117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/*
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* Copyright (c) 2016 Open-RnD Sp. z o.o.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <errno.h>
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#include "soc.h"
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#include <device.h>
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#include <misc/util.h>
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#include <pinmux/stm32/pinmux_stm32.h>
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#include <drivers/clock_control/stm32_clock_control.h>
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static const stm32_pin_func_t pin_pa9_funcs[] = {
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[STM32F1_PINMUX_FUNC_PA9_USART1_TX - 1] =
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STM32F10X_PIN_CONFIG_AF_PUSH_PULL,
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};
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static const stm32_pin_func_t pin_pa10_funcs[] = {
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[STM32F1_PINMUX_FUNC_PA10_USART1_RX - 1] =
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STM32F10X_PIN_CONFIG_BIAS_HIGH_IMPEDANCE,
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};
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static const stm32_pin_func_t pin_pa2_funcs[] = {
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[STM32F1_PINMUX_FUNC_PA2_USART2_TX - 1] =
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STM32F10X_PIN_CONFIG_AF_PUSH_PULL,
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};
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static const stm32_pin_func_t pin_pa3_funcs[] = {
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[STM32F1_PINMUX_FUNC_PA3_USART2_RX - 1] =
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STM32F10X_PIN_CONFIG_BIAS_HIGH_IMPEDANCE,
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};
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static const stm32_pin_func_t pin_pb10_funcs[] = {
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[STM32F1_PINMUX_FUNC_PB10_USART3_TX - 1] =
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STM32F10X_PIN_CONFIG_AF_PUSH_PULL,
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};
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static const stm32_pin_func_t pin_pb11_funcs[] = {
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[STM32F1_PINMUX_FUNC_PB11_USART3_RX - 1] =
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STM32F10X_PIN_CONFIG_BIAS_HIGH_IMPEDANCE,
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};
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static const stm32_pin_func_t pin_pa8_funcs[] = {
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[STM32F1_PINMUX_FUNC_PA8_PWM1_CH1 - 1] =
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STM32F10X_PIN_CONFIG_AF_PUSH_PULL,
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};
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/**
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* @brief pin configuration
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*/
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static struct stm32_pinmux_conf pins[] = {
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STM32_PIN_CONF(STM32_PIN_PA2, pin_pa2_funcs),
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STM32_PIN_CONF(STM32_PIN_PA3, pin_pa3_funcs),
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STM32_PIN_CONF(STM32_PIN_PA8, pin_pa8_funcs),
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STM32_PIN_CONF(STM32_PIN_PA9, pin_pa9_funcs),
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STM32_PIN_CONF(STM32_PIN_PA10, pin_pa10_funcs),
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STM32_PIN_CONF(STM32_PIN_PB10, pin_pb10_funcs),
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STM32_PIN_CONF(STM32_PIN_PB11, pin_pb11_funcs),
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};
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int stm32_get_pin_config(int pin, int func)
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{
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/* GPIO function is always available, to save space it is not
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* listed in alternate functions array
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*/
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if (func == STM32_PINMUX_FUNC_GPIO) {
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return STM32F10X_PIN_CONFIG_BIAS_HIGH_IMPEDANCE;
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}
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/* analog function is another 'known' setting */
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if (func == STM32_PINMUX_FUNC_ANALOG) {
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return STM32F10X_PIN_CONFIG_ANALOG;
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}
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func -= 1;
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for (int i = 0; i < ARRAY_SIZE(pins); i++) {
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if (pins[i].pin == pin) {
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if (func > pins[i].nfuncs) {
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return -EINVAL;
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}
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return pins[i].funcs[func];
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}
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}
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return -EINVAL;
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}
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clock_control_subsys_t stm32_get_port_clock(int port)
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{
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const clock_control_subsys_t ports_to_clock[STM32_PORTS_MAX] = {
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UINT_TO_POINTER(STM32F10X_CLOCK_SUBSYS_IOPA),
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UINT_TO_POINTER(STM32F10X_CLOCK_SUBSYS_IOPB),
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UINT_TO_POINTER(STM32F10X_CLOCK_SUBSYS_IOPC),
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UINT_TO_POINTER(STM32F10X_CLOCK_SUBSYS_IOPD),
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UINT_TO_POINTER(STM32F10X_CLOCK_SUBSYS_IOPE),
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};
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if (port > STM32_PORTE) {
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return NULL;
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}
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return ports_to_clock[port];
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}
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