V4L/DVB: Remove obsolete stv680 v4l1 driver

obsolete v4l1 driver replaced by gspca_stv0680

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

1 files changed, 0 insertions, 1565 deletions

diff --git a/drivers/media/video/stv680.c b/drivers/media/video/stv680.c
deleted file mode 100644
index 5938ad8..0000000
--- a/drivers/media/video/stv680.c
+++ /dev/null
@@ -1,1565 +0,0 @@
-/*
- *  STV0680 USB Camera Driver, by Kevin Sisson (kjsisson@bellsouth.net)
- *
- * Thanks to STMicroelectronics for information on the usb commands, and
- * to Steve Miller at STM for his help and encouragement while I was
- * writing this driver.
- *
- * This driver is based heavily on the
- * Endpoints (formerly known as AOX) se401 USB Camera Driver
- * Copyright (c) 2000 Jeroen B. Vreeken (pe1rxq@amsat.org)
- *
- * Still somewhat based on the Linux ov511 driver.
- *
- * 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.
- *
- * History:
- * ver 0.1 October, 2001. Initial attempt.
- *
- * ver 0.2 November, 2001. Fixed asbility to resize, added brightness
- *                         function, made more stable (?)
- *
- * ver 0.21 Nov, 2001.     Added gamma correction and white balance,
- *                         due to Alexander Schwartz. Still trying to
- *                         improve stablility. Moved stuff into stv680.h
- *
- * ver 0.22 Nov, 2001.	   Added sharpen function (by Michael Sweet,
- *                         mike@easysw.com) from GIMP, also used in pencam.
- *                         Simple, fast, good integer math routine.
- *
- * ver 0.23 Dec, 2001 (gkh)
- * 			   Took out sharpen function, ran code through
- * 			   Lindent, and did other minor tweaks to get
- * 			   things to work properly with 2.5.1
- *
- * ver 0.24 Jan, 2002 (kjs)
- *                         Fixed the problem with webcam crashing after
- *                         two pictures. Changed the way pic is halved to
- *                         improve quality. Got rid of green line around
- *                         frame. Fix brightness reset when changing size
- *                         bug. Adjusted gamma filters slightly.
- *
- * ver 0.25 Jan, 2002 (kjs)
- *			   Fixed a bug in which the driver sometimes attempted
- *			   to set to a non-supported size. This allowed
- *			   gnomemeeting to work.
- *			   Fixed proc entry removal bug.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/vmalloc.h>
-#include <linux/slab.h>
-#include <linux/smp_lock.h>
-#include <linux/pagemap.h>
-#include <linux/errno.h>
-#include <linux/videodev.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
-#include <linux/usb.h>
-#include <linux/mutex.h>
-
-#include "stv680.h"
-
-static int video_nr = -1;
-
-static int swapRGB;	/* 0 = default for auto select */
-
-/* 0 = default to allow auto select; -1 = swap never, +1 = swap always */
-static int swapRGB_on;
-
-static unsigned int debug;
-
-#define PDEBUG(level, fmt, args...) \
-	do { \
-	if (debug >= level)	\
-		printk(KERN_INFO KBUILD_MODNAME " [%s:%d] \n" fmt,	\
-			__func__, __LINE__ , ## args);	\
-	} while (0)
-
-
-/*
- * Version Information
- */
-#define DRIVER_VERSION "v0.25"
-#define DRIVER_AUTHOR "Kevin Sisson <kjsisson@bellsouth.net>"
-#define DRIVER_DESC "STV0680 USB Camera Driver"
-
-MODULE_AUTHOR (DRIVER_AUTHOR);
-MODULE_DESCRIPTION (DRIVER_DESC);
-MODULE_LICENSE ("GPL");
-module_param(debug, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC (debug, "Debug enabled or not");
-module_param(swapRGB_on, int, 0);
-MODULE_PARM_DESC (swapRGB_on, "Red/blue swap: 1=always, 0=auto, -1=never");
-module_param(video_nr, int, 0);
-
-/********************************************************************
- *
- * Memory management
- *
- * This is a shameless copy from the USB-cpia driver (linux kernel
- * version 2.3.29 or so, I have no idea what this code actually does ;).
- * Actually it seems to be a copy of a shameless copy of the bttv-driver.
- * Or that is a copy of a shameless copy of ... (To the powers: is there
- * no generic kernel-function to do this sort of stuff?)
- *
- * Yes, it was a shameless copy from the bttv-driver. IIRC, Alan says
- * there will be one, but apparentely not yet -jerdfelt
- *
- * So I copied it again for the ov511 driver -claudio
- *
- * Same for the se401 driver -Jeroen
- *
- * And the STV0680 driver - Kevin
- ********************************************************************/
-static void *rvmalloc (unsigned long size)
-{
-	void *mem;
-	unsigned long adr;
-
-	size = PAGE_ALIGN(size);
-	mem = vmalloc_32 (size);
-	if (!mem)
-		return NULL;
-
-	memset (mem, 0, size);	/* Clear the ram out, no junk to the user */
-	adr = (unsigned long) mem;
-	while (size > 0) {
-		SetPageReserved(vmalloc_to_page((void *)adr));
-		adr += PAGE_SIZE;
-		size -= PAGE_SIZE;
-	}
-	return mem;
-}
-
-static void rvfree (void *mem, unsigned long size)
-{
-	unsigned long adr;
-
-	if (!mem)
-		return;
-
-	adr = (unsigned long) mem;
-	while ((long) size > 0) {
-		ClearPageReserved(vmalloc_to_page((void *)adr));
-		adr += PAGE_SIZE;
-		size -= PAGE_SIZE;
-	}
-	vfree (mem);
-}
-
-
-/*********************************************************************
- * pencam read/write functions
- ********************************************************************/
-
-static int stv_sndctrl (int set, struct usb_stv *stv680, unsigned short req, unsigned short value, unsigned char *buffer, int size)
-{
-	int ret = -1;
-
-	switch (set) {
-	case 0:		/*  0xc1  */
-		ret = usb_control_msg (stv680->udev,
-				       usb_rcvctrlpipe (stv680->udev, 0),
-				       req,
-				       (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT),
-				       value, 0, buffer, size, PENCAM_TIMEOUT);
-		break;
-
-	case 1:		/*  0x41  */
-		ret = usb_control_msg (stv680->udev,
-				       usb_sndctrlpipe (stv680->udev, 0),
