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/sysbus.h"
  16 #include "hw/ptimer.h"
  17 #include "hw/clock.h"
  18 #include "qom/object.h"
  19
  20 #define TYPE_CMSDK_APB_TIMER "cmsdk-apb-timer"
  21 OBJECT_DECLARE_SIMPLE_TYPE(CMSDKAPBTimer, CMSDK_APB_TIMER)
  22
  23 /*
  24  * QEMU interface:
  25  *  + Clock input "pclk": clock for the timer
  26  *  + sysbus MMIO region 0: the register bank
  27  *  + sysbus IRQ 0: timer interrupt TIMERINT
  28  */
  29 struct CMSDKAPBTimer {
  30     /*< private >*/
  31     SysBusDevice parent_obj;
  32
  33     /*< public >*/
  34     MemoryRegion iomem;
  35     qemu_irq timerint;
  36     struct ptimer_state *timer;
  37     Clock *pclk;
  38
  39     uint32_t ctrl;
  40     uint32_t value;
  41     uint32_t reload;
  42     uint32_t intstatus;
  43 };
  44
  45 #endif