[media] rename most media/video usb drivers to media/usb

Rename all USB drivers with their own directory under
drivers/media/video into drivers/media/usb and update the
building system.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 0 insertions, 718 deletions

diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h
deleted file mode 100644
index 3764040475b..00000000000
--- a/drivers/media/video/uvc/uvcvideo.h
+++ /dev/null
@@ -1,718 +0,0 @@
-#ifndef _USB_VIDEO_H_
-#define _USB_VIDEO_H_
-
-#ifndef __KERNEL__
-#error "The uvcvideo.h header is deprecated, use linux/uvcvideo.h instead."
-#endif /* __KERNEL__ */
-
-#include <linux/kernel.h>
-#include <linux/poll.h>
-#include <linux/usb.h>
-#include <linux/usb/video.h>
-#include <linux/uvcvideo.h>
-#include <linux/videodev2.h>
-#include <media/media-device.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-event.h>
-#include <media/v4l2-fh.h>
-#include <media/videobuf2-core.h>
-
-/* --------------------------------------------------------------------------
- * UVC constants
- */
-
-#define UVC_TERM_INPUT			0x0000
-#define UVC_TERM_OUTPUT			0x8000
-#define UVC_TERM_DIRECTION(term)	((term)->type & 0x8000)
-
-#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) \
-	(UVC_ENTITY_IS_TERM(entity) && \
-	((entity)->type & 0x8000) == UVC_TERM_INPUT)
-#define UVC_ENTITY_IS_OTERM(entity) \
-	(UVC_ENTITY_IS_TERM(entity) && \
-	((entity)->type & 0x8000) == UVC_TERM_OUTPUT)
-
-
-/* ------------------------------------------------------------------------
- * 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}
-#define UVC_GUID_FORMAT_YUY2_ISIGHT \
-	{ 'Y',  'U',  'Y',  '2', 0x00, 0x00, 0x10, 0x00, \
-	 0x80, 0x00, 0x00, 0x00, 0x00, 0x38, 0x9b, 0x71}
-#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, \
-	 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, \
-	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
-#define UVC_GUID_FORMAT_Y16 \
-	{ 'Y',  '1',  '6',  ' ', 0x00, 0x00, 0x10, 0x00, \
-	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
-#define UVC_GUID_FORMAT_BY8 \
-	{ 'B',  'Y',  '8',  ' ', 0x00, 0x00, 0x10, 0x00, \
-	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
-#define UVC_GUID_FORMAT_RGBP \
-	{ 'R',  'G',  'B',  'P', 0x00, 0x00, 0x10, 0x00, \
-	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
-#define UVC_GUID_FORMAT_M420 \
-	{ 'M',  '4',  '2',  '0', 0x00, 0x00, 0x10, 0x00, \
-	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
-
-#define UVC_GUID_FORMAT_H264 \
-	{ 'H',  '2',  '6',  '4', 0x00, 0x00, 0x10, 0x00, \
-	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
-
-/* ------------------------------------------------------------------------
- * Driver specific constants.
