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

   1 /*
   2  * $Id: saa7134-input.c,v 1.12 2004/11/07 13:17:15 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/init.h>
  24 #include <linux/delay.h>
  25 #include <linux/sched.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/input.h>
  28
  29 #include "saa7134-reg.h"
  30 #include "saa7134.h"
  31
  32 static unsigned int disable_ir = 0;
  33 module_param(disable_ir, int, 0444);
  34 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
  35
  36 static unsigned int ir_debug = 0;
  37 module_param(ir_debug, int, 0644);
  38 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
  39
  40 #define dprintk(fmt, arg...)    if (ir_debug) \
  41         printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
  42
  43 /* ---------------------------------------------------------------------- */
  44
  45 static IR_KEYTAB_TYPE flyvideo_codes[IR_KEYTAB_SIZE] = {
  46         [   15 ] = KEY_KP0,
  47         [    3 ] = KEY_KP1,
  48         [    4 ] = KEY_KP2,
  49         [    5 ] = KEY_KP3,
  50         [    7 ] = KEY_KP4,
  51         [    8 ] = KEY_KP5,
  52         [    9 ] = KEY_KP6,
  53         [   11 ] = KEY_KP7,
  54         [   12 ] = KEY_KP8,
  55         [   13 ] = KEY_KP9,
  56
  57         [   14 ] = KEY_TUNER,        // Air/Cable
  58         [   17 ] = KEY_VIDEO,        // Video
  59         [   21 ] = KEY_AUDIO,        // Audio
  60         [    0 ] = KEY_POWER,        // Pover
  61         [    2 ] = KEY_ZOOM,         // Fullscreen
  62         [   27 ] = KEY_MUTE,         // Mute
  63         [   20 ] = KEY_VOLUMEUP,
  64         [   23 ] = KEY_VOLUMEDOWN,
  65         [   18 ] = KEY_CHANNELUP,    // Channel +
  66         [   19 ] = KEY_CHANNELDOWN,  // Channel -
  67         [    6 ] = KEY_AGAIN,        // Recal
  68         [   16 ] = KEY_KPENTER,      // Enter
  69
  70 #if 1 /* FIXME */
  71         [   26 ] = KEY_F22,          // Stereo
  72         [   24 ] = KEY_EDIT,         // AV Source
  73 #endif
  74 };
  75
  76 static IR_KEYTAB_TYPE cinergy_codes[IR_KEYTAB_SIZE] = {
  77         [    0 ] = KEY_KP0,
  78         [    1 ] = KEY_KP1,
  79         [    2 ] = KEY_KP2,
  80         [    3 ] = KEY_KP3,
  81         [    4 ] = KEY_KP4,
  82         [    5 ] = KEY_KP5,
  83         [    6 ] = KEY_KP6,
  84         [    7 ] = KEY_KP7,
  85         [    8 ] = KEY_KP8,
  86         [    9 ] = KEY_KP9,
  87
  88         [ 0x0a ] = KEY_POWER,
  89         [ 0x0b ] = KEY_PROG1,           // app
  90         [ 0x0c ] = KEY_ZOOM,            // zoom/fullscreen
  91         [ 0x0d ] = KEY_CHANNELUP,       // channel
  92         [ 0x0e ] = KEY_CHANNELDOWN,     // channel-
  93         [ 0x0f ] = KEY_VOLUMEUP,
  94         [ 0x10 ] = KEY_VOLUMEDOWN,
  95         [ 0x11 ] = KEY_TUNER,           // AV
  96         [ 0x12 ] = KEY_NUMLOCK,         // -/--
  97         [ 0x13 ] = KEY_AUDIO,           // audio
  98         [ 0x14 ] = KEY_MUTE,
  99         [ 0x15 ] = KEY_UP,
 100         [ 0x16 ] = KEY_DOWN,
 101         [ 0x17 ] = KEY_LEFT,
 102         [ 0x18 ] = KEY_RIGHT,
 103         [ 0x19 ] = BTN_LEFT,
 104         [ 0x1a ] = BTN_RIGHT,
 105         [ 0x1b ] = KEY_WWW,             // text
 106         [ 0x1c ] = KEY_REWIND,
 107         [ 0x1d ] = KEY_FORWARD,
 108         [ 0x1e ] = KEY_RECORD,
 109         [ 0x1f ] = KEY_PLAY,
 110         [ 0x20 ] = KEY_PREVIOUSSONG,
 111         [ 0x21 ] = KEY_NEXTSONG,
 112         [ 0x22 ] = KEY_PAUSE,
 113         [ 0x23 ] = KEY_STOP,
 114 };
 115
 116 /* Alfons Geser <a.geser@cox.net>
 117  * updates from Job D. R. Borges <jobdrb@ig.com.br> */
 118 static IR_KEYTAB_TYPE eztv_codes[IR_KEYTAB_SIZE] = {
 119         [ 18 ] = KEY_POWER,
 120         [  1 ] = KEY_TV,             // DVR
 121         [ 21 ] = KEY_DVD,            // DVD
 122         [ 23 ] = KEY_AUDIO,          // music
 123                                      // DVR mode / DVD mode / music mode
 124
 125         [ 27 ] = KEY_MUTE,           // mute
