V4L/DVB (4922): Add usbvision driver

This patch adds usbvision into V4L/DVB HG tree.
Usbvision driver is a GPL driver, made by:
	Joerg Heckenbach <joerg@heckenbach-aw.de>
		and
	Dwaine Garden <DwaineGarden@rogers.com>
V4L2 migration made by:
	Thierry Merle <thierry.merle@free.fr>
Kconfig/Makefile scripts by:
	Mauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: Joerg Heckenbach <joerg@heckenbach-aw.de>
Signed-off-by: Dwaine Garden <dwainegarden@rogers.com>
Signed-off-by: Thierry Merle <thierry.merle@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

8 files changed, 6849 insertions, 0 deletions

diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index ef803106b79..9365a8dd44e 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -686,6 +686,18 @@ source "drivers/media/video/pvrusb2/Kconfig"
 
 source "drivers/media/video/em28xx/Kconfig"
 
+config VIDEO_USBVISION
+	tristate "USB video devices based on NT1003/1005/1005"
+	depends on I2C && VIDEO_V4L2
+	select VIDEO_SAA711X if VIDEO_HELPER_CHIPS_AUTO
+	---help---
+	  There are more than 50 different USB video devices based on
+	  NT1003/1004/1005 USB Bridges. This driver enables using those
+	  devices.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ovcamchip.
+
 source "drivers/media/video/usbvideo/Kconfig"
 
 source "drivers/media/video/et61x251/Kconfig"
diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile
index 20b9cbc144b..9b1f3f06bb7 100644
--- a/drivers/media/video/Makefile
+++ b/drivers/media/video/Makefile
@@ -62,6 +62,7 @@ obj-$(CONFIG_VIDEO_MEYE) += meye.o
 obj-$(CONFIG_VIDEO_SAA7134) += ir-kbd-i2c.o saa7134/
 obj-$(CONFIG_VIDEO_CX88) += cx88/
 obj-$(CONFIG_VIDEO_EM28XX) += em28xx/
+obj-$(CONFIG_VIDEO_USBVISION) += usbvision/
 obj-$(CONFIG_VIDEO_TVP5150) += tvp5150.o
 obj-$(CONFIG_VIDEO_PVRUSB2) += pvrusb2/
 obj-$(CONFIG_VIDEO_MSP3400) += msp3400.o
diff --git a/drivers/media/video/usbvision/Makefile b/drivers/media/video/usbvision/Makefile
new file mode 100644
index 00000000000..bad2eee2dbb
--- /dev/null
+++ b/drivers/media/video/usbvision/Makefile
@@ -0,0 +1,5 @@
+usbvision-objs  := usbvision-core.o usbvision-i2c.o
+
+obj-$(CONFIG_VIDEO_USBVISION) += usbvision.o
+
+EXTRA_CFLAGS += -Idrivers/media/video
diff --git a/drivers/media/video/usbvision/usbvision-core.c b/drivers/media/video/usbvision/usbvision-core.c
new file mode 100644
index 00000000000..62699ca020a
--- /dev/null
+++ b/drivers/media/video/usbvision/usbvision-core.c
@@ -0,0 +1,5880 @@
+/*
+ * USB USBVISION Video device driver 0.9.8.3cvs (For Kernel 2.4.19-2.4.32 + 2.6.0-2.6.16)
+ *
+ * 
+ *
+ * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
+ *
+ * This module is part of usbvision driver project.
+ *
+ * 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.
+ *
+ * Let's call the version 0.... until compression decoding is completely
+ * implemented.
+ *
+ * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach.
+ * It was based on USB CPiA driver written by Peter Pregler,
+ * Scott J. Bertin and Johannes Erdfelt
+ * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler &
+ * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink
+ * Updates to driver completed by Dwaine P. Garden
+ *
+ * History:
+ *
+ * Mar. 2000 - 15.12.2000:  (0.0.0 - 0.2.0)
+ *     Several alpha drivers and the first beta.
+ *
+ * Since Dec. 2000:  (0.2.1) or (v2.1)
+ *     Code changes or updates by Dwaine Garden and every other person.
+ *
+ *     Added: New Hauppauge TV device  Vendor  ID: 0x0573
+ *                                     Product ID: 0x4D01
+ *            (Thanks to Giovanni Garberoglio)
+ *
+ *     Added: UK Hauppauge WinTV-USB   Vendor  ID: 0x0573
+ *                                     Product ID: 0x4D02
+ *            (Thanks to Derek Freeman-Jones)
+ *
+ * Feb, 2001 - Apr 08, 2001:  (0.3.0)
+ *     - Some fixes. Driver is now more stable.
+ *     - Scratch is organized as ring-buffer now for better performance
+ *     - DGA (overlay) is now supported.
+ *       !!!!Danger!!!! Clipping is not yet implemented. Your system will
+ *       crash if your video window leaves the screen!!!
+ *     - Max. Framesize is set to 320x240. There isn't more memory on the
+ *       nt1003 video device for the FIFO.
+ *     - Supported video palettes: RGB565, RGB555, RGB24, RGB32
+ *
+ *
+ * Apr 15, 2001:  (0.3.1-test...)
