Archipelago » qemu

#ifndef READ_WRITE_HANDLER_H

#define READ_WRITE_HANDLER_H

#include "qemu-common.h"

#include "ioport.h"

typedef struct ReadWriteHandler ReadWriteHandler;

/* len is guaranteed to be one of 1, 2 or 4, addr is guaranteed to fit in an

 * appropriate type (io/memory/etc). They do not need to be range checked. */

typedef void WriteHandlerFunc(ReadWriteHandler *, pcibus_t addr,

                              uint32_t value, int len);

typedef uint32_t ReadHandlerFunc(ReadWriteHandler *, pcibus_t addr, int len);

struct ReadWriteHandler {

    WriteHandlerFunc *write;

    ReadHandlerFunc *read;

};

/* Helpers for when we want to use a single routine with length. */

/* CPU memory handler: both read and write must be present. */

int cpu_register_io_memory_simple(ReadWriteHandler *, int endian);

/* io port handler: can supply only read or write handlers. */

int register_ioport_simple(ReadWriteHandler *,

                           pio_addr_t start, int length, int size);

#endif