[media] rename drivers/media/video as .../platform

The remaining drivers are mostly platform drivers. Name the
dir to reflect it.

It makes sense to latter break it into a few other dirs.

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

1 files changed, 0 insertions, 1409 deletions

diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
deleted file mode 100644
index a6351c49bfd..00000000000
--- a/drivers/media/video/vivi.c
+++ /dev/null
@@ -1,1409 +0,0 @@
-/*
- * Virtual Video driver - This code emulates a real video device with v4l2 api
- *
- * Copyright (c) 2006 by:
- *      Mauro Carvalho Chehab <mchehab--a.t--infradead.org>
- *      Ted Walther <ted--a.t--enumera.com>
- *      John Sokol <sokol--a.t--videotechnology.com>
- *      http://v4l.videotechnology.com/
- *
- *      Conversion to videobuf2 by Pawel Osciak & Marek Szyprowski
- *      Copyright (c) 2010 Samsung Electronics
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the BSD Licence, GNU General Public License
- * as published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version
- */
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/font.h>
-#include <linux/mutex.h>
-#include <linux/videodev2.h>
-#include <linux/kthread.h>
-#include <linux/freezer.h>
-#include <media/videobuf2-vmalloc.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ioctl.h>
-#include <media/v4l2-ctrls.h>
-#include <media/v4l2-fh.h>
-#include <media/v4l2-event.h>
-#include <media/v4l2-common.h>
-
-#define VIVI_MODULE_NAME "vivi"
-
-/* Wake up at about 30 fps */
-#define WAKE_NUMERATOR 30
-#define WAKE_DENOMINATOR 1001
-#define BUFFER_TIMEOUT     msecs_to_jiffies(500)  /* 0.5 seconds */
-
-#define MAX_WIDTH 1920
-#define MAX_HEIGHT 1200
-
-#define VIVI_VERSION "0.8.1"
-
-MODULE_DESCRIPTION("Video Technology Magazine Virtual Video Capture Board");
-MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol");
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_VERSION(VIVI_VERSION);
-
-static unsigned video_nr = -1;
-module_param(video_nr, uint, 0644);
-MODULE_PARM_DESC(video_nr, "videoX start number, -1 is autodetect");
-
-static unsigned n_devs = 1;
-module_param(n_devs, uint, 0644);
-MODULE_PARM_DESC(n_devs, "number of video devices to create");
-
-static unsigned debug;
-module_param(debug, uint, 0644);
-MODULE_PARM_DESC(debug, "activates debug info");
-
-static unsigned int vid_limit = 16;
-module_param(vid_limit, uint, 0644);
-MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
-
-/* Global font descriptor */
-static const u8 *font8x16;
-
-#define dprintk(dev, level, fmt, arg...) \
-	v4l2_dbg(level, debug, &dev->v4l2_dev, fmt, ## arg)
-
-/* ------------------------------------------------------------------
-	Basic structures
-   ------------------------------------------------------------------*/
-
-struct vivi_fmt {
-	char  *name;
-	u32   fourcc;          /* v4l2 format id */
-	u8    depth;
-	bool  is_yuv;
-};
-
-static struct vivi_fmt formats[] = {
-	{
-		.name     = "4:2:2, packed, YUYV",
-		.fourcc   = V4L2_PIX_FMT_YUYV,
-		.depth    = 16,
-		.is_yuv   = true,
-	},
-	{
-		.name     = "4:2:2, packed, UYVY",
-		.fourcc   = V4L2_PIX_FMT_UYVY,
-		.depth    = 16,
-		.is_yuv   = true,
-	},
-	{
-		.name     = "4:2:2, packed, YVYU",
-		.fourcc   = V4L2_PIX_FMT_YVYU,
-		.depth    = 16,
-		.is_yuv   = true,
-	},
-	{
-		.name     = "4:2:2, packed, VYUY",
-		.fourcc   = V4L2_PIX_FMT_VYUY,
-		.depth    = 16,
-		.is_yuv   = true,
-	},
-	{
-		.name     = "RGB565 (LE)",
-		.fourcc   = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
-		.depth    = 16,
-	},
-	{
-		.name     = "RGB565 (BE)",
-		.fourcc   = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
-		.depth    = 16,
-	},
-	{
-		.name     = "RGB555 (LE)",
-		.fourcc   = V4L2_PIX_FMT_RGB555, /* gggbbbbb arrrrrgg */
-		.depth    = 16,
-	},
-	{
-		.name     = "RGB555 (BE)",
-		.fourcc   = V4L2_PIX_FMT_RGB555X, /* arrrrrgg gggbbbbb */
-		.depth    = 16,
-	},
-	{
-		.name     = "RGB24 (LE)",
-		.fourcc   = V4L2_PIX_FMT_RGB24, /* rgb */
-		.depth    = 24,
-	},
-	{
-		.name     = "RGB24 (BE)",
-		.fourcc   = V4L2_PIX_FMT_BGR24, /* bgr */
-		.depth    = 24,
-	},
-	{
-		.name     = "RGB32 (LE)",
-		.fourcc   = V4L2_PIX_FMT_RGB32, /* argb */
-		.depth    = 32,
-	},
-	{
-		.name     = "RGB32 (BE)",
-		.fourcc   = V4L2_PIX_FMT_BGR32, /* bgra */
-		.depth    = 32,
-	},
-};
-
-static struct vivi_fmt *get_format(struct v4l2_format *f)
-{
-	struct vivi_fmt *fmt;
-	unsigned int k;
-
-	for (k = 0; k < ARRAY_SIZE(formats); k++) {
-		fmt = &formats[k];
-		if (fmt->fourcc == f->fmt.pix.pixelformat)
-			break;
