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> 23 struct 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) 33 #define GPIOLINE_FLAG_BIAS_PULL_UP (1UL << 5) 34 #define GPIOLINE_FLAG_BIAS_PULL_DOWN (1UL << 6) 35 #define GPIOLINE_FLAG_BIAS_DISABLE (1UL << 7) 36 struct gpioline_info { 37 __u32 line_offset; 38 __u32 flags; 39 char name[32]; 40 char consumer[32]; 41 }; 42 #define GPIOHANDLES_MAX 64 43 #define GPIOHANDLE_REQUEST_INPUT (1UL << 0) 44 #define GPIOHANDLE_REQUEST_OUTPUT (1UL << 1) 45 #define GPIOHANDLE_REQUEST_ACTIVE_LOW (1UL << 2) 46 #define GPIOHANDLE_REQUEST_OPEN_DRAIN (1UL << 3) 47 #define GPIOHANDLE_REQUEST_OPEN_SOURCE (1UL << 4) 48 #define GPIOHANDLE_REQUEST_BIAS_PULL_UP (1UL << 5) 49 #define GPIOHANDLE_REQUEST_BIAS_PULL_DOWN (1UL << 6) 50 #define GPIOHANDLE_REQUEST_BIAS_DISABLE (1UL << 7) 51 struct gpiohandle_request { 52 __u32 lineoffsets[GPIOHANDLES_MAX]; 53 __u32 flags; 54 __u8 default_values[GPIOHANDLES_MAX]; 55 char consumer_label[32]; 56 __u32 lines; 57 int fd; 58 }; 59 struct gpiohandle_config { 60 __u32 flags; 61 __u8 default_values[GPIOHANDLES_MAX]; 62 __u32 padding[4]; 63 }; 64 #define GPIOHANDLE_SET_CONFIG_IOCTL _IOWR(0xB4, 0x0a, struct gpiohandle_config) 65 struct gpiohandle_data { 66 __u8 values[GPIOHANDLES_MAX]; 67 }; 68 #define GPIOHANDLE_GET_LINE_VALUES_IOCTL _IOWR(0xB4, 0x08, struct gpiohandle_data) 69 #define GPIOHANDLE_SET_LINE_VALUES_IOCTL _IOWR(0xB4, 0x09, struct gpiohandle_data) 70 #define GPIOEVENT_REQUEST_RISING_EDGE (1UL << 0) 71 #define GPIOEVENT_REQUEST_FALLING_EDGE (1UL << 1) 72 #define GPIOEVENT_REQUEST_BOTH_EDGES ((1UL << 0) | (1UL << 1)) 73 struct gpioevent_request { 74 __u32 lineoffset; 75 __u32 handleflags; 76 __u32 eventflags; 77 char consumer_label[32]; 78 int fd; 79 }; 80 #define GPIOEVENT_EVENT_RISING_EDGE 0x01 81 #define GPIOEVENT_EVENT_FALLING_EDGE 0x02 82 struct gpioevent_data { 83 __u64 timestamp; 84 __u32 id; 85 }; 86 #define GPIO_GET_CHIPINFO_IOCTL _IOR(0xB4, 0x01, struct gpiochip_info) 87 #define GPIO_GET_LINEINFO_IOCTL _IOWR(0xB4, 0x02, struct gpioline_info) 88 #define GPIO_GET_LINEHANDLE_IOCTL _IOWR(0xB4, 0x03, struct gpiohandle_request) 89 #define GPIO_GET_LINEEVENT_IOCTL _IOWR(0xB4, 0x04, struct gpioevent_request) 90 #endif 91