+ *     - Clipping is implemented
+ *     - NTSC is now coloured (Thanks to Dwaine Garden)
+ *     - Added SECAM colour detection in saa7111-new
+ *     - Added: French Hauppauge WinTV USB  Vendor ID: 0x0573
+ *                                          Product ID: 0x4D03
+ *              (Thanks to Julius Hrivnac)
+ *     - Added: US Hauppauge WINTV USB  Vendor ID: 0x0573
+ *                                      Product ID: 0x4D00
+ *              (Thanks to  Derrick J Brashear)
+ *     - Changes for adding new devices. There's now a table in usbvision.h.
+ *       Adding your devices data to the usbvision_device_data table is all
+ *       you need to add a new device.
+ *
+ * May 11, 2001: (0.3.2-test...) (Thanks to Derek Freeman-Jones)
+ *     - Support YUV422 raw format for people with hardware scaling.
+ *     - Only power on the device when opened (use option PowerOnAtOpen=0 to disable it).
+ *     - Turn off audio so we can listen to Line In.
+ *
+ * July 5, 2001 - (Patch the driver to run with Kernel 2.4.6)
+ *     - Fixed a problem with the number of parameters passed to video_register_device.
+ *
+ * July 6, 2001 - Added: HAUPPAUGE WINTV-USB FM USA Vendor  ID: 0x0573
+ *                                              	Product ID: 0x4D10
+ *       (Thanks to Braddock Gaskill)
+ *                Added: USBGear USBG-V1 resp. HAMA USB
+ *                                      Vendor  ID: 0x0573
+ *                                      Product ID: 0x0003
+ *       (Thanks to Bradley A. Singletary and Juergen Weigert)
+ *
+ * Jan 24, 2002 - (0.3.3-test...)
+ *     - Moved all global variables that are device specific the usb_usbvision struct
+ *     - Fixed the 64x48 unchangable image in xawtv when starting it with overlay
+ *     - Add VideoNorm and TunerType to the usb_device_data table
+ *     - Checked the audio channels and mute for HAUPPAUGE WinTV USB FM
+ *     - Implemented the power on when opening the device. But some software opens
+ *       the device several times when starting. So the i2c parts are just registered
+ *       by an open, when they become deregistered by the next close. You can speed
+ *       up tuner detection, when adding "options tuner addr=your_addr" to /etc/modules.conf
+ *     - Begin to resize the frame in width and height. So it will be possible to watch i.e.
+ *       384x288 pixels at 23 fps.
+ *
+ * Feb 10, 2002
+ *     - Added radio device
+ *
+ *
+ * Jul 30, 2002 - (Thanks Cameron Maxwell)
+ *     - Changes to usbvision.h --fixed usbvision device data structure, incorrectly had (0x0573, 0x4d21) for WinTV-USB II, should be 0x4d20.
+ *     - Changes for device WinTV-USB II (0x0573. 0x4D21).  It does not have a FM tuner.
+ *     - Added the real device HAUPPAUGE WINTV-USB II (PAL) to the device structure in usbvision.h.
+ *     - Changes to saa7113-new, the video is 8 bit data for the Phillips SAA7113 not 16bit like SAA7111.
+ *     - Tuned lots of setup registers for the Phillips SAA7113 video chipset.
+ *     - Changes to the supplied makefile. (Dwaine Garden) Still needs to be fixed so it will compile modules on different distrubutions.
+ *
+ *
+ * Aug 10, 2002 - (Thanks Mike Klinke)
+ *     - Changes to usbvision.txt -- Fixed instructions on the location to copy the contents of the tgz file.
+ *     - Added device WinTV-USB FM Model 621 (0x0573. 0x4D30). There is another device which carries the same name. Kept that device in the device structure.
+ *
+ * Aug 12, 2002 - Dwaine Garden
+ *     - Added the ability to read the NT100x chip for the MaxISOPacketLength and USB Bandwidth
+ *       Setting of the video device.
+ *     - Adjustments to the SAA7113H code for proper video output.
+ *     - Changes to usbvision.h, so all the devices with FM tuners are working.
+ *
+ * Feb 10, 2003 - Joerg Heckenbach
+ *     - fixed endian bug for Motorola PPC
+ *
+ * Feb 13, 2003 - Joerg Heckenbach
+ *     - fixed Vin_Reg setting and presetting from usbvision_device_data()
+ *
+ * Apr 19, 2003 - Dwaine Garden
+ *     - Fixed compiling errors under RedHat v9.0. from uvirt_to_kva and usbvision_mmap. (Thanks Cameron Maxwell)
+ *     - Changed pte_offset to pte_offset_kernel.
+ *     - Changed remap_page_range and added additional parameter to function.
+ *     - Change setup parameters for the D-Link V100 USB device
+ *     - Added a new device to the usbvision driver.  Pinnacle Studio PCTV USB (PAL) 0x2304 0x0110
+ *     - Screwed up the sourceforge.net cvs respository!  8*)
+ *
+ * Apr 22, 2002 - Dwaine Garden
+ *     - Added a new device to the usbvision driver. Dazzle DVC-80 (PAL) 0x07d0 0x0004. (Thanks Carl Anderson)
+ *     - Changes to some of the comments.
