SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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/input.h>
  26 #include <linux/slab.h>
  27
  28 #include "saa7134-reg.h"
  29 #include "saa7134.h"
  30
  31 #define MODULE_NAME "saa7134"
  32
  33 static unsigned int disable_ir;
  34 module_param(disable_ir, int, 0444);
  35 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
  36
  37 static unsigned int ir_debug;
  38 module_param(ir_debug, int, 0644);
  39 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
  40
  41 static int pinnacle_remote;
  42 module_param(pinnacle_remote, int, 0644);    /* Choose Pinnacle PCTV remote */
  43 MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
  44
  45 static int ir_rc5_remote_gap = 885;
  46 module_param(ir_rc5_remote_gap, int, 0644);
  47 static int ir_rc5_key_timeout = 115;
  48 module_param(ir_rc5_key_timeout, int, 0644);
  49
  50 static int repeat_delay = 500;
  51 module_param(repeat_delay, int, 0644);
  52 MODULE_PARM_DESC(repeat_delay, "delay before key repeat started");
  53 static int repeat_period = 33;
  54 module_param(repeat_period, int, 0644);
  55 MODULE_PARM_DESC(repeat_period, "repeat period between "
  56     "keypresses when key is down");
  57
  58 static unsigned int disable_other_ir;
  59 module_param(disable_other_ir, int, 0644);
  60 MODULE_PARM_DESC(disable_other_ir, "disable full codes of "
  61     "alternative remotes from other manufacturers");
  62
  63 #define dprintk(fmt, arg...)    if (ir_debug) \
  64         printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
  65 #define i2cdprintk(fmt, arg...)    if (ir_debug) \
  66         printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg)
  67
  68 /* Helper functions for RC5 and NEC decoding at GPIO16 or GPIO18 */
  69 static int saa7134_rc5_irq(struct saa7134_dev *dev);
  70 static int saa7134_nec_irq(struct saa7134_dev *dev);
  71 static int saa7134_raw_decode_irq(struct saa7134_dev *dev);
  72 static void nec_task(unsigned long data);
  73 static void saa7134_nec_timer(unsigned long data);
  74
  75 /* -------------------- GPIO generic keycode builder -------------------- */
  76
  77 static int build_key(struct saa7134_dev *dev)
  78 {
  79         struct card_ir *ir = dev->remote;
  80         u32 gpio, data;
  81
  82         /* here comes the additional handshake steps for some cards */
  83         switch (dev->board) {
  84         case SAA7134_BOARD_GOTVIEW_7135:
  85                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
  86                 saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
  87                 break;
  88         }
  89         /* rising SAA7134_GPIO_GPRESCAN reads the status */
  90         saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  91         saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  92
  93         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
  94         if (ir->polling) {
  95                 if (ir->last_gpio == gpio)
  96                         return 0;
  97                 ir->last_gpio = gpio;
  98         }
  99
 100         data = ir_extract_bits(gpio, ir->mask_keycode);
 101         dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
 102                 gpio, ir->mask_keycode, data);
 103
 104         switch (dev->board) {
 105         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
 106                 if (data == ir->mask_keycode)
 107                         ir_input_nokey(ir->dev, &ir->ir);
 108                 else
 109                         ir_input_keydown(ir->dev, &ir->ir, data);
 110                 return 0;
 111         }
 112
 113         if (ir->polling) {
 114                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 115                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 116                         ir_input_keydown(ir->dev, &ir->ir, data);
 117                 } else {
 118                         ir_input_nokey(ir->dev, &ir->ir);
 119                 }
 120         }
 121         else {  /* IRQ driven mode - handle key press and release in one go */
 122                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 123                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 124                         ir_input_keydown(ir->dev, &ir->ir, data);
 125                         ir_input_nokey(ir->dev, &ir->ir);
 126                 }
 127         }
 128
 129         return 0;
 130 }
 131
 132 /* --------------------- Chip specific I2C key builders ----------------- */
 133
 134 static int get_key_flydvb_trio(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 135 {
 136         int gpio;
 137         int attempt = 0;
 138         unsigned char b;
 139
 140         /* We need this to access GPI Used by the saa_readl macro. */
 141         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 142
 143         if (dev == NULL) {
 144                 dprintk("get_key_flydvb_trio: "
 145                          "gir->c->adapter->algo_data is NULL!\n");
 146                 return -EIO;
 147         }
 148
 149         /* rising SAA7134_GPIGPRESCAN reads the status */
 150         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 151         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 152
 153         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 154
 155         if (0x40000 & ~gpio)
 156                 return 0; /* No button press */
 157
 158         /* No button press - only before first key pressed */
 159         if (b == 0xFF)
 160                 return 0;
 161
 162         /* poll IR chip */
 163         /* weak up the IR chip */
 164         b = 0;
 165
 166         while (1 != i2c_master_send(ir->c, &b, 1)) {
 167                 if ((attempt++) < 10) {
 168                         /*
 169                          * wait a bit for next attempt -
 170                          * I don't know how make it better
 171                          */
 172                         msleep(10);
 173                         continue;
 174                 }
 175                 i2cdprintk("send wake up byte to pic16C505 (IR chip)"
 176                            "failed %dx\n", attempt);
