Linux Audio

Check our new training course

Embedded Linux Audio

Check our new training course
with Creative Commons CC-BY-SA
lecture materials

Bootlin logo

Elixir Cross Referencer

Loading...
   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
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
/*
 * Programming the mspx4xx sound processor family
 *
 * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
 *
 * what works and what doesn't:
 *
 *  AM-Mono
 *      Support for Hauppauge cards added (decoding handled by tuner) added by
 *      Frederic Crozat <fcrozat@mail.dotcom.fr>
 *
 *  FM-Mono
 *      should work. The stereo modes are backward compatible to FM-mono,
 *      therefore FM-Mono should be allways available.
 *
 *  FM-Stereo (B/G, used in germany)
 *      should work, with autodetect
 *
 *  FM-Stereo (satellite)
 *      should work, no autodetect (i.e. default is mono, but you can
 *      switch to stereo -- untested)
 *
 *  NICAM (B/G, L , used in UK, Scandinavia, Spain and France)
 *      should work, with autodetect. Support for NICAM was added by
 *      Pekka Pietikainen <pp@netppl.fi>
 *
 * TODO:
 *   - better SAT support
 *
 * 980623  Thomas Sailer (sailer@ife.ee.ethz.ch)
 *         using soundcore instead of OSS
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */


#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/videodev.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <media/audiochip.h>
#include <linux/kthread.h>
#include <linux/suspend.h>
#include "msp3400.h"

/* ---------------------------------------------------------------------- */

MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
MODULE_AUTHOR("Gerd Knorr");
MODULE_LICENSE("GPL");

/* module parameters */
static int opmode   = OPMODE_AUTO;
int msp_debug;		 /* msp_debug output */
int msp_once;		 /* no continous stereo monitoring */
int msp_amsound;	 /* hard-wire AM sound at 6.5 Hz (france),
			    the autoscan seems work well only with FM... */
int msp_standard = 1;    /* Override auto detect of audio msp_standard, if needed. */
int msp_dolby;

int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual
					(msp34xxg only) 0x00a0-0x03c0 */

/* read-only */
module_param(opmode,           int, 0444);

/* read-write */
module_param_named(once,msp_once,                      bool, 0644);
module_param_named(debug,msp_debug,                    int,  0644);
module_param_named(stereo_threshold,msp_stereo_thresh, int,  0644);
module_param_named(standard,msp_standard,              int,  0644);
module_param_named(amsound,msp_amsound,                bool, 0644);
module_param_named(dolby,msp_dolby,                    bool, 0644);

MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
MODULE_PARM_DESC(once, "No continuous stereo monitoring");
MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
MODULE_PARM_DESC(dolby, "Activates Dolby processsing");

/* ---------------------------------------------------------------------- */

/* control subaddress */
#define I2C_MSP_CONTROL 0x00
/* demodulator unit subaddress */
#define I2C_MSP_DEM     0x10
/* DSP unit subaddress */
#define I2C_MSP_DSP     0x12

/* Addresses to scan */
static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
I2C_CLIENT_INSMOD;

/* ----------------------------------------------------------------------- */
/* functions for talking to the MSP3400C Sound processor                   */

int msp_reset(struct i2c_client *client)
{
	/* reset and read revision code */
	static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
	static u8 reset_on[3]  = { I2C_MSP_CONTROL, 0x00, 0x00 };
	static u8 write[3]     = { I2C_MSP_DSP + 1, 0x00, 0x1e };
	u8 read[2];
	struct i2c_msg reset[2] = {
		{ client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
		{ client->addr, I2C_M_IGNORE_NAK, 3, reset_on  },
	};
	struct i2c_msg test[2] = {
		{ client->addr, 0,        3, write },
		{ client->addr, I2C_M_RD, 2, read  },
	};

	v4l_dbg(3, msp_debug, client, "msp_reset\n");
	if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
	    i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
	    i2c_transfer(client->adapter, test, 2) != 2) {
		v4l_err(client, "chip reset failed\n");
		return -1;
	}
	return 0;
}

static int msp_read(struct i2c_client *client, int dev, int addr)
{
	int err, retval;
	u8 write[3];
	u8 read[2];
	struct i2c_msg msgs[2] = {
		{ client->addr, 0,        3, write },
		{ client->addr, I2C_M_RD, 2, read  }
	};

	write[0] = dev + 1;
	write[1] = addr >> 8;
	write[2] = addr & 0xff;

