Free Electrons

Embedded Linux Experts

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
/*
 *
 * handle saa7134 IR remotes via linux kernel input layer.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include "saa7134.h"
#include "saa7134-reg.h"

#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/slab.h>

#define MODULE_NAME "saa7134"

static unsigned int disable_ir;
module_param(disable_ir, int, 0444);
MODULE_PARM_DESC(disable_ir,"disable infrared remote support");

static unsigned int ir_debug;
module_param(ir_debug, int, 0644);
MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");

static int pinnacle_remote;
module_param(pinnacle_remote, int, 0644);    /* Choose Pinnacle PCTV remote */
MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");

#define input_dbg(fmt, arg...) do { \
	if (ir_debug) \
		printk(KERN_DEBUG pr_fmt("input: " fmt), ## arg); \
	} while (0)
#define ir_dbg(ir, fmt, arg...) do { \
	if (ir_debug) \
		printk(KERN_DEBUG pr_fmt("ir %s: " fmt), ir->name, ## arg); \
	} while (0)

/* Helper function for raw decoding at GPIO16 or GPIO18 */
static int saa7134_raw_decode_irq(struct saa7134_dev *dev);

/* -------------------- GPIO generic keycode builder -------------------- */

static int build_key(struct saa7134_dev *dev)
{
	struct saa7134_card_ir *ir = dev->remote;
	u32 gpio, data;

	/* here comes the additional handshake steps for some cards */
	switch (dev->board) {
	case SAA7134_BOARD_GOTVIEW_7135:
		saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
		saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
		break;
	}
	/* rising SAA7134_GPIO_GPRESCAN reads the status */
	saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
	saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);

	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
	if (ir->polling) {
		if (ir->last_gpio == gpio)
			return 0;
		ir->last_gpio = gpio;
	}

	data = ir_extract_bits(gpio, ir->mask_keycode);
	input_dbg("build_key gpio=0x%x mask=0x%x data=%d\n",
		gpio, ir->mask_keycode, data);

	switch (dev->board) {
	case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
		if (data == ir->mask_keycode)
			rc_keyup(ir->dev);
		else
			rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data,
					     0);
		return 0;
	}

	if (ir->polling) {
		if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
		    (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
			rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data,
					     0);
		} else {
			rc_keyup(ir->dev);
		}
	}
	else {	/* IRQ driven mode - handle key press and release in one go */
		if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
		    (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
			rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data,
					     0);
			rc_keyup(ir->dev);
		}
	}

	return 0;
}

/* --------------------- Chip specific I2C key builders ----------------- */

static int get_key_flydvb_trio(struct IR_i2c *ir, enum rc_proto *protocol,
			       u32 *scancode, u8 *toggle)
{
	int gpio;
	int attempt = 0;
	unsigned char b;

	/* We need this to access GPI Used by the saa_readl macro. */
	struct saa7134_dev *dev = ir->c->adapter->algo_data;

	if (dev == NULL) {
		ir_dbg(ir, "get_key_flydvb_trio: ir->c->adapter->algo_data is NULL!\n");
		return -EIO;
	}

	/* rising SAA7134_GPIGPRESCAN reads the status */
	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);

	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);

	if (0x40000 & ~gpio)
		return 0; /* No button press */

	/* poll IR chip */
	/* weak up the IR chip */
	b = 0;

	while (1 != i2c_master_send(ir->c, &b, 1)) {
		if ((attempt++) < 10) {
			/*
			 * wait a bit for next attempt -
			 * I don't know how make it better
			 */
			msleep(10);
			continue;
		}
		ir_dbg(ir, "send wake up byte to pic16C505 (IR chip)failed %dx\n",
		       attempt);
		return -EIO;
	}
	if (1 != i2c_master_recv(ir->c, &b, 1)) {
		ir_dbg(ir, "read error\n");
		return -EIO;
	}

	*protocol = RC_PROTO_UNKNOWN;
	*scancode = b;
	*toggle = 0;
	return 1;
}

static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir,
				       enum rc_proto *protocol,
				       u32 *scancode, u8 *toggle)
{
	unsigned char b;
	int gpio;

	/* <dev> is needed to access GPIO. Used by the saa_readl macro. */
	struct saa7134_dev *dev = ir->c->adapter->algo_data;
	if (dev == NULL) {
		ir_dbg(ir, "get_key_msi_tvanywhere_plus: ir->c->adapter->algo_data is NULL!\n");
		return -EIO;
	}

