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 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 struct cx88_IR {
 309         struct cx88_core *core;
 310         struct input_dev *input;
 311         struct ir_input_state ir;
 312         char name[32];
 313         char phys[32];
 314
 315         /* sample from gpio pin 16 */
 316         int sampling;
 317         u32 samples[16];
 318         int scount;
 319         unsigned long release;
 320
 321         /* poll external decoder */
 322         int polling;
 323         struct work_struct work;
 324         struct timer_list timer;
 325         u32 gpio_addr;
 326         u32 last_gpio;
 327         u32 mask_keycode;
 328         u32 mask_keydown;
 329         u32 mask_keyup;
 330 };
 331
 332 static int ir_debug = 0;
 333 module_param(ir_debug, int, 0644);      /* debug level [IR] */
 334 MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
 335
 336 #define ir_dprintk(fmt, arg...) if (ir_debug) \
 337         printk(KERN_DEBUG "%s IR: " fmt , ir->core->name , ##arg)
 338
 339 /* ---------------------------------------------------------------------- */
 340
 341 static void cx88_ir_handle_key(struct cx88_IR *ir)
 342 {
 343         struct cx88_core *core = ir->core;
 344         u32 gpio, data;
 345
 346         /* read gpio value */
 347         gpio = cx_read(ir->gpio_addr);
 348         if (ir->polling) {
 349                 if (ir->last_gpio == gpio)
 350                         return;
 351                 ir->last_gpio = gpio;
 352         }
 353
 354         /* extract data */
 355         data = ir_extract_bits(gpio, ir->mask_keycode);
 356         ir_dprintk("irq gpio=0x%x code=%d | %s%s%s\n",
 357                    gpio, data,
 358                    ir->polling ? "poll" : "irq",
 359                    (gpio & ir->mask_keydown) ? " down" : "",
 360                    (gpio & ir->mask_keyup) ? " up" : "");
 361
 362         if (ir->mask_keydown) {
 363                 /* bit set on keydown */
 364                 if (gpio & ir->mask_keydown) {
 365                         ir_input_keydown(ir->input, &ir->ir, data, data);
 366                 } else {
 367                         ir_input_nokey(ir->input, &ir->ir);
 368                 }
 369
 370         } else if (ir->mask_keyup) {
 371                 /* bit cleared on keydown */
 372                 if (0 == (gpio & ir->mask_keyup)) {
 373                         ir_input_keydown(ir->input, &ir->ir, data, data);
 374                 } else {
 375                         ir_input_nokey(ir->input, &ir->ir);
 376                 }
 377
 378         } else {
 379                 /* can't distinguish keydown/up :-/ */
 380                 ir_input_keydown(ir->input, &ir->ir, data, data);
 381                 ir_input_nokey(ir->input, &ir->ir);
 382         }
 383 }
 384
 385 static void ir_timer(unsigned long data)
 386 {
 387         struct cx88_IR *ir = (struct cx88_IR *)data;
 388
 389         schedule_work(&ir->work);
 390 }
 391
 392 static void cx88_ir_work(void *data)
 393 {
 394         struct cx88_IR *ir = data;
 395         unsigned long timeout;
 396
 397         cx88_ir_handle_key(ir);
 398         timeout = jiffies + (ir->polling * HZ / 1000);
 399         mod_timer(&ir->timer, timeout);
 400 }
 401
 402 /* ---------------------------------------------------------------------- */
 403
 404 int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
 405 {
 406         struct cx88_IR *ir;
 407         struct input_dev *input_dev;
 408         IR_KEYTAB_TYPE *ir_codes = NULL;
 409         int ir_type = IR_TYPE_OTHER;
 410
 411         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 412         input_dev = input_allocate_device();
 413         if (!ir || !input_dev) {
 414                 kfree(ir);
 415                 input_free_device(input_dev);
 416                 return -ENOMEM;
 417         }
 418
 419         ir->input = input_dev;
 420
 421         /* detect & configure */
 422         switch (core->board) {
 423         case CX88_BOARD_DNTV_LIVE_DVB_T:
 424         case CX88_BOARD_KWORLD_DVB_T:
 425                 ir_codes = ir_codes_dntv_live_dvb_t;
 426                 ir->gpio_addr = MO_GP1_IO;
 427                 ir->mask_keycode = 0x1f;
 428                 ir->mask_keyup = 0x60;
 429                 ir->polling = 50; /* ms */
 430                 break;
