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/*
* Copyright (c) 2016 Open-RnD Sp. z o.o.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <errno.h>
#include "soc.h"
#include <device.h>
#include <misc/util.h>
#include <pinmux/stm32/pinmux_stm32.h>
#include <drivers/clock_control/stm32_clock_control.h>
static const stm32_pin_func_t pin_pa9_funcs[] = {
[STM32F1_PINMUX_FUNC_PA9_USART1_TX - 1] =
STM32F10X_PIN_CONFIG_AF_PUSH_PULL,
};
static const stm32_pin_func_t pin_pa10_funcs[] = {
[STM32F1_PINMUX_FUNC_PA10_USART1_RX - 1] =
STM32F10X_PIN_CONFIG_BIAS_HIGH_IMPEDANCE,
};
static const stm32_pin_func_t pin_pa2_funcs[] = {
[STM32F1_PINMUX_FUNC_PA2_USART2_TX - 1] =
STM32F10X_PIN_CONFIG_AF_PUSH_PULL,
};
static const stm32_pin_func_t pin_pa3_funcs[] = {
[STM32F1_PINMUX_FUNC_PA3_USART2_RX - 1] =
STM32F10X_PIN_CONFIG_BIAS_HIGH_IMPEDANCE,
};
static const stm32_pin_func_t pin_pb10_funcs[] = {
[STM32F1_PINMUX_FUNC_PB10_USART3_TX - 1] =
STM32F10X_PIN_CONFIG_AF_PUSH_PULL,
};
static const stm32_pin_func_t pin_pb11_funcs[] = {
[STM32F1_PINMUX_FUNC_PB11_USART3_RX - 1] =
STM32F10X_PIN_CONFIG_BIAS_HIGH_IMPEDANCE,
};
static const stm32_pin_func_t pin_pa8_funcs[] = {
[STM32F1_PINMUX_FUNC_PA8_PWM1_CH1 - 1] =
STM32F10X_PIN_CONFIG_AF_PUSH_PULL,
};
/**
* @brief pin configuration
*/
static struct stm32_pinmux_conf pins[] = {
STM32_PIN_CONF(STM32_PIN_PA2, pin_pa2_funcs),
STM32_PIN_CONF(STM32_PIN_PA3, pin_pa3_funcs),
STM32_PIN_CONF(STM32_PIN_PA8, pin_pa8_funcs),
STM32_PIN_CONF(STM32_PIN_PA9, pin_pa9_funcs),
STM32_PIN_CONF(STM32_PIN_PA10, pin_pa10_funcs),
STM32_PIN_CONF(STM32_PIN_PB10, pin_pb10_funcs),
STM32_PIN_CONF(STM32_PIN_PB11, pin_pb11_funcs),
};
int stm32_get_pin_config(int pin, int func)
{
/* GPIO function is always available, to save space it is not
* listed in alternate functions array
*/
if (func == STM32_PINMUX_FUNC_GPIO) {
return STM32F10X_PIN_CONFIG_BIAS_HIGH_IMPEDANCE;
}
/* analog function is another 'known' setting */
if (func == STM32_PINMUX_FUNC_ANALOG) {
return STM32F10X_PIN_CONFIG_ANALOG;
}
func -= 1;
for (int i = 0; i < ARRAY_SIZE(pins); i++) {
if (pins[i].pin == pin) {
if (func > pins[i].nfuncs) {
return -EINVAL;
}
return pins[i].funcs[func];
}
}
return -EINVAL;
}
clock_control_subsys_t stm32_get_port_clock(int port)
{
const clock_control_subsys_t ports_to_clock[STM32_PORTS_MAX] = {
UINT_TO_POINTER(STM32F10X_CLOCK_SUBSYS_IOPA),
UINT_TO_POINTER(STM32F10X_CLOCK_SUBSYS_IOPB),
UINT_TO_POINTER(STM32F10X_CLOCK_SUBSYS_IOPC),
UINT_TO_POINTER(STM32F10X_CLOCK_SUBSYS_IOPD),
UINT_TO_POINTER(STM32F10X_CLOCK_SUBSYS_IOPE),
};
if (port > STM32_PORTE) {
return NULL;
}
return ports_to_clock[port];
}
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