-				       req,
-				       (USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT),
-				       value, 0, buffer, size, PENCAM_TIMEOUT);
-		break;
-
-	case 2:		/*  0x80  */
-		ret = usb_control_msg (stv680->udev,
-				       usb_rcvctrlpipe (stv680->udev, 0),
-				       req,
-				       (USB_DIR_IN | USB_RECIP_DEVICE),
-				       value, 0, buffer, size, PENCAM_TIMEOUT);
-		break;
-
-	case 3:		/*  0x40  */
-		ret = usb_control_msg (stv680->udev,
-				       usb_sndctrlpipe (stv680->udev, 0),
-				       req,
-				       (USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE),
-				       value, 0, buffer, size, PENCAM_TIMEOUT);
-		break;
-
-	}
-	if ((ret < 0) && (req != 0x0a)) {
-		PDEBUG (1, "STV(e): usb_control_msg error %i, request = 0x%x, error = %i", set, req, ret);
-	}
-	return ret;
-}
-
-static int stv_set_config (struct usb_stv *dev, int configuration, int interface, int alternate)
-{
-
-	if (configuration != dev->udev->actconfig->desc.bConfigurationValue
-			|| usb_reset_configuration (dev->udev) < 0) {
-		PDEBUG (1, "STV(e): FAILED to reset configuration %i", configuration);
-		return -1;
-	}
-	if (usb_set_interface (dev->udev, interface, alternate) < 0) {
-		PDEBUG (1, "STV(e): FAILED to set alternate interface %i", alternate);
-		return -1;
-	}
-	return 0;
-}
-
-static int stv_stop_video (struct usb_stv *dev)
-{
-	int i;
-	unsigned char *buf;
-
-	buf = kmalloc (40, GFP_KERNEL);
-	if (buf == NULL) {
-		PDEBUG (0, "STV(e): Out of (small buf) memory");
-		return -1;
-	}
-
-	/* this is a high priority command; it stops all lower order commands */
-	if ((i = stv_sndctrl (1, dev, 0x04, 0x0000, buf, 0x0)) < 0) {
-		i = stv_sndctrl (0, dev, 0x80, 0, buf, 0x02);	/* Get Last Error; 2 = busy */
-		PDEBUG (1, "STV(i): last error: %i,  command = 0x%x", buf[0], buf[1]);
-	} else {
-		PDEBUG (1, "STV(i): Camera reset to idle mode.");
-	}
-
-	if ((i = stv_set_config (dev, 1, 0, 0)) < 0)
-		PDEBUG (1, "STV(e): Reset config during exit failed");
-
-	/*  get current mode  */
-	buf[0] = 0xf0;
-	if ((i = stv_sndctrl (0, dev, 0x87, 0, buf, 0x08)) != 0x08)	/* get mode */
-		PDEBUG (0, "STV(e): Stop_video: problem setting original mode");
-	if (dev->origMode != buf[0]) {
-		memset (buf, 0, 8);
-		buf[0] = (unsigned char) dev->origMode;
-		if ((i = stv_sndctrl (3, dev, 0x07, 0x0100, buf, 0x08)) != 0x08) {
-			PDEBUG (0, "STV(e): Stop_video: Set_Camera_Mode failed");
-			i = -1;
-		}
-		buf[0] = 0xf0;
-		i = stv_sndctrl (0, dev, 0x87, 0, buf, 0x08);
-		if ((i != 0x08) || (buf[0] != dev->origMode)) {
-			PDEBUG (0, "STV(e): camera NOT set to original resolution.");
-			i = -1;
-		} else
-			PDEBUG (0, "STV(i): Camera set to original resolution");
-	}
-	/* origMode */
-	kfree(buf);
-	return i;
-}
-
-static int stv_set_video_mode (struct usb_stv *dev)
-{
-	int i, stop_video = 1;
-	unsigned char *buf;
-
-	buf = kmalloc (40, GFP_KERNEL);
-	if (buf == NULL) {
-		PDEBUG (0, "STV(e): Out of (small buf) memory");
-		return -1;
-	}
-
-	if ((i = stv_set_config (dev, 1, 0, 0)) < 0) {
-		kfree(buf);
-		return i;
-	}
-
-	i = stv_sndctrl (2, dev, 0x06, 0x0100, buf, 0x12);
-	if (!(i > 0) && (buf[8] == 0x53) && (buf[9] == 0x05)) {
-		PDEBUG (1, "STV(e): Could not get descriptor 0100.");
-		goto error;
-	}
-
-	/*  set alternate interface 1 */
-	if ((i = stv_set_config (dev, 1, 0, 1)) < 0)
-		goto error;
-
-	if ((i = stv_sndctrl (0, dev, 0x85, 0, buf, 0x10)) != 0x10)
-		goto error;
-	PDEBUG (1, "STV(i): Setting video mode.");
-	/*  Switch to Video mode: 0x0100 = VGA (640x480), 0x0000 = CIF (352x288) 0x0300 = QVGA (320x240)  */
-	if ((i = stv_sndctrl (1, dev, 0x09, dev->VideoMode, buf, 0x0)) < 0) {
-		stop_video = 0;
-		goto error;
-	}
-	goto exit;
-
-error:
-	kfree(buf);
-	if (stop_video == 1)
-		stv_stop_video (dev);
-	return -1;
-
-exit:
-	kfree(buf);
-	return 0;
-}
-
-static int stv_init (struct usb_stv *stv680)
-{
-	int i = 0;
-	unsigned char *buffer;
-	unsigned long int bufsize;
-
-	buffer = kzalloc (40, GFP_KERNEL);
-	if (buffer == NULL) {
-		PDEBUG (0, "STV(e): Out of (small buf) memory");
-		return -1;
-	}
-	udelay (100);
-
-	/* set config 1, interface 0, alternate 0 */
-	if ((i = stv_set_config (stv680, 1, 0, 0)) < 0) {
-		kfree(buffer);
-		PDEBUG (0, "STV(e): set config 1,0,0 failed");
-		return -1;
-	}
-	/* ping camera to be sure STV0680 is present */
-	if ((i = stv_sndctrl (0, stv680, 0x88, 0x5678, buffer, 0x02)) != 0x02)
-		goto error;
-	if ((buffer[0] != 0x56) || (buffer[1] != 0x78)) {
-		PDEBUG (1, "STV(e): camera ping failed!!");
-		goto error;
-	}
-
-	/* get camera descriptor */
-	if ((i = stv_sndctrl (2, stv680, 0x06, 0x0200, buffer, 0x09)) != 0x09)
-		goto error;
-	i = stv_sndctrl (2, stv680, 0x06, 0x0200, buffer, 0x22);
-	if (!(i >= 0) && (buffer[7] == 0xa0) && (buffer[8] == 0x23)) {
-		PDEBUG (1, "STV(e): Could not get descriptor 0200.");
-		goto error;
-	}
-	if ((i = stv_sndctrl (0, stv680, 0x8a, 0, buffer, 0x02)) != 0x02)
-		goto error;
-	if ((i = stv_sndctrl (0, stv680, 0x8b, 0, buffer, 0x24)) != 0x24)
-		goto error;
-	if ((i = stv_sndctrl (0, stv680, 0x85, 0, buffer, 0x10)) != 0x10)
-		goto error;
-
-	stv680->SupportedModes = buffer[7];
-	i = stv680->SupportedModes;
-	stv680->CIF = 0;
-	stv680->VGA = 0;
-	stv680->QVGA = 0;
-	if (i & 1)
-		stv680->CIF = 1;
-	if (i & 2)
-		stv680->VGA = 1;
-	if (i & 8)
-		stv680->QVGA = 1;
-	if (stv680->SupportedModes == 0) {
-		PDEBUG (0, "STV(e): There are NO supported STV680 modes!!");
-		i = -1;
-		goto error;
-	} else {
-		if (stv680->CIF)
-			PDEBUG (0, "STV(i): CIF is supported");
-		if (stv680->QVGA)
-			PDEBUG (0, "STV(i): QVGA is supported");
-	}
-	/* FW rev, ASIC rev, sensor ID  */
-	PDEBUG (1, "STV(i): Firmware rev is %i.%i", buffer[0], buffer[1]);
-	PDEBUG (1, "STV(i): ASIC rev is %i.%i", buffer[2], buffer[3]);
