Pileus Git - ~andy/linux/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/slab.h>
  26
  27 #include "saa7134-reg.h"
  28 #include "saa7134.h"
  29
  30 #define MODULE_NAME "saa7134"
  31
  32 static unsigned int disable_ir;
  33 module_param(disable_ir, int, 0444);
  34 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
  35
  36 static unsigned int ir_debug;
  37 module_param(ir_debug, int, 0644);
  38 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
  39
  40 static int pinnacle_remote;
  41 module_param(pinnacle_remote, int, 0644);    /* Choose Pinnacle PCTV remote */
  42 MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
  43
  44 static int ir_rc5_remote_gap = 885;
  45 module_param(ir_rc5_remote_gap, int, 0644);
  46
  47 static unsigned int disable_other_ir;
  48 module_param(disable_other_ir, int, 0644);
  49 MODULE_PARM_DESC(disable_other_ir, "disable full codes of "
  50     "alternative remotes from other manufacturers");
  51
  52 #define dprintk(fmt, arg...)    if (ir_debug) \
  53         printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
  54 #define i2cdprintk(fmt, arg...)    if (ir_debug) \
  55         printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg)
  56
  57 /* Helper functions for RC5 and NEC decoding at GPIO16 or GPIO18 */
  58 static int saa7134_rc5_irq(struct saa7134_dev *dev);
  59 static int saa7134_nec_irq(struct saa7134_dev *dev);
  60 static int saa7134_raw_decode_irq(struct saa7134_dev *dev);
  61 static void nec_task(unsigned long data);
  62
  63 /* -------------------- GPIO generic keycode builder -------------------- */
  64
  65 static int build_key(struct saa7134_dev *dev)
  66 {
  67         struct card_ir *ir = dev->remote;
  68         u32 gpio, data;
  69
  70         /* here comes the additional handshake steps for some cards */
  71         switch (dev->board) {
  72         case SAA7134_BOARD_GOTVIEW_7135:
  73                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
  74                 saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
  75                 break;
  76         }
  77         /* rising SAA7134_GPIO_GPRESCAN reads the status */
  78         saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  79         saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  80
  81         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
  82         if (ir->polling) {
  83                 if (ir->last_gpio == gpio)
  84                         return 0;
  85                 ir->last_gpio = gpio;
  86         }
  87
  88         data = ir_extract_bits(gpio, ir->mask_keycode);
  89         dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
  90                 gpio, ir->mask_keycode, data);
  91
  92         switch (dev->board) {
  93         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
  94                 if (data == ir->mask_keycode)
  95                         ir_keyup(ir->dev);
  96                 else
  97                         ir_keydown_notimeout(ir->dev, data, 0);
  98                 return 0;
  99         }
 100
 101         if (ir->polling) {
 102                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 103                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 104                         ir_keydown_notimeout(ir->dev, data, 0);
 105                 } else {
 106                         ir_keyup(ir->dev);
 107                 }
 108         }
 109         else {  /* IRQ driven mode - handle key press and release in one go */
 110                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 111                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 112                         ir_keydown_notimeout(ir->dev, data, 0);
 113                         ir_keyup(ir->dev);
 114                 }
 115         }
 116
 117         return 0;
 118 }
 119
 120 /* --------------------- Chip specific I2C key builders ----------------- */
 121
 122 static int get_key_flydvb_trio(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 123 {
 124         int gpio;
 125         int attempt = 0;
 126         unsigned char b;
 127
 128         /* We need this to access GPI Used by the saa_readl macro. */
 129         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 130
 131         if (dev == NULL) {
 132                 i2cdprintk("get_key_flydvb_trio: "
 133                            "ir->c->adapter->algo_data is NULL!\n");
 134                 return -EIO;
 135         }
 136
 137         /* rising SAA7134_GPIGPRESCAN reads the status */
 138         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 139         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 140
 141         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 142
 143         if (0x40000 & ~gpio)
 144                 return 0; /* No button press */
 145
 146         /* No button press - only before first key pressed */
 147         if (b == 0xFF)
 148                 return 0;
 149
 150         /* poll IR chip */
 151         /* weak up the IR chip */
 152         b = 0;
 153
 154         while (1 != i2c_master_send(ir->c, &b, 1)) {
 155                 if ((attempt++) < 10) {
 156                         /*
 157                          * wait a bit for next attempt -
 158                          * I don't know how make it better
 159                          */
 160                         msleep(10);
 161                         continue;
 162                 }
 163                 i2cdprintk("send wake up byte to pic16C505 (IR chip)"
 164                            "failed %dx\n", attempt);
 165                 return -EIO;
 166         }
 167         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 168                 i2cdprintk("read error\n");
 169                 return -EIO;
 170         }
 171
 172         *ir_key = b;
 173         *ir_raw = b;
 174         return 1;
 175 }
 176
 177 static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key,
