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 | |
33 | typedef 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 | |
49 | typedef 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 | |