Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git

Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 1411 insertions, 0 deletions

diff --git a/drivers/media/video/usbvideo/vicam.c b/drivers/media/video/usbvideo/vicam.c
new file mode 100644
index 00000000000..90d48e8510b
--- /dev/null
+++ b/drivers/media/video/usbvideo/vicam.c
@@ -0,0 +1,1411 @@
+/*
+ * USB ViCam WebCam driver
+ * Copyright (c) 2002 Joe Burks (jburks@wavicle.org),
+ *                    Christopher L Cheney (ccheney@cheney.cx),
+ *                    Pavel Machek (pavel@suse.cz),
+ *                    John Tyner (jtyner@cs.ucr.edu),
+ *                    Monroe Williams (monroe@pobox.com)
+ *
+ * Supports 3COM HomeConnect PC Digital WebCam
+ *
+ * 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.
+ *
+ * This source code is based heavily on the CPiA webcam driver which was
+ * written by Peter Pregler, Scott J. Bertin and Johannes Erdfelt
+ *
+ * Portions of this code were also copied from usbvideo.c
+ *
+ * Special thanks to the the whole team at Sourceforge for help making
+ * this driver become a reality.  Notably:
+ * Andy Armstrong who reverse engineered the color encoding and
+ * Pavel Machek and Chris Cheney who worked on reverse engineering the
+ *    camera controls and wrote the first generation driver.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/videodev.h>
+#include <linux/usb.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/proc_fs.h>
+#include <linux/mutex.h>
+#include "usbvideo.h"
+
+// #define VICAM_DEBUG
+
+#ifdef VICAM_DEBUG
+#define ADBG(lineno,fmt,args...) printk(fmt, jiffies, __FUNCTION__, lineno, ##args)
+#define DBG(fmt,args...) ADBG((__LINE__),KERN_DEBUG __FILE__"(%ld):%s (%d):"fmt,##args)
+#else
+#define DBG(fmn,args...) do {} while(0)
+#endif
+
+#define DRIVER_AUTHOR           "Joe Burks, jburks@wavicle.org"
+#define DRIVER_DESC             "ViCam WebCam Driver"
+
+/* Define these values to match your device */
+#define USB_VICAM_VENDOR_ID	0x04c1
+#define USB_VICAM_PRODUCT_ID	0x009d
+
+#define VICAM_BYTES_PER_PIXEL   3
+#define VICAM_MAX_READ_SIZE     (512*242+128)
+#define VICAM_MAX_FRAME_SIZE    (VICAM_BYTES_PER_PIXEL*320*240)
+#define VICAM_FRAMES            2
+
+#define VICAM_HEADER_SIZE       64
+
+#define clamp( x, l, h )        max_t( __typeof__( x ),         \
+				       ( l ),                   \
+				       min_t( __typeof__( x ),  \
+					      ( h ),            \
+					      ( x ) ) )
+
+/* Not sure what all the bytes in these char
+ * arrays do, but they're necessary to make
+ * the camera work.
+ */
+
+static unsigned char setup1[] = {
+	0xB6, 0xC3, 0x1F, 0x00, 0x02, 0x64, 0xE7, 0x67,
+	0xFD, 0xFF, 0x0E, 0xC0, 0xE7, 0x09, 0xDE, 0x00,
+	0x8E, 0x00, 0xC0, 0x09, 0x40, 0x03, 0xC0, 0x17,
+	0x44, 0x03, 0x4B, 0xAF, 0xC0, 0x07, 0x00, 0x00,
+	0x4B, 0xAF, 0x97, 0xCF, 0x00, 0x00
+};
+
+static unsigned char setup2[] = {
+	0xB6, 0xC3, 0x03, 0x00, 0x03, 0x64, 0x18, 0x00,
+	0x00, 0x00
+};
+
+static unsigned char setup3[] = {
+	0xB6, 0xC3, 0x01, 0x00, 0x06, 0x64, 0x00, 0x00
+};
+
+static unsigned char setup4[] = {
+	0xB6, 0xC3, 0x8F, 0x06, 0x02, 0x64, 0xE7, 0x07,
+	0x00, 0x00, 0x08, 0xC0, 0xE7, 0x07, 0x00, 0x00,
+	0x3E, 0xC0, 0xE7, 0x07, 0x54, 0x01, 0xAA, 0x00,
+	0xE7, 0x07, 0xC8, 0x05, 0xB6, 0x00, 0xE7, 0x07,
+	0x42, 0x01, 0xD2, 0x00, 0xE7, 0x07, 0x7C, 0x00,
+	0x16, 0x00, 0xE7, 0x07, 0x56, 0x00, 0x18, 0x00,
+	0xE7, 0x07, 0x06, 0x00, 0x92, 0xC0, 0xE7, 0x07,
+	0x00, 0x00, 0x1E, 0xC0, 0xE7, 0x07, 0xFF, 0xFF,
+	0x22, 0xC0, 0xE7, 0x07, 0x04, 0x00, 0x24, 0xC0,
+	0xE7, 0x07, 0xEC, 0x27, 0x28, 0xC0, 0xE7, 0x07,
+	0x16, 0x01, 0x8E, 0x00, 0xE7, 0x87, 0x01, 0x00,
+	0x0E, 0xC0, 0x97, 0xCF, 0xD7, 0x09, 0x00, 0xC0,
+	0xE7, 0x77, 0x01, 0x00, 0x92, 0xC0, 0x09, 0xC1,
