sample and C-Sample LT, always returns 0 on BOARD 41 - no check of Iota LEDB status anywhere. Change this code for our current hardware: disable deep sleep when Iota LEDB has been turned on through LLS.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 19 Oct 2020 05:11:29 +0000
parents fa8dc04885d8
children
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1
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project : GSM-PS
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4 | Modul : DL_STATE
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5 +-----------------------------------------------------------------------------
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6 | Copyright 2002 Texas Instruments Berlin, AG
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7 | All rights reserved.
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8 |
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9 | This file is confidential and a trade secret of Texas
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10 | Instruments Berlin, AG
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11 | The receipt of or possession of this file does not convey
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12 | any rights to reproduce or disclose its contents or to
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13 | manufacture, use, or sell anything it may describe, in
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14 | whole, or in part, without the specific written consent of
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15 | Texas Instruments Berlin, AG.
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16 +-----------------------------------------------------------------------------
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17 | Purpose : This Modul defines the state machine of the component DL
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18 | (replaces the old channel dependent implementation)
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19 +-----------------------------------------------------------------------------
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20 */
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21
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22 #ifndef DL_STATE_C
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23 #define DL_STATE_C
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24
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25 #define ENTITY_DL
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26 #define NEW_REJ_ACK /* Acknowledgement by valid reject frame
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27 * in accordance with 3GPP 04.06, 5.5.3.1
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28 * "On receipt of a valid I frame or supervisory frame"
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29 */
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30
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31 /*==== INCLUDES ===================================================*/
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32
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33 #include "typedefs.h"
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34 #include <string.h>
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35 #include "vsi.h"
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36 #include "pconst.cdg"
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37 #include "custom.h"
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38 #include "gsm.h"
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39 #include "mon_dl.h"
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40 #include "prim.h"
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41 #include "pei.h"
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42 #include "tok.h"
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43 #include "ccdapi.h"
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44 #include "dl.h"
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45 #include "dl_em.h"
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46 #include "dl_trc.h"
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47
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48 /*==== TYPEDEFS ===================================================*/
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49 typedef struct
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50 {
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51 UBYTE channel;
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52 UBYTE sapi;
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53 UBYTE state;
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54 UBYTE T200_Stop;
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55 UBYTE T200_Start;
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56 UBYTE pf_bit_flag;
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57 UBYTE dl_data_ind;
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58 UBYTE mdl_error_ind;
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59 T_CCH* pcch;
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60 } T_CCH_INTERN;
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61 #define T_CCH_INTERN_INIT {0,0,0,0,0,0,0}
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62
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63 /*==== EXPORT =====================================================*/
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64 /*==== PRIVAT =====================================================*/
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65 static int frame_validation (UBYTE channel_type, UBYTE* frame);
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66
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67 static int downlink_idle (T_CCH_INTERN* pcch_i, UBYTE *frame);
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68 static int downlink_contention_resolution (T_CCH_INTERN* pcch_i, UBYTE *frame);
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69 static int downlink_mfe (T_CCH_INTERN* pcch_i, UBYTE *frame);
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70 static int downlink_timer_recovery (T_CCH_INTERN* pcch_i, UBYTE *frame);
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71 static int downlink_awaiting_release (T_CCH_INTERN* pcch_i, UBYTE *frame);
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72
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73 static void downlink_mfe_information (T_CCH_INTERN* pcch_i, UBYTE *frame);
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74 static void downlink_mfe_supervisory (T_CCH_INTERN* pcch_i, UBYTE *frame);
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75 static void downlink_mfe_sabm (T_CCH_INTERN* pcch_i, UBYTE *frame);
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76 static void downlink_mfe_dm (T_CCH_INTERN* pcch_i, UBYTE *frame);
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77 static void downlink_mfe_tr_unnumbered (T_CCH_INTERN* pcch_i, UBYTE *frame, UBYTE state);
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78 static void downlink_i_frame (T_CCH_INTERN* pcch_i, UBYTE *frame);
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79 static void downlink_tr_supervisory (T_CCH_INTERN* pcch_i, UBYTE *frame);
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80 static void downlink_tr_information (T_CCH_INTERN* pcch_i, UBYTE *frame);
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81
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82 static void invoke_retransmission (T_CCH_INTERN* pcch_i, UBYTE frame_nr);
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83 static void enquiry_response (T_CCH_INTERN* pcch_i, UBYTE *frame);
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84 static void mdl_error_ind (UBYTE cause, UBYTE channel_type, UBYTE sapi);
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85 static void nr_error_recovery (T_CCH_INTERN* pcch_i, UBYTE *frame);
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86 static void concatenate (UBYTE ch_type, UBYTE sapi, UBYTE *frame);
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87 static void free_sending_buffer (UBYTE ch_type, UBYTE sapi);
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88
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89 static void repeat_sabm (UBYTE channel, UBYTE sapi);
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90 static void delayed_release_ind(UBYTE channel);
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91
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92 static int uplink_idle (UBYTE channel, UBYTE sapi);
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93 static int uplink_awaiting_establishment (UBYTE channel, UBYTE sapi, UBYTE no_signalling_mode);
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94 static int uplink_mfe (UBYTE channel, UBYTE sapi, UBYTE no_signalling_mode);
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95 static int uplink_timer_recovery (UBYTE channel, UBYTE sapi, UBYTE no_signalling_mode);
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96
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97 static void T200_expiry (UBYTE channel, UBYTE sapi);
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98
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99 /*==== VARIABLES ==================================================*/
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100
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101 /*Removed the const from the definition,rework for issue 25370*/
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102 static UBYTE l2_empty_frame [25] = {
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103 0x00, 0x00, /* the first two dummy bytes only for SACCH L1 header! */
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104 /* here begins the normal empty frame (SDCCH, FACCH) */
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105 0x01, /* address field: SAPI 0 */
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106 0x03, /* control field: UI frame */
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107 0x01, /* length field: length = 0 */
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108 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
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109 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
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110 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
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111 0x2b, 0x2b, 0x2b, 0x2b, 0x2b };
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112 #if 0
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113 static UBYTE l2_invalid_frame [25] = {
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114 0x00, 0x00, /* the first two dummy bytes only for SACCH L1 header! */
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115 /* here begins the normal empty frame (SDCCH, FACCH) */
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116 0x1D, /* address field: SAPI 7 (unallocated SAPI; no action shall be taken on such frames) */
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117 0x03, /* control field: UI frame */
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118 0x01, /* length field: length = 0 */
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119 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
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120 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
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121 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
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diff changeset
122 0x2b, 0x2b, 0x2b, 0x2b, 0x2b };
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 static UBYTE l2_invalid_frame_0 [25] = {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 0x00, 0x00, /* the first two dummy bytes only for SACCH L1 header! */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 /* here begins the normal empty frame (SDCCH, FACCH) */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 0x00, /* address field: SAPI 0 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 0x00, /* control field: UI frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 0x00, /* length field: length = 0 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 0x00, 0x00, 0x00, 0x00, 0x00,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 0x00, 0x00, 0x00, 0x00, 0x00,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 0x00, 0x00, 0x00, 0x00, 0x00,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 0x00, 0x00, 0x00, 0x00, 0x00 };
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 #endif /* 0|1 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 static T_CCH_INTERN cch_i;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 #if defined(CHECK_PCCHI)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 #define CHECK_PCCH_I() if (check_pcch_i(pcch_i, __LINE__)()return;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 #define CHECK_PCCH_Ir() if (check_pcch_i(pcch_i, __LINE__)()return -1;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 #else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 #define CHECK_PCCH_I()
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 #define CHECK_PCCH_Ir()
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 #endif /* CHECK_PCCHI */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 /*==== FUNCTIONS ==================================================*/
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 int dl_downlink (UBYTE error_flag, UBYTE channel_type, UBYTE* frame, ULONG fn)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 UBYTE channel_state = STATE_INVALID;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 UBYTE channel = NOT_PRESENT_8BIT;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 UBYTE frame_sapi = PS_SAPI_0; /* to calm lint, will be new set for valid frames */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 static UBYTE invalid = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 int ret = -2;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 int cause;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 int l2_offset;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 TRACE_EVENT_WIN_P1 ("downlink(): dcch0_ch_type:%s",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 CH_TYPE_NAME[dl_data->dcch0_ch_type]);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 TRACE_EVENT_WIN_P6 ("DL: DCCH0=%s,%s vr=%u vs=%u va=%u T200=%u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 CH_TYPE_NAME[dl_data->cch[C_DCCH0].ch_type],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 STATE_DCCH0_NAME[dl_data->state[C_DCCH0]],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 dl_data->cch[C_DCCH0].vr, dl_data->cch[C_DCCH0].vs, dl_data->cch[C_DCCH0].va,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 dl_data->cch[C_DCCH0].T200_counter);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 TRACE_EVENT_WIN_P6 ("DL: DCCH3=%s,%s vr=%u vs=%u va=%u T200=%u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 CH_TYPE_NAME[dl_data->cch[C_DCCH3].ch_type],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 STATE_DCCH3_NAME[dl_data->state[C_DCCH3]],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 dl_data->cch[C_DCCH3].vr, dl_data->cch[C_DCCH3].vs, dl_data->cch[C_DCCH3].va,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 dl_data->cch[C_DCCH3].T200_counter);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 if (channel_type EQ L2_CHANNEL_SACCH)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 l2_offset = 2; /* with layer 1 header */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 l2_offset = 0; /* without layer 1 header */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 #define RR_SHORT_PD_HANDLING
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 #if defined(RR_SHORT_PD_HANDLING)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 /* Handling of unacknowledged UI frames with format type Bter */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 #if defined(RR_SHORT_PD_DETECT_KNOWN_MSG_ONLY) /* detection of known messages only */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 cause = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 switch (frame[l2_offset])
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 case RR_SHORT_PD_SI10:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 case RR_SHORT_PD_MEAS_INFO:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 if (channel_type EQ L2_CHANNEL_SACCH)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 cause = 1;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 case RR_SHORT_PD_NOTI_FACCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 if ((channel_type EQ L2_CHANNEL_FACCH_F) OR
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 (channel_type EQ L2_CHANNEL_FACCH_H))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 cause = 1;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 case RR_SHORT_PD_UPLINK_FREE:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 cause = 1;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 if (cause)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 drr_dl_short_unitdata_ind (channel_type, error_flag, frame,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 &frame[l2_offset],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 (channel_type EQ L2_CHANNEL_SACCH) ? DL_N201_SACCH_Bter : DL_N201_DCCH_Bter, fn);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 return 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 #else /* detection of all possible messages with short L2 header and format Bter */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 TRACE_EVENT_WIN_P4 ("detection of format Bter: %02x&%02x=%02x ?= %02x",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 frame[l2_offset], BTER_FORMAT_MASK, GET_BTER_FORMAT (&frame[l2_offset]), SHORT_L2_HEADER_TYPE_1);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 if ((GET_BTER_FORMAT (&frame[l2_offset]) EQ SHORT_L2_HEADER_TYPE_1))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 drr_dl_short_unitdata_ind (channel_type, error_flag, frame,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 &frame[l2_offset],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 (UBYTE)((channel_type EQ L2_CHANNEL_SACCH) ? DL_N201_SACCH_Bter : DL_N201_DCCH_Bter), fn);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 return 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 #endif /* kind of Bter detection */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 #endif /* RR_SHORT_PD_HANDLING */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 /* check frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 if (error_flag EQ VALID_BLOCK)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 frame_sapi = GET_SAPI (frame+l2_offset);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 if ((frame_sapi NEQ PS_SAPI_0) AND (frame_sapi NEQ PS_SAPI_3))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 TRACE_EVENT_WIN_P1 ("downlink() returns -1 (wrong SAPI=%u)", frame_sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 return -1;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 cause = frame_validation (channel_type, frame+l2_offset);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 if (cause >= 0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 TRACE_FUNCTION ("frame validation failed!");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 if (invalid EQ 0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 TRACE_ERROR ("invalid frame");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 invalid = 1; /* only one message per succession */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 mdl_error_ind ((UBYTE)cause, channel_type, frame_sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 return 0;/* ETSI GSM 04.06 Annex G.2 - G.4 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 invalid = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 #if defined(DL_2TO1) || defined(_SIMULATION_)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 /* Handling of unacknowledged UI frames on SACCH with SAPI=0 (not format type Bter) */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 if ((channel_type EQ L2_CHANNEL_SACCH) AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 (frame_sapi EQ PS_SAPI_0) AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252 (GET_FORMAT_TYPE(frame+l2_offset) EQ U_FORMAT) AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
253 (GET_U_TYPE(frame+l2_offset) EQ UI_FRAME) )
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255 drr_dl_unitdata_ind (error_flag, frame, frame+l2_offset+3,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 (UBYTE)(GET_LENGTH_INDICATOR (frame+l2_offset)), fn);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 return 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
258 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
259 #endif /* DL_2TO1 || _SIMULATION_ */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
260 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 #if defined(DL_2TO1)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
262 else if (channel_type EQ L2_CHANNEL_SACCH)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
263 { /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
264 * Indicate invalid SACCH frame for decrement of radio link timeout counter.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
265 * The invalid frame possible contains invalid headers, use length 0.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
266 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
267 drr_dl_unitdata_ind (error_flag, frame, frame+l2_offset+3, 0, fn);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
268 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
269 #endif /* DL_2TO1 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
270
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
271 if (error_flag NEQ VALID_BLOCK)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
272 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
273 TRACE_EVENT_WIN ("invalid frame->stop download handling");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
274 return 0; /* no further handling */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
275 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
276
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
277 memset (&cch_i, 0, sizeof (T_CCH_INTERN));
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
278 switch (channel_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
279 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
280 case L2_CHANNEL_SDCCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
281 if (frame_sapi EQ PS_SAPI_3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
282 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
283 channel = C_DCCH3;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
284 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
285 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
286 /*lint -fallthrough*/
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
287 case L2_CHANNEL_FACCH_F:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
288 case L2_CHANNEL_FACCH_H:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
289 if (frame_sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
290 channel = C_DCCH0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
291 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
292 case L2_CHANNEL_SACCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
293 if (frame_sapi EQ PS_SAPI_3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
294 { /* SACCH with SAPI=3 only supported with associated TCH (FACCH) */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
295 if ((dl_data->cch[C_DCCH0].ch_type EQ L2_CHANNEL_FACCH_H) OR
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
296 (dl_data->cch[C_DCCH0].ch_type EQ L2_CHANNEL_FACCH_F))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
297 channel = C_DCCH3;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
298 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
299 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
300 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
301 TRACE_EVENT_WIN ("No handling of SACCH with SAPI=0 here!");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
302 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
303 * The SACCH with SAPI=0 is handled some lines before for DL_2TO1 and
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
304 * simulation. Handling of frames other than UI frames is not supported.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
305 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
306 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
307 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
308 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
309 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
310 }/* endswitch channel_type */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
311
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
312 if (channel EQ NOT_PRESENT_8BIT)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
313 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
314 TRACE_EVENT_WIN ("downlink() returns -3");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
315 return -3;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
316 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
317 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
318 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
319
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
320 #if defined(DELAYED_SABM)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
321 /* ignore downlinked frames before delayed SABM was sent */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
322 if ((channel EQ C_DCCH0) AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
323 (dl_data->dcch0_sabm_flag NEQ NOT_PRESENT_8BIT))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
324 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
325 DL_OFFLINE_TRACE (TRACE_DL_EVENT, channel, channel_type, "DL:pend.SABM->ignore");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
326 return 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
327 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
328 #endif /* DELAYED_SABM */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
329
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
330 cch_i.channel = channel;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
331 cch_i.sapi = frame_sapi;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
