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
  27 #include "saa7134-reg.h"
  28 #include "saa7134.h"
  29
  30 static unsigned int disable_ir;
  31 module_param(disable_ir, int, 0444);
  32 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
  33
  34 static unsigned int ir_debug;
  35 module_param(ir_debug, int, 0644);
  36 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
  37
  38 static int pinnacle_remote;
  39 module_param(pinnacle_remote, int, 0644);    /* Choose Pinnacle PCTV remote */
  40 MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
  41
  42 static int ir_rc5_remote_gap = 885;
  43 module_param(ir_rc5_remote_gap, int, 0644);
  44 static int ir_rc5_key_timeout = 115;
  45 module_param(ir_rc5_key_timeout, int, 0644);
  46
  47 static int repeat_delay = 500;
  48 module_param(repeat_delay, int, 0644);
  49 MODULE_PARM_DESC(repeat_delay, "delay before key repeat started");
  50 static int repeat_period = 33;
  51 module_param(repeat_period, int, 0644);
  52 MODULE_PARM_DESC(repeat_period, "repeat period between "
  53     "keypresses when key is down");
  54
  55 static unsigned int disable_other_ir;
  56 module_param(disable_other_ir, int, 0644);
  57 MODULE_PARM_DESC(disable_other_ir, "disable full codes of "
  58     "alternative remotes from other manufacturers");
  59
  60 #define dprintk(fmt, arg...)    if (ir_debug) \
  61         printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
  62 #define i2cdprintk(fmt, arg...)    if (ir_debug) \
  63         printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg)
  64
  65 /** rc5 functions */
  66 static int saa7134_rc5_irq(struct saa7134_dev *dev);
  67
  68 /* -------------------- GPIO generic keycode builder -------------------- */
  69
  70 static int build_key(struct saa7134_dev *dev)
  71 {
  72         struct card_ir *ir = dev->remote;
  73         u32 gpio, data;
  74
  75         /* here comes the additional handshake steps for some cards */
  76         switch (dev->board) {
  77         case SAA7134_BOARD_GOTVIEW_7135:
  78                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
  79                 saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
  80                 break;
  81         }
  82         /* rising SAA7134_GPIO_GPRESCAN reads the status */
  83         saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  84         saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  85
  86         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
  87         if (ir->polling) {
  88                 if (ir->last_gpio == gpio)
  89                         return 0;
  90                 ir->last_gpio = gpio;
  91         }
  92
  93         data = ir_extract_bits(gpio, ir->mask_keycode);
  94         dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
  95                 gpio, ir->mask_keycode, data);
  96
  97         if (ir->polling) {
  98                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
  99                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 100                         ir_input_keydown(ir->dev, &ir->ir, data, data);
 101                 } else {
 102                         ir_input_nokey(ir->dev, &ir->ir);
 103                 }
 104         }
 105         else {  /* IRQ driven mode - handle key press and release in one go */
 106                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
 107                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
 108                         ir_input_keydown(ir->dev, &ir->ir, data, data);
 109                         ir_input_nokey(ir->dev, &ir->ir);
 110                 }
 111         }
 112
 113         return 0;
 114 }
 115
 116 /* --------------------- Chip specific I2C key builders ----------------- */
 117
 118 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 119 {
 120         unsigned char b;
 121
 122         /* poll IR chip */
 123         if (1 != i2c_master_recv(&ir->c,&b,1)) {
 124                 i2cdprintk("read error\n");
 125                 return -EIO;
 126         }
 127
 128         /* no button press */
 129         if (b==0)
 130                 return 0;
 131
 132         /* repeating */
 133         if (b & 0x80)
 134                 return 1;
 135
 136         *ir_key = b;
 137         *ir_raw = b;
 138         return 1;
 139 }
 140
 141 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 142 {
 143         unsigned char buf[5], cod4, code3, code4;
 144
 145         /* poll IR chip */
 146         if (5 != i2c_master_recv(&ir->c,buf,5))
 147                 return -EIO;
 148
 149         cod4    = buf[4];
 150         code4   = (cod4 >> 2);
 151         code3   = buf[3];
 152         if (code3 == 0)
 153                 /* no key pressed */
 154                 return 0;
 155
 156         /* return key */
 157         *ir_key = code4;
 158         *ir_raw = code4;
 159         return 1;
 160 }
 161
 162
 163 static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 164 {
 165         unsigned char data[12];
 166         u32 gpio;
 167
 168         struct saa7134_dev *dev = ir->c.adapter->algo_data;
 169
 170         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 171         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 172         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 173
 174         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
 175
 176         if (0x400000 & ~gpio)
 177                 return 0; /* No button press */
 178
 179         ir->c.addr = 0x5a >> 1;
 180
 181         if (12 != i2c_master_recv(&ir->c, data, 12)) {
 182                 i2cdprintk("read error\n");
 183                 return -EIO;
 184         }
 185         /* IR of this card normally decode signals NEC-standard from
 186          * - Sven IHOO MT 5.1R remote. xxyye718
 187          * - Sven DVD HD-10xx remote. xxyyf708
 188          * - BBK ...