	/* rising SAA7134_GPIO_GPRESCAN reads the status */

	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);

	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);

	/* GPIO&0x40 is pulsed low when a button is pressed. Don't do
	   I2C receive if gpio&0x40 is not low. */

	if (gpio & 0x40)
		return 0;       /* No button press */

	/* GPIO says there is a button press. Get it. */

	if (1 != i2c_master_recv(ir->c, &b, 1)) {
		ir_dbg(ir, "read error\n");
		return -EIO;
	}

	/* No button press */

	if (b == 0xff)
		return 0;

	/* Button pressed */

	input_dbg("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
	*protocol = RC_PROTO_UNKNOWN;
	*scancode = b;
	*toggle = 0;
	return 1;
}

/* copied and modified from get_key_msi_tvanywhere_plus() */
static int get_key_kworld_pc150u(struct IR_i2c *ir, enum rc_proto *protocol,
				 u32 *scancode, u8 *toggle)
{
	unsigned char b;
	unsigned int gpio;

	/* <dev> is needed to access GPIO. Used by the saa_readl macro. */
	struct saa7134_dev *dev = ir->c->adapter->algo_data;
	if (dev == NULL) {
		ir_dbg(ir, "get_key_kworld_pc150u: ir->c->adapter->algo_data is NULL!\n");
		return -EIO;
	}

	/* rising SAA7134_GPIO_GPRESCAN reads the status */

	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);

	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);

	/* GPIO&0x100 is pulsed low when a button is pressed. Don't do
	   I2C receive if gpio&0x100 is not low. */

	if (gpio & 0x100)
		return 0;       /* No button press */

	/* GPIO says there is a button press. Get it. */

	if (1 != i2c_master_recv(ir->c, &b, 1)) {
		ir_dbg(ir, "read error\n");
		return -EIO;
	}

	/* No button press */

	if (b == 0xff)
		return 0;

	/* Button pressed */

	input_dbg("get_key_kworld_pc150u: Key = 0x%02X\n", b);
	*protocol = RC_PROTO_UNKNOWN;
	*scancode = b;
	*toggle = 0;
	return 1;
}

static int get_key_purpletv(struct IR_i2c *ir, enum rc_proto *protocol,
			    u32 *scancode, u8 *toggle)
{
	unsigned char b;

	/* poll IR chip */
	if (1 != i2c_master_recv(ir->c, &b, 1)) {
		ir_dbg(ir, "read error\n");
		return -EIO;
	}

	/* no button press */
	if (b==0)
		return 0;

	/* repeating */
	if (b & 0x80)
		return 1;

	*protocol = RC_PROTO_UNKNOWN;
	*scancode = b;
	*toggle = 0;
	return 1;
}

static int get_key_hvr1110(struct IR_i2c *ir, enum rc_proto *protocol,
			   u32 *scancode, u8 *toggle)
{
	unsigned char buf[5];

	/* poll IR chip */
	if (5 != i2c_master_recv(ir->c, buf, 5))
		return -EIO;

	/* Check if some key were pressed */
	if (!(buf[0] & 0x80))
		return 0;

	/*
	 * buf[3] & 0x80 is always high.
	 * buf[3] & 0x40 is a parity bit. A repeat event is marked
	 * by preserving it into two separate readings
	 * buf[4] bits 0 and 1, and buf[1] and buf[2] are always
	 * zero.
	 *
	 * Note that the keymap which the hvr1110 uses is RC5.
	 *
	 * FIXME: start bits could maybe be used...?
	 */
	*protocol = RC_PROTO_RC5;
	*scancode = RC_SCANCODE_RC5(buf[3] & 0x1f, buf[4] >> 2);
	*toggle = !!(buf[3] & 0x40);
	return 1;
}


static int get_key_beholdm6xx(struct IR_i2c *ir, enum rc_proto *protocol,
			      u32 *scancode, u8 *toggle)
{
	unsigned char data[12];
	u32 gpio;

	struct saa7134_dev *dev = ir->c->adapter->algo_data;

	/* rising SAA7134_GPIO_GPRESCAN reads the status */
	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);