332 #if defined(_SIMULATION_)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
333 if (channel_type EQ L2_CHANNEL_SACCH)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
334 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
335 TRACE_EVENT_WIN_P1 ("SACCH: set SAPI=%u set during downlink", frame_sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
336 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
337 #endif /* _SIMULATION_ */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
338
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
339 cch_i.state = channel_state = dl_data->state[channel];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
340 cch_i.pcch = &dl_data->cch[channel];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
341 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
342 * The channel type pcch->ch_type is overwritten as input to the downlink
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
343 * sub functions. In case of DCCH0 this is temporary only and the channel
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
344 * type have to be re-assigned with the value of dl_data->dcch0_ch_type.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
345 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
346 cch_i.pcch->ch_type = channel_type;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
347 if (cch_i.pcch->vtx NEQ EMPTY_CMD)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
348 { /* save bit for the case of unsolicited frames */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
349 cch_i.pf_bit_flag = cch_i.pcch->f_bit;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
350 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
351 TRACE_EVENT_WIN_P4 ("downlink() in:%s SAPI=%u st=%u vtx=%s",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
352 CH_TYPE_NAME[channel_type], frame_sapi, channel_state,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
353 VTX_NAME[cch_i.pcch->vtx]);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
354 TRACE_EVENT_WIN_P9 ("vr=%u vs=%u va=%u rc=%u contres=%u reje=%u ackp=%u %c=%u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
355 cch_i.pcch->vr, cch_i.pcch->vs, cch_i.pcch->va, cch_i.pcch->rc,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
356 cch_i.pcch->contention_resolution, cch_i.pcch->reject_exception,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
357 cch_i.pcch->acknowledge_pending,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
358 cch_i.pcch->time_flag ? 'T' : 't', cch_i.pcch->T200_counter);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
359 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
360
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
361 switch (channel_state)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
362 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
363 case STATE_DISABLED:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
364 case STATE_IDLE_DL:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
365 ret = downlink_idle (&cch_i, frame+l2_offset);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
366 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
367 case STATE_CONTENTION_RESOLUTION:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
368 ret = downlink_contention_resolution (&cch_i, frame+l2_offset);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
369 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
370 case STATE_MULTIPLE_FRAME_ESTABLISHED:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
371 ret = downlink_mfe (&cch_i, frame+l2_offset);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
372 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
373 case STATE_TIMER_RECOVERY:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
374 ret = downlink_timer_recovery (&cch_i, frame+l2_offset);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
375 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
376 case STATE_AWAITING_RELEASE:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
377 ret = downlink_awaiting_release (&cch_i, frame+l2_offset);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
378 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
379 }/* endswitch channel_state */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
380 if (channel EQ C_DCCH0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
381 { /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
382 * Reconstruct the temporary overwritten pcch->ch_type with the value
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
383 * of dl_data->dcch0_ch_type.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
384 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
385 cch_i.pcch->ch_type = dl_data->dcch0_ch_type;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
386 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
387
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
388
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
389 TRACE_EVENT_WIN_P5 ("%s SAPI=%u vtx=%s (%s#%u)", CH_TYPE_NAME[cch_i.pcch->ch_type], cch_i.sapi,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
390 VTX_NAME[cch_i.pcch->vtx],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
391 __FILE10__, __LINE__);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
392 if (ret NEQ 0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
393 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
394 TRACE_EVENT_WIN_P1 ("downlink() returns %d", ret);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
395 return ret;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
396 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
397
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
398 /* transfer states and flags to dl_data */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
399 dl_data->cch[channel].f_bit_flag = dl_data->cch[channel].f_bit = cch_i.pf_bit_flag;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
400 if (cch_i.T200_Start)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
401 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
402 dl_data->cch[channel].T200_counter = T200_STOPPED;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
403 dl_data->cch[channel].time_flag = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
404 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
405 else if (cch_i.T200_Stop)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
406 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
407 dl_data->cch[channel].T200_counter = T200_STOPPED;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
408 dl_data->cch[channel].time_flag = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
409 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
410
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
411 if (cch_i.dl_data_ind)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
412 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
413 com_data_ind(channel_type, frame_sapi, fn);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
414 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
415
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
416 if (channel_state NEQ cch_i.state)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
417 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
418 set_channel_state (
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
419 (UBYTE)((frame_sapi EQ PS_SAPI_0) ? C_DCCH0 : C_DCCH3), cch_i.state);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
420 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
421
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
422 if (cch_i.mdl_error_ind)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
423 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
424 mdl_error_ind ( cch_i.mdl_error_ind, channel_type, frame_sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
425 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
426
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
427
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
428
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
429 TRACE_EVENT_WIN_P4 ("downlink() out:%s SAPI=%u st=%u vtx=%s",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
430 CH_TYPE_NAME[channel_type], cch_i.sapi, cch_i.state,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
431 VTX_NAME[cch_i.pcch->vtx]);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
432 TRACE_EVENT_WIN_P9 ("vr=%u vs=%u va=%u rc=%u contres=%u reje=%u ackp=%u %c=%u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
433 cch_i.pcch->vr, cch_i.pcch->vs, cch_i.pcch->va, cch_i.pcch->rc,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
434 cch_i.pcch->contention_resolution, cch_i.pcch->reject_exception,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
435 cch_i.pcch->acknowledge_pending,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
436 cch_i.pcch->time_flag ? 'T' : 't', cch_i.pcch->T200_counter);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
437 TRACE_EVENT_WIN_P4 ("T200=%s %s %s %s",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
438 cch_i.T200_Start ? "Start" : cch_i.T200_Stop ? "Stop" : "...",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
439 cch_i.pf_bit_flag ? "P/F" : "",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
440 cch_i.dl_data_ind ? "DATA_IND" : "", cch_i.mdl_error_ind ? "ERROR_IND" : "");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
441 TRACE_EVENT_WIN_P1 ("downlink() returns %d", ret);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
442
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
443 return ret;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
444 }/* endfunc downlink */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
445
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
446 LOCAL int frame_validation (UBYTE channel_type, UBYTE* frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
447 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
448 UBYTE frame_length;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
449 BOOL frame_m_bit;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
450 UBYTE N201;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
451
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
452 if (!GET_EA (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
453 return FRAME_NOT_IMPLEMENTED; /* ETSI GSM 04.06 Annex G.2.3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
454
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
455 if (!GET_EL (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
456 return FRAME_NOT_IMPLEMENTED; /* ETSI GSM 04.06 Annex G.4.1 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
457
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
458 frame_length = GET_LENGTH_INDICATOR (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
459 frame_m_bit = GET_M_BIT (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
460
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
461 /* get the maximal number of octets */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
462 switch (channel_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
463 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
464 case L2_CHANNEL_SDCCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
465 N201 = N201_SDCCH;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
466 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
467 case L2_CHANNEL_SACCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
468 N201 = N201_SACCH;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
469 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
470 default:/* CH_TYPE_FACCH_FR, L2_CHANNEL_FACCH_H */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
471 N201 = N201_FACCH;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
472 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
473 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
474
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
475 switch (GET_FORMAT_TYPE (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
476 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
477 case I_FORMAT: /* I format */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
478 case I1_FORMAT:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
479 if ((frame_length > N201) OR (frame_length EQ 0))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
480 return I_FRAME_WITH_INCORRECT_LENGTH; /* ETSI GSM 04.06 Annex G.4.2 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
481 if ((frame_length < N201) AND (frame_m_bit EQ 1))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
482 return I_FRAME_WITH_INCORRECT_USE_OF_M_BIT; /* ETSI GSM 04.06 Annex G.4.2 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
483 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
484 case S_FORMAT: /* S format */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
485 if (frame_length OR frame_m_bit)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
486 return S_FRAME_WITH_INCORRECT_PARAMETERS; /* ETSI GSM 04.06 Annex G.4.3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
487 if ((frame[1] & 0x0f) EQ 0x0d)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
488 return FRAME_NOT_IMPLEMENTED; /* ETSI GSM 04.06 Annex G.3.1 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
489 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
490 case U_FORMAT: /* U format */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
491 switch (GET_U_TYPE (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
492 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
493 case DM_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
494 case DISC_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
495 if (frame_length OR frame_m_bit)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
496 return U_FRAME_WITH_INCORRECT_PARAMETERS; /* ETSI GSM 04.06 Annex G.4.4 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
497 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
498 case UA_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
499 case SABM_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
500 case UI_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
501 if ((frame_length > N201) OR (frame_m_bit))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
502 return U_FRAME_WITH_INCORRECT_PARAMETERS; /* ETSI GSM 04.06 Annex G.4.5 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
503 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
504 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
505 return FRAME_NOT_IMPLEMENTED; /* ETSI GSM 04.06 Annex G.3.2 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
506 /*break;*/
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
507 }/* endswitch U frame_type */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
508 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
509 }/* endswitch frame_format */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
510
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
511 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
512 * ETSI GSM 04.06 Annex G.2.1, G.2.2 will be check in the following functions
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
513 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
514
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
515 return -1; /* frame is valid */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
516 }/* endfunc frame_validation */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
517
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
518 static int downlink_idle( T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
519 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
520 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
521 * According to 3GPP TS 04.05, 5.4.5 Idle state:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
522 * While in the idle state:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
523 * - the receipt of a DISC command shall result in the transmission of a
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
524 * DM response with the F bit set to the value of the received P bit;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
525 * - the receipt of an I frame or supervisory frame with the P bit set to "1"
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
526 * shall result in the transmission of a DM response with the F bit set to
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
527 * "1" (as defined in subclause 5.2.2);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
528 * - the content of any received I frame shall be discarded;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
529 * - on receipt of an SABM command, the procedures defined in subclause 5.4.1
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
530 * shall be followed;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
531 * - on receipt of UI commands, the procedures defined in subclause 5.3 shall
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
532 * be followed;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
533 * - all other frame types shall be discarded.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
534 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
535 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
536
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
537 CHECK_PCCH_Ir();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
538 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
539
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
540 TRACE_FUNCTION ("downlink_idle()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
541
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
542 switch (GET_FORMAT_TYPE (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
543 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
544 case S_FORMAT: /* S frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
545 if (GET_S_TYPE (frame) NEQ RR_CMD)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
546 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
547 /*lint -fallthrough*/
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
548 case I_FORMAT: /* I frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
549 case I1_FORMAT:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
550 if (GET_P_BIT (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
551 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
552 pcch->vtx = DM_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
553 pcch_i->pf_bit_flag = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
554 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
555 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
556 case U_FORMAT: /* U frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
557 if (GET_CR (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
558 { /* command */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
559 switch (GET_U_TYPE (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
560 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
561 case SABM_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
562 if (!GET_LENGTH_INDICATOR (frame) AND pcch_i->sapi EQ PS_SAPI_3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
563 { /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
564 * Mobile Terminated Establishment, but only for SAPI=3!
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
565 *
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
566 * According to 3GPP TS 04.06, 5.4.1 Establishment of multiple frame
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
567 * operation, 5.4.1.1 General, Note:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
568 * For SAPI 0 the data link is always established by the MS.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
569 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
570 com_restore_queue ( pcch_i->sapi, NULL);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
571 pcch->vtx = UA_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
572 pcch_i->pf_bit_flag = GET_P_BIT (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
573 pcch->va = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
574 pcch->vr = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
575 pcch->vs = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
576 pcch->rc = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
577 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
578 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
579 case DISC_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
580 pcch->vtx = DM_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
581 pcch_i->pf_bit_flag = GET_P_BIT (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
582 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
583 case UI_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
584 /* drr_dl_unitdata_ind() was called in the main downlink function */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
585 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
586 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
587 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
588 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
589 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
590 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
591 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
592 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
593 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
594
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
595 return 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
596 }/* endfunc downlink_idle */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
597
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
598 static int downlink_contention_resolution(T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
599 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
600 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
601 UBYTE frame_type;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
602 UBYTE frame_format;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
603 UBYTE frame_cr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
604
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
605 UBYTE establish_cnf = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
606 UBYTE release_ind = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
607 UBYTE release_ind_cs = NOT_PRESENT_8BIT;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
608
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
609 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
610
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
611 CHECK_PCCH_Ir();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
612 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
613
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
614 TRACE_FUNCTION ("downlink_contention_resolution()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
615
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
616 frame_format = GET_FORMAT_TYPE (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
617 if (frame_format EQ U_FORMAT)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
618 { /* U frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
619 frame_cr = GET_CR (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
620 frame_type = GET_U_TYPE (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
621 if (frame_cr)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
622 { /* command */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
623 switch (frame_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
624 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
625 case SABM_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
626 if (pcch_i->sapi EQ PS_SAPI_3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
627 { /* DCCH3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
628 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
629 * According to 3GPP TS 04.06, 5.4.6.1:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
630 * SAPI = 3, Collision of unnumbered commands and responses.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
631 * Collision situations (Identical transmitted and received commands)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
632 * shall be resolved in the following way: If the transmitted and
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
633 * received unnumbered commands (SABM or DISC) are the same, the data
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
634 * link layer entities shall send the UA response at the earliest
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
635 * possible opportunity. The indicated state shall be entered after
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
636 * receiving the UA response. The data link layer entities shall each
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
637 * notify its respective layer 3 entity by means of the appropriate
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
638 * confirm primitive, i.e. DL-ESTABLISH-CONFIRM or DL-RELEASE-CONFIRM.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
639 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
640 if (!GET_LENGTH_INDICATOR (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
641 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
642 com_clear_queue (PS_SAPI_3);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
643 /* establish_cnf = TRUE; cnf will be sent at uplink opportunity */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
644
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
645 pcch_i->pf_bit_flag = GET_P_BIT (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
646 pcch->vtx = UA_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
647 pcch->va = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
648 pcch->vr = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
649 pcch->vs = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
650 pcch->rc = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
651 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
652 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
653 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
654 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
655 /* no contention resolution procedure with SAPI=3! */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
656 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
657 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
658 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
659 {/* DCCH0 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
660 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
661 * According to 3GPP TS 04.06, 5.4.1.1 General:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
662 * NOTE: SAPI=0 the data link is always established by the MS!