+	0xE7, 0x09, 0xFE, 0x05, 0x24, 0x01, 0xE7, 0x09,
+	0x04, 0x06, 0x26, 0x01, 0xE7, 0x07, 0x07, 0x00,
+	0x92, 0xC0, 0xE7, 0x05, 0x00, 0xC0, 0xC0, 0xDF,
+	0x97, 0xCF, 0x17, 0x00, 0x57, 0x00, 0x17, 0x02,
+	0xD7, 0x09, 0x00, 0xC0, 0xE7, 0x77, 0x01, 0x00,
+	0x92, 0xC0, 0x0A, 0xC1, 0xE7, 0x57, 0xFF, 0xFF,
+	0xFA, 0x05, 0x0D, 0xC0, 0xE7, 0x57, 0x00, 0x00,
+	0xFA, 0x05, 0x0F, 0xC0, 0x9F, 0xAF, 0xC6, 0x00,
+	0xE7, 0x05, 0x00, 0xC0, 0xC8, 0x05, 0xC1, 0x05,
+	0xC0, 0x05, 0xC0, 0xDF, 0x97, 0xCF, 0x27, 0xDA,
+	0xFA, 0x05, 0xEF, 0x07, 0x01, 0x00, 0x0B, 0x06,
+	0x73, 0xCF, 0x9F, 0xAF, 0x78, 0x01, 0x9F, 0xAF,
+	0x1A, 0x03, 0x6E, 0xCF, 0xE7, 0x09, 0xFC, 0x05,
+	0x24, 0x01, 0xE7, 0x09, 0x02, 0x06, 0x26, 0x01,
+	0xE7, 0x07, 0x07, 0x00, 0x92, 0xC0, 0xE7, 0x09,
+	0xFC, 0x05, 0xFE, 0x05, 0xE7, 0x09, 0x02, 0x06,
+	0x04, 0x06, 0xE7, 0x09, 0x00, 0x06, 0xFC, 0x05,
+	0xE7, 0x09, 0xFE, 0x05, 0x00, 0x06, 0x27, 0xDA,
+	0xFA, 0x05, 0xE7, 0x57, 0x01, 0x00, 0xFA, 0x05,
+	0x02, 0xCA, 0x04, 0xC0, 0x97, 0xCF, 0x9F, 0xAF,
+	0x66, 0x05, 0x97, 0xCF, 0xE7, 0x07, 0x40, 0x00,
+	0x02, 0x06, 0xC8, 0x09, 0xFC, 0x05, 0x9F, 0xAF,
+	0xDA, 0x02, 0x97, 0xCF, 0xCF, 0x17, 0x02, 0x00,
+	0xEF, 0x57, 0x81, 0x00, 0x09, 0x06, 0x9F, 0xA0,
+	0xB6, 0x01, 0xEF, 0x57, 0x80, 0x00, 0x09, 0x06,
+	0x9F, 0xA0, 0x40, 0x02, 0xEF, 0x57, 0x01, 0x00,
+	0x0B, 0x06, 0x9F, 0xA0, 0x46, 0x03, 0xE7, 0x07,
+	0x01, 0x00, 0x0A, 0xC0, 0x46, 0xAF, 0x47, 0xAF,
+	0x9F, 0xAF, 0x40, 0x02, 0xE7, 0x07, 0x2E, 0x00,
+	0x0A, 0xC0, 0xEF, 0x87, 0x80, 0x00, 0x09, 0x06,
+	0x97, 0xCF, 0x00, 0x0E, 0x01, 0x00, 0xC0, 0x57,
+	0x51, 0x00, 0x9F, 0xC0, 0x9E, 0x02, 0xC0, 0x57,
+	0x50, 0x00, 0x20, 0xC0, 0xC0, 0x57, 0x55, 0x00,
+	0x12, 0xC0, 0xC0, 0x57, 0x56, 0x00, 0x9F, 0xC0,
+	0x72, 0x02, 0x9F, 0xCF, 0xD6, 0x02, 0xC1, 0x0B,
+	0x08, 0x06, 0x01, 0xD0, 0x6F, 0x90, 0x08, 0x06,
+	0xC0, 0x07, 0x08, 0x00, 0xC1, 0x0B, 0x08, 0x06,
+	0x9F, 0xAF, 0x28, 0x05, 0x97, 0xCF, 0x2F, 0x0E,
+	0x02, 0x00, 0x08, 0x06, 0xC0, 0x07, 0x08, 0x00,
+	0xC1, 0x0B, 0x08, 0x06, 0x9F, 0xAF, 0x28, 0x05,
+	0x9F, 0xCF, 0xD6, 0x02, 0x2F, 0x0E, 0x02, 0x00,
+	0x09, 0x06, 0xEF, 0x87, 0x80, 0x00, 0x09, 0x06,
+	0x9F, 0xCF, 0xD6, 0x02, 0xEF, 0x67, 0x7F, 0xFF,
+	0x09, 0x06, 0xE7, 0x67, 0xFF, 0xFD, 0x22, 0xC0,
+	0xE7, 0x67, 0xEF, 0xFF, 0x24, 0xC0, 0xE7, 0x87,
+	0x10, 0x00, 0x28, 0xC0, 0x9F, 0xAF, 0xB8, 0x05,
+	0xE7, 0x87, 0xE0, 0x21, 0x24, 0xC0, 0x9F, 0xAF,
+	0xA8, 0x05, 0xE7, 0x87, 0x08, 0x00, 0x24, 0xC0,
+	0xE7, 0x67, 0xDF, 0xFF, 0x24, 0xC0, 0xC8, 0x07,
+	0x0A, 0x00, 0xC0, 0x07, 0x00, 0x00, 0xC1, 0x07,
+	0x01, 0x00, 0x9F, 0xAF, 0x28, 0x05, 0x9F, 0xAF,
+	0xB8, 0x05, 0xC0, 0x07, 0x9E, 0x00, 0x9F, 0xAF,
+	0x44, 0x05, 0xE7, 0x67, 0xFF, 0xFE, 0x24, 0xC0,
+	0xC0, 0x09, 0x20, 0xC0, 0xE7, 0x87, 0x00, 0x01,
+	0x24, 0xC0, 0xC0, 0x77, 0x00, 0x02, 0x0F, 0xC1,
+	0xE7, 0x67, 0xF7, 0xFF, 0x24, 0xC0, 0xE7, 0x67,
+	0xF7, 0xFF, 0x24, 0xC0, 0xE7, 0x87, 0x08, 0x00,
+	0x24, 0xC0, 0x08, 0xDA, 0x5E, 0xC1, 0xEF, 0x07,
+	0x80, 0x00, 0x09, 0x06, 0x97, 0xCF, 0xEF, 0x07,
+	0x01, 0x00, 0x0A, 0x06, 0x97, 0xCF, 0xEF, 0x07,
+	0x00, 0x00, 0x0B, 0x06, 0xEF, 0x07, 0x00, 0x00,
+	0x0A, 0x06, 0xEF, 0x67, 0x7F, 0xFF, 0x09, 0x06,
+	0xEF, 0x07, 0x00, 0x00, 0x0D, 0x06, 0xE7, 0x67,
+	0xEF, 0xFF, 0x28, 0xC0, 0xE7, 0x67, 0x17, 0xD8,
+	0x24, 0xC0, 0xE7, 0x07, 0x00, 0x00, 0x1E, 0xC0,
+	0xE7, 0x07, 0xFF, 0xFF, 0x22, 0xC0, 0x97, 0xCF,
+	0xC8, 0x07, 0x0E, 0x06, 0x9F, 0xAF, 0xDA, 0x02,
+	0xE7, 0x07, 0x00, 0x00, 0xF2, 0x05, 0xE7, 0x07,
+	0x10, 0x00, 0xF6, 0x05, 0xE7, 0x07, 0x0E, 0x06,
+	0xF4, 0x05, 0xE7, 0x07, 0xD6, 0x02, 0xF8, 0x05,
+	0xC8, 0x07, 0xF2, 0x05, 0xC1, 0x07, 0x00, 0x80,
+	0x50, 0xAF, 0x97, 0xCF, 0x2F, 0x0C, 0x02, 0x00,
+	0x07, 0x06, 0x2F, 0x0C, 0x04, 0x00, 0x06, 0x06,
+	0xE7, 0x07, 0x00, 0x00, 0xF2, 0x05, 0xE7, 0x07,
