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V4L/DVB (3303): TDA8290 update

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This patch
- works around a bug in the I2C bridge that makes the initialization
  of the TDA10046 fail on recent LifeView cards
- puts the AGC output to tristate in sleep mode. This is necessary for
  recent hybrid cards that switch the AGC via tristateing.

Signed-off-by: Hartmut Hackmann<hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hartmut Hackmann 2006-02-07 06:49:09 -02:00 committed by Mauro Carvalho Chehab
parent 3d8466ece4
commit 0157a9cc72
1 changed files with 6 additions and 2 deletions
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8
drivers/media/video/tda8290.c
View file

@ -281,7 +281,7 @@ static void tda827xa_agcf(struct i2c_client *c)
static void tda8290_i2c_bridge(struct i2c_client *c, int close)
{
unsigned char enable[2] = { 0x21, 0xC0 };
unsigned char disable[2] = { 0x21, 0x80 };
unsigned char disable[2] = { 0x21, 0x00 };
unsigned char *msg;
if(close) {
msg = enable;
@ -302,6 +302,7 @@ static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq)
unsigned char soft_reset[] = { 0x00, 0x00 };
unsigned char easy_mode[] = { 0x01, t->tda8290_easy_mode };
unsigned char expert_mode[] = { 0x01, 0x80 };
unsigned char agc_out_on[] = { 0x02, 0x00 };
unsigned char gainset_off[] = { 0x28, 0x14 };
unsigned char if_agc_spd[] = { 0x0f, 0x88 };
unsigned char adc_head_6[] = { 0x05, 0x04 };
@ -320,6 +321,7 @@ static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq)
pll_stat;
i2c_master_send(c, easy_mode, 2);
i2c_master_send(c, agc_out_on, 2);
i2c_master_send(c, soft_reset, 2);
msleep(1);
@ -470,6 +472,7 @@ static void standby(struct i2c_client *c)
struct tuner *t = i2c_get_clientdata(c);
unsigned char cb1[] = { 0x30, 0xD0 };
unsigned char tda8290_standby[] = { 0x00, 0x02 };
unsigned char tda8290_agc_tri[] = { 0x02, 0x20 };
struct i2c_msg msg = {.addr = t->tda827x_addr, .flags=0, .buf=cb1, .len = 2};
tda8290_i2c_bridge(c, 1);
@ -477,6 +480,7 @@ static void standby(struct i2c_client *c)
cb1[1] = 0x90;
i2c_transfer(c->adapter, &msg, 1);
tda8290_i2c_bridge(c, 0);
i2c_master_send(c, tda8290_agc_tri, 2);
i2c_master_send(c, tda8290_standby, 2);
}
@ -565,7 +569,7 @@ int tda8290_init(struct i2c_client *c)
strlcpy(c->name, "tda8290+75a", sizeof(c->name));
t->tda827x_ver = 2;
}
tuner_info("tuner: type set to %s\n", c->name);
tuner_info("type set to %s\n", c->name);
t->set_tv_freq = set_tv_freq;
t->set_radio_freq = set_radio_freq;