1 | /*
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2 | io_serial.c
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3 | Serial port input/output functions
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4 |
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5 | This file is part of the Unix driver for Towitoko smartcard readers
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6 | Copyright (C) 2000 2001 Carlos Prados <cprados@yahoo.com>
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7 |
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8 | This version is modified by doz21 to work in a special manner ;)
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9 |
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10 | This library is free software; you can redistribute it and/or
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11 | modify it under the terms of the GNU Lesser General Public
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12 | License as published by the Free Software Foundation; either
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13 | version 2 of the License, or (at your option) any later version.
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14 |
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15 | This library is distributed in the hope that it will be useful,
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16 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 | Lesser General Public License for more details.
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19 |
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20 | You should have received a copy of the GNU Lesser General Public
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21 | License along with this library; if not, write to the Free Software
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22 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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23 | */
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24 |
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25 | #include "defines.h"
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26 | #include "../globals.h"
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27 | #include <stdio.h>
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28 | #include <string.h>
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29 | #include <stdlib.h>
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30 | #include <errno.h>
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31 | #ifdef OS_HPUX
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32 | #include <sys/modem.h>
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33 | #endif
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34 | #include <termios.h>
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35 | #include <unistd.h>
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36 | #include <sys/stat.h>
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37 | #include <fcntl.h>
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38 | #ifdef HAVE_POLL
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39 | #include <sys/poll.h>
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40 | #else
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41 | #include <sys/signal.h>
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42 | #include <sys/types.h>
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43 | #endif
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44 | #include <sys/time.h>
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45 | #include <sys/ioctl.h>
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46 | #include <time.h>
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47 | #include "io_serial.h"
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48 | #include "mc_global.h"
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49 |
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50 | #ifdef OS_LINUX
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51 | #include <linux/serial.h>
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52 | #endif
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53 |
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54 | #define IO_SERIAL_FILENAME_LENGTH 32
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55 |
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56 | /*
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57 | * Internal functions declaration
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58 | */
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59 |
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60 | static int IO_Serial_Bitrate(int bitrate);
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61 |
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62 | static bool IO_Serial_WaitToRead (unsigned delay_ms, unsigned timeout_ms);
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63 |
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64 | static bool IO_Serial_WaitToWrite (unsigned delay_ms, unsigned timeout_ms);
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65 |
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66 | static int _in_echo_read = 0;
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67 | int io_serial_need_dummy_char = 0;
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68 |
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69 | extern int fdmc;
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70 |
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71 | #if defined(TUXBOX) && defined(PPC)
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72 | void IO_Serial_Ioctl_Lock(int flag)
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73 | {
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74 | extern int *oscam_sem;
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75 | if ((reader[ridx].typ != R_DB2COM1) && (reader[ridx].typ != R_DB2COM2)) return;
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76 | if (!flag)
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77 | *oscam_sem=0;
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78 | else while (*oscam_sem!=reader[ridx].typ)
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79 | {
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80 | while (*oscam_sem)
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81 | usleep((reader[ridx].typ)*2000); //FIXME is this right ?!?!