-	PDEBUG (1, "STV(i): Sensor ID is %i", (buffer[4]*16) + (buffer[5]>>4));
-
-	/*  set alternate interface 1 */
-	if ((i = stv_set_config (stv680, 1, 0, 1)) < 0)
-		goto error;
-
-	if ((i = stv_sndctrl (0, stv680, 0x85, 0, buffer, 0x10)) != 0x10)
-		goto error;
-	if ((i = stv_sndctrl (0, stv680, 0x8d, 0, buffer, 0x08)) != 0x08)
-		goto error;
-	i = buffer[3];
-	PDEBUG (0, "STV(i): Camera has %i pictures.", i);
-
-	/*  get current mode */
-	if ((i = stv_sndctrl (0, stv680, 0x87, 0, buffer, 0x08)) != 0x08)
-		goto error;
-	stv680->origMode = buffer[0];	/* 01 = VGA, 03 = QVGA, 00 = CIF */
-
-	/* This will attemp CIF mode, if supported. If not, set to QVGA  */
-	memset (buffer, 0, 8);
-	if (stv680->CIF)
-		buffer[0] = 0x00;
-	else if (stv680->QVGA)
-		buffer[0] = 0x03;
-	if ((i = stv_sndctrl (3, stv680, 0x07, 0x0100, buffer, 0x08)) != 0x08) {
-		PDEBUG (0, "STV(i): Set_Camera_Mode failed");
-		i = -1;
-		goto error;
-	}
-	buffer[0] = 0xf0;
-	stv_sndctrl (0, stv680, 0x87, 0, buffer, 0x08);
-	if (((stv680->CIF == 1) && (buffer[0] != 0x00)) || ((stv680->QVGA == 1) && (buffer[0] != 0x03))) {
-		PDEBUG (0, "STV(e): Error setting camera video mode!");
-		i = -1;
-		goto error;
-	} else {
-		if (buffer[0] == 0) {
-			stv680->VideoMode = 0x0000;
-			PDEBUG (0, "STV(i): Video Mode set to CIF");
-		}
-		if (buffer[0] == 0x03) {
-			stv680->VideoMode = 0x0300;
-			PDEBUG (0, "STV(i): Video Mode set to QVGA");
-		}
-	}
-	if ((i = stv_sndctrl (0, stv680, 0x8f, 0, buffer, 0x10)) != 0x10)
-		goto error;
-	bufsize = (buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | (buffer[3]);
-	stv680->cwidth = (buffer[4] << 8) | (buffer[5]);	/* ->camera = 322, 356, 644  */
-	stv680->cheight = (buffer[6] << 8) | (buffer[7]);	/* ->camera = 242, 292, 484  */
-	stv680->origGain = buffer[12];
-
-	goto exit;
-
-error:
-	i = stv_sndctrl (0, stv680, 0x80, 0, buffer, 0x02);	/* Get Last Error */
-	PDEBUG (1, "STV(i): last error: %i,  command = 0x%x", buffer[0], buffer[1]);
-	kfree(buffer);
-	return -1;
-
-exit:
-	kfree(buffer);
-
-	/* video = 320x240, 352x288 */
-	if (stv680->CIF == 1) {
-		stv680->maxwidth = 352;
-		stv680->maxheight = 288;
-		stv680->vwidth = 352;
-		stv680->vheight = 288;
-	}
-	if (stv680->QVGA == 1) {
-		stv680->maxwidth = 320;
-		stv680->maxheight = 240;
-		stv680->vwidth = 320;
-		stv680->vheight = 240;
-	}
-
-	stv680->rawbufsize = bufsize;	/* must be ./. by 8 */
-	stv680->maxframesize = bufsize * 3;	/* RGB size */
-	PDEBUG (2, "STV(i): cwidth = %i, cheight = %i", stv680->cwidth, stv680->cheight);
-	PDEBUG (1, "STV(i): width = %i, height = %i, rawbufsize = %li", stv680->vwidth, stv680->vheight, stv680->rawbufsize);
-
-	/* some default values */
-	stv680->bulk_in_endpointAddr = 0x82;
-	stv680->dropped = 0;
-	stv680->error = 0;
-	stv680->framecount = 0;
-	stv680->readcount = 0;
-	stv680->streaming = 0;
-	/* bright, white, colour, hue, contrast are set by software, not in stv0680 */
-	stv680->brightness = 32767;
-	stv680->chgbright = 0;
-	stv680->whiteness = 0;	/* only for greyscale */
-	stv680->colour = 32767;
-	stv680->contrast = 32767;
-	stv680->hue = 32767;
-	stv680->palette = STV_VIDEO_PALETTE;
-	stv680->depth = 24;	/* rgb24 bits */
-	if ((swapRGB_on == 0) && (swapRGB == 0))
-		PDEBUG (1, "STV(i): swapRGB is (auto) OFF");
-	else if ((swapRGB_on == 0) && (swapRGB == 1))
-		PDEBUG (1, "STV(i): swapRGB is (auto) ON");
-	else if (swapRGB_on == 1)
-		PDEBUG (1, "STV(i): swapRGB is (forced) ON");
-	else if (swapRGB_on == -1)
-		PDEBUG (1, "STV(i): swapRGB is (forced) OFF");
-
-	if (stv_set_video_mode (stv680) < 0) {
-		PDEBUG (0, "STV(e): Could not set video mode in stv_init");
-		return -1;
-	}
-
-	return 0;
-}
-
-/***************** last of pencam  routines  *******************/
-
-/****************************************************************************
- *  sysfs
- ***************************************************************************/
-#define stv680_file(name, variable, field)				\
-static ssize_t show_##name(struct device *class_dev,			\
-			   struct device_attribute *attr, char *buf)	\
-{									\
-	struct video_device *vdev = to_video_device(class_dev);		\
-	struct usb_stv *stv = video_get_drvdata(vdev);			\
-	return sprintf(buf, field, stv->variable);			\
-}									\
-static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
-
-stv680_file(model, camera_name, "%s\n");
-stv680_file(in_use, user, "%d\n");
-stv680_file(streaming, streaming, "%d\n");
-stv680_file(palette, palette, "%i\n");
-stv680_file(frames_total, readcount, "%d\n");
-stv680_file(frames_read, framecount, "%d\n");
-stv680_file(packets_dropped, dropped, "%d\n");
-stv680_file(decoding_errors, error, "%d\n");
-
-static int stv680_create_sysfs_files(struct video_device *vdev)
-{
-	int rc;
-
-	rc = device_create_file(&vdev->dev, &dev_attr_model);
-	if (rc) goto err;
-	rc = device_create_file(&vdev->dev, &dev_attr_in_use);
-	if (rc) goto err_model;
-	rc = device_create_file(&vdev->dev, &dev_attr_streaming);
-	if (rc) goto err_inuse;
-	rc = device_create_file(&vdev->dev, &dev_attr_palette);
-	if (rc) goto err_stream;
-	rc = device_create_file(&vdev->dev, &dev_attr_frames_total);
-	if (rc) goto err_pal;
-	rc = device_create_file(&vdev->dev, &dev_attr_frames_read);
-	if (rc) goto err_framtot;
-	rc = device_create_file(&vdev->dev, &dev_attr_packets_dropped);
-	if (rc) goto err_framread;
-	rc = device_create_file(&vdev->dev, &dev_attr_decoding_errors);
-	if (rc) goto err_dropped;
-
-	return 0;
-
-err_dropped:
-	device_remove_file(&vdev->dev, &dev_attr_packets_dropped);
-err_framread:
-	device_remove_file(&vdev->dev, &dev_attr_frames_read);
-err_framtot:
-	device_remove_file(&vdev->dev, &dev_attr_frames_total);
-err_pal:
-	device_remove_file(&vdev->dev, &dev_attr_palette);
-err_stream:
-	device_remove_file(&vdev->dev, &dev_attr_streaming);
