aurel32 | 2e4d9fb | 2008-04-08 06:01:02 +0000 | [diff] [blame] | 1 | /* |
| 2 | * QEMU Baum Braille Device |
| 3 | * |
| 4 | * Copyright (c) 2008 Samuel Thibault |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
| 24 | #include "qemu-common.h" |
| 25 | #include "qemu-char.h" |
| 26 | #include "qemu-timer.h" |
| 27 | #include "usb.h" |
| 28 | #include <assert.h> |
| 29 | #include <brlapi.h> |
| 30 | #include <brlapi_constants.h> |
| 31 | #include <brlapi_keycodes.h> |
| 32 | #ifdef CONFIG_SDL |
| 33 | #include <SDL/SDL_syswm.h> |
| 34 | #endif |
| 35 | |
| 36 | #if 0 |
| 37 | #define DPRINTF(fmt, ...) \ |
| 38 | printf(fmt, ## __VA_ARGS__) |
| 39 | #else |
| 40 | #define DPRINTF(fmt, ...) |
| 41 | #endif |
| 42 | |
| 43 | #define ESC 0x1B |
| 44 | |
| 45 | #define BAUM_REQ_DisplayData 0x01 |
| 46 | #define BAUM_REQ_GetVersionNumber 0x05 |
| 47 | #define BAUM_REQ_GetKeys 0x08 |
| 48 | #define BAUM_REQ_SetMode 0x12 |
| 49 | #define BAUM_REQ_SetProtocol 0x15 |
| 50 | #define BAUM_REQ_GetDeviceIdentity 0x84 |
| 51 | #define BAUM_REQ_GetSerialNumber 0x8A |
| 52 | |
| 53 | #define BAUM_RSP_CellCount 0x01 |
| 54 | #define BAUM_RSP_VersionNumber 0x05 |
| 55 | #define BAUM_RSP_ModeSetting 0x11 |
| 56 | #define BAUM_RSP_CommunicationChannel 0x16 |
| 57 | #define BAUM_RSP_PowerdownSignal 0x17 |
| 58 | #define BAUM_RSP_HorizontalSensors 0x20 |
| 59 | #define BAUM_RSP_VerticalSensors 0x21 |
| 60 | #define BAUM_RSP_RoutingKeys 0x22 |
| 61 | #define BAUM_RSP_Switches 0x23 |
| 62 | #define BAUM_RSP_TopKeys 0x24 |
| 63 | #define BAUM_RSP_HorizontalSensor 0x25 |
| 64 | #define BAUM_RSP_VerticalSensor 0x26 |
| 65 | #define BAUM_RSP_RoutingKey 0x27 |
| 66 | #define BAUM_RSP_FrontKeys6 0x28 |
| 67 | #define BAUM_RSP_BackKeys6 0x29 |
| 68 | #define BAUM_RSP_CommandKeys 0x2B |
| 69 | #define BAUM_RSP_FrontKeys10 0x2C |
| 70 | #define BAUM_RSP_BackKeys10 0x2D |
| 71 | #define BAUM_RSP_EntryKeys 0x33 |
| 72 | #define BAUM_RSP_JoyStick 0x34 |
| 73 | #define BAUM_RSP_ErrorCode 0x40 |
| 74 | #define BAUM_RSP_InfoBlock 0x42 |
| 75 | #define BAUM_RSP_DeviceIdentity 0x84 |
| 76 | #define BAUM_RSP_SerialNumber 0x8A |
| 77 | #define BAUM_RSP_BluetoothName 0x8C |
| 78 | |
| 79 | #define BAUM_TL1 0x01 |
| 80 | #define BAUM_TL2 0x02 |
| 81 | #define BAUM_TL3 0x04 |
| 82 | #define BAUM_TR1 0x08 |
| 83 | #define BAUM_TR2 0x10 |
| 84 | #define BAUM_TR3 0x20 |
| 85 | |
| 86 | #define BUF_SIZE 256 |
| 87 | |
| 88 | typedef struct { |
| 89 | CharDriverState *chr; |
| 90 | |
| 91 | brlapi_handle_t *brlapi; |
| 92 | int brlapi_fd; |
| 93 | int x, y; |
| 94 | |
| 95 | uint8_t in_buf[BUF_SIZE]; |
| 96 | uint8_t in_buf_used; |
| 97 | uint8_t out_buf[BUF_SIZE]; |
| 98 | uint8_t out_buf_used, out_buf_ptr; |
| 99 | |
| 100 | QEMUTimer *cellCount_timer; |
