LXR qemu/include/hw/timer/aspeed

   1/*
   2 *  ASPEED AST2400 Timer
   3 *
   4 *  Andrew Jeffery <andrew@aj.id.au>
   5 *
   6 *  Copyright (C) 2016 IBM Corp.
   7 *
   8 *  This program is free software; you can redistribute it and/or modify
   9 *  it under the terms of the GNU General Public License as published by
  10 *  the Free Software Foundation; either version 2 of the License, or
  11 *  (at your option) any later version.
  12 *
  13 *  This program is distributed in the hope that it will be useful,
  14 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 *  GNU General Public License for more details.
  17 *
  18 *  You should have received a copy of the GNU General Public License along
  19 *  with this program; if not, write to the Free Software Foundation, Inc.,
  20 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21 */
  22#ifndef ASPEED_TIMER_H
  23#define ASPEED_TIMER_H
  24
  25#include "qemu/timer.h"
  26
  27#define ASPEED_TIMER(obj) \
  28    OBJECT_CHECK(AspeedTimerCtrlState, (obj), TYPE_ASPEED_TIMER);
  29#define TYPE_ASPEED_TIMER "aspeed.timer"
  30#define ASPEED_TIMER_NR_TIMERS 8
  31
  32typedef struct AspeedTimer {
  33    qemu_irq irq;
  34
  35    uint8_t id;
  36    QEMUTimer timer;
  37
  38    /**
  39     * Track the line level as the ASPEED timers implement edge triggered
  40     * interrupts, signalling with both the rising and falling edge.
  41     */
  42    int32_t level;
  43    uint32_t reload;
  44    uint32_t match[2];
  45    uint64_t start;
  46} AspeedTimer;
  47
  48typedef struct AspeedTimerCtrlState {
  49    /*< private >*/
  50    SysBusDevice parent;
  51
  52    /*< public >*/
  53    MemoryRegion iomem;
  54
  55    uint32_t ctrl;
  56    uint32_t ctrl2;
  57    AspeedTimer timers[ASPEED_TIMER_NR_TIMERS];
  58} AspeedTimerCtrlState;
  59
  60#endif /* ASPEED_TIMER_H */
  61