drivers/media/pci/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/hrtimer.h>
  27 #include <linux/pci.h>
  28 #include <linux/slab.h>
  29 #include <linux/module.h>
  30
  31 #include "cx88.h"
  32 #include <media/rc-core.h>
  33
  34 #define MODULE_NAME "cx88xx"
  35
  36 /* ---------------------------------------------------------------------- */
  37
  38 struct cx88_IR {
  39         struct cx88_core *core;
  40         struct rc_dev *dev;
  41
  42         int users;
  43
  44         char name[32];
  45         char phys[32];
  46
  47         /* sample from gpio pin 16 */
  48         u32 sampling;
  49
  50         /* poll external decoder */
  51         int polling;
  52         struct hrtimer timer;
  53         u32 gpio_addr;
  54         u32 last_gpio;
  55         u32 mask_keycode;
  56         u32 mask_keydown;
  57         u32 mask_keyup;
  58 };
  59
  60 static unsigned ir_samplerate = 4;
  61 module_param(ir_samplerate, uint, 0444);
  62 MODULE_PARM_DESC(ir_samplerate, "IR samplerate in kHz, 1 - 20, default 4");
  63
  64 static int ir_debug;
  65 module_param(ir_debug, int, 0644);      /* debug level [IR] */
  66 MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
  67
  68 #define ir_dprintk(fmt, arg...) if (ir_debug) \
  69         printk(KERN_DEBUG "%s IR: " fmt , ir->core->name , ##arg)
  70
  71 #define dprintk(fmt, arg...)    if (ir_debug) \
  72         printk(KERN_DEBUG "cx88 IR: " fmt , ##arg)
  73
  74 /* ---------------------------------------------------------------------- */
  75
  76 static void cx88_ir_handle_key(struct cx88_IR *ir)
  77 {
  78         struct cx88_core *core = ir->core;
  79         u32 gpio, data, auxgpio;
  80
  81         /* read gpio value */
  82         gpio = cx_read(ir->gpio_addr);
  83         switch (core->boardnr) {
  84         case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
  85                 /* This board apparently uses a combination of 2 GPIO
  86                    to represent the keys. Additionally, the second GPIO
  87                    can be used for parity.
  88
  89                    Example:
  90
  91                    for key "5"
  92                         gpio = 0x758, auxgpio = 0xe5 or 0xf5
  93                    for key "Power"
  94                         gpio = 0x758, auxgpio = 0xed or 0xfd
  95                  */
  96
  97                 auxgpio = cx_read(MO_GP1_IO);
  98                 /* Take out the parity part */
  99                 gpio=(gpio & 0x7fd) + (auxgpio & 0xef);
 100                 break;
 101         case CX88_BOARD_WINFAST_DTV1000:
 102         case CX88_BOARD_WINFAST_DTV1800H:
 103         case CX88_BOARD_WINFAST_DTV1800H_XC4000:
 104         case CX88_BOARD_WINFAST_DTV2000H_PLUS:
 105         case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
 106         case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36:
 107         case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43:
 108                 gpio = (gpio & 0x6ff) | ((cx_read(MO_GP1_IO) << 8) & 0x900);
 109                 auxgpio = gpio;
 110                 break;
 111         default:
 112                 auxgpio = gpio;
 113         }
 114         if (ir->polling) {
 115                 if (ir->last_gpio == auxgpio)
 116                         return;
 117                 ir->last_gpio = auxgpio;
 118         }
 119
 120         /* extract data */
 121         data = ir_extract_bits(gpio, ir->mask_keycode);
 122         ir_dprintk("irq gpio=0x%x code=%d | %s%s%s\n",
 123                    gpio, data,
 124                    ir->polling ? "poll" : "irq",
 125                    (gpio & ir->mask_keydown) ? " down" : "",
 126                    (gpio & ir->mask_keyup) ? " up" : "");
 127
 128         if (ir->core->boardnr == CX88_BOARD_NORWOOD_MICRO) {
 129                 u32 gpio_key = cx_read(MO_GP0_IO);
 130
 131                 data = (data << 4) | ((gpio_key & 0xf0) >> 4);
 132
 133                 rc_keydown(ir->dev, data, 0);
 134
 135         } else if (ir->mask_keydown) {
 136                 /* bit set on keydown */
 137                 if (gpio & ir->mask_keydown)
 138                         rc_keydown_notimeout(ir->dev, data, 0);
 139                 else
 140                         rc_keyup(ir->dev);
 141
 142         } else if (ir->mask_keyup) {
 143                 /* bit cleared on keydown */
 144                 if (0 == (gpio & ir->mask_keyup))
 145                         rc_keydown_notimeout(ir->dev, data, 0);
 146                 else
 147                         rc_keyup(ir->dev);
 148
 149         } else {
 150                 /* can't distinguish keydown/up :-/ */
 151                 rc_keydown_notimeout(ir->dev, data, 0);
 152                 rc_keyup(ir->dev);
 153         }
 154 }
 155
 156 static enum hrtimer_restart cx88_ir_work(struct hrtimer *timer)
 157 {
 158         unsigned long missed;
 159         struct cx88_IR *ir = container_of(timer, struct cx88_IR, timer);
 160
 161         cx88_ir_handle_key(ir);
 162         missed = hrtimer_forward_now(&ir->timer,
 163                                      ktime_set(0, ir->polling * 1000000));
 164         if (missed > 1)
 165                 ir_dprintk("Missed ticks %ld\n", missed - 1);
 166
 167         return HRTIMER_RESTART;
 168 }
 169
 170 static int __cx88_ir_start(void *priv)
 171 {
 172         struct cx88_core *core = priv;
 173         struct cx88_IR *ir;
 174
 175         if (!core || !core->ir)
 176                 return -EINVAL;
 177
 178         ir = core->ir;
 179
 180         if (ir->polling) {
 181                 hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 182                 ir->timer.function = cx88_ir_work;
 183                 hrtimer_start(&ir->timer,
 184                               ktime_set(0, ir->polling * 1000000),
 185                               HRTIMER_MODE_REL);
 186         }
 187         if (ir->sampling) {
 188                 core->pci_irqmask |= PCI_INT_IR_SMPINT;
 189                 cx_write(MO_DDS_IO, 0x33F286 * ir_samplerate); /* samplerate */
 190                 cx_write(MO_DDSCFG_IO, 0x5); /* enable */
 191         }
 192         return 0;
 193 }
 194
 195 static void __cx88_ir_stop(void *priv)
 196 {
 197         struct cx88_core *core = priv;
 198         struct cx88_IR *ir;
 199
 200         if (!core || !core->ir)
 201                 return;
 202
 203         ir = core->ir;
 204         if (ir->sampling) {
 205                 cx_write(MO_DDSCFG_IO, 0x0);
 206                 core->pci_irqmask &= ~PCI_INT_IR_SMPINT;
 207         }
 208
 209         if (ir->polling)
 210                 hrtimer_cancel(&ir->timer);
 211 }
 212
 213 int cx88_ir_start(struct cx88_core *core)
 214 {
 215         if (core->ir->users)
 216                 return __cx88_ir_start(core);
 217
 218         return 0;
 219 }
 220
 221 void cx88_ir_stop(struct cx88_core *core)
 222 {
 223         if (core->ir->users)
 224                 __cx88_ir_stop(core);
 225 }
 226
 227 static int cx88_ir_open(struct rc_dev *rc)
 228 {
 229         struct cx88_core *core = rc->priv;
 230
 231         core->ir->users++;
 232         return __cx88_ir_start(core);
 233 }
 234
 235 static void cx88_ir_close(struct rc_dev *rc)
 236 {
 237         struct cx88_core *core = rc->priv;
 238
 239         core->ir->users--;
 240         if (!core->ir->users)
 241                 __cx88_ir_stop(core);
 242 }
 243
 244 /* ---------------------------------------------------------------------- */
 245
 246 int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
 247 {
 248         struct cx88_IR *ir;
 249         struct rc_dev *dev;
 250         char *ir_codes = NULL;
 251         u64 rc_type = RC_BIT_OTHER;
 252         int err = -ENOMEM;
 253         u32 hardware_mask = 0;  /* For devices with a hardware mask, when
 254                                  * used with a full-code IR table
 255                                  */
 256
 257         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
 258         dev = rc_allocate_device();
 259         if (!ir || !dev)
 260                 goto err_out_free;
 261
 262         ir->dev = dev;
 263
 264         /* detect & configure */
 265         switch (core->boardnr) {
 266         case CX88_BOARD_DNTV_LIVE_DVB_T:
 267         case CX88_BOARD_KWORLD_DVB_T:
 268         case CX88_BOARD_KWORLD_DVB_T_CX22702:
 269                 ir_codes = RC_MAP_DNTV_LIVE_DVB_T;
 270                 ir->gpio_addr = MO_GP1_IO;
 271                 ir->mask_keycode = 0x1f;
 272                 ir->mask_keyup = 0x60;
 273                 ir->polling = 50; /* ms */
 274                 break;
 275         case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
 276                 ir_codes = RC_MAP_CINERGY_1400;
 277                 ir->sampling = 0xeb04; /* address */
 278                 break;
 279         case CX88_BOARD_HAUPPAUGE:
 280         case CX88_BOARD_HAUPPAUGE_DVB_T1:
 281         case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
 282         case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
 283         case CX88_BOARD_HAUPPAUGE_HVR1100:
 284         case CX88_BOARD_HAUPPAUGE_HVR3000:
 285         case CX88_BOARD_HAUPPAUGE_HVR4000:
 286         case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
 287         case CX88_BOARD_PCHDTV_HD3000:
 288         case CX88_BOARD_PCHDTV_HD5500:
 289         case CX88_BOARD_HAUPPAUGE_IRONLY:
 290                 ir_codes = RC_MAP_HAUPPAUGE;
 291                 ir->sampling = 1;
 292                 break;
 293         case CX88_BOARD_WINFAST_DTV2000H:
 294         case CX88_BOARD_WINFAST_DTV2000H_J:
 295         case CX88_BOARD_WINFAST_DTV1800H:
 296         case CX88_BOARD_WINFAST_DTV1800H_XC4000:
 297         case CX88_BOARD_WINFAST_DTV2000H_PLUS:
 298                 ir_codes = RC_MAP_WINFAST;
 299                 ir->gpio_addr = MO_GP0_IO;
 300                 ir->mask_keycode = 0x8f8;
 301                 ir->mask_keyup = 0x100;
 302                 ir->polling = 50; /* ms */
 303                 break;
 304         case CX88_BOARD_WINFAST2000XP_EXPERT:
 305         case CX88_BOARD_WINFAST_DTV1000:
 306         case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
 307         case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36:
 308         case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43:
 309                 ir_codes = RC_MAP_WINFAST;
 310                 ir->gpio_addr = MO_GP0_IO;
 311                 ir->mask_keycode = 0x8f8;
 312                 ir->mask_keyup = 0x100;
 313                 ir->polling = 1; /* ms */
 314                 break;
 315         case CX88_BOARD_IODATA_GVBCTV7E:
 316                 ir_codes = RC_MAP_IODATA_BCTV7E;
 317                 ir->gpio_addr = MO_GP0_IO;
 318                 ir->mask_keycode = 0xfd;
 319                 ir->mask_keydown = 0x02;
 320                 ir->polling = 5; /* ms */
 321                 break;
 322         case CX88_BOARD_PROLINK_PLAYTVPVR:
 323         case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
 324                 /*
 325                  * It seems that this hardware is paired with NEC extended
 326                  * address 0x866b. So, unfortunately, its usage with other
 327                  * IR's with different address won't work. Still, there are
 328                  * other IR's from the same manufacturer that works, like the
 329                  * 002-T mini RC, provided with newer PV hardware
 330                  */
 331                 ir_codes = RC_MAP_PIXELVIEW_MK12;
 332                 ir->gpio_addr = MO_GP1_IO;
 333                 ir->mask_keyup = 0x80;
 334                 ir->polling = 10; /* ms */
 335                 hardware_mask = 0x3f;   /* Hardware returns only 6 bits from command part */
 336                 break;
 337         case CX88_BOARD_PROLINK_PV_8000GT:
 338         case CX88_BOARD_PROLINK_PV_GLOBAL_XTREME:
 339                 ir_codes = RC_MAP_PIXELVIEW_NEW;
 340                 ir->gpio_addr = MO_GP1_IO;
 341                 ir->mask_keycode = 0x3f;
 342                 ir->mask_keyup = 0x80;
 343                 ir->polling = 1; /* ms */
 344                 break;
 345         case CX88_BOARD_KWORLD_LTV883:
 346                 ir_codes = RC_MAP_PIXELVIEW;
 347                 ir->gpio_addr = MO_GP1_IO;
 348                 ir->mask_keycode = 0x1f;
 349                 ir->mask_keyup = 0x60;
 350                 ir->polling = 1; /* ms */
 351                 break;
 352         case CX88_BOARD_ADSTECH_DVB_T_PCI:
 353                 ir_codes = RC_MAP_ADSTECH_DVB_T_PCI;
 354                 ir->gpio_addr = MO_GP1_IO;
 355                 ir->mask_keycode = 0xbf;
 356                 ir->mask_keyup = 0x40;
 357                 ir->polling = 50; /* ms */
 358                 break;
 359         case CX88_BOARD_MSI_TVANYWHERE_MASTER:
 360                 ir_codes = RC_MAP_MSI_TVANYWHERE;
 361                 ir->gpio_addr = MO_GP1_IO;
 362                 ir->mask_keycode = 0x1f;
 363                 ir->mask_keyup = 0x40;
 364                 ir->polling = 1; /* ms */
 365                 break;
 366         case CX88_BOARD_AVERTV_303:
 367         case CX88_BOARD_AVERTV_STUDIO_303:
 368                 ir_codes         = RC_MAP_AVERTV_303;
 369                 ir->gpio_addr    = MO_GP2_IO;
 370                 ir->mask_keycode = 0xfb;
 371                 ir->mask_keydown = 0x02;
 372                 ir->polling      = 50; /* ms */
 373                 break;
 374         case CX88_BOARD_OMICOM_SS4_PCI:
 375         case CX88_BOARD_SATTRADE_ST4200:
 376         case CX88_BOARD_TBS_8920:
 377         case CX88_BOARD_TBS_8910:
 378         case CX88_BOARD_PROF_7300:
 379         case CX88_BOARD_PROF_7301:
 380         case CX88_BOARD_PROF_6200:
 381                 ir_codes = RC_MAP_TBS_NEC;
 382                 ir->sampling = 0xff00; /* address */
 383                 break;
 384         case CX88_BOARD_TEVII_S464:
 385         case CX88_BOARD_TEVII_S460:
 386         case CX88_BOARD_TEVII_S420:
 387                 ir_codes = RC_MAP_TEVII_NEC;
 388                 ir->sampling = 0xff00; /* address */
 389                 break;
 390         case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
 391                 ir_codes         = RC_MAP_DNTV_LIVE_DVBT_PRO;
 392                 ir->sampling     = 0xff00; /* address */
 393                 break;
 394         case CX88_BOARD_NORWOOD_MICRO:
 395                 ir_codes         = RC_MAP_NORWOOD;
 396                 ir->gpio_addr    = MO_GP1_IO;
 397                 ir->mask_keycode = 0x0e;
 398                 ir->mask_keyup   = 0x80;
 399                 ir->polling      = 50; /* ms */
 400                 break;
 401         case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
 402                 ir_codes         = RC_MAP_NPGTECH;
 403                 ir->gpio_addr    = MO_GP0_IO;
 404                 ir->mask_keycode = 0xfa;
 405                 ir->polling      = 50; /* ms */
 406                 break;
 407         case CX88_BOARD_PINNACLE_PCTV_HD_800i:
 408                 ir_codes         = RC_MAP_PINNACLE_PCTV_HD;
 409                 ir->sampling     = 1;
 410                 break;
 411         case CX88_BOARD_POWERCOLOR_REAL_ANGEL:
 412                 ir_codes         = RC_MAP_POWERCOLOR_REAL_ANGEL;
 413                 ir->gpio_addr    = MO_GP2_IO;
 414                 ir->mask_keycode = 0x7e;
 415                 ir->polling      = 100; /* ms */
 416                 break;
 417         case CX88_BOARD_TWINHAN_VP1027_DVBS:
 418                 ir_codes         = RC_MAP_TWINHAN_VP1027_DVBS;
 419                 rc_type          = RC_BIT_NEC;
 420                 ir->sampling     = 0xff00; /* address */
 421                 break;
 422         }
 423
 424         if (!ir_codes) {
 425                 err = -ENODEV;
 426                 goto err_out_free;
 427         }
 428
 429         /*
 430          * The usage of mask_keycode were very convenient, due to several
 431          * reasons. Among others, the scancode tables were using the scancode
 432          * as the index elements. So, the less bits it was used, the smaller
 433          * the table were stored. After the input changes, the better is to use
 434          * the full scancodes, since it allows replacing the IR remote by
 435          * another one. Unfortunately, there are still some hardware, like
 436          * Pixelview Ultra Pro, where only part of the scancode is sent via
 437          * GPIO. So, there's no way to get the full scancode. Due to that,
 438          * hardware_mask were introduced here: it represents those hardware
 439          * that has such limits.
 440          */
 441         if (hardware_mask && !ir->mask_keycode)
 442                 ir->mask_keycode = hardware_mask;
 443
 444         /* init input device */
 445         snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)", core->board.name);
 446         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
 447
 448         dev->input_name = ir->name;
 449         dev->input_phys = ir->phys;
 450         dev->input_id.bustype = BUS_PCI;
 451         dev->input_id.version = 1;
 452         if (pci->subsystem_vendor) {
 453                 dev->input_id.vendor = pci->subsystem_vendor;
 454                 dev->input_id.product = pci->subsystem_device;
 455         } else {
 456                 dev->input_id.vendor = pci->vendor;
 457                 dev->input_id.product = pci->device;
 458         }
 459         dev->dev.parent = &pci->dev;
 460         dev->map_name = ir_codes;
 461         dev->driver_name = MODULE_NAME;
 462         dev->priv = core;
 463         dev->open = cx88_ir_open;
 464         dev->close = cx88_ir_close;
 465         dev->scanmask = hardware_mask;
 466
 467         if (ir->sampling) {
 468                 dev->driver_type = RC_DRIVER_IR_RAW;
 469                 dev->timeout = 10 * 1000 * 1000; /* 10 ms */
 470         } else {
 471                 dev->driver_type = RC_DRIVER_SCANCODE;
 472                 dev->allowed_protos = rc_type;
 473         }
 474
 475         ir->core = core;
 476         core->ir = ir;
 477
 478         /* all done */
 479         err = rc_register_device(dev);
 480         if (err)
 481                 goto err_out_free;
 482
 483         return 0;
 484
 485 err_out_free:
 486         rc_free_device(dev);
 487         core->ir = NULL;
 488         kfree(ir);
 489         return err;
 490 }
 491
 492 int cx88_ir_fini(struct cx88_core *core)
 493 {
 494         struct cx88_IR *ir = core->ir;
 495
 496         /* skip detach on non attached boards */
 497         if (NULL == ir)
 498                 return 0;
 499
 500         cx88_ir_stop(core);
 501         rc_unregister_device(ir->dev);
 502         kfree(ir);
 503
 504         /* done */
 505         core->ir = NULL;
 506         return 0;
 507 }
 508
 509 /* ---------------------------------------------------------------------- */
 510
 511 void cx88_ir_irq(struct cx88_core *core)
 512 {
 513         struct cx88_IR *ir = core->ir;
 514         u32 samples;
 515         unsigned todo, bits;
 516         struct ir_raw_event ev;
 517
 518         if (!ir || !ir->sampling)
 519                 return;
 520
 521         /*
 522          * Samples are stored in a 32 bit register, oldest sample in
 523          * the msb. A set bit represents space and an unset bit
 524          * represents a pulse.
 525          */
 526         samples = cx_read(MO_SAMPLE_IO);
 527
 528         if (samples == 0xff && ir->dev->idle)
 529                 return;
 530
 531         init_ir_raw_event(&ev);
 532         for (todo = 32; todo > 0; todo -= bits) {
 533                 ev.pulse = samples & 0x80000000 ? false : true;
 534                 bits = min(todo, 32U - fls(ev.pulse ? samples : ~samples));
 535                 ev.duration = (bits * (NSEC_PER_SEC / 1000)) / ir_samplerate;
 536                 ir_raw_event_store_with_filter(ir->dev, &ev);
 537                 samples <<= bits;
 538         }
 539         ir_raw_event_handle(ir->dev);
 540 }
 541
 542 static int get_key_pvr2000(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 543 {
 544         int flags, code;
 545
 546         /* poll IR chip */
 547         flags = i2c_smbus_read_byte_data(ir->c, 0x10);
 548         if (flags < 0) {
 549                 dprintk("read error\n");
 550                 return 0;
 551         }
 552         /* key pressed ? */
 553         if (0 == (flags & 0x80))
 554                 return 0;
 555
 556         /* read actual key code */
 557         code = i2c_smbus_read_byte_data(ir->c, 0x00);
 558         if (code < 0) {
 559                 dprintk("read error\n");
 560                 return 0;
 561         }
 562
 563         dprintk("IR Key/Flags: (0x%02x/0x%02x)\n",
 564                    code & 0xff, flags & 0xff);
 565
 566         *ir_key = code & 0xff;
 567         *ir_raw = code;
 568         return 1;
 569 }
 570
 571 void cx88_i2c_init_ir(struct cx88_core *core)
 572 {
 573         struct i2c_board_info info;
 574         const unsigned short default_addr_list[] = {
 575                 0x18, 0x6b, 0x71,
 576                 I2C_CLIENT_END
 577         };
 578         const unsigned short pvr2000_addr_list[] = {
 579                 0x18, 0x1a,
 580                 I2C_CLIENT_END
 581         };
 582         const unsigned short *addr_list = default_addr_list;
 583         const unsigned short *addrp;
 584         /* Instantiate the IR receiver device, if present */
 585         if (0 != core->i2c_rc)
 586                 return;
 587
 588         memset(&info, 0, sizeof(struct i2c_board_info));
 589         strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
 590
 591         switch (core->boardnr) {
 592         case CX88_BOARD_LEADTEK_PVR2000:
 593                 addr_list = pvr2000_addr_list;
 594                 core->init_data.name = "cx88 Leadtek PVR 2000 remote";
 595                 core->init_data.type = RC_BIT_UNKNOWN;
 596                 core->init_data.get_key = get_key_pvr2000;
 597                 core->init_data.ir_codes = RC_MAP_EMPTY;
 598                 break;
 599         }
 600
 601         /*
 602          * We can't call i2c_new_probed_device() because it uses
 603          * quick writes for probing and at least some RC receiver
 604          * devices only reply to reads.
 605          * Also, Hauppauge XVR needs to be specified, as address 0x71
 606          * conflicts with another remote type used with saa7134
 607          */
 608         for (addrp = addr_list; *addrp != I2C_CLIENT_END; addrp++) {
 609                 info.platform_data = NULL;
 610                 memset(&core->init_data, 0, sizeof(core->init_data));
 611
 612                 if (*addrp == 0x71) {
 613                         /* Hauppauge XVR */
 614                         core->init_data.name = "cx88 Hauppauge XVR remote";
 615                         core->init_data.ir_codes = RC_MAP_HAUPPAUGE;
 616                         core->init_data.type = RC_BIT_RC5;
 617                         core->init_data.internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
 618
 619                         info.platform_data = &core->init_data;
 620                 }
 621                 if (i2c_smbus_xfer(&core->i2c_adap, *addrp, 0,
 622                                         I2C_SMBUS_READ, 0,
 623                                         I2C_SMBUS_QUICK, NULL) >= 0) {
 624                         info.addr = *addrp;
 625                         i2c_new_device(&core->i2c_adap, &info);
 626                         break;
 627                 }
 628         }
 629 }
 630
 631 /* ---------------------------------------------------------------------- */
 632
 633 MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
 634 MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
 635 MODULE_LICENSE("GPL");