FreeCalypso > hg > fc-magnetite
annotate src/g23m-aci/bat/bat_l2p.c @ 336:be011556e71f
FCHG: API implementation started
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 14 Dec 2017 21:01:59 +0000 |
parents | 53929b40109c |
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rev | line source |
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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 |
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18 | for the L2P interface |
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19 +----------------------------------------------------------------------------- |
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20 */ |
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21 |
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22 #define _BAT_L2P_C_ |
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23 |
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24 /*==== INCLUDES =============================================================*/ |
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25 #include "typedefs.h" |
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26 #include "gdd.h" |
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27 #include "gdd_sys.h" /* to get semaphore access */ |
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28 #include "l2p_types.h" |
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29 #include "l2p.h" |
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30 #include "bat.h" |
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31 #include "bat_ctrl.h" |
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32 #include "bat_intern.h" |
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33 |
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34 /*==== DEFINES ===========================================================*/ |
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35 #define ENTER_CRITICAL_SECTION(sem) if (bat_enter_critical_section(sem))return (NULL); |
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36 #define LEAVE_CRITICAL_SECTION(sem) if (bat_leave_critical_section(sem))return -1; |
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37 |
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38 /*==== LOCAL VARS ===========================================================*/ |
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39 |
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40 |
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41 /*==== LOCAL FUNCTIONS =====================================================*/ |
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42 |
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43 LOCAL void bat_semaphore_err (void) |
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44 { |
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45 static U8 out = 0; |
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46 if (!out) |
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47 { |
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48 out = 1; |
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49 BAT_TRACE_ERROR("semaphore error"); |
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50 } |
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51 } |
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52 |
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53 |
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54 LOCAL int bat_enter_critical_section (T_HANDLE sem) |
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55 { |
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56 if (gdd_sys_sem_down (sem) NEQ VSI_OK) |
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57 { |
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58 bat_semaphore_err(); |
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59 return -1; |
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60 } |
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61 else |
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62 { |
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63 return 0; |
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64 } |
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65 } |
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66 |
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67 |
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68 LOCAL int bat_leave_critical_section (T_HANDLE sem) |
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69 { |
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70 if (gdd_sys_sem_up(sem) NEQ VSI_OK) |
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71 { |
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72 bat_semaphore_err(); |
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73 return -1; |
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74 } |
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75 else |
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76 { |
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77 return 0; |
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78 } |
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79 } |
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80 |
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81 /* |
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82 * we have to maintain some stuff for L2P_Receive(). |
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83 */ |
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84 LOCAL void bat_update_l2p_mt (T_BAT_instance_maintain *inst_mt, T_GDD_SEGMENT *desc, U16 length, BOOL substract) |
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85 { |
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86 BAT_TRACE_EVENT_P1("bat_update_l2p_mt(): segment len is %d", length); |
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87 inst_mt->l2p_mt.desc = desc; |
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88 if (substract) |
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89 { |
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90 inst_mt->l2p_mt.length = inst_mt->l2p_mt.length - length; |
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91 } |
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92 else |
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93 { |
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94 inst_mt->l2p_mt.length = length; |
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95 } |
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96 } |
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97 |
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98 |
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99 LOCAL T_GDD_SEGMENT *bat_get_from_l2p_mt_desc (T_BAT_instance_maintain *inst_mt) |
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100 { |
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101 return (inst_mt->l2p_mt.desc); |
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102 } |
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103 |
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104 LOCAL U16 bat_get_from_l2p_mt_length (T_BAT_instance_maintain *inst_mt) |
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105 { |
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106 return (inst_mt->l2p_mt.length); |
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107 } |
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108 |
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109 |
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110 |
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111 /* |
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112 +----------------------------------------------------------------------------+ |
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113 | PROJECT : MODULE : BINARY AT COMMAND LIBRARY | |
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114 | STATE : code ROUTINE : bat_l2p_receive | |
