/* tuner abstraction layer: set something to the tuner */
int si4700_set(int setting, int value)
{
int val = 1;
if(!tuner_powered() && setting != RADIO_SLEEP)
return -1;
mutex_lock(&fmr_mutex);
switch(setting)
{
case RADIO_SLEEP:
if (value != 2)
si4700_sleep(value);
/* else actually it's 'pause' */
break;
case RADIO_FREQUENCY:
#ifdef HAVE_RDS_CAP
rds_reset();
#endif
si4700_set_frequency(value);
break;
case RADIO_SCAN_FREQUENCY:
#ifdef HAVE_RDS_CAP
rds_reset();
#endif
si4700_set_frequency(value);
val = si4700_tuned();
break;
case RADIO_MUTE:
si4700_write_masked(POWERCFG, value ? 0 : POWERCFG_DMUTE,
POWERCFG_DMUTE);
break;
case RADIO_REGION:
si4700_set_region(value);
break;
case RADIO_FORCE_MONO:
si4700_write_masked(POWERCFG, value ? POWERCFG_MONO : 0,
POWERCFG_MONO);
break;
default:
val = -1;
break;
}
mutex_unlock(&fmr_mutex);
return val;
}
void si4700_init(void)
{
/* check device id */
if (si4700_detect()) {
tuner_present = true;
tuner_power(true);
/* read all registers */
si4700_read(16);
si4700_sleep(0);
#ifdef USE_INTERNAL_OSCILLATOR
/* Enable the internal oscillator
(Si4702-16 needs this register to be initialised to 0x100) */
si4700_write_set(TEST1, TEST1_XOSCEN | 0x100);
sleep(HZ/2);
#endif
si4700_sleep(1);
tuner_power(false);
}
}
/* tuner abstraction layer: set something to the tuner */
int si4700_set(int setting, int value)
{
switch(setting)
{
case RADIO_SLEEP:
if (value != 2)
si4700_sleep(value);
/* else actually it's 'pause' */
break;
case RADIO_FREQUENCY:
si4700_set_frequency(value);
break;
case RADIO_SCAN_FREQUENCY:
si4700_set_frequency(value);
return si4700_tuned();
case RADIO_MUTE:
si4700_write_masked(POWERCFG, value ? 0 : POWERCFG_DMUTE,
POWERCFG_DMUTE);
break;
case RADIO_REGION:
si4700_set_region(value);
break;
case RADIO_FORCE_MONO:
si4700_write_masked(POWERCFG, value ? POWERCFG_MONO : 0,
POWERCFG_MONO);
break;
default:
return -1;
}
return 1;
}
