RT-AC66 3.0.0.4.374.130 core
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / drivers / media / video / tda9887.c
blobfde576f1101cb3f980c9cb616aa3ae7ee1be48c3
1 #include <linux/module.h>
2 #include <linux/moduleparam.h>
3 #include <linux/kernel.h>
4 #include <linux/i2c.h>
5 #include <linux/types.h>
6 #include <linux/videodev.h>
7 #include <linux/init.h>
8 #include <linux/errno.h>
9 #include <linux/slab.h>
10 #include <linux/delay.h>
12 #include <media/v4l2-common.h>
13 #include <media/tuner.h>
16 /* Chips:
17 TDA9885 (PAL, NTSC)
18 TDA9886 (PAL, SECAM, NTSC)
19 TDA9887 (PAL, SECAM, NTSC, FM Radio)
21 Used as part of several tuners
24 #define tda9887_info(fmt, arg...) do {\
25 printk(KERN_INFO "%s %d-%04x: " fmt, t->i2c.name, \
26 i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
27 #define tda9887_dbg(fmt, arg...) do {\
28 if (tuner_debug) \
29 printk(KERN_INFO "%s %d-%04x: " fmt, t->i2c.name, \
30 i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
33 /* ---------------------------------------------------------------------- */
35 #define UNSET (-1U)
37 struct tvnorm {
38 v4l2_std_id std;
39 char *name;
40 unsigned char b;
41 unsigned char c;
42 unsigned char e;
45 /* ---------------------------------------------------------------------- */
48 // TDA defines
51 //// first reg (b)
52 #define cVideoTrapBypassOFF 0x00 // bit b0
53 #define cVideoTrapBypassON 0x01 // bit b0
55 #define cAutoMuteFmInactive 0x00 // bit b1
56 #define cAutoMuteFmActive 0x02 // bit b1
58 #define cIntercarrier 0x00 // bit b2
59 #define cQSS 0x04 // bit b2
61 #define cPositiveAmTV 0x00 // bit b3:4
62 #define cFmRadio 0x08 // bit b3:4
63 #define cNegativeFmTV 0x10 // bit b3:4
66 #define cForcedMuteAudioON 0x20 // bit b5
67 #define cForcedMuteAudioOFF 0x00 // bit b5
69 #define cOutputPort1Active 0x00 // bit b6
70 #define cOutputPort1Inactive 0x40 // bit b6
72 #define cOutputPort2Active 0x00 // bit b7
73 #define cOutputPort2Inactive 0x80 // bit b7
76 //// second reg (c)
77 #define cDeemphasisOFF 0x00 // bit c5
78 #define cDeemphasisON 0x20 // bit c5
80 #define cDeemphasis75 0x00 // bit c6
81 #define cDeemphasis50 0x40 // bit c6
83 #define cAudioGain0 0x00 // bit c7
84 #define cAudioGain6 0x80 // bit c7
86 #define cTopMask 0x1f // bit c0:4
87 #define cTopDefault 0x10 // bit c0:4
89 //// third reg (e)
90 #define cAudioIF_4_5 0x00 // bit e0:1
91 #define cAudioIF_5_5 0x01 // bit e0:1
92 #define cAudioIF_6_0 0x02 // bit e0:1
93 #define cAudioIF_6_5 0x03 // bit e0:1
96 #define cVideoIF_58_75 0x00 // bit e2:4
97 #define cVideoIF_45_75 0x04 // bit e2:4
98 #define cVideoIF_38_90 0x08 // bit e2:4
99 #define cVideoIF_38_00 0x0C // bit e2:4
100 #define cVideoIF_33_90 0x10 // bit e2:4
101 #define cVideoIF_33_40 0x14 // bit e2:4
102 #define cRadioIF_45_75 0x18 // bit e2:4
103 #define cRadioIF_38_90 0x1C // bit e2:4
106 #define cTunerGainNormal 0x00 // bit e5
107 #define cTunerGainLow 0x20 // bit e5
109 #define cGating_18 0x00 // bit e6
110 #define cGating_36 0x40 // bit e6
112 #define cAgcOutON 0x80 // bit e7
113 #define cAgcOutOFF 0x00 // bit e7
115 /* ---------------------------------------------------------------------- */
117 static struct tvnorm tvnorms[] = {
119 .std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H | V4L2_STD_PAL_N,
