sys_io.h

Go to the documentation of this file.

/*
 * Copyright (c) 2015, Wind River Systems, Inc.
 * Copyright (c) 2017, Oticon A/S
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
/* Memory mapped registers I/O functions in non-arch-specific C code */
 
#ifndef ZEPHYR_INCLUDE_ARCH_COMMON_SYS_IO_H_
#define ZEPHYR_INCLUDE_ARCH_COMMON_SYS_IO_H_
 
#ifndef _ASMLANGUAGE
 
#include <zephyr/toolchain.h>
#include <zephyr/types.h>
#include <zephyr/sys/sys_io.h>
 
#ifdef __cplusplus
extern "C" {
#endif

 
static ALWAYS_INLINE uint8_t sys_read8(mem_addr_t addr)
{
        return *(volatile uint8_t *)addr;
}
 
static ALWAYS_INLINE void sys_write8(uint8_t data, mem_addr_t addr)
{
        *(volatile uint8_t *)addr = data;
}
 
static ALWAYS_INLINE uint16_t sys_read16(mem_addr_t addr)
{
        return *(volatile uint16_t *)addr;
}
 
static ALWAYS_INLINE void sys_write16(uint16_t data, mem_addr_t addr)
{
        *(volatile uint16_t *)addr = data;
}
 
static ALWAYS_INLINE uint32_t sys_read32(mem_addr_t addr)
{
        return *(volatile uint32_t *)addr;
}
 
static ALWAYS_INLINE void sys_write32(uint32_t data, mem_addr_t addr)
{
        *(volatile uint32_t *)addr = data;
}
 
static ALWAYS_INLINE uint64_t sys_read64(mem_addr_t addr)
{
        return *(volatile uint64_t *)addr;
}
 
static ALWAYS_INLINE void sys_write64(uint64_t data, mem_addr_t addr)
{
        *(volatile uint64_t *)addr = data;
}

 
#ifdef __cplusplus
}
#endif
 
#endif /* _ASMLANGUAGE */
 
#endif /* ZEPHYR_INCLUDE_ARCH_COMMON_SYS_IO_H_ */