-	}
-
-	if (k == ARRAY_SIZE(formats))
-		return NULL;
-
-	return &formats[k];
-}
-
-/* buffer for one video frame */
-struct vivi_buffer {
-	/* common v4l buffer stuff -- must be first */
-	struct vb2_buffer	vb;
-	struct list_head	list;
-	struct vivi_fmt        *fmt;
-};
-
-struct vivi_dmaqueue {
-	struct list_head       active;
-
-	/* thread for generating video stream*/
-	struct task_struct         *kthread;
-	wait_queue_head_t          wq;
-	/* Counters to control fps rate */
-	int                        frame;
-	int                        ini_jiffies;
-};
-
-static LIST_HEAD(vivi_devlist);
-
-struct vivi_dev {
-	struct list_head           vivi_devlist;
-	struct v4l2_device 	   v4l2_dev;
-	struct v4l2_ctrl_handler   ctrl_handler;
-	struct video_device	   vdev;
-
-	/* controls */
-	struct v4l2_ctrl	   *brightness;
-	struct v4l2_ctrl	   *contrast;
-	struct v4l2_ctrl	   *saturation;
-	struct v4l2_ctrl	   *hue;
-	struct {
-		/* autogain/gain cluster */
-		struct v4l2_ctrl	   *autogain;
-		struct v4l2_ctrl	   *gain;
-	};
-	struct v4l2_ctrl	   *volume;
-	struct v4l2_ctrl	   *alpha;
-	struct v4l2_ctrl	   *button;
-	struct v4l2_ctrl	   *boolean;
-	struct v4l2_ctrl	   *int32;
-	struct v4l2_ctrl	   *int64;
-	struct v4l2_ctrl	   *menu;
-	struct v4l2_ctrl	   *string;
-	struct v4l2_ctrl	   *bitmask;
-	struct v4l2_ctrl	   *int_menu;
-
-	spinlock_t                 slock;
-	struct mutex		   mutex;
-
-	struct vivi_dmaqueue       vidq;
-
-	/* Several counters */
-	unsigned 		   ms;
-	unsigned long              jiffies;
-	unsigned		   button_pressed;
-
-	int			   mv_count;	/* Controls bars movement */
-
-	/* Input Number */
-	int			   input;
-
-	/* video capture */
-	struct vivi_fmt            *fmt;
-	unsigned int               width, height;
-	struct vb2_queue	   vb_vidq;
-	unsigned int		   field_count;
-
-	u8			   bars[9][3];
-	u8			   line[MAX_WIDTH * 8];
-	unsigned int		   pixelsize;
-	u8			   alpha_component;
-};
-
-/* ------------------------------------------------------------------
-	DMA and thread functions
-   ------------------------------------------------------------------*/
-
-/* Bars and Colors should match positions */
-
-enum colors {
-	WHITE,
-	AMBER,
-	CYAN,
-	GREEN,
-	MAGENTA,
-	RED,
-	BLUE,
-	BLACK,
-	TEXT_BLACK,
-};
-
-/* R   G   B */
-#define COLOR_WHITE	{204, 204, 204}
-#define COLOR_AMBER	{208, 208,   0}
-#define COLOR_CYAN	{  0, 206, 206}
-#define	COLOR_GREEN	{  0, 239,   0}
-#define COLOR_MAGENTA	{239,   0, 239}
-#define COLOR_RED	{205,   0,   0}
-#define COLOR_BLUE	{  0,   0, 255}
-#define COLOR_BLACK	{  0,   0,   0}
-
-struct bar_std {
-	u8 bar[9][3];
-};
-
-/* Maximum number of bars are 10 - otherwise, the input print code
-   should be modified */
-static struct bar_std bars[] = {
-	{	/* Standard ITU-R color bar sequence */
-		{ COLOR_WHITE, COLOR_AMBER, COLOR_CYAN, COLOR_GREEN,
-		  COLOR_MAGENTA, COLOR_RED, COLOR_BLUE, COLOR_BLACK, COLOR_BLACK }
-	}, {
-		{ COLOR_WHITE, COLOR_AMBER, COLOR_BLACK, COLOR_WHITE,
-		  COLOR_AMBER, COLOR_BLACK, COLOR_WHITE, COLOR_AMBER, COLOR_BLACK }
-	}, {
-		{ COLOR_WHITE, COLOR_CYAN, COLOR_BLACK, COLOR_WHITE,
-		  COLOR_CYAN, COLOR_BLACK, COLOR_WHITE, COLOR_CYAN, COLOR_BLACK }
-	}, {
-		{ COLOR_WHITE, COLOR_GREEN, COLOR_BLACK, COLOR_WHITE,
-		  COLOR_GREEN, COLOR_BLACK, COLOR_WHITE, COLOR_GREEN, COLOR_BLACK }
-	},
-};
-
-#define NUM_INPUTS ARRAY_SIZE(bars)
-
-#define TO_Y(r, g, b) \
-	(((16829 * r + 33039 * g + 6416 * b  + 32768) >> 16) + 16)
-/* RGB to  V(Cr) Color transform */
-#define TO_V(r, g, b) \
-	(((28784 * r - 24103 * g - 4681 * b  + 32768) >> 16) + 128)
-/* RGB to  U(Cb) Color transform */
-#define TO_U(r, g, b) \
-	(((-9714 * r - 19070 * g + 28784 * b + 32768) >> 16) + 128)
-
-/* precalculate color bar values to speed up rendering */
-static void precalculate_bars(struct vivi_dev *dev)
-{
-	u8 r, g, b;
-	int k, is_yuv;
-
-	for (k = 0; k < 9; k++) {
-		r = bars[dev->input].bar[k][0];
-		g = bars[dev->input].bar[k][1];
-		b = bars[dev->input].bar[k][2];
-		is_yuv = dev->fmt->is_yuv;
-
-		switch (dev->fmt->fourcc) {
-		case V4L2_PIX_FMT_RGB565:
-		case V4L2_PIX_FMT_RGB565X:
-			r >>= 3;
-			g >>= 2;
-			b >>= 3;
-			break;
-		case V4L2_PIX_FMT_RGB555:
-		case V4L2_PIX_FMT_RGB555X:
-			r >>= 3;
-			g >>= 3;
-			b >>= 3;
-			break;
-		case V4L2_PIX_FMT_YUYV:
-		case V4L2_PIX_FMT_UYVY:
-		case V4L2_PIX_FMT_YVYU:
-		case V4L2_PIX_FMT_VYUY:
-		case V4L2_PIX_FMT_RGB24:
-		case V4L2_PIX_FMT_BGR24:
-		case V4L2_PIX_FMT_RGB32:
-		case V4L2_PIX_FMT_BGR32:
-			break;
-		}
-
-		if (is_yuv) {
-			dev->bars[k][0] = TO_Y(r, g, b);	/* Luma */
