static void rad1o_ui_set_frequency(uint64_t frequency) {
hackrf_ui_setFrequency(frequency);
}
/*
* Set freq/tuning between 0MHz to 7250 MHz (less than 16bits really used)
* hz between 0 to 999999 Hz (not checked)
* return false on error or true if success.
*/
bool set_freq(const uint64_t freq)
{
bool success;
uint32_t mixer_freq_mhz;
uint32_t MAX2837_freq_hz;
uint64_t real_mixer_freq_hz;
const uint32_t freq_mhz = freq / 1000000;
const uint32_t freq_hz = freq % 1000000;
success = true;
const max2837_mode_t prior_max2837_mode = max2837_mode(&max2837);
max2837_set_mode(&max2837, MAX2837_MODE_STANDBY);
if(freq_mhz < MAX_LP_FREQ_MHZ)
{
rf_path_set_filter(&rf_path, RF_PATH_FILTER_LOW_PASS);
#ifdef RAD1O
max2837_freq_nominal_hz = 2300000000;
#else
/* IF is graduated from 2650 MHz to 2343 MHz */
max2837_freq_nominal_hz = 2650000000 - (freq / 7);
#endif
mixer_freq_mhz = (max2837_freq_nominal_hz / FREQ_ONE_MHZ) + freq_mhz;
/* Set Freq and read real freq */
real_mixer_freq_hz = mixer_set_frequency(&mixer, mixer_freq_mhz);
max2837_set_frequency(&max2837, real_mixer_freq_hz - freq);
sgpio_cpld_stream_rx_set_q_invert(&sgpio_config, 1);
}else if( (freq_mhz >= MIN_BYPASS_FREQ_MHZ) && (freq_mhz < MAX_BYPASS_FREQ_MHZ) )
{
rf_path_set_filter(&rf_path, RF_PATH_FILTER_BYPASS);
MAX2837_freq_hz = (freq_mhz * FREQ_ONE_MHZ) + freq_hz;
/* mixer_freq_mhz <= not used in Bypass mode */
max2837_set_frequency(&max2837, MAX2837_freq_hz);
sgpio_cpld_stream_rx_set_q_invert(&sgpio_config, 0);
}else if( (freq_mhz >= MIN_HP_FREQ_MHZ) && (freq_mhz <= MAX_HP_FREQ_MHZ) )
{
if (freq_mhz < MID1_HP_FREQ_MHZ) {
/* IF is graduated from 2150 MHz to 2750 MHz */
max2837_freq_nominal_hz = 2150000000 + (((freq - 2750000000) * 60) / 85);
} else if (freq_mhz < MID2_HP_FREQ_MHZ) {
/* IF is graduated from 2350 MHz to 2650 MHz */
max2837_freq_nominal_hz = 2350000000 + ((freq - 3600000000) / 5);
} else {
/* IF is graduated from 2500 MHz to 2738 MHz */
max2837_freq_nominal_hz = 2500000000 + ((freq - 5100000000) / 9);
}
rf_path_set_filter(&rf_path, RF_PATH_FILTER_HIGH_PASS);
mixer_freq_mhz = freq_mhz - (max2837_freq_nominal_hz / FREQ_ONE_MHZ);
/* Set Freq and read real freq */
real_mixer_freq_hz = mixer_set_frequency(&mixer, mixer_freq_mhz);
max2837_set_frequency(&max2837, freq - real_mixer_freq_hz);
sgpio_cpld_stream_rx_set_q_invert(&sgpio_config, 0);
}else
{
/* Error freq_mhz too high */
success = false;
}
max2837_set_mode(&max2837, prior_max2837_mode);
if( success ) {
freq_cache = freq;
hackrf_ui_setFrequency(freq);
}
return success;
}