+	0x10, 0x00, 0xF6, 0x05, 0xE7, 0x07, 0xE2, 0x05,
+	0xF4, 0x05, 0xE7, 0x07, 0xCE, 0x02, 0xF8, 0x05,
+	0xC8, 0x07, 0xF2, 0x05, 0xC1, 0x07, 0x00, 0x80,
+	0x51, 0xAF, 0x97, 0xCF, 0x9F, 0xAF, 0x66, 0x04,
+	0x9F, 0xAF, 0x1A, 0x03, 0x59, 0xAF, 0x97, 0xCF,
+	0xC0, 0x07, 0x0E, 0x00, 0xC1, 0x0B, 0x0C, 0x06,
+	0x41, 0xD1, 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07,
+	0x3C, 0x00, 0x9F, 0xAF, 0x44, 0x05, 0x68, 0x00,
+	0xC0, 0x07, 0x3B, 0x00, 0x9F, 0xAF, 0x44, 0x05,
+	0x6F, 0x00, 0x0C, 0x06, 0x68, 0x00, 0xE0, 0x07,
+	0x04, 0x01, 0xE8, 0x0B, 0x0A, 0x06, 0xE8, 0x07,
+	0x00, 0x00, 0xE0, 0x07, 0x00, 0x02, 0xE0, 0x07,
+	0xEC, 0x01, 0xE0, 0x07, 0xFC, 0xFF, 0x97, 0xCF,
+	0xE7, 0x07, 0xFF, 0xFF, 0xFA, 0x05, 0xEF, 0x07,
+	0x00, 0x00, 0x0B, 0x06, 0xE7, 0x07, 0x0E, 0x06,
+	0x24, 0x01, 0xE7, 0x07, 0x0E, 0x06, 0xFE, 0x05,
+	0xE7, 0x07, 0x40, 0x00, 0x26, 0x01, 0xE7, 0x07,
+	0x40, 0x00, 0x04, 0x06, 0xE7, 0x07, 0x07, 0x00,
+	0x92, 0xC0, 0x97, 0xCF, 0xEF, 0x07, 0x02, 0x00,
+	0x0B, 0x06, 0x9F, 0xAF, 0x78, 0x01, 0xEF, 0x77,
+	0x80, 0x00, 0x07, 0x06, 0x9F, 0xC0, 0x14, 0x04,
+	0xEF, 0x77, 0x01, 0x00, 0x07, 0x06, 0x37, 0xC0,
+	0xEF, 0x77, 0x01, 0x00, 0x0D, 0x06, 0x0F, 0xC1,
+	0xEF, 0x07, 0x01, 0x00, 0x0D, 0x06, 0xC0, 0x07,
+	0x02, 0x00, 0xC1, 0x07, 0x30, 0x00, 0x9F, 0xAF,
+	0x28, 0x05, 0xC0, 0x07, 0x01, 0x00, 0xC1, 0x07,
+	0x02, 0x00, 0x9F, 0xAF, 0x28, 0x05, 0xC8, 0x07,
+	0xFF, 0x4F, 0x9F, 0xAF, 0xA8, 0x05, 0xC0, 0x07,
+	0x38, 0x00, 0x9F, 0xAF, 0x44, 0x05, 0xC1, 0x77,
+	0x03, 0x00, 0x02, 0xC1, 0x08, 0xDA, 0x75, 0xC1,
+	0xC1, 0x77, 0x01, 0x00, 0x0A, 0xC1, 0xC0, 0x07,
+	0x01, 0x00, 0xC1, 0x07, 0x02, 0x00, 0x9F, 0xAF,
+	0x28, 0x05, 0xEF, 0x07, 0x01, 0x00, 0x06, 0x06,
+	0x2C, 0xCF, 0xC0, 0x07, 0x01, 0x00, 0xC1, 0x07,
+	0x04, 0x00, 0x9F, 0xAF, 0x28, 0x05, 0xEF, 0x07,
+	0x00, 0x00, 0x06, 0x06, 0x22, 0xCF, 0xEF, 0x07,
+	0x00, 0x00, 0x0D, 0x06, 0xEF, 0x57, 0x01, 0x00,
+	0x06, 0x06, 0x1B, 0xC0, 0xC0, 0x07, 0x01, 0x00,
+	0xC1, 0x07, 0x01, 0x00, 0x9F, 0xAF, 0x28, 0x05,
+	0xC0, 0x07, 0x02, 0x00, 0xC1, 0x07, 0x30, 0x00,
+	0x9F, 0xAF, 0x28, 0x05, 0xC8, 0x07, 0xFF, 0x4F,
+	0x9F, 0xAF, 0xA8, 0x05, 0xC0, 0x07, 0x38, 0x00,
+	0x9F, 0xAF, 0x44, 0x05, 0xC1, 0x67, 0x03, 0x00,
+	0xC1, 0x57, 0x03, 0x00, 0x02, 0xC0, 0x08, 0xDA,
+	0x73, 0xC1, 0xC0, 0x07, 0x02, 0x00, 0xC1, 0x07,
+	0x12, 0x00, 0xEF, 0x57, 0x00, 0x00, 0x06, 0x06,
+	0x02, 0xC0, 0xC1, 0x07, 0x23, 0x00, 0x9F, 0xAF,
+	0x28, 0x05, 0xC0, 0x07, 0x14, 0x00, 0xC1, 0x0B,
+	0xEA, 0x05, 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07,
+	0x3E, 0x00, 0x9F, 0xAF, 0x0A, 0x05, 0xE7, 0x09,
+	0xE4, 0x05, 0xFA, 0x05, 0x27, 0xD8, 0xFA, 0x05,
+	0xE7, 0x07, 0x0E, 0x06, 0xFC, 0x05, 0xE7, 0x07,
+	0x4E, 0x06, 0x00, 0x06, 0xE7, 0x07, 0x40, 0x00,
+	0x02, 0x06, 0x9F, 0xAF, 0x66, 0x05, 0x9F, 0xAF,
+	0xC6, 0x00, 0x97, 0xCF, 0xC1, 0x0B, 0xE2, 0x05,
+	0x41, 0xD0, 0x01, 0xD2, 0xC1, 0x17, 0x23, 0x00,
+	0x9F, 0xAF, 0xDC, 0x04, 0xC0, 0x07, 0x04, 0x00,
+	0xC1, 0x0B, 0xE3, 0x05, 0x9F, 0xAF, 0x28, 0x05,
+	0xC0, 0x07, 0x06, 0x00, 0xC1, 0x09, 0xE6, 0x05,
+	0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, 0x07, 0x00,
+	0xC1, 0x09, 0xE6, 0x05, 0xC1, 0xD1, 0x9F, 0xAF,
+	0x28, 0x05, 0xC0, 0x07, 0x0B, 0x00, 0xC1, 0x09,
+	0xE8, 0x05, 0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07,
+	0x0C, 0x00, 0xC1, 0x09, 0xE8, 0x05, 0xC1, 0xD1,
+	0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, 0x0D, 0x00,
+	0xC1, 0x07, 0x09, 0x00, 0x9F, 0xAF, 0x28, 0x05,
+	0xC0, 0x07, 0x03, 0x00, 0xC1, 0x07, 0x32, 0x00,
+	0x9F, 0xAF, 0x28, 0x05, 0xC0, 0x07, 0x0F, 0x00,
+	0xC1, 0x07, 0x00, 0x00, 0x9F, 0xAF, 0x28, 0x05,
+	0x97, 0xCF, 0xE7, 0x67, 0xFF, 0xD9, 0x24, 0xC0,
+	0xC8, 0x07, 0x0A, 0x00, 0x40, 0x00, 0xC0, 0x67,
+	0x00, 0x02, 0x27, 0x80, 0x24, 0xC0, 0xE7, 0x87,
+	0x00, 0x04, 0x24, 0xC0, 0xE7, 0x67, 0xFF, 0xF9,
