drivers/media/video/saa7134/saa7134-input.c

   1 /*
   2  *
   3  * handle saa7134 IR remotes via linux kernel input layer.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  18  *
  19  */
  20
  21 #include <linux/module.h>
  22 #include <linux/init.h>
  23 #include <linux/delay.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/slab.h>
  26
  27 #include "saa7134-reg.h"
  28 #include "saa7134.h"
  29
  30 #define MODULE_NAME "saa7134"
  31
  32 static unsigned int disable_ir;
  33 module_param(disable_ir, int, 0444);
  34 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
  35
  36 static unsigned int ir_debug;
  37 module_param(ir_debug, int, 0644);
  38 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
  39
  40 static int pinnacle_remote;
  41 module_param(pinnacle_remote, int, 0644);    /* Choose Pinnacle PCTV remote */
  42 MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
  43
  44 #define dprintk(fmt, arg...)    if (ir_debug) \
  45         printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
  46 #define i2cdprintk(fmt, arg...)    if (ir_debug) \
  47         printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg)
  48
  49 /* Helper function for raw decoding at GPIO16 or GPIO18 */
  50 static int saa7134_raw_decode_irq(struct saa7134_dev *dev);
  51
  52 /* -------------------- GPIO generic keycode builder -------------------- */
  53
  54 static int build_key(struct saa7134_dev *dev)
  55 {
  56         struct saa7134_card_ir *ir = dev->remote;
  57         u32 gpio, data;
  58
  59         /* here comes the additional handshake steps for some cards */
  60         switch (dev->board) {
  61         case SAA7134_BOARD_GOTVIEW_7135:
  62                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
  63                 saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
  64                 break;
  65         }
  66         /* rising SAA7134_GPIO_GPRESCAN reads the status */
  67         saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  68         saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  69
  70         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
  71         if (ir->polling) {
  72                 if (ir->last_gpio == gpio)
  73                         return 0;
  74                 ir->last_gpio = gpio;
  75         }
  76
  77         data = ir_extract_bits(gpio, ir->mask_keycode);
  78         dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
  79                 gpio, ir->mask_keycode, data);
  80
  81         switch (dev->board) {
  82         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
  83                 if (data == ir->mask_keycode)
  84                         rc_keyup(ir->dev);
  85                 else
  86                         rc_keydown_notimeout(ir->dev, data, 0);
  87                 return 0;
  88         }
  89
  90         if (ir->polling) {
  91                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
  92                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
  93                         rc_keydown_notimeout(ir->dev, data, 0);
  94                 } else {
  95                         rc_keyup(ir->dev);
  96                 }
  97         }
  98         else {  /* IRQ driven mode - handle key press and release in one go */
  99                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 100                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 101                         rc_keydown_notimeout(ir->dev, data, 0);
 102                         rc_keyup(ir->dev);
 103                 }
 104         }
 105
 106         return 0;
 107 }
 108
 109 /* --------------------- Chip specific I2C key builders ----------------- */
 110
 111 static int get_key_flydvb_trio(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 112 {
 113         int gpio;
 114         int attempt = 0;
 115         unsigned char b;
 116
 117         /* We need this to access GPI Used by the saa_readl macro. */
 118         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 119
 120         if (dev == NULL) {
 121                 i2cdprintk("get_key_flydvb_trio: "
 122                            "ir->c->adapter->algo_data is NULL!\n");
 123                 return -EIO;
 124         }
 125
 126         /* rising SAA7134_GPIGPRESCAN reads the status */
 127         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 128         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 129
 130         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 131
 132         if (0x40000 & ~gpio)
 133                 return 0; /* No button press */
 134
 135         /* No button press - only before first key pressed */
 136         if (b == 0xFF)
 137                 return 0;
 138
 139         /* poll IR chip */
 140         /* weak up the IR chip */
 141         b = 0;
 142
 143         while (1 != i2c_master_send(ir->c, &b, 1)) {
 144                 if ((attempt++) < 10) {
 145                         /*
 146                          * wait a bit for next attempt -
 147                          * I don't know how make it better
 148                          */
 149                         msleep(10);
 150                         continue;
 151                 }
 152                 i2cdprintk("send wake up byte to pic16C505 (IR chip)"
 153                            "failed %dx\n", attempt);
 154                 return -EIO;
 155         }
 156         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 157                 i2cdprintk("read error\n");
 158                 return -EIO;
 159         }
 160
 161         *ir_key = b;
 162         *ir_raw = b;