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
663 *
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
664 * According to 3GPP TS 04.06, 5.4.1.4 Contention resolution
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
665 * establishment procedure:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
666 * All frames other than unnumbered frame formats received for the
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
667 * SAPI in use during the establishment procedures shall be ignored.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
668 * The reception of unnumbered frames other than UA is treated as
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
669 * specified for the normal establishment case.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
670 * NOTE 4: In fact, there are no foreseen cases in which the network
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
671 * will send SABM, DISC or DM, but for sake of completeness
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
672 * these occurrences are specified and must be treated.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
673 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
674 establish_cnf = TRUE;/* Treated as normal establishment case */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
675 pcch_i->pf_bit_flag = GET_P_BIT (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
676 pcch->vtx = UA_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
677 pcch->va = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
678 pcch->vr = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
679 pcch->vs = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
680 pcch->rc = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
681 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
682 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
683 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
684
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
685 case DISC_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
686 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
687 release_ind = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
688
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
689 pcch_i->pf_bit_flag = GET_P_BIT (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
690 pcch->vtx = DM_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
691 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
692 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
693
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
694 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
695 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
696 }/* endswitch command frame_type */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
697 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
698 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
699 { /* response */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
700 switch (frame_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
701 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
702 case DM_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
703 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
704 * PATCH LE 14.09.99
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
705 * Ignore DM(F=0) frames
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
706 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
707 if (GET_P_BIT (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
708 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
709 release_ind = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
710 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
711 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
712
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
713 case UA_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
714 if (pcch_i->sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
715 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
716 if (pcch->contention_resolution)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
717 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
718 if (com_compare_L3_msg (dl_data->dcch0_queue.switch_buffer, frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
719 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
720 establish_cnf = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
721 COM_FREE_QUEUE_BUFFER(&dl_data->dcch0_queue, INDEX_SWITCH_BUFFER);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
722 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
723 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
724 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
725 release_ind = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
726 release_ind_cs = CAUSE_DL_INFO_FIELD_MISMATCH;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
727 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
728 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
729 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
730 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
731 if (!GET_LENGTH_INDICATOR (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
732 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
733 establish_cnf = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
734 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
735 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
736 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
737 release_ind = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
738 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
739 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
740 }/* endif PS_SAPI_0 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
741 else if (pcch_i->sapi EQ PS_SAPI_3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
742 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
743 if (!GET_LENGTH_INDICATOR (frame) OR (pcch->ch_type EQ L2_CHANNEL_SACCH))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
744 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
745 establish_cnf = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
746 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
747 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
748 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
749 release_ind = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
750 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
751
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
752 }/* endif PS_SAPI_3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
753
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
754 if (establish_cnf AND (pcch_i->sapi EQ PS_SAPI_0))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
755 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
756 dcch3_enable(pcch->ch_type);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
757 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
758
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
759 break;/* endbreak UA_FRAME */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
760
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
761 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
762 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
763 }/* endswitch response frame_type */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
764 }/* endifelse command/response */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
765
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
766 if (establish_cnf)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
767 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
768 drr_dl_establish_cnf (pcch->ch_type, pcch_i->sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
769 pcch->va = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
770 pcch->vr = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
771 pcch->vs = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
772 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
773 pcch_i->state = STATE_MULTIPLE_FRAME_ESTABLISHED;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
774 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
775 else if (release_ind)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
776 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
777 if (pcch_i->sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
778 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
779 if (pcch->contention_resolution)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
780 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
781 pcch->contention_resolution = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
782 COM_FREE_QUEUE_BUFFER(&dl_data->dcch0_queue, INDEX_SWITCH_BUFFER);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
783 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
784 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
785
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
786 drr_dl_release_ind (pcch->ch_type, pcch_i->sapi, release_ind_cs, FALSE);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
787 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
788 pcch_i->state = STATE_IDLE_DL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
789 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
790
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
791 }/* endif frame_format == 3 (only unnumbered frames) */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
792
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
793 return 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
794 }/* endfunc downlink_contention_resolution */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
795
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
796 static int downlink_mfe(T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
797 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
798 TRACE_EVENT_WIN ("downlink_mfe()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
799
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
800 switch (GET_FORMAT_TYPE (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
801 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
802 case I_FORMAT:/* I frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
803 case I1_FORMAT:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
804 downlink_mfe_information (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
805 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
806 case S_FORMAT: /* S frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
807 downlink_mfe_supervisory (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
808 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
809 case U_FORMAT: /* U frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
810 downlink_mfe_tr_unnumbered (pcch_i, frame,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
811 STATE_MULTIPLE_FRAME_ESTABLISHED);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
812 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
813 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
814 TRACE_EVENT_WIN ("invalid/unknown frame");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
815 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
816 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
817
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
818 return 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
819 }/* endfunc downlink_mfe */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
820
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
821 static void downlink_mfe_supervisory (T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
822 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
823 UBYTE frame_cr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
824 UBYTE frame_pollbit;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
825 UBYTE frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
826 UBYTE frame_type;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
827 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
828
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
829 CHECK_PCCH_I();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
830 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
831
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
832 TRACE_EVENT_WIN ("downlink_mfe_supervisory()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
833
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
834 frame_type = GET_S_TYPE (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
835
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
836 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
837 * Ignore RNR frame without notification
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
838 * (ETSI GSM 04.06, section 6.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
839 * "Special protocol operation on SAPI=0 and SAPI=3", page 53)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
840 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
841 if (frame_type EQ RNR_FRAME)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
842 return;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
843
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
844 frame_cr = GET_CR (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
845 frame_pollbit = GET_P_BIT (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
846 frame_nr = GET_RECEIVE_NUMBER (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
847
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
848 /* in accordance with CCITT Q.921 figure B.7 (sheet 5 to 7 of 10) */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
849 if (frame_pollbit)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
850 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
851 if (frame_cr)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
852 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
853 enquiry_response (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
854 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
855 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
856 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
857 mdl_error_ind (UNSOLICITED_SUPERVISORY_RESPONSE, pcch->ch_type, pcch_i->sapi);/* 3GPP TS 04.06, 5.4.2.2 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
858 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
859 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
860
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
861 if (com_check_nr (pcch->va, pcch->vs, frame_nr))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
862 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
863 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
864 * N(R) check is successfull
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
865 * in accordance with CCITT Q.921 figure B.7 (sheet 6 and 7 of 10)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
866 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
867
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
868 switch (frame_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
869 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
870 case RR_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
871 if (frame_nr EQ pcch->vs)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
872 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
873 /* T200 handling under ETSI GSM 04.06 section 5.5.3.1 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
874 if (((8 + frame_nr - pcch->va ) & 7) > 0 /*frame_nr > pcch->va*/)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
875 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
876
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
877 pcch->va = frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
878
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
879 free_sending_buffer (pcch->ch_type, pcch_i->sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
880 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
881 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
882 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
883 if (frame_nr NEQ pcch->va)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
884 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
885 pcch->va = frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
886 pcch_i->T200_Start = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
887 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
888 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
889 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
890 case REJ_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
891 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
892 * in accordance with ETSI GSM 04.06; chapter 5.5.4.1 i)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
893 *
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
894 * clear existing peer receiver busy condition (not applicable in GSM)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
895 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
896
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
897 /* reset timer T200 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
898 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
899 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
900 * If REJ command with P bit set to 1,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
901 * transmit an appropiate supervisory response frame with F bit set to 1
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
902 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
903 if (frame_pollbit AND frame_cr)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
904 enquiry_response (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
905 /* transmit the corresponding I frame asap */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
906 invoke_retransmission (pcch_i, frame_nr);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
907
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
908
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
909 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
910 * set its send state variable V(S) and its acknowledge state
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
911 * variable V(A) to the value of the N(R) contained in the REJ frame
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
912 * control field
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
913 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
914 pcch->vs = pcch->va = frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
915
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
916 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
917 * if it was an REJ response frame with the F bit set to 1, notify
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
918 * a protocol violation to layer 3 (cause=unsolicited supervisory frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
919 *
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
920 * fulfilled at the beginning of this function!
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
921 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
922 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
923 case RNR_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
924 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
925 * Ignore frame without notification
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
926 * (ETSI GSM 04.06, section 6.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
927 * "Special protocol operation on SAPI=0 and SAPI=3", page 53)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
928 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
929 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
930 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
931 TRACE_EVENT_WIN ("invalid S frame"); /* GSM 04.06 Annex G.3.1 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
932 mdl_error_ind (FRAME_NOT_IMPLEMENTED, pcch->ch_type, pcch_i->sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
933 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
934 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
935
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
936 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
937 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
938 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
939 nr_error_recovery (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
940 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
941 }/* endfunc downlink_mfe_supervisory */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
942
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
943
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
944 static void downlink_mfe_sabm (T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
945 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
946 TRACE_EVENT_WIN ("downlink_mfe_sabm()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
947
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
948 if (!GET_LENGTH_INDICATOR (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
949 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
950 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
951
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
952 CHECK_PCCH_I();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
953 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
954
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
955 if (pcch_i->sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
956 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
957 /* SACCH0: only unacknowledge mode available -> ignore SABM */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
958 if (pcch->ch_type EQ L2_CHANNEL_SACCH)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
959 return;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
960 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
961 * SDCCH0, FACCH: can not be a normal establishment procedure
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
962 * because for SAPI=0 the data link is always established by the MS.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
963 * Therefore only the V state variables and any exception states
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
964 * will be reseted.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
965 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
966 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
967 else if (pcch_i->sapi EQ PS_SAPI_3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
968 { /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
969 * SDCCH3, SACCH: normal establishment procedure,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
970 * might be a re-establishment according to GSM 04.06, 5.4.1.2
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
971 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
972 com_clear_queue (PS_SAPI_3);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
973 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
974
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
975 /* respond with an unnumbered acknowledgement */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
976 pcch->vtx = UA_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
977 /* with the F bit set to the same value as the P bit */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
978 pcch_i->pf_bit_flag = GET_P_BIT (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
979 /* reset timer T200 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
980 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
981 /* reset all state variables (internal sequence counter) */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
982 pcch->va = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
983 pcch->vr = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
984 pcch->vs = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
985 /* reset the retransmission counter */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
986 pcch->rc = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
987 /* clear all exception conditions */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
988 pcch->reject_exception = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
989 pcch->acknowledge_pending = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
990 /* enter the multiple-frame-established state */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
991 pcch_i->state = STATE_MULTIPLE_FRAME_ESTABLISHED;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
992 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
993 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
994 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
995 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
996 * frame_length NEQ 0 is only possible in contention resolution establishment
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
997 * initiated by mobile!