	for (err = 0; err < 3; err++) {
		if (i2c_transfer(client->adapter, msgs, 2) == 2)
			break;
		v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
		       dev, addr);
		current->state = TASK_INTERRUPTIBLE;
		schedule_timeout(msecs_to_jiffies(10));
	}
	if (err == 3) {
		v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
		msp_reset(client);
		return -1;
	}
	retval = read[0] << 8 | read[1];
	v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
	return retval;
}

int msp_read_dem(struct i2c_client *client, int addr)
{
	return msp_read(client, I2C_MSP_DEM, addr);
}

int msp_read_dsp(struct i2c_client *client, int addr)
{
	return msp_read(client, I2C_MSP_DSP, addr);
}

static int msp_write(struct i2c_client *client, int dev, int addr, int val)
{
	int err;
	u8 buffer[5];

	buffer[0] = dev;
	buffer[1] = addr >> 8;
	buffer[2] = addr &  0xff;
	buffer[3] = val  >> 8;
	buffer[4] = val  &  0xff;

	v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
	for (err = 0; err < 3; err++) {
		if (i2c_master_send(client, buffer, 5) == 5)
			break;
		v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
		       dev, addr);
		current->state = TASK_INTERRUPTIBLE;
		schedule_timeout(msecs_to_jiffies(10));
	}
	if (err == 3) {
		v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
		msp_reset(client);
		return -1;
	}
	return 0;
}

int msp_write_dem(struct i2c_client *client, int addr, int val)
{
	return msp_write(client, I2C_MSP_DEM, addr, val);
}

int msp_write_dsp(struct i2c_client *client, int addr, int val)
{
	return msp_write(client, I2C_MSP_DSP, addr, val);
}

/* ----------------------------------------------------------------------- *
 * bits  9  8  5 - SCART DSP input Select:
 *       0  0  0 - SCART 1 to DSP input (reset position)
 *       0  1  0 - MONO to DSP input
 *       1  0  0 - SCART 2 to DSP input
 *       1  1  1 - Mute DSP input
 *
 * bits 11 10  6 - SCART 1 Output Select:
 *       0  0  0 - undefined (reset position)
 *       0  1  0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
 *       1  0  0 - MONO input to SCART 1 Output
 *       1  1  0 - SCART 1 DA to SCART 1 Output
 *       0  0  1 - SCART 2 DA to SCART 1 Output
 *       0  1  1 - SCART 1 Input to SCART 1 Output
 *       1  1  1 - Mute SCART 1 Output
 *
 * bits 13 12  7 - SCART 2 Output Select (for devices with 2 Output SCART):
 *       0  0  0 - SCART 1 DA to SCART 2 Output (reset position)
 *       0  1  0 - SCART 1 Input to SCART 2 Output
 *       1  0  0 - MONO input to SCART 2 Output
 *       0  0  1 - SCART 2 DA to SCART 2 Output
 *       0  1  1 - SCART 2 Input to SCART 2 Output
 *       1  1  0 - Mute SCART 2 Output
 *
 * Bits 4 to 0 should be zero.
 * ----------------------------------------------------------------------- */

static int scarts[3][9] = {
	/* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
	/* SCART DSP Input select */
	{ 0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
	/* SCART1 Output select */
	{ 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
	/* SCART2 Output select */
	{ 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
};

static char *scart_names[] = {
	"mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
};

void msp_set_scart(struct i2c_client *client, int in, int out)
{
	struct msp_state *state = i2c_get_clientdata(client);

	state->in_scart=in;

	if (in >= 1 && in <= 8 && out >= 0 && out <= 2) {
		if (-1 == scarts[out][in])
			return;

		state->acb &= ~scarts[out][SCART_MASK];
		state->acb |=  scarts[out][in];
	} else
		state->acb = 0xf60; /* Mute Input and SCART 1 Output */

	v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
						scart_names[in], out, state->acb);
	msp_write_dsp(client, 0x13, state->acb);

	/* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
	msp_write_dem(client, 0x40, state->i2s_mode);
}

void msp_set_mute(struct i2c_client *client)
{
	struct msp_state *state = i2c_get_clientdata(client);

	v4l_dbg(1, msp_debug, client, "mute audio\n");
	msp_write_dsp(client, 0x0000, 0);
	msp_write_dsp(client, 0x0007, 1);
	if (state->has_scart2_out_volume)
		msp_write_dsp(client, 0x0040, 1);
	if (state->has_headphones)
		msp_write_dsp(client, 0x0006, 0);
}

void msp_set_audio(struct i2c_client *client)
{
	struct msp_state *state = i2c_get_clientdata(client);
	int bal = 0, bass, treble, loudness;
	int val = 0;

	if (!state->muted)
		val = (state->volume * 0x7f / 65535) << 8;