 163         return 1;
 164 }
 165
 166 static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key,
 167                                        u32 *ir_raw)
 168 {
 169         unsigned char b;
 170         int gpio;
 171
 172         /* <dev> is needed to access GPIO. Used by the saa_readl macro. */
 173         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 174         if (dev == NULL) {
 175                 i2cdprintk("get_key_msi_tvanywhere_plus: "
 176                            "ir->c->adapter->algo_data is NULL!\n");
 177                 return -EIO;
 178         }
 179
 180         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 181
 182         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 183         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 184
 185         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 186
 187         /* GPIO&0x40 is pulsed low when a button is pressed. Don't do
 188            I2C receive if gpio&0x40 is not low. */
 189
 190         if (gpio & 0x40)
 191                 return 0;       /* No button press */
 192
 193         /* GPIO says there is a button press. Get it. */
 194
 195         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 196                 i2cdprintk("read error\n");
 197                 return -EIO;
 198         }
 199
 200         /* No button press */
 201
 202         if (b == 0xff)
 203                 return 0;
 204
 205         /* Button pressed */
 206
 207         dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
 208         *ir_key = b;
 209         *ir_raw = b;
 210         return 1;
 211 }
 212
 213 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 214 {
 215         unsigned char b;
 216
 217         /* poll IR chip */
 218         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 219                 i2cdprintk("read error\n");
 220                 return -EIO;
 221         }
 222
 223         /* no button press */
 224         if (b==0)
 225                 return 0;
 226
 227         /* repeating */
 228         if (b & 0x80)
 229                 return 1;
 230
 231         *ir_key = b;
 232         *ir_raw = b;
 233         return 1;
 234 }
 235
 236 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 237 {
 238         unsigned char buf[5], cod4, code3, code4;
 239
 240         /* poll IR chip */
 241         if (5 != i2c_master_recv(ir->c, buf, 5))
 242                 return -EIO;
 243
 244         cod4    = buf[4];
 245         code4   = (cod4 >> 2);
 246         code3   = buf[3];
 247         if (code3 == 0)
 248                 /* no key pressed */
 249                 return 0;
 250
 251         /* return key */
 252         *ir_key = code4;
 253         *ir_raw = code4;
 254         return 1;
 255 }
 256
 257
 258 static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 259 {
 260         unsigned char data[12];
 261         u32 gpio;
 262
 263         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 264
 265         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 266         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 267         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 268
 269         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 270
 271         if (0x400000 & ~gpio)
 272                 return 0; /* No button press */
 273
 274         ir->c->addr = 0x5a >> 1;
 275
 276         if (12 != i2c_master_recv(ir->c, data, 12)) {
 277                 i2cdprintk("read error\n");
 278                 return -EIO;
 279         }
 280
 281         if (data[9] != (unsigned char)(~data[8]))
 282                 return 0;
 283
 284         *ir_raw = ((data[10] << 16) | (data[11] << 8) | (data[9] << 0));
 285         *ir_key = *ir_raw;
 286
 287         return 1;
 288 }
 289
 290 /* Common (grey or coloured) pinnacle PCTV remote handling
 291  *
 292  */
 293 static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
 294                             int parity_offset, int marker, int code_modulo)
 295 {
 296         unsigned char b[4];
 297         unsigned int start = 0,parity = 0,code = 0;
 298
 299         /* poll IR chip */
 300         if (4 != i2c_master_recv(ir->c, b, 4)) {
 301                 i2cdprintk("read error\n");
 302                 return -EIO;
 303         }
 304
 305         for (start = 0; start < ARRAY_SIZE(b); start++) {
 306                 if (b[start] == marker) {
 307                         code=b[(start+parity_offset + 1) % 4];
 308                         parity=b[(start+parity_offset) % 4];
 309                 }
 310         }
 311
 312         /* Empty Request */
 313         if (parity == 0)
 314                 return 0;
 315
 316         /* Repeating... */
 317         if (ir->old == parity)
 318                 return 0;
 319
 320         ir->old = parity;
 321
 322         /* drop special codes when a key is held down a long time for the grey controller
 323            In this case, the second bit of the code is asserted */
 324         if (marker == 0xfe && (code & 0x40))
 325                 return 0;
 326
 327         code %= code_modulo;
 328
 329         *ir_raw = code;
 330         *ir_key = code;
 331
 332         i2cdprintk("Pinnacle PCTV key %02x\n", code);
 333
 334         return 1;
 335 }
 336
 337 /* The grey pinnacle PCTV remote
 338  *
 339  *  There are one issue with this remote:
 340  *   - I2c packet does not change when the same key is pressed quickly. The workaround
 341  *     is to hold down each key for about half a second, so that another code is generated
 342  *     in the i2c packet, and the function can distinguish key presses.