 178                                        u32 *ir_raw)
 179 {
 180         unsigned char b;
 181         int gpio;
 182
 183         /* <dev> is needed to access GPIO. Used by the saa_readl macro. */
 184         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 185         if (dev == NULL) {
 186                 i2cdprintk("get_key_msi_tvanywhere_plus: "
 187                            "ir->c->adapter->algo_data is NULL!\n");
 188                 return -EIO;
 189         }
 190
 191         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 192
 193         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 194         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 195
 196         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 197
 198         /* GPIO&0x40 is pulsed low when a button is pressed. Don't do
 199            I2C receive if gpio&0x40 is not low. */
 200
 201         if (gpio & 0x40)
 202                 return 0;       /* No button press */
 203
 204         /* GPIO says there is a button press. Get it. */
 205
 206         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 207                 i2cdprintk("read error\n");
 208                 return -EIO;
 209         }
 210
 211         /* No button press */
 212
 213         if (b == 0xff)
 214                 return 0;
 215
 216         /* Button pressed */
 217
 218         dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
 219         *ir_key = b;
 220         *ir_raw = b;
 221         return 1;
 222 }
 223
 224 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 225 {
 226         unsigned char b;
 227
 228         /* poll IR chip */
 229         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 230                 i2cdprintk("read error\n");
 231                 return -EIO;
 232         }
 233
 234         /* no button press */
 235         if (b==0)
 236                 return 0;
 237
 238         /* repeating */
 239         if (b & 0x80)
 240                 return 1;
 241
 242         *ir_key = b;
 243         *ir_raw = b;
 244         return 1;
 245 }
 246
 247 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 248 {
 249         unsigned char buf[5], cod4, code3, code4;
 250
 251         /* poll IR chip */
 252         if (5 != i2c_master_recv(ir->c, buf, 5))
 253                 return -EIO;
 254
 255         cod4    = buf[4];
 256         code4   = (cod4 >> 2);
 257         code3   = buf[3];
 258         if (code3 == 0)
 259                 /* no key pressed */
 260                 return 0;
 261
 262         /* return key */
 263         *ir_key = code4;
 264         *ir_raw = code4;
 265         return 1;
 266 }
 267
 268
 269 static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 270 {
 271         unsigned char data[12];
 272         u32 gpio;
 273
 274         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 275
 276         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 277         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 278         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 279
 280         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 281
 282         if (0x400000 & ~gpio)
 283                 return 0; /* No button press */
 284
 285         ir->c->addr = 0x5a >> 1;
 286
 287         if (12 != i2c_master_recv(ir->c, data, 12)) {
 288                 i2cdprintk("read error\n");
 289                 return -EIO;
 290         }
 291         /* IR of this card normally decode signals NEC-standard from
 292          * - Sven IHOO MT 5.1R remote. xxyye718
 293          * - Sven DVD HD-10xx remote. xxyyf708
 294          * - BBK ...
 295          * - mayby others
 296          * So, skip not our, if disable full codes mode.
 297          */
 298         if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
 299                 return 0;
 300
 301         /* Wrong data decode fix */
 302         if (data[9] != (unsigned char)(~data[8]))
 303                 return 0;
 304
 305         *ir_key = data[9];
 306         *ir_raw = data[9];
 307
 308         return 1;
 309 }
 310
 311 /* Common (grey or coloured) pinnacle PCTV remote handling
 312  *
 313  */
 314 static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
 315                             int parity_offset, int marker, int code_modulo)
 316 {
 317         unsigned char b[4];
 318         unsigned int start = 0,parity = 0,code = 0;
 319
 320         /* poll IR chip */
 321         if (4 != i2c_master_recv(ir->c, b, 4)) {
 322                 i2cdprintk("read error\n");
 323                 return -EIO;
 324         }
 325
 326         for (start = 0; start < ARRAY_SIZE(b); start++) {
 327                 if (b[start] == marker) {
 328                         code=b[(start+parity_offset + 1) % 4];
 329                         parity=b[(start+parity_offset) % 4];
 330                 }
 331         }
 332
 333         /* Empty Request */
 334         if (parity == 0)
 335                 return 0;
 336
 337         /* Repeating... */
 338         if (ir->old == parity)
 339                 return 0;
 340
 341         ir->old = parity;
 342
 343         /* drop special codes when a key is held down a long time for the grey controller
 344            In this case, the second bit of the code is asserted */
 345         if (marker == 0xfe && (code & 0x40))
 346                 return 0;
 347
 348         code %= code_modulo;
 349
 350         *ir_raw = code;
 351         *ir_key = code;
 352
 353         i2cdprintk("Pinnacle PCTV key %02x\n", code);
 354
 355         return 1;
 356 }
 357
 358 /* The grey pinnacle PCTV remote
 359  *
 360  *  There are one issue with this remote:
 361  *   - I2c packet does not change when the same key is pressed quickly. The workaround
 362  *     is to hold down each key for about half a second, so that another code is generated
 363  *     in the i2c packet, and the function can distinguish key presses.