| 101 | } BaumDriverState; |
| 102 | |
| 103 | /* Let's assume NABCC by default */ |
| 104 | static const uint8_t nabcc_translation[256] = { |
| 105 | [0] = ' ', |
| 106 | #ifndef BRLAPI_DOTS |
| 107 | #define BRLAPI_DOTS(d1,d2,d3,d4,d5,d6,d7,d8) \ |
| 108 | ((d1?BRLAPI_DOT1:0)|\ |
| 109 | (d2?BRLAPI_DOT2:0)|\ |
| 110 | (d3?BRLAPI_DOT3:0)|\ |
| 111 | (d4?BRLAPI_DOT4:0)|\ |
| 112 | (d5?BRLAPI_DOT5:0)|\ |
| 113 | (d6?BRLAPI_DOT6:0)|\ |
| 114 | (d7?BRLAPI_DOT7:0)|\ |
| 115 | (d8?BRLAPI_DOT8:0)) |
| 116 | #endif |
| 117 | [BRLAPI_DOTS(1,0,0,0,0,0,0,0)] = 'a', |
| 118 | [BRLAPI_DOTS(1,1,0,0,0,0,0,0)] = 'b', |
| 119 | [BRLAPI_DOTS(1,0,0,1,0,0,0,0)] = 'c', |
| 120 | [BRLAPI_DOTS(1,0,0,1,1,0,0,0)] = 'd', |
| 121 | [BRLAPI_DOTS(1,0,0,0,1,0,0,0)] = 'e', |
| 122 | [BRLAPI_DOTS(1,1,0,1,0,0,0,0)] = 'f', |
| 123 | [BRLAPI_DOTS(1,1,0,1,1,0,0,0)] = 'g', |
| 124 | [BRLAPI_DOTS(1,1,0,0,1,0,0,0)] = 'h', |
| 125 | [BRLAPI_DOTS(0,1,0,1,0,0,0,0)] = 'i', |
| 126 | [BRLAPI_DOTS(0,1,0,1,1,0,0,0)] = 'j', |
| 127 | [BRLAPI_DOTS(1,0,1,0,0,0,0,0)] = 'k', |
| 128 | [BRLAPI_DOTS(1,1,1,0,0,0,0,0)] = 'l', |
| 129 | [BRLAPI_DOTS(1,0,1,1,0,0,0,0)] = 'm', |
| 130 | [BRLAPI_DOTS(1,0,1,1,1,0,0,0)] = 'n', |
| 131 | [BRLAPI_DOTS(1,0,1,0,1,0,0,0)] = 'o', |
| 132 | [BRLAPI_DOTS(1,1,1,1,0,0,0,0)] = 'p', |
| 133 | [BRLAPI_DOTS(1,1,1,1,1,0,0,0)] = 'q', |
| 134 | [BRLAPI_DOTS(1,1,1,0,1,0,0,0)] = 'r', |
| 135 | [BRLAPI_DOTS(0,1,1,1,0,0,0,0)] = 's', |
| 136 | [BRLAPI_DOTS(0,1,1,1,1,0,0,0)] = 't', |
| 137 | [BRLAPI_DOTS(1,0,1,0,0,1,0,0)] = 'u', |
| 138 | [BRLAPI_DOTS(1,1,1,0,0,1,0,0)] = 'v', |
| 139 | [BRLAPI_DOTS(0,1,0,1,1,1,0,0)] = 'w', |
| 140 | [BRLAPI_DOTS(1,0,1,1,0,1,0,0)] = 'x', |
| 141 | [BRLAPI_DOTS(1,0,1,1,1,1,0,0)] = 'y', |
| 142 | [BRLAPI_DOTS(1,0,1,0,1,1,0,0)] = 'z', |
| 143 | |
| 144 | [BRLAPI_DOTS(1,0,0,0,0,0,1,0)] = 'A', |
| 145 | [BRLAPI_DOTS(1,1,0,0,0,0,1,0)] = 'B', |
| 146 | [BRLAPI_DOTS(1,0,0,1,0,0,1,0)] = 'C', |
| 147 | [BRLAPI_DOTS(1,0,0,1,1,0,1,0)] = 'D', |
| 148 | [BRLAPI_DOTS(1,0,0,0,1,0,1,0)] = 'E', |
| 149 | [BRLAPI_DOTS(1,1,0,1,0,0,1,0)] = 'F', |
| 150 | [BRLAPI_DOTS(1,1,0,1,1,0,1,0)] = 'G', |
| 151 | [BRLAPI_DOTS(1,1,0,0,1,0,1,0)] = 'H', |
| 152 | [BRLAPI_DOTS(0,1,0,1,0,0,1,0)] = 'I', |
| 153 | [BRLAPI_DOTS(0,1,0,1,1,0,1,0)] = 'J', |
| 154 | [BRLAPI_DOTS(1,0,1,0,0,0,1,0)] = 'K', |
| 155 | [BRLAPI_DOTS(1,1,1,0,0,0,1,0)] = 'L', |
| 156 | [BRLAPI_DOTS(1,0,1,1,0,0,1,0)] = 'M', |
| 157 | [BRLAPI_DOTS(1,0,1,1,1,0,1,0)] = 'N', |
| 158 | [BRLAPI_DOTS(1,0,1,0,1,0,1,0)] = 'O', |
| 159 | [BRLAPI_DOTS(1,1,1,1,0,0,1,0)] = 'P', |
| 160 | [BRLAPI_DOTS(1,1,1,1,1,0,1,0)] = 'Q', |
| 161 | [BRLAPI_DOTS(1,1,1,0,1,0,1,0)] = 'R', |
| 162 | [BRLAPI_DOTS(0,1,1,1,0,0,1,0)] = 'S', |
| 163 | [BRLAPI_DOTS(0,1,1,1,1,0,1,0)] = 'T', |
| 164 | [BRLAPI_DOTS(1,0,1,0,0,1,1,0)] = 'U', |