+ *
+ * June 06, 2002 - Ivan, Dwaine Garden
+ *     - Ivan updates for fine tuning device parameters without driver recompiling. (Ivan)
+ *     - Changes to some of the comments. (Dwaine Garden)
+ *     - Changes to the makefile - Better CPU settings. (Ivan)
+ *     - Changes to device Hauppauge WinTv-USB III (PAL) FM Model 568 - Fine tuning parameters (Ivan)
+ *
+ *
+ * Oct 16, 2003 - 0.9.0 - Joerg Heckenbach
+ *     - Implementation of the first part of the decompression algorithm for intra frames.
+ *       The resolution has to be 320x240. A dynamic adaption of compression deepth is
+ *       missing yet.
+ *
+ * Oct 22, 2003 - 0.9.1 - Joerg Heckenbach
+ *     - Implementation of the decompression algorithm for inter frames.
+ *       The resolution still has to be 320x240.
+ *
+ * Nov 2003 - Feb 2004 - 0.9.2 to 0.9.3 - Joerg Heckenbach
+ *     - Implement last unknown compressed block type. But color is still noisy.
+ *     - Finding criteria for adaptive compression adjustment.
+ *     - Porting to 2.6 kernels, but still working under 2.4
+ *
+ * Feb 04, 2004 - 0.9.4 Joerg Heckenbach
+ *     - Found bug in color decompression. Color is OK now.
+ *
+ * Feb 09, 2004 - 0.9.5 Joerg Heckenbach
+ *     - Add auto-recognition of chip type NT1003 or NT1004.
+ *     - Add adaptive compression adjustment.
+ *     - Patched saa7113 multiplexer switching (Thanks to Orlando F.S. Bordoni)
+ *
+ * Feb 24, 2004 - 0.9.6 Joerg Heckenbach
+ *     - Add a timer to wait before poweroff at close, to save start time in
+ *       some video applications
+ *
+ * Mar 4, 2004 - 0.9.6 Dwaine Garden
+ *     - Added device Global Village GV-007 (NTSC) to usbvision.h (Thanks to Abe Skolnik)
+ *     - Forgot to add this device to the driver. 8*)
+ *
+ * June 2, 2004 - 0.9.6 Dwaine Garden
+ *     - Fixed sourceforge.net cvs repository.
+ *     - Added #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,26) for .owner to help compiling under kernels 2.4.x which do not have the i2c v2.8.x updates.
+ *     - Added device Hauppauge WinTv-USB III (PAL) FM Model 597 to usbvision.h	
+ *
+ * July 1, 2004 -0.9.6 Dwaine Garden
+ *     - Patch was submitted by Hal Finkel to fix the problem with the tuner not working under kernel 2.6.7.
+ *     - Thanks Hal.....
+ *
+ * July 30, 2004 - 0.9.6 Dwaine Garden
+ *     - Patch was submitted by Tobias Diaz to fix Model ID mismatch in usbvision.h.
+ *     - Thanks.....
+ *
+ * August 12, 2004 - 0.9.6 Dwaine Garden
+ *     - Updated the readme file so people could install the driver under the configuration file for kernel 2.6.x recompiles.  Now people can use make xconfig!
+ *     - Added new device "Camtel Technology Corp TVB330-USB FM".
+ *     - Sourceforge.net CVS has been updated with all the changes.
+ *
+ * August 20, 2004 - 0.9.7 Dwaine Garden
+ *     - Added Device "Hauppauge USB Live Model 600"
+ *     - Fixed up all the devices which did not have a default tuner type in usbvision.h.  It's best guess, at least until someone with the device tells me otherwise.
+ *     - Sourceforge.net CVS has been updated with all the changes.
+ *     - Clean up the driver.
+ *
+ * September 13, 2004 - 0.9.8 Dwaine Garden
+ *     - Changed usbvision_muxsel to address the problem with black & white s-video output for NT1004 devices with saa7114 video decoder.  Thanks to Emmanuel for the patch and testing.
+ *     - Fixed up SECAM devices which could not properly output video.  Changes to usbmuxsel.  Thanks to Emmanuel for the patch and everyone with a SECAM device which help test.
+ *     - Removed some commented out code.  Clean up.
+ *     - Tried to fix up the annoying empty directories in the sourceforge.net cvs.   Fuck it up again.  8*(	
+ *
+ * November 15, 2004 - 0.9.8 Dwaine Garden
+ *     - Release new tar - 0.9.8 on sourceforge.net
+ *     - Added some new devices to usbvision.h WinTV USB Model 602 40201 Rev B282, Hauppague WinTV USB Model 602 40201 Rev B285
+ *     - Added better compatibility for 2.6.x kernels.
+ *     - Hardware full screen scaling in grabdisplay mode.
