1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * 4 * Device driver for GPIO attached remote control interfaces 5 * on Conexant 2388x based TV/DVB cards. 6 * 7 * Copyright (c) 2003 Pavel Machek 8 * Copyright (c) 2004 Gerd Knorr 9 * Copyright (c) 2004, 2005 Chris Pascoe 10 */ 11 12#include "cx88.h" 13 14#include <linux/init.h> 15#include <linux/hrtimer.h> 16#include <linux/pci.h> 17#include <linux/slab.h> 18#include <linux/module.h> 19 20#include <media/rc-core.h> 21 22#define MODULE_NAME "cx88xx" 23 24/* ---------------------------------------------------------------------- */ 25 26struct cx88_IR { 27 struct cx88_core *core; 28 struct rc_dev *dev; 29 30 int users; 31 32 char name[32]; 33 char phys[32]; 34 35 /* sample from gpio pin 16 */ 36 u32 sampling; 37 38 /* poll external decoder */ 39 int polling; 40 struct hrtimer timer; 41 u32 gpio_addr; 42 u32 last_gpio; 43 u32 mask_keycode; 44 u32 mask_keydown; 45 u32 mask_keyup; 46}; 47 48static unsigned int ir_samplerate = 4; 49module_param(ir_samplerate, uint, 0444); 50MODULE_PARM_DESC(ir_samplerate, "IR samplerate in kHz, 1 - 20, default 4"); 51 52static int ir_debug; 53module_param(ir_debug, int, 0644); /* debug level [IR] */ 54MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]"); 55 56#define ir_dprintk(fmt, arg...) do { \ 57 if (ir_debug) \ 58 printk(KERN_DEBUG "%s IR: " fmt, ir->core->name, ##arg);\ 59} while (0) 60 61#define dprintk(fmt, arg...) do { \ 62 if (ir_debug) \ 63 printk(KERN_DEBUG "cx88 IR: " fmt, ##arg); \ 64} while (0) 65 66/* ---------------------------------------------------------------------- */ 67 68static void cx88_ir_handle_key(struct cx88_IR *ir) 69{ 70 struct cx88_core *core = ir->core; 71 u32 gpio, data, auxgpio; 72 73 /* read gpio value */ 74 gpio = cx_read(ir->gpio_addr); 75 switch (core->boardnr) { 76 case CX88_BOARD_NPGTECH_REALTV_TOP10FM: 77 /* 78 * This board apparently uses a combination of 2 GPIO 79 * to represent the keys. Additionally, the second GPIO 80 * can be used for parity. 81 * 82 * Example: 83 * 84 * for key "5" 85 * gpio = 0x758, auxgpio = 0xe5 or 0xf5 86 * for key "Power" 87 * gpio = 0x758, auxgpio = 0xed or 0xfd 88 */ 89 90 auxgpio = cx_read(MO_GP1_IO); 91 /* Take out the parity part */ 92 gpio = (gpio & 0x7fd) + (auxgpio & 0xef); 93 break; 94 case CX88_BOARD_WINFAST_DTV1000: 95 case CX88_BOARD_WINFAST_DTV1800H: 96 case CX88_BOARD_WINFAST_DTV1800H_XC4000: 97 case CX88_BOARD_WINFAST_DTV2000H_PLUS: 98 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL: 99 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36: 100 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43: 101 gpio = (gpio & 0x6ff) | ((cx_read(MO_GP1_IO) << 8) & 0x900); 102 auxgpio = gpio; 103 break; 104 default: 105 auxgpio = gpio; 106 } 107 if (ir->polling) { 108 if (ir->last_gpio == auxgpio) 109 return; 110 ir->last_gpio = auxgpio; 111 } 112 113 /* extract data */ 114 data = ir_extract_bits(gpio, ir->mask_keycode); 115 ir_dprintk("irq gpio=0x%x code=%d | %s%s%s\n", 116 gpio, data, 117 ir->polling ? "poll" : "irq", 118 (gpio & ir->mask_keydown) ? " down" : "", 