kendryte-k210-sdk/lib/drivers/include/io.h

/* 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.
 */
#ifndef _DRIVER_IO_H
#define _DRIVER_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 /* _DRIVER_IO_H */