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82 | *oscam_sem=reader[ridx].typ;
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83 | usleep(1000);
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84 | }
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85 | }
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86 |
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87 | static bool IO_Serial_DTR_RTS_dbox2(int mcport, int dtr, int set)
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88 | {
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89 | int rc;
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90 | unsigned short msr;
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91 | unsigned int mbit;
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92 | unsigned short rts_bits[2]={ 0x10, 0x800};
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93 | unsigned short dtr_bits[2]={0x100, 0};
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94 |
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95 | #ifdef DEBUG_IO
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96 | printf("IO: multicam.o %s %s\n", dtr ? "dtr" : "rts", set ? "set" : "clear"); fflush(stdout);
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97 | #endif
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98 | if ((rc=ioctl(fdmc, GET_PCDAT, &msr))>=0)
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99 | {
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100 | if (dtr) // DTR
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101 | {
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102 | if (dtr_bits[mcport])
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103 | {
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104 | if (set)
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105 | msr&=(unsigned short)(~dtr_bits[mcport]);
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106 | else
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107 | msr|=dtr_bits[mcport];
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108 | rc=ioctl(fdmc, SET_PCDAT, &msr);
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109 | }
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110 | else
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111 | rc=0; // Dummy, can't handle using multicam.o
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112 | }
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113 | else // RTS
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114 | {
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115 | if (set)
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116 | msr&=(unsigned short)(~rts_bits[mcport]);
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117 | else
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118 | msr|=rts_bits[mcport];
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119 | rc=ioctl(fdmc, SET_PCDAT, &msr);
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120 | }
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121 | }
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122 | return((rc<0) ? FALSE : TRUE);
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123 | }
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124 | #endif
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125 |
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126 | bool IO_Serial_DTR_RTS(int dtr, int set)
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127 | {
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128 | unsigned int msr;
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129 | unsigned int mbit;
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130 |
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131 | #if defined(TUXBOX) && defined(PPC)
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132 | if ((reader[ridx].typ == R_DB2COM1) || (reader[ridx].typ == R_DB2COM2))
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133 | return(IO_Serial_DTR_RTS_dbox2(reader[ridx].typ == R_DB2COM2, dtr, set));
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134 | #endif
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135 |
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136 | mbit=(dtr) ? TIOCM_DTR : TIOCM_RTS;
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137 | #if defined(TIOCMBIS) && defined(TIOBMBIC)
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138 | if (ioctl (reader[ridx].handle, set ? TIOCMBIS : TIOCMBIC, &mbit) < 0)
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139 | return FALSE;
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140 | #else
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141 | if (ioctl(reader[ridx].handle, TIOCMGET, &msr) < 0)
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142 | return FALSE;
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143 | if (set)
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144 | msr|=mbit;
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145 | else
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146 | msr&=~mbit;
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147 | return((ioctl(reader[ridx].handle, TIOCMSET, &msr)<0) ? FALSE : TRUE);
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148 | #endif
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149 | }
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150 |
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151 | /*
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152 | * Public functions definition
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153 | */
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154 |
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155 | bool IO_Serial_SetBitrate (unsigned long bitrate, struct termios * tio)
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156 | {
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157 | /* Set the bitrate */
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158 | #ifdef OS_LINUX
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159 | if (reader[ridx].mhz == reader[ridx].cardmhz)
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160 | #endif
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161 | { //no overcloking
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162 | cfsetospeed(tio, IO_Serial_Bitrate(bitrate));