 343  *
 344  * Sylvain Pasche <sylvain.pasche@gmail.com>
 345  */
 346 static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 347 {
 348
 349         return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
 350 }
 351
 352
 353 /* The new pinnacle PCTV remote (with the colored buttons)
 354  *
 355  * Ricardo Cerqueira <v4l@cerqueira.org>
 356  */
 357 static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 358 {
 359         /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
 360          *
 361          * this is the only value that results in 42 unique
 362          * codes < 128
 363          */
 364
 365         return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
 366 }
 367
 368 void saa7134_input_irq(struct saa7134_dev *dev)
 369 {
 370         struct saa7134_card_ir *ir;
 371
 372         if (!dev || !dev->remote)
 373                 return;
 374
 375         ir = dev->remote;
 376         if (!ir->running)
 377                 return;
 378
 379         if (!ir->polling && !ir->raw_decode) {
 380                 build_key(dev);
 381         } else if (ir->raw_decode) {
 382                 saa7134_raw_decode_irq(dev);
 383         }
 384 }
 385
 386 static void saa7134_input_timer(unsigned long data)
 387 {
 388         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 389         struct saa7134_card_ir *ir = dev->remote;
 390
 391         build_key(dev);
 392         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
 393 }
 394
 395 static void ir_raw_decode_timer_end(unsigned long data)
 396 {
 397         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 398         struct saa7134_card_ir *ir = dev->remote;
 399
 400         ir_raw_event_handle(dev->remote->dev);
 401
 402         ir->active = false;
 403 }
 404
 405 static int __saa7134_ir_start(void *priv)
 406 {
 407         struct saa7134_dev *dev = priv;
 408         struct saa7134_card_ir *ir;
 409
 410         if (!dev || !dev->remote)
 411                 return -EINVAL;
 412
 413         ir  = dev->remote;
 414         if (ir->running)
 415                 return 0;
 416
 417         ir->running = true;
 418         ir->active = false;
 419
 420         if (ir->polling) {
 421                 setup_timer(&ir->timer, saa7134_input_timer,
 422                             (unsigned long)dev);
 423                 ir->timer.expires = jiffies + HZ;
 424                 add_timer(&ir->timer);
 425         } else if (ir->raw_decode) {
 426                 /* set timer_end for code completion */
 427                 setup_timer(&ir->timer, ir_raw_decode_timer_end,
 428                             (unsigned long)dev);
 429         }
 430
 431         return 0;
 432 }
 433
 434 static void __saa7134_ir_stop(void *priv)
 435 {
 436         struct saa7134_dev *dev = priv;
 437         struct saa7134_card_ir *ir;
 438
 439         if (!dev || !dev->remote)
 440                 return;
 441
 442         ir  = dev->remote;
 443         if (!ir->running)
 444                 return;
 445
 446         if (ir->polling || ir->raw_decode)
 447                 del_timer_sync(&ir->timer);
 448
 449         ir->active = false;
 450         ir->running = false;
 451
 452         return;
 453 }
 454
 455 int saa7134_ir_start(struct saa7134_dev *dev)
 456 {
 457         if (dev->remote->users)
 458                 return __saa7134_ir_start(dev);
 459
 460         return 0;
 461 }
 462
 463 void saa7134_ir_stop(struct saa7134_dev *dev)
 464 {
 465         if (dev->remote->users)
 466                 __saa7134_ir_stop(dev);
 467 }
 468
 469 static int saa7134_ir_open(struct rc_dev *rc)
 470 {
 471         struct saa7134_dev *dev = rc->priv;
 472
 473         dev->remote->users++;
 474         return __saa7134_ir_start(dev);
 475 }
 476
 477 static void saa7134_ir_close(struct rc_dev *rc)
 478 {
 479         struct saa7134_dev *dev = rc->priv;
 480
 481         dev->remote->users--;
 482         if (!dev->remote->users)
 483                 __saa7134_ir_stop(dev);
 484 }
 485
 486 int saa7134_input_init1(struct saa7134_dev *dev)
 487 {
 488         struct saa7134_card_ir *ir;
