annotate src/video/fbcon/SDL_fbelo.c @ 3235:d35b649858e0

David Carre to Sam Hello sam, me again. I'v fixed another bug in the pandora code, it's on the no-X videodriver, i forgot to add some code to destroy the window so it was impossible to reload SDL inside the same application (eglTerminate). You'll find the svn diff attached. See you, David.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 11 Aug 2009 13:45:01 +0000
parents 99210400e8b9
children f7b03b6838cb
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include <unistd.h>
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25 #include <sys/time.h>
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26 #include <ctype.h>
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27
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28 #include "SDL_stdinc.h"
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29 #include "SDL_fbvideo.h"
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30 #include "SDL_fbelo.h"
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31
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32 /*
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33 calibration default values
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34 values are read from the following environment variables:
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35
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36 SDL_ELO_MIN_X
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37 SDL_ELO_MAX_X
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38 SDL_ELO_MIN_Y
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39 SDL_ELO_MAX_Y
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40 */
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41
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42 static int ELO_MIN_X = 400;
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43 static int ELO_MAX_X = 3670;
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44 static int ELO_MIN_Y = 500;
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45 static int ELO_MAX_Y = 3540;
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46
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47 #define ELO_SNAP_SIZE 6
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48 #define ELO_TOUCH_BYTE 'T'
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49 #define ELO_ID 'I'
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50 #define ELO_MODE 'M'
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51 #define ELO_PARAMETER 'P'
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52 #define ELO_REPORT 'B'
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53 #define ELO_ACK 'A'
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54
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55 #define ELO_INIT_CHECKSUM 0xAA
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56
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57 #define ELO_BTN_PRESS 0x01
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58 #define ELO_STREAM 0x02
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59 #define ELO_BTN_RELEASE 0x04
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60
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61 #define ELO_TOUCH_MODE 0x01
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62 #define ELO_STREAM_MODE 0x02
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63 #define ELO_UNTOUCH_MODE 0x04
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64 #define ELO_RANGE_CHECK_MODE 0x40
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65 #define ELO_TRIM_MODE 0x02
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66 #define ELO_CALIB_MODE 0x04
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67 #define ELO_SCALING_MODE 0x08
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68 #define ELO_TRACKING_MODE 0x40
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69
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70 #define ELO_SERIAL_MASK 0xF8
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71
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72 #define ELO_SERIAL_IO '0'
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73
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74 #define ELO_MAX_TRIALS 3
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75 #define ELO_MAX_WAIT 100000
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76 #define ELO_UNTOUCH_DELAY 5
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77 #define ELO_REPORT_DELAY 1
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78
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79 /* eloParsePacket
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80 */
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81 int
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82 eloParsePacket(unsigned char *mousebuf, int *dx, int *dy, int *button_state)
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83 {
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84 static int elo_button = 0;
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85 static int last_x = 0;
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86 static int last_y = 0;
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87 int x, y;
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88
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89 /* Check if we have a touch packet */
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90 if (mousebuf[1] != ELO_TOUCH_BYTE) {
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91 return 0;
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92 }
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93
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94 x = ((mousebuf[4] << 8) | mousebuf[3]);
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95 y = ((mousebuf[6] << 8) | mousebuf[5]);
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96
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97 if ((SDL_abs(x - last_x) > ELO_SNAP_SIZE)
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98 || (SDL_abs(y - last_y) > ELO_SNAP_SIZE)) {
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99 *dx = ((mousebuf[4] << 8) | mousebuf[3]);
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100 *dy = ((mousebuf[6] << 8) | mousebuf[5]);
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101 } else {
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102 *dx = last_x;
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103 *dy = last_y;
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104 }
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105
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106 last_x = *dx;
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107 last_y = *dy;
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108
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109 if ((mousebuf[2] & 0x07) == ELO_BTN_PRESS) {
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110 elo_button = 1;
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111 }
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112 if ((mousebuf[2] & 0x07) == ELO_BTN_RELEASE) {
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113 elo_button = 0;
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114 }
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115
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116 *button_state = elo_button;
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117 return 1;
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118 }
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119
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120 /* Convert the raw coordinates from the ELO controller
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121 to a screen position.
