annotate src/g23m-aci/bat/bat_adp.c @ 189:d78986760e92

LICENSE: new terms
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 14 Apr 2020 20:26:40 +0000
parents d393cd9bb723
children
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project :
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4 | Modul : BAT
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5 +-----------------------------------------------------------------------------
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6 | Copyright 2005 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 holds the functions used by GDD
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18 | for the binary AT command library
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19 +-----------------------------------------------------------------------------
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20 */
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21
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22 #define _BAT_ADP_C_
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23
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24 #include "typedefs.h"
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25 #include "gdd.h"
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26 #include "l2p_types.h"
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27 #include "l2p.h"
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28 #include "bat.h"
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29 #include "bat_ctrl.h"
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30 #include "bat_intern.h"
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31
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32
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33 /*
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34 +----------------------------------------------------------------------------+
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35 | PROJECT : MODULE : BINARY AT COMMAND LIBRARY |
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36 | STATE : code ROUTINE : bat_gdd_receive_data_cb |
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37 +----------------------------------------------------------------------------+
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38 PURPOSE :
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39 This function is called by GDD when itself received new data from PSI.
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40 It will pass a GDD buffer (linked list), which has the following speciality:
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41 - the first list element is reserved and BAT Lib has to follow the next pointer
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42 to see the "first" user data.
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43 - such a user data element is passed by BAT Lib to L2P. L2P added at the sender
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44 side its own header, which maintains possibly fragmentation. If the received
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45 data have been fragmented by L2P at the sender side, then L2P itself iterates
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46 over the GDD linked list by calling bat_l2p_get_next_buf_seg() here at receiver side.
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47 When L2P has reassembled from several segments/list element the complete user data,
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48 then it passes this complete data to BAT Lib.
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49 - BUT THERE IS AN ADDITIONAL SCENARIO:
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50 ACI was not able to send the data to PSI/GDD. Then ACI also builds up a linked list
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51 until it is able to send to PSI/GDD.
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52 Every list element represents one response/indication, which itself could be fragmented by L2P.
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53 Assume the following scenario:
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54 The connection between ACI and PSI was not available.
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55 ACI received three indications from the protocol stack, where the second one is too large so that
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56 L2P must split it into two segments. That means that ACI has built a linked list of four
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57 elements, which represents three logical data unit. The first list element belongs to the
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58 first indication, the second and third list element belongs to the second indication
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59 and the fourth list element belongs to the third indication.
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60 */
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61
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62 GDD_RESULT bat_gdd_receive_data_cb (T_GDD_CON_HANDLE con, T_GDD_BUF *buf)
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63 {
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64 T_BAT_instance inst_hndl = BAT_BROADCAST_CHANNEL;
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65 T_BAT_instance_maintain *inst_mt = NULL;
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66
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67 BAT_TRACE_FUNCTION ("bat_gdd_receive_data_cb()");
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68 BAT_TRACE_EVENT_P2 ("data received from GDD has length: %d, has c_segment %d", buf->length, buf->c_segment);
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69
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70 /* if the info is for an unknown instance, return OK, GDD can only handle ok and busy,
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71 so in error cases, GDD_OK will be returned */
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72 if (bat_get_instance_from_gdd_handle(con, &inst_hndl, &inst_mt))
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73 {
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74 /* if instance is unknown, BAT Lib ignores the data and returns OK to GDD */
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75 BAT_TRACE_ERROR("bat_gdd_receive_data_cb(): Data from unknown instance received!");
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76 return (GDD_OK);
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77 }
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78
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79 /* if the instance is not initialized */
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80 if (inst_mt->instance_state EQ BAT_INSTANCE_IDLE)
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81 {
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82 /* if instance is not initialized, BAT Lib ignores the data and returns OK to GDD */
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83 BAT_TRACE_ERROR ("bat_gdd_receive_data_cb(): Data is received from GDD for an uninitialized instance.");
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84 return (GDD_OK);
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85 }
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86
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87 /* check if the receiver buffer is free, if not return a busy signal to GDD, BAT Lib will
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88 send a ready signal to GDD when the buffer is freed (BAT Lib will receive ctrl info from)
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89 app, see bat_ctrl() */
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90 if (inst_mt->buffer.buf_st EQ BAT_BUF_FILLED)
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91 {
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92 BAT_TRACE_EVENT ("bat_gdd_receive_data_cb(): receive buffer is not yet freed!");
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93 return (GDD_BUSY);
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94 }
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95
