| 1 | /* |
| 2 | * |
| 3 | * Copyright (c) 2003 Gerd Knorr |
| 4 | * Copyright (c) 2003 Pavel Machek |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | #include <linux/module.h> |
| 22 | #include <linux/moduleparam.h> |
| 23 | #include <linux/init.h> |
| 24 | #include <linux/delay.h> |
| 25 | #include <linux/interrupt.h> |
| 26 | #include <linux/input.h> |
| 27 | #include <linux/pci.h> |
| 28 | |
| 29 | #include "bttv.h" |
| 30 | #include <media/ir-common.h> |
| 31 | |
| 32 | /* ---------------------------------------------------------------------- */ |
| 33 | |
| 34 | static IR_KEYTAB_TYPE ir_codes_avermedia[IR_KEYTAB_SIZE] = { |
| 35 | [ 34 ] = KEY_KP0, |
| 36 | [ 40 ] = KEY_KP1, |
| 37 | [ 24 ] = KEY_KP2, |
| 38 | [ 56 ] = KEY_KP3, |
| 39 | [ 36 ] = KEY_KP4, |
| 40 | [ 20 ] = KEY_KP5, |
| 41 | [ 52 ] = KEY_KP6, |
| 42 | [ 44 ] = KEY_KP7, |
| 43 | [ 28 ] = KEY_KP8, |
| 44 | [ 60 ] = KEY_KP9, |
| 45 | |
| 46 | [ 48 ] = KEY_EJECTCD, // Unmarked on my controller |
| 47 | [ 0 ] = KEY_POWER, |
| 48 | [ 18 ] = BTN_LEFT, // DISPLAY/L |
| 49 | [ 50 ] = BTN_RIGHT, // LOOP/R |
| 50 | [ 10 ] = KEY_MUTE, |
| 51 | [ 38 ] = KEY_RECORD, |
| 52 | [ 22 ] = KEY_PAUSE, |
| 53 | [ 54 ] = KEY_STOP, |
| 54 | [ 30 ] = KEY_VOLUMEDOWN, |
| 55 | [ 62 ] = KEY_VOLUMEUP, |
| 56 | |
| 57 | [ 32 ] = KEY_TUNER, // TV/FM |
| 58 | [ 16 ] = KEY_CD, |
| 59 | [ 8 ] = KEY_VIDEO, |
| 60 | [ 4 ] = KEY_AUDIO, |
| 61 | [ 12 ] = KEY_ZOOM, // full screen |
| 62 | [ 2 ] = KEY_INFO, // preview |
| 63 | [ 42 ] = KEY_SEARCH, // autoscan |
| 64 | [ 26 ] = KEY_STOP, // freeze |
| 65 | [ 58 ] = KEY_RECORD, // capture |
| 66 | [ 6 ] = KEY_PLAY, // unmarked |
| 67 | [ 46 ] = KEY_RED, // unmarked |
| 68 | [ 14 ] = KEY_GREEN, // unmarked |
| 69 | |
| 70 | [ 33 ] = KEY_YELLOW, // unmarked |
| 71 | [ 17 ] = KEY_CHANNELDOWN, |
| 72 | [ 49 ] = KEY_CHANNELUP, |
| 73 | [ 1 ] = KEY_BLUE, // unmarked |
| 74 | }; |
| 75 | |
| 76 | /* Matt Jesson <dvb@jesson.eclipse.co.uk */ |
| 77 | static IR_KEYTAB_TYPE ir_codes_avermedia_dvbt[IR_KEYTAB_SIZE] = { |
| 78 | [ 0x28 ] = KEY_KP0, //'0' / 'enter' |
| 79 | [ 0x22 ] = KEY_KP1, //'1' |
| 80 | [ 0x12 ] = KEY_KP2, //'2' / 'up arrow' |
| 81 | [ 0x32 ] = KEY_KP3, //'3' |
| 82 | [ 0x24 ] = KEY_KP4, //'4' / 'left arrow' |
| 83 | [ 0x14 ] = KEY_KP5, //'5' |
| 84 | [ 0x34 ] = KEY_KP6, //'6' / 'right arrow' |
| 85 | [ 0x26 ] = KEY_KP7, //'7' |
| 86 | [ 0x16 ] = KEY_KP8, //'8' / 'down arrow' |
| 87 | [ 0x36 ] = KEY_KP9, //'9' |
| 88 | |
| 89 | [ 0x20 ] = KEY_LIST, // 'source' |
| 90 | [ 0x10 ] = KEY_TEXT, // 'teletext' |
| 91 | [ 0x00 ] = KEY_POWER, // 'power' |
| 92 | [ 0x04 ] = KEY_AUDIO, // 'audio' |
| 93 | [ 0x06 ] = KEY_ZOOM, // 'full screen' |
| 94 | [ 0x18 ] = KEY_VIDEO, // 'display' |
| 95 | [ 0x38 ] = KEY_SEARCH, // 'loop' |
| 96 | [ 0x08 ] = KEY_INFO, // 'preview' |
| 97 | [ 0x2a ] = KEY_REWIND, // 'backward <<' |
| 98 | [ 0x1a ] = KEY_FASTFORWARD, // 'forward >>' |
| 99 | [ 0x3a ] = KEY_RECORD, // 'capture' |
| 100 | [ 0x0a ] = KEY_MUTE, // 'mute' |
| 101 | [ 0x2c ] = KEY_RECORD, // 'record' |
| 102 | [ 0x1c ] = KEY_PAUSE, // 'pause' |
