2008-06-30 18:04:50 +00:00
|
|
|
#ifndef _USB_VIDEO_H_
|
|
|
|
#define _USB_VIDEO_H_
|
|
|
|
|
2010-11-21 20:15:44 +00:00
|
|
|
#ifndef __KERNEL__
|
2011-07-30 19:19:49 +00:00
|
|
|
#error "The uvcvideo.h header is deprecated, use linux/uvcvideo.h instead."
|
|
|
|
#endif /* __KERNEL__ */
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2011-07-30 19:19:49 +00:00
|
|
|
#include <linux/kernel.h>
|
2008-06-30 18:04:50 +00:00
|
|
|
#include <linux/poll.h>
|
2010-01-21 08:39:52 +00:00
|
|
|
#include <linux/usb.h>
|
2009-06-26 15:15:38 +00:00
|
|
|
#include <linux/usb/video.h>
|
2010-11-21 20:15:44 +00:00
|
|
|
#include <linux/uvcvideo.h>
|
2011-07-30 19:19:49 +00:00
|
|
|
#include <linux/videodev2.h>
|
2010-01-21 08:39:47 +00:00
|
|
|
#include <media/media-device.h>
|
|
|
|
#include <media/v4l2-device.h>
|
2012-04-08 15:59:51 +00:00
|
|
|
#include <media/v4l2-event.h>
|
|
|
|
#include <media/v4l2-fh.h>
|
2011-10-24 14:53:59 +00:00
|
|
|
#include <media/videobuf2-core.h>
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
/* --------------------------------------------------------------------------
|
|
|
|
* UVC constants
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define UVC_TERM_INPUT 0x0000
|
|
|
|
#define UVC_TERM_OUTPUT 0x8000
|
2009-11-25 15:00:22 +00:00
|
|
|
#define UVC_TERM_DIRECTION(term) ((term)->type & 0x8000)
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
#define UVC_ENTITY_TYPE(entity) ((entity)->type & 0x7fff)
|
|
|
|
#define UVC_ENTITY_IS_UNIT(entity) (((entity)->type & 0xff00) == 0)
|
|
|
|
#define UVC_ENTITY_IS_TERM(entity) (((entity)->type & 0xff00) != 0)
|
|
|
|
#define UVC_ENTITY_IS_ITERM(entity) \
|
2009-07-01 23:24:47 +00:00
|
|
|
(UVC_ENTITY_IS_TERM(entity) && \
|
|
|
|
((entity)->type & 0x8000) == UVC_TERM_INPUT)
|
2008-06-30 18:04:50 +00:00
|
|
|
#define UVC_ENTITY_IS_OTERM(entity) \
|
2009-07-01 23:24:47 +00:00
|
|
|
(UVC_ENTITY_IS_TERM(entity) && \
|
|
|
|
((entity)->type & 0x8000) == UVC_TERM_OUTPUT)
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
|
|
|
|
/* ------------------------------------------------------------------------
|
|
|
|
* GUIDs
|
|
|
|
*/
|
|
|
|
#define UVC_GUID_UVC_CAMERA \
|
|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
|
|
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}
|
|
|
|
#define UVC_GUID_UVC_OUTPUT \
|
|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
|
|
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02}
|
|
|
|
#define UVC_GUID_UVC_MEDIA_TRANSPORT_INPUT \
|
|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
|
|
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03}
|
|
|
|
#define UVC_GUID_UVC_PROCESSING \
|
|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
|
|
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01}
|
|
|
|
#define UVC_GUID_UVC_SELECTOR \
|
|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
|
|
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02}
|
|
|
|
|
|
|
|
#define UVC_GUID_FORMAT_MJPEG \
|
|
|
|
{ 'M', 'J', 'P', 'G', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
|
|
|
#define UVC_GUID_FORMAT_YUY2 \
|
|
|
|
{ 'Y', 'U', 'Y', '2', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
2009-12-12 17:57:17 +00:00
|
|
|
#define UVC_GUID_FORMAT_YUY2_ISIGHT \
|
|
|
|
{ 'Y', 'U', 'Y', '2', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0x00, 0x00, 0x38, 0x9b, 0x71}
|
2008-06-30 18:04:50 +00:00
|
|
|
#define UVC_GUID_FORMAT_NV12 \
|
|
|
|
{ 'N', 'V', '1', '2', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
|
|
|
#define UVC_GUID_FORMAT_YV12 \
|
|
|
|
{ 'Y', 'V', '1', '2', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
|
|
|
#define UVC_GUID_FORMAT_I420 \
|
|
|
|
{ 'I', '4', '2', '0', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
|
|
|
#define UVC_GUID_FORMAT_UYVY \
|
|
|
|
{ 'U', 'Y', 'V', 'Y', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
|
|
|
#define UVC_GUID_FORMAT_Y800 \
|
|
|
|
{ 'Y', '8', '0', '0', 0x00, 0x00, 0x10, 0x00, \
|
2012-07-28 22:49:14 +00:00
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
|
|
|
#define UVC_GUID_FORMAT_Y8 \
|
|
|
|
{ 'Y', '8', ' ', ' ', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
|
|
|
#define UVC_GUID_FORMAT_Y10 \
|
|
|
|
{ 'Y', '1', '0', ' ', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
|
|
|
#define UVC_GUID_FORMAT_Y12 \
|
|
|
|
{ 'Y', '1', '2', ' ', 0x00, 0x00, 0x10, 0x00, \
|
2008-06-30 18:04:50 +00:00
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
2010-04-12 13:41:22 +00:00
|
|
|
#define UVC_GUID_FORMAT_Y16 \
|
|
|
|
{ 'Y', '1', '6', ' ', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
2008-06-30 18:04:50 +00:00
|
|
|
#define UVC_GUID_FORMAT_BY8 \
|
|
|
|
{ 'B', 'Y', '8', ' ', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
2014-02-20 07:12:51 +00:00
|
|
|
#define UVC_GUID_FORMAT_BA81 \
|
|
|
|
{ 'B', 'A', '8', '1', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
|
|
|
#define UVC_GUID_FORMAT_GBRG \
|
|
|
|
{ 'G', 'B', 'R', 'G', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
|
|
|
#define UVC_GUID_FORMAT_GRBG \
|
|
|
|
{ 'G', 'R', 'B', 'G', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
|
|
|
#define UVC_GUID_FORMAT_RGGB \
|
|
|
|
{ 'R', 'G', 'G', 'B', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
2011-03-06 11:32:04 +00:00
|
|
|
#define UVC_GUID_FORMAT_RGBP \
|
|
|
|
{ 'R', 'G', 'B', 'P', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
2011-05-11 12:56:20 +00:00
|
|
|
#define UVC_GUID_FORMAT_M420 \
|
|
|
|
{ 'M', '4', '2', '0', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2011-01-28 19:38:58 +00:00
|
|
|
#define UVC_GUID_FORMAT_H264 \
|
|
|
|
{ 'H', '2', '6', '4', 0x00, 0x00, 0x10, 0x00, \
|
|
|
|
0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
|
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
/* ------------------------------------------------------------------------
|
|
|
|
* Driver specific constants.