 126         [  2 ] = KEY_LANGUAGE,       // MTS/SAP / audio / autoseek
 127         [ 30 ] = KEY_SUBTITLE,       // closed captioning / subtitle / seek
 128         [ 22 ] = KEY_ZOOM,           // full screen
 129         [ 28 ] = KEY_VIDEO,          // video source / eject / delall
 130         [ 29 ] = KEY_RESTART,        // playback / angle / del
 131         [ 47 ] = KEY_SEARCH,         // scan / menu / playlist
 132         [ 48 ] = KEY_CHANNEL,        // CH surfing / bookmark / memo
 133
 134         [ 49 ] = KEY_HELP,           // help
 135         [ 50 ] = KEY_MODE,           // num/memo
 136         [ 51 ] = KEY_ESC,            // cancel
 137
 138         [ 12 ] = KEY_UP,             // up
 139         [ 16 ] = KEY_DOWN,           // down
 140         [  8 ] = KEY_LEFT,           // left
 141         [  4 ] = KEY_RIGHT,          // right
 142         [  3 ] = KEY_SELECT,         // select
 143
 144         [ 31 ] = KEY_REWIND,         // rewind
 145         [ 32 ] = KEY_PLAYPAUSE,      // play/pause
 146         [ 41 ] = KEY_FORWARD,        // forward
 147         [ 20 ] = KEY_AGAIN,          // repeat
 148         [ 43 ] = KEY_RECORD,         // recording
 149         [ 44 ] = KEY_STOP,           // stop
 150         [ 45 ] = KEY_PLAY,           // play
 151         [ 46 ] = KEY_SHUFFLE,        // snapshot / shuffle
 152
 153         [  0 ] = KEY_KP0,
 154         [  5 ] = KEY_KP1,
 155         [  6 ] = KEY_KP2,
 156         [  7 ] = KEY_KP3,
 157         [  9 ] = KEY_KP4,
 158         [ 10 ] = KEY_KP5,
 159         [ 11 ] = KEY_KP6,
 160         [ 13 ] = KEY_KP7,
 161         [ 14 ] = KEY_KP8,
 162         [ 15 ] = KEY_KP9,
 163
 164         [ 42 ] = KEY_VOLUMEUP,
 165         [ 17 ] = KEY_VOLUMEDOWN,
 166         [ 24 ] = KEY_CHANNELUP,      // CH.tracking up
 167         [ 25 ] = KEY_CHANNELDOWN,    // CH.tracking down
 168
 169         [ 19 ] = KEY_KPENTER,        // enter
 170         [ 33 ] = KEY_KPDOT,          // . (decimal dot)
 171 };
 172
 173 static IR_KEYTAB_TYPE avacssmart_codes[IR_KEYTAB_SIZE] = {
 174         [ 30 ] = KEY_POWER,             // power
 175         [ 28 ] = KEY_SEARCH,            // scan
 176         [  7 ] = KEY_SELECT,            // source
 177
 178         [ 22 ] = KEY_VOLUMEUP,
 179         [ 20 ] = KEY_VOLUMEDOWN,
 180         [ 31 ] = KEY_CHANNELUP,
 181         [ 23 ] = KEY_CHANNELDOWN,
 182         [ 24 ] = KEY_MUTE,
 183
 184         [  2 ] = KEY_KP0,
 185         [  1 ] = KEY_KP1,
 186         [ 11 ] = KEY_KP2,
 187         [ 27 ] = KEY_KP3,
 188         [  5 ] = KEY_KP4,
 189         [  9 ] = KEY_KP5,
 190         [ 21 ] = KEY_KP6,
 191         [  6 ] = KEY_KP7,
 192         [ 10 ] = KEY_KP8,
 193         [ 18 ] = KEY_KP9,
 194         [ 16 ] = KEY_KPDOT,
 195
 196         [  3 ] = KEY_TUNER,             // tv/fm
 197         [  4 ] = KEY_REWIND,            // fm tuning left or function left
 198         [ 12 ] = KEY_FORWARD,           // fm tuning right or function right
 199
 200         [  0 ] = KEY_RECORD,
 201         [  8 ] = KEY_STOP,
 202         [ 17 ] = KEY_PLAY,
 203
 204         [ 25 ] = KEY_ZOOM,
 205         [ 14 ] = KEY_MENU,              // function
 206         [ 19 ] = KEY_AGAIN,             // recall
 207         [ 29 ] = KEY_RESTART,           // reset
 208
 209 // FIXME
 210         [ 13 ] = KEY_F21,               // mts
 211         [ 15 ] = KEY_F22,               // min
 212         [ 26 ] = KEY_F23,               // freeze
 213 };
 214
 215 /* Alex Hermann <gaaf@gmx.net> */
 216 static IR_KEYTAB_TYPE md2819_codes[IR_KEYTAB_SIZE] = {
 217         [ 40 ] = KEY_KP1,
 218         [ 24 ] = KEY_KP2,
 219         [ 56 ] = KEY_KP3,
 220         [ 36 ] = KEY_KP4,
 221         [ 20 ] = KEY_KP5,
 222         [ 52 ] = KEY_KP6,
 223         [ 44 ] = KEY_KP7,
 224         [ 28 ] = KEY_KP8,
 225         [ 60 ] = KEY_KP9,
 226         [ 34 ] = KEY_KP0,
 227
 228         [ 32 ] = KEY_TV,                // TV/FM
 229         [ 16 ] = KEY_CD,                // CD