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115 +----------------------------------------------------------------------------+ |
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116 PURPOSE : |
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117 This function is a wrapper around L2P_Receive to have all L2P related stuff |
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118 in one module. |
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119 */ |
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120 |
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121 BOOL bat_l2p_receive (U8 inst_hndl, T_GDD_BUF *buf) |
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122 { |
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123 T_BAT_instance_maintain *inst_mt = NULL; |
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124 T_GDD_SEGMENT *seg = NULL; |
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125 U16 length = 0; |
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126 T_L2P_STATUS l2p_status; |
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127 |
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128 if (bat_get_instance_from_instance_handle(inst_hndl, &inst_mt)) |
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129 { |
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130 BAT_TRACE_ERROR ("bat_l2p_receive(): inst_hndl is not correct!"); |
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131 return (FALSE); |
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132 } |
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133 |
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134 inst_mt->buffer.gdd_buf_rcv = buf; |
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135 BAT_TRACE_EVENT_P2 ("bat_l2p_receive(): data length: %d, has c_segment %d", buf->length, buf->c_segment); |
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136 |
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137 seg = buf->ptr_gdd_segment; |
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138 ++seg; /* Skip first segment which is the protocol ID and not needed */ |
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139 |
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140 length = buf->length; |
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141 |
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142 bat_update_l2p_mt (inst_mt, seg, length, FALSE); |
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143 |
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144 /* |
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145 * for the case that the BAT Module at ACI was not able to send BAT responses/indications, |
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146 * it builds up a linked list of responses/indications, |
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147 * which then is sent at once when BAT Module was able again. |
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148 * That is why we have here to iterate over the GDD list. |
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149 */ |
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150 do |
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151 { |
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152 /* |
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153 * within L2P_Receive() is called bat_l2p_get_next_buf_seg() if neccessary (fragmentation) |
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154 * and finally it is called bat_l2p_message_rxd(). |
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155 * Within bat_l2p_message_rxd() is called the application's callback. |
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156 */ |
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157 BAT_TRACE_EVENT("bat_l2p_receive() loop..."); |
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158 l2p_status = L2P_Receive(inst_hndl, seg->ptr_data, seg+1, length, seg->c_data); |
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159 switch (l2p_status) |
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160 { |
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161 case (L2P_STAT_SUCCESS): |
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162 { |
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163 /* for the next iteration get the updated parameter for L2P_Receive() */ |
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164 seg = bat_get_from_l2p_mt_desc(inst_mt); |
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165 length = bat_get_from_l2p_mt_length(inst_mt); |
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166 break; |
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167 } |
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168 default: /* any error */ |
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169 { |
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170 BAT_TRACE_EVENT_P1("bat_l2p_receive(): L2P status = %d", l2p_status); |
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171 return (FALSE); |
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172 } |
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173 } |
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174 } while(seg); |
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175 |
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176 return (TRUE); |
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177 } |
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178 |
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179 |
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180 /*==== functions exported to L2P ============================================*/ |
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181 |
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182 /* |
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183 * This function is called by L2P_Send() and L2P_Receive() |
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184 */ |
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185 void *bat_l2p_get_next_buf_seg (U8 inst_hndl, void *seg_hdr, void **seg_hdr_ptr, U16 *segSize) |
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186 { |
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187 T_BAT_instance_maintain *inst_mt = NULL; |
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188 T_GDD_SEGMENT *gdd_seg = (T_GDD_SEGMENT *)seg_hdr; |
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189 T_GDD_SEGMENT *seg = NULL; |
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190 |
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191 if (seg_hdr EQ NULL) |
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192 { |
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193 BAT_TRACE_EVENT ("bat_l2p_get_next_buf_seg(): GDD buffer is complete"); |
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194 return (NULL); |
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195 } |
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196 |
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197 if (bat_get_instance_from_instance_handle(inst_hndl, &inst_mt)) |
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198 { |
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199 BAT_TRACE_ERROR ("bat_l2p_get_next_buf_seg(): inst_hndl is not correct!"); |
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200 return (NULL); |
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201 } |
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202 |
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203 /* check whether we are in RX context (it is called for TX as well) */ |
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204 seg = bat_get_from_l2p_mt_desc(inst_mt); |
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205 |
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206 if (seg AND ((seg+1) EQ gdd_seg)) |
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207 { |
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208 bat_update_l2p_mt(inst_mt, gdd_seg+1, gdd_seg->c_data, TRUE); |
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209 } |
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210 |
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211 return (void*)(gdd_seg->ptr_data); |
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212 } |
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213 |
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214 |
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215 void *bat_l2p_get_tx_buffer(T_BAT_instance inst_hndl, U16 data_size, |
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216 void **seg_hdr_ptr, U16 *total_size, U16 *seg_size) |
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217 { |
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218 T_BAT_instance_maintain *inst_mt = NULL; |
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219 T_GDD_BUF *buf = NULL; |
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220 T_GDD_SEGMENT * seg = NULL; |
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221 |
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222 BAT_TRACE_FUNCTION ("bat_l2p_get_tx_buffer()"); |
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223 |
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224 if (bat_get_instance_from_instance_handle(inst_hndl, &inst_mt)) |
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225 { |
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226 BAT_TRACE_ERROR ("bat_l2p_get_tx_buffer(): inst_hndl is not correct!"); |
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227 return (NULL); |
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228 } |
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229 |
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230 if (data_size >= (int)(inst_mt->config->adapter.cap.dio_cap.mtu_size)) |
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231 { |
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232 BAT_TRACE_ERROR ("bat_l2p_get_tx_buffer(): requested buffer too big!"); |
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233 return (NULL); |
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234 } |
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235 |
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236 /* |
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237 * according to GR we have to make |
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238 * gdd_get_send_buffer() and gdd_send_data() "atomic", |
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239 * which means we release the semaphore in bat_l2p_send_frame() |
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240 */ |
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241 ENTER_CRITICAL_SECTION(inst_mt->sem_BAT); |
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242 |
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243 if (inst_mt->config->adapter.gdd_if.gdd_get_send_buffer |
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244 ((T_GDD_CON_HANDLE)(inst_mt->con_handle), &buf, data_size) NEQ GDD_OK) |
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245 { |
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246 BAT_TRACE_ERROR ("bat_l2p_get_tx_buffer(): call to get gdd buffer failed!"); |
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247 return (NULL); |
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248 } |
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249 /* To memorize the buffer address for later sending */ |
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250 inst_mt->buffer.gdd_buf = buf; |
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251 /* the first 2 bytes are not used */ |
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252 *total_size = (U16)(buf->length - 2); |
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253 /*store the pointer pointing to the next seg, ignore the first ptr bec it is for other purpose*/ |
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254 |
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255 seg = buf->ptr_gdd_segment; |
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256 ++seg; /* Skip first segment which is the protocol ID and not needed */ |
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257 *seg_hdr_ptr = (void*)(seg+1); |
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258 *seg_size = seg->c_data; |
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259 |
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260 return (void*)(seg->ptr_data); |
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261 } |
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262 |
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263 |
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264 int bat_l2p_send_frame(T_BAT_instance inst_hndl) |
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265 { |
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266 T_BAT_instance_maintain *inst_mt = NULL; |
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267 |
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268 BAT_TRACE_FUNCTION ("bat_l2p_send_frame()"); |
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269 |
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270 |
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271 if (bat_get_instance_from_instance_handle(inst_hndl, &inst_mt)) |
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272 { |
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273 BAT_TRACE_ERROR ("bat_l2p_send_frame(): inst_hndl is not correct!"); |
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274 return (0); |
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275 } |
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276 |
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277 if (inst_mt->config->adapter.gdd_if.gdd_send_data |
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278 ((T_GDD_CON_HANDLE)(inst_mt->con_handle), inst_mt->buffer.gdd_buf) NEQ GDD_OK) |
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279 { |
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280 BAT_TRACE_ERROR ("bat_l2p_send_frame(): call to send gdd buffer failed!"); |
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281 LEAVE_CRITICAL_SECTION(inst_mt->sem_BAT); |
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282 return (-1); |
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283 } |
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284 |
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285 LEAVE_CRITICAL_SECTION(inst_mt->sem_BAT); |
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286 /*return OK*/ |
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287 return (0); |
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288 } |
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289 |
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290 |
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291 void *bat_l2p_get_rx_buffer(U8 inst_hndl) |
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292 { |
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293 T_BAT_instance_maintain *inst_mt = NULL; |
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294 |
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295 BAT_TRACE_FUNCTION ("bat_l2p_get_rx_buffer()"); |
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296 |
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297 if (bat_get_instance_from_instance_handle(inst_hndl, &inst_mt)) |
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298 { |
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299 BAT_TRACE_ERROR ("bat_l2p_get_rx_buffer(): inst_hndl is not correct!"); |
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300 return (NULL); |
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301 } |
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302 /* set the state of the buffer */ |
