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         *ir_key = data[9];
 255         *ir_raw = data[9];
 256
 257         return 1;
 258 }
 259
 260 /* Common (grey or coloured) pinnacle PCTV remote handling
 261  *
 262  */
 263 static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
 264                             int parity_offset, int marker, int code_modulo)
 265 {
 266         unsigned char b[4];
 267         unsigned int start = 0,parity = 0,code = 0;
 268
 269         /* poll IR chip */
 270         if (4 != i2c_master_recv(ir->c, b, 4)) {
 271                 i2cdprintk("read error\n");
 272                 return -EIO;
 273         }
 274
 275         for (start = 0; start < ARRAY_SIZE(b); start++) {
 276                 if (b[start] == marker) {
 277                         code=b[(start+parity_offset + 1) % 4];
 278                         parity=b[(start+parity_offset) % 4];
 279                 }
 280         }
 281
 282         /* Empty Request */
 283         if (parity == 0)
 284                 return 0;
 285
 286         /* Repeating... */
 287         if (ir->old == parity)
 288                 return 0;
 289
 290         ir->old = parity;
 291
 292         /* drop special codes when a key is held down a long time for the grey controller
 293            In this case, the second bit of the code is asserted */
 294         if (marker == 0xfe && (code & 0x40))
 295                 return 0;
 296
 297         code %= code_modulo;
 298
 299         *ir_raw = code;
 300         *ir_key = code;
 301
 302         i2cdprintk("Pinnacle PCTV key %02x\n", code);
 303
 304         return 1;
 305 }
 306
 307 /* The grey pinnacle PCTV remote
 308  *
 309  *  There are one issue with this remote:
 310  *   - I2c packet does not change when the same key is pressed quickly. The workaround
 311  *     is to hold down each key for about half a second, so that another code is generated
 312  *     in the i2c packet, and the function can distinguish key presses.
 313  *
 314  * Sylvain Pasche <sylvain.pasche@gmail.com>
 315  */
 316 static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 317 {
 318
 319         return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
 320 }
 321
 322
 323 /* The new pinnacle PCTV remote (with the colored buttons)
 324  *
 325  * Ricardo Cerqueira <v4l@cerqueira.org>
 326  */
 327 static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 328 {
 329         /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
 330          *
 331          * this is the only value that results in 42 unique
 332          * codes < 128
 333          */
 334
 335         return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
 336 }
 337
 338 void saa7134_input_irq(struct saa7134_dev *dev)
 339 {
 340         struct card_ir *ir = dev->remote;
 341
 342         if (ir->nec_gpio) {
 343                 saa7134_nec_irq(dev);
 344         } else if (!ir->polling && !ir->rc5_gpio) {
 345                 build_key(dev);
 346         } else if (ir->rc5_gpio) {
 347                 saa7134_rc5_irq(dev);
 348         }
 349 }
 350
 351 static void saa7134_input_timer(unsigned long data)
 352 {
 353         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 354         struct card_ir *ir = dev->remote;
 355
 356         build_key(dev);
 357         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
 358 }
 359
 360 void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
 361 {
 362         if (ir->polling) {
 363                 setup_timer(&ir->timer, saa7134_input_timer,
 364                             (unsigned long)dev);
 365                 ir->timer.expires  = jiffies + HZ;
 366                 add_timer(&ir->timer);
 367         } else if (ir->rc5_gpio) {
 368                 /* set timer_end for code completion */
 369                 init_timer(&ir->timer_end);
 370                 ir->timer_end.function = ir_rc5_timer_end;
 371                 ir->timer_end.data = (unsigned long)ir;
 372                 init_timer(&ir->timer_keyup);
 373                 ir->timer_keyup.function = ir_rc5_timer_keyup;
 374                 ir->timer_keyup.data = (unsigned long)ir;
 375                 ir->shift_by = 2;
 376                 ir->start = 0x2;
 377                 ir->addr = 0x17;
 378                 ir->rc5_key_timeout = ir_rc5_key_timeout;
 379                 ir->rc5_remote_gap = ir_rc5_remote_gap;
 380         } else if (ir->nec_gpio) {
 381                 setup_timer(&ir->timer_keyup, saa7134_nec_timer,
 382                             (unsigned long)dev);
 383                 tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
 384         }
 385 }
 386
 387 void saa7134_ir_stop(struct saa7134_dev *dev)
 388 {
