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/const.h>
22 #include <linux/ioctl.h>
23 #include <linux/types.h>
24 #define GPIO_MAX_NAME_SIZE 32
25 struct gpiochip_info {
26   char name[GPIO_MAX_NAME_SIZE];
27   char label[GPIO_MAX_NAME_SIZE];
28   __u32 lines;
29 };
30 #define GPIO_V2_LINES_MAX 64
31 #define GPIO_V2_LINE_NUM_ATTRS_MAX 10
32 enum gpio_v2_line_flag {
33   GPIO_V2_LINE_FLAG_USED = _BITULL(0),
34   GPIO_V2_LINE_FLAG_ACTIVE_LOW = _BITULL(1),
35   GPIO_V2_LINE_FLAG_INPUT = _BITULL(2),
36   GPIO_V2_LINE_FLAG_OUTPUT = _BITULL(3),
37   GPIO_V2_LINE_FLAG_EDGE_RISING = _BITULL(4),
38   GPIO_V2_LINE_FLAG_EDGE_FALLING = _BITULL(5),
39   GPIO_V2_LINE_FLAG_OPEN_DRAIN = _BITULL(6),
40   GPIO_V2_LINE_FLAG_OPEN_SOURCE = _BITULL(7),
41   GPIO_V2_LINE_FLAG_BIAS_PULL_UP = _BITULL(8),
42   GPIO_V2_LINE_FLAG_BIAS_PULL_DOWN = _BITULL(9),
43   GPIO_V2_LINE_FLAG_BIAS_DISABLED = _BITULL(10),
44   GPIO_V2_LINE_FLAG_EVENT_CLOCK_REALTIME = _BITULL(11),
45 };
46 struct gpio_v2_line_values {
47   __aligned_u64 bits;
48   __aligned_u64 mask;
49 };
50 enum gpio_v2_line_attr_id {
51   GPIO_V2_LINE_ATTR_ID_FLAGS = 1,
52   GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES = 2,
53   GPIO_V2_LINE_ATTR_ID_DEBOUNCE = 3,
54 };
55 struct gpio_v2_line_attribute {
56   __u32 id;
57   __u32 padding;
58   union {
59     __aligned_u64 flags;
60     __aligned_u64 values;
61     __u32 debounce_period_us;
62   };
63 };
64 struct gpio_v2_line_config_attribute {
65   struct gpio_v2_line_attribute attr;
66   __aligned_u64 mask;
67 };
68 struct gpio_v2_line_config {
69   __aligned_u64 flags;
70   __u32 num_attrs;
71   __u32 padding[5];
72   struct gpio_v2_line_config_attribute attrs[GPIO_V2_LINE_NUM_ATTRS_MAX];
73 };
74 struct gpio_v2_line_request {
75   __u32 offsets[GPIO_V2_LINES_MAX];
76   char consumer[GPIO_MAX_NAME_SIZE];
77   struct gpio_v2_line_config config;
78   __u32 num_lines;
79   __u32 event_buffer_size;
80   __u32 padding[5];
81   __s32 fd;
82 };
83 struct gpio_v2_line_info {
84   char name[GPIO_MAX_NAME_SIZE];
85   char consumer[GPIO_MAX_NAME_SIZE];
86   __u32 offset;
87   __u32 num_attrs;
88   __aligned_u64 flags;
89   struct gpio_v2_line_attribute attrs[GPIO_V2_LINE_NUM_ATTRS_MAX];
90   __u32 padding[4];
91 };
92 enum gpio_v2_line_changed_type {
93   GPIO_V2_LINE_CHANGED_REQUESTED = 1,
94   GPIO_V2_LINE_CHANGED_RELEASED = 2,
95   GPIO_V2_LINE_CHANGED_CONFIG = 3,
96 };
97 struct gpio_v2_line_info_changed {
98   struct gpio_v2_line_info info;
99   __aligned_u64 timestamp_ns;
100   __u32 event_type;
101   __u32 padding[5];
102 };
103 enum gpio_v2_line_event_id {
104   GPIO_V2_LINE_EVENT_RISING_EDGE = 1,
105   GPIO_V2_LINE_EVENT_FALLING_EDGE = 2,
106 };
107 struct gpio_v2_line_event {
108   __aligned_u64 timestamp_ns;
109   __u32 id;
110   __u32 offset;
111   __u32 seqno;
112   __u32 line_seqno;
113   __u32 padding[6];
114 };
115 #define GPIOLINE_FLAG_KERNEL (1UL << 0)
116 #define GPIOLINE_FLAG_IS_OUT (1UL << 1)
117 #define GPIOLINE_FLAG_ACTIVE_LOW (1UL << 2)
118 #define GPIOLINE_FLAG_OPEN_DRAIN (1UL << 3)
119 #define GPIOLINE_FLAG_OPEN_SOURCE (1UL << 4)
120 #define GPIOLINE_FLAG_BIAS_PULL_UP (1UL << 5)
