Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "The first part of the media updates for Kernel 3.7.

  This series contain:

   - A major tree renaming patch series: now, drivers are organized
     internally by their used bus, instead of by V4L2 and/or DVB API,
     providing a cleaner driver location for hybrid drivers that
     implement both APIs, and allowing to cleanup the Kconfig items and
     make them more intuitive for the end user;

   - Media Kernel developers are typically very lazy with their duties
     of keeping the MAINTAINERS entries for their drivers updated.  As
     now the tree is more organized, we're doing an effort to add/update
     those entries for the drivers that aren't currently orphan;

   - Several DVB USB drivers got moved to a new DVB USB v2 core; the new
     core fixes several bugs (as the existing one that got bitroted).
     Now, suspend/resume finally started to work fine (at least with
     some devices - we should expect more work with regards to it);

   - added multistream support for DVB-T2, and unified the API for
     DVB-S2 and ISDB-S.  Backward binary support is preserved;

   - as usual, a few new drivers, some V4L2 core improvements and lots
     of drivers improvements and fixes.

  There are some points to notice on this series:

   1) you should expect a trivial merge conflict on your tree, with the
      removal of Documentation/feature-removal-schedule.txt: this series
      would be adding two additional entries there.  I opted to not
      rebase it due to this recent change;

   2) With regards to the PCTV 520e udev-related breakage, I opted to
      fix it in a way that the patches can be backported to 3.5 even
      without your firmware fix patch.  This way, Greg doesn't need to
      rush backporting your patch (as there are still the firmware cache
      and firmware path customization issues to be addressed there).

      I'll send later a patch (likely after the end of the merge window)
      reverting the rest of the DRX-K async firmware request, fully
      restoring its original behaviour to allow media drivers to
      initialize everything serialized as before for 3.7 and upper.

   3) I'm planning to work on this weekend to test the DMABUF patches
      for V4L2.  The patches are on my queue for several Kernel cycles,
      but, up to now, there is/was no way to test the series locally.

      I have some concerns about this particular changeset with regards
      to security issues, and with regards to the replacement of the old
      VIDIOC_OVERLAY ioctl's that is broken on modern systems, due to
      GPU drivers change.  The Overlay API allows direct PCI2PCI
      transfers from a media capture card into the GPU framebuffer, but
      its API is crappy.  Also, the only existing X11 driver that
      implements it requires a XV extension that is not available
      anymore on modern drivers.  The DMABUF can do the same thing, but
      with it is promising to be a properly-designed API.  If I can
      successfully test this series and be happy with it, I should be
      asking you to pull them next week."

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (717 commits)
  em28xx: regression fix: use DRX-K sync firmware requests on em28xx
  drxk: allow loading firmware synchrousnously
  em28xx: Make all em28xx extensions to be initialized asynchronously
  [media] tda18271: properly report read errors in tda18271_get_id
  [media] tda18271: delay IR & RF calibration until init() if delay_cal is set
  [media] MAINTAINERS: add Michael Krufky as tda827x maintainer
  [media] MAINTAINERS: add Michael Krufky as tda8290 maintainer
  [media] MAINTAINERS: add Michael Krufky as cxusb maintainer
  [media] MAINTAINERS: add Michael Krufky as lg2160 maintainer
  [media] MAINTAINERS: add Michael Krufky as lgdt3305 maintainer
  [media] MAINTAINERS: add Michael Krufky as mxl111sf maintainer
  [media] MAINTAINERS: add Michael Krufky as mxl5007t maintainer
  [media] MAINTAINERS: add Michael Krufky as tda18271 maintainer
  [media] s5p-tv: Report only multi-plane capabilities in vidioc_querycap
  [media] s5p-mfc: Fix misplaced return statement in s5p_mfc_suspend()
  [media] exynos-gsc: Add missing static storage class specifiers
  [media] exynos-gsc: Remove <linux/version.h> header file inclusion
  [media] s5p-fimc: Fix incorrect condition in fimc_lite_reqbufs()
  [media] s5p-tv: Fix potential NULL pointer dereference error
  [media] s5k6aa: Fix possible NULL pointer dereference
  ...