+	0x24, 0xC0, 0x01, 0xD2, 0x08, 0xDA, 0x72, 0xC1,
+	0xE7, 0x87, 0x00, 0x20, 0x24, 0xC0, 0x97, 0xCF,
+	0x27, 0x00, 0x1E, 0xC0, 0xE7, 0x87, 0xFF, 0x00,
+	0x22, 0xC0, 0xE7, 0x67, 0x7F, 0xFF, 0x24, 0xC0,
+	0xE7, 0x87, 0x80, 0x00, 0x24, 0xC0, 0xE7, 0x87,
+	0x80, 0x00, 0x24, 0xC0, 0x97, 0xCF, 0x9F, 0xAF,
+	0x0A, 0x05, 0x67, 0x00, 0x1E, 0xC0, 0xE7, 0x67,
+	0xBF, 0xFF, 0x24, 0xC0, 0xE7, 0x87, 0x40, 0x00,
+	0x24, 0xC0, 0xE7, 0x87, 0x40, 0x00, 0x24, 0xC0,
+	0x97, 0xCF, 0x9F, 0xAF, 0x0A, 0x05, 0xE7, 0x67,
+	0x00, 0xFF, 0x22, 0xC0, 0xE7, 0x67, 0xFF, 0xFE,
+	0x24, 0xC0, 0xE7, 0x67, 0xFF, 0xFE, 0x24, 0xC0,
+	0xC1, 0x09, 0x20, 0xC0, 0xE7, 0x87, 0x00, 0x01,
+	0x24, 0xC0, 0x97, 0xCF, 0xC0, 0x07, 0x40, 0x00,
+	0xC8, 0x09, 0xFC, 0x05, 0xE7, 0x67, 0x00, 0xFF,
+	0x22, 0xC0, 0xE7, 0x67, 0xFF, 0xFE, 0x24, 0xC0,
+	0xE7, 0x67, 0xBF, 0xFF, 0x24, 0xC0, 0xE7, 0x67,
+	0xBF, 0xFF, 0x24, 0xC0, 0x00, 0xDA, 0xE8, 0x09,
+	0x20, 0xC0, 0xE7, 0x87, 0x40, 0x00, 0x24, 0xC0,
+	0xE7, 0x87, 0x40, 0x00, 0x24, 0xC0, 0x00, 0xDA,
+	0xE8, 0x09, 0x20, 0xC0, 0x6D, 0xC1, 0xE7, 0x87,
+	0x00, 0x01, 0x24, 0xC0, 0x97, 0xCF, 0xE7, 0x07,
+	0x32, 0x00, 0x12, 0xC0, 0xE7, 0x77, 0x00, 0x80,
+	0x12, 0xC0, 0x7C, 0xC0, 0x97, 0xCF, 0xE7, 0x07,
+	0x20, 0x4E, 0x12, 0xC0, 0xE7, 0x77, 0x00, 0x80,
+	0x12, 0xC0, 0x7C, 0xC0, 0x97, 0xCF, 0x09, 0x02,
+	0x19, 0x00, 0x01, 0x01, 0x00, 0x80, 0x96, 0x09,
+	0x04, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
+	0x07, 0x05, 0x81, 0x02, 0x40, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+
+static unsigned char setup5[] = {
+	0xB6, 0xC3, 0x2F, 0x01, 0x03, 0x64, 0x0E, 0x00,
+	0x14, 0x00, 0x1A, 0x00, 0x20, 0x00, 0x26, 0x00,
+	0x4A, 0x00, 0x64, 0x00, 0x6A, 0x00, 0x92, 0x00,
+	0x9A, 0x00, 0xA0, 0x00, 0xB2, 0x00, 0xB8, 0x00,
+	0xBE, 0x00, 0xC2, 0x00, 0xC8, 0x00, 0xCE, 0x00,
+	0xDC, 0x00, 0xDA, 0x00, 0xE2, 0x00, 0xE0, 0x00,
+	0xE8, 0x00, 0xE6, 0x00, 0xEE, 0x00, 0xEC, 0x00,
+	0xF2, 0x00, 0xF8, 0x00, 0x02, 0x01, 0x0A, 0x01,
+	0x0E, 0x01, 0x12, 0x01, 0x1E, 0x01, 0x22, 0x01,
+	0x28, 0x01, 0x2C, 0x01, 0x32, 0x01, 0x36, 0x01,
+	0x44, 0x01, 0x50, 0x01, 0x5E, 0x01, 0x72, 0x01,
+	0x76, 0x01, 0x7A, 0x01, 0x80, 0x01, 0x88, 0x01,
+	0x8C, 0x01, 0x94, 0x01, 0x9C, 0x01, 0xA0, 0x01,
+	0xA4, 0x01, 0xAA, 0x01, 0xB0, 0x01, 0xB4, 0x01,
+	0xBA, 0x01, 0xD0, 0x01, 0xDA, 0x01, 0xF6, 0x01,
+	0xFA, 0x01, 0x02, 0x02, 0x34, 0x02, 0x3C, 0x02,
+	0x44, 0x02, 0x4A, 0x02, 0x50, 0x02, 0x56, 0x02,
+	0x74, 0x02, 0x78, 0x02, 0x7E, 0x02, 0x84, 0x02,
+	0x8A, 0x02, 0x88, 0x02, 0x90, 0x02, 0x8E, 0x02,
+	0x94, 0x02, 0xA2, 0x02, 0xA8, 0x02, 0xAE, 0x02,
+	0xB4, 0x02, 0xBA, 0x02, 0xB8, 0x02, 0xC0, 0x02,
+	0xBE, 0x02, 0xC4, 0x02, 0xD0, 0x02, 0xD4, 0x02,
+	0xE0, 0x02, 0xE6, 0x02, 0xEE, 0x02, 0xF8, 0x02,
+	0xFC, 0x02, 0x06, 0x03, 0x1E, 0x03, 0x24, 0x03,
+	0x28, 0x03, 0x30, 0x03, 0x2E, 0x03, 0x3C, 0x03,
+	0x4A, 0x03, 0x4E, 0x03, 0x54, 0x03, 0x58, 0x03,
+	0x5E, 0x03, 0x66, 0x03, 0x6E, 0x03, 0x7A, 0x03,
+	0x86, 0x03, 0x8E, 0x03, 0x96, 0x03, 0xB2, 0x03,
+	0xB8, 0x03, 0xC6, 0x03, 0xCC, 0x03, 0xD4, 0x03,
+	0xDA, 0x03, 0xE8, 0x03, 0xF4, 0x03, 0xFC, 0x03,
+	0x04, 0x04, 0x20, 0x04, 0x2A, 0x04, 0x32, 0x04,
+	0x36, 0x04, 0x3E, 0x04, 0x44, 0x04, 0x42, 0x04,
+	0x48, 0x04, 0x4E, 0x04, 0x4C, 0x04, 0x54, 0x04,
+	0x52, 0x04, 0x5A, 0x04, 0x5E, 0x04, 0x62, 0x04,
+	0x68, 0x04, 0x74, 0x04, 0x7C, 0x04, 0x80, 0x04,
+	0x88, 0x04, 0x8C, 0x04, 0x94, 0x04, 0x9A, 0x04,
+	0xA2, 0x04, 0xA6, 0x04, 0xAE, 0x04, 0xB4, 0x04,
+	0xC0, 0x04, 0xCC, 0x04, 0xD8, 0x04, 0x2A, 0x05,
+	0x46, 0x05, 0x6C, 0x05, 0x00, 0x00
+};
+
+/* rvmalloc / rvfree copied from usbvideo.c
+ *
+ * Not sure why these are not yet non-statics which I can reference through
+ * usbvideo.h the same as it is in 2.4.20.  I bet this will get fixed sometime
+ * in the future.