 189          * - mayby others
 190          * So, skip not our, if disable full codes mode.
 191          */
 192         if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
 193                 return 0;
 194
 195         *ir_key = data[9];
 196         *ir_raw = data[9];
 197
 198         return 1;
 199 }
 200
 201 /* Common (grey or coloured) pinnacle PCTV remote handling
 202  *
 203  */
 204 static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
 205                             int parity_offset, int marker, int code_modulo)
 206 {
 207         unsigned char b[4];
 208         unsigned int start = 0,parity = 0,code = 0;
 209
 210         /* poll IR chip */
 211         if (4 != i2c_master_recv(&ir->c, b, 4)) {
 212                 i2cdprintk("read error\n");
 213                 return -EIO;
 214         }
 215
 216         for (start = 0; start < ARRAY_SIZE(b); start++) {
 217                 if (b[start] == marker) {
 218                         code=b[(start+parity_offset + 1) % 4];
 219                         parity=b[(start+parity_offset) % 4];
 220                 }
 221         }
 222
 223         /* Empty Request */
 224         if (parity == 0)
 225                 return 0;
 226
 227         /* Repeating... */
 228         if (ir->old == parity)
 229                 return 0;
 230
 231         ir->old = parity;
 232
 233         /* drop special codes when a key is held down a long time for the grey controller
 234            In this case, the second bit of the code is asserted */
 235         if (marker == 0xfe && (code & 0x40))
 236                 return 0;
 237
 238         code %= code_modulo;
 239
 240         *ir_raw = code;
 241         *ir_key = code;
 242
 243         i2cdprintk("Pinnacle PCTV key %02x\n", code);
 244
 245         return 1;
 246 }
 247
 248 /* The grey pinnacle PCTV remote
 249  *
 250  *  There are one issue with this remote:
 251  *   - I2c packet does not change when the same key is pressed quickly. The workaround
 252  *     is to hold down each key for about half a second, so that another code is generated
 253  *     in the i2c packet, and the function can distinguish key presses.