 230         [ 48 ] = KEY_TEXT,              // TELETEXT
 231         [  0 ] = KEY_POWER,             // POWER
 232
 233         [  8 ] = KEY_VIDEO,             // VIDEO
 234         [  4 ] = KEY_AUDIO,             // AUDIO
 235         [ 12 ] = KEY_ZOOM,              // FULL SCREEN
 236
 237         [ 18 ] = KEY_SUBTITLE,          // DISPLAY      - ???
 238         [ 50 ] = KEY_REWIND,            // LOOP         - ???
 239         [  2 ] = KEY_PRINT,             // PREVIEW      - ???
 240
 241         [ 42 ] = KEY_SEARCH,            // AUTOSCAN
 242         [ 26 ] = KEY_SLEEP,             // FREEZE       - ???
 243         [ 58 ] = KEY_SHUFFLE,           // SNAPSHOT     - ???
 244         [ 10 ] = KEY_MUTE,              // MUTE
 245
 246         [ 38 ] = KEY_RECORD,            // RECORD
 247         [ 22 ] = KEY_PAUSE,             // PAUSE
 248         [ 54 ] = KEY_STOP,              // STOP
 249         [  6 ] = KEY_PLAY,              // PLAY
 250
 251         [ 46 ] = KEY_RED,               // <RED>
 252         [ 33 ] = KEY_GREEN,             // <GREEN>
 253         [ 14 ] = KEY_YELLOW,            // <YELLOW>
 254         [  1 ] = KEY_BLUE,              // <BLUE>
 255
 256         [ 30 ] = KEY_VOLUMEDOWN,        // VOLUME-
 257         [ 62 ] = KEY_VOLUMEUP,          // VOLUME+
 258         [ 17 ] = KEY_CHANNELDOWN,       // CHANNEL/PAGE-
 259         [ 49 ] = KEY_CHANNELUP          // CHANNEL/PAGE+
 260 };
 261 /* ---------------------------------------------------------------------- */
 262
 263 static int build_key(struct saa7134_dev *dev)
 264 {
 265         struct saa7134_ir *ir = dev->remote;
 266         u32 gpio, data;
 267
 268         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 269         saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
 270         saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
 271
 272         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 273         if (ir->polling) {
 274                 if (ir->last_gpio == gpio)
 275                         return 0;
 276                 ir->last_gpio = gpio;
 277         }
 278
 279         data = ir_extract_bits(gpio, ir->mask_keycode);
 280         dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
 281                 gpio, ir->mask_keycode, data);
 282
 283         if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 284             (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 285                 ir_input_keydown(&ir->dev,&ir->ir,data,data);
 286         } else {
 287                 ir_input_nokey(&ir->dev,&ir->ir);
 288         }
 289         return 0;
 290 }
 291
 292 /* ---------------------------------------------------------------------- */
 293
 294 void saa7134_input_irq(struct saa7134_dev *dev)
 295 {
 296         struct saa7134_ir *ir = dev->remote;
 297
 298         if (!ir->polling)
 299                 build_key(dev);
 300 }
 301
 302 static void saa7134_input_timer(unsigned long data)
 303 {
 304         struct saa7134_dev *dev = (struct saa7134_dev*)data;
 305         struct saa7134_ir *ir = dev->remote;
 306         unsigned long timeout;
 307
 308         build_key(dev);
 309         timeout = jiffies + (ir->polling * HZ / 1000);
 310         mod_timer(&ir->timer, timeout);
 311 }
 312
 313 int saa7134_input_init1(struct saa7134_dev *dev)
 314 {
 315         struct saa7134_ir *ir;
 316         IR_KEYTAB_TYPE *ir_codes = NULL;
 317         u32 mask_keycode = 0;
 318         u32 mask_keydown = 0;
 319         u32 mask_keyup   = 0;
 320         int polling      = 0;
 321         int ir_type      = IR_TYPE_OTHER;
 322
 323         if (!dev->has_remote)
 324                 return -ENODEV;
 325         if (disable_ir)
 326                 return -ENODEV;
 327
 328         /* detect & configure */
 329         switch (dev->board) {
 330         case SAA7134_BOARD_FLYVIDEO2000:
 331         case SAA7134_BOARD_FLYVIDEO3000:
 332                 ir_codes     = flyvideo_codes;
 333                 mask_keycode = 0xEC00000;
