1 /*
2  * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without modification,
5  * are permitted provided that the following conditions are met:
6  *
7  * 1. Redistributions of source code must retain the above copyright notice, this list of
8  *    conditions and the following disclaimer.
9  *
10  * 2. Redistributions in binary form must reproduce the above copyright notice, this list
11  *    of conditions and the following disclaimer in the documentation and/or other materials
12  *    provided with the distribution.
13  *
14  * 3. Neither the name of the copyright holder nor the names of its contributors may be used
15  *    to endorse or promote products derived from this software without specific prior written
16  *    permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
22  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
27  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
28  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #ifndef GPIO_USER_H
32 #define GPIO_USER_H
33 #include "fcntl.h"
34 #include "hdf_base.h"
35 #include "sys/ioctl.h"
36 
37 #define PL061_GPIO_USER_SUPPORT
38 
39 int32_t GpioAddVfs(uint16_t bitNum);
40 void GpioRemoveVfs(void);
41 
42 typedef void (*irqFunc)(unsigned int irq, void *data);
43 
44 typedef struct GpioBitInfo {
45     unsigned int  groupnumber;
46     unsigned int  bitnumber;
47 
48     unsigned char value;
49 #define GPIO_VALUE_HIGH         1
50 #define GPIO_VALUE_LOW          0
51     unsigned char direction;
52 #define GPIO_DIRECTION_IN       0
53 #define GPIO_DIRECTION_IN_OUT   1
54 
55     unsigned char irqStatus;
56     unsigned char irqEnable;
57 #define GPIO_IRQ_ENABLE         1
58 #define GPIO_IRQ_DISABLE        0
59     irqFunc irqHandler;
60     unsigned int irqType;
61 #define IRQ_TYPE_NONE           0x00000000
62 #define IRQ_TYPE_EDGE_RISING    0x00000001
63 #define IRQ_TYPE_EDGE_FALLING   0x00000002
64 #define IRQ_TYPE_EDGE_BOTH      (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING)
65 #define IRQ_TYPE_LEVEL_HIGH     0x00000004
66 #define IRQ_TYPE_LEVEL_LOW      0x00000008
67 #define IRQ_TYPE_LEVEL_MASK     (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)
68     void *data;
69 } gpio_groupbit_info;
70 
71 #define GPIO_SET_DIR            _IOWR('w', 4, gpio_groupbit_info)
72 #define GPIO_GET_DIR            _IOWR('r', 5, gpio_groupbit_info)
73 #define GPIO_READ_BIT           _IOWR('r', 6, gpio_groupbit_info)
74 #define GPIO_WRITE_BIT          _IOWR('w', 7, gpio_groupbit_info)
75 
76 #endif
77