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
998 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
999 mdl_error_ind (U_FRAME_WITH_INCORRECT_PARAMETERS, pcch_i->pcch->ch_type, pcch_i->sapi);/* according to GSM 04.06, 5.4.2.1 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1000 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1001 }/* endfunc mfe_sabm */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1002
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1003 static void downlink_mfe_dm (T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1004 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1005 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1006
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1007 CHECK_PCCH_I();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1008 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1009
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1010 if (!GET_P_BIT (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1011 { /* release after unsolicited DM response during connection */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1012
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1013 /* New! Called now by mdl_error_ind() from caller of this function
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1014 * drr_dl_release_ind (dl_data, pcch->ch_type, pcch_i->sapi, NOT_PRESENT_8BIT);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1015 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1016
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1017 if ((pcch->ch_type EQ L2_CHANNEL_SDCCH) AND (pcch_i->sapi EQ PS_SAPI_3))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1018 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1019 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1020 com_clear_queue (PS_SAPI_3);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1021 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1022 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1023 }/* endfunc mfe_dm */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1024
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1025 static void downlink_mfe_tr_unnumbered (T_CCH_INTERN* pcch_i,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1026 UBYTE *frame, UBYTE state)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1027 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1028 UBYTE frame_type;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1029 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1030
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1031 TRACE_EVENT_WIN ("downlink_mfe_tr_unnumbered()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1032
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1033 CHECK_PCCH_I();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1034 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1035
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1036 frame_type = GET_U_TYPE (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1037 if (GET_CR (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1038 { /* command */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1039 switch (frame_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1040 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1041 case SABM_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1042 downlink_mfe_sabm (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1043 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1044 case UI_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1045 /* drr_dl_unitdata_ind() was called in the main downlink function */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1046 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1047 case DISC_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1048 pcch->vtx = UA_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1049 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1050 pcch_i->state = STATE_AWAITING_RELEASE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1051 #if !defined(LATE_LEAVING_DEDICATED)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1052 com_leave_dedicated (pcch->ch_type);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1053 #endif /* LATE_LEAVING_DEDICATED */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1054 if (pcch_i->sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1055 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1056 dcch3_enable(pcch->ch_type);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1057 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1058 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1059 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1060 /* GSM 04.06 Annex G.2.2, G.3.2 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1061 TRACE_EVENT_WIN_P1 ("invalid command U frame (%02x)", frame_type);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1062 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1063 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1064 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1065 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1066 { /* response */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1067 switch (frame_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1068 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1069 case DM_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1070 /* fulfill the actions required by 3GPP TS 4.06 section 5.4.2.2, table 7 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1071 if (!GET_P_BIT(frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1072 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1073 mdl_error_ind (UNSOLICITED_DM_RESPONSE_ABNORMAL_REL, pcch->ch_type, pcch_i->sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1074 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1075 else if (state EQ STATE_MULTIPLE_FRAME_ESTABLISHED)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1076 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1077 mdl_error_ind (UNSOLICITED_DM_RESPONSE, pcch->ch_type, pcch_i->sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1078 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1079
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1080 downlink_mfe_dm (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1081 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1082 case UA_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1083 mdl_error_ind (UNSOLICITED_UA_RESPONSE, pcch->ch_type, pcch_i->sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1084 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1085 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1086 /* GSM 04.06 Annex G.2.2, G.3.2 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1087 TRACE_EVENT_WIN_P1 ("invalid response U frame (%02x)", frame_type);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1088 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1089 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1090 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1091 }/* endfunc downlink_mfe_unnumbered */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1092
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1093 static void downlink_i_frame (T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1094 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1095 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1096 * in accordance with CCITT Q.921 figure B.7 (sheet 8 of 10)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1097 * in accordance with CCITT Q.921 figure B.8 (sheet 7 of 9)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1098 * according to GSM 04.06 (same as CCITT Q.921!)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1099 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1100
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1101 UBYTE frame_pollbit;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1102 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1103
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1104 CHECK_PCCH_I();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1105 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1106
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1107 frame_pollbit = GET_P_BIT (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1108
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1109 if (GET_SEND_NUMBER (frame) EQ pcch->vr)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1110 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1111 pcch->vr++;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1112 pcch->vr &= 7;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1113 pcch->reject_exception = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1114 concatenate (pcch->ch_type, pcch_i->sapi, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1115 if (!GET_M_BIT (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1116 pcch_i->dl_data_ind = TRUE;/* send DL-DATA indication */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1117
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1118 if (frame_pollbit)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1119 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1120 pcch_i->pf_bit_flag = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1121 pcch->vtx = RR_RSP;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1122 pcch->acknowledge_pending = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1123 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1124 else if (pcch->acknowledge_pending EQ FALSE)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1125 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1126 #if defined(IFRAME_AS_RR)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1127 pcch->vtx = RR_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1128 #else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1129 pcch->vtx = RR_RSP;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1130 #endif /* IFRAME_AS_RR */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1131 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1132 }/* endif ns == vr */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1133 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1134 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1135 if (pcch->reject_exception)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1136 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1137 if (frame_pollbit)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1138 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1139 pcch_i->pf_bit_flag = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1140 /*pcch->vtx = RR_RSP; */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1141 pcch->vtx = REJ_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1142 pcch->acknowledge_pending = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1143 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1144 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1145 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1146 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1147 pcch->reject_exception = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1148 pcch_i->pf_bit_flag = frame_pollbit;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1149 pcch->vtx = REJ_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1150 pcch->acknowledge_pending = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1151 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1152 if (pcch->vtx EQ REJ_CMD)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1153 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1154 TRACE_EVENT_WIN_P1 ("->REJ_CMD pf=%u", pcch_i->pf_bit_flag);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1155 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1156 }/* endelse ns != vr */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1157 }/* endfunc downlink_i_frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1158
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1159 static void downlink_mfe_information ( T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1160 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1161 UBYTE frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1162 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1163
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1164 CHECK_PCCH_I();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1165 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1166
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1167 TRACE_EVENT_WIN ("downlink_mfe_information()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1168
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1169 if (!GET_CR (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1170 { /* GSM 04.06 Annex G.2.2 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1171 TRACE_EVENT_WIN ("invalid I response (C=0)");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1172 return;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1173 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1174
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1175 frame_nr = GET_RECEIVE_NUMBER (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1176
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1177 /* in accordance with CCITT Q.921 figure B.7 (sheet 8 of 10) */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1178 downlink_i_frame (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1179
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1180 /* in accordance with CCITT Q.921 figure B.7 (sheet 9 of 10) */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1181 if (com_check_nr (pcch->va, pcch->vs, frame_nr))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1182 { /* N(R) check is successfull */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1183 if (frame_nr EQ pcch->vs)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1184 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1185
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1186 /* T200 handling under ETSI GSM 04.06 section 5.5.3.1 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1187 if (((8 + frame_nr - pcch->va ) & 7) > 0 /*frame_nr > pcch->va*/)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1188 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1189
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1190 pcch->va = frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1191 free_sending_buffer (pcch->ch_type, pcch_i->sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1192 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1193 else if (frame_nr NEQ pcch->va)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1194 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1195 pcch->va = frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1196 pcch_i->T200_Start = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1197 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1198 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1199 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1200 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1201 nr_error_recovery (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1202 }/* endifelse com_check_nr */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1203 }/* endfunc downlink_mfe_information */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1204
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1205 static int downlink_timer_recovery(T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1206 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1207 TRACE_EVENT_WIN ("downlink_timer_recovery()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1208
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1209 switch (GET_FORMAT_TYPE (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1210 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1211 case I_FORMAT:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1212 case I1_FORMAT: /* I frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1213 downlink_tr_information (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1214 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1215 case S_FORMAT: /* S frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1216 downlink_tr_supervisory (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1217 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1218 case U_FORMAT: /* U frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1219 downlink_mfe_tr_unnumbered (pcch_i, frame, STATE_TIMER_RECOVERY);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1220 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1221 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1222 TRACE_EVENT_WIN ("invalid/unknown frame");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1223 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1224 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1225
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1226 return 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1227 }/* endfunc downlink_tr */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1228
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1229 static void downlink_tr_supervisory (T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1230 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1231 UBYTE frame_cr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1232 UBYTE frame_pollbit;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1233 UBYTE frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1234 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1235
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1236 CHECK_PCCH_I();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1237 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1238
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1239 TRACE_EVENT_WIN ("downlink_tr_supervisory()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1240
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1241 frame_cr = GET_CR (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1242 frame_pollbit = GET_P_BIT (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1243 frame_nr = GET_RECEIVE_NUMBER (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1244
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1245 switch (GET_S_TYPE (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1246 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1247 case RR_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1248 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1249 * in accordance with CCITT Q.921 figure B.8 (sheet 5 and 6 of 9) and
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1250 * 3GPP 04.06, 5.5.3.1 "On receipt of a valid I frame or supervisory frame"
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1251 * and 5.5.7 "Waiting acknowledgement".
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1252 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1253 if (frame_pollbit AND frame_cr)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1254 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1255 enquiry_response (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1256 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1257
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1258 if (com_check_nr (pcch->va, pcch->vs, frame_nr))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1259 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1260 /* N(R) check is successfull */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1261
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1262 TRACE_EVENT_WIN_P5 ("V(A)=%d =< N(R)=%d =< V(S)=%d check is successfull, pf=%u cr=%u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1263 pcch->va, frame_nr, pcch->vs, frame_pollbit, frame_cr);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1264
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1265 pcch->va = frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1266
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1267 if (frame_pollbit AND !frame_cr)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1268 { /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1269 * 3GPP 04.06, 5.5.7:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1270 * The timer recovery state is only cleared if the DL receives a valid
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1271 * supervisory frame response with the F bit set to 1.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1272 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1273 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1274 pcch_i->state = STATE_MULTIPLE_FRAME_ESTABLISHED;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1275 /* acknowledgement according to GSM 04.06, 5.5.3.1*/
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1276 free_sending_buffer (pcch->ch_type, pcch_i->sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1277 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1278 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1279 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1280 invoke_retransmission (pcch_i, frame_nr);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1281 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1282 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1283 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1284 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1285 nr_error_recovery (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1286 }/* endifelse com_check_nr */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1287 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1288
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1289 case REJ_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1290 #if defined(NEW_REJ_ACK)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1291 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1292 * in accordance with
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1293 * 3GPP 04.06, 5.5.3.1 "On receipt of a valid I frame or supervisory frame"
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1294 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1295 if (com_check_nr (pcch->va, pcch->vs, frame_nr))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1296 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1297 /* N(R) check is successfull */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1298
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1299 TRACE_EVENT_WIN_P5 ("V(A)=%d =< N(R)=%d =< V(S)=%d check is successfull, pf=%u cr=%u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1300 pcch->va, frame_nr, pcch->vs, frame_pollbit, frame_cr);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1301
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1302 /* acknowledgement according to GSM 04.06, 5.5.3.1*/
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1303 free_sending_buffer (pcch->ch_type, pcch_i->sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1304
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1305 pcch->va = frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1306 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1307 #endif /* NEW_REJ_ACK */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1308
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1309 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1310 * in accordance with GSM 04.06; chapter 5.5.4.1
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1311 * Receipt of a valid REJ frame [ii) and iii)]
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1312 *
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1313 * clear existing peer receiver busy condition (not applicable in GSM)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1314 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1315
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1316 if (frame_pollbit AND !frame_cr)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1317 {/* REJ response with F bit set to 1 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1318 /* clear the timer recovery state */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1319 pcch_i->state = STATE_MULTIPLE_FRAME_ESTABLISHED;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1320
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1321 /* reset timer T200 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1322 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1323
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1324 #if defined(NEW_REJ_ACK)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1325 /* transmit the corresponding I frame asap */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1326 if (pcch->va NEQ frame_nr)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1327 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1328 TRACE_EVENT_WIN_P2 ("REJ: V(A)=%d != N(R)=%d => invoke retransmission",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1329 pcch->va, frame_nr);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1330
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1331 invoke_retransmission (pcch_i, frame_nr);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1332 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1333 #else /* NEW_REJ_ACK */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1334 /* transmit the corresponding I frame asap */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1335 invoke_retransmission (pcch_i, frame_nr);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1336 #endif /* NEW_REJ_ACK */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1337
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1338
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1339 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1340 * set its send state variable V(S) and its acknowledge state
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1341 * variable V(A) to the value of the N(R) contained in the REJ frame
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1342 * control field
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1343 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1344 pcch->vs = pcch->va = frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1345 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1346 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1347 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1348 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1349 * set its its acknowledge state variable V(A) to the value
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1350 * of the N(R) contained in the REJ frame control field
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1351 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1352 pcch->va = frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1353
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1354 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1355 * if REJ command with P bit set to 1,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1356 * transmit an appropiate supervisory response frame with F bit set to 1
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1357 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1358 if (frame_pollbit AND frame_cr)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1359 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1360 enquiry_response (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1361 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1362 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1363 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1364
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1365 case RNR_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1366 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1367 * ignore RNR frame without notification
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1368 * (ETSI GSM 04.06, section 6.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1369 * "Special protocol operation on SAPI=0 and SAPI=3", page 53)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1370 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1371 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1372 /* frame not implemented, */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1373 TRACE_EVENT_WIN ("invalid S frame"); /* GSM 04.06 Annex G.3.1 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1374 return;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1375 }/* endswitch frame_type */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1376
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1377
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1378 }/* endfunc downlink_tr_supervisory */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1379
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1380 static void downlink_tr_information ( T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1381 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1382 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1383 UBYTE frame_nr;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1384
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1385 CHECK_PCCH_I();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1386 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1387
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1388 TRACE_EVENT_WIN ("downlink_tr_information()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1389
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1390 if (!GET_CR (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1391 { /* GSM 04.06 Annex G.2.2 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1392 TRACE_EVENT_WIN ("invalid I response (C=0)");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1393 return;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1394 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1395
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1396 /* in accordance with CCITT Q.921 figure B.8 (sheet 7 of 9) */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1397 downlink_i_frame (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1398
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1399 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1400 * in accordance with CCITT Q.921 figure B.8 (sheet 8 of 9) and
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1401 * 3GPP 04.06, 5.5.3.1 "On receipt of a valid I frame or supervisory frame"
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1402 * and 5.5.7 "Waiting acknowledgement".
