1 #include <linux/module.h>
2 #include <linux/moduleparam.h>
3 #include <linux/kernel.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>
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 (tda9887): " fmt, t->i2c.name, \
26 i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
27 #define tda9887_dbg(fmt, arg...) do {\
29 printk(KERN_INFO "%s %d-%04x (tda9887): " fmt, t->i2c.name, \
30 i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
33 /* ---------------------------------------------------------------------- */
45 /* ---------------------------------------------------------------------- */
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
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 cTopPalSecamDefault 0x14 // bit c0:4
88 #define cTopNtscRadioDefault 0x10 // bit c0:4
91 #define cAudioIF_4_5 0x00 // bit e0:1
92 #define cAudioIF_5_5 0x01 // bit e0:1
93 #define cAudioIF_6_0 0x02 // bit e0:1
94 #define cAudioIF_6_5 0x03 // bit e0:1
97 #define cVideoIF_58_75 0x00 // bit e2:4
98 #define cVideoIF_45_75 0x04 // bit e2:4
99 #define cVideoIF_38_90 0x08 // bit e2:4
100 #define cVideoIF_38_00 0x0C // bit e2:4
101 #define cVideoIF_33_90 0x10 // bit e2:4
102 #define cVideoIF_33_40 0x14 // bit e2:4
103 #define cRadioIF_45_75 0x18 // bit e2:4
104 #define cRadioIF_38_90 0x1C // bit e2:4
107 #define cTunerGainNormal 0x00 // bit e5
108 #define cTunerGainLow 0x20 // bit e5
110 #define cGating_18 0x00 // bit e6
111 #define cGating_36 0x40 // bit e6
113 #define cAgcOutON 0x80 // bit e7
114 #define cAgcOutOFF 0x00 // bit e7
116 /* ---------------------------------------------------------------------- */
118 static struct tvnorm tvnorms[] = {
120 .std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H | V4L2_STD_PAL_N,
122 .b = ( cNegativeFmTV |
124 .c = ( cDeemphasisON |
126 cTopPalSecamDefault),
131 .std = V4L2_STD_PAL_I,
133 .b = ( cNegativeFmTV |
135 .c = ( cDeemphasisON |
137 cTopPalSecamDefault),
142 .std = V4L2_STD_PAL_DK,
144 .b = ( cNegativeFmTV |
146 .c = ( cDeemphasisON |
148 cTopPalSecamDefault),
153 .std = V4L2_STD_PAL_M | V4L2_STD_PAL_Nc,
155 .b = ( cNegativeFmTV |
157 .c = ( cDeemphasisON |
159 cTopNtscRadioDefault),
164 .std = V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
166 .b = ( cPositiveAmTV |
168 .c = ( cTopPalSecamDefault),
173 .std = V4L2_STD_SECAM_L,
175 .b = ( cPositiveAmTV |
177 .c = ( cTopPalSecamDefault),
182 .std = V4L2_STD_SECAM_LC,
184 .b = ( cOutputPort2Inactive |
187 .c = ( cTopPalSecamDefault),
192 .std = V4L2_STD_SECAM_DK,
194 .b = ( cNegativeFmTV |
196 .c = ( cDeemphasisON |
198 cTopPalSecamDefault),
203 .std = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
205 .b = ( cNegativeFmTV |
207 .c = ( cDeemphasisON |
209 cTopNtscRadioDefault),
214 .std = V4L2_STD_NTSC_M_JP,
216 .b = ( cNegativeFmTV |
218 .c = ( cDeemphasisON |
220 cTopNtscRadioDefault),
227 static struct tvnorm radio_stereo = {
228 .name = "Radio Stereo",
231 .c = ( cDeemphasisOFF |
233 cTopNtscRadioDefault),
234 .e = ( cTunerGainLow |
239 static struct tvnorm radio_mono = {
240 .name = "Radio Mono",
243 .c = ( cDeemphasisON |
245 cTopNtscRadioDefault),
246 .e = ( cTunerGainLow |
251 /* ---------------------------------------------------------------------- */
253 static void dump_read_message(struct tuner *t, unsigned char *buf)
255 static char *afc[16] = {
273 tda9887_info("read: 0x%2x\n", buf[0]);
274 tda9887_info(" after power on : %s\n", (buf[0] & 0x01) ? "yes" : "no");
275 tda9887_info(" afc : %s\n", afc[(buf[0] >> 1) & 0x0f]);
276 tda9887_info(" fmif level : %s\n", (buf[0] & 0x20) ? "high" : "low");
277 tda9887_info(" afc window : %s\n", (buf[0] & 0x40) ? "in" : "out");
278 tda9887_info(" vfi level : %s\n", (buf[0] & 0x80) ? "high" : "low");
281 static void dump_write_message(struct tuner *t, unsigned char *buf)
283 static char *sound[4] = {
289 static char *adjust[32] = {
290 "-16", "-15", "-14", "-13", "-12", "-11", "-10", "-9",
291 "-8", "-7", "-6", "-5", "-4", "-3", "-2", "-1",
292 "0", "+1", "+2", "+3", "+4", "+5", "+6", "+7",
293 "+8", "+9", "+10", "+11", "+12", "+13", "+14", "+15"
295 static char *deemph[4] = {
296 "no", "no", "75", "50"
298 static char *carrier[4] = {
304 static char *vif[8] = {
314 static char *rif[4] = {
321 tda9887_info("write: byte B 0x%02x\n",buf[1]);
322 tda9887_info(" B0 video mode : %s\n",
323 (buf[1] & 0x01) ? "video trap" : "sound trap");
324 tda9887_info(" B1 auto mute fm : %s\n",
325 (buf[1] & 0x02) ? "yes" : "no");
326 tda9887_info(" B2 carrier mode : %s\n",
327 (buf[1] & 0x04) ? "QSS" : "Intercarrier");
328 tda9887_info(" B3-4 tv sound/radio : %s\n",
329 sound[(buf[1] & 0x18) >> 3]);
330 tda9887_info(" B5 force mute audio: %s\n",
331 (buf[1] & 0x20) ? "yes" : "no");
332 tda9887_info(" B6 output port 1 : %s\n",
333 (buf[1] & 0x40) ? "high (inactive)" : "low (active)");
334 tda9887_info(" B7 output port 2 : %s\n",
335 (buf[1] & 0x80) ? "high (inactive)" : "low (active)");
337 tda9887_info("write: byte C 0x%02x\n",buf[2]);
338 tda9887_info(" C0-4 top adjustment : %s dB\n", adjust[buf[2] & 0x1f]);
339 tda9887_info(" C5-6 de-emphasis : %s\n", deemph[(buf[2] & 0x60) >> 5]);
340 tda9887_info(" C7 audio gain : %s\n",
341 (buf[2] & 0x80) ? "-6" : "0");
343 tda9887_info("write: byte E 0x%02x\n",buf[3]);
344 tda9887_info(" E0-1 sound carrier : %s\n",
345 carrier[(buf[3] & 0x03)]);
346 tda9887_info(" E6 l pll gating : %s\n",
347 (buf[3] & 0x40) ? "36" : "13");
351 tda9887_info(" E2-4 video if : %s\n",
352 rif[(buf[3] & 0x0c) >> 2]);
353 tda9887_info(" E7 vif agc output : %s\n",
355 ? ((buf[3] & 0x10) ? "fm-agc radio" : "sif-agc radio")
356 : "fm radio carrier afc");
359 tda9887_info(" E2-4 video if : %s\n",
360 vif[(buf[3] & 0x1c) >> 2]);
361 tda9887_info(" E5 tuner gain : %s\n",
363 ? ((buf[3] & 0x20) ? "external" : "normal")
364 : ((buf[3] & 0x20) ? "minimum" : "normal"));
365 tda9887_info(" E7 vif agc output : %s\n",
368 ? "pin3 port, pin22 vif agc out"
369 : "pin22 port, pin3 vif acg ext in")
370 : "pin3+pin22 port");
372 tda9887_info("--\n");
375 /* ---------------------------------------------------------------------- */
377 static int tda9887_set_tvnorm(struct tuner *t, char *buf)
379 struct tvnorm *norm = NULL;
382 if (t->mode == V4L2_TUNER_RADIO) {
383 if (t->audmode == V4L2_TUNER_MODE_MONO)
386 norm = &radio_stereo;
388 for (i = 0; i < ARRAY_SIZE(tvnorms); i++) {
389 if (tvnorms[i].std & t->std) {
396 tda9887_dbg("Unsupported tvnorm entry - audio muted\n");
400 tda9887_dbg("configure for: %s\n",norm->name);
407 static unsigned int port1 = UNSET;
408 static unsigned int port2 = UNSET;
409 static unsigned int qss = UNSET;
410 static unsigned int adjust = UNSET;
412 module_param(port1, int, 0644);
413 module_param(port2, int, 0644);
414 module_param(qss, int, 0644);
415 module_param(adjust, int, 0644);
417 static int tda9887_set_insmod(struct tuner *t, char *buf)
419 if (UNSET != port1) {
421 buf[1] |= cOutputPort1Inactive;
423 buf[1] &= ~cOutputPort1Inactive;
425 if (UNSET != port2) {
427 buf[1] |= cOutputPort2Inactive;
429 buf[1] &= ~cOutputPort2Inactive;
439 if (adjust >= 0x00 && adjust < 0x20) {
446 static int tda9887_set_config(struct tuner *t, char *buf)
448 if (t->tda9887_config & TDA9887_PORT1_ACTIVE)
449 buf[1] &= ~cOutputPort1Inactive;
450 if (t->tda9887_config & TDA9887_PORT1_INACTIVE)
451 buf[1] |= cOutputPort1Inactive;
452 if (t->tda9887_config & TDA9887_PORT2_ACTIVE)
453 buf[1] &= ~cOutputPort2Inactive;
454 if (t->tda9887_config & TDA9887_PORT2_INACTIVE)
455 buf[1] |= cOutputPort2Inactive;
457 if (t->tda9887_config & TDA9887_QSS)
459 if (t->tda9887_config & TDA9887_INTERCARRIER)
462 if (t->tda9887_config & TDA9887_AUTOMUTE)
463 buf[1] |= cAutoMuteFmActive;
464 if (t->tda9887_config & TDA9887_DEEMPHASIS_MASK) {
466 switch (t->tda9887_config & TDA9887_DEEMPHASIS_MASK) {
467 case TDA9887_DEEMPHASIS_NONE:
468 buf[2] |= cDeemphasisOFF;
470 case TDA9887_DEEMPHASIS_50:
471 buf[2] |= cDeemphasisON | cDeemphasis50;
473 case TDA9887_DEEMPHASIS_75:
474 buf[2] |= cDeemphasisON | cDeemphasis75;
478 if (t->tda9887_config & TDA9887_TOP_SET) {
480 buf[2] |= (t->tda9887_config >> 8) & cTopMask;
482 if ((t->tda9887_config & TDA9887_INTERCARRIER_NTSC) && (t->std & V4L2_STD_NTSC))
487 /* ---------------------------------------------------------------------- */
489 static int tda9887_status(struct tuner *t)
491 unsigned char buf[1];
494 memset(buf,0,sizeof(buf));
495 if (1 != (rc = i2c_master_recv(&t->i2c,buf,1)))
496 tda9887_info("i2c i/o error: rc == %d (should be 1)\n",rc);
497 dump_read_message(t, buf);
501 static void tda9887_configure(struct i2c_client *client)
503 struct tuner *t = i2c_get_clientdata(client);
506 memset(t->tda9887_data,0,sizeof(t->tda9887_data));
507 tda9887_set_tvnorm(t,t->tda9887_data);
509 /* A note on the port settings:
510 These settings tend to depend on the specifics of the board.
511 By default they are set to inactive (bit value 1) by this driver,
512 overwriting any changes made by the tvnorm. This means that it
513 is the responsibility of the module using the tda9887 to set
514 these values in case of changes in the tvnorm.
515 In many cases port 2 should be made active (0) when selecting
516 SECAM-L, and port 2 should remain inactive (1) for SECAM-L'.
518 For the other standards the tda9887 application note says that
519 the ports should be set to active (0), but, again, that may
520 differ depending on the precise hardware configuration.
522 t->tda9887_data[1] |= cOutputPort1Inactive;
523 t->tda9887_data[1] |= cOutputPort2Inactive;
525 tda9887_set_config(t,t->tda9887_data);
526 tda9887_set_insmod(t,t->tda9887_data);
528 if (t->mode == T_STANDBY) {
529 t->tda9887_data[1] |= cForcedMuteAudioON;
532 tda9887_dbg("writing: b=0x%02x c=0x%02x e=0x%02x\n",
533 t->tda9887_data[1],t->tda9887_data[2],t->tda9887_data[3]);
535 dump_write_message(t, t->tda9887_data);
537 if (4 != (rc = i2c_master_send(&t->i2c,t->tda9887_data,4)))
538 tda9887_info("i2c i/o error: rc == %d (should be 4)\n",rc);
540 if (tuner_debug > 2) {
541 msleep_interruptible(1000);
546 /* ---------------------------------------------------------------------- */
548 static void tda9887_tuner_status(struct i2c_client *client)
550 struct tuner *t = i2c_get_clientdata(client);
551 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]);
554 static int tda9887_get_afc(struct i2c_client *client)
556 struct tuner *t = i2c_get_clientdata(client);
557 static int AFC_BITS_2_kHz[] = {
558 -12500, -37500, -62500, -97500,
559 -112500, -137500, -162500, -187500,
560 187500, 162500, 137500, 112500,
561 97500 , 62500, 37500 , 12500
566 if (1 == i2c_master_recv(&t->i2c,®,1))
567 afc = AFC_BITS_2_kHz[(reg>>1)&0x0f];
572 static void tda9887_standby(struct i2c_client *client)
574 tda9887_configure(client);
577 static void tda9887_set_freq(struct i2c_client *client, unsigned int freq)
579 tda9887_configure(client);
582 int tda9887_tuner_init(struct i2c_client *c)
584 struct tuner *t = i2c_get_clientdata(c);
586 strlcpy(c->name, "tda9887", sizeof(c->name));
588 tda9887_info("tda988[5/6/7] found @ 0x%x (%s)\n", t->i2c.addr,
589 t->i2c.driver->driver.name);
591 t->set_tv_freq = tda9887_set_freq;
592 t->set_radio_freq = tda9887_set_freq;
593 t->standby = tda9887_standby;
594 t->tuner_status=tda9887_tuner_status;
595 t->get_afc=tda9887_get_afc;
601 * Overrides for Emacs so that we follow Linus's tabbing style.
602 * ---------------------------------------------------------------------------