1 /*
2  * ARM CMSDK APB timer emulation
3  *
4  * Copyright (c) 2017 Linaro Limited
5  * Written by Peter Maydell
6  *
7  *  This program is free software; you can redistribute it and/or modify
8  *  it under the terms of the GNU General Public License version 2 or
9  *  (at your option) any later version.
10  */
11 
12 #ifndef CMSDK_APB_TIMER_H
13 #define CMSDK_APB_TIMER_H
14 
15 #include "hw/qdev-properties.h"
16 #include "hw/sysbus.h"
17 #include "hw/ptimer.h"
18 #include "hw/clock.h"
19 #include "qom/object.h"
20 
21 #define TYPE_CMSDK_APB_TIMER "cmsdk-apb-timer"
22 OBJECT_DECLARE_SIMPLE_TYPE(CMSDKAPBTimer, CMSDK_APB_TIMER)
23 
24 /*
25  * QEMU interface:
26  *  + Clock input "pclk": clock for the timer
27  *  + sysbus MMIO region 0: the register bank
28  *  + sysbus IRQ 0: timer interrupt TIMERINT
29  */
30 struct CMSDKAPBTimer {
31     /*< private >*/
32     SysBusDevice parent_obj;
33 
34     /*< public >*/
35     MemoryRegion iomem;
36     qemu_irq timerint;
37     struct ptimer_state *timer;
38     Clock *pclk;
39 
40     uint32_t ctrl;
41     uint32_t value;
42     uint32_t reload;
43     uint32_t intstatus;
44 };
45 
46 #endif
47