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163 | cfsetispeed(tio, IO_Serial_Bitrate(bitrate));
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164 | cs_debug("standard baudrate: cardmhz=%d mhz=%d -> effective baudrate %lu", reader[ridx].cardmhz, reader[ridx].mhz, bitrate);
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165 | }
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166 | #ifdef OS_LINUX
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167 | else { //over or underclocking
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168 | /* these structures are only available on linux as fas as we know so limit this code to OS_LINUX */
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169 | struct serial_struct nuts;
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170 | ioctl(reader[ridx].handle, TIOCGSERIAL, &nuts);
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171 | int custom_baud = bitrate * reader[ridx].mhz / reader[ridx].cardmhz;
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172 | nuts.custom_divisor = (nuts.baud_base + (custom_baud/2))/ custom_baud;
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173 | cs_debug("custom baudrate: cardmhz=%d mhz=%d custom_baud=%d baud_base=%d divisor=%d -> effective baudrate %d",
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174 | reader[ridx].cardmhz, reader[ridx].mhz, custom_baud, nuts.baud_base, nuts.custom_divisor, nuts.baud_base/nuts.custom_divisor);
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175 | nuts.flags &= ~ASYNC_SPD_MASK;
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176 | nuts.flags |= ASYNC_SPD_CUST;
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177 | ioctl(reader[ridx].handle, TIOCSSERIAL, &nuts);
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178 | cfsetospeed(tio, IO_Serial_Bitrate(38400));
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179 | cfsetispeed(tio, IO_Serial_Bitrate(38400));
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180 | }
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181 | #endif
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182 | return TRUE;
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183 | }
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184 |
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185 | bool IO_Serial_SetParams (unsigned long bitrate, unsigned bits, int parity, unsigned stopbits, int dtr, int rts)
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186 | {
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187 | struct termios newtio;
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188 |
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189 | if(reader[ridx].typ == R_INTERNAL)
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190 | return FALSE;
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191 |
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192 | memset (&newtio, 0, sizeof (newtio));
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193 |
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194 | if (!IO_Serial_SetBitrate (bitrate, & newtio))
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195 | return FALSE;
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196 |
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197 | /* Set the character size */
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198 | switch (bits)
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199 | {
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200 | case 5:
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201 | newtio.c_cflag |= CS5;
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202 | break;
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203 |
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204 | case 6:
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205 | newtio.c_cflag |= CS6;
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206 | break;
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207 |
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208 | case 7:
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209 | newtio.c_cflag |= CS7;
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210 | break;
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211 |
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212 | case 8:
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213 | newtio.c_cflag |= CS8;
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214 | break;
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215 | }
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216 |
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217 | /* Set the parity */
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218 | switch (parity)
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219 | {
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220 | case PARITY_ODD:
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221 | newtio.c_cflag |= PARENB;
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222 | newtio.c_cflag |= PARODD;
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223 | break;
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224 |
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225 | case PARITY_EVEN:
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226 | newtio.c_cflag |= PARENB;
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227 | newtio.c_cflag &= ~PARODD;
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228 | break;
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229 |
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230 | case PARITY_NONE:
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231 | newtio.c_cflag &= ~PARENB;
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232 | break;
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233 | }
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234 |
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235 | /* Set the number of stop bits */
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236 | switch (stopbits)
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237 | {
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238 | case 1:
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239 | newtio.c_cflag &= (~CSTOPB);
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240 | break;