+ *
+*/
+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);
+}
+
+struct vicam_camera {
+	u16 shutter_speed;	// capture shutter speed
+	u16 gain;		// capture gain
+
+	u8 *raw_image;		// raw data captured from the camera
+	u8 *framebuf;		// processed data in RGB24 format
+	u8 *cntrlbuf;		// area used to send control msgs
+
+	struct video_device vdev;	// v4l video device
+	struct usb_device *udev;	// usb device
+
+	/* guard against simultaneous accesses to the camera */
+	struct mutex cam_lock;
+
+	int is_initialized;
+	u8 open_count;
+	u8 bulkEndpoint;
+	int needsDummyRead;
+
+#if defined(CONFIG_VIDEO_PROC_FS)
+	struct proc_dir_entry *proc_dir;
+#endif
+
+};
+
+static int vicam_probe( struct usb_interface *intf, const struct usb_device_id *id);
+static void vicam_disconnect(struct usb_interface *intf);
+static void read_frame(struct vicam_camera *cam, int framenum);
+static void vicam_decode_color(const u8 *, u8 *);
+
+static int __send_control_msg(struct vicam_camera *cam,
+			      u8 request,
+			      u16 value,
+			      u16 index,
+			      unsigned char *cp,
+			      u16 size)
+{
+	int status;
+
+	/* cp must be memory that has been allocated by kmalloc */
+
+	status = usb_control_msg(cam->udev,
+				 usb_sndctrlpipe(cam->udev, 0),
+				 request,
+				 USB_DIR_OUT | USB_TYPE_VENDOR |
+				 USB_RECIP_DEVICE, value, index,
+				 cp, size, 1000);
+
+	status = min(status, 0);
+
+	if (status < 0) {
+		printk(KERN_INFO "Failed sending control message, error %d.\n",
+		       status);
+	}
+
+	return status;
+}
+
+static int send_control_msg(struct vicam_camera *cam,
+			    u8 request,
+			    u16 value,
+			    u16 index,
+			    unsigned char *cp,
+			    u16 size)
+{
+	int status = -ENODEV;
+	mutex_lock(&cam->cam_lock);
+	if (cam->udev) {
+		status = __send_control_msg(cam, request, value,
+					    index, cp, size);
+	}
+	mutex_unlock(&cam->cam_lock);
+	return status;
+}
+static int
+initialize_camera(struct vicam_camera *cam)
+{
+	const struct {
+		u8 *data;
+		u32 size;
+	} firmware[] = {
+		{ .data = setup1, .size = sizeof(setup1) },
+		{ .data = setup2, .size = sizeof(setup2) },
+		{ .data = setup3, .size = sizeof(setup3) },
+		{ .data = setup4, .size = sizeof(setup4) },
+		{ .data = setup5, .size = sizeof(setup5) },
+		{ .data = setup3, .size = sizeof(setup3) },
+		{ .data = NULL, .size = 0 }
+	};
+
+	int err, i;
+
+	for (i = 0, err = 0; firmware[i].data && !err; i++) {
+		memcpy(cam->cntrlbuf, firmware[i].data, firmware[i].size);
+
+		err = send_control_msg(cam, 0xff, 0, 0,
+				       cam->cntrlbuf, firmware[i].size);
+	}
+
+	return err;
+}
+
+static int
+set_camera_power(struct vicam_camera *cam, int state)
+{
+	int status;
+
+	if ((status = send_control_msg(cam, 0x50, state, 0, NULL, 0)) < 0)
+		return status;
+
+	if (state) {
+		send_control_msg(cam, 0x55, 1, 0, NULL, 0);
+	}
+
+	return 0;
+}
+
+static int
+vicam_ioctl(struct inode *inode, struct file *file, unsigned int ioctlnr, unsigned long arg)
+{
+	void __user *user_arg = (void __user *)arg;
+	struct vicam_camera *cam = file->private_data;
+	int retval = 0;
+
+	if (!cam)
+		return -ENODEV;
+
+	switch (ioctlnr) {
+		/* query capabilities */
+	case VIDIOCGCAP:
+		{
+			struct video_capability b;
+
+			DBG("VIDIOCGCAP\n");
+			memset(&b, 0, sizeof(b));
+			strcpy(b.name, "ViCam-based Camera");
+			b.type = VID_TYPE_CAPTURE;
+			b.channels = 1;
+			b.audios = 0;
+			b.maxwidth = 320;	/* VIDEOSIZE_CIF */
+			b.maxheight = 240;
+			b.minwidth = 320;	/* VIDEOSIZE_48_48 */
+			b.minheight = 240;
+
+			if (copy_to_user(user_arg, &b, sizeof(b)))
+				retval = -EFAULT;
+
+			break;
+		}
+		/* get/set video source - we are a camera and nothing else */
+	case VIDIOCGCHAN:
+		{
+			struct video_channel v;
+
+			DBG("VIDIOCGCHAN\n");
+			if (copy_from_user(&v, user_arg, sizeof(v))) {
+				retval = -EFAULT;
+				break;
+			}
+			if (v.channel != 0) {
+				retval = -EINVAL;
+				break;
+			}
+
+			v.channel = 0;
+			strcpy(v.name, "Camera");
+			v.tuners = 0;
+			v.flags = 0;
+			v.type = VIDEO_TYPE_CAMERA;
+			v.norm = 0;
+
+			if (copy_to_user(user_arg, &v, sizeof(v)))
+				retval = -EFAULT;
+			break;
+		}
+
+	case VIDIOCSCHAN:
+		{
+			int v;
+
+			if (copy_from_user(&v, user_arg, sizeof(v)))
+				retval = -EFAULT;
+			DBG("VIDIOCSCHAN %d\n", v);
+
+			if (retval == 0 && v != 0)
+				retval = -EINVAL;
+
+			break;
+		}
+
+		/* image properties */
+	case VIDIOCGPICT:
+		{
+			struct video_picture vp;
+			DBG("VIDIOCGPICT\n");
+			memset(&vp, 0, sizeof (struct video_picture));
+			vp.brightness = cam->gain << 8;
+			vp.depth = 24;
+			vp.palette = VIDEO_PALETTE_RGB24;
+			if (copy_to_user(user_arg, &vp, sizeof (struct video_picture)))
+				retval = -EFAULT;
+			break;
+		}
+
+	case VIDIOCSPICT:
+		{
+			struct video_picture vp;
+
+			if (copy_from_user(&vp, user_arg, sizeof(vp))) {
+				retval = -EFAULT;
+				break;
+			}
+
+			DBG("VIDIOCSPICT depth = %d, pal = %d\n", vp.depth,
+			    vp.palette);
+
+			cam->gain = vp.brightness >> 8;
+
+			if (vp.depth != 24
+			    || vp.palette != VIDEO_PALETTE_RGB24)
+				retval = -EINVAL;
+
+			break;
+		}
+
+		/* get/set capture window */
+	case VIDIOCGWIN:
+		{
+			struct video_window vw;
+			vw.x = 0;
+			vw.y = 0;
+			vw.width = 320;
+			vw.height = 240;
+			vw.chromakey = 0;
+			vw.flags = 0;
+			vw.clips = NULL;
+			vw.clipcount = 0;
+
+			DBG("VIDIOCGWIN\n");
+
+			if (copy_to_user(user_arg, (void *)&vw, sizeof(vw)))
+				retval = -EFAULT;
+
+			// I'm not sure what the deal with a capture window is, it is very poorly described
+			// in the doc.  So I won't support it now.
