SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/media/video/saa7134/saa7134-input.c

   1 /*
   2  *
   3  * handle saa7134 IR remotes via linux kernel input layer.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  18  *
  19  */
  20
  21 #include <linux/module.h>
  22 #include <linux/init.h>
  23 #include <linux/delay.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/input.h>
  26
  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->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         switch (dev->board) {
 101         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
 102                 if (data == ir->mask_keycode)
 103                         ir_input_nokey(ir->dev, &ir->ir);
 104                 else
 105                         ir_input_keydown(ir->dev, &ir->ir, data);
 106                 return 0;
 107         }
 108
 109         if (ir->polling) {
 110                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 111                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 112                         ir_input_keydown(ir->dev, &ir->ir, data);
 113                 } else {
 114                         ir_input_nokey(ir->dev, &ir->ir);
 115                 }
 116         }
 117         else {  /* IRQ driven mode - handle key press and release in one go */
 118                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 119                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 120                         ir_input_keydown(ir->dev, &ir->ir, data);
 121                         ir_input_nokey(ir->dev, &ir->ir);
 122                 }
 123         }
 124
 125         return 0;
 126 }
 127
 128 /* --------------------- Chip specific I2C key builders ----------------- */
 129
 130 static int get_key_flydvb_trio(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 131 {
 132         int gpio;
 133         int attempt = 0;
 134         unsigned char b;
 135
 136         /* We need this to access GPI Used by the saa_readl macro. */
 137         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 138
 139         if (dev == NULL) {
 140                 dprintk("get_key_flydvb_trio: "
 141                          "gir->c->adapter->algo_data is NULL!\n");
 142                 return -EIO;
 143         }
 144
 145         /* rising SAA7134_GPIGPRESCAN reads the status */
 146         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 147         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 148
 149         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 150
 151         if (0x40000 & ~gpio)
 152                 return 0; /* No button press */
 153
 154         /* No button press - only before first key pressed */
 155         if (b == 0xFF)
 156                 return 0;
 157
 158         /* poll IR chip */
 159         /* weak up the IR chip */
 160         b = 0;
 161
 162         while (1 != i2c_master_send(ir->c, &b, 1)) {
 163                 if ((attempt++) < 10) {
 164                         /*
 165                          * wait a bit for next attempt -
 166                          * I don't know how make it better
 167                          */
 168                         msleep(10);
 169                         continue;
 170                 }
 171                 i2cdprintk("send wake up byte to pic16C505 (IR chip)"
 172                            "failed %dx\n", attempt);
 173                 return -EIO;
 174         }
 175         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 176                 i2cdprintk("read error\n");
 177                 return -EIO;
 178         }
 179
 180         *ir_key = b;
 181         *ir_raw = b;
 182         return 1;
 183 }
 184
 185 static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key,
 186                                        u32 *ir_raw)
 187 {
 188         unsigned char b;
 189         int gpio;
 190
 191         /* <dev> is needed to access GPIO. Used by the saa_readl macro. */
 192         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 193         if (dev == NULL) {
 194                 dprintk("get_key_msi_tvanywhere_plus: "
 195                         "gir->c->adapter->algo_data is NULL!\n");
 196                 return -EIO;
 197         }
 198
 199         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 200
 201         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 202         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 203
 204         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 205
 206         /* GPIO&0x40 is pulsed low when a button is pressed. Don't do
 207            I2C receive if gpio&0x40 is not low. */
 208
 209         if (gpio & 0x40)
 210                 return 0;       /* No button press */
 211
 212         /* GPIO says there is a button press. Get it. */
 213
