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[PATCH] vfs: MS_VERBOSE should be MS_SILENT
[linux-2.6/verdex.git] / drivers / media / video / tuner-simple.c
blob5d7abed71674f179ee6797a21b33ab89ee4ea5ff
1 /*
2 *
3 * i2c tv tuner chip device driver
4 * controls all those simple 4-control-bytes style tuners.
5 */
6 #include <linux/delay.h>
7 #include <linux/i2c.h>
8 #include <linux/videodev.h>
9 #include <media/tuner.h>
10
11 static int offset = 0;
12 module_param(offset, int, 0666);
13 MODULE_PARM_DESC(offset,"Allows to specify an offset for tuner");
14
15 /* ---------------------------------------------------------------------- */
16
17 /* tv standard selection for Temic 4046 FM5
18 this value takes the low bits of control byte 2
19 from datasheet Rev.01, Feb.00
20 standard BG I L L2 D
21 picture IF 38.9 38.9 38.9 33.95 38.9
22 sound 1 33.4 32.9 32.4 40.45 32.4
23 sound 2 33.16
24 NICAM 33.05 32.348 33.05 33.05
25 */
26 #define TEMIC_SET_PAL_I 0x05
27 #define TEMIC_SET_PAL_DK 0x09
28 #define TEMIC_SET_PAL_L 0x0a // SECAM ?
29 #define TEMIC_SET_PAL_L2 0x0b // change IF !
30 #define TEMIC_SET_PAL_BG 0x0c
31
32 /* tv tuner system standard selection for Philips FQ1216ME
33 this value takes the low bits of control byte 2
34 from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
35 standard BG DK I L L`
36 picture carrier 38.90 38.90 38.90 38.90 33.95
37 colour 34.47 34.47 34.47 34.47 38.38
38 sound 1 33.40 32.40 32.90 32.40 40.45
39 sound 2 33.16 - - - -
40 NICAM 33.05 33.05 32.35 33.05 39.80
41 */
42 #define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
43 #define PHILIPS_SET_PAL_BGDK 0x09
44 #define PHILIPS_SET_PAL_L2 0x0a
45 #define PHILIPS_SET_PAL_L 0x0b
46
47 /* system switching for Philips FI1216MF MK2
48 from datasheet "1996 Jul 09",
49 standard BG L L'
50 picture carrier 38.90 38.90 33.95
51 colour 34.47 34.37 38.38
52 sound 1 33.40 32.40 40.45
53 sound 2 33.16 - -
54 NICAM 33.05 33.05 39.80
55 */
56 #define PHILIPS_MF_SET_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
57 #define PHILIPS_MF_SET_PAL_L 0x03 // France
58 #define PHILIPS_MF_SET_PAL_L2 0x02 // L'
59
60 /* Control byte */
61
62 #define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */
63 #define TUNER_RATIO_SELECT_50 0x00
64 #define TUNER_RATIO_SELECT_32 0x02
65 #define TUNER_RATIO_SELECT_166 0x04
66 #define TUNER_RATIO_SELECT_62 0x06
67
68 #define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */
69
70 /* Status byte */
71
72 #define TUNER_POR 0x80
73 #define TUNER_FL 0x40
74 #define TUNER_MODE 0x38
75 #define TUNER_AFC 0x07
76 #define TUNER_SIGNAL 0x07
77 #define TUNER_STEREO 0x10
78
79 #define TUNER_PLL_LOCKED 0x40
80 #define TUNER_STEREO_MK3 0x04
81
82 /* ---------------------------------------------------------------------- */
83
84 static int tuner_getstatus(struct i2c_client *c)
85 {
86 unsigned char byte;
87
88 if (1 != i2c_master_recv(c,&byte,1))
89 return 0;
90
91 return byte;
92 }
93
94 static int tuner_signal(struct i2c_client *c)
95 {
96 return (tuner_getstatus(c) & TUNER_SIGNAL) << 13;
97 }
98
99 static int tuner_stereo(struct i2c_client *c)
100 {
101 int stereo, status;
102 struct tuner *t = i2c_get_clientdata(c);
103
104 status = tuner_getstatus (c);
105
106 switch (t->type) {
107 case TUNER_PHILIPS_FM1216ME_MK3:
108 case TUNER_PHILIPS_FM1236_MK3:
109 case TUNER_PHILIPS_FM1256_IH3:
110 stereo = ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
111 break;
112 default:
113 stereo = status & TUNER_STEREO;
114 }
115
116 return stereo;
117 }
118
119
120 /* ---------------------------------------------------------------------- */
121
122 static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
123 {
124 struct tuner *t = i2c_get_clientdata(c);
125 u8 config, cb, tuneraddr;
126 u16 div;
127 struct tunertype *tun;
128 u8 buffer[4];
129 int rc, IFPCoff, i, j;
130 enum param_type desired_type;
131
132 tun = &tuners[t->type];
133
134 /* IFPCoff = Video Intermediate Frequency - Vif:
135 940 =16*58.75 NTSC/J (Japan)
136 732 =16*45.75 M/N STD
137 704 =16*44 ATSC (at DVB code)
138 632 =16*39.50 I U.K.