 177                 return -EIO;
 178         }
 179         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 180                 i2cdprintk("read error\n");
 181                 return -EIO;
 182         }
 183
 184         *ir_key = b;
 185         *ir_raw = b;
 186         return 1;
 187 }
 188
 189 static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key,
 190                                        u32 *ir_raw)
 191 {
 192         unsigned char b;
 193         int gpio;
 194
 195         /* <dev> is needed to access GPIO. Used by the saa_readl macro. */
 196         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 197         if (dev == NULL) {
 198                 dprintk("get_key_msi_tvanywhere_plus: "
 199                         "gir->c->adapter->algo_data is NULL!\n");
 200                 return -EIO;
 201         }
 202
 203         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 204
 205         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 206         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 207
 208         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 209
 210         /* GPIO&0x40 is pulsed low when a button is pressed. Don't do
 211            I2C receive if gpio&0x40 is not low. */
 212
 213         if (gpio & 0x40)
 214                 return 0;       /* No button press */
 215
 216         /* GPIO says there is a button press. Get it. */
 217
 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
 225         if (b == 0xff)
 226                 return 0;
 227
 228         /* Button pressed */
 229
 230         dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
 231         *ir_key = b;
 232         *ir_raw = b;
 233         return 1;
 234 }
 235
 236 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 237 {
 238         unsigned char b;
 239
 240         /* poll IR chip */
 241         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 242                 i2cdprintk("read error\n");
 243                 return -EIO;
 244         }
 245
 246         /* no button press */
 247         if (b==0)
 248                 return 0;
 249
 250         /* repeating */
 251         if (b & 0x80)
 252                 return 1;
 253
 254         *ir_key = b;
 255         *ir_raw = b;
 256         return 1;
 257 }
 258
 259 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 260 {
 261         unsigned char buf[5], cod4, code3, code4;
 262
 263         /* poll IR chip */
 264         if (5 != i2c_master_recv(ir->c, buf, 5))
 265                 return -EIO;
 266
 267         cod4    = buf[4];
 268         code4   = (cod4 >> 2);
 269         code3   = buf[3];
 270         if (code3 == 0)
 271                 /* no key pressed */
 272                 return 0;
 273
 274         /* return key */
 275         *ir_key = code4;
 276         *ir_raw = code4;
 277         return 1;
 278 }
 279
 280
 281 static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 282 {
 283         unsigned char data[12];
 284         u32 gpio;
 285
 286         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 287
 288         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 289         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 290         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 291
 292         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 293
 294         if (0x400000 & ~gpio)
 295                 return 0; /* No button press */
 296
 297         ir->c->addr = 0x5a >> 1;
 298
 299         if (12 != i2c_master_recv(ir->c, data, 12)) {
 300                 i2cdprintk("read error\n");
 301                 return -EIO;
 302         }
 303         /* IR of this card normally decode signals NEC-standard from
 304          * - Sven IHOO MT 5.1R remote. xxyye718
 305          * - Sven DVD HD-10xx remote. xxyyf708
 306          * - BBK ...
 307          * - mayby others
 308          * So, skip not our, if disable full codes mode.
 309          */
 310         if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
 311                 return 0;
 312
 313         /* Wrong data decode fix */
 314         if (data[9] != (unsigned char)(~data[8]))
 315                 return 0;
 316
 317         *ir_key = data[9];
 318         *ir_raw = data[9];
 319
 320         return 1;
 321 }
 322
 323 /* Common (grey or coloured) pinnacle PCTV remote handling
 324  *
 325  */
 326 static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
 327                             int parity_offset, int marker, int code_modulo)
 328 {
 329         unsigned char b[4];
 330         unsigned int start = 0,parity = 0,code = 0;
 331
 332         /* poll IR chip */
 333         if (4 != i2c_master_recv(ir->c, b, 4)) {
 334                 i2cdprintk("read error\n");
 335                 return -EIO;
 336         }
 337
 338         for (start = 0; start < ARRAY_SIZE(b); start++) {
 339                 if (b[start] == marker) {
 340                         code=b[(start+parity_offset + 1) % 4];
 341                         parity=b[(start+parity_offset) % 4];
 342                 }
 343         }
 344
 345         /* Empty Request */
 346         if (parity == 0)
 347                 return 0;
 348
 349         /* Repeating... */
 350         if (ir->old == parity)
 351                 return 0;
 352
 353         ir->old = parity;
 354
 355         /* drop special codes when a key is held down a long time for the grey controller
 356            In this case, the second bit of the code is asserted */
 357         if (marker == 0xfe && (code & 0x40))
 358                 return 0;
 359
 360         code %= code_modulo;
 361
 362         *ir_raw = code;
 363         *ir_key = code;
 364
 365         i2cdprintk("Pinnacle PCTV key %02x\n", code);
 366
 367         return 1;
 368 }
 369
 370 /* The grey pinnacle PCTV remote
 371  *
 372  *  There are one issue with this remote:
 373  *   - I2c packet does not change when the same key is pressed quickly. The workaround
 374  *     is to hold down each key for about half a second, so that another code is generated
 375  *     in the i2c packet, and the function can distinguish key presses.
