drivers/media/video/cx88/cx88-input.c

   1 /*
   2  *
   3  * Device driver for GPIO attached remote control interfaces
   4  * on Conexant 2388x based TV/DVB cards.
   5  *
   6  * Copyright (c) 2003 Pavel Machek
   7  * Copyright (c) 2004 Gerd Knorr
   8  * Copyright (c) 2004, 2005 Chris Pascoe
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  23  */
  24
  25 #include <linux/init.h>
  26 #include <linux/delay.h>
  27 #include <linux/input.h>
  28 #include <linux/pci.h>
  29 #include <linux/module.h>
  30 #include <linux/moduleparam.h>
  31
  32 #include "cx88.h"
  33 #include <media/ir-common.h>
  34
  35 /* ---------------------------------------------------------------------- */
  36
  37 /* DigitalNow DNTV Live DVB-T Remote */
  38 static IR_KEYTAB_TYPE ir_codes_dntv_live_dvb_t[IR_KEYTAB_SIZE] = {
  39         [0x00] = KEY_ESC,               /* 'go up a level?' */
  40         /* Keys 0 to 9 */
  41         [0x0a] = KEY_KP0,
  42         [0x01] = KEY_KP1,
  43         [0x02] = KEY_KP2,
  44         [0x03] = KEY_KP3,
  45         [0x04] = KEY_KP4,
  46         [0x05] = KEY_KP5,
  47         [0x06] = KEY_KP6,
  48         [0x07] = KEY_KP7,
  49         [0x08] = KEY_KP8,
  50         [0x09] = KEY_KP9,
  51
  52         [0x0b] = KEY_TUNER,             /* tv/fm */
  53         [0x0c] = KEY_SEARCH,            /* scan */
  54         [0x0d] = KEY_STOP,
  55         [0x0e] = KEY_PAUSE,
  56         [0x0f] = KEY_LIST,              /* source */
  57
  58         [0x10] = KEY_MUTE,
  59         [0x11] = KEY_REWIND,            /* backward << */
  60         [0x12] = KEY_POWER,
  61         [0x13] = KEY_S,                 /* snap */
  62         [0x14] = KEY_AUDIO,             /* stereo */
  63         [0x15] = KEY_CLEAR,             /* reset */
  64         [0x16] = KEY_PLAY,
  65         [0x17] = KEY_ENTER,
  66         [0x18] = KEY_ZOOM,              /* full screen */
  67         [0x19] = KEY_FASTFORWARD,       /* forward >> */
  68         [0x1a] = KEY_CHANNELUP,
  69         [0x1b] = KEY_VOLUMEUP,
  70         [0x1c] = KEY_INFO,              /* preview */
  71         [0x1d] = KEY_RECORD,            /* record */
  72         [0x1e] = KEY_CHANNELDOWN,
  73         [0x1f] = KEY_VOLUMEDOWN,
  74 };
  75
  76 /* ---------------------------------------------------------------------- */
  77
  78 /* IO-DATA BCTV7E Remote */
  79 static IR_KEYTAB_TYPE ir_codes_iodata_bctv7e[IR_KEYTAB_SIZE] = {
  80         [0x40] = KEY_TV,
  81         [0x20] = KEY_RADIO,             /* FM */
  82         [0x60] = KEY_EPG,
  83         [0x00] = KEY_POWER,
  84
  85         /* Keys 0 to 9 */
  86         [0x44] = KEY_KP0,               /* 10 */
  87         [0x50] = KEY_KP1,
  88         [0x30] = KEY_KP2,
  89         [0x70] = KEY_KP3,
  90         [0x48] = KEY_KP4,
  91         [0x28] = KEY_KP5,
  92         [0x68] = KEY_KP6,
  93         [0x58] = KEY_KP7,
  94         [0x38] = KEY_KP8,
  95         [0x78] = KEY_KP9,
  96
  97         [0x10] = KEY_L,                 /* Live */
  98         [0x08] = KEY_T,                 /* Time Shift */
  99
 100         [0x18] = KEY_PLAYPAUSE,         /* Play */
 101
 102         [0x24] = KEY_ENTER,             /* 11 */
 103         [0x64] = KEY_ESC,               /* 12 */
 104         [0x04] = KEY_M,                 /* Multi */