139 622.4=16*38.90 B/G D/K I, L STD
140 592 =16*37.00 D China
141 590 =16.36.875 B Australia
142 543.2=16*33.95 L' STD
143 171.2=16*10.70 FM Radio (at set_radio_freq)
144 */
145
146 if (t->std == V4L2_STD_NTSC_M_JP) {
147 IFPCoff = 940;
148 desired_type = TUNER_PARAM_TYPE_NTSC;
149 } else if ((t->std & V4L2_STD_MN) &&
150 !(t->std & ~V4L2_STD_MN)) {
151 IFPCoff = 732;
152 desired_type = TUNER_PARAM_TYPE_NTSC;
153 } else if (t->std == V4L2_STD_SECAM_LC) {
154 IFPCoff = 543;
155 desired_type = TUNER_PARAM_TYPE_SECAM;
156 } else {
157 IFPCoff = 623;
158 desired_type = TUNER_PARAM_TYPE_PAL;
159 }
160
161 for (j = 0; j < tun->count-1; j++) {
162 if (desired_type != tun->params[j].type)
163 continue;
164 break;
165 }
166 /* use default tuner_params if desired_type not available */
167 if (desired_type != tun->params[j].type) {
168 tuner_dbg("IFPCoff = %d: tuner_params undefined for tuner %d\n",
169 IFPCoff,t->type);
170 j = 0;
171 }
172
173 for (i = 0; i < tun->params[j].count; i++) {
174 if (freq > tun->params[j].ranges[i].limit)
175 continue;
176 break;
177 }
178 if (i == tun->params[j].count) {
179 tuner_dbg("TV frequency out of range (%d > %d)",
180 freq, tun->params[j].ranges[i - 1].limit);
181 freq = tun->params[j].ranges[--i].limit;
182 }
183 config = tun->params[j].ranges[i].config;
184 cb = tun->params[j].ranges[i].cb;
185 /* i == 0 -> VHF_LO
186 * i == 1 -> VHF_HI
187 * i == 2 -> UHF */
188 tuner_dbg("tv: param %d, range %d\n",j,i);
189
190 div=freq + IFPCoff + offset;
191
192 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n",
193 freq / 16, freq % 16 * 100 / 16,
194 IFPCoff / 16, IFPCoff % 16 * 100 / 16,
195 offset / 16, offset % 16 * 100 / 16,
196 div);
197
198 /* tv norm specific stuff for multi-norm tuners */
199 switch (t->type) {
200 case TUNER_PHILIPS_SECAM: // FI1216MF
201 /* 0x01 -> ??? no change ??? */
202 /* 0x02 -> PAL BDGHI / SECAM L */
203 /* 0x04 -> ??? PAL others / SECAM others ??? */
204 cb &= ~0x02;
205 if (t->std & V4L2_STD_SECAM)
206 cb |= 0x02;
207 break;
208
209 case TUNER_TEMIC_4046FM5:
210 cb &= ~0x0f;
211
212 if (t->std & V4L2_STD_PAL_BG) {
213 cb |= TEMIC_SET_PAL_BG;
214
215 } else if (t->std & V4L2_STD_PAL_I) {
216 cb |= TEMIC_SET_PAL_I;
217
218 } else if (t->std & V4L2_STD_PAL_DK) {
219 cb |= TEMIC_SET_PAL_DK;
220
221 } else if (t->std & V4L2_STD_SECAM_L) {
222 cb |= TEMIC_SET_PAL_L;
223
224 }
225 break;
226
227 case TUNER_PHILIPS_FQ1216ME:
228 cb &= ~0x0f;
229
230 if (t->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
231 cb |= PHILIPS_SET_PAL_BGDK;
232
233 } else if (t->std & V4L2_STD_PAL_I) {
234 cb |= PHILIPS_SET_PAL_I;
235
236 } else if (t->std & V4L2_STD_SECAM_L) {
237 cb |= PHILIPS_SET_PAL_L;
238
239 }
240 break;