|
|
|
|
*/
|
|
|
|
|
2011-06-25 16:50:37 +00:00
|
|
|
#define DRIVER_VERSION "1.1.1"
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
/* Number of isochronous URBs. */
|
|
|
|
#define UVC_URBS 5
|
2009-01-18 20:46:30 +00:00
|
|
|
/* Maximum number of packets per URB. */
|
|
|
|
#define UVC_MAX_PACKETS 32
|
2008-09-16 06:32:20 +00:00
|
|
|
/* Maximum status buffer size in bytes of interrupt URB. */
|
|
|
|
#define UVC_MAX_STATUS_SIZE 16
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
#define UVC_CTRL_CONTROL_TIMEOUT 300
|
2010-01-19 11:59:21 +00:00
|
|
|
#define UVC_CTRL_STREAMING_TIMEOUT 5000
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2010-09-08 07:15:23 +00:00
|
|
|
/* Maximum allowed number of control mappings per device */
|
|
|
|
#define UVC_MAX_CONTROL_MAPPINGS 1024
|
2011-11-29 21:32:25 +00:00
|
|
|
#define UVC_MAX_CONTROL_MENU_ENTRIES 32
|
2010-09-08 07:15:23 +00:00
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
/* Devices quirks */
|
|
|
|
#define UVC_QUIRK_STATUS_INTERVAL 0x00000001
|
|
|
|
#define UVC_QUIRK_PROBE_MINMAX 0x00000002
|
|
|
|
#define UVC_QUIRK_PROBE_EXTRAFIELDS 0x00000004
|
|
|
|
#define UVC_QUIRK_BUILTIN_ISIGHT 0x00000008
|
|
|
|
#define UVC_QUIRK_STREAM_NO_FID 0x00000010
|
|
|
|
#define UVC_QUIRK_IGNORE_SELECTOR_UNIT 0x00000020
|
2009-02-16 20:41:52 +00:00
|
|
|
#define UVC_QUIRK_FIX_BANDWIDTH 0x00000080
|
2009-07-19 21:39:56 +00:00
|
|
|
#define UVC_QUIRK_PROBE_DEF 0x00000100
|
2010-09-16 15:37:26 +00:00
|
|
|
#define UVC_QUIRK_RESTRICT_FRAME_RATE 0x00000200
|
2014-03-13 12:38:48 +00:00
|
|
|
#define UVC_QUIRK_RESTORE_CTRLS_ON_INIT 0x00000400
|
2014-08-06 20:50:49 +00:00
|
|
|
#define UVC_QUIRK_FORCE_Y8 0x00000800
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
/* Format flags */
|
|
|
|
#define UVC_FMT_FLAG_COMPRESSED 0x00000001
|
|
|
|
#define UVC_FMT_FLAG_STREAM 0x00000002
|
|
|
|
|
|
|
|
/* ------------------------------------------------------------------------
|
|
|
|
* Structures.
|
|
|
|
*/
|
|
|
|
|
|
|
|
struct uvc_device;
|
|
|
|
|
|
|
|
/* TODO: Put the most frequently accessed fields at the beginning of
|
|
|
|
* structures to maximize cache efficiency.