 254  *
 255  * Sylvain Pasche <sylvain.pasche@gmail.com>
 256  */
 257 static int get_key_pinnacle_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 258 {
 259
 260         return get_key_pinnacle(ir, ir_key, ir_raw, 1, 0xfe, 0xff);
 261 }
 262
 263
 264 /* The new pinnacle PCTV remote (with the colored buttons)
 265  *
 266  * Ricardo Cerqueira <v4l@cerqueira.org>
 267  */
 268 static int get_key_pinnacle_color(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 269 {
 270         /* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
 271          *
 272          * this is the only value that results in 42 unique
 273          * codes < 128
 274          */
 275
 276         return get_key_pinnacle(ir, ir_key, ir_raw, 2, 0x80, 0x88);
 277 }
 278
 279 void saa7134_input_irq(struct saa7134_dev *dev)
 280 {
 281         struct card_ir *ir = dev->remote;
 282
 283         if (!ir->polling && !ir->rc5_gpio) {
 284                 build_key(dev);
 285         } else if (ir->rc5_gpio) {
 286                 saa7134_rc5_irq(dev);
 287         }
 288 }
 289
 290 static void saa7134_input_timer(unsigned long data)
 291 {
 292         struct saa7134_dev *dev = (struct saa7134_dev *)data;
 293         struct card_ir *ir = dev->remote;
 294
 295         build_key(dev);
 296         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
 297 }
 298
 299 void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
 300 {
 301         if (ir->polling) {
 302                 setup_timer(&ir->timer, saa7134_input_timer,
 303                             (unsigned long)dev);
 304                 ir->timer.expires  = jiffies + HZ;
 305                 add_timer(&ir->timer);
 306         } else if (ir->rc5_gpio) {
 307                 /* set timer_end for code completion */
 308                 init_timer(&ir->timer_end);
 309                 ir->timer_end.function = ir_rc5_timer_end;
 310                 ir->timer_end.data = (unsigned long)ir;
 311                 init_timer(&ir->timer_keyup);
 312                 ir->timer_keyup.function = ir_rc5_timer_keyup;
 313                 ir->timer_keyup.data = (unsigned long)ir;
 314                 ir->shift_by = 2;
 315                 ir->start = 0x2;
 316                 ir->addr = 0x17;
 317                 ir->rc5_key_timeout = ir_rc5_key_timeout;
 318                 ir->rc5_remote_gap = ir_rc5_remote_gap;
 319         }
 320 }
 321
 322 void saa7134_ir_stop(struct saa7134_dev *dev)
 323 {
 324         if (dev->remote->polling)
 325                 del_timer_sync(&dev->remote->timer);
 326 }
 327
 328 int saa7134_input_init1(struct saa7134_dev *dev)
 329 {
 330         struct card_ir *ir;
 331         struct input_dev *input_dev;
 332         IR_KEYTAB_TYPE *ir_codes = NULL;
 333         u32 mask_keycode = 0;
 334         u32 mask_keydown = 0;
 335         u32 mask_keyup   = 0;
 336         int polling      = 0;
 337         int rc5_gpio     = 0;
 338         int ir_type      = IR_TYPE_OTHER;
 339         int err;
 340
 341         if (dev->has_remote != SAA7134_REMOTE_GPIO)
 342                 return -ENODEV;
 343         if (disable_ir)
 344                 return -ENODEV;
 345
 346         /* detect & configure */
 347         switch (dev->board) {
 348         case SAA7134_BOARD_FLYVIDEO2000:
 349         case SAA7134_BOARD_FLYVIDEO3000:
 350         case SAA7134_BOARD_FLYTVPLATINUM_FM:
 351         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
 352                 ir_codes     = ir_codes_flyvideo;
 353                 mask_keycode = 0xEC00000;
 354                 mask_keydown = 0x0040000;
 355                 break;
 356         case SAA7134_BOARD_CINERGY400:
 357         case SAA7134_BOARD_CINERGY600:
 358         case SAA7134_BOARD_CINERGY600_MK3:
 359                 ir_codes     = ir_codes_cinergy;
 360                 mask_keycode = 0x00003f;
 361                 mask_keyup   = 0x040000;
 362                 break;
 363         case SAA7134_BOARD_ECS_TVP3XP:
 364         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
 365                 ir_codes     = ir_codes_eztv;
 366                 mask_keycode = 0x00017c;
 367                 mask_keyup   = 0x000002;
 368                 polling      = 50; // ms
 369                 break;
 370         case SAA7134_BOARD_KWORLD_XPERT:
 371         case SAA7134_BOARD_AVACSSMARTTV:
 372                 ir_codes     = ir_codes_pixelview;
 373                 mask_keycode = 0x00001F;