 389         if (dev->remote->polling)
 390                 del_timer_sync(&dev->remote->timer);
 391 }
 392
 393 int saa7134_input_init1(struct saa7134_dev *dev)
 394 {
 395         struct card_ir *ir;
 396         struct input_dev *input_dev;
 397         IR_KEYTAB_TYPE *ir_codes = NULL;
 398         u32 mask_keycode = 0;
 399         u32 mask_keydown = 0;
 400         u32 mask_keyup   = 0;
 401         int polling      = 0;
 402         int rc5_gpio     = 0;
 403         int nec_gpio     = 0;
 404         int ir_type      = IR_TYPE_OTHER;
 405         int err;
 406
 407         if (dev->has_remote != SAA7134_REMOTE_GPIO)
 408                 return -ENODEV;
 409         if (disable_ir)
 410                 return -ENODEV;
 411
 412         /* detect & configure */
 413         switch (dev->board) {
 414         case SAA7134_BOARD_FLYVIDEO2000:
 415         case SAA7134_BOARD_FLYVIDEO3000:
 416         case SAA7134_BOARD_FLYTVPLATINUM_FM:
 417         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
 418                 ir_codes     = ir_codes_flyvideo;
 419                 mask_keycode = 0xEC00000;
 420                 mask_keydown = 0x0040000;
 421                 break;
 422         case SAA7134_BOARD_CINERGY400:
 423         case SAA7134_BOARD_CINERGY600:
 424         case SAA7134_BOARD_CINERGY600_MK3:
 425                 ir_codes     = ir_codes_cinergy;
 426                 mask_keycode = 0x00003f;
 427                 mask_keyup   = 0x040000;
 428                 break;
 429         case SAA7134_BOARD_ECS_TVP3XP:
 430         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
 431                 ir_codes     = ir_codes_eztv;
 432                 mask_keycode = 0x00017c;
 433                 mask_keyup   = 0x000002;
 434                 polling      = 50; // ms
 435                 break;
 436         case SAA7134_BOARD_KWORLD_XPERT:
 437         case SAA7134_BOARD_AVACSSMARTTV:
 438                 ir_codes     = ir_codes_pixelview;
 439                 mask_keycode = 0x00001F;
 440                 mask_keyup   = 0x000020;
 441                 polling      = 50; // ms
 442                 break;
 443         case SAA7134_BOARD_MD2819:
 444         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
 445         case SAA7134_BOARD_AVERMEDIA_305:
 446         case SAA7134_BOARD_AVERMEDIA_307:
 447         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
 448         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
 449         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
 450         case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
 451         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
 452         case SAA7134_BOARD_AVERMEDIA_M102:
 453         case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
 454                 ir_codes     = ir_codes_avermedia;
 455                 mask_keycode = 0x0007C8;
 456                 mask_keydown = 0x000010;
 457                 polling      = 50; // ms
 458                 /* Set GPIO pin2 to high to enable the IR controller */
 459                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
 460                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
 461                 break;
 462         case SAA7134_BOARD_AVERMEDIA_M135A:
 463                 ir_codes     = ir_codes_avermedia_m135a;
 464                 mask_keydown = 0x0040000;
 465                 mask_keycode = 0x00013f;
 466                 nec_gpio     = 1;
 467                 break;
 468         case SAA7134_BOARD_AVERMEDIA_777:
 469         case SAA7134_BOARD_AVERMEDIA_A16AR:
 470                 ir_codes     = ir_codes_avermedia;
 471                 mask_keycode = 0x02F200;
 472                 mask_keydown = 0x000400;
 473                 polling      = 50; // ms
 474                 /* Without this we won't receive key up events */
 475                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 476                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 477                 break;
 478         case SAA7134_BOARD_AVERMEDIA_A16D:
 479                 ir_codes     = ir_codes_avermedia_a16d;
 480                 mask_keycode = 0x02F200;
 481                 mask_keydown = 0x000400;
 482                 polling      = 50; /* ms */
 483                 /* Without this we won't receive key up events */
 484                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 485                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 486                 break;
 487         case SAA7134_BOARD_KWORLD_TERMINATOR:
 488                 ir_codes     = ir_codes_pixelview;
 489                 mask_keycode = 0x00001f;
 490                 mask_keyup   = 0x000060;
