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 #include <linux/slab.h>
  27
  28 #include "saa7134-reg.h"
  29 #include "saa7134.h"
  30
  31 static unsigned int disable_ir;
  32 module_param(disable_ir, int, 0444);
  33 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
  34
  35 static unsigned int ir_debug;
  36 module_param(ir_debug, int, 0644);
  37 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
  38
  39 static int pinnacle_remote;
  40 module_param(pinnacle_remote, int, 0644);    /* Choose Pinnacle PCTV remote */
  41 MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
  42
  43 static int ir_rc5_remote_gap = 885;
  44 module_param(ir_rc5_remote_gap, int, 0644);
  45 static int ir_rc5_key_timeout = 115;
  46 module_param(ir_rc5_key_timeout, int, 0644);
  47
  48 static int repeat_delay = 500;
  49 module_param(repeat_delay, int, 0644);
  50 MODULE_PARM_DESC(repeat_delay, "delay before key repeat started");
  51 static int repeat_period = 33;
  52 module_param(repeat_period, int, 0644);
  53 MODULE_PARM_DESC(repeat_period, "repeat period between "
  54     "keypresses when key is down");
  55
  56 static unsigned int disable_other_ir;
  57 module_param(disable_other_ir, int, 0644);
  58 MODULE_PARM_DESC(disable_other_ir, "disable full codes of "
  59     "alternative remotes from other manufacturers");
  60
  61 #define dprintk(fmt, arg...)    if (ir_debug) \
  62         printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
  63 #define i2cdprintk(fmt, arg...)    if (ir_debug) \
  64         printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg)
  65
  66 /* Helper functions for RC5 and NEC decoding at GPIO16 or GPIO18 */
  67 static int saa7134_rc5_irq(struct saa7134_dev *dev);
  68 static int saa7134_nec_irq(struct saa7134_dev *dev);
  69 static void nec_task(unsigned long data);
  70 static void saa7134_nec_timer(unsigned long data);
  71
  72 /* -------------------- GPIO generic keycode builder -------------------- */
  73
  74 static int build_key(struct saa7134_dev *dev)
  75 {
  76         struct card_ir *ir = dev->remote;
  77         u32 gpio, data;
  78
  79         /* here comes the additional handshake steps for some cards */
  80         switch (dev->board) {
  81         case SAA7134_BOARD_GOTVIEW_7135:
  82                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
  83                 saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
  84                 break;
  85         }
  86         /* rising SAA7134_GPIO_GPRESCAN reads the status */
  87         saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  88         saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  89
  90         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
  91         if (ir->polling) {
  92                 if (ir->last_gpio == gpio)
  93                         return 0;
  94                 ir->last_gpio = gpio;
  95         }
  96
  97         data = ir_extract_bits(gpio, ir->mask_keycode);
  98         dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
  99                 gpio, ir->mask_keycode, data);
 100
 101         switch (dev->board) {
 102         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
 103                 if (data == ir->mask_keycode)
 104                         ir_input_nokey(ir->dev, &ir->ir);
 105                 else
 106                         ir_input_keydown(ir->dev, &ir->ir, data);
 107                 return 0;
 108         }
 109
 110         if (ir->polling) {
 111                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 112                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 113                         ir_input_keydown(ir->dev, &ir->ir, data);
 114                 } else {
 115                         ir_input_nokey(ir->dev, &ir->ir);
 116                 }
 117         }
 118         else {  /* IRQ driven mode - handle key press and release in one go */
 119                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 120                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 121                         ir_input_keydown(ir->dev, &ir->ir, data);
 122                         ir_input_nokey(ir->dev, &ir->ir);
 123                 }
 124         }
 125
 126         return 0;
 127 }
 128
 129 /* --------------------- Chip specific I2C key builders ----------------- */
 130
 131 static int get_key_flydvb_trio(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 132 {
 133         int gpio;
 134         int attempt = 0;
 135         unsigned char b;
 136
 137         /* We need this to access GPI Used by the saa_readl macro. */
 138         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 139
 140         if (dev == NULL) {
 141                 dprintk("get_key_flydvb_trio: "
 142                          "gir->c->adapter->algo_data is NULL!\n");
 143                 return -EIO;
 144         }
 145
 146         /* rising SAA7134_GPIGPRESCAN reads the status */
 147         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 148         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 149
