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 #include <linux/slab.h>
  27
  28 #include "saa7134-reg.h"
  29 #include "saa7134.h"
  30
  31 #define MODULE_NAME "saa7134"
  32
  33 static unsigned int disable_ir;
  34 module_param(disable_ir, int, 0444);
  35 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
  36
  37 static unsigned int ir_debug;
  38 module_param(ir_debug, int, 0644);
  39 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
  40
  41 static int pinnacle_remote;
  42 module_param(pinnacle_remote, int, 0644);    /* Choose Pinnacle PCTV remote */
  43 MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
  44
  45 static int ir_rc5_remote_gap = 885;
  46 module_param(ir_rc5_remote_gap, int, 0644);
  47 static int ir_rc5_key_timeout = 115;
  48 module_param(ir_rc5_key_timeout, int, 0644);
  49
  50 static int repeat_delay = 500;
  51 module_param(repeat_delay, int, 0644);
  52 MODULE_PARM_DESC(repeat_delay, "delay before key repeat started");
  53 static int repeat_period = 33;
  54 module_param(repeat_period, int, 0644);
  55 MODULE_PARM_DESC(repeat_period, "repeat period between "
  56     "keypresses when key is down");
  57
  58 static unsigned int disable_other_ir;
  59 module_param(disable_other_ir, int, 0644);
  60 MODULE_PARM_DESC(disable_other_ir, "disable full codes of "
  61     "alternative remotes from other manufacturers");
  62
  63 #define dprintk(fmt, arg...)    if (ir_debug) \
  64         printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
  65 #define i2cdprintk(fmt, arg...)    if (ir_debug) \
  66         printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg)
  67
  68 /* Helper functions for RC5 and NEC decoding at GPIO16 or GPIO18 */
  69 static int saa7134_rc5_irq(struct saa7134_dev *dev);
  70 static int saa7134_nec_irq(struct saa7134_dev *dev);
  71 static void nec_task(unsigned long data);
  72 static void saa7134_nec_timer(unsigned long data);
  73
  74 /* -------------------- GPIO generic keycode builder -------------------- */
  75
  76 static int build_key(struct saa7134_dev *dev)
  77 {
  78         struct card_ir *ir = dev->remote;
  79         u32 gpio, data;
  80
  81         /* here comes the additional handshake steps for some cards */
  82         switch (dev->board) {
  83         case SAA7134_BOARD_GOTVIEW_7135:
  84                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
  85                 saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
  86                 break;
  87         }
  88         /* rising SAA7134_GPIO_GPRESCAN reads the status */
  89         saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  90         saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  91
  92         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
  93         if (ir->polling) {
  94                 if (ir->last_gpio == gpio)
  95                         return 0;
  96                 ir->last_gpio = gpio;
  97         }
  98
  99         data = ir_extract_bits(gpio, ir->mask_keycode);
 100         dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
 101                 gpio, ir->mask_keycode, data);
 102
 103         switch (dev->board) {
 104         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
 105                 if (data == ir->mask_keycode)
 106                         ir_input_nokey(ir->dev, &ir->ir);
 107                 else
 108                         ir_input_keydown(ir->dev, &ir->ir, data);
 109                 return 0;
 110         }
 111
 112         if (ir->polling) {
 113                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 114                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 115                         ir_input_keydown(ir->dev, &ir->ir, data);
 116                 } else {
 117                         ir_input_nokey(ir->dev, &ir->ir);
 118                 }
 119         }
 120         else {  /* IRQ driven mode - handle key press and release in one go */
 121                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 122                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 123                         ir_input_keydown(ir->dev, &ir->ir, data);
 124                         ir_input_nokey(ir->dev, &ir->ir);
 125                 }
 126         }
 127
 128         return 0;
 129 }
 130
 131 /* --------------------- Chip specific I2C key builders ----------------- */
 132
 133 static int get_key_flydvb_trio(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 134 {
 135         int gpio;
 136         int attempt = 0;
 137         unsigned char b;
 138
 139         /* We need this to access GPI Used by the saa_readl macro. */
 140         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 141
 142         if (dev == NULL) {
 143                 dprintk("get_key_flydvb_trio: "
 144                          "gir->c->adapter->algo_data is NULL!\n");
 145                 return -EIO;
 146         }
 147
 148         /* rising SAA7134_GPIGPRESCAN reads the status */
 149         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 150         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 151
 152         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 153
 154         if (0x40000 & ~gpio)
 155                 return 0; /* No button press */
 156
 157         /* No button press - only before first key pressed */
 158         if (b == 0xFF)
 159                 return 0;
 160
 161         /* poll IR chip */
 162         /* weak up the IR chip */
 163         b = 0;
 164
 165         while (1 != i2c_master_send(ir->c, &b, 1)) {
 166                 if ((attempt++) < 10) {
 167                         /*
 168                          * wait a bit for next attempt -
 169                          * I don't know how make it better
 170                          */
 171                         msleep(10);
 172                         continue;
 173                 }
 174                 i2cdprintk("send wake up byte to pic16C505 (IR chip)"
 175                            "failed %dx\n", attempt);
 176                 return -EIO;
 177         }
 178         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 179                 i2cdprintk("read error\n");
