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1 /**
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2 * @file mks_functions.c
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3 *
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4 * Implementation of MKS functions.
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5 *
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6 * @author Laurent Sollier (l-sollier@ti.com)
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7 * @version 0.1
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8 */
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9
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10 /*
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11 * History:
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12 *
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13 * Date Author Modification
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14 * ----------------------------------------
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15 * 11/16/2001 L Sollier Create
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16 *
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17 *
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18 * (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved
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19 */
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20
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21 #include "mks/mks_i.h"
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22 #include "mks/mks_api.h"
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23 #include "mks/mks_env.h"
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24
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25 #include "kpd/kpd_api.h"
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26
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27 #include "rvm/rvm_use_id_list.h"
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28 #include "rv/rv_general.h"
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29
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30 #include <string.h>
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31
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32
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33 /* This value is set in the T_KEY_SEQUENCE_INFOS structure when post-sequence is on going */
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34 #define POST_SEQUENCE_COMPLETED 0x10
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35
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36 /** This structure defines */
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37 typedef struct { char name[KPD_MAX_CHAR_NAME+1];
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38 T_KPD_VIRTUAL_KEY_ID sequence_key[MKS_NB_MAX_OF_KEY_IN_KEY_SEQUENCE];
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39 UINT8 nb_key_of_sequence;
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40 UINT8 completion_type;
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41 UINT8 nb_key_for_post_sequence;
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42 UINT8 nb_key_sent_for_post_sequence;
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43 T_RV_RETURN return_path;
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44 } T_KEY_SEQUENCE_INFOS;
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45
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46
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47
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48
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49 /** Definition of the different magic key sequence.
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50 * Note that the magic key sequence is defined by a KPD_KEY_NULL key Id.
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51 */
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52 static T_KEY_SEQUENCE_INFOS* key_sequence_table[MKS_NB_MAX_OF_KEY_SEQUENCE] = {0};
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53
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54 /* Subscriber Id for keypad driver */
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55 static T_KPD_SUBSCRIBER subscriber_id;
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56
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57 /* Number of key sequence registered */
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58 static UINT8 nb_key_sequence = 0;
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59
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60 /* Key pressed history */
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61 static T_KPD_VIRTUAL_KEY_ID key_history[MKS_NB_MAX_OF_KEY_IN_KEY_SEQUENCE];
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62
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63
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64 /** External declaration */
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65 extern T_MKS_ENV_CTRL_BLK* mks_env_ctrl_blk;
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66
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67 /**
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68 * @name Functions implementation
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69 *
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70 */
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71 /*@{*/
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72
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73
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74 /**
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75 * function: mks_add_key_sequence_i
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76 */
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77 T_RV_RET mks_add_key_sequence_i(T_MKS_INFOS_KEY_SEQUENCE_MSG* infos_key_sequence_p)
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78 {
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79 UINT8 i;
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80 T_RVF_MB_STATUS mb_status;
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81 T_RV_RET ret = RV_OK;
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82 T_MKS_INFOS_KEY_SEQUENCE* infos_p = &(infos_key_sequence_p->key_sequence_infos);
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83
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84 if (nb_key_sequence < MKS_NB_MAX_OF_KEY_SEQUENCE)
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85 {
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86 /* Reserve memory for message */
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87 mb_status = rvf_get_buf (mks_env_ctrl_blk->prim_id, sizeof(T_KEY_SEQUENCE_INFOS), (void **) &key_sequence_table[nb_key_sequence]);
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88
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89 if (mb_status != RVF_RED) /* Memory allocation success */
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90 {
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91 /* Fill the structure */
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92 for (i = 0; i < infos_p->nb_key_of_sequence; i++)
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93 key_sequence_table[nb_key_sequence]->sequence_key[i] = infos_p->key_id[i];
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94
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95 key_sequence_table[nb_key_sequence]->nb_key_of_sequence = infos_p->nb_key_of_sequence;
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96 key_sequence_table[nb_key_sequence]->completion_type = infos_p->completion_type;
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97 key_sequence_table[nb_key_sequence]->return_path = infos_p->return_path;
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98 key_sequence_table[nb_key_sequence]->nb_key_for_post_sequence = infos_p->nb_key_for_post_sequence;
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99 infos_p->name[KPD_MAX_CHAR_NAME] = 0;
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100 strcpy(key_sequence_table[nb_key_sequence]->name, infos_p->name);
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101
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102 key_sequence_table[nb_key_sequence]->nb_key_sent_for_post_sequence = 0;
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103
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104 /* Update number of key sequence */