+ *     - Better support for sysfs.  More code to follow for both video device and radio device.	Device information is located at /sys/class/video4linux/video0
+ *     - Added module_param so loaded module parameters are displayed in sysfs.  Driver parameters should show up in /sys/module/usbvision
+ *     - Adjusted the SAA7111 registers to match the 2.6.x kernel SAA7111 code. Thanks to the person which helped test.
+ *     - Changed to wait_event_interruptible. For all the people running Fedora 2.
+ *     - Added some screenshots of actual video captures on sourceforge.net.
+ *
+ * November 24, 2004 - 0.9.8.1cvs Dwaine Garden
+ *     - Added patch to check for palette and format in VIDIOCSPICT.  Helix Producer should work fine with the driver now.  Thanks Jason Simpson
+ *     - Two device description changes and two additions for the maintainer of usb.ids.
+ *
+ * December 2, 2004 - 0.9.8.1cvs Dwaine Garden
+ *     - Added patch for YUV420P and YUV422P video output.  Thanks to Alex Smith.
+ *     - Better support for mythtv.
+ *
+ * January 2, 2005 - 0.9.8.1cvs Dwaine Garden
+ *     - Setup that you can specify which device is used for video.  Default is auto detect next available device number eg.  /dev/videoX  
+ *     - Setup that you can specify which device is used for radio.  Default is auto detect next available device number eg.  /dev/radioX
+ *     - usb_unlink_urb() is deprecated for synchronous unlinks.  Using usb_kill_urb instead.
+ *     - usbvision_kvirt_to_pa is deprecated.  Removed.
+ *     - Changes are related to kernel changes for 2.6.10. (Fedora 4)
+ *
+ * February 2, 2005 - 0.9.8.1cvs Dwaine Garden
+ *     - Added a new device to usbvision.h Dazzle DVC 50.  Thanks to Luiz S.
+ *
+ * March 29, 2005 - 0.9.8.1cvs Dwaine Garden
+ *     - Fixed compile error with saa7113 under kernels 2.6.11+
+ *     - Added module parameter to help people with Black and White output with using s-video input.  Some cables and input device are wired differently.
+ *     - Removed the .id from the i2c usbvision template.  There was a change to the i2c with kernels 2.6.11+.
+ *
+ * April 9, 2005 - 0.9.8.1cvs Dwaine Garden
+ *     - Added in the 2.4 and 2.6 readme files the SwitchSVideoInput parameter information.  This will help people setup the right values for the parameter.
+ *       If your device experiences Black and White images with the S-Video Input.  Set this parameter to 1 when loading the module.
+ *     - Replaced the wrong 2.6 readme file.  I lost the right version.  Someone sent me the right version by e-mail.  Thanks.
+ *     - Released new module version on sourceforge.net.  So everyone can enjoy all the fixes and additional device support.
+ *
+ * April 20, 2005 - 0.9.8.2cvs Dwaine Garden
+ *     - Release lock in usbvision_v4l_read_done.  -Thanks to nplanel for the patch.
+ *     - Additional comments to the driver.
+ *     - Fixed some spelling mistakes.  8*)	
+ *
+ * April 23, 2005 - 0.9.8.2cvs Joerg Heckenbach
+ *     - Found bug in usbvision line counting. Now there should be no spurious lines in the image any longer.
+ *     - Swapped usbvision_register_video and usbvision_configure_video to fix problem with PowerOnAtOpen=0. 
+ *       Thanks to Erwan Velu
+ *
+ * April 26, 2005 - 0.9.8.2cvs Joerg Heckenbach
+ *     - Fixed problem with rmmod module and oppses. Replaced vfree(usbvision->overlay_base) with iounmap(usbvision->overlay_base).
+ *     - Added function usb_get_dev(dev) and ; To help with unloading the module multiple times without crashing. 
+ *       (Keep the reference count in kobjects correct)
+ *
+ * June 14, 2005 - 0.9.8.2cvs Dwaine
+ *     - Missed a change in saa7113.c for checking kernel version.  Added conditional if's.    
+ *
+ * June 15, 2005 - 0.9.8.2cvs Dwaine
+ *     - Added new device WinTV device VendorId 0573 and ProductId 4d29.    
+ *     - Hacked some support for newer NT1005 devices.  This devices only seem to have one configuration, not multiple configurations like the NT1004.
+ *
+ * June 29, 2005 - 0.9.8.2cvs Dwaine
+ *     - Added new device WinTV device VendorId 0573 and ProductId 4d37.   
+ *     - Because of the first empty entry in usbvision_table, modutils failed to create the necessary entries for modules.usbmap. 
+ *       This means hotplug won't work for usbvision.  Thanks to Gary Ng.  
+ *     - Sent an e-mail to the maintainer of usb.ids.  New devices identified need to be added.
+ *     - Fixed compile error with saa7113 under kernel 2.6.12.	
+ *
+ * July 6, 2005 - 0.9.8.2cvs Dwaine
+ *     - Patch submitted by Gary Ng for two additional procfs entries.  Device Input and Frequency setting.  
+ *
+ * July 12, 2005 - 0.9.8.2cvs Dwaine
+ *     - New tuner identified for some devices it's called TCL_MFPE05.  This tuner uses the same API as tuner 38 in tuner.c.
