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https://github.com/ARM-software/arm-trusted-firmware.git
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c3cf06f1a3
All identifiers, regardless of use, that start with two underscores are reserved. This means they can't be used in header guards. The style that this project is now to use the full name of the file in capital letters followed by 'H'. For example, for a file called "uart_example.h", the header guard is UART_EXAMPLE_H. The exceptions are files that are imported from other projects: - CryptoCell driver - dt-bindings folders - zlib headers Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
/*
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* Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef MMIO_H
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#define MMIO_H
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#include <stdint.h>
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static inline void mmio_write_8(uintptr_t addr, uint8_t value)
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{
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*(volatile uint8_t*)addr = value;
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}
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static inline uint8_t mmio_read_8(uintptr_t addr)
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{
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return *(volatile uint8_t*)addr;
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}
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static inline void mmio_write_16(uintptr_t addr, uint16_t value)
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{
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*(volatile uint16_t*)addr = value;
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}
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static inline uint16_t mmio_read_16(uintptr_t addr)
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{
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return *(volatile uint16_t*)addr;
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}
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static inline void mmio_clrsetbits_16(uintptr_t addr,
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uint16_t clear,
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uint16_t set)
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{
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mmio_write_16(addr, (mmio_read_16(addr) & ~clear) | set);
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}
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static inline void mmio_write_32(uintptr_t addr, uint32_t value)
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{
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*(volatile uint32_t*)addr = value;
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}
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static inline uint32_t mmio_read_32(uintptr_t addr)
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{
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return *(volatile uint32_t*)addr;
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}
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static inline void mmio_write_64(uintptr_t addr, uint64_t value)
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{
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*(volatile uint64_t*)addr = value;
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}
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static inline uint64_t mmio_read_64(uintptr_t addr)
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{
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return *(volatile uint64_t*)addr;
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}
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static inline void mmio_clrbits_32(uintptr_t addr, uint32_t clear)
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{
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mmio_write_32(addr, mmio_read_32(addr) & ~clear);
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}
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static inline void mmio_setbits_32(uintptr_t addr, uint32_t set)
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{
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mmio_write_32(addr, mmio_read_32(addr) | set);
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}
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static inline void mmio_clrsetbits_32(uintptr_t addr,
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uint32_t clear,
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uint32_t set)
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{
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mmio_write_32(addr, (mmio_read_32(addr) & ~clear) | set);
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}
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#endif /* MMIO_H */
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