FreeCalypso > hg > fc-tourmaline
annotate src/g23m-gprs/sndcp/sndcp_suf.c @ 303:f76436d19a7a default tip
!GPRS config: fix long-standing AT+COPS chance hanging bug
There has been a long-standing bug in FreeCalypso going back years:
sometimes in the AT command bring-up sequence of an ACI-only MS,
the AT+COPS command would produce only a power scan followed by
cessation of protocol stack activity (only L1 ADC traces), instead
of the expected network search sequence. This behaviour was seen
in different FC firmware versions going back to Citrine, and seemed
to follow some law of chance, not reliably repeatable.
This bug has been tracked down and found to be specific to !GPRS
configuration, stemming from our TCS2/TCS3 hybrid and reconstruction
of !GPRS support that was bitrotten in TCS3.2/LoCosto version.
ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3
version and had to be pulled from TCS2 - but as it turns out,
there is a new field in the MMR_REG_REQ primitive that needs to be
set correctly, and that psa_mms.c module is the place where this
initialization needed to be added.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 08 Jun 2023 08:23:37 +0000 |
parents | fa8dc04885d8 |
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rev | line source |
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1
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1 /* |
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2 +----------------------------------------------------------------------------- |
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3 | Project : GPRS (8441) |
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4 | Modul : sndcp_suf.c |
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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 SNDCP and implements all |
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18 | procedures and functions as described in the |
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19 | SDL-documentation (SU-statemachine) |
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20 +----------------------------------------------------------------------------- |
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21 */ |
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22 |
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23 /*---- HISTORY --------------------------------------------------------------*/ |
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24 |
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25 #define ENTITY_SNDCP |
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26 |
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27 /*==== INCLUDES =============================================================*/ |
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28 |
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29 #include "typedefs.h" /* to get Condat data types */ |
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30 #include "vsi.h" /* to get a lot of macros */ |
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31 #include "macdef.h" |
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32 #include "prim.h" /* to get the definitions of used SAP and directions */ |
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33 |
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34 #include "dti.h" |
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35 |
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36 #include "sndcp.h" /* to get the global entity definitions */ |
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37 #include "sndcp_f.h" /* to get the functions to access the global arrays*/ |
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38 |
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39 #include "sndcp_nus.h" /* to get signals to service nu */ |
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40 #include "sndcp_cias.h" /* to get signals to service cia */ |
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41 |
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42 /*==== CONST ================================================================*/ |
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43 |
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44 /*==== LOCAL VARS ===========================================================*/ |
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45 |
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46 /*==== PRIVATE FUNCTIONS ====================================================*/ |
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47 |
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48 /*==== PUBLIC FUNCTIONS =====================================================*/ |
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49 #ifdef _SNDCP_DTI_2_ |
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50 |
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51 /* |
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52 +------------------------------------------------------------------------------ |
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53 | Function : su_get_nsapi |
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54 +------------------------------------------------------------------------------ |
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55 | Description : finde the affected nsapi in sn-PDU. |
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56 | |
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57 | Parameters : ll_unitdata_req* |
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58 | Returns : the nsapi |
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59 | |
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60 +------------------------------------------------------------------------------ |
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61 */ |
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62 GLOBAL U8 su_get_nsapi (T_LL_UNITDESC_REQ* ll_unitdesc_req) |
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63 { |
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64 T_desc3* desc3 = NULL; |
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65 U8 * sndcp_header = NULL; |
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66 |
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67 /* Get the descriptor describing the memory area with the sndcp header */ |
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68 |
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69 desc3 = (T_desc3*)ll_unitdesc_req->desc_list3.first; |
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70 sndcp_header = (U8*)desc3->buffer; |
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71 |
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72 TRACE_FUNCTION( "su_get_nsapi" ); |
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73 |
