drivers/media/video/saa7134/saa7134-input.c

   1 /*
   2  * $Id: saa7134-input.c,v 1.16 2004/12/10 12:33:39 kraxel Exp $
   3  *
   4  * handle saa7134 IR remotes via linux kernel input layer.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19  *
  20  */
  21
  22 #include <linux/module.h>
  23 #include <linux/moduleparam.h>
  24 #include <linux/init.h>
  25 #include <linux/delay.h>
  26 #include <linux/sched.h>
  27 #include <linux/interrupt.h>
  28 #include <linux/input.h>
  29
  30 #include "saa7134-reg.h"
  31 #include "saa7134.h"
  32
  33 static unsigned int disable_ir = 0;
  34 module_param(disable_ir, int, 0444);
  35 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
  36
  37 static unsigned int ir_debug = 0;
  38 module_param(ir_debug, int, 0644);
  39 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
  40
  41 #define dprintk(fmt, arg...)    if (ir_debug) \
  42         printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
  43
  44 /* ---------------------------------------------------------------------- */
  45
  46 static IR_KEYTAB_TYPE flyvideo_codes[IR_KEYTAB_SIZE] = {
  47         [   15 ] = KEY_KP0,
  48         [    3 ] = KEY_KP1,
  49         [    4 ] = KEY_KP2,
  50         [    5 ] = KEY_KP3,
  51         [    7 ] = KEY_KP4,
  52         [    8 ] = KEY_KP5,
  53         [    9 ] = KEY_KP6,
  54         [   11 ] = KEY_KP7,
  55         [   12 ] = KEY_KP8,
  56         [   13 ] = KEY_KP9,
  57
  58         [   14 ] = KEY_TUNER,        // Air/Cable
  59         [   17 ] = KEY_VIDEO,        // Video
  60         [   21 ] = KEY_AUDIO,        // Audio
  61         [    0 ] = KEY_POWER,        // Pover
  62         [    2 ] = KEY_ZOOM,         // Fullscreen
  63         [   27 ] = KEY_MUTE,         // Mute
  64         [   20 ] = KEY_VOLUMEUP,
  65         [   23 ] = KEY_VOLUMEDOWN,
  66         [   18 ] = KEY_CHANNELUP,    // Channel +
  67         [   19 ] = KEY_CHANNELDOWN,  // Channel -
  68         [    6 ] = KEY_AGAIN,        // Recal
  69         [   16 ] = KEY_KPENTER,      // Enter
  70
  71 #if 1 /* FIXME */
  72         [   26 ] = KEY_F22,          // Stereo
  73         [   24 ] = KEY_EDIT,         // AV Source
  74 #endif
  75 };
  76
  77 static IR_KEYTAB_TYPE cinergy_codes[IR_KEYTAB_SIZE] = {
  78         [    0 ] = KEY_KP0,
  79         [    1 ] = KEY_KP1,
  80         [    2 ] = KEY_KP2,
  81         [    3 ] = KEY_KP3,
  82         [    4 ] = KEY_KP4,
  83         [    5 ] = KEY_KP5,
  84         [    6 ] = KEY_KP6,
  85         [    7 ] = KEY_KP7,
  86         [    8 ] = KEY_KP8,
  87         [    9 ] = KEY_KP9,
  88
  89         [ 0x0a ] = KEY_POWER,
  90         [ 0x0b ] = KEY_PROG1,           // app
  91         [ 0x0c ] = KEY_ZOOM,            // zoom/fullscreen
  92         [ 0x0d ] = KEY_CHANNELUP,       // channel
  93         [ 0x0e ] = KEY_CHANNELDOWN,     // channel-
  94         [ 0x0f ] = KEY_VOLUMEUP,
  95         [ 0x10 ] = KEY_VOLUMEDOWN,
  96         [ 0x11 ] = KEY_TUNER,           // AV
  97         [ 0x12 ] = KEY_NUMLOCK,         // -/--
  98         [ 0x13 ] = KEY_AUDIO,           // audio
  99         [ 0x14 ] = KEY_MUTE,
 100         [ 0x15 ] = KEY_UP,
 101         [ 0x16 ] = KEY_DOWN,
 102         [ 0x17 ] = KEY_LEFT,
 103         [ 0x18 ] = KEY_RIGHT,
 104         [ 0x19 ] = BTN_LEFT,
 105         [ 0x1a ] = BTN_RIGHT,
 106         [ 0x1b ] = KEY_WWW,             // text
 107         [ 0x1c ] = KEY_REWIND,
 108         [ 0x1d ] = KEY_FORWARD,
 109         [ 0x1e ] = KEY_RECORD,
 110         [ 0x1f ] = KEY_PLAY,
 111         [ 0x20 ] = KEY_PREVIOUSSONG,
 112         [ 0x21 ] = KEY_NEXTSONG,
 113         [ 0x22 ] = KEY_PAUSE,
 114         [ 0x23 ] = KEY_STOP,
 115 };
 116
 117 /* Alfons Geser <a.geser@cox.net>
 118  * updates from Job D. R. Borges <jobdrb@ig.com.br> */
 119 static IR_KEYTAB_TYPE eztv_codes[IR_KEYTAB_SIZE] = {
 120         [ 18 ] = KEY_POWER,
 121         [  1 ] = KEY_TV,             // DVR
 122         [ 21 ] = KEY_DVD,            // DVD
 123         [ 23 ] = KEY_AUDIO,          // music
 124                                      // DVR mode / DVD mode / music mode
 125
 126         [ 27 ] = KEY_MUTE,           // mute
 127         [  2 ] = KEY_LANGUAGE,       // MTS/SAP / audio / autoseek
 128         [ 30 ] = KEY_SUBTITLE,       // closed captioning / subtitle / seek
 129         [ 22 ] = KEY_ZOOM,           // full screen
 130         [ 28 ] = KEY_VIDEO,          // video source / eject / delall
 131         [ 29 ] = KEY_RESTART,        // playback / angle / del
 132         [ 47 ] = KEY_SEARCH,         // scan / menu / playlist
 133         [ 48 ] = KEY_CHANNEL,        // CH surfing / bookmark / memo
 134
 135         [ 49 ] = KEY_HELP,           // help
 136         [ 50 ] = KEY_MODE,           // num/memo
 137         [ 51 ] = KEY_ESC,            // cancel
 138
 139         [ 12 ] = KEY_UP,             // up
 140         [ 16 ] = KEY_DOWN,           // down
 141         [  8 ] = KEY_LEFT,           // left
 142         [  4 ] = KEY_RIGHT,          // right
 143         [  3 ] = KEY_SELECT,         // select
 144
 145         [ 31 ] = KEY_REWIND,         // rewind
 146         [ 32 ] = KEY_PLAYPAUSE,      // play/pause
 147         [ 41 ] = KEY_FORWARD,        // forward
 148         [ 20 ] = KEY_AGAIN,          // repeat
 149         [ 43 ] = KEY_RECORD,         // recording
 150         [ 44 ] = KEY_STOP,           // stop
 151         [ 45 ] = KEY_PLAY,           // play
 152         [ 46 ] = KEY_SHUFFLE,        // snapshot / shuffle
 153
 154         [  0 ] = KEY_KP0,
 155         [  5 ] = KEY_KP1,
 156         [  6 ] = KEY_KP2,
 157         [  7 ] = KEY_KP3,
 158         [  9 ] = KEY_KP4,
 159         [ 10 ] = KEY_KP5,
 160         [ 11 ] = KEY_KP6,
 161         [ 13 ] = KEY_KP7,
 162         [ 14 ] = KEY_KP8,
 163         [ 15 ] = KEY_KP9,
 164
 165         [ 42 ] = KEY_VOLUMEUP,
 166         [ 17 ] = KEY_VOLUMEDOWN,
 167         [ 24 ] = KEY_CHANNELUP,      // CH.tracking up
 168         [ 25 ] = KEY_CHANNELDOWN,    // CH.tracking down
 169
 170         [ 19 ] = KEY_KPENTER,        // enter
 171         [ 33 ] = KEY_KPDOT,          // . (decimal dot)
 172 };
 173
 174 static IR_KEYTAB_TYPE avacssmart_codes[IR_KEYTAB_SIZE] = {
 175         [ 30 ] = KEY_POWER,             // power
 176         [ 28 ] = KEY_SEARCH,            // scan
 177         [  7 ] = KEY_SELECT,            // source
 178
 179         [ 22 ] = KEY_VOLUMEUP,
 180         [ 20 ] = KEY_VOLUMEDOWN,
 181         [ 31 ] = KEY_CHANNELUP,
 182         [ 23 ] = KEY_CHANNELDOWN,
 183         [ 24 ] = KEY_MUTE,
 184
 185         [  2 ] = KEY_KP0,
 186         [  1 ] = KEY_KP1,
 187         [ 11 ] = KEY_KP2,
 188         [ 27 ] = KEY_KP3,
 189         [  5 ] = KEY_KP4,
 190         [  9 ] = KEY_KP5,
 191         [ 21 ] = KEY_KP6,
 192         [  6 ] = KEY_KP7,
 193         [ 10 ] = KEY_KP8,
 194         [ 18 ] = KEY_KP9,
 195         [ 16 ] = KEY_KPDOT,
 196
 197         [  3 ] = KEY_TUNER,             // tv/fm
 198         [  4 ] = KEY_REWIND,            // fm tuning left or function left
 199         [ 12 ] = KEY_FORWARD,           // fm tuning right or function right
 200
 201         [  0 ] = KEY_RECORD,
 202         [  8 ] = KEY_STOP,
 203         [ 17 ] = KEY_PLAY,
 204
 205         [ 25 ] = KEY_ZOOM,
 206         [ 14 ] = KEY_MENU,              // function
 207         [ 19 ] = KEY_AGAIN,             // recall
 208         [ 29 ] = KEY_RESTART,           // reset
 209
 210 // FIXME
 211         [ 13 ] = KEY_F21,               // mts
 212         [ 15 ] = KEY_F22,               // min
 213         [ 26 ] = KEY_F23,               // freeze
 214 };
 215
 216 /* Alex Hermann <gaaf@gmx.net> */
 217 static IR_KEYTAB_TYPE md2819_codes[IR_KEYTAB_SIZE] = {
 218         [ 40 ] = KEY_KP1,
 219         [ 24 ] = KEY_KP2,
 220         [ 56 ] = KEY_KP3,
 221         [ 36 ] = KEY_KP4,
 222         [ 20 ] = KEY_KP5,
 223         [ 52 ] = KEY_KP6,
 224         [ 44 ] = KEY_KP7,
 225         [ 28 ] = KEY_KP8,
 226         [ 60 ] = KEY_KP9,
 227         [ 34 ] = KEY_KP0,
 228
 229         [ 32 ] = KEY_TV,                // TV/FM
 230         [ 16 ] = KEY_CD,                // CD
 231         [ 48 ] = KEY_TEXT,              // TELETEXT
 232         [  0 ] = KEY_POWER,             // POWER
 233
 234         [  8 ] = KEY_VIDEO,             // VIDEO
 235         [  4 ] = KEY_AUDIO,             // AUDIO
 236         [ 12 ] = KEY_ZOOM,              // FULL SCREEN
 237
 238         [ 18 ] = KEY_SUBTITLE,          // DISPLAY      - ???
 239         [ 50 ] = KEY_REWIND,            // LOOP         - ???
 240         [  2 ] = KEY_PRINT,             // PREVIEW      - ???
 241
 242         [ 42 ] = KEY_SEARCH,            // AUTOSCAN
 243         [ 26 ] = KEY_SLEEP,             // FREEZE       - ???
 244         [ 58 ] = KEY_SHUFFLE,           // SNAPSHOT     - ???
 245         [ 10 ] = KEY_MUTE,              // MUTE
 246
 247         [ 38 ] = KEY_RECORD,            // RECORD
 248         [ 22 ] = KEY_PAUSE,             // PAUSE
 249         [ 54 ] = KEY_STOP,              // STOP
 250         [  6 ] = KEY_PLAY,              // PLAY
 251
 252         [ 46 ] = KEY_RED,               // <RED>
 253         [ 33 ] = KEY_GREEN,             // <GREEN>
 254         [ 14 ] = KEY_YELLOW,            // <YELLOW>
 255         [  1 ] = KEY_BLUE,              // <BLUE>
 256
 257         [ 30 ] = KEY_VOLUMEDOWN,        // VOLUME-
 258         [ 62 ] = KEY_VOLUMEUP,          // VOLUME+
 259         [ 17 ] = KEY_CHANNELDOWN,       // CHANNEL/PAGE-
 260         [ 49 ] = KEY_CHANNELUP          // CHANNEL/PAGE+
 261 };
 262
 263 static IR_KEYTAB_TYPE videomate_tv_pvr_codes[IR_KEYTAB_SIZE] = {
 264         [ 20 ] = KEY_MUTE,
 265         [ 36 ] = KEY_ZOOM,
 266
 267         [  1 ] = KEY_DVD,
 268         [ 35 ] = KEY_RADIO,
 269         [  0 ] = KEY_TV,
 270
 271         [ 10 ] = KEY_REWIND,
 272         [  8 ] = KEY_PLAYPAUSE,
 273         [ 15 ] = KEY_FORWARD,
 274
 275         [  2 ] = KEY_PREVIOUS,
 276         [  7 ] = KEY_STOP,
 277         [  6 ] = KEY_NEXT,
 278
 279         [ 12 ] = KEY_UP,
 280         [ 14 ] = KEY_DOWN,
 281         [ 11 ] = KEY_LEFT,
 282         [ 13 ] = KEY_RIGHT,
 283         [ 17 ] = KEY_OK,
 284
 285         [  3 ] = KEY_MENU,
 286         [  9 ] = KEY_SETUP,
 287         [  5 ] = KEY_VIDEO,
 288         [ 34 ] = KEY_CHANNEL,
 289
 290         [ 18 ] = KEY_VOLUMEUP,
 291         [ 21 ] = KEY_VOLUMEDOWN,
 292         [ 16 ] = KEY_CHANNELUP,
 293         [ 19 ] = KEY_CHANNELDOWN,
 294
 295         [  4 ] = KEY_RECORD,
 296
 297         [ 22 ] = KEY_KP1,
 298         [ 23 ] = KEY_KP2,
 299         [ 24 ] = KEY_KP3,
 300         [ 25 ] = KEY_KP4,
 301         [ 26 ] = KEY_KP5,
 302         [ 27 ] = KEY_KP6,
 303         [ 28 ] = KEY_KP7,
 304         [ 29 ] = KEY_KP8,
 305         [ 30 ] = KEY_KP9,
 306         [ 31 ] = KEY_KP0,
 307
 308         [ 32 ] = KEY_LANGUAGE,
 309         [ 33 ] = KEY_SLEEP,
 310 };
 311 /* ---------------------------------------------------------------------- */
 312
 313 static int build_key(struct saa7134_dev *dev)
 314 {
 315         struct saa7134_ir *ir = dev->remote;
 316         u32 gpio, data;
 317
 318         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 319         saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
 320         saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
 321
 322         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 323         if (ir->polling) {
 324                 if (ir->last_gpio == gpio)
 325                         return 0;
 326                 ir->last_gpio = gpio;
 327         }
 328
 329         data = ir_extract_bits(gpio, ir->mask_keycode);
 330         dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
 331                 gpio, ir->mask_keycode, data);
 332
 333         if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 334             (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 335                 ir_input_keydown(&ir->dev,&ir->ir,data,data);
 336         } else {
 337                 ir_input_nokey(&ir->dev,&ir->ir);
 338         }
 339         return 0;
 340 }
 341
 342 /* ---------------------------------------------------------------------- */
 343
 344 void saa7134_input_irq(struct saa7134_dev *dev)
 345 {
 346         struct saa7134_ir *ir = dev->remote;
 347
 348         if (!ir->polling)
 349                 build_key(dev);
 350 }
 351
 352 static void saa7134_input_timer(unsigned long data)
 353 {
 354         struct saa7134_dev *dev = (struct saa7134_dev*)data;
 355         struct saa7134_ir *ir = dev->remote;
 356         unsigned long timeout;
 357
 358         build_key(dev);
 359         timeout = jiffies + (ir->polling * HZ / 1000);
 360         mod_timer(&ir->timer, timeout);
 361 }
 362
 363 int saa7134_input_init1(struct saa7134_dev *dev)
 364 {
 365         struct saa7134_ir *ir;
 366         IR_KEYTAB_TYPE *ir_codes = NULL;
 367         u32 mask_keycode = 0;
 368         u32 mask_keydown = 0;
 369         u32 mask_keyup   = 0;
 370         int polling      = 0;
 371         int ir_type      = IR_TYPE_OTHER;
 372
 373         if (!dev->has_remote)
 374                 return -ENODEV;
 375         if (disable_ir)
 376                 return -ENODEV;
 377
 378         /* detect & configure */
 379         switch (dev->board) {
 380         case SAA7134_BOARD_FLYVIDEO2000:
 381         case SAA7134_BOARD_FLYVIDEO3000:
 382                 ir_codes     = flyvideo_codes;
 383                 mask_keycode = 0xEC00000;
 384                 mask_keydown = 0x0040000;
 385                 break;
 386         case SAA7134_BOARD_CINERGY400:
 387         case SAA7134_BOARD_CINERGY600:
 388         case SAA7134_BOARD_CINERGY600_MK3:
 389                 ir_codes     = cinergy_codes;
 390                 mask_keycode = 0x00003f;
 391                 mask_keyup   = 0x040000;
 392                 break;
 393         case SAA7134_BOARD_ECS_TVP3XP:
 394         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
 395                 ir_codes     = eztv_codes;
 396                 mask_keycode = 0x00017c;
 397                 mask_keyup   = 0x000002;
 398                 polling      = 50; // ms
 399                 break;
 400         case SAA7134_BOARD_AVACSSMARTTV:
 401                 ir_codes     = avacssmart_codes;
 402                 mask_keycode = 0x00001F;
 403                 mask_keyup   = 0x000020;
 404                 polling      = 50; // ms
 405                 break;
 406         case SAA7134_BOARD_MD2819:
 407         case SAA7134_BOARD_AVERMEDIA_305:
 408         case SAA7134_BOARD_AVERMEDIA_307:
 409                 ir_codes     = md2819_codes;
 410                 mask_keycode = 0x0007C8;
 411                 mask_keydown = 0x000010;
 412                 polling      = 50; // ms
 413                 /* Set GPIO pin2 to high to enable the IR controller */
 414                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
 415                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
 416                 break;
 417         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
 418                 ir_codes     = videomate_tv_pvr_codes;
 419                 mask_keycode = 0x00003F;
 420                 mask_keyup   = 0x400000;
 421                 polling      = 50; // ms
 422                 break;
 423         }
 424         if (NULL == ir_codes) {
 425                 printk("%s: Oops: IR config error [card=%d]\n",
 426                        dev->name, dev->board);
 427                 return -ENODEV;
 428         }
 429
 430         ir = kmalloc(sizeof(*ir),GFP_KERNEL);
 431         if (NULL == ir)
 432                 return -ENOMEM;
 433         memset(ir,0,sizeof(*ir));
 434
 435         /* init hardware-specific stuff */
 436         ir->mask_keycode = mask_keycode;
 437         ir->mask_keydown = mask_keydown;
 438         ir->mask_keyup   = mask_keyup;
 439         ir->polling      = polling;
 440
 441         /* init input device */
 442         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
 443                  saa7134_boards[dev->board].name);
 444         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
 445                  pci_name(dev->pci));
 446
 447         ir_input_init(&ir->dev, &ir->ir, ir_type, ir_codes);
 448         ir->dev.name = ir->name;
 449         ir->dev.phys = ir->phys;
 450         ir->dev.id.bustype = BUS_PCI;
 451         ir->dev.id.version = 1;
 452         if (dev->pci->subsystem_vendor) {
 453                 ir->dev.id.vendor  = dev->pci->subsystem_vendor;
 454                 ir->dev.id.product = dev->pci->subsystem_device;
 455         } else {
 456                 ir->dev.id.vendor  = dev->pci->vendor;
 457                 ir->dev.id.product = dev->pci->device;
 458         }
 459
 460         /* all done */
 461         dev->remote = ir;
 462         if (ir->polling) {
 463                 init_timer(&ir->timer);
 464                 ir->timer.function = saa7134_input_timer;
 465                 ir->timer.data     = (unsigned long)dev;
 466                 ir->timer.expires  = jiffies + HZ;
 467                 add_timer(&ir->timer);
 468         }
 469
 470         input_register_device(&dev->remote->dev);
 471         printk("%s: registered input device for IR\n",dev->name);
 472         return 0;
 473 }
 474
 475 void saa7134_input_fini(struct saa7134_dev *dev)
 476 {
 477         if (NULL == dev->remote)
 478                 return;
 479
 480         input_unregister_device(&dev->remote->dev);
 481         if (dev->remote->polling)
 482                 del_timer_sync(&dev->remote->timer);
 483         kfree(dev->remote);
 484         dev->remote = NULL;
 485 }
 486
 487 /* ----------------------------------------------------------------------
 488  * Local variables:
 489  * c-basic-offset: 8
 490  * End:
 491  */