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annotate gsm-fw/serial/uart.h @ 253:475887e6b396

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tiffs IVA: close the file descriptor after mmap
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sat, 01 Feb 2014 22:22:07 +0000
parents afceeeb2cba1
children
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1 /*******************************************************************************
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2 *
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3 * UART.H
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4 *
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5 * This module allows to use the UARTs of chipset 1.5 in interrupt mode.
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6 * The driver calls a user's function when characters are received.
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7 *
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8 * (C) Texas Instruments 1999 - 2003
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9 *
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10 ******************************************************************************/
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11
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12 #ifndef __UART_H__
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13 #define __UART_H__
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14
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15 typedef enum {
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16 UA_UART_0, /* IrDA */
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17 UA_UART_1 /* Modem */
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18 #if (CHIPSET == 12)
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19 , UA_UART_2 /* Modem 2 */
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20 #endif
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21 } T_tr_UartId;
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22
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23 #if (CHIPSET == 12)
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24 #define NUMBER_OF_TR_UART (3)
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25 #else
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26 #define NUMBER_OF_TR_UART (2)
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27 #endif
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28
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29 #ifndef C_EXTERN
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30 #if 1 //(OP_L1_STANDALONE == 1)
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31 #define C_EXTERN extern
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32 #else
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33 #define C_EXTERN
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34 #endif
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35 #endif
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36
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37 /*******************************************************************************
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38 *
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39 * initialize_uart_sleep
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40 *
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41 * Purpose : Performs basic UART hardware initialization including sleep mode.
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42 *
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43 * Arguments: In : uart_id : UART id.
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44 * Out: none
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45 *
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46 * Returns: none
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47 *
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48 * Warning: Parameters are not verified.
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49 *
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50 ******************************************************************************/
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51
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52 C_EXTERN void initialize_uart_sleep (T_tr_UartId uart_id);
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53
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54 /*******************************************************************************
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55 *
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56 * UA_Init
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57 *
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58 * Purpose : Initializes the module and the UART.
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59 *
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60 * Arguments: In : uart_id : UART id.
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61 * baudrate: baud rate selected.
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62 * callback: user's function called characters are received.
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63 * Out: none
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64 *
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65 * Returns: none
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66 *
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67 * Warning: Parameters are not verified.
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68 *
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69 ******************************************************************************/
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70
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71 C_EXTERN void UA_Init (T_tr_UartId uart_id,
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72 T_tr_Baudrate baudrate,
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73 void (callback_function (void)));
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74
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75 /*******************************************************************************
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76 *
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77 * UA_ReadNChars
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78 *
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79 * Purpose : Reads N characters from the RX buffer.
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80 *
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81 * Arguments: In : uart_id : UART id.
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82 * buffer : buffer address where the characters are
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83 * copied.
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84 * chars_to_read: number of characters to read.
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85 * Out: none
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86 *
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87 * Returns : The number of characters read.
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88 *
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89 * Warning: Parameters are not verified.
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90 *
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91 ******************************************************************************/
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92
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93 C_EXTERN SYS_UWORD32 UA_ReadNChars (T_tr_UartId uart_id,
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94 char *buffer,
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95 SYS_UWORD32 chars_to_read);
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96
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97 /*******************************************************************************
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98 *
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99 * UA_ReadNBytes
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100 *
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101 * Purpose : Reads and destuff N bytes from the RX buffer.
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102 *
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103 * Arguments: In : uart_id : UART id.
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104 * buffer : buffer address where the bytes are copied.
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105 * chars_to_read: number of bytes to read.
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106 * Out: eof_detected : indicates if an EOF has been detected.
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107 *
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108 * Returns : The number of bytes read.
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109 *
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110 * Warning: Parameters are not verified.
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111 *
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112 ******************************************************************************/
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113
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114 C_EXTERN SYS_UWORD32 UA_ReadNBytes (T_tr_UartId uart_id,
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115 char *buffer,
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116 SYS_UWORD32 bytes_to_read,
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117 SYS_BOOL *eof_detected);
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118
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119 /*******************************************************************************
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120 *
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121 * UA_WriteNChars
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122 *
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123 * Purpose : Writes N characters in the TX FIFO.
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124 *
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125 * Arguments: In : uart_id : UART id.
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126 * buffer : buffer address from which characters are
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127 * written.
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128 * bytes_to_write: number of bytes to write.
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129 * Out: none
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130 *
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131 * Returns : Number of bytes written.
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132 *
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133 * Warning: Parameters are not verified.
