summaryrefslogtreecommitdiff
path: root/drivers/media/video/tda9887.c
blob: d60fc562aecdc4a1e2d05974cf976e11ec29aaf4 (plain)
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
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/i2c.h>
#include <linux/types.h>
#include <linux/videodev.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/delay.h>

#include <media/audiochip.h>
#include <media/tuner.h>
#include <media/id.h>

/* Chips:
   TDA9885 (PAL, NTSC)
   TDA9886 (PAL, SECAM, NTSC)
   TDA9887 (PAL, SECAM, NTSC, FM Radio)

   found on:
   - Pinnacle PCTV (Jul.2002 Version with MT2032, bttv)
      TDA9887 (world), TDA9885 (USA)
      Note: OP2 of tda988x must be set to 1, else MT2032 is disabled!
   - KNC One TV-Station RDS (saa7134)
*/


/* Addresses to scan */
static unsigned short normal_i2c[] = {
	0x84 >>1,
	0x86 >>1,
	0x96 >>1,
	I2C_CLIENT_END,
};
I2C_CLIENT_INSMOD;

/* insmod options */
static unsigned int debug = 0;
module_param(debug, int, 0644);
MODULE_LICENSE("GPL");

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

#define UNSET       (-1U)
#define PREFIX      "tda9885/6/7: "
#define dprintk     if (debug) printk

struct tda9887 {
	struct i2c_client  client;
	v4l2_std_id        std;
	unsigned int       radio;
	unsigned int       config;
	unsigned int       pinnacle_id;
	unsigned int       using_v4l2;
	unsigned int 	   radio_mode;
};

struct tvnorm {
	v4l2_std_id       std;
	char              *name;
	unsigned char     b;
	unsigned char     c;
	unsigned char     e;
};

static struct i2c_driver driver;
static struct i2c_client client_template;

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

//
// TDA defines
//

//// first reg (b)
#define cVideoTrapBypassOFF     0x00    // bit b0
#define cVideoTrapBypassON      0x01    // bit b0

#define cAutoMuteFmInactive     0x00    // bit b1
#define cAutoMuteFmActive       0x02    // bit b1

#define cIntercarrier           0x00    // bit b2
#define cQSS                    0x04    // bit b2

#define cPositiveAmTV           0x00    // bit b3:4
#define cFmRadio                0x08    // bit b3:4
#define cNegativeFmTV           0x10    // bit b3:4


#define cForcedMuteAudioON      0x20    // bit b5
#define cForcedMuteAudioOFF     0x00    // bit b5

#define cOutputPort1Active      0x00    // bit b6
#define cOutputPort1Inactive    0x40    // bit b6

#define cOutputPort2Active      0x00    // bit b7
#define cOutputPort2Inactive    0x80    // bit b7


//// second reg (c)
#define cDeemphasisOFF          0x00    // bit c5
#define cDeemphasisON           0x20    // bit c5

#define cDeemphasis75           0x00    // bit c6
#define cDeemphasis50           0x40    // bit c6

#define cAudioGain0             0x00    // bit c7
#define cAudioGain6             0x80    // bit c7


//// third reg (e)
#define cAudioIF_4_5             0x00    // bit e0:1
#define cAudioIF_5_5             0x01    // bit e0:1
#define cAudioIF_6_0             0x02    // bit e0:1
#define cAudioIF_6_5             0x03    // bit e0:1


#define cVideoIF_58_75           0x00    // bit e2:4
#define cVideoIF_45_75           0x04    // bit e2:4
#define cVideoIF_38_90           0x08    // bit e2:4
#define cVideoIF_38_00           0x0C    // bit e2:4
#define cVideoIF_33_90           0x10    // bit e2:4
#define cVideoIF_33_40           0x14    // bit e2:4
#define cRadioIF_45_75           0x18    // bit e2:4
#define cRadioIF_38_90           0x1C    // bit e2:4


#define cTunerGainNormal         0x00    // bit e5
#define cTunerGainLow            0x20    // bit e5

#define cGating_18               0x00    // bit e6
#define cGating_36               0x40    // bit e6

#define cAgcOutON                0x80    // bit e7
#define cAgcOutOFF               0x00    // bit e7

