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