- */
-
-#define DRIVER_VERSION		"1.1.1"
-
-/* Number of isochronous URBs. */
-#define UVC_URBS		5
-/* Maximum number of packets per URB. */
-#define UVC_MAX_PACKETS		32
-/* Maximum number of video buffers. */
-#define UVC_MAX_VIDEO_BUFFERS	32
-/* Maximum status buffer size in bytes of interrupt URB. */
-#define UVC_MAX_STATUS_SIZE	16
-
-#define UVC_CTRL_CONTROL_TIMEOUT	300
-#define UVC_CTRL_STREAMING_TIMEOUT	5000
-
-/* Maximum allowed number of control mappings per device */
-#define UVC_MAX_CONTROL_MAPPINGS	1024
-#define UVC_MAX_CONTROL_MENU_ENTRIES	32
-
-/* 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
-#define UVC_QUIRK_FIX_BANDWIDTH		0x00000080
-#define UVC_QUIRK_PROBE_DEF		0x00000100
-#define UVC_QUIRK_RESTRICT_FRAME_RATE	0x00000200
-
-/* 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];
-	__u8 index;	/* Bit index in bmControls */
-	__u8 selector;
-
-	__u16 size;
-	__u32 flags;
-};
-
-struct uvc_control_mapping {
-	struct list_head list;
-	struct list_head ev_subs;
-
-	__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;
-
-	__u32 master_id;
-	__s32 master_manual;
-	__u32 slave_ids[2];
-
-	__s32 (*get) (struct uvc_control_mapping *mapping, __u8 query,
-		      const __u8 *data);
-	void (*set) (struct uvc_control_mapping *mapping, __s32 value,
-		     __u8 *data);
-};
-
-struct uvc_control {
-	struct uvc_entity *entity;
-	struct uvc_control_info info;
-
-	__u8 index;	/* Used to match the uvc_control entry with a
-			   uvc_control_info. */
-	__u8 dirty:1,
-	     loaded:1,
-	     modified:1,
-	     cached:1,
-	     initialized:1;
-
-	__u8 *uvc_data;
-};
-
-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.
- */
-
-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. */
-	__u8 id;
-	__u16 type;
-	char name[64];
-
-	/* Media controller-related fields. */
-	struct video_device *vdev;
-	struct v4l2_subdev subdev;
-	unsigned int num_pads;
-	unsigned int num_links;
-	struct media_pad *pads;
-
-	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;
-	};
-
-	__u8 bNrInPins;
-	__u8 *baSourceID;
-
-	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 {
-	UVC_BUF_STATE_IDLE	= 0,
-	UVC_BUF_STATE_QUEUED	= 1,
-	UVC_BUF_STATE_ACTIVE	= 2,
-	UVC_BUF_STATE_READY	= 3,
-	UVC_BUF_STATE_DONE	= 4,
-	UVC_BUF_STATE_ERROR	= 5,
-};
-
-struct uvc_buffer {
-	struct vb2_buffer buf;
-	struct list_head queue;
-
-	enum uvc_buffer_state state;
-	unsigned int error;
-
-	void *mem;
-	unsigned int length;
-	unsigned int bytesused;
-
-	u32 pts;
-};
-
-#define UVC_QUEUE_DISCONNECTED		(1 << 0)
-#define UVC_QUEUE_DROP_CORRUPTED	(1 << 1)
-
-struct uvc_video_queue {
-	struct vb2_queue queue;
-	struct mutex mutex;			/* Protects queue */
-
-	unsigned int flags;
-	unsigned int buf_used;
-
-	spinlock_t irqlock;			/* Protects irqqueue */
-	struct list_head irqqueue;
-};
-
-struct uvc_video_chain {
-	struct uvc_device *dev;
-	struct list_head list;
-
-	struct list_head entities;		/* All entities */
-	struct uvc_entity *processing;		/* Processing unit */
-	struct uvc_entity *selector;		/* Selector unit */
-
-	struct mutex ctrl_mutex;		/* Protects ctrl.info */
-};
-
-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 */
-
-	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 */
-};
-
-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 */
-
-	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 */
-};
-
-struct uvc_streaming {
-	struct list_head list;
-	struct uvc_device *dev;
-	struct video_device *vdev;
-	struct uvc_video_chain *chain;
-	atomic_t active;
-
-	struct usb_interface *intf;
-	int intfnum;
-	__u16 maxpsize;
-
-	struct uvc_streaming_header header;
-	enum v4l2_buf_type type;
-
-	unsigned int nformats;
-	struct uvc_format *format;
-
-	struct uvc_streaming_control ctrl;
-	struct uvc_format *cur_format;
-	struct uvc_frame *cur_frame;
-	/* Protect access to ctrl, cur_format, cur_frame and hardware video
-	 * probe control.