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241 | case 2:
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242 | newtio.c_cflag |= CSTOPB;
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243 | break;
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244 | }
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245 |
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246 | /* Selects raw (non-canonical) input and output */
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247 | newtio.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
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248 | newtio.c_oflag &= ~OPOST;
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249 | #if 1
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250 | newtio.c_iflag |= IGNPAR;
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251 | /* Ignore parity errors!!! Windows driver does so why shouldn't I? */
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252 | #endif
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253 | /* Enable receiber, hang on close, ignore control line */
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254 | newtio.c_cflag |= CREAD | HUPCL | CLOCAL;
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255 |
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256 | /* Read 1 byte minimun, no timeout specified */
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257 | newtio.c_cc[VMIN] = 1;
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258 | newtio.c_cc[VTIME] = 0;
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259 |
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260 | if (!IO_Serial_SetProperties(newtio))
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261 | return FALSE;
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262 |
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263 | reader[ridx].baudrate = bitrate;
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264 |
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265 | IO_Serial_Ioctl_Lock(1);
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266 | IO_Serial_DTR_RTS(0, rts == IO_SERIAL_HIGH);
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267 | IO_Serial_DTR_RTS(1, dtr == IO_SERIAL_HIGH);
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268 | IO_Serial_Ioctl_Lock(0);
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269 |
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270 | return TRUE;
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271 | }
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272 |
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273 | bool IO_Serial_SetProperties (struct termios newtio)
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274 | {
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275 | if(reader[ridx].typ == R_INTERNAL)
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276 | return FALSE;
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277 |
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278 | if (tcsetattr (reader[ridx].handle, TCSANOW, &newtio) < 0)
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279 | return FALSE;
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280 | // tcflush(reader[ridx].handle, TCIOFLUSH);
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281 | // if (tcsetattr (reader[ridx].handle, TCSAFLUSH, &newtio) < 0)
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282 | // return FALSE;
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283 |
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284 | unsigned int mctl;
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285 | if (ioctl (reader[ridx].handle, TIOCMGET, &mctl) < 0)
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286 | return FALSE;
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287 |
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288 | #ifdef DEBUG_IO
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289 | printf("IO: Setting properties\n");
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290 | #endif
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291 |
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292 | return TRUE;
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293 | }
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294 |
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295 | int IO_Serial_SetParity (BYTE parity)
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296 | {
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297 | if(reader[ridx].typ == R_INTERNAL)
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298 | return TRUE;
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299 |
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300 | if ((parity != PARITY_EVEN) && (parity != PARITY_ODD) && (parity != PARITY_NONE))
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301 | return FALSE;
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302 |
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303 | struct termios tio;
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304 | int current_parity;
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305 | // Get current parity
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306 | if (tcgetattr (reader[ridx].handle, &tio) != 0)
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307 | return FALSE;
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308 |
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309 | if (((tio.c_cflag) & PARENB) == PARENB)
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310 | {
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311 | if (((tio.c_cflag) & PARODD) == PARODD)
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312 | current_parity = PARITY_ODD;
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313 | else
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314 | current_parity = PARITY_EVEN;
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315 | }
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316 | else
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317 | {
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318 | current_parity = PARITY_NONE;
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319 | }
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320 |