1 files changed, 535 insertions, 0 deletions

diff --git a/drivers/media/usb/usbvision/usbvision.h b/drivers/media/usb/usbvision/usbvision.h
new file mode 100644
index 00000000000..43cf61fe494
--- /dev/null
+++ b/drivers/media/usb/usbvision/usbvision.h
@@ -0,0 +1,535 @@
+/*
+ * USBVISION.H
+ *  usbvision header file
+ *
+ * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
+ *                         Dwaine Garden <dwainegarden@rogers.com>
+ *
+ *
+ * Report problems to v4l MailingList: linux-media@vger.kernel.org
+ *
+ * This module is part of usbvision driver project.
+ * Updates to driver completed by Dwaine P. Garden
+ * v4l2 conversion by Thierry Merle <thierry.merle@free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#ifndef __LINUX_USBVISION_H
+#define __LINUX_USBVISION_H
+
+#include <linux/list.h>
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <media/v4l2-device.h>
+#include <media/tuner.h>
+#include <linux/videodev2.h>
+
+#define USBVISION_DEBUG		/* Turn on debug messages */
+
+#define USBVISION_PWR_REG		0x00
+	#define USBVISION_SSPND_EN		(1 << 1)
+	#define USBVISION_RES2			(1 << 2)
+	#define USBVISION_PWR_VID		(1 << 5)
+	#define USBVISION_E2_EN			(1 << 7)
+#define USBVISION_CONFIG_REG		0x01
+#define USBVISION_ADRS_REG		0x02
+#define USBVISION_ALTER_REG		0x03
+#define USBVISION_FORCE_ALTER_REG	0x04
+#define USBVISION_STATUS_REG		0x05
+#define USBVISION_IOPIN_REG		0x06
+	#define USBVISION_IO_1			(1 << 0)
+	#define USBVISION_IO_2			(1 << 1)
+	#define USBVISION_AUDIO_IN		0
+	#define USBVISION_AUDIO_TV		1
+	#define USBVISION_AUDIO_RADIO		2
+	#define USBVISION_AUDIO_MUTE		3
+#define USBVISION_SER_MODE		0x07
+	#define USBVISION_CLK_OUT		(1 << 0)
+	#define USBVISION_DAT_IO		(1 << 1)
+	#define USBVISION_SENS_OUT		(1 << 2)
+	#define USBVISION_SER_MODE_SOFT		(0 << 4)
+	#define USBVISION_SER_MODE_SIO		(1 << 4)
+#define USBVISION_SER_ADRS		0x08
+#define USBVISION_SER_CONT		0x09
+#define USBVISION_SER_DAT1		0x0A
+#define USBVISION_SER_DAT2		0x0B
+#define USBVISION_SER_DAT3		0x0C
+#define USBVISION_SER_DAT4		0x0D
+#define USBVISION_EE_DATA		0x0E
+#define USBVISION_EE_LSBAD		0x0F
+#define USBVISION_EE_CONT		0x10
+#define USBVISION_DRM_CONT			0x12
+	#define USBVISION_REF			(1 << 0)
+	#define USBVISION_RES_UR		(1 << 2)
+	#define USBVISION_RES_FDL		(1 << 3)
+	#define USBVISION_RES_VDW		(1 << 4)
+#define USBVISION_DRM_PRM1		0x13
+#define USBVISION_DRM_PRM2		0x14
+#define USBVISION_DRM_PRM3		0x15
+#define USBVISION_DRM_PRM4		0x16
+#define USBVISION_DRM_PRM5		0x17
+#define USBVISION_DRM_PRM6		0x18
+#define USBVISION_DRM_PRM7		0x19
+#define USBVISION_DRM_PRM8		0x1A
+#define USBVISION_VIN_REG1		0x1B
+	#define USBVISION_8_422_SYNC		0x01
+	#define USBVISION_16_422_SYNC		0x02
+	#define USBVISION_VSNC_POL		(1 << 3)
+	#define USBVISION_HSNC_POL		(1 << 4)
+	#define USBVISION_FID_POL		(1 << 5)
+	#define USBVISION_HVALID_PO		(1 << 6)
+	#define USBVISION_VCLK_POL		(1 << 7)
+#define USBVISION_VIN_REG2		0x1C
+	#define USBVISION_AUTO_FID		(1 << 0)
+	#define USBVISION_NONE_INTER		(1 << 1)
+	#define USBVISION_NOHVALID		(1 << 2)
+	#define USBVISION_UV_ID			(1 << 3)
+	#define USBVISION_FIX_2C		(1 << 4)
+	#define USBVISION_SEND_FID		(1 << 5)
+	#define USBVISION_KEEP_BLANK		(1 << 7)
+#define USBVISION_LXSIZE_I		0x1D
+#define USBVISION_MXSIZE_I		0x1E