	v4l_dbg(1, msp_debug, client, "mute=%s volume=%d\n",
		state->muted ? "on" : "off", state->volume);

	msp_write_dsp(client, 0x0000, val);
	msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
	if (state->has_scart2_out_volume)
		msp_write_dsp(client, 0x0040, state->muted ? 0x1 : (val | 0x1));
	if (state->has_headphones)
		msp_write_dsp(client, 0x0006, val);
	if (!state->has_sound_processing)
		return;

	if (val)
		bal = (u8)((state->balance / 256) - 128);
	bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
	treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
	loudness = state->loudness ? ((5 * 4) << 8) : 0;

	v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
		state->balance, state->bass, state->treble, state->loudness);

	msp_write_dsp(client, 0x0001, bal << 8);
	msp_write_dsp(client, 0x0002, bass);
	msp_write_dsp(client, 0x0003, treble);
	msp_write_dsp(client, 0x0004, loudness);
	if (!state->has_headphones)
		return;
	msp_write_dsp(client, 0x0030, bal << 8);
	msp_write_dsp(client, 0x0031, bass);
	msp_write_dsp(client, 0x0032, treble);
	msp_write_dsp(client, 0x0033, loudness);
}

int msp_modus(struct i2c_client *client)
{
	struct msp_state *state = i2c_get_clientdata(client);

	if (state->radio) {
		v4l_dbg(1, msp_debug, client, "video mode selected to Radio\n");
		return 0x0003;
	}

	if (state->v4l2_std & V4L2_STD_PAL) {
		v4l_dbg(1, msp_debug, client, "video mode selected to PAL\n");

#if 1
		/* experimental: not sure this works with all chip versions */
		return 0x7003;
#else
		/* previous value, try this if it breaks ... */
		return 0x1003;
#endif
	}
	if (state->v4l2_std & V4L2_STD_NTSC) {
		v4l_dbg(1, msp_debug, client, "video mode selected to NTSC\n");
		return 0x2003;
	}
	if (state->v4l2_std & V4L2_STD_SECAM) {
		v4l_dbg(1, msp_debug, client, "video mode selected to SECAM\n");
		return 0x0003;
	}
	return 0x0003;
}

/* ------------------------------------------------------------------------ */


static void msp_wake_thread(struct i2c_client *client)
{
	struct msp_state *state = i2c_get_clientdata(client);

	if (NULL == state->kthread)
		return;
	msp_set_mute(client);
	state->watch_stereo = 0;
	state->restart = 1;
	wake_up_interruptible(&state->wq);
}

int msp_sleep(struct msp_state *state, int timeout)
{
	DECLARE_WAITQUEUE(wait, current);

	add_wait_queue(&state->wq, &wait);
	if (!kthread_should_stop()) {
		if (timeout < 0) {
			set_current_state(TASK_INTERRUPTIBLE);
			schedule();
		} else {
			schedule_timeout_interruptible
						(msecs_to_jiffies(timeout));
		}
	}

	remove_wait_queue(&state->wq, &wait);
	try_to_freeze();
	return state->restart;
}

/* ------------------------------------------------------------------------ */

static int msp_mode_v4l2_to_v4l1(int rxsubchans)
{
	int mode = 0;

	if (rxsubchans & V4L2_TUNER_SUB_STEREO)
		mode |= VIDEO_SOUND_STEREO;
	if (rxsubchans & V4L2_TUNER_SUB_LANG2)
		mode |= VIDEO_SOUND_LANG2;
	if (rxsubchans & V4L2_TUNER_SUB_LANG1)
		mode |= VIDEO_SOUND_LANG1;
	if (mode == 0)
		mode |= VIDEO_SOUND_MONO;
	return mode;
}

static int msp_mode_v4l1_to_v4l2(int mode)
{
	if (mode & VIDEO_SOUND_STEREO)
		return V4L2_TUNER_MODE_STEREO;
	if (mode & VIDEO_SOUND_LANG2)
		return V4L2_TUNER_MODE_LANG2;
	if (mode & VIDEO_SOUND_LANG1)
		return V4L2_TUNER_MODE_LANG1;
	return V4L2_TUNER_MODE_MONO;
}

static void msp_any_detect_stereo(struct i2c_client *client)
{
	struct msp_state *state  = i2c_get_clientdata(client);

	switch (state->opmode) {
	case OPMODE_MANUAL:
	case OPMODE_AUTODETECT:
		autodetect_stereo(client);
		break;
	case OPMODE_AUTOSELECT:
		msp34xxg_detect_stereo(client);
		break;
	}
}