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134 *
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135 ******************************************************************************/
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136
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137 C_EXTERN SYS_UWORD32 UA_WriteNChars (T_tr_UartId uart_id,
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138 char *buffer,
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139 SYS_UWORD32 chars_to_write);
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140
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141 /*******************************************************************************
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142 *
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143 * UA_EncapsulateNChars
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144 *
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145 * Purpose : Writes N characters in the TX FIFO in encapsulating them with 2
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146 * STX bytes (one at the beginning and one at the end).
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147 *
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148 * Arguments: In : uart_id : UART id.
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149 * buffer : buffer address from which characters are
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150 * written.
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151 * chars_to_write: number of chars to write.
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152 * Out: none
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153 *
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154 * Returns : Number of chars written.
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155 *
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156 * Warning: Parameters are not verified.
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157 *
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158 ******************************************************************************/
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159
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160 C_EXTERN SYS_UWORD32 UA_EncapsulateNChars (T_tr_UartId uart_id,
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161 char *buffer,
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162 SYS_UWORD32 chars_to_write);
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163
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164 /*******************************************************************************
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165 *
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166 * UA_WriteNBytes
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167 *
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168 * Purpose : Writes N bytes in the TX FIFO in encapsulating with 2 STX bytes
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169 * at the beginning and the end of the frame, and in making byte
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170 * stuffing.
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171 *
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172 * Arguments: In : uart_id : UART id.
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173 * buffer : buffer address from which bytes are
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174 * written.
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175 * bytes_to_write: number of bytes to write.
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176 * Out: none
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177 *
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178 * Returns : Number of bytes written.
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179 *
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180 * Warning: Parameters are not verified.
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181 *
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182 ******************************************************************************/
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183
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184 C_EXTERN SYS_UWORD32 UA_WriteNBytes (T_tr_UartId uart_id,
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185 SYS_UWORD8 *buffer,
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186 SYS_UWORD32 bytes_to_write);
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187
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188 /*******************************************************************************
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189 *
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190 * UA_WriteChar
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191 *
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192 * Purpose : Writes a character in the TX FIFO.
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193 *
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194 * Arguments: In : uart: UART id.
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195 * character
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196 * Out: none
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197 *
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198 * Returns : none
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199 *
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200 * Warning: Parameters are not verified.
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201 *
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202 ******************************************************************************/
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203
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204 C_EXTERN void UA_WriteChar (T_tr_UartId uart_id,
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205 char character);
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206
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207 /*******************************************************************************
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208 *
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209 * UA_WriteString
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210 *
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211 * Purpose : Writes a null terminated string in the TX FIFO.
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212 *
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213 * Arguments: In : uart_id: UART id.
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214 * buffer : buffer address from which characters are written.
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215 * Out: none
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216 *
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217 * Returns : none
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218 *
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219 * Warning: Parameters are not verified.
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220 *
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221 ******************************************************************************/
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222
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223 C_EXTERN void UA_WriteString (T_tr_UartId uart_id,
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224 char *buffer);
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225
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226 /*******************************************************************************
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227 *
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228 * UA_EnterSleep
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229 *
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230 * Purpose : Checks if UART is ready to enter Deep Sleep. If ready, enables
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231 * wake-up interrupt.
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232 *
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233 * Arguments: In : uart_id : UART id.
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234 * Out: none
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235 *
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236 * Returns: 0 : Deep Sleep is not possible.
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237 * >= 1 : Deep Sleep is possible.
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238 *
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239 * Warning: Parameters are not verified.
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240 *
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241 ******************************************************************************/
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242
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243 C_EXTERN SYS_BOOL UA_EnterSleep (T_tr_UartId uart_id);
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244
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245 /*******************************************************************************
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246 *
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247 * UA_WakeUp
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248 *
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249 * Purpose : Wakes up UART after Deep Sleep.
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250 *
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251 * Arguments: In : uart_id : UART id.
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252 * Out: none
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253 *
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254 * Returns: none
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255 *
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256 * Warning: Parameters are not verified.
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257 *
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258 ******************************************************************************/
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259
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260 C_EXTERN void UA_WakeUp (T_tr_UartId uart_id);
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261
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262 /*******************************************************************************
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263 *
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264 * UA_InterruptHandler
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265 *
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266 * Purpose : Interrupt handler.
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267 *
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268 * Arguments: In : uart_id : origin of interrupt
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269 * interrupt_status: source of interrupt
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270 * Out: none
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271 *
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272 * Returns : none
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273 *
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274 ******************************************************************************/
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275
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276 void UA_InterruptHandler (T_tr_UartId uart_id,
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277 SYS_UWORD8 interrupt_status);
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278
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279 #undef C_EXTERN
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280
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281 #endif /* __UART_H__ */