-err_inuse:
-	device_remove_file(&vdev->dev, &dev_attr_in_use);
-err_model:
-	device_remove_file(&vdev->dev, &dev_attr_model);
-err:
-	PDEBUG(0, "STV(e): Could not create sysfs files");
-	return rc;
-}
-
-static void stv680_remove_sysfs_files(struct video_device *vdev)
-{
-	device_remove_file(&vdev->dev, &dev_attr_model);
-	device_remove_file(&vdev->dev, &dev_attr_in_use);
-	device_remove_file(&vdev->dev, &dev_attr_streaming);
-	device_remove_file(&vdev->dev, &dev_attr_palette);
-	device_remove_file(&vdev->dev, &dev_attr_frames_total);
-	device_remove_file(&vdev->dev, &dev_attr_frames_read);
-	device_remove_file(&vdev->dev, &dev_attr_packets_dropped);
-	device_remove_file(&vdev->dev, &dev_attr_decoding_errors);
-}
-
-/********************************************************************
- * Camera control
- *******************************************************************/
-
-static int stv680_get_pict (struct usb_stv *stv680, struct video_picture *p)
-{
-	/* This sets values for v4l interface. max/min = 65535/0  */
-
-	p->brightness = stv680->brightness;
-	p->whiteness = stv680->whiteness;	/* greyscale */
-	p->colour = stv680->colour;
-	p->contrast = stv680->contrast;
-	p->hue = stv680->hue;
-	p->palette = stv680->palette;
-	p->depth = stv680->depth;
-	return 0;
-}
-
-static int stv680_set_pict (struct usb_stv *stv680, struct video_picture *p)
-{
-	/* See above stv680_get_pict  */
-
-	if (p->palette != STV_VIDEO_PALETTE) {
-		PDEBUG (2, "STV(e): Palette set error in _set_pic");
-		return 1;
-	}
-
-	if (stv680->brightness != p->brightness) {
-		stv680->chgbright = 1;
-		stv680->brightness = p->brightness;
-	}
-
-	stv680->whiteness = p->whiteness;	/* greyscale */
-	stv680->colour = p->colour;
-	stv680->contrast = p->contrast;
-	stv680->hue = p->hue;
-	stv680->palette = p->palette;
-	stv680->depth = p->depth;
-
-	return 0;
-}
-
-static void stv680_video_irq (struct urb *urb)
-{
-	struct usb_stv *stv680 = urb->context;
-	int length = urb->actual_length;
-
-	if (length < stv680->rawbufsize)
-		PDEBUG (2, "STV(i): Lost data in transfer: exp %li, got %i", stv680->rawbufsize, length);
-
-	/* ohoh... */
-	if (!stv680->streaming)
-		return;
-
-	if (!stv680->udev) {
-		PDEBUG (0, "STV(e): device vapourished in video_irq");
-		return;
-	}
-
-	/* 0 sized packets happen if we are to fast, but sometimes the camera
-	   keeps sending them forever...
-	 */
-	if (length && !urb->status) {
-		stv680->nullpackets = 0;
-		switch (stv680->scratch[stv680->scratch_next].state) {
-		case BUFFER_READY:
-		case BUFFER_BUSY:
-			stv680->dropped++;
-			break;
-
-		case BUFFER_UNUSED:
-			memcpy (stv680->scratch[stv680->scratch_next].data,
-				(unsigned char *) urb->transfer_buffer, length);
-			stv680->scratch[stv680->scratch_next].state = BUFFER_READY;
-			stv680->scratch[stv680->scratch_next].length = length;
-			if (waitqueue_active (&stv680->wq)) {
-				wake_up_interruptible (&stv680->wq);
-			}
-			stv680->scratch_overflow = 0;
-			stv680->scratch_next++;
-			if (stv680->scratch_next >= STV680_NUMSCRATCH)
-				stv680->scratch_next = 0;
-			break;
-		}		/* switch  */
-	} else {
-		stv680->nullpackets++;
-		if (stv680->nullpackets > STV680_MAX_NULLPACKETS) {
-			if (waitqueue_active (&stv680->wq)) {
-				wake_up_interruptible (&stv680->wq);
-			}
-		}
-	}			/*  if - else */
-
-	/* Resubmit urb for new data */
-	urb->status = 0;
-	urb->dev = stv680->udev;
-	if (usb_submit_urb (urb, GFP_ATOMIC))
-		PDEBUG (0, "STV(e): urb burned down in video irq");
-	return;
-}				/*  _video_irq  */
-
-static int stv680_start_stream (struct usb_stv *stv680)
-{
-	struct urb *urb;
-	int err = 0, i;
-
-	stv680->streaming = 1;
-
-	/* Do some memory allocation */
-	for (i = 0; i < STV680_NUMFRAMES; i++) {
-		stv680->frame[i].data = stv680->fbuf + i * stv680->maxframesize;
-		stv680->frame[i].curpix = 0;
-	}
-	/* packet size = 4096  */
-	for (i = 0; i < STV680_NUMSBUF; i++) {
-		stv680->sbuf[i].data = kmalloc (stv680->rawbufsize, GFP_KERNEL);
-		if (stv680->sbuf[i].data == NULL) {
-			PDEBUG (0, "STV(e): Could not kmalloc raw data buffer %i", i);
-			goto nomem_err;
-		}
-	}
-
-	stv680->scratch_next = 0;
-	stv680->scratch_use = 0;
-	stv680->scratch_overflow = 0;
-	for (i = 0; i < STV680_NUMSCRATCH; i++) {
-		stv680->scratch[i].data = kmalloc (stv680->rawbufsize, GFP_KERNEL);
-		if (stv680->scratch[i].data == NULL) {
-			PDEBUG (0, "STV(e): Could not kmalloc raw scratch buffer %i", i);
-			goto nomem_err;
-		}
-		stv680->scratch[i].state = BUFFER_UNUSED;
-	}
-
-	for (i = 0; i < STV680_NUMSBUF; i++) {
-		urb = usb_alloc_urb (0, GFP_KERNEL);
-		if (!urb)
-			goto nomem_err;
-
-		/* sbuf is urb->transfer_buffer, later gets memcpyed to scratch */
-		usb_fill_bulk_urb (urb, stv680->udev,
-				   usb_rcvbulkpipe (stv680->udev, stv680->bulk_in_endpointAddr),
-				   stv680->sbuf[i].data, stv680->rawbufsize,
-				   stv680_video_irq, stv680);
-		stv680->urb[i] = urb;
-		err = usb_submit_urb (stv680->urb[i], GFP_KERNEL);
-		if (err) {
-			PDEBUG (0, "STV(e): urb burned down with err "
-				   "%d in start stream %d", err, i);
-			goto nomem_err;
-		}
-	}			/* i STV680_NUMSBUF */
-
-	stv680->framecount = 0;
-	return 0;
-
- nomem_err:
-	for (i = 0; i < STV680_NUMSBUF; i++) {
-		usb_kill_urb(stv680->urb[i]);
-		usb_free_urb(stv680->urb[i]);
-		stv680->urb[i] = NULL;
-		kfree(stv680->sbuf[i].data);
-		stv680->sbuf[i].data = NULL;
-	}
-	/* used in irq, free only as all URBs are dead */
-	for (i = 0; i < STV680_NUMSCRATCH; i++) {
-		kfree(stv680->scratch[i].data);
-		stv680->scratch[i].data = NULL;
-	}
-	return -ENOMEM;
-
-}
-
-static int stv680_stop_stream (struct usb_stv *stv680)
-{
-	int i;
-
-	if (!stv680->streaming || !stv680->udev)
-		return 1;
-
-	stv680->streaming = 0;
-
-	for (i = 0; i < STV680_NUMSBUF; i++)