 105
 106         [0x54] = KEY_VIDEO,
 107         [0x34] = KEY_CHANNELUP,
 108         [0x74] = KEY_VOLUMEUP,
 109         [0x14] = KEY_MUTE,
 110
 111         [0x4c] = KEY_S,                 /* SVIDEO */
 112         [0x2c] = KEY_CHANNELDOWN,
 113         [0x6c] = KEY_VOLUMEDOWN,
 114         [0x0c] = KEY_ZOOM,
 115
 116         [0x5c] = KEY_PAUSE,
 117         [0x3c] = KEY_C,                 /* || (red) */
 118         [0x7c] = KEY_RECORD,            /* recording */
 119         [0x1c] = KEY_STOP,
 120
 121         [0x41] = KEY_REWIND,            /* backward << */
 122         [0x21] = KEY_PLAY,
 123         [0x61] = KEY_FASTFORWARD,       /* forward >> */
 124         [0x01] = KEY_NEXT,              /* skip >| */
 125 };
 126
 127 /* ---------------------------------------------------------------------- */
 128
 129 /* ADS Tech Instant TV DVB-T PCI Remote */
 130 static IR_KEYTAB_TYPE ir_codes_adstech_dvb_t_pci[IR_KEYTAB_SIZE] = {
 131         /* Keys 0 to 9 */
 132         [0x4d] = KEY_0,
 133         [0x57] = KEY_1,
 134         [0x4f] = KEY_2,
 135         [0x53] = KEY_3,
 136         [0x56] = KEY_4,
 137         [0x4e] = KEY_5,
 138         [0x5e] = KEY_6,
 139         [0x54] = KEY_7,
 140         [0x4c] = KEY_8,
 141         [0x5c] = KEY_9,
 142
 143         [0x5b] = KEY_POWER,
 144         [0x5f] = KEY_MUTE,
 145         [0x55] = KEY_GOTO,
 146         [0x5d] = KEY_SEARCH,
 147         [0x17] = KEY_EPG,               /* Guide */
 148         [0x1f] = KEY_MENU,
 149         [0x0f] = KEY_UP,
 150         [0x46] = KEY_DOWN,
 151         [0x16] = KEY_LEFT,
 152         [0x1e] = KEY_RIGHT,
 153         [0x0e] = KEY_SELECT,            /* Enter */
 154         [0x5a] = KEY_INFO,
 155         [0x52] = KEY_EXIT,
 156         [0x59] = KEY_PREVIOUS,
 157         [0x51] = KEY_NEXT,
 158         [0x58] = KEY_REWIND,
 159         [0x50] = KEY_FORWARD,
 160         [0x44] = KEY_PLAYPAUSE,
 161         [0x07] = KEY_STOP,
 162         [0x1b] = KEY_RECORD,
 163         [0x13] = KEY_TUNER,             /* Live */
 164         [0x0a] = KEY_A,
 165         [0x12] = KEY_B,
 166         [0x03] = KEY_PROG1,             /* 1 */
 167         [0x01] = KEY_PROG2,             /* 2 */
 168         [0x00] = KEY_PROG3,             /* 3 */
 169         [0x06] = KEY_DVD,
 170         [0x48] = KEY_AUX,               /* Photo */
 171         [0x40] = KEY_VIDEO,
 172         [0x19] = KEY_AUDIO,             /* Music */
 173         [0x0b] = KEY_CHANNELUP,
 174         [0x08] = KEY_CHANNELDOWN,
 175         [0x15] = KEY_VOLUMEUP,
 176         [0x1c] = KEY_VOLUMEDOWN,
 177 };
 178
 179 /* ---------------------------------------------------------------------- */
 180
 181 /* MSI TV@nywhere remote */
 182 static IR_KEYTAB_TYPE ir_codes_msi_tvanywhere[IR_KEYTAB_SIZE] = {
 183         /* Keys 0 to 9 */
 184         [0x00] = KEY_0,
 185         [0x01] = KEY_1,
 186         [0x02] = KEY_2,
 187         [0x03] = KEY_3,
 188         [0x04] = KEY_4,
 189         [0x05] = KEY_5,
 190         [0x06] = KEY_6,
 191         [0x07] = KEY_7,
 192         [0x08] = KEY_8,
 193         [0x09] = KEY_9,
 194
 195         [0x0c] = KEY_MUTE,
 196         [0x0f] = KEY_SCREEN,            /* Full Screen */
 197         [0x10] = KEY_F,                 /* Funtion */