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

static struct tvnorm tvnorms[] = {
	{
		.std   = V4L2_STD_PAL_BG,
		.name  = "PAL-BG",
		.b     = ( cNegativeFmTV  |
			   cQSS           ),
		.c     = ( cDeemphasisON  |
			   cDeemphasis50  ),
		.e     = ( cAudioIF_5_5   |
			   cVideoIF_38_90 ),
	},{
		.std   = V4L2_STD_PAL_I,
		.name  = "PAL-I",
		.b     = ( cNegativeFmTV  |
			   cQSS           ),
		.c     = ( cDeemphasisON  |
			   cDeemphasis50  ),
		.e     = ( cAudioIF_6_0   |
			   cVideoIF_38_90 ),
	},{
		.std   = V4L2_STD_PAL_DK,
		.name  = "PAL-DK",
		.b     = ( cNegativeFmTV  |
			   cQSS           ),
		.c     = ( cDeemphasisON  |
			   cDeemphasis50  ),
		.e     = ( cAudioIF_6_5   |
			   cVideoIF_38_00 ),
	},{
		.std   = V4L2_STD_PAL_M | V4L2_STD_PAL_N,
		.name  = "PAL-M/N",
		.b     = ( cNegativeFmTV  |
			   cQSS           ),
		.c     = ( cDeemphasisON  |
			   cDeemphasis75  ),
		.e     = ( cAudioIF_4_5   |
			   cVideoIF_45_75 ),
	},{
		.std   = V4L2_STD_SECAM_L,
		.name  = "SECAM-L",
		.b     = ( cPositiveAmTV  |
			   cQSS           ),
		.e     = ( cAudioIF_6_5   |
			   cVideoIF_38_90 ),
	},{
		.std   = V4L2_STD_SECAM_DK,
		.name  = "SECAM-DK",
		.b     = ( cNegativeFmTV  |
			   cQSS           ),
		.c     = ( cDeemphasisON  |
			   cDeemphasis50  ),
		.e     = ( cAudioIF_6_5   |
			   cVideoIF_38_00 ),
	},{
		.std   = V4L2_STD_NTSC_M,
		.name  = "NTSC-M",
		.b     = ( cNegativeFmTV  |
			   cQSS           ),
		.c     = ( cDeemphasisON  |
			   cDeemphasis50  ),
		.e     = ( cGating_36     |
			   cAudioIF_4_5   |
			   cVideoIF_45_75 ),
	},{
		.std   = V4L2_STD_NTSC_M_JP,
		.name  = "NTSC-JP",
		.b     = ( cNegativeFmTV  |
			   cQSS           ),
		.c     = ( cDeemphasisON  |
			   cDeemphasis50  ),
		.e     = ( cGating_36     |
			   cAudioIF_4_5   |
			   cVideoIF_58_75 ),
	}
};

static struct tvnorm radio_stereo = {
	.name = "Radio Stereo",
	.b    = ( cFmRadio       |
		  cQSS           ),
	.c    = ( cDeemphasisOFF |
		  cAudioGain6 ),
	.e    = ( cAudioIF_5_5   |
		  cRadioIF_38_90 ),
};

static struct tvnorm radio_mono = {
	.name = "Radio Mono",
	.b    = ( cFmRadio       |
		  cQSS           ),
	.c    = ( cDeemphasisON  |
		  cDeemphasis50),
	.e    = ( cAudioIF_5_5   |
		  cRadioIF_38_90 ),
};

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

static void dump_read_message(unsigned char *buf)
{
	static char *afc[16] = {
		"- 12.5 kHz",
		"- 37.5 kHz",
		"- 62.5 kHz",
		"- 87.5 kHz",
		"-112.5 kHz",
		"-137.5 kHz",
		"-162.5 kHz",
		"-187.5 kHz [min]",
		"+187.5 kHz [max]",
		"+162.5 kHz",
		"+137.5 kHz",
		"+112.5 kHz",
		"+ 87.5 kHz",
		"+ 62.5 kHz",
		"+ 37.5 kHz",
		"+ 12.5 kHz",
	};
	printk(PREFIX "read: 0x%2x\n", buf[0]);
	printk("  after power on : %s\n", (buf[0] & 0x01) ? "yes" : "no");
	printk("  afc            : %s\n", afc[(buf[0] >> 1) & 0x0f]);
	printk("  fmif level     : %s\n", (buf[0] & 0x20) ? "high" : "low");
	printk("  afc window     : %s\n", (buf[0] & 0x40) ? "in" : "out");
	printk("  vfi level      : %s\n", (buf[0] & 0x80) ? "high" : "low");
}

static void dump_write_message(unsigned char *buf)
{
	static char *sound[4] = {
		"AM/TV",
		"FM/radio",
		"FM/TV",
		"FM/radio"
	};
	static char *adjust[32] = {
		"-16", "-15", "-14", "-13", "-12", "-11", "-10", "-9",
		"-8",  "-7",  "-6",  "-5",  "-4",  "-3",  "-2",  "-1",
		"0",   "+1",  "+2",  "+3",  "+4",  "+5",  "+6",  "+7",
		"+8",  "+9",  "+10", "+11", "+12", "+13", "+14", "+15"
	};
	static char *deemph[4] = {
		"no", "no", "75", "50"
	};
	static char *carrier[4] = {
		"4.5 MHz",
		"5.5 MHz",
		"6.0 MHz",
		"6.5 MHz / AM"
	};
	static char *vif[8] = {
		"58.75 MHz",
		"45.75 MHz",
		"38.9 MHz",
		"38.0 MHz",
		"33.9 MHz",
		"33.4 MHz",
		"45.75 MHz + pin13",
		"38.9 MHz + pin13",
	};
	static char *rif[4] = {
		"44 MHz",
		"52 MHz",
		"52 MHz",
		"44 MHz",
	};

	printk(PREFIX "write: byte B 0x%02x\n",buf[1]);
	printk("  B0   video mode      : %s\n",
	       (buf[1] & 0x01) ? "video trap" : "sound trap");
	printk("  B1   auto mute fm    : %s\n",
	       (buf[1] & 0x02) ? "yes" : "no");
	printk("  B2   carrier mode    : %s\n",
	       (buf[1] & 0x04) ? "QSS" : "Intercarrier");
	printk("  B3-4 tv sound/radio  : %s\n",
	       sound[(buf[1] & 0x18) >> 3]);
	printk("  B5   force mute audio: %s\n",
	       (buf[1] & 0x20) ? "yes" : "no");
	printk("  B6   output port 1   : %s\n",
	       (buf[1] & 0x40) ? "high (inactive)" : "low (active)");
	printk("  B7   output port 2   : %s\n",
	       (buf[1] & 0x80) ? "high (inactive)" : "low (active)");

	printk(PREFIX "write: byte C 0x%02x\n",buf[2]);
	printk("  C0-4 top adjustment  : %s dB\n", adjust[buf[2] & 0x1f]);
	printk("  C5-6 de-emphasis     : %s\n", deemph[(buf[2] & 0x60) >> 5]);
	printk("  C7   audio gain      : %s\n",
	       (buf[2] & 0x80) ? "-6" : "0");

	printk(PREFIX "write: byte E 0x%02x\n",buf[3]);
	printk("  E0-1 sound carrier   : %s\n",
	       carrier[(buf[3] & 0x03)]);
	printk("  E6   l pll ganting   : %s\n",
	       (buf[3] & 0x40) ? "36" : "13");

	if (buf[1] & 0x08) {
		/* radio */
		printk("  E2-4 video if        : %s\n",
		       rif[(buf[3] & 0x0c) >> 2]);
		printk("  E7   vif agc output  : %s\n",
		       (buf[3] & 0x80)
		       ? ((buf[3] & 0x10) ? "fm-agc radio" : "sif-agc radio")
		       : "fm radio carrier afc");
	} else {
		/* video */
		printk("  E2-4 video if        : %s\n",
		       vif[(buf[3] & 0x1c) >> 2]);
		printk("  E5   tuner gain      : %s\n",
		       (buf[3] & 0x80)
		       ? ((buf[3] & 0x20) ? "external" : "normal")
		       : ((buf[3] & 0x20) ? "minimum"  : "normal"));
		printk("  E7   vif agc output  : %s\n",
		       (buf[3] & 0x80)
		       ? ((buf[3] & 0x20)
			  ? "pin3 port, pin22 vif agc out"
			  : "pin22 port, pin3 vif acg ext in")
		       : "pin3+pin22 port");
	}
	printk("--\n");
}

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

static int tda9887_set_tvnorm(struct tda9887 *t, char *buf)
{
	struct tvnorm *norm = NULL;
	int i;

	if (t->radio) {
		if (t->radio_mode == V4L2_TUNER_MODE_MONO)
			norm = &radio_mono;
		else
			norm = &radio_stereo;
	} else {
		for (i = 0; i < ARRAY_SIZE(tvnorms); i++) {
			if (tvnorms[i].std & t->std) {
				norm = tvnorms+i;
				break;
			}
		}
	}
	if (NULL == norm) {
		dprintk(PREFIX "Oops: no tvnorm entry found\n");
		return -1;
	}

	dprintk(PREFIX "configure for: %s\n",norm->name);
	buf[1] = norm->b;
	buf[2] = norm->c;
	buf[3] = norm->e;
	return 0;
}

static unsigned int port1  = UNSET;
static unsigned int port2  = UNSET;
static unsigned int qss    = UNSET;
static unsigned int adjust = 0x10;
module_param(port1, int, 0644);
module_param(port2, int, 0644);
module_param(qss, int, 0644);
module_param(adjust, int, 0644);

static int tda9887_set_insmod(struct tda9887 *t, char *buf)
{
	if (UNSET != port1) {
		if (port1)
			buf[1] |= cOutputPort1Inactive;
		else
			buf[1] &= ~cOutputPort1Inactive;
	}
	if (UNSET != port2) {
		if (port2)
			buf[1] |= cOutputPort2Inactive;
		else
			buf[1] &= ~cOutputPort2Inactive;
	}

	if (UNSET != qss) {
		if (qss)
			buf[1] |= cQSS;
		else
			buf[1] &= ~cQSS;
	}

	if (adjust >= 0x00 && adjust < 0x20)
		buf[2] |= adjust;
	return 0;
}

static int tda9887_set_config(struct tda9887 *t, char *buf)
{
	if (t->config & TDA9887_PORT1_ACTIVE)
		buf[1] &= ~cOutputPort1Inactive;
	if (t->config & TDA9887_PORT1_INACTIVE)
		buf[1] |= cOutputPort1Inactive;
	if (t->config & TDA9887_PORT2_ACTIVE)
		buf[1] &= ~cOutputPort2Inactive;
	if (t->config & TDA9887_PORT2_INACTIVE)
		buf[1] |= cOutputPort2Inactive;

	if (t->config & TDA9887_QSS)
		buf[1] |= cQSS;
	if (t->config & TDA9887_INTERCARRIER)
		buf[1] &= ~cQSS;

	if (t->config & TDA9887_AUTOMUTE)
		buf[1] |= cAutoMuteFmActive;
	if (t->config & TDA9887_DEEMPHASIS_MASK) {
		buf[2] &= ~0x60;
		switch (t->config & TDA9887_DEEMPHASIS_MASK) {
		case TDA9887_DEEMPHASIS_NONE:
			buf[2] |= cDeemphasisOFF;
			break;
		case TDA9887_DEEMPHASIS_50:
			buf[2] |= cDeemphasisON | cDeemphasis50;
			break;
		case TDA9887_DEEMPHASIS_75:
			buf[2] |= cDeemphasisON | cDeemphasis75;
			break;
		}
	}
	return 0;
}

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

static int tda9887_set_pinnacle(struct tda9887 *t, char *buf)
{
	unsigned int bCarrierMode = UNSET;

	if (t->std & V4L2_STD_625_50) {
		if ((1 == t->pinnacle_id) || (7 == t->pinnacle_id)) {
			bCarrierMode = cIntercarrier;
		} else {
			bCarrierMode = cQSS;
		}
	}
	if (t->std & V4L2_STD_525_60) {
                if ((5 == t->pinnacle_id) || (6 == t->pinnacle_id)) {
			bCarrierMode = cIntercarrier;
		} else {
			bCarrierMode = cQSS;
                }
	}

	if (bCarrierMode != UNSET) {
		buf[1] &= ~0x04;
		buf[1] |= bCarrierMode;
	}
	return 0;
}

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

static char pal[] = "-";
module_param_string(pal, pal, sizeof(pal), 0644);
static char secam[] = "-";
module_param_string(secam, secam, sizeof(secam), 0644);

static int tda9887_fixup_std(struct tda9887 *t)
{
	/* get more precise norm info from insmod option */
	if ((t->std & V4L2_STD_PAL) == V4L2_STD_PAL) {
		switch (pal[0]) {
		case 'b':
		case 'B':
		case 'g':
		case 'G':
			dprintk(PREFIX "insmod fixup: PAL => PAL-BG\n");
			t->std = V4L2_STD_PAL_BG;
			break;
		case 'i':
		case 'I':
			dprintk(PREFIX "insmod fixup: PAL => PAL-I\n");
			t->std = V4L2_STD_PAL_I;
			break;
		case 'd':
		case 'D':
		case 'k':
		case 'K':
			dprintk(PREFIX "insmod fixup: PAL => PAL-DK\n");
			t->std = V4L2_STD_PAL_DK;
			break;
		}
	}
	if ((t->std & V4L2_STD_SECAM) == V4L2_STD_SECAM) {
		switch (secam[0]) {
		case 'd':
		case 'D':
		case 'k':
		case 'K':
			dprintk(PREFIX "insmod fixup: SECAM => SECAM-DK\n");
			t->std = V4L2_STD_SECAM_DK;
			break;
		case 'l':
		case 'L':
			dprintk(PREFIX "insmod fixup: SECAM => SECAM-L\n");
			t->std = V4L2_STD_SECAM_L;
			break;
		}
	}
	return 0;
}

static int tda9887_status(struct tda9887 *t)
{
	unsigned char buf[1];
	int rc;

	memset(buf,0,sizeof(buf));
        if (1 != (rc = i2c_master_recv(&t->client,buf,1)))
                printk(PREFIX "i2c i/o error: rc == %d (should be 1)\n",rc);
	dump_read_message(buf);
	return 0;
}

static int tda9887_configure(struct tda9887 *t)
{
	unsigned char buf[4];
	int rc;

	memset(buf,0,sizeof(buf));
	tda9887_set_tvnorm(t,buf);

	buf[1] |= cOutputPort1Inactive;
	buf[1] |= cOutputPort2Inactive;

	if (UNSET != t->pinnacle_id) {
		tda9887_set_pinnacle(t,buf);
	}
	tda9887_set_config(t,buf);
	tda9887_set_insmod(t,buf);


	dprintk(PREFIX "writing: b=0x%02x c=0x%02x e=0x%02x\n",
		buf[1],buf[2],buf[3]);
	if (debug > 1)
		dump_write_message(buf);

        if (4 != (rc = i2c_master_send(&t->client,buf,4)))
                printk(PREFIX "i2c i/o error: rc == %d (should be 4)\n",rc);

	if (debug > 2) {
		msleep_interruptible(1000);
		tda9887_status(t);
	}
	return 0;
}

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

static int tda9887_attach(struct i2c_adapter *adap, int addr, int kind)
{
	struct tda9887 *t;

        client_template.adapter = adap;
        client_template.addr    = addr;

        printk(PREFIX "chip found @ 0x%x\n", addr<<1);

        if (NULL == (t = kmalloc(sizeof(*t), GFP_KERNEL)))
                return -ENOMEM;
	memset(t,0,sizeof(*t));

	t->client      = client_template;
	t->std         = 0;
	t->pinnacle_id = UNSET;
	t->radio_mode = V4L2_TUNER_MODE_STEREO;

	i2c_set_clientdata(&t->client, t);
	i2c_attach_client(&t->client);

	return 0;
}

static int tda9887_probe(struct i2c_adapter *adap)
{
#ifdef I2C_CLASS_TV_ANALOG
	if (adap->class & I2C_CLASS_TV_ANALOG)
		return i2c_probe(adap, &addr_data, tda9887_attach);
#else
	switch (adap->id) {
	case I2C_HW_B_BT848:
	case I2C_HW_B_RIVA:
	case I2C_HW_SAA7134:
		return i2c_probe(adap, &addr_data, tda9887_attach);
		break;
	}
#endif
	return 0;
}

static int tda9887_detach(struct i2c_client *client)
{
	struct tda9887 *t = i2c_get_clientdata(client);

	i2c_detach_client(client);
	kfree(t);
	return 0;
}

#define SWITCH_V4L2	if (!t->using_v4l2 && debug) \
		          printk(PREFIX "switching to v4l2\n"); \
	                  t->using_v4l2 = 1;
#define CHECK_V4L2	if (t->using_v4l2) { if (debug) \
			  printk(PREFIX "ignore v4l1 call\n"); \
		          return 0; }

static int
tda9887_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
	struct tda9887 *t = i2c_get_clientdata(client);

        switch (cmd) {

	/* --- configuration --- */
	case AUDC_SET_RADIO:
		t->radio = 1;
		tda9887_configure(t);
		break;

	case AUDC_CONFIG_PINNACLE:
	{
		int *i = arg;

		t->pinnacle_id = *i;
		tda9887_configure(t);
		break;
	}
	case TDA9887_SET_CONFIG:
	{
		int *i = arg;

		t->config = *i;
		tda9887_configure(t);
		break;
	}
	/* --- v4l ioctls --- */
	/* take care: bttv does userspace copying, we'll get a
	   kernel pointer here... */
	case VIDIOCSCHAN:
	{
		static const v4l2_std_id map[] = {
			[ VIDEO_MODE_PAL   ] = V4L2_STD_PAL,
			[ VIDEO_MODE_NTSC  ] = V4L2_STD_NTSC_M,
			[ VIDEO_MODE_SECAM ] = V4L2_STD_SECAM,
			[ 4 /* bttv */     ] = V4L2_STD_PAL_M,
			[ 5 /* bttv */     ] = V4L2_STD_PAL_N,
			[ 6 /* bttv */     ] = V4L2_STD_NTSC_M_JP,
		};
		struct video_channel *vc = arg;

		CHECK_V4L2;
		t->radio = 0;
		if (vc->norm < ARRAY_SIZE(map))
			t->std = map[vc->norm];
		tda9887_fixup_std(t);
		tda9887_configure(t);
		break;
	}
	case VIDIOC_S_STD:
	{
		v4l2_std_id *id = arg;

		SWITCH_V4L2;
		t->radio = 0;
		t->std   = *id;
		tda9887_fixup_std(t);
		tda9887_configure(t);
		break;
	}
	case VIDIOC_S_FREQUENCY:
	{
		struct v4l2_frequency *f = arg;

		SWITCH_V4L2;
		if (V4L2_TUNER_ANALOG_TV == f->type) {
			if (t->radio == 0)
				return 0;
			t->radio = 0;
		}
		if (V4L2_TUNER_RADIO == f->type) {
			if (t->radio == 1)
				return 0;
			t->radio = 1;
		}
		tda9887_configure(t);
		break;
	}
	case VIDIOC_G_TUNER:
	{
		static int AFC_BITS_2_kHz[] = {
			-12500,  -37500,  -62500,  -97500,
			-112500, -137500, -162500, -187500,
			187500,  162500,  137500,  112500,
			97500 ,  62500,   37500 ,  12500
		};
		struct v4l2_tuner* tuner = arg;

		if (t->radio) {
			__u8 reg = 0;
			tuner->afc=0;
			if (1 == i2c_master_recv(&t->client,&reg,1))
				tuner->afc = AFC_BITS_2_kHz[(reg>>1)&0x0f];
		}
		break;
	}
	case VIDIOC_S_TUNER:
	{
		struct v4l2_tuner* tuner = arg;

		if (t->radio) {
			t->radio_mode = tuner->audmode;
			tda9887_configure (t);
		}
		break;
	}
	default:
		/* nothing */
		break;
	}
	return 0;
}

static int tda9887_suspend(struct device * dev, pm_message_t state, u32 level)
{
	dprintk("tda9887: suspend\n");
	return 0;
}

static int tda9887_resume(struct device * dev, u32 level)
{
	struct i2c_client *c = container_of(dev, struct i2c_client, dev);
	struct tda9887 *t = i2c_get_clientdata(c);

	dprintk("tda9887: resume\n");
	tda9887_configure(t);
	return 0;
}

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

static struct i2c_driver driver = {
	.owner          = THIS_MODULE,
        .name           = "i2c tda9887 driver",
        .id             = -1, /* FIXME */
        .flags          = I2C_DF_NOTIFY,
        .attach_adapter = tda9887_probe,
        .detach_client  = tda9887_detach,
        .command        = tda9887_command,
	.driver = {
		.suspend = tda9887_suspend,
		.resume  = tda9887_resume,
	},
};
static struct i2c_client client_template =
{
	.name      = "tda9887",
	.flags     = I2C_CLIENT_ALLOW_USE,
        .driver    = &driver,
};

static int __init tda9887_init_module(void)
{
	return i2c_add_driver(&driver);
}

static void __exit tda9887_cleanup_module(void)
{
	i2c_del_driver(&driver);
}

module_init(tda9887_init_module);
module_exit(tda9887_cleanup_module);

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