LXR qemu/include/hw/watchdog/wdt

   1/*
   2 * ASPEED Watchdog Controller
   3 *
   4 * Copyright (C) 2016-2017 IBM Corp.
   5 *
   6 * This code is licensed under the GPL version 2 or later. See the
   7 * COPYING file in the top-level directory.
   8 */
   9
  10#ifndef WDT_ASPEED_H
  11#define WDT_ASPEED_H
  12
  13#include "hw/misc/aspeed_scu.h"
  14#include "hw/sysbus.h"
  15#include "qom/object.h"
  16
  17#define TYPE_ASPEED_WDT "aspeed.wdt"
  18OBJECT_DECLARE_TYPE(AspeedWDTState, AspeedWDTClass, ASPEED_WDT)
  19#define TYPE_ASPEED_2400_WDT TYPE_ASPEED_WDT "-ast2400"
  20#define TYPE_ASPEED_2500_WDT TYPE_ASPEED_WDT "-ast2500"
  21#define TYPE_ASPEED_2600_WDT TYPE_ASPEED_WDT "-ast2600"
  22
  23#define ASPEED_WDT_REGS_MAX        (0x20 / 4)
  24
  25struct AspeedWDTState {
  26    /*< private >*/
  27    SysBusDevice parent_obj;
  28    QEMUTimer *timer;
  29
  30    /*< public >*/
  31    MemoryRegion iomem;
  32    uint32_t regs[ASPEED_WDT_REGS_MAX];
  33
  34    AspeedSCUState *scu;
  35    uint32_t pclk_freq;
  36};
  37
  38
  39struct AspeedWDTClass {
  40    SysBusDeviceClass parent_class;
  41
  42    uint32_t offset;
  43    uint32_t ext_pulse_width_mask;
  44    uint32_t reset_ctrl_reg;
  45    void (*reset_pulse)(AspeedWDTState *s, uint32_t property);
  46    void (*wdt_reload)(AspeedWDTState *s);
  47    uint64_t (*sanitize_ctrl)(uint64_t data);
  48};
  49
  50#endif /* WDT_ASPEED_H */
  51