120 .name = "PAL-BGHN",
121 .b = ( cNegativeFmTV |
122 cQSS ),
123 .c = ( cDeemphasisON |
124 cDeemphasis50 |
125 cTopDefault),
126 .e = ( cGating_36 |
127 cAudioIF_5_5 |
128 cVideoIF_38_90 ),
130 .std = V4L2_STD_PAL_I,
131 .name = "PAL-I",
132 .b = ( cNegativeFmTV |
133 cQSS ),
134 .c = ( cDeemphasisON |
135 cDeemphasis50 |
136 cTopDefault),
137 .e = ( cGating_36 |
138 cAudioIF_6_0 |
139 cVideoIF_38_90 ),
141 .std = V4L2_STD_PAL_DK,
142 .name = "PAL-DK",
143 .b = ( cNegativeFmTV |
144 cQSS ),
145 .c = ( cDeemphasisON |
146 cDeemphasis50 |
147 cTopDefault),
148 .e = ( cGating_36 |
149 cAudioIF_6_5 |
150 cVideoIF_38_90 ),
152 .std = V4L2_STD_PAL_M | V4L2_STD_PAL_Nc,
153 .name = "PAL-M/Nc",
154 .b = ( cNegativeFmTV |
155 cQSS ),
156 .c = ( cDeemphasisON |
157 cDeemphasis75 |
158 cTopDefault),
159 .e = ( cGating_36 |
160 cAudioIF_4_5 |
161 cVideoIF_45_75 ),
163 .std = V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
164 .name = "SECAM-BGH",
165 .b = ( cPositiveAmTV |
166 cQSS ),
167 .c = ( cTopDefault),
168 .e = ( cGating_36 |
169 cAudioIF_5_5 |
170 cVideoIF_38_90 ),
172 .std = V4L2_STD_SECAM_L,
173 .name = "SECAM-L",
174 .b = ( cPositiveAmTV |
175 cQSS ),
176 .c = ( cTopDefault),
177 .e = ( cGating_36 |
178 cAudioIF_6_5 |
179 cVideoIF_38_90 ),
181 .std = V4L2_STD_SECAM_LC,
182 .name = "SECAM-L'",
183 .b = ( cOutputPort2Inactive |
184 cPositiveAmTV |
185 cQSS ),
186 .c = ( cTopDefault),
187 .e = ( cGating_36 |
188 cAudioIF_6_5 |
189 cVideoIF_33_90 ),
191 .std = V4L2_STD_SECAM_DK,
192 .name = "SECAM-DK",
193 .b = ( cNegativeFmTV |
194 cQSS ),
195 .c = ( cDeemphasisON |
196 cDeemphasis50 |
197 cTopDefault),
198 .e = ( cGating_36 |
199 cAudioIF_6_5 |
200 cVideoIF_38_90 ),
202 .std = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
203 .name = "NTSC-M",
204 .b = ( cNegativeFmTV |
205 cQSS ),
206 .c = ( cDeemphasisON |
207 cDeemphasis75 |
208 cTopDefault),
209 .e = ( cGating_36 |
210 cAudioIF_4_5 |
211 cVideoIF_45_75 ),
213 .std = V4L2_STD_NTSC_M_JP,
214 .name = "NTSC-M-JP",
215 .b = ( cNegativeFmTV |
216 cQSS ),
217 .c = ( cDeemphasisON |
218 cDeemphasis50 |
219 cTopDefault),
220 .e = ( cGating_36 |
221 cAudioIF_4_5 |
222 cVideoIF_58_75 ),
226 static struct tvnorm radio_stereo = {
227 .name = "Radio Stereo",
228 .b = ( cFmRadio |
229 cQSS ),
230 .c = ( cDeemphasisOFF |
231 cAudioGain6 |
232 cTopDefault),
233 .e = ( cTunerGainLow |
234 cAudioIF_5_5 |
235 cRadioIF_38_90 ),
238 static struct tvnorm radio_mono = {
239 .name = "Radio Mono",
240 .b = ( cFmRadio |
241 cQSS ),
242 .c = ( cDeemphasisON |
243 cDeemphasis75 |
244 cTopDefault),
245 .e = ( cTunerGainLow |
246 cAudioIF_5_5 |
247 cRadioIF_38_90 ),
250 /* ---------------------------------------------------------------------- */
252 static void dump_read_message(struct tuner *t, unsigned char *buf)
254 static char *afc[16] = {
255 "- 12.5 kHz",
256 "- 37.5 kHz",
257 "- 62.5 kHz",
258 "- 87.5 kHz",
259 "-112.5 kHz",
260 "-137.5 kHz",
261 "-162.5 kHz",
262 "-187.5 kHz [min]",
263 "+187.5 kHz [max]",
264 "+162.5 kHz",
265 "+137.5 kHz",
266 "+112.5 kHz",
267 "+ 87.5 kHz",
268 "+ 62.5 kHz",
269 "+ 37.5 kHz",
270 "+ 12.5 kHz",
272 tda9887_info("read: 0x%2x\n", buf[0]);
273 tda9887_info(" after power on : %s\n", (buf[0] & 0x01) ? "yes" : "no");
274 tda9887_info(" afc : %s\n", afc[(buf[0] >> 1) & 0x0f]);