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303 bat_change_buffer_state(inst_mt, BAT_BUF_FILLING); |
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304 |
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305 return (inst_mt->buffer.data); |
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306 } |
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307 |
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308 |
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309 void bat_l2p_message_rxd (U8 inst_hndl, U8 client_id, U32 data_tag, void *data_ptr, U16 data_size) |
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310 { |
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311 T_BAT_instance_maintain *inst_mt = NULL; |
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312 T_BATC_confirm cnf; |
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313 T_BAT_return ret = BAT_ERROR; |
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314 T_GDD_SEGMENT * seg = NULL; |
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315 |
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316 data_size = data_size; /* prevent compiler warnings */ |
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317 |
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318 BAT_TRACE_FUNCTION ("bat_l2p_message_rxd()"); |
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319 |
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320 if (bat_get_instance_from_instance_handle(inst_hndl, &inst_mt)) |
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321 { |
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322 BAT_TRACE_ERROR ("bat_l2p_message_rxd(): inst_hndl is not correct!"); |
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323 return; |
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324 } |
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325 |
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326 bat_change_buffer_state(inst_mt, BAT_BUF_FILLED); |
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327 |
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328 switch (client_id) |
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329 { |
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330 case (BAT_CONTROL_CHANNEL): |
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331 { |
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332 cnf.rsp.ptr_bat_open_client_cnf = data_ptr; |
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333 cnf.rsp_params = (T_BATC_rsp_param)data_tag; |
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334 ret = bat_control_confirm_rcv (inst_hndl, cnf); |
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335 break; |
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336 } |
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337 case (BAT_BROADCAST_CHANNEL): |
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338 { |
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339 inst_mt->buffer.rsp.ctrl_response = (T_BAT_ctrl_response)data_tag; |
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340 inst_mt->buffer.rsp.response.ptr_at_ok = data_ptr; |
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341 ret = bat_unsolicited_code_rcv (inst_hndl, &(inst_mt->buffer.rsp)); |
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342 break; |
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343 } |
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344 default: |
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345 { |
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346 inst_mt->buffer.rsp.ctrl_response = (T_BAT_ctrl_response)data_tag; |
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347 inst_mt->buffer.rsp.response.ptr_at_ok = data_ptr; |
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348 ret = bat_command_response_rcv (inst_hndl, client_id, &(inst_mt->buffer.rsp)); |
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349 break; |
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350 } |
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351 } |
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352 switch (ret) |
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353 { |
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354 case (BAT_OK): |
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355 case (BAT_BUSY_RESOURCE): |
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356 { |
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357 break; |
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358 } |
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359 case (BAT_ERROR): |
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360 { |
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361 BAT_TRACE_ERROR ("bat_l2p_message_rxd(): received data have not been processed!"); |
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362 break; |
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363 } |
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364 } |
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365 |
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366 seg = bat_get_from_l2p_mt_desc(inst_mt); |
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367 |
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368 if (seg) |
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369 { |
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370 /* Get next segment */ |
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371 int cur_idx = seg - inst_mt->buffer.gdd_buf_rcv->ptr_gdd_segment; |
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372 T_GDD_SEGMENT * next_seg; |
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373 |
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374 BAT_TRACE_EVENT_P1("buffer starts at 0x%08x", inst_mt->buffer.gdd_buf_rcv->ptr_gdd_segment); |
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375 BAT_TRACE_EVENT_P1("seg is 0x%08x", seg); |
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|
376 |
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377 BAT_TRACE_EVENT_P1("cur_idx is %d", cur_idx); |
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|
378 |
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379 if(cur_idx >= inst_mt->buffer.gdd_buf_rcv->c_segment-1) |
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380 next_seg = 0; |
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381 else |
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382 next_seg = ++seg; |
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|
383 |
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|
384 if (next_seg EQ NULL) |
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diff
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|
385 { |
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|
386 bat_update_l2p_mt(inst_mt, NULL, 0, FALSE); |
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parents:
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|
387 } |
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|
388 else |
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parents:
diff
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|
389 { |
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|
390 /* |
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391 * update to the next GDD descriptor, which has a L2P header |
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392 * and reduce the overall L2P data length by the currently processed data length |
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|
393 */ |
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394 bat_update_l2p_mt(inst_mt, next_seg, seg->c_data, TRUE); |
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parents:
diff
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|
395 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
396 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
397 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
398 |