1 #include <linux/module.h>
2 #include <linux/kernel.h>
4 #include <linux/types.h>
5 #include <linux/init.h>
6 #include <linux/errno.h>
7 #include <linux/slab.h>
8 #include <linux/delay.h>
9 #include <linux/videodev.h>
10 #include <media/v4l2-common.h>
11 #include <media/tuner.h>
12 #include "tuner-driver.h"
13 #include "tuner-i2c.h"
19 TDA9886 (PAL, SECAM, NTSC)
20 TDA9887 (PAL, SECAM, NTSC, FM Radio)
22 Used as part of several tuners
26 module_param(debug, int, 0644);
27 MODULE_PARM_DESC(debug, "enable verbose debug messages");
29 #define PREFIX "tda9887"
32 struct tuner_i2c_props i2c_props;
34 unsigned char data[4];
41 /* ---------------------------------------------------------------------- */
53 /* ---------------------------------------------------------------------- */
60 #define cVideoTrapBypassOFF 0x00 // bit b0
61 #define cVideoTrapBypassON 0x01 // bit b0
63 #define cAutoMuteFmInactive 0x00 // bit b1
64 #define cAutoMuteFmActive 0x02 // bit b1
66 #define cIntercarrier 0x00 // bit b2
67 #define cQSS 0x04 // bit b2
69 #define cPositiveAmTV 0x00 // bit b3:4
70 #define cFmRadio 0x08 // bit b3:4
71 #define cNegativeFmTV 0x10 // bit b3:4
74 #define cForcedMuteAudioON 0x20 // bit b5
75 #define cForcedMuteAudioOFF 0x00 // bit b5
77 #define cOutputPort1Active 0x00 // bit b6
78 #define cOutputPort1Inactive 0x40 // bit b6
80 #define cOutputPort2Active 0x00 // bit b7
81 #define cOutputPort2Inactive 0x80 // bit b7
85 #define cDeemphasisOFF 0x00 // bit c5
86 #define cDeemphasisON 0x20 // bit c5
88 #define cDeemphasis75 0x00 // bit c6
89 #define cDeemphasis50 0x40 // bit c6
91 #define cAudioGain0 0x00 // bit c7
92 #define cAudioGain6 0x80 // bit c7
94 #define cTopMask 0x1f // bit c0:4
95 #define cTopDefault 0x10 // bit c0:4
98 #define cAudioIF_4_5 0x00 // bit e0:1
99 #define cAudioIF_5_5 0x01 // bit e0:1
100 #define cAudioIF_6_0 0x02 // bit e0:1
101 #define cAudioIF_6_5 0x03 // bit e0:1
104 #define cVideoIFMask 0x1c // bit e2:4
105 /* Video IF selection in TV Mode (bit B3=0) */
106 #define cVideoIF_58_75 0x00 // bit e2:4
107 #define cVideoIF_45_75 0x04 // bit e2:4
108 #define cVideoIF_38_90 0x08 // bit e2:4
109 #define cVideoIF_38_00 0x0C // bit e2:4
110 #define cVideoIF_33_90 0x10 // bit e2:4
111 #define cVideoIF_33_40 0x14 // bit e2:4
112 #define cRadioIF_45_75 0x18 // bit e2:4
113 #define cRadioIF_38_90 0x1C // bit e2:4
115 /* IF1 selection in Radio Mode (bit B3=1) */
116 #define cRadioIF_33_30 0x00 // bit e2,4 (also 0x10,0x14)
117 #define cRadioIF_41_30 0x04 // bit e2,4
119 /* Output of AFC pin in radio mode when bit E7=1 */
120 #define cRadioAGC_SIF 0x00 // bit e3
121 #define cRadioAGC_FM 0x08 // bit e3
123 #define cTunerGainNormal 0x00 // bit e5
124 #define cTunerGainLow 0x20 // bit e5
126 #define cGating_18 0x00 // bit e6
127 #define cGating_36 0x40 // bit e6
129 #define cAgcOutON 0x80 // bit e7
130 #define cAgcOutOFF 0x00 // bit e7
132 /* ---------------------------------------------------------------------- */
134 static struct tvnorm tvnorms[] = {
136 .std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H | V4L2_STD_PAL_N,
138 .b = ( cNegativeFmTV |
140 .c = ( cDeemphasisON |
147 .std = V4L2_STD_PAL_I,
149 .b = ( cNegativeFmTV |
151 .c = ( cDeemphasisON |
158 .std = V4L2_STD_PAL_DK,
160 .b = ( cNegativeFmTV |
162 .c = ( cDeemphasisON |
169 .std = V4L2_STD_PAL_M | V4L2_STD_PAL_Nc,
171 .b = ( cNegativeFmTV |
173 .c = ( cDeemphasisON |
180 .std = V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
182 .b = ( cPositiveAmTV |
189 .std = V4L2_STD_SECAM_L,
191 .b = ( cPositiveAmTV |
198 .std = V4L2_STD_SECAM_LC,
200 .b = ( cOutputPort2Inactive |
208 .std = V4L2_STD_SECAM_DK,
210 .b = ( cNegativeFmTV |
212 .c = ( cDeemphasisON |
219 .std = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
221 .b = ( cNegativeFmTV |
223 .c = ( cDeemphasisON |
230 .std = V4L2_STD_NTSC_M_JP,
232 .b = ( cNegativeFmTV |
234 .c = ( cDeemphasisON |
243 static struct tvnorm radio_stereo = {
244 .name = "Radio Stereo",
247 .c = ( cDeemphasisOFF |
250 .e = ( cTunerGainLow |
255 static struct tvnorm radio_mono = {
256 .name = "Radio Mono",
259 .c = ( cDeemphasisON |
262 .e = ( cTunerGainLow |
267 /* ---------------------------------------------------------------------- */
269 static void dump_read_message(struct dvb_frontend *fe, unsigned char *buf)
271 struct tda9887_priv *priv = fe->analog_demod_priv;
273 static char *afc[16] = {
291 tuner_info("read: 0x%2x\n", buf[0]);
292 tuner_info(" after power on : %s\n", (buf[0] & 0x01) ? "yes" : "no");
293 tuner_info(" afc : %s\n", afc[(buf[0] >> 1) & 0x0f]);
294 tuner_info(" fmif level : %s\n", (buf[0] & 0x20) ? "high" : "low");
295 tuner_info(" afc window : %s\n", (buf[0] & 0x40) ? "in" : "out");
296 tuner_info(" vfi level : %s\n", (buf[0] & 0x80) ? "high" : "low");
299 static void dump_write_message(struct dvb_frontend *fe, unsigned char *buf)
301 struct tda9887_priv *priv = fe->analog_demod_priv;
303 static char *sound[4] = {
309 static char *adjust[32] = {
310 "-16", "-15", "-14", "-13", "-12", "-11", "-10", "-9",
311 "-8", "-7", "-6", "-5", "-4", "-3", "-2", "-1",
312 "0", "+1", "+2", "+3", "+4", "+5", "+6", "+7",
313 "+8", "+9", "+10", "+11", "+12", "+13", "+14", "+15"
315 static char *deemph[4] = {
316 "no", "no", "75", "50"
318 static char *carrier[4] = {
324 static char *vif[8] = {
334 static char *rif[4] = {
341 tuner_info("write: byte B 0x%02x\n", buf[1]);
342 tuner_info(" B0 video mode : %s\n",
343 (buf[1] & 0x01) ? "video trap" : "sound trap");
344 tuner_info(" B1 auto mute fm : %s\n",
345 (buf[1] & 0x02) ? "yes" : "no");
346 tuner_info(" B2 carrier mode : %s\n",
347 (buf[1] & 0x04) ? "QSS" : "Intercarrier");
348 tuner_info(" B3-4 tv sound/radio : %s\n",
349 sound[(buf[1] & 0x18) >> 3]);
350 tuner_info(" B5 force mute audio: %s\n",
351 (buf[1] & 0x20) ? "yes" : "no");
352 tuner_info(" B6 output port 1 : %s\n",
353 (buf[1] & 0x40) ? "high (inactive)" : "low (active)");
354 tuner_info(" B7 output port 2 : %s\n",
355 (buf[1] & 0x80) ? "high (inactive)" : "low (active)");
357 tuner_info("write: byte C 0x%02x\n", buf[2]);
358 tuner_info(" C0-4 top adjustment : %s dB\n",
359 adjust[buf[2] & 0x1f]);
360 tuner_info(" C5-6 de-emphasis : %s\n",
361 deemph[(buf[2] & 0x60) >> 5]);
362 tuner_info(" C7 audio gain : %s\n",
363 (buf[2] & 0x80) ? "-6" : "0");
365 tuner_info("write: byte E 0x%02x\n", buf[3]);
366 tuner_info(" E0-1 sound carrier : %s\n",
367 carrier[(buf[3] & 0x03)]);
368 tuner_info(" E6 l pll gating : %s\n",
369 (buf[3] & 0x40) ? "36" : "13");
373 tuner_info(" E2-4 video if : %s\n",
374 rif[(buf[3] & 0x0c) >> 2]);
375 tuner_info(" E7 vif agc output : %s\n",
377 ? ((buf[3] & 0x10) ? "fm-agc radio" :
379 : "fm radio carrier afc");
382 tuner_info(" E2-4 video if : %s\n",
383 vif[(buf[3] & 0x1c) >> 2]);
384 tuner_info(" E5 tuner gain : %s\n",
386 ? ((buf[3] & 0x20) ? "external" : "normal")
387 : ((buf[3] & 0x20) ? "minimum" : "normal"));
388 tuner_info(" E7 vif agc output : %s\n",
389 (buf[3] & 0x80) ? ((buf[3] & 0x20)
390 ? "pin3 port, pin22 vif agc out"
391 : "pin22 port, pin3 vif acg ext in")
392 : "pin3+pin22 port");
397 /* ---------------------------------------------------------------------- */