 180                 return -EIO;
 181         }
 182
 183         *ir_key = b;
 184         *ir_raw = b;
 185         return 1;
 186 }
 187
 188 static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key,
 189                                        u32 *ir_raw)
 190 {
 191         unsigned char b;
 192         int gpio;
 193
 194         /* <dev> is needed to access GPIO. Used by the saa_readl macro. */
 195         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 196         if (dev == NULL) {
 197                 dprintk("get_key_msi_tvanywhere_plus: "
 198                         "gir->c->adapter->algo_data is NULL!\n");
 199                 return -EIO;
 200         }
 201
 202         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 203
 204         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 205         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 206
 207         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 208
 209         /* GPIO&0x40 is pulsed low when a button is pressed. Don't do
 210            I2C receive if gpio&0x40 is not low. */
 211
 212         if (gpio & 0x40)
 213                 return 0;       /* No button press */
 214
 215         /* GPIO says there is a button press. Get it. */
 216
 217         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 218                 i2cdprintk("read error\n");
 219                 return -EIO;
 220         }
 221
 222         /* No button press */
 223
 224         if (b == 0xff)
 225                 return 0;
 226
 227         /* Button pressed */
 228
 229         dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
 230         *ir_key = b;
 231         *ir_raw = b;
 232         return 1;
 233 }
 234
 235 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 236 {
 237         unsigned char b;
 238
 239         /* poll IR chip */
 240         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 241                 i2cdprintk("read error\n");
 242                 return -EIO;
 243         }
 244
 245         /* no button press */
 246         if (b==0)
 247                 return 0;
 248
 249         /* repeating */
 250         if (b & 0x80)
 251                 return 1;
 252
 253         *ir_key = b;
 254         *ir_raw = b;
 255         return 1;
 256 }
 257
 258 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 259 {
 260         unsigned char buf[5], cod4, code3, code4;
 261
 262         /* poll IR chip */
 263         if (5 != i2c_master_recv(ir->c, buf, 5))
 264                 return -EIO;
 265
 266         cod4    = buf[4];
 267         code4   = (cod4 >> 2);
 268         code3   = buf[3];
 269         if (code3 == 0)
 270                 /* no key pressed */
 271                 return 0;
 272
 273         /* return key */
 274         *ir_key = code4;
 275         *ir_raw = code4;
 276         return 1;
 277 }
 278
 279
 280 static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 281 {
 282         unsigned char data[12];
 283         u32 gpio;
 284
 285         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 286
 287         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 288         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 289         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 290
 291         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 292
 293         if (0x400000 & ~gpio)
 294                 return 0; /* No button press */
 295
 296         ir->c->addr = 0x5a >> 1;
 297
 298         if (12 != i2c_master_recv(ir->c, data, 12)) {
 299                 i2cdprintk("read error\n");
 300                 return -EIO;
 301         }
 302         /* IR of this card normally decode signals NEC-standard from
 303          * - Sven IHOO MT 5.1R remote. xxyye718
 304          * - Sven DVD HD-10xx remote. xxyyf708
 305          * - BBK ...
 306          * - mayby others
 307          * So, skip not our, if disable full codes mode.
 308          */
 309         if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
 310                 return 0;
 311
 312         /* Wrong data decode fix */
 313         if (data[9] != (unsigned char)(~data[8]))
 314                 return 0;
 315
 316         *ir_key = data[9];
 317         *ir_raw = data[9];
 318
 319         return 1;
 320 }
 321
 322 /* Common (grey or coloured) pinnacle PCTV remote handling
 323  *
 324  */
 325 static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
 326                             int parity_offset, int marker, int code_modulo)
 327 {
 328         unsigned char b[4];
 329         unsigned int start = 0,parity = 0,code = 0;
 330
 331         /* poll IR chip */
 332         if (4 != i2c_master_recv(ir->c, b, 4)) {
 333                 i2cdprintk("read error\n");
 334                 return -EIO;
 335         }
 336
 337         for (start = 0; start < ARRAY_SIZE(b); start++) {
 338                 if (b[start] == marker) {
 339                         code=b[(start+parity_offset + 1) % 4];
 340                         parity=b[(start+parity_offset) % 4];
 341                 }
 342         }
 343
 344         /* Empty Request */
 345         if (parity == 0)
 346                 return 0;
 347
 348         /* Repeating... */
 349         if (ir->old == parity)
 350                 return 0;
 351
 352         ir->old = parity;
 353
 354         /* drop special codes when a key is held down a long time for the grey controller
 355            In this case, the second bit of the code is asserted */
 356         if (marker == 0xfe && (code & 0x40))
 357                 return 0;
 358
 359         code %= code_modulo;
 360
 361         *ir_raw = code;
 362         *ir_key = code;
 363
 364         i2cdprintk("Pinnacle PCTV key %02x\n", code);
 365
 366         return 1;
 367 }
 368
 369 /* The grey pinnacle PCTV remote
 370  *
 371  *  There are one issue with this remote:
 372  *   - I2c packet does not change when the same key is pressed quickly. The workaround
 373  *     is to hold down each key for about half a second, so that another code is generated
 374  *     in the i2c packet, and the function can distinguish key presses.