-		if (stv680->urb[i]) {
-			usb_kill_urb (stv680->urb[i]);
-			usb_free_urb (stv680->urb[i]);
-			stv680->urb[i] = NULL;
-			kfree(stv680->sbuf[i].data);
-		}
-	for (i = 0; i < STV680_NUMSCRATCH; i++) {
-		kfree(stv680->scratch[i].data);
-		stv680->scratch[i].data = NULL;
-	}
-
-	return 0;
-}
-
-static int stv680_set_size (struct usb_stv *stv680, int width, int height)
-{
-	int wasstreaming = stv680->streaming;
-
-	/* Check to see if we need to change */
-	if ((stv680->vwidth == width) && (stv680->vheight == height))
-		return 0;
-
-	PDEBUG (1, "STV(i): size request for %i x %i", width, height);
-	/* Check for a valid mode */
-	if ((!width || !height) || ((width & 1) || (height & 1))) {
-		PDEBUG (1, "STV(e): set_size error: request: v.width = %i, v.height = %i  actual: stv.width = %i, stv.height = %i", width, height, stv680->vwidth, stv680->vheight);
-		return 1;
-	}
-
-	if ((width < (stv680->maxwidth / 2)) || (height < (stv680->maxheight / 2))) {
-		width = stv680->maxwidth / 2;
-		height = stv680->maxheight / 2;
-	} else if ((width >= 158) && (width <= 166) && (stv680->QVGA == 1)) {
-		width = 160;
-		height = 120;
-	} else if ((width >= 172) && (width <= 180) && (stv680->CIF == 1)) {
-		width = 176;
-		height = 144;
-	} else if ((width >= 318) && (width <= 350) && (stv680->QVGA == 1)) {
-		width = 320;
-		height = 240;
-	} else if ((width >= 350) && (width <= 358) && (stv680->CIF == 1)) {
-		width = 352;
-		height = 288;
-	} else {
-		PDEBUG (1, "STV(e): request for non-supported size: request: v.width = %i, v.height = %i  actual: stv.width = %i, stv.height = %i", width, height, stv680->vwidth, stv680->vheight);
-		return 1;
-	}
-
-	/* Stop a current stream and start it again at the new size */
-	if (wasstreaming)
-		stv680_stop_stream (stv680);
-	stv680->vwidth = width;
-	stv680->vheight = height;
-	PDEBUG (1, "STV(i): size set to %i x %i", stv680->vwidth, stv680->vheight);
-	if (wasstreaming)
-		stv680_start_stream (stv680);
-
-	return 0;
-}
-
-/**********************************************************************
- * Video Decoding
- **********************************************************************/
-
-/*******  routines from the pencam program; hey, they work!  ********/
-
-/*
- * STV0680 Vision Camera Chipset Driver
- * Copyright (C) 2000 Adam Harrison <adam@antispin.org>
-*/
-
-#define RED 0
-#define GREEN 1
-#define BLUE 2
-#define AD(x, y, w) (((y)*(w)+(x))*3)
-
-static void bayer_unshuffle (struct usb_stv *stv680, struct stv680_scratch *buffer)
-{
-	int x, y, i;
-	int w = stv680->cwidth;
-	int vw = stv680->cwidth, vh = stv680->cheight;
-	unsigned int p = 0;
-	int colour = 0, bayer = 0;
-	unsigned char *raw = buffer->data;
-	struct stv680_frame *frame = &stv680->frame[stv680->curframe];
-	unsigned char *output = frame->data;
-	unsigned char *temp = frame->data;
-	int offset = buffer->offset;
-
-	if (frame->curpix == 0) {
-		if (frame->grabstate == FRAME_READY) {
-			frame->grabstate = FRAME_GRABBING;
-		}
-	}
-	if (offset != frame->curpix) {	/* Regard frame as lost :( */
-		frame->curpix = 0;
-		stv680->error++;
-		return;
-	}
-
-	if ((stv680->vwidth == 320) || (stv680->vwidth == 160)) {
-		vw = 320;
-		vh = 240;
-	}
-	if ((stv680->vwidth == 352) || (stv680->vwidth == 176)) {
-		vw = 352;
-		vh = 288;
-	}
-
-	memset (output, 0, 3 * vw * vh);	/* clear output matrix. */
-
-	for (y = 0; y < vh; y++) {
-		for (x = 0; x < vw; x++) {
-			if (x & 1)
-				p = *(raw + y * w + (x >> 1));
-			else
-				p = *(raw + y * w + (x >> 1) + (w >> 1));
-
-			if (y & 1)
-				bayer = 2;
-			else
-				bayer = 0;
-			if (x & 1)
-				bayer++;
-
-			switch (bayer) {
-			case 0:
-			case 3:
-				colour = 1;
-				break;
-			case 1:
-				colour = 0;
-				break;
-			case 2:
-				colour = 2;
-				break;
-			}
-			i = (y * vw + x) * 3;
-			*(output + i + colour) = (unsigned char) p;
-		}		/* for x */
-
-	}			/* for y */
-
-	/****** gamma correction plus hardcoded white balance */
-	/* Thanks to Alexander Schwartx <alexander.schwartx@gmx.net> for this code.
-	   Correction values red[], green[], blue[], are generated by
-	   (pow(i/256.0, GAMMA)*255.0)*white balanceRGB where GAMMA=0.55, 1<i<255.
-	   White balance (RGB)= 1.0, 1.17, 1.48. Values are calculated as double float and
-	   converted to unsigned char. Values are in stv680.h  */
-
-	for (y = 0; y < vh; y++) {
-		for (x = 0; x < vw; x++) {
-			i = (y * vw + x) * 3;
-			*(output + i) = red[*(output + i)];
-			*(output + i + 1) = green[*(output + i + 1)];
-			*(output + i + 2) = blue[*(output + i + 2)];
-		}
-	}
-
-	/******  bayer demosaic  ******/
-	for (y = 1; y < (vh - 1); y++) {
-		for (x = 1; x < (vw - 1); x++) {	/* work out pixel type */
-			if (y & 1)
-				bayer = 0;
-			else
-				bayer = 2;
-			if (!(x & 1))
-				bayer++;
-
-			switch (bayer) {
-			case 0:	/* green. blue lr, red tb */
-				*(output + AD (x, y, vw) + BLUE) = ((int) *(output + AD (x - 1, y, vw) + BLUE) + (int) *(output + AD (x + 1, y, vw) + BLUE)) >> 1;
-				*(output + AD (x, y, vw) + RED) = ((int) *(output + AD (x, y - 1, vw) + RED) + (int) *(output + AD (x, y + 1, vw) + RED)) >> 1;
-				break;
-
-			case 1:	/* blue. green lrtb, red diagonals */
-				*(output + AD (x, y, vw) + GREEN) = ((int) *(output + AD (x - 1, y, vw) + GREEN) + (int) *(output + AD (x + 1, y, vw) + GREEN) + (int) *(output + AD (x, y - 1, vw) + GREEN) + (int) *(output + AD (x, y + 1, vw) + GREEN)) >> 2;
-				*(output + AD (x, y, vw) + RED) = ((int) *(output + AD (x - 1, y - 1, vw) + RED) + (int) *(output + AD (x - 1, y + 1, vw) + RED) + (int) *(output + AD (x + 1, y - 1, vw) + RED) + (int) *(output + AD (x + 1, y + 1, vw) + RED)) >> 2;
-				break;
-
-			case 2:	/* red. green lrtb, blue diagonals */