 150         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 151
 152         if (0x40000 & ~gpio)
 153                 return 0; /* No button press */
 154
 155         /* No button press - only before first key pressed */
 156         if (b == 0xFF)
 157                 return 0;
 158
 159         /* poll IR chip */
 160         /* weak up the IR chip */
 161         b = 0;
 162
 163         while (1 != i2c_master_send(ir->c, &b, 1)) {
 164                 if ((attempt++) < 10) {
 165                         /*
 166                          * wait a bit for next attempt -
 167                          * I don't know how make it better
 168                          */
 169                         msleep(10);
 170                         continue;
 171                 }
 172                 i2cdprintk("send wake up byte to pic16C505 (IR chip)"
 173                            "failed %dx\n", attempt);
 174                 return -EIO;
 175         }
 176         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 177                 i2cdprintk("read error\n");
 178                 return -EIO;
 179         }
 180
 181         *ir_key = b;
 182         *ir_raw = b;
 183         return 1;
 184 }
 185
 186 static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key,
 187                                        u32 *ir_raw)
 188 {
 189         unsigned char b;
 190         int gpio;
 191
 192         /* <dev> is needed to access GPIO. Used by the saa_readl macro. */
 193         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 194         if (dev == NULL) {
 195                 dprintk("get_key_msi_tvanywhere_plus: "
 196                         "gir->c->adapter->algo_data is NULL!\n");
 197                 return -EIO;
 198         }
 199
 200         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 201
 202         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 203         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 204
 205         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 206
 207         /* GPIO&0x40 is pulsed low when a button is pressed. Don't do
 208            I2C receive if gpio&0x40 is not low. */
 209
 210         if (gpio & 0x40)
 211                 return 0;       /* No button press */
 212
 213         /* GPIO says there is a button press. Get it. */
 214
 215         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 216                 i2cdprintk("read error\n");
 217                 return -EIO;
 218         }
 219
 220         /* No button press */
 221
 222         if (b == 0xff)
 223                 return 0;
 224
 225         /* Button pressed */
 226
 227         dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
 228         *ir_key = b;
 229         *ir_raw = b;
 230         return 1;
 231 }
 232
 233 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 234 {
 235         unsigned char b;
 236
 237         /* poll IR chip */
 238         if (1 != i2c_master_recv(ir->c, &b, 1)) {
 239                 i2cdprintk("read error\n");
 240                 return -EIO;
 241         }
 242
 243         /* no button press */
 244         if (b==0)
 245                 return 0;
 246
 247         /* repeating */
 248         if (b & 0x80)
 249                 return 1;
 250
 251         *ir_key = b;
 252         *ir_raw = b;
 253         return 1;
 254 }
 255
 256 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 257 {
 258         unsigned char buf[5], cod4, code3, code4;
 259
 260         /* poll IR chip */
 261         if (5 != i2c_master_recv(ir->c, buf, 5))
 262                 return -EIO;
 263
 264         cod4    = buf[4];
 265         code4   = (cod4 >> 2);
 266         code3   = buf[3];
 267         if (code3 == 0)
 268                 /* no key pressed */
 269                 return 0;
 270
 271         /* return key */
 272         *ir_key = code4;
 273         *ir_raw = code4;
 274         return 1;
 275 }
 276
 277
 278 static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 279 {
 280         unsigned char data[12];
 281         u32 gpio;
 282
 283         struct saa7134_dev *dev = ir->c->adapter->algo_data;
 284
 285         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 286         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 287         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 288
 289         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 290
 291         if (0x400000 & ~gpio)
 292                 return 0; /* No button press */
 293
 294         ir->c->addr = 0x5a >> 1;
 295
 296         if (12 != i2c_master_recv(ir->c, data, 12)) {
 297                 i2cdprintk("read error\n");
 298                 return -EIO;
 299         }
 300         /* IR of this card normally decode signals NEC-standard from
 301          * - Sven IHOO MT 5.1R remote. xxyye718
 302          * - Sven DVD HD-10xx remote. xxyyf708
 303          * - BBK ...
 304          * - mayby others
 305          * So, skip not our, if disable full codes mode.
