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79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/*
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* ASPEED AST2400 Timer
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*
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* Andrew Jeffery <andrew@aj.id.au>
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*
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* Copyright (C) 2016 IBM Corp.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef ASPEED_TIMER_H
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#define ASPEED_TIMER_H
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#include "qemu/timer.h"
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#include "hw/misc/aspeed_scu.h"
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#include "qom/object.h"
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#define TYPE_ASPEED_TIMER "aspeed.timer"
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OBJECT_DECLARE_TYPE(AspeedTimerCtrlState, AspeedTimerClass, ASPEED_TIMER)
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#define TYPE_ASPEED_2400_TIMER TYPE_ASPEED_TIMER "-ast2400"
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#define TYPE_ASPEED_2500_TIMER TYPE_ASPEED_TIMER "-ast2500"
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#define TYPE_ASPEED_2600_TIMER TYPE_ASPEED_TIMER "-ast2600"
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#define TYPE_ASPEED_1030_TIMER TYPE_ASPEED_TIMER "-ast1030"
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#define ASPEED_TIMER_NR_TIMERS 8
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typedef struct AspeedTimer {
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qemu_irq irq;
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uint8_t id;
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QEMUTimer timer;
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/**
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* Track the line level as the ASPEED timers implement edge triggered
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* interrupts, signalling with both the rising and falling edge.
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*/
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int32_t level;
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uint32_t reload;
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uint32_t match[2];
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uint64_t start;
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} AspeedTimer;
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struct AspeedTimerCtrlState {
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/*< private >*/
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SysBusDevice parent;
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/*< public >*/
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MemoryRegion iomem;
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uint32_t ctrl;
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uint32_t ctrl2;
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uint32_t ctrl3;
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uint32_t irq_sts;
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AspeedTimer timers[ASPEED_TIMER_NR_TIMERS];
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AspeedSCUState *scu;
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};
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struct AspeedTimerClass {
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SysBusDeviceClass parent_class;
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uint64_t (*read)(AspeedTimerCtrlState *s, hwaddr offset);
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void (*write)(AspeedTimerCtrlState *s, hwaddr offset, uint64_t value);
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};
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#endif /* ASPEED_TIMER_H */
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