+#define USBVISION_LYSIZE_I		0x1F
+#define USBVISION_MYSIZE_I		0x20
+#define USBVISION_LX_OFFST		0x21
+#define USBVISION_MX_OFFST		0x22
+#define USBVISION_LY_OFFST		0x23
+#define USBVISION_MY_OFFST		0x24
+#define USBVISION_FRM_RATE		0x25
+#define USBVISION_LXSIZE_O		0x26
+#define USBVISION_MXSIZE_O		0x27
+#define USBVISION_LYSIZE_O		0x28
+#define USBVISION_MYSIZE_O		0x29
+#define USBVISION_FILT_CONT		0x2A
+#define USBVISION_VO_MODE		0x2B
+#define USBVISION_INTRA_CYC		0x2C
+#define USBVISION_STRIP_SZ		0x2D
+#define USBVISION_FORCE_INTRA		0x2E
+#define USBVISION_FORCE_UP		0x2F
+#define USBVISION_BUF_THR		0x30
+#define USBVISION_DVI_YUV		0x31
+#define USBVISION_AUDIO_CONT		0x32
+#define USBVISION_AUD_PK_LEN		0x33
+#define USBVISION_BLK_PK_LEN		0x34
+#define USBVISION_PCM_THR1		0x38
+#define USBVISION_PCM_THR2		0x39
+#define USBVISION_DIST_THR_L		0x3A
+#define USBVISION_DIST_THR_H		0x3B
+#define USBVISION_MAX_DIST_L		0x3C
+#define USBVISION_MAX_DIST_H		0x3D
+#define USBVISION_OP_CODE		0x33
+
+#define MAX_BYTES_PER_PIXEL		4
+
+#define MIN_FRAME_WIDTH			64
+#define MAX_USB_WIDTH			320  /* 384 */
+#define MAX_FRAME_WIDTH			320  /* 384 */			/* streching sometimes causes crashes*/
+
+#define MIN_FRAME_HEIGHT		48
+#define MAX_USB_HEIGHT			240  /* 288 */
+#define MAX_FRAME_HEIGHT		240  /* 288 */			/* Streching sometimes causes crashes*/
+
+#define MAX_FRAME_SIZE			(MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * MAX_BYTES_PER_PIXEL)
+#define USBVISION_CLIPMASK_SIZE		(MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT / 8) /* bytesize of clipmask */
+
+#define USBVISION_URB_FRAMES		32
+
+#define USBVISION_NUM_HEADERMARKER	20
+#define USBVISION_NUMFRAMES		3  /* Maximum number of frames an application can get */
+#define USBVISION_NUMSBUF		2 /* Dimensioning the USB S buffering */
+
+#define USBVISION_POWEROFF_TIME		(3 * HZ)		/* 3 seconds */
+
+
+#define FRAMERATE_MIN	0
+#define FRAMERATE_MAX	31
+
+enum {
+	ISOC_MODE_YUV422 = 0x03,
+	ISOC_MODE_YUV420 = 0x14,
+	ISOC_MODE_COMPRESS = 0x60,
+};
+
+/* This macro restricts an int variable to an inclusive range */
+#define RESTRICT_TO_RANGE(v, mi, ma) \
+	{ if ((v) < (mi)) (v) = (mi); else if ((v) > (ma)) (v) = (ma); }
+
+/*
+ * We use macros to do YUV -> RGB conversion because this is
+ * very important for speed and totally unimportant for size.
+ *
+ * YUV -> RGB Conversion
+ * ---------------------
+ *
+ * B = 1.164*(Y-16)		    + 2.018*(V-128)
+ * G = 1.164*(Y-16) - 0.813*(U-128) - 0.391*(V-128)
+ * R = 1.164*(Y-16) + 1.596*(U-128)
+ *
+ * If you fancy integer arithmetics (as you should), hear this:
+ *
+ * 65536*B = 76284*(Y-16)		  + 132252*(V-128)
+ * 65536*G = 76284*(Y-16) -  53281*(U-128) -  25625*(V-128)
+ * 65536*R = 76284*(Y-16) + 104595*(U-128)
+ *
+ * Make sure the output values are within [0..255] range.
+ */
+#define LIMIT_RGB(x) (((x) < 0) ? 0 : (((x) > 255) ? 255 : (x)))
+#define YUV_TO_RGB_BY_THE_BOOK(my, mu, mv, mr, mg, mb) { \
+	int mm_y, mm_yc, mm_u, mm_v, mm_r, mm_g, mm_b; \
+	mm_y = (my) - 16; \
+	mm_u = (mu) - 128; \
+	mm_v = (mv) - 128; \
+	mm_yc = mm_y * 76284; \
+	mm_b = (mm_yc + 132252 * mm_v) >> 16; \
+	mm_g = (mm_yc - 53281 * mm_u - 25625 * mm_v) >> 16; \
+	mm_r = (mm_yc + 104595 * mm_u) >> 16; \
+	mb = LIMIT_RGB(mm_b); \
+	mg = LIMIT_RGB(mm_g); \