	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);

	if (0x400000 & ~gpio)
		return 0; /* No button press */

	ir->c->addr = 0x5a >> 1;

	if (12 != i2c_master_recv(ir->c, data, 12)) {
		ir_dbg(ir, "read error\n");
		return -EIO;
	}

	if (data[9] != (unsigned char)(~data[8]))
		return 0;

	*protocol = RC_PROTO_NECX;
	*scancode = RC_SCANCODE_NECX(data[11] << 8 | data[10], data[9]);
	*toggle = 0;
	return 1;
}

/* Common (grey or coloured) pinnacle PCTV remote handling
 *
 */
static int get_key_pinnacle(struct IR_i2c *ir, enum rc_proto *protocol,
			    u32 *scancode, u8 *toggle, int parity_offset,
			    int marker, int code_modulo)
{
	unsigned char b[4];
	unsigned int start = 0,parity = 0,code = 0;

	/* poll IR chip */
	if (4 != i2c_master_recv(ir->c, b, 4)) {
		ir_dbg(ir, "read error\n");
		return -EIO;
	}

	for (start = 0; start < ARRAY_SIZE(b); start++) {
		if (b[start] == marker) {
			code=b[(start+parity_offset + 1) % 4];
			parity=b[(start+parity_offset) % 4];
		}
	}

	/* Empty Request */
	if (parity == 0)
		return 0;

	/* Repeating... */
	if (ir->old == parity)
		return 0;

	ir->old = parity;

	/* drop special codes when a key is held down a long time for the grey controller
	   In this case, the second bit of the code is asserted */
	if (marker == 0xfe && (code & 0x40))
		return 0;

	code %= code_modulo;

	*protocol = RC_PROTO_UNKNOWN;
	*scancode = code;
	*toggle = 0;

	ir_dbg(ir, "Pinnacle PCTV key %02x\n", code);
	return 1;
}

/* The grey pinnacle PCTV remote
 *
 *  There are one issue with this remote:
 *   - I2c packet does not change when the same key is pressed quickly. The workaround
 *     is to hold down each key for about half a second, so that another code is generated
 *     in the i2c packet, and the function can distinguish key presses.
 *
 * Sylvain Pasche <sylvain.pasche@gmail.com>
 */
static int get_key_pinnacle_grey(struct IR_i2c *ir, enum rc_proto *protocol,
				 u32 *scancode, u8 *toggle)
{

	return get_key_pinnacle(ir, protocol, scancode, toggle, 1, 0xfe, 0xff);
}


/* The new pinnacle PCTV remote (with the colored buttons)
 *
 * Ricardo Cerqueira <v4l@cerqueira.org>
 */
static int get_key_pinnacle_color(struct IR_i2c *ir, enum rc_proto *protocol,
				  u32 *scancode, u8 *toggle)
{
	/* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
	 *
	 * this is the only value that results in 42 unique
	 * codes < 128
	 */

	return get_key_pinnacle(ir, protocol, scancode, toggle, 2, 0x80, 0x88);
}

void saa7134_input_irq(struct saa7134_dev *dev)
{
	struct saa7134_card_ir *ir;

	if (!dev || !dev->remote)
		return;

	ir = dev->remote;
	if (!ir->running)
		return;

	if (!ir->polling && !ir->raw_decode) {
		build_key(dev);
	} else if (ir->raw_decode) {
		saa7134_raw_decode_irq(dev);
	}
}

static void saa7134_input_timer(unsigned long data)
{
	struct saa7134_dev *dev = (struct saa7134_dev *)data;
	struct saa7134_card_ir *ir = dev->remote;

	build_key(dev);
	mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
}

static int __saa7134_ir_start(void *priv)
{
	struct saa7134_dev *dev = priv;
	struct saa7134_card_ir *ir;

	if (!dev || !dev->remote)
		return -EINVAL;

	ir  = dev->remote;
	if (ir->running)
		return 0;

