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V4L/DVB (4366): Remove of couple of useless lines
[linux-2.6/x86.git] / drivers / media / video / tuner-simple.c
blobe053b8485e1ca6e948ce1678e8308dc09b6b6b0c
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 #include <media/v4l2-common.h>
11
12 static int offset = 0;
13 module_param(offset, int, 0666);
14 MODULE_PARM_DESC(offset,"Allows to specify an offset for tuner");
15
16 /* ---------------------------------------------------------------------- */
17
18 /* tv standard selection for Temic 4046 FM5
19 this value takes the low bits of control byte 2
20 from datasheet Rev.01, Feb.00
21 standard BG I L L2 D
22 picture IF 38.9 38.9 38.9 33.95 38.9
23 sound 1 33.4 32.9 32.4 40.45 32.4
24 sound 2 33.16
25 NICAM 33.05 32.348 33.05 33.05
26 */
27 #define TEMIC_SET_PAL_I 0x05
28 #define TEMIC_SET_PAL_DK 0x09
29 #define TEMIC_SET_PAL_L 0x0a // SECAM ?
30 #define TEMIC_SET_PAL_L2 0x0b // change IF !
31 #define TEMIC_SET_PAL_BG 0x0c
32
33 /* tv tuner system standard selection for Philips FQ1216ME
34 this value takes the low bits of control byte 2
35 from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
36 standard BG DK I L L`
37 picture carrier 38.90 38.90 38.90 38.90 33.95
38 colour 34.47 34.47 34.47 34.47 38.38
39 sound 1 33.40 32.40 32.90 32.40 40.45
40 sound 2 33.16 - - - -
41 NICAM 33.05 33.05 32.35 33.05 39.80
42 */
43 #define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
44 #define PHILIPS_SET_PAL_BGDK 0x09
45 #define PHILIPS_SET_PAL_L2 0x0a
46 #define PHILIPS_SET_PAL_L 0x0b
47
48 /* system switching for Philips FI1216MF MK2
49 from datasheet "1996 Jul 09",
50 standard BG L L'
51 picture carrier 38.90 38.90 33.95
52 colour 34.47 34.37 38.38
53 sound 1 33.40 32.40 40.45
54 sound 2 33.16 - -
55 NICAM 33.05 33.05 39.80
56 */
57 #define PHILIPS_MF_SET_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
58 #define PHILIPS_MF_SET_PAL_L 0x03 // France
59 #define PHILIPS_MF_SET_PAL_L2 0x02 // L'
60
61 /* Control byte */
62
63 #define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */
64 #define TUNER_RATIO_SELECT_50 0x00
65 #define TUNER_RATIO_SELECT_32 0x02
66 #define TUNER_RATIO_SELECT_166 0x04
67 #define TUNER_RATIO_SELECT_62 0x06
68
69 #define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */
70
71 /* Status byte */
72
73 #define TUNER_POR 0x80
74 #define TUNER_FL 0x40
75 #define TUNER_MODE 0x38
76 #define TUNER_AFC 0x07
77 #define TUNER_SIGNAL 0x07
78 #define TUNER_STEREO 0x10
79
80 #define TUNER_PLL_LOCKED 0x40
81 #define TUNER_STEREO_MK3 0x04
82
83 /* ---------------------------------------------------------------------- */
84
85 static int tuner_getstatus(struct i2c_client *c)
86 {
87 unsigned char byte;
88
89 if (1 != i2c_master_recv(c,&byte,1))
90 return 0;
91
92 return byte;
93 }
94
95 static int tuner_signal(struct i2c_client *c)
96 {
97 return (tuner_getstatus(c) & TUNER_SIGNAL) << 13;
98 }
99
100 static int tuner_stereo(struct i2c_client *c)
101 {
102 int stereo, status;
103 struct tuner *t = i2c_get_clientdata(c);
104
105 status = tuner_getstatus (c);
106
107 switch (t->type) {
108 case TUNER_PHILIPS_FM1216ME_MK3:
109 case TUNER_PHILIPS_FM1236_MK3:
110 case TUNER_PHILIPS_FM1256_IH3:
111 stereo = ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
112 break;
113 default:
114 stereo = status & TUNER_STEREO;
115 }
116
117 return stereo;
118 }
119
120
121 /* ---------------------------------------------------------------------- */
122
123 static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
124 {
125 struct tuner *t = i2c_get_clientdata(c);
126 u8 config, cb, tuneraddr;
127 u16 div;
128 struct tunertype *tun;
129 u8 buffer[4];
130 int rc, IFPCoff, i, j;
131 enum param_type desired_type;
132 struct tuner_params *params;
133
134 tun = &tuners[t->type];
135
136 /* IFPCoff = Video Intermediate Frequency - Vif:
137 940 =16*58.75 NTSC/J (Japan)
138 732 =16*45.75 M/N STD
139 704 =16*44 ATSC (at DVB code)
140 632 =16*39.50 I U.K.
