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/*
* OSKA Linux implementation -- memory mapped I/O.
*
* Copyright (C) 2009 Cambridge Silicon Radio Ltd.
*
* Refer to LICENSE.txt included with this source code for details on
* the license terms.
*/
#ifndef __OSKA_LINUX_IO_H
#define __OSKA_LINUX_IO_H
#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/kernel-compat.h>
typedef void __iomem *os_io_mem_t;
static inline uint8_t os_io_read8(os_io_mem_t base, unsigned offset)
{
return readb(base + offset);
}
static inline uint16_t os_io_read16(os_io_mem_t base, unsigned offset)
{
return readw(base + offset);
}
static inline uint32_t os_io_read32(os_io_mem_t base, unsigned offset)
{
return readl(base + offset);
}
static inline uint64_t os_io_read64(os_io_mem_t base, unsigned offset)
{
return readq(base + offset);
}
static inline void os_io_write8(os_io_mem_t base, unsigned offset, uint8_t val)
{
writeb(val, base + offset);
}
static inline void os_io_write16(os_io_mem_t base, unsigned offset, uint16_t val)
{
writew(val, base + offset);
}
static inline void os_io_write32(os_io_mem_t base, unsigned offset, uint32_t val)
{
writel(val, base + offset);
}
static inline void os_io_write64(os_io_mem_t base, unsigned offset, uint64_t val)
{
writeq(val, base + offset);
}
static inline void os_io_memory_barrier(void)
{
mb();
}
#endif /* #ifndef __OSKA_LINUX_IO_H */
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