gpio.h revision 96c1db7b9d601c31d103389cac074a6cce0d7633 
1/****************************************************************************
2 ****************************************************************************
3 ***
4 ***   This header was automatically generated from a Linux kernel header
5 ***   of the same name, to make information necessary for userspace to
6 ***   call into the kernel available to libc.  It contains only constants,
7 ***   structures, and macros generated from the original header, and thus,
8 ***   contains no copyrightable information.
9 ***
10 ***   To edit the content of this header, modify the corresponding
11 ***   source file (e.g. under external/kernel-headers/original/) then
12 ***   run bionic/libc/kernel/tools/update_all.py
13 ***
14 ***   Any manual change here will be lost the next time this script will
15 ***   be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef _UAPI_GPIO_H_
20#define _UAPI_GPIO_H_
21#include <linux/ioctl.h>
22#include <linux/types.h>
23struct gpiochip_info {
24  char name[32];
25  char label[32];
26  __u32 lines;
27};
28#define GPIOLINE_FLAG_KERNEL (1UL << 0)
29#define GPIOLINE_FLAG_IS_OUT (1UL << 1)
30#define GPIOLINE_FLAG_ACTIVE_LOW (1UL << 2)
31#define GPIOLINE_FLAG_OPEN_DRAIN (1UL << 3)
32#define GPIOLINE_FLAG_OPEN_SOURCE (1UL << 4)
33struct gpioline_info {
34  __u32 line_offset;
35  __u32 flags;
36  char name[32];
37  char consumer[32];
38};
39#define GPIOHANDLES_MAX 64
40#define GPIOHANDLE_REQUEST_INPUT (1UL << 0)
41#define GPIOHANDLE_REQUEST_OUTPUT (1UL << 1)
42#define GPIOHANDLE_REQUEST_ACTIVE_LOW (1UL << 2)
43#define GPIOHANDLE_REQUEST_OPEN_DRAIN (1UL << 3)
44#define GPIOHANDLE_REQUEST_OPEN_SOURCE (1UL << 4)
45struct gpiohandle_request {
46  __u32 lineoffsets[GPIOHANDLES_MAX];
47  __u32 flags;
48  __u8 default_values[GPIOHANDLES_MAX];
49  char consumer_label[32];
50  __u32 lines;
51  int fd;
52};
53struct gpiohandle_data {
54  __u8 values[GPIOHANDLES_MAX];
55};
56#define GPIOHANDLE_GET_LINE_VALUES_IOCTL _IOWR(0xB4, 0x08, struct gpiohandle_data)
57#define GPIOHANDLE_SET_LINE_VALUES_IOCTL _IOWR(0xB4, 0x09, struct gpiohandle_data)
58#define GPIOEVENT_REQUEST_RISING_EDGE (1UL << 0)
59#define GPIOEVENT_REQUEST_FALLING_EDGE (1UL << 1)
60#define GPIOEVENT_REQUEST_BOTH_EDGES ((1UL << 0) | (1UL << 1))
61struct gpioevent_request {
62  __u32 lineoffset;
63  __u32 handleflags;
64  __u32 eventflags;
65  char consumer_label[32];
66  int fd;
67};
68#define GPIOEVENT_EVENT_RISING_EDGE 0x01
69#define GPIOEVENT_EVENT_FALLING_EDGE 0x02
70struct gpioevent_data {
71  __u64 timestamp;
72  __u32 id;
73};
74#define GPIO_GET_CHIPINFO_IOCTL _IOR(0xB4, 0x01, struct gpiochip_info)
75#define GPIO_GET_LINEINFO_IOCTL _IOWR(0xB4, 0x02, struct gpioline_info)
76#define GPIO_GET_LINEHANDLE_IOCTL _IOWR(0xB4, 0x03, struct gpiohandle_request)
77#define GPIO_GET_LINEEVENT_IOCTL _IOWR(0xB4, 0x04, struct gpioevent_request)
78#endif
79