xref: /openbmc/qemu/include/hw/timer/ibex_timer.h (revision 74154d7e)
1 /*
2  * QEMU lowRISC Ibex Timer device
3  *
4  * Copyright (c) 2021 Western Digital
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to deal
8  * in the Software without restriction, including without limitation the rights
9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  * copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22  * THE SOFTWARE.
23  */
24 
25 #ifndef HW_IBEX_TIMER_H
26 #define HW_IBEX_TIMER_H
27 
28 #include "hw/sysbus.h"
29 
30 #define TYPE_IBEX_TIMER "ibex-timer"
31 OBJECT_DECLARE_SIMPLE_TYPE(IbexTimerState, IBEX_TIMER)
32 
33 struct IbexTimerState {
34     /* <private> */
35     SysBusDevice parent_obj;
36 
37     /* <public> */
38     MemoryRegion mmio;
39 
40     uint32_t timer_ctrl;
41     uint32_t timer_cfg0;
42     uint32_t timer_compare_lower0;
43     uint32_t timer_compare_upper0;
44     uint32_t timer_intr_enable;
45     uint32_t timer_intr_state;
46 
47     uint32_t timebase_freq;
48 
49     qemu_irq irq;
50 
51     qemu_irq m_timer_irq;
52 };
53 #endif /* HW_IBEX_TIMER_H */
54