 489         struct rc_dev *rc;
 490         char *ir_codes = NULL;
 491         u32 mask_keycode = 0;
 492         u32 mask_keydown = 0;
 493         u32 mask_keyup   = 0;
 494         unsigned polling = 0;
 495         bool raw_decode  = false;
 496         int err;
 497
 498         if (dev->has_remote != SAA7134_REMOTE_GPIO)
 499                 return -ENODEV;
 500         if (disable_ir)
 501                 return -ENODEV;
 502
 503         /* detect & configure */
 504         switch (dev->board) {
 505         case SAA7134_BOARD_FLYVIDEO2000:
 506         case SAA7134_BOARD_FLYVIDEO3000:
 507         case SAA7134_BOARD_FLYTVPLATINUM_FM:
 508         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
 509         case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
 510                 ir_codes     = RC_MAP_FLYVIDEO;
 511                 mask_keycode = 0xEC00000;
 512                 mask_keydown = 0x0040000;
 513                 break;
 514         case SAA7134_BOARD_CINERGY400:
 515         case SAA7134_BOARD_CINERGY600:
 516         case SAA7134_BOARD_CINERGY600_MK3:
 517                 ir_codes     = RC_MAP_CINERGY;
 518                 mask_keycode = 0x00003f;
 519                 mask_keyup   = 0x040000;
 520                 break;
 521         case SAA7134_BOARD_ECS_TVP3XP:
 522         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
 523                 ir_codes     = RC_MAP_EZTV;
 524                 mask_keycode = 0x00017c;
 525                 mask_keyup   = 0x000002;
 526                 polling      = 50; // ms
 527                 break;
 528         case SAA7134_BOARD_KWORLD_XPERT:
 529         case SAA7134_BOARD_AVACSSMARTTV:
 530                 ir_codes     = RC_MAP_PIXELVIEW;
 531                 mask_keycode = 0x00001F;
 532                 mask_keyup   = 0x000020;
 533                 polling      = 50; // ms
 534                 break;
 535         case SAA7134_BOARD_MD2819:
 536         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
 537         case SAA7134_BOARD_AVERMEDIA_305:
 538         case SAA7134_BOARD_AVERMEDIA_307:
 539         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
 540         case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
 541         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
 542         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
 543         case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
 544         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
 545         case SAA7134_BOARD_AVERMEDIA_M102:
 546         case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
 547                 ir_codes     = RC_MAP_AVERMEDIA;
 548                 mask_keycode = 0x0007C8;
 549                 mask_keydown = 0x000010;
 550                 polling      = 50; // ms
 551                 /* Set GPIO pin2 to high to enable the IR controller */
 552                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
 553                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
 554                 break;
 555         case SAA7134_BOARD_AVERMEDIA_M135A:
 556                 ir_codes     = RC_MAP_AVERMEDIA_M135A;
 557                 mask_keydown = 0x0040000;       /* Enable GPIO18 line on both edges */
 558                 mask_keyup   = 0x0040000;
 559                 mask_keycode = 0xffff;
 560                 raw_decode   = true;
 561                 break;
 562         case SAA7134_BOARD_AVERMEDIA_M733A:
 563                 ir_codes     = RC_MAP_AVERMEDIA_M733A_RM_K6;
 564                 mask_keydown = 0x0040000;
 565                 mask_keyup   = 0x0040000;
 566                 mask_keycode = 0xffff;
 567                 raw_decode   = true;
 568                 break;
 569         case SAA7134_BOARD_AVERMEDIA_777:
 570         case SAA7134_BOARD_AVERMEDIA_A16AR:
 571                 ir_codes     = RC_MAP_AVERMEDIA;
 572                 mask_keycode = 0x02F200;
 573                 mask_keydown = 0x000400;
 574                 polling      = 50; // ms
 575                 /* Without this we won't receive key up events */