 364  *
 365  * Sylvain Pasche <sylvain.pasche@gmail.com>
 366  */
 367 static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 368 {
 369
 370         return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
 371 }
 372
 373
 374 /* The new pinnacle PCTV remote (with the colored buttons)
 375  *
 376  * Ricardo Cerqueira <v4l@cerqueira.org>
 377  */
 378 static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 379 {
 380         /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
 381          *
 382          * this is the only value that results in 42 unique
 383          * codes < 128
 384          */
 385
 386         return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
 387 }
 388
 389 void saa7134_input_irq(struct saa7134_dev *dev)
 390 {
 391         struct card_ir *ir;
 392
 393         if (!dev || !dev->remote)
 394                 return;
 395
 396         ir = dev->remote;
 397         if (!ir->running)
 398                 return;
 399
 400         if (ir->nec_gpio) {
 401                 saa7134_nec_irq(dev);
 402         } else if (!ir->polling && !ir->rc5_gpio && !ir->raw_decode) {
 403                 build_key(dev);
 404         } else if (ir->rc5_gpio) {
 405                 saa7134_rc5_irq(dev);
 406         } else if (ir->raw_decode) {
 407                 saa7134_raw_decode_irq(dev);
 408         }
 409 }
 410
 411 static void saa7134_input_timer(unsigned long data)
 412 {
 413         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 414         struct card_ir *ir = dev->remote;
 415
 416         build_key(dev);
 417         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
 418 }
 419
 420 static void ir_raw_decode_timer_end(unsigned long data)
 421 {
 422         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 423         struct card_ir *ir = dev->remote;
 424
 425         ir_raw_event_handle(dev->remote->dev);
 426
 427         ir->active = 0;
 428 }
 429
 430 static int __saa7134_ir_start(void *priv)
 431 {
 432         struct saa7134_dev *dev = priv;
 433         struct card_ir *ir;
 434
 435         if (!dev)
 436                 return -EINVAL;
 437
 438         ir  = dev->remote;
 439         if (!ir)
 440                 return -EINVAL;
 441
 442         if (ir->running)
 443                 return 0;
 444
 445         ir->running = 1;
 446         if (ir->polling) {
 447                 setup_timer(&ir->timer, saa7134_input_timer,
 448                             (unsigned long)dev);
 449                 ir->timer.expires  = jiffies + HZ;
 450                 add_timer(&ir->timer);
 451         } else if (ir->rc5_gpio) {
 452                 /* set timer_end for code completion */
 453                 init_timer(&ir->timer_end);
 454                 ir->timer_end.function = ir_rc5_timer_end;
 455                 ir->timer_end.data = (unsigned long)ir;
 456                 ir->shift_by = 2;
 457                 ir->start = 0x2;
 458                 ir->addr = 0x17;
 459                 ir->rc5_remote_gap = ir_rc5_remote_gap;
 460         } else if (ir->nec_gpio) {
 461                 tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
 462         } else if (ir->raw_decode) {
 463                 /* set timer_end for code completion */
 464                 init_timer(&ir->timer_end);
 465                 ir->timer_end.function = ir_raw_decode_timer_end;
 466                 ir->timer_end.data = (unsigned long)dev;
 467                 ir->active = 0;
 468         }
 469
 470         return 0;
 471 }
 472
 473 static void __saa7134_ir_stop(void *priv)
 474 {
 475         struct saa7134_dev *dev = priv;
 476         struct card_ir *ir;
 477
 478         if (!dev)
 479                 return;
 480
 481         ir  = dev->remote;
 482         if (!ir)
 483                 return;
 484
 485         if (!ir->running)
 486                 return;
 487         if (dev->remote->polling)
 488                 del_timer_sync(&dev->remote->timer);
 489         else if (ir->rc5_gpio)
 490                 del_timer_sync(&ir->timer_end);
 491         else if (ir->nec_gpio)
 492                 tasklet_kill(&ir->tlet);
 493         else if (ir->raw_decode) {
 494                 del_timer_sync(&ir->timer_end);
 495                 ir->active = 0;
 496         }
 497
 498         ir->running = 0;
 499
 500         return;
 501 }
 502
 503 int saa7134_ir_start(struct saa7134_dev *dev)
 504 {
 505         if (dev->remote->users)
 506                 return __saa7134_ir_start(dev);
 507
 508         return 0;
 509 }
 510
 511 void saa7134_ir_stop(struct saa7134_dev *dev)
 512 {
 513         if (dev->remote->users)
 514                 __saa7134_ir_stop(dev);
 515 }
 516
 517 static int saa7134_ir_open(struct rc_dev *rc)
 518 {
 519         struct saa7134_dev *dev = rc->priv;
 520
 521         dev->remote->users++;
 522         return __saa7134_ir_start(dev);
 523 }
 524
 525 static void saa7134_ir_close(struct rc_dev *rc)
 526 {
 527         struct saa7134_dev *dev = rc->priv;
 528
 529         dev->remote->users--;
 530         if (!dev->remote->users)
 531                 __saa7134_ir_stop(dev);
 532 }
 533
 534
 535 static int saa7134_ir_change_protocol(struct rc_dev *rc, u64 ir_type)
 536 {
 537         struct saa7134_dev *dev = rc->priv;
 538         struct card_ir *ir = dev->remote;
 539         u32 nec_gpio, rc5_gpio;
 540
 541         if (ir_type == IR_TYPE_RC5) {
 542                 dprintk("Changing protocol to RC5\n");
 543                 nec_gpio = 0;
 544                 rc5_gpio = 1;
 545         } else if (ir_type == IR_TYPE_NEC) {
 546                 dprintk("Changing protocol to NEC\n");
 547                 nec_gpio = 1;
 548                 rc5_gpio = 0;
 549         } else {
 550                 dprintk("IR protocol type %ud is not supported\n",
 551                         (unsigned)ir_type);
 552                 return -EINVAL;
 553         }
 554
 555         if (ir->running) {
 556                 saa7134_ir_stop(dev);
 557                 ir->nec_gpio = nec_gpio;
 558                 ir->rc5_gpio = rc5_gpio;
 559                 saa7134_ir_start(dev);
 560         } else {
 561                 ir->nec_gpio = nec_gpio;
 562                 ir->rc5_gpio = rc5_gpio;
 563         }
 564
 565         return 0;
 566 }
 567
 568 int saa7134_input_init1(struct saa7134_dev *dev)
 569 {
 570         struct card_ir *ir;
 571         struct rc_dev *rc;
 572         char *ir_codes = NULL;
 573         u32 mask_keycode = 0;
 574         u32 mask_keydown = 0;
 575         u32 mask_keyup   = 0;
 576         int polling      = 0;
 577         int rc5_gpio     = 0;
 578         int nec_gpio     = 0;
 579         int raw_decode   = 0;
 580         int allow_protocol_change = 0;
 581         int err;
 582
 583         if (dev->has_remote != SAA7134_REMOTE_GPIO)
 584                 return -ENODEV;
 585         if (disable_ir)
 586                 return -ENODEV;
 587
 588         /* detect & configure */
 589         switch (dev->board) {
 590         case SAA7134_BOARD_FLYVIDEO2000:
 591         case SAA7134_BOARD_FLYVIDEO3000:
 592         case SAA7134_BOARD_FLYTVPLATINUM_FM:
 593         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
 594         case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
 595                 ir_codes     = RC_MAP_FLYVIDEO;
 596                 mask_keycode = 0xEC00000;
 597                 mask_keydown = 0x0040000;
 598                 break;
 599         case SAA7134_BOARD_CINERGY400:
 600         case SAA7134_BOARD_CINERGY600:
 601         case SAA7134_BOARD_CINERGY600_MK3:
 602                 ir_codes     = RC_MAP_CINERGY;
 603                 mask_keycode = 0x00003f;
 604                 mask_keyup   = 0x040000;
 605                 break;
 606         case SAA7134_BOARD_ECS_TVP3XP:
 607         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
 608                 ir_codes     = RC_MAP_EZTV;
 609                 mask_keycode = 0x00017c;
 610                 mask_keyup   = 0x000002;
 611                 polling      = 50; // ms
 612                 break;
 613         case SAA7134_BOARD_KWORLD_XPERT:
 614         case SAA7134_BOARD_AVACSSMARTTV:
 615                 ir_codes     = RC_MAP_PIXELVIEW;
 616                 mask_keycode = 0x00001F;
 617                 mask_keyup   = 0x000020;
 618                 polling      = 50; // ms
 619                 break;
 620         case SAA7134_BOARD_MD2819:
 621         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
 622         case SAA7134_BOARD_AVERMEDIA_305:
 623         case SAA7134_BOARD_AVERMEDIA_307:
 624         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
 625         case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
 626         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
 627         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
 628         case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
 629         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
 630         case SAA7134_BOARD_AVERMEDIA_M102:
 631         case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
 632                 ir_codes     = RC_MAP_AVERMEDIA;
 633                 mask_keycode = 0x0007C8;
 634                 mask_keydown = 0x000010;
 635                 polling      = 50; // ms
 636                 /* Set GPIO pin2 to high to enable the IR controller */
 637                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
 638                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
 639                 break;
 640         case SAA7134_BOARD_AVERMEDIA_M135A:
 641                 ir_codes     = RC_MAP_AVERMEDIA_M135A;
 642                 mask_keydown = 0x0040000;       /* Enable GPIO18 line on both edges */
 643                 mask_keyup   = 0x0040000;
 644                 mask_keycode = 0xffff;
 645                 raw_decode   = 1;
 646                 break;
 647         case SAA7134_BOARD_AVERMEDIA_M733A:
 648                 ir_codes     = RC_MAP_AVERMEDIA_M733A_RM_K6;
 649                 mask_keydown = 0x0040000;
 650                 mask_keyup   = 0x0040000;
 651                 mask_keycode = 0xffff;
 652                 raw_decode   = 1;
 653                 break;
 654         case SAA7134_BOARD_AVERMEDIA_777:
 655         case SAA7134_BOARD_AVERMEDIA_A16AR:
 656                 ir_codes     = RC_MAP_AVERMEDIA;
 657                 mask_keycode = 0x02F200;
 658                 mask_keydown = 0x000400;
 659                 polling      = 50; // ms
 660                 /* Without this we won't receive key up events */
 661                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 662                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 663                 break;
 664         case SAA7134_BOARD_AVERMEDIA_A16D:
 665                 ir_codes     = RC_MAP_AVERMEDIA_A16D;
 666                 mask_keycode = 0x02F200;
 667                 mask_keydown = 0x000400;
 668                 polling      = 50; /* ms */
 669                 /* Without this we won't receive key up events */
 670                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 671                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 672                 break;
 673         case SAA7134_BOARD_KWORLD_TERMINATOR:
 674                 ir_codes     = RC_MAP_PIXELVIEW;
 675                 mask_keycode = 0x00001f;
 676                 mask_keyup   = 0x000060;
 677                 polling      = 50; // ms
 678                 break;
 679         case SAA7134_BOARD_MANLI_MTV001:
 680         case SAA7134_BOARD_MANLI_MTV002:
 681                 ir_codes     = RC_MAP_MANLI;
 682                 mask_keycode = 0x001f00;
 683                 mask_keyup   = 0x004000;
 684                 polling      = 50; /* ms */
 685                 break;
 686         case SAA7134_BOARD_BEHOLD_409FM:
 687         case SAA7134_BOARD_BEHOLD_401:
 688         case SAA7134_BOARD_BEHOLD_403:
 689         case SAA7134_BOARD_BEHOLD_403FM:
 690         case SAA7134_BOARD_BEHOLD_405:
 691         case SAA7134_BOARD_BEHOLD_405FM:
 692         case SAA7134_BOARD_BEHOLD_407:
 693         case SAA7134_BOARD_BEHOLD_407FM:
 694         case SAA7134_BOARD_BEHOLD_409:
 695         case SAA7134_BOARD_BEHOLD_505FM:
 696         case SAA7134_BOARD_BEHOLD_505RDS_MK5:
 697         case SAA7134_BOARD_BEHOLD_505RDS_MK3:
 698         case SAA7134_BOARD_BEHOLD_507_9FM:
 699         case SAA7134_BOARD_BEHOLD_507RDS_MK3:
 700         case SAA7134_BOARD_BEHOLD_507RDS_MK5:
 701                 ir_codes     = RC_MAP_MANLI;
 702                 mask_keycode = 0x003f00;
 703                 mask_keyup   = 0x004000;
 704                 polling      = 50; /* ms */
 705                 break;
 706         case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
 707                 ir_codes     = RC_MAP_BEHOLD_COLUMBUS;
 708                 mask_keycode = 0x003f00;
 709                 mask_keyup   = 0x004000;
 710                 polling      = 50; // ms
 711                 break;
 712         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
 713                 ir_codes     = RC_MAP_PCTV_SEDNA;
 714                 mask_keycode = 0x001f00;
 715                 mask_keyup   = 0x004000;
 716                 polling      = 50; // ms
 717                 break;
 718         case SAA7134_BOARD_GOTVIEW_7135:
 719                 ir_codes     = RC_MAP_GOTVIEW7135;
 720                 mask_keycode = 0x0003CC;
 721                 mask_keydown = 0x000010;
 722                 polling      = 5; /* ms */
 723                 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
 724                 break;
 725         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
 726         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
 727         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
 728                 ir_codes     = RC_MAP_VIDEOMATE_TV_PVR;
 729                 mask_keycode = 0x00003F;
 730                 mask_keyup   = 0x400000;
 731                 polling      = 50; // ms
 732                 break;
 733         case SAA7134_BOARD_PROTEUS_2309:
 734                 ir_codes     = RC_MAP_PROTEUS_2309;
 735                 mask_keycode = 0x00007F;
 736                 mask_keyup   = 0x000080;
 737                 polling      = 50; // ms
 738                 break;
 739         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
 740         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
 741                 ir_codes     = RC_MAP_VIDEOMATE_TV_PVR;
 742                 mask_keycode = 0x003F00;
 743                 mask_keyup   = 0x040000;
 744                 break;
 745         case SAA7134_BOARD_FLYDVBS_LR300:
 746         case SAA7134_BOARD_FLYDVBT_LR301:
 747         case SAA7134_BOARD_FLYDVBTDUO:
 748                 ir_codes     = RC_MAP_FLYDVB;
 749                 mask_keycode = 0x0001F00;
 750                 mask_keydown = 0x0040000;
 751                 break;
 752         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
 753         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
 754         case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
 755                 ir_codes     = RC_MAP_ASUS_PC39;
 756                 mask_keydown = 0x0040000;       /* Enable GPIO18 line on both edges */
 757                 mask_keyup   = 0x0040000;
 758                 mask_keycode = 0xffff;
 759                 raw_decode   = 1;
 760                 break;
 761         case SAA7134_BOARD_ENCORE_ENLTV:
 762         case SAA7134_BOARD_ENCORE_ENLTV_FM:
 763                 ir_codes     = RC_MAP_ENCORE_ENLTV;
 764                 mask_keycode = 0x00007f;
 765                 mask_keyup   = 0x040000;
