78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
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/*
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* Copyright (c) 2016 Open-RnD Sp. z o.o.
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* Copyright (c) 2016 BayLibre, SAS
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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 "soc_pinmux.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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/**
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* @brief pin configuration
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*/
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static const struct stm32_pinmux_conf pins[] = {
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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 STM32L4X_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 STM32L4X_PIN_CONFIG_ANALOG;
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}
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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 - 1) >= pins[i].nfuncs) {
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return -EINVAL;
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}
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return pins[i].funcs[func - 1];
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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(STM32L4X_CLOCK_SUBSYS_GPIOA),
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UINT_TO_POINTER(STM32L4X_CLOCK_SUBSYS_GPIOB),
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UINT_TO_POINTER(STM32L4X_CLOCK_SUBSYS_GPIOC),
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UINT_TO_POINTER(STM32L4X_CLOCK_SUBSYS_GPIOD),
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UINT_TO_POINTER(STM32L4X_CLOCK_SUBSYS_GPIOE),
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UINT_TO_POINTER(STM32L4X_CLOCK_SUBSYS_GPIOF),
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UINT_TO_POINTER(STM32L4X_CLOCK_SUBSYS_GPIOG),
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UINT_TO_POINTER(STM32L4X_CLOCK_SUBSYS_GPIOH),
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};
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if (port > STM32_PORTH) {
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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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