+			break;
+		}
+
+	case VIDIOCSWIN:
+		{
+
+			struct video_window vw;
+
+			if (copy_from_user(&vw, user_arg, sizeof(vw))) {
+				retval = -EFAULT;
+				break;
+			}
+
+			DBG("VIDIOCSWIN %d x %d\n", vw.width, vw.height);
+
+			if ( vw.width != 320 || vw.height != 240 )
+				retval = -EFAULT;
+
+			break;
+		}
+
+		/* mmap interface */
+	case VIDIOCGMBUF:
+		{
+			struct video_mbuf vm;
+			int i;
+
+			DBG("VIDIOCGMBUF\n");
+			memset(&vm, 0, sizeof (vm));
+			vm.size =
+			    VICAM_MAX_FRAME_SIZE * VICAM_FRAMES;
+			vm.frames = VICAM_FRAMES;
+			for (i = 0; i < VICAM_FRAMES; i++)
+				vm.offsets[i] = VICAM_MAX_FRAME_SIZE * i;
+
+			if (copy_to_user(user_arg, (void *)&vm, sizeof(vm)))
+				retval = -EFAULT;
+
+			break;
+		}
+
+	case VIDIOCMCAPTURE:
+		{
+			struct video_mmap vm;
+			// int video_size;
+
+			if (copy_from_user((void *)&vm, user_arg, sizeof(vm))) {
+				retval = -EFAULT;
+				break;
+			}
+
+			DBG("VIDIOCMCAPTURE frame=%d, height=%d, width=%d, format=%d.\n",vm.frame,vm.width,vm.height,vm.format);
+
+			if ( vm.frame >= VICAM_FRAMES || vm.format != VIDEO_PALETTE_RGB24 )
+				retval = -EINVAL;
+
+			// in theory right here we'd start the image capturing
+			// (fill in a bulk urb and submit it asynchronously)
+			//
+			// Instead we're going to do a total hack job for now and
+			// retrieve the frame in VIDIOCSYNC
+
+			break;
+		}
+
+	case VIDIOCSYNC:
+		{
+			int frame;
+
+			if (copy_from_user((void *)&frame, user_arg, sizeof(int))) {
+				retval = -EFAULT;
+				break;
+			}
+			DBG("VIDIOCSYNC: %d\n", frame);
+
+			read_frame(cam, frame);
+			vicam_decode_color(cam->raw_image,
+					   cam->framebuf +
+					   frame * VICAM_MAX_FRAME_SIZE );
+
+			break;
+		}
+
+		/* pointless to implement overlay with this camera */
+	case VIDIOCCAPTURE:
+	case VIDIOCGFBUF:
+	case VIDIOCSFBUF:
+	case VIDIOCKEY:
+		retval = -EINVAL;
+		break;
+
+		/* tuner interface - we have none */
+	case VIDIOCGTUNER:
+	case VIDIOCSTUNER:
+	case VIDIOCGFREQ:
+	case VIDIOCSFREQ:
+		retval = -EINVAL;
+		break;
+
+		/* audio interface - we have none */
+	case VIDIOCGAUDIO:
+	case VIDIOCSAUDIO:
+		retval = -EINVAL;
+		break;
+	default:
+		retval = -ENOIOCTLCMD;
+		break;
+	}
+
+	return retval;
+}
+
+static int
+vicam_open(struct inode *inode, struct file *file)
+{
+	struct video_device *dev = video_devdata(file);
+	struct vicam_camera *cam =
+	    (struct vicam_camera *) dev->priv;
+	DBG("open\n");
+
+	if (!cam) {
+		printk(KERN_ERR
+		       "vicam video_device improperly initialized");
+		return -EINVAL;
+	}
+
+	/* the videodev_lock held above us protects us from
+	 * simultaneous opens...for now. we probably shouldn't
+	 * rely on this fact forever.
+	 */
+
+	if (cam->open_count > 0) {
+		printk(KERN_INFO
+		       "vicam_open called on already opened camera");
+		return -EBUSY;
+	}
+
+	cam->raw_image = kmalloc(VICAM_MAX_READ_SIZE, GFP_KERNEL);
+	if (!cam->raw_image) {
+		return -ENOMEM;
+	}
+
+	cam->framebuf = rvmalloc(VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
+	if (!cam->framebuf) {
+		kfree(cam->raw_image);
+		return -ENOMEM;
+	}
+
+	cam->cntrlbuf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!cam->cntrlbuf) {
+		kfree(cam->raw_image);
+		rvfree(cam->framebuf, VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
+		return -ENOMEM;
+	}
+
+	// First upload firmware, then turn the camera on
+
+	if (!cam->is_initialized) {
+		initialize_camera(cam);
+
+		cam->is_initialized = 1;
+	}
+
+	set_camera_power(cam, 1);
+
+	cam->needsDummyRead = 1;
+	cam->open_count++;
+
+	file->private_data = cam;
+
+	return 0;
+}
+
+static int
+vicam_close(struct inode *inode, struct file *file)
+{
+	struct vicam_camera *cam = file->private_data;
+	int open_count;
+	struct usb_device *udev;
+
+	DBG("close\n");
+
+	/* it's not the end of the world if
+	 * we fail to turn the camera off.
+	 */
+
+	set_camera_power(cam, 0);
+
+	kfree(cam->raw_image);
+	rvfree(cam->framebuf, VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
+	kfree(cam->cntrlbuf);
+
+	mutex_lock(&cam->cam_lock);
+
+	cam->open_count--;
+	open_count = cam->open_count;
+	udev = cam->udev;
+
+	mutex_unlock(&cam->cam_lock);
+
+	if (!open_count && !udev) {
+		kfree(cam);
+	}
+
+	return 0;
+}
+
+static void vicam_decode_color(const u8 *data, u8 *rgb)
+{
+	/* vicam_decode_color - Convert from Vicam Y-Cr-Cb to RGB
+	 * Copyright (C) 2002 Monroe Williams (monroe@pobox.com)
+	 */
+
+	int i, prevY, nextY;
+
+	prevY = 512;
+	nextY = 512;
+
+	data += VICAM_HEADER_SIZE;
+
+	for( i = 0; i < 240; i++, data += 512 ) {
+		const int y = ( i * 242 ) / 240;
+
+		int j, prevX, nextX;
+		int Y, Cr, Cb;
+
+		if ( y == 242 - 1 ) {
+			nextY = -512;
+		}
+
+		prevX = 1;
+		nextX = 1;
+
+		for ( j = 0; j < 320; j++, rgb += 3 ) {
+			const int x = ( j * 512 ) / 320;
+			const u8 * const src = &data[x];
+
+			if ( x == 512 - 1 ) {
+				nextX = -1;
+			}
+
+			Cr = ( src[prevX] - src[0] ) +
+				( src[nextX] - src[0] );
+			Cr /= 2;
+
+			Cb = ( src[prevY] - src[prevX + prevY] ) +
+				( src[prevY] - src[nextX + prevY] ) +
+				( src[nextY] - src[prevX + nextY] ) +
+				( src[nextY] - src[nextX + nextY] );
+			Cb /= 4;
+
+			Y = 1160 * ( src[0] + ( Cr / 2 ) - 16 );
+
+			if ( i & 1 ) {
+				int Ct = Cr;
+				Cr = Cb;
+				Cb = Ct;
+			}
+
+			if ( ( x ^ i ) & 1 ) {
+				Cr = -Cr;
+				Cb = -Cb;
+			}
+
+			rgb[0] = clamp( ( ( Y + ( 2017 * Cb ) ) +
+					500 ) / 900, 0, 255 );
+			rgb[1] = clamp( ( ( Y - ( 392 * Cb ) -
+					  ( 813 * Cr ) ) +
+					  500 ) / 1000, 0, 255 );
+			rgb[2] = clamp( ( ( Y + ( 1594 * Cr ) ) +
+					500 ) / 1300, 0, 255 );
+
+			prevX = -1;
+		}
+
+		prevY = -512;
+	}
+}
+
+static void
+read_frame(struct vicam_camera *cam, int framenum)
