hw/intc/armv7m_nvic: Provide default "reset the system" behaviour for SYSRESETREQ
[qemu.git] / include / hw / timer / aspeed_timer.h
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 TYPE_ASPEED_2400_TIMER TYPE_ASPEED_TIMER "-ast2400"
32 #define TYPE_ASPEED_2500_TIMER TYPE_ASPEED_TIMER "-ast2500"
33 #define TYPE_ASPEED_2600_TIMER TYPE_ASPEED_TIMER "-ast2600"
34
35 #define ASPEED_TIMER_NR_TIMERS 8
36
37 typedef struct AspeedTimer {
38 qemu_irq irq;
39
40 uint8_t id;
41 QEMUTimer timer;
42
43 /**
44 * Track the line level as the ASPEED timers implement edge triggered
45 * interrupts, signalling with both the rising and falling edge.
46 */
47 int32_t level;
48 uint32_t reload;
49 uint32_t match[2];
50 uint64_t start;
51 } AspeedTimer;
52
53 typedef struct AspeedTimerCtrlState {
54 /*< private >*/
55 SysBusDevice parent;
56
57 /*< public >*/
58 MemoryRegion iomem;
59
60 uint32_t ctrl;
61 uint32_t ctrl2;
62 uint32_t ctrl3;
63 uint32_t irq_sts;
64 AspeedTimer timers[ASPEED_TIMER_NR_TIMERS];
65
66 AspeedSCUState *scu;
67 } AspeedTimerCtrlState;
68
69 #define ASPEED_TIMER_CLASS(klass) \
70 OBJECT_CLASS_CHECK(AspeedTimerClass, (klass), TYPE_ASPEED_TIMER)
71 #define ASPEED_TIMER_GET_CLASS(obj) \
72 OBJECT_GET_CLASS(AspeedTimerClass, (obj), TYPE_ASPEED_TIMER)
73
74 typedef struct AspeedTimerClass {
75 SysBusDeviceClass parent_class;
76
77 uint64_t (*read)(AspeedTimerCtrlState *s, hwaddr offset);
78 void (*write)(AspeedTimerCtrlState *s, hwaddr offset, uint64_t value);
79 } AspeedTimerClass;
80
81 #endif /* ASPEED_TIMER_H */