 198         [0x11] = KEY_T,                 /* Time shift */
 199         [0x12] = KEY_POWER,
 200         [0x13] = KEY_MEDIA,             /* MTS */
 201         [0x14] = KEY_SLOW,
 202         [0x16] = KEY_REWIND,            /* backward << */
 203         [0x17] = KEY_ENTER,             /* Return */
 204         [0x18] = KEY_FASTFORWARD,       /* forward >> */
 205         [0x1a] = KEY_CHANNELUP,
 206         [0x1b] = KEY_VOLUMEUP,
 207         [0x1e] = KEY_CHANNELDOWN,
 208         [0x1f] = KEY_VOLUMEDOWN,
 209 };
 210
 211 /* ---------------------------------------------------------------------- */
 212
 213 /* Cinergy 1400 DVB-T */
 214 static IR_KEYTAB_TYPE ir_codes_cinergy_1400[IR_KEYTAB_SIZE] = {
 215         [0x01] = KEY_POWER,
 216         [0x02] = KEY_1,
 217         [0x03] = KEY_2,
 218         [0x04] = KEY_3,
 219         [0x05] = KEY_4,
 220         [0x06] = KEY_5,
 221         [0x07] = KEY_6,
 222         [0x08] = KEY_7,
 223         [0x09] = KEY_8,
 224         [0x0a] = KEY_9,
 225         [0x0c] = KEY_0,
 226
 227         [0x0b] = KEY_VIDEO,
 228         [0x0d] = KEY_REFRESH,
 229         [0x0e] = KEY_SELECT,
 230         [0x0f] = KEY_EPG,
 231         [0x10] = KEY_UP,
 232         [0x11] = KEY_LEFT,
 233         [0x12] = KEY_OK,
 234         [0x13] = KEY_RIGHT,
 235         [0x14] = KEY_DOWN,
 236         [0x15] = KEY_TEXT,
 237         [0x16] = KEY_INFO,
 238
 239         [0x17] = KEY_RED,
 240         [0x18] = KEY_GREEN,
 241         [0x19] = KEY_YELLOW,
 242         [0x1a] = KEY_BLUE,
 243
 244         [0x1b] = KEY_CHANNELUP,
 245         [0x1c] = KEY_VOLUMEUP,
 246         [0x1d] = KEY_MUTE,
 247         [0x1e] = KEY_VOLUMEDOWN,
 248         [0x1f] = KEY_CHANNELDOWN,
 249
 250         [0x40] = KEY_PAUSE,
 251         [0x4c] = KEY_PLAY,
 252         [0x58] = KEY_RECORD,
 253         [0x54] = KEY_PREVIOUS,
 254         [0x48] = KEY_STOP,
 255         [0x5c] = KEY_NEXT,
 256 };
 257
 258 /* ---------------------------------------------------------------------- */
 259
 260 /* AVERTV STUDIO 303 Remote */
 261 static IR_KEYTAB_TYPE ir_codes_avertv_303[IR_KEYTAB_SIZE] = {
 262         [ 0x2a ] = KEY_KP1,
 263         [ 0x32 ] = KEY_KP2,
 264         [ 0x3a ] = KEY_KP3,
 265         [ 0x4a ] = KEY_KP4,
 266         [ 0x52 ] = KEY_KP5,
 267         [ 0x5a ] = KEY_KP6,
 268         [ 0x6a ] = KEY_KP7,
 269         [ 0x72 ] = KEY_KP8,
 270         [ 0x7a ] = KEY_KP9,
 271         [ 0x0e ] = KEY_KP0,
 272
 273         [ 0x02 ] = KEY_POWER,
 274         [ 0x22 ] = KEY_VIDEO,
 275         [ 0x42 ] = KEY_AUDIO,
 276         [ 0x62 ] = KEY_ZOOM,
 277         [ 0x0a ] = KEY_TV,
 278         [ 0x12 ] = KEY_CD,
 279         [ 0x1a ] = KEY_TEXT,
 280
 281         [ 0x16 ] = KEY_SUBTITLE,
 282         [ 0x1e ] = KEY_REWIND,
 283         [ 0x06 ] = KEY_PRINT,
 284
 285         [ 0x2e ] = KEY_SEARCH,
 286         [ 0x36 ] = KEY_SLEEP,
 287         [ 0x3e ] = KEY_SHUFFLE,
 288         [ 0x26 ] = KEY_MUTE,
 289
 290         [ 0x4e ] = KEY_RECORD,
 291         [ 0x56 ] = KEY_PAUSE,
 292         [ 0x5e ] = KEY_STOP,
 293         [ 0x46 ] = KEY_PLAY,
 294
 295         [ 0x6e ] = KEY_RED,
 296         [ 0x0b ] = KEY_GREEN,
 297         [ 0x66 ] = KEY_YELLOW,
 298         [ 0x03 ] = KEY_BLUE,
 299
 300         [ 0x76 ] = KEY_LEFT,