| 165 | [BRLAPI_DOTS(1,1,1,0,0,1,1,0)] = 'V', |
| 166 | [BRLAPI_DOTS(0,1,0,1,1,1,1,0)] = 'W', |
| 167 | [BRLAPI_DOTS(1,0,1,1,0,1,1,0)] = 'X', |
| 168 | [BRLAPI_DOTS(1,0,1,1,1,1,1,0)] = 'Y', |
| 169 | [BRLAPI_DOTS(1,0,1,0,1,1,1,0)] = 'Z', |
| 170 | |
| 171 | [BRLAPI_DOTS(0,0,1,0,1,1,0,0)] = '0', |
| 172 | [BRLAPI_DOTS(0,1,0,0,0,0,0,0)] = '1', |
| 173 | [BRLAPI_DOTS(0,1,1,0,0,0,0,0)] = '2', |
| 174 | [BRLAPI_DOTS(0,1,0,0,1,0,0,0)] = '3', |
| 175 | [BRLAPI_DOTS(0,1,0,0,1,1,0,0)] = '4', |
| 176 | [BRLAPI_DOTS(0,1,0,0,0,1,0,0)] = '5', |
| 177 | [BRLAPI_DOTS(0,1,1,0,1,0,0,0)] = '6', |
| 178 | [BRLAPI_DOTS(0,1,1,0,1,1,0,0)] = '7', |
| 179 | [BRLAPI_DOTS(0,1,1,0,0,1,0,0)] = '8', |
| 180 | [BRLAPI_DOTS(0,0,1,0,1,0,0,0)] = '9', |
| 181 | |
| 182 | [BRLAPI_DOTS(0,0,0,1,0,1,0,0)] = '.', |
| 183 | [BRLAPI_DOTS(0,0,1,1,0,1,0,0)] = '+', |
| 184 | [BRLAPI_DOTS(0,0,1,0,0,1,0,0)] = '-', |
| 185 | [BRLAPI_DOTS(1,0,0,0,0,1,0,0)] = '*', |
| 186 | [BRLAPI_DOTS(0,0,1,1,0,0,0,0)] = '/', |
| 187 | [BRLAPI_DOTS(1,1,1,0,1,1,0,0)] = '(', |
| 188 | [BRLAPI_DOTS(0,1,1,1,1,1,0,0)] = ')', |
| 189 | |
| 190 | [BRLAPI_DOTS(1,1,1,1,0,1,0,0)] = '&', |
| 191 | [BRLAPI_DOTS(0,0,1,1,1,1,0,0)] = '#', |
| 192 | |
| 193 | [BRLAPI_DOTS(0,0,0,0,0,1,0,0)] = ',', |
| 194 | [BRLAPI_DOTS(0,0,0,0,1,1,0,0)] = ';', |
| 195 | [BRLAPI_DOTS(1,0,0,0,1,1,0,0)] = ':', |
| 196 | [BRLAPI_DOTS(0,1,1,1,0,1,0,0)] = '!', |
| 197 | [BRLAPI_DOTS(1,0,0,1,1,1,0,0)] = '?', |
| 198 | [BRLAPI_DOTS(0,0,0,0,1,0,0,0)] = '"', |
| 199 | [BRLAPI_DOTS(0,0,1,0,0,0,0,0)] ='\'', |
| 200 | [BRLAPI_DOTS(0,0,0,1,0,0,0,0)] = '`', |
| 201 | [BRLAPI_DOTS(0,0,0,1,1,0,1,0)] = '^', |
| 202 | [BRLAPI_DOTS(0,0,0,1,1,0,0,0)] = '~', |
| 203 | [BRLAPI_DOTS(0,1,0,1,0,1,1,0)] = '[', |
| 204 | [BRLAPI_DOTS(1,1,0,1,1,1,1,0)] = ']', |
| 205 | [BRLAPI_DOTS(0,1,0,1,0,1,0,0)] = '{', |
| 206 | [BRLAPI_DOTS(1,1,0,1,1,1,0,0)] = '}', |
| 207 | [BRLAPI_DOTS(1,1,1,1,1,1,0,0)] = '=', |
| 208 | [BRLAPI_DOTS(1,1,0,0,0,1,0,0)] = '<', |
| 209 | [BRLAPI_DOTS(0,0,1,1,1,0,0,0)] = '>', |
| 210 | [BRLAPI_DOTS(1,1,0,1,0,1,0,0)] = '$', |
| 211 | [BRLAPI_DOTS(1,0,0,1,0,1,0,0)] = '%', |
| 212 | [BRLAPI_DOTS(0,0,0,1,0,0,1,0)] = '@', |
| 213 | [BRLAPI_DOTS(1,1,0,0,1,1,0,0)] = '|', |
| 214 | [BRLAPI_DOTS(1,1,0,0,1,1,1,0)] ='\\', |
| 215 | [BRLAPI_DOTS(0,0,0,1,1,1,0,0)] = '_', |
| 216 | }; |
| 217 | |
| 218 | /* The serial port can receive more of our data */ |
| 219 | static void baum_accept_input(struct CharDriverState *chr) |
| 220 | { |
| 221 | BaumDriverState *baum = chr->opaque; |
| 222 | int room, first; |
| 223 | |
| 224 | if (!baum->out_buf_used) |
| 225 | return; |
| 226 | room = qemu_chr_can_read(chr); |
| 227 | if (!room) |
| 228 | return; |
| 229 | if (room > baum->out_buf_used) |
| 230 | room = baum->out_buf_used; |
| 231 | |