 576                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 577                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 578                 break;
 579         case SAA7134_BOARD_AVERMEDIA_A16D:
 580                 ir_codes     = RC_MAP_AVERMEDIA_A16D;
 581                 mask_keycode = 0x02F200;
 582                 mask_keydown = 0x000400;
 583                 polling      = 50; /* ms */
 584                 /* Without this we won't receive key up events */
 585                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 586                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 587                 break;
 588         case SAA7134_BOARD_KWORLD_TERMINATOR:
 589                 ir_codes     = RC_MAP_PIXELVIEW;
 590                 mask_keycode = 0x00001f;
 591                 mask_keyup   = 0x000060;
 592                 polling      = 50; // ms
 593                 break;
 594         case SAA7134_BOARD_MANLI_MTV001:
 595         case SAA7134_BOARD_MANLI_MTV002:
 596                 ir_codes     = RC_MAP_MANLI;
 597                 mask_keycode = 0x001f00;
 598                 mask_keyup   = 0x004000;
 599                 polling      = 50; /* ms */
 600                 break;
 601         case SAA7134_BOARD_BEHOLD_409FM:
 602         case SAA7134_BOARD_BEHOLD_401:
 603         case SAA7134_BOARD_BEHOLD_403:
 604         case SAA7134_BOARD_BEHOLD_403FM:
 605         case SAA7134_BOARD_BEHOLD_405:
 606         case SAA7134_BOARD_BEHOLD_405FM:
 607         case SAA7134_BOARD_BEHOLD_407:
 608         case SAA7134_BOARD_BEHOLD_407FM:
 609         case SAA7134_BOARD_BEHOLD_409:
 610         case SAA7134_BOARD_BEHOLD_505FM:
 611         case SAA7134_BOARD_BEHOLD_505RDS_MK5:
 612         case SAA7134_BOARD_BEHOLD_505RDS_MK3:
 613         case SAA7134_BOARD_BEHOLD_507_9FM:
 614         case SAA7134_BOARD_BEHOLD_507RDS_MK3:
 615         case SAA7134_BOARD_BEHOLD_507RDS_MK5:
 616                 ir_codes     = RC_MAP_MANLI;
 617                 mask_keycode = 0x003f00;
 618                 mask_keyup   = 0x004000;
 619                 polling      = 50; /* ms */
 620                 break;
 621         case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
 622                 ir_codes     = RC_MAP_BEHOLD_COLUMBUS;
 623                 mask_keycode = 0x003f00;
 624                 mask_keyup   = 0x004000;
 625                 polling      = 50; // ms
 626                 break;
 627         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
 628                 ir_codes     = RC_MAP_PCTV_SEDNA;
 629                 mask_keycode = 0x001f00;
 630                 mask_keyup   = 0x004000;
 631                 polling      = 50; // ms
 632                 break;
 633         case SAA7134_BOARD_GOTVIEW_7135:
 634                 ir_codes     = RC_MAP_GOTVIEW7135;
 635                 mask_keycode = 0x0003CC;
 636                 mask_keydown = 0x000010;
 637                 polling      = 5; /* ms */
 638                 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
 639                 break;
 640         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
 641         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
 642         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
 643                 ir_codes     = RC_MAP_VIDEOMATE_TV_PVR;
 644                 mask_keycode = 0x00003F;
 645                 mask_keyup   = 0x400000;
 646                 polling      = 50; // ms
 647                 break;
 648         case SAA7134_BOARD_PROTEUS_2309:
 649                 ir_codes     = RC_MAP_PROTEUS_2309;
 650                 mask_keycode = 0x00007F;
 651                 mask_keyup   = 0x000080;
 652                 polling      = 50; // ms
 653                 break;
 654         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
 655         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
 656                 ir_codes     = RC_MAP_VIDEOMATE_TV_PVR;
 657                 mask_keycode = 0x003F00;
 658                 mask_keyup   = 0x040000;
 659                 break;
 660         case SAA7134_BOARD_FLYDVBS_LR300:
 661         case SAA7134_BOARD_FLYDVBT_LR301:
 662         case SAA7134_BOARD_FLYDVBTDUO:
 663                 ir_codes     = RC_MAP_FLYDVB;
 664                 mask_keycode = 0x0001F00;
 665                 mask_keydown = 0x0040000;
 666                 break;
 667         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
 668         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
 669         case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
 670                 ir_codes     = RC_MAP_ASUS_PC39;
 671                 mask_keydown = 0x0040000;       /* Enable GPIO18 line on both edges */
 672                 mask_keyup   = 0x0040000;
 673                 mask_keycode = 0xffff;
 674                 raw_decode   = true;
 675                 break;
 676         case SAA7134_BOARD_ENCORE_ENLTV:
 677         case SAA7134_BOARD_ENCORE_ENLTV_FM:
 678                 ir_codes     = RC_MAP_ENCORE_ENLTV;
 679                 mask_keycode = 0x00007f;
 680                 mask_keyup   = 0x040000;
 681                 polling      = 50; // ms
 682                 break;
 683         case SAA7134_BOARD_ENCORE_ENLTV_FM53:
 684                 ir_codes     = RC_MAP_ENCORE_ENLTV_FM53;
 685                 mask_keydown = 0x0040000;       /* Enable GPIO18 line on both edges */
 686                 mask_keyup   = 0x0040000;
 687                 mask_keycode = 0xffff;
 688                 raw_decode   = true;
 689                 break;
 690         case SAA7134_BOARD_10MOONSTVMASTER3:
 691                 ir_codes     = RC_MAP_ENCORE_ENLTV;
 692                 mask_keycode = 0x5f80000;
 693                 mask_keyup   = 0x8000000;
 694                 polling      = 50; //ms
 695                 break;
 696         case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
 697                 ir_codes     = RC_MAP_GENIUS_TVGO_A11MCE;
 698                 mask_keycode = 0xff;
 699                 mask_keydown = 0xf00000;
 700                 polling = 50; /* ms */
 701                 break;
 702         case SAA7134_BOARD_REAL_ANGEL_220:
 703                 ir_codes     = RC_MAP_REAL_AUDIO_220_32_KEYS;
 704                 mask_keycode = 0x3f00;
 705                 mask_keyup   = 0x4000;
 706                 polling = 50; /* ms */
 707                 break;
 708         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
 709                 ir_codes     = RC_MAP_KWORLD_PLUS_TV_ANALOG;
 710                 mask_keycode = 0x7f;
 711                 polling = 40; /* ms */
 712                 break;
 713         case SAA7134_BOARD_VIDEOMATE_S350:
 714                 ir_codes     = RC_MAP_VIDEOMATE_S350;
 715                 mask_keycode = 0x003f00;
 716                 mask_keydown = 0x040000;
 717                 break;
 718         case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
 719                 ir_codes     = RC_MAP_WINFAST;
 720                 mask_keycode = 0x5f00;
 721                 mask_keyup   = 0x020000;
 722                 polling      = 50; /* ms */
 723                 break;
 724         case SAA7134_BOARD_VIDEOMATE_M1F:
 725                 ir_codes     = RC_MAP_VIDEOMATE_M1F;
 726                 mask_keycode = 0x0ff00;
 727                 mask_keyup   = 0x040000;
 728                 break;
 729         }
 730         if (NULL == ir_codes) {
 731                 printk("%s: Oops: IR config error [card=%d]\n",
 732                        dev->name, dev->board);
 733                 return -ENODEV;
 734         }
 735
 736         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 737         rc = rc_allocate_device();
 738         if (!ir || !rc) {
 739                 err = -ENOMEM;
 740                 goto err_out_free;
 741         }
 742
 743         ir->dev = rc;
 744         dev->remote = ir;
 745
 746         /* init hardware-specific stuff */
 747         ir->mask_keycode = mask_keycode;
 748         ir->mask_keydown = mask_keydown;
 749         ir->mask_keyup   = mask_keyup;
 750         ir->polling      = polling;
 751         ir->raw_decode   = raw_decode;
 752
 753         /* init input device */
