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[media] mb86a20s: add support for serial streams 

By comparing the traffic between Pixelview (cx23102-based and Kworld
(saa7134-based), the only difference is at register 0xd5. After some
tests, It seems that it is used to change mode between serial and parallel.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2010-10-03 16:48:49 -03:00
parent 55fa288dec
commit 7572f9c557
3 changed files with 15 additions and 5 deletions
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18
drivers/media/dvb/frontends/mb86a20s.c
View File

@ -43,10 +43,6 @@ struct mb86a20s_state {
const struct mb86a20s_config *config;
struct dvb_frontend frontend;
};
struct regdata {
@ -175,7 +171,7 @@ static struct regdata mb86a20s_init[] = {
{ 0x45, 0x04 },
{ 0x48, 0x04 },
{ 0x50, 0xd5 },
{ 0x51, 0x01 },
{ 0x51, 0x01 }, /* Serial */
{ 0x50, 0xd6 },
{ 0x51, 0x1f },
{ 0x50, 0xd2 },
@ -376,6 +372,7 @@ static int mb86a20s_initfe(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
int rc;
u8 regD5 = 1;
dprintk("\n");
@ -384,6 +381,17 @@ static int mb86a20s_initfe(struct dvb_frontend *fe)
if (rc < 0)
return rc;
if (!state->config->is_serial) {
regD5 &= ~1;
rc = mb86a20s_writereg(state, 0x50, 0xd5);
if (rc < 0)
return rc;
rc = mb86a20s_writereg(state, 0x51, regD5);
if (rc < 0)
return rc;
}
return 0;
}

1
drivers/media/dvb/frontends/mb86a20s.h
View File

@ -26,6 +26,7 @@
struct mb86a20s_config {
u8 demod_address;
bool is_serial;
};
#if defined(CONFIG_DVB_MB86A20S) || (defined(CONFIG_DVB_MB86A20S_MODULE) \

1
drivers/media/video/cx231xx/cx231xx-dvb.c
View File

@ -143,6 +143,7 @@ static struct tda18271_config hcw_tda18271_config = {
static const struct mb86a20s_config pv_mb86a20s_config = {
.demod_address = 0x10,
.is_serial = true,
};
static struct tda18271_config pv_tda18271_config = {