275 tda9887_info(" fmif level : %s\n", (buf[0] & 0x20) ? "high" : "low");
276 tda9887_info(" afc window : %s\n", (buf[0] & 0x40) ? "in" : "out");
277 tda9887_info(" vfi level : %s\n", (buf[0] & 0x80) ? "high" : "low");
280 static void dump_write_message(struct tuner *t, unsigned char *buf)
282 static char *sound[4] = {
283 "AM/TV",
284 "FM/radio",
285 "FM/TV",
286 "FM/radio"
288 static char *adjust[32] = {
289 "-16", "-15", "-14", "-13", "-12", "-11", "-10", "-9",
290 "-8", "-7", "-6", "-5", "-4", "-3", "-2", "-1",
291 "0", "+1", "+2", "+3", "+4", "+5", "+6", "+7",
292 "+8", "+9", "+10", "+11", "+12", "+13", "+14", "+15"
294 static char *deemph[4] = {
295 "no", "no", "75", "50"
297 static char *carrier[4] = {
298 "4.5 MHz",
299 "5.5 MHz",
300 "6.0 MHz",
301 "6.5 MHz / AM"
303 static char *vif[8] = {
304 "58.75 MHz",
305 "45.75 MHz",
306 "38.9 MHz",
307 "38.0 MHz",
308 "33.9 MHz",
309 "33.4 MHz",
310 "45.75 MHz + pin13",
311 "38.9 MHz + pin13",
313 static char *rif[4] = {
314 "44 MHz",
315 "52 MHz",
316 "52 MHz",
317 "44 MHz",
320 tda9887_info("write: byte B 0x%02x\n",buf[1]);
321 tda9887_info(" B0 video mode : %s\n",
322 (buf[1] & 0x01) ? "video trap" : "sound trap");
323 tda9887_info(" B1 auto mute fm : %s\n",
324 (buf[1] & 0x02) ? "yes" : "no");
325 tda9887_info(" B2 carrier mode : %s\n",
326 (buf[1] & 0x04) ? "QSS" : "Intercarrier");
327 tda9887_info(" B3-4 tv sound/radio : %s\n",
328 sound[(buf[1] & 0x18) >> 3]);
329 tda9887_info(" B5 force mute audio: %s\n",
330 (buf[1] & 0x20) ? "yes" : "no");
331 tda9887_info(" B6 output port 1 : %s\n",
332 (buf[1] & 0x40) ? "high (inactive)" : "low (active)");
333 tda9887_info(" B7 output port 2 : %s\n",
334 (buf[1] & 0x80) ? "high (inactive)" : "low (active)");
336 tda9887_info("write: byte C 0x%02x\n",buf[2]);
337 tda9887_info(" C0-4 top adjustment : %s dB\n", adjust[buf[2] & 0x1f]);
338 tda9887_info(" C5-6 de-emphasis : %s\n", deemph[(buf[2] & 0x60) >> 5]);
339 tda9887_info(" C7 audio gain : %s\n",
340 (buf[2] & 0x80) ? "-6" : "0");
342 tda9887_info("write: byte E 0x%02x\n",buf[3]);
343 tda9887_info(" E0-1 sound carrier : %s\n",
344 carrier[(buf[3] & 0x03)]);
345 tda9887_info(" E6 l pll gating : %s\n",
346 (buf[3] & 0x40) ? "36" : "13");
348 if (buf[1] & 0x08) {
349 /* radio */
350 tda9887_info(" E2-4 video if : %s\n",
351 rif[(buf[3] & 0x0c) >> 2]);
352 tda9887_info(" E7 vif agc output : %s\n",
353 (buf[3] & 0x80)
354 ? ((buf[3] & 0x10) ? "fm-agc radio" : "sif-agc radio")
355 : "fm radio carrier afc");
356 } else {
357 /* video */
358 tda9887_info(" E2-4 video if : %s\n",
359 vif[(buf[3] & 0x1c) >> 2]);
360 tda9887_info(" E5 tuner gain : %s\n",
361 (buf[3] & 0x80)
362 ? ((buf[3] & 0x20) ? "external" : "normal")
363 : ((buf[3] & 0x20) ? "minimum" : "normal"));
364 tda9887_info(" E7 vif agc output : %s\n",
365 (buf[3] & 0x80)
366 ? ((buf[3] & 0x20)
367 ? "pin3 port, pin22 vif agc out"
368 : "pin22 port, pin3 vif acg ext in")
369 : "pin3+pin22 port");
371 tda9887_info("--\n");
374 /* ---------------------------------------------------------------------- */
376 static int tda9887_set_tvnorm(struct tuner *t, char *buf)
378 struct tvnorm *norm = NULL;
379 int i;
381 if (t->mode == V4L2_TUNER_RADIO) {
382 if (t->audmode == V4L2_TUNER_MODE_MONO)