241
242 case TUNER_PHILIPS_ATSC:
243 /* 0x00 -> ATSC antenna input 1 */
244 /* 0x01 -> ATSC antenna input 2 */
245 /* 0x02 -> NTSC antenna input 1 */
246 /* 0x03 -> NTSC antenna input 2 */
247 cb &= ~0x03;
248 if (!(t->std & V4L2_STD_ATSC))
249 cb |= 2;
250 /* FIXME: input */
251 break;
252
253 case TUNER_MICROTUNE_4042FI5:
254 /* Set the charge pump for fast tuning */
255 config |= TUNER_CHARGE_PUMP;
256 break;
257
258 case TUNER_PHILIPS_TUV1236D:
259 /* 0x40 -> ATSC antenna input 1 */
260 /* 0x48 -> ATSC antenna input 2 */
261 /* 0x00 -> NTSC antenna input 1 */
262 /* 0x08 -> NTSC antenna input 2 */
263 buffer[0] = 0x14;
264 buffer[1] = 0x00;
265 buffer[2] = 0x17;
266 buffer[3] = 0x00;
267 cb &= ~0x40;
268 if (t->std & V4L2_STD_ATSC) {
269 cb |= 0x40;
270 buffer[1] = 0x04;
271 }
272 /* set to the correct mode (analog or digital) */
273 tuneraddr = c->addr;
274 c->addr = 0x0a;
275 if (2 != (rc = i2c_master_send(c,&buffer[0],2)))
276 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
277 if (2 != (rc = i2c_master_send(c,&buffer[2],2)))
278 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
279 c->addr = tuneraddr;
280 /* FIXME: input */
281 break;
282 }
283
284 if (tuners[t->type].params->cb_first_if_lower_freq && div < t->last_div) {
285 buffer[0] = config;
286 buffer[1] = cb;
287 buffer[2] = (div>>8) & 0x7f;
288 buffer[3] = div & 0xff;
289 } else {
290 buffer[0] = (div>>8) & 0x7f;
291 buffer[1] = div & 0xff;
292 buffer[2] = config;
293 buffer[3] = cb;
294 }
295 t->last_div = div;
296 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
297 buffer[0],buffer[1],buffer[2],buffer[3]);
298
299 if (4 != (rc = i2c_master_send(c,buffer,4)))
300 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
301
302 if (t->type == TUNER_MICROTUNE_4042FI5) {
303 // FIXME - this may also work for other tuners
304 unsigned long timeout = jiffies + msecs_to_jiffies(1);
305 u8 status_byte = 0;
306
307 /* Wait until the PLL locks */
308 for (;;) {
309 if (time_after(jiffies,timeout))
310 return;
311 if (1 != (rc = i2c_master_recv(c,&status_byte,1))) {
312 tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
313 break;
314 }
315 if (status_byte & TUNER_PLL_LOCKED)
316 break;
317 udelay(10);
318 }
319
320 /* Set the charge pump for optimized phase noise figure */
321 config &= ~TUNER_CHARGE_PUMP;
322 buffer[0] = (div>>8) & 0x7f;
323 buffer[1] = div & 0xff;
324 buffer[2] = config;
325 buffer[3] = cb;
326 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
327 buffer[0],buffer[1],buffer[2],buffer[3]);
328
329 if (4 != (rc = i2c_master_send(c,buffer,4)))
330 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
331 }
332 }
333
334 static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
335 {
336 struct tunertype *tun;
337 struct tuner *t = i2c_get_clientdata(c);
338 u8 buffer[4];
339 u16 div;
340 int rc, j;
341 enum param_type desired_type = TUNER_PARAM_TYPE_RADIO;
342
343 tun = &tuners[t->type];
344
345 for (j = 0; j < tun->count-1; j++) {
346 if (desired_type != tun->params[j].type)
347 continue;
348 break;
349 }
350 /* use default tuner_params if desired_type not available */
351 if (desired_type != tun->params[j].type)
352 j = 0;
353
354 div = (20 * freq / 16000) + (int)(20*10.7); /* IF 10.7 MHz */
355 buffer[2] = (tun->params[j].ranges[0].config & ~TUNER_RATIO_MASK) | TUNER_RATIO_SELECT_50; /* 50 kHz step */
356
357 switch (t->type) {
358 case TUNER_TENA_9533_DI:
359 case TUNER_YMEC_TVF_5533MF:
360 tuner_dbg ("This tuner doesn't have FM. Most cards has a TEA5767 for FM\n");
361 return;
362 case TUNER_PHILIPS_FM1216ME_MK3:
363 case TUNER_PHILIPS_FM1236_MK3:
364 case TUNER_PHILIPS_FMD1216ME_MK3:
365 buffer[3] = 0x19;
366 break;
367 case TUNER_TNF_5335MF:
368 buffer[3] = 0x11;
369 break;
370 case TUNER_PHILIPS_FM1256_IH3:
371 div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
372 buffer[3] = 0x19;
373 break;
374 case TUNER_LG_PAL_FM:
375 buffer[3] = 0xa5;
376 break;
377 case TUNER_MICROTUNE_4049FM5:
378 div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
379 buffer[3] = 0xa4;
380 break;
381 default:
382 buffer[3] = 0xa4;
383 break;
384 }
385 buffer[0] = (div>>8) & 0x7f;
386 buffer[1] = div & 0xff;
387 if (tuners[t->type].params->cb_first_if_lower_freq && div < t->last_div) {
388 buffer[0] = buffer[2];
389 buffer[1] = buffer[3];
390 buffer[2] = (div>>8) & 0x7f;
391 buffer[3] = div & 0xff;
392 } else {
393 buffer[0] = (div>>8) & 0x7f;
394 buffer[1] = div & 0xff;
395 }
396
397 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
398 buffer[0],buffer[1],buffer[2],buffer[3]);
399 t->last_div = div;
400
401 if (4 != (rc = i2c_master_send(c,buffer,4)))
402 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
403 }
404
405 int default_tuner_init(struct i2c_client *c)
406 {
407 struct tuner *t = i2c_get_clientdata(c);
408
409 tuner_info("type set to %d (%s)\n",
410 t->type, tuners[t->type].name);
411 strlcpy(c->name, tuners[t->type].name, sizeof(c->name));
412
413 t->set_tv_freq = default_set_tv_freq;
414 t->set_radio_freq = default_set_radio_freq;
415 t->has_signal = tuner_signal;
416 t->is_stereo = tuner_stereo;
417 t->standby = NULL;
418
419 return 0;
420 }
421
422 /*
423 * Overrides for Emacs so that we follow Linus's tabbing style.
424 * ---------------------------------------------------------------------------
425 * Local variables:
426 * c-basic-offset: 8
427 * End:
428 */
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