| Greg Kroah-Hartman | 6f52b16 | 2017-11-01 15:08:43 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| Laurent Pinchart | 5f70881 | 2010-11-21 17:15:44 -0300 | [diff] [blame] | 2 | #ifndef __LINUX_UVCVIDEO_H_ |
| 3 | #define __LINUX_UVCVIDEO_H_ |
| 4 | |
| 5 | #include <linux/ioctl.h> |
| 6 | #include <linux/types.h> |
| 7 | |
| 8 | /* |
| 9 | * Dynamic controls |
| 10 | */ |
| 11 | |
| 12 | /* Data types for UVC control data */ |
| 13 | #define UVC_CTRL_DATA_TYPE_RAW 0 |
| 14 | #define UVC_CTRL_DATA_TYPE_SIGNED 1 |
| 15 | #define UVC_CTRL_DATA_TYPE_UNSIGNED 2 |
| 16 | #define UVC_CTRL_DATA_TYPE_BOOLEAN 3 |
| 17 | #define UVC_CTRL_DATA_TYPE_ENUM 4 |
| 18 | #define UVC_CTRL_DATA_TYPE_BITMASK 5 |
| 19 | |
| 20 | /* Control flags */ |
| 21 | #define UVC_CTRL_FLAG_SET_CUR (1 << 0) |
| 22 | #define UVC_CTRL_FLAG_GET_CUR (1 << 1) |
| 23 | #define UVC_CTRL_FLAG_GET_MIN (1 << 2) |
| 24 | #define UVC_CTRL_FLAG_GET_MAX (1 << 3) |
| 25 | #define UVC_CTRL_FLAG_GET_RES (1 << 4) |
| 26 | #define UVC_CTRL_FLAG_GET_DEF (1 << 5) |
| 27 | /* Control should be saved at suspend and restored at resume. */ |
| 28 | #define UVC_CTRL_FLAG_RESTORE (1 << 6) |
| 29 | /* Control can be updated by the camera. */ |
| 30 | #define UVC_CTRL_FLAG_AUTO_UPDATE (1 << 7) |
| 31 | |
| 32 | #define UVC_CTRL_FLAG_GET_RANGE \ |
| 33 | (UVC_CTRL_FLAG_GET_CUR | UVC_CTRL_FLAG_GET_MIN | \ |
| 34 | UVC_CTRL_FLAG_GET_MAX | UVC_CTRL_FLAG_GET_RES | \ |
| 35 | UVC_CTRL_FLAG_GET_DEF) |
| 36 | |
| 37 | struct uvc_menu_info { |
| 38 | __u32 value; |
| 39 | __u8 name[32]; |
| 40 | }; |
| 41 | |
| 42 | struct uvc_xu_control_mapping { |
| 43 | __u32 id; |
| 44 | __u8 name[32]; |
| 45 | __u8 entity[16]; |
| 46 | __u8 selector; |
| 47 | |
| 48 | __u8 size; |
| 49 | __u8 offset; |
| 50 | __u32 v4l2_type; |
| 51 | __u32 data_type; |
| 52 | |
| 53 | struct uvc_menu_info __user *menu_info; |
| 54 | __u32 menu_count; |
| 55 | |
| 56 | __u32 reserved[4]; |
| 57 | }; |
| 58 | |
| 59 | struct uvc_xu_control_query { |
| 60 | __u8 unit; |
| 61 | __u8 selector; |
| Laurent Pinchart | 7078daa | 2012-05-14 04:34:34 -0300 | [diff] [blame] | 62 | __u8 query; /* Video Class-Specific Request Code, */ |
| 63 | /* defined in linux/usb/video.h A.8. */ |
| Laurent Pinchart | 5f70881 | 2010-11-21 17:15:44 -0300 | [diff] [blame] | 64 | __u16 size; |
| 65 | __u8 __user *data; |
| 66 | }; |
| 67 | |
| 68 | #define UVCIOC_CTRL_MAP _IOWR('u', 0x20, struct uvc_xu_control_mapping) |
| 69 | #define UVCIOC_CTRL_QUERY _IOWR('u', 0x21, struct uvc_xu_control_query) |
| 70 | |
| Guennadi Liakhovetski | 088ead2 | 2017-12-06 10:15:40 -0500 | [diff] [blame] | 71 | /* |
| 72 | * Metadata node |
| 73 | */ |
| 74 | |
| 75 | /** |
| 76 | * struct uvc_meta_buf - metadata buffer building block |
| 77 | * @ns - system timestamp of the payload in nanoseconds |
| 78 | * @sof - USB Frame Number |
| 79 | * @length - length of the payload header |
| 80 | * @flags - payload header flags |
| 81 | * @buf - optional device-specific header data |
| 82 | * |
| 83 | * UVC metadata nodes fill buffers with possibly multiple instances of this |
| 84 | * struct. The first two fields are added by the driver, they can be used for |
| 85 | * clock synchronisation. The rest is an exact copy of a UVC payload header. |
| 86 | * Only complete objects with complete buffers are included. Therefore it's |
| 87 | * always sizeof(meta->ts) + sizeof(meta->sof) + meta->length bytes large. |
| 88 | */ |
| 89 | struct uvc_meta_buf { |
| 90 | __u64 ns; |
| 91 | __u16 sof; |
| 92 | __u8 length; |
| 93 | __u8 flags; |
| 94 | __u8 buf[]; |
| 95 | } __packed; |
| 96 | |
| Laurent Pinchart | 5f70881 | 2010-11-21 17:15:44 -0300 | [diff] [blame] | 97 | #endif |