399 static int tda9887_set_tvnorm(struct dvb_frontend *fe)
401 struct tda9887_priv *priv = fe->analog_demod_priv;
402 struct tvnorm *norm = NULL;
403 char *buf = priv->data;
406 if (priv->mode == V4L2_TUNER_RADIO) {
407 if (priv->audmode == V4L2_TUNER_MODE_MONO)
410 norm = &radio_stereo;
412 for (i = 0; i < ARRAY_SIZE(tvnorms); i++) {
413 if (tvnorms[i].std & priv->std) {
420 tuner_dbg("Unsupported tvnorm entry - audio muted\n");
424 tuner_dbg("configure for: %s\n", norm->name);
431 static unsigned int port1 = UNSET;
432 static unsigned int port2 = UNSET;
433 static unsigned int qss = UNSET;
434 static unsigned int adjust = UNSET;
436 module_param(port1, int, 0644);
437 module_param(port2, int, 0644);
438 module_param(qss, int, 0644);
439 module_param(adjust, int, 0644);
441 static int tda9887_set_insmod(struct dvb_frontend *fe)
443 struct tda9887_priv *priv = fe->analog_demod_priv;
444 char *buf = priv->data;
446 if (UNSET != port1) {
448 buf[1] |= cOutputPort1Inactive;
450 buf[1] &= ~cOutputPort1Inactive;
452 if (UNSET != port2) {
454 buf[1] |= cOutputPort2Inactive;
456 buf[1] &= ~cOutputPort2Inactive;
466 if (adjust >= 0x00 && adjust < 0x20) {
473 static int tda9887_do_config(struct dvb_frontend *fe)
475 struct tda9887_priv *priv = fe->analog_demod_priv;
476 char *buf = priv->data;
478 if (priv->config & TDA9887_PORT1_ACTIVE)
479 buf[1] &= ~cOutputPort1Inactive;
480 if (priv->config & TDA9887_PORT1_INACTIVE)
481 buf[1] |= cOutputPort1Inactive;
482 if (priv->config & TDA9887_PORT2_ACTIVE)
483 buf[1] &= ~cOutputPort2Inactive;
484 if (priv->config & TDA9887_PORT2_INACTIVE)
485 buf[1] |= cOutputPort2Inactive;
487 if (priv->config & TDA9887_QSS)
489 if (priv->config & TDA9887_INTERCARRIER)
492 if (priv->config & TDA9887_AUTOMUTE)
493 buf[1] |= cAutoMuteFmActive;
494 if (priv->config & TDA9887_DEEMPHASIS_MASK) {
496 switch (priv->config & TDA9887_DEEMPHASIS_MASK) {
497 case TDA9887_DEEMPHASIS_NONE:
498 buf[2] |= cDeemphasisOFF;
500 case TDA9887_DEEMPHASIS_50:
501 buf[2] |= cDeemphasisON | cDeemphasis50;
503 case TDA9887_DEEMPHASIS_75:
504 buf[2] |= cDeemphasisON | cDeemphasis75;
508 if (priv->config & TDA9887_TOP_SET) {
510 buf[2] |= (priv->config >> 8) & cTopMask;
512 if ((priv->config & TDA9887_INTERCARRIER_NTSC) &&
513 (priv->std & V4L2_STD_NTSC))
515 if (priv->config & TDA9887_GATING_18)
516 buf[3] &= ~cGating_36;
518 if (priv->mode == V4L2_TUNER_RADIO) {
519 if (priv->config & TDA9887_RIF_41_3) {
520 buf[3] &= ~cVideoIFMask;
521 buf[3] |= cRadioIF_41_30;
523 if (priv->config & TDA9887_GAIN_NORMAL)
524 buf[3] &= ~cTunerGainLow;
530 /* ---------------------------------------------------------------------- */
532 static int tda9887_status(struct dvb_frontend *fe)
534 struct tda9887_priv *priv = fe->analog_demod_priv;
535 unsigned char buf[1];
538 memset(buf,0,sizeof(buf));
539 if (1 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props,buf,1)))
540 tuner_info("i2c i/o error: rc == %d (should be 1)\n", rc);
541 dump_read_message(fe, buf);
545 static void tda9887_configure(struct dvb_frontend *fe)
547 struct tda9887_priv *priv = fe->analog_demod_priv;
550 memset(priv->data,0,sizeof(priv->data));
551 tda9887_set_tvnorm(fe);
553 /* A note on the port settings:
554 These settings tend to depend on the specifics of the board.
555 By default they are set to inactive (bit value 1) by this driver,
556 overwriting any changes made by the tvnorm. This means that it
557 is the responsibility of the module using the tda9887 to set
558 these values in case of changes in the tvnorm.
559 In many cases port 2 should be made active (0) when selecting
560 SECAM-L, and port 2 should remain inactive (1) for SECAM-L'.
562 For the other standards the tda9887 application note says that
563 the ports should be set to active (0), but, again, that may
564 differ depending on the precise hardware configuration.
566 priv->data[1] |= cOutputPort1Inactive;
567 priv->data[1] |= cOutputPort2Inactive;
569 tda9887_do_config(fe);
570 tda9887_set_insmod(fe);
572 if (priv->mode == T_STANDBY)
573 priv->data[1] |= cForcedMuteAudioON;
575 tuner_dbg("writing: b=0x%02x c=0x%02x e=0x%02x\n",
576 priv->data[1], priv->data[2], priv->data[3]);
578 dump_write_message(fe, priv->data);
580 if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,priv->data,4)))
581 tuner_info("i2c i/o error: rc == %d (should be 4)\n", rc);
584 msleep_interruptible(1000);
589 /* ---------------------------------------------------------------------- */
591 static void tda9887_tuner_status(struct dvb_frontend *fe)
593 struct tda9887_priv *priv = fe->analog_demod_priv;
594 tuner_info("Data bytes: b=0x%02x c=0x%02x e=0x%02x\n",
595 priv->data[1], priv->data[2], priv->data[3]);
598 static int tda9887_get_afc(struct dvb_frontend *fe)
600 struct tda9887_priv *priv = fe->analog_demod_priv;
601 static int AFC_BITS_2_kHz[] = {
602 -12500, -37500, -62500, -97500,
603 -112500, -137500, -162500, -187500,
604 187500, 162500, 137500, 112500,
605 97500 , 62500, 37500 , 12500
610 if (1 == tuner_i2c_xfer_recv(&priv->i2c_props,®,1))
611 afc = AFC_BITS_2_kHz[(reg>>1)&0x0f];
616 static void tda9887_standby(struct dvb_frontend *fe)
618 struct tda9887_priv *priv = fe->analog_demod_priv;
620 priv->mode = T_STANDBY;
622 tda9887_configure(fe);
625 static void tda9887_set_params(struct dvb_frontend *fe,
626 struct analog_parameters *params)
628 struct tda9887_priv *priv = fe->analog_demod_priv;
630 priv->mode = params->mode;
631 priv->audmode = params->audmode;
632 priv->std = params->std;
633 tda9887_configure(fe);
636 static int tda9887_set_config(struct dvb_frontend *fe, void *priv_cfg)
638 struct tda9887_priv *priv = fe->analog_demod_priv;
640 priv->config = *(unsigned int *)priv_cfg;
641 tda9887_configure(fe);
646 static void tda9887_release(struct dvb_frontend *fe)
648 kfree(fe->analog_demod_priv);
649 fe->analog_demod_priv = NULL;
652 static struct analog_tuner_ops tda9887_tuner_ops = {
656 .set_params = tda9887_set_params,
657 .standby = tda9887_standby,
658 .tuner_status = tda9887_tuner_status,
659 .get_afc = tda9887_get_afc,
660 .release = tda9887_release,
661 .set_config = tda9887_set_config,
664 struct dvb_frontend *tda9887_attach(struct dvb_frontend *fe,
665 struct i2c_adapter *i2c_adap,
668 struct tda9887_priv *priv = NULL;
670 priv = kzalloc(sizeof(struct tda9887_priv), GFP_KERNEL);
673 fe->analog_demod_priv = priv;
675 priv->i2c_props.addr = i2c_addr;
676 priv->i2c_props.adap = i2c_adap;
677 priv->mode = T_STANDBY;
679 tuner_info("tda988[5/6/7] found\n");
681 fe->ops.analog_demod_ops = &tda9887_tuner_ops;
685 EXPORT_SYMBOL_GPL(tda9887_attach);
687 MODULE_LICENSE("GPL");
690 * Overrides for Emacs so that we follow Linus's tabbing style.
691 * ---------------------------------------------------------------------------