 374                 mask_keyup   = 0x000020;
 375                 polling      = 50; // ms
 376                 break;
 377         case SAA7134_BOARD_MD2819:
 378         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
 379         case SAA7134_BOARD_AVERMEDIA_305:
 380         case SAA7134_BOARD_AVERMEDIA_307:
 381         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
 382         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
 383         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
 384         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
 385         case SAA7134_BOARD_AVERMEDIA_M102:
 386                 ir_codes     = ir_codes_avermedia;
 387                 mask_keycode = 0x0007C8;
 388                 mask_keydown = 0x000010;
 389                 polling      = 50; // ms
 390                 /* Set GPIO pin2 to high to enable the IR controller */
 391                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
 392                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
 393                 break;
 394         case SAA7134_BOARD_AVERMEDIA_777:
 395         case SAA7134_BOARD_AVERMEDIA_A16AR:
 396                 ir_codes     = ir_codes_avermedia;
 397                 mask_keycode = 0x02F200;
 398                 mask_keydown = 0x000400;
 399                 polling      = 50; // ms
 400                 /* Without this we won't receive key up events */
 401                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 402                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 403                 break;
 404         case SAA7134_BOARD_AVERMEDIA_A16D:
 405                 ir_codes     = ir_codes_avermedia_a16d;
 406                 mask_keycode = 0x02F200;
 407                 mask_keydown = 0x000400;
 408                 polling      = 50; /* ms */
 409                 /* Without this we won't receive key up events */
 410                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
 411                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
 412                 break;
 413         case SAA7134_BOARD_KWORLD_TERMINATOR:
 414                 ir_codes     = ir_codes_pixelview;
 415                 mask_keycode = 0x00001f;
 416                 mask_keyup   = 0x000060;
 417                 polling      = 50; // ms
 418                 break;
 419         case SAA7134_BOARD_MANLI_MTV001:
 420         case SAA7134_BOARD_MANLI_MTV002:
 421                 ir_codes     = ir_codes_manli;
 422                 mask_keycode = 0x001f00;
 423                 mask_keyup   = 0x004000;
 424                 polling      = 50; /* ms */
 425                 break;
 426         case SAA7134_BOARD_BEHOLD_409FM:
 427         case SAA7134_BOARD_BEHOLD_401:
 428         case SAA7134_BOARD_BEHOLD_403:
 429         case SAA7134_BOARD_BEHOLD_403FM:
 430         case SAA7134_BOARD_BEHOLD_405:
 431         case SAA7134_BOARD_BEHOLD_405FM:
 432         case SAA7134_BOARD_BEHOLD_407:
 433         case SAA7134_BOARD_BEHOLD_407FM:
 434         case SAA7134_BOARD_BEHOLD_409:
 435         case SAA7134_BOARD_BEHOLD_505FM:
 436         case SAA7134_BOARD_BEHOLD_507_9FM:
 437                 ir_codes     = ir_codes_manli;
 438                 mask_keycode = 0x003f00;
 439                 mask_keyup   = 0x004000;
 440                 polling      = 50; /* ms */
 441                 break;
 442         case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
 443                 ir_codes     = ir_codes_behold_columbus;
 444                 mask_keycode = 0x003f00;
 445                 mask_keyup   = 0x004000;
 446                 polling      = 50; // ms
 447                 break;
 448         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
 449                 ir_codes     = ir_codes_pctv_sedna;
 450                 mask_keycode = 0x001f00;
 451                 mask_keyup   = 0x004000;
 452                 polling      = 50; // ms
 453                 break;
 454         case SAA7134_BOARD_GOTVIEW_7135:
 455                 ir_codes     = ir_codes_gotview7135;
 456                 mask_keycode = 0x0003CC;
 457                 mask_keydown = 0x000010;
 458                 polling      = 5; /* ms */
 459                 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
 460                 break;
 461         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
