LXR qemu/include/hw/rtc/m48t59.h

   1/*
   2 * QEMU M48T59 and M48T08 NVRAM emulation
   3 *
   4 * Copyright (c) 2003-2005, 2007 Jocelyn Mayer
   5 * Copyright (c) 2013 Hervé Poussineau
   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 HW_RTC_M48T59_H
  27#define HW_RTC_M48T59_H
  28
  29#include "exec/hwaddr.h"
  30#include "qom/object.h"
  31
  32#define TYPE_NVRAM "nvram"
  33
  34#define NVRAM_CLASS(klass) \
  35    OBJECT_CLASS_CHECK(NvramClass, (klass), TYPE_NVRAM)
  36#define NVRAM_GET_CLASS(obj) \
  37    OBJECT_GET_CLASS(NvramClass, (obj), TYPE_NVRAM)
  38#define NVRAM(obj) \
  39    INTERFACE_CHECK(Nvram, (obj), TYPE_NVRAM)
  40
  41typedef struct Nvram Nvram;
  42
  43typedef struct NvramClass {
  44    InterfaceClass parent;
  45
  46    uint32_t (*read)(Nvram *obj, uint32_t addr);
  47    void (*write)(Nvram *obj, uint32_t addr, uint32_t val);
  48    void (*toggle_lock)(Nvram *obj, int lock);
  49} NvramClass;
  50
  51Nvram *m48t59_init_isa(ISABus *bus, uint32_t io_base, uint16_t size,
  52                       int base_year, int type);
  53Nvram *m48t59_init(qemu_irq IRQ, hwaddr mem_base,
  54                   uint32_t io_base, uint16_t size, int base_year,
  55                   int type);
  56
  57#endif /* HW_M48T59_H */
  58