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321 | #ifdef DEBUG_IFD
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322 | printf ("IFD: Setting parity from %s to %s\n",
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323 | current_parity == PARITY_ODD ? "Odd" :
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324 | current_parity == PARITY_NONE ? "None" :
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325 | current_parity == PARITY_EVEN ? "Even" : "Invalid",
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326 | parity == PARITY_ODD ? "Odd" :
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327 | parity == PARITY_NONE ? "None" :
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328 | parity == PARITY_EVEN ? "Even" : "Invalid");
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329 | #endif
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330 |
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331 | if (current_parity != parity)
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332 | {
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333 |
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334 | // Set the parity
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335 | switch (parity)
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336 | {
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337 | case PARITY_ODD:
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338 | tio.c_cflag |= PARENB;
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339 | tio.c_cflag |= PARODD;
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340 | break;
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341 |
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342 | case PARITY_EVEN:
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343 | tio.c_cflag |= PARENB;
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344 | tio.c_cflag &= ~PARODD;
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345 | break;
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346 |
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347 | case PARITY_NONE:
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348 | tio.c_cflag &= ~PARENB;
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349 | break;
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350 | }
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351 | if (!IO_Serial_SetProperties (tio))
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352 | return FALSE;
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353 | }
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354 |
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355 | return TRUE;
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356 | }
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357 |
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358 | void IO_Serial_Flush ()
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359 | {
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360 | BYTE b;
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361 | while(IO_Serial_Read(1000, 1, &b));
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362 | }
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363 |
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364 |
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365 | bool IO_Serial_Read (unsigned timeout, unsigned size, BYTE * data)
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366 | {
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367 | BYTE c;
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368 | uint count = 0;
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369 | #ifdef SH4
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370 | bool readed;
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371 | struct timeval tv, tv_spent;
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372 | #endif
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373 |
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374 | if((reader[ridx].typ != R_INTERNAL) && (wr>0))
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375 | {
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376 | BYTE buf[256];
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377 | int n = wr;
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378 | wr = 0;
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379 |
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380 | if(!IO_Serial_Read (timeout, n, buf))
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381 | {
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382 | return FALSE;
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383 | }
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384 | }
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385 |
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386 | #ifdef DEBUG_IO
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387 | printf ("IO: Receiving: ");
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388 | fflush (stdout);
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389 | #endif
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390 | for (count = 0; count < size * (_in_echo_read ? (1+io_serial_need_dummy_char) : 1); count++)
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391 | {
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392 | #ifdef SH4
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393 | gettimeofday(&tv,0);
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394 | memcpy(&tv_spent,&tv,sizeof(struct timeval));
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395 | readed=FALSE;
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396 | while( (((tv_spent.tv_sec-tv.tv_sec)*1000) + ((tv_spent.tv_usec-tv.tv_usec)/1000L))<timeout )
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397 | {
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398 | if (read (reader[ridx].handle, &c, 1) == 1)
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399 | {
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400 | readed=TRUE;
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401 | break;
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402 | }
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403 | gettimeofday(&tv_spent,0);
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404 | }