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74 return (*(sndcp_header + ENCODE_OFFSET_BYTE)) & 0xf; |
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75 } /* sua_get_nsapi() */ |
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76 |
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77 #else /* _SNDCP_DTI_2_ */ |
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78 |
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79 /* |
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80 +------------------------------------------------------------------------------ |
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81 | Function : su_get_nsapi |
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82 +------------------------------------------------------------------------------ |
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83 | Description : finde the affected nsapi in sn-PDU. |
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84 | |
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85 | Parameters : ll_unitdata_req* |
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86 | Returns : the nsapi |
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87 | |
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88 +------------------------------------------------------------------------------ |
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89 */ |
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90 GLOBAL UBYTE su_get_nsapi (T_LL_UNITDATA_REQ* ll_unitdata_req) |
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91 { |
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92 USHORT octet_offset = (ll_unitdata_req->sdu.o_buf) >> 3; |
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93 |
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94 TRACE_FUNCTION( "su_get_nsapi" ); |
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95 |
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96 return ll_unitdata_req->sdu.buf[octet_offset] & 0xf; |
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97 |
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98 } /* su_get_nsapi() */ |
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99 |
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100 #endif /* _SNDCP_DTI_2_ */ |
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101 |
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102 /* |
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103 +------------------------------------------------------------------------------ |
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104 | Function : su_init |
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105 +------------------------------------------------------------------------------ |
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106 | Description : The function su_init() .... |
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107 | |
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108 | Parameters : |
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109 | |
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110 +------------------------------------------------------------------------------ |
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111 */ |
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112 GLOBAL void su_init (void) |
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113 { |
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114 TRACE_FUNCTION( "su_init" ); |
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115 |
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116 /* |
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117 * Not initialized: |
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118 * Members of sn_unitdata_q are not set to NULL. |
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119 * Members of npdu_number_q are not set to 0. |
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120 * Members of ll_unitdata_q are not set to NULL. |
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121 */ |
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122 |
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123 sndcp_data->su = & sndcp_data->su_base[0]; |
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124 INIT_STATE(SU_0, SU_LLC_NOT_RECEPTIVE); |
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125 #ifdef SNDCP_2to1 |
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126 sndcp_data->su->sapi = PS_SAPI_3; |
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127 #else |
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128 sndcp_data->su->sapi = LL_SAPI_3; |
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129 #endif /*SNDCP_2to1*/ |
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130 |
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131 sndcp_data->su = & sndcp_data->su_base[1]; |
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132 INIT_STATE(SU_1, SU_LLC_NOT_RECEPTIVE); |
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133 #ifdef SNDCP_2to1 |
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134 sndcp_data->su->sapi = PS_SAPI_5; |
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135 #else |
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136 sndcp_data->su->sapi = LL_SAPI_5; |
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137 #endif /*SNDCP_2to1*/ |
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138 |
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139 sndcp_data->su = & sndcp_data->su_base[2]; |
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140 INIT_STATE(SU_2, SU_LLC_NOT_RECEPTIVE); |
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141 #ifdef SNDCP_2to1 |
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142 sndcp_data->su->sapi = PS_SAPI_9; |
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143 #else |
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144 sndcp_data->su->sapi = LL_SAPI_9; |
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145 #endif /*SNDCP_2to1*/ |
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146 |
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147 sndcp_data->su = & sndcp_data->su_base[3]; |
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148 INIT_STATE(SU_3, SU_LLC_NOT_RECEPTIVE); |
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149 #ifdef SNDCP_2to1 |
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150 sndcp_data->su->sapi = PS_SAPI_11; |
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151 #else |
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152 sndcp_data->su->sapi = LL_SAPI_11; |
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153 #endif /*SNDCP_2to1*/ |
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154 { |
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155 UBYTE sapi_index = 0; |
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156 |