+ *     - Thanks to lynx31 for contacting Hauppage and asking them.
+ *     - I have no clue as to which devices use this new tuner, so people will have to contact me and tell me.  
+ *
+ * July 21, 2005 - 0.9.8.2cvs Dwaine
+ *     - Patched usbvision.c with missing ifdef kernversion statement so the module will compile with older kernels and v4l.
+ *     - Thanks to cipe007......
+ *
+ * May 19, 2006 - 0.9.8.3cvs Dwaine
+ *     - Patched usbvision.c and i2c-algo.c so they will compile with kernel 2.6.16
+ *     - Adjust device "Pinnacle Studio PCTV USB (PAL) FM" values in usbvision.h
+ *
+ * May 24, 2006 - 0.9.8.3cvs Dwaine
+ *     -Pinnacle Studio PCTV USB (NTSC) FM uses saa7111, not saa7113 like first thought.
+ *     -Updated usbvision.h
+ *
+ * Aug 15, 2006 - 0.9.8.3cvs Dwaine
+ *     -Added saa711x module into cvs, since the newer saa7115 module in newer kernels is v4l2.  The usbvision driver is only v4l.
+ *     -Updated makefile to put compiled modules into correct location.
+ *
+ * Aug 21, 2006 - 0.9.8.3cvs Dwaine
+ *     -Changed number of bytes for i2c write to 4 as per the NT100X spec sheet.  Thanks to Merlum for finding it.
+ *     -Remove the radio option for device Hauppauge WinTV USB device Model 40219 Rev E189.  This device does not have a FM radio.  Thanks to Shadwell.
+ *     -Added radio option for device Hauppauge WinTV USB device Model 40219 Rev E189 again.  Just got an e-mail indicating their device has one.  8*)
+ *   
+ * Aug 27, 2006 - 0.9.8.3cvs Dwaine
+ *     -Changed ifdef statement so the usbvision driver will compile with kernels at 2.6.12.
+ *     -Updated readme files for new updated tuner list for v4l devices.
+ *      
+ *
+ *
+ * TODO:
+ *     - use submit_urb for all setup packets
+ *     - Fix memory settings for nt1004. It is 4 times as big as the
+ *       nt1003 memory.
+ *     - Add audio on endpoint 3 for nt1004 chip.  Seems impossible, needs a codec interface.  Which one?
+ *     - Clean up the driver.
+ *     - optimization for performance.
+ *     - Add Videotext capability (VBI).  Working on it.....
+ *     - Check audio for other devices
+ *     - Add v4l2 interface
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/utsname.h>
+#include <linux/highmem.h>
+#include <linux/smp_lock.h>
+#include <linux/videodev.h>
+#include <linux/vmalloc.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/usb.h>
+#include <asm/io.h>
+#include <linux/videodev2.h>
+#include <linux/video_decoder.h>
+#include <linux/i2c.h>
+#include "usbvision-i2c.h"
+
+#define USBVISION_DRIVER_VERSION_MAJOR 0
+#define USBVISION_DRIVER_VERSION_MINOR 8
+#define USBVISION_DRIVER_VERSION_PATCHLEVEL 0
+
+#define USBVISION_VERSION __stringify(USBVISION_DRIVER_VERSION_MAJOR) "." __stringify(USBVISION_DRIVER_VERSION_MINOR) "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL) " " USBVISION_DRIVER_VERSION_COMMENT
+#define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,USBVISION_DRIVER_VERSION_MINOR,USBVISION_DRIVER_VERSION_PATCHLEVEL)
+
+#include <media/saa7115.h> 
+#include <media/v4l2-common.h> 
+#include <media/tuner.h>
+#include <media/audiochip.h>
+
+	#include <linux/moduleparam.h>
+	#include <linux/workqueue.h>
+
+#ifdef CONFIG_KMOD
+#include <linux/kmod.h>
+#endif
+
+#include "usbvision.h"
+#include "usbvision_ioctl.h"
+
+
+#define DRIVER_VERSION "0.9.8.3cvs for Linux kernels 2.4.19-2.4.32 + 2.6.0-2.6.17, compiled at "__DATE__", "__TIME__
+#define EMAIL "joerg@heckenbach-aw.de"
+#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>, Dwaine Garden <DwaineGarden@rogers.com>"
+#define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
+#define DRIVER_LICENSE "GPL"
+#define DRIVER_ALIAS "USBVision"
+
+#define	ENABLE_HEXDUMP	0	/* Enable if you need it */
+
+
+#define USBVISION_DEBUG		/* Turn on debug messages */
+
+#ifdef USBVISION_DEBUG
+	#define PDEBUG(level, fmt, args...) \
+		if (debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args)
+#else
+	#define PDEBUG(level, fmt, args...) do {} while(0)
+#endif
+
+#define DBG_IOCTL	1<<3
+#define DBG_IO		1<<4
+#define DBG_RIO		1<<5
+#define DBG_HEADER	1<<7
+#define DBG_PROBE	1<<8
+#define DBG_IRQ		1<<9
