git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/saa7134/saa7134-input.c

   1 /*
   2  *
   3  * handle saa7134 IR remotes via linux kernel input layer.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  18  *
  19  */
  20
  21 #include <linux/module.h>
  22 #include <linux/init.h>
  23 #include <linux/delay.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/input.h>
  26
  27 #include "saa7134-reg.h"
  28 #include "saa7134.h"
  29
  30 static unsigned int disable_ir;
  31 module_param(disable_ir, int, 0444);
  32 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
  33
  34 static unsigned int ir_debug;
  35 module_param(ir_debug, int, 0644);
  36 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
  37
  38 static int pinnacle_remote;
  39 module_param(pinnacle_remote, int, 0644);    /* Choose Pinnacle PCTV remote */
  40 MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
  41
  42 static int ir_rc5_remote_gap = 885;
  43 module_param(ir_rc5_remote_gap, int, 0644);
  44 static int ir_rc5_key_timeout = 115;
  45 module_param(ir_rc5_key_timeout, int, 0644);
  46
  47 static int repeat_delay = 500;
  48 module_param(repeat_delay, int, 0644);
  49 MODULE_PARM_DESC(repeat_delay, "delay before key repeat started");
  50 static int repeat_period = 33;
  51 module_param(repeat_period, int, 0644);
  52 MODULE_PARM_DESC(repeat_period, "repeat period between "
  53     "keypresses when key is down");
  54
  55 static unsigned int disable_other_ir;
  56 module_param(disable_other_ir, int, 0644);
  57 MODULE_PARM_DESC(disable_other_ir, "disable full codes of "
  58     "alternative remotes from other manufacturers");
  59
  60 #define dprintk(fmt, arg...)    if (ir_debug) \
  61         printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
  62 #define i2cdprintk(fmt, arg...)    if (ir_debug) \
  63         printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg)
  64
  65 /* Helper functions for RC5 and NEC decoding at GPIO16 or GPIO18 */
  66 static int saa7134_rc5_irq(struct saa7134_dev *dev);
  67 static int saa7134_nec_irq(struct saa7134_dev *dev);
  68 static void nec_task(unsigned long data);
  69 static void saa7134_nec_timer(unsigned long data);
  70
  71 /* -------------------- GPIO generic keycode builder -------------------- */
  72
  73 static int build_key(struct saa7134_dev *dev)
  74 {
  75         struct card_ir *ir = dev->remote;
  76         u32 gpio, data;
  77
  78         /* here comes the additional handshake steps for some cards */
  79         switch (dev->board) {
  80         case SAA7134_BOARD_GOTVIEW_7135:
  81                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
  82                 saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
  83                 break;
  84         }
  85         /* rising SAA7134_GPIO_GPRESCAN reads the status */
  86         saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  87         saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  88
  89         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
  90         if (ir->polling) {
  91                 if (ir->last_gpio == gpio)
  92                         return 0;
  93                 ir->last_gpio = gpio;
  94         }
  95
  96         data = ir_extract_bits(gpio, ir->mask_keycode);
  97         dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
  98                 gpio, ir->mask_keycode, data);
  99
 100         if (ir->polling) {
 101                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 102                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 103                         ir_input_keydown(ir->dev, &ir->ir, data, data);
 104                 } else {
 105                         ir_input_nokey(ir->dev, &ir->ir);
 106                 }
 107         }
 108         else {  /* IRQ driven mode - handle key press and release in one go */
 109                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 110                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 111                         ir_input_keydown(ir->dev, &ir->ir, data, data);
 112                         ir_input_nokey(ir->dev, &ir->ir);
 113                 }
 114         }
 115
 116         return 0;
 117 }
 118
 119 /* --------------------- Chip specific I2C key builders ----------------- */
 120
 121 static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key,
 122                                        u32 *ir_raw)
 123 {
 124         unsigned char b;
 125         int gpio;
 126
 127         /* <dev> is needed to access GPIO. Used by the saa_readl macro. */
 128         struct saa7134_dev *dev = ir->c.adapter->algo_data;
 129         if (dev == NULL) {
 130                 dprintk("get_key_msi_tvanywhere_plus: "
 131                         "gir->c.adapter->algo_data is NULL!\n");
 132                 return -EIO;
 133         }
 134
 135         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 136
 137         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 138         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 139
 140         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 141
 142         /* GPIO&0x40 is pulsed low when a button is pressed. Don't do
 143            I2C receive if gpio&0x40 is not low. */
 144
 145         if (gpio & 0x40)
 146                 return 0;       /* No button press */
 147
 148         /* GPIO says there is a button press. Get it. */
 149
 150         if (1 != i2c_master_recv(&ir->c, &b, 1)) {
 151                 i2cdprintk("read error\n");
 152                 return -EIO;
 153         }
 154
 155         /* No button press */
 156
 157         if (b == 0xff)
 158                 return 0;
 159
 160         /* Button pressed */
 161
 162         dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
 163         *ir_key = b;
 164         *ir_raw = b;
 165         return 1;
 166 }
 167
 168 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 169 {
 170         unsigned char b;
 171
 172         /* poll IR chip */
 173         if (1 != i2c_master_recv(&ir->c,&b,1)) {
 174                 i2cdprintk("read error\n");
 175                 return -EIO;
 176         }
 177
 178         /* no button press */
 179         if (b==0)
 180                 return 0;
 181
 182         /* repeating */
 183         if (b & 0x80)
 184                 return 1;
 185
 186         *ir_key = b;
 187         *ir_raw = b;
 188         return 1;
 189 }
 190
 191 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 192 {
 193         unsigned char buf[5], cod4, code3, code4;
 194
 195         /* poll IR chip */
 196         if (5 != i2c_master_recv(&ir->c,buf,5))
 197                 return -EIO;
 198
 199         cod4    = buf[4];
 200         code4   = (cod4 >> 2);
 201         code3   = buf[3];
 202         if (code3 == 0)
 203                 /* no key pressed */
 204                 return 0;
 205
 206         /* return key */
 207         *ir_key = code4;
 208         *ir_raw = code4;
 209         return 1;
 210 }
 211
 212
 213 static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 214 {
 215         unsigned char data[12];
 216         u32 gpio;
 217
 218         struct saa7134_dev *dev = ir->c.adapter->algo_data;
 219
 220         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 221         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 222         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 223
 224         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 225
 226         if (0x400000 & ~gpio)
 227                 return 0; /* No button press */
 228
 229         ir->c.addr = 0x5a >> 1;
 230
 231         if (12 != i2c_master_recv(&ir->c, data, 12)) {
 232                 i2cdprintk("read error\n");
 233                 return -EIO;
 234         }
 235         /* IR of this card normally decode signals NEC-standard from
 236          * - Sven IHOO MT 5.1R remote. xxyye718
 237          * - Sven DVD HD-10xx remote. xxyyf708
 238          * - BBK ...
 239          * - mayby others
 240          * So, skip not our, if disable full codes mode.
 241          */
 242         if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
 243                 return 0;
 244
 245         *ir_key = data[9];
 246         *ir_raw = data[9];
 247
 248         return 1;
 249 }
 250
 251 /* Common (grey or coloured) pinnacle PCTV remote handling
 252  *
 253  */
 254 static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
 255                             int parity_offset, int marker, int code_modulo)
 256 {
 257         unsigned char b[4];
 258         unsigned int start = 0,parity = 0,code = 0;
 259
 260         /* poll IR chip */
 261         if (4 != i2c_master_recv(&ir->c, b, 4)) {
 262                 i2cdprintk("read error\n");
 263                 return -EIO;
 264         }
 265
 266         for (start = 0; start < ARRAY_SIZE(b); start++) {
 267                 if (b[start] == marker) {
 268                         code=b[(start+parity_offset + 1) % 4];
 269                         parity=b[(start+parity_offset) % 4];
 270                 }
 271         }
 272
 273         /* Empty Request */
 274         if (parity == 0)
 275                 return 0;
 276
 277         /* Repeating... */
 278         if (ir->old == parity)
 279                 return 0;
 280
 281         ir->old = parity;
 282
 283         /* drop special codes when a key is held down a long time for the grey controller
 284            In this case, the second bit of the code is asserted */
 285         if (marker == 0xfe && (code & 0x40))
 286                 return 0;
 287
 288         code %= code_modulo;
 289
 290         *ir_raw = code;
 291         *ir_key = code;
 292
 293         i2cdprintk("Pinnacle PCTV key %02x\n", code);
 294
 295         return 1;
 296 }
 297
 298 /* The grey pinnacle PCTV remote
 299  *
 300  *  There are one issue with this remote:
 301  *   - I2c packet does not change when the same key is pressed quickly. The workaround
 302  *     is to hold down each key for about half a second, so that another code is generated
 303  *     in the i2c packet, and the function can distinguish key presses.
 304  *
 305  * Sylvain Pasche <sylvain.pasche@gmail.com>
 306  */
 307 static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 308 {
 309
 310         return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
 311 }
 312
 313
 314 /* The new pinnacle PCTV remote (with the colored buttons)
 315  *
 316  * Ricardo Cerqueira <v4l@cerqueira.org>
 317  */
 318 static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 319 {
 320         /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
 321          *
 322          * this is the only value that results in 42 unique
 323          * codes < 128
 324          */
 325
 326         return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
 327 }
 328
 329 void saa7134_input_irq(struct saa7134_dev *dev)
 330 {
 331         struct card_ir *ir = dev->remote;
 332
 333         if (ir->nec_gpio) {
 334                 saa7134_nec_irq(dev);
 335         } else if (!ir->polling && !ir->rc5_gpio) {
 336                 build_key(dev);
 337         } else if (ir->rc5_gpio) {
 338                 saa7134_rc5_irq(dev);
 339         }
 340 }
 341
 342 static void saa7134_input_timer(unsigned long data)
 343 {
 344         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 345         struct card_ir *ir = dev->remote;
 346
 347         build_key(dev);
 348         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
 349 }
 350
 351 void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
 352 {
 353         if (ir->polling) {
 354                 setup_timer(&ir->timer, saa7134_input_timer,
 355                             (unsigned long)dev);
 356                 ir->timer.expires  = jiffies + HZ;
 357                 add_timer(&ir->timer);
 358         } else if (ir->rc5_gpio) {
 359                 /* set timer_end for code completion */
 360                 init_timer(&ir->timer_end);
 361                 ir->timer_end.function = ir_rc5_timer_end;
 362                 ir->timer_end.data = (unsigned long)ir;
 363                 init_timer(&ir->timer_keyup);
 364                 ir->timer_keyup.function = ir_rc5_timer_keyup;
 365                 ir->timer_keyup.data = (unsigned long)ir;
 366                 ir->shift_by = 2;
 367                 ir->start = 0x2;
 368                 ir->addr = 0x17;
 369                 ir->rc5_key_timeout = ir_rc5_key_timeout;
 370                 ir->rc5_remote_gap = ir_rc5_remote_gap;
 371         } else if (ir->nec_gpio) {
 372                 setup_timer(&ir->timer_keyup, saa7134_nec_timer,
 373                             (unsigned long)dev);
 374                 tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
 375         }
 376 }
 377
 378 void saa7134_ir_stop(struct saa7134_dev *dev)
 379 {
 380         if (dev->remote->polling)
 381                 del_timer_sync(&dev->remote->timer);
 382 }
 383
 384 int saa7134_input_init1(struct saa7134_dev *dev)
 385 {
 386         struct card_ir *ir;
 387         struct input_dev *input_dev;
 388         IR_KEYTAB_TYPE *ir_codes = NULL;
 389         u32 mask_keycode = 0;
 390         u32 mask_keydown = 0;
 391         u32 mask_keyup   = 0;
 392         int polling      = 0;
 393         int rc5_gpio     = 0;
 394         int nec_gpio     = 0;
 395         int ir_type      = IR_TYPE_OTHER;
 396         int err;
 397
 398         if (dev->has_remote != SAA7134_REMOTE_GPIO)
 399                 return -ENODEV;
 400         if (disable_ir)
 401                 return -ENODEV;
 402
 403         /* detect & configure */
 404         switch (dev->board) {
 405         case SAA7134_BOARD_FLYVIDEO2000:
 406         case SAA7134_BOARD_FLYVIDEO3000:
 407         case SAA7134_BOARD_FLYTVPLATINUM_FM:
 408         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
 409                 ir_codes     = ir_codes_flyvideo;
 410                 mask_keycode = 0xEC00000;
 411                 mask_keydown = 0x0040000;
 412                 break;
 413         case SAA7134_BOARD_CINERGY400:
 414         case SAA7134_BOARD_CINERGY600:
 415         case SAA7134_BOARD_CINERGY600_MK3:
 416                 ir_codes     = ir_codes_cinergy;
 417                 mask_keycode = 0x00003f;
 418                 mask_keyup   = 0x040000;
 419                 break;
 420         case SAA7134_BOARD_ECS_TVP3XP:
 421         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
 422                 ir_codes     = ir_codes_eztv;
 423                 mask_keycode = 0x00017c;
 424                 mask_keyup   = 0x000002;
 425                 polling      = 50; // ms
 426                 break;
 427         case SAA7134_BOARD_KWORLD_XPERT:
 428         case SAA7134_BOARD_AVACSSMARTTV:
 429                 ir_codes     = ir_codes_pixelview;
 430                 mask_keycode = 0x00001F;
 431                 mask_keyup   = 0x000020;
 432                 polling      = 50; // ms
 433                 break;
 434         case SAA7134_BOARD_MD2819:
 435         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
 436         case SAA7134_BOARD_AVERMEDIA_305:
 437         case SAA7134_BOARD_AVERMEDIA_307:
 438         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
 439         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
 440         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
 441         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
 442         case SAA7134_BOARD_AVERMEDIA_M102:
 443                 ir_codes     = ir_codes_avermedia;
 444                 mask_keycode = 0x0007C8;
 445                 mask_keydown = 0x000010;
 446                 polling      = 50; // ms
 447                 /* Set GPIO pin2 to high to enable the IR controller */
 448                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
 449                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
 450                 break;
 451         case SAA7134_BOARD_AVERMEDIA_M135A:
 452                 ir_codes     = ir_codes_avermedia_m135a;
 453                 mask_keydown = 0x0040000;
 454                 mask_keycode = 0x00013f;
 455                 nec_gpio     = 1;
 456                 break;
 457         case SAA7134_BOARD_AVERMEDIA_777:
 458         case SAA7134_BOARD_AVERMEDIA_A16AR:
 459                 ir_codes     = ir_codes_avermedia;
 460                 mask_keycode = 0x02F200;
 461                 mask_keydown = 0x000400;
 462                 polling      = 50; // ms
 463                 /* Without this we won't receive key up events */
 464                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 465                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 466                 break;
 467         case SAA7134_BOARD_AVERMEDIA_A16D:
 468                 ir_codes     = ir_codes_avermedia_a16d;
 469                 mask_keycode = 0x02F200;
 470                 mask_keydown = 0x000400;
 471                 polling      = 50; /* ms */
 472                 /* Without this we won't receive key up events */
 473                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 474                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 475                 break;
 476         case SAA7134_BOARD_KWORLD_TERMINATOR:
 477                 ir_codes     = ir_codes_pixelview;
 478                 mask_keycode = 0x00001f;
 479                 mask_keyup   = 0x000060;
 480                 polling      = 50; // ms
 481                 break;
 482         case SAA7134_BOARD_MANLI_MTV001:
 483         case SAA7134_BOARD_MANLI_MTV002:
 484                 ir_codes     = ir_codes_manli;
 485                 mask_keycode = 0x001f00;
 486                 mask_keyup   = 0x004000;
 487                 polling      = 50; /* ms */
 488                 break;
 489         case SAA7134_BOARD_BEHOLD_409FM:
 490         case SAA7134_BOARD_BEHOLD_401:
 491         case SAA7134_BOARD_BEHOLD_403:
 492         case SAA7134_BOARD_BEHOLD_403FM:
 493         case SAA7134_BOARD_BEHOLD_405:
 494         case SAA7134_BOARD_BEHOLD_405FM:
 495         case SAA7134_BOARD_BEHOLD_407:
 496         case SAA7134_BOARD_BEHOLD_407FM:
 497         case SAA7134_BOARD_BEHOLD_409:
 498         case SAA7134_BOARD_BEHOLD_505FM:
 499         case SAA7134_BOARD_BEHOLD_507_9FM:
 500                 ir_codes     = ir_codes_manli;
 501                 mask_keycode = 0x003f00;
 502                 mask_keyup   = 0x004000;
 503                 polling      = 50; /* ms */
 504                 break;
 505         case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
 506                 ir_codes     = ir_codes_behold_columbus;
 507                 mask_keycode = 0x003f00;
 508                 mask_keyup   = 0x004000;
 509                 polling      = 50; // ms
 510                 break;
 511         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
 512                 ir_codes     = ir_codes_pctv_sedna;
 513                 mask_keycode = 0x001f00;
 514                 mask_keyup   = 0x004000;
 515                 polling      = 50; // ms
 516                 break;
 517         case SAA7134_BOARD_GOTVIEW_7135:
 518                 ir_codes     = ir_codes_gotview7135;
 519                 mask_keycode = 0x0003CC;
 520                 mask_keydown = 0x000010;
 521                 polling      = 5; /* ms */
 522                 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
 523                 break;
 524         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
 525         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
 526         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
 527                 ir_codes     = ir_codes_videomate_tv_pvr;
 528                 mask_keycode = 0x00003F;
 529                 mask_keyup   = 0x400000;
 530                 polling      = 50; // ms
 531                 break;
 532         case SAA7134_BOARD_PROTEUS_2309:
 533                 ir_codes     = ir_codes_proteus_2309;
 534                 mask_keycode = 0x00007F;
 535                 mask_keyup   = 0x000080;
 536                 polling      = 50; // ms
 537                 break;
 538         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
 539         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
 540                 ir_codes     = ir_codes_videomate_tv_pvr;
 541                 mask_keycode = 0x003F00;
 542                 mask_keyup   = 0x040000;
 543                 break;
 544         case SAA7134_BOARD_FLYDVBS_LR300:
 545         case SAA7134_BOARD_FLYDVBT_LR301:
 546         case SAA7134_BOARD_FLYDVBTDUO:
 547                 ir_codes     = ir_codes_flydvb;
 548                 mask_keycode = 0x0001F00;
 549                 mask_keydown = 0x0040000;
 550                 break;
 551         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
 552         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
 553        case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
 554                 ir_codes     = ir_codes_asus_pc39;
 555                 mask_keydown = 0x0040000;
 556                 rc5_gpio = 1;
 557                 break;
 558         case SAA7134_BOARD_ENCORE_ENLTV:
 559         case SAA7134_BOARD_ENCORE_ENLTV_FM:
 560                 ir_codes     = ir_codes_encore_enltv;
 561                 mask_keycode = 0x00007f;
 562                 mask_keyup   = 0x040000;
 563                 polling      = 50; // ms
 564                 break;
 565         case SAA7134_BOARD_ENCORE_ENLTV_FM53:
 566                 ir_codes     = ir_codes_encore_enltv_fm53;
 567                 mask_keydown = 0x0040000;
 568                 mask_keycode = 0x00007f;
 569                 nec_gpio = 1;
 570                 break;
 571         case SAA7134_BOARD_10MOONSTVMASTER3:
 572                 ir_codes     = ir_codes_encore_enltv;
 573                 mask_keycode = 0x5f80000;
 574                 mask_keyup   = 0x8000000;
 575                 polling      = 50; //ms
 576                 break;
 577         case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
 578                 ir_codes     = ir_codes_genius_tvgo_a11mce;
 579                 mask_keycode = 0xff;
 580                 mask_keydown = 0xf00000;
 581                 polling = 50; /* ms */
 582                 break;
 583         case SAA7134_BOARD_REAL_ANGEL_220:
 584                 ir_codes     = ir_codes_real_audio_220_32_keys;
 585                 mask_keycode = 0x3f00;
 586                 mask_keyup   = 0x4000;
 587                 polling = 50; /* ms */
 588                 break;
 589         }
 590         if (NULL == ir_codes) {
 591                 printk("%s: Oops: IR config error [card=%d]\n",
 592                        dev->name, dev->board);
 593                 return -ENODEV;
 594         }
 595
 596         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 597         input_dev = input_allocate_device();
 598         if (!ir || !input_dev) {
 599                 err = -ENOMEM;
 600                 goto err_out_free;
 601         }
 602
 603         ir->dev = input_dev;
 604
 605         /* init hardware-specific stuff */
 606         ir->mask_keycode = mask_keycode;
 607         ir->mask_keydown = mask_keydown;
 608         ir->mask_keyup   = mask_keyup;
 609         ir->polling      = polling;
 610         ir->rc5_gpio     = rc5_gpio;
 611         ir->nec_gpio     = nec_gpio;
 612
 613         /* init input device */
 614         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
 615                  saa7134_boards[dev->board].name);
 616         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
 617                  pci_name(dev->pci));
 618
 619         ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
 620         input_dev->name = ir->name;
 621         input_dev->phys = ir->phys;
 622         input_dev->id.bustype = BUS_PCI;
 623         input_dev->id.version = 1;
 624         if (dev->pci->subsystem_vendor) {
 625                 input_dev->id.vendor  = dev->pci->subsystem_vendor;
 626                 input_dev->id.product = dev->pci->subsystem_device;
 627         } else {
 628                 input_dev->id.vendor  = dev->pci->vendor;
 629                 input_dev->id.product = dev->pci->device;
 630         }
 631         input_dev->dev.parent = &dev->pci->dev;
 632
 633         dev->remote = ir;
 634         saa7134_ir_start(dev, ir);
 635
 636         err = input_register_device(ir->dev);
 637         if (err)
 638                 goto err_out_stop;
 639
 640         /* the remote isn't as bouncy as a keyboard */
 641         ir->dev->rep[REP_DELAY] = repeat_delay;
 642         ir->dev->rep[REP_PERIOD] = repeat_period;
 643
 644         return 0;
 645
 646  err_out_stop:
 647         saa7134_ir_stop(dev);
 648         dev->remote = NULL;
 649  err_out_free:
 650         input_free_device(input_dev);
 651         kfree(ir);
 652         return err;
 653 }
 654
 655 void saa7134_input_fini(struct saa7134_dev *dev)
 656 {
 657         if (NULL == dev->remote)
 658                 return;
 659
 660         saa7134_ir_stop(dev);
 661         input_unregister_device(dev->remote->dev);
 662         kfree(dev->remote);
 663         dev->remote = NULL;
 664 }
 665
 666 void saa7134_set_i2c_ir(struct saa7134_dev *dev, struct IR_i2c *ir)
 667 {
 668         if (disable_ir) {
 669                 dprintk("Found supported i2c remote, but IR has been disabled\n");
 670                 ir->get_key=NULL;
 671                 return;
 672         }
 673
 674         switch (dev->board) {
 675         case SAA7134_BOARD_PINNACLE_PCTV_110i:
 676         case SAA7134_BOARD_PINNACLE_PCTV_310i:
 677                 snprintf(ir->c.name, sizeof(ir->c.name), "Pinnacle PCTV");
 678                 if (pinnacle_remote == 0) {
 679                         ir->get_key   = get_key_pinnacle_color;
 680                         ir->ir_codes = ir_codes_pinnacle_color;
 681                 } else {
 682                         ir->get_key   = get_key_pinnacle_grey;
 683                         ir->ir_codes = ir_codes_pinnacle_grey;
 684                 }
 685                 break;
 686         case SAA7134_BOARD_UPMOST_PURPLE_TV:
 687                 snprintf(ir->c.name, sizeof(ir->c.name), "Purple TV");
 688                 ir->get_key   = get_key_purpletv;
 689                 ir->ir_codes  = ir_codes_purpletv;
 690                 break;
 691         case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
 692                 snprintf(ir->c.name, sizeof(ir->c.name), "MSI TV@nywhere Plus");
 693                 ir->get_key  = get_key_msi_tvanywhere_plus;
 694                 ir->ir_codes = ir_codes_msi_tvanywhere_plus;
 695                 break;
 696         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
 697                 snprintf(ir->c.name, sizeof(ir->c.name), "HVR 1110");
 698                 ir->get_key   = get_key_hvr1110;
 699                 ir->ir_codes  = ir_codes_hauppauge_new;
 700                 break;
 701         case SAA7134_BOARD_BEHOLD_607_9FM:
 702         case SAA7134_BOARD_BEHOLD_M6:
 703         case SAA7134_BOARD_BEHOLD_M63:
 704         case SAA7134_BOARD_BEHOLD_M6_EXTRA:
 705         case SAA7134_BOARD_BEHOLD_H6:
 706                 snprintf(ir->c.name, sizeof(ir->c.name), "BeholdTV");
 707                 ir->get_key   = get_key_beholdm6xx;
 708                 ir->ir_codes  = ir_codes_behold;
 709                 break;
 710         default:
 711                 dprintk("Shouldn't get here: Unknown board %x for I2C IR?\n",dev->board);
 712                 break;
 713         }
 714
 715 }
 716
 717 static int saa7134_rc5_irq(struct saa7134_dev *dev)
 718 {
 719         struct card_ir *ir = dev->remote;
 720         struct timeval tv;
 721         u32 gap;
 722         unsigned long current_jiffies, timeout;
 723
 724         /* get time of bit */
 725         current_jiffies = jiffies;
 726         do_gettimeofday(&tv);
 727
 728         /* avoid overflow with gap >1s */
 729         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
 730                 gap = 200000;
 731         } else {
 732                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
 733                     tv.tv_usec - ir->base_time.tv_usec;
 734         }
 735
 736         /* active code => add bit */
 737         if (ir->active) {
 738                 /* only if in the code (otherwise spurious IRQ or timer
 739                    late) */
 740                 if (ir->last_bit < 28) {
 741                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
 742                             ir_rc5_remote_gap;
 743                         ir->code |= 1 << ir->last_bit;
 744                 }
 745                 /* starting new code */
 746         } else {
 747                 ir->active = 1;
 748                 ir->code = 0;
 749                 ir->base_time = tv;
 750                 ir->last_bit = 0;
 751
 752                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
 753                 mod_timer(&ir->timer_end, timeout);
 754         }
 755
 756         return 1;
 757 }
 758
 759
 760 /* On NEC protocol, One has 2.25 ms, and zero has 1.125 ms
 761    The first pulse (start) has 9 + 4.5 ms
