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);
}
void rf_path_init(void) {
ssp1_set_mode_max5864();
max5864_shutdown();
ssp1_set_mode_max2837();
max2837_setup();
max2837_start();
rffc5071_setup();
switchctrl_set(switchctrl);
}
void rf_path_init(rf_path_t* const rf_path) {
ssp1_set_mode_max5864();
max5864_setup(&max5864);
max5864_shutdown(&max5864);
ssp1_set_mode_max2837();
max2837_setup(&max2837);
max2837_start(&max2837);
rffc5071_setup(&rffc5072);
switchctrl_set(rf_path, switchctrl);
}