 214         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 215                 i2cdprintk("read error\n");
 216                 return -EIO;
 217         }
 218
 219         /* No button press */
 220
 221         if (b == 0xff)
 222                 return 0;
 223
 224         /* Button pressed */
 225
 226         dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
 227         *ir_key = b;
 228         *ir_raw = b;
 229         return 1;
 230 }
 231
 232 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 233 {
 234         unsigned char b;
 235
 236         /* poll IR chip */
 237         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 238                 i2cdprintk("read error\n");
 239                 return -EIO;
 240         }
 241
 242         /* no button press */
 243         if (b==0)
 244                 return 0;
 245
 246         /* repeating */
 247         if (b & 0x80)
 248                 return 1;
 249
 250         *ir_key = b;
 251         *ir_raw = b;
 252         return 1;
 253 }
 254
 255 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 256 {
 257         unsigned char buf[5], cod4, code3, code4;
 258
 259         /* poll IR chip */
 260         if (5 != i2c_master_recv(ir->c, buf, 5))
 261                 return -EIO;
 262
 263         cod4    = buf[4];
 264         code4   = (cod4 >> 2);
 265         code3   = buf[3];
 266         if (code3 == 0)
 267                 /* no key pressed */
 268                 return 0;
 269
 270         /* return key */
 271         *ir_key = code4;
 272         *ir_raw = code4;
 273         return 1;
 274 }
 275
 276
 277 static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 278 {
 279         unsigned char data[12];
 280         u32 gpio;
 281
 282         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 283
 284         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 285         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 286         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 287
 288         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 289
 290         if (0x400000 & ~gpio)
 291                 return 0; /* No button press */
 292
 293         ir->c->addr = 0x5a >> 1;
 294
 295         if (12 != i2c_master_recv(ir->c, data, 12)) {
 296                 i2cdprintk("read error\n");
 297                 return -EIO;
 298         }
 299         /* IR of this card normally decode signals NEC-standard from
 300          * - Sven IHOO MT 5.1R remote. xxyye718
 301          * - Sven DVD HD-10xx remote. xxyyf708
 302          * - BBK ...
 303          * - mayby others
 304          * So, skip not our, if disable full codes mode.
 305          */
 306         if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
 307                 return 0;
 308
 309         /* Wrong data decode fix */
 310         if (data[9] != (unsigned char)(~data[8]))
 311                 return 0;
 312
 313         *ir_key = data[9];
 314         *ir_raw = data[9];
 315
 316         return 1;
 317 }
 318
 319 /* Common (grey or coloured) pinnacle PCTV remote handling
 320  *
 321  */
 322 static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
 323                             int parity_offset, int marker, int code_modulo)
 324 {
 325         unsigned char b[4];
 326         unsigned int start = 0,parity = 0,code = 0;
 327
 328         /* poll IR chip */
 329         if (4 != i2c_master_recv(ir->c, b, 4)) {
 330                 i2cdprintk("read error\n");
 331                 return -EIO;
 332         }
 333
 334         for (start = 0; start < ARRAY_SIZE(b); start++) {
 335                 if (b[start] == marker) {
 336                         code=b[(start+parity_offset + 1) % 4];
 337                         parity=b[(start+parity_offset) % 4];
 338                 }
 339         }
 340
 341         /* Empty Request */
 342         if (parity == 0)
 343                 return 0;
 344
 345         /* Repeating... */
 346         if (ir->old == parity)
 347                 return 0;
 348
 349         ir->old = parity;
 350
 351         /* drop special codes when a key is held down a long time for the grey controller
 352            In this case, the second bit of the code is asserted */
 353         if (marker == 0xfe && (code & 0x40))
 354                 return 0;
 355
 356         code %= code_modulo;
 357
 358         *ir_raw = code;
 359         *ir_key = code;
 360
 361         i2cdprintk("Pinnacle PCTV key %02x\n", code);
 362
 363         return 1;
 364 }
 365
 366 /* The grey pinnacle PCTV remote
 367  *
 368  *  There are one issue with this remote:
 369  *   - I2c packet does not change when the same key is pressed quickly. The workaround
 370  *     is to hold down each key for about half a second, so that another code is generated
 371  *     in the i2c packet, and the function can distinguish key presses.