 375  *
 376  * Sylvain Pasche <sylvain.pasche@gmail.com>
 377  */
 378 static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 379 {
 380
 381         return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
 382 }
 383
 384
 385 /* The new pinnacle PCTV remote (with the colored buttons)
 386  *
 387  * Ricardo Cerqueira <v4l@cerqueira.org>
 388  */
 389 static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 390 {
 391         /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
 392          *
 393          * this is the only value that results in 42 unique
 394          * codes < 128
 395          */
 396
 397         return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
 398 }
 399
 400 void saa7134_input_irq(struct saa7134_dev *dev)
 401 {
 402         struct card_ir *ir = dev->remote;
 403
 404         if (ir->nec_gpio) {
 405                 saa7134_nec_irq(dev);
 406         } else if (!ir->polling && !ir->rc5_gpio) {
 407                 build_key(dev);
 408         } else if (ir->rc5_gpio) {
 409                 saa7134_rc5_irq(dev);
 410         }
 411 }
 412
 413 static void saa7134_input_timer(unsigned long data)
 414 {
 415         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 416         struct card_ir *ir = dev->remote;
 417
 418         build_key(dev);
 419         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
 420 }
 421
 422 void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
 423 {
 424         if (ir->running)
 425                 return;
 426
 427         ir->running = 1;
 428         if (ir->polling) {
 429                 setup_timer(&ir->timer, saa7134_input_timer,
 430                             (unsigned long)dev);
 431                 ir->timer.expires  = jiffies + HZ;
 432                 add_timer(&ir->timer);
 433         } else if (ir->rc5_gpio) {
 434                 /* set timer_end for code completion */
 435                 init_timer(&ir->timer_end);
 436                 ir->timer_end.function = ir_rc5_timer_end;
 437                 ir->timer_end.data = (unsigned long)ir;
 438                 init_timer(&ir->timer_keyup);
 439                 ir->timer_keyup.function = ir_rc5_timer_keyup;
 440                 ir->timer_keyup.data = (unsigned long)ir;
 441                 ir->shift_by = 2;
 442                 ir->start = 0x2;
 443                 ir->addr = 0x17;
 444                 ir->rc5_key_timeout = ir_rc5_key_timeout;
 445                 ir->rc5_remote_gap = ir_rc5_remote_gap;
 446         } else if (ir->nec_gpio) {
 447                 setup_timer(&ir->timer_keyup, saa7134_nec_timer,
 448                             (unsigned long)dev);
 449                 tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
 450         }
 451 }
 452
 453 void saa7134_ir_stop(struct saa7134_dev *dev)
 454 {
 455         struct card_ir *ir = dev->remote;
 456
 457         if (!ir->running)
 458                 return;
 459         if (dev->remote->polling)
 460                 del_timer_sync(&dev->remote->timer);
 461         else if (ir->rc5_gpio)
 462                 del_timer_sync(&ir->timer_end);
 463         else if (ir->nec_gpio)
 464                 tasklet_kill(&ir->tlet);
 465         ir->running = 0;
 466 }
 467
 468 int saa7134_ir_change_protocol(void *priv, u64 ir_type)
 469 {
 470         struct saa7134_dev *dev = priv;
 471         struct card_ir *ir = dev->remote;
 472         u32 nec_gpio, rc5_gpio;
 473
 474         if (ir_type == IR_TYPE_RC5) {
 475                 dprintk("Changing protocol to RC5\n");
 476                 nec_gpio = 0;
 477                 rc5_gpio = 1;
 478         } else if (ir_type == IR_TYPE_NEC) {
 479                 dprintk("Changing protocol to NEC\n");
 480                 nec_gpio = 1;
 481                 rc5_gpio = 0;
 482         } else {
 483                 dprintk("IR protocol type %ud is not supported\n",
 484                         (unsigned)ir_type);
 485                 return -EINVAL;
 486         }
 487
 488         if (ir->running) {
 489                 saa7134_ir_stop(dev);
 490                 ir->nec_gpio = nec_gpio;
 491                 ir->rc5_gpio = rc5_gpio;
 492                 saa7134_ir_start(dev, ir);
 493         } else {
 494                 ir->nec_gpio = nec_gpio;
 495                 ir->rc5_gpio = rc5_gpio;
 496         }
 497
 498         return 0;
 499 }
 500
 501 int saa7134_input_init1(struct saa7134_dev *dev)
 502 {
 503         struct card_ir *ir;
 504         struct input_dev *input_dev;
 505         struct ir_scancode_table *ir_codes = NULL;
 506         u32 mask_keycode = 0;
 507         u32 mask_keydown = 0;
 508         u32 mask_keyup   = 0;
 509         int polling      = 0;
 510         int rc5_gpio     = 0;
 511         int nec_gpio     = 0;
 512         u64 ir_type = IR_TYPE_OTHER;
 513         int err;
 514
 515         if (dev->has_remote != SAA7134_REMOTE_GPIO)
 516                 return -ENODEV;
 517         if (disable_ir)