	/* Moved here from saa7134_input_init1() because the latter
	 * is not called on device resume */
	switch (dev->board) {
	case SAA7134_BOARD_MD2819:
	case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
	case SAA7134_BOARD_AVERMEDIA_305:
	case SAA7134_BOARD_AVERMEDIA_307:
	case SAA7134_BOARD_AVERMEDIA_505:
	case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
	case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
	case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
	case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
	case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
	case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
	case SAA7134_BOARD_AVERMEDIA_M102:
	case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
		/* Without this we won't receive key up events */
		saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
		saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
		break;
	case SAA7134_BOARD_AVERMEDIA_777:
	case SAA7134_BOARD_AVERMEDIA_A16AR:
		/* Without this we won't receive key up events */
		saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
		saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
		break;
	case SAA7134_BOARD_AVERMEDIA_A16D:
		/* Without this we won't receive key up events */
		saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
		saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
		break;
	case SAA7134_BOARD_GOTVIEW_7135:
		saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
		break;
	}

	ir->running = true;

	if (ir->polling) {
		setup_timer(&ir->timer, saa7134_input_timer,
			    (unsigned long)dev);
		ir->timer.expires = jiffies + HZ;
		add_timer(&ir->timer);
	}

	return 0;
}

static void __saa7134_ir_stop(void *priv)
{
	struct saa7134_dev *dev = priv;
	struct saa7134_card_ir *ir;

	if (!dev || !dev->remote)
		return;

	ir  = dev->remote;
	if (!ir->running)
		return;

	if (ir->polling)
		del_timer_sync(&ir->timer);

	ir->running = false;

	return;
}

int saa7134_ir_start(struct saa7134_dev *dev)
{
	if (dev->remote->users)
		return __saa7134_ir_start(dev);

	return 0;
}

void saa7134_ir_stop(struct saa7134_dev *dev)
{
	if (dev->remote->users)
		__saa7134_ir_stop(dev);
}

static int saa7134_ir_open(struct rc_dev *rc)
{
	struct saa7134_dev *dev = rc->priv;

	dev->remote->users++;
	return __saa7134_ir_start(dev);
}

static void saa7134_ir_close(struct rc_dev *rc)
{
	struct saa7134_dev *dev = rc->priv;

	dev->remote->users--;
	if (!dev->remote->users)
		__saa7134_ir_stop(dev);
}

int saa7134_input_init1(struct saa7134_dev *dev)
{
	struct saa7134_card_ir *ir;
	struct rc_dev *rc;
	char *ir_codes = NULL;
	u32 mask_keycode = 0;
	u32 mask_keydown = 0;
	u32 mask_keyup   = 0;
	unsigned polling = 0;
	bool raw_decode  = false;
	int err;

	if (dev->has_remote != SAA7134_REMOTE_GPIO)
		return -ENODEV;
	if (disable_ir)
		return -ENODEV;

