void rf_path_pin_setup() {
#ifdef HACKRF_ONE
/* Configure RF switch control signals */
scu_pinmux(SCU_HP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_LP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_TX_MIX_BP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_NO_MIX_BYPASS, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_RX_MIX_BP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_TX_AMP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_TX, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
scu_pinmux(SCU_MIX_BYPASS, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
scu_pinmux(SCU_RX, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
scu_pinmux(SCU_NO_TX_AMP_PWR, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_AMP_BYPASS, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_RX_AMP, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_NO_RX_AMP_PWR, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
/* Configure RF power supply (VAA) switch */
scu_pinmux(SCU_NO_VAA_ENABLE, SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
/* Configure RF switch control signals as outputs */
GPIO0_DIR |= PIN_AMP_BYPASS;
GPIO1_DIR |= (PIN_NO_MIX_BYPASS | PIN_RX_AMP | PIN_NO_RX_AMP_PWR);
GPIO2_DIR |= (PIN_HP | PIN_LP | PIN_TX_MIX_BP | PIN_RX_MIX_BP | PIN_TX_AMP);
GPIO3_DIR |= PIN_NO_TX_AMP_PWR;
GPIO5_DIR |= (PIN_TX | PIN_MIX_BYPASS | PIN_RX);
/*
* Safe (initial) switch settings turn off both amplifiers and antenna port
* power and enable both amp bypass and mixer bypass.
*/
switchctrl_set(SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_MIX_BYPASS);
/* Configure RF power supply (VAA) switch control signal as output */
GPIO_DIR(PORT_NO_VAA_ENABLE) |= PIN_NO_VAA_ENABLE;
/* Safe state: start with VAA turned off: */
disable_rf_power();
#endif
}
void pin_setup(void) {
/* Release CPLD JTAG pins */
scu_pinmux(SCU_PINMUX_CPLD_TDO, SCU_GPIO_NOPULL | SCU_CONF_FUNCTION4);
scu_pinmux(SCU_PINMUX_CPLD_TCK, SCU_GPIO_NOPULL | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_PINMUX_CPLD_TMS, SCU_GPIO_NOPULL | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_PINMUX_CPLD_TDI, SCU_GPIO_NOPULL | SCU_CONF_FUNCTION0);
gpio_input(&gpio_cpld_tdo);
gpio_input(&gpio_cpld_tck);
gpio_input(&gpio_cpld_tms);
gpio_input(&gpio_cpld_tdi);
/* Configure SCU Pin Mux as GPIO */
scu_pinmux(SCU_PINMUX_LED1, SCU_GPIO_NOPULL);
scu_pinmux(SCU_PINMUX_LED2, SCU_GPIO_NOPULL);
scu_pinmux(SCU_PINMUX_LED3, SCU_GPIO_NOPULL);
#ifdef RAD1O
scu_pinmux(SCU_PINMUX_LED4, SCU_GPIO_NOPULL | SCU_CONF_FUNCTION4);
#endif
scu_pinmux(SCU_PINMUX_EN1V8, SCU_GPIO_NOPULL);
/* Configure USB indicators */
#ifdef JAWBREAKER
scu_pinmux(SCU_PINMUX_USB_LED0, SCU_CONF_FUNCTION3);
scu_pinmux(SCU_PINMUX_USB_LED1, SCU_CONF_FUNCTION3);
#endif
/* Configure all GPIO as Input (safe state) */
gpio_init();
gpio_output(&gpio_led[0]);
gpio_output(&gpio_led[1]);
gpio_output(&gpio_led[2]);
#ifdef RAD1O
gpio_output(&gpio_led[3]);
#endif
gpio_output(&gpio_1v8_enable);
#ifdef HACKRF_ONE
/* Configure RF power supply (VAA) switch control signal as output */
gpio_output(&gpio_vaa_disable);
/* Safe state: start with VAA turned off: */
disable_rf_power();
scu_pinmux(SCU_PINMUX_GPIO3_10, SCU_GPIO_PDN | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_PINMUX_GPIO3_11, SCU_GPIO_PDN | SCU_CONF_FUNCTION0);
#endif
#ifdef RAD1O
/* Configure RF power supply (VAA) switch control signal as output */
gpio_output(&gpio_vaa_enable);
/* Safe state: start with VAA turned off: */
disable_rf_power();
scu_pinmux(SCU_PINMUX_GPIO3_10, SCU_GPIO_PDN | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_PINMUX_GPIO3_11, SCU_GPIO_PDN | SCU_CONF_FUNCTION0);
#endif
/* enable input on SCL and SDA pins */
SCU_SFSI2C0 = SCU_I2C0_NOMINAL;
spi_bus_start(&spi_bus_ssp1, &ssp_config_max2837);
mixer_bus_setup(&mixer);
rf_path_pin_setup(&rf_path);
/* Configure external clock in */
scu_pinmux(SCU_PINMUX_GP_CLKIN, SCU_CLK_IN | SCU_CONF_FUNCTION1);
sgpio_configure_pin_functions(&sgpio_config);
}
