blob: 6247838738ebc59eff61a2964cdfae49398a8737 [file] [log] [blame]
/*
* Copyright (c) 2023 Antmicro <www.antmicro.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/drivers/pinctrl.h>
/* ambiq-sdk includes */
#include <am_mcu_apollo.h>
static void pinctrl_configure_pin(const pinctrl_soc_pin_t *pin)
{
am_hal_gpio_pincfg_t pin_config = {0};
pin_config.GP.cfg_b.uFuncSel = pin->alt_func;
pin_config.GP.cfg_b.eGPInput = pin->input_enable ? AM_HAL_GPIO_PIN_INPUT_ENABLE
: AM_HAL_GPIO_PIN_INPUT_NONE;
pin_config.GP.cfg_b.eGPOutCfg = pin->push_pull ? AM_HAL_GPIO_PIN_OUTCFG_PUSHPULL
: pin->open_drain ? AM_HAL_GPIO_PIN_OUTCFG_OPENDRAIN
: pin->tristate ? AM_HAL_GPIO_PIN_OUTCFG_TRISTATE
: AM_HAL_GPIO_PIN_OUTCFG_DISABLE;
pin_config.GP.cfg_b.eDriveStrength = pin->drive_strength;
pin_config.GP.cfg_b.uSlewRate = pin->slew_rate;
pin_config.GP.cfg_b.uNCE = pin->iom_nce;
if (pin->bias_pull_up) {
pin_config.GP.cfg_b.ePullup = pin->ambiq_pull_up_ohms + AM_HAL_GPIO_PIN_PULLUP_1_5K;
} else if (pin->bias_pull_down) {
pin_config.GP.cfg_b.ePullup = AM_HAL_GPIO_PIN_PULLDOWN_50K;
}
am_hal_gpio_pinconfig(pin->pin_num, pin_config);
}
int pinctrl_configure_pins(const pinctrl_soc_pin_t *pins, uint8_t pin_cnt, uintptr_t reg)
{
ARG_UNUSED(reg);
for (uint8_t i = 0U; i < pin_cnt; i++) {
pinctrl_configure_pin(pins++);
}
return 0;
}