summaryrefslogtreecommitdiffstats
path: root/drivers/media/video/tuner-simple.c
blob: 34ba6d13b586fe6da508169f7691bbc012e3dcd4 (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
/*
 *
 * i2c tv tuner chip device driver
 * controls all those simple 4-control-bytes style tuners.
 */
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/videodev.h>
#include <media/tuner.h>

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

/* tv standard selection for Temic 4046 FM5
   this value takes the low bits of control byte 2
   from datasheet Rev.01, Feb.00
     standard     BG      I       L       L2      D
     picture IF   38.9    38.9    38.9    33.95   38.9
     sound 1      33.4    32.9    32.4    40.45   32.4
     sound 2      33.16
     NICAM        33.05   32.348  33.05           33.05
 */
#define TEMIC_SET_PAL_I         0x05
#define TEMIC_SET_PAL_DK        0x09
#define TEMIC_SET_PAL_L         0x0a // SECAM ?
#define TEMIC_SET_PAL_L2        0x0b // change IF !
#define TEMIC_SET_PAL_BG        0x0c

/* tv tuner system standard selection for Philips FQ1216ME
   this value takes the low bits of control byte 2
   from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
     standard 		BG	DK	I	L	L`
     picture carrier	38.90	38.90	38.90	38.90	33.95
     colour		34.47	34.47	34.47	34.47	38.38
     sound 1		33.40	32.40	32.90	32.40	40.45
     sound 2		33.16	-	-	-	-
     NICAM		33.05	33.05	32.35	33.05	39.80
 */
#define PHILIPS_SET_PAL_I	0x01 /* Bit 2 always zero !*/
#define PHILIPS_SET_PAL_BGDK	0x09
#define PHILIPS_SET_PAL_L2	0x0a
#define PHILIPS_SET_PAL_L	0x0b

/* system switching for Philips FI1216MF MK2
   from datasheet "1996 Jul 09",
    standard         BG     L      L'
    picture carrier  38.90  38.90  33.95
    colour	     34.47  34.37  38.38
    sound 1          33.40  32.40  40.45
    sound 2          33.16  -      -
    NICAM            33.05  33.05  39.80
 */
#define PHILIPS_MF_SET_BG	0x01 /* Bit 2 must be zero, Bit 3 is system output */
#define PHILIPS_MF_SET_PAL_L	0x03 // France
#define PHILIPS_MF_SET_PAL_L2	0x02 // L'

/* Control byte */

#define TUNER_RATIO_MASK        0x06 /* Bit cb1:cb2 */
#define TUNER_RATIO_SELECT_50   0x00
#define TUNER_RATIO_SELECT_32   0x02
#define TUNER_RATIO_SELECT_166  0x04
#define TUNER_RATIO_SELECT_62   0x06

#define TUNER_CHARGE_PUMP       0x40  /* Bit cb6 */

/* Status byte */

#define TUNER_POR	  0x80
#define TUNER_FL          0x40
#define TUNER_MODE        0x38
#define TUNER_AFC         0x07
#define TUNER_SIGNAL      0x07
#define TUNER_STEREO      0x10

#define TUNER_PLL_LOCKED   0x40
#define TUNER_STEREO_MK3   0x04

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

struct tunertype
{
	char *name;
	unsigned char Vendor;
	unsigned char Type;

	unsigned short thresh1;  /*  band switch VHF_LO <=> VHF_HI  */
	unsigned short thresh2;  /*  band switch VHF_HI <=> UHF     */
	unsigned char VHF_L;
	unsigned char VHF_H;
	unsigned char UHF;
	unsigned char config;
	unsigned short IFPCoff; /* 622.4=16*38.90 MHz PAL,
				   732  =16*45.75 NTSCi,
				   940  =16*58.75 NTSC-Japan
				   704  =16*44    ATSC */
};