-				*(output + AD (x, y, vw) + GREEN) = ((int) *(output + AD (x - 1, y, vw) + GREEN) + (int) *(output + AD (x + 1, y, vw) + GREEN) + (int) *(output + AD (x, y - 1, vw) + GREEN) + (int) *(output + AD (x, y + 1, vw) + GREEN)) >> 2;
-				*(output + AD (x, y, vw) + BLUE) = ((int) *(output + AD (x - 1, y - 1, vw) + BLUE) + (int) *(output + AD (x + 1, y - 1, vw) + BLUE) + (int) *(output + AD (x - 1, y + 1, vw) + BLUE) + (int) *(output + AD (x + 1, y + 1, vw) + BLUE)) >> 2;
-				break;
-
-			case 3:	/* green. red lr, blue tb */
-				*(output + AD (x, y, vw) + RED) = ((int) *(output + AD (x - 1, y, vw) + RED) + (int) *(output + AD (x + 1, y, vw) + RED)) >> 1;
-				*(output + AD (x, y, vw) + BLUE) = ((int) *(output + AD (x, y - 1, vw) + BLUE) + (int) *(output + AD (x, y + 1, vw) + BLUE)) >> 1;
-				break;
-			}	/* switch */
-		}		/* for x */
-	}			/* for y  - end demosaic  */
-
-	/* fix top and bottom row, left and right side */
-	i = vw * 3;
-	memcpy (output, (output + i), i);
-	memcpy ((output + (vh * i)), (output + ((vh - 1) * i)), i);
-	for (y = 0; y < vh; y++) {
-		i = y * vw * 3;
-		memcpy ((output + i), (output + i + 3), 3);
-		memcpy ((output + i + (vw * 3)), (output + i + (vw - 1) * 3), 3);
-	}
-
-	/*  process all raw data, then trim to size if necessary */
-	if ((stv680->vwidth == 160) || (stv680->vwidth == 176))  {
-		i = 0;
-		for (y = 0; y < vh; y++) {
-			if (!(y & 1)) {
-				for (x = 0; x < vw; x++) {
-					p = (y * vw + x) * 3;
-					if (!(x & 1)) {
-						*(output + i) = *(output + p);
-						*(output + i + 1) = *(output + p + 1);
-						*(output + i + 2) = *(output + p + 2);
-						i += 3;
-					}
-				}  /* for x */
-			}
-		}  /* for y */
-	}
-	/* reset to proper width */
-	if ((stv680->vwidth == 160)) {
-		vw = 160;
-		vh = 120;
-	}
-	if ((stv680->vwidth == 176)) {
-		vw = 176;
-		vh = 144;
-	}
-
-	/* output is RGB; some programs want BGR  */
-	/* swapRGB_on=0 -> program decides;  swapRGB_on=1, always swap */
-	/* swapRGB_on=-1, never swap */
-	if (((swapRGB == 1) && (swapRGB_on != -1)) || (swapRGB_on == 1)) {
-		for (y = 0; y < vh; y++) {
-			for (x = 0; x < vw; x++) {
-				i = (y * vw + x) * 3;
-				*(temp) = *(output + i);
-				*(output + i) = *(output + i + 2);
-				*(output + i + 2) = *(temp);
-			}
-		}
-	}
-	/* brightness */
-	if (stv680->chgbright == 1) {
-		if (stv680->brightness >= 32767) {
-			p = (stv680->brightness - 32767) / 256;
-			for (x = 0; x < (vw * vh * 3); x++) {
-				if ((*(output + x) + (unsigned char) p) > 255)
-					*(output + x) = 255;
-				else
-					*(output + x) += (unsigned char) p;
-			}	/* for */
-		} else {
-			p = (32767 - stv680->brightness) / 256;
-			for (x = 0; x < (vw * vh * 3); x++) {
-				if ((unsigned char) p > *(output + x))
-					*(output + x) = 0;
-				else
-					*(output + x) -= (unsigned char) p;
-			}	/* for */
-		}		/* else */
-	}
-	/* if */
-	frame->curpix = 0;
-	frame->curlinepix = 0;
-	frame->grabstate = FRAME_DONE;
-	stv680->framecount++;
-	stv680->readcount++;
-	if (stv680->frame[(stv680->curframe + 1) & (STV680_NUMFRAMES - 1)].grabstate == FRAME_READY) {
-		stv680->curframe = (stv680->curframe + 1) & (STV680_NUMFRAMES - 1);
-	}
-
-}				/* bayer_unshuffle */
-
-/*******  end routines from the pencam program  *********/
-
-static int stv680_newframe (struct usb_stv *stv680, int framenr)
-{
-	int errors = 0;
-
-	while (stv680->streaming && (stv680->frame[framenr].grabstate == FRAME_READY || stv680->frame[framenr].grabstate == FRAME_GRABBING)) {
-		if (!stv680->frame[framenr].curpix) {
-			errors++;
-		}
-		wait_event_interruptible (stv680->wq, (stv680->scratch[stv680->scratch_use].state == BUFFER_READY));
-
-		if (stv680->nullpackets > STV680_MAX_NULLPACKETS) {
-			stv680->nullpackets = 0;
-			PDEBUG (2, "STV(i): too many null length packets, restarting capture");
-			stv680_stop_stream (stv680);
-			stv680_start_stream (stv680);
-		} else {
-			if (stv680->scratch[stv680->scratch_use].state != BUFFER_READY) {
-				stv680->frame[framenr].grabstate = FRAME_ERROR;
-				PDEBUG (2, "STV(e): FRAME_ERROR in _newframe");
-				return -EIO;
-			}
-			stv680->scratch[stv680->scratch_use].state = BUFFER_BUSY;
-
-			bayer_unshuffle (stv680, &stv680->scratch[stv680->scratch_use]);
-
-			stv680->scratch[stv680->scratch_use].state = BUFFER_UNUSED;
-			stv680->scratch_use++;
-			if (stv680->scratch_use >= STV680_NUMSCRATCH)
-				stv680->scratch_use = 0;
-			if (errors > STV680_MAX_ERRORS) {
-				errors = 0;
-				PDEBUG (2, "STV(i): too many errors, restarting capture");
-				stv680_stop_stream (stv680);
-				stv680_start_stream (stv680);
-			}
-		}		/* else */
-	}			/* while */
-	return 0;
-}
-
-/*********************************************************************
- * Video4Linux
- *********************************************************************/
-
-static int stv_open(struct file *file)
-{
-	struct video_device *dev = video_devdata(file);
-	struct usb_stv *stv680 = video_get_drvdata(dev);
-	int err = 0;
-
-	/* we are called with the BKL held */
-	lock_kernel();
-	stv680->user = 1;
-	err = stv_init (stv680);	/* main initialization routine for camera */
-
-	if (err >= 0) {
-		stv680->fbuf = rvmalloc (stv680->maxframesize * STV680_NUMFRAMES);
-		if (!stv680->fbuf) {
-			PDEBUG (0, "STV(e): Could not rvmalloc frame bufer");
-			err = -ENOMEM;
-		}
-		file->private_data = dev;
-	}
-	if (err)
-		stv680->user = 0;
-	unlock_kernel();
-
-	return err;
-}
-
-static int stv_close(struct file *file)
-{
-	struct video_device *dev = file->private_data;
-	struct usb_stv *stv680 = video_get_drvdata(dev);
-	int i;
-
-	for (i = 0; i < STV680_NUMFRAMES; i++)
-		stv680->frame[i].grabstate = FRAME_UNUSED;
-	if (stv680->streaming)
-		stv680_stop_stream (stv680);
-
-	if ((i = stv_stop_video (stv680)) < 0)
-		PDEBUG (1, "STV(e): stop_video failed in stv_close");
-
-	rvfree (stv680->fbuf, stv680->maxframesize * STV680_NUMFRAMES);
-	stv680->user = 0;
