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authorMichael Krufky <mkrufky@linuxtv.org>2007-10-22 08:56:38 -0400
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-01-25 16:01:06 -0500
commit5bea1cd3871351d70cc7624af138f8aa68b7be77 (patch)
tree77db506f3fb668e33e091aaa1cda2cf09da85085 /drivers/media/video/tda8290.c
parentce1f8bdb0cbe9c5f57cf0256ef75fce06152547f (diff)
V4L/DVB (6435): tda8290: add support for NXP TDA18271 tuner and TDA8295 analog demod
Add basic support for NXP TDA8295 analog demod and TDA18271 tuner silicon. TDA8295 + TDA8275a not yet tested. TDA8290 + TDA18271 not yet supported. Digital mode of TDA18271 not yet tested & needs more work. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/tda8290.c')
-rw-r--r--drivers/media/video/tda8290.c319
1 files changed, 313 insertions, 6 deletions
diff --git a/drivers/media/video/tda8290.c b/drivers/media/video/tda8290.c
index 5d30cbcd7361..a38ed9db6403 100644
--- a/drivers/media/video/tda8290.c
+++ b/drivers/media/video/tda8290.c
@@ -25,8 +25,9 @@
25#include <linux/videodev.h> 25#include <linux/videodev.h>
26#include "tda8290.h" 26#include "tda8290.h"
27#include "tda827x.h" 27#include "tda827x.h"
28#include "tda18271.h"
28 29
29static int tuner_debug = 0; 30static int tuner_debug;
30module_param_named(debug, tuner_debug, int, 0644); 31module_param_named(debug, tuner_debug, int, 0644);
31MODULE_PARM_DESC(debug, "enable verbose debug messages"); 32MODULE_PARM_DESC(debug, "enable verbose debug messages");
32 33
@@ -65,6 +66,34 @@ static void tda8290_i2c_bridge(struct tuner *t, int close)
65 } 66 }
66} 67}
67 68
69static void tda8295_i2c_bridge(struct tuner *t, int close)
70{
71 struct tda8290_priv *priv = t->priv;
72
73 unsigned char enable[2] = { 0x45, 0xc1 };
74 unsigned char disable[2] = { 0x46, 0x00 };
75 unsigned char buf[3] = { 0x45, 0x01, 0x00 };
76 unsigned char *msg;
77 if (close) {
78 msg = enable;
79 tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
80 /* let the bridge stabilize */
81 msleep(20);
82 } else {
83 msg = disable;
84 tuner_i2c_xfer_send(&priv->i2c_props, msg, 1);
85 tuner_i2c_xfer_recv(&priv->i2c_props, &msg[1], 1);
86
87 buf[2] = msg[1];
88 buf[2] &= ~0x04;
89 tuner_i2c_xfer_send(&priv->i2c_props, buf, 3);
90 msleep(5);
91
92 msg[1] |= 0x04;
93 tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
94 }
95}
96
68/*---------------------------------------------------------------------*/ 97/*---------------------------------------------------------------------*/
69 98
70static void set_audio(struct tuner *t) 99static void set_audio(struct tuner *t)
@@ -233,6 +262,153 @@ static void tda8290_set_freq(struct tuner *t, unsigned int freq)
233 262
234/*---------------------------------------------------------------------*/ 263/*---------------------------------------------------------------------*/
235 264
265static void tda8295_power(struct tuner *t, int enable)
266{
267 struct tda8290_priv *priv = t->priv;
268 unsigned char buf[] = { 0x30, 0x00 }; /* clb_stdbt */
269
270 tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
271 tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
272
273 if (enable)
274 buf[1] = 0x01;
275 else
276 buf[1] = 0x03;
277
278 tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
279}
280
281static void tda8295_set_easy_mode(struct tuner *t, int enable)
282{
283 struct tda8290_priv *priv = t->priv;
284 unsigned char buf[] = { 0x01, 0x00 };
285
286 tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
287 tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
288
289 if (enable)
290 buf[1] = 0x01; /* rising edge sets regs 0x02 - 0x23 */
291 else
292 buf[1] = 0x00; /* reset active bit */
293
294 tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
295}
296
297static void tda8295_set_video_std(struct tuner *t)
298{
299 struct tda8290_priv *priv = t->priv;
300 unsigned char buf[] = { 0x00, priv->tda8290_easy_mode };
301
302 tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
303
304 tda8295_set_easy_mode(t, 1);
305 msleep(20);
306 tda8295_set_easy_mode(t, 0);
307}
308
309/*---------------------------------------------------------------------*/
310
311static void tda8295_agc1_out(struct tuner *t, int enable)
312{
313 struct tda8290_priv *priv = t->priv;
314 unsigned char buf[] = { 0x02, 0x00 }; /* DIV_FUNC */
315
316 tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
317 tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
318
319 if (enable)
320 buf[1] &= ~0x40;
321 else
322 buf[1] |= 0x40;
323
324 tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
325}
326
327static void tda8295_agc2_out(struct tuner *t, int enable)
328{
329 struct tda8290_priv *priv = t->priv;
330 unsigned char set_gpio_cf[] = { 0x44, 0x00 };
331 unsigned char set_gpio_val[] = { 0x46, 0x00 };
332
333 tuner_i2c_xfer_send(&priv->i2c_props, &set_gpio_cf[0], 1);
334 tuner_i2c_xfer_recv(&priv->i2c_props, &set_gpio_cf[1], 1);
335 tuner_i2c_xfer_send(&priv->i2c_props, &set_gpio_val[0], 1);
336 tuner_i2c_xfer_recv(&priv->i2c_props, &set_gpio_val[1], 1);
337
338 set_gpio_cf[1] &= 0xf0; /* clear GPIO_0 bits 3-0 */
339
340 if (enable) {
341 set_gpio_cf[1] |= 0x01; /* config GPIO_0 as Open Drain Out */
342 set_gpio_val[1] &= 0xfe; /* set GPIO_0 pin low */
343 }
344 tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_cf, 2);
345 tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_val, 2);
346}
347
348static int tda8295_has_signal(struct tuner *t)
349{
350 struct tda8290_priv *priv = t->priv;
351
352 unsigned char hvpll_stat = 0x26;
353 unsigned char ret;
354
355 tuner_i2c_xfer_send(&priv->i2c_props, &hvpll_stat, 1);
356 tuner_i2c_xfer_recv(&priv->i2c_props, &ret, 1);
357 return (ret & 0x01) ? 65535 : 0;
358}
359
360/*---------------------------------------------------------------------*/
361
362static void tda8295_set_freq(struct tuner *t, unsigned int freq)
363{
364 struct tda8290_priv *priv = t->priv;
365 u16 ifc;
366
367 unsigned char blanking_mode[] = { 0x1d, 0x00 };
368
369 struct analog_parameters params = {
370 .frequency = freq,
371 .mode = t->mode,
372 .audmode = t->audmode,
373 .std = t->std
374 };
375
376 set_audio(t);
377
378 ifc = priv->cfg.sgIF; /* FIXME */
379
380 tuner_dbg("%s: ifc = %u, freq = %d\n", __FUNCTION__, ifc, freq);
381
382 tda8295_power(t, 1);
383 tda8295_agc1_out(t, 1);
384
385 tuner_i2c_xfer_send(&priv->i2c_props, &blanking_mode[0], 1);
386 tuner_i2c_xfer_recv(&priv->i2c_props, &blanking_mode[1], 1);
387
388 tda8295_set_video_std(t);
389
390 blanking_mode[1] = 0x03;
391 tuner_i2c_xfer_send(&priv->i2c_props, blanking_mode, 2);
392 msleep(20);
393
394 tda8295_i2c_bridge(t, 1);
395
396 if (t->fe.ops.tuner_ops.set_analog_params)
397 t->fe.ops.tuner_ops.set_analog_params(&t->fe, &params);
398
399 if (priv->cfg.agcf)
400 priv->cfg.agcf(&t->fe);
401
402 if (tda8295_has_signal(t))
403 tuner_dbg("tda8295 is locked\n");
404 else
405 tuner_dbg("tda8295 not locked, no signal?\n");
406
407 tda8295_i2c_bridge(t, 0);
408}
409
410/*---------------------------------------------------------------------*/
411
236static int tda8290_has_signal(struct tuner *t) 412static int tda8290_has_signal(struct tuner *t)
237{ 413{
238 struct tda8290_priv *priv = t->priv; 414 struct tda8290_priv *priv = t->priv;
@@ -264,6 +440,13 @@ static void tda8290_standby(struct tuner *t)
264 tuner_i2c_xfer_send(&priv->i2c_props, tda8290_standby, 2); 440 tuner_i2c_xfer_send(&priv->i2c_props, tda8290_standby, 2);
265} 441}
266 442
443static void tda8295_standby(struct tuner *t)
444{
445 tda8295_agc1_out(t, 0); /* Put AGC in tri-state */
446
447 tda8295_power(t, 0);
448}
449
267static void tda8290_init_if(struct tuner *t) 450static void tda8290_init_if(struct tuner *t)
268{ 451{
269 struct tda8290_priv *priv = t->priv; 452 struct tda8290_priv *priv = t->priv;
@@ -279,6 +462,35 @@ static void tda8290_init_if(struct tuner *t)
279 tuner_i2c_xfer_send(&priv->i2c_props, set_VS, 2); 462 tuner_i2c_xfer_send(&priv->i2c_props, set_VS, 2);
280} 463}
281 464
465static void tda8295_init_if(struct tuner *t)
466{
467 struct tda8290_priv *priv = t->priv;
468
469 static unsigned char set_adc_ctl[] = { 0x33, 0x14 };
470 static unsigned char set_adc_ctl2[] = { 0x34, 0x00 };
471 static unsigned char set_pll_reg6[] = { 0x3e, 0x63 };
472 static unsigned char set_pll_reg0[] = { 0x38, 0x23 };
473 static unsigned char set_pll_reg7[] = { 0x3f, 0x01 };
474 static unsigned char set_pll_reg10[] = { 0x42, 0x61 };
475 static unsigned char set_gpio_reg0[] = { 0x44, 0x0b };
476
477 tda8295_power(t, 1);
478
479 tda8295_set_easy_mode(t, 0);
480 tda8295_set_video_std(t);
481
482 tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl, 2);
483 tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl2, 2);
484 tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg6, 2);
485 tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg0, 2);
486 tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg7, 2);
487 tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg10, 2);
488 tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_reg0, 2);
489
490 tda8295_agc1_out(t, 0);
491 tda8295_agc2_out(t, 0);
492}
493
282static void tda8290_init_tuner(struct tuner *t) 494static void tda8290_init_tuner(struct tuner *t)
283{ 495{
284 struct tda8290_priv *priv = t->priv; 496 struct tda8290_priv *priv = t->priv;
@@ -298,7 +510,7 @@ static void tda8290_init_tuner(struct tuner *t)
298 510
299/*---------------------------------------------------------------------*/ 511/*---------------------------------------------------------------------*/
300 512
301static void tda8290_release(struct tuner *t) 513static void tda829x_release(struct tuner *t)
302{ 514{
303 if (t->fe.ops.tuner_ops.release) 515 if (t->fe.ops.tuner_ops.release)
304 t->fe.ops.tuner_ops.release(&t->fe); 516 t->fe.ops.tuner_ops.release(&t->fe);
@@ -312,7 +524,15 @@ static struct tuner_operations tda8290_tuner_ops = {
312 .set_radio_freq = tda8290_set_freq, 524 .set_radio_freq = tda8290_set_freq,
313 .has_signal = tda8290_has_signal, 525 .has_signal = tda8290_has_signal,
314 .standby = tda8290_standby, 526 .standby = tda8290_standby,
315 .release = tda8290_release, 527 .release = tda829x_release,
528};
529
530static struct tuner_operations tda8295_tuner_ops = {
531 .set_tv_freq = tda8295_set_freq,
532 .set_radio_freq = tda8295_set_freq,
533 .has_signal = tda8295_has_signal,
534 .standby = tda8295_standby,
535 .release = tda829x_release,
316}; 536};
317 537
318int tda8290_attach(struct tuner *t) 538int tda8290_attach(struct tuner *t)
@@ -403,6 +623,95 @@ int tda8290_attach(struct tuner *t)
403 tda8290_init_if(t); 623 tda8290_init_if(t);
404 return 0; 624 return 0;
405} 625}
626EXPORT_SYMBOL_GPL(tda8290_attach);
627
628int tda8295_attach(struct tuner *t)
629{
630 struct tda8290_priv *priv = NULL;
631 u8 data;
632 int i, ret, tuners_found;
633 u32 tuner_addrs;
634 struct i2c_msg msg = { .flags = I2C_M_RD, .buf = &data, .len = 1 };
635
636 priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL);
637 if (priv == NULL)
638 return -ENOMEM;
639 t->priv = priv;
640
641 priv->i2c_props.addr = t->i2c.addr;
642 priv->i2c_props.adap = t->i2c.adapter;
643
644 tda8295_i2c_bridge(t, 1);
645 /* probe for tuner chip */
646 tuners_found = 0;
647 tuner_addrs = 0;
648 for (i = 0x60; i <= 0x63; i++) {
649 msg.addr = i;
650 ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
651 if (ret == 1) {
652 tuners_found++;
653 tuner_addrs = (tuner_addrs << 8) + i;
654 }
655 }
656 /* if there is more than one tuner, we expect the right one is
657 behind the bridge and we choose the highest address that doesn't
658 give a response now
659 */
660 tda8295_i2c_bridge(t, 0);
661 if (tuners_found > 1)
662 for (i = 0; i < tuners_found; i++) {
663 msg.addr = tuner_addrs & 0xff;
664 ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
665 if (ret == 1)
666 tuner_addrs = tuner_addrs >> 8;
667 else
668 break;
669 }
670 if (tuner_addrs == 0) {
671 tuner_addrs = 0x60;
672 tuner_info("could not clearly identify tuner address, "
673 "defaulting to %x\n", tuner_addrs);
674 } else {
675 tuner_addrs = tuner_addrs & 0xff;
676 tuner_info("setting tuner address to %x\n", tuner_addrs);
677 }
678 priv->tda827x_addr = tuner_addrs;
679 msg.addr = tuner_addrs;
680
681 tda8295_i2c_bridge(t, 1);
682 ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
683 tda8295_i2c_bridge(t, 0);
684 if (ret != 1)
685 tuner_warn("TDA827x access failed!\n");
686 if ((data & 0x3c) == 0) {
687 strlcpy(t->i2c.name, "tda8295+18271", sizeof(t->i2c.name));
688 tda18271_attach(&t->fe, priv->tda827x_addr,
689 priv->i2c_props.adap);
690 priv->tda827x_ver = 4;
691 } else {
692 strlcpy(t->i2c.name, "tda8295+75a", sizeof(t->i2c.name));
693 tda827x_attach(&t->fe, priv->tda827x_addr,
694 priv->i2c_props.adap, &priv->cfg);
695
696 /* FIXME: tda827x module doesn't probe the tuner until
697 * tda827x_initial_sleep is called
698 */
699 if (t->fe.ops.tuner_ops.sleep)
700 t->fe.ops.tuner_ops.sleep(&t->fe);
701 priv->tda827x_ver = 2;
702 }
703 priv->tda827x_ver |= 1; /* signifies 8295 vs 8290 */
704 tuner_info("type set to %s\n", t->i2c.name);
705
706 memcpy(&t->ops, &tda8295_tuner_ops, sizeof(struct tuner_operations));
707
708 priv->cfg.tda827x_lpsel = 0;
709 t->mode = V4L2_TUNER_ANALOG_TV;
710
711 tda8295_init_if(t);
712 return 0;
713}
714EXPORT_SYMBOL_GPL(tda8295_attach);
406 715
407int tda8290_probe(struct tuner *t) 716int tda8290_probe(struct tuner *t)
408{ 717{
@@ -434,12 +743,10 @@ int tda8290_probe(struct tuner *t)
434 tuner_i2c_xfer_send(&i2c_props, restore_9886, 3); 743 tuner_i2c_xfer_send(&i2c_props, restore_9886, 3);
435 return -1; 744 return -1;
436} 745}
437
438EXPORT_SYMBOL_GPL(tda8290_probe); 746EXPORT_SYMBOL_GPL(tda8290_probe);
439EXPORT_SYMBOL_GPL(tda8290_attach);
440 747
441MODULE_DESCRIPTION("Philips TDA8290 + TDA8275 / TDA8275a tuner driver"); 748MODULE_DESCRIPTION("Philips TDA8290 + TDA8275 / TDA8275a tuner driver");
442MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann"); 749MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann, Michael Krufky");
443MODULE_LICENSE("GPL"); 750MODULE_LICENSE("GPL");
444 751
445/* 752/*