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122 */
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123 void
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124 eloConvertXY(_THIS, int *dx, int *dy)
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125 {
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126 int input_x = *dx;
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127 int input_y = *dy;
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128 int width = ELO_MAX_X - ELO_MIN_X;
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129 int height = ELO_MAX_Y - ELO_MIN_Y;
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130
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131 *dx =
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132 ((int) cache_vinfo.xres -
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133 ((int) cache_vinfo.xres * (input_x - ELO_MIN_X)) / width);
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134 *dy = (cache_vinfo.yres * (input_y - ELO_MIN_Y)) / height;
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135 }
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136
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137
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138 /* eloGetPacket
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139 */
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140 int
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141 eloGetPacket(unsigned char *buffer, int *buffer_p, int *checksum, int fd)
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142 {
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143 int num_bytes;
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144 int ok;
0
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145
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146 if (fd == 0) {
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147 num_bytes = ELO_PACKET_SIZE;
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148 } else {
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149 num_bytes = read(fd,
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150 (char *) (buffer + *buffer_p),
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151 ELO_PACKET_SIZE - *buffer_p);
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152 }
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153
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154 if (num_bytes < 0) {
0
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155 #ifdef DEBUG_MOUSE
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156 fprintf(stderr,
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157 "System error while reading from Elographics touchscreen.\n");
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158 #endif
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159 return 0;
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160 }
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161
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162 while (num_bytes) {
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163 if ((*buffer_p == 0) && (buffer[0] != ELO_START_BYTE)) {
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164 SDL_memcpy(&buffer[0], &buffer[1], num_bytes - 1);
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165 } else {
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166 if (*buffer_p < ELO_PACKET_SIZE - 1) {
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167 *checksum = *checksum + buffer[*buffer_p];
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168 *checksum = *checksum % 256;
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169 }
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170 (*buffer_p)++;
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171 }
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172 num_bytes--;
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173 }
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174
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175 if (*buffer_p == ELO_PACKET_SIZE) {
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176 ok = (*checksum == buffer[ELO_PACKET_SIZE - 1]);
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177 *checksum = ELO_INIT_CHECKSUM;
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178 *buffer_p = 0;
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179
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180 if (!ok) {
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181 return 0;
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182 }
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183
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184 return 1;
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185 } else {
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186 return 0;
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187 }
0
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188 }
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189
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190 /* eloSendPacket
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191 */
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192
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193 int
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194 eloSendPacket(unsigned char *packet, int fd)
0
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195 {
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196 int i, result;
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197 int sum = ELO_INIT_CHECKSUM;
0
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198
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199 packet[0] = ELO_START_BYTE;
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200 for (i = 0; i < ELO_PACKET_SIZE - 1; i++) {
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201 sum += packet[i];
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202 sum &= 0xFF;
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203 }
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204 packet[ELO_PACKET_SIZE - 1] = sum;
0
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205
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206 result = write(fd, packet, ELO_PACKET_SIZE);
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207
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208 if (result != ELO_PACKET_SIZE) {
0
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209 #ifdef DEBUG_MOUSE
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210 printf("System error while sending to Elographics touchscreen.\n");
0
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211 #endif
1895
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212 return 0;
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213 } else {
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214 return 1;
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215 }
0
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216 }
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217
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218
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219 /* eloWaitForInput
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220 */
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221 int
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222 eloWaitForInput(int fd, int timeout)
0
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223 {
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224 fd_set readfds;
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225 struct timeval to;
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226 int r;
0
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227
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228 FD_ZERO(&readfds);
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229 FD_SET(fd, &readfds);
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230 to.tv_sec = 0;
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231 to.tv_usec = timeout;
0
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232
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233 r = select(FD_SETSIZE, &readfds, NULL, NULL, &to);
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234 return r;
0
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235 }
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236
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237 /* eloWaitReply
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238 */
1895
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239 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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240 eloWaitReply(unsigned char type, unsigned char *reply, int fd)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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241 {
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242 int ok;
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diff changeset
243 int i, result;
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244 int reply_p = 0;
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245 int sum = ELO_INIT_CHECKSUM;
0
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246
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247 i = ELO_MAX_TRIALS;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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248 do {
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249 ok = 0;
0
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250
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251 result = eloWaitForInput(fd, ELO_MAX_WAIT);
0
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diff changeset
252
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253 if (result > 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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254 ok = eloGetPacket(reply, &reply_p, &sum, fd);
0
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255
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diff changeset
256 if (ok && reply[1] != type && type != ELO_PARAMETER) {
0
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diff changeset
257 #ifdef DEBUG_MOUSE
1895
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258 fprintf(stderr, "Wrong reply received\n");
0
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diff changeset
259 #endif
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260 ok = 0;
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261 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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262 } else {
0
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263 #ifdef DEBUG_MOUSE
1895
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264 fprintf(stderr, "No input!\n");
0
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diff changeset
265 #endif
1895
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266 }
0
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267
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268 if (result == 0) {
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269 i--;
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270 }
2735
204be4fc2726 Final merge of Google Summer of Code 2008 work...