 301         [ 0x7e ] = KEY_RIGHT,
 302         [ 0x13 ] = KEY_DOWN,
 303         [ 0x1b ] = KEY_UP,
 304 };
 305
 306 /* ---------------------------------------------------------------------- */
 307
 308 /* DigitalNow DNTV Live! DVB-T Pro Remote */
 309 static IR_KEYTAB_TYPE ir_codes_dntv_live_dvbt_pro[IR_KEYTAB_SIZE] = {
 310         [ 0x16 ] = KEY_POWER,
 311         [ 0x5b ] = KEY_HOME,
 312
 313         [ 0x55 ] = KEY_TV,              /* live tv */
 314         [ 0x58 ] = KEY_TUNER,           /* digital Radio */
 315         [ 0x5a ] = KEY_RADIO,           /* FM radio */
 316         [ 0x59 ] = KEY_DVD,             /* dvd menu */
 317         [ 0x03 ] = KEY_1,
 318         [ 0x01 ] = KEY_2,
 319         [ 0x06 ] = KEY_3,
 320         [ 0x09 ] = KEY_4,
 321         [ 0x1d ] = KEY_5,
 322         [ 0x1f ] = KEY_6,
 323         [ 0x0d ] = KEY_7,
 324         [ 0x19 ] = KEY_8,
 325         [ 0x1b ] = KEY_9,
 326         [ 0x0c ] = KEY_CANCEL,
 327         [ 0x15 ] = KEY_0,
 328         [ 0x4a ] = KEY_CLEAR,
 329         [ 0x13 ] = KEY_BACK,
 330         [ 0x00 ] = KEY_TAB,
 331         [ 0x4b ] = KEY_UP,
 332         [ 0x4e ] = KEY_LEFT,
 333         [ 0x4f ] = KEY_OK,
 334         [ 0x52 ] = KEY_RIGHT,
 335         [ 0x51 ] = KEY_DOWN,
 336         [ 0x1e ] = KEY_VOLUMEUP,
 337         [ 0x0a ] = KEY_VOLUMEDOWN,
 338         [ 0x02 ] = KEY_CHANNELDOWN,
 339         [ 0x05 ] = KEY_CHANNELUP,
 340         [ 0x11 ] = KEY_RECORD,
 341         [ 0x14 ] = KEY_PLAY,
 342         [ 0x4c ] = KEY_PAUSE,
 343         [ 0x1a ] = KEY_STOP,
 344         [ 0x40 ] = KEY_REWIND,
 345         [ 0x12 ] = KEY_FASTFORWARD,
 346         [ 0x41 ] = KEY_PREVIOUSSONG,    /* replay |< */
 347         [ 0x42 ] = KEY_NEXTSONG,        /* skip >| */
 348         [ 0x54 ] = KEY_CAMERA,          /* capture */
 349         [ 0x50 ] = KEY_LANGUAGE,        /* sap */
 350         [ 0x47 ] = KEY_TV2,             /* pip */
 351         [ 0x4d ] = KEY_SCREEN,
 352         [ 0x43 ] = KEY_SUBTITLE,
 353         [ 0x10 ] = KEY_MUTE,
 354         [ 0x49 ] = KEY_AUDIO,           /* l/r */
 355         [ 0x07 ] = KEY_SLEEP,
 356         [ 0x08 ] = KEY_VIDEO,           /* a/v */
 357         [ 0x0e ] = KEY_PREVIOUS,        /* recall */
 358         [ 0x45 ] = KEY_ZOOM,            /* zoom + */
 359         [ 0x46 ] = KEY_ANGLE,           /* zoom - */
 360         [ 0x56 ] = KEY_RED,
 361         [ 0x57 ] = KEY_GREEN,
 362         [ 0x5c ] = KEY_YELLOW,
 363         [ 0x5d ] = KEY_BLUE,
 364 };
 365
 366 /* ---------------------------------------------------------------------- */
 367
 368 struct cx88_IR {
 369         struct cx88_core *core;
 370         struct input_dev *input;
 371         struct ir_input_state ir;
 372         char name[32];
 373         char phys[32];
 374
 375         /* sample from gpio pin 16 */
 376         u32 sampling;
 377         u32 samples[16];
 378         int scount;
 379         unsigned long release;
 380
 381         /* poll external decoder */
 382         int polling;
 383         struct work_struct work;
 384         struct timer_list timer;
 385         u32 gpio_addr;
 386         u32 last_gpio;
 387         u32 mask_keycode;
 388         u32 mask_keydown;
 389         u32 mask_keyup;
 390 };
 391
 392 static int ir_debug = 0;
 393 module_param(ir_debug, int, 0644);      /* debug level [IR] */
 394 MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
 395
 396 #define ir_dprintk(fmt, arg...) if (ir_debug) \
 397         printk(KERN_DEBUG "%s IR: " fmt , ir->core->name , ##arg)
 398
 399 /* ---------------------------------------------------------------------- */
 400
 401 static void cx88_ir_handle_key(struct cx88_IR *ir)
 402 {
 403         struct cx88_core *core = ir->core;
 404         u32 gpio, data;
 405
 406         /* read gpio value */
 407         gpio = cx_read(ir->gpio_addr);
 408         if (ir->polling) {
 409                 if (ir->last_gpio == gpio)
 410                         return;
 411                 ir->last_gpio = gpio;
 412         }
 413
 414         /* extract data */
 415         data = ir_extract_bits(gpio, ir->mask_keycode);
 416         ir_dprintk("irq gpio=0x%x code=%d | %s%s%s\n",
 417                    gpio, data,
 418                    ir->polling ? "poll" : "irq",
 419                    (gpio & ir->mask_keydown) ? " down" : "",
 420                    (gpio & ir->mask_keyup) ? " up" : "");
 421
 422         if (ir->mask_keydown) {
 423                 /* bit set on keydown */
 424                 if (gpio & ir->mask_keydown) {
 425                         ir_input_keydown(ir->input, &ir->ir, data, data);
 426                 } else {
 427                         ir_input_nokey(ir->input, &ir->ir);
 428                 }
 429
 430         } else if (ir->mask_keyup) {
 431                 /* bit cleared on keydown */
 432                 if (0 == (gpio & ir->mask_keyup)) {
 433                         ir_input_keydown(ir->input, &ir->ir, data, data);
 434                 } else {
 435                         ir_input_nokey(ir->input, &ir->ir);
 436                 }
 437
 438         } else {
 439                 /* can't distinguish keydown/up :-/ */
 440                 ir_input_keydown(ir->input, &ir->ir, data, data);
 441                 ir_input_nokey(ir->input, &ir->ir);
 442         }
 443 }
 444
 445 static void ir_timer(unsigned long data)
 446 {
 447         struct cx88_IR *ir = (struct cx88_IR *)data;
 448
 449         schedule_work(&ir->work);
 450 }
 451
 452 static void cx88_ir_work(void *data)
 453 {
 454         struct cx88_IR *ir = data;
 455         unsigned long timeout;
 456
 457         cx88_ir_handle_key(ir);
 458         timeout = jiffies + (ir->polling * HZ / 1000);
 459         mod_timer(&ir->timer, timeout);
 460 }
 461
 462 /* ---------------------------------------------------------------------- */
 463
 464 int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
 465 {
 466         struct cx88_IR *ir;
 467         struct input_dev *input_dev;
 468         IR_KEYTAB_TYPE *ir_codes = NULL;
 469         int ir_type = IR_TYPE_OTHER;
 470
 471         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 472         input_dev = input_allocate_device();
 473         if (!ir || !input_dev) {
 474                 kfree(ir);
 475                 input_free_device(input_dev);
 476                 return -ENOMEM;
 477         }
 478
 479         ir->input = input_dev;
 480
 481         /* detect & configure */
 482         switch (core->board) {
 483         case CX88_BOARD_DNTV_LIVE_DVB_T:
 484         case CX88_BOARD_KWORLD_DVB_T:
 485         case CX88_BOARD_KWORLD_DVB_T_CX22702:
 486                 ir_codes = ir_codes_dntv_live_dvb_t;
 487                 ir->gpio_addr = MO_GP1_IO;
 488                 ir->mask_keycode = 0x1f;
 489                 ir->mask_keyup = 0x60;
 490                 ir->polling = 50; /* ms */
 491                 break;
 492         case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
 493                 ir_codes = ir_codes_cinergy_1400;
 494                 ir_type = IR_TYPE_PD;
 495                 ir->sampling = 0xeb04; /* address */
 496                 break;
 497         case CX88_BOARD_HAUPPAUGE:
 498         case CX88_BOARD_HAUPPAUGE_DVB_T1:
 499         case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
 500         case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
 501         case CX88_BOARD_HAUPPAUGE_HVR1100:
 502                 ir_codes = ir_codes_hauppauge_new;
 503                 ir_type = IR_TYPE_RC5;
 504                 ir->sampling = 1;
 505                 break;
 506         case CX88_BOARD_WINFAST2000XP_EXPERT:
 507                 ir_codes = ir_codes_winfast;
 508                 ir->gpio_addr = MO_GP0_IO;
 509                 ir->mask_keycode = 0x8f8;
 510                 ir->mask_keyup = 0x100;
 511                 ir->polling = 1; /* ms */
 512                 break;
 513         case CX88_BOARD_IODATA_GVBCTV7E:
 514                 ir_codes = ir_codes_iodata_bctv7e;
 515                 ir->gpio_addr = MO_GP0_IO;
 516                 ir->mask_keycode = 0xfd;
 517                 ir->mask_keydown = 0x02;
 518                 ir->polling = 5; /* ms */
 519                 break;
 520         case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
 521                 ir_codes = ir_codes_pixelview;
 522                 ir->gpio_addr = MO_GP1_IO;
 523                 ir->mask_keycode = 0x1f;
 524                 ir->mask_keyup = 0x80;
 525                 ir->polling = 1; /* ms */
 526                 break;
 527         case CX88_BOARD_ADSTECH_DVB_T_PCI:
 528                 ir_codes = ir_codes_adstech_dvb_t_pci;
 529                 ir->gpio_addr = MO_GP1_IO;
 530                 ir->mask_keycode = 0xbf;
 531                 ir->mask_keyup = 0x40;
 532                 ir->polling = 50; /* ms */
 533                 break;
 534         case CX88_BOARD_MSI_TVANYWHERE_MASTER:
 535                 ir_codes = ir_codes_msi_tvanywhere;
 536                 ir->gpio_addr = MO_GP1_IO;
 537                 ir->mask_keycode = 0x1f;
 538                 ir->mask_keyup = 0x40;
 539                 ir->polling = 1; /* ms */
 540                 break;
 541         case CX88_BOARD_AVERTV_303:
 542         case CX88_BOARD_AVERTV_STUDIO_303:
 543                 ir_codes         = ir_codes_avertv_303;
 544                 ir->gpio_addr    = MO_GP2_IO;
 545                 ir->mask_keycode = 0xfb;
 546                 ir->mask_keydown = 0x02;
 547                 ir->polling      = 50; /* ms */
 548                 break;
 549         case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
 550                 ir_codes = ir_codes_dntv_live_dvbt_pro;
 551                 ir_type = IR_TYPE_PD;
 552                 ir->sampling = 0xff00; /* address */