 462         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
 463         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
 464                 ir_codes     = ir_codes_videomate_tv_pvr;
 465                 mask_keycode = 0x00003F;
 466                 mask_keyup   = 0x400000;
 467                 polling      = 50; // ms
 468                 break;
 469         case SAA7134_BOARD_PROTEUS_2309:
 470                 ir_codes     = ir_codes_proteus_2309;
 471                 mask_keycode = 0x00007F;
 472                 mask_keyup   = 0x000080;
 473                 polling      = 50; // ms
 474                 break;
 475         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
 476         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
 477                 ir_codes     = ir_codes_videomate_tv_pvr;
 478                 mask_keycode = 0x003F00;
 479                 mask_keyup   = 0x040000;
 480                 break;
 481         case SAA7134_BOARD_FLYDVBS_LR300:
 482         case SAA7134_BOARD_FLYDVBT_LR301:
 483         case SAA7134_BOARD_FLYDVBTDUO:
 484                 ir_codes     = ir_codes_flydvb;
 485                 mask_keycode = 0x0001F00;
 486                 mask_keydown = 0x0040000;
 487                 break;
 488         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
 489         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
 490        case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
 491                 ir_codes     = ir_codes_asus_pc39;
 492                 mask_keydown = 0x0040000;
 493                 rc5_gpio = 1;
 494                 break;
 495         case SAA7134_BOARD_ENCORE_ENLTV:
 496         case SAA7134_BOARD_ENCORE_ENLTV_FM:
 497                 ir_codes     = ir_codes_encore_enltv;
 498                 mask_keycode = 0x00007f;
 499                 mask_keyup   = 0x040000;
 500                 polling      = 50; // ms
 501                 break;
 502         case SAA7134_BOARD_10MOONSTVMASTER3:
 503                 ir_codes     = ir_codes_encore_enltv;
 504                 mask_keycode = 0x5f80000;
 505                 mask_keyup   = 0x8000000;
 506                 polling      = 50; //ms
 507                 break;
 508         case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
 509                 ir_codes     = ir_codes_genius_tvgo_a11mce;
 510                 mask_keycode = 0xff;
 511                 mask_keydown = 0xf00000;
 512                 polling = 50; /* ms */
 513                 break;
 514         }
 515         if (NULL == ir_codes) {
 516                 printk("%s: Oops: IR config error [card=%d]\n",
 517                        dev->name, dev->board);
 518                 return -ENODEV;
 519         }
 520
 521         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 522         input_dev = input_allocate_device();
 523         if (!ir || !input_dev) {
 524                 err = -ENOMEM;
 525                 goto err_out_free;
 526         }
 527
 528         ir->dev = input_dev;
 529
 530         /* init hardware-specific stuff */
 531         ir->mask_keycode = mask_keycode;
 532         ir->mask_keydown = mask_keydown;
 533         ir->mask_keyup   = mask_keyup;
 534         ir->polling      = polling;
 535         ir->rc5_gpio     = rc5_gpio;
 536
 537         /* init input device */
 538         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
 539                  saa7134_boards[dev->board].name);
 540         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
 541                  pci_name(dev->pci));
 542
 543         ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
 544         input_dev->name = ir->name;
 545         input_dev->phys = ir->phys;
 546         input_dev->id.bustype = BUS_PCI;
 547         input_dev->id.version = 1;
 548         if (dev->pci->subsystem_vendor) {
 549                 input_dev->id.vendor  = dev->pci->subsystem_vendor;
 550                 input_dev->id.product = dev->pci->subsystem_device;
 551         } else {
 552                 input_dev->id.vendor  = dev->pci->vendor;
 553                 input_dev->id.product = dev->pci->device;
 554         }
 555         input_dev->dev.parent = &dev->pci->dev;
 556
 557         dev->remote = ir;
 558         saa7134_ir_start(dev, ir);
 559
 560         err = input_register_device(ir->dev);
 561         if (err)
 562                 goto err_out_stop;
 563
