LXR qemu/include/hw/timer/stellaris-gptm.h

   1/*
   2 * Luminary Micro Stellaris General Purpose Timer Module
   3 *
   4 * Copyright (c) 2006 CodeSourcery.
   5 * Written by Paul Brook
   6 *
   7 * This code is licensed under the GPL.
   8 */
   9
  10#ifndef HW_TIMER_STELLARIS_GPTM_H
  11#define HW_TIMER_STELLARIS_GPTM_H
  12
  13#include "qom/object.h"
  14#include "hw/sysbus.h"
  15#include "hw/irq.h"
  16#include "hw/clock.h"
  17
  18#define TYPE_STELLARIS_GPTM "stellaris-gptm"
  19OBJECT_DECLARE_SIMPLE_TYPE(gptm_state, STELLARIS_GPTM)
  20
  21/*
  22 * QEMU interface:
  23 *  + sysbus MMIO region 0: register bank
  24 *  + sysbus IRQ 0: timer interrupt
  25 *  + unnamed GPIO output 0: trigger output for the ADC
  26 *  + Clock input "clk": the 32-bit countdown timer runs at this speed
  27 */
  28struct gptm_state {
  29    SysBusDevice parent_obj;
  30
  31    MemoryRegion iomem;
  32    uint32_t config;
  33    uint32_t mode[2];
  34    uint32_t control;
  35    uint32_t state;
  36    uint32_t mask;
  37    uint32_t load[2];
  38    uint32_t match[2];
  39    uint32_t prescale[2];
  40    uint32_t match_prescale[2];
  41    uint32_t rtc;
  42    int64_t tick[2];
  43    struct gptm_state *opaque[2];
  44    QEMUTimer *timer[2];
  45    /* The timers have an alternate output used to trigger the ADC.  */
  46    qemu_irq trigger;
  47    qemu_irq irq;
  48    Clock *clk;
  49};
  50
  51#endif
  52