141 622.4=16*38.90 B/G D/K I, L STD
142 592 =16*37.00 D China
143 590 =16.36.875 B Australia
144 543.2=16*33.95 L' STD
145 171.2=16*10.70 FM Radio (at set_radio_freq)
146 */
147
148 if (t->std == V4L2_STD_NTSC_M_JP) {
149 IFPCoff = 940;
150 desired_type = TUNER_PARAM_TYPE_NTSC;
151 } else if ((t->std & V4L2_STD_MN) &&
152 !(t->std & ~V4L2_STD_MN)) {
153 IFPCoff = 732;
154 desired_type = TUNER_PARAM_TYPE_NTSC;
155 } else if (t->std == V4L2_STD_SECAM_LC) {
156 IFPCoff = 543;
157 desired_type = TUNER_PARAM_TYPE_SECAM;
158 } else {
159 IFPCoff = 623;
160 desired_type = TUNER_PARAM_TYPE_PAL;
161 }
162
163 for (j = 0; j < tun->count-1; j++) {
164 if (desired_type != tun->params[j].type)
165 continue;
166 break;
167 }
168 /* use default tuner_params if desired_type not available */
169 if (desired_type != tun->params[j].type) {
170 tuner_dbg("IFPCoff = %d: tuner_params undefined for tuner %d\n",
171 IFPCoff,t->type);
172 j = 0;
173 }
174 params = &tun->params[j];
175
176 for (i = 0; i < params->count; i++) {
177 if (freq > params->ranges[i].limit)
178 continue;
179 break;
180 }
181 if (i == params->count) {
182 tuner_dbg("TV frequency out of range (%d > %d)",
183 freq, params->ranges[i - 1].limit);
184 freq = params->ranges[--i].limit;
185 }
186 config = params->ranges[i].config;
187 cb = params->ranges[i].cb;
188 /* i == 0 -> VHF_LO
189 * i == 1 -> VHF_HI
190 * i == 2 -> UHF */
191 tuner_dbg("tv: param %d, range %d\n",j,i);
192
193 div=freq + IFPCoff + offset;
194
195 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n",
196 freq / 16, freq % 16 * 100 / 16,
197 IFPCoff / 16, IFPCoff % 16 * 100 / 16,
198 offset / 16, offset % 16 * 100 / 16,
199 div);
200
201 /* tv norm specific stuff for multi-norm tuners */
202 switch (t->type) {
203 case TUNER_PHILIPS_SECAM: // FI1216MF
204 /* 0x01 -> ??? no change ??? */
205 /* 0x02 -> PAL BDGHI / SECAM L */
206 /* 0x04 -> ??? PAL others / SECAM others ??? */
207 cb &= ~0x02;
208 if (t->std & V4L2_STD_SECAM)
209 cb |= 0x02;
210 break;
211
212 case TUNER_TEMIC_4046FM5:
213 cb &= ~0x0f;
214
215 if (t->std & V4L2_STD_PAL_BG) {
216 cb |= TEMIC_SET_PAL_BG;
217
218 } else if (t->std & V4L2_STD_PAL_I) {
219 cb |= TEMIC_SET_PAL_I;
220
221 } else if (t->std & V4L2_STD_PAL_DK) {
222 cb |= TEMIC_SET_PAL_DK;
223
224 } else if (t->std & V4L2_STD_SECAM_L) {
225 cb |= TEMIC_SET_PAL_L;
226
227 }
228 break;
229
230 case TUNER_PHILIPS_FQ1216ME:
231 cb &= ~0x0f;
232
233 if (t->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
234 cb |= PHILIPS_SET_PAL_BGDK;
235
236 } else if (t->std & V4L2_STD_PAL_I) {
237 cb |= PHILIPS_SET_PAL_I;
238
239 } else if (t->std & V4L2_STD_SECAM_L) {
240 cb |= PHILIPS_SET_PAL_L;
241
242 }
243 break;
244
245 case TUNER_PHILIPS_ATSC:
246 /* 0x00 -> ATSC antenna input 1 */
247 /* 0x01 -> ATSC antenna input 2 */
248 /* 0x02 -> NTSC antenna input 1 */
249 /* 0x03 -> NTSC antenna input 2 */
250 cb &= ~0x03;
251 if (!(t->std & V4L2_STD_ATSC))
252 cb |= 2;
253 /* FIXME: input */
254 break;
255
256 case TUNER_MICROTUNE_4042FI5:
257 /* Set the charge pump for fast tuning */
258 config |= TUNER_CHARGE_PUMP;
259 break;
260
261 case TUNER_PHILIPS_TUV1236D:
262 /* 0x40 -> ATSC antenna input 1 */
263 /* 0x48 -> ATSC antenna input 2 */
264 /* 0x00 -> NTSC antenna input 1 */
265 /* 0x08 -> NTSC antenna input 2 */
266 buffer[0] = 0x14;
267 buffer[1] = 0x00;
268 buffer[2] = 0x17;
269 buffer[3] = 0x00;
270 cb &= ~0x40;
271 if (t->std & V4L2_STD_ATSC) {
272 cb |= 0x40;
273 buffer[1] = 0x04;
274 }
275 /* set to the correct mode (analog or digital) */
276 tuneraddr = c->addr;
277 c->addr = 0x0a;
278 if (2 != (rc = i2c_master_send(c,&buffer[0],2)))
279 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
280 if (2 != (rc = i2c_master_send(c,&buffer[2],2)))
281 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
282 c->addr = tuneraddr;
283 /* FIXME: input */
284 break;
285 }
286
287 if (params->cb_first_if_lower_freq && div < t->last_div) {
288 buffer[0] = config;
289 buffer[1] = cb;
290 buffer[2] = (div>>8) & 0x7f;
291 buffer[3] = div & 0xff;
292 } else {
293 buffer[0] = (div>>8) & 0x7f;
294 buffer[1] = div & 0xff;
295 buffer[2] = config;
296 buffer[3] = cb;
297 }
298 t->last_div = div;
299 if (params->has_tda9887) {
300 int config = 0;
301 int is_secam_l = (t->std & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)) &&
302 !(t->std & ~(V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC));
303
304 if (t->std == V4L2_STD_SECAM_LC) {
305 if (params->port1_active ^ params->port1_invert_for_secam_lc)
306 config |= TDA9887_PORT1_ACTIVE;
307 if (params->port2_active ^ params->port2_invert_for_secam_lc)
308 config |= TDA9887_PORT2_ACTIVE;
309 }
310 else {
311 if (params->port1_active)
312 config |= TDA9887_PORT1_ACTIVE;
313 if (params->port2_active)
314 config |= TDA9887_PORT2_ACTIVE;
315 }
316 if (params->intercarrier_mode)
317 config |= TDA9887_INTERCARRIER;
318 if (is_secam_l) {
319 if (i == 0 && params->default_top_secam_low)
320 config |= TDA9887_TOP(params->default_top_secam_low);
321 else if (i == 1 && params->default_top_secam_mid)
322 config |= TDA9887_TOP(params->default_top_secam_mid);
323 else if (params->default_top_secam_high)
324 config |= TDA9887_TOP(params->default_top_secam_high);
325 }
326 else {
327 if (i == 0 && params->default_top_low)
328 config |= TDA9887_TOP(params->default_top_low);
329 else if (i == 1 && params->default_top_mid)
330 config |= TDA9887_TOP(params->default_top_mid);
331 else if (params->default_top_high)
332 config |= TDA9887_TOP(params->default_top_high);
333 }
334 i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
335 }
336 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
337 buffer[0],buffer[1],buffer[2],buffer[3]);
338
339 if (4 != (rc = i2c_master_send(c,buffer,4)))
340 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
341
342 switch (t->type) {
343 case TUNER_LG_TDVS_H06XF:
344 /* Set the Auxiliary Byte. */
345 buffer[0] = buffer[2];
346 buffer[0] &= ~0x20;
347 buffer[0] |= 0x18;
348 buffer[1] = 0x20;
349 tuner_dbg("tv 0x%02x 0x%02x\n",buffer[0],buffer[1]);
350
351 if (2 != (rc = i2c_master_send(c,buffer,2)))
352 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
353 break;
354 case TUNER_MICROTUNE_4042FI5:
355 {
356 // FIXME - this may also work for other tuners
357 unsigned long timeout = jiffies + msecs_to_jiffies(1);
358 u8 status_byte = 0;
359
360 /* Wait until the PLL locks */
361 for (;;) {
362 if (time_after(jiffies,timeout))
363 return;
364 if (1 != (rc = i2c_master_recv(c,&status_byte,1))) {
365 tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
366 break;
367 }
368 if (status_byte & TUNER_PLL_LOCKED)
369 break;
370 udelay(10);
371 }
372
373 /* Set the charge pump for optimized phase noise figure */
374 config &= ~TUNER_CHARGE_PUMP;
375 buffer[0] = (div>>8) & 0x7f;
376 buffer[1] = div & 0xff;
377 buffer[2] = config;
378 buffer[3] = cb;
