void rf_path_set_direction(const rf_path_direction_t direction) { /* Turn off TX and RX amplifiers, then enable based on direction and bypass state. */ switchctrl |= SWITCHCTRL_NO_TX_AMP_PWR | SWITCHCTRL_NO_RX_AMP_PWR; switch(direction) { case RF_PATH_DIRECTION_TX: switchctrl |= SWITCHCTRL_TX; if( (switchctrl & SWITCHCTRL_AMP_BYPASS) == 0 ) { /* TX amplifier is in path, be sure to enable TX amplifier. */ switchctrl &= ~SWITCHCTRL_NO_TX_AMP_PWR; } rffc5071_tx(); if( switchctrl & SWITCHCTRL_MIX_BYPASS ) { rffc5071_disable(); } else { rffc5071_enable(); } ssp1_set_mode_max5864(); max5864_tx(); ssp1_set_mode_max2837(); max2837_tx(); sgpio_configure(SGPIO_DIRECTION_TX); break; case RF_PATH_DIRECTION_RX: switchctrl &= ~SWITCHCTRL_TX; if( (switchctrl & SWITCHCTRL_AMP_BYPASS) == 0 ) { /* RX amplifier is in path, be sure to enable RX amplifier. */ switchctrl &= ~SWITCHCTRL_NO_RX_AMP_PWR; } rffc5071_rx(); if( switchctrl & SWITCHCTRL_MIX_BYPASS ) { rffc5071_disable(); } else { rffc5071_enable(); } ssp1_set_mode_max5864(); max5864_rx(); ssp1_set_mode_max2837(); max2837_rx(); sgpio_configure(SGPIO_DIRECTION_RX); break; case RF_PATH_DIRECTION_OFF: default: #ifdef HACKRF_ONE rf_path_set_antenna(0); #endif /* Set RF path to receive direction when "off" */ switchctrl &= ~SWITCHCTRL_TX; rffc5071_disable(); ssp1_set_mode_max5864(); max5864_standby(); ssp1_set_mode_max2837(); max2837_set_mode(MAX2837_MODE_STANDBY); sgpio_configure(SGPIO_DIRECTION_RX); break; } switchctrl_set(switchctrl); }
/* * 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; }