136 lines
3.7 KiB
C
136 lines
3.7 KiB
C
/*
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Copyright (c) 2017 Daniel Fekete
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#ifndef STM32_GPIO_H
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#define STM32_GPIO_H
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#include "stm32_def.h"
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#include "stm32_pin_list.h"
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#include "variant.h"
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#include "stm32_HAL/stm32XXxx_ll_gpio.h"
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#define INPUT 0x0
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#define OUTPUT 0x1
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#define INPUT_PULLUP 0x2
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#define INPUT_PULLDOWN 0x3
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#ifndef GPIO_SPEED_FREQ_VERY_HIGH
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#define GPIO_SPEED_FREQ_VERY_HIGH GPIO_SPEED_FREQ_HIGH
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#endif
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#define RwReg uint32_t
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#ifdef __cplusplus
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extern "C"{
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#endif
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typedef struct {
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GPIO_TypeDef *port;
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uint32_t pin_mask;
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} stm32_port_pin_type;
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typedef uint32_t (*stm32_clock_freq_func)();
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typedef struct {
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void *instance;
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stm32_clock_freq_func clock_freq_func;
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} stm32_clock_freq_list_type;
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extern const stm32_port_pin_type variant_pin_list[NUM_PINS];
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/**
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* Start clock for the fedined port
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*/
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void stm32GpioClockEnable(GPIO_TypeDef *port);
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/**
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* If PWM is used at least once, this method is set to the PWM disable function in stm32_PWM.c
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*/
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typedef void (*stm32_pwm_disable_callback_func)(GPIO_TypeDef *port, uint32_t pin);
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extern stm32_pwm_disable_callback_func stm32_pwm_disable_callback;
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inline void digitalWrite(uint8_t pin, uint8_t value) {
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if (pin >= sizeof(variant_pin_list) / sizeof(variant_pin_list[0])) {
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return;
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}
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stm32_port_pin_type port_pin = variant_pin_list[pin];
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HAL_GPIO_WritePin(port_pin.port, port_pin.pin_mask, value ? GPIO_PIN_SET : GPIO_PIN_RESET);
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}
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inline int digitalRead(uint8_t pin) {
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if (pin >= sizeof(variant_pin_list) / sizeof(variant_pin_list[0])) {
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return 0;
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}
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stm32_port_pin_type port_pin = variant_pin_list[pin];
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return HAL_GPIO_ReadPin(port_pin.port, port_pin.pin_mask);
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}
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#ifdef __cplusplus
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}
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#endif
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///////////////////////////////
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// The following functions are meant to be used with compile time constant parameters
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#define PIN(a, b) { GPIO##a , LL_GPIO_PIN_##b }
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static const stm32_port_pin_type variant_pin_list_ll_static[] = {
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PIN_LIST
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};
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#undef PIN
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#ifdef __cplusplus
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inline void digitalWrite(__ConstPin pin, uint8_t value) {
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if (value) {
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LL_GPIO_SetOutputPin(variant_pin_list_ll_static[pin].port, variant_pin_list_ll_static[pin].pin_mask);
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} else {
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LL_GPIO_ResetOutputPin(variant_pin_list_ll_static[pin].port, variant_pin_list_ll_static[pin].pin_mask);
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}
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}
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inline int digitalRead(__ConstPin pin) {
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return LL_GPIO_IsInputPinSet(variant_pin_list_ll_static[pin].port, variant_pin_list_ll_static[pin].pin_mask);
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}
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extern "C" void pinModeLL(GPIO_TypeDef *port, uint32_t ll_pin, uint8_t mode);
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inline static void pinMode(__ConstPin pin, uint8_t mode) {
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pinModeLL(variant_pin_list_ll_static[pin].port, variant_pin_list_ll_static[pin].pin_mask, mode);
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}
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#endif
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#endif
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