 553                 break;
 554         }
 555
 556         if (NULL == ir_codes) {
 557                 kfree(ir);
 558                 input_free_device(input_dev);
 559                 return -ENODEV;
 560         }
 561
 562         /* init input device */
 563         snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)",
 564                  cx88_boards[core->board].name);
 565         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
 566
 567         ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
 568         input_dev->name = ir->name;
 569         input_dev->phys = ir->phys;
 570         input_dev->id.bustype = BUS_PCI;
 571         input_dev->id.version = 1;
 572         if (pci->subsystem_vendor) {
 573                 input_dev->id.vendor = pci->subsystem_vendor;
 574                 input_dev->id.product = pci->subsystem_device;
 575         } else {
 576                 input_dev->id.vendor = pci->vendor;
 577                 input_dev->id.product = pci->device;
 578         }
 579         input_dev->cdev.dev = &pci->dev;
 580         /* record handles to ourself */
 581         ir->core = core;
 582         core->ir = ir;
 583
 584         if (ir->polling) {
 585                 INIT_WORK(&ir->work, cx88_ir_work, ir);
 586                 init_timer(&ir->timer);
 587                 ir->timer.function = ir_timer;
 588                 ir->timer.data = (unsigned long)ir;
 589                 schedule_work(&ir->work);
 590         }
 591         if (ir->sampling) {
 592                 core->pci_irqmask |= (1 << 18); /* IR_SMP_INT */
 593                 cx_write(MO_DDS_IO, 0xa80a80);  /* 4 kHz sample rate */
 594                 cx_write(MO_DDSCFG_IO, 0x5);    /* enable */
 595         }
 596
 597         /* all done */
 598         input_register_device(ir->input);
 599
 600         return 0;
 601 }
 602
 603 int cx88_ir_fini(struct cx88_core *core)
 604 {
 605         struct cx88_IR *ir = core->ir;
 606
 607         /* skip detach on non attached boards */
 608         if (NULL == ir)
 609                 return 0;
 610
 611         if (ir->sampling) {
 612                 cx_write(MO_DDSCFG_IO, 0x0);
 613                 core->pci_irqmask &= ~(1 << 18);
 614         }
 615         if (ir->polling) {
 616                 del_timer(&ir->timer);
 617                 flush_scheduled_work();
 618         }
 619
 620         input_unregister_device(ir->input);
 621         kfree(ir);
 622
 623         /* done */
 624         core->ir = NULL;
 625         return 0;
 626 }
 627
 628 /* ---------------------------------------------------------------------- */
 629
 630 void cx88_ir_irq(struct cx88_core *core)
 631 {
 632         struct cx88_IR *ir = core->ir;
 633         u32 samples, ircode;
 634         int i;
 635
 636         if (NULL == ir)
 637                 return;
 638         if (!ir->sampling)
 639                 return;
 640
 641         samples = cx_read(MO_SAMPLE_IO);
 642         if (0 != samples && 0xffffffff != samples) {
 643                 /* record sample data */
 644                 if (ir->scount < ARRAY_SIZE(ir->samples))
 645                         ir->samples[ir->scount++] = samples;
 646                 return;
 647         }
 648         if (!ir->scount) {
 649                 /* nothing to sample */
