annotate src/g23m-fad/ppp/ppp_ftxf.c @ 701:35e7f9d0379f

targets: add TARGET_HAS_BUZZER to c11x, c139 and dsample This new target config preprocessor symbol was introduced in Tourmaline in connection with the new approach to playing buzzer melodies via PWT, properly omitting the responsible code on targets where BU output controls the vibrator instead. That code is not present in Magnetite and we have no plans to backport it here, but target header files should be kept consistent between the two trees, especially given that we plan to support FC Venus target in Magnetite.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 26 Mar 2022 19:51:34 +0000
parents 90eb61ecd093
children
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project :
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4 | Modul :
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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 is part of the entity PPP and implements all
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18 | procedures and functions as described in the
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19 | SDL-documentation (FTX-statemachine)
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20 +-----------------------------------------------------------------------------
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21 */
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22
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23 #define ENTITY_PPP
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24
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25 /*==== INCLUDES =============================================================*/
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26
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27 #include "typedefs.h" /* to get Condat data types */
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28 #include "vsi.h" /* to get a lot of macros */
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29 #include "macdef.h" /* to get a lot of macros */
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30 #include "custom.h" /* to get a lot of macros */
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31 /*lint -efile(766,gsm.h) */
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32 #include "gsm.h" /* to get a lot of macros */
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33 /*lint -efile(766,cnf_ppp.h) */
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34 #include "cnf_ppp.h" /* to get cnf-definitions */
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35 /*lint -efile(766,mon_ppp.h) */
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36 #include "mon_ppp.h" /* to get mon-definitions */
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37 #include "prim.h" /* to get the definitions of used SAP and directions */
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38 #include "dti.h" /* to get the DTILIB definitions */
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39 #include "ppp.h" /* to get the global entity definitions */
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40
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41 #include "ppp_arbf.h" /* to get function interface from arb */
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42
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43 /*==== CONST ================================================================*/
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44
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45 /*==== LOCAL VARS ===========================================================*/
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46
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47 /*==== PRIVATE FUNCTIONS ====================================================*/
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48
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49 /*==== PUBLIC FUNCTIONS =====================================================*/
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50
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51 #ifndef PPP_INT_RAM
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52 /*
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53 +------------------------------------------------------------------------------
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54 | Function : ftx_init
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55 +------------------------------------------------------------------------------
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56 | Description : The function ftx_init() initializes Frame Transmit (FTX)
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57 |
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58 | Parameters : no parameters
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59 |
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60 +------------------------------------------------------------------------------
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61 */
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62 GLOBAL void ftx_init ()
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63 {
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64 USHORT i;
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65
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66 TRACE_FUNCTION( "ftx_init" );
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67
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68 ppp_data->ftx.acfc = PPP_ACFC_DEFAULT;
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69 ppp_data->ftx.pfc = PPP_PFC_DEFAULT;
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70
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71 /*
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72 * inititialise ACCMTAB
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73 */
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74 for(i=0;i<=255;i++)
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75 {
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76 if(i<0x20)
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77 {
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78 ppp_data->ftx.accmtab[i] = (PPP_ACCM_DEFAULT & (1UL << i)) ? 0xFF : 0x00;
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79 }
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80 else if((i EQ PPP_HDLC_FLAG) ||
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81 (i EQ PPP_HDLC_ESCAPE) ||
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82 (i EQ PPP_ASCII_DEL))
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83 {
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84 ppp_data->ftx.accmtab[i] = 0xFF;
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85 }
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86 else
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87 {
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88 ppp_data->ftx.accmtab[i] = 0x00;
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89 }
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90 }
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91
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92
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93 INIT_STATE( PPP_SERVICE_FTX , FTX_DEAD );
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94 } /* ftx_init() */
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95 #endif /* PPP_INT_RAM */
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96
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97
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98
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99 #ifndef PPP_FLASH_ROM
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100 /*
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101 +------------------------------------------------------------------------------
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102 | Function : ftx_get_frame
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103 +------------------------------------------------------------------------------
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104 | Description : The function ftx_get_frame() puts the given packet into a HDLC
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105 | frame. A FCS is calculated and put at the the end of the
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106 | packet. After that every byte is examined and preceeded with an
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107 | escape character when certain condiitions are met.
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108 |
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109 | This function has been optimized - FCS calculation and escaping
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110 | are done in the same loop.