+{
+	unsigned char *request = cam->cntrlbuf;
+	int realShutter;
+	int n;
+	int actual_length;
+
+	if (cam->needsDummyRead) {
+		cam->needsDummyRead = 0;
+		read_frame(cam, framenum);
+	}
+
+	memset(request, 0, 16);
+	request[0] = cam->gain;	// 0 = 0% gain, FF = 100% gain
+
+	request[1] = 0;	// 512x242 capture
+
+	request[2] = 0x90;	// the function of these two bytes
+	request[3] = 0x07;	// is not yet understood
+
+	if (cam->shutter_speed > 60) {
+		// Short exposure
+		realShutter =
+		    ((-15631900 / cam->shutter_speed) + 260533) / 1000;
+		request[4] = realShutter & 0xFF;
+		request[5] = (realShutter >> 8) & 0xFF;
+		request[6] = 0x03;
+		request[7] = 0x01;
+	} else {
+		// Long exposure
+		realShutter = 15600 / cam->shutter_speed - 1;
+		request[4] = 0;
+		request[5] = 0;
+		request[6] = realShutter & 0xFF;
+		request[7] = realShutter >> 8;
+	}
+
+	// Per John Markus Bjørndalen, byte at index 8 causes problems if it isn't 0
+	request[8] = 0;
+	// bytes 9-15 do not seem to affect exposure or image quality
+
+	mutex_lock(&cam->cam_lock);
+
+	if (!cam->udev) {
+		goto done;
+	}
+
+	n = __send_control_msg(cam, 0x51, 0x80, 0, request, 16);
+
+	if (n < 0) {
+		printk(KERN_ERR
+		       " Problem sending frame capture control message");
+		goto done;
+	}
+
+	n = usb_bulk_msg(cam->udev,
+			 usb_rcvbulkpipe(cam->udev, cam->bulkEndpoint),
+			 cam->raw_image,
+			 512 * 242 + 128, &actual_length, 10000);
+
+	if (n < 0) {
+		printk(KERN_ERR "Problem during bulk read of frame data: %d\n",
+		       n);
+	}
+
+ done:
+	mutex_unlock(&cam->cam_lock);
+}
+
+static ssize_t
+vicam_read( struct file *file, char __user *buf, size_t count, loff_t *ppos )
+{
+	struct vicam_camera *cam = file->private_data;
+
+	DBG("read %d bytes.\n", (int) count);
+
+	if (*ppos >= VICAM_MAX_FRAME_SIZE) {
+		*ppos = 0;
+		return 0;
+	}
+
+	if (*ppos == 0) {
+		read_frame(cam, 0);
+		vicam_decode_color(cam->raw_image,
+				   cam->framebuf +
+				   0 * VICAM_MAX_FRAME_SIZE);
+	}
+
+	count = min_t(size_t, count, VICAM_MAX_FRAME_SIZE - *ppos);
+
+	if (copy_to_user(buf, &cam->framebuf[*ppos], count)) {
+		count = -EFAULT;
+	} else {
+		*ppos += count;
+	}
+
+	if (count == VICAM_MAX_FRAME_SIZE) {
+		*ppos = 0;
+	}
+
+	return count;
+}
+
+
+static int
+vicam_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	// TODO: allocate the raw frame buffer if necessary
+	unsigned long page, pos;
+	unsigned long start = vma->vm_start;
+	unsigned long size  = vma->vm_end-vma->vm_start;
+	struct vicam_camera *cam = file->private_data;
+
+	if (!cam)
+		return -ENODEV;
+
+	DBG("vicam_mmap: %ld\n", size);
+
+	/* We let mmap allocate as much as it wants because Linux was adding 2048 bytes
+	 * to the size the application requested for mmap and it was screwing apps up.
+	 if (size > VICAM_FRAMES*VICAM_MAX_FRAME_SIZE)
+	 return -EINVAL;
+	 */
+
+	pos = (unsigned long)cam->framebuf;
+	while (size > 0) {
+		page = vmalloc_to_pfn((void *)pos);
+		if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED))
+			return -EAGAIN;
+
+		start += PAGE_SIZE;
+		pos += PAGE_SIZE;
+		if (size > PAGE_SIZE)
+			size -= PAGE_SIZE;
+		else
+			size = 0;
+	}
+
+	return 0;
+}
+
+#if defined(CONFIG_VIDEO_PROC_FS)
+
+static struct proc_dir_entry *vicam_proc_root = NULL;
+
+static int vicam_read_helper(char *page, char **start, off_t off,
+				int count, int *eof, int value)
+{
+	char *out = page;
+	int len;
+
+	out += sprintf(out, "%d",value);
+
+	len = out - page;
+	len -= off;
+	if (len < count) {
+		*eof = 1;
+		if (len <= 0)
+			return 0;
+	} else
+		len = count;
+
+	*start = page + off;
+	return len;
+}
+
+static int vicam_read_proc_shutter(char *page, char **start, off_t off,
+				int count, int *eof, void *data)
+{
+	return vicam_read_helper(page,start,off,count,eof,
+				((struct vicam_camera *)data)->shutter_speed);
+}
+
+static int vicam_read_proc_gain(char *page, char **start, off_t off,
+				int count, int *eof, void *data)
+{
+	return vicam_read_helper(page,start,off,count,eof,
+				((struct vicam_camera *)data)->gain);
+}
+
+static int
+vicam_write_proc_shutter(struct file *file, const char *buffer,
+			 unsigned long count, void *data)
+{
+	u16 stmp;
+	char kbuf[8];
+	struct vicam_camera *cam = (struct vicam_camera *) data;
+
+	if (count > 6)
+		return -EINVAL;
+
+	if (copy_from_user(kbuf, buffer, count))
+		return -EFAULT;
+
+	stmp = (u16) simple_strtoul(kbuf, NULL, 10);
+	if (stmp < 4 || stmp > 32000)
+		return -EINVAL;
+
+	cam->shutter_speed = stmp;
+
+	return count;
+}
+
+static int
+vicam_write_proc_gain(struct file *file, const char *buffer,
+		      unsigned long count, void *data)
+{
+	u16 gtmp;
+	char kbuf[8];
+
+	struct vicam_camera *cam = (struct vicam_camera *) data;
+
+	if (count > 4)
+		return -EINVAL;
+
+	if (copy_from_user(kbuf, buffer, count))
+		return -EFAULT;
+
+	gtmp = (u16) simple_strtoul(kbuf, NULL, 10);
+	if (gtmp > 255)
+		return -EINVAL;
+	cam->gain = gtmp;
+
+	return count;
+}
+
+static void
+vicam_create_proc_root(void)
+{
+	vicam_proc_root = proc_mkdir("video/vicam", NULL);
+
+	if (vicam_proc_root)
+		vicam_proc_root->owner = THIS_MODULE;
+	else
+		printk(KERN_ERR
+		       "could not create /proc entry for vicam!");
+}
+
+static void
+vicam_destroy_proc_root(void)
+{
+	if (vicam_proc_root)
+		remove_proc_entry("video/vicam", 0);
+}
+
+static void
+vicam_create_proc_entry(struct vicam_camera *cam)
+{
+	char name[64];
+	struct proc_dir_entry *ent;
+
+	DBG(KERN_INFO "vicam: creating proc entry\n");
+
+	if (!vicam_proc_root || !cam) {
+		printk(KERN_INFO
+		       "vicam: could not create proc entry, %s pointer is null.\n",
+		       (!cam ? "camera" : "root"));
+		return;
+	}
+
+	sprintf(name, "video%d", cam->vdev.minor);