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157 for (sapi_index = 0; sapi_index < SNDCP_NUMBER_OF_SAPIS; sapi_index++) { |
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158 sndcp_data->su = & sndcp_data->su_base[sapi_index]; |
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159 sndcp_data->su->n201_u = N201_U_DEFAULT; |
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160 sndcp_data->su->sn_unitdata_q_read = 0; |
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161 sndcp_data->su->sn_unitdata_q_write = 0; |
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162 #ifdef _SNDCP_DTI_2_ |
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163 sndcp_data->su->ll_unitdesc_q_read = 0; |
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164 sndcp_data->su->ll_unitdesc_q_write = 0; |
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165 #else /* _SNDCP_DTI_2_ */ |
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166 sndcp_data->su->ll_unitdata_q_read = 0; |
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167 sndcp_data->su->ll_unitdata_q_write = 0; |
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168 #endif /* _SNDCP_DTI_2_ */ |
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169 sndcp_data->su->cia_state = CIA_IDLE; |
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170 } |
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171 } |
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172 |
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173 |
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174 |
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175 } /* su_init() */ |
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176 |
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177 |
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178 /* |
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179 +------------------------------------------------------------------------------ |
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180 | Function : su_next_sn_unitdata_req |
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181 +------------------------------------------------------------------------------ |
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182 | Description : If queue with sn_unitdata_req is |
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183 | not empty, send SIG_SU_CIA_DATA_REQ with next prim from sn_unitdata_req queue |
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184 | |
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185 | Parameters : sapi |
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186 | Pre : cia_state == CIA_IDLE |
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187 | |
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188 +------------------------------------------------------------------------------ |
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189 */ |
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190 GLOBAL void su_next_sn_unitdata_req (UBYTE sapi) |
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191 { |
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192 TRACE_FUNCTION( "su_next_sn_unitdata_req" ); |
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193 |
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194 if (sndcp_data->su->sn_unitdata_q_write != |
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195 sndcp_data->su->sn_unitdata_q_read) { |
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196 /* |
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197 * Get sn_unitdata_req from queue. |
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198 */ |
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199 T_SN_UNITDATA_REQ* sn_unitdata_req = |
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200 sndcp_data->su->sn_unitdata_q[sndcp_data->su->sn_unitdata_q_read]; |
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201 /* |
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202 * Get npdu_number from queue. |
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203 */ |
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|
204 USHORT npdu_num = |
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205 sndcp_data->su->npdu_number_q[sndcp_data->su->sn_unitdata_q_read]; |
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206 UBYTE nsapi = sn_unitdata_req->nsapi; |
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207 |
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208 sndcp_data->su->sn_unitdata_q[sndcp_data->su->sn_unitdata_q_read] = NULL; |
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209 sndcp_data->su->sn_unitdata_q_read = |
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210 (sndcp_data->su->sn_unitdata_q_read + 1 ) % SN_UNITDATA_Q_LEN; |
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211 |
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212 /* |
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213 * Cia is now busy. Send data. |
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214 */ |
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|
215 sndcp_data->su->cia_state = CIA_BUSY; |
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216 sig_su_cia_cia_comp_req(sn_unitdata_req, |
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217 npdu_num, |
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218 nsapi, |
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219 sapi); |
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220 } else if (sndcp_data->su->cia_state == CIA_IDLE) { |
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221 UBYTE nsapi = 0; |
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222 |
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|
223 for (nsapi = 0; nsapi < SNDCP_NUMBER_OF_NSAPIS; nsapi++) { |
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224 UBYTE used_sapi = 0; |
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|
225 BOOL used = FALSE; |
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226 |
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|
227 sndcp_is_nsapi_used(nsapi, &used); |
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|
228 if (used) { |
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229 sndcp_get_nsapi_sapi(nsapi, &used_sapi); |
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230 if (used_sapi == sapi) { |
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|
231 sig_su_nu_ready_ind(nsapi); |
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232 } |
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233 } |
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234 } |
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235 } |
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238 } /* su_next_sn_unitdata_req() */ |
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239 |