	/* detect & configure */
	switch (dev->board) {
	case SAA7134_BOARD_FLYVIDEO2000:
	case SAA7134_BOARD_FLYVIDEO3000:
	case SAA7134_BOARD_FLYTVPLATINUM_FM:
	case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
	case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
		ir_codes     = RC_MAP_FLYVIDEO;
		mask_keycode = 0xEC00000;
		mask_keydown = 0x0040000;
		break;
	case SAA7134_BOARD_CINERGY400:
	case SAA7134_BOARD_CINERGY600:
	case SAA7134_BOARD_CINERGY600_MK3:
		ir_codes     = RC_MAP_CINERGY;
		mask_keycode = 0x00003f;
		mask_keyup   = 0x040000;
		break;
	case SAA7134_BOARD_ECS_TVP3XP:
	case SAA7134_BOARD_ECS_TVP3XP_4CB5:
		ir_codes     = RC_MAP_EZTV;
		mask_keycode = 0x00017c;
		mask_keyup   = 0x000002;
		polling      = 50; // ms
		break;
	case SAA7134_BOARD_KWORLD_XPERT:
	case SAA7134_BOARD_AVACSSMARTTV:
		ir_codes     = RC_MAP_PIXELVIEW;
		mask_keycode = 0x00001F;
		mask_keyup   = 0x000020;
		polling      = 50; // ms
		break;
	case SAA7134_BOARD_MD2819:
	case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
	case SAA7134_BOARD_AVERMEDIA_305:
	case SAA7134_BOARD_AVERMEDIA_307:
	case SAA7134_BOARD_AVERMEDIA_505:
	case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
	case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
	case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
	case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
	case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
	case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
	case SAA7134_BOARD_AVERMEDIA_M102:
	case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
		ir_codes     = RC_MAP_AVERMEDIA;
		mask_keycode = 0x0007C8;
		mask_keydown = 0x000010;
		polling      = 50; // ms
		/* GPIO stuff moved to __saa7134_ir_start() */
		break;
	case SAA7134_BOARD_AVERMEDIA_M135A:
		ir_codes     = RC_MAP_AVERMEDIA_M135A;
		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
		mask_keyup   = 0x0040000;
		mask_keycode = 0xffff;
		raw_decode   = true;
		break;
	case SAA7134_BOARD_AVERMEDIA_M733A:
		ir_codes     = RC_MAP_AVERMEDIA_M733A_RM_K6;
		mask_keydown = 0x0040000;
		mask_keyup   = 0x0040000;
		mask_keycode = 0xffff;
		raw_decode   = true;
		break;
	case SAA7134_BOARD_AVERMEDIA_777:
	case SAA7134_BOARD_AVERMEDIA_A16AR:
		ir_codes     = RC_MAP_AVERMEDIA;
		mask_keycode = 0x02F200;
		mask_keydown = 0x000400;
		polling      = 50; // ms
		/* GPIO stuff moved to __saa7134_ir_start() */
		break;
	case SAA7134_BOARD_AVERMEDIA_A16D:
		ir_codes     = RC_MAP_AVERMEDIA_A16D;
		mask_keycode = 0x02F200;
		mask_keydown = 0x000400;
		polling      = 50; /* ms */
		/* GPIO stuff moved to __saa7134_ir_start() */
		break;
	case SAA7134_BOARD_KWORLD_TERMINATOR:
		ir_codes     = RC_MAP_PIXELVIEW;
		mask_keycode = 0x00001f;
		mask_keyup   = 0x000060;
		polling      = 50; // ms
		break;
	case SAA7134_BOARD_MANLI_MTV001:
	case SAA7134_BOARD_MANLI_MTV002:
		ir_codes     = RC_MAP_MANLI;
		mask_keycode = 0x001f00;
		mask_keyup   = 0x004000;
		polling      = 50; /* ms */
		break;
	case SAA7134_BOARD_BEHOLD_409FM:
	case SAA7134_BOARD_BEHOLD_401:
	case SAA7134_BOARD_BEHOLD_403:
	case SAA7134_BOARD_BEHOLD_403FM:
	case SAA7134_BOARD_BEHOLD_405:
	case SAA7134_BOARD_BEHOLD_405FM:
	case SAA7134_BOARD_BEHOLD_407:
	case SAA7134_BOARD_BEHOLD_407FM:
	case SAA7134_BOARD_BEHOLD_409:
	case SAA7134_BOARD_BEHOLD_505FM:
	case SAA7134_BOARD_BEHOLD_505RDS_MK5:
	case SAA7134_BOARD_BEHOLD_505RDS_MK3:
	case SAA7134_BOARD_BEHOLD_507_9FM:
	case SAA7134_BOARD_BEHOLD_507RDS_MK3:
	case SAA7134_BOARD_BEHOLD_507RDS_MK5:
		ir_codes     = RC_MAP_MANLI;
		mask_keycode = 0x003f00;
		mask_keyup   = 0x004000;
		polling      = 50; /* ms */
		break;
	case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
		ir_codes     = RC_MAP_BEHOLD_COLUMBUS;
		mask_keycode = 0x003f00;
		mask_keyup   = 0x004000;
		polling      = 50; // ms
		break;
	case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
