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/*
* ASPEED AST2400 Timer
*
* Andrew Jeffery <andrew@aj.id.au>
*
* Copyright (C) 2016 IBM Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef ASPEED_TIMER_H
#define ASPEED_TIMER_H
#include "qemu/timer.h"
#include "hw/misc/aspeed_scu.h"
#include "qom/object.h"
#define TYPE_ASPEED_TIMER "aspeed.timer"
typedef struct AspeedTimerClass AspeedTimerClass;
typedef struct AspeedTimerCtrlState AspeedTimerCtrlState;
DECLARE_OBJ_CHECKERS(AspeedTimerCtrlState, AspeedTimerClass,
ASPEED_TIMER, TYPE_ASPEED_TIMER)
#define TYPE_ASPEED_2400_TIMER TYPE_ASPEED_TIMER "-ast2400"
#define TYPE_ASPEED_2500_TIMER TYPE_ASPEED_TIMER "-ast2500"
#define TYPE_ASPEED_2600_TIMER TYPE_ASPEED_TIMER "-ast2600"
#define ASPEED_TIMER_NR_TIMERS 8
typedef struct AspeedTimer {
qemu_irq irq;
uint8_t id;
QEMUTimer timer;
/**
* Track the line level as the ASPEED timers implement edge triggered
* interrupts, signalling with both the rising and falling edge.
*/
int32_t level;
uint32_t reload;
uint32_t match[2];
uint64_t start;
} AspeedTimer;
struct AspeedTimerCtrlState {
/*< private >*/
SysBusDevice parent;
/*< public >*/
MemoryRegion iomem;
uint32_t ctrl;
uint32_t ctrl2;
uint32_t ctrl3;
uint32_t irq_sts;
AspeedTimer timers[ASPEED_TIMER_NR_TIMERS];
AspeedSCUState *scu;
};
struct AspeedTimerClass {
SysBusDeviceClass parent_class;
uint64_t (*read)(AspeedTimerCtrlState *s, hwaddr offset);
void (*write)(AspeedTimerCtrlState *s, hwaddr offset, uint64_t value);
};
#endif /* ASPEED_TIMER_H */
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