 564         /* the remote isn't as bouncy as a keyboard */
 565         ir->dev->rep[REP_DELAY] = repeat_delay;
 566         ir->dev->rep[REP_PERIOD] = repeat_period;
 567
 568         return 0;
 569
 570  err_out_stop:
 571         saa7134_ir_stop(dev);
 572         dev->remote = NULL;
 573  err_out_free:
 574         input_free_device(input_dev);
 575         kfree(ir);
 576         return err;
 577 }
 578
 579 void saa7134_input_fini(struct saa7134_dev *dev)
 580 {
 581         if (NULL == dev->remote)
 582                 return;
 583
 584         saa7134_ir_stop(dev);
 585         input_unregister_device(dev->remote->dev);
 586         kfree(dev->remote);
 587         dev->remote = NULL;
 588 }
 589
 590 void saa7134_set_i2c_ir(struct saa7134_dev *dev, struct IR_i2c *ir)
 591 {
 592         if (disable_ir) {
 593                 dprintk("Found supported i2c remote, but IR has been disabled\n");
 594                 ir->get_key=NULL;
 595                 return;
 596         }
 597
 598         switch (dev->board) {
 599         case SAA7134_BOARD_PINNACLE_PCTV_110i:
 600         case SAA7134_BOARD_PINNACLE_PCTV_310i:
 601                 snprintf(ir->c.name, sizeof(ir->c.name), "Pinnacle PCTV");
 602                 if (pinnacle_remote == 0) {
 603                         ir->get_key   = get_key_pinnacle_color;
 604                         ir->ir_codes = ir_codes_pinnacle_color;
 605                 } else {
 606                         ir->get_key   = get_key_pinnacle_grey;
 607                         ir->ir_codes = ir_codes_pinnacle_grey;
 608                 }
 609                 break;
 610         case SAA7134_BOARD_UPMOST_PURPLE_TV:
 611                 snprintf(ir->c.name, sizeof(ir->c.name), "Purple TV");
 612                 ir->get_key   = get_key_purpletv;
 613                 ir->ir_codes  = ir_codes_purpletv;
 614                 break;
 615         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
 616                 snprintf(ir->c.name, sizeof(ir->c.name), "HVR 1110");
 617                 ir->get_key   = get_key_hvr1110;
 618                 ir->ir_codes  = ir_codes_hauppauge_new;
 619                 break;
 620         case SAA7134_BOARD_BEHOLD_607_9FM:
 621         case SAA7134_BOARD_BEHOLD_M6:
 622         case SAA7134_BOARD_BEHOLD_M63:
 623         case SAA7134_BOARD_BEHOLD_M6_EXTRA:
 624         case SAA7134_BOARD_BEHOLD_H6:
 625                 snprintf(ir->c.name, sizeof(ir->c.name), "BeholdTV");
 626                 ir->get_key   = get_key_beholdm6xx;
 627                 ir->ir_codes  = ir_codes_behold;
 628                 break;
 629         default:
 630                 dprintk("Shouldn't get here: Unknown board %x for I2C IR?\n",dev->board);
 631                 break;
 632         }
 633
 634 }
 635
 636 static int saa7134_rc5_irq(struct saa7134_dev *dev)
 637 {
 638         struct card_ir *ir = dev->remote;
 639         struct timeval tv;
 640         u32 gap;
 641         unsigned long current_jiffies, timeout;
 642
 643         /* get time of bit */
 644         current_jiffies = jiffies;
 645         do_gettimeofday(&tv);
 646
 647         /* avoid overflow with gap >1s */
 648         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
 649                 gap = 200000;
 650         } else {
 651                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
 652                     tv.tv_usec - ir->base_time.tv_usec;
 653         }
 654
 655         /* active code => add bit */
 656         if (ir->active) {
 657                 /* only if in the code (otherwise spurious IRQ or timer
 658                    late) */
 659                 if (ir->last_bit < 28) {
 660                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
 661                             ir_rc5_remote_gap;
 662                         ir->code |= 1 << ir->last_bit;
 663                 }
 664                 /* starting new code */
 665         } else {
 666                 ir->active = 1;
 667                 ir->code = 0;
 668                 ir->base_time = tv;
 669                 ir->last_bit = 0;
 670
 671                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
 672                 mod_timer(&ir->timer_end, timeout);
 673         }
 674
 675         return 1;
 676 }
 677
 678 /* ----------------------------------------------------------------------
 679  * Local variables:
 680  * c-basic-offset: 8
 681  * End:
 682  */