 518                 return -ENODEV;
 519
 520         /* detect & configure */
 521         switch (dev->board) {
 522         case SAA7134_BOARD_FLYVIDEO2000:
 523         case SAA7134_BOARD_FLYVIDEO3000:
 524         case SAA7134_BOARD_HAWELL_HW_404M7:
 525         case SAA7134_BOARD_FLYTVPLATINUM_FM:
 526         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
 527         case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
 528                 ir_codes     = &ir_codes_flyvideo_table;
 529                 mask_keycode = 0xEC00000;
 530                 mask_keydown = 0x0040000;
 531                 break;
 532         case SAA7134_BOARD_CINERGY400:
 533         case SAA7134_BOARD_CINERGY600:
 534         case SAA7134_BOARD_CINERGY600_MK3:
 535                 ir_codes     = &ir_codes_cinergy_table;
 536                 mask_keycode = 0x00003f;
 537                 mask_keyup   = 0x040000;
 538                 break;
 539         case SAA7134_BOARD_ECS_TVP3XP:
 540         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
 541                 ir_codes     = &ir_codes_eztv_table;
 542                 mask_keycode = 0x00017c;
 543                 mask_keyup   = 0x000002;
 544                 polling      = 50; // ms
 545                 break;
 546         case SAA7134_BOARD_KWORLD_XPERT:
 547         case SAA7134_BOARD_AVACSSMARTTV:
 548                 ir_codes     = &ir_codes_pixelview_table;
 549                 mask_keycode = 0x00001F;
 550                 mask_keyup   = 0x000020;
 551                 polling      = 50; // ms
 552                 break;
 553         case SAA7134_BOARD_MD2819:
 554         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
 555         case SAA7134_BOARD_AVERMEDIA_305:
 556         case SAA7134_BOARD_AVERMEDIA_307:
 557         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
 558         case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
 559         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
 560         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
 561         case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
 562         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
 563         case SAA7134_BOARD_AVERMEDIA_M102:
 564         case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
 565                 ir_codes     = &ir_codes_avermedia_table;
 566                 mask_keycode = 0x0007C8;
 567                 mask_keydown = 0x000010;
 568                 polling      = 50; // ms
 569                 /* Set GPIO pin2 to high to enable the IR controller */
 570                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
 571                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
 572                 break;
 573         case SAA7134_BOARD_AVERMEDIA_M135A:
 574                 ir_codes     = &ir_codes_avermedia_m135a_rm_jx_table;
 575                 mask_keydown = 0x0040000;
 576                 mask_keycode = 0xffff;
 577                 nec_gpio     = 1;
 578                 break;
 579         case SAA7134_BOARD_AVERMEDIA_777:
 580         case SAA7134_BOARD_AVERMEDIA_A16AR:
 581                 ir_codes     = &ir_codes_avermedia_table;
 582                 mask_keycode = 0x02F200;
 583                 mask_keydown = 0x000400;
 584                 polling      = 50; // ms
 585                 /* Without this we won't receive key up events */
 586                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 587                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 588                 break;
 589         case SAA7134_BOARD_AVERMEDIA_A16D:
 590                 ir_codes     = &ir_codes_avermedia_a16d_table;
 591                 mask_keycode = 0x02F200;
 592                 mask_keydown = 0x000400;
 593                 polling      = 50; /* ms */
 594                 /* Without this we won't receive key up events */
 595                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 596                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 597                 break;
 598         case SAA7134_BOARD_KWORLD_TERMINATOR:
 599                 ir_codes     = &ir_codes_pixelview_table;
 600                 mask_keycode = 0x00001f;
 601                 mask_keyup   = 0x000060;
 602                 polling      = 50; // ms
 603                 break;
 604         case SAA7134_BOARD_MANLI_MTV001:
 605         case SAA7134_BOARD_MANLI_MTV002:
 606                 ir_codes     = &ir_codes_manli_table;
 607                 mask_keycode = 0x001f00;
 608                 mask_keyup   = 0x004000;
 609                 polling      = 50; /* ms */
 610                 break;
 611         case SAA7134_BOARD_BEHOLD_409FM:
 612         case SAA7134_BOARD_BEHOLD_401:
 613         case SAA7134_BOARD_BEHOLD_403:
 614         case SAA7134_BOARD_BEHOLD_403FM:
 615         case SAA7134_BOARD_BEHOLD_405:
 616         case SAA7134_BOARD_BEHOLD_405FM:
 617         case SAA7134_BOARD_BEHOLD_407:
 618         case SAA7134_BOARD_BEHOLD_407FM:
 619         case SAA7134_BOARD_BEHOLD_409:
 620         case SAA7134_BOARD_BEHOLD_505FM:
 621         case SAA7134_BOARD_BEHOLD_505RDS_MK5:
 622         case SAA7134_BOARD_BEHOLD_505RDS_MK3:
 623         case SAA7134_BOARD_BEHOLD_507_9FM:
 624         case SAA7134_BOARD_BEHOLD_507RDS_MK3:
 625         case SAA7134_BOARD_BEHOLD_507RDS_MK5:
 626                 ir_codes     = &ir_codes_manli_table;
 627                 mask_keycode = 0x003f00;
 628                 mask_keyup   = 0x004000;
 629                 polling      = 50; /* ms */
 630                 break;
 631         case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
 632                 ir_codes     = &ir_codes_behold_columbus_table;
 633                 mask_keycode = 0x003f00;
 634                 mask_keyup   = 0x004000;
 635                 polling      = 50; // ms
 636                 break;
 637         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
 638                 ir_codes     = &ir_codes_pctv_sedna_table;
 639                 mask_keycode = 0x001f00;
 640                 mask_keyup   = 0x004000;
 641                 polling      = 50; // ms
 642                 break;
 643         case SAA7134_BOARD_GOTVIEW_7135:
 644                 ir_codes     = &ir_codes_gotview7135_table;
 645                 mask_keycode = 0x0003CC;
 646                 mask_keydown = 0x000010;
 647                 polling      = 5; /* ms */
 648                 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
 649                 break;
 650         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
 651         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
 652         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
 653                 ir_codes     = &ir_codes_videomate_tv_pvr_table;
 654                 mask_keycode = 0x00003F;
 655                 mask_keyup   = 0x400000;
 656                 polling      = 50; // ms
 657                 break;
 658         case SAA7134_BOARD_PROTEUS_2309:
 659                 ir_codes     = &ir_codes_proteus_2309_table;
 660                 mask_keycode = 0x00007F;
 661                 mask_keyup   = 0x000080;
 662                 polling      = 50; // ms
 663                 break;
 664         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
 665         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
 666                 ir_codes     = &ir_codes_videomate_tv_pvr_table;
 667                 mask_keycode = 0x003F00;
 668                 mask_keyup   = 0x040000;
 669                 break;
 670         case SAA7134_BOARD_FLYDVBS_LR300:
 671         case SAA7134_BOARD_FLYDVBT_LR301:
 672         case SAA7134_BOARD_FLYDVBTDUO:
 673                 ir_codes     = &ir_codes_flydvb_table;
 674                 mask_keycode = 0x0001F00;
 675                 mask_keydown = 0x0040000;
 676                 break;
 677         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
 678         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
 679         case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
 680                 ir_codes     = &ir_codes_asus_pc39_table;
 681                 mask_keydown = 0x0040000;
 682                 rc5_gpio = 1;
 683                 break;
 684         case SAA7134_BOARD_ENCORE_ENLTV:
 685         case SAA7134_BOARD_ENCORE_ENLTV_FM:
 686                 ir_codes     = &ir_codes_encore_enltv_table;
 687                 mask_keycode = 0x00007f;
 688                 mask_keyup   = 0x040000;
 689                 polling      = 50; // ms
 690                 break;
 691         case SAA7134_BOARD_ENCORE_ENLTV_FM53:
 692                 ir_codes     = &ir_codes_encore_enltv_fm53_table;
 693                 mask_keydown = 0x0040000;
 694                 mask_keycode = 0x00007f;
 695                 nec_gpio = 1;
 696                 break;
 697         case SAA7134_BOARD_10MOONSTVMASTER3:
 698                 ir_codes     = &ir_codes_encore_enltv_table;
 699                 mask_keycode = 0x5f80000;
 700                 mask_keyup   = 0x8000000;
 701                 polling      = 50; //ms
 702                 break;
 703         case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
 704                 ir_codes     = &ir_codes_genius_tvgo_a11mce_table;
 705                 mask_keycode = 0xff;
 706                 mask_keydown = 0xf00000;
 707                 polling = 50; /* ms */
 708                 break;
 709         case SAA7134_BOARD_REAL_ANGEL_220:
 710                 ir_codes     = &ir_codes_real_audio_220_32_keys_table;
 711                 mask_keycode = 0x3f00;
 712                 mask_keyup   = 0x4000;
 713                 polling = 50; /* ms */
 714                 break;
 715         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
 716                 ir_codes     = &ir_codes_kworld_plus_tv_analog_table;