 376  *
 377  * Sylvain Pasche <sylvain.pasche@gmail.com>
 378  */
 379 static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 380 {
 381
 382         return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
 383 }
 384
 385
 386 /* The new pinnacle PCTV remote (with the colored buttons)
 387  *
 388  * Ricardo Cerqueira <v4l@cerqueira.org>
 389  */
 390 static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 391 {
 392         /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
 393          *
 394          * this is the only value that results in 42 unique
 395          * codes < 128
 396          */
 397
 398         return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
 399 }
 400
 401 void saa7134_input_irq(struct saa7134_dev *dev)
 402 {
 403         struct card_ir *ir = dev->remote;
 404
 405         if (ir->nec_gpio) {
 406                 saa7134_nec_irq(dev);
 407         } else if (!ir->polling && !ir->rc5_gpio && !ir->raw_decode) {
 408                 build_key(dev);
 409         } else if (ir->rc5_gpio) {
 410                 saa7134_rc5_irq(dev);
 411         } else if (ir->raw_decode) {
 412                 saa7134_raw_decode_irq(dev);
 413         }
 414 }
 415
 416 static void saa7134_input_timer(unsigned long data)
 417 {
 418         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 419         struct card_ir *ir = dev->remote;
 420
 421         build_key(dev);
 422         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
 423 }
 424
 425 void ir_raw_decode_timer_end(unsigned long data)
 426 {
 427         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 428
 429         ir_raw_event_handle(dev->remote->dev);
 430 }
 431
 432 void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
 433 {
 434         if (ir->running)
 435                 return;
 436
 437         ir->running = 1;
 438         if (ir->polling) {
 439                 setup_timer(&ir->timer, saa7134_input_timer,
 440                             (unsigned long)dev);
 441                 ir->timer.expires  = jiffies + HZ;
 442                 add_timer(&ir->timer);
 443         } else if (ir->rc5_gpio) {
 444                 /* set timer_end for code completion */
 445                 init_timer(&ir->timer_end);
 446                 ir->timer_end.function = ir_rc5_timer_end;
 447                 ir->timer_end.data = (unsigned long)ir;
 448                 init_timer(&ir->timer_keyup);
 449                 ir->timer_keyup.function = ir_rc5_timer_keyup;
 450                 ir->timer_keyup.data = (unsigned long)ir;
 451                 ir->shift_by = 2;
 452                 ir->start = 0x2;
 453                 ir->addr = 0x17;
 454                 ir->rc5_key_timeout = ir_rc5_key_timeout;
 455                 ir->rc5_remote_gap = ir_rc5_remote_gap;
 456         } else if (ir->nec_gpio) {
 457                 setup_timer(&ir->timer_keyup, saa7134_nec_timer,
 458                             (unsigned long)dev);
 459                 tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
 460         } else if (ir->raw_decode) {
 461                 /* set timer_end for code completion */
 462                 init_timer(&ir->timer_end);
 463                 ir->timer_end.function = ir_raw_decode_timer_end;
 464                 ir->timer_end.data = (unsigned long)dev;
 465         }
 466 }
 467
 468 void saa7134_ir_stop(struct saa7134_dev *dev)
 469 {
 470         struct card_ir *ir = dev->remote;
 471
 472         if (!ir->running)
 473                 return;
 474         if (dev->remote->polling)
 475                 del_timer_sync(&dev->remote->timer);
 476         else if (ir->rc5_gpio)
 477                 del_timer_sync(&ir->timer_end);
 478         else if (ir->nec_gpio)
 479                 tasklet_kill(&ir->tlet);
 480         else if (ir->raw_decode)
 481                 del_timer_sync(&ir->timer_end);
 482
 483         ir->running = 0;
 484 }
 485
 486 int saa7134_ir_change_protocol(void *priv, u64 ir_type)
 487 {
 488         struct saa7134_dev *dev = priv;
 489         struct card_ir *ir = dev->remote;
 490         u32 nec_gpio, rc5_gpio;
 491
 492         if (ir_type == IR_TYPE_RC5) {
 493                 dprintk("Changing protocol to RC5\n");
 494                 nec_gpio = 0;
 495                 rc5_gpio = 1;
 496         } else if (ir_type == IR_TYPE_NEC) {
 497                 dprintk("Changing protocol to NEC\n");
 498                 nec_gpio = 1;
 499                 rc5_gpio = 0;
 500         } else {
 501                 dprintk("IR protocol type %ud is not supported\n",
 502                         (unsigned)ir_type);
 503                 return -EINVAL;
 504         }
 505
 506         if (ir->running) {
 507                 saa7134_ir_stop(dev);
 508                 ir->nec_gpio = nec_gpio;
 509                 ir->rc5_gpio = rc5_gpio;
 510                 saa7134_ir_start(dev, ir);
 511         } else {
 512                 ir->nec_gpio = nec_gpio;
 513                 ir->rc5_gpio = rc5_gpio;
 514         }
 515
 516         return 0;
 517 }
 518
 519 int saa7134_input_init1(struct saa7134_dev *dev)
 520 {
 521         struct card_ir *ir;
 522         struct input_dev *input_dev;
 523         struct ir_scancode_table *ir_codes = NULL;
 524         u32 mask_keycode = 0;
 525         u32 mask_keydown = 0;
 526         u32 mask_keyup   = 0;
 527         int polling      = 0;
 528         int rc5_gpio     = 0;
 529         int nec_gpio     = 0;
 530         int raw_decode   = 0;