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405 | if(!readed) return FALSE;
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406 |
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407 | data[_in_echo_read ? count/(1+io_serial_need_dummy_char) : count] = c;
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408 | #ifdef DEBUG_IO
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409 | printf ("%X ", c);
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410 | fflush (stdout);
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411 | #endif
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412 | #else
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413 | if (IO_Serial_WaitToRead (0, timeout))
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414 | {
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415 | if (read (reader[ridx].handle, &c, 1) != 1)
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416 | {
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417 | #ifdef DEBUG_IO
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418 | printf ("ERROR\n");
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419 | fflush (stdout);
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420 | #endif
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421 | return FALSE;
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422 | }
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423 | data[_in_echo_read ? count/(1+io_serial_need_dummy_char) : count] = c;
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424 |
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425 | #ifdef DEBUG_IO
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426 | printf ("%X ", c);
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427 | fflush (stdout);
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428 | #endif
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429 | }
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430 | else
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431 | {
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432 | #ifdef DEBUG_IO
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433 | printf ("TIMEOUT\n");
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434 | fflush (stdout);
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435 | #endif
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436 | tcflush (reader[ridx].handle, TCIFLUSH);
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437 | return FALSE;
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438 | }
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439 | #endif
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440 | }
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441 |
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442 | _in_echo_read = 0;
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443 |
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444 | #ifdef DEBUG_IO
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445 | printf ("\n");
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446 | fflush (stdout);
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447 | #endif
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448 |
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449 | return TRUE;
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450 | }
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451 |
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452 |
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453 |
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454 |
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455 | bool IO_Serial_Write (unsigned delay, unsigned size, BYTE * data)
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456 | {
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457 | unsigned count, to_send, i_w;
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458 | BYTE data_w[512];
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459 | #ifdef DEBUG_IO
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460 | unsigned i;
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461 |
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462 | printf ("IO: Sending: ");
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463 | fflush (stdout);
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464 | #endif
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465 | /* Discard input data from previous commands */
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466 | // tcflush (reader[ridx].handle, TCIFLUSH);
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467 |
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468 | for (count = 0; count < size; count += to_send)
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469 | {
|
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470 | // if(reader[ridx].typ == R_INTERNAL)
|
---|
471 | // to_send = 1;
|
---|
472 | // else
|
---|
473 | to_send = (delay? 1: size);
|
---|
474 |
|
---|
475 | if (IO_Serial_WaitToWrite (delay, 1000))
|
---|
476 | {
|
---|
477 | for (i_w=0; i_w < to_send; i_w++) {
|
---|
478 | data_w [(1+io_serial_need_dummy_char)*i_w] = data [count + i_w];
|
---|
479 | if (io_serial_need_dummy_char) {
|
---|
480 | data_w [2*i_w+1] = 0x00;
|
---|
481 | }
|
---|
482 | }
|
---|
483 | unsigned int u = write (reader[ridx].handle, data_w, (1+io_serial_need_dummy_char)*to_send);
|
---|
484 | _in_echo_read = 1;
|
---|
485 | if (u != (1+io_serial_need_dummy_char)*to_send)
|
---|
486 | {
|
---|
487 | #ifdef DEBUG_IO
|
---|
488 | printf ("ERROR\n");
|
---|
489 | fflush (stdout);
|
---|
490 | #endif
|
---|
491 | if(reader[ridx].typ != R_INTERNAL)
|
---|
492 | wr += u;
|
---|
493 | return FALSE;
|
---|
494 | }
|
---|
495 |
|
---|
496 | if(reader[ridx].typ != R_INTERNAL)
|
---|
497 | wr += to_send;
|
---|
498 |
|
---|
499 | #ifdef DEBUG_IO
|
---|
500 | for (i=0; i<(1+io_serial_need_dummy_char)*to_send; i++)
|
---|
501 | printf ("%X ", data_w[count + i]);
|
---|
502 | fflush (stdout);
|
---|
503 | #endif
|
---|
504 | }
|
---|
505 | else
|
---|
506 | {
|
---|
507 | #ifdef DEBUG_IO
|
---|
508 | printf ("TIMEOUT\n");
|
---|
509 | fflush (stdout);
|
---|
510 | #endif
|
---|
511 | // tcflush (reader[ridx].handle, TCIFLUSH);
|
---|
512 | return FALSE;
|
---|
513 | }
|
---|
514 | }
|
---|
515 |
|
---|
516 | #ifdef DEBUG_IO
|
---|