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1403 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1404 frame_nr = GET_RECEIVE_NUMBER (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1405 if (com_check_nr (pcch->va, pcch->vs, frame_nr))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1406 pcch->va = frame_nr;/* N(R) check is successfull */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1407 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1408 nr_error_recovery (pcch_i, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1409 }/* endfunc downlink_tr_information */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1410
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1411 static int downlink_awaiting_release(T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1412 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1413 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1414
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1415 CHECK_PCCH_Ir();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1416 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1417
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1418 TRACE_FUNCTION ("downlink_awaiting_release()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1419
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1420 if (GET_FORMAT_TYPE (frame) EQ U_FORMAT)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1421 { /* U frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1422 if (GET_CR (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1423 { /* command */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1424 switch (GET_U_TYPE (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1425 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1426 case SABM_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1427 if (pcch_i->sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1428 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1429 pcch->vtx = DM_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1430 pcch_i->pf_bit_flag = GET_P_BIT (frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1431 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1432 pcch_i->state = STATE_IDLE_DL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1433 drr_dl_release_cnf (pcch->ch_type, PS_SAPI_0, FALSE);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1434 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1435 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1436 case UI_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1437 /* drr_dl_unitdata_ind() was called in the main downlink function */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1438 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1439 case DISC_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1440 pcch->vtx = UA_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1441 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1442 #if !defined(LATE_LEAVING_DEDICATED)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1443 com_leave_dedicated (pcch->ch_type);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1444 #endif /* LATE_LEAVING_DEDICATED */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1445 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1446 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1447 /* GSM 04.06 Annex G.2.2, G.3.2 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1448 TRACE_EVENT_WIN_P1 ("invalid command U frame (%02x)", GET_U_TYPE (frame));
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1449 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1450 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1451 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1452 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1453 { /* response */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1454 switch (GET_U_TYPE (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1455 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1456 case DM_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1457 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1458 * PATCH LE 14.09.99
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1459 * Ignore DM(F=0) frames
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1460 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1461 if (!GET_P_BIT (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1462 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1463
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1464 /* the same as UA_FRAME */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1465 /*lint -fallthrough*/
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1466
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1467 case UA_FRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1468 pcch_i->T200_Stop = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1469 #if defined(LATE_LEAVING_DEDICATED)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1470 com_leave_dedicated (pcch->ch_type);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1471 #endif /* LATE_LEAVING_DEDICATED */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1472 pcch_i->state = STATE_IDLE_DL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1473 drr_dl_release_cnf (pcch->ch_type, pcch_i->sapi, TRUE);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1474 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1475
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1476 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1477 TRACE_EVENT_WIN_P1 ("invalid response U frame (%02x)", GET_U_TYPE (frame));
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1478 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1479 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1480 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1481 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1482 return 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1483 }/* endfunc downlink_awaiting_release */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1484
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1485 static void invoke_retransmission (T_CCH_INTERN* pcch_i, UBYTE frame_nr)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1486 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1487 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1488
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1489 CHECK_PCCH_I();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1490 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1491
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1492 if (pcch->vs NEQ frame_nr)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1493 { /* decrement V(S) and recover queue for retransmission */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1494 TRACE_EVENT_WIN ("invoke retransmission");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1495
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1496 pcch->vs--;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1497 pcch->vs &= 7;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1498 com_recover_queue (pcch_i->sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1499 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1500 }/* endfunc invoke_retransmission */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1501
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1502
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1503 static void enquiry_response (T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1504 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1505 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1506
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1507 CHECK_PCCH_I();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1508 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1509
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1510 TRACE_EVENT_WIN ("enquiry_response()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1511 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1512 * in accordance with ETSI GSM 04.06, 5.5.3.2 Receiving supervisory
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1513 * commands with the P bit set to "1" and ETSI GSM 04.06, 5.5.4.1 iii
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1514 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1515
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1516 pcch_i->pf_bit_flag = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1517 pcch->acknowledge_pending = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1518 pcch->vtx = RR_RSP;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1519 }/* endfunc enquiry_response */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1520
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1521 #if defined(_SIMULATION_)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1522 LOCAL const char * const _str_error_ind_cause[] =
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1523 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1524 "T200_EXPIRED_N200_PLUS_1_TIMES, \"T200 expired (N200 + 1 times)\"",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1525 "CS_REEST_REQ, \"re-establishment request\"",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1526 "UNSOLICITED_UA_RESPONSE, \"unsolicited UA response\"",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1527 "UNSOLICITED_DM_RESPONSE, \"unsolicited DM response\"",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1528 "UNSOLICITED_DM_RESPONSE_ABNORMAL_REL, \"unsolicited DM response, multiple frame established state\"",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1529 "UNSOLICITED_SUPERVISORY_RESPONSE, \"unsolicited supervisory response\"",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1530 "SEQUENCE_ERROR, \"sequence error\"",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1531 "U_FRAME_WITH_INCORRECT_PARAMETERS, \"U frame with incorrect parameters\"",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1532 "S_FRAME_WITH_INCORRECT_PARAMETERS, \"S frame with incorrect parameters\"",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1533 "I_FRAME_WITH_INCORRECT_USE_OF_M_BIT, \"I frame with incorrect use of M bit\"",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1534 "I_FRAME_WITH_INCORRECT_LENGTH, \"I frame with incorrect length\"",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1535 "FRAME_NOT_IMPLEMENTED, \"frame not implemented\"",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1536 };
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1537 #endif /* _SIMULATION_ */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1538
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1539 static void mdl_error_ind (UBYTE cause,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1540 UBYTE channel_type, UBYTE sapi)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1541 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1542 TRACE_EVENT_WIN_P2 ("mdl_error_ind(%u %s)", cause, _str_error_ind_cause[cause]);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1543 switch(cause)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1544 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1545 case T200_EXPIRED_N200_PLUS_1_TIMES:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1546 case UNSOLICITED_DM_RESPONSE:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1547 case UNSOLICITED_DM_RESPONSE_ABNORMAL_REL:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1548 case SEQUENCE_ERROR:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1549 drr_error_ind (channel_type, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1550 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1551 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1552 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1553 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1554 }/* endfunc mdl_error_ind */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1555
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1556 static void nr_error_recovery (T_CCH_INTERN* pcch_i, UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1557 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1558
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1559 T_CCH* pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1560
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1561 CHECK_PCCH_I();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1562 pcch = pcch_i->pcch;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1563
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1564 TRACE_EVENT_WIN ("nr_error_recovery()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1565 DL_OFFLINE_TRACE (TRACE_DL_EVENT, TRACE_CH_UNKNOWN, pcch->ch_type, "N(R) sequence error");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1566
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1567 switch (pcch->ch_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1568 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1569 case L2_CHANNEL_SDCCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1570 if (pcch_i->sapi EQ PS_SAPI_3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1571 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1572 /*lint -fallthrough*/
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1573 case L2_CHANNEL_SACCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1574 case L2_CHANNEL_FACCH_F:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1575 case L2_CHANNEL_FACCH_H:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1576 if ((GET_P_BIT (frame) EQ 1) AND !GET_M_BIT (frame))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1577 pcch_i->dl_data_ind = TRUE; /* indicate a complete message to layer 3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1578 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1579 pcch_i->dl_data_ind = FALSE;/* no indication if P bit set to "0" or message is incomplete */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1580
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1581 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1582 * GSM 04.06, 5.7.4 The data link shall remain in current state
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1583 * until it´s release by layer 3 ???
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1584 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1585 pcch_i->mdl_error_ind = SEQUENCE_ERROR; /* send mdl error ind after sequence error */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1586
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1587 DL_EM_CHANNEL_FAILURE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1588
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1589 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1590 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1591 pcch->vtx = EMPTY_CMD;/* no answer after N(R) sequence error */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1592 }/* endfunc nr_error_recovery */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1593
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1594
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1595 static void concatenate (UBYTE ch_type, UBYTE sapi,UBYTE *frame)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1596 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1597 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1598 switch (ch_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1599 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1600 case L2_CHANNEL_SDCCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1601 if (sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1602 com_concatenate (&dl_data->dcch0_in_msg, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1603 else if (sapi EQ PS_SAPI_3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1604 com_concatenate (&dl_data->dcch3_in_msg, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1605 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1606 case L2_CHANNEL_SACCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1607 if (sapi EQ PS_SAPI_3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1608 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1609 com_concatenate (&dl_data->dcch3_in_msg, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1610 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1611 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1612 case L2_CHANNEL_FACCH_F:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1613 case L2_CHANNEL_FACCH_H:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1614 if (sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1615 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1616 com_concatenate (&dl_data->dcch0_in_msg, frame);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1617 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1618 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1619 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1620 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1621 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1622 }/* endfunc concatenate */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1623
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1624 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1625 +--------------------------------------------------------------------+
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1626 | PROJECT : GSM-PS (6147) MODULE : DL_COM |
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1627 | STATE : code ROUTINE : free_sending_buffer |
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1628 +--------------------------------------------------------------------+
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1629
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1630 PURPOSE : After confirmation of an I frame the sending buffer is
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1631 released if it was the last segment. This avoids
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1632 resending of I frames after resumption.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1633
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1634 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1635 static void free_sending_buffer ( UBYTE ch_type, UBYTE sapi)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1636 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1637 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1638 T_QUEUE *queue = NULL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1639
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1640 TRACE_EVENT_WIN_P2 ("free_sending_buffer():%s SAPI=%u", CH_TYPE_NAME[ch_type], sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1641
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1642 switch (ch_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1643 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1644 case L2_CHANNEL_SDCCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1645 if (sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1646 queue = &dl_data->dcch0_queue;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1647 else if (sapi EQ PS_SAPI_3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1648 queue = &dl_data->dcch3_queue;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1649 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1650 case L2_CHANNEL_SACCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1651 if (sapi EQ PS_SAPI_3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1652 queue = &dl_data->dcch3_queue;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1653 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1654 case L2_CHANNEL_FACCH_F:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1655 case L2_CHANNEL_FACCH_H:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1656 if (sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1657 queue = &dl_data->dcch0_queue;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1658 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1659 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1660 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1661 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1662
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1663 if (queue)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1664 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1665 if (queue->switch_buffer)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1666 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1667 TRACE_EVENT_WIN_P3 ("CNF on %s SAPI=%u %s (switch_buffer)",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1668 CH_TYPE_NAME[queue->switch_buffer->ch_type],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1669 queue->switch_buffer->sapi,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1670 queue->switch_buffer->cnf ? "CNF required" : "");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1671
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1672 com_l3trace (TRACE_UPLINK, queue->switch_buffer->ch_type, (UBYTE *)queue->switch_buffer);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1673 COM_FREE_QUEUE_BUFFER ( queue, INDEX_SWITCH_BUFFER);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1674 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1675 else if (queue->sending_buffer)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1676 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1677 TRACE_EVENT_WIN_P4 ("CNF on %s SAPI=%u %s (sending_buffer) act_length=%u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1678 CH_TYPE_NAME[queue->sending_buffer->ch_type],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1679 queue->sending_buffer->sapi,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1680 queue->sending_buffer->cnf ? "CNF required" : "",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1681 queue->act_length);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1682
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1683 if (queue->act_length EQ 0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1684 { /* entire message has been sent */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1685 com_l3trace (TRACE_UPLINK, queue->sending_buffer->ch_type, (UBYTE *)queue->sending_buffer);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1686
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1687 if (queue->sending_buffer->cnf)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1688 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1689 drr_dl_data_cnf (sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1690 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1691 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1692 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1693 COM_FREE_QUEUE_BUFFER (queue, INDEX_SENDING_BUFFER);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1694 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1695 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1696 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1697 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1698 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1699 TRACE_EVENT_WIN_P2 ("%s SAPI=%u: sending_buffer and switch_buffer=NULL !!!",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1700 CH_TYPE_NAME[ch_type], sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1701 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1702 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1703 }/* endfunc concatenate */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1704
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1705 static void T200_expiry ( UBYTE channel, UBYTE sapi)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1706 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1707 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1708 UBYTE old_state;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1709 UBYTE new_state;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1710 T_CCH * pcch = &dl_data->cch[channel];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1711 UBYTE N200_counter;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1712
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1713 TRACE_FUNCTION ("T200_expiry()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1714
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1715 switch (pcch->ch_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1716 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1717 case L2_CHANNEL_SACCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1718 N200_counter = SACCH_N200;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1719 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1720 case L2_CHANNEL_SDCCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1721 N200_counter = SDCCH_N200;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1722 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1723 case L2_CHANNEL_FACCH_F:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1724 N200_counter = FACCH_N200_FR;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1725 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1726 case L2_CHANNEL_FACCH_H:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1727 N200_counter = FACCH_N200_HR;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1728 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1729 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1730 N200_counter = NOT_PRESENT_8BIT;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1731 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1732 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1733
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1734 new_state = old_state = dl_data->state[channel];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1735 switch (old_state)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1736 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1737 case STATE_CONTENTION_RESOLUTION:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1738 repeat_sabm (channel, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1739 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1740
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1741 case STATE_MULTIPLE_FRAME_ESTABLISHED:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1742 pcch->rc = 1;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1743 pcch->p_bit_flag= 1;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1744 pcch->time_flag = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1745 new_state = STATE_TIMER_RECOVERY;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1746 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1747
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1748 case STATE_TIMER_RECOVERY:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1749 if (N200_counter EQ NOT_PRESENT_8BIT)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1750 break; /* invalid channel */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1751
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1752 if (pcch->rc >= N200_counter)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1753 { /* release connection due to T200 expired N200 plus 1 times */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1754
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1755 TRACE_EVENT_WIN_P1 ("T200 expired, N200=%u", N200_counter);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1756
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1757 /* New! Called now by mdl_error_ind().
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1758 * drr_dl_release_ind (dl_data, pcch->ch_type, sapi, NOT_PRESENT_8BIT);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1759 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1760 mdl_error_ind (T200_EXPIRED_N200_PLUS_1_TIMES, pcch->ch_type, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1761
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1762 if (sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1763 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1764 dcch3_init_dl_data();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1765 pcch->T200_counter = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1766 pcch->time_flag = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1767 pcch->contention_resolution = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1768 pcch->vtx = EMPTY_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1769 new_state = STATE_IDLE_DL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1770 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1771 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1772 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1773 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1774 pcch->rc++;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1775 pcch->p_bit_flag = 1;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1776 pcch->time_flag = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1777 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1778 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1779
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1780 case STATE_AWAITING_RELEASE:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1781 if (pcch->rc >= N200_ESTABLISHMENT)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1782 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1783 TRACE_EVENT_WIN_P1 ("T200 expired, N200=%u", N200_ESTABLISHMENT);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1784 drr_dl_release_cnf (pcch->ch_type, sapi, TRUE);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1785 new_state = STATE_IDLE_DL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1786
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1787 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1788 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1789 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1790 pcch->rc++;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1791 pcch->vtx = DISC_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1792 pcch->time_flag = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1793 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1794 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1795
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1796 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1797 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1798 }/* endswitch old_state */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1799
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1800 if (new_state NEQ old_state)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1801 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1802 set_channel_state (channel, new_state);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1803 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1804
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1805 }/* endfunc T200_expiry */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1806
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1807 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1808 +--------------------------------------------------------------------+
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1809 | PROJECT : GSM-PS (6147) MODULE : state |
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1810 | STATE : code ROUTINE : repeat_sabm |
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1811 +--------------------------------------------------------------------+
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1812
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1813 PURPOSE : Repeat if possible the SABM command.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1814
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1815 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1816
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1817 static void repeat_sabm (UBYTE channel, UBYTE sapi)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1818 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1819 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1820 T_CCH* pcch = &dl_data->cch[channel];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1821
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1822 TRACE_FUNCTION ("repeat_sabm()");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1823
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1824 if (pcch->rc >= N200_ESTABLISHMENT)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1825 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1826 if (sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1827 pcch->contention_resolution = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1828
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1829 DL_OFFLINE_TRACE (TRACE_DL_EVENT, channel, pcch->ch_type, ">N200_EST");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1830 SYST_TRACE_P ((SYST, "DL: >N200 of SABM"));
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1831 TRACE_ERROR ("DL: >N200 of SABM");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1832
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1833 DL_EM_CHANNEL_ESTABLISHMENT_FAILED;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1834
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1835 mdl_error_ind(T200_EXPIRED_N200_PLUS_1_TIMES, pcch->ch_type, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1836 set_channel_state (channel, STATE_IDLE_DL);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1837 /* New! Called now by mdl_error_ind().