 754         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
 755                  saa7134_boards[dev->board].name);
 756         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
 757                  pci_name(dev->pci));
 758
 759         rc->priv = dev;
 760         rc->open = saa7134_ir_open;
 761         rc->close = saa7134_ir_close;
 762         if (raw_decode)
 763                 rc->driver_type = RC_DRIVER_IR_RAW;
 764
 765         rc->input_name = ir->name;
 766         rc->input_phys = ir->phys;
 767         rc->input_id.bustype = BUS_PCI;
 768         rc->input_id.version = 1;
 769         if (dev->pci->subsystem_vendor) {
 770                 rc->input_id.vendor  = dev->pci->subsystem_vendor;
 771                 rc->input_id.product = dev->pci->subsystem_device;
 772         } else {
 773                 rc->input_id.vendor  = dev->pci->vendor;
 774                 rc->input_id.product = dev->pci->device;
 775         }
 776         rc->dev.parent = &dev->pci->dev;
 777         rc->map_name = ir_codes;
 778         rc->driver_name = MODULE_NAME;
 779
 780         err = rc_register_device(rc);
 781         if (err)
 782                 goto err_out_free;
 783
 784         return 0;
 785
 786 err_out_free:
 787         rc_free_device(rc);
 788         dev->remote = NULL;
 789         kfree(ir);
 790         return err;
 791 }
 792
 793 void saa7134_input_fini(struct saa7134_dev *dev)
 794 {
 795         if (NULL == dev->remote)
 796                 return;
 797
 798         saa7134_ir_stop(dev);
 799         rc_unregister_device(dev->remote->dev);
 800         kfree(dev->remote);
 801         dev->remote = NULL;
 802 }
 803
 804 void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
 805 {
 806         struct i2c_board_info info;
 807         struct i2c_msg msg_msi = {
 808                 .addr = 0x50,
 809                 .flags = I2C_M_RD,
 810                 .len = 0,
 811                 .buf = NULL,
 812         };
 813         int rc;
 814
 815         if (disable_ir) {
 816                 dprintk("IR has been disabled, not probing for i2c remote\n");
 817                 return;
 818         }
 819
 820         memset(&info, 0, sizeof(struct i2c_board_info));
 821         memset(&dev->init_data, 0, sizeof(dev->init_data));
 822         strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
 823
 824         switch (dev->board) {
 825         case SAA7134_BOARD_PINNACLE_PCTV_110i:
 826         case SAA7134_BOARD_PINNACLE_PCTV_310i:
 827                 dev->init_data.name = "Pinnacle PCTV";
 828                 if (pinnacle_remote == 0) {
 829                         dev->init_data.get_key = get_key_pinnacle_color;
 830                         dev->init_data.ir_codes = RC_MAP_PINNACLE_COLOR;
 831                         info.addr = 0x47;
 832                 } else {
 833                         dev->init_data.get_key = get_key_pinnacle_grey;
 834                         dev->init_data.ir_codes = RC_MAP_PINNACLE_GREY;
 835                         info.addr = 0x47;
 836                 }
 837                 break;
 838         case SAA7134_BOARD_UPMOST_PURPLE_TV:
 839                 dev->init_data.name = "Purple TV";
 840                 dev->init_data.get_key = get_key_purpletv;
 841                 dev->init_data.ir_codes = RC_MAP_PURPLETV;
 842                 info.addr = 0x7a;
 843                 break;
 844         case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
 845                 dev->init_data.name = "MSI TV@nywhere Plus";
 846                 dev->init_data.get_key = get_key_msi_tvanywhere_plus;
 847                 dev->init_data.ir_codes = RC_MAP_MSI_TVANYWHERE_PLUS;
 848                 /*
 849                  * MSI TV@nyware Plus requires more frequent polling
 850                  * otherwise it will miss some keypresses
 851                  */
 852                 dev->init_data.polling_interval = 50;
 853                 info.addr = 0x30;
 854                 /* MSI TV@nywhere Plus controller doesn't seem to
 855                    respond to probes unless we read something from
 856                    an existing device. Weird...