 717                 mask_keycode = 0x7f;
 718                 polling = 40; /* ms */
 719                 break;
 720         case SAA7134_BOARD_VIDEOMATE_S350:
 721                 ir_codes     = &ir_codes_videomate_s350_table;
 722                 mask_keycode = 0x003f00;
 723                 mask_keydown = 0x040000;
 724                 break;
 725         case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
 726                 ir_codes     = &ir_codes_winfast_table;
 727                 mask_keycode = 0x5f00;
 728                 mask_keyup   = 0x020000;
 729                 polling      = 50; /* ms */
 730                 break;
 731         break;
 732         }
 733         if (NULL == ir_codes) {
 734                 printk("%s: Oops: IR config error [card=%d]\n",
 735                        dev->name, dev->board);
 736                 return -ENODEV;
 737         }
 738
 739         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 740         input_dev = input_allocate_device();
 741         if (!ir || !input_dev) {
 742                 err = -ENOMEM;
 743                 goto err_out_free;
 744         }
 745
 746         ir->dev = input_dev;
 747         dev->remote = ir;
 748
 749         ir->running = 0;
 750
 751         /* init hardware-specific stuff */
 752         ir->mask_keycode = mask_keycode;
 753         ir->mask_keydown = mask_keydown;
 754         ir->mask_keyup   = mask_keyup;
 755         ir->polling      = polling;
 756         ir->rc5_gpio     = rc5_gpio;
 757         ir->nec_gpio     = nec_gpio;
 758
 759         /* init input device */
 760         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
 761                  saa7134_boards[dev->board].name);
 762         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
 763                  pci_name(dev->pci));
 764
 765         if (ir_codes->ir_type != IR_TYPE_OTHER) {
 766                 ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC;
 767                 ir->props.priv = dev;
 768                 ir->props.change_protocol = saa7134_ir_change_protocol;
 769
 770                 /* Set IR protocol */
 771                 saa7134_ir_change_protocol(ir->props.priv, ir_codes->ir_type);
 772         }
 773         err = ir_input_init(input_dev, &ir->ir, ir_type);
 774         if (err < 0)
 775                 goto err_out_free;
 776
 777         input_dev->name = ir->name;
 778         input_dev->phys = ir->phys;
 779         input_dev->id.bustype = BUS_PCI;
 780         input_dev->id.version = 1;
 781         if (dev->pci->subsystem_vendor) {
 782                 input_dev->id.vendor  = dev->pci->subsystem_vendor;
 783                 input_dev->id.product = dev->pci->subsystem_device;
 784         } else {
 785                 input_dev->id.vendor  = dev->pci->vendor;
 786                 input_dev->id.product = dev->pci->device;
 787         }
 788         input_dev->dev.parent = &dev->pci->dev;
 789
 790         err = ir_input_register(ir->dev, ir_codes, &ir->props, MODULE_NAME);
 791         if (err)
 792                 goto err_out_stop;
 793
 794         saa7134_ir_start(dev, ir);
 795
 796         /* the remote isn't as bouncy as a keyboard */
 797         ir->dev->rep[REP_DELAY] = repeat_delay;
 798         ir->dev->rep[REP_PERIOD] = repeat_period;
 799
 800         return 0;
 801
 802  err_out_stop:
 803         saa7134_ir_stop(dev);
 804         dev->remote = NULL;
 805  err_out_free:
 806         kfree(ir);
 807         return err;
 808 }
 809
 810 void saa7134_input_fini(struct saa7134_dev *dev)
 811 {
 812         if (NULL == dev->remote)
 813                 return;
 814
 815         saa7134_ir_stop(dev);
 816         ir_input_unregister(dev->remote->dev);
 817         kfree(dev->remote);
 818         dev->remote = NULL;
 819 }
 820
 821 void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
 822 {
 823         struct i2c_board_info info;
 824
 825         struct i2c_msg msg_msi = {
 826                 .addr = 0x50,
 827                 .flags = I2C_M_RD,
 828                 .len = 0,
 829                 .buf = NULL,
 830         };
 831
 832         int rc;
 833
 834         if (disable_ir) {
 835                 dprintk("IR has been disabled, not probing for i2c remote\n");
 836                 return;
 837         }
 838
 839         memset(&info, 0, sizeof(struct i2c_board_info));
 840         memset(&dev->init_data, 0, sizeof(dev->init_data));
 841         strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
 842
 843         switch (dev->board) {
 844         case SAA7134_BOARD_PINNACLE_PCTV_110i:
 845         case SAA7134_BOARD_PINNACLE_PCTV_310i:
 846                 dev->init_data.name = "Pinnacle PCTV";
 847                 if (pinnacle_remote == 0) {
 848                         dev->init_data.get_key = get_key_pinnacle_color;
 849                         dev->init_data.ir_codes = &ir_codes_pinnacle_color_table;
 850                         info.addr = 0x47;