| 103 | [ 0x3c ] = KEY_STOP, // 'stop' |
| 104 | [ 0x0c ] = KEY_PLAY, // 'play' |
| 105 | [ 0x2e ] = KEY_RED, // 'red' |
| 106 | [ 0x01 ] = KEY_BLUE, // 'blue' / 'cancel' |
| 107 | [ 0x0e ] = KEY_YELLOW, // 'yellow' / 'ok' |
| 108 | [ 0x21 ] = KEY_GREEN, // 'green' |
| 109 | [ 0x11 ] = KEY_CHANNELDOWN, // 'channel -' |
| 110 | [ 0x31 ] = KEY_CHANNELUP, // 'channel +' |
| 111 | [ 0x1e ] = KEY_VOLUMEDOWN, // 'volume -' |
| 112 | [ 0x3e ] = KEY_VOLUMEUP, // 'volume +' |
| 113 | }; |
| 114 | |
| 115 | /* Attila Kondoros <attila.kondoros@chello.hu> */ |
| 116 | static IR_KEYTAB_TYPE ir_codes_apac_viewcomp[IR_KEYTAB_SIZE] = { |
| 117 | |
| 118 | [ 1 ] = KEY_KP1, |
| 119 | [ 2 ] = KEY_KP2, |
| 120 | [ 3 ] = KEY_KP3, |
| 121 | [ 4 ] = KEY_KP4, |
| 122 | [ 5 ] = KEY_KP5, |
| 123 | [ 6 ] = KEY_KP6, |
| 124 | [ 7 ] = KEY_KP7, |
| 125 | [ 8 ] = KEY_KP8, |
| 126 | [ 9 ] = KEY_KP9, |
| 127 | [ 0 ] = KEY_KP0, |
| 128 | [ 23 ] = KEY_LAST, // +100 |
| 129 | [ 10 ] = KEY_LIST, // recall |
| 130 | |
| 131 | |
| 132 | [ 28 ] = KEY_TUNER, // TV/FM |
| 133 | [ 21 ] = KEY_SEARCH, // scan |
| 134 | [ 18 ] = KEY_POWER, // power |
| 135 | [ 31 ] = KEY_VOLUMEDOWN, // vol up |
| 136 | [ 27 ] = KEY_VOLUMEUP, // vol down |
| 137 | [ 30 ] = KEY_CHANNELDOWN, // chn up |
| 138 | [ 26 ] = KEY_CHANNELUP, // chn down |
| 139 | |
| 140 | [ 17 ] = KEY_VIDEO, // video |
| 141 | [ 15 ] = KEY_ZOOM, // full screen |
| 142 | [ 19 ] = KEY_MUTE, // mute/unmute |
| 143 | [ 16 ] = KEY_TEXT, // min |
| 144 | |
| 145 | [ 13 ] = KEY_STOP, // freeze |
| 146 | [ 14 ] = KEY_RECORD, // record |
| 147 | [ 29 ] = KEY_PLAYPAUSE, // stop |
| 148 | [ 25 ] = KEY_PLAY, // play |
| 149 | |
| 150 | [ 22 ] = KEY_GOTO, // osd |
| 151 | [ 20 ] = KEY_REFRESH, // default |
| 152 | [ 12 ] = KEY_KPPLUS, // fine tune >>>> |
| 153 | [ 24 ] = KEY_KPMINUS // fine tune <<<< |
| 154 | }; |
| 155 | |
| 156 | /* ---------------------------------------------------------------------- */ |
| 157 | |
| 158 | /* Ricardo Cerqueira <v4l@cerqueira.org> */ |
| 159 | /* Weird matching, since the remote has "uncommon" keys */ |
| 160 | |
| 161 | static IR_KEYTAB_TYPE ir_codes_conceptronic[IR_KEYTAB_SIZE] = { |
| 162 | |
| 163 | [ 30 ] = KEY_POWER, // power |
| 164 | [ 7 ] = KEY_MEDIA, // source |
| 165 | [ 28 ] = KEY_SEARCH, // scan |
| 166 | |
| 167 | /* FIXME: duplicate keycodes? |
| 168 | * |
| 169 | * These four keys seem to share the same GPIO as CH+, CH-, <<< and >>> |
| 170 | * The GPIO values are |
| 171 | * 6397fb for both "Scan <" and "CH -", |
| 172 | * 639ffb for "Scan >" and "CH+", |
| 173 | * 6384fb for "Tune <" and "<<<", |
| 174 | * 638cfb for "Tune >" and ">>>", regardless of the mask. |
| 175 | * |
| 176 | * [ 23 ] = KEY_BACK, // fm scan << |
| 177 | * [ 31 ] = KEY_FORWARD, // fm scan >> |
| 178 | * |
| 179 | * [ 4 ] = KEY_LEFT, // fm tuning < |
| 180 | * [ 12 ] = KEY_RIGHT, // fm tuning > |
| 181 | * |
| 182 | * For now, these four keys are disabled. Pressing them will generate |
| 183 | * the CH+/CH-/<<</>>> events |
| 184 | */ |
| 185 | |
| 186 | [ 3 ] = KEY_TUNER, // TV/FM |
| 187 | |
| 188 | [ 0 ] = KEY_RECORD, |