 372  *
 373  * Sylvain Pasche <sylvain.pasche@gmail.com>
 374  */
 375 static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 376 {
 377
 378         return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
 379 }
 380
 381
 382 /* The new pinnacle PCTV remote (with the colored buttons)
 383  *
 384  * Ricardo Cerqueira <v4l@cerqueira.org>
 385  */
 386 static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 387 {
 388         /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
 389          *
 390          * this is the only value that results in 42 unique
 391          * codes < 128
 392          */
 393
 394         return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
 395 }
 396
 397 void saa7134_input_irq(struct saa7134_dev *dev)
 398 {
 399         struct card_ir *ir = dev->remote;
 400
 401         if (ir->nec_gpio) {
 402                 saa7134_nec_irq(dev);
 403         } else if (!ir->polling && !ir->rc5_gpio) {
 404                 build_key(dev);
 405         } else if (ir->rc5_gpio) {
 406                 saa7134_rc5_irq(dev);
 407         }
 408 }
 409
 410 static void saa7134_input_timer(unsigned long data)
 411 {
 412         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 413         struct card_ir *ir = dev->remote;
 414
 415         build_key(dev);
 416         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
 417 }
 418
 419 void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
 420 {
 421         if (ir->polling) {
 422                 setup_timer(&ir->timer, saa7134_input_timer,
 423                             (unsigned long)dev);
 424                 ir->timer.expires  = jiffies + HZ;
 425                 add_timer(&ir->timer);
 426         } else if (ir->rc5_gpio) {
 427                 /* set timer_end for code completion */
 428                 init_timer(&ir->timer_end);
 429                 ir->timer_end.function = ir_rc5_timer_end;
 430                 ir->timer_end.data = (unsigned long)ir;
 431                 init_timer(&ir->timer_keyup);
 432                 ir->timer_keyup.function = ir_rc5_timer_keyup;
 433                 ir->timer_keyup.data = (unsigned long)ir;
 434                 ir->shift_by = 2;
 435                 ir->start = 0x2;
 436                 ir->addr = 0x17;
 437                 ir->rc5_key_timeout = ir_rc5_key_timeout;
 438                 ir->rc5_remote_gap = ir_rc5_remote_gap;
 439         } else if (ir->nec_gpio) {
 440                 setup_timer(&ir->timer_keyup, saa7134_nec_timer,
 441                             (unsigned long)dev);
 442                 tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
 443         }
 444 }
 445
 446 void saa7134_ir_stop(struct saa7134_dev *dev)
 447 {
 448         if (dev->remote->polling)
 449                 del_timer_sync(&dev->remote->timer);
 450 }
 451
 452 int saa7134_input_init1(struct saa7134_dev *dev)
 453 {
 454         struct card_ir *ir;
 455         struct input_dev *input_dev;
 456         struct ir_scancode_table *ir_codes = NULL;
 457         u32 mask_keycode = 0;
 458         u32 mask_keydown = 0;
 459         u32 mask_keyup   = 0;
 460         int polling      = 0;
 461         int rc5_gpio     = 0;
 462         int nec_gpio     = 0;
 463         int ir_type      = IR_TYPE_OTHER;
 464         int err;
 465
 466         if (dev->has_remote != SAA7134_REMOTE_GPIO)
 467                 return -ENODEV;
 468         if (disable_ir)
 469                 return -ENODEV;
 470
 471         /* detect & configure */
 472         switch (dev->board) {
 473         case SAA7134_BOARD_FLYVIDEO2000:
 474         case SAA7134_BOARD_FLYVIDEO3000:
 475         case SAA7134_BOARD_FLYTVPLATINUM_FM:
 476         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
 477         case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
 478                 ir_codes     = &ir_codes_flyvideo_table;
 479                 mask_keycode = 0xEC00000;
 480                 mask_keydown = 0x0040000;
 481                 break;
 482         case SAA7134_BOARD_CINERGY400:
 483         case SAA7134_BOARD_CINERGY600:
 484         case SAA7134_BOARD_CINERGY600_MK3:
 485                 ir_codes     = &ir_codes_cinergy_table;
 486                 mask_keycode = 0x00003f;
 487                 mask_keyup   = 0x040000;
 488                 break;
 489         case SAA7134_BOARD_ECS_TVP3XP:
 490         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
 491                 ir_codes     = &ir_codes_eztv_table;
 492                 mask_keycode = 0x00017c;
 493                 mask_keyup   = 0x000002;
 494                 polling      = 50; // ms
 495                 break;
 496         case SAA7134_BOARD_KWORLD_XPERT:
 497         case SAA7134_BOARD_AVACSSMARTTV:
 498                 ir_codes     = &ir_codes_pixelview_table;
 499                 mask_keycode = 0x00001F;
 500                 mask_keyup   = 0x000020;
 501                 polling      = 50; // ms
 502                 break;
 503         case SAA7134_BOARD_MD2819:
 504         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
 505         case SAA7134_BOARD_AVERMEDIA_305:
 506         case SAA7134_BOARD_AVERMEDIA_307:
 507         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
 508         case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
 509         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
 510         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
 511         case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
 512         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
 513         case SAA7134_BOARD_AVERMEDIA_M102:
 514         case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
 515                 ir_codes     = &ir_codes_avermedia_table;
 516                 mask_keycode = 0x0007C8;
 517                 mask_keydown = 0x000010;
 518                 polling      = 50; // ms
 519                 /* Set GPIO pin2 to high to enable the IR controller */
 520                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
 521                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
 522                 break;
 523         case SAA7134_BOARD_AVERMEDIA_M135A:
 524                 ir_codes     = &ir_codes_avermedia_m135a_table;
 525                 mask_keydown = 0x0040000;
 526                 mask_keycode = 0x00013f;
 527                 nec_gpio     = 1;
 528                 break;
 529         case SAA7134_BOARD_AVERMEDIA_777:
 530         case SAA7134_BOARD_AVERMEDIA_A16AR:
 531                 ir_codes     = &ir_codes_avermedia_table;
 532                 mask_keycode = 0x02F200;
 533                 mask_keydown = 0x000400;
 534                 polling      = 50; // ms
 535                 /* Without this we won't receive key up events */
 536                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 537                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 538                 break;
 539         case SAA7134_BOARD_AVERMEDIA_A16D:
 540                 ir_codes     = &ir_codes_avermedia_a16d_table;
 541                 mask_keycode = 0x02F200;
 542                 mask_keydown = 0x000400;
 543                 polling      = 50; /* ms */
 544                 /* Without this we won't receive key up events */
 545                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 546                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 547                 break;
 548         case SAA7134_BOARD_KWORLD_TERMINATOR:
 549                 ir_codes     = &ir_codes_pixelview_table;
 550                 mask_keycode = 0x00001f;
 551                 mask_keyup   = 0x000060;
 552                 polling      = 50; // ms
 553                 break;
 554         case SAA7134_BOARD_MANLI_MTV001:
 555         case SAA7134_BOARD_MANLI_MTV002:
 556                 ir_codes     = &ir_codes_manli_table;
 557                 mask_keycode = 0x001f00;
 558                 mask_keyup   = 0x004000;
 559                 polling      = 50; /* ms */
 560                 break;
 561         case SAA7134_BOARD_BEHOLD_409FM:
 562         case SAA7134_BOARD_BEHOLD_401:
 563         case SAA7134_BOARD_BEHOLD_403:
 564         case SAA7134_BOARD_BEHOLD_403FM:
 565         case SAA7134_BOARD_BEHOLD_405:
 566         case SAA7134_BOARD_BEHOLD_405FM:
 567         case SAA7134_BOARD_BEHOLD_407:
 568         case SAA7134_BOARD_BEHOLD_407FM:
 569         case SAA7134_BOARD_BEHOLD_409:
 570         case SAA7134_BOARD_BEHOLD_505FM:
 571         case SAA7134_BOARD_BEHOLD_505RDS:
 572         case SAA7134_BOARD_BEHOLD_507_9FM:
 573         case SAA7134_BOARD_BEHOLD_507RDS_MK3:
 574         case SAA7134_BOARD_BEHOLD_507RDS_MK5:
 575                 ir_codes     = &ir_codes_manli_table;
 576                 mask_keycode = 0x003f00;
 577                 mask_keyup   = 0x004000;
 578                 polling      = 50; /* ms */
 579                 break;
 580         case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
 581                 ir_codes     = &ir_codes_behold_columbus_table;
 582                 mask_keycode = 0x003f00;
 583                 mask_keyup   = 0x004000;
 584                 polling      = 50; // ms
 585                 break;
 586         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
 587                 ir_codes     = &ir_codes_pctv_sedna_table;
 588                 mask_keycode = 0x001f00;
