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                 i2cdprintk("get_key_flydvb_trio: "
 145                            "ir->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                 i2cdprintk("get_key_msi_tvanywhere_plus: "
 199                            "ir->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;
 404
 405         if (!dev || !dev->remote)
 406                 return;
 407
 408         ir = dev->remote;
 409         if (!ir->running)
 410                 return;
 411
 412         if (ir->nec_gpio) {
 413                 saa7134_nec_irq(dev);
 414         } else if (!ir->polling && !ir->rc5_gpio && !ir->raw_decode) {
 415                 build_key(dev);
 416         } else if (ir->rc5_gpio) {
 417                 saa7134_rc5_irq(dev);
 418         } else if (ir->raw_decode) {
 419                 saa7134_raw_decode_irq(dev);
 420         }
 421 }
 422
 423 static void saa7134_input_timer(unsigned long data)
 424 {
 425         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 426         struct card_ir *ir = dev->remote;
 427
 428         build_key(dev);
 429         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
 430 }
 431
 432 static void ir_raw_decode_timer_end(unsigned long data)
 433 {
 434         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 435         struct card_ir *ir = dev->remote;
 436
 437         ir_raw_event_handle(dev->remote->dev);
 438
 439         ir->active = 0;
 440 }
 441
 442 static int __saa7134_ir_start(void *priv)
 443 {
 444         struct saa7134_dev *dev = priv;
 445         struct card_ir *ir;
 446
 447         if (!dev)
 448                 return -EINVAL;
 449
 450         ir  = dev->remote;
 451         if (!ir)
 452                 return -EINVAL;
 453
 454         if (ir->running)
 455                 return 0;
 456
 457         ir->running = 1;
 458         if (ir->polling) {
 459                 setup_timer(&ir->timer, saa7134_input_timer,
 460                             (unsigned long)dev);
 461                 ir->timer.expires  = jiffies + HZ;
 462                 add_timer(&ir->timer);
 463         } else if (ir->rc5_gpio) {
 464                 /* set timer_end for code completion */
 465                 init_timer(&ir->timer_end);
 466                 ir->timer_end.function = ir_rc5_timer_end;
 467                 ir->timer_end.data = (unsigned long)ir;
 468                 init_timer(&ir->timer_keyup);
 469                 ir->timer_keyup.function = ir_rc5_timer_keyup;
 470                 ir->timer_keyup.data = (unsigned long)ir;
 471                 ir->shift_by = 2;
 472                 ir->start = 0x2;
 473                 ir->addr = 0x17;
 474                 ir->rc5_key_timeout = ir_rc5_key_timeout;
 475                 ir->rc5_remote_gap = ir_rc5_remote_gap;
 476         } else if (ir->nec_gpio) {
 477                 setup_timer(&ir->timer_keyup, saa7134_nec_timer,
 478                             (unsigned long)dev);
 479                 tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
 480         } else if (ir->raw_decode) {
 481                 /* set timer_end for code completion */
 482                 init_timer(&ir->timer_end);
 483                 ir->timer_end.function = ir_raw_decode_timer_end;
 484                 ir->timer_end.data = (unsigned long)dev;
 485                 ir->active = 0;
 486         }
 487
 488         return 0;
 489 }
 490
 491 static void __saa7134_ir_stop(void *priv)
 492 {
 493         struct saa7134_dev *dev = priv;
 494         struct card_ir *ir;
 495
 496         if (!dev)
 497                 return;
 498
 499         ir  = dev->remote;
 500         if (!ir)
 501                 return;
 502
 503         if (!ir->running)
 504                 return;
 505         if (dev->remote->polling)
 506                 del_timer_sync(&dev->remote->timer);
