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V4L/DVB (5139): M920x: Fix tuner identification bug with qt1010 module 

Fixes qt1010 identification bug with megasky caused by
the Quantek QT1010 tuner module patch.

Signed-off-by: Aapo Tahkola <aet@rasterburn.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Aapo Tahkola 2007-01-21 15:57:20 -03:00 committed by Mauro Carvalho Chehab
parent 816172f8b9
commit 84ad7574f6
2 changed files with 41 additions and 14 deletions
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44
drivers/media/dvb/dvb-usb/m920x.c
View File

@ -134,6 +134,7 @@ static int m9206_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
static int m9206_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
struct m9206_state *m = d->priv;
int i;
int ret = 0;
@ -144,8 +145,6 @@ static int m9206_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int nu
return -EINVAL;
for (i = 0; i < num; i++) {
u8 w_len;
if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].addr, 0x80)) != 0)
goto unlock;
@ -153,13 +152,19 @@ static int m9206_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int nu
goto unlock;
if (i + 1 < num && msg[i + 1].flags & I2C_M_RD) {
/* Possibly device dependant */
if (msg[i].addr == d->adapter[0].pll_addr)
w_len = 0xc5;
else
w_len = 0x1f;
int i2c_i;
if ((ret = m9206_write(d->udev, M9206_I2C, w_len, 0x80)) != 0)
for (i2c_i = 0; i2c_i < M9206_I2C_MAX; i2c_i++)
if (msg[i].addr == m->i2c_r[i2c_i].addr)
break;
if (i2c_i >= M9206_I2C_MAX) {
deb_rc("No magic for i2c addr!\n");
ret = -EINVAL;
goto unlock;
}
if ((ret = m9206_write(d->udev, M9206_I2C, m->i2c_r[i2c_i].magic, 0x80)) != 0)
goto unlock;
if ((ret = m9206_read(d->udev, M9206_I2C, 0x0, 0x60, msg[i + 1].buf, msg[i + 1].len)) != 0)
@ -238,11 +243,17 @@ static struct mt352_config megasky_mt352_config = {
static int megasky_frontend_attach(struct dvb_usb_adapter *adap)
{
struct m9206_state *m = adap->dev->priv;
deb_rc("megasky_frontend_attach!\n");
if ((adap->fe = dvb_attach(mt352_attach, &megasky_mt352_config, &adap->dev->i2c_adap)) != NULL)
return 0;
m->i2c_r[M9206_I2C_DEMOD].addr = megasky_mt352_config.demod_address;
m->i2c_r[M9206_I2C_DEMOD].magic = 0x1f;
if ((adap->fe = dvb_attach(mt352_attach, &megasky_mt352_config, &adap->dev->i2c_adap)) == NULL)
return -EIO;
return 0;
}
static int m9206_set_filter(struct dvb_usb_adapter *adap, int type, int idx, int pid)
@ -389,9 +400,16 @@ static struct qt1010_config megasky_qt1010_config = {
static int megasky_tuner_attach(struct dvb_usb_adapter *adap)
{
return dvb_attach(qt1010_attach,
adap->fe, &adap->dev->i2c_adap,
&megasky_qt1010_config) == NULL ? -ENODEV : 0;
struct m9206_state *m = adap->dev->priv;
m->i2c_r[M9206_I2C_TUNER].addr = megasky_qt1010_config.i2c_address;
m->i2c_r[M9206_I2C_TUNER].magic = 0xc5;
if (dvb_attach(qt1010_attach, adap->fe, &adap->dev->i2c_adap,
&megasky_qt1010_config) == NULL)
return -ENODEV;
return 0;
}
/* DVB USB Driver stuff */

9
drivers/media/dvb/dvb-usb/m920x.h
View File

@ -18,9 +18,18 @@
#define M9206_FW 0x30
#define M9206_MAX_FILTERS 8
#define M9206_I2C_TUNER 0
#define M9206_I2C_DEMOD 1
#define M9206_I2C_MAX 2
struct m9206_state {
u16 filters[M9206_MAX_FILTERS];
int filtering_enabled;
int rep_count;
struct {
unsigned char addr;
unsigned char magic;
}i2c_r[M9206_I2C_MAX];
};
#endif