 491                 polling      = 50; // ms
 492                 break;
 493         case SAA7134_BOARD_MANLI_MTV001:
 494         case SAA7134_BOARD_MANLI_MTV002:
 495                 ir_codes     = ir_codes_manli;
 496                 mask_keycode = 0x001f00;
 497                 mask_keyup   = 0x004000;
 498                 polling      = 50; /* ms */
 499                 break;
 500         case SAA7134_BOARD_BEHOLD_409FM:
 501         case SAA7134_BOARD_BEHOLD_401:
 502         case SAA7134_BOARD_BEHOLD_403:
 503         case SAA7134_BOARD_BEHOLD_403FM:
 504         case SAA7134_BOARD_BEHOLD_405:
 505         case SAA7134_BOARD_BEHOLD_405FM:
 506         case SAA7134_BOARD_BEHOLD_407:
 507         case SAA7134_BOARD_BEHOLD_407FM:
 508         case SAA7134_BOARD_BEHOLD_409:
 509         case SAA7134_BOARD_BEHOLD_505FM:
 510         case SAA7134_BOARD_BEHOLD_505RDS:
 511         case SAA7134_BOARD_BEHOLD_507_9FM:
 512         case SAA7134_BOARD_BEHOLD_507RDS_MK3:
 513         case SAA7134_BOARD_BEHOLD_507RDS_MK5:
 514                 ir_codes     = ir_codes_manli;
 515                 mask_keycode = 0x003f00;
 516                 mask_keyup   = 0x004000;
 517                 polling      = 50; /* ms */
 518                 break;
 519         case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
 520                 ir_codes     = ir_codes_behold_columbus;
 521                 mask_keycode = 0x003f00;
 522                 mask_keyup   = 0x004000;
 523                 polling      = 50; // ms
 524                 break;
 525         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
 526                 ir_codes     = ir_codes_pctv_sedna;
 527                 mask_keycode = 0x001f00;
 528                 mask_keyup   = 0x004000;
 529                 polling      = 50; // ms
 530                 break;
 531         case SAA7134_BOARD_GOTVIEW_7135:
 532                 ir_codes     = ir_codes_gotview7135;
 533                 mask_keycode = 0x0003CC;
 534                 mask_keydown = 0x000010;
 535                 polling      = 5; /* ms */
 536                 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
 537                 break;
 538         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
 539         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
 540         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
 541                 ir_codes     = ir_codes_videomate_tv_pvr;
 542                 mask_keycode = 0x00003F;
 543                 mask_keyup   = 0x400000;
 544                 polling      = 50; // ms
 545                 break;
 546         case SAA7134_BOARD_PROTEUS_2309:
 547                 ir_codes     = ir_codes_proteus_2309;
 548                 mask_keycode = 0x00007F;
 549                 mask_keyup   = 0x000080;
 550                 polling      = 50; // ms
 551                 break;
 552         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
 553         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
 554                 ir_codes     = ir_codes_videomate_tv_pvr;
 555                 mask_keycode = 0x003F00;
 556                 mask_keyup   = 0x040000;
 557                 break;
 558         case SAA7134_BOARD_FLYDVBS_LR300:
 559         case SAA7134_BOARD_FLYDVBT_LR301:
 560         case SAA7134_BOARD_FLYDVBTDUO:
 561                 ir_codes     = ir_codes_flydvb;
 562                 mask_keycode = 0x0001F00;
 563                 mask_keydown = 0x0040000;
 564                 break;
 565         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
 566         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
 567        case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
 568                 ir_codes     = ir_codes_asus_pc39;
 569                 mask_keydown = 0x0040000;
 570                 rc5_gpio = 1;
 571                 break;
 572         case SAA7134_BOARD_ENCORE_ENLTV:
 573         case SAA7134_BOARD_ENCORE_ENLTV_FM:
 574                 ir_codes     = ir_codes_encore_enltv;
 575                 mask_keycode = 0x00007f;
 576                 mask_keyup   = 0x040000;
 577                 polling      = 50; // ms
 578                 break;
 579         case SAA7134_BOARD_ENCORE_ENLTV_FM53:
 580                 ir_codes     = ir_codes_encore_enltv_fm53;
 581                 mask_keydown = 0x0040000;
 582                 mask_keycode = 0x00007f;
 583                 nec_gpio = 1;
 584                 break;
 585         case SAA7134_BOARD_10MOONSTVMASTER3:
 586                 ir_codes     = ir_codes_encore_enltv;
 587                 mask_keycode = 0x5f80000;
 588                 mask_keyup   = 0x8000000;
 589                 polling      = 50; //ms