| 189 | [ 8 ] = KEY_STOP, |
| 190 | [ 17 ] = KEY_PLAY, |
| 191 | |
| 192 | [ 26 ] = KEY_PLAYPAUSE, // freeze |
| 193 | [ 25 ] = KEY_ZOOM, // zoom |
| 194 | [ 15 ] = KEY_TEXT, // min |
| 195 | |
| 196 | [ 1 ] = KEY_KP1, |
| 197 | [ 11 ] = KEY_KP2, |
| 198 | [ 27 ] = KEY_KP3, |
| 199 | [ 5 ] = KEY_KP4, |
| 200 | [ 9 ] = KEY_KP5, |
| 201 | [ 21 ] = KEY_KP6, |
| 202 | [ 6 ] = KEY_KP7, |
| 203 | [ 10 ] = KEY_KP8, |
| 204 | [ 18 ] = KEY_KP9, |
| 205 | [ 2 ] = KEY_KP0, |
| 206 | [ 16 ] = KEY_LAST, // +100 |
| 207 | [ 19 ] = KEY_LIST, // recall |
| 208 | |
| 209 | [ 31 ] = KEY_CHANNELUP, // chn down |
| 210 | [ 23 ] = KEY_CHANNELDOWN, // chn up |
| 211 | [ 22 ] = KEY_VOLUMEUP, // vol down |
| 212 | [ 20 ] = KEY_VOLUMEDOWN, // vol up |
| 213 | |
| 214 | [ 4 ] = KEY_KPMINUS, // <<< |
| 215 | [ 14 ] = KEY_SETUP, // function |
| 216 | [ 12 ] = KEY_KPPLUS, // >>> |
| 217 | |
| 218 | [ 13 ] = KEY_GOTO, // mts |
| 219 | [ 29 ] = KEY_REFRESH, // reset |
| 220 | [ 24 ] = KEY_MUTE // mute/unmute |
| 221 | }; |
| 222 | |
| 223 | static IR_KEYTAB_TYPE ir_codes_nebula[IR_KEYTAB_SIZE] = { |
| 224 | [0x00] = KEY_KP0, |
| 225 | [0x01] = KEY_KP1, |
| 226 | [0x02] = KEY_KP2, |
| 227 | [0x03] = KEY_KP3, |
| 228 | [0x04] = KEY_KP4, |
| 229 | [0x05] = KEY_KP5, |
| 230 | [0x06] = KEY_KP6, |
| 231 | [0x07] = KEY_KP7, |
| 232 | [0x08] = KEY_KP8, |
| 233 | [0x09] = KEY_KP9, |
| 234 | [0x0a] = KEY_TV, |
| 235 | [0x0b] = KEY_AUX, |
| 236 | [0x0c] = KEY_DVD, |
| 237 | [0x0d] = KEY_POWER, |
| 238 | [0x0e] = KEY_MHP, /* labelled 'Picture' */ |
| 239 | [0x0f] = KEY_AUDIO, |
| 240 | [0x10] = KEY_INFO, |
| 241 | [0x11] = KEY_F13, /* 16:9 */ |
| 242 | [0x12] = KEY_F14, /* 14:9 */ |
| 243 | [0x13] = KEY_EPG, |
| 244 | [0x14] = KEY_EXIT, |
| 245 | [0x15] = KEY_MENU, |
| 246 | [0x16] = KEY_UP, |
| 247 | [0x17] = KEY_DOWN, |
| 248 | [0x18] = KEY_LEFT, |
| 249 | [0x19] = KEY_RIGHT, |
| 250 | [0x1a] = KEY_ENTER, |
| 251 | [0x1b] = KEY_CHANNELUP, |
| 252 | [0x1c] = KEY_CHANNELDOWN, |
| 253 | [0x1d] = KEY_VOLUMEUP, |
| 254 | [0x1e] = KEY_VOLUMEDOWN, |
| 255 | [0x1f] = KEY_RED, |
| 256 | [0x20] = KEY_GREEN, |
| 257 | [0x21] = KEY_YELLOW, |
| 258 | [0x22] = KEY_BLUE, |
| 259 | [0x23] = KEY_SUBTITLE, |
| 260 | [0x24] = KEY_F15, /* AD */ |
| 261 | [0x25] = KEY_TEXT, |
| 262 | [0x26] = KEY_MUTE, |
| 263 | [0x27] = KEY_REWIND, |
| 264 | [0x28] = KEY_STOP, |
| 265 | [0x29] = KEY_PLAY, |
| 266 | [0x2a] = KEY_FASTFORWARD, |
| 267 | [0x2b] = KEY_F16, /* chapter */ |
| 268 | [0x2c] = KEY_PAUSE, |
| 269 | [0x2d] = KEY_PLAY, |
| 270 | [0x2e] = KEY_RECORD, |
| 271 | [0x2f] = KEY_F17, /* picture in picture */ |
| 272 | [0x30] = KEY_KPPLUS, /* zoom in */ |
| 273 | [0x31] = KEY_KPMINUS, /* zoom out */ |
| 274 | [0x32] = KEY_F18, /* capture */ |
| 275 | [0x33] = KEY_F19, /* web */ |
| 276 | [0x34] = KEY_EMAIL, |
| 277 | [0x35] = KEY_PHONE, |
| 278 | [0x36] = KEY_PC |
| 279 | }; |
| 280 | |
| 281 | struct IR { |
| 282 | struct bttv_sub_device *sub; |
| 283 | struct input_dev *input; |
| 284 | struct ir_input_state ir; |
| 285 | char name[32]; |
| 286 | char phys[32]; |
| 287 | |
| 288 | /* Usual gpio signalling */ |