383 norm = &radio_mono;
384 else
385 norm = &radio_stereo;
386 } else {
387 for (i = 0; i < ARRAY_SIZE(tvnorms); i++) {
388 if (tvnorms[i].std & t->std) {
389 norm = tvnorms+i;
390 break;
394 if (NULL == norm) {
395 tda9887_dbg("Unsupported tvnorm entry - audio muted\n");
396 return -1;
399 tda9887_dbg("configure for: %s\n",norm->name);
400 buf[1] = norm->b;
401 buf[2] = norm->c;
402 buf[3] = norm->e;
403 return 0;
406 static unsigned int port1 = UNSET;
407 static unsigned int port2 = UNSET;
408 static unsigned int qss = UNSET;
409 static unsigned int adjust = UNSET;
411 module_param(port1, int, 0644);
412 module_param(port2, int, 0644);
413 module_param(qss, int, 0644);
414 module_param(adjust, int, 0644);
416 static int tda9887_set_insmod(struct tuner *t, char *buf)
418 if (UNSET != port1) {
419 if (port1)
420 buf[1] |= cOutputPort1Inactive;
421 else
422 buf[1] &= ~cOutputPort1Inactive;
424 if (UNSET != port2) {
425 if (port2)
426 buf[1] |= cOutputPort2Inactive;
427 else
428 buf[1] &= ~cOutputPort2Inactive;
431 if (UNSET != qss) {
432 if (qss)
433 buf[1] |= cQSS;
434 else
435 buf[1] &= ~cQSS;
438 if (adjust >= 0x00 && adjust < 0x20) {
439 buf[2] &= ~cTopMask;
440 buf[2] |= adjust;
442 return 0;
445 static int tda9887_set_config(struct tuner *t, char *buf)
447 if (t->tda9887_config & TDA9887_PORT1_ACTIVE)
448 buf[1] &= ~cOutputPort1Inactive;
449 if (t->tda9887_config & TDA9887_PORT1_INACTIVE)
450 buf[1] |= cOutputPort1Inactive;
451 if (t->tda9887_config & TDA9887_PORT2_ACTIVE)
452 buf[1] &= ~cOutputPort2Inactive;
453 if (t->tda9887_config & TDA9887_PORT2_INACTIVE)
454 buf[1] |= cOutputPort2Inactive;
456 if (t->tda9887_config & TDA9887_QSS)
457 buf[1] |= cQSS;
458 if (t->tda9887_config & TDA9887_INTERCARRIER)
459 buf[1] &= ~cQSS;
461 if (t->tda9887_config & TDA9887_AUTOMUTE)
462 buf[1] |= cAutoMuteFmActive;
463 if (t->tda9887_config & TDA9887_DEEMPHASIS_MASK) {
464 buf[2] &= ~0x60;
465 switch (t->tda9887_config & TDA9887_DEEMPHASIS_MASK) {
466 case TDA9887_DEEMPHASIS_NONE:
467 buf[2] |= cDeemphasisOFF;
468 break;
469 case TDA9887_DEEMPHASIS_50:
470 buf[2] |= cDeemphasisON | cDeemphasis50;
471 break;
472 case TDA9887_DEEMPHASIS_75:
473 buf[2] |= cDeemphasisON | cDeemphasis75;
474 break;
477 if (t->tda9887_config & TDA9887_TOP_SET) {
478 buf[2] &= ~cTopMask;
479 buf[2] |= (t->tda9887_config >> 8) & cTopMask;
481 if ((t->tda9887_config & TDA9887_INTERCARRIER_NTSC) && (t->std & V4L2_STD_NTSC))
482 buf[1] &= ~cQSS;
483 if (t->tda9887_config & TDA9887_GATING_18)
484 buf[3] &= ~cGating_36;
486 if (t->tda9887_config & TDA9887_GAIN_NORMAL) {
487 radio_stereo.e &= ~cTunerGainLow;
488 radio_mono.e &= ~cTunerGainLow;
491 return 0;
494 /* ---------------------------------------------------------------------- */
496 static int tda9887_status(struct tuner *t)
498 unsigned char buf[1];
499 int rc;
501 memset(buf,0,sizeof(buf));
502 if (1 != (rc = i2c_master_recv(&t->i2c,buf,1)))
503 tda9887_info("i2c i/o error: rc == %d (should be 1)\n",rc);
504 dump_read_message(t, buf);
505 return 0;
508 static void tda9887_configure(struct i2c_client *client)
510 struct tuner *t = i2c_get_clientdata(client);
511 int rc;
513 memset(t->tda9887_data,0,sizeof(t->tda9887_data));
514 tda9887_set_tvnorm(t,t->tda9887_data);
516 /* A note on the port settings:
517 These settings tend to depend on the specifics of the board.
518 By default they are set to inactive (bit value 1) by this driver,
519 overwriting any changes made by the tvnorm. This means that it
520 is the responsibility of the module using the tda9887 to set
521 these values in case of changes in the tvnorm.
522 In many cases port 2 should be made active (0) when selecting
523 SECAM-L, and port 2 should remain inactive (1) for SECAM-L'.
525 For the other standards the tda9887 application note says that
526 the ports should be set to active (0), but, again, that may
527 differ depending on the precise hardware configuration.
529 t->tda9887_data[1] |= cOutputPort1Inactive;
530 t->tda9887_data[1] |= cOutputPort2Inactive;
532 tda9887_set_config(t,t->tda9887_data);
533 tda9887_set_insmod(t,t->tda9887_data);
535 if (t->mode == T_STANDBY) {
536 t->tda9887_data[1] |= cForcedMuteAudioON;
539 tda9887_dbg("writing: b=0x%02x c=0x%02x e=0x%02x\n",
540 t->tda9887_data[1],t->tda9887_data[2],t->tda9887_data[3]);
541 if (tuner_debug > 1)
542 dump_write_message(t, t->tda9887_data);
544 if (4 != (rc = i2c_master_send(&t->i2c,t->tda9887_data,4)))
545 tda9887_info("i2c i/o error: rc == %d (should be 4)\n",rc);
547 if (tuner_debug > 2) {
548 msleep_interruptible(1000);
549 tda9887_status(t);
553 /* ---------------------------------------------------------------------- */
555 static void tda9887_tuner_status(struct i2c_client *client)
557 struct tuner *t = i2c_get_clientdata(client);
558 tda9887_info("Data bytes: b=0x%02x c=0x%02x e=0x%02x\n", t->tda9887_data[1], t->tda9887_data[2], t->tda9887_data[3]);
561 static int tda9887_get_afc(struct i2c_client *client)
563 struct tuner *t = i2c_get_clientdata(client);
564 static int AFC_BITS_2_kHz[] = {
565 -12500, -37500, -62500, -97500,
566 -112500, -137500, -162500, -187500,
567 187500, 162500, 137500, 112500,
568 97500 , 62500, 37500 , 12500
570 int afc=0;
571 __u8 reg = 0;
573 if (1 == i2c_master_recv(&t->i2c,&reg,1))
574 afc = AFC_BITS_2_kHz[(reg>>1)&0x0f];
576 return afc;
579 static void tda9887_standby(struct i2c_client *client)
581 tda9887_configure(client);
584 static void tda9887_set_freq(struct i2c_client *client, unsigned int freq)
586 tda9887_configure(client);
589 int tda9887_tuner_init(struct i2c_client *c)
591 struct tuner *t = i2c_get_clientdata(c);
593 strlcpy(c->name, "tda9887", sizeof(c->name));
595 tda9887_info("tda988[5/6/7] found @ 0x%x (%s)\n", t->i2c.addr,
596 t->i2c.driver->driver.name);
598 t->set_tv_freq = tda9887_set_freq;
599 t->set_radio_freq = tda9887_set_freq;
600 t->standby = tda9887_standby;
601 t->tuner_status = tda9887_tuner_status;
602 t->get_afc = tda9887_get_afc;
604 return 0;
608 * Overrides for Emacs so that we follow Linus's tabbing style.
609 * ---------------------------------------------------------------------------
610 * Local variables:
611 * c-basic-offset: 8
612 * End: