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V4L/DVB (11583): isl6423: Various fixes to use external modulation 

Use external modulation

Signed-off-by: Andreas Regel <andreas.regel@gmx.de>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andreas Regel 2009-04-07 16:09:52 -03:00 committed by Mauro Carvalho Chehab
parent 5657150759
commit 54d859ec56
2 changed files with 26 additions and 10 deletions
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35
drivers/media/dvb/frontends/isl6423.c
View File

@ -73,6 +73,7 @@ static int isl6423_write(struct isl6423_dev *isl6423, u8 reg)
struct i2c_msg msg = { .addr = addr, .flags = 0, .buf = &reg, .len = 1 };
dprintk(FE_DEBUG, 1, "write reg %02X", reg);
err = i2c_transfer(i2c, &msg, 1);
if (err < 0)
goto exit;
@ -133,6 +134,9 @@ static int isl6423_voltage_boost(struct dvb_frontend *fe, long arg)
if (err < 0)
goto exit;
isl6423->reg_3 = reg_3;
isl6423->reg_4 = reg_4;
return 0;
exit:
dprintk(FE_ERROR, 1, "I/O error <%d>", err);
@ -144,12 +148,10 @@ static int isl6423_set_voltage(struct dvb_frontend *fe,
enum fe_sec_voltage voltage)
{
struct isl6423_dev *isl6423 = (struct isl6423_dev *) fe->sec_priv;
u8 reg_3 = isl6423->reg_3;
u8 reg_4 = isl6423->reg_4;
int err = 0;
/* SR4H = 0, SR4M = 1, SR4L = 1 */
reg_4 = 0x03 << 5;
switch (voltage) {
case SEC_VOLTAGE_OFF:
/* EN = 0 */
@ -160,6 +162,7 @@ static int isl6423_set_voltage(struct dvb_frontend *fe,
/* EN = 1, VSPEN = 1, VTOP = 0, VBOT = 0 */
reg_4 |= (1 << 4);
reg_4 &= ~0x3;
reg_3 |= (1 << 3);
break;
case SEC_VOLTAGE_18:
@ -167,15 +170,23 @@ static int isl6423_set_voltage(struct dvb_frontend *fe,
reg_4 |= (1 << 4);
reg_4 |= 0x2;
reg_4 &= ~0x1;
reg_3 |= (1 << 3);
break;
default:
break;
}
err = isl6423_write(isl6423, reg_3);
if (err < 0)
goto exit;
err = isl6423_write(isl6423, reg_4);
if (err < 0)
goto exit;
isl6423->reg_3 = reg_3;
isl6423->reg_4 = reg_4;
return 0;
exit:
dprintk(FE_ERROR, 1, "I/O error <%d>", err);
@ -189,9 +200,6 @@ static int isl6423_set_current(struct dvb_frontend *fe)
const struct isl6423_config *config = isl6423->config;
int err = 0;
/* SR3H = 0, SR3M = 1, SR3L = 0 */
reg_3 = 0x02 << 5;
switch (config->current_max) {
case SEC_CURRENT_275m:
/* 275mA */
@ -226,13 +234,13 @@ static int isl6423_set_current(struct dvb_frontend *fe)
switch (config->curlim) {
case SEC_CURRENT_LIM_ON:
/* DCL = 1 */
reg_3 |= 0x10;
/* DCL = 0 */
reg_3 &= ~0x10;
break;
case SEC_CURRENT_LIM_OFF:
/* DCL = 0 */
reg_3 &= ~0x10;
/* DCL = 1 */
reg_3 |= 0x10;
break;
}
@ -240,6 +248,8 @@ static int isl6423_set_current(struct dvb_frontend *fe)
if (err < 0)
goto exit;
isl6423->reg_3 = reg_3;
return 0;
exit:
dprintk(FE_ERROR, 1, "I/O error <%d>", err);
@ -268,6 +278,11 @@ struct dvb_frontend *isl6423_attach(struct dvb_frontend *fe,
isl6423->i2c = i2c;
fe->sec_priv = isl6423;
/* SR3H = 0, SR3M = 1, SR3L = 0 */
isl6423->reg_3 = 0x02 << 5;
/* SR4H = 0, SR4M = 1, SR4L = 1 */
isl6423->reg_4 = 0x03 << 5;
if (isl6423_set_current(fe))
goto exit;

1
drivers/media/dvb/ttpci/budget-ci.c
View File

@ -1383,6 +1383,7 @@ static struct stv6110x_config tt1600_stv6110x_config = {
static struct isl6423_config tt1600_isl6423_config = {
.current_max = SEC_CURRENT_515m,
.curlim = SEC_CURRENT_LIM_ON,
.mod_extern = 1,
.addr = 0x08,
};