| 289 | |
| 290 | u32 mask_keycode; |
| 291 | u32 mask_keydown; |
| 292 | u32 mask_keyup; |
| 293 | u32 polling; |
| 294 | u32 last_gpio; |
| 295 | struct work_struct work; |
| 296 | struct timer_list timer; |
| 297 | |
| 298 | /* RC5 gpio */ |
| 299 | u32 rc5_gpio; |
| 300 | struct timer_list timer_end; /* timer_end for code completion */ |
| 301 | struct timer_list timer_keyup; /* timer_end for key release */ |
| 302 | u32 last_rc5; /* last good rc5 code */ |
| 303 | u32 last_bit; /* last raw bit seen */ |
| 304 | u32 code; /* raw code under construction */ |
| 305 | struct timeval base_time; /* time of last seen code */ |
| 306 | int active; /* building raw code */ |
| 307 | }; |
| 308 | |
| 309 | static int debug; |
| 310 | module_param(debug, int, 0644); /* debug level (0,1,2) */ |
| 311 | static int repeat_delay = 500; |
| 312 | module_param(repeat_delay, int, 0644); |
| 313 | static int repeat_period = 33; |
| 314 | module_param(repeat_period, int, 0644); |
| 315 | |
| 316 | #define DEVNAME "ir-kbd-gpio" |
| 317 | #define dprintk(fmt, arg...) if (debug) \ |
| 318 | printk(KERN_DEBUG DEVNAME ": " fmt , ## arg) |
| 319 | |
| 320 | static void ir_irq(struct bttv_sub_device *sub); |
| 321 | static int ir_probe(struct device *dev); |
| 322 | static int ir_remove(struct device *dev); |
| 323 | |
| 324 | static struct bttv_sub_driver driver = { |
| 325 | .drv = { |
| 326 | .name = DEVNAME, |
| 327 | .probe = ir_probe, |
| 328 | .remove = ir_remove, |
| 329 | }, |
| 330 | .gpio_irq = ir_irq, |
| 331 | }; |
| 332 | |
| 333 | /* ---------------------------------------------------------------------- */ |
| 334 | |
| 335 | static void ir_handle_key(struct IR *ir) |
| 336 | { |
| 337 | u32 gpio,data; |
| 338 | |
| 339 | /* read gpio value */ |
| 340 | gpio = bttv_gpio_read(ir->sub->core); |
| 341 | if (ir->polling) { |
| 342 | if (ir->last_gpio == gpio) |
| 343 | return; |
| 344 | ir->last_gpio = gpio; |
| 345 | } |
| 346 | |
| 347 | /* extract data */ |
| 348 | data = ir_extract_bits(gpio, ir->mask_keycode); |
| 349 | dprintk(DEVNAME ": irq gpio=0x%x code=%d | %s%s%s\n", |
| 350 | gpio, data, |
| 351 | ir->polling ? "poll" : "irq", |
| 352 | (gpio & ir->mask_keydown) ? " down" : "", |
| 353 | (gpio & ir->mask_keyup) ? " up" : ""); |
| 354 | |
| 355 | if (ir->mask_keydown) { |
| 356 | /* bit set on keydown */ |
| 357 | if (gpio & ir->mask_keydown) { |
| 358 | ir_input_keydown(ir->input, &ir->ir, data, data); |
| 359 | } else { |
| 360 | ir_input_nokey(ir->input, &ir->ir); |
| 361 | } |
| 362 | |
| 363 | } else if (ir->mask_keyup) { |
| 364 | /* bit cleared on keydown */ |
| 365 | if (0 == (gpio & ir->mask_keyup)) { |
| 366 | ir_input_keydown(ir->input, &ir->ir, data, data); |
| 367 | } else { |
| 368 | ir_input_nokey(ir->input, &ir->ir); |
| 369 | } |
| 370 | |
| 371 | } else { |
| 372 | /* can't disturgissh keydown/up :-/ */ |
| 373 | ir_input_keydown(ir->input, &ir->ir, data, data); |
| 374 | ir_input_nokey(ir->input, &ir->ir); |
| 375 | } |
| 376 | } |
| 377 | |
| 378 | static void ir_irq(struct bttv_sub_device *sub) |