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105 nb_key_sequence++;
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106
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107 ret = RV_OK;
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108 }
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109 else
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110 {
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111 MKS_SEND_TRACE("MKS: Memory allocation error", RV_TRACE_LEVEL_ERROR);
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112 ret = RV_MEMORY_ERR;
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113 }
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114 }
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115 else
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116 {
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117 /* Maximum of magic key sequence registered*/
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118 ret = RV_INTERNAL_ERR;
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119 }
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120
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121 return ret;
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122 }
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123
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124 /**
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125 * function: mks_remove_key_sequence_i
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126 *
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127 */
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128 T_RV_RET mks_remove_key_sequence_i(T_MKS_REMOVE_KEY_SEQUENCE_MSG* remove_key_sequence_p)
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129 {
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130 UINT8 i;
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131
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132 for (i = 0; i < nb_key_sequence; i++)
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133 {
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134 /* Compare name of the key sequence */
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135 if ( !(strcmp(key_sequence_table[i]->name, remove_key_sequence_p->name)) )
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136 {
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137 /* Free memory used for the key sequence */
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138 rvf_free_buf(key_sequence_table[i]);
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139 nb_key_sequence--;
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140
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141 /* Sort out the table of key sequence */
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142 key_sequence_table[i] = key_sequence_table[nb_key_sequence];
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143 key_sequence_table[nb_key_sequence] = 0;
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144 break;
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145 }
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146 }
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147
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148 return RV_OK;
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149 }
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150
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151 /**
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152 * function: mks_check_key_sequence
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153 */
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154 void mks_check_key_sequence(T_KPD_KEY_EVENT_MSG* key_event_p)
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155 {
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156 UINT8 i,j, nb_key_of_sequence;
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157 BOOL key_sequence_completed = TRUE;
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158
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159 /* Stop timer */
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160 rvf_stop_timer(RVF_TIMER_0);
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161
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162 /* Update key pressed history */
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163 for (i = 0; i < MKS_NB_MAX_OF_KEY_IN_KEY_SEQUENCE-1; i++)
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164 key_history[i] = key_history[i+1];
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165
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166 key_history[MKS_NB_MAX_OF_KEY_IN_KEY_SEQUENCE-1] = key_event_p->key_info.virtual_key_id;
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167
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168 /* Check each key sequence */
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169 for (i = 0; i < nb_key_sequence; i++)
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170 {
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171 if (!(key_sequence_table[i]->completion_type & POST_SEQUENCE_COMPLETED))
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172 {
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173 /* Verify if magic key sequence is completed */
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174 nb_key_of_sequence = key_sequence_table[i]->nb_key_of_sequence;
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175 for (j = 0; j < nb_key_of_sequence; j++)
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176 {
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177 if (key_sequence_table[i]->sequence_key[nb_key_of_sequence-j-1] != key_history[MKS_NB_MAX_OF_KEY_IN_KEY_SEQUENCE-j-1])
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178 {
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179 key_sequence_completed = FALSE;
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180 break;
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181 }
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182 }
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183 if (key_sequence_completed == TRUE)
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184 {
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185 if (key_sequence_table[i]->completion_type == MKS_SEQUENCE_COMPLETED)
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186 {
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187 /* Process sequence completed */
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188 mks_send_key_sequence_completed_msg(MKS_SEQUENCE_COMPLETED,
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189 KPD_KEY_NULL,
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190 key_sequence_table[i]->return_path,
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191 key_sequence_table[i]->name);
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192 }
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193 else
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194 {
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195 /* Store info that post-sequence is on going */
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196 key_sequence_table[i]->completion_type |= POST_SEQUENCE_COMPLETED;
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197 }
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198 }
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199 else
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200 key_sequence_completed = TRUE;
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201 }
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202 else
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203 {
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204 /* Notify that magic key sequence is completed */
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205 mks_send_key_sequence_completed_msg(MKS_POST_SEQUENCE,
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206 key_event_p->key_info.virtual_key_id,
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207 key_sequence_table[i]->return_path,
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208 key_sequence_table[i]->name);
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209
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210 key_sequence_table[i]->nb_key_sent_for_post_sequence++;
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211
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212 if (key_sequence_table[i]->nb_key_sent_for_post_sequence == key_sequence_table[i]->nb_key_for_post_sequence)