| 232 | first = BUF_SIZE - baum->out_buf_ptr; |
| 233 | if (room > first) { |
| 234 | qemu_chr_read(chr, baum->out_buf + baum->out_buf_ptr, first); |
| 235 | baum->out_buf_ptr = 0; |
| 236 | baum->out_buf_used -= first; |
| 237 | room -= first; |
| 238 | } |
| 239 | qemu_chr_read(chr, baum->out_buf + baum->out_buf_ptr, room); |
| 240 | baum->out_buf_ptr += room; |
| 241 | baum->out_buf_used -= room; |
| 242 | } |
| 243 | |
| 244 | /* We want to send a packet */ |
| 245 | static void baum_write_packet(BaumDriverState *baum, const uint8_t *buf, int len) |
| 246 | { |
| 247 | uint8_t io_buf[1 + 2 * len], *cur = io_buf; |
| 248 | int room; |
| 249 | *cur++ = ESC; |
| 250 | while (len--) |
| 251 | if ((*cur++ = *buf++) == ESC) |
| 252 | *cur++ = ESC; |
| 253 | room = qemu_chr_can_read(baum->chr); |
| 254 | len = cur - io_buf; |
| 255 | if (len <= room) { |
| 256 | /* Fits */ |
| 257 | qemu_chr_read(baum->chr, io_buf, len); |
| 258 | } else { |
| 259 | int first; |
| 260 | uint8_t out; |
| 261 | /* Can't fit all, send what can be, and store the rest. */ |
| 262 | qemu_chr_read(baum->chr, io_buf, room); |
| 263 | len -= room; |
| 264 | cur = io_buf + room; |
| 265 | if (len > BUF_SIZE - baum->out_buf_used) { |
| 266 | /* Can't even store it, drop the previous data... */ |
| 267 | assert(len <= BUF_SIZE); |
| 268 | baum->out_buf_used = 0; |
| 269 | baum->out_buf_ptr = 0; |
| 270 | } |
| 271 | out = baum->out_buf_ptr; |
| 272 | baum->out_buf_used += len; |
| 273 | first = BUF_SIZE - baum->out_buf_ptr; |
| 274 | if (len > first) { |
| 275 | memcpy(baum->out_buf + out, cur, first); |
| 276 | out = 0; |
| 277 | len -= first; |
| 278 | cur += first; |
| 279 | } |
| 280 | memcpy(baum->out_buf + out, cur, len); |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | /* Called when the other end seems to have a wrong idea of our display size */ |
| 285 | static void baum_cellCount_timer_cb(void *opaque) |
| 286 | { |
| 287 | BaumDriverState *baum = opaque; |
| 288 | uint8_t cell_count[] = { BAUM_RSP_CellCount, baum->x * baum->y }; |
| 289 | DPRINTF("Timeout waiting for DisplayData, sending cell count\n"); |
| 290 | baum_write_packet(baum, cell_count, sizeof(cell_count)); |
| 291 | } |
| 292 | |
| 293 | /* Try to interpret a whole incoming packet */ |
| 294 | static int baum_eat_packet(BaumDriverState *baum, const uint8_t *buf, int len) |
| 295 | { |
| 296 | const uint8_t *cur = buf; |
| 297 | uint8_t req = 0; |
| 298 | |
| 299 | if (!len--) |
| 300 | return 0; |
| 301 | if (*cur++ != ESC) { |
| 302 | while (*cur != ESC) { |
| 303 | if (!len--) |
| 304 | return 0; |
| 305 | cur++; |
| 306 | } |
| 307 | DPRINTF("Dropped %d bytes!\n", cur - buf); |
| 308 | } |
| 309 | |
| 310 | #define EAT(c) do {\ |
| 311 | if (!len--) \ |
| 312 | return 0; \ |
| 313 | if ((c = *cur++) == ESC) { \ |
| 314 | if (!len--) \ |
| 315 | return 0; \ |
| 316 | if (*cur++ != ESC) { \ |
| 317 | DPRINTF("Broken packet %#2x, tossing\n", req); \ |
| 318 | if (qemu_timer_pending(baum->cellCount_timer)) { \ |
| 319 | qemu_del_timer(baum->cellCount_timer); \ |
| 320 | baum_cellCount_timer_cb(baum); \ |
| 321 | } \ |
| 322 | return (cur - 2 - buf); \ |
| 323 | } \ |
| 324 | } \ |
| 325 | } while (0) |
| 326 | |
| 327 | EAT(req); |
| 328 | switch (req) { |
| 329 | case BAUM_REQ_DisplayData: |
| 330 | { |
| 331 | uint8_t cells[baum->x * baum->y], c; |
| 332 | uint8_t text[baum->x * baum->y]; |
| 333 | uint8_t zero[baum->x * baum->y]; |
| 334 | int cursor = BRLAPI_CURSOR_OFF; |
| 335 | int i; |
| 336 | |
| 337 | /* Allow 100ms to complete the DisplayData packet */ |
| 338 | qemu_mod_timer(baum->cellCount_timer, qemu_get_clock(vm_clock) + ticks_per_sec / 10); |
| 339 | for (i = 0; i < baum->x * baum->y ; i++) { |
| 340 | EAT(c); |
| 341 | cells[i] = c; |
| 342 | if ((c & (BRLAPI_DOT7|BRLAPI_DOT8)) |
| 343 | == (BRLAPI_DOT7|BRLAPI_DOT8)) { |
| 344 | cursor = i + 1; |
| 345 | c &= ~(BRLAPI_DOT7|BRLAPI_DOT8); |
| 346 | } |
| 347 | if (!(c = nabcc_translation[c])) |
| 348 | c = '?'; |
| 349 | text[i] = c; |
| 350 | } |
| 351 | qemu_del_timer(baum->cellCount_timer); |
| 352 | |
| 353 | memset(zero, 0, sizeof(zero)); |
| 354 | |
| 355 | brlapi_writeArguments_t wa = { |
| 356 | .displayNumber = BRLAPI_DISPLAY_DEFAULT, |
| 357 | .regionBegin = 1, |
| 358 | .regionSize = baum->x * baum->y, |
| 359 | .text = text, |
| 360 | .textSize = baum->x * baum->y, |
| 361 | .andMask = zero, |
| 362 | .orMask = cells, |
| 363 | .cursor = cursor, |
| 364 | .charset = "ISO-8859-1", |
| 365 | }; |
| 366 | |
| 367 | if (brlapi__write(baum->brlapi, &wa) == -1) |
| 368 | brlapi_perror("baum brlapi_write"); |
| 369 | break; |
| 370 | } |
| 371 | case BAUM_REQ_SetMode: |
| 372 | { |
| 373 | uint8_t mode, setting; |
| 374 | DPRINTF("SetMode\n"); |
| 375 | EAT(mode); |
| 376 | EAT(setting); |
| 377 | /* ignore */ |
| 378 | break; |
| 379 | } |
| 380 | case BAUM_REQ_SetProtocol: |
| 381 | { |
| 382 | uint8_t protocol; |
| 383 | DPRINTF("SetProtocol\n"); |
| 384 | EAT(protocol); |
| 385 | /* ignore */ |
| 386 | break; |
| 387 | } |
| 388 | case BAUM_REQ_GetDeviceIdentity: |
| 389 | { |
| 390 | uint8_t identity[17] = { BAUM_RSP_DeviceIdentity, |
| 391 | 'B','a','u','m',' ','V','a','r','i','o' }; |
| 392 | DPRINTF("GetDeviceIdentity\n"); |
| 393 | identity[11] = '0' + baum->x / 10; |
| 394 | identity[12] = '0' + baum->x % 10; |
| 395 | baum_write_packet(baum, identity, sizeof(identity)); |
| 396 | break; |
| 397 | } |
| 398 | case BAUM_REQ_GetVersionNumber: |
| 399 | { |
| 400 | uint8_t version[] = { BAUM_RSP_VersionNumber, 1 }; /* ? */ |
| 401 | DPRINTF("GetVersionNumber\n"); |
| 402 | baum_write_packet(baum, version, sizeof(version)); |
| 403 | break; |
| 404 | } |
| 405 | case BAUM_REQ_GetSerialNumber: |
| 406 | { |
| 407 | uint8_t serial[] = { BAUM_RSP_SerialNumber, |
| 408 | '0','0','0','0','0','0','0','0' }; |
| 409 | DPRINTF("GetSerialNumber\n"); |
| 410 | baum_write_packet(baum, serial, sizeof(serial)); |
| 411 | break; |
| 412 | } |
| 413 | case BAUM_REQ_GetKeys: |
| 414 | { |
| 415 | DPRINTF("Get%0#2x\n", req); |
| 416 | /* ignore */ |
| 417 | break; |
| 418 | } |
| 419 | default: |
| 420 | DPRINTF("unrecognized request %0#2x\n", req); |
| 421 | do |
| 422 | if (!len--) |
| 423 | return 0; |
| 424 | while (*cur++ != ESC); |
| 425 | cur--; |
| 426 | break; |
| 427 | } |
| 428 | return cur - buf; |
| 429 | } |
| 430 | |
| 431 | /* The other end is writing some data. Store it and try to interpret */ |
| 432 | static int baum_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 433 | { |
| 434 | BaumDriverState *baum = chr->opaque; |
| 435 | int tocopy, cur, eaten, orig_len = len; |
| 436 | |
| 437 | if (!len) |
| 438 | return 0; |
| 439 | if (!baum->brlapi) |
| 440 | return len; |
| 441 | |
| 442 | while (len) { |
| 443 | /* Complete our buffer as much as possible */ |
| 444 | tocopy = len; |
| 445 | if (tocopy > BUF_SIZE - baum->in_buf_used) |
| 446 | tocopy = BUF_SIZE - baum->in_buf_used; |
| 447 | |
| 448 | memcpy(baum->in_buf + baum->in_buf_used, buf, tocopy); |
| 449 | baum->in_buf_used += tocopy; |
| 450 | buf += tocopy; |
| 451 | len -= tocopy; |
| 452 | |
| 453 | /* Interpret it as much as possible */ |
| 454 | cur = 0; |
| 455 | while (cur < baum->in_buf_used && |
| 456 | (eaten = baum_eat_packet(baum, baum->in_buf + cur, baum->in_buf_used - cur))) |
| 457 | cur += eaten; |
| 458 | |
| 459 | /* Shift the remainder */ |
| 460 | if (cur) { |
| 461 | memmove(baum->in_buf, baum->in_buf + cur, baum->in_buf_used - cur); |
| 462 | baum->in_buf_used -= cur; |
| 463 | } |
| 464 | |
| 465 | /* And continue if any data left */ |
| 466 | } |
| 467 | return orig_len; |
| 468 | } |
| 469 | |
| 470 | /* The other end sent us some event */ |
| 471 | static void baum_send_event(CharDriverState *chr, int event) |
| 472 | { |
| 473 | BaumDriverState *baum = chr->opaque; |
| 474 | switch (event) { |
| 475 | case CHR_EVENT_BREAK: |
| 476 | break; |
| 477 | case CHR_EVENT_RESET: |
| 478 | /* Reset state */ |
| 479 | baum->in_buf_used = 0; |
| 480 | break; |
| 481 | } |
| 482 | } |
| 483 | |
| 484 | /* Send the key code to the other end */ |
| 485 | static void baum_send_key(BaumDriverState *baum, uint8_t type, uint8_t value) { |
| 486 | uint8_t packet[] = { type, value }; |
| 487 | DPRINTF("writing key %x %x\n", type, value); |
| 488 | baum_write_packet(baum, packet, sizeof(packet)); |
| 489 | } |
| 490 | |
| 491 | /* We got some data on the BrlAPI socket */ |
| 492 | static void baum_chr_read(void *opaque) |
| 493 | { |
| 494 | BaumDriverState *baum = opaque; |
| 495 | brlapi_keyCode_t code; |
| 496 | int ret; |
| 497 | if (!baum->brlapi) |
| 498 | return; |
| 499 | while ((ret = brlapi__readKey(baum->brlapi, 0, &code)) == 1) { |
| 500 | DPRINTF("got key %"BRLAPI_PRIxKEYCODE"\n", code); |
| 501 | /* Emulate */ |
| 502 | switch (code & BRLAPI_KEY_TYPE_MASK) { |
| 503 | case BRLAPI_KEY_TYPE_CMD: |
| 504 | switch (code & BRLAPI_KEY_CMD_BLK_MASK) { |
| 505 | case BRLAPI_KEY_CMD_ROUTE: |
| 506 | baum_send_key(baum, BAUM_RSP_RoutingKey, (code & BRLAPI_KEY_CMD_ARG_MASK)+1); |
| 507 | baum_send_key(baum, BAUM_RSP_RoutingKey, 0); |
| 508 | break; |
| 509 | case 0: |
| 510 | switch (code & BRLAPI_KEY_CMD_ARG_MASK) { |
| 511 | case BRLAPI_KEY_CMD_FWINLT: |
| 512 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2); |
| 513 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); |
| 514 | break; |
| 515 | case BRLAPI_KEY_CMD_FWINRT: |
| 516 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR2); |
| 517 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); |
| 518 | break; |
| 519 | case BRLAPI_KEY_CMD_LNUP: |
| 520 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR1); |
| 521 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); |
| 522 | break; |
| 523 | case BRLAPI_KEY_CMD_LNDN: |
| 524 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR3); |
| 525 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); |
| 526 | break; |
| 527 | case BRLAPI_KEY_CMD_TOP: |
| 528 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL1|BAUM_TR1); |
| 529 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); |
| 530 | break; |
| 531 | case BRLAPI_KEY_CMD_BOT: |
| 532 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL3|BAUM_TR3); |
| 533 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); |
| 534 | break; |
| 535 | case BRLAPI_KEY_CMD_TOP_LEFT: |
| 536 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR1); |
| 537 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); |
| 538 | break; |
| 539 | case BRLAPI_KEY_CMD_BOT_LEFT: |
| 540 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR3); |
| 541 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); |
| 542 | break; |
| 543 | case BRLAPI_KEY_CMD_HOME: |
| 544 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR1|BAUM_TR3); |
| 545 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); |
| 546 | break; |
| 547 | case BRLAPI_KEY_CMD_PREFMENU: |
| 548 | baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL1|BAUM_TL3|BAUM_TR1); |
| 549 | baum_send_key(baum, BAUM_RSP_TopKeys, 0); |
| 550 | break; |
| 551 | } |
| 552 | } |
| 553 | break; |
| 554 | case BRLAPI_KEY_TYPE_SYM: |
| 555 | break; |
| 556 | } |
| 557 | } |
| 558 | if (ret == -1 && (brlapi_errno != BRLAPI_ERROR_LIBCERR || errno != EINTR)) { |
| 559 | brlapi_perror("baum: brlapi_readKey"); |
| 560 | brlapi__closeConnection(baum->brlapi); |
| 561 | free(baum->brlapi); |
| 562 | baum->brlapi = NULL; |
| 563 | } |
| 564 | } |
| 565 | |
| 566 | CharDriverState *chr_baum_init(void) |
| 567 | { |
| 568 | BaumDriverState *baum; |
| 569 | CharDriverState *chr; |
| 570 | brlapi_handle_t *handle; |
| 571 | #ifdef CONFIG_SDL |
| 572 | SDL_SysWMinfo info; |
| 573 | #endif |
| 574 | int tty; |
| 575 | |
| 576 | baum = qemu_mallocz(sizeof(BaumDriverState)); |
| 577 | if (!baum) |
| 578 | return NULL; |
| 579 | |
| 580 | baum->chr = chr = qemu_mallocz(sizeof(CharDriverState)); |
| 581 | if (!chr) |
| 582 | goto fail_baum; |
| 583 | |
| 584 | chr->opaque = baum; |
| 585 | chr->chr_write = baum_write; |
| 586 | chr->chr_send_event = baum_send_event; |
| 587 | chr->chr_accept_input = baum_accept_input; |
| 588 | |
| 589 | handle = qemu_mallocz(brlapi_getHandleSize()); |
| 590 | if (!handle) |
| 591 | goto fail_chr; |
| 592 | baum->brlapi = handle; |
| 593 | |
| 594 | baum->brlapi_fd = brlapi__openConnection(handle, NULL, NULL); |
| 595 | if (baum->brlapi_fd == -1) { |
| 596 | brlapi_perror("baum_init: brlapi_openConnection"); |
| 597 | goto fail_handle; |
| 598 | } |
| 599 | |
| 600 | baum->cellCount_timer = qemu_new_timer(vm_clock, baum_cellCount_timer_cb, baum); |
| 601 | |
| 602 | if (brlapi__getDisplaySize(handle, &baum->x, &baum->y) == -1) { |
| 603 | brlapi_perror("baum_init: brlapi_getDisplaySize"); |
| 604 | goto fail; |
| 605 | } |
| 606 | |
| 607 | #ifdef CONFIG_SDL |
| 608 | memset(&info, 0, sizeof(info)); |
| 609 | SDL_VERSION(&info.version); |
| 610 | if (SDL_GetWMInfo(&info)) |
| 611 | tty = info.info.x11.wmwindow; |
| 612 | else |
| 613 | #endif |
| 614 | tty = BRLAPI_TTY_DEFAULT; |
| 615 | |
| 616 | if (brlapi__enterTtyMode(handle, tty, NULL) == -1) { |
| 617 | brlapi_perror("baum_init: brlapi_enterTtyMode"); |
| 618 | goto fail; |
| 619 | } |
| 620 | |
| 621 | qemu_set_fd_handler(baum->brlapi_fd, baum_chr_read, NULL, baum); |
| 622 | |
| 623 | qemu_chr_reset(chr); |
| 624 | |
| 625 | return chr; |
| 626 | |
| 627 | fail: |
| 628 | qemu_free_timer(baum->cellCount_timer); |
| 629 | brlapi__closeConnection(handle); |
| 630 | fail_handle: |
| 631 | free(handle); |
| 632 | fail_chr: |
| 633 | free(chr); |
| 634 | fail_baum: |
| 635 | free(baum); |
| 636 | return NULL; |
| 637 | } |
| 638 | |
| 639 | USBDevice *usb_baum_init(void) |
| 640 | { |
| 641 | /* USB Product ID of Super Vario 40 */ |
| 642 | return usb_serial_init("productid=FE72:braille"); |
| 643 | } |