| 379 | { |
| 380 | struct IR *ir = dev_get_drvdata(&sub->dev); |
| 381 | |
| 382 | if (!ir->polling) |
| 383 | ir_handle_key(ir); |
| 384 | } |
| 385 | |
| 386 | static void ir_timer(unsigned long data) |
| 387 | { |
| 388 | struct IR *ir = (struct IR*)data; |
| 389 | |
| 390 | schedule_work(&ir->work); |
| 391 | } |
| 392 | |
| 393 | static void ir_work(void *data) |
| 394 | { |
| 395 | struct IR *ir = data; |
| 396 | unsigned long timeout; |
| 397 | |
| 398 | ir_handle_key(ir); |
| 399 | timeout = jiffies + (ir->polling * HZ / 1000); |
| 400 | mod_timer(&ir->timer, timeout); |
| 401 | } |
| 402 | |
| 403 | /* ---------------------------------------------------------------*/ |
| 404 | |
| 405 | static int rc5_remote_gap = 885; |
| 406 | module_param(rc5_remote_gap, int, 0644); |
| 407 | static int rc5_key_timeout = 200; |
| 408 | module_param(rc5_key_timeout, int, 0644); |
| 409 | |
| 410 | #define RC5_START(x) (((x)>>12)&3) |
| 411 | #define RC5_TOGGLE(x) (((x)>>11)&1) |
| 412 | #define RC5_ADDR(x) (((x)>>6)&31) |
| 413 | #define RC5_INSTR(x) ((x)&63) |
| 414 | |
| 415 | /* decode raw bit pattern to RC5 code */ |
| 416 | static u32 rc5_decode(unsigned int code) |
| 417 | { |
| 418 | unsigned int org_code = code; |
| 419 | unsigned int pair; |
| 420 | unsigned int rc5 = 0; |
| 421 | int i; |
| 422 | |
| 423 | code = (code << 1) | 1; |
| 424 | for (i = 0; i < 14; ++i) { |
| 425 | pair = code & 0x3; |
| 426 | code >>= 2; |
| 427 | |
| 428 | rc5 <<= 1; |
| 429 | switch (pair) { |
| 430 | case 0: |
| 431 | case 2: |
| 432 | break; |
| 433 | case 1: |
| 434 | rc5 |= 1; |
| 435 | break; |
| 436 | case 3: |
| 437 | dprintk("bad code: %x\n", org_code); |
| 438 | return 0; |
| 439 | } |
| 440 | } |
| 441 | dprintk("code=%x, rc5=%x, start=%x, toggle=%x, address=%x, " |
| 442 | "instr=%x\n", rc5, org_code, RC5_START(rc5), |
| 443 | RC5_TOGGLE(rc5), RC5_ADDR(rc5), RC5_INSTR(rc5)); |
| 444 | return rc5; |
| 445 | } |
| 446 | |
| 447 | static int ir_rc5_irq(struct bttv_sub_device *sub) |
| 448 | { |
| 449 | struct IR *ir = dev_get_drvdata(&sub->dev); |
| 450 | struct timeval tv; |
| 451 | u32 gpio; |
| 452 | u32 gap; |
| 453 | unsigned long current_jiffies, timeout; |
| 454 | |
| 455 | /* read gpio port */ |
| 456 | gpio = bttv_gpio_read(ir->sub->core); |
| 457 | |
| 458 | /* remote IRQ? */ |
| 459 | if (!(gpio & 0x20)) |
| 460 | return 0; |
| 461 | |
| 462 | /* get time of bit */ |
| 463 | current_jiffies = jiffies; |
| 464 | do_gettimeofday(&tv); |
| 465 | |
| 466 | /* avoid overflow with gap >1s */ |
| 467 | if (tv.tv_sec - ir->base_time.tv_sec > 1) { |
| 468 | gap = 200000; |
| 469 | } else { |
| 470 | gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) + |
| 471 | tv.tv_usec - ir->base_time.tv_usec; |
| 472 | } |
| 473 | |
| 474 | /* active code => add bit */ |
| 475 | if (ir->active) { |
| 476 | /* only if in the code (otherwise spurious IRQ or timer |
| 477 | late) */ |
| 478 | if (ir->last_bit < 28) { |
| 479 | ir->last_bit = (gap - rc5_remote_gap / 2) / |
| 480 | rc5_remote_gap; |
| 481 | ir->code |= 1 << ir->last_bit; |
| 482 | } |
| 483 | /* starting new code */ |
| 484 | } else { |
| 485 | ir->active = 1; |
| 486 | ir->code = 0; |
| 487 | ir->base_time = tv; |
| 488 | ir->last_bit = 0; |
| 489 | |
| 490 | timeout = current_jiffies + (500 + 30 * HZ) / 1000; |
| 491 | mod_timer(&ir->timer_end, timeout); |
| 492 | } |
| 493 | |
| 494 | /* toggle GPIO pin 4 to reset the irq */ |
| 495 | bttv_gpio_write(ir->sub->core, gpio & ~(1 << 4)); |
| 496 | bttv_gpio_write(ir->sub->core, gpio | (1 << 4)); |
| 497 | return 1; |
| 498 | } |
| 499 | |
| 500 | static void ir_rc5_timer_end(unsigned long data) |
| 501 | { |
| 502 | struct IR *ir = (struct IR *)data; |
| 503 | struct timeval tv; |
| 504 | unsigned long current_jiffies, timeout; |
| 505 | u32 gap; |
| 506 | |
| 507 | /* get time */ |
| 508 | current_jiffies = jiffies; |
| 509 | do_gettimeofday(&tv); |
| 510 | |
| 511 | /* avoid overflow with gap >1s */ |
| 512 | if (tv.tv_sec - ir->base_time.tv_sec > 1) { |
| 513 | gap = 200000; |
| 514 | } else { |
| 515 | gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) + |
| 516 | tv.tv_usec - ir->base_time.tv_usec; |
| 517 | } |
| 518 | |
| 519 | /* Allow some timmer jitter (RC5 is ~24ms anyway so this is ok) */ |
| 520 | if (gap < 28000) { |
| 521 | dprintk("spurious timer_end\n"); |
| 522 | return; |
| 523 | } |
| 524 | |
| 525 | ir->active = 0; |
| 526 | if (ir->last_bit < 20) { |
| 527 | /* ignore spurious codes (caused by light/other remotes) */ |
| 528 | dprintk("short code: %x\n", ir->code); |
| 529 | } else { |
| 530 | u32 rc5 = rc5_decode(ir->code); |
| 531 | |
| 532 | /* two start bits? */ |
| 533 | if (RC5_START(rc5) != 3) { |
| 534 | dprintk("rc5 start bits invalid: %u\n", RC5_START(rc5)); |
| 535 | |
| 536 | /* right address? */ |
| 537 | } else if (RC5_ADDR(rc5) == 0x0) { |
| 538 | u32 toggle = RC5_TOGGLE(rc5); |
| 539 | u32 instr = RC5_INSTR(rc5); |
| 540 | |
| 541 | /* Good code, decide if repeat/repress */ |
| 542 | if (toggle != RC5_TOGGLE(ir->last_rc5) || |
| 543 | instr != RC5_INSTR(ir->last_rc5)) { |
| 544 | dprintk("instruction %x, toggle %x\n", instr, |
| 545 | toggle); |
| 546 | ir_input_nokey(ir->input, &ir->ir); |
| 547 | ir_input_keydown(ir->input, &ir->ir, instr, |
| 548 | instr); |
| 549 | } |
| 550 | |
| 551 | /* Set/reset key-up timer */ |
| 552 | timeout = current_jiffies + (500 + rc5_key_timeout |
| 553 | * HZ) / 1000; |
| 554 | mod_timer(&ir->timer_keyup, timeout); |
| 555 | |
| 556 | /* Save code for repeat test */ |
| 557 | ir->last_rc5 = rc5; |
| 558 | } |
| 559 | } |
| 560 | } |
| 561 | |
| 562 | static void ir_rc5_timer_keyup(unsigned long data) |
| 563 | { |
| 564 | struct IR *ir = (struct IR *)data; |
| 565 | |
| 566 | dprintk("key released\n"); |
| 567 | ir_input_nokey(ir->input, &ir->ir); |
| 568 | } |
| 569 | |
| 570 | /* ---------------------------------------------------------------------- */ |
| 571 | |
| 572 | static int ir_probe(struct device *dev) |
| 573 | { |
| 574 | struct bttv_sub_device *sub = to_bttv_sub_dev(dev); |
| 575 | struct IR *ir; |
| 576 | struct input_dev *input_dev; |
| 577 | IR_KEYTAB_TYPE *ir_codes = NULL; |