 766                 polling      = 50; // ms
 767                 break;
 768         case SAA7134_BOARD_ENCORE_ENLTV_FM53:
 769                 ir_codes     = RC_MAP_ENCORE_ENLTV_FM53;
 770                 mask_keydown = 0x0040000;
 771                 mask_keycode = 0x00007f;
 772                 nec_gpio = 1;
 773                 break;
 774         case SAA7134_BOARD_10MOONSTVMASTER3:
 775                 ir_codes     = RC_MAP_ENCORE_ENLTV;
 776                 mask_keycode = 0x5f80000;
 777                 mask_keyup   = 0x8000000;
 778                 polling      = 50; //ms
 779                 break;
 780         case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
 781                 ir_codes     = RC_MAP_GENIUS_TVGO_A11MCE;
 782                 mask_keycode = 0xff;
 783                 mask_keydown = 0xf00000;
 784                 polling = 50; /* ms */
 785                 break;
 786         case SAA7134_BOARD_REAL_ANGEL_220:
 787                 ir_codes     = RC_MAP_REAL_AUDIO_220_32_KEYS;
 788                 mask_keycode = 0x3f00;
 789                 mask_keyup   = 0x4000;
 790                 polling = 50; /* ms */
 791                 break;
 792         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
 793                 ir_codes     = RC_MAP_KWORLD_PLUS_TV_ANALOG;
 794                 mask_keycode = 0x7f;
 795                 polling = 40; /* ms */
 796                 break;
 797         case SAA7134_BOARD_VIDEOMATE_S350:
 798                 ir_codes     = RC_MAP_VIDEOMATE_S350;
 799                 mask_keycode = 0x003f00;
 800                 mask_keydown = 0x040000;
 801                 break;
 802         case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
 803                 ir_codes     = RC_MAP_WINFAST;
 804                 mask_keycode = 0x5f00;
 805                 mask_keyup   = 0x020000;
 806                 polling      = 50; /* ms */
 807                 break;
 808         }
 809         if (NULL == ir_codes) {
 810                 printk("%s: Oops: IR config error [card=%d]\n",
 811                        dev->name, dev->board);
 812                 return -ENODEV;
 813         }
 814
 815         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 816         rc = rc_allocate_device();
 817         if (!ir || !rc) {
 818                 err = -ENOMEM;
 819                 goto err_out_free;
 820         }
 821
 822         ir->dev = rc;
 823         dev->remote = ir;
 824
 825         ir->running = 0;
 826
 827         /* init hardware-specific stuff */
 828         ir->mask_keycode = mask_keycode;
 829         ir->mask_keydown = mask_keydown;
 830         ir->mask_keyup   = mask_keyup;
 831         ir->polling      = polling;
 832         ir->rc5_gpio     = rc5_gpio;
 833         ir->nec_gpio     = nec_gpio;
 834         ir->raw_decode   = raw_decode;
 835
 836         /* init input device */
 837         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
 838                  saa7134_boards[dev->board].name);
 839         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
 840                  pci_name(dev->pci));
 841
 842         rc->priv = dev;
 843         rc->open = saa7134_ir_open;
 844         rc->close = saa7134_ir_close;
 845         if (raw_decode)
 846                 rc->driver_type = RC_DRIVER_IR_RAW;
 847
 848         if (!raw_decode && allow_protocol_change) {
 849                 rc->allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC;
 850                 rc->change_protocol = saa7134_ir_change_protocol;
 851         }
 852
 853         rc->input_name = ir->name;
 854         rc->input_phys = ir->phys;
 855         rc->input_id.bustype = BUS_PCI;
 856         rc->input_id.version = 1;
 857         if (dev->pci->subsystem_vendor) {
 858                 rc->input_id.vendor  = dev->pci->subsystem_vendor;
 859                 rc->input_id.product = dev->pci->subsystem_device;
 860         } else {
 861                 rc->input_id.vendor  = dev->pci->vendor;
 862                 rc->input_id.product = dev->pci->device;
 863         }
 864         rc->dev.parent = &dev->pci->dev;
 865         rc->map_name = ir_codes;
 866         rc->driver_name = MODULE_NAME;
 867
 868         err = rc_register_device(rc);
 869         if (err)
 870                 goto err_out_free;
 871
 872         return 0;
 873
 874 err_out_free:
 875         rc_free_device(rc);
 876         dev->remote = NULL;
 877         kfree(ir);
 878         return err;
 879 }
 880
 881 void saa7134_input_fini(struct saa7134_dev *dev)
 882 {
 883         if (NULL == dev->remote)
 884                 return;
 885
 886         saa7134_ir_stop(dev);
 887         rc_unregister_device(dev->remote->dev);
 888         kfree(dev->remote);
 889         dev->remote = NULL;
 890 }
 891
 892 void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
 893 {
 894         struct i2c_board_info info;
 895
 896         struct i2c_msg msg_msi = {
 897                 .addr = 0x50,
 898                 .flags = I2C_M_RD,
 899                 .len = 0,
 900                 .buf = NULL,
 901         };
 902
 903         int rc;
 904
 905         if (disable_ir) {
 906                 dprintk("IR has been disabled, not probing for i2c remote\n");
 907                 return;
 908         }
 909
 910         memset(&info, 0, sizeof(struct i2c_board_info));
 911         memset(&dev->init_data, 0, sizeof(dev->init_data));
 912         strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
 913
 914         switch (dev->board) {
 915         case SAA7134_BOARD_PINNACLE_PCTV_110i:
 916         case SAA7134_BOARD_PINNACLE_PCTV_310i:
 917                 dev->init_data.name = "Pinnacle PCTV";
 918                 if (pinnacle_remote == 0) {
 919                         dev->init_data.get_key = get_key_pinnacle_color;
 920                         dev->init_data.ir_codes = RC_MAP_PINNACLE_COLOR;
 921                         info.addr = 0x47;
 922                 } else {
 923                         dev->init_data.get_key = get_key_pinnacle_grey;
 924                         dev->init_data.ir_codes = RC_MAP_PINNACLE_GREY;
 925                         info.addr = 0x47;
 926                 }
 927                 break;
 928         case SAA7134_BOARD_UPMOST_PURPLE_TV:
 929                 dev->init_data.name = "Purple TV";
 930                 dev->init_data.get_key = get_key_purpletv;
 931                 dev->init_data.ir_codes = RC_MAP_PURPLETV;
 932                 info.addr = 0x7a;
 933                 break;
 934         case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
 935                 dev->init_data.name = "MSI TV@nywhere Plus";
 936                 dev->init_data.get_key = get_key_msi_tvanywhere_plus;
 937                 dev->init_data.ir_codes = RC_MAP_MSI_TVANYWHERE_PLUS;
 938                 /*
 939                  * MSI TV@nyware Plus requires more frequent polling
 940                  * otherwise it will miss some keypresses
 941                  */
 942                 dev->init_data.polling_interval = 50;
 943                 info.addr = 0x30;
 944                 /* MSI TV@nywhere Plus controller doesn't seem to
 945                    respond to probes unless we read something from
 946                    an existing device. Weird...
 947                    REVISIT: might no longer be needed */
 948                 rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
 949                 dprintk("probe 0x%02x @ %s: %s\n",
 950                         msg_msi.addr, dev->i2c_adap.name,
 951                         (1 == rc) ? "yes" : "no");
 952                 break;
 953         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
 954                 dev->init_data.name = "HVR 1110";
 955                 dev->init_data.get_key = get_key_hvr1110;
 956                 dev->init_data.ir_codes = RC_MAP_HAUPPAUGE_NEW;
 957                 info.addr = 0x71;
 958                 break;
 959         case SAA7134_BOARD_BEHOLD_607FM_MK3:
 960         case SAA7134_BOARD_BEHOLD_607FM_MK5:
 961         case SAA7134_BOARD_BEHOLD_609FM_MK3:
 962         case SAA7134_BOARD_BEHOLD_609FM_MK5:
 963         case SAA7134_BOARD_BEHOLD_607RDS_MK3:
 964         case SAA7134_BOARD_BEHOLD_607RDS_MK5:
 965         case SAA7134_BOARD_BEHOLD_609RDS_MK3:
 966         case SAA7134_BOARD_BEHOLD_609RDS_MK5:
 967         case SAA7134_BOARD_BEHOLD_M6:
 968         case SAA7134_BOARD_BEHOLD_M63:
 969         case SAA7134_BOARD_BEHOLD_M6_EXTRA:
 970         case SAA7134_BOARD_BEHOLD_H6:
 971         case SAA7134_BOARD_BEHOLD_X7:
 972         case SAA7134_BOARD_BEHOLD_H7:
 973         case SAA7134_BOARD_BEHOLD_A7:
 974                 dev->init_data.name = "BeholdTV";
 975                 dev->init_data.get_key = get_key_beholdm6xx;
 976                 dev->init_data.ir_codes = RC_MAP_BEHOLD;
 977                 dev->init_data.type = IR_TYPE_NEC;
 978                 info.addr = 0x2d;
 979                 break;
 980         case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
 981         case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
 982                 info.addr = 0x40;
 983                 break;
 984         case SAA7134_BOARD_FLYDVB_TRIO:
 985                 dev->init_data.name = "FlyDVB Trio";
 986                 dev->init_data.get_key = get_key_flydvb_trio;
 987                 dev->init_data.ir_codes = RC_MAP_FLYDVB;
 988                 info.addr = 0x0b;
 989                 break;
 990         default:
 991                 dprintk("No I2C IR support for board %x\n", dev->board);
 992                 return;
 993         }
 994
 995         if (dev->init_data.name)
 996                 info.platform_data = &dev->init_data;
 997         i2c_new_device(&dev->i2c_adap, &info);
 998 }
 999
1000 static int saa7134_raw_decode_irq(struct saa7134_dev *dev)
1001 {
1002         struct card_ir  *ir = dev->remote;
1003         unsigned long   timeout;
1004         int space;
1005
1006         /* Generate initial event */
1007         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1008         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1009         space = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
1010         ir_raw_event_store_edge(dev->remote->dev, space ? IR_SPACE : IR_PULSE);
1011
1012
1013         /*
1014          * Wait 15 ms from the start of the first IR event before processing
1015          * the event. This time is enough for NEC protocol. May need adjustments
1016          * to work with other protocols.
1017          */
1018         if (!ir->active) {
1019                 timeout = jiffies + jiffies_to_msecs(15);
1020                 mod_timer(&ir->timer_end, timeout);
1021                 ir->active = 1;
1022         }
1023
1024         return 1;
1025 }
1026
1027 static int saa7134_rc5_irq(struct saa7134_dev *dev)
1028 {
1029         struct card_ir *ir = dev->remote;
1030         struct timeval tv;
1031         u32 gap;
1032         unsigned long current_jiffies, timeout;
1033
1034         /* get time of bit */
1035         current_jiffies = jiffies;
1036         do_gettimeofday(&tv);
1037
1038         /* avoid overflow with gap >1s */
1039         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
1040                 gap = 200000;
1041         } else {
1042                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
1043                     tv.tv_usec - ir->base_time.tv_usec;
1044         }
1045
1046         /* active code => add bit */
1047         if (ir->active) {
1048                 /* only if in the code (otherwise spurious IRQ or timer
1049                    late) */
1050                 if (ir->last_bit < 28) {
1051                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
1052                             ir_rc5_remote_gap;
1053                         ir->code |= 1 << ir->last_bit;
1054                 }
1055                 /* starting new code */
1056         } else {
1057                 ir->active = 1;
1058                 ir->code = 0;
1059                 ir->base_time = tv;
1060                 ir->last_bit = 0;
1061
1062                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
1063                 mod_timer(&ir->timer_end, timeout);
1064         }
1065
1066         return 1;
1067 }
1068
1069 static void nec_task(unsigned long data)
1070 {
1071         struct saa7134_dev *dev = (struct saa7134_dev *) data;
1072         struct card_ir *ir;
1073         struct timeval tv;
1074         int count, pulse, oldpulse, gap;
1075         u32 ircode = 0, not_code = 0;
1076         int ngap = 0;
1077
1078         if (!data) {
1079                 printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
1080                 /* GPIO will be kept disabled */
1081                 return;
1082         }
1083
1084         ir = dev->remote;
1085
1086         /* rising SAA7134_GPIO_GPRESCAN reads the status */
1087         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1088         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1089
1090         oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
1091         pulse = oldpulse;
1092
1093         do_gettimeofday(&tv);
1094         ir->base_time = tv;
1095
1096         /* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
1097            Unfortunately, using IRQ to decode pulse didn't work, since it uses
1098            a pulse train of 38KHz. This means one pulse on each 52 us
1099          */
1100         do {
1101                 /* Wait until the end of pulse/space or 5 ms */
1102                 for (count = 0; count < 500; count++)  {
1103                         udelay(10);
1104                         /* rising SAA7134_GPIO_GPRESCAN reads the status */
1105                         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1106                         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1107                         pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
1108                                 & ir->mask_keydown;
1109                         if (pulse != oldpulse)
1110                                 break;
1111                 }
1112
1113                 do_gettimeofday(&tv);
1114                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
1115                                 tv.tv_usec - ir->base_time.tv_usec;
1116
1117                 if (!pulse) {
1118                         /* Bit 0 has 560 us, while bit 1 has 1120 us.
1119                            Do something only if bit == 1
1120                          */
1121                         if (ngap && (gap > 560 + 280)) {
1122                                 unsigned int shift = ngap - 1;
1123
1124                                 /* Address first, then command */
1125                                 if (shift < 8) {
1126                                         shift += 8;
1127                                         ircode |= 1 << shift;
1128                                 } else if (shift < 16) {
1129                                         not_code |= 1 << shift;
1130                                 } else if (shift < 24) {
1131                                         shift -= 16;
1132                                         ircode |= 1 << shift;
1133                                 } else {
1134                                         shift -= 24;
1135                                         not_code |= 1 << shift;
1136                                 }
1137                         }
1138                         ngap++;
1139                 }
1140
1141
1142                 ir->base_time = tv;
1143
1144                 /* TIMEOUT - Long pulse */
1145                 if (gap >= 5000)
1146                         break;
1147                 oldpulse = pulse;
1148         } while (ngap < 32);
1149
1150         if (ngap == 32) {
1151                 /* FIXME: should check if not_code == ~ircode */
1152                 ir->code = ir_extract_bits(ircode, ir->mask_keycode);
1153
1154                 dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
1155                          ir->code, ircode, not_code);
1156
1157                 ir_keydown(ir->dev, ir->code, 0);
1158         } else {
1159                 dprintk("Repeat last key\n");
1160                 ir_repeat(ir->dev);
1161         }
1162
1163         saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
1164 }
1165
1166 static int saa7134_nec_irq(struct saa7134_dev *dev)
1167 {
1168         struct card_ir *ir = dev->remote;
1169
1170         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
1171         tasklet_schedule(&ir->tlet);
1172
1173         return 1;
1174 }