 762  */
 763
 764 static void saa7134_nec_timer(unsigned long data)
 765 {
 766         struct saa7134_dev *dev = (struct saa7134_dev *) data;
 767         struct card_ir *ir = dev->remote;
 768
 769         dprintk("Cancel key repeat\n");
 770
 771         ir_input_nokey(ir->dev, &ir->ir);
 772 }
 773
 774 static void nec_task(unsigned long data)
 775 {
 776         struct saa7134_dev *dev = (struct saa7134_dev *) data;
 777         struct card_ir *ir;
 778         struct timeval tv;
 779         int count, pulse, oldpulse, gap;
 780         u32 ircode = 0, not_code = 0;
 781         int ngap = 0;
 782
 783         if (!data) {
 784                 printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
 785                 /* GPIO will be kept disabled */
 786                 return;
 787         }
 788
 789         ir = dev->remote;
 790
 791         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 792         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 793         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 794
 795         oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
 796         pulse = oldpulse;
 797
 798         do_gettimeofday(&tv);
 799         ir->base_time = tv;
 800
 801         /* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
 802            Unfortunately, using IRQ to decode pulse didn't work, since it uses
 803            a pulse train of 38KHz. This means one pulse on each 52 us
 804          */
 805         do {
 806                 /* Wait until the end of pulse/space or 5 ms */
 807                 for (count = 0; count < 500; count++)  {
 808                         udelay(10);
 809                         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 810                         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 811                         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 812                         pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
 813                                 & ir->mask_keydown;
 814                         if (pulse != oldpulse)
 815                                 break;
 816                 }
 817
 818                 do_gettimeofday(&tv);
 819                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
 820                                 tv.tv_usec - ir->base_time.tv_usec;
 821
 822                 if (!pulse) {
 823                         /* Bit 0 has 560 us, while bit 1 has 1120 us.
 824                            Do something only if bit == 1
 825                          */
 826                         if (ngap && (gap > 560 + 280)) {
 827                                 unsigned int shift = ngap - 1;
 828
 829                                 /* Address first, then command */
 830                                 if (shift < 8) {
 831                                         shift += 8;
 832                                         ircode |= 1 << shift;
 833                                 } else if (shift < 16) {
 834                                         not_code |= 1 << shift;
 835                                 } else if (shift < 24) {
 836                                         shift -= 16;
 837                                         ircode |= 1 << shift;
 838                                 } else {
 839                                         shift -= 24;
 840                                         not_code |= 1 << shift;
 841                                 }
 842                         }
 843                         ngap++;
 844                 }
 845
 846
 847                 ir->base_time = tv;
 848
 849                 /* TIMEOUT - Long pulse */
 850                 if (gap >= 5000)
 851                         break;
 852                 oldpulse = pulse;
 853         } while (ngap < 32);
 854
 855         if (ngap == 32) {
 856                 /* FIXME: should check if not_code == ~ircode */
 857                 ir->code = ir_extract_bits(ircode, ir->mask_keycode);
 858
 859                 dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
 860                          ir->code, ircode, not_code);
 861
 862                 ir_input_keydown(ir->dev, &ir->ir, ir->code, ir->code);
 863         } else
 864                 dprintk("Repeat last key\n");
 865
 866         /* Keep repeating the last key */
 867         mod_timer(&ir->timer_keyup, jiffies + msecs_to_jiffies(150));
 868
 869         saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 870 }
 871
 872 static int saa7134_nec_irq(struct saa7134_dev *dev)
 873 {
 874         struct card_ir *ir = dev->remote;
 875
 876         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 877         tasklet_schedule(&ir->tlet);
 878
 879         return 1;
 880 }