/*
 *	The floats in the tuner struct are computed at compile time
 *	by gcc and cast back to integers. Thus we don't violate the
 *	"no float in kernel" rule.
 */
static struct tunertype tuners[] = {
	/* 0-9 */
	{ "Temic PAL (4002 FH5)", TEMIC, PAL,
	  16*140.25,16*463.25,0x02,0x04,0x01,0x8e,623},
	{ "Philips PAL_I (FI1246 and compatibles)", Philips, PAL_I,
	  16*140.25,16*463.25,0xa0,0x90,0x30,0x8e,623},
	{ "Philips NTSC (FI1236,FM1236 and compatibles)", Philips, NTSC,
	  16*157.25,16*451.25,0xA0,0x90,0x30,0x8e,732},
	{ "Philips (SECAM+PAL_BG) (FI1216MF, FM1216MF, FR1216MF)", Philips, SECAM,
	  16*168.25,16*447.25,0xA7,0x97,0x37,0x8e,623},
	{ "NoTuner", NoTuner, NOTUNER,
	  0,0,0x00,0x00,0x00,0x00,0x00},
	{ "Philips PAL_BG (FI1216 and compatibles)", Philips, PAL,
	  16*168.25,16*447.25,0xA0,0x90,0x30,0x8e,623},
	{ "Temic NTSC (4032 FY5)", TEMIC, NTSC,
	  16*157.25,16*463.25,0x02,0x04,0x01,0x8e,732},
	{ "Temic PAL_I (4062 FY5)", TEMIC, PAL_I,
	  16*170.00,16*450.00,0x02,0x04,0x01,0x8e,623},
	{ "Temic NTSC (4036 FY5)", TEMIC, NTSC,
	  16*157.25,16*463.25,0xa0,0x90,0x30,0x8e,732},
	{ "Alps HSBH1", TEMIC, NTSC,
	  16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},

	/* 10-19 */
	{ "Alps TSBE1", TEMIC, PAL,
	  16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
	{ "Alps TSBB5", Alps, PAL_I, /* tested (UK UHF) with Modulartech MM205 */
	  16*133.25,16*351.25,0x01,0x02,0x08,0x8e,632},
	{ "Alps TSBE5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
	  16*133.25,16*351.25,0x01,0x02,0x08,0x8e,622},
	{ "Alps TSBC5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
	  16*133.25,16*351.25,0x01,0x02,0x08,0x8e,608},
	{ "Temic PAL_BG (4006FH5)", TEMIC, PAL,
	  16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
	{ "Alps TSCH6", Alps, NTSC,
	  16*137.25,16*385.25,0x14,0x12,0x11,0x8e,732},
	{ "Temic PAL_DK (4016 FY5)", TEMIC, PAL,
	  16*168.25,16*456.25,0xa0,0x90,0x30,0x8e,623},
	{ "Philips NTSC_M (MK2)", Philips, NTSC,
	  16*160.00,16*454.00,0xa0,0x90,0x30,0x8e,732},
	{ "Temic PAL_I (4066 FY5)", TEMIC, PAL_I,
	  16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
	{ "Temic PAL* auto (4006 FN5)", TEMIC, PAL,
	  16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},

	/* 20-29 */
	{ "Temic PAL_BG (4009 FR5) or PAL_I (4069 FR5)", TEMIC, PAL,
	  16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
	{ "Temic NTSC (4039 FR5)", TEMIC, NTSC,
	  16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
	{ "Temic PAL/SECAM multi (4046 FM5)", TEMIC, PAL,
	  16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
	{ "Philips PAL_DK (FI1256 and compatibles)", Philips, PAL,
	  16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
	{ "Philips PAL/SECAM multi (FQ1216ME)", Philips, PAL,
	  16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
	{ "LG PAL_I+FM (TAPC-I001D)", LGINNOTEK, PAL_I,
	  16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
	{ "LG PAL_I (TAPC-I701D)", LGINNOTEK, PAL_I,
	  16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
	{ "LG NTSC+FM (TPI8NSR01F)", LGINNOTEK, NTSC,
	  16*210.00,16*497.00,0xa0,0x90,0x30,0x8e,732},
	{ "LG PAL_BG+FM (TPI8PSB01D)", LGINNOTEK, PAL,
	  16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
	{ "LG PAL_BG (TPI8PSB11D)", LGINNOTEK, PAL,
	  16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},

	/* 30-39 */
	{ "Temic PAL* auto + FM (4009 FN5)", TEMIC, PAL,
	  16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
	{ "SHARP NTSC_JP (2U5JF5540)", SHARP, NTSC, /* 940=16*58.75 NTSC@Japan */
	  16*137.25,16*317.25,0x01,0x02,0x08,0x8e,940 },
	{ "Samsung PAL TCPM9091PD27", Samsung, PAL, /* from sourceforge v3tv */
	  16*169,16*464,0xA0,0x90,0x30,0x8e,623},
	{ "MT20xx universal", Microtune, PAL|NTSC,
	  /* see mt20xx.c for details */ },
	{ "Temic PAL_BG (4106 FH5)", TEMIC, PAL,
	  16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
	{ "Temic PAL_DK/SECAM_L (4012 FY5)", TEMIC, PAL,
	  16*140.25, 16*463.25, 0x02,0x04,0x01,0x8e,623},
	{ "Temic NTSC (4136 FY5)", TEMIC, NTSC,
	  16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
	{ "LG PAL (newer TAPC series)", LGINNOTEK, PAL,
	  16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,623},
	{ "Philips PAL/SECAM multi (FM1216ME MK3)", Philips, PAL,
	  16*158.00,16*442.00,0x01,0x02,0x04,0x8e,623 },
	{ "LG NTSC (newer TAPC series)", LGINNOTEK, NTSC,
	  16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,732},

	/* 40-49 */
	{ "HITACHI V7-J180AT", HITACHI, NTSC,
	  16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,940 },
	{ "Philips PAL_MK (FI1216 MK)", Philips, PAL,
	  16*140.25,16*463.25,0x01,0xc2,0xcf,0x8e,623},
	{ "Philips 1236D ATSC/NTSC daul in", Philips, ATSC,
	  16*157.25,16*454.00,0xa0,0x90,0x30,0x8e,732},
	{ "Philips NTSC MK3 (FM1236MK3 or FM1236/F)", Philips, NTSC,
	  16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732},
	{ "Philips 4 in 1 (ATI TV Wonder Pro/Conexant)", Philips, NTSC,
	  16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732},
	{ "Microtune 4049 FM5", Microtune, PAL,
	  16*141.00,16*464.00,0xa0,0x90,0x30,0x8e,623},
	{ "Panasonic VP27s/ENGE4324D", Panasonic, NTSC,
	  16*160.00,16*454.00,0x01,0x02,0x08,0xce,940},
	{ "LG NTSC (TAPE series)", LGINNOTEK, NTSC,
	  16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732 },
	{ "Tenna TNF 8831 BGFF)", Philips, PAL,
	  16*161.25,16*463.25,0xa0,0x90,0x30,0x8e,623},
	{ "Microtune 4042 FI5 ATSC/NTSC dual in", Microtune, NTSC,
	  16*162.00,16*457.00,0xa2,0x94,0x31,0x8e,732},

	/* 50-59 */
	{ "TCL 2002N", TCL, NTSC,
	  16*172.00,16*448.00,0x01,0x02,0x08,0x8e,732},
	{ "Philips PAL/SECAM_D (FM 1256 I-H3)", Philips, PAL,
	  16*160.00,16*442.00,0x01,0x02,0x04,0x8e,623 },
	{ "Thomson DDT 7610 (ATSC/NTSC)", THOMSON, ATSC,
	  16*157.25,16*454.00,0x39,0x3a,0x3c,0x8e,732},
	{ "Philips FQ1286", Philips, NTSC,
	  16*160.00,16*454.00,0x41,0x42,0x04,0x8e,940}, /* UHF band untested */
	{ "tda8290+75", Philips, PAL|NTSC,
	  /* see tda8290.c for details */ },
	{ "TCL 2002MB", TCL, PAL,
	  16*170.00, 16*450.00, 0x01,0x02,0x08,0xce,623},
	{ "Philips PAL/SECAM multi (FQ1216AME MK4)", Philips, PAL,
	  16*160.00,16*442.00,0x01,0x02,0x04,0xce,623 },
	{ "Philips FQ1236A MK4", Philips, NTSC,
	  16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732 },
	{ "Ymec TVision TVF-8531MF/8831MF/8731MF", Philips, NTSC,
	  16*160.00,16*454.00,0xa0,0x90,0x30,0x8e,732},
	{ "Ymec TVision TVF-5533MF", Philips, NTSC,
	  16*160.00,16*454.00,0x01,0x02,0x04,0x8e,732},

	/* 60-68 */
	{ "Thomson DDT 7611 (ATSC/NTSC)", THOMSON, ATSC,
	  16*157.25,16*454.00,0x39,0x3a,0x3c,0x8e,732},
	{ "Tena TNF9533-D/IF/TNF9533-B/DF", Philips, PAL,
	  16*160.25,16*464.25,0x01,0x02,0x04,0x8e,623},
	{ "Philips TEA5767HN FM Radio", Philips, RADIO,
	  /* see tea5767.c for details */},
	{ "Philips FMD1216ME MK3 Hybrid Tuner", Philips, PAL,
	  16*160.00,16*442.00,0x51,0x52,0x54,0x86,623 },
	{ "LG TDVS-H062F/TUA6034", LGINNOTEK, ATSC,
	  16*160.00,16*455.00,0x01,0x02,0x04,0x8e,732},
	{ "Ymec TVF66T5-B/DFF", Philips, PAL,
	  16*160.25,16*464.25,0x01,0x02,0x08,0x8e,623},
	{ "LG NTSC (TALN mini series)", LGINNOTEK, NTSC,
	  16*137.25,16*373.25,0x01,0x02,0x08,0x8e,732 },
	{ "Philips TD1316 Hybrid Tuner", Philips, PAL,
	  16*160.00,16*442.00,0xa1,0xa2,0xa4,0xc8,623 },
	{ "Philips TUV1236D ATSC/NTSC dual in", Philips, ATSC,
	  16*157.25,16*454.00,0x01,0x02,0x04,0xce,732 },
};

unsigned const int tuner_count = ARRAY_SIZE(tuners);

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

static int tuner_getstatus(struct i2c_client *c)
{
	unsigned char byte;

	if (1 != i2c_master_recv(c,&byte,1))
		return 0;

	return byte;
}

static int tuner_signal(struct i2c_client *c)
{
	return (tuner_getstatus(c) & TUNER_SIGNAL) << 13;
}

static int tuner_stereo(struct i2c_client *c)
{
	int stereo, status;
	struct tuner *t = i2c_get_clientdata(c);

	status = tuner_getstatus (c);

	switch (t->type) {
		case TUNER_PHILIPS_FM1216ME_MK3:
    		case TUNER_PHILIPS_FM1236_MK3:
		case TUNER_PHILIPS_FM1256_IH3:
			stereo = ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
			break;
		default:
			stereo = status & TUNER_STEREO;
	}

	return stereo;
}


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

static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
{
	struct tuner *t = i2c_get_clientdata(c);
	u8 config;
	u16 div;
	struct tunertype *tun;
	unsigned char buffer[4];
	int rc;

	tun = &tuners[t->type];
	if (freq < tun->thresh1) {
		config = tun->VHF_L;
		tuner_dbg("tv: VHF lowrange\n");
	} else if (freq < tun->thresh2) {
		config = tun->VHF_H;
		tuner_dbg("tv: VHF high range\n");
	} else {
		config = tun->UHF;
		tuner_dbg("tv: UHF range\n");
	}


	/* tv norm specific stuff for multi-norm tuners */
	switch (t->type) {
	case TUNER_PHILIPS_SECAM: // FI1216MF
		/* 0x01 -> ??? no change ??? */
		/* 0x02 -> PAL BDGHI / SECAM L */
		/* 0x04 -> ??? PAL others / SECAM others ??? */
		config &= ~0x02;
		if (t->std & V4L2_STD_SECAM)
			config |= 0x02;
		break;

	case TUNER_TEMIC_4046FM5:
		config &= ~0x0f;

		if (t->std & V4L2_STD_PAL_BG) {
			config |= TEMIC_SET_PAL_BG;

		} else if (t->std & V4L2_STD_PAL_I) {
			config |= TEMIC_SET_PAL_I;

		} else if (t->std & V4L2_STD_PAL_DK) {
			config |= TEMIC_SET_PAL_DK;

		} else if (t->std & V4L2_STD_SECAM_L) {
			config |= TEMIC_SET_PAL_L;

		}
		break;

	case TUNER_PHILIPS_FQ1216ME:
		config &= ~0x0f;

		if (t->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
			config |= PHILIPS_SET_PAL_BGDK;

		} else if (t->std & V4L2_STD_PAL_I) {
			config |= PHILIPS_SET_PAL_I;

		} else if (t->std & V4L2_STD_SECAM_L) {
			config |= PHILIPS_SET_PAL_L;

		}
		break;

	case TUNER_PHILIPS_ATSC:
		/* 0x00 -> ATSC antenna input 1 */
		/* 0x01 -> ATSC antenna input 2 */
		/* 0x02 -> NTSC antenna input 1 */
		/* 0x03 -> NTSC antenna input 2 */
		config &= ~0x03;
		if (!(t->std & V4L2_STD_ATSC))
			config |= 2;
		/* FIXME: input */
		break;

	case TUNER_MICROTUNE_4042FI5:
		/* Set the charge pump for fast tuning */
		tun->config |= TUNER_CHARGE_PUMP;
		break;

	case TUNER_PHILIPS_TUV1236D:
		/* 0x40 -> ATSC antenna input 1 */
		/* 0x48 -> ATSC antenna input 2 */
		/* 0x00 -> NTSC antenna input 1 */
		/* 0x08 -> NTSC antenna input 2 */
		buffer[0] = 0x14;
		buffer[1] = 0x00;
		buffer[2] = 0x17;
		buffer[3] = 0x00;
		config &= ~0x40;
		if (t->std & V4L2_STD_ATSC) {
			config |= 0x40;
			buffer[1] = 0x04;
		}
		/* set to the correct mode (analog or digital) */
		u8 tuneraddr;
		tuneraddr = c->addr;
		c->addr = 0x0a;
		if (2 != (rc = i2c_master_send(c,&buffer[0],2)))
			tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
		if (2 != (rc = i2c_master_send(c,&buffer[2],2)))
			tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
		c->addr = tuneraddr;
		/* FIXME: input */
		break;
	}

	/*
	 * Philips FI1216MK2 remark from specification :
	 * for channel selection involving band switching, and to ensure
	 * smooth tuning to the desired channel without causing
	 * unnecessary charge pump action, it is recommended to consider
	 * the difference between wanted channel frequency and the
	 * current channel frequency.  Unnecessary charge pump action
	 * will result in very low tuning voltage which may drive the
	 * oscillator to extreme conditions.
	 *
	 * Progfou: specification says to send config data before
	 * frequency in case (wanted frequency < current frequency).
	 */

	div=freq + tun->IFPCoff;
	if (t->type == TUNER_PHILIPS_SECAM && freq < t->freq) {
		buffer[0] = tun->config;
		buffer[1] = config;
		buffer[2] = (div>>8) & 0x7f;
		buffer[3] = div      & 0xff;
	} else {
		buffer[0] = (div>>8) & 0x7f;
		buffer[1] = div      & 0xff;
		buffer[2] = tun->config;
		buffer[3] = config;
	}
	tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
		  buffer[0],buffer[1],buffer[2],buffer[3]);

	if (4 != (rc = i2c_master_send(c,buffer,4)))
		tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);

	if (t->type == TUNER_MICROTUNE_4042FI5) {
		// FIXME - this may also work for other tuners
		unsigned long timeout = jiffies + msecs_to_jiffies(1);
		u8 status_byte = 0;

		/* Wait until the PLL locks */
		for (;;) {
			if (time_after(jiffies,timeout))
				return;
			if (1 != (rc = i2c_master_recv(c,&status_byte,1))) {
				tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
				break;
			}
			if (status_byte & TUNER_PLL_LOCKED)
				break;
			udelay(10);
		}

		/* Set the charge pump for optimized phase noise figure */
		tun->config &= ~TUNER_CHARGE_PUMP;
		buffer[0] = (div>>8) & 0x7f;
		buffer[1] = div      & 0xff;
		buffer[2] = tun->config;
		buffer[3] = config;
		tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
		       buffer[0],buffer[1],buffer[2],buffer[3]);

		if (4 != (rc = i2c_master_send(c,buffer,4)))
			tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
	}
}

static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
{
	struct tunertype *tun;
	struct tuner *t = i2c_get_clientdata(c);
	unsigned char buffer[4];
	unsigned div;
	int rc;

	tun = &tuners[t->type];
	div = (20 * freq / 16000) + (int)(20*10.7); /* IF 10.7 MHz */
	buffer[2] = (tun->config & ~TUNER_RATIO_MASK) | TUNER_RATIO_SELECT_50; /* 50 kHz step */

	switch (t->type) {
	case TUNER_TENA_9533_DI:
	case TUNER_YMEC_TVF_5533MF:
		tuner_dbg ("This tuner doesn't have FM. Most cards has a TEA5767 for FM\n");
		return;
	case TUNER_PHILIPS_FM1216ME_MK3:
	case TUNER_PHILIPS_FM1236_MK3:
	case TUNER_PHILIPS_FMD1216ME_MK3:
		buffer[3] = 0x19;
		break;
	case TUNER_PHILIPS_FM1256_IH3:
		div = (20 * freq) / 16000 + (int)(33.3 * 20);  /* IF 33.3 MHz */
		buffer[3] = 0x19;
		break;
	case TUNER_LG_PAL_FM:
		buffer[3] = 0xa5;
		break;
	case TUNER_MICROTUNE_4049FM5:
		div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
		buffer[3] = 0xa4;
		break;
	default:
		buffer[3] = 0xa4;
		break;
	}
	buffer[0] = (div>>8) & 0x7f;
	buffer[1] = div      & 0xff;

	tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
	       buffer[0],buffer[1],buffer[2],buffer[3]);

	if (4 != (rc = i2c_master_send(c,buffer,4)))
		tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
}

int default_tuner_init(struct i2c_client *c)
{
	struct tuner *t = i2c_get_clientdata(c);

	tuner_info("type set to %d (%s)\n",
		   t->type, tuners[t->type].name);
	strlcpy(c->name, tuners[t->type].name, sizeof(c->name));

	t->tv_freq    = default_set_tv_freq;
	t->radio_freq = default_set_radio_freq;
	t->has_signal = tuner_signal;
	t->is_stereo  = tuner_stereo;
	t->standby = NULL;

	return 0;
}

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