57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/*
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* Copyright (c) 2022, Renesas Electronics Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/drivers/pinctrl.h>
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#include <DA1469xAB.h>
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/** Utility macro to retrieve starting mode register and pin count for GPIO port from DT */
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#define GPIO_PORT_ENTRY(nodelabel) \
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{ DT_REG_ADDR_BY_IDX(DT_NODELABEL(nodelabel), 1), \
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DT_PROP(DT_NODELABEL(nodelabel), ngpios) }
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struct gpio_port {
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uint32_t p0_mode_addr;
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uint8_t pin_count;
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};
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static const struct gpio_port smartbond_gpio_ports[] = {
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GPIO_PORT_ENTRY(gpio0),
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GPIO_PORT_ENTRY(gpio1),
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};
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static void pinctrl_configure_pin(const pinctrl_soc_pin_t *pin)
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{
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volatile uint32_t *reg;
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uint32_t reg_val;
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__ASSERT_NO_MSG(pin->port < ARRAY_SIZE(smartbond_gpio_ports));
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__ASSERT_NO_MSG(pin->pin < smartbond_gpio_ports[pin->port].pin_count);
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reg = (volatile uint32_t *)smartbond_gpio_ports[pin->port].p0_mode_addr;
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reg += pin->pin;
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reg_val = pin->func << GPIO_P0_00_MODE_REG_PID_Pos;
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if (pin->bias_pull_up) {
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reg_val |= 0x01 << GPIO_P0_00_MODE_REG_PUPD_Pos;
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} else if (pin->bias_pull_down) {
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reg_val |= 0x02 << GPIO_P0_00_MODE_REG_PUPD_Pos;
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}
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*reg = reg_val;
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}
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int pinctrl_configure_pins(const pinctrl_soc_pin_t *pins, uint8_t pin_cnt,
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uintptr_t reg)
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{
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ARG_UNUSED(reg);
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for (uint8_t i = 0U; i < pin_cnt; i++) {
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pinctrl_configure_pin(pins++);
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}
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return 0;
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}
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