xref: /openbmc/qemu/include/hw/nvram/mac_nvram.h (revision 1f7888e2)

/*
 * PowerMac NVRAM emulation
 *
 * Copyright (c) 2004-2007 Fabrice Bellard
 * Copyright (c) 2007 Jocelyn Mayer
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#ifndef MAC_NVRAM_H
#define MAC_NVRAM_H

#include "exec/memory.h"
#include "hw/sysbus.h"

#define MACIO_NVRAM_SIZE 0x2000

#define TYPE_MACIO_NVRAM "macio-nvram"
OBJECT_DECLARE_SIMPLE_TYPE(MacIONVRAMState, MACIO_NVRAM)

struct MacIONVRAMState {
    /*< private >*/
    SysBusDevice parent_obj;
    /*< public >*/

    uint32_t size;
    uint32_t it_shift;

    MemoryRegion mem;
    uint8_t *data;
    BlockBackend *blk;
};

void pmac_format_nvram_partition(MacIONVRAMState *nvr, int len);

#endif /* MAC_NVRAM_H */