 531         u64 ir_type = IR_TYPE_OTHER;
 532         int err;
 533
 534         if (dev->has_remote != SAA7134_REMOTE_GPIO)
 535                 return -ENODEV;
 536         if (disable_ir)
 537                 return -ENODEV;
 538
 539         /* detect & configure */
 540         switch (dev->board) {
 541         case SAA7134_BOARD_FLYVIDEO2000:
 542         case SAA7134_BOARD_FLYVIDEO3000:
 543         case SAA7134_BOARD_HAWELL_HW_404M7:
 544         case SAA7134_BOARD_FLYTVPLATINUM_FM:
 545         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
 546         case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
 547                 ir_codes     = &ir_codes_flyvideo_table;
 548                 mask_keycode = 0xEC00000;
 549                 mask_keydown = 0x0040000;
 550                 break;
 551         case SAA7134_BOARD_CINERGY400:
 552         case SAA7134_BOARD_CINERGY600:
 553         case SAA7134_BOARD_CINERGY600_MK3:
 554                 ir_codes     = &ir_codes_cinergy_table;
 555                 mask_keycode = 0x00003f;
 556                 mask_keyup   = 0x040000;
 557                 break;
 558         case SAA7134_BOARD_ECS_TVP3XP:
 559         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
 560                 ir_codes     = &ir_codes_eztv_table;
 561                 mask_keycode = 0x00017c;
 562                 mask_keyup   = 0x000002;
 563                 polling      = 50; // ms
 564                 break;
 565         case SAA7134_BOARD_KWORLD_XPERT:
 566         case SAA7134_BOARD_AVACSSMARTTV:
 567                 ir_codes     = &ir_codes_pixelview_table;
 568                 mask_keycode = 0x00001F;
 569                 mask_keyup   = 0x000020;
 570                 polling      = 50; // ms
 571                 break;
 572         case SAA7134_BOARD_MD2819:
 573         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
 574         case SAA7134_BOARD_AVERMEDIA_305:
 575         case SAA7134_BOARD_AVERMEDIA_307:
 576         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
 577         case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
 578         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
 579         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
 580         case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
 581         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
 582         case SAA7134_BOARD_AVERMEDIA_M102:
 583         case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
 584                 ir_codes     = &ir_codes_avermedia_table;
 585                 mask_keycode = 0x0007C8;
 586                 mask_keydown = 0x000010;
 587                 polling      = 50; // ms
 588                 /* Set GPIO pin2 to high to enable the IR controller */
 589                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
 590                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
 591                 break;
 592         case SAA7134_BOARD_AVERMEDIA_M135A:
 593                 ir_codes     = &ir_codes_avermedia_m135a_rm_jx_table;
 594                 mask_keydown = 0x0040000;
 595                 mask_keycode = 0xffff;
 596                 raw_decode   = 1;
 597                 break;
 598         case SAA7134_BOARD_AVERMEDIA_777:
 599         case SAA7134_BOARD_AVERMEDIA_A16AR:
 600                 ir_codes     = &ir_codes_avermedia_table;
 601                 mask_keycode = 0x02F200;
 602                 mask_keydown = 0x000400;
 603                 polling      = 50; // ms
 604                 /* Without this we won't receive key up events */
 605                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 606                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 607                 break;
 608         case SAA7134_BOARD_AVERMEDIA_A16D:
 609                 ir_codes     = &ir_codes_avermedia_a16d_table;
 610                 mask_keycode = 0x02F200;
 611                 mask_keydown = 0x000400;
 612                 polling      = 50; /* ms */
 613                 /* Without this we won't receive key up events */
 614                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 615                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 616                 break;
 617         case SAA7134_BOARD_KWORLD_TERMINATOR:
 618                 ir_codes     = &ir_codes_pixelview_table;
 619                 mask_keycode = 0x00001f;
 620                 mask_keyup   = 0x000060;
 621                 polling      = 50; // ms
 622                 break;
 623         case SAA7134_BOARD_MANLI_MTV001:
 624         case SAA7134_BOARD_MANLI_MTV002:
 625                 ir_codes     = &ir_codes_manli_table;
 626                 mask_keycode = 0x001f00;
 627                 mask_keyup   = 0x004000;
 628                 polling      = 50; /* ms */
 629                 break;
 630         case SAA7134_BOARD_BEHOLD_409FM:
 631         case SAA7134_BOARD_BEHOLD_401:
 632         case SAA7134_BOARD_BEHOLD_403:
 633         case SAA7134_BOARD_BEHOLD_403FM:
 634         case SAA7134_BOARD_BEHOLD_405:
 635         case SAA7134_BOARD_BEHOLD_405FM:
 636         case SAA7134_BOARD_BEHOLD_407:
 637         case SAA7134_BOARD_BEHOLD_407FM:
 638         case SAA7134_BOARD_BEHOLD_409:
 639         case SAA7134_BOARD_BEHOLD_505FM:
 640         case SAA7134_BOARD_BEHOLD_505RDS_MK5:
 641         case SAA7134_BOARD_BEHOLD_505RDS_MK3:
 642         case SAA7134_BOARD_BEHOLD_507_9FM:
 643         case SAA7134_BOARD_BEHOLD_507RDS_MK3:
 644         case SAA7134_BOARD_BEHOLD_507RDS_MK5:
 645                 ir_codes     = &ir_codes_manli_table;
 646                 mask_keycode = 0x003f00;
 647                 mask_keyup   = 0x004000;
 648                 polling      = 50; /* ms */
 649                 break;
 650         case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
 651                 ir_codes     = &ir_codes_behold_columbus_table;
 652                 mask_keycode = 0x003f00;
 653                 mask_keyup   = 0x004000;
 654                 polling      = 50; // ms
 655                 break;
 656         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
 657                 ir_codes     = &ir_codes_pctv_sedna_table;
 658                 mask_keycode = 0x001f00;
 659                 mask_keyup   = 0x004000;
 660                 polling      = 50; // ms
 661                 break;
 662         case SAA7134_BOARD_GOTVIEW_7135:
 663                 ir_codes     = &ir_codes_gotview7135_table;
 664                 mask_keycode = 0x0003CC;
 665                 mask_keydown = 0x000010;
 666                 polling      = 5; /* ms */
 667                 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
 668                 break;
 669         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
 670         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
 671         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
 672                 ir_codes     = &ir_codes_videomate_tv_pvr_table;
 673                 mask_keycode = 0x00003F;
 674                 mask_keyup   = 0x400000;
 675                 polling      = 50; // ms
 676                 break;
 677         case SAA7134_BOARD_PROTEUS_2309:
 678                 ir_codes     = &ir_codes_proteus_2309_table;
 679                 mask_keycode = 0x00007F;
 680                 mask_keyup   = 0x000080;
 681                 polling      = 50; // ms
 682                 break;
 683         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
 684         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
 685                 ir_codes     = &ir_codes_videomate_tv_pvr_table;
 686                 mask_keycode = 0x003F00;
 687                 mask_keyup   = 0x040000;
 688                 break;
 689         case SAA7134_BOARD_FLYDVBS_LR300:
 690         case SAA7134_BOARD_FLYDVBT_LR301:
 691         case SAA7134_BOARD_FLYDVBTDUO:
 692                 ir_codes     = &ir_codes_flydvb_table;
 693                 mask_keycode = 0x0001F00;
 694                 mask_keydown = 0x0040000;
 695                 break;
 696         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
 697         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
 698         case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
 699                 ir_codes     = &ir_codes_asus_pc39_table;
 700                 mask_keydown = 0x0040000;
 701                 rc5_gpio = 1;
 702                 break;
 703         case SAA7134_BOARD_ENCORE_ENLTV:
 704         case SAA7134_BOARD_ENCORE_ENLTV_FM:
 705                 ir_codes     = &ir_codes_encore_enltv_table;
 706                 mask_keycode = 0x00007f;
 707                 mask_keyup   = 0x040000;
 708                 polling      = 50; // ms
 709                 break;
 710         case SAA7134_BOARD_ENCORE_ENLTV_FM53:
 711                 ir_codes     = &ir_codes_encore_enltv_fm53_table;
 712                 mask_keydown = 0x0040000;
 713                 mask_keycode = 0x00007f;
 714                 nec_gpio = 1;
 715                 break;
 716         case SAA7134_BOARD_10MOONSTVMASTER3:
 717                 ir_codes     = &ir_codes_encore_enltv_table;
 718                 mask_keycode = 0x5f80000;
 719                 mask_keyup   = 0x8000000;
 720                 polling      = 50; //ms
 721                 break;
 722         case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
 723                 ir_codes     = &ir_codes_genius_tvgo_a11mce_table;
 724                 mask_keycode = 0xff;
 725                 mask_keydown = 0xf00000;
 726                 polling = 50; /* ms */
 727                 break;
 728         case SAA7134_BOARD_REAL_ANGEL_220:
 729                 ir_codes     = &ir_codes_real_audio_220_32_keys_table;
 730                 mask_keycode = 0x3f00;
 731                 mask_keyup   = 0x4000;
 732                 polling = 50; /* ms */
 733                 break;
 734         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
 735                 ir_codes     = &ir_codes_kworld_plus_tv_analog_table;
 736                 mask_keycode = 0x7f;
 737                 polling = 40; /* ms */
 738                 break;
 739         case SAA7134_BOARD_VIDEOMATE_S350:
 740                 ir_codes     = &ir_codes_videomate_s350_table;
 741                 mask_keycode = 0x003f00;
 742                 mask_keydown = 0x040000;
 743                 break;
 744         case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
 745                 ir_codes     = &ir_codes_winfast_table;
 746                 mask_keycode = 0x5f00;
 747                 mask_keyup   = 0x020000;
 748                 polling      = 50; /* ms */
 749                 break;
 750         break;
 751         }
 752         if (NULL == ir_codes) {
 753                 printk("%s: Oops: IR config error [card=%d]\n",
 754                        dev->name, dev->board);
 755                 return -ENODEV;
 756         }
 757
 758         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 759         input_dev = input_allocate_device();
 760         if (!ir || !input_dev) {
 761                 err = -ENOMEM;
 762                 goto err_out_free;
 763         }
 764
 765         ir->dev = input_dev;
 766         dev->remote = ir;
 767
 768         ir->running = 0;
 769
 770         /* init hardware-specific stuff */
 771         ir->mask_keycode = mask_keycode;
 772         ir->mask_keydown = mask_keydown;
 773         ir->mask_keyup   = mask_keyup;
 774         ir->polling      = polling;
 775         ir->rc5_gpio     = rc5_gpio;
 776         ir->nec_gpio     = nec_gpio;
 777         ir->raw_decode   = raw_decode;
 778
 779         /* init input device */
 780         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
 781                  saa7134_boards[dev->board].name);
 782         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
 783                  pci_name(dev->pci));
 784
 785         if (ir_codes->ir_type != IR_TYPE_OTHER && !raw_decode) {
 786                 ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC;
 787                 ir->props.priv = dev;
 788                 ir->props.change_protocol = saa7134_ir_change_protocol;
 789
 790                 /* Set IR protocol */
 791                 saa7134_ir_change_protocol(ir->props.priv, ir_codes->ir_type);
 792         }
 793         err = ir_input_init(input_dev, &ir->ir, ir_type);
 794         if (err < 0)
 795                 goto err_out_free;
 796
 797         input_dev->name = ir->name;
 798         input_dev->phys = ir->phys;
 799         input_dev->id.bustype = BUS_PCI;
 800         input_dev->id.version = 1;
 801         if (dev->pci->subsystem_vendor) {
 802                 input_dev->id.vendor  = dev->pci->subsystem_vendor;
 803                 input_dev->id.product = dev->pci->subsystem_device;
 804         } else {
 805                 input_dev->id.vendor  = dev->pci->vendor;
 806                 input_dev->id.product = dev->pci->device;
 807         }
 808         input_dev->dev.parent = &dev->pci->dev;
 809
 810         err = ir_input_register(ir->dev, ir_codes, &ir->props, MODULE_NAME);
 811         if (err)
 812                 goto err_out_stop;
 813         if (ir_codes->ir_type != IR_TYPE_OTHER) {
 814                 err = ir_raw_event_register(ir->dev);
 815                 if (err)
 816                         goto err_out_stop;
 817         }
 818
 819         saa7134_ir_start(dev, ir);
 820
 821         /* the remote isn't as bouncy as a keyboard */
 822         ir->dev->rep[REP_DELAY] = repeat_delay;
 823         ir->dev->rep[REP_PERIOD] = repeat_period;
 824
 825         return 0;
 826
 827  err_out_stop:
 828         saa7134_ir_stop(dev);
 829         dev->remote = NULL;
 830  err_out_free:
 831         kfree(ir);
 832         return err;
 833 }
 834
 835 void saa7134_input_fini(struct saa7134_dev *dev)
 836 {
 837         if (NULL == dev->remote)
 838                 return;
 839
 840         saa7134_ir_stop(dev);
 841         ir_raw_event_unregister(dev->remote->dev);
 842         ir_input_unregister(dev->remote->dev);
 843         kfree(dev->remote);
 844         dev->remote = NULL;
 845 }
 846
 847 void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
 848 {
 849         struct i2c_board_info info;
 850
 851         struct i2c_msg msg_msi = {
 852                 .addr = 0x50,
 853                 .flags = I2C_M_RD,
 854                 .len = 0,
 855                 .buf = NULL,
 856         };
 857
 858         int rc;
 859
 860         if (disable_ir) {
 861                 dprintk("IR has been disabled, not probing for i2c remote\n");
 862                 return;
 863         }
 864
 865         memset(&info, 0, sizeof(struct i2c_board_info));
 866         memset(&dev->init_data, 0, sizeof(dev->init_data));
 867         strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
 868
 869         switch (dev->board) {
 870         case SAA7134_BOARD_PINNACLE_PCTV_110i:
 871         case SAA7134_BOARD_PINNACLE_PCTV_310i:
 872                 dev->init_data.name = "Pinnacle PCTV";
 873                 if (pinnacle_remote == 0) {
 874                         dev->init_data.get_key = get_key_pinnacle_color;
 875                         dev->init_data.ir_codes = &ir_codes_pinnacle_color_table;
 876                         info.addr = 0x47;
 877                 } else {
 878                         dev->init_data.get_key = get_key_pinnacle_grey;
 879                         dev->init_data.ir_codes = &ir_codes_pinnacle_grey_table;
 880                         info.addr = 0x47;
 881                 }
 882                 break;
 883         case SAA7134_BOARD_UPMOST_PURPLE_TV:
 884                 dev->init_data.name = "Purple TV";
 885                 dev->init_data.get_key = get_key_purpletv;
 886                 dev->init_data.ir_codes = &ir_codes_purpletv_table;
 887                 info.addr = 0x7a;
 888                 break;
 889         case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
 890                 dev->init_data.name = "MSI TV@nywhere Plus";
 891                 dev->init_data.get_key = get_key_msi_tvanywhere_plus;
 892                 dev->init_data.ir_codes = &ir_codes_msi_tvanywhere_plus_table;
 893                 info.addr = 0x30;
 894                 /* MSI TV@nywhere Plus controller doesn't seem to
 895                    respond to probes unless we read something from
 896                    an existing device. Weird...