-	 */
-	struct mutex mutex;
-
-	/* Buffers queue. */
-	unsigned int frozen : 1;
-	struct uvc_video_queue queue;
-	void (*decode) (struct urb *urb, struct uvc_streaming *video,
-			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];
-	dma_addr_t urb_dma[UVC_URBS];
-	unsigned int urb_size;
-
-	__u32 sequence;
-	__u8 last_fid;
-
-	/* debugfs */
-	struct dentry *debugfs_dir;
-	struct {
-		struct uvc_stats_frame frame;
-		struct uvc_stats_stream stream;
-	} stats;
-
-	/* 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;
-};
-
-enum uvc_device_state {
-	UVC_DEV_DISCONNECTED = 1,
-};
-
-struct uvc_device {
-	struct usb_device *udev;
-	struct usb_interface *intf;
-	unsigned long warnings;
-	__u32 quirks;
-	int intfnum;
-	char name[32];
-
-	enum uvc_device_state state;
-	atomic_t users;
-	atomic_t nmappings;
-
-	/* Video control interface */
-#ifdef CONFIG_MEDIA_CONTROLLER
-	struct media_device mdev;
-#endif
-	struct v4l2_device vdev;
-	__u16 uvc_version;
-	__u32 clock_frequency;
-
-	struct list_head entities;
-	struct list_head chains;
-
-	/* Video Streaming interfaces */
-	struct list_head streams;
-	atomic_t nstreams;
-
-	/* Status Interrupt Endpoint */
-	struct usb_host_endpoint *int_ep;
-	struct urb *int_urb;
-	__u8 *status;
-	struct input_dev *input;
-	char input_phys[64];
-};
-
-enum uvc_handle_state {
-	UVC_HANDLE_PASSIVE	= 0,
-	UVC_HANDLE_ACTIVE	= 1,
-};
-
-struct uvc_fh {
-	struct v4l2_fh vfh;
-	struct uvc_video_chain *chain;
-	struct uvc_streaming *stream;
-	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_IOCTL		(1 << 6)
-#define UVC_TRACE_FRAME		(1 << 7)
-#define UVC_TRACE_SUSPEND	(1 << 8)
-#define UVC_TRACE_STATUS	(1 << 9)
-#define UVC_TRACE_VIDEO		(1 << 10)
-#define UVC_TRACE_STATS		(1 << 11)
-#define UVC_TRACE_CLOCK		(1 << 12)
-
-#define UVC_WARN_MINMAX		0
-#define UVC_WARN_PROBE_DEF	1
-#define UVC_WARN_XU_GET_RES	2
-
-extern unsigned int uvc_clock_param;
-extern unsigned int uvc_no_drop_param;
-extern unsigned int uvc_trace_param;
-extern unsigned int uvc_timeout_param;
-
-#define uvc_trace(flag, msg...) \
-	do { \
-		if (uvc_trace_param & flag) \
-			printk(KERN_DEBUG "uvcvideo: " msg); \
-	} while (0)
-
-#define uvc_warn_once(dev, warn, msg...) \
-	do { \
-		if (!test_and_set_bit(warn, &dev->warnings)) \
-			printk(KERN_INFO "uvcvideo: " msg); \
-	} while (0)
-
-#define uvc_printk(level, msg...) \
-	printk(level "uvcvideo: " msg)
-
-/* --------------------------------------------------------------------------
- * Internal functions.
- */
-
-/* Core driver */
-extern struct uvc_driver uvc_driver;
-
-extern struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id);
-
-/* Video buffers queue management. */
-extern void uvc_queue_init(struct uvc_video_queue *queue,
-		enum v4l2_buf_type type, int drop_corrupted);
-extern int uvc_alloc_buffers(struct uvc_video_queue *queue,
-		struct v4l2_requestbuffers *rb);
-extern void uvc_free_buffers(struct uvc_video_queue *queue);
-extern int uvc_query_buffer(struct uvc_video_queue *queue,
-		struct v4l2_buffer *v4l2_buf);
-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);
-extern int uvc_queue_mmap(struct uvc_video_queue *queue,
-		struct vm_area_struct *vma);
-extern unsigned int uvc_queue_poll(struct uvc_video_queue *queue,
-		struct file *file, poll_table *wait);
-#ifndef CONFIG_MMU
-extern unsigned long uvc_queue_get_unmapped_area(struct uvc_video_queue *queue,
-		unsigned long pgoff);
-#endif
-extern int uvc_queue_allocated(struct uvc_video_queue *queue);
-static inline int uvc_queue_streaming(struct uvc_video_queue *queue)
-{
-	return vb2_is_streaming(&queue->queue);
-}
-
-/* V4L2 interface */
-extern const struct v4l2_file_operations uvc_fops;
-
-/* Media controller */
-extern int uvc_mc_register_entities(struct uvc_video_chain *chain);
-extern void uvc_mc_cleanup_entity(struct uvc_entity *entity);
-
-/* Video */
-extern int uvc_video_init(struct uvc_streaming *stream);
-extern int uvc_video_suspend(struct uvc_streaming *stream);
-extern int uvc_video_resume(struct uvc_streaming *stream, int reset);
-extern int uvc_video_enable(struct uvc_streaming *stream, int enable);
-extern int uvc_probe_video(struct uvc_streaming *stream,
-		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);
-void uvc_video_clock_update(struct uvc_streaming *stream,
-			    struct v4l2_buffer *v4l2_buf,
-			    struct uvc_buffer *buf);
-
-/* Status */
-extern int uvc_status_init(struct uvc_device *dev);
-extern void uvc_status_cleanup(struct uvc_device *dev);
-extern int uvc_status_start(struct uvc_device *dev);
-extern void uvc_status_stop(struct uvc_device *dev);
-extern int uvc_status_suspend(struct uvc_device *dev);
-extern int uvc_status_resume(struct uvc_device *dev);
-
-/* Controls */
-extern const struct v4l2_subscribed_event_ops uvc_ctrl_sub_ev_ops;
-
-extern int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain,
-		struct v4l2_queryctrl *v4l2_ctrl);
-extern int uvc_query_v4l2_menu(struct uvc_video_chain *chain,
-		struct v4l2_querymenu *query_menu);
-
-extern int uvc_ctrl_add_mapping(struct uvc_video_chain *chain,
-		const struct uvc_control_mapping *mapping);
-extern int uvc_ctrl_init_device(struct uvc_device *dev);
-extern void uvc_ctrl_cleanup_device(struct uvc_device *dev);
-extern int uvc_ctrl_resume_device(struct uvc_device *dev);
-
-extern int uvc_ctrl_begin(struct uvc_video_chain *chain);
-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)
-{
-	return __uvc_ctrl_commit(handle, 0, xctrls, xctrls_count);
-}
-static inline int uvc_ctrl_rollback(struct uvc_fh *handle)
-{
-	return __uvc_ctrl_commit(handle, 1, NULL, 0);
-}
-
-extern int uvc_ctrl_get(struct uvc_video_chain *chain,
-		struct v4l2_ext_control *xctrl);
-extern int uvc_ctrl_set(struct uvc_video_chain *chain,
-		struct v4l2_ext_control *xctrl);
-
-extern int uvc_xu_ctrl_query(struct uvc_video_chain *chain,
-		struct uvc_xu_control_query *xqry);
-
-/* 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 */
-void uvc_video_decode_isight(struct urb *urb, struct uvc_streaming *stream,
-		struct uvc_buffer *buf);
-
-/* debugfs and statistics */
-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);
-
-size_t uvc_video_stats_dump(struct uvc_streaming *stream, char *buf,
-			    size_t size);
-
-#endif