379 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
380 buffer[0],buffer[1],buffer[2],buffer[3]);
381
382 if (4 != (rc = i2c_master_send(c,buffer,4)))
383 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
384 break;
385 }
386 }
387 }
388
389 static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
390 {
391 struct tunertype *tun;
392 struct tuner *t = i2c_get_clientdata(c);
393 u8 buffer[4];
394 u16 div;
395 int rc, j;
396 enum param_type desired_type = TUNER_PARAM_TYPE_RADIO;
397 struct tuner_params *params;
398
399 tun = &tuners[t->type];
400
401 for (j = 0; j < tun->count-1; j++) {
402 if (desired_type != tun->params[j].type)
403 continue;
404 break;
405 }
406 /* use default tuner_params if desired_type not available */
407 if (desired_type != tun->params[j].type)
408 j = 0;
409
410 div = (20 * freq / 16000) + (int)(20*10.7); /* IF 10.7 MHz */
411 params = &tun->params[j];
412 buffer[2] = (params->ranges[0].config & ~TUNER_RATIO_MASK) | TUNER_RATIO_SELECT_50; /* 50 kHz step */
413
414 switch (t->type) {
415 case TUNER_TENA_9533_DI:
416 case TUNER_YMEC_TVF_5533MF:
417 tuner_dbg ("This tuner doesn't have FM. Most cards has a TEA5767 for FM\n");
418 return;
419 case TUNER_PHILIPS_FM1216ME_MK3:
420 case TUNER_PHILIPS_FM1236_MK3:
421 case TUNER_PHILIPS_FMD1216ME_MK3:
422 buffer[3] = 0x19;
423 break;
424 case TUNER_TNF_5335MF:
425 buffer[3] = 0x11;
426 break;
427 case TUNER_PHILIPS_FM1256_IH3:
428 div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
429 buffer[3] = 0x19;
430 break;
431 case TUNER_LG_PAL_FM:
432 buffer[3] = 0xa5;
433 break;
434 case TUNER_MICROTUNE_4049FM5:
435 div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
436 buffer[3] = 0xa4;
437 break;
438 default:
439 buffer[3] = 0xa4;
440 break;
441 }
442 if (params->cb_first_if_lower_freq && div < t->last_div) {
443 buffer[0] = buffer[2];
444 buffer[1] = buffer[3];
445 buffer[2] = (div>>8) & 0x7f;
446 buffer[3] = div & 0xff;
447 } else {
448 buffer[0] = (div>>8) & 0x7f;
449 buffer[1] = div & 0xff;
450 }
451
452 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
453 buffer[0],buffer[1],buffer[2],buffer[3]);
454 t->last_div = div;
455
456 if (params->has_tda9887) {
457 int config = 0;
458 if (params->port1_active && !params->port1_fm_high_sensitivity)
459 config |= TDA9887_PORT1_ACTIVE;
460 if (params->port2_active && !params->port2_fm_high_sensitivity)
461 config |= TDA9887_PORT2_ACTIVE;
462 if (params->intercarrier_mode)
463 config |= TDA9887_INTERCARRIER;
464 /* if (params->port1_set_for_fm_mono)
465 config &= ~TDA9887_PORT1_ACTIVE;*/
466 i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
467 }
468 if (4 != (rc = i2c_master_send(c,buffer,4)))
469 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
470 }
471
472 int default_tuner_init(struct i2c_client *c)
473 {
474 struct tuner *t = i2c_get_clientdata(c);
475
476 tuner_info("type set to %d (%s)\n",
477 t->type, tuners[t->type].name);
478 strlcpy(c->name, tuners[t->type].name, sizeof(c->name));
479
480 t->set_tv_freq = default_set_tv_freq;
481 t->set_radio_freq = default_set_radio_freq;
482 t->has_signal = tuner_signal;
483 t->is_stereo = tuner_stereo;
484 t->standby = NULL;
485
486 return 0;
487 }
488
489 /*
490 * Overrides for Emacs so that we follow Linus's tabbing style.
491 * ---------------------------------------------------------------------------
492 * Local variables:
493 * c-basic-offset: 8
494 * End:
495 */
x86 "subsystem" repository