+	mr = LIMIT_RGB(mm_r); \
+}
+
+/* Debugging aid */
+#define USBVISION_SAY_AND_WAIT(what) { \
+	wait_queue_head_t wq; \
+	init_waitqueue_head(&wq); \
+	printk(KERN_INFO "Say: %s\n", what); \
+	interruptible_sleep_on_timeout(&wq, HZ * 3); \
+}
+
+/*
+ * This macro checks if usbvision is still operational. The 'usbvision'
+ * pointer must be valid, usbvision->dev must be valid, we are not
+ * removing the device and the device has not erred on us.
+ */
+#define USBVISION_IS_OPERATIONAL(udevice) (\
+	(udevice != NULL) && \
+	((udevice)->dev != NULL) && \
+	((udevice)->last_error == 0) && \
+	(!(udevice)->remove_pending))
+
+#define I2C_USB_ADAP_MAX	16
+
+#define USBVISION_NORMS (V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM | V4L2_STD_PAL_M)
+
+/* ----------------------------------------------------------------- */
+/* usbvision video structures                                        */
+/* ----------------------------------------------------------------- */
+enum scan_state {
+	scan_state_scanning,	/* Scanning for header */
+	scan_state_lines	/* Parsing lines */
+};
+
+/* Completion states of the data parser */
+enum parse_state {
+	parse_state_continue,	/* Just parse next item */
+	parse_state_next_frame,	/* Frame done, send it to V4L */
+	parse_state_out,	/* Not enough data for frame */
+	parse_state_end_parse	/* End parsing */
+};
+
+enum frame_state {
+	frame_state_unused,	/* Unused (no MCAPTURE) */
+	frame_state_ready,	/* Ready to start grabbing */
+	frame_state_grabbing,	/* In the process of being grabbed into */
+	frame_state_done,	/* Finished grabbing, but not been synced yet */
+	frame_state_done_hold,	/* Are syncing or reading */
+	frame_state_error,	/* Something bad happened while processing */
+};
+
+/* stream states */
+enum stream_state {
+	stream_off,		/* Driver streaming is completely OFF */
+	stream_idle,		/* Driver streaming is ready to be put ON by the application */
+	stream_interrupt,	/* Driver streaming must be interrupted */
+	stream_on,		/* Driver streaming is put ON by the application */
+};
+
+enum isoc_state {
+	isoc_state_in_frame,	/* Isoc packet is member of frame */
+	isoc_state_no_frame,	/* Isoc packet is not member of any frame */
+};
+
+struct usb_device;
+
+struct usbvision_sbuf {
+	char *data;
+	struct urb *urb;
+};
+
+#define USBVISION_MAGIC_1			0x55
+#define USBVISION_MAGIC_2			0xAA
+#define USBVISION_HEADER_LENGTH			0x0c
+#define USBVISION_SAA7111_ADDR			0x48
+#define USBVISION_SAA7113_ADDR			0x4a
+#define USBVISION_IIC_LRACK			0x20
+#define USBVISION_IIC_LRNACK			0x30
+#define USBVISION_FRAME_FORMAT_PARAM_INTRA	(1<<7)
+
+struct usbvision_v4l2_format_st {
+	int		supported;
+	int		bytes_per_pixel;
+	int		depth;
+	int		format;
+	char		*desc;
+};
+#define USBVISION_SUPPORTED_PALETTES ARRAY_SIZE(usbvision_v4l2_format)
+
+struct usbvision_frame_header {
+	unsigned char magic_1;				/* 0 magic */
+	unsigned char magic_2;				/* 1  magic */
+	unsigned char header_length;			/* 2 */
+	unsigned char frame_num;			/* 3 */
+	unsigned char frame_phase;			/* 4 */
+	unsigned char frame_latency;			/* 5 */
+	unsigned char data_format;			/* 6 */
+	unsigned char format_param;			/* 7 */
+	unsigned char frame_width_lo;			/* 8 */
+	unsigned char frame_width_hi;			/* 9 */
