xref: /openbmc/qemu/include/hw/misc/stm32f4xx_exti.h (revision f0984d40)
1 /*
2  * STM32F4XX EXTI
3  *
4  * Copyright (c) 2014 Alistair Francis <alistair@alistair23.me>
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_STM32F4XX_EXTI_H
26 #define HW_STM32F4XX_EXTI_H
27 
28 #include "hw/sysbus.h"
29 #include "qom/object.h"
30 
31 #define EXTI_IMR   0x00
32 #define EXTI_EMR   0x04
33 #define EXTI_RTSR  0x08
34 #define EXTI_FTSR  0x0C
35 #define EXTI_SWIER 0x10
36 #define EXTI_PR    0x14
37 
38 #define TYPE_STM32F4XX_EXTI "stm32f4xx-exti"
39 OBJECT_DECLARE_SIMPLE_TYPE(STM32F4xxExtiState, STM32F4XX_EXTI)
40 
41 #define NUM_GPIO_EVENT_IN_LINES 16
42 #define NUM_INTERRUPT_OUT_LINES 16
43 
44 struct STM32F4xxExtiState {
45     SysBusDevice parent_obj;
46 
47     MemoryRegion mmio;
48 
49     uint32_t exti_imr;
50     uint32_t exti_emr;
51     uint32_t exti_rtsr;
52     uint32_t exti_ftsr;
53     uint32_t exti_swier;
54     uint32_t exti_pr;
55 
56     qemu_irq irq[NUM_INTERRUPT_OUT_LINES];
57 };
58 
59 #endif
60