| 578 | int ir_type = IR_TYPE_OTHER; |
| 579 | |
| 580 | ir = kzalloc(sizeof(*ir), GFP_KERNEL); |
| 581 | input_dev = input_allocate_device(); |
| 582 | if (!ir || !input_dev) { |
| 583 | kfree(ir); |
| 584 | input_free_device(input_dev); |
| 585 | return -ENOMEM; |
| 586 | } |
| 587 | |
| 588 | /* detect & configure */ |
| 589 | switch (sub->core->type) { |
| 590 | case BTTV_BOARD_AVERMEDIA: |
| 591 | case BTTV_BOARD_AVPHONE98: |
| 592 | case BTTV_BOARD_AVERMEDIA98: |
| 593 | ir_codes = ir_codes_avermedia; |
| 594 | ir->mask_keycode = 0xf88000; |
| 595 | ir->mask_keydown = 0x010000; |
| 596 | ir->polling = 50; // ms |
| 597 | break; |
| 598 | |
| 599 | case BTTV_BOARD_AVDVBT_761: |
| 600 | case BTTV_BOARD_AVDVBT_771: |
| 601 | ir_codes = ir_codes_avermedia_dvbt; |
| 602 | ir->mask_keycode = 0x0f00c0; |
| 603 | ir->mask_keydown = 0x000020; |
| 604 | ir->polling = 50; // ms |
| 605 | break; |
| 606 | |
| 607 | case BTTV_BOARD_PXELVWPLTVPAK: |
| 608 | ir_codes = ir_codes_pixelview; |
| 609 | ir->mask_keycode = 0x003e00; |
| 610 | ir->mask_keyup = 0x010000; |
| 611 | ir->polling = 50; // ms |
| 612 | break; |
| 613 | case BTTV_BOARD_PV_BT878P_9B: |
| 614 | case BTTV_BOARD_PV_BT878P_PLUS: |
| 615 | ir_codes = ir_codes_pixelview; |
| 616 | ir->mask_keycode = 0x001f00; |
| 617 | ir->mask_keyup = 0x008000; |
| 618 | ir->polling = 50; // ms |
| 619 | break; |
| 620 | |
| 621 | case BTTV_BOARD_WINFAST2000: |
| 622 | ir_codes = ir_codes_winfast; |
| 623 | ir->mask_keycode = 0x1f8; |
| 624 | break; |
| 625 | case BTTV_BOARD_MAGICTVIEW061: |
| 626 | case BTTV_BOARD_MAGICTVIEW063: |
| 627 | ir_codes = ir_codes_winfast; |
| 628 | ir->mask_keycode = 0x0008e000; |
| 629 | ir->mask_keydown = 0x00200000; |
| 630 | break; |
| 631 | case BTTV_BOARD_APAC_VIEWCOMP: |
| 632 | ir_codes = ir_codes_apac_viewcomp; |
| 633 | ir->mask_keycode = 0x001f00; |
| 634 | ir->mask_keyup = 0x008000; |
| 635 | ir->polling = 50; // ms |
| 636 | break; |
| 637 | case BTTV_BOARD_CONCEPTRONIC_CTVFMI2: |
| 638 | ir_codes = ir_codes_conceptronic; |
| 639 | ir->mask_keycode = 0x001F00; |
| 640 | ir->mask_keyup = 0x006000; |
| 641 | ir->polling = 50; // ms |
| 642 | break; |
| 643 | case BTTV_BOARD_NEBULA_DIGITV: |
| 644 | ir_codes = ir_codes_nebula; |
| 645 | driver.any_irq = ir_rc5_irq; |
| 646 | driver.gpio_irq = NULL; |
| 647 | ir->rc5_gpio = 1; |
| 648 | break; |
| 649 | } |
| 650 | if (NULL == ir_codes) { |
| 651 | kfree(ir); |
| 652 | input_free_device(input_dev); |
| 653 | return -ENODEV; |
| 654 | } |
| 655 | |
| 656 | if (ir->rc5_gpio) { |
| 657 | u32 gpio; |
| 658 | /* enable remote irq */ |
| 659 | bttv_gpio_inout(sub->core, (1 << 4), 1 << 4); |
| 660 | gpio = bttv_gpio_read(sub->core); |
| 661 | bttv_gpio_write(sub->core, gpio & ~(1 << 4)); |
| 662 | bttv_gpio_write(sub->core, gpio | (1 << 4)); |
| 663 | } else { |
| 664 | /* init hardware-specific stuff */ |
| 665 | bttv_gpio_inout(sub->core, ir->mask_keycode | ir->mask_keydown, 0); |
| 666 | } |
| 667 | |
| 668 | /* init input device */ |
| 669 | snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)", |