static struct v4l2_queryctrl msp_qctrl_std[] = {
	{
		.id            = V4L2_CID_AUDIO_VOLUME,
		.name          = "Volume",
		.minimum       = 0,
		.maximum       = 65535,
		.step          = 65535/100,
		.default_value = 58880,
		.flags         = 0,
		.type          = V4L2_CTRL_TYPE_INTEGER,
	},{
		.id            = V4L2_CID_AUDIO_MUTE,
		.name          = "Mute",
		.minimum       = 0,
		.maximum       = 1,
		.step          = 1,
		.default_value = 1,
		.flags         = 0,
		.type          = V4L2_CTRL_TYPE_BOOLEAN,
	},
};

static struct v4l2_queryctrl msp_qctrl_sound_processing[] = {
	{
		.id            = V4L2_CID_AUDIO_BALANCE,
		.name          = "Balance",
		.minimum       = 0,
		.maximum       = 65535,
		.step          = 65535/100,
		.default_value = 32768,
		.flags         = 0,
		.type          = V4L2_CTRL_TYPE_INTEGER,
	},{
		.id            = V4L2_CID_AUDIO_BASS,
		.name          = "Bass",
		.minimum       = 0,
		.maximum       = 65535,
		.step          = 65535/100,
		.default_value = 32768,
		.type          = V4L2_CTRL_TYPE_INTEGER,
	},{
		.id            = V4L2_CID_AUDIO_TREBLE,
		.name          = "Treble",
		.minimum       = 0,
		.maximum       = 65535,
		.step          = 65535/100,
		.default_value = 32768,
		.type          = V4L2_CTRL_TYPE_INTEGER,
	},{
		.id            = V4L2_CID_AUDIO_LOUDNESS,
		.name          = "Loudness",
		.minimum       = 0,
		.maximum       = 1,
		.step          = 1,
		.default_value = 1,
		.flags         = 0,
		.type          = V4L2_CTRL_TYPE_BOOLEAN,
	},
};


static void msp_any_set_audmode(struct i2c_client *client, int audmode)
{
	struct msp_state *state = i2c_get_clientdata(client);

	switch (state->opmode) {
	case OPMODE_MANUAL:
	case OPMODE_AUTODETECT:
		state->watch_stereo = 0;
		msp3400c_setstereo(client, audmode);
		break;
	case OPMODE_AUTOSELECT:
		msp34xxg_set_audmode(client, audmode);
		break;
	}
}

static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
{
	struct msp_state *state = i2c_get_clientdata(client);

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_VOLUME:
		ctrl->value = state->volume;
		break;

	case V4L2_CID_AUDIO_MUTE:
		ctrl->value = state->muted;
		break;

	case V4L2_CID_AUDIO_BALANCE:
		if (!state->has_sound_processing)
			return -EINVAL;
		ctrl->value = state->balance;
		break;

	case V4L2_CID_AUDIO_BASS:
		if (!state->has_sound_processing)
			return -EINVAL;
		ctrl->value = state->bass;
		break;

	case V4L2_CID_AUDIO_TREBLE:
		if (!state->has_sound_processing)
			return -EINVAL;
		ctrl->value = state->treble;
		break;

	case V4L2_CID_AUDIO_LOUDNESS:
		if (!state->has_sound_processing)
			return -EINVAL;
		ctrl->value = state->loudness;
		break;

	default:
		return -EINVAL;
	}
	return 0;
}

static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
{
	struct msp_state *state = i2c_get_clientdata(client);

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_VOLUME:
		state->volume = ctrl->value;
		if (state->volume == 0)
			state->balance = 32768;
		break;

	case V4L2_CID_AUDIO_MUTE:
		if (ctrl->value < 0 || ctrl->value >= 2)
			return -ERANGE;
		state->muted = ctrl->value;
		break;

	case V4L2_CID_AUDIO_BASS:
		if (!state->has_sound_processing)
			return -EINVAL;
		state->bass = ctrl->value;
		break;

	case V4L2_CID_AUDIO_TREBLE:
		if (!state->has_sound_processing)
			return -EINVAL;
		state->treble = ctrl->value;
		break;

	case V4L2_CID_AUDIO_LOUDNESS:
		if (!state->has_sound_processing)
			return -EINVAL;
		state->loudness = ctrl->value;
		break;

	case V4L2_CID_AUDIO_BALANCE:
		if (!state->has_sound_processing)
			return -EINVAL;
		state->balance = ctrl->value;
		break;

	default:
		return -EINVAL;
	}
	msp_set_audio(client);
	return 0;
}

static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
	struct msp_state *state = i2c_get_clientdata(client);
	u16 *sarg = arg;
	int scart = 0;

	if (msp_debug >= 2)
		v4l_i2c_print_ioctl(client, cmd);

	switch (cmd) {
	case AUDC_SET_INPUT:
		if (*sarg == state->input)
			break;
		state->input = *sarg;
		switch (*sarg) {
		case AUDIO_RADIO:
			/* Hauppauge uses IN2 for the radio */
			state->mode = MSP_MODE_FM_RADIO;
			scart       = SCART_IN2;
			break;
		case AUDIO_EXTERN_1:
			/* IN1 is often used for external input ... */
			state->mode = MSP_MODE_EXTERN;
			scart       = SCART_IN1;
			break;
		case AUDIO_EXTERN_2:
			/* ... sometimes it is IN2 through ;) */
			state->mode = MSP_MODE_EXTERN;
			scart       = SCART_IN2;
			break;
		case AUDIO_TUNER:
			state->mode = -1;
			break;
		default:
			if (*sarg & AUDIO_MUTE)
				msp_set_scart(client, SCART_MUTE, 0);
			break;
		}
		if (scart) {
			state->rxsubchans = V4L2_TUNER_SUB_STEREO;
			state->audmode = V4L2_TUNER_MODE_STEREO;
			msp_set_scart(client, scart, 0);
			msp_write_dsp(client, 0x000d, 0x1900);
			if (state->opmode != OPMODE_AUTOSELECT)
				msp3400c_setstereo(client, state->audmode);
		}
		msp_wake_thread(client);
		break;

	case AUDC_SET_RADIO:
		if (state->radio)
			return 0;
		state->radio = 1;
		v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
		state->watch_stereo = 0;
		switch (state->opmode) {
		case OPMODE_MANUAL:
			/* set msp3400 to FM radio mode */
			msp3400c_setmode(client, MSP_MODE_FM_RADIO);
			msp3400c_setcarrier(client, MSP_CARRIER(10.7),
					    MSP_CARRIER(10.7));
			msp_set_audio(client);
			break;
		case OPMODE_AUTODETECT:
		case OPMODE_AUTOSELECT:
			/* the thread will do for us */
			msp_wake_thread(client);
			break;
		}
		break;

	/* --- v4l ioctls --- */
	/* take care: bttv does userspace copying, we'll get a
	   kernel pointer here... */
	case VIDIOCGAUDIO:
	{
		struct video_audio *va = arg;

		va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
		if (state->has_sound_processing)
			va->flags |= VIDEO_AUDIO_BALANCE |
				VIDEO_AUDIO_BASS |
				VIDEO_AUDIO_TREBLE;
		if (state->muted)
			va->flags |= VIDEO_AUDIO_MUTE;
		va->volume = state->volume;
		va->balance = state->volume ? state->balance : 32768;
		va->bass = state->bass;
		va->treble = state->treble;

		if (state->radio)
			break;
		if (state->opmode == OPMODE_AUTOSELECT)
			msp_any_detect_stereo(client);
		va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
		break;
	}

	case VIDIOCSAUDIO:
	{
		struct video_audio *va = arg;

		state->muted = (va->flags & VIDEO_AUDIO_MUTE);
		state->volume = va->volume;
		state->balance = va->balance;
		state->bass = va->bass;
		state->treble = va->treble;
		msp_set_audio(client);

		if (va->mode != 0 && state->radio == 0)
			msp_any_set_audmode(client, msp_mode_v4l1_to_v4l2(va->mode));
		break;
	}

	case VIDIOCSCHAN:
	{
		struct video_channel *vc = arg;
		int update = 0;
		v4l2_std_id std;

		if (state->radio)
			update = 1;
		state->radio = 0;
		if (vc->norm == VIDEO_MODE_PAL)
			std = V4L2_STD_PAL;
		else if (vc->norm == VIDEO_MODE_SECAM)
			std = V4L2_STD_SECAM;
		else
			std = V4L2_STD_NTSC;
		if (std != state->v4l2_std) {
			state->v4l2_std = std;
			update = 1;
		}
		if (update)
			msp_wake_thread(client);
		break;
	}

	case VIDIOCSFREQ:
	case VIDIOC_S_FREQUENCY:
	{
		/* new channel -- kick audio carrier scan */
		msp_wake_thread(client);
		break;
	}

	/* msp34xx specific */
	case MSP_SET_MATRIX:
	{
		struct msp_matrix *mspm = arg;

		msp_set_scart(client, mspm->input, mspm->output);
		break;
	}

	/* --- v4l2 ioctls --- */
	case VIDIOC_S_STD:
	{
		v4l2_std_id *id = arg;
		int update = state->radio || state->v4l2_std != *id;

		state->v4l2_std = *id;
		state->radio = 0;
		if (update)
			msp_wake_thread(client);
		return 0;
	}

	case VIDIOC_ENUMINPUT:
	{
		struct v4l2_input *i = arg;

		if (i->index != 0)
			return -EINVAL;

		i->type = V4L2_INPUT_TYPE_TUNER;
		switch (i->index) {
		case AUDIO_RADIO:
			strcpy(i->name, "Radio");
			break;
		case AUDIO_EXTERN_1:
			strcpy(i->name, "Extern 1");
			break;
		case AUDIO_EXTERN_2:
			strcpy(i->name, "Extern 2");
			break;
		case AUDIO_TUNER:
			strcpy(i->name, "Television");
			break;
		default:
			return -EINVAL;
		}
		return 0;
	}

	case VIDIOC_G_AUDIO:
	{
		struct v4l2_audio *a = arg;

		memset(a, 0, sizeof(*a));

		switch (a->index) {
		case AUDIO_RADIO:
			strcpy(a->name, "Radio");
			break;
		case AUDIO_EXTERN_1:
			strcpy(a->name, "Extern 1");
			break;
		case AUDIO_EXTERN_2:
			strcpy(a->name, "Extern 2");
			break;
		case AUDIO_TUNER:
			strcpy(a->name, "Television");
			break;
		default:
			return -EINVAL;
		}

		msp_any_detect_stereo(client);
		if (state->audmode == V4L2_TUNER_MODE_STEREO) {
			a->capability = V4L2_AUDCAP_STEREO;
		}

		break;
	}

	case VIDIOC_S_AUDIO:
	{
		struct v4l2_audio *sarg = arg;

		switch (sarg->index) {
		case AUDIO_RADIO:
			/* Hauppauge uses IN2 for the radio */
			state->mode = MSP_MODE_FM_RADIO;
			scart       = SCART_IN2;
			break;
		case AUDIO_EXTERN_1:
			/* IN1 is often used for external input ... */
			state->mode = MSP_MODE_EXTERN;
			scart       = SCART_IN1;
			break;
		case AUDIO_EXTERN_2:
			/* ... sometimes it is IN2 through ;) */
			state->mode = MSP_MODE_EXTERN;
			scart       = SCART_IN2;
			break;
		case AUDIO_TUNER:
			state->mode = -1;
			break;
		}
		if (scart) {
			state->rxsubchans = V4L2_TUNER_SUB_STEREO;
			state->audmode = V4L2_TUNER_MODE_STEREO;
			msp_set_scart(client, scart, 0);
			msp_write_dsp(client, 0x000d, 0x1900);
		}
		if (sarg->capability == V4L2_AUDCAP_STEREO) {
			state->audmode = V4L2_TUNER_MODE_STEREO;
		} else {
			state->audmode &= ~V4L2_TUNER_MODE_STEREO;
		}
		msp_any_set_audmode(client, state->audmode);
		msp_wake_thread(client);
		break;
	}

	case VIDIOC_G_TUNER:
	{
		struct v4l2_tuner *vt = arg;

		if (state->radio)
			break;
		if (state->opmode == OPMODE_AUTOSELECT)
			msp_any_detect_stereo(client);
		vt->audmode    = state->audmode;
		vt->rxsubchans = state->rxsubchans;
		vt->capability = V4L2_TUNER_CAP_STEREO |
			V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
		break;
	}

	case VIDIOC_S_TUNER:
	{
		struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;

		if (state->radio)
			break;
		/* only set audmode */
		if (vt->audmode != -1 && vt->audmode != 0)
			msp_any_set_audmode(client, vt->audmode);
		break;
	}

	case VIDIOC_G_AUDOUT:
	{
		struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
		int idx = a->index;

		memset(a, 0, sizeof(*a));

		switch (idx) {
		case 0:
			strcpy(a->name, "Scart1 Out");
			break;
		case 1:
			strcpy(a->name, "Scart2 Out");
			break;
		case 2:
			strcpy(a->name, "I2S Out");
			break;
		default:
			return -EINVAL;
		}
		break;