|
|
|
|
*/
|
|
|
|
struct uvc_control_info {
|
|
|
|
struct list_head mappings;
|
|
|
|
|
|
|
|
__u8 entity[16];
|
2010-09-20 08:53:21 +00:00
|
|
|
__u8 index; /* Bit index in bmControls */
|
2008-06-30 18:04:50 +00:00
|
|
|
__u8 selector;
|
|
|
|
|
|
|
|
__u16 size;
|
|
|
|
__u32 flags;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct uvc_control_mapping {
|
|
|
|
struct list_head list;
|
2012-04-08 15:59:51 +00:00
|
|
|
struct list_head ev_subs;
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
__u32 id;
|
|
|
|
__u8 name[32];
|
|
|
|
__u8 entity[16];
|
|
|
|
__u8 selector;
|
|
|
|
|
|
|
|
__u8 size;
|
|
|
|
__u8 offset;
|
|
|
|
enum v4l2_ctrl_type v4l2_type;
|
|
|
|
__u32 data_type;
|
|
|
|
|
|
|
|
struct uvc_menu_info *menu_info;
|
|
|
|
__u32 menu_count;
|
2008-12-16 09:46:32 +00:00
|
|
|
|
2012-04-08 15:59:52 +00:00
|
|
|
__u32 master_id;
|
|
|
|
__s32 master_manual;
|
|
|
|
__u32 slave_ids[2];
|
|
|
|
|
2008-12-16 09:46:32 +00:00
|
|
|
__s32 (*get) (struct uvc_control_mapping *mapping, __u8 query,
|
|
|
|
const __u8 *data);
|
|
|
|
void (*set) (struct uvc_control_mapping *mapping, __s32 value,
|
|
|
|
__u8 *data);
|
2008-06-30 18:04:50 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
struct uvc_control {
|
|
|
|
struct uvc_entity *entity;
|
2010-09-29 19:00:08 +00:00
|
|
|
struct uvc_control_info info;
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
__u8 index; /* Used to match the uvc_control entry with a
|
|
|
|
uvc_control_info. */
|
2010-09-29 19:00:08 +00:00
|
|
|
__u8 dirty:1,
|
|
|
|
loaded:1,
|
|
|
|
modified:1,
|
|
|
|
cached:1,
|
|
|
|
initialized:1;
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2010-06-18 14:31:24 +00:00
|
|
|
__u8 *uvc_data;
|
2008-06-30 18:04:50 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
struct uvc_format_desc {
|
|
|
|
char *name;
|
|
|
|
__u8 guid[16];
|
|
|
|
__u32 fcc;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* The term 'entity' refers to both UVC units and UVC terminals.
|
|
|
|
*
|
|
|
|
* The type field is either the terminal type (wTerminalType in the terminal
|
|
|
|
* descriptor), or the unit type (bDescriptorSubtype in the unit descriptor).
|
|
|
|
* As the bDescriptorSubtype field is one byte long, the type value will
|
|
|
|
* always have a null MSB for units. All terminal types defined by the UVC
|
|
|
|
* specification have a non-null MSB, so it is safe to use the MSB to
|
|
|
|
* differentiate between units and terminals as long as the descriptor parsing
|
|
|
|
* code makes sure terminal types have a non-null MSB.
|
|
|
|
*
|
|
|
|
* For terminals, the type's most significant bit stores the terminal
|
|
|
|
* direction (either UVC_TERM_INPUT or UVC_TERM_OUTPUT). The type field should
|
|
|
|
* always be accessed with the UVC_ENTITY_* macros and never directly.
|
|
|
|
*/
|
|
|
|
|
2012-08-03 07:35:10 +00:00
|
|
|
#define UVC_ENTITY_FLAG_DEFAULT (1 << 0)
|
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
struct uvc_entity {
|
|
|
|
struct list_head list; /* Entity as part of a UVC device. */
|
|
|
|
struct list_head chain; /* Entity as part of a video device
|
|
|
|
* chain. */
|
2012-08-03 07:35:10 +00:00
|
|
|
unsigned int flags;
|
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
__u8 id;
|
|
|
|
__u16 type;
|
|
|
|
char name[64];
|
|
|
|
|
2010-01-21 08:39:52 +00:00
|
|
|
/* Media controller-related fields. */
|
2010-01-21 11:56:19 +00:00
|
|
|
struct video_device *vdev;
|
2010-01-21 08:39:52 +00:00
|
|
|
struct v4l2_subdev subdev;
|
|
|
|
unsigned int num_pads;
|
|
|
|
unsigned int num_links;
|
|
|
|
struct media_pad *pads;
|
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
union {
|
|
|
|
struct {
|
|
|
|
__u16 wObjectiveFocalLengthMin;
|
|
|
|
__u16 wObjectiveFocalLengthMax;
|
|
|
|
__u16 wOcularFocalLength;
|
|
|
|
__u8 bControlSize;
|
|
|
|
__u8 *bmControls;
|
|
|
|
} camera;
|
|
|
|
|
|
|
|
struct {
|
|
|
|
__u8 bControlSize;
|
|
|
|
__u8 *bmControls;
|
|
|
|
__u8 bTransportModeSize;
|
|
|
|
__u8 *bmTransportModes;
|
|
|
|
} media;
|
|
|
|
|
|
|
|
struct {
|
|
|
|
} output;
|
|
|
|
|
|
|
|
struct {
|
|
|
|
__u16 wMaxMultiplier;
|
|
|
|
__u8 bControlSize;
|
|
|
|
__u8 *bmControls;
|
|
|
|
__u8 bmVideoStandards;
|
|
|
|
} processing;
|
|
|
|
|
|
|
|
struct {
|
|
|
|
} selector;
|
|
|
|
|
|
|
|
struct {
|
|
|
|
__u8 guidExtensionCode[16];
|
|
|
|
__u8 bNumControls;
|
|
|
|