 334                 mask_keydown = 0x0040000;
 335                 break;
 336         case SAA7134_BOARD_CINERGY400:
 337         case SAA7134_BOARD_CINERGY600:
 338                 ir_codes     = cinergy_codes;
 339                 mask_keycode = 0x00003f;
 340                 mask_keyup   = 0x040000;
 341                 break;
 342         case SAA7134_BOARD_ECS_TVP3XP:
 343         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
 344                 ir_codes     = eztv_codes;
 345                 mask_keycode = 0x00017c;
 346                 mask_keyup   = 0x000002;
 347                 polling      = 50; // ms
 348                 break;
 349         case SAA7134_BOARD_AVACSSMARTTV:
 350                 ir_codes     = avacssmart_codes;
 351                 mask_keycode = 0x00001F;
 352                 mask_keyup   = 0x000020;
 353                 polling      = 50; // ms
 354                 break;
 355         case SAA7134_BOARD_MD2819:
 356         case SAA7134_BOARD_AVERMEDIA_307:
 357                 ir_codes     = md2819_codes;
 358                 mask_keycode = 0x0007C8;
 359                 mask_keydown = 0x000010;
 360                 polling      = 50; // ms
 361                 /* Set GPIO pin2 to high to enable the IR controller */
 362                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
 363                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
 364                 break;
 365         }
 366         if (NULL == ir_codes) {
 367                 printk("%s: Oops: IR config error [card=%d]\n",
 368                        dev->name, dev->board);
 369                 return -ENODEV;
 370         }
 371
 372         ir = kmalloc(sizeof(*ir),GFP_KERNEL);
 373         if (NULL == ir)
 374                 return -ENOMEM;
 375         memset(ir,0,sizeof(*ir));
 376
 377         /* init hardware-specific stuff */
 378         ir->mask_keycode = mask_keycode;
 379         ir->mask_keydown = mask_keydown;
 380         ir->mask_keyup   = mask_keyup;
 381         ir->polling      = polling;
 382
 383         /* init input device */
 384         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
 385                  saa7134_boards[dev->board].name);
 386         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
 387                  pci_name(dev->pci));
 388
 389         ir_input_init(&ir->dev, &ir->ir, ir_type, ir_codes);
 390         ir->dev.name = ir->name;
 391         ir->dev.phys = ir->phys;
 392         ir->dev.id.bustype = BUS_PCI;
 393         ir->dev.id.version = 1;
 394         if (dev->pci->subsystem_vendor) {
 395                 ir->dev.id.vendor  = dev->pci->subsystem_vendor;
 396                 ir->dev.id.product = dev->pci->subsystem_device;
 397         } else {
 398                 ir->dev.id.vendor  = dev->pci->vendor;
 399                 ir->dev.id.product = dev->pci->device;
 400         }
 401
 402         /* all done */
 403         dev->remote = ir;
 404         if (ir->polling) {
 405                 init_timer(&ir->timer);
 406                 ir->timer.function = saa7134_input_timer;
 407                 ir->timer.data     = (unsigned long)dev;
 408                 ir->timer.expires  = jiffies + HZ;
 409                 add_timer(&ir->timer);
 410         }
 411
 412         input_register_device(&dev->remote->dev);
 413         printk("%s: registered input device for IR\n",dev->name);
 414         return 0;
 415 }
 416
 417 void saa7134_input_fini(struct saa7134_dev *dev)
 418 {
 419         if (NULL == dev->remote)
 420                 return;
 421
 422         input_unregister_device(&dev->remote->dev);
 423         if (dev->remote->polling)
 424                 del_timer_sync(&dev->remote->timer);
 425         kfree(dev->remote);
 426         dev->remote = NULL;
 427 }
 428
 429 /* ----------------------------------------------------------------------
 430  * Local variables:
 431  * c-basic-offset: 8
 432  * End:
 433  */