 590                 break;
 591         case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
 592                 ir_codes     = ir_codes_genius_tvgo_a11mce;
 593                 mask_keycode = 0xff;
 594                 mask_keydown = 0xf00000;
 595                 polling = 50; /* ms */
 596                 break;
 597         case SAA7134_BOARD_REAL_ANGEL_220:
 598                 ir_codes     = ir_codes_real_audio_220_32_keys;
 599                 mask_keycode = 0x3f00;
 600                 mask_keyup   = 0x4000;
 601                 polling = 50; /* ms */
 602                 break;
 603         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
 604                 ir_codes     = ir_codes_kworld_plus_tv_analog;
 605                 mask_keycode = 0x7f;
 606                 polling = 40; /* ms */
 607                 break;
 608         }
 609         if (NULL == ir_codes) {
 610                 printk("%s: Oops: IR config error [card=%d]\n",
 611                        dev->name, dev->board);
 612                 return -ENODEV;
 613         }
 614
 615         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 616         input_dev = input_allocate_device();
 617         if (!ir || !input_dev) {
 618                 err = -ENOMEM;
 619                 goto err_out_free;
 620         }
 621
 622         ir->dev = input_dev;
 623
 624         /* init hardware-specific stuff */
 625         ir->mask_keycode = mask_keycode;
 626         ir->mask_keydown = mask_keydown;
 627         ir->mask_keyup   = mask_keyup;
 628         ir->polling      = polling;
 629         ir->rc5_gpio     = rc5_gpio;
 630         ir->nec_gpio     = nec_gpio;
 631
 632         /* init input device */
 633         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
 634                  saa7134_boards[dev->board].name);
 635         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
 636                  pci_name(dev->pci));
 637
 638         ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
 639         input_dev->name = ir->name;
 640         input_dev->phys = ir->phys;
 641         input_dev->id.bustype = BUS_PCI;
 642         input_dev->id.version = 1;
 643         if (dev->pci->subsystem_vendor) {
 644                 input_dev->id.vendor  = dev->pci->subsystem_vendor;
 645                 input_dev->id.product = dev->pci->subsystem_device;
 646         } else {
 647                 input_dev->id.vendor  = dev->pci->vendor;
 648                 input_dev->id.product = dev->pci->device;
 649         }
 650         input_dev->dev.parent = &dev->pci->dev;
 651
 652         dev->remote = ir;
 653         saa7134_ir_start(dev, ir);
 654
 655         err = input_register_device(ir->dev);
 656         if (err)
 657                 goto err_out_stop;
 658
 659         /* the remote isn't as bouncy as a keyboard */
 660         ir->dev->rep[REP_DELAY] = repeat_delay;
 661         ir->dev->rep[REP_PERIOD] = repeat_period;
 662
 663         return 0;
 664
 665  err_out_stop:
 666         saa7134_ir_stop(dev);
 667         dev->remote = NULL;
 668  err_out_free:
 669         input_free_device(input_dev);
 670         kfree(ir);
 671         return err;
 672 }
 673
 674 void saa7134_input_fini(struct saa7134_dev *dev)
 675 {
 676         if (NULL == dev->remote)
 677                 return;
 678
 679         saa7134_ir_stop(dev);
 680         input_unregister_device(dev->remote->dev);
 681         kfree(dev->remote);
 682         dev->remote = NULL;
 683 }
 684
 685 void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
 686 {
 687         struct i2c_board_info info;
 688         struct IR_i2c_init_data init_data;
 689         const unsigned short addr_list[] = {
 690                 0x7a, 0x47, 0x71, 0x2d,
 691                 I2C_CLIENT_END
 692         };
 693
 694         struct i2c_msg msg_msi = {
 695                 .addr = 0x50,
 696                 .flags = I2C_M_RD,
 697                 .len = 0,
 698                 .buf = NULL,
 699         };
 700
 701         int rc;
 702
 703         if (disable_ir) {
 704                 dprintk("IR has been disabled, not probing for i2c remote\n");
 705                 return;
 706         }
 707
 708         memset(&info, 0, sizeof(struct i2c_board_info));
 709         memset(&init_data, 0, sizeof(struct IR_i2c_init_data));
 710         strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
 711
 712         switch (dev->board) {
 713         case SAA7134_BOARD_PINNACLE_PCTV_110i:
 714         case SAA7134_BOARD_PINNACLE_PCTV_310i:
 715                 init_data.name = "Pinnacle PCTV";
 716                 if (pinnacle_remote == 0) {
 717                         init_data.get_key = get_key_pinnacle_color;