| 670 | sub->core->type); |
| 671 | snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", |
| 672 | pci_name(sub->core->pci)); |
| 673 | |
| 674 | ir->input = input_dev; |
| 675 | ir->sub = sub; |
| 676 | ir_input_init(input_dev, &ir->ir, ir_type, ir_codes); |
| 677 | input_dev->name = ir->name; |
| 678 | input_dev->phys = ir->phys; |
| 679 | input_dev->id.bustype = BUS_PCI; |
| 680 | input_dev->id.version = 1; |
| 681 | if (sub->core->pci->subsystem_vendor) { |
| 682 | input_dev->id.vendor = sub->core->pci->subsystem_vendor; |
| 683 | input_dev->id.product = sub->core->pci->subsystem_device; |
| 684 | } else { |
| 685 | input_dev->id.vendor = sub->core->pci->vendor; |
| 686 | input_dev->id.product = sub->core->pci->device; |
| 687 | } |
| 688 | input_dev->cdev.dev = &sub->core->pci->dev; |
| 689 | |
| 690 | if (ir->polling) { |
| 691 | INIT_WORK(&ir->work, ir_work, ir); |
| 692 | init_timer(&ir->timer); |
| 693 | ir->timer.function = ir_timer; |
| 694 | ir->timer.data = (unsigned long)ir; |
| 695 | schedule_work(&ir->work); |
| 696 | } else if (ir->rc5_gpio) { |
| 697 | /* set timer_end for code completion */ |
| 698 | init_timer(&ir->timer_end); |
| 699 | ir->timer_end.function = ir_rc5_timer_end; |
| 700 | ir->timer_end.data = (unsigned long)ir; |
| 701 | |
| 702 | init_timer(&ir->timer_keyup); |
| 703 | ir->timer_keyup.function = ir_rc5_timer_keyup; |
| 704 | ir->timer_keyup.data = (unsigned long)ir; |
| 705 | } |
| 706 | |
| 707 | /* all done */ |
| 708 | dev_set_drvdata(dev, ir); |
| 709 | input_register_device(ir->input); |
| 710 | |
| 711 | /* the remote isn't as bouncy as a keyboard */ |
| 712 | ir->input->rep[REP_DELAY] = repeat_delay; |
| 713 | ir->input->rep[REP_PERIOD] = repeat_period; |
| 714 | |
| 715 | return 0; |
| 716 | } |
| 717 | |
| 718 | static int ir_remove(struct device *dev) |
| 719 | { |
| 720 | struct IR *ir = dev_get_drvdata(dev); |
| 721 | |
| 722 | if (ir->polling) { |
| 723 | del_timer(&ir->timer); |
| 724 | flush_scheduled_work(); |
| 725 | } |
| 726 | |
| 727 | if (ir->rc5_gpio) { |
| 728 | u32 gpio; |
| 729 | |
| 730 | del_timer(&ir->timer_end); |
| 731 | flush_scheduled_work(); |
| 732 | |
| 733 | gpio = bttv_gpio_read(ir->sub->core); |
| 734 | bttv_gpio_write(ir->sub->core, gpio & ~(1 << 4)); |
| 735 | } |
| 736 | |
| 737 | input_unregister_device(ir->input); |
| 738 | kfree(ir); |
| 739 | return 0; |
| 740 | } |
| 741 | |
| 742 | /* ---------------------------------------------------------------------- */ |
| 743 | |
| 744 | MODULE_AUTHOR("Gerd Knorr, Pavel Machek"); |
| 745 | MODULE_DESCRIPTION("input driver for bt8x8 gpio IR remote controls"); |
| 746 | MODULE_LICENSE("GPL"); |
| 747 | |
| 748 | static int ir_init(void) |
| 749 | { |
| 750 | return bttv_sub_register(&driver, "remote"); |
| 751 | } |
| 752 | |
| 753 | static void ir_fini(void) |
| 754 | { |
| 755 | bttv_sub_unregister(&driver); |
| 756 | } |
| 757 | |
| 758 | module_init(ir_init); |
| 759 | module_exit(ir_fini); |
| 760 | |
| 761 | |
| 762 | /* |
| 763 | * Local variables: |
| 764 | * c-basic-offset: 8 |
| 765 | * End: |
| 766 | */ |