-			dev->bars[k][1] = TO_U(r, g, b);	/* Cb */
-			dev->bars[k][2] = TO_V(r, g, b);	/* Cr */
-		} else {
-			dev->bars[k][0] = r;
-			dev->bars[k][1] = g;
-			dev->bars[k][2] = b;
-		}
-	}
-}
-
-#define TSTAMP_MIN_Y	24
-#define TSTAMP_MAX_Y	(TSTAMP_MIN_Y + 15)
-#define TSTAMP_INPUT_X	10
-#define TSTAMP_MIN_X	(54 + TSTAMP_INPUT_X)
-
-/* 'odd' is true for pixels 1, 3, 5, etc. and false for pixels 0, 2, 4, etc. */
-static void gen_twopix(struct vivi_dev *dev, u8 *buf, int colorpos, bool odd)
-{
-	u8 r_y, g_u, b_v;
-	u8 alpha = dev->alpha_component;
-	int color;
-	u8 *p;
-
-	r_y = dev->bars[colorpos][0]; /* R or precalculated Y */
-	g_u = dev->bars[colorpos][1]; /* G or precalculated U */
-	b_v = dev->bars[colorpos][2]; /* B or precalculated V */
-
-	for (color = 0; color < dev->pixelsize; color++) {
-		p = buf + color;
-
-		switch (dev->fmt->fourcc) {
-		case V4L2_PIX_FMT_YUYV:
-			switch (color) {
-			case 0:
-				*p = r_y;
-				break;
-			case 1:
-				*p = odd ? b_v : g_u;
-				break;
-			}
-			break;
-		case V4L2_PIX_FMT_UYVY:
-			switch (color) {
-			case 0:
-				*p = odd ? b_v : g_u;
-				break;
-			case 1:
-				*p = r_y;
-				break;
-			}
-			break;
-		case V4L2_PIX_FMT_YVYU:
-			switch (color) {
-			case 0:
-				*p = r_y;
-				break;
-			case 1:
-				*p = odd ? g_u : b_v;
-				break;
-			}
-			break;
-		case V4L2_PIX_FMT_VYUY:
-			switch (color) {
-			case 0:
-				*p = odd ? g_u : b_v;
-				break;
-			case 1:
-				*p = r_y;
-				break;
-			}
-			break;
-		case V4L2_PIX_FMT_RGB565:
-			switch (color) {
-			case 0:
-				*p = (g_u << 5) | b_v;
-				break;
-			case 1:
-				*p = (r_y << 3) | (g_u >> 3);
-				break;
-			}
-			break;
-		case V4L2_PIX_FMT_RGB565X:
-			switch (color) {
-			case 0:
-				*p = (r_y << 3) | (g_u >> 3);
-				break;
-			case 1:
-				*p = (g_u << 5) | b_v;
-				break;
-			}
-			break;
-		case V4L2_PIX_FMT_RGB555:
-			switch (color) {
-			case 0:
-				*p = (g_u << 5) | b_v;
-				break;
-			case 1:
-				*p = (alpha & 0x80) | (r_y << 2) | (g_u >> 3);
-				break;
-			}
-			break;
-		case V4L2_PIX_FMT_RGB555X:
-			switch (color) {
-			case 0:
-				*p = (alpha & 0x80) | (r_y << 2) | (g_u >> 3);
-				break;
-			case 1:
-				*p = (g_u << 5) | b_v;
-				break;
-			}
-			break;
-		case V4L2_PIX_FMT_RGB24:
-			switch (color) {
-			case 0:
-				*p = r_y;
-				break;
-			case 1:
-				*p = g_u;
-				break;
-			case 2:
-				*p = b_v;
-				break;
-			}
-			break;
-		case V4L2_PIX_FMT_BGR24:
-			switch (color) {
-			case 0:
-				*p = b_v;
-				break;
-			case 1:
-				*p = g_u;
-				break;
-			case 2:
-				*p = r_y;
-				break;
-			}
-			break;
-		case V4L2_PIX_FMT_RGB32:
-			switch (color) {
-			case 0:
-				*p = alpha;
-				break;
-			case 1:
-				*p = r_y;
-				break;
-			case 2:
-				*p = g_u;
-				break;
-			case 3:
-				*p = b_v;
-				break;
-			}
-			break;
-		case V4L2_PIX_FMT_BGR32:
-			switch (color) {
-			case 0:
-				*p = b_v;
-				break;
-			case 1:
-				*p = g_u;
-				break;
-			case 2:
-				*p = r_y;
-				break;
-			case 3:
-				*p = alpha;
-				break;
-			}
-			break;
-		}
-	}
-}
-
-static void precalculate_line(struct vivi_dev *dev)
-{
-	int w;
-
-	for (w = 0; w < dev->width * 2; w++) {
-		int colorpos = w / (dev->width / 8) % 8;
-
-		gen_twopix(dev, dev->line + w * dev->pixelsize, colorpos, w & 1);
-	}
-}
-
-static void gen_text(struct vivi_dev *dev, char *basep,
-					int y, int x, char *text)
-{
-	int line;
-
-	/* Checks if it is possible to show string */
-	if (y + 16 >= dev->height || x + strlen(text) * 8 >= dev->width)
-		return;
-
-	/* Print stream time */
-	for (line = y; line < y + 16; line++) {
-		int j = 0;
-		char *pos = basep + line * dev->width * dev->pixelsize + x * dev->pixelsize;
-		char *s;
-
-		for (s = text; *s; s++) {
-			u8 chr = font8x16[*s * 16 + line - y];
-			int i;
-
-			for (i = 0; i < 7; i++, j++) {
-				/* Draw white font on black background */
-				if (chr & (1 << (7 - i)))
-					gen_twopix(dev, pos + j * dev->pixelsize, WHITE, (x+y) & 1);
-				else
-					gen_twopix(dev, pos + j * dev->pixelsize, TEXT_BLACK, (x+y) & 1);
-			}
-		}
-	}
-}
-
-static void vivi_fillbuff(struct vivi_dev *dev, struct vivi_buffer *buf)
-{
-	int wmax = dev->width;
-	int hmax = dev->height;
-	struct timeval ts;
-	void *vbuf = vb2_plane_vaddr(&buf->vb, 0);
-	unsigned ms;
-	char str[100];
-	int h, line = 1;
-	s32 gain;
-
-	if (!vbuf)
-		return;
-
-	for (h = 0; h < hmax; h++)
-		memcpy(vbuf + h * wmax * dev->pixelsize,
-		       dev->line + (dev->mv_count % wmax) * dev->pixelsize,
-		       wmax * dev->pixelsize);
-
-	/* Updates stream time */
-
-	dev->ms += jiffies_to_msecs(jiffies - dev->jiffies);