 897                    REVISIT: might no longer be needed */
 898                 rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
 899                 dprintk(KERN_DEBUG "probe 0x%02x @ %s: %s\n",
 900                         msg_msi.addr, dev->i2c_adap.name,
 901                         (1 == rc) ? "yes" : "no");
 902                 break;
 903         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
 904                 dev->init_data.name = "HVR 1110";
 905                 dev->init_data.get_key = get_key_hvr1110;
 906                 dev->init_data.ir_codes = &ir_codes_hauppauge_new_table;
 907                 info.addr = 0x71;
 908                 break;
 909         case SAA7134_BOARD_BEHOLD_607FM_MK3:
 910         case SAA7134_BOARD_BEHOLD_607FM_MK5:
 911         case SAA7134_BOARD_BEHOLD_609FM_MK3:
 912         case SAA7134_BOARD_BEHOLD_609FM_MK5:
 913         case SAA7134_BOARD_BEHOLD_607RDS_MK3:
 914         case SAA7134_BOARD_BEHOLD_607RDS_MK5:
 915         case SAA7134_BOARD_BEHOLD_609RDS_MK3:
 916         case SAA7134_BOARD_BEHOLD_609RDS_MK5:
 917         case SAA7134_BOARD_BEHOLD_M6:
 918         case SAA7134_BOARD_BEHOLD_M63:
 919         case SAA7134_BOARD_BEHOLD_M6_EXTRA:
 920         case SAA7134_BOARD_BEHOLD_H6:
 921         case SAA7134_BOARD_BEHOLD_X7:
 922                 dev->init_data.name = "BeholdTV";
 923                 dev->init_data.get_key = get_key_beholdm6xx;
 924                 dev->init_data.ir_codes = &ir_codes_behold_table;
 925                 dev->init_data.type = IR_TYPE_NEC;
 926                 info.addr = 0x2d;
 927                 break;
 928         case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
 929         case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
 930                 info.addr = 0x40;
 931                 break;
 932         case SAA7134_BOARD_FLYDVB_TRIO:
 933                 dev->init_data.name = "FlyDVB Trio";
 934                 dev->init_data.get_key = get_key_flydvb_trio;
 935                 dev->init_data.ir_codes = &ir_codes_flydvb_table;
 936                 info.addr = 0x0b;
 937                 break;
 938         default:
 939                 dprintk("No I2C IR support for board %x\n", dev->board);
 940                 return;
 941         }
 942
 943         if (dev->init_data.name)
 944                 info.platform_data = &dev->init_data;
 945         i2c_new_device(&dev->i2c_adap, &info);
 946 }
 947
 948 static int saa7134_raw_decode_irq(struct saa7134_dev *dev)
 949 {
 950         struct card_ir  *ir = dev->remote;
 951         unsigned long   timeout;
 952         int count, pulse, oldpulse;
 953
 954         /* Disable IR IRQ line */
 955         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 956
 957         /* Generate initial event */
 958         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 959         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 960         pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
 961         ir_raw_event_store(dev->remote->dev, pulse? IR_PULSE : IR_SPACE);
 962
 963 #if 1
 964         /* Wait up to 10 ms for event change */
 965         oldpulse = pulse;
 966         for (count = 0; count < 1000; count++)  {
 967                 udelay(10);
 968                 /* rising SAA7134_GPIO_GPRESCAN reads the status */
 969                 saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 970                 saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 971                 pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
 972                         & ir->mask_keydown;
 973                 if (pulse != oldpulse)
 974                         break;
 975         }
 976
 977         /* Store final event */
 978         ir_raw_event_store(dev->remote->dev, pulse? IR_PULSE : IR_SPACE);
 979 #endif
 980         /* Wait 15 ms before deciding to do something else */
 981         timeout = jiffies + jiffies_to_msecs(15);
 982         mod_timer(&ir->timer_end, timeout);
 983
 984         /* Enable IR IRQ line */
 985         saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 986
 987         return 1;
 988 }
 989
 990 static int saa7134_rc5_irq(struct saa7134_dev *dev)
 991 {
 992         struct card_ir *ir = dev->remote;
 993         struct timeval tv;
 994         u32 gap;
 995         unsigned long current_jiffies, timeout;
 996
 997         /* get time of bit */
 998         current_jiffies = jiffies;
 999         do_gettimeofday(&tv);
1000
1001         /* avoid overflow with gap >1s */
1002         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
1003                 gap = 200000;
1004         } else {
1005                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
1006                     tv.tv_usec - ir->base_time.tv_usec;
1007         }
1008
1009         /* active code => add bit */
1010         if (ir->active) {
1011                 /* only if in the code (otherwise spurious IRQ or timer
1012                    late) */
1013                 if (ir->last_bit < 28) {
1014                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
1015                             ir_rc5_remote_gap;
1016                         ir->code |= 1 << ir->last_bit;
1017                 }
