xref: /openbmc/qemu/include/hw/misc/macio/gpio.h (revision 438c78da)
1 /*
2  * PowerMac NewWorld MacIO GPIO emulation
3  *
4  * Copyright (c) 2016 Benjamin Herrenschmidt
5  * Copyright (c) 2018 Mark Cave-Ayland
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a copy
8  * of this software and associated documentation files (the "Software"), to deal
9  * in the Software without restriction, including without limitation the rights
10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11  * copies of the Software, and to permit persons to whom the Software is
12  * furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included in
15  * all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23  * THE SOFTWARE.
24  */
25 
26 #ifndef MACIO_GPIO_H
27 #define MACIO_GPIO_H
28 
29 #define TYPE_MACIO_GPIO "macio-gpio"
30 #define MACIO_GPIO(obj) OBJECT_CHECK(MacIOGPIOState, (obj), TYPE_MACIO_GPIO)
31 
32 typedef struct MacIOGPIOState {
33     /*< private >*/
34     SysBusDevice parent;
35     /*< public >*/
36 
37     OpenPICState *pic;
38 
39     MemoryRegion gpiomem;
40     qemu_irq gpio_extirqs[10];
41     uint8_t gpio_levels[8];
42     uint8_t gpio_regs[36]; /* XXX Check count */
43 } MacIOGPIOState;
44 
45 void macio_set_gpio(MacIOGPIOState *s, uint32_t gpio, bool state);
46 
47 #endif
48