-
-	if (stv680->removed) {
-		kfree(stv680);
-		stv680 = NULL;
-		PDEBUG (0, "STV(i): device unregistered");
-	}
-	file->private_data = NULL;
-	return 0;
-}
-
-static long stv680_do_ioctl(struct file *file, unsigned int cmd, void *arg)
-{
-	struct video_device *vdev = file->private_data;
-	struct usb_stv *stv680 = video_get_drvdata(vdev);
-
-	if (!stv680->udev)
-		return -EIO;
-
-	switch (cmd) {
-	case VIDIOCGCAP:{
-			struct video_capability *b = arg;
-
-			strcpy (b->name, stv680->camera_name);
-			b->type = VID_TYPE_CAPTURE;
-			b->channels = 1;
-			b->audios = 0;
-			b->maxwidth = stv680->maxwidth;
-			b->maxheight = stv680->maxheight;
-			b->minwidth = stv680->maxwidth / 2;
-			b->minheight = stv680->maxheight / 2;
-			return 0;
-		}
-	case VIDIOCGCHAN:{
-			struct video_channel *v = arg;
-
-			if (v->channel != 0)
-				return -EINVAL;
-			v->flags = 0;
-			v->tuners = 0;
-			v->type = VIDEO_TYPE_CAMERA;
-			strcpy (v->name, "STV Camera");
-			return 0;
-		}
-	case VIDIOCSCHAN:{
-			struct video_channel *v = arg;
-			if (v->channel != 0)
-				return -EINVAL;
-			return 0;
-		}
-	case VIDIOCGPICT:{
-			struct video_picture *p = arg;
-
-			stv680_get_pict (stv680, p);
-			return 0;
-		}
-	case VIDIOCSPICT:{
-			struct video_picture *p = arg;
-
-			if (stv680_set_pict (stv680, p))
-				return -EINVAL;
-			return 0;
-		}
-	case VIDIOCSWIN:{
-			struct video_window *vw = arg;
-
-			if (vw->flags)
-				return -EINVAL;
-			if (vw->clipcount)
-				return -EINVAL;
-			if (vw->width != stv680->vwidth) {
-				if (stv680_set_size (stv680, vw->width, vw->height)) {
-					PDEBUG (2, "STV(e): failed (from user) set size in VIDIOCSWIN");
-					return -EINVAL;
-				}
-			}
-			return 0;
-		}
-	case VIDIOCGWIN:{
-			struct video_window *vw = arg;
-
-			vw->x = 0;	/* FIXME */
-			vw->y = 0;
-			vw->chromakey = 0;
-			vw->flags = 0;
-			vw->clipcount = 0;
-			vw->width = stv680->vwidth;
-			vw->height = stv680->vheight;
-			return 0;
-		}
-	case VIDIOCGMBUF:{
-			struct video_mbuf *vm = arg;
-			int i;
-
-			memset (vm, 0, sizeof (*vm));
-			vm->size = STV680_NUMFRAMES * stv680->maxframesize;
-			vm->frames = STV680_NUMFRAMES;
-			for (i = 0; i < STV680_NUMFRAMES; i++)
-				vm->offsets[i] = stv680->maxframesize * i;
-			return 0;
-		}
-	case VIDIOCMCAPTURE:{
-			struct video_mmap *vm = arg;
-
-			if (vm->format != STV_VIDEO_PALETTE) {
-				PDEBUG (2, "STV(i): VIDIOCMCAPTURE vm.format (%i) != VIDEO_PALETTE (%i)",
-					vm->format, STV_VIDEO_PALETTE);
-				if ((vm->format == 3) && (swapRGB_on == 0))  {
-					PDEBUG (2, "STV(i): VIDIOCMCAPTURE swapRGB is (auto) ON");
-					/* this may fix those apps (e.g., xawtv) that want BGR */
-					swapRGB = 1;
-				}
-				return -EINVAL;
-			}
-			if (vm->frame >= STV680_NUMFRAMES) {
-				PDEBUG (2, "STV(e): VIDIOCMCAPTURE vm.frame > NUMFRAMES");
-				return -EINVAL;
-			}
-			if ((stv680->frame[vm->frame].grabstate == FRAME_ERROR)
-			    || (stv680->frame[vm->frame].grabstate == FRAME_GRABBING)) {
-				PDEBUG (2, "STV(e): VIDIOCMCAPTURE grabstate (%i) error",
-					stv680->frame[vm->frame].grabstate);
-				return -EBUSY;
-			}
-			/* Is this according to the v4l spec??? */
-			if (stv680->vwidth != vm->width) {
-				if (stv680_set_size (stv680, vm->width, vm->height)) {
-					PDEBUG (2, "STV(e): VIDIOCMCAPTURE set_size failed");
-					return -EINVAL;
-				}
-			}
-			stv680->frame[vm->frame].grabstate = FRAME_READY;
-
-			if (!stv680->streaming)
-				stv680_start_stream (stv680);
-
-			return 0;
-		}
-	case VIDIOCSYNC:{
-			int *frame = arg;
-			int ret = 0;
-
-			if (*frame < 0 || *frame >= STV680_NUMFRAMES) {
-				PDEBUG (2, "STV(e): Bad frame # in VIDIOCSYNC");
-				return -EINVAL;
-			}
-			ret = stv680_newframe (stv680, *frame);
-			stv680->frame[*frame].grabstate = FRAME_UNUSED;
-			return ret;
-		}
-	case VIDIOCGFBUF:{
-			struct video_buffer *vb = arg;
-
-			memset (vb, 0, sizeof (*vb));
-			return 0;
-		}
-	case VIDIOCKEY:
-		return 0;
-	case VIDIOCCAPTURE:
-		{
-			PDEBUG (2, "STV(e): VIDIOCCAPTURE failed");
-			return -EINVAL;
-		}
-	case VIDIOCSFBUF:
-	case VIDIOCGTUNER:
-	case VIDIOCSTUNER:
-	case VIDIOCGFREQ:
-	case VIDIOCSFREQ:
-	case VIDIOCGAUDIO:
-	case VIDIOCSAUDIO:
-		return -EINVAL;
-	default:
-		return -ENOIOCTLCMD;
-	}			/* end switch */
-
-	return 0;
-}
-
-static long stv680_ioctl(struct file *file,
-			unsigned int cmd, unsigned long arg)
-{
-	return video_usercopy(file, cmd, arg, stv680_do_ioctl);
-}
-
-static int stv680_mmap (struct file *file, struct vm_area_struct *vma)
-{
-	struct video_device *dev = file->private_data;
-	struct usb_stv *stv680 = video_get_drvdata(dev);
-	unsigned long start = vma->vm_start;
-	unsigned long size  = vma->vm_end-vma->vm_start;
-	unsigned long page, pos;
-
-	mutex_lock(&stv680->lock);
-
-	if (stv680->udev == NULL) {
-		mutex_unlock(&stv680->lock);
-		return -EIO;
-	}
-	if (size > (((STV680_NUMFRAMES * stv680->maxframesize) + PAGE_SIZE - 1)
-		    & ~(PAGE_SIZE - 1))) {
-		mutex_unlock(&stv680->lock);
-		return -EINVAL;
-	}
-	pos = (unsigned long) stv680->fbuf;
-	while (size > 0) {
-		page = vmalloc_to_pfn((void *)pos);
-		if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
-			mutex_unlock(&stv680->lock);
-			return -EAGAIN;
-		}
-		start += PAGE_SIZE;
-		pos += PAGE_SIZE;
-		if (size > PAGE_SIZE)
-			size -= PAGE_SIZE;
-		else
-			size = 0;
-	}
-	mutex_unlock(&stv680->lock);
-
-	return 0;
-}
-
-static ssize_t stv680_read (struct file *file, char __user *buf,
-			size_t count, loff_t *ppos)
-{
-	struct video_device *dev = file->private_data;
-	unsigned long int realcount = count;
-	int ret = 0;
-	struct usb_stv *stv680 = video_get_drvdata(dev);
-	unsigned long int i;
-
-	if (STV680_NUMFRAMES != 2) {
-		PDEBUG (0, "STV(e): STV680_NUMFRAMES needs to be 2!");
-		return -1;
-	}
-	if (stv680->udev == NULL)
-		return -EIO;
-	if (realcount > (stv680->vwidth * stv680->vheight * 3))
-		realcount = stv680->vwidth * stv680->vheight * 3;
-
-	/* Shouldn't happen: */
-	if (stv680->frame[0].grabstate == FRAME_GRABBING) {
-		PDEBUG (2, "STV(e): FRAME_GRABBING in stv680_read");
-		return -EBUSY;
-	}
-	stv680->frame[0].grabstate = FRAME_READY;
-	stv680->frame[1].grabstate = FRAME_UNUSED;
-	stv680->curframe = 0;
-
-	if (!stv680->streaming)
-		stv680_start_stream (stv680);
-
-	if (!stv680->streaming) {
-		ret = stv680_newframe (stv680, 0);	/* ret should = 0 */
-	}
-
-	ret = stv680_newframe (stv680, 0);
-
-	if (!ret) {
-		if ((i = copy_to_user (buf, stv680->frame[0].data, realcount)) != 0) {
-			PDEBUG (2, "STV(e): copy_to_user frame 0 failed, ret count = %li", i);
-			return -EFAULT;
-		}
-	} else {
-		realcount = ret;
-	}
-	stv680->frame[0].grabstate = FRAME_UNUSED;
-	return realcount;
-}				/* stv680_read */
-
-static const struct v4l2_file_operations stv680_fops = {
-	.owner =	THIS_MODULE,
-	.open =		stv_open,
-	.release =     	stv_close,
-	.read =		stv680_read,
-	.mmap =		stv680_mmap,
-	.ioctl =        stv680_ioctl,
-};
-static struct video_device stv680_template = {
-	.name =		"STV0680 USB camera",
-	.fops =         &stv680_fops,
-	.release =	video_device_release,
-};
-
-static int stv680_probe (struct usb_interface *intf, const struct usb_device_id *id)
-{
-	struct usb_device *dev = interface_to_usbdev(intf);
-	struct usb_host_interface *interface;
-	struct usb_stv *stv680 = NULL;
-	char *camera_name = NULL;
-	int retval = 0;
-
-	/* We don't handle multi-config cameras */
-	if (dev->descriptor.bNumConfigurations != 1) {
-		PDEBUG (0, "STV(e): Number of Configurations != 1");
-		return -ENODEV;
-	}
-
-	interface = &intf->altsetting[0];
-	/* Is it a STV680? */
-	if ((le16_to_cpu(dev->descriptor.idVendor) == USB_PENCAM_VENDOR_ID) &&
-	    (le16_to_cpu(dev->descriptor.idProduct) == USB_PENCAM_PRODUCT_ID)) {
-		camera_name = "STV0680";
-		PDEBUG (0, "STV(i): STV0680 camera found.");
-	} else if ((le16_to_cpu(dev->descriptor.idVendor) == USB_CREATIVEGOMINI_VENDOR_ID) &&
-		   (le16_to_cpu(dev->descriptor.idProduct) == USB_CREATIVEGOMINI_PRODUCT_ID)) {
-		camera_name = "Creative WebCam Go Mini";
-		PDEBUG (0, "STV(i): Creative WebCam Go Mini found.");
-	} else {
-		PDEBUG (0, "STV(e): Vendor/Product ID do not match STV0680 or Creative WebCam Go Mini values.");
-		PDEBUG (0, "STV(e): Check that the STV0680 or Creative WebCam Go Mini camera is connected to the computer.");
-		retval = -ENODEV;
-		goto error;
-	}
-	/* We found one */
-	if ((stv680 = kzalloc (sizeof (*stv680), GFP_KERNEL)) == NULL) {
-		PDEBUG (0, "STV(e): couldn't kmalloc stv680 struct.");
-		retval = -ENOMEM;
-		goto error;
-	}
-
-	stv680->udev = dev;
-	stv680->camera_name = camera_name;
-
-	stv680->vdev = video_device_alloc();
-	if (!stv680->vdev) {
-		retval = -ENOMEM;
-		goto error;
-	}
-	memcpy(stv680->vdev, &stv680_template, sizeof(stv680_template));
-	stv680->vdev->parent = &intf->dev;
-	video_set_drvdata(stv680->vdev, stv680);
-
-	memcpy (stv680->vdev->name, stv680->camera_name, strlen (stv680->camera_name));
-	init_waitqueue_head (&stv680->wq);
-	mutex_init (&stv680->lock);
-	wmb ();
-
-	if (video_register_device(stv680->vdev, VFL_TYPE_GRABBER, video_nr) < 0) {
-		PDEBUG (0, "STV(e): video_register_device failed");
-		retval = -EIO;
-		goto error_vdev;
-	}
-	PDEBUG(0, "STV(i): registered new video device: %s",
-		video_device_node_name(stv680->vdev));
-
-	usb_set_intfdata (intf, stv680);
-	retval = stv680_create_sysfs_files(stv680->vdev);
-	if (retval)
-		goto error_unreg;
-	return 0;
-
-error_unreg:
-	video_unregister_device(stv680->vdev);
-error_vdev:
-	video_device_release(stv680->vdev);
-error:
-	kfree(stv680);
-	return retval;
-}
-
-static inline void usb_stv680_remove_disconnected (struct usb_stv *stv680)
-{
-	int i;
-
-	stv680->udev = NULL;
-	stv680->frame[0].grabstate = FRAME_ERROR;
-	stv680->frame[1].grabstate = FRAME_ERROR;
-	stv680->streaming = 0;
-
-	wake_up_interruptible (&stv680->wq);
-
-	for (i = 0; i < STV680_NUMSBUF; i++)
-		if (stv680->urb[i]) {
-			usb_kill_urb (stv680->urb[i]);
-			usb_free_urb (stv680->urb[i]);
-			stv680->urb[i] = NULL;
-			kfree(stv680->sbuf[i].data);
-		}
-	for (i = 0; i < STV680_NUMSCRATCH; i++)
-		kfree(stv680->scratch[i].data);
-	PDEBUG (0, "STV(i): %s disconnected", stv680->camera_name);
-
-	/* Free the memory */
-	kfree(stv680);
-}
-
-static void stv680_disconnect (struct usb_interface *intf)
-{
-	struct usb_stv *stv680 = usb_get_intfdata (intf);
-
-	usb_set_intfdata (intf, NULL);
-
-	if (stv680) {
-		/* We don't want people trying to open up the device */
-		if (stv680->vdev) {
-			stv680_remove_sysfs_files(stv680->vdev);
-			video_unregister_device(stv680->vdev);
-			stv680->vdev = NULL;
-		}
-		if (!stv680->user) {
-			usb_stv680_remove_disconnected (stv680);
-		} else {
-			stv680->removed = 1;
-		}
-	}
-}
-
-static struct usb_driver stv680_driver = {
-	.name =		"stv680",
-	.probe =	stv680_probe,
-	.disconnect =	stv680_disconnect,
-	.id_table =	device_table
-};
-
-/********************************************************************
- *  Module routines
- ********************************************************************/
-
-static int __init usb_stv680_init (void)
-{
-	if (usb_register (&stv680_driver) < 0) {
-		PDEBUG (0, "STV(e): Could not setup STV0680 driver");
-		return -1;
-	}
-	PDEBUG (0, "STV(i): usb camera driver version %s registering", DRIVER_VERSION);
-
-	printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
-	       DRIVER_DESC "\n");
-	return 0;
-}
-
-static void __exit usb_stv680_exit (void)
-{
-	usb_deregister (&stv680_driver);
-	PDEBUG (0, "STV(i): driver deregistered");
-}
-
-module_init (usb_stv680_init);
-module_exit (usb_stv680_exit);