+#define DBG_ISOC	1<<10
+#define DBG_PARSE	1<<11
+#define DBG_SCRATCH	1<<12
+#define DBG_FUNC	1<<13
+#define DBG_I2C		1<<14
+
+#define DEBUG(x...) 								/* General Debug */
+#define IODEBUG(x...)								/* Debug IO */
+#define OVDEBUG(x...) 								/* Debug overlay */
+#define MDEBUG(x...)								/* Debug memory management */
+
+//String operations
+#define rmspace(str)	while(*str==' ') str++;
+#define goto2next(str)	while(*str!=' ') str++; while(*str==' ') str++;
+
+
+static int usbvision_nr = 0;			// sequential number of usbvision device
+
+
+static const int max_imgwidth = MAX_FRAME_WIDTH;
+static const int max_imgheight = MAX_FRAME_HEIGHT;
+static const int min_imgwidth = MIN_FRAME_WIDTH;
+static const int min_imgheight = MIN_FRAME_HEIGHT;
+
+#define FRAMERATE_MIN	0
+#define FRAMERATE_MAX	31
+
+
+enum {
+	ISOC_MODE_YUV422 = 0x03,
+	ISOC_MODE_YUV420 = 0x14,
+	ISOC_MODE_COMPRESS = 0x60,
+};
+
+/*
+ * The value of 'scratch_buf_size' affects quality of the picture
+ * in many ways. Shorter buffers may cause loss of data when client
+ * is too slow. Larger buffers are memory-consuming and take longer
+ * to work with. This setting can be adjusted, but the default value
+ * should be OK for most desktop users.
+ */
+#define DEFAULT_SCRATCH_BUF_SIZE	(0x20000)		// 128kB memory scratch buffer
+static const int scratch_buf_size = DEFAULT_SCRATCH_BUF_SIZE;
+
+static int init_brightness = 128;	// Initalize the brightness of the video device
+static int init_contrast = 192;		// Initalize the contrast of the video device
+static int init_saturation = 128;	// Initalize the staturation mode of the video device
+static int init_hue = 128;		// Initalize the Hue settings of the video device
+
+// Function prototypes
+static int usbvision_restart_isoc(struct usb_usbvision *usbvision);
+static int usbvision_begin_streaming(struct usb_usbvision *usbvision);
+static int usbvision_muxsel(struct usb_usbvision *usbvision, int channel, int norm);
+static int usbvision_i2c_write(void *data, unsigned char addr, char *buf, short len);
+static int usbvision_i2c_read(void *data, unsigned char addr, char *buf, short len);
+static int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg);
+static int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg, unsigned char value);
+static int usbvision_request_intra (struct usb_usbvision *usbvision);
+static int usbvision_unrequest_intra (struct usb_usbvision *usbvision);
+static int usbvision_adjust_compression (struct usb_usbvision *usbvision);
+static int usbvision_measure_bandwidth (struct usb_usbvision *usbvision);
+static void usbvision_release(struct usb_usbvision *usbvision);
+static int usbvision_set_input(struct usb_usbvision *usbvision); 
+static int usbvision_set_output(struct usb_usbvision *usbvision, int width, int height); 
+static void call_i2c_clients(struct usb_usbvision *usbvision, unsigned int cmd, void *arg); 
+
+
+// Bit flags (options)
+#define FLAGS_RETRY_VIDIOCSYNC		(1 << 0)
+#define	FLAGS_MONOCHROME		(1 << 1)
+#define FLAGS_DISPLAY_HINTS		(1 << 2)
+#define FLAGS_OSD_STATS			(1 << 3)
+#define FLAGS_FORCE_TESTPATTERN		(1 << 4)
+#define FLAGS_SEPARATE_FRAMES		(1 << 5)
+#define FLAGS_CLEAN_FRAMES		(1 << 6)
+
+// Default initalization of device driver parameters
+static int flags = 0;					// Set the default Overlay Display mode of the device driver
+static int debug = 0;					// Set the default Debug Mode of the device driver
+static int isocMode = ISOC_MODE_COMPRESS;		// Set the default format for ISOC endpoint
+static int adjustCompression = 1;			// Set the compression to be adaptive
+static int dga = 1;					// Set the default Direct Graphic Access
+static int PowerOnAtOpen = 1;				// Set the default device to power on at startup
+static int SwitchSVideoInput = 0;			// To help people with Black and White output with using s-video input.  Some cables and input device are wired differently.
+static int video_nr = -1;			        // Sequential Number of Video Device
+static int radio_nr = -1;			        // Sequential Number of Radio Device
+static int vbi_nr = -1;					// Sequential Number of VBI Device
+static char *CustomDevice=NULL;				// Set as nothing....