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213 {
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214 key_sequence_table[i]->nb_key_sent_for_post_sequence = 0;
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215 key_sequence_table[i]->completion_type &= ~POST_SEQUENCE_COMPLETED;
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216 }
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217 }
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218 }
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219
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220 rvf_start_timer(RVF_TIMER_0, RVF_MS_TO_TICKS(MKS_TIME_RESET_KEY_SEQUENCE), FALSE);
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221 }
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222
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223
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224
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225 /**
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226 * function: mks_send_key_sequence_completed_msg
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227 */
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228 void mks_send_key_sequence_completed_msg(UINT8 completion_level,
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229 T_KPD_VIRTUAL_KEY_ID key_id,
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230 T_RV_RETURN return_path,
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231 char* name)
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232 {
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233 T_MKS_SEQUENCE_COMPLETED_MSG* msg_sequence_completed = 0;
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234 T_RVF_MB_STATUS mb_status;
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235
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236 /* Reserve memory for message */
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237 mb_status = rvf_get_buf (mks_env_ctrl_blk->prim_id, sizeof(T_MKS_SEQUENCE_COMPLETED_MSG), (void **) &msg_sequence_completed);
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238
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239 if (mb_status != RVF_RED) /* Memory allocation success */
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240 {
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241 /* Fill the message */
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242 msg_sequence_completed->hdr.msg_id = MKS_SEQUENCE_COMPLETED_MSG;
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243 strcpy(msg_sequence_completed->name, name);
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244 msg_sequence_completed->completion_type = completion_level;
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245 msg_sequence_completed->key_pressed = key_id;
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246
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247 /* Send message to the client */
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248 if (return_path.callback_func != 0)
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249 {
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250 return_path.callback_func((void*) msg_sequence_completed);
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251 rvf_free_buf(msg_sequence_completed);
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252 }
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253 else
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254 {
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255 rvf_send_msg(return_path.addr_id, msg_sequence_completed);
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256 }
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257 }
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258 else
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259 {
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260 MKS_SEND_TRACE("MKS: Memory allocation error", RV_TRACE_LEVEL_ERROR);
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261 }
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262 }
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263
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264
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265 /**
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266 * function: mks_reset_sequence
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267 */
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268 void mks_reset_sequence(void)
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269 {
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270 UINT8 i;
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271
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272 for (i = 0; i < MKS_NB_MAX_OF_KEY_IN_KEY_SEQUENCE; i++)
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273 key_history[i] = KPD_KEY_NULL;
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274 }
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275
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276
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277 /**
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278 * function: mks_initialize_swe
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279 */
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280 void mks_initialize_swe(void)
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281 {
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282 T_RV_RET ret;
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283 T_KPD_VIRTUAL_KEY_TABLE notified_keys;
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284 T_RV_RETURN return_path;
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285 UINT8 i;
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286
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287 /* Initialize key pressed history structure */
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288 for (i = 0; i < MKS_NB_MAX_OF_KEY_IN_KEY_SEQUENCE; i++)
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289 key_history[i] = KPD_KEY_NULL;
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290
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291 /* Subscription to the keypad */
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292 return_path.addr_id = mks_env_ctrl_blk->addr_id;
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293 return_path.callback_func = 0;
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294 notified_keys.nb_notified_keys = KPD_NB_PHYSICAL_KEYS;
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295 ret = kpd_subscribe (&subscriber_id, KPD_DEFAULT_MODE, ¬ified_keys, return_path);
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296
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297 if (ret != RV_OK)
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298 {
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299 MKS_SEND_TRACE("MKS: Unable to subscribe to the keypad", RV_TRACE_LEVEL_DEBUG_HIGH);
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300 }
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301 }
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302
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303
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304 /**
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305 * function: mks_stop_swe
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306 */
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307 void mks_stop_swe(void)
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308 {
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309 T_RV_RET ret;
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310
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311 /* Unsubscribe to the keypad */
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312 ret = kpd_unsubscribe(&subscriber_id);
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313
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314 if (ret != RV_OK)
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315 {
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316 MKS_SEND_TRACE("MKS: Unsubscription error", RV_TRACE_LEVEL_DEBUG_HIGH);
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317 }
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318 }
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319
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320
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321 /*@}*/
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