--- /dev/null
+/*
+ * 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)
+{
+ int free = usbvision->scratch_read_ptr - usbvision->scratch_write_ptr;
+ if (free <= 0) {
+ free += scratch_buf_size;
+ }
+ if (free) {
+ free -= 1; /* at least one byte in the buffer must */
+ /* left blank, otherwise there is no chance to differ between full and empty */
+ }
+ PDEBUG(DBG_SCRATCH, "return %d\n", free);
+
+ return free;
+}
+
+
+void *debug_memcpy(void *dest, void *src, size_t len)
+{
+ printk(KERN_DEBUG "memcpy(%p, %p, %d);\n", dest, src, len);
+ return memcpy(dest, src, len);
+}
+
+
+/* This puts data into the buffer */
+int scratch_put(struct usb_usbvision *usbvision, unsigned char *data, int len)
+{
+ int len_part;
+
+ if (usbvision->scratch_write_ptr + len < scratch_buf_size) {
+ memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len);
+ usbvision->scratch_write_ptr += len;
+ }
+ else {
+ len_part = scratch_buf_size - usbvision->scratch_write_ptr;
+ memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len_part);
+ if (len == len_part) {
+ usbvision->scratch_write_ptr = 0; /* just set write_ptr to zero */
+ }
+ else {
+ memcpy(usbvision->scratch, data + len_part, len - len_part);
+ usbvision->scratch_write_ptr = len - len_part;
+ }
+ }
+
+ PDEBUG(DBG_SCRATCH, "len=%d, new write_ptr=%d\n", len, usbvision->scratch_write_ptr);
+
+ return len;
+}
+
+/* This marks the write_ptr as position of new frame header */
+void scratch_mark_header(struct usb_usbvision *usbvision)
+{
+ PDEBUG(DBG_SCRATCH, "header at write_ptr=%d\n", usbvision->scratch_headermarker_write_ptr);
+
+ usbvision->scratch_headermarker[usbvision->scratch_headermarker_write_ptr] =
+ usbvision->scratch_write_ptr;
+ usbvision->scratch_headermarker_write_ptr += 1;
+ usbvision->scratch_headermarker_write_ptr %= USBVISION_NUM_HEADERMARKER;
+}
+
+/* This gets data from the buffer at the given "ptr" position */
+int scratch_get_extra(struct usb_usbvision *usbvision, unsigned char *data, int *ptr, int len)
+{
+ int len_part;
+ if (*ptr + len < scratch_buf_size) {
+ memcpy(data, usbvision->scratch + *ptr, len);
+ *ptr += len;
+ }
+ else {
+ len_part = scratch_buf_size - *ptr;
+ memcpy(data, usbvision->scratch + *ptr, len_part);
+ if (len == len_part) {
+ *ptr = 0; /* just set the y_ptr to zero */
+ }
+ else {
+ memcpy(data + len_part, usbvision->scratch, len - len_part);
+ *ptr = len - len_part;
+ }
+ }
+
+ PDEBUG(DBG_SCRATCH, "len=%d, new ptr=%d\n", len, *ptr);
+
+ return len;
+}
+
+
+/* This sets the scratch extra read pointer */
+void scratch_set_extra_ptr(struct usb_usbvision *usbvision, int *ptr, int len)
+{
+ *ptr = (usbvision->scratch_read_ptr + len)%scratch_buf_size;
+
+ PDEBUG(DBG_SCRATCH, "ptr=%d\n", *ptr);
+}
+
+
+/*This increments the scratch extra read pointer */
+void scratch_inc_extra_ptr(int *ptr, int len)
+{
+ *ptr = (*ptr + len) % scratch_buf_size;
+
+ PDEBUG(DBG_SCRATCH, "ptr=%d\n", *ptr);
+}
+
+
+/* This gets data from the buffer */
+int scratch_get(struct usb_usbvision *usbvision, unsigned char *data, int len)
+{
+ int len_part;
+ if (usbvision->scratch_read_ptr + len < scratch_buf_size) {
+ memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len);
+ usbvision->scratch_read_ptr += len;
+ }
+ else {
+ len_part = scratch_buf_size - usbvision->scratch_read_ptr;
+ memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len_part);
+ if (len == len_part) {
+ usbvision->scratch_read_ptr = 0; /* just set the read_ptr to zero */
+ }
+ else {
+ memcpy(data + len_part, usbvision->scratch, len - len_part);
+ usbvision->scratch_read_ptr = len - len_part;
+ }
+ }
+
+ PDEBUG(DBG_SCRATCH, "len=%d, new read_ptr=%d\n", len, usbvision->scratch_read_ptr);
+
+ return len;
+}
+
+
+/* This sets read pointer to next header and returns it */
+int scratch_get_header(struct usb_usbvision *usbvision,struct usbvision_frame_header *header)
+{
+ int errCode = 0;
+
+ PDEBUG(DBG_SCRATCH, "from read_ptr=%d", usbvision->scratch_headermarker_read_ptr);
+
+ while (usbvision->scratch_headermarker_write_ptr -
+ usbvision->scratch_headermarker_read_ptr != 0) {
+ usbvision->scratch_read_ptr =
+ usbvision->scratch_headermarker[usbvision->scratch_headermarker_read_ptr];
+ usbvision->scratch_headermarker_read_ptr += 1;
+ usbvision->scratch_headermarker_read_ptr %= USBVISION_NUM_HEADERMARKER;
+ scratch_get(usbvision, (unsigned char *)header, USBVISION_HEADER_LENGTH);
+ if ((header->magic_1 == USBVISION_MAGIC_1)
+ && (header->magic_2 == USBVISION_MAGIC_2)
+ && (header->headerLength == USBVISION_HEADER_LENGTH)) {
+ errCode = USBVISION_HEADER_LENGTH;
+ header->frameWidth = header->frameWidthLo + (header->frameWidthHi << 8);
+ header->frameHeight = header->frameHeightLo + (header->frameHeightHi << 8);
+ break;
+ }
+ }
+
+ return errCode;
+}
+
+
+/*This removes len bytes of old data from the buffer */
+void scratch_rm_old(struct usb_usbvision *usbvision, int len)
+{
+
+ usbvision->scratch_read_ptr += len;
+ usbvision->scratch_read_ptr %= scratch_buf_size;
+ PDEBUG(DBG_SCRATCH, "read_ptr is now %d\n", usbvision->scratch_read_ptr);
+}
+
+
+/*This resets the buffer - kills all data in it too */
+void scratch_reset(struct usb_usbvision *usbvision)
+{
+ PDEBUG(DBG_SCRATCH, "\n");
+
+ usbvision->scratch_read_ptr = 0;
+ usbvision->scratch_write_ptr = 0;
+ usbvision->scratch_headermarker_read_ptr = 0;
+ usbvision->scratch_headermarker_write_ptr = 0;
+ usbvision->isocstate = IsocState_NoFrame;
+}
+
+
+
+/* Here comes the OVERLAY stuff */
+
+/* Tell the interrupt handler what to to. */
+static
+void usbvision_cap(struct usb_usbvision* usbvision, int on)
+{
+ DEBUG(printk(KERN_DEBUG "usbvision_cap: overlay was %d, set it to %d\n", usbvision->overlay, on);)
+
+ if (on) {
+ usbvision->overlay = 1;
+ }
+ else {
+ usbvision->overlay = 0;
+ }
+}
+
+
+
+
+/* append a new clipregion to the vector of video_clips */
+static
+void usbvision_new_clip(struct v4l2_format* vf, struct v4l2_clip* vcp, int x, int y, int w, int h)
+{
+ vcp[vf->fmt.win.clipcount].c.left = x;
+ vcp[vf->fmt.win.clipcount].c.top = y;
+ vcp[vf->fmt.win.clipcount].c.width = w;
+ vcp[vf->fmt.win.clipcount].c.height = h;
+ vf->fmt.win.clipcount++;
+}
+
+
+#define mark_pixel(x,y) usbvision->clipmask[((x) + (y) * MAX_FRAME_WIDTH)/32] |= 0x00000001<<((x)%32)
+#define clipped_pixel(index) usbvision->clipmask[(index)/32] & (0x00000001<<((index)%32))
+
+static
+void usbvision_built_overlay(struct usb_usbvision* usbvision, int count, struct v4l2_clip *vcp)
+{
+ usbvision->overlay_win = usbvision->overlay_base +
+ (signed int)usbvision->vid_win.fmt.win.w.left * usbvision->depth / 8 +
+ (signed int)usbvision->vid_win.fmt.win.w.top * usbvision->vid_buf.fmt.bytesperline;
+
+ IODEBUG(printk(KERN_DEBUG "built_overlay base=%p, win=%p, bpl=%d, clips=%d, size=%dx%d\n",
+ usbvision->overlay_base, usbvision->overlay_win,
+ usbvision->vid_buf.fmt.bytesperline, count,
+ usbvision->vid_win.fmt.win.w.width, usbvision->vid_win.fmt.win.w.height);)
+
+
+ /* Add here generation of clipping mask */
+{
+ int x_start, x_end, y_start, y_end;
+ int clip_index, x, y;
+
+ memset(usbvision->clipmask, 0, USBVISION_CLIPMASK_SIZE);
+
+ OVDEBUG(printk(KERN_DEBUG "clips = %d\n", count);)
+
+ for(clip_index = 0; clip_index < count; clip_index++) {
+ OVDEBUG(printk(KERN_DEBUG "clip: %d,%d,%d,%d\n", vcp[clip_index].x,
+ vcp[clip_index].y,
+ vcp[clip_index].width,
+ vcp[clip_index].height);)
+
+ x_start = vcp[clip_index].c.left;
+ if(x_start >= (int)usbvision->vid_win.fmt.win.w.width) {
+ OVDEBUG(printk(KERN_DEBUG "x_start=%d\n", x_start);)
+ continue; //clipping window is right of overlay window
+ }
+ x_end = x_start + vcp[clip_index].c.width;
+ if(x_end <= 0) {
+ OVDEBUG(printk(KERN_DEBUG "x_end=%d\n", x_end);)
+ continue; //clipping window is left of overlay window
+ }
+
+ y_start = vcp[clip_index].c.top;
+ if(y_start >= (int)usbvision->vid_win.fmt.win.w.height) {
+ OVDEBUG(printk(KERN_DEBUG "y_start=%d\n", y_start);)
+ continue; //clipping window is below overlay window
+ }
+ y_end = y_start + vcp[clip_index].c.height;
+ if(y_end <= 0) {
+ OVDEBUG(printk(KERN_DEBUG "y_end=%d\n", y_end);)
+ continue; //clipping window is above overlay window
+ }
+
+ //clip the clipping window
+ if (x_start < 0) {
+ x_start = 0;
+ }
+ if (x_end > (int)usbvision->vid_win.fmt.win.w.width) {
+ x_end = (int)usbvision->vid_win.fmt.win.w.width;
+ }
+ if (y_start < 0) {
+ y_start = 0;
+ }
+ if (y_end > (int)usbvision->vid_win.fmt.win.w.height) {
+ y_end = (int)usbvision->vid_win.fmt.win.w.height;
+ }
+
+ OVDEBUG(printk(KERN_DEBUG "clip_o: %d,%d,%d,%d\n", x_start, y_start, x_end, y_end);)
+
+
+
+ for(y = y_start; y < y_end; y++) {
+ for(x = x_start; x < x_end; x++) {
+ mark_pixel(x,y);
+ }
+ }
+ }
+}
+
+}
+
+
+
+void usbvision_osd_char(struct usb_usbvision *usbvision,
+ struct usbvision_frame *frame, int x, int y, int ch)
+{
+ static const unsigned short digits[16] = {
+ 0xF6DE, /* 0 */
+ 0x2492, /* 1 */
+ 0xE7CE, /* 2 */
+ 0xE79E, /* 3 */
+ 0xB792, /* 4 */
+ 0xF39E, /* 5 */
+ 0xF3DE, /* 6 */
+ 0xF492, /* 7 */
+ 0xF7DE, /* 8 */
+ 0xF79E, /* 9 */
+ 0x77DA, /* a */
+ 0xD75C, /* b */
+ 0xF24E, /* c */
+ 0xD6DC, /* d */
+ 0xF34E, /* e */
+ 0xF348 /* f */
+ };
+ unsigned short digit;
+ int ix, iy;
+
+ if ((usbvision == NULL) || (frame == NULL))
+ return;
+
+ if (ch >= '0' && ch <= '9')
+ ch -= '0';
+ else if (ch >= 'A' && ch <= 'F')
+ ch = 10 + (ch - 'A');
+ else if (ch >= 'a' && ch <= 'f')
+ ch = 10 + (ch - 'a');
+ else
+ return;
+ digit = digits[ch];
+
+ for (iy = 0; iy < 5; iy++) {
+ for (ix = 0; ix < 3; ix++) {
+ if (digit & 0x8000) {
+ // USBVISION_PUTPIXEL(frame, x + ix, y + iy,
+ // 0xFF, 0xFF, 0xFF);
+ }
+ digit = digit << 1;
+ }
+ }
+}
+
+
+void usbvision_osd_string(struct usb_usbvision *usbvision,
+ struct usbvision_frame *frame,
+ int x, int y, const char *str)
+{
+ while (*str) {
+ usbvision_osd_char(usbvision, frame, x, y, *str);
+ str++;
+ x += 4; /* 3 pixels character + 1 space */
+ }
+}
+
+/*
+ * usb_usbvision_osd_stats()
+ *
+ * On screen display of important debugging information.
+ *
+ */
+void usbvision_osd_stats(struct usb_usbvision *usbvision,
+ struct usbvision_frame *frame)
+{
+ const int y_diff = 8;
+ char tmp[16];
+ int x = 10;
+ int y = 10;
+
+ sprintf(tmp, "%8x", usbvision->frame_num);
+ usbvision_osd_string(usbvision, frame, x, y, tmp);
+ y += y_diff;
+
+ sprintf(tmp, "%8lx", usbvision->isocUrbCount);
+ usbvision_osd_string(usbvision, frame, x, y, tmp);
+ y += y_diff;
+
+ sprintf(tmp, "%8lx", usbvision->urb_length);
+ usbvision_osd_string(usbvision, frame, x, y, tmp);
+ y += y_diff;
+
+ sprintf(tmp, "%8lx", usbvision->isocDataCount);
+ usbvision_osd_string(usbvision, frame, x, y, tmp);
+ y += y_diff;
+
+ sprintf(tmp, "%8lx", usbvision->header_count);
+ usbvision_osd_string(usbvision, frame, x, y, tmp);
+ y += y_diff;
+
+ sprintf(tmp, "%8lx", usbvision->scratch_ovf_count);
+ usbvision_osd_string(usbvision, frame, x, y, tmp);
+ y += y_diff;
+
+ sprintf(tmp, "%8lx", usbvision->isocSkipCount);
+ usbvision_osd_string(usbvision, frame, x, y, tmp);
+ y += y_diff;
+
+ sprintf(tmp, "%8lx", usbvision->isocErrCount);
+ usbvision_osd_string(usbvision, frame, x, y, tmp);
+ y += y_diff;
+
+ sprintf(tmp, "%8x", usbvision->saturation);
+ usbvision_osd_string(usbvision, frame, x, y, tmp);
+ y += y_diff;
+
+ sprintf(tmp, "%8x", usbvision->hue);
+ usbvision_osd_string(usbvision, frame, x, y, tmp);
+ y += y_diff;
+
+ sprintf(tmp, "%8x", usbvision->brightness >> 8);
+ usbvision_osd_string(usbvision, frame, x, y, tmp);
+ y += y_diff;
+
+ sprintf(tmp, "%8x", usbvision->contrast >> 12);
+ usbvision_osd_string(usbvision, frame, x, y, tmp);
+ y += y_diff;
+
+}
+
+/*
+ * usbvision_testpattern()
+ *
+ * Procedure forms a test pattern (yellow grid on blue background).
+ *
+ * Parameters:
+ * fullframe: if TRUE then entire frame is filled, otherwise the procedure
+ * continues from the current scanline.
+ * pmode 0: fill the frame with solid blue color (like on VCR or TV)
+ * 1: Draw a colored grid
+ *
+ */
+void usbvision_testpattern(struct usb_usbvision *usbvision, int fullframe,
+ int pmode)
+{
+ static const char proc[] = "usbvision_testpattern";
+ struct usbvision_frame *frame;
+ unsigned char *f;
+ int num_cell = 0;
+ int scan_length = 0;
+ static int num_pass = 0;
+
+ if (usbvision == NULL) {
+ printk(KERN_ERR "%s: usbvision == NULL\n", proc);
+ return;
+ }
+ if ((usbvision->curFrameNum < 0)
+ || (usbvision->curFrameNum >= USBVISION_NUMFRAMES)) {
+ printk(KERN_ERR "%s: usbvision->curFrameNum=%d.\n", proc,
+ usbvision->curFrameNum);
+ return;
+ }
+
+ /* Grab the current frame */
+ frame = &usbvision->frame[usbvision->curFrameNum];
+
+ /* Optionally start at the beginning */
+ if (fullframe) {
+ frame->curline = 0;
+ frame->scanlength = 0;
+ }
+
+ /* Form every scan line */
+ for (; frame->curline < frame->frmheight; frame->curline++) {
+ int i;
+
+ f = frame->data + (usbvision->curwidth * 3 * frame->curline);
+ for (i = 0; i < usbvision->curwidth; i++) {
+ unsigned char cb = 0x80;
+ unsigned char cg = 0;
+ unsigned char cr = 0;
+
+ if (pmode == 1) {
+ if (frame->curline % 32 == 0)
+ cb = 0, cg = cr = 0xFF;
+ else if (i % 32 == 0) {
+ if (frame->curline % 32 == 1)
+ num_cell++;
+ cb = 0, cg = cr = 0xFF;
+ } else {
+ cb =
+ ((num_cell * 7) +
+ num_pass) & 0xFF;
+ cg =
+ ((num_cell * 5) +
+ num_pass * 2) & 0xFF;
+ cr =
+ ((num_cell * 3) +
+ num_pass * 3) & 0xFF;
+ }
+ } else {
+ /* Just the blue screen */
+ }
+
+ *f++ = cb;
+ *f++ = cg;
+ *f++ = cr;
+ scan_length += 3;
+ }
+ }
+
+ frame->grabstate = FrameState_Done;
+ frame->scanlength += scan_length;
+ ++num_pass;
+
+ /* We do this unconditionally, regardless of FLAGS_OSD_STATS */
+ usbvision_osd_stats(usbvision, frame);
+}
+
+/*
+ * Here comes the data parsing stuff that is run as interrupt
+ */
+
+/*
+ * usbvision_find_header()
+ *
+ * Locate one of supported header markers in the scratch buffer.
+ */
+static enum ParseState usbvision_find_header(struct usb_usbvision *usbvision)
+{
+ struct usbvision_frame *frame;
+ int foundHeader = 0;
+
+ if (usbvision->overlay) {
+ frame = &usbvision->overlay_frame;
+ }
+ else {
+ frame = &usbvision->frame[usbvision->curFrameNum];
+ }
+
+ while (scratch_get_header(usbvision, &frame->isocHeader) == USBVISION_HEADER_LENGTH) {
+ // found header in scratch
+ PDEBUG(DBG_HEADER, "found header: 0x%02x%02x %d %d %d %d %#x 0x%02x %u %u",
+ frame->isocHeader.magic_2,
+ frame->isocHeader.magic_1,
+ frame->isocHeader.headerLength,
+ frame->isocHeader.frameNum,
+ frame->isocHeader.framePhase,
+ frame->isocHeader.frameLatency,
+ frame->isocHeader.dataFormat,
+ frame->isocHeader.formatParam,
+ frame->isocHeader.frameWidth,
+ frame->isocHeader.frameHeight);
+
+ if (usbvision->requestIntra) {
+ if (frame->isocHeader.formatParam & 0x80) {
+ foundHeader = 1;
+ usbvision->lastIsocFrameNum = -1; // do not check for lost frames this time
+ usbvision_unrequest_intra(usbvision);
+ break;
+ }
+ }
+ else {
+ foundHeader = 1;
+ break;
+ }
+ }
+
+ if (foundHeader) {
+ frame->frmwidth = frame->isocHeader.frameWidth * usbvision->stretch_width;
+ frame->frmheight = frame->isocHeader.frameHeight * usbvision->stretch_height;
+ frame->v4l2_linesize = (frame->frmwidth * frame->v4l2_format.depth)>> 3;
+ usbvision->curFrame = frame;
+ }
+ else { // no header found
+ PDEBUG(DBG_HEADER, "skipping scratch data, no header");
+ scratch_reset(usbvision);
+ return ParseState_EndParse;
+ }
+
+ // found header
+ if (frame->isocHeader.dataFormat==ISOC_MODE_COMPRESS) {
+ //check isocHeader.frameNum for lost frames
+ if (usbvision->lastIsocFrameNum >= 0) {
+ if (((usbvision->lastIsocFrameNum + 1) % 32) != frame->isocHeader.frameNum) {
+ // unexpected frame drop: need to request new intra frame
+ PDEBUG(DBG_HEADER, "Lost frame before %d on USB", frame->isocHeader.frameNum);
+ usbvision_request_intra(usbvision);
+ return ParseState_NextFrame;
+ }
+ }
+ usbvision->lastIsocFrameNum = frame->isocHeader.frameNum;
+ }
+ usbvision->header_count++;
+ frame->scanstate = ScanState_Lines;
+ frame->curline = 0;
+
+ if (flags & FLAGS_FORCE_TESTPATTERN) {
+ usbvision_testpattern(usbvision, 1, 1);
+ return ParseState_NextFrame;
+ }
+ return ParseState_Continue;
+}
+
+static enum ParseState usbvision_parse_lines_422(struct usb_usbvision *usbvision,
+ long *pcopylen)
+{
+ volatile struct usbvision_frame *frame;
+ unsigned char *f;
+ int len;
+ int i;
+ unsigned char yuyv[4]={180, 128, 10, 128}; // YUV components
+ unsigned char rv, gv, bv; // RGB components
+ int clipmask_index, bytes_per_pixel;
+ int overlay = usbvision->overlay;
+ int stretch_bytes, clipmask_add;
+
+ if (overlay) {
+ frame = &usbvision->overlay_frame;
+ if (usbvision->overlay_base == NULL) {
+ //video_buffer is not set yet
+ return ParseState_NextFrame;
+ }
+ f = usbvision->overlay_win + frame->curline *
+ usbvision->vid_buf.fmt.bytesperline;
+ }
+ else {
+ frame = &usbvision->frame[usbvision->curFrameNum];
+ f = frame->data + (frame->v4l2_linesize * frame->curline);
+ }
+
+ /* Make sure there's enough data for the entire line */
+ len = (frame->isocHeader.frameWidth * 2)+5;
+ if (scratch_len(usbvision) < len) {
+ PDEBUG(DBG_PARSE, "out of data in line %d, need %u.\n", frame->curline, len);
+ return ParseState_Out;
+ }
+
+ if ((frame->curline + 1) >= frame->frmheight) {
+ return ParseState_NextFrame;
+ }
+
+ bytes_per_pixel = frame->v4l2_format.bytes_per_pixel;
+ stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel;
+ clipmask_index = frame->curline * MAX_FRAME_WIDTH;
+ clipmask_add = usbvision->stretch_width;
+
+ for (i = 0; i < frame->frmwidth; i+=(2 * usbvision->stretch_width)) {
+
+ scratch_get(usbvision, &yuyv[0], 4);
+
+ if((overlay) && (clipped_pixel(clipmask_index))) {
+ f += bytes_per_pixel;
+ }
+ else if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
+ *f++ = yuyv[0]; // Y
+ *f++ = yuyv[3]; // U
+ }
+ else {
+
+ YUV_TO_RGB_BY_THE_BOOK(yuyv[0], yuyv[1], yuyv[3], rv, gv, bv);
+ switch (frame->v4l2_format.format) {
+ case V4L2_PIX_FMT_RGB565:
+ *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 3));
+ *f++ = (0x07 & (gv >> 5)) | (0xF8 & rv);
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ *f++ = bv;
+ *f++ = gv;
+ *f++ = rv;
+ break;
+ case V4L2_PIX_FMT_RGB32:
+ *f++ = bv;
+ *f++ = gv;
+ *f++ = rv;
+ f++;
+ break;
+ case V4L2_PIX_FMT_RGB555:
+ *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 2));
+ *f++ = (0x03 & (gv >> 6)) | (0x7C & (rv >> 1));
+ break;
+ }
+ }
+ clipmask_index += clipmask_add;
+ f += stretch_bytes;
+
+ if((overlay) && (clipped_pixel(clipmask_index))) {
+ f += bytes_per_pixel;
+ }
+ else if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
+ *f++ = yuyv[2]; // Y
+ *f++ = yuyv[1]; // V
+ }
+ else {
+
+ YUV_TO_RGB_BY_THE_BOOK(yuyv[2], yuyv[1], yuyv[3], rv, gv, bv);
+ switch (frame->v4l2_format.format) {
+ case V4L2_PIX_FMT_RGB565:
+ *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 3));
+ *f++ = (0x07 & (gv >> 5)) | (0xF8 & rv);
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ *f++ = bv;
+ *f++ = gv;
+ *f++ = rv;
+ break;
+ case V4L2_PIX_FMT_RGB32:
+ *f++ = bv;
+ *f++ = gv;
+ *f++ = rv;
+ f++;
+ break;
+ case V4L2_PIX_FMT_RGB555:
+ *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 2));
+ *f++ = (0x03 & (gv >> 6)) | (0x7C & (rv >> 1));
+ break;
+ }
+ }
+ clipmask_index += clipmask_add;
+ f += stretch_bytes;
+ }
+
+ frame->curline += usbvision->stretch_height;
+ *pcopylen += frame->v4l2_linesize * usbvision->stretch_height;
+
+ if (frame->curline >= frame->frmheight) {
+ return ParseState_NextFrame;
+ }
+ else {
+ return ParseState_Continue;
+ }
+}
+
+
+static int usbvision_decompress(struct usb_usbvision *usbvision,unsigned char *Compressed,
+ unsigned char *Decompressed, int *StartPos,
+ int *BlockTypeStartPos, int Len)
+{
+ int RestPixel, Idx, MaxPos, Pos, ExtraPos, BlockLen, BlockTypePos, BlockTypeLen;
+ unsigned char BlockByte, BlockCode, BlockType, BlockTypeByte, Integrator;
+
+ Integrator = 0;
+ Pos = *StartPos;
+ BlockTypePos = *BlockTypeStartPos;
+ MaxPos = 396; //Pos + Len;
+ ExtraPos = Pos;
+ BlockLen = 0;
+ BlockByte = 0;
+ BlockCode = 0;
+ BlockType = 0;
+ BlockTypeByte = 0;
+ BlockTypeLen = 0;
+ RestPixel = Len;
+
+ for (Idx = 0; Idx < Len; Idx++) {
+
+ if (BlockLen == 0) {
+ if (BlockTypeLen==0) {
+ BlockTypeByte = Compressed[BlockTypePos];
+ BlockTypePos++;
+ BlockTypeLen = 4;
+ }
+ BlockType = (BlockTypeByte & 0xC0) >> 6;
+
+ //statistic:
+ usbvision->ComprBlockTypes[BlockType]++;
+
+ Pos = ExtraPos;
+ if (BlockType == 0) {
+ if(RestPixel >= 24) {
+ Idx += 23;
+ RestPixel -= 24;
+ Integrator = Decompressed[Idx];
+ } else {
+ Idx += RestPixel - 1;
+ RestPixel = 0;
+ }
+ } else {
+ BlockCode = Compressed[Pos];
+ Pos++;
+ if (RestPixel >= 24) {
+ BlockLen = 24;
+ } else {
+ BlockLen = RestPixel;
+ }
+ RestPixel -= BlockLen;
+ ExtraPos = Pos + (BlockLen / 4);
+ }
+ BlockTypeByte <<= 2;
+ BlockTypeLen -= 1;
+ }
+ if (BlockLen > 0) {
+ if ((BlockLen%4) == 0) {
+ BlockByte = Compressed[Pos];
+ Pos++;
+ }
+ if (BlockType == 1) { //inter Block
+ Integrator = Decompressed[Idx];
+ }
+ switch (BlockByte & 0xC0) {
+ case 0x03<<6:
+ Integrator += Compressed[ExtraPos];
+ ExtraPos++;
+ break;
+ case 0x02<<6:
+ Integrator += BlockCode;
+ break;
+ case 0x00:
+ Integrator -= BlockCode;
+ break;
+ }
+ Decompressed[Idx] = Integrator;
+ BlockByte <<= 2;
+ BlockLen -= 1;
+ }
+ }
+ *StartPos = ExtraPos;
+ *BlockTypeStartPos = BlockTypePos;
+ return Idx;
+}
+
+
+/*
+ * usbvision_parse_compress()
+ *
+ * Parse compressed frame from the scratch buffer, put
+ * decoded RGB value into the current frame buffer and add the written
+ * number of bytes (RGB) to the *pcopylen.
+ *
+ */
+static enum ParseState usbvision_parse_compress(struct usb_usbvision *usbvision,
+ long *pcopylen)
+{
+#define USBVISION_STRIP_MAGIC 0x5A
+#define USBVISION_STRIP_LEN_MAX 400
+#define USBVISION_STRIP_HEADER_LEN 3
+
+ struct usbvision_frame *frame;
+ unsigned char *f,*u = NULL ,*v = NULL;
+ unsigned char StripData[USBVISION_STRIP_LEN_MAX];
+ unsigned char StripHeader[USBVISION_STRIP_HEADER_LEN];
+ int Idx, IdxEnd, StripLen, StripPtr, StartBlockPos, BlockPos, BlockTypePos;
+ int clipmask_index, bytes_per_pixel, rc;
+ int overlay = usbvision->overlay;
+ int imageSize;
+ unsigned char rv, gv, bv;
+ static unsigned char *Y, *U, *V;
+
+ if (overlay) {
+ frame = &usbvision->overlay_frame;
+ imageSize = frame->frmwidth * frame->frmheight;
+ if (usbvision->overlay_base == NULL) {
+ //video_buffer is not set yet
+ return ParseState_NextFrame;
+ }
+ f = usbvision->overlay_win + frame->curline *
+ usbvision->vid_buf.fmt.bytesperline;
+ }
+ else {
+ frame = &usbvision->frame[usbvision->curFrameNum];
+ imageSize = frame->frmwidth * frame->frmheight;
+ if ( (frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) ||
+ (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420) )
+ { // this is a planar format
+ //... v4l2_linesize not used here.
+ f = frame->data + (frame->width * frame->curline);
+ } else
+ f = frame->data + (frame->v4l2_linesize * frame->curline);
+
+ if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV){ //initialise u and v pointers
+ // get base of u and b planes add halfoffset
+
+ u = frame->data
+ + imageSize
+ + (frame->frmwidth >>1) * frame->curline ;
+ v = u + (imageSize >>1 );
+
+ } else if (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420){
+
+ v = frame->data + imageSize + ((frame->curline* (frame->width))>>2) ;
+ u = v + (imageSize >>2) ;
+ }
+ }
+
+ if (frame->curline == 0) {
+ usbvision_adjust_compression(usbvision);
+ }
+
+ if (scratch_len(usbvision) < USBVISION_STRIP_HEADER_LEN) {
+ return ParseState_Out;
+ }
+
+ //get strip header without changing the scratch_read_ptr
+ scratch_set_extra_ptr(usbvision, &StripPtr, 0);
+ scratch_get_extra(usbvision, &StripHeader[0], &StripPtr,
+ USBVISION_STRIP_HEADER_LEN);
+
+ if (StripHeader[0] != USBVISION_STRIP_MAGIC) {
+ // wrong strip magic
+ usbvision->stripMagicErrors++;
+ return ParseState_NextFrame;
+ }
+
+ if (frame->curline != (int)StripHeader[2]) {
+ //line number missmatch error
+ usbvision->stripLineNumberErrors++;
+ }
+
+ StripLen = 2 * (unsigned int)StripHeader[1];
+ if (StripLen > USBVISION_STRIP_LEN_MAX) {
+ // strip overrun
+ // I think this never happens
+ usbvision_request_intra(usbvision);
+ }
+
+ if (scratch_len(usbvision) < StripLen) {
+ //there is not enough data for the strip
+ return ParseState_Out;
+ }
+
+ if (usbvision->IntraFrameBuffer) {
+ Y = usbvision->IntraFrameBuffer + frame->frmwidth * frame->curline;
+ U = usbvision->IntraFrameBuffer + imageSize + (frame->frmwidth / 2) * (frame->curline / 2);
+ V = usbvision->IntraFrameBuffer + imageSize / 4 * 5 + (frame->frmwidth / 2) * (frame->curline / 2);
+ }
+ else {
+ return ParseState_NextFrame;
+ }
+
+ bytes_per_pixel = frame->v4l2_format.bytes_per_pixel;
+ clipmask_index = frame->curline * MAX_FRAME_WIDTH;
+
+ scratch_get(usbvision, StripData, StripLen);
+
+ IdxEnd = frame->frmwidth;
+ BlockTypePos = USBVISION_STRIP_HEADER_LEN;
+ StartBlockPos = BlockTypePos + (IdxEnd - 1) / 96 + (IdxEnd / 2 - 1) / 96 + 2;
+ BlockPos = StartBlockPos;
+
+ usbvision->BlockPos = BlockPos;
+
+ if ((rc = usbvision_decompress(usbvision, StripData, Y, &BlockPos, &BlockTypePos, IdxEnd)) != IdxEnd) {
+ //return ParseState_Continue;
+ }
+ if (StripLen > usbvision->maxStripLen) {
+ usbvision->maxStripLen = StripLen;
+ }
+
+ if (frame->curline%2) {
+ if ((rc = usbvision_decompress(usbvision, StripData, V, &BlockPos, &BlockTypePos, IdxEnd/2)) != IdxEnd/2) {
+ //return ParseState_Continue;
+ }
+ }
+ else {
+ if ((rc = usbvision_decompress(usbvision, StripData, U, &BlockPos, &BlockTypePos, IdxEnd/2)) != IdxEnd/2) {
+ //return ParseState_Continue;
+ }
+ }
+
+ if (BlockPos > usbvision->comprBlockPos) {
+ usbvision->comprBlockPos = BlockPos;
+ }
+ if (BlockPos > StripLen) {
+ usbvision->stripLenErrors++;
+ }
+
+ for (Idx = 0; Idx < IdxEnd; Idx++) {
+ if((overlay) && (clipped_pixel(clipmask_index))) {
+ f += bytes_per_pixel;
+ }
+ else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
+ *f++ = Y[Idx];
+ *f++ = Idx & 0x01 ? U[Idx/2] : V[Idx/2];
+ }
+ else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) {
+ *f++ = Y[Idx];
+ if ( Idx & 0x01)
+ *u++ = U[Idx>>1] ;
+ else
+ *v++ = V[Idx>>1];
+ }
+ else if (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420) {
+ *f++ = Y [Idx];
+ if ( !(( Idx & 0x01 ) | ( frame->curline & 0x01 )) ){
+
+/* only need do this for 1 in 4 pixels */
+/* intraframe buffer is YUV420 format */
+
+ *u++ = U[Idx >>1];
+ *v++ = V[Idx >>1];
+ }
+
+ }
+ else {
+ YUV_TO_RGB_BY_THE_BOOK(Y[Idx], U[Idx/2], V[Idx/2], rv, gv, bv);
+ switch (frame->v4l2_format.format) {
+ case V4L2_PIX_FMT_GREY:
+ *f++ = Y[Idx];
+ break;
+ case V4L2_PIX_FMT_RGB555:
+ *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 2));
+ *f++ = (0x03 & (gv >> 6)) | (0x7C & (rv >> 1));
+ break;
+ case V4L2_PIX_FMT_RGB565:
+ *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 3));
+ *f++ = (0x07 & (gv >> 5)) | (0xF8 & rv);
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ *f++ = bv;
+ *f++ = gv;
+ *f++ = rv;
+ break;
+ case V4L2_PIX_FMT_RGB32:
+ *f++ = bv;
+ *f++ = gv;
+ *f++ = rv;
+ f++;
+ break;
+ }
+ }
+ clipmask_index++;
+ }
+ /* Deal with non-integer no. of bytes for YUV420P */
+ if (frame->v4l2_format.format != V4L2_PIX_FMT_YVU420 )
+ *pcopylen += frame->v4l2_linesize;
+ else
+ *pcopylen += frame->curline & 0x01 ? frame->v4l2_linesize : frame->v4l2_linesize << 1;
+
+ frame->curline += 1;
+
+ if (frame->curline >= frame->frmheight) {
+ return ParseState_NextFrame;
+ }
+ else {
+ return ParseState_Continue;
+ }
+
+}
+
+
+/*
+ * usbvision_parse_lines_420()
+ *
+ * Parse two lines from the scratch buffer, put
+ * decoded RGB value into the current frame buffer and add the written
+ * number of bytes (RGB) to the *pcopylen.
+ *
+ */
+static enum ParseState usbvision_parse_lines_420(struct usb_usbvision *usbvision,
+ long *pcopylen)
+{
+ struct usbvision_frame *frame;
+ unsigned char *f_even = NULL, *f_odd = NULL;
+ unsigned int pixel_per_line, block;
+ int pixel, block_split;
+ int y_ptr, u_ptr, v_ptr, y_odd_offset;
+ const int y_block_size = 128;
+ const int uv_block_size = 64;
+ const int sub_block_size = 32;
+ const int y_step[] = { 0, 0, 0, 2 }, y_step_size = 4;
+ const int uv_step[]= { 0, 0, 0, 4 }, uv_step_size = 4;
+ unsigned char y[2], u, v; /* YUV components */
+ int y_, u_, v_, vb, uvg, ur;
+ int r_, g_, b_; /* RGB components */
+ unsigned char g;
+ int clipmask_even_index, clipmask_odd_index, bytes_per_pixel;
+ int clipmask_add, stretch_bytes;
+ int overlay = usbvision->overlay;
+
+ if (overlay) {
+ frame = &usbvision->overlay_frame;
+ if (usbvision->overlay_base == NULL) {
+ //video_buffer is not set yet
+ return ParseState_NextFrame;
+ }
+ f_even = usbvision->overlay_win + frame->curline *
+ usbvision->vid_buf.fmt.bytesperline;
+ f_odd = f_even + usbvision->vid_buf.fmt.bytesperline * usbvision->stretch_height;
+ }
+ else {
+ frame = &usbvision->frame[usbvision->curFrameNum];
+ f_even = frame->data + (frame->v4l2_linesize * frame->curline);
+ f_odd = f_even + frame->v4l2_linesize * usbvision->stretch_height;
+ }
+
+ /* Make sure there's enough data for the entire line */
+ /* In this mode usbvision transfer 3 bytes for every 2 pixels */
+ /* I need two lines to decode the color */
+ bytes_per_pixel = frame->v4l2_format.bytes_per_pixel;
+ stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel;
+ clipmask_even_index = frame->curline * MAX_FRAME_WIDTH;
+ clipmask_odd_index = clipmask_even_index + MAX_FRAME_WIDTH;
+ clipmask_add = usbvision->stretch_width;
+ pixel_per_line = frame->isocHeader.frameWidth;
+
+ if (scratch_len(usbvision) < (int)pixel_per_line * 3) {
+ //printk(KERN_DEBUG "out of data, need %d\n", len);
+ return ParseState_Out;
+ }
+
+ if ((frame->curline + 1) >= frame->frmheight) {
+ return ParseState_NextFrame;
+ }
+
+ block_split = (pixel_per_line%y_block_size) ? 1 : 0; //are some blocks splitted into different lines?
+
+ y_odd_offset = (pixel_per_line / y_block_size) * (y_block_size + uv_block_size)
+ + block_split * uv_block_size;
+
+ scratch_set_extra_ptr(usbvision, &y_ptr, y_odd_offset);
+ scratch_set_extra_ptr(usbvision, &u_ptr, y_block_size);
+ scratch_set_extra_ptr(usbvision, &v_ptr, y_odd_offset
+ + (4 - block_split) * sub_block_size);
+
+ for (block = 0; block < (pixel_per_line / sub_block_size);
+ block++) {
+
+
+ for (pixel = 0; pixel < sub_block_size; pixel +=2) {
+ scratch_get(usbvision, &y[0], 2);
+ scratch_get_extra(usbvision, &u, &u_ptr, 1);
+ scratch_get_extra(usbvision, &v, &v_ptr, 1);
+
+ //I don't use the YUV_TO_RGB macro for better performance
+ v_ = v - 128;
+ u_ = u - 128;
+ vb = 132252 * v_;
+ uvg= -53281 * u_ - 25625 * v_;
+ ur = 104595 * u_;
+
+ if((overlay) && (clipped_pixel(clipmask_even_index))) {
+ f_even += bytes_per_pixel;
+ }
+ else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
+ *f_even++ = y[0];
+ *f_even++ = v;
+ }
+ else {
+ y_ = 76284 * (y[0] - 16);
+
+ b_ = (y_ + vb) >> 16;
+ g_ = (y_ + uvg)>> 16;
+ r_ = (y_ + ur) >> 16;
+
+ switch (frame->v4l2_format.format) {
+ case V4L2_PIX_FMT_RGB565:
+ g = LIMIT_RGB(g_);
+ *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3));
+ *f_even++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_));
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ *f_even++ = LIMIT_RGB(b_);
+ *f_even++ = LIMIT_RGB(g_);
+ *f_even++ = LIMIT_RGB(r_);
+ break;
+ case V4L2_PIX_FMT_RGB32:
+ *f_even++ = LIMIT_RGB(b_);
+ *f_even++ = LIMIT_RGB(g_);
+ *f_even++ = LIMIT_RGB(r_);
+ f_even++;
+ break;
+ case V4L2_PIX_FMT_RGB555:
+ g = LIMIT_RGB(g_);
+ *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2));
+ *f_even++ = (0x03 & ( g >> 6)) |
+ (0x7C & (LIMIT_RGB(r_) >> 1));
+ break;
+ }
+ }
+ clipmask_even_index += clipmask_add;
+ f_even += stretch_bytes;
+
+ if((overlay) && (clipped_pixel(clipmask_even_index))) {
+ f_even += bytes_per_pixel;
+ }
+ else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
+ *f_even++ = y[1];
+ *f_even++ = u;
+ }
+ else {
+ y_ = 76284 * (y[1] - 16);
+
+ b_ = (y_ + vb) >> 16;
+ g_ = (y_ + uvg)>> 16;
+ r_ = (y_ + ur) >> 16;
+
+ switch (frame->v4l2_format.format) {
+ case V4L2_PIX_FMT_RGB565:
+ g = LIMIT_RGB(g_);
+ *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3));
+ *f_even++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_));
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ *f_even++ = LIMIT_RGB(b_);
+ *f_even++ = LIMIT_RGB(g_);
+ *f_even++ = LIMIT_RGB(r_);
+ break;
+ case V4L2_PIX_FMT_RGB32:
+ *f_even++ = LIMIT_RGB(b_);
+ *f_even++ = LIMIT_RGB(g_);
+ *f_even++ = LIMIT_RGB(r_);
+ f_even++;
+ break;
+ case V4L2_PIX_FMT_RGB555:
+ g = LIMIT_RGB(g_);
+ *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2));
+ *f_even++ = (0x03 & ( g >> 6)) |
+ (0x7C & (LIMIT_RGB(r_) >> 1));
+ break;
+ }
+ }
+ clipmask_even_index += clipmask_add;
+ f_even += stretch_bytes;
+
+ scratch_get_extra(usbvision, &y[0], &y_ptr, 2);
+
+ if ((overlay) && (clipped_pixel(clipmask_odd_index))) {
+ f_odd += bytes_per_pixel;
+ }
+ else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
+ *f_odd++ = y[0];
+ *f_odd++ = v;
+ }
+ else {
+ y_ = 76284 * (y[0] - 16);
+
+ b_ = (y_ + vb) >> 16;
+ g_ = (y_ + uvg)>> 16;
+ r_ = (y_ + ur) >> 16;
+
+ switch (frame->v4l2_format.format) {
+ case V4L2_PIX_FMT_RGB565:
+ g = LIMIT_RGB(g_);
+ *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3));
+ *f_odd++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_));
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ *f_odd++ = LIMIT_RGB(b_);
+ *f_odd++ = LIMIT_RGB(g_);
+ *f_odd++ = LIMIT_RGB(r_);
+ break;
+ case V4L2_PIX_FMT_RGB32:
+ *f_odd++ = LIMIT_RGB(b_);
+ *f_odd++ = LIMIT_RGB(g_);
+ *f_odd++ = LIMIT_RGB(r_);
+ f_odd++;
+ break;
+ case V4L2_PIX_FMT_RGB555:
+ g = LIMIT_RGB(g_);
+ *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2));
+ *f_odd++ = (0x03 & ( g >> 6)) |
+ (0x7C & (LIMIT_RGB(r_) >> 1));
+ break;
+ }
+ }
+ clipmask_odd_index += clipmask_add;
+ f_odd += stretch_bytes;
+
+ if((overlay) && (clipped_pixel(clipmask_odd_index))) {
+ f_odd += bytes_per_pixel;
+ }
+ else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
+ *f_odd++ = y[1];
+ *f_odd++ = u;
+ }
+ else {
+ y_ = 76284 * (y[1] - 16);
+
+ b_ = (y_ + vb) >> 16;
+ g_ = (y_ + uvg)>> 16;
+ r_ = (y_ + ur) >> 16;
+
+ switch (frame->v4l2_format.format) {
+ case V4L2_PIX_FMT_RGB565:
+ g = LIMIT_RGB(g_);
+ *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3));
+ *f_odd++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_));
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ *f_odd++ = LIMIT_RGB(b_);
+ *f_odd++ = LIMIT_RGB(g_);
+ *f_odd++ = LIMIT_RGB(r_);
+ break;
+ case V4L2_PIX_FMT_RGB32:
+ *f_odd++ = LIMIT_RGB(b_);
+ *f_odd++ = LIMIT_RGB(g_);
+ *f_odd++ = LIMIT_RGB(r_);
+ f_odd++;
+ break;
+ case V4L2_PIX_FMT_RGB555:
+ g = LIMIT_RGB(g_);
+ *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2));
+ *f_odd++ = (0x03 & ( g >> 6)) |
+ (0x7C & (LIMIT_RGB(r_) >> 1));
+ break;
+ }
+ }
+ clipmask_odd_index += clipmask_add;
+ f_odd += stretch_bytes;
+ }
+
+ scratch_rm_old(usbvision,y_step[block % y_step_size] * sub_block_size);
+ scratch_inc_extra_ptr(&y_ptr, y_step[(block + 2 * block_split) % y_step_size]
+ * sub_block_size);
+ scratch_inc_extra_ptr(&u_ptr, uv_step[block % uv_step_size]
+ * sub_block_size);
+ scratch_inc_extra_ptr(&v_ptr, uv_step[(block + 2 * block_split) % uv_step_size]
+ * sub_block_size);
+ }
+
+ scratch_rm_old(usbvision, pixel_per_line * 3 / 2
+ + block_split * sub_block_size);
+
+ frame->curline += 2 * usbvision->stretch_height;
+ *pcopylen += frame->v4l2_linesize * 2 * usbvision->stretch_height;
+
+ if (frame->curline >= frame->frmheight)
+ return ParseState_NextFrame;
+ else
+ return ParseState_Continue;
+}
+
+/*
+ * usbvision_parse_data()
+ *
+ * Generic routine to parse the scratch buffer. It employs either
+ * usbvision_find_header() or usbvision_parse_lines() to do most
+ * of work.
+ *
+ */
+static void usbvision_parse_data(struct usb_usbvision *usbvision)
+{
+ struct usbvision_frame *frame;
+ enum ParseState newstate;
+ long copylen = 0;
+
+ if (usbvision->overlay) {
+ frame = &usbvision->overlay_frame;
+ }
+ else {
+ frame = &usbvision->frame[usbvision->curFrameNum];
+ }
+
+ PDEBUG(DBG_PARSE, "parsing len=%d\n", scratch_len(usbvision));
+
+
+ while (1) {
+
+ newstate = ParseState_Out;
+ if (scratch_len(usbvision)) {
+ if (frame->scanstate == ScanState_Scanning) {
+ newstate = usbvision_find_header(usbvision);
+ }
+ else if (frame->scanstate == ScanState_Lines) {
+ if (usbvision->isocMode == ISOC_MODE_YUV420) {
+ newstate = usbvision_parse_lines_420(usbvision, ©len);
+ }
+ else if (usbvision->isocMode == ISOC_MODE_YUV422) {
+ newstate = usbvision_parse_lines_422(usbvision, ©len);
+ }
+ else if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
+ newstate = usbvision_parse_compress(usbvision, ©len);
+ }
+
+ }
+ }
+ if (newstate == ParseState_Continue) {
+ continue;
+ }
+ else if ((newstate == ParseState_NextFrame) || (newstate == ParseState_Out)) {
+ break;
+ }
+ else {
+ return; /* ParseState_EndParse */
+ }
+ }
+
+ if (newstate == ParseState_NextFrame) {
+ frame->grabstate = FrameState_Done;
+ do_gettimeofday(&(frame->timestamp));
+ frame->sequence = usbvision->frame_num;
+ if (usbvision->overlay) {
+ frame->grabstate = FrameState_Grabbing;
+ frame->scanstate = ScanState_Scanning;
+ frame->scanlength = 0;
+ copylen = 0;
+ }
+ else {
+ usbvision->curFrameNum = -1;
+ }
+ usbvision->frame_num++;
+
+ /* Optionally display statistics on the screen */
+ if (flags & FLAGS_OSD_STATS)
+ usbvision_osd_stats(usbvision, frame);
+
+ /* This will cause the process to request another frame. */
+ if (waitqueue_active(&frame->wq)) {
+ wake_up_interruptible(&frame->wq);
+ }
+ }
+
+ /* Update the frame's uncompressed length. */
+ frame->scanlength += copylen;
+}
+
+
+/*
+ * Make all of the blocks of data contiguous
+ */
+static int usbvision_compress_isochronous(struct usb_usbvision *usbvision,
+ struct urb *urb)
+{
+ unsigned char *packet_data;
+ int i, totlen = 0;
+
+ for (i = 0; i < urb->number_of_packets; i++) {
+ int packet_len = urb->iso_frame_desc[i].actual_length;
+ int packet_stat = urb->iso_frame_desc[i].status;
+
+ packet_data = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
+
+ /* Detect and ignore errored packets */
+ if (packet_stat) { // packet_stat != 0 ?????????????
+ PDEBUG(DBG_ISOC, "data error: [%d] len=%d, status=%X", i, packet_len, packet_stat);
+ usbvision->isocErrCount++;
+ continue;
+ }
+
+ /* Detect and ignore empty packets */
+ if (packet_len < 0) {
+ PDEBUG(DBG_ISOC, "error packet [%d]", i);
+ usbvision->isocSkipCount++;
+ continue;
+ }
+ else if (packet_len == 0) { /* Frame end ????? */
+ PDEBUG(DBG_ISOC, "null packet [%d]", i);
+ usbvision->isocstate=IsocState_NoFrame;
+ usbvision->isocSkipCount++;
+ continue;
+ }
+ else if (packet_len > usbvision->isocPacketSize) {
+ PDEBUG(DBG_ISOC, "packet[%d] > isocPacketSize", i);
+ usbvision->isocSkipCount++;
+ continue;
+ }
+
+ PDEBUG(DBG_ISOC, "packet ok [%d] len=%d", i, packet_len);
+
+ if (usbvision->isocstate==IsocState_NoFrame) { //new frame begins
+ usbvision->isocstate=IsocState_InFrame;
+ scratch_mark_header(usbvision);
+ usbvision_measure_bandwidth(usbvision);
+ PDEBUG(DBG_ISOC, "packet with header");
+ }
+
+ /*
+ * If usbvision continues to feed us with data but there is no
+ * consumption (if, for example, V4L client fell asleep) we
+ * may overflow the buffer. We have to move old data over to
+ * free room for new data. This is bad for old data. If we
+ * just drop new data then it's bad for new data... choose
+ * your favorite evil here.
+ */
+ if (scratch_free(usbvision) < packet_len) {
+
+ usbvision->scratch_ovf_count++;
+ PDEBUG(DBG_ISOC, "scratch buf overflow! scr_len: %d, n: %d",
+ scratch_len(usbvision), packet_len);
+ scratch_rm_old(usbvision, packet_len - scratch_free(usbvision));
+ }
+
+ /* Now we know that there is enough room in scratch buffer */
+ scratch_put(usbvision, packet_data, packet_len);
+ totlen += packet_len;
+ usbvision->isocDataCount += packet_len;
+ usbvision->isocPacketCount++;
+ }
+#if ENABLE_HEXDUMP
+ if (totlen > 0) {
+ static int foo = 0;
+ if (foo < 1) {
+ printk(KERN_DEBUG "+%d.\n", usbvision->scratchlen);
+ usbvision_hexdump(data0, (totlen > 64) ? 64 : totlen);
+ ++foo;
+ }
+ }
+#endif
+ return totlen;
+}
+
+static void usbvision_isocIrq(struct urb *urb, struct pt_regs *regs)
+{
+ int errCode = 0;
+ int len;
+ struct usb_usbvision *usbvision = urb->context;
+ int i;
+ unsigned long startTime = jiffies;
+
+ /* We don't want to do anything if we are about to be removed! */
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return;
+
+ if (!usbvision->streaming) {
+ PDEBUG(DBG_IRQ, "oops, not streaming, but interrupt");
+ return;
+ }
+
+ /* Copy the data received into our scratch buffer */
+ len = usbvision_compress_isochronous(usbvision, urb);
+
+ usbvision->isocUrbCount++;
+ usbvision->urb_length = len;
+
+ for (i = 0; i < USBVISION_URB_FRAMES; i++) {
+ urb->iso_frame_desc[i].status = 0;
+ urb->iso_frame_desc[i].actual_length = 0;
+ }
+ urb->status = 0;
+ urb->dev = usbvision->dev;
+ errCode = usb_submit_urb (urb, GFP_ATOMIC);
+
+/* Disable this warning. By design of the driver. */
+// if(errCode) {
+// err("%s: usb_submit_urb failed: error %d", __FUNCTION__, errCode);
+// }
+
+ /* If we collected enough data let's parse! */
+ if (scratch_len(usbvision) > USBVISION_HEADER_LENGTH) { /* 12 == header_length */
+ /*If we don't have a frame we're current working on, complain */
+ if ((usbvision->curFrameNum >= 0) || (usbvision->overlay))
+ usbvision_parse_data(usbvision);
+ else {
+ PDEBUG(DBG_IRQ, "received data, but no one needs it");
+ scratch_reset(usbvision);
+ }
+ }
+ usbvision->timeInIrq += jiffies - startTime;
+ return;
+}
+
+/*************************************/
+/* Low level usbvision access functions */
+/*************************************/
+
+/*
+ * usbvision_read_reg()
+ *
+ * return < 0 -> Error
+ * >= 0 -> Data
+ */
+
+static int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg)
+{
+ int errCode = 0;
+ unsigned char buffer[1];
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return -1;
+
+ errCode = usb_control_msg(usbvision->dev, usb_rcvctrlpipe(usbvision->dev, 1),
+ USBVISION_OP_CODE,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT,
+ 0, (__u16) reg, buffer, 1, HZ);
+
+ if (errCode < 0) {
+ err("%s: failed: error %d", __FUNCTION__, errCode);
+ return errCode;
+ }
+ return buffer[0];
+}
+
+/*
+ * usbvision_write_reg()
+ *
+ * return 1 -> Reg written
+ * 0 -> usbvision is not yet ready
+ * -1 -> Something went wrong
+ */
+
+static int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg,
+ unsigned char value)
+{
+ int errCode = 0;
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return 0;
+
+ errCode = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
+ USBVISION_OP_CODE,
+ USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_ENDPOINT, 0, (__u16) reg, &value, 1, HZ);
+
+ if (errCode < 0) {
+ err("%s: failed: error %d", __FUNCTION__, errCode);
+ }
+ return errCode;
+}
+
+
+static void usbvision_ctrlUrb_complete(struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_usbvision *usbvision = (struct usb_usbvision *)urb->context;
+
+ PDEBUG(DBG_IRQ, "");
+ usbvision->ctrlUrbBusy = 0;
+ if (waitqueue_active(&usbvision->ctrlUrb_wq)) {
+ wake_up_interruptible(&usbvision->ctrlUrb_wq);
+ }
+}
+
+
+static int usbvision_write_reg_irq(struct usb_usbvision *usbvision,int address,
+ unsigned char *data, int len)
+{
+ int errCode = 0;
+
+ PDEBUG(DBG_IRQ, "");
+ if (len > 8) {
+ return -EFAULT;
+ }
+// down(&usbvision->ctrlUrbLock);
+ if (usbvision->ctrlUrbBusy) {
+// up(&usbvision->ctrlUrbLock);
+ return -EBUSY;
+ }
+ usbvision->ctrlUrbBusy = 1;
+// up(&usbvision->ctrlUrbLock);
+
+ usbvision->ctrlUrbSetup.bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT;
+ usbvision->ctrlUrbSetup.bRequest = USBVISION_OP_CODE;
+ usbvision->ctrlUrbSetup.wValue = 0;
+ usbvision->ctrlUrbSetup.wIndex = cpu_to_le16(address);
+ usbvision->ctrlUrbSetup.wLength = cpu_to_le16(len);
+ usb_fill_control_urb (usbvision->ctrlUrb, usbvision->dev,
+ usb_sndctrlpipe(usbvision->dev, 1),
+ (unsigned char *)&usbvision->ctrlUrbSetup,
+ (void *)usbvision->ctrlUrbBuffer, len,
+ usbvision_ctrlUrb_complete,
+ (void *)usbvision);
+
+ memcpy(usbvision->ctrlUrbBuffer, data, len);
+
+ errCode = usb_submit_urb(usbvision->ctrlUrb, GFP_ATOMIC);
+ if (errCode < 0) {
+ // error in usb_submit_urb()
+ usbvision->ctrlUrbBusy = 0;
+ }
+ PDEBUG(DBG_IRQ, "submit %d byte: error %d", len, errCode);
+ return errCode;
+}
+
+
+
+
+static int usbvision_init_compression(struct usb_usbvision *usbvision)
+{
+ int errCode = 0;
+
+ usbvision->lastIsocFrameNum = -1;
+ usbvision->isocDataCount = 0;
+ usbvision->isocPacketCount = 0;
+ usbvision->isocSkipCount = 0;
+ usbvision->comprLevel = 50;
+ usbvision->lastComprLevel = -1;
+ usbvision->isocUrbCount = 0;
+ usbvision->requestIntra = 1;
+ usbvision->isocMeasureBandwidthCount = 0;
+
+ return errCode;
+}
+
+/* this function measures the used bandwidth since last call
+ * return: 0 : no error
+ * sets usedBandwidth to 1-100 : 1-100% of full bandwidth resp. to isocPacketSize
+ */
+static int usbvision_measure_bandwidth (struct usb_usbvision *usbvision)
+{
+ int errCode = 0;
+
+ if (usbvision->isocMeasureBandwidthCount < 2) { // this gives an average bandwidth of 3 frames
+ usbvision->isocMeasureBandwidthCount++;
+ return errCode;
+ }
+ if ((usbvision->isocPacketSize > 0) && (usbvision->isocPacketCount > 0)) {
+ usbvision->usedBandwidth = usbvision->isocDataCount /
+ (usbvision->isocPacketCount + usbvision->isocSkipCount) *
+ 100 / usbvision->isocPacketSize;
+ }
+ usbvision->isocMeasureBandwidthCount = 0;
+ usbvision->isocDataCount = 0;
+ usbvision->isocPacketCount = 0;
+ usbvision->isocSkipCount = 0;
+ return errCode;
+}
+
+static int usbvision_adjust_compression (struct usb_usbvision *usbvision)
+{
+ int errCode = 0;
+ unsigned char buffer[6];
+
+ PDEBUG(DBG_IRQ, "");
+ if ((adjustCompression) && (usbvision->usedBandwidth > 0)) {
+ usbvision->comprLevel += (usbvision->usedBandwidth - 90) / 2;
+ RESTRICT_TO_RANGE(usbvision->comprLevel, 0, 100);
+ if (usbvision->comprLevel != usbvision->lastComprLevel) {
+ int distorsion;
+ if (usbvision->bridgeType == BRIDGE_NT1004 || usbvision->bridgeType == BRIDGE_NT1005) {
+ buffer[0] = (unsigned char)(4 + 16 * usbvision->comprLevel / 100); // PCM Threshold 1
+ buffer[1] = (unsigned char)(4 + 8 * usbvision->comprLevel / 100); // PCM Threshold 2
+ distorsion = 7 + 248 * usbvision->comprLevel / 100;
+ buffer[2] = (unsigned char)(distorsion & 0xFF); // Average distorsion Threshold (inter)
+ buffer[3] = (unsigned char)(distorsion & 0xFF); // Average distorsion Threshold (intra)
+ distorsion = 1 + 42 * usbvision->comprLevel / 100;
+ buffer[4] = (unsigned char)(distorsion & 0xFF); // Maximum distorsion Threshold (inter)
+ buffer[5] = (unsigned char)(distorsion & 0xFF); // Maximum distorsion Threshold (intra)
+ }
+ else { //BRIDGE_NT1003
+ buffer[0] = (unsigned char)(4 + 16 * usbvision->comprLevel / 100); // PCM threshold 1
+ buffer[1] = (unsigned char)(4 + 8 * usbvision->comprLevel / 100); // PCM threshold 2
+ distorsion = 2 + 253 * usbvision->comprLevel / 100;
+ buffer[2] = (unsigned char)(distorsion & 0xFF); // distorsion threshold bit0-7
+ buffer[3] = 0; //(unsigned char)((distorsion >> 8) & 0x0F); // distorsion threshold bit 8-11
+ distorsion = 0 + 43 * usbvision->comprLevel / 100;
+ buffer[4] = (unsigned char)(distorsion & 0xFF); // maximum distorsion bit0-7
+ buffer[5] = 0; //(unsigned char)((distorsion >> 8) & 0x01); // maximum distorsion bit 8
+ }
+ errCode = usbvision_write_reg_irq(usbvision, USBVISION_PCM_THR1, buffer, 6);
+ if (errCode == 0){
+ PDEBUG(DBG_IRQ, "new compr params %#02x %#02x %#02x %#02x %#02x %#02x", buffer[0],
+ buffer[1], buffer[2], buffer[3], buffer[4], buffer[5]);
+ usbvision->lastComprLevel = usbvision->comprLevel;
+ }
+ }
+ }
+ return errCode;
+}
+
+static int usbvision_request_intra (struct usb_usbvision *usbvision)
+{
+ int errCode = 0;
+ unsigned char buffer[1];
+
+ PDEBUG(DBG_IRQ, "");
+ usbvision->requestIntra = 1;
+ buffer[0] = 1;
+ usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1);
+ return errCode;
+}
+
+static int usbvision_unrequest_intra (struct usb_usbvision *usbvision)
+{
+ int errCode = 0;
+ unsigned char buffer[1];
+
+ PDEBUG(DBG_IRQ, "");
+ usbvision->requestIntra = 0;
+ buffer[0] = 0;
+ usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1);
+ return errCode;
+}
+
+/* ----------------------------------------------------------------------- */
+/* I2C functions */
+/* ----------------------------------------------------------------------- */
+
+static void call_i2c_clients(struct usb_usbvision *usbvision, unsigned int cmd,
+ void *arg)
+{
+
+ int i;
+
+ for (i = 0; i < USBVISION_I2C_CLIENTS_MAX; i++) {
+ if (NULL == usbvision->i2c_clients[i])
+ continue;
+ if (NULL == usbvision->i2c_clients[i]->driver->command)
+ continue;
+ usbvision->i2c_clients[i]->driver->command(usbvision->i2c_clients[i], cmd, arg);
+ }
+}
+
+static int attach_inform(struct i2c_client *client)
+{
+ struct usb_usbvision *usbvision;
+ struct tuner_setup tun_addr;
+ int i;
+ v4l2_std_id stdId;
+
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+ usbvision = (struct usb_usbvision *)client->adapter->data;
+ #else
+ usbvision = (struct usb_usbvision *)i2c_get_adapdata(client->adapter);
+ #endif
+
+ for (i = 0; i < USBVISION_I2C_CLIENTS_MAX; i++) {
+ if (usbvision->i2c_clients[i] == NULL ||
+ usbvision->i2c_clients[i]->driver->id ==
+ client->driver->id) {
+ usbvision->i2c_clients[i] = client;
+ break;
+ }
+ }
+ if ((usbvision->have_tuner) && (usbvision->tuner_type != -1)) {
+ tun_addr.mode_mask = T_ANALOG_TV;
+ tun_addr.type = usbvision->tuner_type;
+ tun_addr.addr = ADDR_UNSET;
+ client->driver->command(client,TUNER_SET_TYPE_ADDR, &tun_addr);
+
+ call_i2c_clients(usbvision, VIDIOC_S_INPUT, &usbvision->input.index);
+ }
+ // FIXME : need to add a call VIDIOC_S_CTRL for each control
+/* call_i2c_clients(usbvision, DECODER_SET_PICTURE, &usbvision->vpic); */
+ stdId = usbvision->input.std;
+ call_i2c_clients(usbvision, VIDIOC_S_STD, &stdId);
+
+ PDEBUG(DBG_I2C, "usbvision[%d] attaches %s", usbvision->nr, client->name);
+
+ return 0;
+}
+
+static int detach_inform(struct i2c_client *client)
+{
+ struct usb_usbvision *usbvision;
+ int i;
+
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+ usbvision = (struct usb_usbvision *)client->adapter->data;
+ #else
+ usbvision = (struct usb_usbvision *)i2c_get_adapdata(client->adapter);
+ #endif
+
+ PDEBUG(DBG_I2C, "usbvision[%d] detaches %s", usbvision->nr, client->name);
+ for (i = 0; i < USBVISION_I2C_CLIENTS_MAX; i++) {
+ if (NULL != usbvision->i2c_clients[i] &&
+ usbvision->i2c_clients[i]->driver->id ==
+ client->driver->id) {
+ usbvision->i2c_clients[i] = NULL;
+ break;
+ }
+ }
+ return 0;
+}
+
+static int
+usbvision_i2c_read_max4(struct usb_usbvision *usbvision, unsigned char addr,
+ char *buf, short len)
+{
+ int rc, retries;
+
+ for (retries = 5;;) {
+ rc = usbvision_write_reg(usbvision, USBVISION_SER_ADRS, addr);
+ if (rc < 0)
+ return rc;
+
+ /* Initiate byte read cycle */
+ /* USBVISION_SER_CONT <- d0-d2 n. of bytes to r/w */
+ /* d3 0=Wr 1=Rd */
+ rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT,
+ (len & 0x07) | 0x18);
+ if (rc < 0)
+ return rc;
+
+ /* Test for Busy and ACK */
+ do {
+ /* USBVISION_SER_CONT -> d4 == 0 busy */
+ rc = usbvision_read_reg(usbvision, USBVISION_SER_CONT);
+ } while (rc > 0 && ((rc & 0x10) != 0)); /* Retry while busy */
+ if (rc < 0)
+ return rc;
+
+ /* USBVISION_SER_CONT -> d5 == 1 Not ack */
+ if ((rc & 0x20) == 0) /* Ack? */
+ break;
+
+ /* I2C abort */
+ rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT, 0x00);
+ if (rc < 0)
+ return rc;
+
+ if (--retries < 0)
+ return -1;
+ }
+
+ switch (len) {
+ case 4:
+ buf[3] = usbvision_read_reg(usbvision, USBVISION_SER_DAT4);
+ case 3:
+ buf[2] = usbvision_read_reg(usbvision, USBVISION_SER_DAT3);
+ case 2:
+ buf[1] = usbvision_read_reg(usbvision, USBVISION_SER_DAT2);
+ case 1:
+ buf[0] = usbvision_read_reg(usbvision, USBVISION_SER_DAT1);
+ break;
+ default:
+ printk(KERN_ERR
+ "usbvision_i2c_read_max4: buffer length > 4\n");
+ }
+
+ if (debug & DBG_I2C) {
+ int idx;
+ for (idx = 0; idx < len; idx++) {
+ PDEBUG(DBG_I2C, "read %x from address %x", (unsigned char)buf[idx], addr);
+ }
+ }
+ return len;
+}
+
+
+static int usbvision_i2c_write_max4(struct usb_usbvision *usbvision,
+ unsigned char addr, const char *buf,
+ short len)
+{
+ int rc, retries;
+ int i;
+ unsigned char value[6];
+ unsigned char ser_cont;
+
+ ser_cont = (len & 0x07) | 0x10;
+
+ value[0] = addr;
+ value[1] = ser_cont;
+ for (i = 0; i < len; i++)
+ value[i + 2] = buf[i];
+
+ for (retries = 5;;) {
+ rc = usb_control_msg(usbvision->dev,
+ usb_sndctrlpipe(usbvision->dev, 1),
+ USBVISION_OP_CODE,
+ USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_ENDPOINT, 0,
+ (__u16) USBVISION_SER_ADRS, value,
+ len + 2, HZ);
+
+ if (rc < 0)
+ return rc;
+
+ rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT,
+ (len & 0x07) | 0x10);
+ if (rc < 0)
+ return rc;
+
+ /* Test for Busy and ACK */
+ do {
+ rc = usbvision_read_reg(usbvision, USBVISION_SER_CONT);
+ } while (rc > 0 && ((rc & 0x10) != 0)); /* Retry while busy */
+ if (rc < 0)
+ return rc;
+
+ if ((rc & 0x20) == 0) /* Ack? */
+ break;
+
+ /* I2C abort */
+ usbvision_write_reg(usbvision, USBVISION_SER_CONT, 0x00);
+
+ if (--retries < 0)
+ return -1;
+
+ }
+
+ if (debug & DBG_I2C) {
+ int idx;
+ for (idx = 0; idx < len; idx++) {
+ PDEBUG(DBG_I2C, "wrote %x at address %x", (unsigned char)buf[idx], addr);
+ }
+ }
+ return len;
+}
+
+static int usbvision_i2c_write(void *data, unsigned char addr, char *buf,
+ short len)
+{
+ char *bufPtr = buf;
+ int retval;
+ int wrcount = 0;
+ int count;
+ int maxLen = 4;
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) data;
+
+ while (len > 0) {
+ count = (len > maxLen) ? maxLen : len;
+ retval = usbvision_i2c_write_max4(usbvision, addr, bufPtr, count);
+ if (retval > 0) {
+ len -= count;
+ bufPtr += count;
+ wrcount += count;
+ } else
+ return (retval < 0) ? retval : -EFAULT;
+ }
+ return wrcount;
+}
+
+static int usbvision_i2c_read(void *data, unsigned char addr, char *buf,
+ short len)
+{
+ char temp[4];
+ int retval, i;
+ int rdcount = 0;
+ int count;
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) data;
+
+ while (len > 0) {
+ count = (len > 3) ? 4 : len;
+ retval = usbvision_i2c_read_max4(usbvision, addr, temp, count);
+ if (retval > 0) {
+ for (i = 0; i < len; i++)
+ buf[rdcount + i] = temp[i];
+ len -= count;
+ rdcount += count;
+ } else
+ return (retval < 0) ? retval : -EFAULT;
+ }
+ return rdcount;
+}
+
+static struct i2c_algo_usb_data i2c_algo_template = {
+ .data = NULL,
+ .inb = usbvision_i2c_read,
+ .outb = usbvision_i2c_write,
+ .udelay = 10,
+ .mdelay = 10,
+ .timeout = 100,
+};
+
+static struct i2c_adapter i2c_adap_template = {
+ .owner = THIS_MODULE,
+ .name = "usbvision",
+ .id = I2C_HW_B_BT848, /* FIXME */
+ .algo = NULL,
+ .algo_data = NULL,
+ .client_register = attach_inform,
+ .client_unregister = detach_inform,
+#if defined (I2C_ADAP_CLASS_TV_ANALOG)
+ .class = I2C_ADAP_CLASS_TV_ANALOG,
+#elif defined (I2C_CLASS_TV_ANALOG)
+ .class = I2C_CLASS_TV_ANALOG,
+#endif
+};
+
+static struct i2c_client i2c_client_template = {
+ .name = "usbvision internal",
+ .flags = 0,
+ .addr = 0,
+ .adapter = NULL,
+ .driver = NULL,
+};
+
+static int usbvision_init_i2c(struct usb_usbvision *usbvision)
+{
+ memcpy(&usbvision->i2c_adap, &i2c_adap_template,
+ sizeof(struct i2c_adapter));
+ memcpy(&usbvision->i2c_algo, &i2c_algo_template,
+ sizeof(struct i2c_algo_usb_data));
+ memcpy(&usbvision->i2c_client, &i2c_client_template,
+ sizeof(struct i2c_client));
+
+ sprintf(usbvision->i2c_adap.name + strlen(usbvision->i2c_adap.name),
+ " #%d", usbvision->vdev->minor & 0x1f);
+ PDEBUG(DBG_I2C, "Adaptername: %s", usbvision->i2c_adap.name);
+
+ i2c_set_adapdata(&usbvision->i2c_adap, usbvision);
+ i2c_set_clientdata(&usbvision->i2c_client, usbvision);
+ i2c_set_algo_usb_data(&usbvision->i2c_algo, usbvision);
+
+ usbvision->i2c_adap.algo_data = &usbvision->i2c_algo;
+ usbvision->i2c_client.adapter = &usbvision->i2c_adap;
+
+ if (usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_IIC_LRNACK) < 0) {
+ printk(KERN_ERR "usbvision_init_i2c: can't wirte reg\n");
+ return -EBUSY;
+ }
+
+#ifdef CONFIG_KMOD
+ /* Request the load of the i2c modules we need */
+ if (autoload) {
+ switch (usbvision_device_data[usbvision->DevModel].Codec) {
+ case CODEC_SAA7113:
+ request_module("saa7115");
+ break;
+ case CODEC_SAA7111:
+ request_module("saa7115");
+ break;
+ }
+ if (usbvision_device_data[usbvision->DevModel].Tuner == 1) {
+ request_module("tuner");
+ }
+ }
+#endif
+
+ usbvision->i2c_ok = usbvision_i2c_usb_add_bus(&usbvision->i2c_adap);
+
+ return usbvision->i2c_ok;
+
+}
+
+
+/****************************/
+/* usbvision utility functions */
+/****************************/
+
+static int usbvision_power_off(struct usb_usbvision *usbvision)
+{
+ int errCode = 0;
+
+ PDEBUG(DBG_FUNC, "");
+
+ errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN);
+ if (errCode == 1) {
+ usbvision->power = 0;
+ }
+ PDEBUG(DBG_FUNC, "%s: errCode %d", (errCode!=1)?"ERROR":"power is off", errCode);
+ return errCode;
+}
+
+
+// to call usbvision_power_off from task queue
+static void call_usbvision_power_off(void *_usbvision)
+{
+ struct usb_usbvision *usbvision = _usbvision;
+
+ PDEBUG(DBG_FUNC, "");
+ down_interruptible(&usbvision->lock);
+ if(usbvision->user == 0) {
+ usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
+ usbvision_power_off(usbvision);
+ usbvision->initialized = 0;
+ }
+ up(&usbvision->lock);
+}
+
+
+/*
+ * usbvision_set_video_format()
+ *
+ */
+static int usbvision_set_video_format(struct usb_usbvision *usbvision, int format)
+{
+ static const char proc[] = "usbvision_set_video_format";
+ int rc;
+ unsigned char value[2];
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return 0;
+
+ PDEBUG(DBG_FUNC, "isocMode %#02x", format);
+
+ if ((format != ISOC_MODE_YUV422)
+ && (format != ISOC_MODE_YUV420)
+ && (format != ISOC_MODE_COMPRESS)) {
+ printk(KERN_ERR "usbvision: unknown video format %02x, using default YUV420",
+ format);
+ format = ISOC_MODE_YUV420;
+ }
+ value[0] = 0x0A; //TODO: See the effect of the filter
+ value[1] = format;
+ rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
+ USBVISION_OP_CODE,
+ USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_ENDPOINT, 0,
+ (__u16) USBVISION_FILT_CONT, value, 2, HZ);
+
+ if (rc < 0) {
+ printk(KERN_ERR "%s: ERROR=%d. USBVISION stopped - "
+ "reconnect or reload driver.\n", proc, rc);
+ }
+ usbvision->isocMode = format;
+ return rc;
+}
+
+/*
+ * usbvision_set_output()
+ *
+ */
+
+static int usbvision_set_output(struct usb_usbvision *usbvision, int width,
+ int height)
+{
+ int errCode = 0;
+ int UsbWidth, UsbHeight;
+ unsigned int frameRate=0, frameDrop=0;
+ unsigned char value[4];
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision)) {
+ return 0;
+ }
+
+ if (width > MAX_USB_WIDTH) {
+ UsbWidth = width / 2;
+ usbvision->stretch_width = 2;
+ }
+ else {
+ UsbWidth = width;
+ usbvision->stretch_width = 1;
+ }
+
+ if (height > MAX_USB_HEIGHT) {
+ UsbHeight = height / 2;
+ usbvision->stretch_height = 2;
+ }
+ else {
+ UsbHeight = height;
+ usbvision->stretch_height = 1;
+ }
+
+ RESTRICT_TO_RANGE(UsbWidth, MIN_FRAME_WIDTH, MAX_USB_WIDTH);
+ UsbWidth &= ~(MIN_FRAME_WIDTH-1);
+ RESTRICT_TO_RANGE(UsbHeight, MIN_FRAME_HEIGHT, MAX_USB_HEIGHT);
+ UsbHeight &= ~(1);
+
+ PDEBUG(DBG_FUNC, "usb %dx%d; screen %dx%d; stretch %dx%d",
+ UsbWidth, UsbHeight, width, height,
+ usbvision->stretch_width, usbvision->stretch_height);
+
+ /* I'll not rewrite the same values */
+ if ((UsbWidth != usbvision->curwidth) || (UsbHeight != usbvision->curheight)) {
+ value[0] = UsbWidth & 0xff; //LSB
+ value[1] = (UsbWidth >> 8) & 0x03; //MSB
+ value[2] = UsbHeight & 0xff; //LSB
+ value[3] = (UsbHeight >> 8) & 0x03; //MSB
+
+ errCode = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
+ USBVISION_OP_CODE,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT,
+ 0, (__u16) USBVISION_LXSIZE_O, value, 4, HZ);
+
+ if (errCode < 0) {
+ err("%s failed: error %d", __FUNCTION__, errCode);
+ return errCode;
+ }
+ usbvision->curwidth = usbvision->stretch_width * UsbWidth;
+ usbvision->curheight = usbvision->stretch_height * UsbHeight;
+ }
+
+ if (usbvision->isocMode == ISOC_MODE_YUV422) {
+ frameRate = (usbvision->isocPacketSize * 1000) / (UsbWidth * UsbHeight * 2);
+ }
+ else if (usbvision->isocMode == ISOC_MODE_YUV420) {
+ frameRate = (usbvision->isocPacketSize * 1000) / ((UsbWidth * UsbHeight * 12) / 8);
+ }
+ else {
+ frameRate = FRAMERATE_MAX;
+ }
+
+ if (usbvision->input.std & V4L2_STD_625_50) {
+ frameDrop = frameRate * 32 / 25 - 1;
+ }
+ else if (usbvision->input.std & V4L2_STD_525_60) {
+ frameDrop = frameRate * 32 / 30 - 1;
+ }
+
+ RESTRICT_TO_RANGE(frameDrop, FRAMERATE_MIN, FRAMERATE_MAX);
+
+ PDEBUG(DBG_FUNC, "frameRate %d fps, frameDrop %d", frameRate, frameDrop);
+
+ frameDrop = FRAMERATE_MAX; // We can allow the maximum here, because dropping is controlled
+
+ /* frameDrop = 7; => framePhase = 1, 5, 9, 13, 17, 21, 25, 0, 4, 8, ...
+ => frameSkip = 4;
+ => frameRate = (7 + 1) * 25 / 32 = 200 / 32 = 6.25;
+
+ frameDrop = 9; => framePhase = 1, 5, 8, 11, 14, 17, 21, 24, 27, 1, 4, 8, ...
+ => frameSkip = 4, 3, 3, 3, 3, 4, 3, 3, 3, 3, 4, ...
+ => frameRate = (9 + 1) * 25 / 32 = 250 / 32 = 7.8125;
+ */
+ errCode = usbvision_write_reg(usbvision, USBVISION_FRM_RATE, frameDrop);
+ return errCode;
+}
+
+
+/*
+ * usbvision_set_compress_params()
+ *
+ */
+
+static int usbvision_set_compress_params(struct usb_usbvision *usbvision)
+{
+ static const char proc[] = "usbvision_set_compresion_params: ";
+ int rc;
+ unsigned char value[6];
+
+ value[0] = 0x0F; // Intra-Compression cycle
+ value[1] = 0x01; // Reg.45 one line per strip
+ value[2] = 0x00; // Reg.46 Force intra mode on all new frames
+ value[3] = 0x00; // Reg.47 FORCE_UP <- 0 normal operation (not force)
+ value[4] = 0xA2; // Reg.48 BUF_THR I'm not sure if this does something in not compressed mode.
+ value[5] = 0x00; // Reg.49 DVI_YUV This has nothing to do with compression
+
+ //catched values for NT1004
+ // value[0] = 0xFF; // Never apply intra mode automatically
+ // value[1] = 0xF1; // Use full frame height for virtual strip width; One line per strip
+ // value[2] = 0x01; // Force intra mode on all new frames
+ // value[3] = 0x00; // Strip size 400 Bytes; do not force up
+ // value[4] = 0xA2; //
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return 0;
+
+ rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
+ USBVISION_OP_CODE,
+ USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_ENDPOINT, 0,
+ (__u16) USBVISION_INTRA_CYC, value, 5, HZ);
+
+ if (rc < 0) {
+ printk(KERN_ERR "%sERROR=%d. USBVISION stopped - "
+ "reconnect or reload driver.\n", proc, rc);
+ return rc;
+ }
+
+ if (usbvision->bridgeType == BRIDGE_NT1004) {
+ value[0] = 20; // PCM Threshold 1
+ value[1] = 12; // PCM Threshold 2
+ value[2] = 255; // Distorsion Threshold inter
+ value[3] = 255; // Distorsion Threshold intra
+ value[4] = 43; // Max Distorsion inter
+ value[5] = 43; // Max Distorsion intra
+ }
+ else {
+ value[0] = 20; // PCM Threshold 1
+ value[1] = 12; // PCM Threshold 2
+ value[2] = 255; // Distorsion Threshold d7-d0
+ value[3] = 0; // Distorsion Threshold d11-d8
+ value[4] = 43; // Max Distorsion d7-d0
+ value[5] = 0; // Max Distorsion d8
+ }
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return 0;
+
+ rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
+ USBVISION_OP_CODE,
+ USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_ENDPOINT, 0,
+ (__u16) USBVISION_PCM_THR1, value, 6, HZ);
+
+ if (rc < 0) {
+ printk(KERN_ERR "%sERROR=%d. USBVISION stopped - "
+ "reconnect or reload driver.\n", proc, rc);
+ return rc;
+ }
+
+
+ return rc;
+}
+
+
+/*
+ * usbvision_set_input()
+ *
+ * Set the input (saa711x, ...) size x y and other misc input params
+ * I've no idea if this parameters are right
+ *
+ */
+static int usbvision_set_input(struct usb_usbvision *usbvision)
+{
+ static const char proc[] = "usbvision_set_input: ";
+ int rc;
+ unsigned char value[8];
+ unsigned char dvi_yuv_value;
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return 0;
+
+ /* Set input format expected from decoder*/
+ if (usbvision_device_data[usbvision->DevModel].Vin_Reg1 >= 0) {
+ value[0] = usbvision_device_data[usbvision->DevModel].Vin_Reg1 & 0xff;
+ } else if(usbvision_device_data[usbvision->DevModel].Codec == CODEC_SAA7113) {
+ /* SAA7113 uses 8 bit output */
+ value[0] = USBVISION_8_422_SYNC;
+ } else {
+ /* I'm sure only about d2-d0 [010] 16 bit 4:2:2 usin sync pulses
+ * as that is how saa7111 is configured */
+ value[0] = USBVISION_16_422_SYNC;
+ /* | USBVISION_VSNC_POL | USBVISION_VCLK_POL);*/
+ }
+
+ rc = usbvision_write_reg(usbvision, USBVISION_VIN_REG1, value[0]);
+ if (rc < 0) {
+ printk(KERN_ERR "%sERROR=%d. USBVISION stopped - "
+ "reconnect or reload driver.\n", proc, rc);
+ return rc;
+ }
+
+
+ if (usbvision->input.std & V4L2_STD_PAL) {
+ value[0] = 0xC0;
+ value[1] = 0x02; //0x02C0 -> 704 Input video line length
+ value[2] = 0x20;
+ value[3] = 0x01; //0x0120 -> 288 Input video n. of lines
+ value[4] = 0x60;
+ value[5] = 0x00; //0x0060 -> 96 Input video h offset
+ value[6] = 0x16;
+ value[7] = 0x00; //0x0016 -> 22 Input video v offset
+ } else if (usbvision->input.std & V4L2_STD_SECAM) {
+ value[0] = 0xC0;
+ value[1] = 0x02; //0x02C0 -> 704 Input video line length
+ value[2] = 0x20;
+ value[3] = 0x01; //0x0120 -> 288 Input video n. of lines
+ value[4] = 0x01;
+ value[5] = 0x00; //0x0001 -> 01 Input video h offset
+ value[6] = 0x01;
+ value[7] = 0x00; //0x0001 -> 01 Input video v offset
+ } else { /* V4L2_STD_NTSC */
+ value[0] = 0xD0;
+ value[1] = 0x02; //0x02D0 -> 720 Input video line length
+ value[2] = 0xF0;
+ value[3] = 0x00; //0x00F0 -> 240 Input video number of lines
+ value[4] = 0x50;
+ value[5] = 0x00; //0x0050 -> 80 Input video h offset
+ value[6] = 0x10;
+ value[7] = 0x00; //0x0010 -> 16 Input video v offset
+ }
+
+ if (usbvision_device_data[usbvision->DevModel].X_Offset >= 0) {
+ value[4]=usbvision_device_data[usbvision->DevModel].X_Offset & 0xff;
+ value[5]=(usbvision_device_data[usbvision->DevModel].X_Offset & 0x0300) >> 8;
+ }
+
+ if (usbvision_device_data[usbvision->DevModel].Y_Offset >= 0) {
+ value[6]=usbvision_device_data[usbvision->DevModel].Y_Offset & 0xff;
+ value[7]=(usbvision_device_data[usbvision->DevModel].Y_Offset & 0x0300) >> 8;
+ }
+
+ rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
+ USBVISION_OP_CODE, /* USBVISION specific code */
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, 0,
+ (__u16) USBVISION_LXSIZE_I, value, 8, HZ);
+ if (rc < 0) {
+ printk(KERN_ERR "%sERROR=%d. USBVISION stopped - "
+ "reconnect or reload driver.\n", proc, rc);
+ return rc;
+ }
+
+
+ dvi_yuv_value = 0x00; /* U comes after V, Ya comes after U/V, Yb comes after Yb */
+
+ if(usbvision_device_data[usbvision->DevModel].Dvi_yuv >= 0){
+ dvi_yuv_value = usbvision_device_data[usbvision->DevModel].Dvi_yuv & 0xff;
+ }
+ else if(usbvision_device_data[usbvision->DevModel].Codec == CODEC_SAA7113) {
+ /* This changes as the fine sync control changes. Further investigation necessary */
+ dvi_yuv_value = 0x06;
+ }
+
+ return (usbvision_write_reg(usbvision, USBVISION_DVI_YUV, dvi_yuv_value));
+}
+
+
+/*
+ * usbvision_set_dram_settings()
+ *
+ * Set the buffer address needed by the usbvision dram to operate
+ * This values has been taken with usbsnoop.
+ *
+ */
+
+static int usbvision_set_dram_settings(struct usb_usbvision *usbvision)
+{
+ int rc;
+ unsigned char value[8];
+
+ if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
+ value[0] = 0x42;
+ value[1] = 0x71;
+ value[2] = 0xff;
+ value[3] = 0x00;
+ value[4] = 0x98;
+ value[5] = 0xe0;
+ value[6] = 0x71;
+ value[7] = 0xff;
+ // UR: 0x0E200-0x3FFFF = 204288 Words (1 Word = 2 Byte)
+ // FDL: 0x00000-0x0E099 = 57498 Words
+ // VDW: 0x0E3FF-0x3FFFF
+ }
+ else {
+ value[0] = 0x42;
+ value[1] = 0x00;
+ value[2] = 0xff;
+ value[3] = 0x00;
+ value[4] = 0x00;
+ value[5] = 0x00;
+ value[6] = 0x00;
+ value[7] = 0xff;
+ }
+ /* These are the values of the address of the video buffer,
+ * they have to be loaded into the USBVISION_DRM_PRM1-8
+ *
+ * Start address of video output buffer for read: drm_prm1-2 -> 0x00000
+ * End address of video output buffer for read: drm_prm1-3 -> 0x1ffff
+ * Start address of video frame delay buffer: drm_prm1-4 -> 0x20000
+ * Only used in compressed mode
+ * End address of video frame delay buffer: drm_prm1-5-6 -> 0x3ffff
+ * Only used in compressed mode
+ * Start address of video output buffer for write: drm_prm1-7 -> 0x00000
+ * End address of video output buffer for write: drm_prm1-8 -> 0x1ffff
+ */
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return 0;
+
+ rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
+ USBVISION_OP_CODE, /* USBVISION specific code */
+ USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_ENDPOINT, 0,
+ (__u16) USBVISION_DRM_PRM1, value, 8, HZ);
+
+ if (rc < 0) {
+ err("%sERROR=%d", __FUNCTION__, rc);
+ return rc;
+ }
+
+ /* Restart the video buffer logic */
+ if ((rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, USBVISION_RES_UR |
+ USBVISION_RES_FDL | USBVISION_RES_VDW)) < 0)
+ return rc;
+ rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, 0x00);
+
+ return rc;
+}
+
+/*
+ * ()
+ *
+ * Power on the device, enables suspend-resume logic
+ * & reset the isoc End-Point
+ *
+ */
+
+static int usbvision_power_on(struct usb_usbvision *usbvision)
+{
+ int errCode = 0;
+
+ PDEBUG(DBG_FUNC, "");
+
+ usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN);
+ usbvision_write_reg(usbvision, USBVISION_PWR_REG,
+ USBVISION_SSPND_EN | USBVISION_RES2);
+ usbvision_write_reg(usbvision, USBVISION_PWR_REG,
+ USBVISION_SSPND_EN | USBVISION_PWR_VID);
+ errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG,
+ USBVISION_SSPND_EN | USBVISION_PWR_VID | USBVISION_RES2);
+ if (errCode == 1) {
+ usbvision->power = 1;
+ }
+ PDEBUG(DBG_FUNC, "%s: errCode %d", (errCode<0)?"ERROR":"power is on", errCode);
+ return errCode;
+}
+
+
+static void usbvision_powerOffTimer(unsigned long data)
+{
+ struct usb_usbvision *usbvision = (void *) data;
+
+ PDEBUG(DBG_FUNC, "");
+ del_timer(&usbvision->powerOffTimer);
+ INIT_WORK(&usbvision->powerOffWork, call_usbvision_power_off, usbvision);
+ (void) schedule_work(&usbvision->powerOffWork);
+
+}
+
+
+/*
+ * usbvision_begin_streaming()
+ * Sure you have to put bit 7 to 0, if not incoming frames are droped, but no
+ * idea about the rest
+ */
+static int usbvision_begin_streaming(struct usb_usbvision *usbvision)
+{
+ int errCode = 0;
+
+ if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
+ usbvision_init_compression(usbvision);
+ }
+ errCode = usbvision_write_reg(usbvision, USBVISION_VIN_REG2, USBVISION_NOHVALID |
+ usbvision->Vin_Reg2_Preset);
+ return errCode;
+}
+
+/*
+ * usbvision_restart_isoc()
+ * Not sure yet if touching here PWR_REG make loose the config
+ */
+
+static int usbvision_restart_isoc(struct usb_usbvision *usbvision)
+{
+ int ret;
+
+ if (
+ (ret =
+ usbvision_write_reg(usbvision, USBVISION_PWR_REG,
+ USBVISION_SSPND_EN | USBVISION_PWR_VID)) < 0)
+ return ret;
+ if (
+ (ret =
+ usbvision_write_reg(usbvision, USBVISION_PWR_REG,
+ USBVISION_SSPND_EN | USBVISION_PWR_VID |
+ USBVISION_RES2)) < 0)
+ return ret;
+ if (
+ (ret =
+ usbvision_write_reg(usbvision, USBVISION_VIN_REG2,
+ USBVISION_KEEP_BLANK | USBVISION_NOHVALID |
+ usbvision->Vin_Reg2_Preset)) < 0) return ret;
+
+ /* TODO: schedule timeout */
+ while ((usbvision_read_reg(usbvision, USBVISION_STATUS_REG) && 0x01) != 1);
+
+ return 0;
+}
+
+static int usbvision_audio_on(struct usb_usbvision *usbvision)
+{
+ if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, usbvision->AudioChannel) < 0) {
+ printk(KERN_ERR "usbvision_audio_on: can't wirte reg\n");
+ return -1;
+ }
+ DEBUG(printk(KERN_DEBUG "usbvision_audio_on: channel %d\n", usbvision->AudioChannel));
+ usbvision->AudioMute = 0;
+ return 0;
+}
+
+static int usbvision_audio_mute(struct usb_usbvision *usbvision)
+{
+ if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, 0x03) < 0) {
+ printk(KERN_ERR "usbvision_audio_mute: can't wirte reg\n");
+ return -1;
+ }
+ DEBUG(printk(KERN_DEBUG "usbvision_audio_mute: audio mute\n"));
+ usbvision->AudioMute = 1;
+ return 0;
+}
+
+static int usbvision_audio_off(struct usb_usbvision *usbvision)
+{
+ if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, USBVISION_AUDIO_MUTE) < 0) {
+ printk(KERN_ERR "usbvision_audio_off: can't wirte reg\n");
+ return -1;
+ }
+ DEBUG(printk(KERN_DEBUG "usbvision_audio_off: audio off\n"));
+ usbvision->AudioMute = 0;
+ usbvision->AudioChannel = USBVISION_AUDIO_MUTE;
+ return 0;
+}
+
+static int usbvision_set_audio(struct usb_usbvision *usbvision, int AudioChannel)
+{
+ if (!usbvision->AudioMute) {
+ if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, AudioChannel) < 0) {
+ printk(KERN_ERR "usbvision_set_audio: can't write iopin register for audio switching\n");
+ return -1;
+ }
+ }
+ DEBUG(printk(KERN_DEBUG "usbvision_set_audio: channel %d\n", AudioChannel));
+ usbvision->AudioChannel = AudioChannel;
+ return 0;
+}
+
+static int usbvision_setup(struct usb_usbvision *usbvision)
+{
+ usbvision_set_video_format(usbvision, isocMode);
+ usbvision_set_dram_settings(usbvision);
+ usbvision_set_compress_params(usbvision);
+ usbvision_set_input(usbvision);
+ usbvision_set_output(usbvision, MAX_USB_WIDTH, MAX_USB_HEIGHT);
+ usbvision_restart_isoc(usbvision);
+
+ /* cosas del PCM */
+ return USBVISION_IS_OPERATIONAL(usbvision);
+}
+
+
+/*
+ * usbvision_init_isoc()
+ *
+ */
+static int usbvision_init_isoc(struct usb_usbvision *usbvision)
+{
+ struct usb_device *dev = usbvision->dev;
+ int bufIdx, errCode, regValue;
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return -EFAULT;
+
+ usbvision->curFrameNum = -1;
+ scratch_reset(usbvision);
+
+ /* Alternate interface 1 is is the biggest frame size */
+ errCode = usb_set_interface(dev, usbvision->iface, usbvision->ifaceAltActive);
+ if (errCode < 0) {
+ usbvision->last_error = errCode;
+ return -EBUSY;
+ }
+
+ regValue = (16 - usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F;
+ usbvision->isocPacketSize = (regValue == 0) ? 0 : (regValue * 64) - 1;
+ PDEBUG(DBG_ISOC, "ISO Packet Length:%d", usbvision->isocPacketSize);
+
+ usbvision->usb_bandwidth = regValue >> 1;
+ PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", usbvision->usb_bandwidth);
+
+
+
+ /* We double buffer the Iso lists */
+
+ for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) {
+ int j, k;
+ struct urb *urb;
+
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+ urb = usb_alloc_urb(USBVISION_URB_FRAMES);
+ #else
+ urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
+ #endif
+ if (urb == NULL) {
+ err("%s: usb_alloc_urb() failed", __FUNCTION__);
+ return -ENOMEM;
+ }
+ usbvision->sbuf[bufIdx].urb = urb;
+ urb->dev = dev;
+ urb->context = usbvision;
+ urb->pipe = usb_rcvisocpipe(dev, usbvision->video_endp);
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+ urb->transfer_flags = USB_ISO_ASAP;
+ #else
+ urb->transfer_flags = URB_ISO_ASAP;
+ urb->interval = 1;
+ #endif
+ urb->transfer_buffer = usbvision->sbuf[bufIdx].data;
+ urb->complete = usbvision_isocIrq;
+ urb->number_of_packets = USBVISION_URB_FRAMES;
+ urb->transfer_buffer_length =
+ usbvision->isocPacketSize * USBVISION_URB_FRAMES;
+ for (j = k = 0; j < USBVISION_URB_FRAMES; j++,
+ k += usbvision->isocPacketSize) {
+ urb->iso_frame_desc[j].offset = k;
+ urb->iso_frame_desc[j].length = usbvision->isocPacketSize;
+ }
+ }
+
+
+ /* Submit all URBs */
+ for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) {
+ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+ errCode = usb_submit_urb(usbvision->sbuf[bufIdx].urb);
+ #else
+ errCode = usb_submit_urb(usbvision->sbuf[bufIdx].urb, GFP_KERNEL);
+ #endif
+ if (errCode) {
+ err("%s: usb_submit_urb(%d) failed: error %d", __FUNCTION__, bufIdx, errCode);
+ }
+ }
+
+ usbvision->streaming = 1;
+ PDEBUG(DBG_ISOC, "%s: streaming=1 usbvision->video_endp=$%02x", __FUNCTION__, usbvision->video_endp);
+ return 0;
+}
+
+/*
+ * usbvision_stop_isoc()
+ *
+ * This procedure stops streaming and deallocates URBs. Then it
+ * activates zero-bandwidth alt. setting of the video interface.
+ *
+ */
+static void usbvision_stop_isoc(struct usb_usbvision *usbvision)
+{
+ int bufIdx, errCode, regValue;
+
+ if (!usbvision->streaming || (usbvision->dev == NULL))
+ return;
+
+ /* Unschedule all of the iso td's */
+ for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) {
+ usb_kill_urb(usbvision->sbuf[bufIdx].urb);
+ usb_free_urb(usbvision->sbuf[bufIdx].urb);
+ usbvision->sbuf[bufIdx].urb = NULL;
+ }
+
+
+ PDEBUG(DBG_ISOC, "%s: streaming=0\n", __FUNCTION__);
+ usbvision->streaming = 0;
+
+
+ if (!usbvision->remove_pending) {
+
+ /* Set packet size to 0 */
+ errCode = usb_set_interface(usbvision->dev, usbvision->iface,
+ usbvision->ifaceAltInactive);
+ if (errCode < 0) {
+ err("%s: usb_set_interface() failed: error %d", __FUNCTION__, errCode);
+ usbvision->last_error = errCode;
+ }
+ regValue = (16 - usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F;
+ usbvision->isocPacketSize = (regValue == 0) ? 0 : (regValue * 64) - 1;
+ PDEBUG(DBG_ISOC, "ISO Packet Length:%d", usbvision->isocPacketSize);
+
+ usbvision->usb_bandwidth = regValue >> 1;
+ PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", usbvision->usb_bandwidth);
+ }
+}
+
+/*
+ * usbvision_new_frame()
+ *
+ */
+static int usbvision_new_frame(struct usb_usbvision *usbvision, int framenum)
+{
+ struct usbvision_frame *frame;
+ int n; //byhec , width, height;
+
+ /* If we're not grabbing a frame right now and the other frame is */
+ /* ready to be grabbed into, then use it instead */
+ if (usbvision->curFrameNum != -1)
+ return 0;
+
+ n = (framenum - 1 + USBVISION_NUMFRAMES) % USBVISION_NUMFRAMES;
+ if (usbvision->frame[n].grabstate == FrameState_Ready)
+ framenum = n;
+
+ frame = &usbvision->frame[framenum];
+
+ frame->grabstate = FrameState_Grabbing;
+ frame->scanstate = ScanState_Scanning;
+ frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
+ usbvision->curFrameNum = framenum;
+
+ /*
+ * Normally we would want to copy previous frame into the current one
+ * before we even start filling it with data; this allows us to stop
+ * filling at any moment; top portion of the frame will be new and
+ * bottom portion will stay as it was in previous frame. If we don't
+ * do that then missing chunks of video stream will result in flickering
+ * portions of old data whatever it was before.
+ *
+ * If we choose not to copy previous frame (to, for example, save few
+ * bus cycles - the frame can be pretty large!) then we have an option
+ * to clear the frame before using. If we experience losses in this
+ * mode then missing picture will be black (flickering).
+ *
+ * Finally, if user chooses not to clean the current frame before
+ * filling it with data then the old data will be visible if we fail
+ * to refill entire frame with new data.
+ */
+ if (!(flags & FLAGS_SEPARATE_FRAMES)) {
+ /* This copies previous frame into this one to mask losses */
+ memmove(frame->data, usbvision->frame[1 - framenum].data,
+ MAX_FRAME_SIZE);
+ } else {
+ if (flags & FLAGS_CLEAN_FRAMES) {
+ /*This provides a "clean" frame but slows things down */
+ memset(frame->data, 0, MAX_FRAME_SIZE);
+ }
+ }
+ return 0;
+}
+
+static int usbvision_muxsel(struct usb_usbvision *usbvision, int channel, int norm)
+{
+ int mode[4];
+ int audio[]= {1, 0, 0, 0};
+ struct v4l2_routing route;
+ //channel 0 is TV with audiochannel 1 (tuner mono)
+ //channel 1 is Composite with audio channel 0 (line in)
+ //channel 2 is S-Video with audio channel 0 (line in)
+ //channel 3 is additional video inputs to the device with audio channel 0 (line in)
+
+ RESTRICT_TO_RANGE(channel, 0, usbvision->video_inputs);
+ /* set the new video norm */
+ if (usbvision->input.std != norm) {
+ v4l2_std_id video_command = norm;
+
+ route.input = SAA7115_COMPOSITE1;
+ call_i2c_clients(usbvision, VIDIOC_INT_S_VIDEO_ROUTING,&route);
+ call_i2c_clients(usbvision, VIDIOC_S_STD, &video_command);
+ usbvision->input.std = norm;
+ call_i2c_clients(usbvision, VIDIOC_S_INPUT, &usbvision->input.index); //set norm in tuner
+ }
+
+ // set the new channel
+ // Regular USB TV Tuners -> channel: 0 = Television, 1 = Composite, 2 = S-Video
+ // Four video input devices -> channel: 0 = Chan White, 1 = Chan Green, 2 = Chan Yellow, 3 = Chan Red
+
+ switch (usbvision_device_data[usbvision->DevModel].Codec) {
+ case CODEC_SAA7113:
+ if (SwitchSVideoInput) { // To handle problems with S-Video Input for some devices. Use SwitchSVideoInput parameter when loading the module.
+ mode[2] = 1;
+ }
+ else {
+ mode[2] = 7;
+ }
+ if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
+ mode[0] = 0; mode[1] = 2; mode[3] = 3; // Special for four input devices
+ }
+ else {
+ mode[0] = 0; mode[1] = 2; //modes for regular saa7113 devices
+ }
+ break;
+ case CODEC_SAA7111:
+ mode[0] = 0; mode[1] = 1; mode[2] = 7; //modes for saa7111
+ break;
+ default:
+ mode[0] = 0; mode[1] = 1; mode[2] = 7; //default modes
+ }
+ route.input = mode[channel];
+ call_i2c_clients(usbvision, VIDIOC_INT_S_VIDEO_ROUTING,&route);
+ usbvision->channel = channel;
+ usbvision_set_audio(usbvision, audio[channel]);
+ return 0;
+}
+
+
+/*
+ * usbvision_open()
+ *
+ * This is part of Video 4 Linux API. The driver can be opened by one
+ * client only (checks internal counter 'usbvision->user'). The procedure
+ * then allocates buffers needed for video processing.
+ *
+ */
+static int usbvision_v4l2_open(struct inode *inode, struct file *file)
+{
+ struct video_device *dev = video_devdata(file);
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
+ const int sb_size = USBVISION_URB_FRAMES * USBVISION_MAX_ISOC_PACKET_SIZE;
+ int i, errCode = 0;
+
+ PDEBUG(DBG_IO, "open");
+
+
+ if (timer_pending(&usbvision->powerOffTimer)) {
+ del_timer(&usbvision->powerOffTimer);
+ }
+
+ if (usbvision->user)
+ errCode = -EBUSY;
+ else {
+ /* Clean pointers so we know if we allocated something */
+ for (i = 0; i < USBVISION_NUMSBUF; i++)
+ usbvision->sbuf[i].data = NULL;
+
+ /* Allocate memory for the frame buffers */
+ usbvision->max_frame_size = MAX_FRAME_SIZE;
+ usbvision->fbuf_size = USBVISION_NUMFRAMES * usbvision->max_frame_size;
+ usbvision->fbuf = usbvision_rvmalloc(usbvision->fbuf_size);
+ usbvision->scratch = vmalloc(scratch_buf_size);
+ scratch_reset(usbvision);
+ if ((usbvision->fbuf == NULL) || (usbvision->scratch == NULL)) {
+ err("%s: unable to allocate %d bytes for fbuf and %d bytes for scratch",
+ __FUNCTION__, usbvision->fbuf_size, scratch_buf_size);
+ errCode = -ENOMEM;
+ }
+ else {
+ /* Allocate all buffers */
+ for (i = 0; i < USBVISION_NUMFRAMES; i++) {
+ usbvision->frame[i].grabstate = FrameState_Unused;
+ usbvision->frame[i].data = usbvision->fbuf +
+ i * MAX_FRAME_SIZE;
+ /*
+ * Set default sizes in case IOCTL
+ * (VIDIOCMCAPTURE)
+ * is not used (using read() instead).
+ */
+ usbvision->stretch_width = 1;
+ usbvision->stretch_height = 1;
+ usbvision->frame[i].width = usbvision->curwidth;
+ usbvision->frame[i].height = usbvision->curheight;
+ usbvision->frame[i].bytes_read = 0;
+ }
+ if (dga) { //set default for DGA
+ usbvision->overlay_frame.grabstate = FrameState_Unused;
+ usbvision->overlay_frame.scanstate = ScanState_Scanning;
+ usbvision->overlay_frame.data = NULL;
+ usbvision->overlay_frame.width = usbvision->curwidth;
+ usbvision->overlay_frame.height = usbvision->curheight;
+ usbvision->overlay_frame.bytes_read = 0;
+ }
+ for (i = 0; i < USBVISION_NUMSBUF; i++) {
+ usbvision->sbuf[i].data = kzalloc(sb_size, GFP_KERNEL);
+ if (usbvision->sbuf[i].data == NULL) {
+ err("%s: unable to allocate %d bytes for sbuf", __FUNCTION__, sb_size);
+ errCode = -ENOMEM;
+ break;
+ }
+ }
+ }
+ if ((!errCode) && (usbvision->isocMode==ISOC_MODE_COMPRESS)) {
+ int IFB_size = MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * 3 / 2;
+ usbvision->IntraFrameBuffer = vmalloc(IFB_size);
+ if (usbvision->IntraFrameBuffer == NULL) {
+ err("%s: unable to allocate %d for compr. frame buffer", __FUNCTION__, IFB_size);
+ errCode = -ENOMEM;
+ }
+
+ }
+ if (errCode) {
+ /* Have to free all that memory */
+ if (usbvision->fbuf != NULL) {
+ usbvision_rvfree(usbvision->fbuf, usbvision->fbuf_size);
+ usbvision->fbuf = NULL;
+ }
+ if (usbvision->scratch != NULL) {
+ vfree(usbvision->scratch);
+ usbvision->scratch = NULL;
+ }
+ for (i = 0; i < USBVISION_NUMSBUF; i++) {
+ if (usbvision->sbuf[i].data != NULL) {
+ kfree(usbvision->sbuf[i].data);
+ usbvision->sbuf[i].data = NULL;
+ }
+ }
+ if (usbvision->IntraFrameBuffer != NULL) {
+ vfree(usbvision->IntraFrameBuffer);
+ usbvision->IntraFrameBuffer = NULL;
+ }
+ }
+ }
+
+ /* If so far no errors then we shall start the camera */
+ if (!errCode) {
+ down(&usbvision->lock);
+ if (usbvision->power == 0) {
+ usbvision_power_on(usbvision);
+ usbvision_init_i2c(usbvision);
+ }
+
+ /* Send init sequence only once, it's large! */
+ if (!usbvision->initialized) {
+ int setup_ok = 0;
+ setup_ok = usbvision_setup(usbvision);
+ if (setup_ok)
+ usbvision->initialized = 1;
+ else
+ errCode = -EBUSY;
+ }
+
+ if (!errCode) {
+ usbvision_begin_streaming(usbvision);
+ errCode = usbvision_init_isoc(usbvision);
+ usbvision->user++;
+ }
+ else {
+ if (PowerOnAtOpen) {
+ usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
+ usbvision_power_off(usbvision);
+ usbvision->initialized = 0;
+ }
+ }
+ up(&usbvision->lock);
+ }
+
+ if (errCode) {
+ }
+
+ PDEBUG(DBG_IO, "success");
+ return errCode;
+}
+
+/*
+ * usbvision_v4l2_close()
+ *
+ * This is part of Video 4 Linux API. The procedure
+ * stops streaming and deallocates all buffers that were earlier
+ * allocated in usbvision_v4l2_open().
+ *
+ */
+static int usbvision_v4l2_close(struct inode *inode, struct file *file)
+{
+ struct video_device *dev = video_devdata(file);
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
+ int i;
+
+ PDEBUG(DBG_IO, "close");
+ down(&usbvision->lock);
+
+ usbvision_audio_off(usbvision);
+ usbvision_restart_isoc(usbvision);
+ usbvision_stop_isoc(usbvision);
+
+ if (usbvision->IntraFrameBuffer != NULL) {
+ vfree(usbvision->IntraFrameBuffer);
+ usbvision->IntraFrameBuffer = NULL;
+ }
+
+ usbvision_rvfree(usbvision->fbuf, usbvision->fbuf_size);
+ vfree(usbvision->scratch);
+ for (i = 0; i < USBVISION_NUMSBUF; i++)
+ kfree(usbvision->sbuf[i].data);
+
+ usbvision->user--;
+
+ if (PowerOnAtOpen) {
+ mod_timer(&usbvision->powerOffTimer, jiffies + USBVISION_POWEROFF_TIME);
+ usbvision->initialized = 0;
+ }
+
+ up(&usbvision->lock);
+
+ if (usbvision->remove_pending) {
+ info("%s: Final disconnect", __FUNCTION__);
+ usbvision_release(usbvision);
+ }
+
+ PDEBUG(DBG_IO, "success");
+
+
+ return 0;
+}
+
+
+/*
+ * usbvision_ioctl()
+ *
+ * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
+ *
+ */
+static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, void *arg)
+{
+ struct video_device *dev = video_devdata(file);
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return -EFAULT;
+
+ switch (cmd) {
+ case UVIOCSREG:
+ {
+ struct usbvision_reg *usbvision_reg = arg;
+ int errCode;
+
+ errCode = usbvision_write_reg(usbvision, usbvision_reg->addr, usbvision_reg->value);
+
+ if (errCode < 0) {
+ err("%s: UVIOCSREG failed: error %d", __FUNCTION__, errCode);
+ }
+ else {
+ PDEBUG(DBG_IOCTL, "UVIOCSREG addr=0x%02X, value=0x%02X",
+ usbvision_reg->addr, usbvision_reg->value);
+ errCode = 0;
+ }
+ return errCode;
+ }
+ case UVIOCGREG:
+ {
+ struct usbvision_reg *usbvision_reg = arg;
+ int errCode;
+
+ errCode = usbvision_read_reg(usbvision, usbvision_reg->addr);
+
+ if (errCode < 0) {
+ err("%s: UVIOCGREG failed: error %d", __FUNCTION__, errCode);
+ }
+ else {
+ usbvision_reg->value=(unsigned char)errCode;
+ PDEBUG(DBG_IOCTL, "UVIOCGREG addr=0x%02X, value=0x%02X",
+ usbvision_reg->addr, usbvision_reg->value);
+ errCode = 0; // No error
+ }
+ return errCode;
+ }
+ case VIDIOC_QUERYCAP:
+ {
+ struct v4l2_capability *vc=arg;
+ *vc = usbvision->vcap;
+ PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP");
+ return 0;
+ }
+ case VIDIOC_ENUMINPUT:
+ {
+ struct v4l2_input *vi = arg;
+ int chan;
+
+ if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
+ return -EINVAL;
+ if (usbvision->have_tuner) {
+ chan = vi->index;
+ }
+ else {
+ chan = vi->index + 1; //skip Television string
+ }
+ switch(chan) {
+ case 0:
+ if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
+ strcpy(vi->name, "White Video Input");
+ }
+ else {
+ strcpy(vi->name, "Television");
+ vi->type = V4L2_INPUT_TYPE_TUNER;
+ vi->audioset = 1;
+ vi->tuner = chan;
+ vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM;
+ }
+ break;
+ case 1:
+ vi->type = V4L2_INPUT_TYPE_CAMERA;
+ if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
+ strcpy(vi->name, "Green Video Input");
+ }
+ else {
+ strcpy(vi->name, "Composite Video Input");
+ }
+ vi->std = V4L2_STD_PAL;
+ break;
+ case 2:
+ vi->type = V4L2_INPUT_TYPE_CAMERA;
+ if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
+ strcpy(vi->name, "Yellow Video Input");
+ }
+ else {
+ strcpy(vi->name, "S-Video Input");
+ }
+ vi->std = V4L2_STD_PAL;
+ break;
+ case 3:
+ vi->type = V4L2_INPUT_TYPE_CAMERA;
+ strcpy(vi->name, "Red Video Input");
+ vi->std = V4L2_STD_PAL;
+ break;
+ }
+ PDEBUG(DBG_IOCTL, "VIDIOC_ENUMINPUT name=%s:%d tuners=%d type=%d norm=%x", vi->name, vi->index, vi->tuner,vi->type,(int)vi->std);
+ return 0;
+ }
+ case VIDIOC_ENUMSTD:
+ {
+ struct v4l2_standard *vs = arg;
+ switch(vs->index) {
+ case 0:
+ vs->id = V4L2_STD_PAL;
+ strcpy(vs->name,"PAL");
+ vs->frameperiod.numerator = 1;
+ vs->frameperiod.denominator = 25;
+ vs->framelines = 625;
+ break;
+ case 1:
+ vs->id = V4L2_STD_NTSC;
+ strcpy(vs->name,"NTSC");
+ vs->frameperiod.numerator = 1001;
+ vs->frameperiod.denominator = 30000;
+ vs->framelines = 525;
+ break;
+ case 2:
+ vs->id = V4L2_STD_SECAM;
+ strcpy(vs->name,"SECAM");
+ vs->frameperiod.numerator = 1;
+ vs->frameperiod.denominator = 25;
+ vs->framelines = 625;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+ }
+ case VIDIOC_G_INPUT:
+ {
+ int *input = arg;
+ *input = usbvision->input.index;
+ return 0;
+ }
+ case VIDIOC_S_INPUT:
+ {
+ int *input = arg;
+ if ((*input >= usbvision->video_inputs) || (*input < 0) )
+ return -EINVAL;
+ usbvision->input.index = *input;
+
+ down(&usbvision->lock);
+ usbvision_muxsel(usbvision, usbvision->input.index, usbvision->input.std);
+ usbvision_set_input(usbvision);
+ usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight);
+ up(&usbvision->lock);
+ return 0;
+ }
+ case VIDIOC_G_STD:
+ {
+ v4l2_std_id *std = arg;
+ *std = usbvision->input.std;
+ PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%x", (unsigned)*std);
+ return 0;
+ }
+ case VIDIOC_S_STD:
+ {
+ v4l2_std_id *std = arg;
+
+ down(&usbvision->lock);
+ usbvision_muxsel(usbvision, usbvision->input.index, *std);
+ usbvision_set_input(usbvision);
+ usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight);
+ up(&usbvision->lock);
+
+ usbvision->input.std = *std;
+ PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%x", (unsigned)*std);
+ return 0;
+ }
+ case VIDIOC_G_TUNER:
+ {
+ struct v4l2_tuner *vt = arg;
+ struct v4l2_tuner status;
+
+ if (!usbvision->have_tuner || vt->index) // Only tuner 0
+ return -EINVAL;
+ strcpy(vt->name, "Television");
+ vt->type = V4L2_TUNER_ANALOG_TV;
+ vt->capability = V4L2_TUNER_CAP_NORM;
+ vt->rangelow = 0;
+ vt->rangehigh = ~0;
+ vt->audmode = V4L2_TUNER_MODE_MONO;
+ vt->rxsubchans = V4L2_TUNER_SUB_MONO;
+ call_i2c_clients(usbvision,VIDIOC_G_TUNER,&status);
+ vt->signal = status.signal;
+
+ PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER");
+ return 0;
+ }
+ case VIDIOC_S_TUNER:
+ {
+ struct v4l2_tuner *vt = arg;
+
+ // Only no or one tuner for now
+ if (!usbvision->have_tuner || vt->index)
+ return -EINVAL;
+ // FIXME vt->audmode Radio mode (STEREO/MONO/...)
+ // vt->reserved Radio freq
+ // usbvision_muxsel(usbvision, vt->index, vt->mode);
+ PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER");
+ return 0;
+ }
+ case VIDIOC_G_FREQUENCY:
+ {
+ struct v4l2_frequency *freq = arg;
+ freq->tuner = 0; // Only one tuner
+ freq->type = V4L2_TUNER_ANALOG_TV;
+ freq->frequency = usbvision->freq;
+ PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
+ return 0;
+ }
+ case VIDIOC_S_FREQUENCY:
+ {
+ struct v4l2_frequency *freq = arg;
+ usbvision->freq = freq->frequency;
+ call_i2c_clients(usbvision, cmd, freq);
+ PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
+ return 0;
+ }
+ case VIDIOC_G_AUDIO:
+ {
+ struct v4l2_audio *v = arg;
+ memset(v,0, sizeof(v));
+ strcpy(v->name, "TV");
+ PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO");
+ // FIXME: no more processings ???
+ return 0;
+ }
+ case VIDIOC_S_AUDIO:
+ {
+ struct v4l2_audio *v = arg;
+ if(v->index) {
+ return -EINVAL;
+ }
+ PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO");
+ // FIXME: void function ???
+ return 0;
+ }
+ case VIDIOC_QUERYCTRL:
+ {
+ struct v4l2_queryctrl *qc = arg;
+ switch(qc->id) {
+ case V4L2_CID_BRIGHTNESS:
+ case V4L2_CID_HUE:
+ case V4L2_CID_SATURATION:
+ case V4L2_CID_CONTRAST:
+ case V4L2_CID_AUDIO_VOLUME:
+ case V4L2_CID_AUDIO_MUTE:
+ return v4l2_ctrl_query_fill_std(qc);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+ }
+ case VIDIOC_G_CTRL:
+ {
+ struct v4l2_control *ctrl = arg;
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ ctrl->value = usbvision->brightness;
+ break;
+ case V4L2_CID_CONTRAST:
+ ctrl->value = usbvision->contrast;
+ break;
+ case V4L2_CID_SATURATION:
+ ctrl->value = usbvision->saturation;
+ break;
+ case V4L2_CID_HUE:
+ ctrl->value = usbvision->hue;
+ break;
+ case V4L2_CID_AUDIO_VOLUME:
+ /* ctrl->value = usbvision->volume; */
+ break;
+ case V4L2_CID_AUDIO_MUTE:
+ ctrl->value = usbvision->AudioMute;
+ break;
+ default:
+ return -EINVAL;
+ }
+ PDEBUG(DBG_IOCTL, "VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
+ return 0;
+ }
+ case VIDIOC_S_CTRL:
+ {
+ struct v4l2_control *ctrl = arg;
+ PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value);
+ call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
+ return 0;
+ }
+ case VIDIOC_REQBUFS:
+ {
+ struct v4l2_requestbuffers *vr = arg;
+ // FIXME : normally we allocate the requested number of buffers.
+ // this driver allocates statically the buffers.
+ vr->count = 2;
+ if(vr->memory != V4L2_MEMORY_MMAP)
+ return -EINVAL;
+ return 0;
+ }
+ case VIDIOC_QUERYBUF:
+ {
+ struct v4l2_buffer *vb = arg;
+ struct usbvision_frame *frame;
+
+ // FIXME : works only on VIDEO_CAPTURE MODE, MMAP.
+ if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
+ return -EINVAL;
+ }
+ if(vb->index>1) {
+ return -EINVAL;
+ }
+ vb->flags = 0;
+ frame = &usbvision->frame[vb->index];
+ if(frame->grabstate == FrameState_Grabbing)
+ vb->flags |= V4L2_BUF_FLAG_QUEUED;
+ if(frame->grabstate >= FrameState_Done)
+ vb->flags |= V4L2_BUF_FLAG_DONE;
+ if(frame->grabstate == FrameState_Unused)
+ vb->flags |= V4L2_BUF_FLAG_MAPPED;
+ vb->memory = V4L2_MEMORY_MMAP;
+ if(vb->index == 0) {
+ vb->m.offset = 0;
+ }
+ else {
+ vb->m.offset = MAX_FRAME_SIZE;
+ }
+ vb->length = MAX_FRAME_SIZE;
+ vb->timestamp = usbvision->frame[vb->index].timestamp;
+ vb->sequence = usbvision->frame_num;
+ return 0;
+ }
+ case VIDIOC_QBUF: // VIDIOCMCAPTURE + VIDIOCSYNC
+ {
+ struct v4l2_buffer *vb = arg;
+ struct usbvision_frame *frame;
+
+ // FIXME : works only on VIDEO_CAPTURE MODE, MMAP.
+ if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
+ return -EINVAL;
+ }
+ if(vb->index>1) {
+ return -EINVAL;
+ }
+
+ frame = &usbvision->frame[vb->index];
+
+ if (frame->grabstate == FrameState_Grabbing) {
+ return -EBUSY;
+ }
+
+ usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight);
+
+ /* Mark it as ready */
+ frame->grabstate = FrameState_Ready;
+ vb->flags &= ~V4L2_BUF_FLAG_DONE;
+
+ /* set v4l2_format index */
+ frame->v4l2_format = usbvision->palette;
+
+ return usbvision_new_frame(usbvision, vb->index);
+ }
+ case VIDIOC_DQBUF:
+ {
+ struct v4l2_buffer *vb = arg;
+ int errCode = 0;
+
+ DECLARE_WAITQUEUE(wait, current);
+ // FIXME : not the proper way to get the last filled frame
+ vb->index=-1;
+ if(usbvision->curFrameNum != -1) vb->index=usbvision->curFrameNum;
+ else {
+ if(usbvision->frame[1].grabstate >= FrameState_Done)
+ vb->index = 1;
+ else if(usbvision->frame[0].grabstate >= FrameState_Done)
+ vb->index = 0;
+ // If no FRAME_DONE, look for a FRAME_GRABBING state.
+ // See if a frame is in process (grabbing), then use it.
+ if (vb->index == -1) {
+ if (usbvision->frame[1].grabstate == FrameState_Grabbing)
+ vb->index = 1;
+ else if (usbvision->frame[0].grabstate == FrameState_Grabbing)
+ vb->index = 0;
+ }
+ }
+ if (vb->index == -1)
+ return -EINVAL;
+
+ PDEBUG(DBG_IOCTL, "VIDIOC_DQBUF frame=%d, grabstate=%d",
+ vb->index, usbvision->frame[vb->index].grabstate);
+
+ switch (usbvision->frame[vb->index].grabstate) {
+ case FrameState_Unused:
+ errCode = -EINVAL;
+ break;
+ case FrameState_Grabbing:
+ add_wait_queue(&usbvision->frame[vb->index].wq, &wait);
+ current->state = TASK_INTERRUPTIBLE;
+ while (usbvision->frame[vb->index].grabstate == FrameState_Grabbing) {
+ schedule();
+ if (signal_pending(current)) {
+ remove_wait_queue(&usbvision->frame[vb->index].wq, &wait);
+ current->state = TASK_RUNNING;
+ return -EINTR;
+ }
+ }
+ remove_wait_queue(&usbvision->frame[vb->index].wq, &wait);
+ current->state = TASK_RUNNING;
+ case FrameState_Ready:
+ case FrameState_Error:
+ case FrameState_Done:
+ errCode = (usbvision->frame[vb->index].grabstate == FrameState_Error) ? -EIO : 0;
+ vb->memory = V4L2_MEMORY_MMAP;
+ vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE;
+ vb->sequence = usbvision->frame[vb->index].sequence;
+ usbvision->frame[vb->index].grabstate = FrameState_Unused;
+ break;
+ }
+
+ usbvision->frame[vb->index].grabstate = FrameState_Unused;
+ return errCode;
+ }
+ case VIDIOC_STREAMON:
+ {
+ int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
+ return 0;
+ }
+ case VIDIOC_STREAMOFF:
+ {
+ int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ down(&usbvision->lock);
+ // Stop all video streamings
+ call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
+ usbvision->frame_num = -1;
+ usbvision->frame[0].grabstate = FrameState_Unused;
+ usbvision->frame[1].grabstate = FrameState_Unused;
+ up(&usbvision->lock);
+ return 0;
+ }
+ case VIDIOC_G_FBUF:
+ {
+ struct v4l2_framebuffer *vb = arg;
+
+ if (dga) {
+ *vb = usbvision->vid_buf;
+ }
+ else {
+ memset(vb, 0, sizeof(vb)); //dga not supported, not used
+ }
+ PDEBUG(DBG_IOCTL, "VIDIOC_G_FBUF base=%p, width=%d, height=%d, pixelformat=%d, bpl=%d",
+ vb->base, vb->fmt.width, vb->fmt.height, vb->fmt.pixelformat,vb->fmt.bytesperline);
+ return 0;
+ }
+ case VIDIOC_S_FBUF:
+ {
+ struct v4l2_framebuffer *vb = arg;
+ int formatIdx;
+
+ if (dga == 0) {
+ return -EINVAL;
+ }
+
+ if(!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_ADMIN)) {
+ return -EPERM;
+ }
+
+ PDEBUG(DBG_IOCTL, "VIDIOC_S_FBUF base=%p, width=%d, height=%d, pixelformat=%d, bpl=%d",
+ vb->base, vb->fmt.width, vb->fmt.height, vb->fmt.pixelformat,vb->fmt.bytesperline);
+
+ for (formatIdx=0; formatIdx <= USBVISION_SUPPORTED_PALETTES; formatIdx++) {
+ if (formatIdx == USBVISION_SUPPORTED_PALETTES) {
+ return -EINVAL; // no matching video_format
+ }
+ if ((vb->fmt.pixelformat == usbvision_v4l2_format[formatIdx].format) &&
+ (usbvision_v4l2_format[formatIdx].supported)) {
+ break; //found matching video_format
+ }
+ }
+
+ if (vb->fmt.bytesperline<1) {
+ return -EINVAL;
+ }
+ if (usbvision->overlay) {
+ return -EBUSY;
+ }
+ down(&usbvision->lock);
+ if (usbvision->overlay_base) {
+ iounmap(usbvision->overlay_base);
+ usbvision->vid_buf_valid = 0;
+ }
+ usbvision->overlay_base = ioremap((ulong)vb->base, vb->fmt.height * vb->fmt.bytesperline);
+ if (usbvision->overlay_base) {
+ usbvision->vid_buf_valid = 1;
+ }
+ usbvision->vid_buf = *vb;
+ usbvision->overlay_frame.v4l2_format = usbvision_v4l2_format[formatIdx];
+ up(&usbvision->lock);
+ return 0;
+ }
+ case VIDIOC_ENUM_FMT:
+ {
+ struct v4l2_fmtdesc *vfd = arg;
+ if ( (dga == 0) &&
+ (vfd->type == V4L2_BUF_TYPE_VIDEO_OVERLAY) &&
+ (usbvision->palette.format != V4L2_PIX_FMT_YVU420) &&
+ (usbvision->palette.format != V4L2_PIX_FMT_YUV422P) ) {
+ return -EINVAL;
+ }
+ if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
+ return -EINVAL;
+ }
+ vfd->flags = 0;
+ strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
+ vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
+ return 0;
+ }
+ case VIDIOC_G_FMT:
+ {
+ struct v4l2_format *vf = arg;
+
+ if ( (dga == 0) &&
+ (vf->type == V4L2_BUF_TYPE_VIDEO_OVERLAY) &&
+ (usbvision->palette.format != V4L2_PIX_FMT_YVU420) &&
+ (usbvision->palette.format != V4L2_PIX_FMT_YUV422P) ) {
+ return -EINVAL;
+ }
+ down(&usbvision->lock);
+ *vf = usbvision->vid_win;
+ up(&usbvision->lock);
+ PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT x=%d, y=%d, w=%d, h=%d, chroma=%x, clips=%d",
+ vf->fmt.win.w.left, vf->fmt.win.w.top, vf->fmt.win.w.width, vf->fmt.win.w.height, vf->fmt.win.chromakey, vf->fmt.win.clipcount);
+ return 0;
+ }
+ case VIDIOC_S_FMT:
+ {
+ struct v4l2_format *vf = arg;
+ struct v4l2_clip *vc=NULL;
+ int on,formatIdx;
+
+ if ( (dga == 0) &&
+ (vf->type == V4L2_BUF_TYPE_VIDEO_OVERLAY) &&
+ (usbvision->palette.format != V4L2_PIX_FMT_YVU420) &&
+ (usbvision->palette.format != V4L2_PIX_FMT_YUV422P) ) {
+ return -EINVAL;
+ }
+ if(vf->type == V4L2_BUF_TYPE_VIDEO_OVERLAY) {
+ if (vf->fmt.win.clipcount>256) {
+ return -EDOM; /* Too many clips! */
+ }
+ // Do every clips.
+ vc = vmalloc(sizeof(struct v4l2_clip)*(vf->fmt.win.clipcount+4));
+ if (vc == NULL) {
+ return -ENOMEM;
+ }
+ if (vf->fmt.win.clipcount && copy_from_user(vc,vf->fmt.win.clips,sizeof(struct v4l2_clip)*vf->fmt.win.clipcount)) {
+ return -EFAULT;
+ }
+ on = usbvision->overlay; // Save overlay state
+ if (on) {
+ usbvision_cap(usbvision, 0);
+ }
+
+ // strange, it seems xawtv sometimes calls us with 0
+ // width and/or height. Ignore these values
+ if (vf->fmt.win.w.left == 0) {
+ vf->fmt.win.w.left = usbvision->vid_win.fmt.win.w.left;
+ }
+ if (vf->fmt.win.w.top == 0) {
+ vf->fmt.win.w.top = usbvision->vid_win.fmt.win.w.top;
+ }
+
+ // by now we are committed to the new data...
+ down(&usbvision->lock);
+ RESTRICT_TO_RANGE(vf->fmt.win.w.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
+ RESTRICT_TO_RANGE(vf->fmt.win.w.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
+ usbvision->vid_win = *vf;
+ usbvision->overlay_frame.width = vf->fmt.win.w.width;
+ usbvision->overlay_frame.height = vf->fmt.win.w.height;
+ usbvision_set_output(usbvision, vf->fmt.win.w.width, vf->fmt.win.w.height);
+ up(&usbvision->lock);
+
+ // Impose display clips
+ if (vf->fmt.win.w.left+vf->fmt.win.w.width > (unsigned int)usbvision->vid_buf.fmt.width) {
+ usbvision_new_clip(vf, vc, usbvision->vid_buf.fmt.width-vf->fmt.win.w.left, 0, vf->fmt.win.w.width-1, vf->fmt.win.w.height-1);
+ }
+ if (vf->fmt.win.w.top+vf->fmt.win.w.height > (unsigned int)usbvision->vid_buf.fmt.height) {
+ usbvision_new_clip(vf, vc, 0, usbvision->vid_buf.fmt.height-vf->fmt.win.w.top, vf->fmt.win.w.width-1, vf->fmt.win.w.height-1);
+ }
+
+ // built the requested clipping zones
+ usbvision_built_overlay(usbvision, vf->fmt.win.clipcount, vc);
+ vfree(vc);
+
+ // restore overlay state
+ if (on) {
+ usbvision_cap(usbvision, 1);
+ }
+ usbvision->vid_win_valid = 1;
+ PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT overlay x=%d, y=%d, w=%d, h=%d, chroma=%x, clips=%d",
+ vf->fmt.win.w.left, vf->fmt.win.w.top, vf->fmt.win.w.width, vf->fmt.win.w.height, vf->fmt.win.chromakey, vf->fmt.win.clipcount);
+ }
+ else {
+ /* Find requested format in available ones */
+ for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
+ if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) {
+ usbvision->palette = usbvision_v4l2_format[formatIdx];
+ break;
+ }
+ }
+ /* robustness */
+ if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
+ return -EINVAL;
+ }
+ usbvision->vid_win.fmt.pix.pixelformat = vf->fmt.pix.pixelformat;
+ usbvision->vid_win.fmt.pix.width = vf->fmt.pix.width; //Image width in pixels.
+ usbvision->vid_win.fmt.pix.height = vf->fmt.pix.height; // Image height in pixels.
+
+ // by now we are committed to the new data...
+ down(&usbvision->lock);
+ RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
+ RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
+ usbvision->vid_win = *vf;
+ usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
+ up(&usbvision->lock);
+
+ usbvision->vid_win_valid = 1;
+ PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, ",
+ vf->fmt.pix.width, vf->fmt.pix.height);
+ }
+ return 0;
+ }
+ case VIDIOC_OVERLAY:
+ {
+ int *v = arg;
+
+ if ( (dga == 0) &&
+ (usbvision->palette.format != V4L2_PIX_FMT_YVU420) &&
+ (usbvision->palette.format != V4L2_PIX_FMT_YUV422P) ) {
+ PDEBUG(DBG_IOCTL, "VIDIOC_OVERLAY DGA disabled");
+ return -EINVAL;
+ }
+
+ if (*v == 0) {
+ usbvision_cap(usbvision, 0);
+ }
+ else {
+ // are VIDIOCSFBUF and VIDIOCSWIN done?
+ if ((usbvision->vid_buf_valid == 0) || (usbvision->vid_win_valid == 0)) {
+ PDEBUG(DBG_IOCTL, "VIDIOC_OVERLAY vid_buf_valid %d; vid_win_valid %d",
+ usbvision->vid_buf_valid, usbvision->vid_win_valid);
+ return -EINVAL;
+ }
+ usbvision_cap(usbvision, 1);
+ }
+ PDEBUG(DBG_IOCTL, "VIDIOC_OVERLAY %s", (*v)?"on":"off");
+ return 0;
+ }
+ default:
+ return -ENOIOCTLCMD;
+ }
+ return 0;
+}
+
+static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl);
+}
+
+
+static ssize_t usbvision_v4l2_read(struct file *file, char *buf,
+ size_t count, loff_t *ppos)
+{
+ struct video_device *dev = video_devdata(file);
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
+ int noblock = file->f_flags & O_NONBLOCK;
+
+ int frmx = -1;
+ int rc = 0;
+ struct usbvision_frame *frame;
+
+ PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock);
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
+ return -EFAULT;
+
+ down(&usbvision->lock);
+ //code for testing compression
+ if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
+ usbvision->frame[0].v4l2_format = usbvision_v4l2_format[0]; //V4L2_PIX_FMT_GREY;
+ usbvision->frame[1].v4l2_format = usbvision_v4l2_format[0]; // V4L2_PIX_FMT_GREY;
+ }
+
+ // See if a frame is completed, then use it.
+ if (usbvision->frame[0].grabstate >= FrameState_Done) // _Done or _Error
+ frmx = 0;
+ else if (usbvision->frame[1].grabstate >= FrameState_Done)// _Done or _Error
+ frmx = 1;
+
+ if (noblock && (frmx == -1)) {
+ count = -EAGAIN;
+ goto usbvision_v4l2_read_done;
+ }
+
+ // If no FRAME_DONE, look for a FRAME_GRABBING state.
+ // See if a frame is in process (grabbing), then use it.
+ if (frmx == -1) {
+ if (usbvision->frame[0].grabstate == FrameState_Grabbing)
+ frmx = 0;
+ else if (usbvision->frame[1].grabstate == FrameState_Grabbing)
+ frmx = 1;
+ }
+
+ // If no frame is active, start one.
+ if (frmx == -1)
+ usbvision_new_frame(usbvision, frmx = 0);
+
+ frame = &usbvision->frame[frmx];
+
+ restart:
+ if (!USBVISION_IS_OPERATIONAL(usbvision)) {
+ count = -EIO;
+ goto usbvision_v4l2_read_done;
+ }
+ PDEBUG(DBG_IO, "Waiting frame grabbing");
+ rc = wait_event_interruptible(frame->wq, (frame->grabstate == FrameState_Done) ||
+ (frame->grabstate == FrameState_Error));
+ if (rc) {
+ goto usbvision_v4l2_read_done;
+ }
+
+ if (frame->grabstate == FrameState_Error) {
+ frame->bytes_read = 0;
+ if (usbvision_new_frame(usbvision, frmx)) {
+ err("%s: usbvision_new_frame() failed", __FUNCTION__);
+ }
+ goto restart;
+ }
+
+ PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__,
+ frmx, frame->bytes_read, frame->scanlength);
+
+ /* copy bytes to user space; we allow for partials reads */
+ if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
+ count = frame->scanlength - frame->bytes_read;
+
+ if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
+ count = -EFAULT;
+ goto usbvision_v4l2_read_done;
+ }
+
+ frame->bytes_read += count;
+ PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", __FUNCTION__,
+ (unsigned long)count, frame->bytes_read);
+
+ if (frame->bytes_read >= frame->scanlength) {// All data has been read
+ frame->bytes_read = 0;
+
+ /* Mark it as available to be used again. */
+ usbvision->frame[frmx].grabstate = FrameState_Unused;
+ if (usbvision_new_frame(usbvision, frmx ? 0 : 1))
+ err("%s: usbvision_new_frame() failed", __FUNCTION__);
+ }
+
+usbvision_v4l2_read_done:
+ up(&usbvision->lock);
+ return count;
+}
+
+static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct video_device *dev = video_devdata(file);
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
+ unsigned long start = vma->vm_start;
+ unsigned long size = vma->vm_end-vma->vm_start;
+
+ unsigned long page, pos;
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return -EFAULT;
+
+ if (size > (((USBVISION_NUMFRAMES * usbvision->max_frame_size) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1)))
+ return -EINVAL;
+
+ pos = (unsigned long) usbvision->fbuf;
+ while (size > 0) {
+
+// Really ugly....
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10) //Compatibility for 2.6.10+ kernels
+ page = vmalloc_to_pfn((void *)pos);
+ if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
+ return -EAGAIN;
+ }
+ #else //Compatibility for 2.6.0 - 2.6.9 kernels
+ page = usbvision_kvirt_to_pa(pos);
+ if (remap_page_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
+ return -EAGAIN;
+ }
+ #endif
+ start += PAGE_SIZE;
+ pos += PAGE_SIZE;
+ if (size > PAGE_SIZE)
+ size -= PAGE_SIZE;
+ else
+ size = 0;
+ }
+
+ return 0;
+}
+
+
+/*
+ * Here comes the stuff for radio on usbvision based devices
+ *
+ */
+static int usbvision_radio_open(struct inode *inode, struct file *file)
+{
+ struct video_device *dev = video_devdata(file);
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
+ struct v4l2_frequency freq;
+ int errCode = 0;
+
+ PDEBUG(DBG_RIO, "%s:", __FUNCTION__);
+
+ down(&usbvision->lock);
+
+ if (usbvision->user) {
+ err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__);
+ errCode = -EBUSY;
+ }
+ else {
+ if(PowerOnAtOpen) {
+ if (timer_pending(&usbvision->powerOffTimer)) {
+ del_timer(&usbvision->powerOffTimer);
+ }
+ if (usbvision->power == 0) {
+ usbvision_power_on(usbvision);
+ usbvision_init_i2c(usbvision);
+ }
+ }
+
+ // If so far no errors then we shall start the radio
+ usbvision->radio = 1;
+ call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
+ freq.frequency = 1517; //SWR3 @ 94.8MHz
+ call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq);
+ usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
+ usbvision->user++;
+ }
+
+ if (errCode) {
+ if (PowerOnAtOpen) {
+ usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
+ usbvision_power_off(usbvision);
+ usbvision->initialized = 0;
+ }
+ }
+ up(&usbvision->lock);
+ return errCode;
+}
+
+
+static int usbvision_radio_close(struct inode *inode, struct file *file)
+{
+ struct video_device *dev = video_devdata(file);
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
+ int errCode = 0;
+
+ PDEBUG(DBG_RIO, "");
+
+ down(&usbvision->lock);
+
+ usbvision_audio_off(usbvision);
+ usbvision->radio=0;
+ usbvision->user--;
+
+ if (PowerOnAtOpen) {
+ mod_timer(&usbvision->powerOffTimer, jiffies + USBVISION_POWEROFF_TIME);
+ usbvision->initialized = 0;
+ }
+
+ up(&usbvision->lock);
+
+ if (usbvision->remove_pending) {
+ info("%s: Final disconnect", __FUNCTION__);
+ usbvision_release(usbvision);
+ }
+
+
+ PDEBUG(DBG_RIO, "success");
+
+ return errCode;
+}
+
+static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, void *arg)
+{
+ struct video_device *dev = video_devdata(file);
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return -EIO;
+
+ switch (cmd) {
+ /***************************
+ * V4L2 IOCTLs *
+ ***************************/
+ case VIDIOC_QUERYCAP:
+ {
+ struct v4l2_capability *vc=arg;
+ memset(vc, 0, sizeof(struct v4l2_capability));
+ strcpy(vc->driver,"usbvision radio");
+ strcpy(vc->card,usbvision->vcap.card);
+ strcpy(vc->bus_info,"usb");
+ vc->version = USBVISION_DRIVER_VERSION; /* version */
+ vc->capabilities = V4L2_CAP_TUNER; /* capabilities */
+ PDEBUG(DBG_RIO, "%s: VIDIOC_QUERYCAP", __FUNCTION__);
+ return 0;
+ }
+ case VIDIOC_QUERYCTRL:
+ {
+ struct v4l2_queryctrl *qc = arg;
+ switch(qc->id)
+ {
+ case V4L2_CID_AUDIO_VOLUME:
+ case V4L2_CID_AUDIO_MUTE:
+ return v4l2_ctrl_query_fill_std(qc);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+ }
+ case VIDIOC_G_CTRL:
+ {
+ struct v4l2_control *ctrl = arg;
+ PDEBUG(DBG_IOCTL, "VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
+ switch(ctrl->id) {
+ case V4L2_CID_AUDIO_VOLUME:
+ /* ctrl->value = usbvision->volume; */
+ break;
+ case V4L2_CID_AUDIO_MUTE:
+ ctrl->value = usbvision->AudioMute;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+ }
+ case VIDIOC_S_CTRL:
+ {
+ struct v4l2_control *ctrl = arg;
+ call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
+
+ PDEBUG(DBG_RIO, "%s: VIDIOC_S_CTRL id=%x value=%x", __FUNCTION__,ctrl->id,ctrl->value);
+ return 0;
+ }
+ case VIDIOC_G_TUNER:
+ {
+ struct v4l2_tuner *vt = arg;
+
+ if (!usbvision->have_tuner || vt->index) // Only tuner 0
+ return -EINVAL;
+ strcpy(vt->name, "Radio");
+ vt->type = V4L2_TUNER_RADIO;
+ vt->capability = V4L2_TUNER_CAP_STEREO;
+ // japan: 76.0 MHz - 89.9 MHz
+ // western europe: 87.5 MHz - 108.0 MHz
+ // russia: 65.0 MHz - 108.0 MHz
+ vt->rangelow = (int)(65*16);;
+ vt->rangehigh = (int)(108*16);
+ vt->audmode = V4L2_TUNER_MODE_STEREO;
+ vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
+ call_i2c_clients(usbvision,VIDIOC_G_TUNER,&vt);
+
+ PDEBUG(DBG_RIO, "%s: VIDIOC_G_TUNER signal=%d", __FUNCTION__, vt->signal);
+ return 0;
+ }
+ case VIDIOC_S_TUNER:
+ {
+ struct v4l2_tuner *vt = arg;
+
+ // Only channel 0 has a tuner
+ if((vt->index) || (usbvision->channel)) {
+ return -EINVAL;
+ }
+ PDEBUG(DBG_RIO, "%s: VIDIOC_S_TUNER", __FUNCTION__);
+ return 0;
+ }
+ case VIDIOC_G_AUDIO:
+ {
+ struct v4l2_audio *va = arg;
+ memset(va,0, sizeof(va));
+ va->capability = V4L2_AUDCAP_STEREO;
+ strcpy(va->name, "Radio");
+ PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO");
+ return 0;
+ }
+ case VIDIOC_S_AUDIO:
+ {
+ struct v4l2_audio *v = arg;
+ if(v->index) {
+ return -EINVAL;
+ }
+ PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO");
+ // FIXME: void function ???