 306          */
 307         if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
 308                 return 0;
 309
 310         /* Wrong data decode fix */
 311         if (data[9] != (unsigned char)(~data[8]))
 312                 return 0;
 313
 314         *ir_key = data[9];
 315         *ir_raw = data[9];
 316
 317         return 1;
 318 }
 319
 320 /* Common (grey or coloured) pinnacle PCTV remote handling
 321  *
 322  */
 323 static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
 324                             int parity_offset, int marker, int code_modulo)
 325 {
 326         unsigned char b[4];
 327         unsigned int start = 0,parity = 0,code = 0;
 328
 329         /* poll IR chip */
 330         if (4 != i2c_master_recv(ir->c, b, 4)) {
 331                 i2cdprintk("read error\n");
 332                 return -EIO;
 333         }
 334
 335         for (start = 0; start < ARRAY_SIZE(b); start++) {
 336                 if (b[start] == marker) {
 337                         code=b[(start+parity_offset + 1) % 4];
 338                         parity=b[(start+parity_offset) % 4];
 339                 }
 340         }
 341
 342         /* Empty Request */
 343         if (parity == 0)
 344                 return 0;
 345
 346         /* Repeating... */
 347         if (ir->old == parity)
 348                 return 0;
 349
 350         ir->old = parity;
 351
 352         /* drop special codes when a key is held down a long time for the grey controller
 353            In this case, the second bit of the code is asserted */
 354         if (marker == 0xfe && (code & 0x40))
 355                 return 0;
 356
 357         code %= code_modulo;
 358
 359         *ir_raw = code;
 360         *ir_key = code;
 361
 362         i2cdprintk("Pinnacle PCTV key %02x\n", code);
 363
 364         return 1;
 365 }
 366
 367 /* The grey pinnacle PCTV remote
 368  *
 369  *  There are one issue with this remote:
 370  *   - I2c packet does not change when the same key is pressed quickly. The workaround
 371  *     is to hold down each key for about half a second, so that another code is generated
 372  *     in the i2c packet, and the function can distinguish key presses.
 373  *
 374  * Sylvain Pasche <sylvain.pasche@gmail.com>
 375  */
 376 static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 377 {
 378
 379         return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
 380 }
 381
 382
 383 /* The new pinnacle PCTV remote (with the colored buttons)
 384  *
 385  * Ricardo Cerqueira <v4l@cerqueira.org>
 386  */
 387 static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 388 {
 389         /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
 390          *
 391          * this is the only value that results in 42 unique
 392          * codes < 128
 393          */
 394
 395         return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
 396 }
 397
 398 void saa7134_input_irq(struct saa7134_dev *dev)
 399 {
 400         struct card_ir *ir = dev->remote;
 401
 402         if (ir->nec_gpio) {
 403                 saa7134_nec_irq(dev);
 404         } else if (!ir->polling && !ir->rc5_gpio) {
 405                 build_key(dev);
 406         } else if (ir->rc5_gpio) {
 407                 saa7134_rc5_irq(dev);
 408         }
 409 }
 410
 411 static void saa7134_input_timer(unsigned long data)
 412 {
 413         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 414         struct card_ir *ir = dev->remote;
 415
 416         build_key(dev);
 417         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
 418 }
 419
 420 void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
 421 {
 422         if (ir->polling) {
 423                 setup_timer(&ir->timer, saa7134_input_timer,
 424                             (unsigned long)dev);
 425                 ir->timer.expires  = jiffies + HZ;
 426                 add_timer(&ir->timer);
 427         } else if (ir->rc5_gpio) {
 428                 /* set timer_end for code completion */
 429                 init_timer(&ir->timer_end);
 430                 ir->timer_end.function = ir_rc5_timer_end;
 431                 ir->timer_end.data = (unsigned long)ir;
 432                 init_timer(&ir->timer_keyup);
 433                 ir->timer_keyup.function = ir_rc5_timer_keyup;
 434                 ir->timer_keyup.data = (unsigned long)ir;
 435                 ir->shift_by = 2;
 436                 ir->start = 0x2;
 437                 ir->addr = 0x17;
 438                 ir->rc5_key_timeout = ir_rc5_key_timeout;
 439                 ir->rc5_remote_gap = ir_rc5_remote_gap;
 440         } else if (ir->nec_gpio) {
 441                 setup_timer(&ir->timer_keyup, saa7134_nec_timer,
 442                             (unsigned long)dev);
 443                 tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
 444         }
 445 }
 446
 447 void saa7134_ir_stop(struct saa7134_dev *dev)
 448 {
 449         if (dev->remote->polling)