 507         else if (ir->rc5_gpio)
 508                 del_timer_sync(&ir->timer_end);
 509         else if (ir->nec_gpio)
 510                 tasklet_kill(&ir->tlet);
 511         else if (ir->raw_decode) {
 512                 del_timer_sync(&ir->timer_end);
 513                 ir->active = 0;
 514         }
 515
 516         ir->running = 0;
 517
 518         return;
 519 }
 520
 521 int saa7134_ir_start(struct saa7134_dev *dev)
 522 {
 523         if (dev->remote->users)
 524                 return __saa7134_ir_start(dev);
 525
 526         return 0;
 527 }
 528
 529 void saa7134_ir_stop(struct saa7134_dev *dev)
 530 {
 531         if (dev->remote->users)
 532                 __saa7134_ir_stop(dev);
 533 }
 534
 535 static int saa7134_ir_open(void *priv)
 536 {
 537         struct saa7134_dev *dev = priv;
 538
 539         dev->remote->users++;
 540         return __saa7134_ir_start(dev);
 541 }
 542
 543 static void saa7134_ir_close(void *priv)
 544 {
 545         struct saa7134_dev *dev = priv;
 546
 547         dev->remote->users--;
 548         if (!dev->remote->users)
 549                 __saa7134_ir_stop(dev);
 550 }
 551
 552
 553 static int saa7134_ir_change_protocol(void *priv, u64 ir_type)
 554 {
 555         struct saa7134_dev *dev = priv;
 556         struct card_ir *ir = dev->remote;
 557         u32 nec_gpio, rc5_gpio;
 558
 559         if (ir_type == IR_TYPE_RC5) {
 560                 dprintk("Changing protocol to RC5\n");
 561                 nec_gpio = 0;
 562                 rc5_gpio = 1;
 563         } else if (ir_type == IR_TYPE_NEC) {
 564                 dprintk("Changing protocol to NEC\n");
 565                 nec_gpio = 1;
 566                 rc5_gpio = 0;
 567         } else {
 568                 dprintk("IR protocol type %ud is not supported\n",
 569                         (unsigned)ir_type);
 570                 return -EINVAL;
 571         }
 572
 573         if (ir->running) {
 574                 saa7134_ir_stop(dev);
 575                 ir->nec_gpio = nec_gpio;
 576                 ir->rc5_gpio = rc5_gpio;
 577                 saa7134_ir_start(dev);
 578         } else {
 579                 ir->nec_gpio = nec_gpio;
 580                 ir->rc5_gpio = rc5_gpio;
 581         }
 582
 583         return 0;
 584 }
 585
 586 int saa7134_input_init1(struct saa7134_dev *dev)
 587 {
 588         struct card_ir *ir;
 589         struct input_dev *input_dev;
 590         char *ir_codes = NULL;
 591         u32 mask_keycode = 0;
 592         u32 mask_keydown = 0;
 593         u32 mask_keyup   = 0;
 594         int polling      = 0;
 595         int rc5_gpio     = 0;
 596         int nec_gpio     = 0;
 597         int raw_decode   = 0;
 598         int allow_protocol_change = 0;
 599         u64 ir_type = IR_TYPE_OTHER;
 600         int err;
 601
 602         if (dev->has_remote != SAA7134_REMOTE_GPIO)
 603                 return -ENODEV;
 604         if (disable_ir)
 605                 return -ENODEV;
 606
 607         /* detect & configure */
 608         switch (dev->board) {
 609         case SAA7134_BOARD_FLYVIDEO2000:
 610         case SAA7134_BOARD_FLYVIDEO3000:
 611         case SAA7134_BOARD_FLYTVPLATINUM_FM:
 612         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
 613         case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
 614                 ir_codes     = RC_MAP_FLYVIDEO;
 615                 mask_keycode = 0xEC00000;
 616                 mask_keydown = 0x0040000;
 617                 break;
 618         case SAA7134_BOARD_CINERGY400:
 619         case SAA7134_BOARD_CINERGY600:
 620         case SAA7134_BOARD_CINERGY600_MK3:
 621                 ir_codes     = RC_MAP_CINERGY;
 622                 mask_keycode = 0x00003f;
 623                 mask_keyup   = 0x040000;
 624                 break;
 625         case SAA7134_BOARD_ECS_TVP3XP:
 626         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
 627                 ir_codes     = RC_MAP_EZTV;
 628                 mask_keycode = 0x00017c;
 629                 mask_keyup   = 0x000002;
 630                 polling      = 50; // ms
 631                 break;
 632         case SAA7134_BOARD_KWORLD_XPERT:
 633         case SAA7134_BOARD_AVACSSMARTTV:
 634                 ir_codes     = RC_MAP_PIXELVIEW;
 635                 mask_keycode = 0x00001F;
 636                 mask_keyup   = 0x000020;
 637                 polling      = 50; // ms
 638                 break;
 639         case SAA7134_BOARD_MD2819:
 640         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
 641         case SAA7134_BOARD_AVERMEDIA_305:
 642         case SAA7134_BOARD_AVERMEDIA_307:
 643         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
 644         case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
 645         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
 646         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
 647         case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
 648         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
 649         case SAA7134_BOARD_AVERMEDIA_M102:
 650         case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
 651                 ir_codes     = RC_MAP_AVERMEDIA;
 652                 mask_keycode = 0x0007C8;
 653                 mask_keydown = 0x000010;
 654                 polling      = 50; // ms
 655                 /* Set GPIO pin2 to high to enable the IR controller */
 656                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
 657                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
 658                 break;
 659         case SAA7134_BOARD_AVERMEDIA_M135A:
 660                 ir_codes     = RC_MAP_AVERMEDIA_M135A;
 661                 mask_keydown = 0x0040000;       /* Enable GPIO18 line on both edges */
 662                 mask_keyup   = 0x0040000;
 663                 mask_keycode = 0xffff;
 664                 raw_decode   = 1;
 665                 break;
 666         case SAA7134_BOARD_AVERMEDIA_M733A:
 667                 ir_codes     = RC_MAP_AVERMEDIA_M733A_RM_K6;
 668                 mask_keydown = 0x0040000;
 669                 mask_keyup   = 0x0040000;
 670                 mask_keycode = 0xffff;
 671                 raw_decode   = 1;
 672                 break;
 673         case SAA7134_BOARD_AVERMEDIA_777:
 674         case SAA7134_BOARD_AVERMEDIA_A16AR:
 675                 ir_codes     = RC_MAP_AVERMEDIA;
 676                 mask_keycode = 0x02F200;
 677                 mask_keydown = 0x000400;
 678                 polling      = 50; // ms
 679                 /* Without this we won't receive key up events */
 680                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 681                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 682                 break;
 683         case SAA7134_BOARD_AVERMEDIA_A16D:
 684                 ir_codes     = RC_MAP_AVERMEDIA_A16D;
 685                 mask_keycode = 0x02F200;
 686                 mask_keydown = 0x000400;
 687                 polling      = 50; /* ms */
 688                 /* Without this we won't receive key up events */
 689                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 690                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 691                 break;
 692         case SAA7134_BOARD_KWORLD_TERMINATOR:
 693                 ir_codes     = RC_MAP_PIXELVIEW;
 694                 mask_keycode = 0x00001f;
 695                 mask_keyup   = 0x000060;
 696                 polling      = 50; // ms
 697                 break;
 698         case SAA7134_BOARD_MANLI_MTV001:
 699         case SAA7134_BOARD_MANLI_MTV002:
 700                 ir_codes     = RC_MAP_MANLI;
 701                 mask_keycode = 0x001f00;