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96 bat_l2p_receive(inst_hndl, buf);
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97
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98 return (GDD_OK);
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99 }
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100
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101
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102 LOCAL void bat_check_clients_for_busy (T_BAT_instance_maintain *instance, T_BAT_instance inst_hndl)
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103 {
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104 T_BAT_client_maintain *clnt_mt = NULL;
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105 T_BAT_client clnt_hndl = BAT_INVALID_CLIENT_HANDLE;
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106 int i;
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107
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108 for (i = 0; i < instance->max_client_num; i++)
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109 {
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110 clnt_hndl = MAKE_CLNT_HNDL(i, inst_hndl);
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111 bat_get_client_from_client_handle(clnt_hndl, &clnt_mt);
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112 switch (clnt_mt->client_state)
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113 {
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114 case (BAT_CLIENT_BUSY):
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115 {
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116 clnt_mt->signal_cb (clnt_hndl, BAT_READY_RESOURCE);
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117 bat_change_client_state(clnt_mt, BAT_CLIENT_READY);
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118 break;
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119 }
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120 case (BAT_CLIENT_SENDING_AND_BUSY):
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121 {
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122 clnt_mt->signal_cb (clnt_hndl, BAT_READY_RESOURCE);
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123 bat_change_client_state(clnt_mt, BAT_CLIENT_SENDING);
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124 break;
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125 }
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126 default:
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127 break;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 +----------------------------------------------------------------------------+
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 | PROJECT : MODULE : BINARY AT COMMAND LIBRARY |
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 | STATE : code ROUTINE : bat_gdd_signal_cb |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 +----------------------------------------------------------------------------+
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 PURPOSE :
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 This function is called by GDD for signalling of control information between
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 BAT Lib and GDD.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 void bat_gdd_signal_cb(T_GDD_CON_HANDLE con, T_GDD_SIGNAL signal)
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 T_BAT_instance_maintain *instance = NULL;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 T_BAT_instance inst_hndl = BAT_INVALID_INSTANCE_HANDLE;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 T_BATC_signal ctrl_data;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 T_BATC_max_clients max_clnt;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 BAT_TRACE_FUNCTION ("bat_gdd_signal_cb()");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 BAT_TRACE_EVENT_P1 ("bat_gdd_signal_cb(): con_hndl searched for is %x", con);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 if (bat_get_instance_from_gdd_handle(con, &inst_hndl, &instance))
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 BAT_TRACE_ERROR ("bat_gdd_signal_cb(): gdd handle is not found, ignore signal");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 return;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 switch (signal.sig)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 case (GDD_SIGTYPE_CONNECTION_OPENED):
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 case (GDD_SIGTYPE_SEND_BUF_AVAILABLE):
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 BAT_TRACE_EVENT ("bat_gdd_signal_cb(): GDD_SIGTYPE_SEND_BUF_AVAILABLE received from GDD");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 switch (instance->instance_state)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 case (BAT_INSTANCE_IDLE):
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 /* update the instance state */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 bat_change_instance_state(instance, BAT_INSTANCE_ACTIVATING);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 /* BAT sends out the control info to ACI*/
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 ctrl_data.ctrl_params = BATC_MAX_CLIENTS;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 max_clnt.num_clients = instance->max_client_num;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 ctrl_data.params.ptr_max_clients = &max_clnt;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 if (bat_send_ctrl_data(inst_hndl, &ctrl_data) NEQ BAT_OK)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 BAT_TRACE_ERROR ("bat_gdd_signal_cb(): BAT new fails to send ctrl info, connection can not be open");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 if (instance->config->adapter.gdd_if.gdd_disconnect(con))
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 BAT_TRACE_ERROR ("bat_gdd_signal_cb(): GDD returns error when disconnecting.");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 instance->instance_signal_cb(BAT_NEW_INSTANCE_FAIL);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 bat_deinit_instance_pointer(inst_hndl);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 break;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 /* flow control for client channels, GDD state has be changed from BUSY to READY */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 case (BAT_INSTANCE_READY):
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 bat_check_clients_for_busy(instance, inst_hndl);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 break;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 /* flow control for instance, bat_open() hasn't been succesful yet */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 case (BAT_INSTANCE_BUSY):
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 instance->instance_signal_cb (BAT_READY_RESOURCE);
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 bat_change_instance_state(instance, BAT_INSTANCE_READY);
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 break;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 default:
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 return;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 break;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 case (GDD_SIGTYPE_CONNECTION_FAILED):
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 BAT_TRACE_ERROR("bat_gdd_signal_cb(): GDD_SIGTYPE_CONNECTION_OPENED_FAILED received from GDD");
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 if (instance->config->adapter.gdd_if.gdd_disconnect(con))
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 BAT_TRACE_ERROR ("bat_gdd_signal_cb(): GDD returns error when disconnecting.");
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 instance->instance_signal_cb (BAT_NEW_INSTANCE_FAIL);
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 bat_deinit_instance_pointer(inst_hndl);
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 L2P_Remove (inst_hndl);
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 break;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 /* ignore other signal types */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 default:
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 break;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 return;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231