119 (gpio & ir->mask_keyup) ? " up" : ""); 120 121 if (ir->core->boardnr == CX88_BOARD_NORWOOD_MICRO) { 122 u32 gpio_key = cx_read(MO_GP0_IO); 123 124 data = (data << 4) | ((gpio_key & 0xf0) >> 4); 125 126 rc_keydown(ir->dev, RC_PROTO_UNKNOWN, data, 0); 127 128 } else if (ir->core->boardnr == CX88_BOARD_PROLINK_PLAYTVPVR || 129 ir->core->boardnr == CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO) { 130 /* bit cleared on keydown, NEC scancode, 0xAAAACC, A = 0x866b */ 131 u16 addr; 132 u8 cmd; 133 u32 scancode; 134 135 addr = (data >> 8) & 0xffff; 136 cmd = (data >> 0) & 0x00ff; 137 scancode = RC_SCANCODE_NECX(addr, cmd); 138 139 if (0 == (gpio & ir->mask_keyup)) 140 rc_keydown_notimeout(ir->dev, RC_PROTO_NECX, scancode, 141 0); 142 else 143 rc_keyup(ir->dev); 144 145 } else if (ir->mask_keydown) { 146 /* bit set on keydown */ 147 if (gpio & ir->mask_keydown) 148 rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data, 149 0); 150 else 151 rc_keyup(ir->dev); 152 153 } else if (ir->mask_keyup) { 154 /* bit cleared on keydown */ 155 if (0 == (gpio & ir->mask_keyup)) 156 rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data, 157 0); 158 else 159 rc_keyup(ir->dev); 160 161 } else { 162 /* can't distinguish keydown/up :-/ */ 163 rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data, 0); 164 rc_keyup(ir->dev); 165 } 166} 167 168static enum hrtimer_restart cx88_ir_work(struct hrtimer *timer) 169{ 170 u64 missed; 171 struct cx88_IR *ir = container_of(timer, struct cx88_IR, timer); 172 173 cx88_ir_handle_key(ir); 174 missed = hrtimer_forward_now(&ir->timer, 175 ktime_set(0, ir->polling * 1000000)); 176 if (missed > 1) 177 ir_dprintk("Missed ticks %llu\n", missed - 1); 178 179 return HRTIMER_RESTART; 180} 181 182static int __cx88_ir_start(void *priv) 183{ 184 struct cx88_core *core = priv; 185 struct cx88_IR *ir; 186 187 if (!core || !core->ir) 188 return -EINVAL; 189 190 ir = core->ir; 191 192 if (ir->polling) { 193 hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); 194 ir->timer.function = cx88_ir_work; 195 hrtimer_start(&ir->timer, 196 ktime_set(0, ir->polling * 1000000), 197 HRTIMER_MODE_REL); 198 } 199 if (ir->sampling) { 200 core->pci_irqmask |= PCI_INT_IR_SMPINT; 201 cx_write(MO_DDS_IO, 0x33F286 * ir_samplerate); /* samplerate */ 202 cx_write(MO_DDSCFG_IO, 0x5); /* enable */ 203 } 204 return 0; 205} 206 207static void __cx88_ir_stop(void *priv) 208{ 209 struct cx88_core *core = priv; 210 struct cx88_IR *ir; 211 212 if (!core || !core->ir) 213 return; 214 215 ir = core->ir; 216 if (ir->sampling) { 217 cx_write(MO_DDSCFG_IO, 0x0); 218 core->pci_irqmask &= ~PCI_INT_IR_SMPINT; 219 } 220 221 if (ir->polling) 222 hrtimer_cancel(&ir->timer); 223} 224 225int cx88_ir_start(struct cx88_core *core) 226{ 227 if (core->ir->users) 228 return __cx88_ir_start(core); 229 230 return 0; 231} 232EXPORT_SYMBOL(cx88_ir_start); 233 234void cx88_ir_stop(struct cx88_core *core) 235{ 236 if (core->ir->users) 237 __cx88_ir_stop(core); 238} 239EXPORT_SYMBOL(cx88_ir_stop); 240 241static int cx88_ir_open(struct