	}

	case VIDIOC_S_AUDOUT:
	{
		struct v4l2_audioout *a = (struct v4l2_audioout *)arg;

		if (a->index < 0 || a->index > 2)
			return -EINVAL;

		v4l_dbg(1, msp_debug, client, "Setting audio out on msp34xx to input %i\n", a->index);
		msp_set_scart(client, state->in_scart, a->index + 1);

		break;
	}

	case VIDIOC_INT_I2S_CLOCK_FREQ:
	{
		u32 *a = (u32 *)arg;

		v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);

		switch (*a) {
			case 1024000:
				state->i2s_mode = 0;
				break;
			case 2048000:
				state->i2s_mode = 1;
				break;
			default:
				return -EINVAL;
		}
		break;
	}

	case VIDIOC_QUERYCTRL:
	{
		struct v4l2_queryctrl *qc = arg;
		int i;

		for (i = 0; i < ARRAY_SIZE(msp_qctrl_std); i++)
			if (qc->id && qc->id == msp_qctrl_std[i].id) {
				memcpy(qc, &msp_qctrl_std[i], sizeof(*qc));
				return 0;
			}
		if (!state->has_sound_processing)
			return -EINVAL;
		for (i = 0; i < ARRAY_SIZE(msp_qctrl_sound_processing); i++)
			if (qc->id && qc->id == msp_qctrl_sound_processing[i].id) {
				memcpy(qc, &msp_qctrl_sound_processing[i], sizeof(*qc));
				return 0;
			}
		return -EINVAL;
	}

	case VIDIOC_G_CTRL:
		return msp_get_ctrl(client, arg);

	case VIDIOC_S_CTRL:
		return msp_set_ctrl(client, arg);

	case VIDIOC_LOG_STATUS:
	{
		const char *p;

		if (state->opmode == OPMODE_AUTOSELECT)
			msp_any_detect_stereo(client);
		v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
				client->name, state->rev1, state->rev2);
		v4l_info(client, "Audio:    volume %d%s\n",
				state->volume, state->muted ? " (muted)" : "");
		if (state->has_sound_processing) {
			v4l_info(client, "Audio:    balance %d bass %d treble %d loudness %s\n",
					state->balance, state->bass, state->treble,
					state->loudness ? "on" : "off");
		}
		switch (state->mode) {
		case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
		case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
		case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
		case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
		case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
		case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
		case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
		case MSP_MODE_BTSC: p = "BTSC"; break;
		case MSP_MODE_EXTERN: p = "External input"; break;
		default: p = "unknown"; break;
		}
		if (state->opmode == OPMODE_MANUAL) {
			v4l_info(client, "Mode:     %s (%s%s)\n", p,
				(state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
				(state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
		} else {
			v4l_info(client, "Mode:     %s\n", p);
			v4l_info(client, "Standard: %s (%s%s)\n",
				msp_standard_std_name(state->std),
				(state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
				(state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
		}
		v4l_info(client, "ACB:      0x%04x\n", state->acb);
		break;
	}

	default:
		/* unknown */
		return -EINVAL;
	}
	return 0;
}

static int msp_suspend(struct device * dev, pm_message_t state)
{
	struct i2c_client *client = container_of(dev, struct i2c_client, dev);

	v4l_dbg(1, msp_debug, client, "suspend\n");
	msp_reset(client);
	return 0;
}

static int msp_resume(struct device * dev)
{
	struct i2c_client *client = container_of(dev, struct i2c_client, dev);

	v4l_dbg(1, msp_debug, client, "resume\n");
	msp_wake_thread(client);
	return 0;
}

/* ----------------------------------------------------------------------- */

static struct i2c_driver i2c_driver;

static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
{
	struct i2c_client *client;
	struct msp_state *state;
	int (*thread_func)(void *data) = NULL;
	int msp_hard;
	int msp_family;
	int msp_revision;
	int msp_product, msp_prod_hi, msp_prod_lo;
	int msp_rom;

	client = kmalloc(sizeof(*client), GFP_KERNEL);
	if (client == NULL)
		return -ENOMEM;
	memset(client, 0, sizeof(*client));
	client->addr = address;
	client->adapter = adapter;
	client->driver = &i2c_driver;
	snprintf(client->name, sizeof(client->name) - 1, "msp3400");

	if (msp_reset(client) == -1) {
		v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
		kfree(client);
		return -1;
	}

	state = kmalloc(sizeof(*state), GFP_KERNEL);
	if (state == NULL) {
		kfree(client);
		return -ENOMEM;
	}
	i2c_set_clientdata(client, state);

	memset(state, 0, sizeof(*state));
	state->v4l2_std = V4L2_STD_NTSC;
	state->volume = 58880;	/* 0db gain */
	state->balance = 32768;	/* 0db gain */
	state->bass = 32768;
	state->treble = 32768;
	state->loudness = 0;
	state->input = -1;
	state->muted = 0;
	state->i2s_mode = 0;
	init_waitqueue_head(&state->wq);

	state->rev1 = msp_read_dsp(client, 0x1e);
	if (state->rev1 != -1)
		state->rev2 = msp_read_dsp(client, 0x1f);
	v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
	if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
		v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
		kfree(state);
		kfree(client);
		return -1;
	}

	msp_set_audio(client);

	msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
	msp_product = (state->rev2 >> 8) & 0xff;
	msp_prod_hi = msp_product / 10;
	msp_prod_lo = msp_product % 10;
	msp_revision = (state->rev1 & 0x0f) + '@';
	msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
	msp_rom = state->rev2 & 0x1f;
	snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
			msp_family, msp_product,
			msp_revision, msp_hard, msp_rom);

