51 lines
1.9 KiB
C
51 lines
1.9 KiB
C
/* Copyright 2018 Canaan Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _DRIVER_IO_H
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#define _DRIVER_IO_H
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define readb(addr) (*(volatile uint8_t *)(addr))
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#define readw(addr) (*(volatile uint16_t *)(addr))
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#define readl(addr) (*(volatile uint32_t *)(addr))
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#define readq(addr) (*(volatile uint64_t *)(addr))
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#define writeb(v, addr) \
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{ \
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(*(volatile uint8_t *)(addr)) = (v); \
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}
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#define writew(v, addr) \
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{ \
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(*(volatile uint16_t *)(addr)) = (v); \
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}
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#define writel(v, addr) \
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{ \
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(*(volatile uint32_t *)(addr)) = (v); \
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}
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#define writeq(v, addr) \
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{ \
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(*(volatile uint64_t *)(addr)) = (v); \
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* _DRIVER_IO_H */
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