Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f1f32849d65ab1eacfedbabb624876ac06c1af9f
Commit: f1f32849d65ab1eacfedbabb624876ac06c1af9f
Parent: 9b15c0251ba9d20dd88a69b2c607a2f2e5f0133a
Author: Michael Krufky <[EMAIL PROTECTED]>
AuthorDate: Sat Nov 3 22:14:54 2007 -0300
Committer: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
CommitDate: Fri Jan 25 19:01:56 2008 -0200
V4L/DVB (6543): tda8290: enable probing of tda8295
Prevent the tda8295 from falsely being detected as a tda9887
Signed-off-by: Michael Krufky <[EMAIL PROTECTED]>
Signed-off-by: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
---
drivers/media/video/tda8290.c | 64 +++++++++++++++++++++++++++++---------
drivers/media/video/tda8290.h | 4 +-
drivers/media/video/tuner-core.c | 4 +-
3 files changed, 53 insertions(+), 19 deletions(-)
diff --git a/drivers/media/video/tda8290.c b/drivers/media/video/tda8290.c
index c7705cb..dd23996 100644
--- a/drivers/media/video/tda8290.c
+++ b/drivers/media/video/tda8290.c
@@ -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");
diff --git a/drivers/media/video/tda8290.h b/drivers/media/video/tda8290.h
index 8151737..3a1f045 100644
--- a/drivers/media/video/tda8290.h
+++ b/drivers/media/video/tda8290.h
@@ -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;
diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
index 17c873c..3ec50db 100644
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -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;
-
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