121 #define GPIOLINE_FLAG_BIAS_PULL_DOWN (1UL << 6)
122 #define GPIOLINE_FLAG_BIAS_DISABLE (1UL << 7)
123 struct gpioline_info {
124   __u32 line_offset;
125   __u32 flags;
126   char name[GPIO_MAX_NAME_SIZE];
127   char consumer[GPIO_MAX_NAME_SIZE];
128 };
129 #define GPIOHANDLES_MAX 64
130 enum {
131   GPIOLINE_CHANGED_REQUESTED = 1,
132   GPIOLINE_CHANGED_RELEASED,
133   GPIOLINE_CHANGED_CONFIG,
134 };
135 struct gpioline_info_changed {
136   struct gpioline_info info;
137   __u64 timestamp;
138   __u32 event_type;
139   __u32 padding[5];
140 };
141 #define GPIOHANDLE_REQUEST_INPUT (1UL << 0)
142 #define GPIOHANDLE_REQUEST_OUTPUT (1UL << 1)
143 #define GPIOHANDLE_REQUEST_ACTIVE_LOW (1UL << 2)
144 #define GPIOHANDLE_REQUEST_OPEN_DRAIN (1UL << 3)
145 #define GPIOHANDLE_REQUEST_OPEN_SOURCE (1UL << 4)
146 #define GPIOHANDLE_REQUEST_BIAS_PULL_UP (1UL << 5)
147 #define GPIOHANDLE_REQUEST_BIAS_PULL_DOWN (1UL << 6)
148 #define GPIOHANDLE_REQUEST_BIAS_DISABLE (1UL << 7)
149 struct gpiohandle_request {
150   __u32 lineoffsets[GPIOHANDLES_MAX];
151   __u32 flags;
152   __u8 default_values[GPIOHANDLES_MAX];
153   char consumer_label[GPIO_MAX_NAME_SIZE];
154   __u32 lines;
155   int fd;
156 };
157 struct gpiohandle_config {
158   __u32 flags;
159   __u8 default_values[GPIOHANDLES_MAX];
160   __u32 padding[4];
161 };
162 struct gpiohandle_data {
163   __u8 values[GPIOHANDLES_MAX];
164 };
165 #define GPIOEVENT_REQUEST_RISING_EDGE (1UL << 0)
166 #define GPIOEVENT_REQUEST_FALLING_EDGE (1UL << 1)
167 #define GPIOEVENT_REQUEST_BOTH_EDGES ((1UL << 0) | (1UL << 1))
168 struct gpioevent_request {
169   __u32 lineoffset;
170   __u32 handleflags;
171   __u32 eventflags;
172   char consumer_label[GPIO_MAX_NAME_SIZE];
173   int fd;
174 };
175 #define GPIOEVENT_EVENT_RISING_EDGE 0x01
176 #define GPIOEVENT_EVENT_FALLING_EDGE 0x02
177 struct gpioevent_data {
178   __u64 timestamp;
179   __u32 id;
180 };
181 #define GPIO_GET_CHIPINFO_IOCTL _IOR(0xB4, 0x01, struct gpiochip_info)
182 #define GPIO_GET_LINEINFO_UNWATCH_IOCTL _IOWR(0xB4, 0x0C, __u32)
183 #define GPIO_V2_GET_LINEINFO_IOCTL _IOWR(0xB4, 0x05, struct gpio_v2_line_info)
184 #define GPIO_V2_GET_LINEINFO_WATCH_IOCTL _IOWR(0xB4, 0x06, struct gpio_v2_line_info)
185 #define GPIO_V2_GET_LINE_IOCTL _IOWR(0xB4, 0x07, struct gpio_v2_line_request)
186 #define GPIO_V2_LINE_SET_CONFIG_IOCTL _IOWR(0xB4, 0x0D, struct gpio_v2_line_config)
187 #define GPIO_V2_LINE_GET_VALUES_IOCTL _IOWR(0xB4, 0x0E, struct gpio_v2_line_values)
188 #define GPIO_V2_LINE_SET_VALUES_IOCTL _IOWR(0xB4, 0x0F, struct gpio_v2_line_values)
189 #define GPIO_GET_LINEINFO_IOCTL _IOWR(0xB4, 0x02, struct gpioline_info)
190 #define GPIO_GET_LINEHANDLE_IOCTL _IOWR(0xB4, 0x03, struct gpiohandle_request)
191 #define GPIO_GET_LINEEVENT_IOCTL _IOWR(0xB4, 0x04, struct gpioevent_request)
192 #define GPIOHANDLE_GET_LINE_VALUES_IOCTL _IOWR(0xB4, 0x08, struct gpiohandle_data)
193 #define GPIOHANDLE_SET_LINE_VALUES_IOCTL _IOWR(0xB4, 0x09, struct gpiohandle_data)
194 #define GPIOHANDLE_SET_CONFIG_IOCTL _IOWR(0xB4, 0x0A, struct gpiohandle_config)
195 #define GPIO_GET_LINEINFO_WATCH_IOCTL _IOWR(0xB4, 0x0B, struct gpioline_info)
196 #endif
197