/*
 * Copyright (c) 2018 AJ Palmer
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <kernel.h>
#include <device.h>
#include <init.h>
#include <drivers/pinmux.h>
#include <sys/sys_io.h>

#include <pinmux/stm32/pinmux_stm32.h>

/* NUCLEO-F746ZG pin configurations
 *
 * WARNING: The pin PA7 will conflict on selection of SPI_1 and ETH_STM32_HAL.
 *          If you require both peripherals, and you do not need Arduino Uno v3
 *          comaptability, the pin PB5 (also on ST Zio connector) can be used
 *          for the SPI_1 MOSI signal.
 */
static const struct pin_config pinconf[] = {
#if DT_NODE_HAS_STATUS(DT_NODELABEL(usart2), okay) && CONFIG_SERIAL
	{ STM32_PIN_PD5, STM32F7_PINMUX_FUNC_PD5_USART2_TX },
	{ STM32_PIN_PD6, STM32F7_PINMUX_FUNC_PD6_USART2_RX },
	{ STM32_PIN_PD4, STM32F7_PINMUX_FUNC_PD4_USART2_RTS },
	{ STM32_PIN_PD3, STM32F7_PINMUX_FUNC_PD3_USART2_CTS },
#endif
#if DT_NODE_HAS_STATUS(DT_NODELABEL(usart3), okay) && CONFIG_SERIAL
	{ STM32_PIN_PD8, STM32F7_PINMUX_FUNC_PD8_USART3_TX },
	{ STM32_PIN_PD9, STM32F7_PINMUX_FUNC_PD9_USART3_RX },
#endif
#if DT_NODE_HAS_STATUS(DT_NODELABEL(usart6), okay) && CONFIG_SERIAL
	{ STM32_PIN_PG14, STM32F7_PINMUX_FUNC_PG14_USART6_TX },
	{ STM32_PIN_PG9, STM32F7_PINMUX_FUNC_PG9_USART6_RX },
#endif
#ifdef CONFIG_ETH_STM32_HAL
	{ STM32_PIN_PC1, STM32F7_PINMUX_FUNC_PC1_ETH },
	{ STM32_PIN_PC4, STM32F7_PINMUX_FUNC_PC4_ETH },
	{ STM32_PIN_PC5, STM32F7_PINMUX_FUNC_PC5_ETH },
	{ STM32_PIN_PA1, STM32F7_PINMUX_FUNC_PA1_ETH },
	{ STM32_PIN_PA2, STM32F7_PINMUX_FUNC_PA2_ETH },
	{ STM32_PIN_PA7, STM32F7_PINMUX_FUNC_PA7_ETH },
	{ STM32_PIN_PG11, STM32F7_PINMUX_FUNC_PG11_ETH },
	{ STM32_PIN_PG13, STM32F7_PINMUX_FUNC_PG13_ETH },
	{ STM32_PIN_PB13, STM32F7_PINMUX_FUNC_PB13_ETH },
#endif  /* CONFIG_ETH_STM32_HAL */
#ifdef CONFIG_USB_DC_STM32
	{ STM32_PIN_PA11, STM32F7_PINMUX_FUNC_PA11_OTG_FS_DM },
	{ STM32_PIN_PA12, STM32F7_PINMUX_FUNC_PA12_OTG_FS_DP },
#endif	/* CONFIG_USB_DC_STM32 */
#if DT_NODE_HAS_STATUS(DT_NODELABEL(i2c1), okay) && CONFIG_I2C
	{ STM32_PIN_PB8, STM32F7_PINMUX_FUNC_PB8_I2C1_SCL },
	{ STM32_PIN_PB9, STM32F7_PINMUX_FUNC_PB9_I2C1_SDA },
#endif
#if DT_NODE_HAS_STATUS(DT_NODELABEL(pwm1), okay) && CONFIG_PWM
	{ STM32_PIN_PE13, STM32F7_PINMUX_FUNC_PE13_PWM1_CH3 },
#endif
#if DT_NODE_HAS_STATUS(DT_NODELABEL(spi1), okay) && CONFIG_SPI
#ifdef CONFIG_SPI_STM32_USE_HW_SS
	{ STM32_PIN_PA4, STM32F7_PINMUX_FUNC_PA4_SPI1_NSS },
#endif /* CONFIG_SPI_STM32_USE_HW_SS */
	{ STM32_PIN_PA5, STM32F7_PINMUX_FUNC_PA5_SPI1_SCK },
	{ STM32_PIN_PA6, STM32F7_PINMUX_FUNC_PA6_SPI1_MISO },
	{ STM32_PIN_PA7, STM32F7_PINMUX_FUNC_PA7_SPI1_MOSI },
#endif
#if DT_NODE_HAS_STATUS(DT_NODELABEL(can1), okay) && CONFIG_CAN
	{STM32_PIN_PD0, STM32F7_PINMUX_FUNC_PD0_CAN_RX},
	{STM32_PIN_PD1, STM32F7_PINMUX_FUNC_PD1_CAN_TX},
#endif
#if DT_NODE_HAS_STATUS(DT_NODELABEL(adc1), okay) && CONFIG_ADC
	{ STM32_PIN_PA0, STM32F7_PINMUX_FUNC_PA0_ADC123_IN0 },
#endif
};

static int pinmux_stm32_init(struct device *port)
{
	ARG_UNUSED(port);

	stm32_setup_pins(pinconf, ARRAY_SIZE(pinconf));

	return 0;
}

SYS_INIT(pinmux_stm32_init, PRE_KERNEL_1,
	 CONFIG_PINMUX_STM32_DEVICE_INITIALIZATION_PRIORITY);