-	dev->jiffies = jiffies;
-	ms = dev->ms;
-	snprintf(str, sizeof(str), " %02d:%02d:%02d:%03d ",
-			(ms / (60 * 60 * 1000)) % 24,
-			(ms / (60 * 1000)) % 60,
-			(ms / 1000) % 60,
-			ms % 1000);
-	gen_text(dev, vbuf, line++ * 16, 16, str);
-	snprintf(str, sizeof(str), " %dx%d, input %d ",
-			dev->width, dev->height, dev->input);
-	gen_text(dev, vbuf, line++ * 16, 16, str);
-
-	gain = v4l2_ctrl_g_ctrl(dev->gain);
-	mutex_lock(dev->ctrl_handler.lock);
-	snprintf(str, sizeof(str), " brightness %3d, contrast %3d, saturation %3d, hue %d ",
-			dev->brightness->cur.val,
-			dev->contrast->cur.val,
-			dev->saturation->cur.val,
-			dev->hue->cur.val);
-	gen_text(dev, vbuf, line++ * 16, 16, str);
-	snprintf(str, sizeof(str), " autogain %d, gain %3d, volume %3d, alpha 0x%02x ",
-			dev->autogain->cur.val, gain, dev->volume->cur.val,
-			dev->alpha->cur.val);
-	gen_text(dev, vbuf, line++ * 16, 16, str);
-	snprintf(str, sizeof(str), " int32 %d, int64 %lld, bitmask %08x ",
-			dev->int32->cur.val,
-			dev->int64->cur.val64,
-			dev->bitmask->cur.val);
-	gen_text(dev, vbuf, line++ * 16, 16, str);
-	snprintf(str, sizeof(str), " boolean %d, menu %s, string \"%s\" ",
-			dev->boolean->cur.val,
-			dev->menu->qmenu[dev->menu->cur.val],
-			dev->string->cur.string);
-	gen_text(dev, vbuf, line++ * 16, 16, str);
-	snprintf(str, sizeof(str), " integer_menu %lld, value %d ",
-			dev->int_menu->qmenu_int[dev->int_menu->cur.val],
-			dev->int_menu->cur.val);
-	gen_text(dev, vbuf, line++ * 16, 16, str);
-	mutex_unlock(dev->ctrl_handler.lock);
-	if (dev->button_pressed) {
-		dev->button_pressed--;
-		snprintf(str, sizeof(str), " button pressed!");
-		gen_text(dev, vbuf, line++ * 16, 16, str);
-	}
-
-	dev->mv_count += 2;
-
-	buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED;
-	dev->field_count++;
-	buf->vb.v4l2_buf.sequence = dev->field_count >> 1;
-	do_gettimeofday(&ts);
-	buf->vb.v4l2_buf.timestamp = ts;
-}
-
-static void vivi_thread_tick(struct vivi_dev *dev)
-{
-	struct vivi_dmaqueue *dma_q = &dev->vidq;
-	struct vivi_buffer *buf;
-	unsigned long flags = 0;
-
-	dprintk(dev, 1, "Thread tick\n");
-
-	spin_lock_irqsave(&dev->slock, flags);
-	if (list_empty(&dma_q->active)) {
-		dprintk(dev, 1, "No active queue to serve\n");
-		spin_unlock_irqrestore(&dev->slock, flags);
-		return;
-	}
-
-	buf = list_entry(dma_q->active.next, struct vivi_buffer, list);
-	list_del(&buf->list);
-	spin_unlock_irqrestore(&dev->slock, flags);
-
-	do_gettimeofday(&buf->vb.v4l2_buf.timestamp);
-
-	/* Fill buffer */
-	vivi_fillbuff(dev, buf);
-	dprintk(dev, 1, "filled buffer %p\n", buf);
-
-	vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);
-	dprintk(dev, 2, "[%p/%d] done\n", buf, buf->vb.v4l2_buf.index);
-}
-
-#define frames_to_ms(frames)					\
-	((frames * WAKE_NUMERATOR * 1000) / WAKE_DENOMINATOR)
-
-static void vivi_sleep(struct vivi_dev *dev)
-{
-	struct vivi_dmaqueue *dma_q = &dev->vidq;
-	int timeout;
-	DECLARE_WAITQUEUE(wait, current);
-
-	dprintk(dev, 1, "%s dma_q=0x%08lx\n", __func__,
-		(unsigned long)dma_q);
-
-	add_wait_queue(&dma_q->wq, &wait);
-	if (kthread_should_stop())
-		goto stop_task;
-
-	/* Calculate time to wake up */
-	timeout = msecs_to_jiffies(frames_to_ms(1));
-
-	vivi_thread_tick(dev);
-
-	schedule_timeout_interruptible(timeout);
-
-stop_task:
-	remove_wait_queue(&dma_q->wq, &wait);
-	try_to_freeze();
-}
-
-static int vivi_thread(void *data)
-{
-	struct vivi_dev *dev = data;
-
-	dprintk(dev, 1, "thread started\n");
-
-	set_freezable();
-
-	for (;;) {
-		vivi_sleep(dev);
-
-		if (kthread_should_stop())
-			break;
-	}
-	dprintk(dev, 1, "thread: exit\n");
-	return 0;
-}
-
-static int vivi_start_generating(struct vivi_dev *dev)
-{
-	struct vivi_dmaqueue *dma_q = &dev->vidq;
-
-	dprintk(dev, 1, "%s\n", __func__);
-
-	/* Resets frame counters */
-	dev->ms = 0;
-	dev->mv_count = 0;
-	dev->jiffies = jiffies;
-
-	dma_q->frame = 0;
-	dma_q->ini_jiffies = jiffies;
-	dma_q->kthread = kthread_run(vivi_thread, dev, dev->v4l2_dev.name);
-
-	if (IS_ERR(dma_q->kthread)) {
-		v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n");
-		return PTR_ERR(dma_q->kthread);
-	}
-	/* Wakes thread */
-	wake_up_interruptible(&dma_q->wq);
-
-	dprintk(dev, 1, "returning from %s\n", __func__);
-	return 0;
-}
-
-static void vivi_stop_generating(struct vivi_dev *dev)
-{
-	struct vivi_dmaqueue *dma_q = &dev->vidq;
-
-	dprintk(dev, 1, "%s\n", __func__);
-
-	/* shutdown control thread */
-	if (dma_q->kthread) {
-		kthread_stop(dma_q->kthread);
-		dma_q->kthread = NULL;
-	}
-
-	/*
-	 * Typical driver might need to wait here until dma engine stops.
-	 * In this case we can abort imiedetly, so it's just a noop.
-	 */
-
-	/* Release all active buffers */
-	while (!list_empty(&dma_q->active)) {
-		struct vivi_buffer *buf;
-		buf = list_entry(dma_q->active.next, struct vivi_buffer, list);
-		list_del(&buf->list);
-		vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
-		dprintk(dev, 2, "[%p/%d] done\n", buf, buf->vb.v4l2_buf.index);
-	}
-}
-/* ------------------------------------------------------------------
-	Videobuf operations
-   ------------------------------------------------------------------*/
-static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
-				unsigned int *nbuffers, unsigned int *nplanes,
-				unsigned int sizes[], void *alloc_ctxs[])
-{
-	struct vivi_dev *dev = vb2_get_drv_priv(vq);
-	unsigned long size;
-
-	if (fmt)
-		size = fmt->fmt.pix.sizeimage;
-	else
-		size = dev->width * dev->height * dev->pixelsize;
-
-	if (size == 0)
-		return -EINVAL;
-
-	if (0 == *nbuffers)
-		*nbuffers = 32;
-
-	while (size * *nbuffers > vid_limit * 1024 * 1024)
-		(*nbuffers)--;
-
-	*nplanes = 1;
-
-	sizes[0] = size;
-
-	/*
-	 * videobuf2-vmalloc allocator is context-less so no need to set
-	 * alloc_ctxs array.
-	 */
-
-	dprintk(dev, 1, "%s, count=%d, size=%ld\n", __func__,
-		*nbuffers, size);
-
-	return 0;
-}
-
-static int buffer_prepare(struct vb2_buffer *vb)
-{
-	struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
-	struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb);
-	unsigned long size;
-
-	dprintk(dev, 1, "%s, field=%d\n", __func__, vb->v4l2_buf.field);
-
-	BUG_ON(NULL == dev->fmt);
-
-	/*
-	 * Theses properties only change when queue is idle, see s_fmt.
-	 * The below checks should not be performed here, on each
-	 * buffer_prepare (i.e. on each qbuf). Most of the code in this function
-	 * should thus be moved to buffer_init and s_fmt.
-	 */
-	if (dev->width  < 48 || dev->width  > MAX_WIDTH ||
-	    dev->height < 32 || dev->height > MAX_HEIGHT)
-		return -EINVAL;
-
-	size = dev->width * dev->height * dev->pixelsize;
-	if (vb2_plane_size(vb, 0) < size) {
-		dprintk(dev, 1, "%s data will not fit into plane (%lu < %lu)\n",
-				__func__, vb2_plane_size(vb, 0), size);
-		return -EINVAL;
-	}
-
-	vb2_set_plane_payload(&buf->vb, 0, size);
-
-	buf->fmt = dev->fmt;
-
-	precalculate_bars(dev);
-	precalculate_line(dev);
-
-	return 0;
-}
-
-static void buffer_queue(struct vb2_buffer *vb)
-{
-	struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
-	struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb);
-	struct vivi_dmaqueue *vidq = &dev->vidq;
-	unsigned long flags = 0;
-
-	dprintk(dev, 1, "%s\n", __func__);
-
-	spin_lock_irqsave(&dev->slock, flags);
-	list_add_tail(&buf->list, &vidq->active);
-	spin_unlock_irqrestore(&dev->slock, flags);
-}
-
-static int start_streaming(struct vb2_queue *vq, unsigned int count)
-{
-	struct vivi_dev *dev = vb2_get_drv_priv(vq);
-	dprintk(dev, 1, "%s\n", __func__);
-	return vivi_start_generating(dev);
-}
-
-/* abort streaming and wait for last buffer */
-static int stop_streaming(struct vb2_queue *vq)
-{
-	struct vivi_dev *dev = vb2_get_drv_priv(vq);
-	dprintk(dev, 1, "%s\n", __func__);
-	vivi_stop_generating(dev);
-	return 0;
-}
-
-static void vivi_lock(struct vb2_queue *vq)
-{
-	struct vivi_dev *dev = vb2_get_drv_priv(vq);
-	mutex_lock(&dev->mutex);
-}
-
-static void vivi_unlock(struct vb2_queue *vq)
-{
-	struct vivi_dev *dev = vb2_get_drv_priv(vq);
-	mutex_unlock(&dev->mutex);
-}
-
-
-static struct vb2_ops vivi_video_qops = {
-	.queue_setup		= queue_setup,
-	.buf_prepare		= buffer_prepare,
-	.buf_queue		= buffer_queue,
-	.start_streaming	= start_streaming,
-	.stop_streaming		= stop_streaming,
-	.wait_prepare		= vivi_unlock,
-	.wait_finish		= vivi_lock,
-};
-
-/* ------------------------------------------------------------------
-	IOCTL vidioc handling
-   ------------------------------------------------------------------*/
-static int vidioc_querycap(struct file *file, void  *priv,
-					struct v4l2_capability *cap)
-{
-	struct vivi_dev *dev = video_drvdata(file);
-
-	strcpy(cap->driver, "vivi");
-	strcpy(cap->card, "vivi");
-	strlcpy(cap->bus_info, dev->v4l2_dev.name, sizeof(cap->bus_info));
-	cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
-			    V4L2_CAP_READWRITE;
-	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
-	return 0;
-}
-
-static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
-					struct v4l2_fmtdesc *f)
-{
-	struct vivi_fmt *fmt;
-
-	if (f->index >= ARRAY_SIZE(formats))
-		return -EINVAL;
-
-	fmt = &formats[f->index];
-
-	strlcpy(f->description, fmt->name, sizeof(f->description));
-	f->pixelformat = fmt->fourcc;
-	return 0;
-}
-
-static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
-					struct v4l2_format *f)
-{
-	struct vivi_dev *dev = video_drvdata(file);
-
-	f->fmt.pix.width        = dev->width;
-	f->fmt.pix.height       = dev->height;
-	f->fmt.pix.field        = V4L2_FIELD_INTERLACED;
-	f->fmt.pix.pixelformat  = dev->fmt->fourcc;
-	f->fmt.pix.bytesperline =
-		(f->fmt.pix.width * dev->fmt->depth) >> 3;
-	f->fmt.pix.sizeimage =
-		f->fmt.pix.height * f->fmt.pix.bytesperline;
-	if (dev->fmt->is_yuv)
-		f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
-	else
-		f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
-	return 0;
-}
-
-static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
-			struct v4l2_format *f)
-{
-	struct vivi_dev *dev = video_drvdata(file);
-	struct vivi_fmt *fmt;
-
-	fmt = get_format(f);
-	if (!fmt) {
-		dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
-			f->fmt.pix.pixelformat);
-		f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
-		fmt = get_format(f);
-	}
-
-	f->fmt.pix.field = V4L2_FIELD_INTERLACED;
-	v4l_bound_align_image(&f->fmt.pix.width, 48, MAX_WIDTH, 2,
-			      &f->fmt.pix.height, 32, MAX_HEIGHT, 0, 0);
-	f->fmt.pix.bytesperline =
-		(f->fmt.pix.width * fmt->depth) >> 3;
-	f->fmt.pix.sizeimage =
-		f->fmt.pix.height * f->fmt.pix.bytesperline;
-	if (fmt->is_yuv)
-		f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
-	else
-		f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
-	f->fmt.pix.priv = 0;
-	return 0;
-}
-
-static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
-					struct v4l2_format *f)
-{
-	struct vivi_dev *dev = video_drvdata(file);
-	struct vb2_queue *q = &dev->vb_vidq;
-
-	int ret = vidioc_try_fmt_vid_cap(file, priv, f);
-	if (ret < 0)
-		return ret;
-
-	if (vb2_is_busy(q)) {
-		dprintk(dev, 1, "%s device busy\n", __func__);
-		return -EBUSY;
-	}
-
-	dev->fmt = get_format(f);
-	dev->pixelsize = dev->fmt->depth / 8;
-	dev->width = f->fmt.pix.width;
-	dev->height = f->fmt.pix.height;
-
-	return 0;
-}
-
-static int vidioc_enum_framesizes(struct file *file, void *fh,
-					 struct v4l2_frmsizeenum *fsize)
-{
-	static const struct v4l2_frmsize_stepwise sizes = {
-		48, MAX_WIDTH, 4,
-		32, MAX_HEIGHT, 1
-	};
-	int i;
-
-	if (fsize->index)
-		return -EINVAL;
-	for (i = 0; i < ARRAY_SIZE(formats); i++)
-		if (formats[i].fourcc == fsize->pixel_format)
-			break;
-	if (i == ARRAY_SIZE(formats))
-		return -EINVAL;
-	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
-	fsize->stepwise = sizes;
-	return 0;
-}
-
-/* only one input in this sample driver */
-static int vidioc_enum_input(struct file *file, void *priv,
-				struct v4l2_input *inp)
-{
-	if (inp->index >= NUM_INPUTS)
-		return -EINVAL;
-
-	inp->type = V4L2_INPUT_TYPE_CAMERA;
-	sprintf(inp->name, "Camera %u", inp->index);
-	return 0;
-}
-
-static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
-{
-	struct vivi_dev *dev = video_drvdata(file);
-
-	*i = dev->input;
-	return 0;
-}
-
-static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
-{
-	struct vivi_dev *dev = video_drvdata(file);
-
-	if (i >= NUM_INPUTS)
-		return -EINVAL;
-
-	if (i == dev->input)
-		return 0;
-
-	dev->input = i;
-	precalculate_bars(dev);
-	precalculate_line(dev);
-	return 0;
-}
-
-/* --- controls ---------------------------------------------- */
-
-static int vivi_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
-{
-	struct vivi_dev *dev = container_of(ctrl->handler, struct vivi_dev, ctrl_handler);
-
-	if (ctrl == dev->autogain)
-		dev->gain->val = jiffies & 0xff;
-	return 0;
-}
-
-static int vivi_s_ctrl(struct v4l2_ctrl *ctrl)
-{
-	struct vivi_dev *dev = container_of(ctrl->handler, struct vivi_dev, ctrl_handler);
-
-	switch (ctrl->id) {
-	case V4L2_CID_ALPHA_COMPONENT:
-		dev->alpha_component = ctrl->val;
-		break;
-	default:
-		if (ctrl == dev->button)
-			dev->button_pressed = 30;
-		break;
-	}
-	return 0;
-}
-
-/* ------------------------------------------------------------------
-	File operations for the device
-   ------------------------------------------------------------------*/
-
-static const struct v4l2_ctrl_ops vivi_ctrl_ops = {
-	.g_volatile_ctrl = vivi_g_volatile_ctrl,
-	.s_ctrl = vivi_s_ctrl,
-};
-
-#define VIVI_CID_CUSTOM_BASE	(V4L2_CID_USER_BASE | 0xf000)
-
-static const struct v4l2_ctrl_config vivi_ctrl_button = {
-	.ops = &vivi_ctrl_ops,
-	.id = VIVI_CID_CUSTOM_BASE + 0,
-	.name = "Button",
-	.type = V4L2_CTRL_TYPE_BUTTON,
-};
-
-static const struct v4l2_ctrl_config vivi_ctrl_boolean = {
-	.ops = &vivi_ctrl_ops,
-	.id = VIVI_CID_CUSTOM_BASE + 1,
-	.name = "Boolean",
-	.type = V4L2_CTRL_TYPE_BOOLEAN,
-	.min = 0,
-	.max = 1,
-	.step = 1,
-	.def = 1,
-};
-
-static const struct v4l2_ctrl_config vivi_ctrl_int32 = {
-	.ops = &vivi_ctrl_ops,
-	.id = VIVI_CID_CUSTOM_BASE + 2,
-	.name = "Integer 32 Bits",
-	.type = V4L2_CTRL_TYPE_INTEGER,
-	.min = 0x80000000,
-	.max = 0x7fffffff,
-	.step = 1,
-};
-
-static const struct v4l2_ctrl_config vivi_ctrl_int64 = {
-	.ops = &vivi_ctrl_ops,
-	.id = VIVI_CID_CUSTOM_BASE + 3,
-	.name = "Integer 64 Bits",
-	.type = V4L2_CTRL_TYPE_INTEGER64,
-};
-
-static const char * const vivi_ctrl_menu_strings[] = {
-	"Menu Item 0 (Skipped)",
-	"Menu Item 1",
-	"Menu Item 2 (Skipped)",
-	"Menu Item 3",
-	"Menu Item 4",
-	"Menu Item 5 (Skipped)",
-	NULL,
-};
-
-static const struct v4l2_ctrl_config vivi_ctrl_menu = {
-	.ops = &vivi_ctrl_ops,
-	.id = VIVI_CID_CUSTOM_BASE + 4,
-	.name = "Menu",
-	.type = V4L2_CTRL_TYPE_MENU,
-	.min = 1,
-	.max = 4,
-	.def = 3,
-	.menu_skip_mask = 0x04,
-	.qmenu = vivi_ctrl_menu_strings,
-};
-
-static const struct v4l2_ctrl_config vivi_ctrl_string = {
-	.ops = &vivi_ctrl_ops,
-	.id = VIVI_CID_CUSTOM_BASE + 5,
-	.name = "String",
-	.type = V4L2_CTRL_TYPE_STRING,
-	.min = 2,
-	.max = 4,
-	.step = 1,
-};
-
-static const struct v4l2_ctrl_config vivi_ctrl_bitmask = {
-	.ops = &vivi_ctrl_ops,
-	.id = VIVI_CID_CUSTOM_BASE + 6,
-	.name = "Bitmask",
-	.type = V4L2_CTRL_TYPE_BITMASK,
-	.def = 0x80002000,
-	.min = 0,
-	.max = 0x80402010,
-	.step = 0,
-};
-
-static const s64 vivi_ctrl_int_menu_values[] = {
-	1, 1, 2, 3, 5, 8, 13, 21, 42,
-};
-
-static const struct v4l2_ctrl_config vivi_ctrl_int_menu = {
-	.ops = &vivi_ctrl_ops,
-	.id = VIVI_CID_CUSTOM_BASE + 7,
-	.name = "Integer menu",
-	.type = V4L2_CTRL_TYPE_INTEGER_MENU,
-	.min = 1,
-	.max = 8,
-	.def = 4,
-	.menu_skip_mask = 0x02,
-	.qmenu_int = vivi_ctrl_int_menu_values,
-};
-
-static const struct v4l2_file_operations vivi_fops = {
-	.owner		= THIS_MODULE,
-	.open           = v4l2_fh_open,
-	.release        = vb2_fop_release,
-	.read           = vb2_fop_read,
-	.poll		= vb2_fop_poll,
-	.unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
-	.mmap           = vb2_fop_mmap,
-};
-
-static const struct v4l2_ioctl_ops vivi_ioctl_ops = {
-	.vidioc_querycap      = vidioc_querycap,
-	.vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
-	.vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
-	.vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
-	.vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
-	.vidioc_enum_framesizes   = vidioc_enum_framesizes,
-	.vidioc_reqbufs       = vb2_ioctl_reqbufs,
-	.vidioc_create_bufs   = vb2_ioctl_create_bufs,
-	.vidioc_prepare_buf   = vb2_ioctl_prepare_buf,
-	.vidioc_querybuf      = vb2_ioctl_querybuf,
-	.vidioc_qbuf          = vb2_ioctl_qbuf,
-	.vidioc_dqbuf         = vb2_ioctl_dqbuf,
-	.vidioc_enum_input    = vidioc_enum_input,
-	.vidioc_g_input       = vidioc_g_input,
-	.vidioc_s_input       = vidioc_s_input,
-	.vidioc_streamon      = vb2_ioctl_streamon,
-	.vidioc_streamoff     = vb2_ioctl_streamoff,
-	.vidioc_log_status    = v4l2_ctrl_log_status,
-	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
-	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
-};
-
-static struct video_device vivi_template = {
-	.name		= "vivi",
-	.fops           = &vivi_fops,
-	.ioctl_ops 	= &vivi_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
-/* -----------------------------------------------------------------
-	Initialization and module stuff
-   ------------------------------------------------------------------*/
-
-static int vivi_release(void)
-{
-	struct vivi_dev *dev;
-	struct list_head *list;
-
-	while (!list_empty(&vivi_devlist)) {
-		list = vivi_devlist.next;
-		list_del(list);
-		dev = list_entry(list, struct vivi_dev, vivi_devlist);
-
-		v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
-			video_device_node_name(&dev->vdev));
-		video_unregister_device(&dev->vdev);
-		v4l2_device_unregister(&dev->v4l2_dev);
-		v4l2_ctrl_handler_free(&dev->ctrl_handler);
-		kfree(dev);
-	}
-
-	return 0;
-}
-
-static int __init vivi_create_instance(int inst)
-{
-	struct vivi_dev *dev;
-	struct video_device *vfd;
-	struct v4l2_ctrl_handler *hdl;
-	struct vb2_queue *q;
-	int ret;
-
-	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-	if (!dev)
-		return -ENOMEM;
-
-	snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name),
