xiuos/Ubiquitous/XiUOS/board/aiit-riscv64-board/third_party_driver/include/io.h

61 lines
2.0 KiB
C

/* Copyright 2018 Canaan Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file io.h
* @brief add from Canaan k210 SDK
* https://canaan-creative.com/developer
* @version 1.0
* @author AIIT XUOS Lab
* @date 2021-04-25
*/
#ifndef __IO_H__
#define __IO_H__
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
#define readb(addr) (*(volatile uint8_t *)(addr))
#define readw(addr) (*(volatile uint16_t *)(addr))
#define readl(addr) (*(volatile uint32_t *)(addr))
#define readq(addr) (*(volatile uint64_t *)(addr))
#define writeb(v, addr) \
{ \
(*(volatile uint8_t *)(addr)) = (v); \
}
#define writew(v, addr) \
{ \
(*(volatile uint16_t *)(addr)) = (v); \
}
#define writel(v, addr) \
{ \
(*(volatile uint32_t *)(addr)) = (v); \
}
#define writeq(v, addr) \
{ \
(*(volatile uint64_t *)(addr)) = (v); \
}
#ifdef __cplusplus
}
#endif
#endif /* __IO_H__ */