__u8 bControlSize;
|
|
|
|
__u8 *bmControls;
|
|
|
|
__u8 *bmControlsType;
|
|
|
|
} extension;
|
|
|
|
};
|
|
|
|
|
2009-11-25 15:00:30 +00:00
|
|
|
__u8 bNrInPins;
|
|
|
|
__u8 *baSourceID;
|
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
unsigned int ncontrols;
|
|
|
|
struct uvc_control *controls;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct uvc_frame {
|
|
|
|
__u8 bFrameIndex;
|
|
|
|
__u8 bmCapabilities;
|
|
|
|
__u16 wWidth;
|
|
|
|
__u16 wHeight;
|
|
|
|
__u32 dwMinBitRate;
|
|
|
|
__u32 dwMaxBitRate;
|
|
|
|
__u32 dwMaxVideoFrameBufferSize;
|
|
|
|
__u8 bFrameIntervalType;
|
|
|
|
__u32 dwDefaultFrameInterval;
|
|
|
|
__u32 *dwFrameInterval;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct uvc_format {
|
|
|
|
__u8 type;
|
|
|
|
__u8 index;
|
|
|
|
__u8 bpp;
|
|
|
|
__u8 colorspace;
|
|
|
|
__u32 fcc;
|
|
|
|
__u32 flags;
|
|
|
|
|
|
|
|
char name[32];
|
|
|
|
|
|
|
|
unsigned int nframes;
|
|
|
|
struct uvc_frame *frame;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct uvc_streaming_header {
|
|
|
|
__u8 bNumFormats;
|
|
|
|
__u8 bEndpointAddress;
|
|
|
|
__u8 bTerminalLink;
|
|
|
|
__u8 bControlSize;
|
|
|
|
__u8 *bmaControls;
|
|
|
|
/* The following fields are used by input headers only. */
|
|
|
|
__u8 bmInfo;
|
|
|
|
__u8 bStillCaptureMethod;
|
|
|
|
__u8 bTriggerSupport;
|
|
|
|
__u8 bTriggerUsage;
|
|
|
|
};
|
|
|
|
|
|
|
|
enum uvc_buffer_state {
|
2009-01-03 22:12:40 +00:00
|
|
|
UVC_BUF_STATE_IDLE = 0,
|
|
|
|
UVC_BUF_STATE_QUEUED = 1,
|
|
|
|
UVC_BUF_STATE_ACTIVE = 2,
|
2009-12-17 00:20:45 +00:00
|
|
|
UVC_BUF_STATE_READY = 3,
|
|
|
|
UVC_BUF_STATE_DONE = 4,
|
|
|
|
UVC_BUF_STATE_ERROR = 5,
|
2008-06-30 18:04:50 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
struct uvc_buffer {
|
2011-10-24 14:53:59 +00:00
|
|
|
struct vb2_buffer buf;
|
2008-06-30 18:04:50 +00:00
|
|
|
struct list_head queue;
|
2011-10-24 14:53:59 +00:00
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
enum uvc_buffer_state state;
|
2010-06-17 09:52:37 +00:00
|
|
|
unsigned int error;
|
2011-10-24 14:49:19 +00:00
|
|
|
|
|
|
|
void *mem;
|
|
|
|
unsigned int length;
|
|
|
|
unsigned int bytesused;
|
2011-09-24 13:46:55 +00:00
|
|
|
|
|
|
|
u32 pts;
|
2008-06-30 18:04:50 +00:00
|
|
|
};
|
|
|
|
|
2011-10-24 14:53:59 +00:00
|
|
|
#define UVC_QUEUE_DISCONNECTED (1 << 0)
|
|
|
|
#define UVC_QUEUE_DROP_CORRUPTED (1 << 1)
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
struct uvc_video_queue {
|
2011-10-24 14:53:59 +00:00
|
|
|
struct vb2_queue queue;
|
|
|
|
struct mutex mutex; /* Protects queue */
|
2008-12-29 01:32:29 +00:00
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
unsigned int flags;
|
2008-12-29 01:32:29 +00:00
|
|
|
unsigned int buf_used;
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2011-10-24 14:53:59 +00:00
|
|
|
spinlock_t irqlock; /* Protects irqqueue */
|
2008-06-30 18:04:50 +00:00
|
|
|
struct list_head irqqueue;
|
|
|
|
};
|
|
|
|
|
2009-07-01 23:24:47 +00:00
|
|
|
struct uvc_video_chain {
|
|
|
|
struct uvc_device *dev;
|
|
|
|
struct list_head list;
|
|
|
|
|
2009-11-25 15:00:22 +00:00
|
|
|
struct list_head entities; /* All entities */
|
2009-07-01 23:24:47 +00:00
|
|
|
struct uvc_entity *processing; /* Processing unit */
|
|
|
|
struct uvc_entity *selector; /* Selector unit */
|
|
|
|
|
2010-10-02 12:04:53 +00:00
|
|
|
struct mutex ctrl_mutex; /* Protects ctrl.info */
|
2012-08-28 21:38:58 +00:00
|
|
|
|
2012-08-28 23:29:56 +00:00
|
|
|
struct v4l2_prio_state prio; /* V4L2 priority state */
|
2012-08-28 21:38:58 +00:00
|
|
|
u32 caps; /* V4L2 chain-wide caps */
|
2009-07-01 23:24:47 +00:00
|
|
|
};
|
|
|
|
|
2011-11-03 14:40:08 +00:00
|
|
|
struct uvc_stats_frame {
|
|
|
|
unsigned int size; /* Number of bytes captured */
|
|
|
|
unsigned int first_data; /* Index of the first non-empty packet */
|
|
|
|
|
|
|
|
unsigned int nb_packets; /* Number of packets */
|
|
|
|
unsigned int nb_empty; /* Number of empty packets */
|
|
|
|
unsigned int nb_invalid; /* Number of packets with an invalid header */
|
|
|
|
unsigned int nb_errors; /* Number of packets with the error bit set */
|
2011-11-03 15:30:17 +00:00
|
|
|
|
|
|
|
unsigned int nb_pts; /* Number of packets with a PTS timestamp */
|
|
|
|
unsigned int nb_pts_diffs; /* Number of PTS differences inside a frame */
|
|
|
|
unsigned int last_pts_diff; /* Index of the last PTS difference */