+
+// Grab parameters for the device driver
+
+#if defined(module_param)                               // Showing parameters under SYSFS
+module_param(flags, int, 0444);
+module_param(debug, int, 0444);
+module_param(isocMode, int, 0444);
+module_param(adjustCompression, int, 0444);
+module_param(dga, int, 0444);
+module_param(PowerOnAtOpen, int, 0444);
+module_param(SwitchSVideoInput, int, 0444);
+module_param(video_nr, int, 0444);
+module_param(radio_nr, int, 0444);
+module_param(vbi_nr, int, 0444);
+module_param(CustomDevice, charp, 0444);
+#else							// Old Style
+MODULE_PARM(flags, "i");				// Grab the Overlay Display mode of the device driver
+MODULE_PARM(debug, "i");				// Grab the Debug Mode of the device driver
+MODULE_PARM(isocMode, "i");				// Grab the video format of the video device
+MODULE_PARM(adjustCompression, "i");			// Grab the compression to be adaptive
+MODULE_PARM(dga, "i");					// Grab the Direct Graphic Access
+MODULE_PARM(PowerOnAtOpen, "i");			// Grab the device to power on at startup
+MODULE_PARM(SwitchSVideoInput, "i");			// To help people with Black and White output with using s-video input.  Some cables and input device are wired differently.
+MODULE_PARM(video_nr, "i");				// video_nr option allows to specify a certain /dev/videoX device (like /dev/video0 or /dev/video1 ...)                 
+MODULE_PARM(radio_nr, "i");				// radio_nr option allows to specify a certain /dev/radioX device (like /dev/radio0 or /dev/radio1 ...)
+MODULE_PARM(vbi_nr, "i");				// vbi_nr option allows to specify a certain /dev/vbiX device (like /dev/vbi0 or /dev/vbi1 ...)
+MODULE_PARM(CustomDevice, "s");			        // .... CustomDevice
+#endif
+
+MODULE_PARM_DESC(flags,	" Set the default Overlay Display mode of the device driver.  Default: 0 (Off)");
+MODULE_PARM_DESC(debug, " Set the default Debug Mode of the device driver.  Default: 0 (Off)");
+MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint.  Default: 0x60 (Compression On)");
+MODULE_PARM_DESC(adjustCompression, " Set the ADPCM compression for the device.  Default: 1 (On)");
+MODULE_PARM_DESC(dga, " Set the Direct Graphic Access for the device.  Default: 1 (On)");
+MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened.  Default: 1 (On)");
+MODULE_PARM_DESC(SwitchSVideoInput, " Set the S-Video input.  Some cables and input device are wired differently. Default: 0 (Off)");
+MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX).  Default: -1 (autodetect)");
+MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX).  Default: -1 (autodetect)");
+MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX).  Default: -1 (autodetect)");
+MODULE_PARM_DESC(CustomDevice, " Define the fine tuning parameters for the device.  Default: null");
+
+
+// Misc stuff
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
+	MODULE_VERSION(DRIVER_VERSION);
+	MODULE_ALIAS(DRIVER_ALIAS); 
+
+#ifdef MODULE
+static unsigned int autoload = 1;
+#else
+static unsigned int autoload = 0;
+#endif
+
+
+/****************************************************************************************/
+/* SYSFS Code - Copied from the stv680.c usb module.		                        */
+/* Device information is located at /sys/class/video4linux/video0	                */
+/* Device parameters information is located at /sys/module/usbvision                    */
+/* Device USB Information is located at /sys/bus/usb/drivers/USBVision Video Grabber    */
+/****************************************************************************************/
+
+
+#define YES_NO(x) ((x) ? "Yes" : "No")
+
+static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd)
+{
+	struct video_device *vdev = to_video_device(cd);
+	return video_get_drvdata(vdev);
+}
+
+static ssize_t show_version(struct class_device *cd, char *buf)
+{
+	return sprintf(buf, "%s\n", DRIVER_VERSION);
+} 
+static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
+
+static ssize_t show_model(struct class_device *class_dev, char *buf)
+{
+	struct video_device *vdev = to_video_device(class_dev);	
+	struct usb_usbvision *usbvision = video_get_drvdata(vdev);	
+	return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString);
+} 
+static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
+
+static ssize_t show_hue(struct class_device *class_dev, char *buf)
+{
+	struct video_device *vdev = to_video_device(class_dev);	
+	struct usb_usbvision *usbvision = video_get_drvdata(vdev);	
+	return sprintf(buf, "%d\n", usbvision->hue >> 8);
+} 
+static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
+
+static ssize_t show_contrast(struct class_device *class_dev, char *buf)
+{
+	struct video_device *vdev = to_video_device(class_dev);	
+	struct usb_usbvision *usbvision = video_get_drvdata(vdev);	
+	return sprintf(buf, "%d\n", usbvision->contrast >> 8);
+} 
+static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
+
+static ssize_t show_brightness(struct class_device *class_dev, char *buf)
+{
+	struct video_device *vdev = to_video_device(class_dev);	
+	struct usb_usbvision *usbvision = video_get_drvdata(vdev);	
+	return sprintf(buf, "%d\n", usbvision->brightness >> 8);
+} 
+static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
+
+static ssize_t show_saturation(struct class_device *class_dev, char *buf)
+{
+	struct video_device *vdev = to_video_device(class_dev);	
+	struct usb_usbvision *usbvision = video_get_drvdata(vdev);	
+	return sprintf(buf, "%d\n", usbvision->saturation >> 8);
+} 
+static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
+
+static ssize_t show_streaming(struct class_device *class_dev, char *buf)
+{
+	struct video_device *vdev = to_video_device(class_dev);	
+	struct usb_usbvision *usbvision = video_get_drvdata(vdev);	
+	return sprintf(buf, "%s\n", YES_NO(usbvision->streaming));
+} 
+static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
+
+static ssize_t show_overlay(struct class_device *class_dev, char *buf)
+{
+	struct video_device *vdev = to_video_device(class_dev);	
+	struct usb_usbvision *usbvision = video_get_drvdata(vdev);	
+	return sprintf(buf, "%s\n", YES_NO(usbvision->overlay));
+} 
+static CLASS_DEVICE_ATTR(overlay, S_IRUGO, show_overlay, NULL);
+
+static ssize_t show_compression(struct class_device *class_dev, char *buf)
+{
+	struct video_device *vdev = to_video_device(class_dev);	
+	struct usb_usbvision *usbvision = video_get_drvdata(vdev);	
+	return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
+} 
+static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
+
+static ssize_t show_device_bridge(struct class_device *class_dev, char *buf)
+{
+	struct video_device *vdev = to_video_device(class_dev);	
+	struct usb_usbvision *usbvision = video_get_drvdata(vdev);	
+	return sprintf(buf, "%d\n", usbvision->bridgeType);
+} 
+static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
+
+static void usbvision_create_sysfs(struct video_device *vdev)
+{
+	if (vdev) {
+		video_device_create_file(vdev, &class_device_attr_version);
+		video_device_create_file(vdev, &class_device_attr_model);
+		video_device_create_file(vdev, &class_device_attr_hue);
+		video_device_create_file(vdev, &class_device_attr_contrast);
+		video_device_create_file(vdev, &class_device_attr_brightness);
+		video_device_create_file(vdev, &class_device_attr_saturation);
+		video_device_create_file(vdev, &class_device_attr_streaming);
+		video_device_create_file(vdev, &class_device_attr_overlay);
+		video_device_create_file(vdev, &class_device_attr_compression);
+		video_device_create_file(vdev, &class_device_attr_bridge);
+	}
+}
+
+static void usbvision_remove_sysfs(struct video_device *vdev)
+{
+	if (vdev) {
+		video_device_remove_file(vdev, &class_device_attr_version);
+		video_device_remove_file(vdev, &class_device_attr_model);
+		video_device_remove_file(vdev, &class_device_attr_hue);
+		video_device_remove_file(vdev, &class_device_attr_contrast);
+		video_device_remove_file(vdev, &class_device_attr_brightness);
+		video_device_remove_file(vdev, &class_device_attr_saturation);
+		video_device_remove_file(vdev, &class_device_attr_streaming);
+		video_device_remove_file(vdev, &class_device_attr_overlay);
+		video_device_remove_file(vdev, &class_device_attr_compression);
+		video_device_remove_file(vdev, &class_device_attr_bridge);
+	}
+}
+
+
+/*******************************/
+/* Memory management functions */
+/*******************************/
+
+/*
+ * Here we want the physical address of the memory.
+ * This is used when initializing the contents of the area.
+ */
+
+
+void *usbvision_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) {
+  #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+   mem_map_reserve(vmalloc_to_page((void *)adr));
+  #else
+   SetPageReserved(vmalloc_to_page((void *)adr));
+  #endif
+  adr += PAGE_SIZE;
+  size -= PAGE_SIZE;
+ }
+
+ return mem;
+}
+
+void usbvision_rvfree(void *mem, unsigned long size)
+{
+ unsigned long adr;
+
+ if (!mem)
+  return;
+
+ adr = (unsigned long) mem;
+ while ((long) size > 0) {
+  #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+   mem_map_unreserve(vmalloc_to_page((void *)adr));
+  #else
+   ClearPageReserved(vmalloc_to_page((void *)adr));
+  #endif
+  adr += PAGE_SIZE;
+  size -= PAGE_SIZE;
+ }
+ vfree(mem);
+}
+
+
+
+
+
+
+#if ENABLE_HEXDUMP
+static void usbvision_hexdump(const unsigned char *data, int len)
+{
+ char tmp[80];
+ int i, k;
+
+ for (i = k = 0; len > 0; i++, len--) {
+  if (i > 0 && (i % 16 == 0)) {
+   printk("%s\n", tmp);
+   k = 0;
+  }
+  k += sprintf(&tmp[k], "%02x ", data[i]);
+ }
+ if (k > 0)
+  printk("%s\n", tmp);
+}
+#endif
+
+
+/* These procedures handle the scratch ring buffer */
+int scratch_len(struct usb_usbvision *usbvision)    /*This returns the amount of data actually in the buffer */
+{
+	int len = usbvision->scratch_write_ptr - usbvision->scratch_read_ptr;
+	if (len < 0) {
+		len += scratch_buf_size;
+	}
+	PDEBUG(DBG_SCRATCH, "scratch_len() = %d\n", len);
+
+	return len;
+}
+
+
+/* This returns the free space left in the buffer */
+int scratch_free(struct usb_usbvision *usbvision)
+