include/hw/timer/cmsdk-apb-timer.h

   1 /*
   2  * ARM CMSDK APB timer emulation
   3  *
   4  * Copyright (c) 2017 Linaro Limited
   5  * Written by Peter Maydell
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 or
   9  *  (at your option) any later version.
  10  */
  11
  12 #ifndef CMSDK_APB_TIMER_H
  13 #define CMSDK_APB_TIMER_H
  14
  15 #include "hw/qdev-properties.h"
  16 #include "hw/sysbus.h"
  17 #include "hw/ptimer.h"
  18 #include "hw/clock.h"
  19 #include "qom/object.h"
  20
  21 #define TYPE_CMSDK_APB_TIMER "cmsdk-apb-timer"
  22 OBJECT_DECLARE_SIMPLE_TYPE(CMSDKAPBTimer, CMSDK_APB_TIMER)
  23
  24 /*
  25  * QEMU interface:
  26  *  + Clock input "pclk": clock for the timer
  27  *  + sysbus MMIO region 0: the register bank
  28  *  + sysbus IRQ 0: timer interrupt TIMERINT
  29  */
  30 struct CMSDKAPBTimer {
  31     /*< private >*/
  32     SysBusDevice parent_obj;
  33
  34     /*< public >*/
  35     MemoryRegion iomem;
  36     qemu_irq timerint;
  37     struct ptimer_state *timer;
  38     Clock *pclk;
  39
  40     uint32_t ctrl;
  41     uint32_t value;
  42     uint32_t reload;
  43     uint32_t intstatus;
  44 };
  45
  46 #endif