 702                 mask_keyup   = 0x004000;
 703                 polling      = 50; /* ms */
 704                 break;
 705         case SAA7134_BOARD_BEHOLD_409FM:
 706         case SAA7134_BOARD_BEHOLD_401:
 707         case SAA7134_BOARD_BEHOLD_403:
 708         case SAA7134_BOARD_BEHOLD_403FM:
 709         case SAA7134_BOARD_BEHOLD_405:
 710         case SAA7134_BOARD_BEHOLD_405FM:
 711         case SAA7134_BOARD_BEHOLD_407:
 712         case SAA7134_BOARD_BEHOLD_407FM:
 713         case SAA7134_BOARD_BEHOLD_409:
 714         case SAA7134_BOARD_BEHOLD_505FM:
 715         case SAA7134_BOARD_BEHOLD_505RDS_MK5:
 716         case SAA7134_BOARD_BEHOLD_505RDS_MK3:
 717         case SAA7134_BOARD_BEHOLD_507_9FM:
 718         case SAA7134_BOARD_BEHOLD_507RDS_MK3:
 719         case SAA7134_BOARD_BEHOLD_507RDS_MK5:
 720                 ir_codes     = RC_MAP_MANLI;
 721                 mask_keycode = 0x003f00;
 722                 mask_keyup   = 0x004000;
 723                 polling      = 50; /* ms */
 724                 break;
 725         case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
 726                 ir_codes     = RC_MAP_BEHOLD_COLUMBUS;
 727                 mask_keycode = 0x003f00;
 728                 mask_keyup   = 0x004000;
 729                 polling      = 50; // ms
 730                 break;
 731         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
 732                 ir_codes     = RC_MAP_PCTV_SEDNA;
 733                 mask_keycode = 0x001f00;
 734                 mask_keyup   = 0x004000;
 735                 polling      = 50; // ms
 736                 break;
 737         case SAA7134_BOARD_GOTVIEW_7135:
 738                 ir_codes     = RC_MAP_GOTVIEW7135;
 739                 mask_keycode = 0x0003CC;
 740                 mask_keydown = 0x000010;
 741                 polling      = 5; /* ms */
 742                 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
 743                 break;
 744         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
 745         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
 746         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
 747                 ir_codes     = RC_MAP_VIDEOMATE_TV_PVR;
 748                 mask_keycode = 0x00003F;
 749                 mask_keyup   = 0x400000;
 750                 polling      = 50; // ms
 751                 break;
 752         case SAA7134_BOARD_PROTEUS_2309:
 753                 ir_codes     = RC_MAP_PROTEUS_2309;
 754                 mask_keycode = 0x00007F;
 755                 mask_keyup   = 0x000080;
 756                 polling      = 50; // ms
 757                 break;
 758         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
 759         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
 760                 ir_codes     = RC_MAP_VIDEOMATE_TV_PVR;
 761                 mask_keycode = 0x003F00;
 762                 mask_keyup   = 0x040000;
 763                 break;
 764         case SAA7134_BOARD_FLYDVBS_LR300:
 765         case SAA7134_BOARD_FLYDVBT_LR301:
 766         case SAA7134_BOARD_FLYDVBTDUO:
 767                 ir_codes     = RC_MAP_FLYDVB;
 768                 mask_keycode = 0x0001F00;
 769                 mask_keydown = 0x0040000;
 770                 break;
 771         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
 772         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
 773         case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
 774                 ir_codes     = RC_MAP_ASUS_PC39;
 775                 mask_keydown = 0x0040000;       /* Enable GPIO18 line on both edges */
 776                 mask_keyup   = 0x0040000;
 777                 mask_keycode = 0xffff;
 778                 raw_decode   = 1;
 779                 break;
 780         case SAA7134_BOARD_ENCORE_ENLTV:
 781         case SAA7134_BOARD_ENCORE_ENLTV_FM:
 782                 ir_codes     = RC_MAP_ENCORE_ENLTV;
 783                 mask_keycode = 0x00007f;
 784                 mask_keyup   = 0x040000;
 785                 polling      = 50; // ms
 786                 break;
 787         case SAA7134_BOARD_ENCORE_ENLTV_FM53:
 788                 ir_codes     = RC_MAP_ENCORE_ENLTV_FM53;
 789                 mask_keydown = 0x0040000;
 790                 mask_keycode = 0x00007f;
 791                 nec_gpio = 1;
 792                 break;
 793         case SAA7134_BOARD_10MOONSTVMASTER3:
 794                 ir_codes     = RC_MAP_ENCORE_ENLTV;
 795                 mask_keycode = 0x5f80000;
 796                 mask_keyup   = 0x8000000;
 797                 polling      = 50; //ms
 798                 break;
 799         case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
 800                 ir_codes     = RC_MAP_GENIUS_TVGO_A11MCE;
 801                 mask_keycode = 0xff;
 802                 mask_keydown = 0xf00000;
 803                 polling = 50; /* ms */
 804                 break;
 805         case SAA7134_BOARD_REAL_ANGEL_220:
 806                 ir_codes     = RC_MAP_REAL_AUDIO_220_32_KEYS;
 807                 mask_keycode = 0x3f00;
 808                 mask_keyup   = 0x4000;
 809                 polling = 50; /* ms */
 810                 break;
 811         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
 812                 ir_codes     = RC_MAP_KWORLD_PLUS_TV_ANALOG;
 813                 mask_keycode = 0x7f;
 814                 polling = 40; /* ms */
 815                 break;
 816         case SAA7134_BOARD_VIDEOMATE_S350:
 817                 ir_codes     = RC_MAP_VIDEOMATE_S350;
 818                 mask_keycode = 0x003f00;
 819                 mask_keydown = 0x040000;
 820                 break;
 821         case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
 822                 ir_codes     = RC_MAP_WINFAST;
 823                 mask_keycode = 0x5f00;
 824                 mask_keyup   = 0x020000;
 825                 polling      = 50; /* ms */
 826                 break;
 827         }
 828         if (NULL == ir_codes) {
 829                 printk("%s: Oops: IR config error [card=%d]\n",
 830                        dev->name, dev->board);
 831                 return -ENODEV;
 832         }
 833
 834         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 835         input_dev = input_allocate_device();
 836         if (!ir || !input_dev) {
 837                 err = -ENOMEM;
 838                 goto err_out_free;
 839         }
 840
 841         ir->dev = input_dev;
 842         dev->remote = ir;
 843
 844         ir->running = 0;
 845
 846         /* init hardware-specific stuff */
 847         ir->mask_keycode = mask_keycode;
 848         ir->mask_keydown = mask_keydown;
 849         ir->mask_keyup   = mask_keyup;
 850         ir->polling      = polling;
 851         ir->rc5_gpio     = rc5_gpio;
 852         ir->nec_gpio     = nec_gpio;
 853         ir->raw_decode   = raw_decode;
 854
 855         /* init input device */
 856         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
 857                  saa7134_boards[dev->board].name);
 858         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
 859                  pci_name(dev->pci));
 860
 861
 862         ir->props.priv = dev;
 863         ir->props.open = saa7134_ir_open;
 864         ir->props.close = saa7134_ir_close;
 865
 866         if (raw_decode)
 867                 ir->props.driver_type = RC_DRIVER_IR_RAW;
 868
 869         if (!raw_decode && allow_protocol_change) {
 870                 ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC;
 871                 ir->props.change_protocol = saa7134_ir_change_protocol;
 872         }
 873
 874         err = ir_input_init(input_dev, &ir->ir, ir_type);
 875         if (err < 0)