 718                         init_data.ir_codes = ir_codes_pinnacle_color;
 719                 } else {
 720                         init_data.get_key = get_key_pinnacle_grey;
 721                         init_data.ir_codes = ir_codes_pinnacle_grey;
 722                 }
 723                 break;
 724         case SAA7134_BOARD_UPMOST_PURPLE_TV:
 725                 init_data.name = "Purple TV";
 726                 init_data.get_key = get_key_purpletv;
 727                 init_data.ir_codes = ir_codes_purpletv;
 728                 break;
 729         case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
 730                 init_data.name = "MSI TV@nywhere Plus";
 731                 init_data.get_key = get_key_msi_tvanywhere_plus;
 732                 init_data.ir_codes = ir_codes_msi_tvanywhere_plus;
 733                 info.addr = 0x30;
 734                 /* MSI TV@nywhere Plus controller doesn't seem to
 735                    respond to probes unless we read something from
 736                    an existing device. Weird...
 737                    REVISIT: might no longer be needed */
 738                 rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
 739                 dprintk(KERN_DEBUG "probe 0x%02x @ %s: %s\n",
 740                         msg_msi.addr, dev->i2c_adap.name,
 741                         (1 == rc) ? "yes" : "no");
 742                 break;
 743         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
 744                 init_data.name = "HVR 1110";
 745                 init_data.get_key = get_key_hvr1110;
 746                 init_data.ir_codes = ir_codes_hauppauge_new;
 747                 break;
 748         case SAA7134_BOARD_BEHOLD_607FM_MK3:
 749         case SAA7134_BOARD_BEHOLD_607FM_MK5:
 750         case SAA7134_BOARD_BEHOLD_609FM_MK3:
 751         case SAA7134_BOARD_BEHOLD_609FM_MK5:
 752         case SAA7134_BOARD_BEHOLD_607RDS_MK3:
 753         case SAA7134_BOARD_BEHOLD_607RDS_MK5:
 754         case SAA7134_BOARD_BEHOLD_609RDS_MK3:
 755         case SAA7134_BOARD_BEHOLD_609RDS_MK5:
 756         case SAA7134_BOARD_BEHOLD_M6:
 757         case SAA7134_BOARD_BEHOLD_M63:
 758         case SAA7134_BOARD_BEHOLD_M6_EXTRA:
 759         case SAA7134_BOARD_BEHOLD_H6:
 760                 init_data.name = "BeholdTV";
 761                 init_data.get_key = get_key_beholdm6xx;
 762                 init_data.ir_codes = ir_codes_behold;
 763                 break;
 764         case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
 765         case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
 766                 info.addr = 0x40;
 767                 break;
 768         }
 769
 770         if (init_data.name)
 771                 info.platform_data = &init_data;
 772         /* No need to probe if address is known */
 773         if (info.addr) {
 774                 i2c_new_device(&dev->i2c_adap, &info);
 775                 return;
 776         }
 777
 778         /* Address not known, fallback to probing */
 779         i2c_new_probed_device(&dev->i2c_adap, &info, addr_list);
 780 }
 781
 782 static int saa7134_rc5_irq(struct saa7134_dev *dev)
 783 {
 784         struct card_ir *ir = dev->remote;
 785         struct timeval tv;
 786         u32 gap;
 787         unsigned long current_jiffies, timeout;
 788
 789         /* get time of bit */
 790         current_jiffies = jiffies;
 791         do_gettimeofday(&tv);
 792
 793         /* avoid overflow with gap >1s */
 794         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
 795                 gap = 200000;
 796         } else {
 797                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
 798                     tv.tv_usec - ir->base_time.tv_usec;
 799         }
 800
 801         /* active code => add bit */
 802         if (ir->active) {
 803                 /* only if in the code (otherwise spurious IRQ or timer
 804                    late) */
 805                 if (ir->last_bit < 28) {
 806                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
 807                             ir_rc5_remote_gap;
 808                         ir->code |= 1 << ir->last_bit;
 809                 }
 810                 /* starting new code */
 811         } else {
 812                 ir->active = 1;
 813                 ir->code = 0;
 814                 ir->base_time = tv;
 815                 ir->last_bit = 0;
 816
 817                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
 818                 mod_timer(&ir->timer_end, timeout);
 819         }
 820
 821         return 1;
 822 }
 823
 824
 825 /* On NEC protocol, One has 2.25 ms, and zero has 1.125 ms
 826    The first pulse (start) has 9 + 4.5 ms
 827  */
 828