 857                    REVISIT: might no longer be needed */
 858                 rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
 859                 dprintk("probe 0x%02x @ %s: %s\n",
 860                         msg_msi.addr, dev->i2c_adap.name,
 861                         (1 == rc) ? "yes" : "no");
 862                 break;
 863         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
 864                 dev->init_data.name = "HVR 1110";
 865                 dev->init_data.get_key = get_key_hvr1110;
 866                 dev->init_data.ir_codes = RC_MAP_HAUPPAUGE_NEW;
 867                 info.addr = 0x71;
 868                 break;
 869         case SAA7134_BOARD_BEHOLD_607FM_MK3:
 870         case SAA7134_BOARD_BEHOLD_607FM_MK5:
 871         case SAA7134_BOARD_BEHOLD_609FM_MK3:
 872         case SAA7134_BOARD_BEHOLD_609FM_MK5:
 873         case SAA7134_BOARD_BEHOLD_607RDS_MK3:
 874         case SAA7134_BOARD_BEHOLD_607RDS_MK5:
 875         case SAA7134_BOARD_BEHOLD_609RDS_MK3:
 876         case SAA7134_BOARD_BEHOLD_609RDS_MK5:
 877         case SAA7134_BOARD_BEHOLD_M6:
 878         case SAA7134_BOARD_BEHOLD_M63:
 879         case SAA7134_BOARD_BEHOLD_M6_EXTRA:
 880         case SAA7134_BOARD_BEHOLD_H6:
 881         case SAA7134_BOARD_BEHOLD_X7:
 882         case SAA7134_BOARD_BEHOLD_H7:
 883         case SAA7134_BOARD_BEHOLD_A7:
 884                 dev->init_data.name = "BeholdTV";
 885                 dev->init_data.get_key = get_key_beholdm6xx;
 886                 dev->init_data.ir_codes = RC_MAP_BEHOLD;
 887                 dev->init_data.type = RC_TYPE_NEC;
 888                 info.addr = 0x2d;
 889                 break;
 890         case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
 891         case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
 892                 info.addr = 0x40;
 893                 break;
 894         case SAA7134_BOARD_FLYDVB_TRIO:
 895                 dev->init_data.name = "FlyDVB Trio";
 896                 dev->init_data.get_key = get_key_flydvb_trio;
 897                 dev->init_data.ir_codes = RC_MAP_FLYDVB;
 898                 info.addr = 0x0b;
 899                 break;
 900         default:
 901                 dprintk("No I2C IR support for board %x\n", dev->board);
 902                 return;
 903         }
 904
 905         if (dev->init_data.name)
 906                 info.platform_data = &dev->init_data;
 907         i2c_new_device(&dev->i2c_adap, &info);
 908 }
 909
 910 static int saa7134_raw_decode_irq(struct saa7134_dev *dev)
 911 {
 912         struct saa7134_card_ir *ir = dev->remote;
 913         unsigned long timeout;
 914         int space;
 915
 916         /* Generate initial event */
 917         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 918         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 919         space = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
 920         ir_raw_event_store_edge(dev->remote->dev, space ? IR_SPACE : IR_PULSE);
 921
 922         /*
 923          * Wait 15 ms from the start of the first IR event before processing
 924          * the event. This time is enough for NEC protocol. May need adjustments
 925          * to work with other protocols.
 926          */
 927         if (!ir->active) {
 928                 timeout = jiffies + jiffies_to_msecs(15);
 929                 mod_timer(&ir->timer, timeout);
 930                 ir->active = true;
 931         }
 932
 933         return 1;
 934 }