|
|
|
|
bool has_initial_pts; /* Whether the first non-empty packet has a PTS */
|
|
|
|
bool has_early_pts; /* Whether a PTS is present before the first non-empty packet */
|
|
|
|
u32 pts; /* PTS of the last packet */
|
|
|
|
|
|
|
|
unsigned int nb_scr; /* Number of packets with a SCR timestamp */
|
|
|
|
unsigned int nb_scr_diffs; /* Number of SCR.STC differences inside a frame */
|
|
|
|
u16 scr_sof; /* SCR.SOF of the last packet */
|
|
|
|
u32 scr_stc; /* SCR.STC of the last packet */
|
2011-11-03 14:40:08 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
struct uvc_stats_stream {
|
|
|
|
struct timespec start_ts; /* Stream start timestamp */
|
|
|
|
struct timespec stop_ts; /* Stream stop timestamp */
|
|
|
|
|
|
|
|
unsigned int nb_frames; /* Number of frames */
|
|
|
|
|
|
|
|
unsigned int nb_packets; /* Number of packets */
|
|
|
|
unsigned int nb_empty; /* Number of empty packets */
|
|
|
|
unsigned int nb_invalid; /* Number of packets with an invalid header */
|
|
|
|
unsigned int nb_errors; /* Number of packets with the error bit set */
|
2011-11-03 15:30:17 +00:00
|
|
|
|
|
|
|
unsigned int nb_pts_constant; /* Number of frames with constant PTS */
|
|
|
|
unsigned int nb_pts_early; /* Number of frames with early PTS */
|
|
|
|
unsigned int nb_pts_initial; /* Number of frames with initial PTS */
|
|
|
|
|
|
|
|
unsigned int nb_scr_count_ok; /* Number of frames with at least one SCR per non empty packet */
|
|
|
|
unsigned int nb_scr_diffs_ok; /* Number of frames with varying SCR.STC */
|
|
|
|
unsigned int scr_sof_count; /* STC.SOF counter accumulated since stream start */
|
|
|
|
unsigned int scr_sof; /* STC.SOF of the last packet */
|
|
|
|
unsigned int min_sof; /* Minimum STC.SOF value */
|
|
|
|
unsigned int max_sof; /* Maximum STC.SOF value */
|
2011-11-03 14:40:08 +00:00
|
|
|
};
|
|
|
|
|
2009-06-28 11:37:50 +00:00
|
|
|
struct uvc_streaming {
|
|
|
|
struct list_head list;
|
2008-06-30 18:04:50 +00:00
|
|
|
struct uvc_device *dev;
|
|
|
|
struct video_device *vdev;
|
2009-07-01 23:24:47 +00:00
|
|
|
struct uvc_video_chain *chain;
|
2008-06-30 18:04:50 +00:00
|
|
|
atomic_t active;
|
|
|
|
|
2009-06-28 11:37:50 +00:00
|
|
|
struct usb_interface *intf;
|
|
|
|
int intfnum;
|
|
|
|
__u16 maxpsize;
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2009-06-28 11:37:50 +00:00
|
|
|
struct uvc_streaming_header header;
|
|
|
|
enum v4l2_buf_type type;
|
|
|
|
|
|
|
|
unsigned int nformats;
|
|
|
|
struct uvc_format *format;
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2009-06-28 11:37:50 +00:00
|
|
|
struct uvc_streaming_control ctrl;
|
2012-08-28 21:38:58 +00:00
|
|
|
struct uvc_format *def_format;
|
2009-06-28 11:37:50 +00:00
|
|
|
struct uvc_format *cur_format;
|
|
|
|
struct uvc_frame *cur_frame;
|
2014-09-09 07:42:43 +00:00
|
|
|
|
2010-11-21 16:36:34 +00:00
|
|
|
/* Protect access to ctrl, cur_format, cur_frame and hardware video
|
|
|
|
* probe control.
|
|
|
|
*/
|
2009-06-28 11:37:50 +00:00
|
|
|
struct mutex mutex;
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2011-10-24 14:53:59 +00:00
|
|
|
/* Buffers queue. */
|
2009-06-28 11:37:50 +00:00
|
|
|
unsigned int frozen : 1;
|
|
|
|
struct uvc_video_queue queue;
|
|
|
|
void (*decode) (struct urb *urb, struct uvc_streaming *video,
|
2008-06-30 18:04:50 +00:00
|
|
|
struct uvc_buffer *buf);
|
|
|
|
|
|
|
|
/* Context data used by the bulk completion handler. */
|
|
|
|
struct {
|
|
|
|
__u8 header[256];
|
|
|
|
unsigned int header_size;
|
|
|
|
int skip_payload;
|
|
|
|
__u32 payload_size;
|
|
|
|
__u32 max_payload_size;
|
|
|
|
} bulk;
|
|
|
|
|
|
|
|
struct urb *urb[UVC_URBS];
|
|
|
|
char *urb_buffer[UVC_URBS];
|
2008-07-04 03:36:21 +00:00
|
|
|
dma_addr_t urb_dma[UVC_URBS];
|
|
|
|
unsigned int urb_size;
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2010-10-02 14:06:05 +00:00
|
|
|
__u32 sequence;
|
2008-06-30 18:04:50 +00:00
|
|
|
__u8 last_fid;
|
2011-11-03 12:39:37 +00:00
|
|
|
|
|
|
|
/* debugfs */
|
|
|
|
struct dentry *debugfs_dir;
|
2011-11-03 14:40:08 +00:00
|
|
|
struct {
|
|
|
|
struct uvc_stats_frame frame;
|
|
|
|
struct uvc_stats_stream stream;
|
|
|
|
} stats;
|
2011-09-24 13:46:55 +00:00
|
|
|
|
|
|
|
/* Timestamps support. */
|
|
|
|
struct uvc_clock {
|
|
|
|
struct uvc_clock_sample {
|
|
|
|
u32 dev_stc;
|
|
|
|
u16 dev_sof;
|
|
|
|
struct timespec host_ts;
|
|
|
|
u16 host_sof;
|
|
|
|
} *samples;
|
|
|
|
|
|
|
|
unsigned int head;
|
|
|
|
unsigned int count;
|
|
|
|
unsigned int size;
|
|
|
|
|
|
|
|
u16 last_sof;
|
|
|
|
u16 sof_offset;
|
|
|
|
|
|
|
|
spinlock_t lock;
|
|
|
|
} clock;
|
2008-06-30 18:04:50 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
enum uvc_device_state {
|
|
|
|
UVC_DEV_DISCONNECTED = 1,
|
|
|
|
};
|
|
|
|
|
|
|
|
struct uvc_device {
|
|
|
|
struct usb_device *udev;
|
|
|
|
struct usb_interface *intf;
|
2008-11-08 22:14:50 +00:00
|
|
|
unsigned long warnings;
|
2008-06-30 18:04:50 +00:00
|
|
|
__u32 quirks;
|
|
|
|
int intfnum;
|
|
|
|
char name[32];
|
|
|
|
|
|
|
|
enum uvc_device_state state;
|
2013-04-26 01:28:51 +00:00
|
|
|
struct mutex lock; /* Protects users */
|
|
|
|
unsigned int users;
|
2010-09-08 07:15:23 +00:00
|
|
|
atomic_t nmappings;
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
/* Video control interface */
|
2010-01-21 08:39:47 +00:00
|
|
|
#ifdef CONFIG_MEDIA_CONTROLLER
|
|
|
|
struct media_device mdev;
|
|
|
|
#endif
|
|
|
|
struct v4l2_device vdev;
|
2008-06-30 18:04:50 +00:00
|
|
|
__u16 uvc_version;
|
|
|
|
__u32 clock_frequency;
|
|
|
|
|
|
|
|
struct list_head entities;
|
2009-07-01 23:24:47 +00:00
|
|
|
struct list_head chains;
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2009-06-28 11:37:50 +00:00
|
|
|
/* Video Streaming interfaces */
|
|
|
|
struct list_head streams;
|
2009-09-30 00:07:19 +00:00
|
|
|
atomic_t nstreams;
|
2009-06-28 11:37:50 +00:00
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
/* Status Interrupt Endpoint */
|
|
|
|
struct usb_host_endpoint *int_ep;
|
|
|
|
struct urb *int_urb;
|
2008-09-16 06:32:20 +00:00
|
|
|
__u8 *status;
|
2008-06-30 18:04:50 +00:00
|
|
|
struct input_dev *input;
|
2009-01-22 15:45:10 +00:00
|
|
|
char input_phys[64];
|
2008-06-30 18:04:50 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
enum uvc_handle_state {
|
|
|
|
UVC_HANDLE_PASSIVE = 0,
|
|
|
|
UVC_HANDLE_ACTIVE = 1,
|
|
|
|
};
|
|
|
|
|
|
|
|
struct uvc_fh {
|
2012-04-08 15:59:51 +00:00
|
|
|
struct v4l2_fh vfh;
|
2009-07-01 23:24:47 +00:00
|
|
|
struct uvc_video_chain *chain;
|
2009-06-28 11:37:50 +00:00
|
|
|
struct uvc_streaming *stream;
|
2008-06-30 18:04:50 +00:00
|
|
|
enum uvc_handle_state state;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct uvc_driver {
|
|
|
|
struct usb_driver driver;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* ------------------------------------------------------------------------
|
|
|
|
* Debugging, printing and logging
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define UVC_TRACE_PROBE (1 << 0)
|
|
|
|
#define UVC_TRACE_DESCR (1 << 1)
|
|
|
|
#define UVC_TRACE_CONTROL (1 << 2)
|
|
|
|
#define UVC_TRACE_FORMAT (1 << 3)
|
|
|
|
#define UVC_TRACE_CAPTURE (1 << 4)
|
|
|
|
#define UVC_TRACE_CALLS (1 << 5)
|
|
|
|
#define UVC_TRACE_FRAME (1 << 7)
|
|
|
|
#define UVC_TRACE_SUSPEND (1 << 8)
|
|
|
|
#define UVC_TRACE_STATUS (1 << 9)
|
2009-08-06 14:41:17 +00:00
|
|
|
#define UVC_TRACE_VIDEO (1 << 10)
|
2011-11-03 14:40:08 +00:00
|
|
|
#define UVC_TRACE_STATS (1 << 11)
|
2011-09-24 13:46:55 +00:00
|
|
|
#define UVC_TRACE_CLOCK (1 << 12)
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2008-11-08 22:14:50 +00:00
|
|
|
#define UVC_WARN_MINMAX 0
|
|
|
|
#define UVC_WARN_PROBE_DEF 1
|
2010-09-30 12:04:03 +00:00
|
|
|
#define UVC_WARN_XU_GET_RES 2
|
2008-11-08 22:14:50 +00:00
|
|
|
|
2009-12-10 01:57:48 +00:00
|
|
|
extern unsigned int uvc_clock_param;
|
2008-12-06 19:25:14 +00:00
|
|
|
extern unsigned int uvc_no_drop_param;
|
2008-06-30 18:04:50 +00:00
|
|
|
extern unsigned int uvc_trace_param;
|
2009-10-09 23:55:23 +00:00
|
|
|
extern unsigned int uvc_timeout_param;
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
#define uvc_trace(flag, msg...) \
|
|
|
|
do { \
|
|
|
|
if (uvc_trace_param & flag) \
|
|
|
|
printk(KERN_DEBUG "uvcvideo: " msg); \
|
|
|
|
} while (0)
|
|
|
|
|
2008-11-08 22:14:50 +00:00
|
|
|
#define uvc_warn_once(dev, warn, msg...) \
|
|
|
|
do { \
|
|
|
|
if (!test_and_set_bit(warn, &dev->warnings)) \
|
|
|
|
printk(KERN_INFO "uvcvideo: " msg); \
|
|
|
|
} while (0)
|
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
#define uvc_printk(level, msg...) \
|
|
|
|
printk(level "uvcvideo: " msg)
|
|
|
|
|
|
|
|
/* --------------------------------------------------------------------------
|
|
|
|
* Internal functions.
|
|
|
|
*/
|
|
|
|
|
|
|
|
/* Core driver */
|
|
|
|
extern struct uvc_driver uvc_driver;
|
|
|
|
|
2010-01-21 08:39:52 +00:00
|
|
|
extern struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id);
|
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
/* Video buffers queue management. */
|
2012-09-26 10:30:34 +00:00
|
|
|
extern int uvc_queue_init(struct uvc_video_queue *queue,
|
2010-06-17 09:52:37 +00:00
|
|
|
enum v4l2_buf_type type, int drop_corrupted);
|
2008-06-30 18:04:50 +00:00
|
|
|
extern int uvc_alloc_buffers(struct uvc_video_queue *queue,
|
2011-10-24 14:53:59 +00:00
|
|
|
struct v4l2_requestbuffers *rb);
|
|
|
|
extern void uvc_free_buffers(struct uvc_video_queue *queue);
|
2008-06-30 18:04:50 +00:00
|
|
|
extern int uvc_query_buffer(struct uvc_video_queue *queue,
|
|
|
|
struct v4l2_buffer *v4l2_buf);
|
2014-01-29 16:13:52 +00:00
|
|
|
extern int uvc_create_buffers(struct uvc_video_queue *queue,
|
|
|
|
struct v4l2_create_buffers *v4l2_cb);
|
2008-06-30 18:04:50 +00:00
|
|
|
extern int uvc_queue_buffer(struct uvc_video_queue *queue,
|
|
|
|
struct v4l2_buffer *v4l2_buf);
|
|
|
|
extern int uvc_dequeue_buffer(struct uvc_video_queue *queue,
|
|
|
|
struct v4l2_buffer *v4l2_buf, int nonblocking);
|
|
|
|
extern int uvc_queue_enable(struct uvc_video_queue *queue, int enable);
|
|
|
|
extern void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect);
|
|
|
|
extern struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
|
|
|
|
struct uvc_buffer *buf);
|
2010-11-21 18:18:08 +00:00
|
|
|
extern int uvc_queue_mmap(struct uvc_video_queue *queue,
|
|
|
|
struct vm_area_struct *vma);
|
2008-06-30 18:04:50 +00:00
|
|
|
extern unsigned int uvc_queue_poll(struct uvc_video_queue *queue,
|
|
|
|
struct file *file, poll_table *wait);
|
2011-04-29 10:11:35 +00:00
|
|
|
#ifndef CONFIG_MMU
|
|
|
|
extern unsigned long uvc_queue_get_unmapped_area(struct uvc_video_queue *queue,
|
|
|
|
unsigned long pgoff);
|
|
|
|
#endif
|
2009-06-04 12:26:39 +00:00
|
|
|
extern int uvc_queue_allocated(struct uvc_video_queue *queue);
|
2008-06-30 18:04:50 +00:00
|
|
|
static inline int uvc_queue_streaming(struct uvc_video_queue *queue)
|
|
|
|
{
|
2011-10-24 14:53:59 +00:00
|
|
|
return vb2_is_streaming(&queue->queue);
|
2008-06-30 18:04:50 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* V4L2 interface */
|
2010-09-30 13:17:54 +00:00
|
|
|
extern const struct v4l2_ioctl_ops uvc_ioctl_ops;
|
2008-12-30 09:58:20 +00:00
|
|
|
extern const struct v4l2_file_operations uvc_fops;
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2010-01-21 08:39:52 +00:00
|
|
|
/* Media controller */
|
|
|
|
extern int uvc_mc_register_entities(struct uvc_video_chain *chain);
|
|
|
|
extern void uvc_mc_cleanup_entity(struct uvc_entity *entity);
|
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
/* Video */
|
2009-06-28 11:37:50 +00:00
|
|
|
extern int uvc_video_init(struct uvc_streaming *stream);
|
|
|
|
extern int uvc_video_suspend(struct uvc_streaming *stream);
|
2011-07-16 03:51:00 +00:00
|
|
|
extern int uvc_video_resume(struct uvc_streaming *stream, int reset);
|
2009-06-28 11:37:50 +00:00
|
|
|
extern int uvc_video_enable(struct uvc_streaming *stream, int enable);
|
|
|
|
extern int uvc_probe_video(struct uvc_streaming *stream,
|
2008-06-30 18:04:50 +00:00
|
|
|
struct uvc_streaming_control *probe);
|
|
|
|
extern int uvc_query_ctrl(struct uvc_device *dev, __u8 query, __u8 unit,
|
|
|
|
__u8 intfnum, __u8 cs, void *data, __u16 size);
|
2011-09-24 13:46:55 +00:00
|
|
|
void uvc_video_clock_update(struct uvc_streaming *stream,
|
|
|
|
struct v4l2_buffer *v4l2_buf,
|
|
|
|
struct uvc_buffer *buf);
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
/* Status */
|
|
|
|
extern int uvc_status_init(struct uvc_device *dev);
|
|
|
|
extern void uvc_status_cleanup(struct uvc_device *dev);
|
2013-04-26 01:28:51 +00:00
|
|
|
extern int uvc_status_start(struct uvc_device *dev, gfp_t flags);
|
2009-05-19 13:08:03 +00:00
|
|
|
extern void uvc_status_stop(struct uvc_device *dev);
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
/* Controls */
|
2012-04-08 15:59:51 +00:00
|
|
|
extern const struct v4l2_subscribed_event_ops uvc_ctrl_sub_ev_ops;
|
|
|
|
|
2009-07-01 23:24:47 +00:00
|
|
|
extern int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain,
|
2008-06-30 18:04:50 +00:00
|
|
|
struct v4l2_queryctrl *v4l2_ctrl);
|
2010-11-21 10:58:54 +00:00
|
|
|
extern int uvc_query_v4l2_menu(struct uvc_video_chain *chain,
|
|
|
|
struct v4l2_querymenu *query_menu);
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2010-09-20 08:53:21 +00:00
|
|
|
extern int uvc_ctrl_add_mapping(struct uvc_video_chain *chain,
|
|
|
|
const struct uvc_control_mapping *mapping);
|
2008-06-30 18:04:50 +00:00
|
|
|
extern int uvc_ctrl_init_device(struct uvc_device *dev);
|
|
|
|
extern void uvc_ctrl_cleanup_device(struct uvc_device *dev);
|
2014-03-13 12:38:48 +00:00
|
|
|
extern int uvc_ctrl_restore_values(struct uvc_device *dev);
|
2008-06-30 18:04:50 +00:00
|
|
|
|
2009-07-01 23:24:47 +00:00
|
|
|
extern int uvc_ctrl_begin(struct uvc_video_chain *chain);
|
2012-04-08 15:59:51 +00:00
|
|
|
extern int __uvc_ctrl_commit(struct uvc_fh *handle, int rollback,
|
|
|
|
const struct v4l2_ext_control *xctrls,
|
|
|
|
unsigned int xctrls_count);
|
|
|
|
static inline int uvc_ctrl_commit(struct uvc_fh *handle,
|
|
|
|
const struct v4l2_ext_control *xctrls,
|
|
|
|
unsigned int xctrls_count)
|
2008-06-30 18:04:50 +00:00
|
|
|
{
|
2012-04-08 15:59:51 +00:00
|
|
|
return __uvc_ctrl_commit(handle, 0, xctrls, xctrls_count);
|
2008-06-30 18:04:50 +00:00
|
|
|
}
|
2012-04-08 15:59:51 +00:00
|
|
|
static inline int uvc_ctrl_rollback(struct uvc_fh *handle)
|
2008-06-30 18:04:50 +00:00
|
|
|
{
|
2012-04-08 15:59:51 +00:00
|
|
|
return __uvc_ctrl_commit(handle, 1, NULL, 0);
|
2008-06-30 18:04:50 +00:00
|
|
|
}
|
|
|
|
|
2009-07-01 23:24:47 +00:00
|
|
|
extern int uvc_ctrl_get(struct uvc_video_chain *chain,
|
2008-06-30 18:04:50 +00:00
|
|
|
struct v4l2_ext_control *xctrl);
|
2009-07-01 23:24:47 +00:00
|
|
|
extern int uvc_ctrl_set(struct uvc_video_chain *chain,
|
2008-06-30 18:04:50 +00:00
|
|
|
struct v4l2_ext_control *xctrl);
|
|
|
|
|
2009-07-01 23:24:47 +00:00
|
|
|
extern int uvc_xu_ctrl_query(struct uvc_video_chain *chain,
|
2010-10-02 22:10:16 +00:00
|
|
|
struct uvc_xu_control_query *xqry);
|
2008-06-30 18:04:50 +00:00
|
|
|
|
|
|
|
/* Utility functions */
|
|
|
|
extern void uvc_simplify_fraction(uint32_t *numerator, uint32_t *denominator,
|
|
|
|
unsigned int n_terms, unsigned int threshold);
|
|
|
|
extern uint32_t uvc_fraction_to_interval(uint32_t numerator,
|
|
|
|
uint32_t denominator);
|
|
|
|
extern struct usb_host_endpoint *uvc_find_endpoint(
|
|
|
|
struct usb_host_interface *alts, __u8 epaddr);
|
|
|
|
|
|
|
|
/* Quirks support */
|
2009-06-28 11:37:50 +00:00
|
|
|
void uvc_video_decode_isight(struct urb *urb, struct uvc_streaming *stream,
|
2008-06-30 18:04:50 +00:00
|
|
|
struct uvc_buffer *buf);
|
|
|
|
|
2011-11-03 14:40:08 +00:00
|
|
|
/* debugfs and statistics */
|
2011-11-03 12:39:37 +00:00
|
|
|
int uvc_debugfs_init(void);
|
|
|
|
void uvc_debugfs_cleanup(void);
|
|
|
|
int uvc_debugfs_init_stream(struct uvc_streaming *stream);
|
|
|
|
void uvc_debugfs_cleanup_stream(struct uvc_streaming *stream);
|
|
|
|
|
2011-11-03 14:40:08 +00:00
|
|
|
size_t uvc_video_stats_dump(struct uvc_streaming *stream, char *buf,
|
|
|
|
size_t size);
|
|
|
|
|
2008-06-30 18:04:50 +00:00
|
|
|
#endif
|