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io.h
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67 lines (53 loc) · 1.59 KB
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/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright(c) 2016 Intel Corporation. All rights reserved.
*
* Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
*/
#ifndef __SOF_LIB_IO_H__
#define __SOF_LIB_IO_H__
#include <config.h>
#include <stdint.h>
#if CONFIG_LIBRARY
static inline uint32_t io_reg_read(uint32_t reg) { return 0; }
static inline void io_reg_write(uint32_t reg, uint32_t val) {}
static inline void io_reg_update_bits(uint32_t reg, uint32_t mask,
uint32_t value) {}
static inline uint16_t io_reg_read16(uint32_t reg) { return 0; }
static inline void io_reg_write16(uint32_t reg, uint16_t val) {}
static inline void io_reg_update_bits16(uint32_t reg, uint16_t mask,
uint16_t value) {}
#else
static inline uint32_t io_reg_read(uint32_t reg)
{
return *((volatile uint32_t*)reg);
}
static inline void io_reg_write(uint32_t reg, uint32_t val)
{
*((volatile uint32_t*)reg) = val;
}
static inline void io_reg_update_bits(uint32_t reg, uint32_t mask,
uint32_t value)
{
io_reg_write(reg, (io_reg_read(reg) & (~mask)) | (value & mask));
}
static inline uint16_t io_reg_read16(uint32_t reg)
{
return *((volatile uint16_t*)reg);
}
static inline void io_reg_write16(uint32_t reg, uint16_t val)
{
*((volatile uint16_t*)reg) = val;
}
static inline uint64_t io_reg_read_64(uint32_t reg)
{
return (uint64_t)io_reg_read(reg) +
(((uint64_t)io_reg_read(reg + 4)) << 32);
}
static inline void io_reg_update_bits16(uint32_t reg, uint16_t mask,
uint16_t value)
{
io_reg_write16(reg, (io_reg_read16(reg) & (~mask)) | (value & mask));
}
#endif
#endif /* __SOF_LIB_IO_H__ */