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V4L/DVB (3859): Convert s5h1420 to refactored tuner code 

Convert to tuner_ops calls.
Remove pll function pointers from structure.
Remove unneeded tuner calls.
Add i2c gate control function.

Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Andrew de Quincey 2006-04-18 17:47:10 -03:00 committed by Mauro Carvalho Chehab
parent 74349bef1a
commit a98af2246b
2 changed files with 25 additions and 18 deletions
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39
drivers/media/dvb/frontends/s5h1420.c
View File

@ -584,7 +584,6 @@ static int s5h1420_set_frontend(struct dvb_frontend* fe,
struct s5h1420_state* state = fe->demodulator_priv;
int frequency_delta;
struct dvb_frontend_tune_settings fesettings;
u32 tmp;
/* check if we should do a fast-tune */
memcpy(&fesettings.parameters, p, sizeof(struct dvb_frontend_parameters));
@ -596,10 +595,17 @@ static int s5h1420_set_frontend(struct dvb_frontend* fe,
(state->fec_inner == p->u.qpsk.fec_inner) &&
(state->symbol_rate == p->u.qpsk.symbol_rate)) {
if (state->config->pll_set) {
s5h1420_writereg (state, 0x02, s5h1420_readreg(state,0x02) | 1);
state->config->pll_set(fe, p, &tmp);
if (fe->ops->tuner_ops.set_params) {
fe->ops->tuner_ops.set_params(fe, p);
if (fe->ops->i2c_gate_ctrl) fe->ops->i2c_gate_ctrl(fe, 0);
}
if (fe->ops->tuner_ops.get_frequency) {
u32 tmp;
fe->ops->tuner_ops.get_frequency(fe, &tmp);
if (fe->ops->i2c_gate_ctrl) fe->ops->i2c_gate_ctrl(fe, 0);
s5h1420_setfreqoffset(state, p->frequency - tmp);
} else {
s5h1420_setfreqoffset(state, 0);
}
return 0;
}
@ -646,9 +652,9 @@ static int s5h1420_set_frontend(struct dvb_frontend* fe,
s5h1420_writereg(state, 0x05, s5h1420_readreg(state, 0x05) | 1);
/* set tuner PLL */
if (state->config->pll_set) {
s5h1420_writereg (state, 0x02, s5h1420_readreg(state,0x02) | 1);
state->config->pll_set(fe, p, &tmp);
if (fe->ops->tuner_ops.set_params) {
fe->ops->tuner_ops.set_params(fe, p);
if (fe->ops->i2c_gate_ctrl) fe->ops->i2c_gate_ctrl(fe, 0);
s5h1420_setfreqoffset(state, 0);
}
@ -708,6 +714,17 @@ static int s5h1420_get_tune_settings(struct dvb_frontend* fe,
return 0;
}
static int s5h1420_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
{
struct s5h1420_state* state = fe->demodulator_priv;
if (enable) {
return s5h1420_writereg (state, 0x02, s5h1420_readreg(state,0x02) | 1);
} else {
return s5h1420_writereg (state, 0x02, s5h1420_readreg(state,0x02) & 0xfe);
}
}
static int s5h1420_init (struct dvb_frontend* fe)
{
struct s5h1420_state* state = fe->demodulator_priv;
@ -717,13 +734,6 @@ static int s5h1420_init (struct dvb_frontend* fe)
msleep(10);
s5h1420_reset(state);
/* init PLL */
if (state->config->pll_init) {
s5h1420_writereg (state, 0x02, s5h1420_readreg(state,0x02) | 1);
state->config->pll_init(fe);
s5h1420_writereg (state, 0x02, s5h1420_readreg(state,0x02) & 0xfe);
}
return 0;
}
@ -800,6 +810,7 @@ static struct dvb_frontend_ops s5h1420_ops = {
.init = s5h1420_init,
.sleep = s5h1420_sleep,
.i2c_gate_ctrl = s5h1420_i2c_gate_ctrl,
.set_frontend = s5h1420_set_frontend,
.get_frontend = s5h1420_get_frontend,

4
drivers/media/dvb/frontends/s5h1420.h
View File

@ -32,10 +32,6 @@ struct s5h1420_config
/* does the inversion require inversion? */
u8 invert:1;
/* PLL maintenance */
int (*pll_init)(struct dvb_frontend* fe);
int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u32* freqout);
};
extern struct dvb_frontend* s5h1420_attach(const struct s5h1420_config* config,