 589                 mask_keyup   = 0x004000;
 590                 polling      = 50; // ms
 591                 break;
 592         case SAA7134_BOARD_GOTVIEW_7135:
 593                 ir_codes     = &ir_codes_gotview7135_table;
 594                 mask_keycode = 0x0003CC;
 595                 mask_keydown = 0x000010;
 596                 polling      = 5; /* ms */
 597                 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
 598                 break;
 599         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
 600         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
 601         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
 602                 ir_codes     = &ir_codes_videomate_tv_pvr_table;
 603                 mask_keycode = 0x00003F;
 604                 mask_keyup   = 0x400000;
 605                 polling      = 50; // ms
 606                 break;
 607         case SAA7134_BOARD_PROTEUS_2309:
 608                 ir_codes     = &ir_codes_proteus_2309_table;
 609                 mask_keycode = 0x00007F;
 610                 mask_keyup   = 0x000080;
 611                 polling      = 50; // ms
 612                 break;
 613         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
 614         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
 615                 ir_codes     = &ir_codes_videomate_tv_pvr_table;
 616                 mask_keycode = 0x003F00;
 617                 mask_keyup   = 0x040000;
 618                 break;
 619         case SAA7134_BOARD_FLYDVBS_LR300:
 620         case SAA7134_BOARD_FLYDVBT_LR301:
 621         case SAA7134_BOARD_FLYDVBTDUO:
 622                 ir_codes     = &ir_codes_flydvb_table;
 623                 mask_keycode = 0x0001F00;
 624                 mask_keydown = 0x0040000;
 625                 break;
 626         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
 627         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
 628         case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
 629                 ir_codes     = &ir_codes_asus_pc39_table;
 630                 mask_keydown = 0x0040000;
 631                 rc5_gpio = 1;
 632                 break;
 633         case SAA7134_BOARD_ENCORE_ENLTV:
 634         case SAA7134_BOARD_ENCORE_ENLTV_FM:
 635                 ir_codes     = &ir_codes_encore_enltv_table;
 636                 mask_keycode = 0x00007f;
 637                 mask_keyup   = 0x040000;
 638                 polling      = 50; // ms
 639                 break;
 640         case SAA7134_BOARD_ENCORE_ENLTV_FM53:
 641                 ir_codes     = &ir_codes_encore_enltv_fm53_table;
 642                 mask_keydown = 0x0040000;
 643                 mask_keycode = 0x00007f;
 644                 nec_gpio = 1;
 645                 break;
 646         case SAA7134_BOARD_10MOONSTVMASTER3:
 647                 ir_codes     = &ir_codes_encore_enltv_table;
 648                 mask_keycode = 0x5f80000;
 649                 mask_keyup   = 0x8000000;
 650                 polling      = 50; //ms
 651                 break;
 652         case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
 653                 ir_codes     = &ir_codes_genius_tvgo_a11mce_table;
 654                 mask_keycode = 0xff;
 655                 mask_keydown = 0xf00000;
 656                 polling = 50; /* ms */
 657                 break;
 658         case SAA7134_BOARD_REAL_ANGEL_220:
 659                 ir_codes     = &ir_codes_real_audio_220_32_keys_table;
 660                 mask_keycode = 0x3f00;
 661                 mask_keyup   = 0x4000;
 662                 polling = 50; /* ms */
 663                 break;
 664         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
 665                 ir_codes     = &ir_codes_kworld_plus_tv_analog_table;
 666                 mask_keycode = 0x7f;
 667                 polling = 40; /* ms */
 668                 break;
 669         case SAA7134_BOARD_VIDEOMATE_S350:
 670                 ir_codes     = &ir_codes_videomate_s350_table;
 671                 mask_keycode = 0x003f00;
 672                 mask_keydown = 0x040000;
 673                 break;
 674         case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
 675                 ir_codes     = &ir_codes_winfast_table;
 676                 mask_keycode = 0x5f00;
 677                 mask_keyup   = 0x020000;
 678                 polling      = 50; /* ms */
 679                 break;
 680         break;
 681         }
 682         if (NULL == ir_codes) {
 683                 printk("%s: Oops: IR config error [card=%d]\n",
 684                        dev->name, dev->board);
 685                 return -ENODEV;
 686         }
 687
 688         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 689         input_dev = input_allocate_device();
 690         if (!ir || !input_dev) {
 691                 err = -ENOMEM;
 692                 goto err_out_free;
 693         }
 694
 695         ir->dev = input_dev;
 696
 697         /* init hardware-specific stuff */
 698         ir->mask_keycode = mask_keycode;
 699         ir->mask_keydown = mask_keydown;
 700         ir->mask_keyup   = mask_keyup;
 701         ir->polling      = polling;
 702         ir->rc5_gpio     = rc5_gpio;
 703         ir->nec_gpio     = nec_gpio;
 704
 705         /* init input device */
 706         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
 707                  saa7134_boards[dev->board].name);
 708         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
 709                  pci_name(dev->pci));
 710
 711         err = ir_input_init(input_dev, &ir->ir, ir_type);
 712         if (err < 0)
 713                 goto err_out_free;
 714
 715         input_dev->name = ir->name;
 716         input_dev->phys = ir->phys;
 717         input_dev->id.bustype = BUS_PCI;
 718         input_dev->id.version = 1;
 719         if (dev->pci->subsystem_vendor) {
 720                 input_dev->id.vendor  = dev->pci->subsystem_vendor;
 721                 input_dev->id.product = dev->pci->subsystem_device;
 722         } else {
 723                 input_dev->id.vendor  = dev->pci->vendor;
 724                 input_dev->id.product = dev->pci->device;
 725         }
 726         input_dev->dev.parent = &dev->pci->dev;
 727
 728         dev->remote = ir;
 729         saa7134_ir_start(dev, ir);
 730
 731         err = ir_input_register(ir->dev, ir_codes);
 732         if (err)
 733                 goto err_out_stop;
 734
 735         /* the remote isn't as bouncy as a keyboard */
 736         ir->dev->rep[REP_DELAY] = repeat_delay;
 737         ir->dev->rep[REP_PERIOD] = repeat_period;
 738
 739         return 0;
 740
 741  err_out_stop:
 742         saa7134_ir_stop(dev);
 743         dev->remote = NULL;
 744  err_out_free:
 745         kfree(ir);
 746         return err;
 747 }
 748
 749 void saa7134_input_fini(struct saa7134_dev *dev)
 750 {
 751         if (NULL == dev->remote)
 752                 return;
 753
 754         saa7134_ir_stop(dev);
 755         ir_input_unregister(dev->remote->dev);
 756         kfree(dev->remote);
 757         dev->remote = NULL;
 758 }
 759
 760 void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
 761 {
 762         struct i2c_board_info info;
 763
 764         struct i2c_msg msg_msi = {
 765                 .addr = 0x50,
 766                 .flags = I2C_M_RD,
 767                 .len = 0,
 768                 .buf = NULL,
 769         };
 770
 771         int rc;
 772
 773         if (disable_ir) {
 774                 dprintk("IR has been disabled, not probing for i2c remote\n");
 775                 return;
 776         }
 777
 778         memset(&info, 0, sizeof(struct i2c_board_info));
 779         memset(&dev->init_data, 0, sizeof(dev->init_data));
 780         strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
 781
 782         switch (dev->board) {
 783         case SAA7134_BOARD_PINNACLE_PCTV_110i:
 784         case SAA7134_BOARD_PINNACLE_PCTV_310i:
 785                 dev->init_data.name = "Pinnacle PCTV";
 786                 if (pinnacle_remote == 0) {
 787                         dev->init_data.get_key = get_key_pinnacle_color;
 788                         dev->init_data.ir_codes = &ir_codes_pinnacle_color_table;
 789                         info.addr = 0x47;
 790                 } else {
 791                         dev->init_data.get_key = get_key_pinnacle_grey;
 792                         dev->init_data.ir_codes = &ir_codes_pinnacle_grey_table;
 793                         info.addr = 0x47;
 794                 }
 795                 break;
 796         case SAA7134_BOARD_UPMOST_PURPLE_TV:
 797                 dev->init_data.name = "Purple TV";
 798                 dev->init_data.get_key = get_key_purpletv;
 799                 dev->init_data.ir_codes = &ir_codes_purpletv_table;
 800                 info.addr = 0x7a;
 801                 break;
 802         case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
 803                 dev->init_data.name = "MSI TV@nywhere Plus";
 804                 dev->init_data.get_key = get_key_msi_tvanywhere_plus;
 805                 dev->init_data.ir_codes = &ir_codes_msi_tvanywhere_plus_table;
 806                 info.addr = 0x30;
 807                 /* MSI TV@nywhere Plus controller doesn't seem to
 808                    respond to probes unless we read something from
 809                    an existing device. Weird...
 810                    REVISIT: might no longer be needed */
 811                 rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
 812                 dprintk(KERN_DEBUG "probe 0x%02x @ %s: %s\n",
 813                         msg_msi.addr, dev->i2c_adap.name,
 814                         (1 == rc) ? "yes" : "no");
 815                 break;
 816         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
 817                 dev->init_data.name = "HVR 1110";
 818                 dev->init_data.get_key = get_key_hvr1110;
 819                 dev->init_data.ir_codes = &ir_codes_hauppauge_new_table;
 820                 info.addr = 0x71;
 821                 break;
 822         case SAA7134_BOARD_BEHOLD_607FM_MK3:
 823         case SAA7134_BOARD_BEHOLD_607FM_MK5:
 824         case SAA7134_BOARD_BEHOLD_609FM_MK3:
 825         case SAA7134_BOARD_BEHOLD_609FM_MK5:
 826         case SAA7134_BOARD_BEHOLD_607RDS_MK3:
 827         case SAA7134_BOARD_BEHOLD_607RDS_MK5:
 828         case SAA7134_BOARD_BEHOLD_609RDS_MK3:
 829         case SAA7134_BOARD_BEHOLD_609RDS_MK5:
 830         case SAA7134_BOARD_BEHOLD_M6:
 831         case SAA7134_BOARD_BEHOLD_M63:
 832         case SAA7134_BOARD_BEHOLD_M6_EXTRA:
 833         case SAA7134_BOARD_BEHOLD_H6:
 834         case SAA7134_BOARD_BEHOLD_X7:
 835                 dev->init_data.name = "BeholdTV";
 836                 dev->init_data.get_key = get_key_beholdm6xx;
 837                 dev->init_data.ir_codes = &ir_codes_behold_table;
 838                 info.addr = 0x2d;
 839                 break;
 840         case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
 841         case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
 842                 info.addr = 0x40;
 843                 break;
 844         case SAA7134_BOARD_FLYDVB_TRIO:
 845                 dev->init_data.name = "FlyDVB Trio";
 846                 dev->init_data.get_key = get_key_flydvb_trio;
 847                 dev->init_data.ir_codes = &ir_codes_flydvb_table;
 848                 info.addr = 0x0b;
 849                 break;
 850         default:
 851                 dprintk("No I2C IR support for board %x\n", dev->board);
 852                 return;
 853         }
 854
 855         if (dev->init_data.name)
 856                 info.platform_data = &dev->init_data;
 857         i2c_new_device(&dev->i2c_adap, &info);
 858 }
 859
 860 static int saa7134_rc5_irq(struct saa7134_dev *dev)
 861 {
 862         struct card_ir *ir = dev->remote;
 863         struct timeval tv;
 864         u32 gap;
 865         unsigned long current_jiffies, timeout;
 866
 867         /* get time of bit */
 868         current_jiffies = jiffies;
 869         do_gettimeofday(&tv);
 870
 871         /* avoid overflow with gap >1s */
 872         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
 873                 gap = 200000;
 874         } else {
 875                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
 876                     tv.tv_usec - ir->base_time.tv_usec;
 877         }
 878
 879         /* active code => add bit */
 880         if (ir->active) {
 881                 /* only if in the code (otherwise spurious IRQ or timer
 882                    late) */
 883                 if (ir->last_bit < 28) {
 884                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
 885                             ir_rc5_remote_gap;
 886                         ir->code |= 1 << ir->last_bit;
 887                 }
 888                 /* starting new code */
 889         } else {
 890                 ir->active = 1;
 891                 ir->code = 0;
 892                 ir->base_time = tv;
 893                 ir->last_bit = 0;
 894
 895                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
 896                 mod_timer(&ir->timer_end, timeout);
 897         }
 898
 899         return 1;
 900 }
 901
 902
 903 /* On NEC protocol, One has 2.25 ms, and zero has 1.125 ms
 904    The first pulse (start) has 9 + 4.5 ms
 905  */
 906
 907 static void saa7134_nec_timer(unsigned long data)
 908 {
 909         struct saa7134_dev *dev = (struct saa7134_dev *) data;
 910         struct card_ir *ir = dev->remote;
 911
 912         dprintk("Cancel key repeat\n");
 913
 914         ir_input_nokey(ir->dev, &ir->ir);
 915 }
 916
 917 static void nec_task(unsigned long data)
 918 {
 919         struct saa7134_dev *dev = (struct saa7134_dev *) data;
 920         struct card_ir *ir;
 921         struct timeval tv;
 922         int count, pulse, oldpulse, gap;
 923         u32 ircode = 0, not_code = 0;
 924         int ngap = 0;
 925
 926         if (!data) {
 927                 printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
 928                 /* GPIO will be kept disabled */
 929                 return;
 930         }
 931
 932         ir = dev->remote;
 933
 934         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 935         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 936         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 937
 938         oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
 939         pulse = oldpulse;
 940
 941         do_gettimeofday(&tv);
 942         ir->base_time = tv;
 943
 944         /* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
 945            Unfortunately, using IRQ to decode pulse didn't work, since it uses
 946            a pulse train of 38KHz. This means one pulse on each 52 us
 947          */
 948         do {
 949                 /* Wait until the end of pulse/space or 5 ms */
 950                 for (count = 0; count < 500; count++)  {
 951                         udelay(10);
 952                         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 953                         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 954                         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 955                         pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
 956                                 & ir->mask_keydown;
 957                         if (pulse != oldpulse)
 958                                 break;
 959                 }
 960
 961                 do_gettimeofday(&tv);
 962                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
 963                                 tv.tv_usec - ir->base_time.tv_usec;
 964
 965                 if (!pulse) {
 966                         /* Bit 0 has 560 us, while bit 1 has 1120 us.
 967                            Do something only if bit == 1
 968                          */
 969                         if (ngap && (gap > 560 + 280)) {
 970                                 unsigned int shift = ngap - 1;
 971
 972                                 /* Address first, then command */
 973                                 if (shift < 8) {
 974                                         shift += 8;
 975                                         ircode |= 1 << shift;
 976                                 } else if (shift < 16) {
 977                                         not_code |= 1 << shift;
 978                                 } else if (shift < 24) {
 979                                         shift -= 16;
 980                                         ircode |= 1 << shift;
 981                                 } else {
 982                                         shift -= 24;
 983                                         not_code |= 1 << shift;
 984                                 }
 985                         }
 986                         ngap++;
 987                 }
 988
 989
 990                 ir->base_time = tv;
 991
 992                 /* TIMEOUT - Long pulse */
 993                 if (gap >= 5000)
 994                         break;
 995                 oldpulse = pulse;
 996         } while (ngap < 32);
 997
 998         if (ngap == 32) {
 999                 /* FIXME: should check if not_code == ~ircode */
1000                 ir->code = ir_extract_bits(ircode, ir->mask_keycode);
1001
1002                 dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
1003                          ir->code, ircode, not_code);
1004
1005                 ir_input_keydown(ir->dev, &ir->ir, ir->code);
1006         } else
1007                 dprintk("Repeat last key\n");
1008
1009         /* Keep repeating the last key */
1010         mod_timer(&ir->timer_keyup, jiffies + msecs_to_jiffies(150));
1011
1012         saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
1013 }
1014
1015 static int saa7134_nec_irq(struct saa7134_dev *dev)
1016 {
1017         struct card_ir *ir = dev->remote;
1018
1019         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
1020         tasklet_schedule(&ir->tlet);
1021
1022         return 1;
1023 }