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https://github.com/RIOT-OS/RIOT.git
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117 lines
2.3 KiB
C
117 lines
2.3 KiB
C
/*
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* Copyright (C) 2023 Gunar Schorcht <gunar@schorcht.net>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup cpu_gd32v
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* @ingroup drivers_periph_gpio_ll
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* @{
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*
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* @file
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* @brief GPIO Low-level API implementation for the GD32V GPIO peripheral
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*
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* @author Gunar Schorcht <gunar@schorcht.net>
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*/
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#ifndef GPIO_LL_ARCH_H
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#define GPIO_LL_ARCH_H
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#include "architecture.h"
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#include "periph/gpio_ll.h"
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#include "periph_cpu.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef DOXYGEN /* hide implementation specific details from Doxygen */
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/**
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* @brief Number of ports available on GD32VF103
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*/
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#define GPIO_PORT_NUMOF 5
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/**
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* @brief Get a GPIO port by number
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*/
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#define GPIO_PORT(num) (GPIOA_BASE + ((num) << 10))
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/**
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* @brief Get a GPIO port number by gpio_t value
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*/
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#define GPIO_PORT_NUM(port) (((port) - GPIOA_BASE) >> 10)
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static inline uword_t gpio_ll_read(gpio_port_t port)
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{
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return ((GPIO_Type *)port)->ISTAT;
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}
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static inline uword_t gpio_ll_read_output(gpio_port_t port)
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{
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return ((GPIO_Type *)port)->OCTL;
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}
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static inline void gpio_ll_set(gpio_port_t port, uword_t mask)
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{
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((GPIO_Type *)port)->BOP = mask;
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}
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static inline void gpio_ll_clear(gpio_port_t port, uword_t mask)
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{
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((GPIO_Type *)port)->BOP = mask << 16;
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}
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static inline void gpio_ll_toggle(gpio_port_t port, uword_t mask)
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{
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unsigned irq_state = irq_disable();
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((GPIO_Type *)port)->OCTL ^= mask;
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irq_restore(irq_state);
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}
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static inline void gpio_ll_write(gpio_port_t port, uword_t value)
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{
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((GPIO_Type *)port)->OCTL = value;
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}
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static inline gpio_port_t gpio_get_port(gpio_t pin)
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{
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return pin & 0xfffffff0UL;
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}
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static inline uint8_t gpio_get_pin_num(gpio_t pin)
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{
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return pin & 0xfUL;
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}
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static inline gpio_port_t gpio_port_pack_addr(void *addr)
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{
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return (gpio_port_t)addr;
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}
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static inline void * gpio_port_unpack_addr(gpio_port_t port)
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{
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if (port < GPIOA_BASE) {
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return (void *)port;
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}
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return NULL;
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}
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static inline bool is_gpio_port_num_valid(uint_fast8_t num)
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{
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return num < GPIO_PORT_NUMOF;
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}
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#endif /* DOXYGEN */
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#ifdef __cplusplus
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}
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#endif
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#endif /* GPIO_LL_ARCH_H */
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/** @} */
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