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271 } while (!ok && (i > 0));
0
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272
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273 return ok;
0
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274 }
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275
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276
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diff changeset
277 /* eloWaitAck
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diff changeset
278 */
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279
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280 int
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281 eloWaitAck(int fd)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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282 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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283 unsigned char packet[ELO_PACKET_SIZE];
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284 int i, nb_errors;
0
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285
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
286 if (eloWaitReply(ELO_ACK, packet, fd)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1402
diff changeset
287 for (i = 0, nb_errors = 0; i < 4; i++) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
288 if (packet[2 + i] != '0') {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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289 nb_errors++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
290 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
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291 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
292
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
293 if (nb_errors != 0) {
0
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294 #ifdef DEBUG_MOUSE
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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295 fprintf(stderr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
296 "Elographics acknowledge packet reports %d errors\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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297 nb_errors);
0
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diff changeset
298 #endif
1895
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diff changeset
299 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
300 return 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
301 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
302 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
303 }
0
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diff changeset
304 }
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parents:
diff changeset
305
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parents:
diff changeset
306
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parents:
diff changeset
307 /* eloSendQuery --
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parents:
diff changeset
308 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
309 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
310 eloSendQuery(unsigned char *request, unsigned char *reply, int fd)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
311 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
312 int ok;
0
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313
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diff changeset
314 if (eloSendPacket(request, fd)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
315 ok = eloWaitReply(toupper(request[1]), reply, fd);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1402
diff changeset
316 if (ok) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
317 ok = eloWaitAck(fd);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
318 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
319 return ok;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
320 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
321 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
322 }
0
74212992fb08 Initial revision
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parents:
diff changeset
323 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
324
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
325
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
326 /* eloSendControl
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parents:
diff changeset
327 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
328 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
329 eloSendControl(unsigned char *control, int fd)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
330 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
331 if (eloSendPacket(control, fd)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
332 return eloWaitAck(fd);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
333 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
334 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
335 }
0
74212992fb08 Initial revision
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parents:
diff changeset
336 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
337
74212992fb08 Initial revision
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parents:
diff changeset
338 /* eloInitController
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parents:
diff changeset
339 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
340 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
341 eloInitController(int fd)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
342 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
343 unsigned char req[ELO_PACKET_SIZE];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
344 unsigned char reply[ELO_PACKET_SIZE];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
345 const char *buffer = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
346 int result = 0;
0
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diff changeset
347
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1402
diff changeset
348 struct termios mouse_termios;
0
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diff changeset
349
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
350 /* try to read the calibration values */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
351 buffer = SDL_getenv("SDL_ELO_MIN_X");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
352 if (buffer) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
353 ELO_MIN_X = SDL_atoi(buffer);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
354 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
355 buffer = SDL_getenv("SDL_ELO_MAX_X");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
356 if (buffer) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
357 ELO_MAX_X = SDL_atoi(buffer);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
358 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
359 buffer = SDL_getenv("SDL_ELO_MIN_Y");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
360 if (buffer) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
361 ELO_MIN_Y = SDL_atoi(buffer);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
362 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
363 buffer = SDL_getenv("SDL_ELO_MAX_Y");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
364 if (buffer) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
365 ELO_MAX_Y = SDL_atoi(buffer);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
366 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
367 #ifdef DEBUG_MOUSE
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
368 fprintf(stderr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
369 "ELO calibration values:\nmin_x: %i\nmax_x: %i\nmin_y: %i\nmax_y: %i\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
370 ELO_MIN_X, ELO_MAX_X, ELO_MIN_Y, ELO_MAX_Y);
0
74212992fb08 Initial revision
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parents:
diff changeset
371 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
372
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
373 /* set comm params */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
374 SDL_memset(&mouse_termios, 0, sizeof(mouse_termios));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
375 mouse_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
376 mouse_termios.c_cc[VMIN] = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
377 result = tcsetattr(fd, TCSANOW, &mouse_termios);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
378
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
379 if (result < 0) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
380 #ifdef DEBUG_MOUSE
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
381 fprintf(stderr, "Unable to configure Elographics touchscreen port\n");
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
382 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
383 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
384 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
385
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
386 SDL_memset(req, 0, ELO_PACKET_SIZE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
387 req[1] = tolower(ELO_PARAMETER);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
388 if (!eloSendQuery(req, reply, fd)) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
389 #ifdef DEBUG_MOUSE
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
390 fprintf(stderr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
391 "Not at the specified rate or model 2310, will continue\n");
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
392 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
393 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
395 SDL_memset(req, 0, ELO_PACKET_SIZE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
396 req[1] = tolower(ELO_ID);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
397 if (eloSendQuery(req, reply, fd)) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
398 #ifdef DEBUG_MOUSE
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
399 fprintf(stderr, "Ok, controller configured!\n");
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
400 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
401 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402 #ifdef DEBUG_MOUSE
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
403 fprintf(stderr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
404 "Unable to ask Elographics touchscreen identification\n");
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
405 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
406 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
407 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
408
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
409 SDL_memset(req, 0, ELO_PACKET_SIZE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
410 req[1] = ELO_MODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
411 req[3] = ELO_TOUCH_MODE | ELO_STREAM_MODE | ELO_UNTOUCH_MODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
412 req[4] = ELO_TRACKING_MODE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
413 if (!eloSendControl(req, fd)) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
414 #ifdef DEBUG_MOUSE
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
415 fprintf(stderr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
416 "Unable to change Elographics touchscreen operating mode\n");
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
417 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
418 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
419 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
420
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
421 SDL_memset(req, 0, ELO_PACKET_SIZE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
422 req[1] = ELO_REPORT;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
423 req[2] = ELO_UNTOUCH_DELAY;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
424 req[3] = ELO_REPORT_DELAY;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
425 if (!eloSendControl(req, fd)) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
426 #ifdef DEBUG_MOUSE
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1402
diff changeset
427 fprintf(stderr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
428 "Unable to change Elographics touchscreen reports timings\n");
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
429 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1402
diff changeset
430 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
431 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
432
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
433 return 1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
434 }
4
4f6c5f021323 Date: Thu, 26 Apr 2001 10:46:23 +0200
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
435
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
436 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
437 eloReadPosition(_THIS, int fd, int *x, int *y, int *button_state, int *realx,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
438 int *realy)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
439 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
440 unsigned char buffer[ELO_PACKET_SIZE];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
441 int pointer = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
442 int checksum = ELO_INIT_CHECKSUM;
4
4f6c5f021323 Date: Thu, 26 Apr 2001 10:46:23 +0200
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
443
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
444 while (pointer < ELO_PACKET_SIZE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
445 if (eloGetPacket(buffer, &pointer, &checksum, fd)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
446 break;
4
4f6c5f021323 Date: Thu, 26 Apr 2001 10:46:23 +0200
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
447 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
448 }
4
4f6c5f021323 Date: Thu, 26 Apr 2001 10:46:23 +0200
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
449
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
450 if (!eloParsePacket(buffer, realx, realy, button_state)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
451 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
452 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
453
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
454 *x = *realx;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
455 *y = *realy;
4
4f6c5f021323 Date: Thu, 26 Apr 2001 10:46:23 +0200
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
456
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
457 eloConvertXY(this, x, y);
4
4f6c5f021323 Date: Thu, 26 Apr 2001 10:46:23 +0200
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
458
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
459 return 1;
4
4f6c5f021323 Date: Thu, 26 Apr 2001 10:46:23 +0200
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
460 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
461
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
462 /* vi: set ts=4 sw=4 expandtab: */