		ir_codes     = RC_MAP_PCTV_SEDNA;
		mask_keycode = 0x001f00;
		mask_keyup   = 0x004000;
		polling      = 50; // ms
		break;
	case SAA7134_BOARD_GOTVIEW_7135:
		ir_codes     = RC_MAP_GOTVIEW7135;
		mask_keycode = 0x0003CC;
		mask_keydown = 0x000010;
		polling	     = 5; /* ms */
		/* GPIO stuff moved to __saa7134_ir_start() */
		break;
	case SAA7134_BOARD_VIDEOMATE_TV_PVR:
	case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
	case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
		ir_codes     = RC_MAP_VIDEOMATE_TV_PVR;
		mask_keycode = 0x00003F;
		mask_keyup   = 0x400000;
		polling      = 50; // ms
		break;
	case SAA7134_BOARD_PROTEUS_2309:
		ir_codes     = RC_MAP_PROTEUS_2309;
		mask_keycode = 0x00007F;
		mask_keyup   = 0x000080;
		polling      = 50; // ms
		break;
	case SAA7134_BOARD_VIDEOMATE_DVBT_300:
	case SAA7134_BOARD_VIDEOMATE_DVBT_200:
		ir_codes     = RC_MAP_VIDEOMATE_TV_PVR;
		mask_keycode = 0x003F00;
		mask_keyup   = 0x040000;
		break;
	case SAA7134_BOARD_FLYDVBS_LR300:
	case SAA7134_BOARD_FLYDVBT_LR301:
	case SAA7134_BOARD_FLYDVBTDUO:
		ir_codes     = RC_MAP_FLYDVB;
		mask_keycode = 0x0001F00;
		mask_keydown = 0x0040000;
		break;
	case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
	case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
	case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
		ir_codes     = RC_MAP_ASUS_PC39;
		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
		mask_keyup   = 0x0040000;
		mask_keycode = 0xffff;
		raw_decode   = true;
		break;
	case SAA7134_BOARD_ASUSTeK_PS3_100:
		ir_codes     = RC_MAP_ASUS_PS3_100;
		mask_keydown = 0x0040000;
		mask_keyup   = 0x0040000;
		mask_keycode = 0xffff;
		raw_decode   = true;
		break;
	case SAA7134_BOARD_ENCORE_ENLTV:
	case SAA7134_BOARD_ENCORE_ENLTV_FM:
		ir_codes     = RC_MAP_ENCORE_ENLTV;
		mask_keycode = 0x00007f;
		mask_keyup   = 0x040000;
		polling      = 50; // ms
		break;
	case SAA7134_BOARD_ENCORE_ENLTV_FM53:
	case SAA7134_BOARD_ENCORE_ENLTV_FM3:
		ir_codes     = RC_MAP_ENCORE_ENLTV_FM53;
		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
		mask_keyup   = 0x0040000;
		mask_keycode = 0xffff;
		raw_decode   = true;
		break;
	case SAA7134_BOARD_10MOONSTVMASTER3:
		ir_codes     = RC_MAP_ENCORE_ENLTV;
		mask_keycode = 0x5f80000;
		mask_keyup   = 0x8000000;
		polling      = 50; //ms
		break;
	case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
		ir_codes     = RC_MAP_GENIUS_TVGO_A11MCE;
		mask_keycode = 0xff;
		mask_keydown = 0xf00000;
		polling = 50; /* ms */
		break;
	case SAA7134_BOARD_REAL_ANGEL_220:
		ir_codes     = RC_MAP_REAL_AUDIO_220_32_KEYS;
		mask_keycode = 0x3f00;
		mask_keyup   = 0x4000;
		polling = 50; /* ms */
		break;
	case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
		ir_codes     = RC_MAP_KWORLD_PLUS_TV_ANALOG;
		mask_keycode = 0x7f;
		polling = 40; /* ms */
		break;
	case SAA7134_BOARD_VIDEOMATE_S350:
		ir_codes     = RC_MAP_VIDEOMATE_S350;
		mask_keycode = 0x003f00;
		mask_keydown = 0x040000;
		break;
	case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
		ir_codes     = RC_MAP_WINFAST;
		mask_keycode = 0x5f00;
		mask_keyup   = 0x020000;
		polling      = 50; /* ms */
		break;
	case SAA7134_BOARD_VIDEOMATE_M1F:
		ir_codes     = RC_MAP_VIDEOMATE_K100;
		mask_keycode = 0x0ff00;
		mask_keyup   = 0x040000;
		break;
	case SAA7134_BOARD_HAUPPAUGE_HVR1150:
	case SAA7134_BOARD_HAUPPAUGE_HVR1120:
		ir_codes     = RC_MAP_HAUPPAUGE;
		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
		mask_keyup   = 0x0040000;
		mask_keycode = 0xffff;
		raw_decode   = true;
		break;
	case SAA7134_BOARD_LEADTEK_WINFAST_TV2100_FM:
		ir_codes     = RC_MAP_LEADTEK_Y04G0051;
		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
		mask_keyup   = 0x0040000;
		mask_keycode = 0xffff;
		raw_decode   = true;
		break;
	}
	if (NULL == ir_codes) {
		pr_err("Oops: IR config error [card=%d]\n", dev->board);
		return -ENODEV;
	}