+	unsigned char frame_height_lo;			/* 10 */
+	unsigned char frame_height_hi;			/* 11 */
+	__u16 frame_width;				/* 8 - 9 after endian correction*/
+	__u16 frame_height;				/* 10 - 11 after endian correction*/
+};
+
+struct usbvision_frame {
+	char *data;					/* Frame buffer */
+	struct usbvision_frame_header isoc_header;	/* Header from stream */
+
+	int width;					/* Width application is expecting */
+	int height;					/* Height */
+	int index;					/* Frame index */
+	int frmwidth;					/* Width the frame actually is */
+	int frmheight;					/* Height */
+
+	volatile int grabstate;				/* State of grabbing */
+	int scanstate;					/* State of scanning */
+
+	struct list_head frame;
+
+	int curline;					/* Line of frame we're working on */
+
+	long scanlength;				/* uncompressed, raw data length of frame */
+	long bytes_read;				/* amount of scanlength that has been read from data */
+	struct usbvision_v4l2_format_st v4l2_format;	/* format the user needs*/
+	int v4l2_linesize;				/* bytes for one videoline*/
+	struct timeval timestamp;
+	int sequence;					/* How many video frames we send to user */
+};
+
+#define CODEC_SAA7113	7113
+#define CODEC_SAA7111	7111
+#define CODEC_WEBCAM	3000
+#define BRIDGE_NT1003	1003
+#define BRIDGE_NT1004	1004
+#define BRIDGE_NT1005   1005
+
+struct usbvision_device_data_st {
+	__u64 video_norm;
+	const char *model_string;
+	int interface; /* to handle special interface number like BELKIN and Hauppauge WinTV-USB II */
+	__u16 codec;
+	unsigned video_channels:3;
+	unsigned audio_channels:2;
+	unsigned radio:1;
+	unsigned vbi:1;
+	unsigned tuner:1;
+	unsigned vin_reg1_override:1;	/* Override default value with */
+	unsigned vin_reg2_override:1;   /* vin_reg1, vin_reg2, etc. */
+	unsigned dvi_yuv_override:1;
+	__u8 vin_reg1;
+	__u8 vin_reg2;
+	__u8 dvi_yuv;
+	__u8 tuner_type;
+	__s16 x_offset;
+	__s16 y_offset;
+};
+
+/* Declared on usbvision-cards.c */
+extern struct usbvision_device_data_st usbvision_device_data[];
+extern struct usb_device_id usbvision_table[];
+
+struct usb_usbvision {
+	struct v4l2_device v4l2_dev;
+	struct video_device *vdev;					/* Video Device */
+	struct video_device *rdev;					/* Radio Device */
+
+	/* i2c Declaration Section*/
+	struct i2c_adapter i2c_adap;
+	int registered_i2c;
+
+	struct urb *ctrl_urb;
+	unsigned char ctrl_urb_buffer[8];
+	int ctrl_urb_busy;
+	struct usb_ctrlrequest ctrl_urb_setup;
+	wait_queue_head_t ctrl_urb_wq;					/* Processes waiting */
+
+	/* configuration part */
+	int have_tuner;
+	int tuner_type;
+	int bridge_type;						/* NT1003, NT1004, NT1005 */
+	int radio;
+	int video_inputs;						/* # of inputs */
+	unsigned long freq;
+	int audio_mute;
+	int audio_channel;
+	int isoc_mode;							/* format of video data for the usb isoc-transfer */
+	unsigned int nr;						/* Number of the device */
+
+	/* Device structure */
+	struct usb_device *dev;
+	/* usb transfer */
+	int num_alt;		/* Number of alternative settings */
+	unsigned int *alt_max_pkt_size;	/* array of max_packet_size */
+	unsigned char iface;						/* Video interface number */
+	unsigned char iface_alt;					/* Alt settings */
+	unsigned char vin_reg2_preset;
+	struct mutex v4l2_lock;
+	struct timer_list power_off_timer;
+	struct work_struct power_off_work;
+	int power;							/* is the device powered on? */