 450                 del_timer_sync(&dev->remote->timer);
 451 }
 452
 453 int saa7134_input_init1(struct saa7134_dev *dev)
 454 {
 455         struct card_ir *ir;
 456         struct input_dev *input_dev;
 457         struct ir_scancode_table *ir_codes = NULL;
 458         u32 mask_keycode = 0;
 459         u32 mask_keydown = 0;
 460         u32 mask_keyup   = 0;
 461         int polling      = 0;
 462         int rc5_gpio     = 0;
 463         int nec_gpio     = 0;
 464         u64 ir_type = IR_TYPE_OTHER;
 465         int err;
 466
 467         if (dev->has_remote != SAA7134_REMOTE_GPIO)
 468                 return -ENODEV;
 469         if (disable_ir)
 470                 return -ENODEV;
 471
 472         /* detect & configure */
 473         switch (dev->board) {
 474         case SAA7134_BOARD_FLYVIDEO2000:
 475         case SAA7134_BOARD_FLYVIDEO3000:
 476         case SAA7134_BOARD_FLYTVPLATINUM_FM:
 477         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
 478         case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
 479                 ir_codes     = &ir_codes_flyvideo_table;
 480                 mask_keycode = 0xEC00000;
 481                 mask_keydown = 0x0040000;
 482                 break;
 483         case SAA7134_BOARD_CINERGY400:
 484         case SAA7134_BOARD_CINERGY600:
 485         case SAA7134_BOARD_CINERGY600_MK3:
 486                 ir_codes     = &ir_codes_cinergy_table;
 487                 mask_keycode = 0x00003f;
 488                 mask_keyup   = 0x040000;
 489                 break;
 490         case SAA7134_BOARD_ECS_TVP3XP:
 491         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
 492                 ir_codes     = &ir_codes_eztv_table;
 493                 mask_keycode = 0x00017c;
 494                 mask_keyup   = 0x000002;
 495                 polling      = 50; // ms
 496                 break;
 497         case SAA7134_BOARD_KWORLD_XPERT:
 498         case SAA7134_BOARD_AVACSSMARTTV:
 499                 ir_codes     = &ir_codes_pixelview_table;
 500                 mask_keycode = 0x00001F;
 501                 mask_keyup   = 0x000020;
 502                 polling      = 50; // ms
 503                 break;
 504         case SAA7134_BOARD_MD2819:
 505         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
 506         case SAA7134_BOARD_AVERMEDIA_305:
 507         case SAA7134_BOARD_AVERMEDIA_307:
 508         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
 509         case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
 510         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
 511         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
 512         case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
 513         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
 514         case SAA7134_BOARD_AVERMEDIA_M102:
 515         case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
 516                 ir_codes     = &ir_codes_avermedia_table;
 517                 mask_keycode = 0x0007C8;
 518                 mask_keydown = 0x000010;
 519                 polling      = 50; // ms
 520                 /* Set GPIO pin2 to high to enable the IR controller */
 521                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
 522                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
 523                 break;
 524         case SAA7134_BOARD_AVERMEDIA_M135A:
 525                 ir_codes     = &ir_codes_avermedia_m135a_table;
 526                 mask_keydown = 0x0040000;
 527                 mask_keycode = 0x00013f;
 528                 nec_gpio     = 1;
 529                 break;
 530         case SAA7134_BOARD_AVERMEDIA_777:
 531         case SAA7134_BOARD_AVERMEDIA_A16AR:
 532                 ir_codes     = &ir_codes_avermedia_table;
 533                 mask_keycode = 0x02F200;
 534                 mask_keydown = 0x000400;
 535                 polling      = 50; // ms
 536                 /* Without this we won't receive key up events */
 537                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 538                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 539                 break;
 540         case SAA7134_BOARD_AVERMEDIA_A16D:
 541                 ir_codes     = &ir_codes_avermedia_a16d_table;
 542                 mask_keycode = 0x02F200;
 543                 mask_keydown = 0x000400;
 544                 polling      = 50; /* ms */
 545                 /* Without this we won't receive key up events */
 546                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 547                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 548                 break;
 549         case SAA7134_BOARD_KWORLD_TERMINATOR:
 550                 ir_codes     = &ir_codes_pixelview_table;
 551                 mask_keycode = 0x00001f;
 552                 mask_keyup   = 0x000060;
 553                 polling      = 50; // ms
 554                 break;