	ir = kzalloc(sizeof(*ir), GFP_KERNEL);
	rc = rc_allocate_device(RC_DRIVER_SCANCODE);
	if (!ir || !rc) {
		err = -ENOMEM;
		goto err_out_free;
	}

	ir->dev = rc;
	dev->remote = ir;

	/* init hardware-specific stuff */
	ir->mask_keycode = mask_keycode;
	ir->mask_keydown = mask_keydown;
	ir->mask_keyup   = mask_keyup;
	ir->polling      = polling;
	ir->raw_decode	 = raw_decode;

	/* init input device */
	snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
		 saa7134_boards[dev->board].name);
	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
		 pci_name(dev->pci));

	rc->priv = dev;
	rc->open = saa7134_ir_open;
	rc->close = saa7134_ir_close;
	if (raw_decode) {
		rc->driver_type = RC_DRIVER_IR_RAW;
		rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
	}

	rc->device_name = ir->name;
	rc->input_phys = ir->phys;
	rc->input_id.bustype = BUS_PCI;
	rc->input_id.version = 1;
	if (dev->pci->subsystem_vendor) {
		rc->input_id.vendor  = dev->pci->subsystem_vendor;
		rc->input_id.product = dev->pci->subsystem_device;
	} else {
		rc->input_id.vendor  = dev->pci->vendor;
		rc->input_id.product = dev->pci->device;
	}
	rc->dev.parent = &dev->pci->dev;
	rc->map_name = ir_codes;
	rc->driver_name = MODULE_NAME;
	rc->min_timeout = 1;
	rc->timeout = IR_DEFAULT_TIMEOUT;
	rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT;

	err = rc_register_device(rc);
	if (err)
		goto err_out_free;

	return 0;

err_out_free:
	rc_free_device(rc);
	dev->remote = NULL;
	kfree(ir);
	return err;
}

void saa7134_input_fini(struct saa7134_dev *dev)
{
	if (NULL == dev->remote)
		return;

	saa7134_ir_stop(dev);
	rc_unregister_device(dev->remote->dev);
	kfree(dev->remote);
	dev->remote = NULL;
}

void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
{
	struct i2c_board_info info;
	struct i2c_msg msg_msi = {
		.addr = 0x50,
		.flags = I2C_M_RD,
		.len = 0,
		.buf = NULL,
	};
	int rc;

	if (disable_ir) {
		input_dbg("IR has been disabled, not probing for i2c remote\n");
		return;
	}

	memset(&info, 0, sizeof(struct i2c_board_info));
	memset(&dev->init_data, 0, sizeof(dev->init_data));
	strlcpy(info.type, "ir_video", I2C_NAME_SIZE);