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1838 * drr_dl_release_ind (dl_data, pcch->ch_type, sapi, NOT_PRESENT_8BIT);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1839 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1840 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1841 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1842 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1843 pcch->rc++;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1844 pcch->vtx = SABM_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1845 pcch->time_flag = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1846 TRACE_EVENT_P1 ("DL: T200 %u. repeat of SABM", pcch->rc);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1847 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1848 }/* endfunc repeat_sabm */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1849
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1850 GLOBAL void set_channel_state (UBYTE channel, UBYTE state)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1851 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1852 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1853 if (dl_data->state[channel] NEQ state)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1854 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1855 #ifdef TRACE_STATE
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1856 vsi_o_state_ttrace ("STATE_%s:%s -> %s", PROCESS_NAME[channel],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1857 channel EQ C_DCCH3 ? STATE_DCCH3_NAME[dl_data->state[channel]]:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1858 STATE_DCCH0_NAME[dl_data->state[channel]],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1859 channel EQ C_DCCH3 ? STATE_DCCH3_NAME[state] :
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1860 STATE_DCCH0_NAME[state]);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1861 #endif /* TRACE_STATE */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1862 dl_data->state[channel] = state;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1863 DL_OFFLINE_TRACE (TRACE_CHSTATE, channel, dl_data->cch[channel].ch_type, NULL);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1864 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1865 }/* endfunc set_channel_state */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1866
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1867 static void set_T200_counter (T_CCH* pcch, UBYTE sapi)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1868 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1869 switch (pcch->ch_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1870 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1871 case L2_CHANNEL_SACCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1872 pcch->T200_counter = sapi EQ PS_SAPI_0 ?
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1873 T200_SDCCH_SAPI_0_CNT : T200_SACCH_SAPI_3_CNT;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1874 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1875 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1876 TRACE_EVENT_WIN_P1 ("set_T200_counter: unknown ch_type=%u -> use SDCCH", pcch->ch_type);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1877 /*lint -fallthrough*/
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1878 case L2_CHANNEL_SDCCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1879 pcch->T200_counter = sapi EQ PS_SAPI_0 ?
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1880 T200_SDCCH_SAPI_0_CNT : T200_SDCCH_SAPI_3_CNT;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1881 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1882 case L2_CHANNEL_FACCH_F:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1883 pcch->T200_counter = T200_FACCH_SAPI_0_CNT_FR;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1884 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1885 case L2_CHANNEL_FACCH_H:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1886 pcch->T200_counter = T200_FACCH_SAPI_0_CNT_HR;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1887 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1888 }/* endswitch ch_type */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1889 pcch->time_flag = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1890
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1891 TRACE_EVENT_WIN_P3 ("set_T200_counter: %s, SAPI=%u: %u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1892 CH_TYPE_NAME[pcch->ch_type], sapi, pcch->T200_counter);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1893 }/* endfunc set_T200_counter */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1894
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1895 #if defined(DELAYED_RELEASE_IND)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1896 static void delayed_release_ind( UBYTE channel)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1897 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1898 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1899 /* delay DL RELEASE IND to RR for FTA 25.2.3 *********** */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1900 if (dl_data->release_ind_ch_type NEQ NOT_PRESENT_8BIT)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1901 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1902 if (dl_data->release_ind_delay > 0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1903 dl_data->release_ind_delay--;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1904
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1905 if (dl_data->release_ind_delay EQ 0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1906 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1907 DL_OFFLINE_TRACE (TRACE_DL_EVENT, TRACE_CH_UNKNOWN,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1908 dl_data->release_ind_ch_type, "UL:send delayed REL IND");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1909 drr_dl_release_ind (dl_data->release_ind_ch_type,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1910 dl_data->release_ind_sapi, NOT_PRESENT_8BIT, TRUE);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1911 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1912 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1913 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1914 DL_OFFLINE_TRACE (TRACE_DL_EVENT, TRACE_CH_UNKNOWN,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1915 dl_data->release_ind_ch_type, "UL:pend. delay REL IND");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1916 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1917
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1918 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1919 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1920
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1921 #endif /* DELAYED_RELEASE_IND */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1922
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1923 T_RADIO_FRAME* dl_uplink(UBYTE channel, UBYTE sapi,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1924 UBYTE no_signalling_mode, BOOL recursive)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1925 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1926 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1927 T_CCH* pcch = &dl_data->cch[channel];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1928 T_RADIO_FRAME* p_l2_frame = &dl_data->l2_frame;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1929 int send = UPLINK_NULL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1930
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1931 TRACE_EVENT_WIN_P3 ("uplink(): %s dcch0_ch_type:%s dedi=%u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1932 CH_TYPE_NAME[pcch->ch_type], CH_TYPE_NAME[dl_data->dcch0_ch_type], dl_data->RR_dedicated);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1933 TRACE_EVENT_WIN_P6 ("UL: DCCH0=%s,%s vr=%u vs=%u va=%u T200=%u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1934 CH_TYPE_NAME[dl_data->cch[C_DCCH0].ch_type],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1935 STATE_DCCH0_NAME[dl_data->state[C_DCCH0]],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1936 dl_data->cch[C_DCCH0].vr, dl_data->cch[C_DCCH0].vs, dl_data->cch[C_DCCH0].va,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1937 dl_data->cch[C_DCCH0].T200_counter);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1938 TRACE_EVENT_WIN_P6 ("UL: DCCH3=%s,%s vr=%u vs=%u va=%u T200=%u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1939 CH_TYPE_NAME[dl_data->cch[C_DCCH3].ch_type],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1940 STATE_DCCH3_NAME[dl_data->state[C_DCCH3]],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1941 dl_data->cch[C_DCCH3].vr, dl_data->cch[C_DCCH3].vs, dl_data->cch[C_DCCH3].va,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1942 dl_data->cch[C_DCCH3].T200_counter);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1943
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1944
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1945 /* check SACCH SAPI and channel */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1946 if (pcch->ch_type EQ L2_CHANNEL_SACCH)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1947 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1948 if (!dl_data->RR_dedicated)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1949 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1950 sapi = PS_SAPI_0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1951 send = UPLINK_EMPTY;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1952 TRACE_EVENT_WIN ("SACCH without dedicated channel: change SAPI->0, UPLINK_EMPTY");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1953 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1954 else if (dl_data->state[C_DCCH0] EQ STATE_SUSPENDED)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1955 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1956 sapi = PS_SAPI_0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1957 send = UPLINK_REPORT;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1958 TRACE_EVENT_WIN ("SACCH during suspended dedicated channel: change SAPI->0, UPLINK_REPORT");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1959 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1960 else if (sapi EQ PS_SAPI_3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1961 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1962 if ((dl_data->state[C_DCCH0] <= STATE_IDLE_DL)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1963 OR
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1964 (dl_data->dcch0_ch_type EQ L2_CHANNEL_SDCCH)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1965 OR
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1966 ((dl_data->cch[C_DCCH3].vtx EQ EMPTY_CMD) AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1967 (!com_queue_awaiting_transmission (PS_SAPI_3)) AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1968 (dl_data->state[C_DCCH3] NEQ STATE_AWAITING_ESTABLISHMENT)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1969 ) )
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1970 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1971 sapi = PS_SAPI_0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1972 TRACE_EVENT_WIN ("SACCH with SAPI=3 only together with FACCH and frame is awaiting tx: change SAPI->0");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1973 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1974 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1975 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1976 channel = C_DCCH3;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1977 pcch = &dl_data->cch[channel];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1978 TRACE_EVENT_WIN ("SACCH with SAPI=3 together with FACCH: change channel->C_DCCH3");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1979 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1980 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1981 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1982 else if ((dl_data->RR_dedicated) AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1983 (dl_data->dcch0_ch_type NEQ pcch->ch_type))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1984 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1985 TRACE_EVENT_WIN_P2 ("dcch0_ch_type (%s) NEQ %s -> unexpected,unsolicited,invalid channel => UPLINK_EMPTY",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1986 CH_TYPE_NAME[dl_data->dcch0_ch_type],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1987 CH_TYPE_NAME[dl_data->cch[C_DCCH0].ch_type]);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1988 send = UPLINK_EMPTY;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1989 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1990
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1991 /* decrease T200 counter ************************************ */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1992 if (channel EQ C_DCCH3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1993 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1994 if (dl_data->cch[C_DCCH3].T200_counter >= T200_ACTIVE)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1995 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1996 dl_data->cch[C_DCCH3].T200_counter--;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1997 TRACE_EVENT_WIN_P2 ("T200(SAPI_0)=%u T200(SAPI_3)=%u*",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1998 dl_data->cch[C_DCCH0].T200_counter, dl_data->cch[C_DCCH3].T200_counter);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1999 /*DL_OFFLINE_TRACE (TRACE_DL_EVENT, channel, pcch->ch_type, "dec T200(SAPI_3)");*/
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2000 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2001 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2002 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2003 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2004 if (pcch->ch_type NEQ L2_CHANNEL_SACCH) /* no T200 for SACCH with SAPI=0 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2005 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2006 if (dl_data->cch[C_DCCH0].T200_counter >= T200_ACTIVE)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2007 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2008 dl_data->cch[C_DCCH0].T200_counter--;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2009 TRACE_EVENT_WIN_P2 ("T200(SAPI_0)=%u* T200(SAPI_3)=%u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2010 dl_data->cch[C_DCCH0].T200_counter, dl_data->cch[C_DCCH3].T200_counter);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2011 /*DL_OFFLINE_TRACE (TRACE_DL_EVENT, channel, pcch->ch_type, "dec T200(SAPI_0)");*/
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2012 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2013 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2014 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2015
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2016 /* check activity of DL ************************************* */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2017 if (dl_data->dl_active AND dl_data->state[channel] EQ STATE_MULTIPLE_FRAME_ESTABLISHED)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2018 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2019 TRACE_EVENT_WIN_P1 ("uplink(): %s dl_active", PROCESS_NAME[channel]);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2020 DL_OFFLINE_TRACE (TRACE_DL_EVENT, channel, pcch->ch_type, "UL:&dl_active");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2021
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2022 /* signalling only */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2023 send = UPLINK_EMPTY;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2024 }/* endif dl_active */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2025
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2026 #if defined(DELAYED_SABM)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2027 /* delay uplink SABM to PL for FTA 26.6.6.1 and 25.2.3 *********** */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2028 if ((channel EQ C_DCCH0) AND (dl_data->dcch0_sabm_flag NEQ NOT_PRESENT_8BIT))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2029 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2030 dcch0_delay_sabm (pcch);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2031 if (dl_data->dcch0_sabm_flag NEQ NOT_PRESENT_8BIT)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2032 send = UPLINK_EMPTY; /* send dummy only */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2033 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2034 #endif /* DELAYED_SABM */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2035
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2036
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2037 #if defined(DELAYED_RELEASE_IND)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2038 delayed_release_ind (channel);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2039 #endif /* DELAYED_RELEASE_IND */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2040
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2041 if ((send EQ UPLINK_NULL) OR (send EQ UPLINK_EMPTY))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2042 { /* After a L3 release at the last downlink DL should send a DISC */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2043 TRACE_EVENT_WIN_P6 ("uplink():%s %s SAPI=%u vtx=%s %s (#%u)",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2044 PROCESS_NAME[channel], CH_TYPE_NAME[pcch->ch_type], sapi,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2045 VTX_NAME[pcch->vtx], SEND_NAME[send], __LINE__);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2046 switch (channel)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2047 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2048 case C_DCCH0:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2049 send = dcch0_check_disc (send);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2050 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2051 case C_DCCH3:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2052 send = dcch3_check_disc (send);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2053 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2054 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2055 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2056 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2057 TRACE_EVENT_WIN_P6 ("uplink():%s %s SAPI=%u vtx=%s %s (#%u)",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2058 PROCESS_NAME[channel], CH_TYPE_NAME[pcch->ch_type], sapi,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2059 VTX_NAME[pcch->vtx], SEND_NAME[send], __LINE__);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2060 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2061
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2062 if (send EQ UPLINK_NULL)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2063 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2064 TRACE_EVENT_WIN_P5 ("uplink():%s %s SAPI=%u vtx=%s %s",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2065 PROCESS_NAME[channel], CH_TYPE_NAME[pcch->ch_type], sapi,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2066 VTX_NAME[pcch->vtx], recursive ? "RECURSIVE" : "");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2067
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2068 TRACE_EVENT_WIN_P8 ("UL: DCCH%u=%s,%s vr=%u vs=%u va=%u T200=%u (#%u)",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2069 sapi, CH_TYPE_NAME[dl_data->cch[channel].ch_type],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2070 STATE_DCCH3_NAME[dl_data->state[channel]],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2071 dl_data->cch[channel].vr, dl_data->cch[channel].vs, dl_data->cch[channel].va,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2072 dl_data->cch[channel].T200_counter, __LINE__);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2073
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2074 /* check timer T200 expiry ****************************** */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2075 if ((channel EQ C_DCCH0) AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2076 (dl_data->cch[C_DCCH0].T200_counter EQ T200_EXPIRED))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2077 T200_expiry (C_DCCH0, PS_SAPI_0);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2078 if ((channel EQ C_DCCH3) AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2079 (dl_data->cch[C_DCCH3].T200_counter EQ T200_EXPIRED))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2080 T200_expiry (C_DCCH3, PS_SAPI_3);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2081
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2082 TRACE_EVENT_WIN_P8 ("UL: DCCH%u=%s,%s vr=%u vs=%u va=%u T200=%u (#%u)",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2083 sapi, CH_TYPE_NAME[dl_data->cch[channel].ch_type],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2084 STATE_DCCH3_NAME[dl_data->state[channel]],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2085 dl_data->cch[channel].vr, dl_data->cch[channel].vs, dl_data->cch[channel].va,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2086 dl_data->cch[channel].T200_counter, __LINE__);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2087
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2088 /* state machine **************************************** */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2089 switch (dl_data->state[channel])
