cpu/xmega/include/cpu/io.h

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#ifndef CPU_IO_H_INCLUDED
#define CPU_IO_H_INCLUDED

#ifndef __ASSEMBLY__

#include <stdint.h>

static inline uint8_t mmio_read8(const void *p)
{
        return *((const volatile uint8_t *)p);
}

static inline void mmio_write8(void *p, uint8_t val)
{
        *(volatile uint8_t *)p = val;
}

static inline uint16_t mmio_read16(const void *p)
{
        uint8_t *addr = (uint8_t *)p;
        uint16_t val;

        val = mmio_read8(addr);
        val |= mmio_read8(++addr) << 8;

        return val;
}

static inline void mmio_write16(void *p, uint16_t val)
{
        uint8_t *addr = (uint8_t *)p;

        mmio_write8(addr, val & 0xff);
        mmio_write8(++addr, val >> 8);
}

extern void mmio_ccp_write8(void *addr, uint8_t value);

#endif /* __ASSEMBLY__ */


#endif /* CPU_IO_H_INCLUDED */

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