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https://github.com/zephyrproject-rtos/zephyr
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ebe51e26cb
As of today 'include/arch/common/sys_io.h" has generic implementation for MMIO accessors and memory bits manipulation functions. That leads to several architectures like ARC, ARM/aarch64, ARM/aarch32/corter_a_r redefine entire 'common/sys_io.h' even if they only have different MMIO accessors implementation. So split 'include/arch/common/sys_io.h" to * sys_io.h - generic MMIO accessors * sys_bitops.h - generic memory bits manipulation functions Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
60 lines
1.1 KiB
C
60 lines
1.1 KiB
C
/*
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* Copyright (c) 2015, Wind River Systems, Inc.
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* Copyright (c) 2017, Oticon A/S
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/* Memory mapped registers I/O functions in non-arch-specific C code */
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#ifndef ZEPHYR_INCLUDE_ARCH_COMMON_SYS_IO_H_
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#define ZEPHYR_INCLUDE_ARCH_COMMON_SYS_IO_H_
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#ifndef _ASMLANGUAGE
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#include <toolchain.h>
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#include <zephyr/types.h>
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#include <sys/sys_io.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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static ALWAYS_INLINE uint8_t sys_read8(mem_addr_t addr)
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{
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return *(volatile uint8_t *)addr;
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}
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static ALWAYS_INLINE void sys_write8(uint8_t data, mem_addr_t addr)
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{
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*(volatile uint8_t *)addr = data;
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}
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static ALWAYS_INLINE uint16_t sys_read16(mem_addr_t addr)
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{
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return *(volatile uint16_t *)addr;
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}
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static ALWAYS_INLINE void sys_write16(uint16_t data, mem_addr_t addr)
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{
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*(volatile uint16_t *)addr = data;
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}
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static ALWAYS_INLINE uint32_t sys_read32(mem_addr_t addr)
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{
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return *(volatile uint32_t *)addr;
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}
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static ALWAYS_INLINE void sys_write32(uint32_t data, mem_addr_t addr)
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{
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*(volatile uint32_t *)addr = data;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ASMLANGUAGE */
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#endif /* ZEPHYR_INCLUDE_ARCH_COMMON_SYS_IO_H_ */
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