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2090 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2091 case STATE_IDLE_DL:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2092 if (pcch->vtx EQ EMPTY_CMD AND !dl_data->RR_dedicated)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2093 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2094 send = uplink_idle (channel, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2095 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2096 case STATE_CONTENTION_RESOLUTION: /* the same as STATE_AWAITING_ESTABLISHMENT */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2097 send = uplink_awaiting_establishment (channel, sapi, no_signalling_mode);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2098 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2099 case STATE_MULTIPLE_FRAME_ESTABLISHED:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2100 send = uplink_mfe (channel, sapi, no_signalling_mode);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2101 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2102 case STATE_TIMER_RECOVERY:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2103 send = uplink_timer_recovery (channel, sapi, no_signalling_mode);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2104 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2105 case STATE_AWAITING_RELEASE:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2106 send = uplink_awaiting_release ( channel, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2107 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2108 case STATE_SUSPENDED: /* only DCCH0 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2109 send = UPLINK_NULL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2110 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2111 case STATE_DISABLED: /* only SABM/UA or SACCH and SDCCH (SAPI 3) */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2112 if (channel EQ C_DCCH3)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2113 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2114 if (pcch->vtx EQ UA_CMD)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2115 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2116 send = uplink_idle (channel, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2117 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2118 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2119 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2120 send = UPLINK_EMPTY;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2121 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2122 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2123 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2124 }/* endswitch channel_state */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2125
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2126 }/* endif send == NULL */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2127
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2128 TRACE_EVENT_WIN_P8 ("UL: DCCH%u=%s,%s vr=%u vs=%u va=%u T200=%u (#%u)",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2129 sapi, CH_TYPE_NAME[dl_data->cch[channel].ch_type],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2130 STATE_DCCH3_NAME[dl_data->state[channel]],
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2131 dl_data->cch[channel].vr, dl_data->cch[channel].vs, dl_data->cch[channel].va,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2132 dl_data->cch[channel].T200_counter, __LINE__);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2133
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2134 if (pcch->ch_type EQ L2_CHANNEL_SACCH)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2135 { /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2136 * According to 3GPP TS 04.05, 4.2.2 Priority:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2137 * The priority arrangement on the SACCH must ensure that if a SAPI = 3
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2138 * frame is awaiting transmission, two SAPI = 0 frames are not sent in
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2139 * consecutive SACCH frames. In addition, for the mobile to network
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2140 * direction it must also be ensured that any SAPI = 3 frame is followed
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2141 * by at least one SAPI = 0 frame.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2142 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2143
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2144 TRACE_EVENT_WIN_P3 ("sacch_last_uplink_sapi=%u SAPI=%u send=%s",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2145 dl_data->sacch_last_uplink_sapi, sapi, SEND_NAME[send]);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2146
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2147 if ((dl_data->sacch_last_uplink_sapi EQ PS_SAPI_3) OR
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2148 ((sapi EQ PS_SAPI_3 ) AND (send EQ UPLINK_EMPTY)))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2149 {/* last uplinked SACCH frame was one with SAPI=3
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2150 * or
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2151 * no SACCH SAPI=3 frame is awaiting transmission
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2152 * -> uplink of a SACCH SAPI=0 frame
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2153 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2154 sapi = PS_SAPI_0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2155 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2156
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2157 if (send EQ UPLINK_EMPTY)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2158 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2159 sapi = PS_SAPI_0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2160 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2161
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2162 if ((sapi EQ PS_SAPI_0) AND (dl_data->state[C_DCCH0] >= STATE_SUSPENDED))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2163 { /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2164 * uplink measurement reports only if SAPI=0 is suspended,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2165 * on contention resolution procedure, established or awaiting release
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2166 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2167 send = UPLINK_REPORT;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2168 TRACE_EVENT_WIN ("uplink(): SACCH REPORT now");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2169 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2170
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2171 TRACE_EVENT_WIN_P2 ("sacch_last_uplink_sapi:=%u->%u", dl_data->sacch_last_uplink_sapi, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2172 dl_data->sacch_last_uplink_sapi = sapi;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2173 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2174 else if ((pcch->ch_type EQ L2_CHANNEL_SDCCH) AND (channel NEQ C_DCCH3))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2175 { /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2176 * According to 3GPP TS 04.05, 4.2.2 Priority:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2177 * The priority between data links on SDCCH shall be as follows:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2178 * Highest priority : SAPI = 0, Lowest priority : SAPI = 3.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2179 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2180 if ((sapi EQ PS_SAPI_0) AND (send <= UPLINK_EMPTY))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2181 { /* special case: nothing is awaiting transmission for SAPI=0 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2182 if ((dl_data->cch[C_DCCH3].vtx NEQ EMPTY_CMD) OR
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2183 com_queue_awaiting_transmission(PS_SAPI_3) OR
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2184 (dl_data->cch[C_DCCH3].T200_counter NEQ T200_STOPPED))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2185 {/* something is awaiting transmission for SAPI=3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2186 if (dl_data->state[C_DCCH0] >= STATE_CONTENTION_RESOLUTION)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2187 { /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2188 * uplink SAPI=3 only if SAPI=0 is on contention resolution procedure
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2189 * or established or awaiting release
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2190 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2191 send = UPLINK_DCCH3;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2192 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2193 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2194
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2195 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2196 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2197 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2198 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2199 /* no special treatment of FACCH */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2200 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2201
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2202 /* return uplink frame buffer pointer dependent on the value of send */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2203 TRACE_EVENT_WIN_P4 ("%s on %s SAPI=%u RR_dedicated=%u",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2204 SEND_NAME[send], CH_TYPE_NAME[pcch->ch_type], sapi, dl_data->RR_dedicated);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2205
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2206 switch (send)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2207 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2208 case UPLINK_NORMAL:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2209 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2210
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2211 case UPLINK_UA:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2212 case UPLINK_UA_F:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2213 com_build_UA_response (pcch->ch_type, sapi, (UBYTE)((send EQ UPLINK_UA_F) ? 1 : 0));
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2214 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2215
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2216 case UPLINK_IFRAME:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2217 case UPLINK_IFRAME_P:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2218 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2219 UBYTE m_bit;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2220 UBYTE p_bit = (send EQ UPLINK_IFRAME_P) ? 1 : 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2221 T_QUEUE *queue;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2222
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2223 if (pcch->ch_type EQ L2_CHANNEL_SACCH)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2224 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2225 sapi = PS_SAPI_3; /* acknowledged mode only for SAPI=3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2226 TRACE_EVENT_WIN ("SACCH with I frame: acknowledged mode only for SAPI=3");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2227 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2228
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2229 if (sapi EQ PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2230 queue = &dl_data->dcch0_queue;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2231 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2232 queue = &dl_data->dcch3_queue;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2233
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2234 if (send EQ UPLINK_IFRAME)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2235 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2236 com_read_queue (pcch->ch_type, sapi, &m_bit);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2237 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2238 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2239 {/* TIMER_RECOVERY state -> repetition of the last frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2240 pcch->vs--;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2241 pcch->vs &= 7;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2242 pcch->p_bit_flag = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2243 m_bit = queue->m_bit; /* remember last m bit */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2244 TRACE_EVENT_WIN_P2 ("TIMER_RECOVERY state: decrement vs to %u, remember m=%u", pcch->vs, m_bit);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2245 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2246
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2247
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2248 com_build_I_command (pcch->ch_type, sapi, pcch->vs, pcch->vr,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2249 p_bit, m_bit, queue);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2250 pcch->vs++;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2251 pcch->vs &= 7;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2252 TRACE_EVENT_WIN_P4 ("%s SAPI=%u new vs=%u (pcch=%08x)",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2253 CH_TYPE_NAME[pcch->ch_type], sapi, pcch->vs, pcch);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2254 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2255 set_T200_counter (pcch, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2256 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2257
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2258 case UPLINK_RR:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2259 case UPLINK_RR_F:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2260 if (pcch->ch_type EQ L2_CHANNEL_SACCH)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2261 {/*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2262 * There are some tests at the start of dl_uplink() to determine the right
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2263 * SAPI value for SACCH. But the resulting value may be wrong because of
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2264 * the priority arrangement according to 3GPP TS 04.05, section 4.2.2.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2265 * In case the MS has to uplink a RR frame it is clear that
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2266 * L2 is in acknowledged mode and this can be done only with
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2267 * a SAPI value of 3 for SACCH.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2268 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2269 sapi = PS_SAPI_3; /* acknowledged mode only for SAPI=3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2270 TRACE_EVENT_WIN ("SACCH with supervisory frame: acknowledged mode only for SAPI=3");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2271 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2272 com_build_RR_response (pcch->ch_type, sapi, pcch->vr,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2273 (UBYTE)((send EQ UPLINK_RR_F) ? 1 : 0));
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2274 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2275
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2276 case UPLINK_REJ:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2277 case UPLINK_REJ_F:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2278 if (pcch->ch_type EQ L2_CHANNEL_SACCH)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2279 {/*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2280 * There are some tests at the start of dl_uplink() to determine the right
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2281 * SAPI value for SACCH. But the resulting value may be wrong because of
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2282 * the priority arrangement according to 3GPP TS 04.05, section 4.2.2.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2283 * In case the MS has to uplink a REJ frame it is clear that
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2284 * L2 is in acknowledged mode and this can be done only with
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2285 * a SAPI value of 3 for SACCH.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2286 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2287 sapi = PS_SAPI_3; /* acknowledged mode only for SAPI=3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2288 TRACE_EVENT_WIN ("SACCH with supervisory frame: acknowledged mode only for SAPI=3");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2289 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2290 com_build_REJ_response (pcch->ch_type, sapi, pcch->vr,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2291 (UBYTE)((send EQ UPLINK_REJ_F) ? 1 : 0));
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2292 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2293
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2294 case UPLINK_REPORT:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2295 if (dl_data->RR_dedicated)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2296 {/* measurement report only in RR dedicated mode */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2297 sacch0_send_data ();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2298 com_l3trace (TRACE_UACK_UP, pcch->ch_type, (UBYTE *)p_l2_frame+5);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2299
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2300
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2301 /* no deleting of vtx!!! */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2302 return p_l2_frame;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2303 /* break; not necessary */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2304 }/* endif measurement report only in RR dedicated mode */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2305
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2306 /* else go through to UPLINK_EMPTY */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2307 /*lint -fallthrough*/
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2308
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2309 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2310 possible_reset_dcch0_ch_type();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2311
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2312 /* check RR message with short PD, short L2 header type 1, format Bter */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2313 if ((dl_data->state[C_DCCH0] >= STATE_SUSPENDED) AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2314 dl_data->rr_short_pd_buffer.l_buf AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2315 (dl_data->rr_short_pd_ch_type EQ pcch->ch_type))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2316 { /* RR message with short PD, short L2 header type 1, format Bter */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2317 com_build_UI_Bter (pcch->ch_type);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2318 return p_l2_frame;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2319 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2320
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2321 if (((pcch->ch_type EQ L2_CHANNEL_FACCH_F) OR
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2322 (pcch->ch_type EQ L2_CHANNEL_FACCH_H))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2323 AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2324 ((no_signalling_mode NEQ SIG_ONLY)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2325 #if defined(DELAYED_SABM)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2326 OR
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2327 /* suppress UI frames if delayed SABM is pending
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2328 * (independent from signalling mode) */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2329 (dl_data->dcch0_sabm_flag NEQ NOT_PRESENT_8BIT)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2330 #endif /* DELAYED_SABM */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2331 #if defined(DELAYED_RELEASE_IND)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2332 OR
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2333 (dl_data->release_ind_ch_type NEQ NOT_PRESENT_8BIT)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2334 #endif /* DELAYED_RELEASE_IND */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2335 ))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2336 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2337 TRACE_EVENT_WIN ("UPLINK_NULL return");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2338 return NULL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2339 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2340 /* break; not necessary */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2341
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2342 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2343 T_RADIO_FRAME* empty_frame;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2344
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2345 TRACE_EVENT_WIN ("UPLINK_EMPTY return");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2346 /* The use of one byte array instead of two T_RADIO_FRAME structures
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2347 * saves 21 byte. Casting is in this case the better way then two calls
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2348 * of memcpy.
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2349 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2350 if (pcch->ch_type EQ L2_CHANNEL_SACCH)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2351 empty_frame = (T_RADIO_FRAME*)(&l2_empty_frame[0]);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2352 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2353 empty_frame = (T_RADIO_FRAME*)(&l2_empty_frame[2]);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2354
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2355 ATRC (empty_frame, 23);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2356
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2357 return empty_frame;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2358 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2359 /* break; not necessary */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2360
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2361 case UPLINK_DCCH3:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2362 return dl_uplink (C_DCCH3, PS_SAPI_3, no_signalling_mode, TRUE);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2363 /* break; not necessary */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2364 }/* endswitch send */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2365
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2366
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2367 /*
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2368 * UPLINK_NORMAL, UPLINK_IFRAME (_P), UPLINK_UA (_F),
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2369 * UPLINK_RR (_F), UPLINK_REJ (_F)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2370 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2371 TRACE_EVENT_WIN_P5 ("%s SAPI=%u delete vtx=%s ->EMPTY_CMD (%s#%u)",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2372 CH_TYPE_NAME[pcch->ch_type], sapi, VTX_NAME[pcch->vtx], __FILE10__, __LINE__);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2373 pcch->vtx = EMPTY_CMD;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2374
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2375 possible_reset_dcch0_ch_type();
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2376
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2377 return p_l2_frame;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2378 }/* endfunc dl_uplink */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2379
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2380 static int uplink_idle (UBYTE channel, UBYTE sapi)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2381 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2382 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2383 T_CCH* pcch = &dl_data->cch[channel];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2384 int ret = UPLINK_NORMAL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2385 int ua_response = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2386
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2387 TRACE_EVENT_WIN_P3 ("uplink_idle(): %s %s SAPI=%d",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2388 PROCESS_NAME[channel], CH_TYPE_NAME[pcch->ch_type], sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2389
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2390 switch (channel)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2391 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2392 case C_DCCH0:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2393 switch (pcch->vtx)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2394 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2395 case UA_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2396 ret = pcch->f_bit ? UPLINK_UA_F : UPLINK_UA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2397 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2398 case DM_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2399 com_build_DM_response (pcch->ch_type, sapi, pcch->f_bit);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2400 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2401 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2402 ret = UPLINK_EMPTY;/* no SAPI=3 frame if DCCH0 is idle */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2403 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2404 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2405 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2406
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2407 case C_DCCH3:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2408 switch (pcch->vtx)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2409 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2410 case UA_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2411 ua_response = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2412 ret = pcch->f_bit ? UPLINK_UA_F : UPLINK_UA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2413 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2414 case DM_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2415 com_build_DM_response (pcch->ch_type, PS_SAPI_3, 1);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2416 ret = UPLINK_NORMAL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2417 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2418 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2419 ret = UPLINK_EMPTY;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2420 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2421 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2422 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2423 }/* endswitch channel */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2424
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2425 if (ua_response AND (ret EQ UPLINK_UA_F))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2426 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2427 drr_dl_establish_ind (pcch->ch_type, sapi,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2428 (UBYTE)(com_queue_awaiting_transmission (sapi) ? DL_UNSERVED : DL_ALL_DONE));
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2429 set_channel_state (channel, STATE_MULTIPLE_FRAME_ESTABLISHED);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2430 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2431
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2432 return ret;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2433 }/* endfunc uplink_idle */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2434
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2435 static int uplink_awaiting_establishment (UBYTE channel, UBYTE sapi,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2436 UBYTE no_signalling_mode)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2437 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2438 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2439 T_CCH* pcch = &dl_data->cch[channel];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2440 int ret = UPLINK_NORMAL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2441 int ua_response = FALSE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2442 int sabm_command = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2443
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2444 TRACE_EVENT_WIN_P3 ("uplink_awaiting_establishment(): %s %s SAPI=%d",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2445 PROCESS_NAME[channel], CH_TYPE_NAME[pcch->ch_type], sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2446
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2447 if (pcch->time_flag)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2448 set_T200_counter (pcch, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2449
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2450 switch (channel)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2451 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2452 case C_DCCH0:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2453 if (pcch->vtx EQ SABM_CMD)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2454 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2455 if (pcch->contention_resolution)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2456 sabm_command = 2; /* com_build_SABM with L3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2457 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2458 sabm_command = 1; /* com_build_SABM without L3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2459 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2460 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2461 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2462 ret = UPLINK_EMPTY;/* no SAPI=0 frame is waiting transmission */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2463 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2464 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2465
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2466 case C_DCCH3:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2467 switch (pcch->vtx)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2468 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2469 case SABM_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2470 sabm_command = 1; /* com_build_SABM without L3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2471 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2472 case UA_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2473 ua_response = TRUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2474 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2475 case DM_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2476 com_build_DM_response (pcch->ch_type, sapi, pcch->f_bit);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2477 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2478 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2479 ret = UPLINK_EMPTY;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2480 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2481 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2482
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2483 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2484 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2485
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2486 if (ua_response)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2487 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2488 drr_dl_establish_cnf (pcch->ch_type, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2489 set_channel_state (channel, STATE_MULTIPLE_FRAME_ESTABLISHED);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2490
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2491 ret = pcch->f_bit ? UPLINK_UA_F : UPLINK_UA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2492 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2493 else if (sabm_command)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2494 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2495 com_build_SABM(pcch->ch_type, sapi, sabm_command EQ 2);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2496 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2497
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2498 return ret;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2499 }/* endfunc uplink_awaiting_establishment */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2500
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2501 static int uplink_mfe (UBYTE channel, UBYTE sapi, UBYTE no_signalling_mode)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2502 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2503 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2504 T_CCH* pcch = &dl_data->cch[channel];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2505 int ret = UPLINK_NORMAL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2506
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2507 TRACE_EVENT_WIN_P6 ("uplink_mfe(): %s:%s SAPI=%d vtx=%s (vs=%u va+1=%u)",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2508 PROCESS_NAME[channel], CH_TYPE_NAME[pcch->ch_type], sapi,
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2509 VTX_NAME[pcch->vtx], pcch->vs, (pcch->va + 1)&7 );
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2510
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2511 if (pcch->time_flag)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2512 set_T200_counter (pcch, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2513
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2514 switch (pcch->vtx)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2515 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2516 case RR_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2517 if (pcch->f_bit_flag)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2518 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2519 ret = UPLINK_RR_F;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2520 pcch->f_bit_flag = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2521 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2522 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2523 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2524 if (!com_queue_awaiting_transmission (sapi))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2525 ret = UPLINK_RR;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2526 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2527 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2528 if (pcch->vs EQ ((pcch->va + 1)&7))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2529 ret = UPLINK_RR;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2530 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2531 ret = UPLINK_IFRAME;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2532 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2533 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2534 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2535
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2536 case UA_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2537 ret = pcch->f_bit ? UPLINK_UA_F : UPLINK_UA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2538 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2539
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2540 case RR_RSP:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2541 ret = pcch->f_bit ? UPLINK_RR_F : UPLINK_RR;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2542 pcch->f_bit_flag = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2543 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2544
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2545 case REJ_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2546 ret = pcch->f_bit ? UPLINK_REJ_F : UPLINK_REJ;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2547 pcch->f_bit_flag = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2548 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2549
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2550 default: /* vtx = ELSE */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2551 switch (channel)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2552 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2553 case C_DCCH0:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2554 if (com_queue_awaiting_transmission (PS_SAPI_0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2555 AND
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2556 (pcch->vs NEQ ((pcch->va + 1)&7)))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2557 ret = UPLINK_IFRAME;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2558 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2559 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2560 ret = UPLINK_EMPTY;/* no SAPI=0 frame is waiting transmission */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2561 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2562 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2563
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2564 case C_DCCH3:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2565 if (com_queue_awaiting_transmission (PS_SAPI_3))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2566 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2567 if (pcch->vs EQ ((pcch->va + 1)&7))
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2568 ret = UPLINK_EMPTY;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2569 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2570 ret = UPLINK_IFRAME;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2571 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2572 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2573 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2574 ret = dcch3_check_disc (UPLINK_EMPTY);/* no SAPI=3 frame is waiting transmission */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2575 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2576 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2577 }/* endswitch channel */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2578 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2579 }/* endswitch vtx */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2580
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2581
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2582 return ret;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2583 }/* endfunc uplink_mfe */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2584
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2585 static int uplink_timer_recovery (UBYTE channel, UBYTE sapi, UBYTE no_signalling_mode)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2586 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2587 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2588 T_CCH* pcch = &dl_data->cch[channel];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2589 int ret = UPLINK_NORMAL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2590
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2591 TRACE_EVENT_WIN_P3 ("uplink_timer_recovery(): %s %s SAPI=%d",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2592 PROCESS_NAME[channel], CH_TYPE_NAME[pcch->ch_type], sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2593
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2594 if (pcch->time_flag)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2595 set_T200_counter (pcch, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2596
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2597 switch (pcch->vtx)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2598 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2599 case RR_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2600 if (pcch->f_bit_flag)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2601 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2602 ret = UPLINK_RR_F;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2603 pcch->f_bit_flag = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2604 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2605 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2606 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2607 if (pcch->p_bit_flag)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2608 ret = UPLINK_IFRAME_P;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2609 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2610 ret = UPLINK_RR;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2611 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2612 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2613
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2614 case UA_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2615 ret = pcch->f_bit ? UPLINK_UA_F : UPLINK_UA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2616 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2617
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2618 case RR_RSP:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2619 ret = pcch->f_bit ? UPLINK_RR_F : UPLINK_RR;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2620 pcch->f_bit_flag = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2621 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2622
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2623 case REJ_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2624 ret = pcch->f_bit ? UPLINK_REJ_F : UPLINK_REJ;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2625 pcch->f_bit_flag = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2626 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2627
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2628 default: /* vtx = ELSE */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2629 TRACE_EVENT_WIN_P3 ("%s SAPI=%u vtx=%s",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2630 CH_TYPE_NAME[pcch->ch_type], sapi, VTX_NAME[pcch->vtx]);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2631
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2632 if (pcch->p_bit_flag)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2633 ret = UPLINK_IFRAME_P;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2634 else
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2635 switch (channel)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2636 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2637 case C_DCCH0:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2638 ret = UPLINK_EMPTY;/* no SAPI=0 frame is waiting transmission */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2639 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2640
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2641 case C_DCCH3:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2642 ret = dcch3_check_disc (UPLINK_EMPTY);/* no SAPI=3 frame is waiting transmission */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2643 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2644 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2645 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2646 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2647
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2648 #if 0 /* decrement first short before sending the frame */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2649 if (ret EQ UPLINK_IFRAME_P)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2650 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2651 pcch->vs--;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2652 pcch->vs &= 7;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2653 pcch->p_bit_flag = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2654 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2655 #endif /* 0 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2656 return ret;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2657 }/* endfunc uplink_timer_recovery */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2658
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2659 GLOBAL int uplink_awaiting_release (UBYTE channel, UBYTE sapi)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2660 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2661 GET_INSTANCE_DATA;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2662 T_CCH* pcch = &dl_data->cch[channel];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2663 int ret = UPLINK_NORMAL;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2664
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2665 TRACE_EVENT_WIN_P3 ("uplink_awaiting_release(): %s %s SAPI=%d",
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2666 PROCESS_NAME[channel], CH_TYPE_NAME[pcch->ch_type], sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2667
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2668 if (pcch->time_flag)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2669 set_T200_counter (pcch, sapi);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2670
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2671 switch (pcch->vtx)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2672 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2673 case DISC_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2674 /* DL_OFFLINE_TRACE (TRACE_DL_EVENT, channel, pcch->ch_type, "UL:Send DISC"); */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2675 com_build_DISC_command (pcch->ch_type, sapi, 1);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2676 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2677 case UA_CMD:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2678 set_channel_state (channel, STATE_IDLE_DL);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2679
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2680 #if defined(DELAYED_RELEASE_IND)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2681 switch (pcch->ch_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2682 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2683 #if defined(DL_FACCH_RELEASE_DELAY_VALUE) && (DL_FACCH_RELEASE_DELAY_VALUE > 0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2684 case L2_CHANNEL_FACCH_F:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2685 case L2_CHANNEL_FACCH_H:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2686 /* delay DL RELEASE IND to RR for testcase 25.2.3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2687 dl_data->release_ind_ch_type = pcch->ch_type;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2688 dl_data->release_ind_sapi = sapi;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2689 if (dl_data->release_ind_delay EQ 0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2690 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2691 dl_data->release_ind_delay = DL_FACCH_RELEASE_DELAY_VALUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2692 DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH0, pcch->ch_type, "delay REL IND on FACCH");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2693 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2694 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2695 #endif /* DL_FACCH_RELEASE_DELAY_VALUE */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2696 #if defined(DL_SDCCH_RELEASE_DELAY_VALUE) && (DL_SDCCH_RELEASE_DELAY_VALUE > 0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2697 case L2_CHANNEL_SDCCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2698 /* delay DL RELEASE IND to RR for testcase 25.2.3 */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2699 dl_data->release_ind_ch_type = pcch->ch_type;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2700 dl_data->release_ind_sapi = sapi;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2701 if (dl_data->release_ind_delay EQ 0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2702 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2703 dl_data->release_ind_delay = DL_SDCCH_RELEASE_DELAY_VALUE;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2704 DL_OFFLINE_TRACE (TRACE_DL_EVENT, channel, pcch->ch_type, "delay REL IND on SDCCH");
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2705 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2706 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2707 #endif /* DL_SDCCH_RELEASE_DELAY_VALUE */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2708 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2709 drr_dl_release_ind (pcch->ch_type, sapi, NOT_PRESENT_8BIT, TRUE);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2710 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2711 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2712 #else /* DELAYED_RELEASE_IND */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2713 drr_dl_release_ind (pcch->ch_type, sapi, NOT_PRESENT_8BIT, TRUE);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2714 #endif /* DELAYED_RELEASE_IND */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2715
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2716 #if defined(LATE_LEAVING_DEDICATED)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2717 com_leave_dedicated (pcch->ch_type);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2718 #endif /* LATE_LEAVING_DEDICATED */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2719 ret = UPLINK_UA_F;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2720 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2721
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2722 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2723 switch (pcch->ch_type)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2724 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2725 case L2_CHANNEL_SACCH:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2726 if (channel EQ C_DCCH0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2727 ret = UPLINK_REPORT;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2728 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2729 default:
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2730 if (channel EQ C_DCCH0)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2731 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2732 pcch = &dl_data->cch[C_DCCH3];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2733 if (pcch->time_flag)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2734 set_T200_counter (pcch, PS_SAPI_3);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2735 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2736 ret = UPLINK_EMPTY;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2737 break;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2738 }/* endswitch channel */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2739 }/* endswitch vtx */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2740
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2741 return ret;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2742 }/* endfunc uplink_awaiting_release */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2743
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2744 #if defined(CHECK_PCCHI)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2745 static void check_pcch_i (T_CCH_INTERN* pcch_i, int line)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2746 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2747 char buf[23];
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2748 int ret = 0;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2749
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2750 if (pcch_i EQ NULL)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2751 ret = -1;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2752 else if (pcch_i->pcch EQ NULL)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2753 ret = -2;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2754
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2755 if (ret)
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2756 {
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2757 sprintf (buf, "#%d pcch=NULL %d", line, -ret);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2758 DL_OFFLINE_TRACE (TRACE_DL_EVENT, TRACE_CH_UNKNOWN, 0,buf);
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2759 }
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2760
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2761 return ret;
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2762 }/* endfunc check_pcch_i */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2763 #endif /* CHECK_PCCHI */
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2764
fa8dc04885d8 src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2765 #endif /* DL_C */