 650                 if (ir->ir.keypressed && time_after(jiffies, ir->release))
 651                         ir_input_nokey(ir->input, &ir->ir);
 652                 return;
 653         }
 654
 655         /* have a complete sample */
 656         if (ir->scount < ARRAY_SIZE(ir->samples))
 657                 ir->samples[ir->scount++] = samples;
 658         for (i = 0; i < ir->scount; i++)
 659                 ir->samples[i] = ~ir->samples[i];
 660         if (ir_debug)
 661                 ir_dump_samples(ir->samples, ir->scount);
 662
 663         /* decode it */
 664         switch (core->board) {
 665         case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
 666         case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
 667                 ircode = ir_decode_pulsedistance(ir->samples, ir->scount, 1, 4);
 668
 669                 if (ircode == 0xffffffff) { /* decoding error */
 670                         ir_dprintk("pulse distance decoding error\n");
 671                         break;
 672                 }
 673
 674                 ir_dprintk("pulse distance decoded: %x\n", ircode);
 675
 676                 if (ircode == 0) { /* key still pressed */
 677                         ir_dprintk("pulse distance decoded repeat code\n");
 678                         ir->release = jiffies + msecs_to_jiffies(120);
 679                         break;
 680                 }
 681
 682                 if ((ircode & 0xffff) != (ir->sampling & 0xffff)) { /* wrong address */
 683                         ir_dprintk("pulse distance decoded wrong address\n");
 684                         break;
 685                 }
 686
 687                 if (((~ircode >> 24) & 0xff) != ((ircode >> 16) & 0xff)) { /* wrong checksum */
 688                         ir_dprintk("pulse distance decoded wrong check sum\n");
 689                         break;
 690                 }
 691
 692                 ir_dprintk("Key Code: %x\n", (ircode >> 16) & 0x7f);
 693
 694                 ir_input_keydown(ir->input, &ir->ir, (ircode >> 16) & 0x7f, (ircode >> 16) & 0xff);
 695                 ir->release = jiffies + msecs_to_jiffies(120);
 696                 break;
 697         case CX88_BOARD_HAUPPAUGE:
 698         case CX88_BOARD_HAUPPAUGE_DVB_T1:
 699         case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
 700         case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
 701         case CX88_BOARD_HAUPPAUGE_HVR1100:
 702                 ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
 703                 ir_dprintk("biphase decoded: %x\n", ircode);
 704                 if ((ircode & 0xfffff000) != 0x3000)
 705                         break;
 706                 ir_input_keydown(ir->input, &ir->ir, ircode & 0x3f, ircode);
 707                 ir->release = jiffies + msecs_to_jiffies(120);
 708                 break;
 709         }
 710
 711         ir->scount = 0;
 712         return;
 713 }
 714
 715 /* ---------------------------------------------------------------------- */
 716
 717 MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
 718 MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
 719 MODULE_LICENSE("GPL");
 720 /*
 721  * Local variables:
 722  * c-basic-offset: 8
 723  * End:
 724  */