 431         case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
 432                 ir_codes = ir_codes_cinergy_1400;
 433                 ir_type = IR_TYPE_PD;
 434                 ir->sampling = 1;
 435                 break;
 436         case CX88_BOARD_HAUPPAUGE:
 437         case CX88_BOARD_HAUPPAUGE_DVB_T1:
 438         case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
 439         case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
 440         case CX88_BOARD_HAUPPAUGE_HVR1100:
 441                 ir_codes = ir_codes_hauppauge_new;
 442                 ir_type = IR_TYPE_RC5;
 443                 ir->sampling = 1;
 444                 break;
 445         case CX88_BOARD_WINFAST2000XP_EXPERT:
 446                 ir_codes = ir_codes_winfast;
 447                 ir->gpio_addr = MO_GP0_IO;
 448                 ir->mask_keycode = 0x8f8;
 449                 ir->mask_keyup = 0x100;
 450                 ir->polling = 1; /* ms */
 451                 break;
 452         case CX88_BOARD_IODATA_GVBCTV7E:
 453                 ir_codes = ir_codes_iodata_bctv7e;
 454                 ir->gpio_addr = MO_GP0_IO;
 455                 ir->mask_keycode = 0xfd;
 456                 ir->mask_keydown = 0x02;
 457                 ir->polling = 5; /* ms */
 458                 break;
 459         case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
 460                 ir_codes = ir_codes_pixelview;
 461                 ir->gpio_addr = MO_GP1_IO;
 462                 ir->mask_keycode = 0x1f;
 463                 ir->mask_keyup = 0x80;
 464                 ir->polling = 1; /* ms */
 465                 break;
 466         case CX88_BOARD_ADSTECH_DVB_T_PCI:
 467                 ir_codes = ir_codes_adstech_dvb_t_pci;
 468                 ir->gpio_addr = MO_GP1_IO;
 469                 ir->mask_keycode = 0xbf;
 470                 ir->mask_keyup = 0x40;
 471                 ir->polling = 50; /* ms */
 472                 break;
 473         case CX88_BOARD_MSI_TVANYWHERE_MASTER:
 474                 ir_codes = ir_codes_msi_tvanywhere;
 475                 ir->gpio_addr = MO_GP1_IO;
 476                 ir->mask_keycode = 0x1f;
 477                 ir->mask_keyup = 0x40;
 478                 ir->polling = 1; /* ms */
 479                 break;
 480         case CX88_BOARD_AVERTV_303:
 481                 ir_codes         = ir_codes_avertv_303;
 482                 ir->gpio_addr    = MO_GP2_IO;
 483                 ir->mask_keycode = 0xfb;
 484                 ir->mask_keydown = 0x02;
 485                 ir->polling      = 50; /* ms */
 486                 break;
 487         }
 488
 489         if (NULL == ir_codes) {
 490                 kfree(ir);
 491                 input_free_device(input_dev);
 492                 return -ENODEV;
 493         }
 494
 495         /* init input device */
 496         snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)",
 497                  cx88_boards[core->board].name);
 498         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
 499
 500         ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
 501         input_dev->name = ir->name;
 502         input_dev->phys = ir->phys;
 503         input_dev->id.bustype = BUS_PCI;
 504         input_dev->id.version = 1;
 505         if (pci->subsystem_vendor) {
 506                 input_dev->id.vendor = pci->subsystem_vendor;
 507                 input_dev->id.product = pci->subsystem_device;
 508         } else {
 509                 input_dev->id.vendor = pci->vendor;
 510                 input_dev->id.product = pci->device;
 511         }
 512         input_dev->cdev.dev = &pci->dev;
 513         /* record handles to ourself */
 514         ir->core = core;
 515         core->ir = ir;
 516
 517         if (ir->polling) {
 518                 INIT_WORK(&ir->work, cx88_ir_work, ir);
 519                 init_timer(&ir->timer);
 520                 ir->timer.function = ir_timer;
 521                 ir->timer.data = (unsigned long)ir;
 522                 schedule_work(&ir->work);
 523         }
 524         if (ir->sampling) {
 525                 core->pci_irqmask |= (1 << 18); /* IR_SMP_INT */
 526                 cx_write(MO_DDS_IO, 0xa80a80);  /* 4 kHz sample rate */
 527                 cx_write(MO_DDSCFG_IO, 0x5);    /* enable */
 528         }
 529
 530         /* all done */
 531         input_register_device(ir->input);
 532
 533         return 0;
 534 }
 535
 536 int cx88_ir_fini(struct cx88_core *core)
 537 {
 538         struct cx88_IR *ir = core->ir;
 539
 540         /* skip detach on non attached boards */
 541         if (NULL == ir)
 542                 return 0;
 543
 544         if (ir->polling) {
 545                 del_timer(&ir->timer);
 546                 flush_scheduled_work();
 547         }
 548
 549         input_unregister_device(ir->input);
 550         kfree(ir);
 551
 552         /* done */
 553         core->ir = NULL;
 554         return 0;
 555 }
 556
 557 /* ---------------------------------------------------------------------- */
 558
 559 void cx88_ir_irq(struct cx88_core *core)
 560 {
 561         struct cx88_IR *ir = core->ir;
 562         u32 samples, ircode;
 563         int i;
 564
 565         if (NULL == ir)
 566                 return;
 567         if (!ir->sampling)
 568                 return;
 569
 570         samples = cx_read(MO_SAMPLE_IO);
 571         if (0 != samples && 0xffffffff != samples) {
 572                 /* record sample data */
 573                 if (ir->scount < ARRAY_SIZE(ir->samples))
 574                         ir->samples[ir->scount++] = samples;
 575                 return;
 576         }
 577         if (!ir->scount) {
 578                 /* nothing to sample */
 579                 if (ir->ir.keypressed && time_after(jiffies, ir->release))
 580                         ir_input_nokey(ir->input, &ir->ir);
 581                 return;
 582         }
 583
 584         /* have a complete sample */
 585         if (ir->scount < ARRAY_SIZE(ir->samples))
 586                 ir->samples[ir->scount++] = samples;
 587         for (i = 0; i < ir->scount; i++)
 588                 ir->samples[i] = ~ir->samples[i];
 589         if (ir_debug)
 590                 ir_dump_samples(ir->samples, ir->scount);
 591
 592         /* decode it */
 593         switch (core->board) {
 594         case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
 595                 ircode = ir_decode_pulsedistance(ir->samples, ir->scount, 1, 4);
 596
 597                 if (ircode == 0xffffffff) { /* decoding error */
 598                         ir_dprintk("pulse distance decoding error\n");
 599                         break;
 600                 }
 601
 602                 ir_dprintk("pulse distance decoded: %x\n", ircode);
 603
 604                 if (ircode == 0) { /* key still pressed */
 605                         ir_dprintk("pulse distance decoded repeat code\n");
 606                         ir->release = jiffies + msecs_to_jiffies(120);
 607                         break;
 608                 }
 609
 610                 if ((ircode & 0xffff) != 0xeb04) { /* wrong address */
 611                         ir_dprintk("pulse distance decoded wrong address\n");
 612                         break;
 613                 }
 614
 615                 if (((~ircode >> 24) & 0xff) != ((ircode >> 16) & 0xff)) { /* wrong checksum */
 616                         ir_dprintk("pulse distance decoded wrong check sum\n");
 617                         break;
 618                 }
 619
 620                 ir_dprintk("Key Code: %x\n", (ircode >> 16) & 0x7f);
 621
 622                 ir_input_keydown(ir->input, &ir->ir, (ircode >> 16) & 0x7f, (ircode >> 16) & 0xff);
 623                 ir->release = jiffies + msecs_to_jiffies(120);
 624                 break;
 625         case CX88_BOARD_HAUPPAUGE:
 626         case CX88_BOARD_HAUPPAUGE_DVB_T1:
 627         case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
 628         case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
 629                 ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
 630                 ir_dprintk("biphase decoded: %x\n", ircode);
 631                 if ((ircode & 0xfffff000) != 0x3000)
 632                         break;
 633                 ir_input_keydown(ir->input, &ir->ir, ircode & 0x3f, ircode);
 634                 ir->release = jiffies + msecs_to_jiffies(120);
 635                 break;
 636         }
 637
 638         ir->scount = 0;
 639         return;
 640 }
 641
 642 /* ---------------------------------------------------------------------- */
 643
 644 MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
 645 MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
 646 MODULE_LICENSE("GPL");
 647 /*
 648  * Local variables:
 649  * c-basic-offset: 8
 650  * End:
 651  */