include/hw/nvram/mac_nvram.h

   1 /*
   2  * PowerMac NVRAM emulation
   3  *
   4  * Copyright (c) 2004-2007 Fabrice Bellard
   5  * Copyright (c) 2007 Jocelyn Mayer
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23  * THE SOFTWARE.
  24  */
  25
  26 #ifndef MAC_NVRAM_H
  27 #define MAC_NVRAM_H
  28
  29 #include "exec/memory.h"
  30 #include "hw/sysbus.h"
  31
  32 #define MACIO_NVRAM_SIZE 0x2000
  33
  34 #define TYPE_MACIO_NVRAM "macio-nvram"
  35 OBJECT_DECLARE_SIMPLE_TYPE(MacIONVRAMState, MACIO_NVRAM)
  36
  37 struct MacIONVRAMState {
  38     /*< private >*/
  39     SysBusDevice parent_obj;
  40     /*< public >*/
  41
  42     uint32_t size;
  43     uint32_t it_shift;
  44
  45     MemoryRegion mem;
  46     uint8_t *data;
  47     BlockBackend *blk;
  48 };
  49
  50 void pmac_format_nvram_partition(MacIONVRAMState *nvr, int len);
  51
  52 #endif /* MAC_NVRAM_H */