 555         case SAA7134_BOARD_MANLI_MTV001:
 556         case SAA7134_BOARD_MANLI_MTV002:
 557                 ir_codes     = &ir_codes_manli_table;
 558                 mask_keycode = 0x001f00;
 559                 mask_keyup   = 0x004000;
 560                 polling      = 50; /* ms */
 561                 break;
 562         case SAA7134_BOARD_BEHOLD_409FM:
 563         case SAA7134_BOARD_BEHOLD_401:
 564         case SAA7134_BOARD_BEHOLD_403:
 565         case SAA7134_BOARD_BEHOLD_403FM:
 566         case SAA7134_BOARD_BEHOLD_405:
 567         case SAA7134_BOARD_BEHOLD_405FM:
 568         case SAA7134_BOARD_BEHOLD_407:
 569         case SAA7134_BOARD_BEHOLD_407FM:
 570         case SAA7134_BOARD_BEHOLD_409:
 571         case SAA7134_BOARD_BEHOLD_505FM:
 572         case SAA7134_BOARD_BEHOLD_505RDS_MK5:
 573         case SAA7134_BOARD_BEHOLD_505RDS_MK3:
 574         case SAA7134_BOARD_BEHOLD_507_9FM:
 575         case SAA7134_BOARD_BEHOLD_507RDS_MK3:
 576         case SAA7134_BOARD_BEHOLD_507RDS_MK5:
 577                 ir_codes     = &ir_codes_manli_table;
 578                 mask_keycode = 0x003f00;
 579                 mask_keyup   = 0x004000;
 580                 polling      = 50; /* ms */
 581                 break;
 582         case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
 583                 ir_codes     = &ir_codes_behold_columbus_table;
 584                 mask_keycode = 0x003f00;
 585                 mask_keyup   = 0x004000;
 586                 polling      = 50; // ms
 587                 break;
 588         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
 589                 ir_codes     = &ir_codes_pctv_sedna_table;
 590                 mask_keycode = 0x001f00;
 591                 mask_keyup   = 0x004000;
 592                 polling      = 50; // ms
 593                 break;
 594         case SAA7134_BOARD_GOTVIEW_7135:
 595                 ir_codes     = &ir_codes_gotview7135_table;
 596                 mask_keycode = 0x0003CC;
 597                 mask_keydown = 0x000010;
 598                 polling      = 5; /* ms */
 599                 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
 600                 break;
 601         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
 602         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
 603         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
 604                 ir_codes     = &ir_codes_videomate_tv_pvr_table;
 605                 mask_keycode = 0x00003F;
 606                 mask_keyup   = 0x400000;
 607                 polling      = 50; // ms
 608                 break;
 609         case SAA7134_BOARD_PROTEUS_2309:
 610                 ir_codes     = &ir_codes_proteus_2309_table;
 611                 mask_keycode = 0x00007F;
 612                 mask_keyup   = 0x000080;
 613                 polling      = 50; // ms
 614                 break;
 615         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
 616         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
 617                 ir_codes     = &ir_codes_videomate_tv_pvr_table;
 618                 mask_keycode = 0x003F00;
 619                 mask_keyup   = 0x040000;
 620                 break;
 621         case SAA7134_BOARD_FLYDVBS_LR300:
 622         case SAA7134_BOARD_FLYDVBT_LR301:
 623         case SAA7134_BOARD_FLYDVBTDUO:
 624                 ir_codes     = &ir_codes_flydvb_table;
 625                 mask_keycode = 0x0001F00;
 626                 mask_keydown = 0x0040000;
 627                 break;
 628         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
 629         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
 630         case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
 631                 ir_codes     = &ir_codes_asus_pc39_table;
 632                 mask_keydown = 0x0040000;
 633                 rc5_gpio = 1;
 634                 break;
 635         case SAA7134_BOARD_ENCORE_ENLTV:
 636         case SAA7134_BOARD_ENCORE_ENLTV_FM:
 637                 ir_codes     = &ir_codes_encore_enltv_table;
 638                 mask_keycode = 0x00007f;
 639                 mask_keyup   = 0x040000;
 640                 polling      = 50; // ms
 641                 break;
 642         case SAA7134_BOARD_ENCORE_ENLTV_FM53:
 643                 ir_codes     = &ir_codes_encore_enltv_fm53_table;
 644                 mask_keydown = 0x0040000;
 645                 mask_keycode = 0x00007f;
 646                 nec_gpio = 1;
 647                 break;
 648         case SAA7134_BOARD_10MOONSTVMASTER3:
 649                 ir_codes     = &ir_codes_encore_enltv_table;
 650                 mask_keycode = 0x5f80000;
 651                 mask_keyup   = 0x8000000;
 652                 polling      = 50; //ms
 653                 break;
 654         case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
 655                 ir_codes     = &ir_codes_genius_tvgo_a11mce_table;
 656                 mask_keycode = 0xff;