	switch (dev->board) {
	case SAA7134_BOARD_PINNACLE_PCTV_110i:
	case SAA7134_BOARD_PINNACLE_PCTV_310i:
		dev->init_data.name = "Pinnacle PCTV";
		if (pinnacle_remote == 0) {
			dev->init_data.get_key = get_key_pinnacle_color;
			dev->init_data.ir_codes = RC_MAP_PINNACLE_COLOR;
			info.addr = 0x47;
		} else {
			dev->init_data.get_key = get_key_pinnacle_grey;
			dev->init_data.ir_codes = RC_MAP_PINNACLE_GREY;
			info.addr = 0x47;
		}
		break;
	case SAA7134_BOARD_UPMOST_PURPLE_TV:
		dev->init_data.name = "Purple TV";
		dev->init_data.get_key = get_key_purpletv;
		dev->init_data.ir_codes = RC_MAP_PURPLETV;
		info.addr = 0x7a;
		break;
	case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
		dev->init_data.name = "MSI TV@nywhere Plus";
		dev->init_data.get_key = get_key_msi_tvanywhere_plus;
		dev->init_data.ir_codes = RC_MAP_MSI_TVANYWHERE_PLUS;
		/*
		 * MSI TV@nyware Plus requires more frequent polling
		 * otherwise it will miss some keypresses
		 */
		dev->init_data.polling_interval = 50;
		info.addr = 0x30;
		/* MSI TV@nywhere Plus controller doesn't seem to
		   respond to probes unless we read something from
		   an existing device. Weird...
		   REVISIT: might no longer be needed */
		rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
		input_dbg("probe 0x%02x @ %s: %s\n",
			msg_msi.addr, dev->i2c_adap.name,
			(1 == rc) ? "yes" : "no");
		break;
	case SAA7134_BOARD_SNAZIO_TVPVR_PRO:
		dev->init_data.name = "SnaZio* TVPVR PRO";
		dev->init_data.get_key = get_key_msi_tvanywhere_plus;
		dev->init_data.ir_codes = RC_MAP_MSI_TVANYWHERE_PLUS;
		/*
		 * MSI TV@nyware Plus requires more frequent polling
		 * otherwise it will miss some keypresses
		 */
		dev->init_data.polling_interval = 50;
		info.addr = 0x30;
		/*
		 * MSI TV@nywhere Plus controller doesn't seem to
		 *  respond to probes unless we read something from
		 *  an existing device. Weird...
		 * REVISIT: might no longer be needed
		 */
		rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
		input_dbg("probe 0x%02x @ %s: %s\n",
			msg_msi.addr, dev->i2c_adap.name,
			(rc == 1) ? "yes" : "no");
		break;
	case SAA7134_BOARD_KWORLD_PC150U:
		/* copied and modified from MSI TV@nywhere Plus */
		dev->init_data.name = "Kworld PC150-U";
		dev->init_data.get_key = get_key_kworld_pc150u;
		dev->init_data.ir_codes = RC_MAP_KWORLD_PC150U;
		info.addr = 0x30;
		/* MSI TV@nywhere Plus controller doesn't seem to
		   respond to probes unless we read something from
		   an existing device. Weird...
		   REVISIT: might no longer be needed */
		rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
		input_dbg("probe 0x%02x @ %s: %s\n",
			msg_msi.addr, dev->i2c_adap.name,
			(1 == rc) ? "yes" : "no");
		break;
	case SAA7134_BOARD_HAUPPAUGE_HVR1110:
		dev->init_data.name = "HVR 1110";
		dev->init_data.get_key = get_key_hvr1110;
		dev->init_data.ir_codes = RC_MAP_HAUPPAUGE;
		info.addr = 0x71;
		break;
	case SAA7134_BOARD_BEHOLD_607FM_MK3:
	case SAA7134_BOARD_BEHOLD_607FM_MK5:
	case SAA7134_BOARD_BEHOLD_609FM_MK3:
	case SAA7134_BOARD_BEHOLD_609FM_MK5:
	case SAA7134_BOARD_BEHOLD_607RDS_MK3:
	case SAA7134_BOARD_BEHOLD_607RDS_MK5:
	case SAA7134_BOARD_BEHOLD_609RDS_MK3:
	case SAA7134_BOARD_BEHOLD_609RDS_MK5:
	case SAA7134_BOARD_BEHOLD_M6:
	case SAA7134_BOARD_BEHOLD_M63:
	case SAA7134_BOARD_BEHOLD_M6_EXTRA:
	case SAA7134_BOARD_BEHOLD_H6:
	case SAA7134_BOARD_BEHOLD_X7:
	case SAA7134_BOARD_BEHOLD_H7:
	case SAA7134_BOARD_BEHOLD_A7:
		dev->init_data.name = "BeholdTV";
		dev->init_data.get_key = get_key_beholdm6xx;
		dev->init_data.ir_codes = RC_MAP_BEHOLD;
		dev->init_data.type = RC_PROTO_BIT_NECX;
		info.addr = 0x2d;
		break;
	case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
	case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
		info.addr = 0x40;
		break;
	case SAA7134_BOARD_AVERMEDIA_A706:
		info.addr = 0x41;
		break;
	case SAA7134_BOARD_FLYDVB_TRIO:
		dev->init_data.name = "FlyDVB Trio";
		dev->init_data.get_key = get_key_flydvb_trio;
		dev->init_data.ir_codes = RC_MAP_FLYDVB;
		info.addr = 0x0b;
		break;
	default:
		input_dbg("No I2C IR support for board %x\n", dev->board);
		return;
	}

	if (dev->init_data.name)
		info.platform_data = &dev->init_data;
	i2c_new_device(&dev->i2c_adap, &info);
}

static int saa7134_raw_decode_irq(struct saa7134_dev *dev)
{
	struct saa7134_card_ir *ir = dev->remote;
	int space;

	/* Generate initial event */
	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
	space = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
	ir_raw_event_store_edge(dev->remote->dev, !space);

	return 1;
}