+	int user;							/* user count for exclusive use */
+	int initialized;						/* Had we already sent init sequence? */
+	int dev_model;							/* What type of USBVISION device we got? */
+	enum stream_state streaming;					/* Are we streaming Isochronous? */
+	int last_error;							/* What calamity struck us? */
+	int curwidth;							/* width of the frame the device is currently set to*/
+	int curheight;							/* height of the frame the device is currently set to*/
+	int stretch_width;						/* stretch-factor for frame width (from usb to screen)*/
+	int stretch_height;						/* stretch-factor for frame height (from usb to screen)*/
+	char *fbuf;							/* Videodev buffer area for mmap*/
+	int max_frame_size;						/* Bytes in one video frame */
+	int fbuf_size;							/* Videodev buffer size */
+	spinlock_t queue_lock;						/* spinlock for protecting mods on inqueue and outqueue */
+	struct list_head inqueue, outqueue;                             /* queued frame list and ready to dequeue frame list */
+	wait_queue_head_t wait_frame;					/* Processes waiting */
+	wait_queue_head_t wait_stream;					/* Processes waiting */
+	struct usbvision_frame *cur_frame;				/* pointer to current frame, set by usbvision_find_header */
+	struct usbvision_frame frame[USBVISION_NUMFRAMES];		/* frame buffer */
+	int num_frames;							/* number of frames allocated */
+	struct usbvision_sbuf sbuf[USBVISION_NUMSBUF];			/* S buffering */
+	volatile int remove_pending;					/* If set then about to exit */
+
+	/* Scratch space from the Isochronous Pipe.*/
+	unsigned char *scratch;
+	int scratch_read_ptr;
+	int scratch_write_ptr;
+	int scratch_headermarker[USBVISION_NUM_HEADERMARKER];
+	int scratch_headermarker_read_ptr;
+	int scratch_headermarker_write_ptr;
+	enum isoc_state isocstate;
+	struct usbvision_v4l2_format_st palette;
+
+	struct v4l2_capability vcap;					/* Video capabilities */
+	unsigned int ctl_input;						/* selected input */
+	v4l2_std_id tvnorm_id;						/* selected tv norm */
+	unsigned char video_endp;					/* 0x82 for USBVISION devices based */
+
+	/* Decompression stuff: */
+	unsigned char *intra_frame_buffer;				/* Buffer for reference frame */
+	int block_pos;							/* for test only */
+	int request_intra;						/* 0 = normal; 1 = intra frame is requested; */
+	int last_isoc_frame_num;					/* check for lost isoc frames */
+	int isoc_packet_size;						/* need to calculate used_bandwidth */
+	int used_bandwidth;						/* used bandwidth 0-100%, need to set compr_level */
+	int compr_level;						/* How strong (100) or weak (0) is compression */
+	int last_compr_level;						/* How strong (100) or weak (0) was compression */
+	int usb_bandwidth;						/* Mbit/s */
+
+	/* Statistics that can be overlayed on the screen */
+	unsigned long isoc_urb_count;			/* How many URBs we received so far */
+	unsigned long urb_length;			/* Length of last URB */
+	unsigned long isoc_data_count;			/* How many bytes we received */
+	unsigned long header_count;			/* How many frame headers we found */
+	unsigned long scratch_ovf_count;		/* How many times we overflowed scratch */
+	unsigned long isoc_skip_count;			/* How many empty ISO packets received */
+	unsigned long isoc_err_count;			/* How many bad ISO packets received */
+	unsigned long isoc_packet_count;		/* How many packets we totally got */