 657                 mask_keydown = 0xf00000;
 658                 polling = 50; /* ms */
 659                 break;
 660         case SAA7134_BOARD_REAL_ANGEL_220:
 661                 ir_codes     = &ir_codes_real_audio_220_32_keys_table;
 662                 mask_keycode = 0x3f00;
 663                 mask_keyup   = 0x4000;
 664                 polling = 50; /* ms */
 665                 break;
 666         case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
 667                 ir_codes     = &ir_codes_kworld_plus_tv_analog_table;
 668                 mask_keycode = 0x7f;
 669                 polling = 40; /* ms */
 670                 break;
 671         case SAA7134_BOARD_VIDEOMATE_S350:
 672                 ir_codes     = &ir_codes_videomate_s350_table;
 673                 mask_keycode = 0x003f00;
 674                 mask_keydown = 0x040000;
 675                 break;
 676         case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
 677                 ir_codes     = &ir_codes_winfast_table;
 678                 mask_keycode = 0x5f00;
 679                 mask_keyup   = 0x020000;
 680                 polling      = 50; /* ms */
 681                 break;
 682         break;
 683         }
 684         if (NULL == ir_codes) {
 685                 printk("%s: Oops: IR config error [card=%d]\n",
 686                        dev->name, dev->board);
 687                 return -ENODEV;
 688         }
 689
 690         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 691         input_dev = input_allocate_device();
 692         if (!ir || !input_dev) {
 693                 err = -ENOMEM;
 694                 goto err_out_free;
 695         }
 696
 697         ir->dev = input_dev;
 698
 699         /* init hardware-specific stuff */
 700         ir->mask_keycode = mask_keycode;
 701         ir->mask_keydown = mask_keydown;
 702         ir->mask_keyup   = mask_keyup;
 703         ir->polling      = polling;
 704         ir->rc5_gpio     = rc5_gpio;
 705         ir->nec_gpio     = nec_gpio;
 706
 707         /* init input device */
 708         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
 709                  saa7134_boards[dev->board].name);
 710         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
 711                  pci_name(dev->pci));
 712
 713         err = ir_input_init(input_dev, &ir->ir, ir_type);
 714         if (err < 0)
 715                 goto err_out_free;
 716
 717         input_dev->name = ir->name;
 718         input_dev->phys = ir->phys;
 719         input_dev->id.bustype = BUS_PCI;
 720         input_dev->id.version = 1;
 721         if (dev->pci->subsystem_vendor) {
 722                 input_dev->id.vendor  = dev->pci->subsystem_vendor;
 723                 input_dev->id.product = dev->pci->subsystem_device;
 724         } else {
 725                 input_dev->id.vendor  = dev->pci->vendor;
 726                 input_dev->id.product = dev->pci->device;
 727         }
 728         input_dev->dev.parent = &dev->pci->dev;
 729
 730         dev->remote = ir;
 731         saa7134_ir_start(dev, ir);
 732
 733         err = ir_input_register(ir->dev, ir_codes, NULL);
 734         if (err)
 735                 goto err_out_stop;
 736
 737         /* the remote isn't as bouncy as a keyboard */
 738         ir->dev->rep[REP_DELAY] = repeat_delay;
 739         ir->dev->rep[REP_PERIOD] = repeat_period;
 740
 741         return 0;
 742
 743  err_out_stop:
 744         saa7134_ir_stop(dev);
 745         dev->remote = NULL;
 746  err_out_free:
 747         kfree(ir);
 748         return err;
 749 }
 750
 751 void saa7134_input_fini(struct saa7134_dev *dev)
 752 {
 753         if (NULL == dev->remote)
 754                 return;
 755
 756         saa7134_ir_stop(dev);
 757         ir_input_unregister(dev->remote->dev);
 758         kfree(dev->remote);
 759         dev->remote = NULL;
 760 }
 761
 762 void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
 763 {
 764         struct i2c_board_info info;
 765
 766         struct i2c_msg msg_msi = {
 767                 .addr = 0x50,
 768                 .flags = I2C_M_RD,
 769                 .len = 0,
 770                 .buf = NULL,
 771         };
 772
 773         int rc;
 774
 775         if (disable_ir) {
 776                 dprintk("IR has been disabled, not probing for i2c remote\n");
 777                 return;
 778         }
 779
 780         memset(&info, 0, sizeof(struct i2c_board_info));
 781         memset(&dev->init_data, 0, sizeof(dev->init_data));
 782         strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
 783
 784         switch (dev->board) {
 785         case SAA7134_BOARD_PINNACLE_PCTV_110i:
 786         case SAA7134_BOARD_PINNACLE_PCTV_310i:
 787                 dev->init_data.name = "Pinnacle PCTV";
 788                 if (pinnacle_remote == 0) {
 789                         dev->init_data.get_key = get_key_pinnacle_color;
 790                         dev->init_data.ir_codes = &ir_codes_pinnacle_color_table;
 791                         info.addr = 0x47;
 792                 } else {
 793                         dev->init_data.get_key = get_key_pinnacle_grey;
 794                         dev->init_data.ir_codes = &ir_codes_pinnacle_grey_table;
 795                         info.addr = 0x47;
 796                 }
 797                 break;
 798         case SAA7134_BOARD_UPMOST_PURPLE_TV:
 799                 dev->init_data.name = "Purple TV";
 800                 dev->init_data.get_key = get_key_purpletv;
 801                 dev->init_data.ir_codes = &ir_codes_purpletv_table;
 802                 info.addr = 0x7a;
 803                 break;
 804         case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
 805                 dev->init_data.name = "MSI TV@nywhere Plus";
 806                 dev->init_data.get_key = get_key_msi_tvanywhere_plus;
 807                 dev->init_data.ir_codes = &ir_codes_msi_tvanywhere_plus_table;
 808                 info.addr = 0x30;
 809                 /* MSI TV@nywhere Plus controller doesn't seem to
 810                    respond to probes unless we read something from
 811                    an existing device. Weird...
 812                    REVISIT: might no longer be needed */
 813                 rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
 814                 dprintk(KERN_DEBUG "probe 0x%02x @ %s: %s\n",
 815                         msg_msi.addr, dev->i2c_adap.name,
 816                         (1 == rc) ? "yes" : "no");
 817                 break;
 818         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
 819                 dev->init_data.name = "HVR 1110";
 820                 dev->init_data.get_key = get_key_hvr1110;
 821                 dev->init_data.ir_codes = &ir_codes_hauppauge_new_table;
 822                 info.addr = 0x71;
 823                 break;
 824         case SAA7134_BOARD_BEHOLD_607FM_MK3:
 825         case SAA7134_BOARD_BEHOLD_607FM_MK5:
 826         case SAA7134_BOARD_BEHOLD_609FM_MK3:
 827         case SAA7134_BOARD_BEHOLD_609FM_MK5:
 828         case SAA7134_BOARD_BEHOLD_607RDS_MK3:
 829         case SAA7134_BOARD_BEHOLD_607RDS_MK5:
 830         case SAA7134_BOARD_BEHOLD_609RDS_MK3:
 831         case SAA7134_BOARD_BEHOLD_609RDS_MK5:
 832         case SAA7134_BOARD_BEHOLD_M6:
 833         case SAA7134_BOARD_BEHOLD_M63:
 834         case SAA7134_BOARD_BEHOLD_M6_EXTRA:
 835         case SAA7134_BOARD_BEHOLD_H6:
 836         case SAA7134_BOARD_BEHOLD_X7:
 837                 dev->init_data.name = "BeholdTV";
 838                 dev->init_data.get_key = get_key_beholdm6xx;
 839                 dev->init_data.ir_codes = &ir_codes_behold_table;
 840                 info.addr = 0x2d;
 841                 break;
 842         case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
 843         case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
 844                 info.addr = 0x40;
 845                 break;
 846         case SAA7134_BOARD_FLYDVB_TRIO:
 847                 dev->init_data.name = "FlyDVB Trio";
 848                 dev->init_data.get_key = get_key_flydvb_trio;
 849                 dev->init_data.ir_codes = &ir_codes_flydvb_table;
 850                 info.addr = 0x0b;
 851                 break;
 852         default:
 853                 dprintk("No I2C IR support for board %x\n", dev->board);
 854                 return;
 855         }
 856
 857         if (dev->init_data.name)
 858                 info.platform_data = &dev->init_data;
 859         i2c_new_device(&dev->i2c_adap, &info);
 860 }
 861
 862 static int saa7134_rc5_irq(struct saa7134_dev *dev)
 863 {
 864         struct card_ir *ir = dev->remote;
 865         struct timeval tv;
 866         u32 gap;
 867         unsigned long current_jiffies, timeout;
 868
 869         /* get time of bit */
 870         current_jiffies = jiffies;
 871         do_gettimeofday(&tv);
 872
 873         /* avoid overflow with gap >1s */
 874         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
 875                 gap = 200000;
 876         } else {
 877                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
 878                     tv.tv_usec - ir->base_time.tv_usec;
 879         }
 880
 881         /* active code => add bit */
 882         if (ir->active) {
 883                 /* only if in the code (otherwise spurious IRQ or timer
 884                    late) */
 885                 if (ir->last_bit < 28) {
 886                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
 887                             ir_rc5_remote_gap;
 888                         ir->code |= 1 << ir->last_bit;
 889                 }
 890                 /* starting new code */
 891         } else {
 892                 ir->active = 1;
 893                 ir->code = 0;
 894                 ir->base_time = tv;
 895                 ir->last_bit = 0;
 896
 897                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