+
+	cam->proc_dir = proc_mkdir(name, vicam_proc_root);
+
+	if ( !cam->proc_dir )
+		return; // FIXME: We should probably return an error here
+
+	ent = create_proc_entry("shutter", S_IFREG | S_IRUGO | S_IWUSR,
+				cam->proc_dir);
+	if (ent) {
+		ent->data = cam;
+		ent->read_proc = vicam_read_proc_shutter;
+		ent->write_proc = vicam_write_proc_shutter;
+		ent->size = 64;
+	}
+
+	ent = create_proc_entry("gain", S_IFREG | S_IRUGO | S_IWUSR,
+				cam->proc_dir);
+	if (ent) {
+		ent->data = cam;
+		ent->read_proc = vicam_read_proc_gain;
+		ent->write_proc = vicam_write_proc_gain;
+		ent->size = 64;
+	}
+}
+
+static void
+vicam_destroy_proc_entry(void *ptr)
+{
+	struct vicam_camera *cam = (struct vicam_camera *) ptr;
+	char name[16];
+
+	if ( !cam->proc_dir )
+		return;
+
+	sprintf(name, "video%d", cam->vdev.minor);
+	remove_proc_entry("shutter", cam->proc_dir);
+	remove_proc_entry("gain", cam->proc_dir);
+	remove_proc_entry(name,vicam_proc_root);
+	cam->proc_dir = NULL;
+
+}
+
+#else
+static inline void vicam_create_proc_root(void) { }
+static inline void vicam_destroy_proc_root(void) { }
+static inline void vicam_create_proc_entry(struct vicam_camera *cam) { }
+static inline void vicam_destroy_proc_entry(void *ptr) { }
+#endif
+
+static struct file_operations vicam_fops = {
+	.owner		= THIS_MODULE,
+	.open		= vicam_open,
+	.release	= vicam_close,
+	.read		= vicam_read,
+	.mmap		= vicam_mmap,
+	.ioctl		= vicam_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
+	.llseek		= no_llseek,
+};
+
+static struct video_device vicam_template = {
+	.owner 		= THIS_MODULE,
+	.name 		= "ViCam-based USB Camera",
+	.type 		= VID_TYPE_CAPTURE,
+	.hardware 	= VID_HARDWARE_VICAM,
+	.fops 		= &vicam_fops,
+	.minor 		= -1,
+};
+
+/* table of devices that work with this driver */
+static struct usb_device_id vicam_table[] = {
+	{USB_DEVICE(USB_VICAM_VENDOR_ID, USB_VICAM_PRODUCT_ID)},
+	{}			/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, vicam_table);
+
+static struct usb_driver vicam_driver = {
+	.name		= "vicam",
+	.probe		= vicam_probe,
+	.disconnect	= vicam_disconnect,
+	.id_table	= vicam_table
+};
+
+/**
+ *	vicam_probe
+ *	@intf: the interface
+ *	@id: the device id
+ *
+ *	Called by the usb core when a new device is connected that it thinks
+ *	this driver might be interested in.
+ */
+static int
+vicam_probe( struct usb_interface *intf, const struct usb_device_id *id)
+{
+	struct usb_device *dev = interface_to_usbdev(intf);
+	int bulkEndpoint = 0;
+	const struct usb_host_interface *interface;
+	const struct usb_endpoint_descriptor *endpoint;
+	struct vicam_camera *cam;
+
+	printk(KERN_INFO "ViCam based webcam connected\n");
+
+	interface = intf->cur_altsetting;
+
+	DBG(KERN_DEBUG "Interface %d. has %u. endpoints!\n",
+	       interface->desc.bInterfaceNumber, (unsigned) (interface->desc.bNumEndpoints));
+	endpoint = &interface->endpoint[0].desc;
+
+	if ((endpoint->bEndpointAddress & 0x80) &&
+	    ((endpoint->bmAttributes & 3) == 0x02)) {
+		/* we found a bulk in endpoint */
+		bulkEndpoint = endpoint->bEndpointAddress;
+	} else {
+		printk(KERN_ERR
+		       "No bulk in endpoint was found ?! (this is bad)\n");
+	}
+
+	if ((cam =
+	     kmalloc(sizeof (struct vicam_camera), GFP_KERNEL)) == NULL) {
+		printk(KERN_WARNING
+		       "could not allocate kernel memory for vicam_camera struct\n");
+		return -ENOMEM;
+	}
+
+	memset(cam, 0, sizeof (struct vicam_camera));
+
+	cam->shutter_speed = 15;
+
+	mutex_init(&cam->cam_lock);
+
+	memcpy(&cam->vdev, &vicam_template,
+	       sizeof (vicam_template));
+	cam->vdev.priv = cam;	// sort of a reverse mapping for those functions that get vdev only
+
+	cam->udev = dev;
+	cam->bulkEndpoint = bulkEndpoint;
+
+	if (video_register_device(&cam->vdev, VFL_TYPE_GRABBER, -1) == -1) {
+		kfree(cam);
+		printk(KERN_WARNING "video_register_device failed\n");
+		return -EIO;
+	}
+
+	vicam_create_proc_entry(cam);
+
+	printk(KERN_INFO "ViCam webcam driver now controlling video device %d\n",cam->vdev.minor);
+
+	usb_set_intfdata (intf, cam);
+
+	return 0;
+}
+
+static void
+vicam_disconnect(struct usb_interface *intf)
+{
+	int open_count;
+	struct vicam_camera *cam = usb_get_intfdata (intf);
+	usb_set_intfdata (intf, NULL);
+
+	/* we must unregister the device before taking its
+	 * cam_lock. This is because the video open call
+	 * holds the same lock as video unregister. if we
+	 * unregister inside of the cam_lock and open also
+	 * uses the cam_lock, we get deadlock.
+	 */
+
+	video_unregister_device(&cam->vdev);
+
+	/* stop the camera from being used */
+
+	mutex_lock(&cam->cam_lock);
+
+	/* mark the camera as gone */
+
+	cam->udev = NULL;
+
+	vicam_destroy_proc_entry(cam);
+
+	/* the only thing left to do is synchronize with
+	 * our close/release function on who should release
+	 * the camera memory. if there are any users using the
+	 * camera, it's their job. if there are no users,
+	 * it's ours.
+	 */
+
+	open_count = cam->open_count;
+
+	mutex_unlock(&cam->cam_lock);
+
+	if (!open_count) {
+		kfree(cam);
+	}
+
+	printk(KERN_DEBUG "ViCam-based WebCam disconnected\n");
+}
+
+/*
+ */
+static int __init
+usb_vicam_init(void)
+{
+	int retval;
+	DBG(KERN_INFO "ViCam-based WebCam driver startup\n");
+	vicam_create_proc_root();
+	retval = usb_register(&vicam_driver);
+	if (retval)
+		printk(KERN_WARNING "usb_register failed!\n");
+	return retval;
+}
+
+static void __exit
+usb_vicam_exit(void)
+{
+	DBG(KERN_INFO
+	       "ViCam-based WebCam driver shutdown\n");
+
+	usb_deregister(&vicam_driver);
+	vicam_destroy_proc_root();
+}
+
+module_init(usb_vicam_init);
+module_exit(usb_vicam_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");