+	unsigned long time_in_irq;			/* How long do we need for interrupt */
+	int isoc_measure_bandwidth_count;
+	int frame_num;					/* How many video frames we send to user */
+	int max_strip_len;				/* How big is the biggest strip */
+	int comprblock_pos;
+	int strip_len_errors;				/* How many times was block_pos greater than strip_len */
+	int strip_magic_errors;
+	int strip_line_number_errors;
+	int compr_block_types[4];
+};
+
+static inline struct usb_usbvision *to_usbvision(struct v4l2_device *v4l2_dev)
+{
+	return container_of(v4l2_dev, struct usb_usbvision, v4l2_dev);
+}
+
+#define call_all(usbvision, o, f, args...) \
+	v4l2_device_call_all(&usbvision->v4l2_dev, 0, o, f, ##args)
+
+/* --------------------------------------------------------------- */
+/* defined in usbvision-i2c.c                                      */
+/* i2c-algo-usb declaration                                        */
+/* --------------------------------------------------------------- */
+
+/* ----------------------------------------------------------------------- */
+/* usbvision specific I2C functions                                        */
+/* ----------------------------------------------------------------------- */
+int usbvision_i2c_register(struct usb_usbvision *usbvision);
+int usbvision_i2c_unregister(struct usb_usbvision *usbvision);
+
+/* defined in usbvision-core.c                                      */
+int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg);
+int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg,
+			unsigned char value);
+
+int usbvision_frames_alloc(struct usb_usbvision *usbvision, int number_of_frames);
+void usbvision_frames_free(struct usb_usbvision *usbvision);
+int usbvision_scratch_alloc(struct usb_usbvision *usbvision);
+void usbvision_scratch_free(struct usb_usbvision *usbvision);
+int usbvision_decompress_alloc(struct usb_usbvision *usbvision);
+void usbvision_decompress_free(struct usb_usbvision *usbvision);
+
+int usbvision_setup(struct usb_usbvision *usbvision, int format);
+int usbvision_init_isoc(struct usb_usbvision *usbvision);
+int usbvision_restart_isoc(struct usb_usbvision *usbvision);
+void usbvision_stop_isoc(struct usb_usbvision *usbvision);
+int usbvision_set_alternate(struct usb_usbvision *dev);
+
+int usbvision_set_audio(struct usb_usbvision *usbvision, int audio_channel);
+int usbvision_audio_off(struct usb_usbvision *usbvision);
+
+int usbvision_begin_streaming(struct usb_usbvision *usbvision);
+void usbvision_empty_framequeues(struct usb_usbvision *dev);
+int usbvision_stream_interrupt(struct usb_usbvision *dev);
+
+int usbvision_muxsel(struct usb_usbvision *usbvision, int channel);
+int usbvision_set_input(struct usb_usbvision *usbvision);
+int usbvision_set_output(struct usb_usbvision *usbvision, int width, int height);
+
+void usbvision_init_power_off_timer(struct usb_usbvision *usbvision);
+void usbvision_set_power_off_timer(struct usb_usbvision *usbvision);
+void usbvision_reset_power_off_timer(struct usb_usbvision *usbvision);
+int usbvision_power_off(struct usb_usbvision *usbvision);
+int usbvision_power_on(struct usb_usbvision *usbvision);
+
+#endif									/* __LINUX_USBVISION_H */
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */