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Commit f1f32849 authored by Michael Krufky's avatar Michael Krufky Committed by Mauro Carvalho Chehab
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V4L/DVB (6543): tda8290: enable probing of tda8295 



Prevent the tda8295 from falsely being detected as a tda9887

Signed-off-by: default avatarMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 9b15c025

drivers/media/video/tda8290.c

+49 −15
Original line number Diff line number Diff line
@@ -632,6 +632,46 @@ static int tda829x_find_tuner(struct dvb_frontend *fe) 
	return 0;

}



static int tda8290_probe(struct tuner_i2c_props *i2c_props)

{

#define TDA8290_ID 0x89

	unsigned char tda8290_id[] = { 0x1f, 0x00 };



	/* detect tda8290 */

	tuner_i2c_xfer_send(i2c_props, &tda8290_id[0], 1);

	tuner_i2c_xfer_recv(i2c_props, &tda8290_id[1], 1);



	if (tda8290_id[1] == TDA8290_ID) {

		if (tuner_debug)

			printk(KERN_DEBUG "%s: tda8290 detected @ %d-%04x\n",

			       __FUNCTION__, i2c_adapter_id(i2c_props->adap),

			       i2c_props->addr);

		return 0;

	}



	return -1;

}



static int tda8295_probe(struct tuner_i2c_props *i2c_props)

{

#define TDA8295_ID 0x8a

	unsigned char tda8295_id[] = { 0x2f, 0x00 };



	/* detect tda8295 */

	tuner_i2c_xfer_send(i2c_props, &tda8295_id[0], 1);

	tuner_i2c_xfer_recv(i2c_props, &tda8295_id[1], 1);



	if (tda8295_id[1] == TDA8295_ID) {

		if (tuner_debug)

			printk(KERN_DEBUG "%s: tda8295 detected @ %d-%04x\n",

			       __FUNCTION__, i2c_adapter_id(i2c_props->adap),

			       i2c_props->addr);

		return 0;

	}



	return -1;

}



static struct analog_tuner_ops tda8290_tuner_ops = {

	.set_tv_freq    = tda8290_set_freq,

	.set_radio_freq = tda8290_set_freq,
@@ -655,11 +695,6 @@ int tda829x_attach(struct tuner *t) 
	struct dvb_frontend *fe = &t->fe;

	struct tda8290_priv *priv = NULL;



	unsigned char tda8290_id[] = { 0x1f, 0x00 };

#define TDA8290_ID 0x89

	unsigned char tda8295_id[] = { 0x2f, 0x00 };

#define TDA8295_ID 0x8a



	priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL);

	if (priv == NULL)

		return -ENOMEM;
@@ -671,18 +706,12 @@ int tda829x_attach(struct tuner *t) 
	priv->cfg.tuner_callback = t->tuner_callback;

	priv->t = t;



	/* detect tda8290 */

	tuner_i2c_xfer_send(&priv->i2c_props, &tda8290_id[0], 1);

	tuner_i2c_xfer_recv(&priv->i2c_props, &tda8290_id[1], 1);

	if (tda8290_id[1] == TDA8290_ID) {

	if (tda8290_probe(&priv->i2c_props) == 0) {

		priv->ver = TDA8290;

		fe->ops.analog_demod_ops = &tda8290_tuner_ops;

	}



	/* detect tda8295 */

	tuner_i2c_xfer_send(&priv->i2c_props, &tda8295_id[0], 1);

	tuner_i2c_xfer_recv(&priv->i2c_props, &tda8295_id[1], 1);

	if (tda8295_id[1] == TDA8295_ID) {

	if (tda8295_probe(&priv->i2c_props) == 0) {

		priv->ver = TDA8295;

		fe->ops.analog_demod_ops = &tda8295_tuner_ops;

	}
@@ -704,7 +733,7 @@ int tda829x_attach(struct tuner *t) 
}

EXPORT_SYMBOL_GPL(tda829x_attach);



int tda8290_probe(struct tuner *t)

int tda829x_probe(struct tuner *t)

{

	struct tuner_i2c_props i2c_props = {

		.adap = t->i2c->adapter,
@@ -718,6 +747,11 @@ int tda8290_probe(struct tuner *t) 
	unsigned char addr_dto_lsb = 0x07;

	unsigned char data;



	if ((tda8290_probe(&i2c_props) == 0) ||

	    (tda8295_probe(&i2c_props) == 0))

		return 0;



	/* fall back to old probing method */

	tuner_i2c_xfer_send(&i2c_props, easy_mode_b, 2);

	tuner_i2c_xfer_send(&i2c_props, soft_reset, 2);

	tuner_i2c_xfer_send(&i2c_props, &addr_dto_lsb, 1);
@@ -734,7 +768,7 @@ int tda8290_probe(struct tuner *t) 
	tuner_i2c_xfer_send(&i2c_props, restore_9886, 3);

	return -1;

}

EXPORT_SYMBOL_GPL(tda8290_probe);

EXPORT_SYMBOL_GPL(tda829x_probe);



MODULE_DESCRIPTION("Philips/NXP TDA8290/TDA8295 analog IF demodulator driver");

MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann, Michael Krufky");

drivers/media/video/tda8290.h

+2 −2
Original line number Diff line number Diff line
@@ -21,11 +21,11 @@ 
#include "tuner-driver.h"



#if defined(CONFIG_TUNER_TDA8290) || (defined(CONFIG_TUNER_TDA8290_MODULE) && defined(MODULE))

extern int tda8290_probe(struct tuner *t);

extern int tda829x_probe(struct tuner *t);



extern int tda829x_attach(struct tuner *t);

#else

static inline int tda8290_probe(struct tuner *t)

static inline int tda829x_probe(struct tuner *t)

{

	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);

	return -EINVAL;

drivers/media/video/tuner-core.c

+2 −2
Original line number Diff line number Diff line
@@ -649,8 +649,8 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind) 
		case 0x4b:

			/* If chip is not tda8290, don't register.

			   since it can be tda9887*/

			if (tda8290_probe(t) == 0) {

				tuner_dbg("chip at addr %x is a tda8290\n", addr);

			if (tda829x_probe(t) == 0) {

				tuner_dbg("tda829x detected\n");

			} else {

				/* Default is being tda9887 */

				t->type = TUNER_TDA9887;