Commit 781aa1d1 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files

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: default avatarJoerg Heckenbach <joerg@heckenbach-aw.de>
Signed-off-by: default avatarDwaine Garden <dwainegarden@rogers.com>
Signed-off-by: default avatarThierry Merle <thierry.merle@free.fr>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 2a893dea
......@@ -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"
......
......@@ -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
......
usbvision-objs := usbvision-core.o usbvision-i2c.o
obj-$(CONFIG_VIDEO_USBVISION) += usbvision.o
EXTRA_CFLAGS += -Idrivers/media/video
/*
* 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);