517 | printf ("\n");
|
---|
518 | fflush (stdout);
|
---|
519 | #endif
|
---|
520 |
|
---|
521 | return TRUE;
|
---|
522 | }
|
---|
523 |
|
---|
524 | bool IO_Serial_Close ()
|
---|
525 | {
|
---|
526 |
|
---|
527 | #ifdef DEBUG_IO
|
---|
528 | printf ("IO: Clossing serial port %s\n", reader[ridx].device);
|
---|
529 | #endif
|
---|
530 |
|
---|
531 | #if defined(TUXBOX) && defined(PPC)
|
---|
532 | close(fdmc);
|
---|
533 | #endif
|
---|
534 | if (close (reader[ridx].handle) != 0)
|
---|
535 | return FALSE;
|
---|
536 |
|
---|
537 | wr = 0;
|
---|
538 |
|
---|
539 | return TRUE;
|
---|
540 | }
|
---|
541 |
|
---|
542 | /*
|
---|
543 | * Internal functions definition
|
---|
544 | */
|
---|
545 |
|
---|
546 | static int IO_Serial_Bitrate(int bitrate)
|
---|
547 | {
|
---|
548 | #ifdef B230400
|
---|
549 | if ((bitrate)>=230400) return B230400;
|
---|
550 | #endif
|
---|
551 | #ifdef B115200
|
---|
552 | if ((bitrate)>=115200) return B115200;
|
---|
553 | #endif
|
---|
554 | #ifdef B57600
|
---|
555 | if ((bitrate)>=57600) return B57600;
|
---|
556 | #endif
|
---|
557 | #ifdef B38400
|
---|
558 | if ((bitrate)>=38400) return B38400;
|
---|
559 | #endif
|
---|
560 | #ifdef B19200
|
---|
561 | if ((bitrate)>=19200) return B19200;
|
---|
562 | #endif
|
---|
563 | #ifdef B9600
|
---|
564 | if ((bitrate)>=9600) return B9600;
|
---|
565 | #endif
|
---|
566 | #ifdef B4800
|
---|
567 | if ((bitrate)>=4800) return B4800;
|
---|
568 | #endif
|
---|
569 | #ifdef B2400
|
---|
570 | if ((bitrate)>=2400) return B2400;
|
---|
571 | #endif
|
---|
572 | #ifdef B1800
|
---|
573 | if ((bitrate)>=1800) return B1800;
|
---|
574 | #endif
|
---|
575 | #ifdef B1200
|
---|
576 | if ((bitrate)>=1200) return B1200;
|
---|
577 | #endif
|
---|
578 | #ifdef B600
|
---|
579 | if ((bitrate)>=600) return B600;
|
---|
580 | #endif
|
---|
581 | #ifdef B300
|
---|
582 | if ((bitrate)>=300) return B300;
|
---|
583 | #endif
|
---|
584 | #ifdef B200
|
---|
585 | if ((bitrate)>=200) return B200;
|
---|
586 | #endif
|
---|
587 | #ifdef B150
|
---|
588 | if ((bitrate)>=150) return B150;
|
---|
589 | #endif
|
---|
590 | #ifdef B134
|
---|
591 | if ((bitrate)>=134) return B134;
|
---|
592 | #endif
|
---|
593 | #ifdef B110
|
---|
594 | if ((bitrate)>=110) return B110;
|
---|
595 | #endif
|
---|
596 | #ifdef B75
|
---|
597 | if ((bitrate)>=75) return B75;
|
---|
598 | #endif
|
---|
599 | #ifdef B50
|
---|
600 | if ((bitrate)>=50) return B50;
|
---|
601 | #endif
|
---|
602 | #ifdef B0
|
---|
603 | if ((bitrate)>=0) return B0;
|
---|
604 | #endif
|
---|
605 | return 0; /* Should never get here */
|
---|
606 | }
|
---|
607 |
|
---|
608 | static bool IO_Serial_WaitToRead (unsigned delay_ms, unsigned timeout_ms)
|
---|
609 | {
|
---|
610 | fd_set rfds;
|
---|
611 | fd_set erfds;
|
---|
612 | struct timeval tv;
|
---|
613 | int select_ret;
|
---|
614 | int in_fd;
|
---|
615 |
|
---|
616 | if (delay_ms > 0)
|
---|
617 | {
|
---|
618 | #ifdef HAVE_NANOSLEEP
|
---|
619 | struct timespec req_ts;
|
---|
620 |
|
---|
621 | req_ts.tv_sec = delay_ms / 1000;
|
---|
622 | req_ts.tv_nsec = (delay_ms % 1000) * 1000000L;
|
---|
623 | nanosleep (&req_ts, NULL);
|
---|
624 | #else
|
---|
625 | usleep (delay_ms * 1000L);
|
---|
626 | #endif
|
---|
627 | }
|
---|
628 |
|
---|
629 | in_fd=reader[ridx].handle;
|
---|
630 |
|
---|
631 | FD_ZERO(&rfds);
|
---|
632 | FD_SET(in_fd, &rfds);
|
---|
633 |
|
---|
634 | FD_ZERO(&erfds);
|
---|
635 | FD_SET(in_fd, &erfds);
|
---|
636 |
|
---|
637 | tv.tv_sec = timeout_ms/1000;
|
---|
638 | tv.tv_usec = (timeout_ms % 1000) * 1000L;
|
---|
639 | select_ret = select(in_fd+1, &rfds, NULL, &erfds, &tv);
|
---|
640 | if(select_ret==-1)
|
---|
641 | {
|
---|
642 | printf("select_ret=%i\n" , select_ret);
|
---|
643 | printf("errno =%d\n", errno);
|
---|
644 | fflush(stdout);
|
---|
645 | return (FALSE);
|
---|
646 | }
|
---|
647 |
|
---|
648 | if (FD_ISSET(in_fd, &erfds))
|
---|
649 | {
|
---|
650 | printf("fd is in error fds\n");
|
---|
651 | printf("errno =%d\n", errno);
|
---|
652 | fflush(stdout);
|
---|
653 | return (FALSE);
|
---|
654 | }
|
---|
655 |
|
---|
656 | return(FD_ISSET(in_fd,&rfds));
|
---|
657 | }
|
---|
658 |
|
---|
659 | static bool IO_Serial_WaitToWrite (unsigned delay_ms, unsigned timeout_ms)
|
---|
660 | {
|
---|
661 | fd_set wfds;
|
---|
662 | fd_set ewfds;
|
---|
663 | struct timeval tv;
|
---|
664 | int select_ret;
|
---|
665 | int out_fd;
|
---|
666 |
|
---|
667 | #ifdef SCI_DEV
|
---|
668 | if(reader[ridx].typ == R_INTERNAL)
|
---|
669 | return TRUE;
|
---|
670 | #endif
|
---|
671 |
|
---|
672 | if (delay_ms > 0)
|
---|
673 | {
|
---|
674 | #ifdef HAVE_NANOSLEEP
|
---|
675 | struct timespec req_ts;
|
---|
676 |
|
---|
677 | req_ts.tv_sec = delay_ms / 1000;
|
---|
678 | req_ts.tv_nsec = (delay_ms % 1000) * 1000000L;
|
---|
679 | nanosleep (&req_ts, NULL);
|
---|
680 | #else
|
---|
681 | usleep (delay_ms * 1000L);
|
---|
682 | #endif
|
---|
683 | }
|
---|
684 |
|
---|
685 | out_fd=reader[ridx].handle;
|
---|
686 |
|
---|
687 | FD_ZERO(&wfds);
|
---|
688 | FD_SET(out_fd, &wfds);
|
---|
689 |
|
---|
690 | FD_ZERO(&ewfds);
|
---|
691 | FD_SET(out_fd, &ewfds);
|
---|
692 |
|
---|
693 | tv.tv_sec = timeout_ms/1000L;
|
---|
694 | tv.tv_usec = (timeout_ms % 1000) * 1000L;
|
---|
695 |
|
---|
696 | select_ret = select(out_fd+1, NULL, &wfds, &ewfds, &tv);
|
---|
697 |
|
---|
698 | if(select_ret==-1)
|
---|
699 | {
|
---|
700 | printf("select_ret=%d\n" , select_ret);
|
---|
701 | printf("errno =%d\n", errno);
|
---|
702 | fflush(stdout);
|
---|
703 | return (FALSE);
|
---|
704 | }
|
---|
705 |
|
---|
706 | if (FD_ISSET(out_fd, &ewfds))
|
---|
707 | {
|
---|
708 | printf("fd is in ewfds\n");
|
---|
709 | printf("errno =%d\n", errno);
|
---|
710 | fflush(stdout);
|
---|
711 | return (FALSE);
|
---|
712 | }
|
---|
713 |
|
---|
714 | return(FD_ISSET(out_fd,&wfds));
|
---|
715 |
|
---|
716 | }
|
---|
717 |
|
---|
718 | bool IO_Serial_InitPnP ()
|
---|
719 | {
|
---|
720 | unsigned int PnP_id_size = 0;
|
---|
721 | BYTE PnP_id[IO_SERIAL_PNPID_SIZE]; /* PnP Id of the serial device */
|
---|
722 |
|
---|
723 | if (!IO_Serial_SetParams (1200, 7, PARITY_NONE, 1, IO_SERIAL_HIGH, IO_SERIAL_LOW))
|
---|
724 | return FALSE;
|
---|
725 |
|
---|
726 | while ((PnP_id_size < IO_SERIAL_PNPID_SIZE) && IO_Serial_Read (200, 1, &(PnP_id[PnP_id_size])))
|
---|
727 | PnP_id_size++;
|
---|
728 |
|
---|
729 | return TRUE;
|
---|
730 | }
|
---|
731 |
|
---|