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111 |
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112 | Parameters : ptype - packet type
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113 | packet - pointer to a generic data descriptor
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114 | ptr_frame - returns a list of generic data descriptors
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115 |
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116 +------------------------------------------------------------------------------
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117 */
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118 GLOBAL void ftx_get_frame (USHORT ptype, T_desc2* packet, T_desc_list2* ptr_frame)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120 T_desc2 *temp_desc1, *temp_desc2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 USHORT calc_fcs;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 USHORT i;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 UBYTE currentByte;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 UBYTE escape;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 TRACE_FUNCTION( "ftx_get_frame" );
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 * create a new descriptor for address, control and protocol field and put
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 * it in front of the linked descriptor list
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 * 1 octet address field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 * 1 octet control field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 * 2 octets protocol field (uncompressed)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 *----------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 * 4 octets
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 MALLOC (temp_desc1, (USHORT)(sizeof(T_desc2) - 1 + 4));
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 temp_desc1->next = (ULONG)packet;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 packet = temp_desc1;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 packet->len = 0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 * if no address and control field compression add both
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 * in LCP packets we need always address and control field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 if((ppp_data->ftx.acfc EQ FALSE) ||
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 (ptype EQ DTI_PID_LCP))
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 packet->buffer[packet->len] = 0xff;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 packet->len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 packet->buffer[packet->len] = 0x03;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 packet->len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 * if no protocol field compression add most significant octet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 * of the protocol field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 * in LCP packets we need always uncompressed protocol field
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 if((ppp_data->ftx.pfc EQ FALSE) ||
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 (ptype > 0x00ff) ||
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 (ptype EQ DTI_PID_LCP))
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 packet->buffer[packet->len] = (UBYTE)(ptype >> 8);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 packet->len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 * add protocol field least significant octet
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 packet->buffer[packet->len] = (UBYTE)(ptype & 0xff);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 packet->len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 * create complete frame
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 * use async-control-character-map and copy the packet into descriptor with
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 * a size of FTX_GET_DESC_SIZE
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 MALLOC (temp_desc1, (USHORT)(sizeof(T_desc2) - 1 + FTX_GET_DESC_SIZE));
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 temp_desc1->next = (ULONG)NULL;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 ptr_frame->first = (ULONG)temp_desc1;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 * reset ptr_frame->list_len, it will be incremented by temp_desc1->len
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 * when the packet is completely processed, at the end it will contain
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 * the length of the whole frame in bytes
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 ptr_frame->list_len = 0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 * insert HDLC-Flag - to mark the start of the frame
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 temp_desc1->len = 1;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 temp_desc1->size = 1;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 temp_desc1->offset = 1;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 temp_desc1->buffer[0] = PPP_HDLC_FLAG;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 escape=FALSE;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 * init FCS
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 calc_fcs = PPP_INITFCS;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 * ATTENTION: the following two while loops contain equivalent
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 * code - if you edit the code make sure you edit BOTH loops
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 if(ptype EQ DTI_PID_LCP)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 while(packet NEQ NULL)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 i=0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 while(i < packet->len)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 currentByte = packet->buffer[i];
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 if(escape EQ TRUE)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 temp_desc1->buffer[temp_desc1->len] = currentByte ^ 0x20;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 calc_fcs=(calc_fcs >> 8) ^
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 ppp_data->fcstab[(calc_fcs ^ currentByte) & 0xff];
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 escape=FALSE;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 i++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 * In LCP packets we escape ALL characters below 0x20.
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 * In addition to that PPP_HDLC_FLAG, PPP_HDLC_ESCAPE,
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 * PPP_ASCII_DEL are escaped too. These characters are marked in
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 * in the ACCM table
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 else if((currentByte < 0x20) || ppp_data->ftx.accmtab[currentByte])
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 temp_desc1->buffer[temp_desc1->len] = PPP_HDLC_ESCAPE;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 escape = TRUE;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 else
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 temp_desc1->buffer[temp_desc1->len] = currentByte;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 calc_fcs=(calc_fcs >> 8) ^
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 ppp_data->fcstab[(calc_fcs ^ currentByte) & 0xff];
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 i++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
253
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 temp_desc1->len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 if(temp_desc1->len >= FTX_GET_DESC_SIZE)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
258 ptr_frame->list_len +=temp_desc1->len;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
259
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
260 temp_desc2=temp_desc1;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 MALLOC (temp_desc1,
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
262 (USHORT)(sizeof(T_desc2) - 1 + FTX_GET_DESC_SIZE));
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
263
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
264 temp_desc1->len=0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
265 temp_desc1->next = (ULONG)NULL;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
266
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
267 temp_desc2->next=(ULONG)temp_desc1;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
268 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
269 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
270
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
271 temp_desc2=packet;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
272 packet=(T_desc2*)packet->next;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
273 MFREE(temp_desc2);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
274 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
275 ptr_frame->list_len +=temp_desc1->len;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
276 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
277 else
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
278 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
279 while(packet NEQ NULL)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
280 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
281 i=0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
282 while(i < packet->len)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
283 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
284 currentByte = packet->buffer[i];
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
285
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
286 if(escape EQ TRUE)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
287 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
288 temp_desc1->buffer[temp_desc1->len] = currentByte ^ 0x20;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
289
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
290 calc_fcs=(calc_fcs >> 8) ^
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
291 ppp_data->fcstab[(calc_fcs ^ currentByte) & 0xff];
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
292
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
293 escape=FALSE;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
294 i++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
295 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
296
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
297 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
298 * In packets other than LCP we escape only those characters
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
299 * below 0x20 that are marked in the ACCM table.
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
300 * In addition to that PPP_HDLC_FLAG, PPP_HDLC_ESCAPE,
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
301 * PPP_ASCII_DEL are escaped too. These characters are marked in
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
302 * in the same table.
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
303 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
304 else if(ppp_data->ftx.accmtab[currentByte])
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
305 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
306 temp_desc1->buffer[temp_desc1->len] = PPP_HDLC_ESCAPE;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
307 escape = TRUE;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
308 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
309
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
310 else
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
311 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
312 temp_desc1->buffer[temp_desc1->len] = currentByte;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
313
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
314 calc_fcs=(calc_fcs >> 8) ^
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
315 ppp_data->fcstab[(calc_fcs ^ currentByte) & 0xff];
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
316
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
317 i++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
318 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
319
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
320 temp_desc1->len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
321
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
322 if(temp_desc1->len >= FTX_GET_DESC_SIZE)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
323 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
324 ptr_frame->list_len +=temp_desc1->len;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
325
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
326 temp_desc2=temp_desc1;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
327 MALLOC (temp_desc1,
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
328 (USHORT)(sizeof(T_desc2) - 1 + FTX_GET_DESC_SIZE));
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
329 temp_desc1->len=0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
330 temp_desc1->next = (ULONG)NULL;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
331
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
332 temp_desc2->next=(ULONG)temp_desc1;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
333 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
334 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
335
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
336 temp_desc2=packet;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
337 packet=(T_desc2*)packet->next;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
338 MFREE(temp_desc2);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
339 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
340 ptr_frame->list_len +=temp_desc1->len;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
341 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
342
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
343 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
344 * finish FCS calculation
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
345 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
346 calc_fcs ^= 0xffff;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
347
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
348
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
349 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
350 * create a new descriptor for FCS and HDLC-Flag
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
351 * put the descriptor at the end of the descriptor list
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
352 *
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
353 * FCS must be escaped too, allocate two bytes more - just in case
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
354 * 2 for FCS, 2 for PPP_HDLC_ESCAPE, 1 for PPP_HDLC_FLAG
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
355 *
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
356 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
357 if(temp_desc1->len + 5 >= FTX_GET_DESC_SIZE)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
358 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
359 MALLOC (temp_desc2, (USHORT)(sizeof(T_desc2) - 1 + 5));
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
360 temp_desc2->len = 0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
361 temp_desc2->size = 0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
362 temp_desc2->offset = 0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
363 temp_desc2->next = (ULONG)NULL;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
364
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
365 temp_desc1->next = (ULONG)temp_desc2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
366 temp_desc1 = temp_desc2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
367 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
368
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
369 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
370 * insert the FCS, escape when necessary
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
371 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
372 #ifdef _SIMULATION_
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
373 temp_desc1->buffer[temp_desc1->len]=(UBYTE)(PPP_GOODFCS >> 8);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
374 temp_desc1->buffer[temp_desc1->len+1]=(UBYTE)(PPP_GOODFCS & 0x00ff);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
375 temp_desc1->len += 2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
376 ptr_frame->list_len += 2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
377 #else /* _SIMULATION_ */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
378 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
379 * least significant octet first
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
380 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
381 if(ptype EQ DTI_PID_LCP)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
382 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
383 currentByte = (UBYTE)(calc_fcs & 0x00ff);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
384 if((currentByte < 0x20) || ppp_data->ftx.accmtab[currentByte])
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
385 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
386 temp_desc1->buffer[temp_desc1->len] = PPP_HDLC_ESCAPE;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
387 temp_desc1->buffer[temp_desc1->len+1] = currentByte ^ 0x20;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
388 temp_desc1->len += 2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
389 ptr_frame->list_len += 2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
390 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
391 else
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
392 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
393 temp_desc1->buffer[temp_desc1->len] = currentByte;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
394 temp_desc1->len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
395 ptr_frame->list_len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
396 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
397
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
398 currentByte = (UBYTE)(calc_fcs >> 8);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
399 if((currentByte < 0x20) || ppp_data->ftx.accmtab[currentByte])
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
400 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
401 temp_desc1->buffer[temp_desc1->len] = PPP_HDLC_ESCAPE;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
402 temp_desc1->buffer[temp_desc1->len+1] = currentByte ^ 0x20;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
403 temp_desc1->len += 2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
404 ptr_frame->list_len += 2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
405 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
406 else
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
407 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
408 temp_desc1->buffer[temp_desc1->len] = currentByte;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
409 temp_desc1->len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
410 ptr_frame->list_len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
411 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
412 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
413 else
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
414 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
415 currentByte = (UBYTE)(calc_fcs & 0x00ff);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
416 if(ppp_data->ftx.accmtab[currentByte])
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
417 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
418 temp_desc1->buffer[temp_desc1->len] = PPP_HDLC_ESCAPE;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
419 temp_desc1->buffer[temp_desc1->len+1] = currentByte ^ 0x20;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
420 temp_desc1->len += 2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
421 ptr_frame->list_len += 2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
422 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
423 else
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
424 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
425 temp_desc1->buffer[temp_desc1->len] = currentByte;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
426 temp_desc1->len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
427 ptr_frame->list_len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
428 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
429
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
430 currentByte = (UBYTE)(calc_fcs >> 8);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
431 if(ppp_data->ftx.accmtab[currentByte])
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
432 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
433 temp_desc1->buffer[temp_desc1->len] = PPP_HDLC_ESCAPE;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
434 temp_desc1->buffer[temp_desc1->len+1] = currentByte ^ 0x20;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
435 temp_desc1->len += 2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
436 ptr_frame->list_len += 2;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
437 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
438 else
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
439 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
440 temp_desc1->buffer[temp_desc1->len] = currentByte;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
441 temp_desc1->len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
442 ptr_frame->list_len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
443 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
444 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
445
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
446 #endif /* _SIMULATION_ */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
447
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
448 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
449 * insert HDLC-Flag - to mark the start of the frame
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
450 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
451 temp_desc1->buffer[temp_desc1->len] = PPP_HDLC_FLAG;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
452 temp_desc1->len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
453 temp_desc1->size = temp_desc1->len;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
454 ptr_frame->list_len++;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
455
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
456
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
457 } /* ftx_get_frame() */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
458 #endif /* PPP_FLASH_ROM */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
459
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
460
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
461
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
462 #ifndef PPP_INT_RAM
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
463 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
464 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
465 | Function : ftx_check_frame
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
466 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
467 | Description : The function ftx_check_frame() checks for flag at begin and end
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
468 | of the frame and calculates length of frame.
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
469 |
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
470 | Parameters : ptr_frame - gives just a frame and returns a frame with length
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
471 |
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
472 +------------------------------------------------------------------------------
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
473 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
474 GLOBAL void ftx_check_frame (T_desc_list2* ptr_frame)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
475 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
476 T_desc2* frame;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
477 T_desc2* temp_desc;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
478 UBYTE last_byte;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
479
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
480 TRACE_FUNCTION( "ftx_check_frame" );
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
481
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
482 frame = (T_desc2*)ptr_frame->first;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
483
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
484 while((frame) && (frame->len EQ 0))
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
485 frame = (T_desc2*)frame->next;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
486
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
487 if(frame)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
488 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
489 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
490 * if the first character isnt the HDLC flag then
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
491 * create a new first data descriptor containing just the HDLC flag
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
492 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
493 if(frame->buffer[0] NEQ PPP_HDLC_FLAG)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
494 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
495 MALLOC (frame, (USHORT)(sizeof(T_desc2) - 1 + 1));
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
496 frame->next = ptr_frame->first;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
497 frame->len = 1;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
498 frame->buffer[0] = PPP_HDLC_FLAG;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
499 ptr_frame->first = (ULONG)frame;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
500 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
501 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
502 * search for the last character and if it isnt the HDLC flag then
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
503 * create a new last data descriptor containing just the HDLC flag.
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
504 * calculate length of whole data.
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
505 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
506 ptr_frame->list_len = 0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
507 for(frame = (T_desc2*)ptr_frame->first;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
508 frame;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
509 frame = (T_desc2*)frame->next)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
510 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
511 if(frame->len)
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
512 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
513 ptr_frame->list_len+= frame->len;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
514 last_byte = frame->buffer[frame->len - 1];
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
515 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
516 temp_desc = frame;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
517 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
518 if(last_byte NEQ PPP_HDLC_FLAG) /*lint !e644 last_byte may not have been initialized */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
519 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
520 MALLOC (frame, (USHORT)(sizeof(T_desc2) - 1 + 1));
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
521 frame->next = (ULONG)NULL;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
522 frame->len = 1;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
523 frame->buffer[0] = PPP_HDLC_FLAG;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
524 temp_desc->next = (ULONG)frame; /*lint !e771 temp_desc conceivably not initialized */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
525 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
526 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
527 else
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
528 {
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
529 /*
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
530 * free the empty frame
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
531 */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
532 arb_discard_packet((T_desc2*)ptr_frame->first);
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
533 ptr_frame->first = (ULONG)NULL;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
534 ptr_frame->list_len = 0;
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
535 }
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
536 } /* ftx_check_frame() */
90eb61ecd093 src/g23m-fad: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
537 #endif /* PPP_INT_RAM */