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/sysbus.h"
16 #include "hw/ptimer.h"
17 #include "hw/clock.h"
18 #include "qom/object.h"
19 
20 #define TYPE_CMSDK_APB_TIMER "cmsdk-apb-timer"
21 OBJECT_DECLARE_SIMPLE_TYPE(CMSDKAPBTimer, CMSDK_APB_TIMER)
22 
23 /*
24  * QEMU interface:
25  *  + Clock input "pclk": clock for the timer
26  *  + sysbus MMIO region 0: the register bank
27  *  + sysbus IRQ 0: timer interrupt TIMERINT
28  */
29 struct CMSDKAPBTimer {
30     /*< private >*/
31     SysBusDevice parent_obj;
32 
33     /*< public >*/
34     MemoryRegion iomem;
35     qemu_irq timerint;
36     struct ptimer_state *timer;
37     Clock *pclk;
38 
39     uint32_t ctrl;
40     uint32_t value;
41     uint32_t reload;
42     uint32_t intstatus;
43 };
44 
45 #endif
46