-			"%s-%03d", VIVI_MODULE_NAME, inst);
-	ret = v4l2_device_register(NULL, &dev->v4l2_dev);
-	if (ret)
-		goto free_dev;
-
-	dev->fmt = &formats[0];
-	dev->width = 640;
-	dev->height = 480;
-	dev->pixelsize = dev->fmt->depth / 8;
-	hdl = &dev->ctrl_handler;
-	v4l2_ctrl_handler_init(hdl, 11);
-	dev->volume = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
-			V4L2_CID_AUDIO_VOLUME, 0, 255, 1, 200);
-	dev->brightness = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
-			V4L2_CID_BRIGHTNESS, 0, 255, 1, 127);
-	dev->contrast = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
-			V4L2_CID_CONTRAST, 0, 255, 1, 16);
-	dev->saturation = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
-			V4L2_CID_SATURATION, 0, 255, 1, 127);
-	dev->hue = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
-			V4L2_CID_HUE, -128, 127, 1, 0);
-	dev->autogain = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
-			V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
-	dev->gain = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
-			V4L2_CID_GAIN, 0, 255, 1, 100);
-	dev->alpha = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,
-			V4L2_CID_ALPHA_COMPONENT, 0, 255, 1, 0);
-	dev->button = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_button, NULL);
-	dev->int32 = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_int32, NULL);
-	dev->int64 = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_int64, NULL);
-	dev->boolean = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_boolean, NULL);
-	dev->menu = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_menu, NULL);
-	dev->string = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_string, NULL);
-	dev->bitmask = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_bitmask, NULL);
-	dev->int_menu = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_int_menu, NULL);
-	if (hdl->error) {
-		ret = hdl->error;
-		goto unreg_dev;
-	}
-	v4l2_ctrl_auto_cluster(2, &dev->autogain, 0, true);
-	dev->v4l2_dev.ctrl_handler = hdl;
-
-	/* initialize locks */
-	spin_lock_init(&dev->slock);
-
-	/* initialize queue */
-	q = &dev->vb_vidq;
-	memset(q, 0, sizeof(dev->vb_vidq));
-	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
-	q->drv_priv = dev;
-	q->buf_struct_size = sizeof(struct vivi_buffer);
-	q->ops = &vivi_video_qops;
-	q->mem_ops = &vb2_vmalloc_memops;
-
-	vb2_queue_init(q);
-
-	mutex_init(&dev->mutex);
-
-	/* init video dma queues */
-	INIT_LIST_HEAD(&dev->vidq.active);
-	init_waitqueue_head(&dev->vidq.wq);
-
-	vfd = &dev->vdev;
-	*vfd = vivi_template;
-	vfd->debug = debug;
-	vfd->v4l2_dev = &dev->v4l2_dev;
-	vfd->queue = q;
-	set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags);
-
-	/*
-	 * Provide a mutex to v4l2 core. It will be used to protect
-	 * all fops and v4l2 ioctls.
-	 */
-	vfd->lock = &dev->mutex;
-	video_set_drvdata(vfd, dev);
-
-	ret = video_register_device(vfd, VFL_TYPE_GRABBER, video_nr);
-	if (ret < 0)
-		goto unreg_dev;
-
-	/* Now that everything is fine, let's add it to device list */
-	list_add_tail(&dev->vivi_devlist, &vivi_devlist);
-
-	v4l2_info(&dev->v4l2_dev, "V4L2 device registered as %s\n",
-		  video_device_node_name(vfd));
-	return 0;
-
-unreg_dev:
-	v4l2_ctrl_handler_free(hdl);
-	v4l2_device_unregister(&dev->v4l2_dev);
-free_dev:
-	kfree(dev);
-	return ret;
-}
-
-/* This routine allocates from 1 to n_devs virtual drivers.
-
-   The real maximum number of virtual drivers will depend on how many drivers
-   will succeed. This is limited to the maximum number of devices that
-   videodev supports, which is equal to VIDEO_NUM_DEVICES.
- */
-static int __init vivi_init(void)
-{
-	const struct font_desc *font = find_font("VGA8x16");
-	int ret = 0, i;
-
-	if (font == NULL) {
-		printk(KERN_ERR "vivi: could not find font\n");
-		return -ENODEV;
-	}
-	font8x16 = font->data;
-
-	if (n_devs <= 0)
-		n_devs = 1;
-
-	for (i = 0; i < n_devs; i++) {
-		ret = vivi_create_instance(i);
-		if (ret) {
-			/* If some instantiations succeeded, keep driver */
-			if (i)
-				ret = 0;
-			break;
-		}
-	}
-
-	if (ret < 0) {
-		printk(KERN_ERR "vivi: error %d while loading driver\n", ret);
-		return ret;
-	}
-
-	printk(KERN_INFO "Video Technology Magazine Virtual Video "
-			"Capture Board ver %s successfully loaded.\n",
-			VIVI_VERSION);
-
-	/* n_devs will reflect the actual number of allocated devices */
-	n_devs = i;
-
-	return ret;
-}
-
-static void __exit vivi_exit(void)
-{
-	vivi_release();
-}
-
-module_init(vivi_init);
-module_exit(vivi_exit);