rc_dev *rc) 242{ 243 struct cx88_core *core = rc->priv; 244 245 core->ir->users++; 246 return __cx88_ir_start(core); 247} 248 249static void cx88_ir_close(struct rc_dev *rc) 250{ 251 struct cx88_core *core = rc->priv; 252 253 core->ir->users--; 254 if (!core->ir->users) 255 __cx88_ir_stop(core); 256} 257 258/* ---------------------------------------------------------------------- */ 259 260int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci) 261{ 262 struct cx88_IR *ir; 263 struct rc_dev *dev; 264 char *ir_codes = NULL; 265 u64 rc_proto = RC_PROTO_BIT_OTHER; 266 int err = -ENOMEM; 267 u32 hardware_mask = 0; /* For devices with a hardware mask, when 268 * used with a full-code IR table 269 */ 270 271 ir = kzalloc(sizeof(*ir), GFP_KERNEL); 272 dev = rc_allocate_device(RC_DRIVER_IR_RAW); 273 if (!ir || !dev) 274 goto err_out_free; 275 276 ir->dev = dev; 277 278 /* detect & configure */ 279 switch (core->boardnr) { 280 case CX88_BOARD_DNTV_LIVE_DVB_T: 281 case CX88_BOARD_KWORLD_DVB_T: 282 case CX88_BOARD_KWORLD_DVB_T_CX22702: 283 ir_codes = RC_MAP_DNTV_LIVE_DVB_T; 284 ir->gpio_addr = MO_GP1_IO; 285 ir->mask_keycode = 0x1f; 286 ir->mask_keyup = 0x60; 287 ir->polling = 50; /* ms */ 288 break; 289 case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1: 290 ir_codes = RC_MAP_CINERGY_1400; 291 ir->sampling = 0xeb04; /* address */ 292 break; 293 case CX88_BOARD_HAUPPAUGE: 294 case CX88_BOARD_HAUPPAUGE_DVB_T1: 295 case CX88_BOARD_HAUPPAUGE_NOVASE2_S1: 296 case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1: 297 case CX88_BOARD_HAUPPAUGE_HVR1100: 298 case CX88_BOARD_HAUPPAUGE_HVR3000: 299 case CX88_BOARD_HAUPPAUGE_HVR4000: 300 case CX88_BOARD_HAUPPAUGE_HVR4000LITE: 301 case CX88_BOARD_PCHDTV_HD3000: 302 case CX88_BOARD_PCHDTV_HD5500: 303 case CX88_BOARD_HAUPPAUGE_IRONLY: 304 ir_codes = RC_MAP_HAUPPAUGE; 305 ir->sampling = 1; 306 break; 307 case CX88_BOARD_WINFAST_DTV2000H: 308 case CX88_BOARD_WINFAST_DTV2000H_J: 309 case CX88_BOARD_WINFAST_DTV1800H: 310 case CX88_BOARD_WINFAST_DTV1800H_XC4000: 311 case CX88_BOARD_WINFAST_DTV2000H_PLUS: 312 ir_codes = RC_MAP_WINFAST; 313 ir->gpio_addr = MO_GP0_IO; 314 ir->mask_keycode = 0x8f8; 315 ir->mask_keyup = 0x100; 316 ir->polling = 50; /* ms */ 317 break; 318 case CX88_BOARD_WINFAST2000XP_EXPERT: 319 case CX88_BOARD_WINFAST_DTV1000: 320 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL: 321 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36: 322 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43: 323 ir_codes = RC_MAP_WINFAST; 324 ir->gpio_addr = MO_GP0_IO; 325 ir->mask_keycode = 0x8f8; 326 ir->mask_keyup = 0x100; 327 ir->polling = 1; /* ms */ 328 break; 329 case CX88_BOARD_IODATA_GVBCTV7E: 330 ir_codes = RC_MAP_IODATA_BCTV7E; 331 ir->gpio_addr = MO_GP0_IO; 332 ir->mask_keycode = 0xfd; 333 ir->mask_keydown = 0x02; 334 ir->polling = 5; /* ms */ 335 break; 336 case CX88_BOARD_PROLINK_PLAYTVPVR: 337 case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO: 338 /* 339 * It seems that this hardware is paired with NEC extended 340 * address 0x866b. So, unfortunately, its usage with other 341 * IR's with different address won't work. Still, there are 342 * other IR's from the same manufacturer that works, like the 343 * 002-T mini RC, provided with newer PV hardware 344 */ 345 ir_codes = RC_MAP_PIXELVIEW_MK12; 346 rc_proto = RC_PROTO_BIT_NECX; 347 ir->gpio_addr = MO_GP1_IO; 348 ir->mask_keyup = 0x80; 349 ir->polling = 10; /* ms */ 350 hardware_mask = 0x3f; /* Hardware returns only 6 bits from command part */ 351 break; 352 case CX88_BOARD_PROLINK_PV_8000GT: 353 case CX88_BOARD_PROLINK_PV_GLOBAL_XTREME: 354 ir_codes = RC_MAP_PIXELVIEW_NEW; 355 ir->gpio_addr = MO_GP1_IO; 356 ir->mask_keycode = 0x3f; 357 ir->mask_keyup = 0x80; 358 ir->polling = 1; /* ms */ 359 break; 360 case CX88_BOARD_KWORLD_LTV883: 361 ir_codes = RC_MAP_PIXELVIEW; 362 ir->gpio_addr = MO_GP1_IO; 363 ir->mask_keycode = 0x1f; 364 ir->mask_keyup = 0x60; 365 ir->polling = 1; /* ms */ 366 break; 367 case CX88_BOARD_ADSTECH_DVB_T_PCI: 368 ir_codes = RC_MAP_ADSTECH_DVB_T_PCI; 369 ir->gpio_addr = MO_GP1_IO; 370 ir->mask_keycode = 0xbf; 371 ir->mask_keyup = 0x40; 372 ir->polling = 50; /* ms */ 373 break; 374 case CX88_BOARD_MSI_TVANYWHERE_MASTER: 375 ir_codes = RC_MAP_MSI_TVANYWHERE; 376 ir->gpio_addr = MO_GP1_IO; 377 ir->mask_keycode = 0x1f; 378 ir->mask_keyup = 0x40; 379 ir->polling = 1; /* ms */ 380 break; 381 case CX88_BOARD_AVERTV_303: 382 case CX88_BOARD_AVERTV_STUDIO_303: 383 ir_codes = RC_MAP_AVERTV_303; 384 ir->gpio_addr = MO_GP2_IO; 385 ir->mask_keycode = 0xfb; 386 ir->mask_keydown = 0x02; 387 ir->polling = 50; /* ms */ 388 break; 389 case CX88_BOARD_OMICOM_SS4_PCI: 390 case CX88_BOARD_SATTRADE_ST4200: 391 case CX88_BOARD_TBS_8920: 392 case CX88_BOARD_TBS_8910: 393 case CX88_BOARD_PROF_7300: 394 case CX88_BOARD_PROF_7301: 395 case CX88_BOARD_PROF_6200: 396 ir_codes = RC_MAP_TBS_NEC; 397 ir->sampling = 0xff00; /* address */ 398 break; 399 case CX88_BOARD_TEVII_S464: 400 case CX88_BOARD_TEVII_S460: 401 case CX88_BOARD_TEVII_S420: 402 ir_codes = RC_MAP_TEVII_NEC; 403 ir->sampling = 0xff00; /* address */ 404 break; 405 case CX88_BOARD_DNTV_LIVE_DVB_T_PRO: 406 ir_codes = RC_MAP_DNTV_LIVE_DVBT_PRO; 407 ir->sampling = 0xff00; /* address */ 408 break; 409 case CX88_BOARD_NORWOOD_MICRO: 410 ir_codes = RC_MAP_NORWOOD; 411 ir->gpio_addr = MO_GP1_IO; 412 ir->mask_keycode = 0x0e; 413 ir->mask_keyup = 0x80; 414 ir->polling = 50; /* ms */ 415 break; 416 case CX88_BOARD_NPGTECH_REALTV_TOP10FM: 417 ir_codes = RC_MAP_NPGTECH; 418 ir->gpio_addr = MO_GP0_IO; 419 ir->mask_keycode = 0xfa; 420 ir->polling = 50; /* ms */ 421 break; 422 case CX88_BOARD_PINNACLE_PCTV_HD_800i: 423 ir_codes = RC_MAP_PINNACLE_PCTV_HD; 424 ir->sampling = 1; 425 break; 426 case CX88_BOARD_POWERCOLOR_REAL_ANGEL: 427 ir_codes = RC_MAP_POWERCOLOR_REAL_ANGEL; 428 ir->gpio_addr = MO_GP2_IO; 429 ir->mask_keycode = 0x7e; 430 ir->polling = 100; /* ms */ 431 break; 432 case CX88_BOARD_TWINHAN_VP1027_DVBS: 433 ir_codes = RC_MAP_TWINHAN_VP1027_DVBS; 434 ir->sampling = 0xff00; /* address */ 435 break; 436 } 437 438 if (!ir_codes) { 439 err = -ENODEV; 440 goto err_out_free; 441 } 442 443 /* 444 * The usage of mask_keycode were very convenient, due to several 445 * reasons. Among others, the scancode tables were using the scancode 446 * as the index elements. So, the less bits it was used, the smaller 447 * the table were stored. After the input changes, the better is to use 448 * the full scancodes, since it allows replacing the IR remote by 449 * another one. Unfortunately, there are still some hardware, like 450 * Pixelview Ultra Pro, where only part of the scancode is sent via 451 * GPIO. So, there's no way to get the full scancode. Due to that, 452 * hardware_mask were introduced here: it represents those hardware 453 * that has such limits. 454 */ 455 if (hardware_mask && !ir->mask_keycode) 456 ir->mask_keycode = hardware_mask; 457 458 /* init input device */ 459 snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)", core->board.name); 460 snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci)); 461 462 dev->device_name = ir->name; 463 dev->input_phys = ir->phys; 464 dev->input_id.bustype = BUS_PCI; 465 dev->input_id.version = 1; 466 if (pci->subsystem_vendor) { 467 dev->input_id.vendor = pci->subsystem_vendor; 468 dev->input_id.product = pci->subsystem_device; 469 } else { 470 dev->input_id.vendor = pci->vendor; 471 dev->input_id.product = pci->device; 472 } 473 dev->dev.parent = &pci->dev; 474 dev->map_name = ir_codes; 475 dev->driver_name = MODULE_NAME; 476 dev->priv = core; 477 dev->open = cx88_ir_open; 478 dev->close = cx88_ir_close; 479 dev->scancode_mask = hardware_mask; 480 481 if (ir->sampling) { 482 dev->timeout = MS_TO_US(10); /* 10 ms */ 483 } else { 484 dev->driver_type = RC_DRIVER_SCANCODE; 485 dev->allowed_protocols = rc_proto; 486 } 487 488 ir->core = core; 489 core->ir = ir; 490 491 /* all done */ 492 err = rc_register_device(dev); 493 if (err) 494 goto err_out_free; 495 496 return 0; 497 498err_out_free: 499 rc_free_device(dev); 500 core->ir = NULL; 501 kfree(ir); 502 return err; 503} 504 505int cx88_ir_fini(struct cx88_core *core) 506{ 507 struct cx88_IR *ir = core->ir; 508 509 /* skip detach on non attached boards */ 510 if (!ir) 511 return 0; 512 513 cx88_ir_stop(core); 514 rc_unregister_device(ir->dev); 515 kfree(ir); 516 517 /* done */ 518 core->ir = NULL; 519 return 0; 520} 521 522/* ---------------------------------------------------------------------- */ 523 524void cx88_ir_irq(struct cx88_core *core) 525{ 526 struct cx88_IR *ir = core->ir; 527 u32 samples; 528 unsigned int todo, bits; 529 struct ir_raw_event ev = {}; 530 531 if (!ir || !ir->sampling) 532 return; 533 534 /* 535 * Samples are stored in a 32 bit register, oldest sample in 536 * the msb. A set bit represents space and an unset bit 537 * represents a pulse. 538 */ 539 samples = cx_read(MO_SAMPLE_IO); 540 541 if (samples == 0xff && ir->dev->idle) 542 return; 543 544 for (todo = 32; todo > 0; todo -= bits) { 545 ev.pulse = samples & 0x80000000 ? false : true; 546 bits = min(todo, 32U - fls(ev.pulse ? samples : ~samples)); 547 ev.duration = (bits * (USEC_PER_SEC / 1000)) / ir_samplerate; 548 ir_raw_event_store_with_filter(ir->dev, &ev); 549 samples <<= bits; 550 } 551 ir_raw_event_handle(ir->dev); 552} 553 554static int get_key_pvr2000(struct IR_i2c *ir, enum rc_proto *protocol, 555 u32 *scancode, u8 *toggle) 556{ 557 int flags, code; 558 559 /* poll IR chip */ 560 flags = i2c_smbus_read_byte_data(ir->c, 0x10); 561 if (flags < 0) { 562 dprintk("read error\n"); 563 return 0; 564 } 565 /* key pressed ? */ 566 if (0 == (flags & 0x80)) 567 return 0; 568 569 /* read actual key code */ 570 code = i2c_smbus_read_byte_data(ir->c, 0x00); 571 if (code < 0) { 572 dprintk("read error\n"); 573 return 0; 574 } 575 576 dprintk("IR Key/Flags: (0x%02x/0x%02x)\n", 577 code & 0xff, flags & 0xff); 578 579 *protocol = RC_PROTO_UNKNOWN; 580 *scancode = code & 0xff; 581 *toggle = 0; 582 return 1; 583} 584 585void cx88_i2c_init_ir(struct cx88_core *core) 586{ 587 struct i2c_board_info info; 588 static const unsigned short default_addr_list[] = { 589 0x18, 0x33, 0x6b, 0x71, 590 I2C_CLIENT_END 591 }; 592 static const unsigned short pvr2000_addr_list[] = { 593 0x18, 0x1a, 594 I2C_CLIENT_END 595 }; 596 const unsigned short *addr_list = default_addr_list; 597 const unsigned short *addrp; 598 /* Instantiate the IR receiver device, if present */ 599 if (core->i2c_rc != 0) 600 return; 601 602 memset(&info, 0, sizeof(struct i2c_board_info)); 603 strscpy(info.type, "ir_video", I2C_NAME_SIZE); 604 605 switch (core->boardnr) { 606 case CX88_BOARD_LEADTEK_PVR2000: 607 addr_list = pvr2000_addr_list; 608 core->init_data.name = "cx88 Leadtek PVR 2000 remote"; 609 core->init_data.type = RC_PROTO_BIT_UNKNOWN; 610 core->init_data.get_key = get_key_pvr2000; 611 core->init_data.ir_codes = RC_MAP_EMPTY; 612 break; 613 } 614 615 /* 616 * We can't call i2c_new_scanned_device() because it uses 617 * quick writes for probing and at least some RC receiver 618 * devices only reply to reads. 619 * Also, Hauppauge XVR needs to be specified, as address 0x71 620 * conflicts with another remote type used with saa7134 621 */ 622 for (addrp = addr_list; *addrp != I2C_CLIENT_END; addrp++) { 623 info.platform_data = NULL; 624 memset(&core->init_data, 0, sizeof(core->init_data)); 625 626 if (*addrp == 0x71) { 627 /* Hauppauge Z8F0811 */ 628 strscpy(info.type, "ir_z8f0811_haup", I2C_NAME_SIZE); 629 core->init_data.name = core->board.name; 630 core->init_data.ir_codes = RC_MAP_HAUPPAUGE; 631 core->init_data.type = RC_PROTO_BIT_RC5 | 632 RC_PROTO_BIT_RC6_MCE | RC_PROTO_BIT_RC6_6A_32; 633 core->init_data.internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR; 634 635 info.platform_data = &core->init_data; 636 } 637 if (i2c_smbus_xfer(&core->i2c_adap, *addrp, 0, 638 I2C_SMBUS_READ, 0, 639 I2C_SMBUS_QUICK, NULL) >= 0) { 640 info.addr = *addrp; 641 i2c_new_client_device(&core->i2c_adap, &info); 642 break; 643 } 644 } 645} 646 647/* ---------------------------------------------------------------------- */ 648 649MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe"); 650MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls"); 651MODULE_LICENSE("GPL"); 652