 898                 mod_timer(&ir->timer_end, timeout);
 899         }
 900
 901         return 1;
 902 }
 903
 904
 905 /* On NEC protocol, One has 2.25 ms, and zero has 1.125 ms
 906    The first pulse (start) has 9 + 4.5 ms
 907  */
 908
 909 static void saa7134_nec_timer(unsigned long data)
 910 {
 911         struct saa7134_dev *dev = (struct saa7134_dev *) data;
 912         struct card_ir *ir = dev->remote;
 913
 914         dprintk("Cancel key repeat\n");
 915
 916         ir_input_nokey(ir->dev, &ir->ir);
 917 }
 918
 919 static void nec_task(unsigned long data)
 920 {
 921         struct saa7134_dev *dev = (struct saa7134_dev *) data;
 922         struct card_ir *ir;
 923         struct timeval tv;
 924         int count, pulse, oldpulse, gap;
 925         u32 ircode = 0, not_code = 0;
 926         int ngap = 0;
 927
 928         if (!data) {
 929                 printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
 930                 /* GPIO will be kept disabled */
 931                 return;
 932         }
 933
 934         ir = dev->remote;
 935
 936         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 937         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 938         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 939
 940         oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
 941         pulse = oldpulse;
 942
 943         do_gettimeofday(&tv);
 944         ir->base_time = tv;
 945
 946         /* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
 947            Unfortunately, using IRQ to decode pulse didn't work, since it uses
 948            a pulse train of 38KHz. This means one pulse on each 52 us
 949          */
 950         do {
 951                 /* Wait until the end of pulse/space or 5 ms */
 952                 for (count = 0; count < 500; count++)  {
 953                         udelay(10);
 954                         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 955                         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 956                         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 957                         pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
 958                                 & ir->mask_keydown;
 959                         if (pulse != oldpulse)
 960                                 break;
 961                 }
 962
 963                 do_gettimeofday(&tv);
 964                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
 965                                 tv.tv_usec - ir->base_time.tv_usec;
 966
 967                 if (!pulse) {
 968                         /* Bit 0 has 560 us, while bit 1 has 1120 us.
 969                            Do something only if bit == 1
 970                          */
 971                         if (ngap && (gap > 560 + 280)) {
 972                                 unsigned int shift = ngap - 1;
 973
 974                                 /* Address first, then command */
 975                                 if (shift < 8) {
 976                                         shift += 8;
 977                                         ircode |= 1 << shift;
 978                                 } else if (shift < 16) {
 979                                         not_code |= 1 << shift;
 980                                 } else if (shift < 24) {
 981                                         shift -= 16;
 982                                         ircode |= 1 << shift;
 983                                 } else {
 984                                         shift -= 24;
 985                                         not_code |= 1 << shift;
 986                                 }
 987                         }
 988                         ngap++;
 989                 }
 990
 991
 992                 ir->base_time = tv;
 993
 994                 /* TIMEOUT - Long pulse */
 995                 if (gap >= 5000)
 996                         break;
 997                 oldpulse = pulse;
 998         } while (ngap < 32);
 999
1000         if (ngap == 32) {
1001                 /* FIXME: should check if not_code == ~ircode */
1002                 ir->code = ir_extract_bits(ircode, ir->mask_keycode);
1003
1004                 dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
1005                          ir->code, ircode, not_code);
1006
1007                 ir_input_keydown(ir->dev, &ir->ir, ir->code);
1008         } else
1009                 dprintk("Repeat last key\n");
1010
1011         /* Keep repeating the last key */
1012         mod_timer(&ir->timer_keyup, jiffies + msecs_to_jiffies(150));
1013
1014         saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
1015 }
1016
1017 static int saa7134_nec_irq(struct saa7134_dev *dev)
1018 {
1019         struct card_ir *ir = dev->remote;
1020
1021         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
1022         tasklet_schedule(&ir->tlet);
1023
1024         return 1;
1025 }