 851                 } else {
 852                         dev->init_data.get_key = get_key_pinnacle_grey;
 853                         dev->init_data.ir_codes = &ir_codes_pinnacle_grey_table;
 854                         info.addr = 0x47;
 855                 }
 856                 break;
 857         case SAA7134_BOARD_UPMOST_PURPLE_TV:
 858                 dev->init_data.name = "Purple TV";
 859                 dev->init_data.get_key = get_key_purpletv;
 860                 dev->init_data.ir_codes = &ir_codes_purpletv_table;
 861                 info.addr = 0x7a;
 862                 break;
 863         case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
 864                 dev->init_data.name = "MSI TV@nywhere Plus";
 865                 dev->init_data.get_key = get_key_msi_tvanywhere_plus;
 866                 dev->init_data.ir_codes = &ir_codes_msi_tvanywhere_plus_table;
 867                 info.addr = 0x30;
 868                 /* MSI TV@nywhere Plus controller doesn't seem to
 869                    respond to probes unless we read something from
 870                    an existing device. Weird...
 871                    REVISIT: might no longer be needed */
 872                 rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
 873                 dprintk(KERN_DEBUG "probe 0x%02x @ %s: %s\n",
 874                         msg_msi.addr, dev->i2c_adap.name,
 875                         (1 == rc) ? "yes" : "no");
 876                 break;
 877         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
 878                 dev->init_data.name = "HVR 1110";
 879                 dev->init_data.get_key = get_key_hvr1110;
 880                 dev->init_data.ir_codes = &ir_codes_hauppauge_new_table;
 881                 info.addr = 0x71;
 882                 break;
 883         case SAA7134_BOARD_BEHOLD_607FM_MK3:
 884         case SAA7134_BOARD_BEHOLD_607FM_MK5:
 885         case SAA7134_BOARD_BEHOLD_609FM_MK3:
 886         case SAA7134_BOARD_BEHOLD_609FM_MK5:
 887         case SAA7134_BOARD_BEHOLD_607RDS_MK3:
 888         case SAA7134_BOARD_BEHOLD_607RDS_MK5:
 889         case SAA7134_BOARD_BEHOLD_609RDS_MK3:
 890         case SAA7134_BOARD_BEHOLD_609RDS_MK5:
 891         case SAA7134_BOARD_BEHOLD_M6:
 892         case SAA7134_BOARD_BEHOLD_M63:
 893         case SAA7134_BOARD_BEHOLD_M6_EXTRA:
 894         case SAA7134_BOARD_BEHOLD_H6:
 895         case SAA7134_BOARD_BEHOLD_X7:
 896                 dev->init_data.name = "BeholdTV";
 897                 dev->init_data.get_key = get_key_beholdm6xx;
 898                 dev->init_data.ir_codes = &ir_codes_behold_table;
 899                 dev->init_data.type = IR_TYPE_NEC;
 900                 info.addr = 0x2d;
 901                 break;
 902         case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
 903         case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
 904                 info.addr = 0x40;
 905                 break;
 906         case SAA7134_BOARD_FLYDVB_TRIO:
 907                 dev->init_data.name = "FlyDVB Trio";
 908                 dev->init_data.get_key = get_key_flydvb_trio;
 909                 dev->init_data.ir_codes = &ir_codes_flydvb_table;
 910                 info.addr = 0x0b;
 911                 break;
 912         default:
 913                 dprintk("No I2C IR support for board %x\n", dev->board);
 914                 return;
 915         }
 916
 917         if (dev->init_data.name)
 918                 info.platform_data = &dev->init_data;
 919         i2c_new_device(&dev->i2c_adap, &info);
 920 }
 921
 922 static int saa7134_rc5_irq(struct saa7134_dev *dev)
 923 {
 924         struct card_ir *ir = dev->remote;
 925         struct timeval tv;
 926         u32 gap;
 927         unsigned long current_jiffies, timeout;
 928
 929         /* get time of bit */
 930         current_jiffies = jiffies;
 931         do_gettimeofday(&tv);
 932
 933         /* avoid overflow with gap >1s */
 934         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
 935                 gap = 200000;
 936         } else {
 937                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
 938                     tv.tv_usec - ir->base_time.tv_usec;
 939         }
 940
 941         /* active code => add bit */
 942         if (ir->active) {
 943                 /* only if in the code (otherwise spurious IRQ or timer
 944                    late) */
 945                 if (ir->last_bit < 28) {
 946                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
 947                             ir_rc5_remote_gap;
 948                         ir->code |= 1 << ir->last_bit;
 949                 }
 950                 /* starting new code */
 951         } else {
 952                 ir->active = 1;
 953                 ir->code = 0;
 954                 ir->base_time = tv;
 955                 ir->last_bit = 0;
 956
 957                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
