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 struct 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) 45 struct 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 }; 53 struct 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)) 61 struct 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 70 struct 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