 829 static void saa7134_nec_timer(unsigned long data)
 830 {
 831         struct saa7134_dev *dev = (struct saa7134_dev *) data;
 832         struct card_ir *ir = dev->remote;
 833
 834         dprintk("Cancel key repeat\n");
 835
 836         ir_input_nokey(ir->dev, &ir->ir);
 837 }
 838
 839 static void nec_task(unsigned long data)
 840 {
 841         struct saa7134_dev *dev = (struct saa7134_dev *) data;
 842         struct card_ir *ir;
 843         struct timeval tv;
 844         int count, pulse, oldpulse, gap;
 845         u32 ircode = 0, not_code = 0;
 846         int ngap = 0;
 847
 848         if (!data) {
 849                 printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
 850                 /* GPIO will be kept disabled */
 851                 return;
 852         }
 853
 854         ir = dev->remote;
 855
 856         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 857         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 858         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 859
 860         oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
 861         pulse = oldpulse;
 862
 863         do_gettimeofday(&tv);
 864         ir->base_time = tv;
 865
 866         /* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
 867            Unfortunately, using IRQ to decode pulse didn't work, since it uses
 868            a pulse train of 38KHz. This means one pulse on each 52 us
 869          */
 870         do {
 871                 /* Wait until the end of pulse/space or 5 ms */
 872                 for (count = 0; count < 500; count++)  {
 873                         udelay(10);
 874                         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 875                         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 876                         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 877                         pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
 878                                 & ir->mask_keydown;
 879                         if (pulse != oldpulse)
 880                                 break;
 881                 }
 882
 883                 do_gettimeofday(&tv);
 884                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
 885                                 tv.tv_usec - ir->base_time.tv_usec;
 886
 887                 if (!pulse) {
 888                         /* Bit 0 has 560 us, while bit 1 has 1120 us.
 889                            Do something only if bit == 1
 890                          */
 891                         if (ngap && (gap > 560 + 280)) {
 892                                 unsigned int shift = ngap - 1;
 893
 894                                 /* Address first, then command */
 895                                 if (shift < 8) {
 896                                         shift += 8;
 897                                         ircode |= 1 << shift;
 898                                 } else if (shift < 16) {
 899                                         not_code |= 1 << shift;
 900                                 } else if (shift < 24) {
 901                                         shift -= 16;
 902                                         ircode |= 1 << shift;
 903                                 } else {
 904                                         shift -= 24;
 905                                         not_code |= 1 << shift;
 906                                 }
 907                         }
 908                         ngap++;
 909                 }
 910
 911
 912                 ir->base_time = tv;
 913
 914                 /* TIMEOUT - Long pulse */
 915                 if (gap >= 5000)
 916                         break;
 917                 oldpulse = pulse;
 918         } while (ngap < 32);
 919
 920         if (ngap == 32) {
 921                 /* FIXME: should check if not_code == ~ircode */
 922                 ir->code = ir_extract_bits(ircode, ir->mask_keycode);
 923
 924                 dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
 925                          ir->code, ircode, not_code);
 926
 927                 ir_input_keydown(ir->dev, &ir->ir, ir->code, ir->code);
 928         } else
 929                 dprintk("Repeat last key\n");
 930
 931         /* Keep repeating the last key */
 932         mod_timer(&ir->timer_keyup, jiffies + msecs_to_jiffies(150));
 933
 934         saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 935 }
 936
 937 static int saa7134_nec_irq(struct saa7134_dev *dev)
 938 {
 939         struct card_ir *ir = dev->remote;
 940
 941         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 942         tasklet_schedule(&ir->tlet);
 943
 944         return 1;
 945 }