FreeCalypso > hg > fc-selenite
annotate src/cs/services/tty/tty.c @ 85:4ef6808ea50e
components/main_ir: created for assembly modules
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 20 Jul 2018 20:22:38 +0000 |
parents | b6a5e36de839 |
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rev | line source |
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1 /****************************************************************************/ |
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2 /* */ |
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3 /* File Name: tty.c */ |
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4 /* */ |
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5 /* Purpose: This file contains all the functions used to manage the */ |
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6 /* TTY feature. */ |
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7 /* */ |
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8 /* Version 0.1 */ |
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9 /* */ |
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10 /* Date Modification */ |
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11 /* ------------------------------------ */ |
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12 /* 18 Jan 2003 Create */ |
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13 /* */ |
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14 /* Author */ |
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15 /* Frederic Turgis */ |
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16 /* */ |
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17 /* (C) Copyright 2003 by Texas Instruments Incorporated, All Rights Reserved*/ |
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18 /****************************************************************************/ |
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19 |
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20 #ifndef _WINDOWS |
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21 #include "config/l1sw.cfg" |
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22 #endif |
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23 |
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24 #if (L1_GTT == 1) |
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25 |
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26 #include "tty/tty_api.h" |
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27 #include "tty/tty_i.h" |
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28 |
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29 #include "rv/rv_general.h" |
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30 #include "rvf/rvf_target.h" |
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31 |
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32 #include "l1gtt_signa.h" |
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33 #include "audio/audio_structs_i.h" |
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34 #include "audio/audio_const_i.h" |
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35 |
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36 /* extern variables & prototypes */ |
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37 |
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38 extern T_TTY_ENV_CTRL_BLK *tty_env_ctrl_blk_p; |
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39 extern T_AUDIO_ENV_CTRL_BLK *p_audio_gbl_var; |
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40 |
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41 extern void *audio_allocate_l1_message (UINT16 size); |
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42 extern T_RV_RET audio_send_l1_message (INT16 message_id, void *message); |
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43 |
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44 /********************************************************************************/ |
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45 /* */ |
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46 /* Function Name: tty_send_status */ |
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47 /* */ |
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48 /* Purpose: This function sends the TTY status to the entity. */ |
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49 /* */ |
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50 /* Input Parameters: */ |
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51 /* status, */ |
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52 /* return path */ |
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53 /* */ |
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54 /* Output Parameters: */ |
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55 /* None. */ |
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56 /* */ |
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57 /* Note: */ |
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58 /* None. */ |
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59 /* */ |
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60 /* Revision History: */ |
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61 /* None. */ |
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62 /* */ |
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63 /********************************************************************************/ |
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64 void tty_send_status (T_AUDIO_RET status, T_RV_RETURN return_path) |
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65 { |
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66 T_AUDIO_TTY_STATUS *p_send_message = NULL; |
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67 T_RVF_MB_STATUS mb_status = RVF_RED; |
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68 |
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69 while (mb_status == RVF_RED) |
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70 { |
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71 /* allocate the message buffer */ |
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72 mb_status = rvf_get_buf (p_audio_gbl_var->mb_external, |
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73 sizeof (T_AUDIO_TTY_STATUS), |
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74 (T_RVF_BUFFER **) (&p_send_message)); |
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75 |
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76 /* If insufficient resources, then report a memory error and abort. */ |
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77 /* and wait until more ressource is given */ |
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78 if (mb_status == RVF_RED) |
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79 { |
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80 TTY_SEND_TRACE("TTY: Not Enough Memory (Red!) ",RV_TRACE_LEVEL_ERROR); |
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81 rvf_delay(RVF_MS_TO_TICKS(1000)); |
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82 } |
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83 } |
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84 /* fill the header of the message */ |
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85 ((T_AUDIO_TTY_STATUS *)p_send_message)->os_hdr.msg_id = AUDIO_TTY_STATUS_MSG; |
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86 |
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87 /* fill the status parameters */ |
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88 ((T_AUDIO_TTY_STATUS *)p_send_message)->status = status; |
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89 |
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90 if (return_path.callback_func == NULL) |
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91 { |
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92 /* send the message to the entity */ |
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93 rvf_send_msg (return_path.addr_id, p_send_message); |
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94 } |
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95 else |
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96 { |
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97 /* call the callback function */ |
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98 (*return_path.callback_func)((void *)(p_send_message)); |
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99 rvf_free_buf((T_RVF_BUFFER *)p_send_message); |
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100 } |
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101 } |
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102 |
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103 /********************************************************************************/ |
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104 /* */ |
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105 /* Function Name: tty_manager */ |
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106 /* */ |
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107 /* Purpose: This function is called to manage TTY */ |
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108 /* */ |
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109 /* Input Parameters: */ |
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110 /* message */ |
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111 /* */ |
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112 /* Output Parameters: */ |
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113 /* None. */ |
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114 /* */ |
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115 /* Note: */ |
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116 /* None. */ |
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117 /* */ |
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118 /* Revision History: */ |
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119 /* None. */ |
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120 /* */ |
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121 /********************************************************************************/ |
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122 void tty_manager (T_RV_HDR *p_message) |
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123 { |
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124 /* Declare local variables. */ |
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125 void *p_send_message; |
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126 |
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127 /**************** tty_manager function begins *********************/ |
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128 switch(tty_env_ctrl_blk_p->state) |
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129 { |
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130 case TTY_IDLE: |
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131 { |
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132 switch(p_message->msg_id) |
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133 { |
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134 case TTY_START_REQ: |
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135 { |
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136 /* save the return path */ |
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137 tty_env_ctrl_blk_p->return_path.callback_func = ((T_TTY_START *)p_message)->return_path.callback_func; |
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138 tty_env_ctrl_blk_p->return_path.addr_id = ((T_TTY_START *)p_message)->return_path.addr_id; |
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139 |
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140 /* allocate the buffer for the message to the L1 */ |
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141 p_send_message = audio_allocate_l1_message(0); |
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142 if (p_send_message != NULL) |
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143 { |
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144 /* send the start command to the audio L1 */ |
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145 audio_send_l1_message(MMI_GTT_START_REQ, p_send_message); |
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146 } |
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147 |
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148 /* change state */ |
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149 tty_env_ctrl_blk_p->state = TTY_WAIT_START_CON; |
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150 } |
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151 break; |
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152 case TTY_STOP_REQ: |
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153 { |
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154 TTY_SEND_TRACE("TTY: STOP ERROR EVENT ",RV_TRACE_LEVEL_ERROR); |
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155 } |
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156 break; |
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157 } |
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158 } /* case TTY_IDLE */ |
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159 break; |
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160 |
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161 case TTY_WAIT_START_CON: |
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162 { |
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163 switch(p_message->msg_id) |
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164 { |
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165 case MMI_GTT_START_CON: |
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166 { |
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167 /* change state */ |
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168 tty_env_ctrl_blk_p->state = TTY_WAIT_STOP_COMMAND; |
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169 } |
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170 break; |
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171 case TTY_STOP_REQ: |
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172 { |
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173 /* change state */ |
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174 tty_env_ctrl_blk_p->state = TTY_WAIT_START_CON_TO_STOP; |
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175 } |
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176 break; |
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177 } |
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178 } /* case TTY_WAIT_START_CON */ |
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179 break; |
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180 |
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181 case TTY_WAIT_START_CON_TO_STOP: |
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182 { |
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183 switch(p_message->msg_id) |
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184 { |
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185 case MMI_GTT_START_CON: |
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186 { |
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187 /* send the stop command to the audio L1 */ |
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188 p_send_message = audio_allocate_l1_message(0); |
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189 if (p_send_message != NULL) |
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190 { |
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191 audio_send_l1_message(MMI_GTT_STOP_REQ, p_send_message); |
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192 } |
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193 |
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194 /* change state */ |
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195 tty_env_ctrl_blk_p->state = TTY_WAIT_STOP_CON; |
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196 } |
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197 break; |
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198 case TTY_STOP_REQ: |
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199 { |
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200 TTY_SEND_TRACE("TTY: STOP ERROR EVENT ",RV_TRACE_LEVEL_ERROR); |
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201 } |
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202 break; |
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203 } |
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204 } |
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205 break; |
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206 |
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207 case TTY_WAIT_STOP_COMMAND: |
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208 { |
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209 switch(p_message->msg_id) |
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210 { |
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211 case TTY_STOP_REQ: |
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212 { |
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213 /* send the stop command to the audio L1 */ |
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214 p_send_message = audio_allocate_l1_message(0); |
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215 if (p_send_message != NULL) |
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216 { |
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217 audio_send_l1_message(MMI_GTT_STOP_REQ, p_send_message); |
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218 } |
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219 |
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220 /* change state */ |
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221 tty_env_ctrl_blk_p->state = TTY_WAIT_STOP_CON; |
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222 } |
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223 break; |
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224 case MMI_GTT_STOP_CON: |
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225 { |
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226 tty_send_status (AUDIO_OK, tty_env_ctrl_blk_p->return_path); |
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227 |
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228 /* change state */ |
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229 tty_env_ctrl_blk_p->state = TTY_IDLE; |
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230 } |
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231 break; |
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232 } |
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233 } /* case TTY_WAIT_STOP_COMMAND */ |
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234 break; |
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235 |
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236 case TTY_WAIT_STOP_CON: |
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237 { |
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238 switch(p_message->msg_id) |
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239 { |
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240 case MMI_GTT_STOP_CON: |
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241 { |
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242 tty_send_status (AUDIO_OK, tty_env_ctrl_blk_p->return_path); |
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243 |
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244 /* change state */ |
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245 tty_env_ctrl_blk_p->state = TTY_IDLE; |
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246 } |
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247 break; |
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248 case TTY_STOP_REQ: |
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249 { |
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250 TTY_SEND_TRACE("TTY: STOP ERROR EVENT ",RV_TRACE_LEVEL_ERROR); |
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251 } |
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252 break; |
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253 } |
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254 } /* case TTY_WAIT_STOP_CON */ |
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255 break; |
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256 |
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257 } /* switch(tty_env_ctrl_blk_p->state) */ |
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258 } |
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259 #endif /* L1_GTT */ |