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#include "hw/misc/aspeed_scu.h"
27
28#define ASPEED_TIMER(obj) \
29 OBJECT_CHECK(AspeedTimerCtrlState, (obj), TYPE_ASPEED_TIMER);
30#define TYPE_ASPEED_TIMER "aspeed.timer"
31#define ASPEED_TIMER_NR_TIMERS 8
32
33typedef struct AspeedTimer {
34 qemu_irq irq;
35
36 uint8_t id;
37 QEMUTimer timer;
38
39 /**
40 * Track the line level as the ASPEED timers implement edge triggered
41 * interrupts, signalling with both the rising and falling edge.
42 */
43 int32_t level;
44 uint32_t reload;
45 uint32_t match[2];
46 uint64_t start;
47} AspeedTimer;
48
49typedef struct AspeedTimerCtrlState {
50 /*< private >*/
51 SysBusDevice parent;
52
53 /*< public >*/
54 MemoryRegion iomem;
55
56 uint32_t ctrl;
57 uint32_t ctrl2;
58 AspeedTimer timers[ASPEED_TIMER_NR_TIMERS];
59
60 AspeedSCUState *scu;
61} AspeedTimerCtrlState;
62
63#endif /* ASPEED_TIMER_H */
64