	/* Has NICAM support: all mspx41x and mspx45x products have NICAM */
	state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
	/* Has radio support: was added with revision G */
	state->has_radio = msp_revision >= 'G';
	/* Has headphones output: not for stripped down products */
	state->has_headphones = msp_prod_lo < 5;
	/* Has scart4 input: not in pre D revisions, not in stripped D revs */
	state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
	/* Has scart2 and scart3 inputs and scart2 output: not in stripped
	   down products of the '3' family */
	state->has_scart23_in_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
	/* Has scart2 a volume control? Not in pre-D revisions. */
	state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart23_in_scart2_out;
	/* Has a configurable i2s out? */
	state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
	/* Has subwoofer output: not in pre-D revs and not in stripped down products */
	state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
	/* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
	   stripped down products */
	state->has_sound_processing = msp_prod_lo < 7;
	/* Has Virtual Dolby Surround: only in msp34x1 */
	state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
	/* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
	state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;

	state->opmode = opmode;
	if (state->opmode == OPMODE_AUTO) {
		/* MSP revision G and up have both autodetect and autoselect */
		if (msp_revision >= 'G')
			state->opmode = OPMODE_AUTOSELECT;
		/* MSP revision D and up have autodetect */
		else if (msp_revision >= 'D')
			state->opmode = OPMODE_AUTODETECT;
		else
			state->opmode = OPMODE_MANUAL;
	}

	/* hello world :-) */
	v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
	v4l_info(client, "%s ", client->name);
	if (state->has_nicam && state->has_radio)
		printk("supports nicam and radio, ");
	else if (state->has_nicam)
		printk("supports nicam, ");
	else if (state->has_radio)
		printk("supports radio, ");
	printk("mode is ");

	/* version-specific initialization */
	switch (state->opmode) {
	case OPMODE_MANUAL:
		printk("manual");
		thread_func = msp3400c_thread;
		break;
	case OPMODE_AUTODETECT:
		printk("autodetect");
		thread_func = msp3410d_thread;
		break;
	case OPMODE_AUTOSELECT:
		printk("autodetect and autoselect");
		thread_func = msp34xxg_thread;
		break;
	}
	printk("\n");

	/* startup control thread if needed */
	if (thread_func) {
		state->kthread = kthread_run(thread_func, client, "msp34xx");

		if (state->kthread == NULL)
			v4l_warn(client, "kernel_thread() failed\n");
		msp_wake_thread(client);
	}

	/* done */
	i2c_attach_client(client);

	return 0;
}

static int msp_probe(struct i2c_adapter *adapter)
{
	if (adapter->class & I2C_CLASS_TV_ANALOG)
		return i2c_probe(adapter, &addr_data, msp_attach);
	return 0;
}

static int msp_detach(struct i2c_client *client)
{
	struct msp_state *state = i2c_get_clientdata(client);
	int err;

	/* shutdown control thread */
	if (state->kthread) {
		state->restart = 1;
		kthread_stop(state->kthread);
	}
	msp_reset(client);

	err = i2c_detach_client(client);
	if (err) {
		return err;
	}

	kfree(state);
	kfree(client);
	return 0;
}

/* ----------------------------------------------------------------------- */

/* i2c implementation */
static struct i2c_driver i2c_driver = {
	.id             = I2C_DRIVERID_MSP3400,
	.attach_adapter = msp_probe,
	.detach_client  = msp_detach,
	.command        = msp_command,
	.driver = {
		.name    = "msp3400",
		.suspend = msp_suspend,
		.resume  = msp_resume,
	},
};

static int __init msp3400_init_module(void)
{
	return i2c_add_driver(&i2c_driver);
}

static void __exit msp3400_cleanup_module(void)
{
	i2c_del_driver(&i2c_driver);
}

module_init(msp3400_init_module);
module_exit(msp3400_cleanup_module);

/*
 * Overrides for Emacs so that we follow Linus's tabbing style.
 * ---------------------------------------------------------------------------
 * Local variables:
 * c-basic-offset: 8
 * End:
 */