 958                 mod_timer(&ir->timer_end, timeout);
 959         }
 960
 961         return 1;
 962 }
 963
 964
 965 /* On NEC protocol, One has 2.25 ms, and zero has 1.125 ms
 966    The first pulse (start) has 9 + 4.5 ms
 967  */
 968
 969 static void saa7134_nec_timer(unsigned long data)
 970 {
 971         struct saa7134_dev *dev = (struct saa7134_dev *) data;
 972         struct card_ir *ir = dev->remote;
 973
 974         dprintk("Cancel key repeat\n");
 975
 976         ir_input_nokey(ir->dev, &ir->ir);
 977 }
 978
 979 static void nec_task(unsigned long data)
 980 {
 981         struct saa7134_dev *dev = (struct saa7134_dev *) data;
 982         struct card_ir *ir;
 983         struct timeval tv;
 984         int count, pulse, oldpulse, gap;
 985         u32 ircode = 0, not_code = 0;
 986         int ngap = 0;
 987
 988         if (!data) {
 989                 printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
 990                 /* GPIO will be kept disabled */
 991                 return;
 992         }
 993
 994         ir = dev->remote;
 995
 996         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 997         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 998         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 999
1000         oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
1001         pulse = oldpulse;
1002
1003         do_gettimeofday(&tv);
1004         ir->base_time = tv;
1005
1006         /* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
1007            Unfortunately, using IRQ to decode pulse didn't work, since it uses
1008            a pulse train of 38KHz. This means one pulse on each 52 us
1009          */
1010         do {
1011                 /* Wait until the end of pulse/space or 5 ms */
1012                 for (count = 0; count < 500; count++)  {
1013                         udelay(10);
1014                         /* rising SAA7134_GPIO_GPRESCAN reads the status */
1015                         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1016                         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1017                         pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
1018                                 & ir->mask_keydown;
1019                         if (pulse != oldpulse)
1020                                 break;
1021                 }
1022
1023                 do_gettimeofday(&tv);
1024                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
1025                                 tv.tv_usec - ir->base_time.tv_usec;
1026
1027                 if (!pulse) {
1028                         /* Bit 0 has 560 us, while bit 1 has 1120 us.
1029                            Do something only if bit == 1
1030                          */
1031                         if (ngap && (gap > 560 + 280)) {
1032                                 unsigned int shift = ngap - 1;
1033
1034                                 /* Address first, then command */
1035                                 if (shift < 8) {
1036                                         shift += 8;
1037                                         ircode |= 1 << shift;
1038                                 } else if (shift < 16) {
1039                                         not_code |= 1 << shift;
1040                                 } else if (shift < 24) {
1041                                         shift -= 16;
1042                                         ircode |= 1 << shift;
1043                                 } else {
1044                                         shift -= 24;
1045                                         not_code |= 1 << shift;
1046                                 }
1047                         }
1048                         ngap++;
1049                 }
1050
1051
1052                 ir->base_time = tv;
1053
1054                 /* TIMEOUT - Long pulse */
1055                 if (gap >= 5000)
1056                         break;
1057                 oldpulse = pulse;
1058         } while (ngap < 32);
1059
1060         if (ngap == 32) {
1061                 /* FIXME: should check if not_code == ~ircode */
1062                 ir->code = ir_extract_bits(ircode, ir->mask_keycode);
1063
1064                 dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
1065                          ir->code, ircode, not_code);
1066
1067                 ir_input_keydown(ir->dev, &ir->ir, ir->code);
1068         } else
1069                 dprintk("Repeat last key\n");
1070
1071         /* Keep repeating the last key */
1072         mod_timer(&ir->timer_keyup, jiffies + msecs_to_jiffies(150));
1073
1074         saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
1075 }
1076
1077 static int saa7134_nec_irq(struct saa7134_dev *dev)
1078 {
1079         struct card_ir *ir = dev->remote;
1080
1081         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
1082         tasklet_schedule(&ir->tlet);
1083
1084         return 1;
1085 }