int Si4709_dev_chan_select(u32 frequency)
{
int ret = 0;
debug("Si4709_dev_chan_select called");
if (Si4709_dev.valid == eFALSE) {
debug("Si4709_dev_chan_select called when DS is invalid");
ret = -1;
} else {
Si4709_dev.state.seek_state = RADIO_SEEK_ON;
ret = tune_freq(frequency);
debug("Si4709_dev_chan_select called1");
Si4709_dev.state.seek_state = RADIO_SEEK_OFF;
}
return ret;
}
int Si47xx_dev_powerup(void)
{
int ret = 0;
u32 value = 100;
debug("Si47xx_dev_powerup called");
if (!(RADIO_ON == Si47xx_dev->state.power_state)) {
ret = powerup();
if (ret < 0) {
dev_err(Si47xx_dev->dev, "%s failed %d\n",
__func__, ret);
} else if (Si47xx_dev->valid_client_state == eFALSE) {
dev_err(Si47xx_dev->dev, "Si47xx_dev_powerup called "
"when DS(state, client) is invalid");
ret = -1;
} else {
/* initial settings */
#ifdef CONFIG_RADIO_USE_MI2S
si47xx_set_property(DIGITAL_OUTPUT_SAMPLE_RATE, 0xBB80); //44100
si47xx_set_property(DIGITAL_OUTPUT_FORMAT, 0x0000); //I2S, 16bit, Riging edge
#endif
#ifdef _ENABLE_RDS_
si47xx_set_property(FM_RDS_CONFIG, 1);
si47xx_set_property(GPO_IEN, GPO_IEN_STCIEN_MASK |
GPO_IEN_STCREP_MASK);
si47xx_set_property(GPO_IEN, GPO_IEN_STCIEN_MASK |
GPO_IEN_RDSIEN_MASK | GPO_IEN_STCREP_MASK);
si47xx_set_property(FM_RDS_INTERRUPT_SOURCE,
FM_RDS_INTERRUPT_SOURCE_RECV_MASK);
si47xx_set_property(FM_RDS_CONFIG,
FM_RDS_CONFIG_RDSEN_MASK |
(3 << FM_RDS_CONFIG_BLETHA_SHFT) |
(3 << FM_RDS_CONFIG_BLETHB_SHFT) |
(3 << FM_RDS_CONFIG_BLETHC_SHFT) |
(3 << FM_RDS_CONFIG_BLETHD_SHFT));
#endif
/*VNVS:18-NOV'09 : Setting DE-Time Constant as 50us(Europe,Japan,Australia)*/
si47xx_set_property(FM_DEEMPHASIS, FM_DEEMPH_50US);
/* SYSCONFIG2_BITSET_SEEKTH( */
/* &Si47xx_dev->registers[SYSCONFIG2],2); */
/*VNVS:18-NOV'09 : modified for detecting more stations of good quality*/
si47xx_set_property(FM_SEEK_TUNE_RSSI_THRESHOLD,
TUNE_RSSI_THRESHOLD);
si47xx_set_property(FM_SEEK_BAND_BOTTOM, 8750);
si47xx_set_property(FM_SEEK_BAND_TOP, 10800);
Si47xx_dev->settings.band = BAND_87500_108000_kHz;
Si47xx_dev->settings.bottom_of_band = FREQ_87500_kHz;
si47xx_set_property(FM_SEEK_FREQ_SPACING,
CHAN_SPACING_100_kHz);
Si47xx_dev->settings.channel_spacing =
CHAN_SPACING_100_kHz;
/* SYSCONFIG3_BITSET_SKSNR( */
/* &Si47xx_dev->registers[SYSCONFIG3],3); */
/*VNVS:18-NOV'09 : modified for detecting more stations of good quality*/
si47xx_set_property(FM_SEEK_TUNE_SNR_THRESHOLD,
TUNE_SNR_THRESHOLD);
Si47xx_dev->settings.timeout_RDS =
msecs_to_jiffies(value);
Si47xx_dev->settings.curr_snr = TUNE_SNR_THRESHOLD;
Si47xx_dev->settings.curr_rssi_th = TUNE_RSSI_THRESHOLD;
Si47xx_dev->valid = eTRUE;
Si47xx_dev_STEREO_SET();
#ifdef RDS_INTERRUPT_ON_ALWAYS
/*Initialising read and write indices */
RDS_Buffer_Index_read = 0;
RDS_Buffer_Index_write = 0;
RDS_Data_Available = 0;
RDS_Data_Lost = 0;
RDS_Groups_Available_till_now = 0;
#endif
}
} else
debug("Device already Powered-ON");
ret = request_irq(si47xx_irq, Si47xx_isr,
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "Si47xx", NULL);
si47xx_set_property(0xff00, 0);
/* tune initial frequency to remove tunestatus func err
* sometimes occur tunestatus func err when execute tunestatus function
* before to complete tune_freq.
* so run tune_freq just after to complete booting sequence*/
ret = tune_freq(Si47xx_dev->settings.bottom_of_band);
return ret;
}