 876                 goto err_out_free;
 877
 878         input_dev->name = ir->name;
 879         input_dev->phys = ir->phys;
 880         input_dev->id.bustype = BUS_PCI;
 881         input_dev->id.version = 1;
 882         if (dev->pci->subsystem_vendor) {
 883                 input_dev->id.vendor  = dev->pci->subsystem_vendor;
 884                 input_dev->id.product = dev->pci->subsystem_device;
 885         } else {
 886                 input_dev->id.vendor  = dev->pci->vendor;
 887                 input_dev->id.product = dev->pci->device;
 888         }
 889         input_dev->dev.parent = &dev->pci->dev;
 890
 891         err = ir_input_register(ir->dev, ir_codes, &ir->props, MODULE_NAME);
 892         if (err)
 893                 goto err_out_free;
 894
 895         /* the remote isn't as bouncy as a keyboard */
 896         ir->dev->rep[REP_DELAY] = repeat_delay;
 897         ir->dev->rep[REP_PERIOD] = repeat_period;
 898
 899         return 0;
 900
 901 err_out_free:
 902         dev->remote = NULL;
 903         kfree(ir);
 904         return err;
 905 }
 906
 907 void saa7134_input_fini(struct saa7134_dev *dev)
 908 {
 909         if (NULL == dev->remote)
 910                 return;
 911
 912         saa7134_ir_stop(dev);
 913         ir_input_unregister(dev->remote->dev);
 914         kfree(dev->remote);
 915         dev->remote = NULL;
 916 }
 917
 918 void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
 919 {
 920         struct i2c_board_info info;
 921
 922         struct i2c_msg msg_msi = {
 923                 .addr = 0x50,
 924                 .flags = I2C_M_RD,
 925                 .len = 0,
 926                 .buf = NULL,
 927         };
 928
 929         int rc;
 930
 931         if (disable_ir) {
 932                 dprintk("IR has been disabled, not probing for i2c remote\n");
 933                 return;
 934         }
 935
 936         memset(&info, 0, sizeof(struct i2c_board_info));
 937         memset(&dev->init_data, 0, sizeof(dev->init_data));
 938         strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
 939
 940         switch (dev->board) {
 941         case SAA7134_BOARD_PINNACLE_PCTV_110i:
 942         case SAA7134_BOARD_PINNACLE_PCTV_310i:
 943                 dev->init_data.name = "Pinnacle PCTV";
 944                 if (pinnacle_remote == 0) {
 945                         dev->init_data.get_key = get_key_pinnacle_color;
 946                         dev->init_data.ir_codes = RC_MAP_PINNACLE_COLOR;
 947                         info.addr = 0x47;
 948                 } else {
 949                         dev->init_data.get_key = get_key_pinnacle_grey;
 950                         dev->init_data.ir_codes = RC_MAP_PINNACLE_GREY;
 951                         info.addr = 0x47;
 952                 }
 953                 break;
 954         case SAA7134_BOARD_UPMOST_PURPLE_TV:
 955                 dev->init_data.name = "Purple TV";
 956                 dev->init_data.get_key = get_key_purpletv;
 957                 dev->init_data.ir_codes = RC_MAP_PURPLETV;
 958                 info.addr = 0x7a;
 959                 break;
 960         case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
 961                 dev->init_data.name = "MSI TV@nywhere Plus";
 962                 dev->init_data.get_key = get_key_msi_tvanywhere_plus;
 963                 dev->init_data.ir_codes = RC_MAP_MSI_TVANYWHERE_PLUS;
 964                 /*
 965                  * MSI TV@nyware Plus requires more frequent polling
 966                  * otherwise it will miss some keypresses
 967                  */
 968                 dev->init_data.polling_interval = 50;
 969                 info.addr = 0x30;
 970                 /* MSI TV@nywhere Plus controller doesn't seem to
 971                    respond to probes unless we read something from
 972                    an existing device. Weird...
 973                    REVISIT: might no longer be needed */
 974                 rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
 975                 dprintk(KERN_DEBUG "probe 0x%02x @ %s: %s\n",
 976                         msg_msi.addr, dev->i2c_adap.name,
 977                         (1 == rc) ? "yes" : "no");
 978                 break;
 979         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
 980                 dev->init_data.name = "HVR 1110";
 981                 dev->init_data.get_key = get_key_hvr1110;
 982                 dev->init_data.ir_codes = RC_MAP_HAUPPAUGE_NEW;
 983                 info.addr = 0x71;
 984                 break;
 985         case SAA7134_BOARD_BEHOLD_607FM_MK3:
 986         case SAA7134_BOARD_BEHOLD_607FM_MK5:
 987         case SAA7134_BOARD_BEHOLD_609FM_MK3:
 988         case SAA7134_BOARD_BEHOLD_609FM_MK5:
 989         case SAA7134_BOARD_BEHOLD_607RDS_MK3:
 990         case SAA7134_BOARD_BEHOLD_607RDS_MK5:
 991         case SAA7134_BOARD_BEHOLD_609RDS_MK3:
 992         case SAA7134_BOARD_BEHOLD_609RDS_MK5:
 993         case SAA7134_BOARD_BEHOLD_M6:
 994         case SAA7134_BOARD_BEHOLD_M63:
 995         case SAA7134_BOARD_BEHOLD_M6_EXTRA:
 996         case SAA7134_BOARD_BEHOLD_H6:
 997         case SAA7134_BOARD_BEHOLD_X7:
 998         case SAA7134_BOARD_BEHOLD_H7:
 999         case SAA7134_BOARD_BEHOLD_A7:
1000                 dev->init_data.name = "BeholdTV";
1001                 dev->init_data.get_key = get_key_beholdm6xx;
1002                 dev->init_data.ir_codes = RC_MAP_BEHOLD;
1003                 dev->init_data.type = IR_TYPE_NEC;
1004                 info.addr = 0x2d;
1005                 break;
1006         case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
1007         case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
1008                 info.addr = 0x40;
1009                 break;
1010         case SAA7134_BOARD_FLYDVB_TRIO:
1011                 dev->init_data.name = "FlyDVB Trio";
1012                 dev->init_data.get_key = get_key_flydvb_trio;
1013                 dev->init_data.ir_codes = RC_MAP_FLYDVB;
1014                 info.addr = 0x0b;
1015                 break;
1016         default:
1017                 dprintk("No I2C IR support for board %x\n", dev->board);
1018                 return;
1019         }
1020
1021         if (dev->init_data.name)
1022                 info.platform_data = &dev->init_data;
1023         i2c_new_device(&dev->i2c_adap, &info);
1024 }
1025
1026 static int saa7134_raw_decode_irq(struct saa7134_dev *dev)
1027 {
1028         struct card_ir  *ir = dev->remote;
1029         unsigned long   timeout;
1030         int space;
1031
1032         /* Generate initial event */
1033         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1034         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1035         space = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
1036         ir_raw_event_store_edge(dev->remote->dev, space ? IR_SPACE : IR_PULSE);
1037
1038
1039         /*
1040          * Wait 15 ms from the start of the first IR event before processing
1041          * the event. This time is enough for NEC protocol. May need adjustments
1042          * to work with other protocols.
1043          */
1044         if (!ir->active) {
1045                 timeout = jiffies + jiffies_to_msecs(15);
1046                 mod_timer(&ir->timer_end, timeout);
1047                 ir->active = 1;
1048         }
1049
1050         return 1;
1051 }
1052
1053 static int saa7134_rc5_irq(struct saa7134_dev *dev)
1054 {
1055         struct card_ir *ir = dev->remote;
1056         struct timeval tv;
1057         u32 gap;
1058         unsigned long current_jiffies, timeout;
1059
1060         /* get time of bit */
1061         current_jiffies = jiffies;
1062         do_gettimeofday(&tv);
1063
1064         /* avoid overflow with gap >1s */
1065         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
1066                 gap = 200000;
1067         } else {
1068                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
1069                     tv.tv_usec - ir->base_time.tv_usec;
1070         }
1071
1072         /* active code => add bit */
1073         if (ir->active) {
1074                 /* only if in the code (otherwise spurious IRQ or timer
1075                    late) */
1076                 if (ir->last_bit < 28) {
1077                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
1078                             ir_rc5_remote_gap;
1079                         ir->code |= 1 << ir->last_bit;
1080                 }
1081                 /* starting new code */
1082         } else {
1083                 ir->active = 1;
1084                 ir->code = 0;
1085                 ir->base_time = tv;
1086                 ir->last_bit = 0;
1087
1088                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
1089                 mod_timer(&ir->timer_end, timeout);
1090         }
1091
1092         return 1;
1093 }
1094
1095 /* On NEC protocol, One has 2.25 ms, and zero has 1.125 ms
1096    The first pulse (start) has 9 + 4.5 ms
1097  */
1098
1099 static void saa7134_nec_timer(unsigned long data)
1100 {
1101         struct saa7134_dev *dev = (struct saa7134_dev *) data;
1102         struct card_ir *ir = dev->remote;
1103
1104         dprintk("Cancel key repeat\n");
1105
1106         ir_input_nokey(ir->dev, &ir->ir);
1107 }
1108
1109 static void nec_task(unsigned long data)
1110 {
1111         struct saa7134_dev *dev = (struct saa7134_dev *) data;
1112         struct card_ir *ir;
1113         struct timeval tv;
1114         int count, pulse, oldpulse, gap;
1115         u32 ircode = 0, not_code = 0;
1116         int ngap = 0;
1117
1118         if (!data) {
1119                 printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
1120                 /* GPIO will be kept disabled */
1121                 return;
1122         }
1123
1124         ir = dev->remote;
1125
1126         /* rising SAA7134_GPIO_GPRESCAN reads the status */
1127         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1128         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1129
1130         oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
1131         pulse = oldpulse;
1132
1133         do_gettimeofday(&tv);
1134         ir->base_time = tv;
1135
1136         /* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
1137            Unfortunately, using IRQ to decode pulse didn't work, since it uses
1138            a pulse train of 38KHz. This means one pulse on each 52 us
1139          */
1140         do {
1141                 /* Wait until the end of pulse/space or 5 ms */
1142                 for (count = 0; count < 500; count++)  {
1143                         udelay(10);
1144                         /* rising SAA7134_GPIO_GPRESCAN reads the status */
1145                         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1146                         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1147                         pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
1148                                 & ir->mask_keydown;
1149                         if (pulse != oldpulse)
1150                                 break;
1151                 }
1152
1153                 do_gettimeofday(&tv);
1154                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
1155                                 tv.tv_usec - ir->base_time.tv_usec;
1156
1157                 if (!pulse) {
1158                         /* Bit 0 has 560 us, while bit 1 has 1120 us.
1159                            Do something only if bit == 1
1160                          */
1161                         if (ngap && (gap > 560 + 280)) {
1162                                 unsigned int shift = ngap - 1;
1163
1164                                 /* Address first, then command */
1165                                 if (shift < 8) {
1166                                         shift += 8;
1167                                         ircode |= 1 << shift;
1168                                 } else if (shift < 16) {
1169                                         not_code |= 1 << shift;
1170                                 } else if (shift < 24) {
1171                                         shift -= 16;
1172                                         ircode |= 1 << shift;
1173                                 } else {
1174                                         shift -= 24;
1175                                         not_code |= 1 << shift;
1176                                 }
1177                         }
1178                         ngap++;
1179                 }
1180
1181
1182                 ir->base_time = tv;
1183
1184                 /* TIMEOUT - Long pulse */
1185                 if (gap >= 5000)
1186                         break;
1187                 oldpulse = pulse;
1188         } while (ngap < 32);
1189
1190         if (ngap == 32) {
1191                 /* FIXME: should check if not_code == ~ircode */
1192                 ir->code = ir_extract_bits(ircode, ir->mask_keycode);
1193
1194                 dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
1195                          ir->code, ircode, not_code);
1196
1197                 ir_input_keydown(ir->dev, &ir->ir, ir->code);
1198         } else
1199                 dprintk("Repeat last key\n");
1200
1201         /* Keep repeating the last key */
1202         mod_timer(&ir->timer_keyup, jiffies + msecs_to_jiffies(150));
1203
1204         saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
1205 }
1206
1207 static int saa7134_nec_irq(struct saa7134_dev *dev)
1208 {
1209         struct card_ir *ir = dev->remote;
1210
1211         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
1212         tasklet_schedule(&ir->tlet);
1213
1214         return 1;
1215 }