1018                 /* starting new code */
1019         } else {
1020                 ir->active = 1;
1021                 ir->code = 0;
1022                 ir->base_time = tv;
1023                 ir->last_bit = 0;
1024
1025                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
1026                 mod_timer(&ir->timer_end, timeout);
1027         }
1028
1029         return 1;
1030 }
1031
1032 /* On NEC protocol, One has 2.25 ms, and zero has 1.125 ms
1033    The first pulse (start) has 9 + 4.5 ms
1034  */
1035
1036 static void saa7134_nec_timer(unsigned long data)
1037 {
1038         struct saa7134_dev *dev = (struct saa7134_dev *) data;
1039         struct card_ir *ir = dev->remote;
1040
1041         dprintk("Cancel key repeat\n");
1042
1043         ir_input_nokey(ir->dev, &ir->ir);
1044 }
1045
1046 static void nec_task(unsigned long data)
1047 {
1048         struct saa7134_dev *dev = (struct saa7134_dev *) data;
1049         struct card_ir *ir;
1050         struct timeval tv;
1051         int count, pulse, oldpulse, gap;
1052         u32 ircode = 0, not_code = 0;
1053         int ngap = 0;
1054
1055         if (!data) {
1056                 printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
1057                 /* GPIO will be kept disabled */
1058                 return;
1059         }
1060
1061         ir = dev->remote;
1062
1063         /* rising SAA7134_GPIO_GPRESCAN reads the status */
1064         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1065         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1066
1067         oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
1068         pulse = oldpulse;
1069
1070         do_gettimeofday(&tv);
1071         ir->base_time = tv;
1072
1073         /* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
1074            Unfortunately, using IRQ to decode pulse didn't work, since it uses
1075            a pulse train of 38KHz. This means one pulse on each 52 us
1076          */
1077         do {
1078                 /* Wait until the end of pulse/space or 5 ms */
1079                 for (count = 0; count < 500; count++)  {
1080                         udelay(10);
1081                         /* rising SAA7134_GPIO_GPRESCAN reads the status */
1082                         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1083                         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1084                         pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
1085                                 & ir->mask_keydown;
1086                         if (pulse != oldpulse)
1087                                 break;
1088                 }
1089
1090                 do_gettimeofday(&tv);
1091                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
1092                                 tv.tv_usec - ir->base_time.tv_usec;
1093
1094                 if (!pulse) {
1095                         /* Bit 0 has 560 us, while bit 1 has 1120 us.
1096                            Do something only if bit == 1
1097                          */
1098                         if (ngap && (gap > 560 + 280)) {
1099                                 unsigned int shift = ngap - 1;
1100
1101                                 /* Address first, then command */
1102                                 if (shift < 8) {
1103                                         shift += 8;
1104                                         ircode |= 1 << shift;
1105                                 } else if (shift < 16) {
1106                                         not_code |= 1 << shift;
1107                                 } else if (shift < 24) {
1108                                         shift -= 16;
1109                                         ircode |= 1 << shift;
1110                                 } else {
1111                                         shift -= 24;
1112                                         not_code |= 1 << shift;
1113                                 }
1114                         }
1115                         ngap++;
1116                 }
1117
1118
1119                 ir->base_time = tv;
1120
1121                 /* TIMEOUT - Long pulse */
1122                 if (gap >= 5000)
1123                         break;
1124                 oldpulse = pulse;
1125         } while (ngap < 32);
1126
1127         if (ngap == 32) {
1128                 /* FIXME: should check if not_code == ~ircode */
1129                 ir->code = ir_extract_bits(ircode, ir->mask_keycode);
1130
1131                 dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
1132                          ir->code, ircode, not_code);
1133
1134                 ir_input_keydown(ir->dev, &ir->ir, ir->code);
1135         } else
1136                 dprintk("Repeat last key\n");
1137
1138         /* Keep repeating the last key */
1139         mod_timer(&ir->timer_keyup, jiffies + msecs_to_jiffies(150));
1140
1141         saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
1142 }
1143
1144 static int saa7134_nec_irq(struct saa7134_dev *dev)
1145 {
1146         struct card_ir *ir = dev->remote;
1147
1148         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
1149         tasklet_schedule(&ir->tlet);
1150
1151         return 1;
1152 }