+ return 0;
+ }
+ case VIDIOC_G_FREQUENCY:
+ {
+ struct v4l2_frequency *freq = arg;
+ freq->tuner = 0; // Only one tuner
+ freq->type = V4L2_TUNER_RADIO;
+ freq->frequency = usbvision->freq;
+ PDEBUG(DBG_RIO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
+ return 0;
+ }
+ case VIDIOC_S_FREQUENCY:
+ {
+ struct v4l2_frequency *freq = arg;
+ usbvision->freq = freq->frequency;
+ call_i2c_clients(usbvision, cmd, freq);
+ PDEBUG(DBG_RIO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
+ return 0;
+ }
+
+ /***************************
+ * V4L1 IOCTLs *
+ ***************************/
+ case VIDIOCGCAP:
+ {
+ struct video_capability *vc = arg;
+
+ memset(vc, 0, sizeof(struct video_capability));
+ strcpy(vc->name,usbvision->vcap.card);
+ vc->type = VID_TYPE_TUNER;
+ vc->channels = 1;
+ vc->audios = 1;
+ PDEBUG(DBG_RIO, "%s: VIDIOCGCAP", __FUNCTION__);
+ return 0;
+ }
+ case VIDIOCGTUNER:
+ {
+ struct video_tuner *vt = arg;
+
+ if((vt->tuner) || (usbvision->channel)) { /* Only tuner 0 */
+ return -EINVAL;
+ }
+ strcpy(vt->name, "Radio");
+ // japan: 76.0 MHz - 89.9 MHz
+ // western europe: 87.5 MHz - 108.0 MHz
+ // russia: 65.0 MHz - 108.0 MHz
+ vt->rangelow=(int)(65*16);
+ vt->rangehigh=(int)(108*16);
+ vt->flags= 0;
+ vt->mode = 0;
+ call_i2c_clients(usbvision,cmd,vt);
+ PDEBUG(DBG_RIO, "%s: VIDIOCGTUNER signal=%d", __FUNCTION__, vt->signal);
+ return 0;
+ }
+ case VIDIOCSTUNER:
+ {
+ struct video_tuner *vt = arg;
+
+ // Only channel 0 has a tuner
+ if((vt->tuner) || (usbvision->channel)) {
+ return -EINVAL;
+ }
+ PDEBUG(DBG_RIO, "%s: VIDIOCSTUNER", __FUNCTION__);
+ return 0;
+ }
+ case VIDIOCGAUDIO:
+ {
+ struct video_audio *va = arg;
+ memset(va,0, sizeof(struct video_audio));
+ call_i2c_clients(usbvision, cmd, va);
+ va->flags|=VIDEO_AUDIO_MUTABLE;
+ va->volume=1;
+ va->step=1;
+ strcpy(va->name, "Radio");
+ PDEBUG(DBG_RIO, "%s: VIDIOCGAUDIO", __FUNCTION__);
+ return 0;
+ }
+ case VIDIOCSAUDIO:
+ {
+ struct video_audio *va = arg;
+ if(va->audio) {
+ return -EINVAL;
+ }
+
+ if(va->flags & VIDEO_AUDIO_MUTE) {
+ if (usbvision_audio_mute(usbvision)) {
+ return -EFAULT;
+ }
+ }
+ else {
+ if (usbvision_audio_on(usbvision)) {
+ return -EFAULT;
+ }
+ }
+ PDEBUG(DBG_RIO, "%s: VIDIOCSAUDIO flags=0x%x)", __FUNCTION__, va->flags);
+ return 0;
+ }
+ case VIDIOCGFREQ:
+ {
+ unsigned long *freq = arg;
+
+ *freq = usbvision->freq;
+ PDEBUG(DBG_RIO, "%s: VIDIOCGFREQ freq = %ld00 kHz", __FUNCTION__, (*freq * 10)>>4);
+ return 0;
+ }
+ case VIDIOCSFREQ:
+ {
+ unsigned long *freq = arg;
+
+ usbvision->freq = *freq;
+ call_i2c_clients(usbvision, cmd, freq);
+ PDEBUG(DBG_RIO, "%s: VIDIOCSFREQ freq = %ld00 kHz", __FUNCTION__, (*freq * 10)>>4);
+ return 0;
+ }
+ default:
+ {
+ PDEBUG(DBG_RIO, "%s: Unknown command %x", __FUNCTION__, cmd);
+ return -ENOIOCTLCMD;
+ }
+ }
+ return 0;
+}
+
+
+static int usbvision_radio_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl);
+}
+
+
+/*
+ * Here comes the stuff for vbi on usbvision based devices
+ *
+ */
+static int usbvision_vbi_open(struct inode *inode, struct file *file)
+{
+ struct video_device *dev = video_devdata(file);
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
+ unsigned long freq;
+ int errCode = 0;
+
+ PDEBUG(DBG_RIO, "%s:", __FUNCTION__);
+
+ down(&usbvision->lock);
+
+ if (usbvision->user) {
+ err("%s: Someone tried to open an already opened USBVision VBI!", __FUNCTION__);
+ errCode = -EBUSY;
+ }
+ else {
+ if(PowerOnAtOpen) {
+ if (timer_pending(&usbvision->powerOffTimer)) {
+ del_timer(&usbvision->powerOffTimer);
+ }
+ if (usbvision->power == 0) {
+ usbvision_power_on(usbvision);
+ usbvision_init_i2c(usbvision);
+ }
+ }
+
+ // If so far no errors then we shall start the vbi device
+ //usbvision->vbi = 1;
+ call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
+ freq = 1517; //SWR3 @ 94.8MHz
+ call_i2c_clients(usbvision, VIDIOCSFREQ, &freq);
+ usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
+ usbvision->user++;
+ }
+
+ if (errCode) {
+ if (PowerOnAtOpen) {
+ usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
+ usbvision_power_off(usbvision);
+ usbvision->initialized = 0;
+ }
+ }
+ up(&usbvision->lock);
+ return errCode;
+}
+
+static int usbvision_vbi_close(struct inode *inode, struct file *file)
+{
+ struct video_device *dev = video_devdata(file);
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
+ int errCode = 0;
+
+ PDEBUG(DBG_RIO, "");
+
+ down(&usbvision->lock);
+
+ usbvision_audio_off(usbvision);
+ usbvision->vbi=0;
+ usbvision->user--;
+
+ if (PowerOnAtOpen) {
+ mod_timer(&usbvision->powerOffTimer, jiffies + USBVISION_POWEROFF_TIME);
+ usbvision->initialized = 0;
+ }
+
+ up(&usbvision->lock);
+
+ if (usbvision->remove_pending) {
+ info("%s: Final disconnect", __FUNCTION__);
+ usbvision_release(usbvision);
+ }
+
+
+ PDEBUG(DBG_RIO, "success");
+
+ return errCode;
+}
+
+static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, void *arg)
+{
+ struct video_device *dev = video_devdata(file);
+ struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
+
+ if (!USBVISION_IS_OPERATIONAL(usbvision))
+ return -EIO;
+
+ switch (cmd) {
+ case VIDIOC_QUERYCAP:
+ {
+ struct v4l2_capability *vc=arg;
+ memset(vc, 0, sizeof(struct v4l2_capability));
+ strcpy(vc->driver,"usbvision vbi");
+ strcpy(vc->card,usbvision->vcap.card);
+ strcpy(vc->bus_info,"usb");
+ vc->version = USBVISION_DRIVER_VERSION; /* version */
+ vc->capabilities = V4L2_CAP_VBI_CAPTURE; /* capabilities */
+ PDEBUG(DBG_RIO, "%s: VIDIOC_QUERYCAP", __FUNCTION__);
+ return 0;
+ }
+ case VIDIOCGTUNER:
+ {
+ struct video_tuner *vt = arg;
+
+ if((vt->tuner) || (usbvision->channel)) { /* Only tuner 0 */
+ return -EINVAL;
+ }
+ strcpy(vt->name, "vbi");
+ // japan: 76.0 MHz - 89.9 MHz
+ // western europe: 87.5 MHz - 108.0 MHz
+ // russia: 65.0 MHz - 108.0 MHz
+ vt->rangelow=(int)(65*16);
+ vt->rangehigh=(int)(108*16);
+ vt->flags= 0;
+ vt->mode = 0;
+ call_i2c_clients(usbvision,cmd,vt);
+ PDEBUG(DBG_RIO, "%s: VIDIOCGTUNER signal=%d", __FUNCTION__, vt->signal);
+ return 0;
+ }
+ case VIDIOCSTUNER:
+ {
+ struct video_tuner *vt = arg;
+
+ // Only channel 0 has a tuner
+ if((vt->tuner) || (usbvision->channel)) {
+ return -EINVAL;
+ }
+ PDEBUG(DBG_RIO, "%s: VIDIOCSTUNER", __FUNCTION__);
+ return 0;
+ }
+ case VIDIOCGAUDIO:
+ {
+ struct video_audio *va = arg;
+ memset(va,0, sizeof(struct video_audio));
+ call_i2c_clients(usbvision, cmd, va);
+ va->flags|=VIDEO_AUDIO_MUTABLE;
+ va->volume=1;
+ va->step=1;
+ strcpy(va->name, "vbi");
+ PDEBUG(DBG_RIO, "%s: VIDIOCGAUDIO", __FUNCTION__);
+ return 0;
+ }
+ case VIDIOCSAUDIO:
+ {
+ struct video_audio *va = arg;
+ if(va->audio) {
+ return -EINVAL;
+ }
+
+ if(va->flags & VIDEO_AUDIO_MUTE) {
+ if (usbvision_audio_mute(usbvision)) {
+ return -EFAULT;
+ }
+ }
+ else {
+ if (usbvision_audio_on(usbvision)) {
+ return -EFAULT;
+ }
+ }
+ PDEBUG(DBG_RIO, "%s: VIDIOCSAUDIO flags=0x%x)", __FUNCTION__, va->flags);
+ return 0;
+ }
+ case VIDIOCGFREQ:
+ {
+ unsigned long *freq = arg;
+
+ *freq = usbvision->freq;
+ PDEBUG(DBG_RIO, "%s: VIDIOCGFREQ freq = %ld00 kHz", __FUNCTION__, (*freq * 10)>>4);
+ return 0;
+ }
+ case VIDIOCSFREQ:
+ {
+ unsigned long *freq = arg;
+
+ usbvision->freq = *freq;
+ call_i2c_clients(usbvision, cmd, freq);
+ PDEBUG(DBG_RIO, "%s: VIDIOCSFREQ freq = %ld00 kHz", __FUNCTION__, (*freq * 10)>>4);
+ return 0;
+ }
+ default:
+ {
+ PDEBUG(DBG_RIO, "%s: Unknown command %d", __FUNCTION__, cmd);
+ return -ENOIOCTLCMD;
+ }
+ }
+ return 0;
+}
+
+static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
+}
+
+
+
+static void usbvision_configure_video(struct usb_usbvision *usbvision)
+{
+ int model;
+
+ if (usbvision == NULL)
+ return;
+
+ model = usbvision->DevModel;
+
+ RESTRICT_TO_RANGE(init_brightness, 0, 255);
+ RESTRICT_TO_RANGE(init_contrast, 0, 255);
+ RESTRICT_TO_RANGE(init_saturation, 0, 255);
+ RESTRICT_TO_RANGE(init_hue, 0, 255);
+
+ usbvision->saturation = init_saturation << 8;
+ usbvision->hue = init_hue << 8;
+ usbvision->brightness = init_brightness << 8;
+ usbvision->contrast = init_contrast << 8;
+ usbvision->depth = 24;
+ usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
+
+ if (usbvision_device_data[usbvision->DevModel].Vin_Reg2 >= 0) {
+ usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2 & 0xff;
+ } else {
+ usbvision->Vin_Reg2_Preset = 0;
+ }
+
+ memset(&usbvision->vcap, 0, sizeof(usbvision->vcap));
+ strcpy(usbvision->vcap.driver, "USBVision");
+ usbvision->vcap.capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
+ (dga ? (V4L2_FBUF_CAP_LIST_CLIPPING | V4L2_CAP_VIDEO_OVERLAY) : 0) |
+ (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
+ usbvision->vcap.version = USBVISION_DRIVER_VERSION; /* version */
+
+ usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
+
+ memset(&usbvision->input, 0, sizeof(usbvision->input));
+ usbvision->input.tuner = 0;
+ usbvision->input.type = V4L2_INPUT_TYPE_TUNER|VIDEO_TYPE_CAMERA;
+ usbvision->input.std = usbvision_device_data[model].VideoNorm;
+
+ /* This should be here to make i2c clients to be able to register */
+ usbvision_audio_off(usbvision); //first switch off audio
+ if (!PowerOnAtOpen) {
+ usbvision_power_on(usbvision); //and then power up the noisy tuner
+ usbvision_init_i2c(usbvision);
+ }
+}
+
+//
+// Video registration stuff
+//
+
+// Video template
+static struct file_operations usbvision_fops = {
+ #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
+ .owner = THIS_MODULE,
+ #endif
+ .open = usbvision_v4l2_open,
+ .release = usbvision_v4l2_close,
+ .read = usbvision_v4l2_read,
+ .mmap = usbvision_v4l2_mmap,
+ .ioctl = usbvision_v4l2_ioctl,
+ .llseek = no_llseek,
+};
+static struct video_device usbvision_video_template = {
+ #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
+ .owner = THIS_MODULE,
+ #endif
+ .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE,
+ .hardware = VID_HARDWARE_USBVISION,
+ .fops = &usbvision_fops,
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+ .name = "usbvision-video",
+ .release = video_device_release,
+ #endif
+ .minor = -1,
+};
+
+
+// Radio template
+static struct file_operations usbvision_radio_fops = {
+ #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
+ .owner = THIS_MODULE,
+ #endif
+ .open = usbvision_radio_open,
+ .release = usbvision_radio_close,
+ .ioctl = usbvision_radio_ioctl,
+ .llseek = no_llseek,
+};
+
+static struct video_device usbvision_radio_template=
+{
+ #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
+ .owner = THIS_MODULE,
+ #endif
+ .type = VID_TYPE_TUNER,
+ .hardware = VID_HARDWARE_USBVISION,
+ .fops = &usbvision_radio_fops,
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+ .release = video_device_release,
+ .name = "usbvision-radio",
+ #endif
+ .minor = -1,
+};
+
+
+// vbi template
+static struct file_operations usbvision_vbi_fops = {
+ #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
+ .owner = THIS_MODULE,
+ #endif
+ .open = usbvision_vbi_open,
+ .release = usbvision_vbi_close,
+ .ioctl = usbvision_vbi_ioctl,
+ .llseek = no_llseek,
+};
+
+static struct video_device usbvision_vbi_template=
+{
+ #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
+ .owner = THIS_MODULE,
+ #endif
+ .type = VID_TYPE_TUNER,
+ .hardware = VID_HARDWARE_USBVISION,
+ .fops = &usbvision_vbi_fops,
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+ .release = video_device_release,
+ .name = "usbvision-vbi",
+ #endif
+ .minor = -1,
+};
+
+
+static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
+ struct video_device *vdev_template,
+ char *name)
+{
+ struct usb_device *usb_dev = usbvision->dev;
+ struct video_device *vdev;
+
+ if (usb_dev == NULL) {
+ err("%s: usbvision->dev is not set", __FUNCTION__);
+ return NULL;
+ }
+
+ vdev = video_device_alloc();
+ if (NULL == vdev) {
+ return NULL;
+ }
+ *vdev = *vdev_template;
+// vdev->minor = -1;
+ vdev->dev = &usb_dev->dev;
+ snprintf(vdev->name, sizeof(vdev->name), "%s", name);
+ video_set_drvdata(vdev, usbvision);
+ return vdev;
+}
+
+// unregister video4linux devices
+static void usbvision_unregister_video(struct usb_usbvision *usbvision)
+{
+ // vbi Device:
+ if (usbvision->vbi) {
+ PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f);
+ if (usbvision->vbi->minor != -1) {
+ video_unregister_device(usbvision->vbi);
+ }
+ else {
+ video_device_release(usbvision->vbi);
+ }
+ usbvision->vbi = NULL;
+ }
+
+ // Radio Device:
+ if (usbvision->rdev) {
+ PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f);
+ if (usbvision->rdev->minor != -1) {
+ video_unregister_device(usbvision->rdev);
+ }
+ else {
+ video_device_release(usbvision->rdev);
+ }
+ usbvision->rdev = NULL;
+ }
+
+ // Video Device:
+ if (usbvision->vdev) {
+ PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f);
+ if (usbvision->vdev->minor != -1) {
+ video_unregister_device(usbvision->vdev);
+ }
+ else {
+ video_device_release(usbvision->vdev);
+ }
+ usbvision->vdev = NULL;
+ }
+}
+
+// register video4linux devices
+static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
+{
+ // Video Device:
+ usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video");
+ if (usbvision->vdev == NULL) {
+ goto err_exit;
+ }
+ if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) {
+ goto err_exit;
+ }
+ info("USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]", usbvision->nr,usbvision->vdev->minor & 0x1f);
+
+ // Radio Device:
+ if (usbvision_device_data[usbvision->DevModel].Radio) {
+ // usbvision has radio
+ usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio");
+ if (usbvision->rdev == NULL) {
+ goto err_exit;
+ }
+ if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) {
+ goto err_exit;
+ }
+ info("USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]", usbvision->nr, usbvision->rdev->minor & 0x1f);
+ }
+ // vbi Device:
+ if (usbvision_device_data[usbvision->DevModel].vbi) {
+ usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI");
+ if (usbvision->vdev == NULL) {
+ goto err_exit;
+ }
+ if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) {
+ goto err_exit;
+ }
+ info("USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)", usbvision->nr,usbvision->vbi->minor & 0x1f);
+ }
+ // all done
+ return 0;
+
+ err_exit:
+ err("USBVision[%d]: video_register_device() failed", usbvision->nr);
+ usbvision_unregister_video(usbvision);
+ return -1;
+}
+
+/*
+ * usbvision_alloc()
+ *
+ * This code allocates the struct usb_usbvision. It is filled with default values.
+ *
+ * Returns NULL on error, a pointer to usb_usbvision else.
+ *
+ */
+static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
+{
+ struct usb_usbvision *usbvision;
+ int FrameIdx;
+
+ if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) {
+ goto err_exit;
+ }
+
+ usbvision->dev = dev;
+
+ for (FrameIdx = 0; FrameIdx < USBVISION_NUMFRAMES; FrameIdx++) {
+ init_waitqueue_head(&usbvision->frame[FrameIdx].wq);
+ }
+ init_waitqueue_head(&usbvision->overlay_frame.wq);
+ init_MUTEX(&usbvision->lock); /* to 1 == available */
+
+ // prepare control urb for control messages during interrupts
+ usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
+ if (usbvision->ctrlUrb == NULL) {
+ goto err_exit;
+ }
+ init_waitqueue_head(&usbvision->ctrlUrb_wq);
+ init_MUTEX(&usbvision->ctrlUrbLock);
+
+ init_timer(&usbvision->powerOffTimer);
+ usbvision->powerOffTimer.data = (long) usbvision;
+ usbvision->powerOffTimer.function = usbvision_powerOffTimer;
+
+ return usbvision;
+
+err_exit:
+ if (usbvision && usbvision->ctrlUrb) {
+ usb_free_urb(usbvision->ctrlUrb);
+ }
+ if (usbvision) {
+ kfree(usbvision);
+ }
+ return NULL;
+}
+
+/*
+ * usbvision_release()
+ *
+ * This code does final release of struct usb_usbvision. This happens
+ * after the device is disconnected -and- all clients closed their files.
+ *
+ */
+static void usbvision_release(struct usb_usbvision *usbvision)
+{
+ PDEBUG(DBG_PROBE, "");
+
+ down(&usbvision->lock);
+
+ if (timer_pending(&usbvision->powerOffTimer)) {
+ del_timer(&usbvision->powerOffTimer);
+ }
+
+ usbvision->usbvision_used = 0;
+ usbvision->initialized = 0;
+
+ up(&usbvision->lock);
+
+ usbvision_remove_sysfs(usbvision->vdev);
+ usbvision_unregister_video(usbvision);
+ if(dga) {
+ if (usbvision->overlay_base) {
+ iounmap(usbvision->overlay_base);
+ }
+ }
+
+ if (usbvision->ctrlUrb) {
+ usb_free_urb(usbvision->ctrlUrb);
+ }
+
+ kfree(usbvision);
+
+ PDEBUG(DBG_PROBE, "success");
+}
+
+
+/*
+ * usbvision_probe()
+ *
+ * This procedure queries device descriptor and accepts the interface
+ * if it looks like USBVISION video device
+ *
+ */
+static int __devinit usbvision_probe(struct usb_interface *intf, const struct usb_device_id *devid)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
+ const struct usb_host_interface *interface;
+ struct usb_usbvision *usbvision = NULL;
+ const struct usb_endpoint_descriptor *endpoint;
+ int model;
+
+ PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
+ dev->descriptor.idVendor, dev->descriptor.idProduct, ifnum);
+
+ /* Is it an USBVISION video dev? */
+ model = 0;
+ for(model = 0; usbvision_device_data[model].idVendor; model++) {
+ if (le16_to_cpu(dev->descriptor.idVendor) != usbvision_device_data[model].idVendor) {
+ continue;
+ }
+ if (le16_to_cpu(dev->descriptor.idProduct) != usbvision_device_data[model].idProduct) {
+ continue;
+ }
+
+ info("%s: %s found", __FUNCTION__, usbvision_device_data[model].ModelString);
+ break;
+ }
+
+ if (usbvision_device_data[model].idVendor == 0) {
+ return -ENODEV; //no matching device
+ }
+ if (usbvision_device_data[model].Interface >= 0) {
+ interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
+ }
+ else {
+ interface = &dev->actconfig->interface[ifnum]->altsetting[0];
+ }
+ endpoint = &interface->endpoint[1].desc;
+ if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) {
+ err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum);
+ err("%s: Endpoint attribures %d", __FUNCTION__, endpoint->bmAttributes);
+ return -ENODEV;
+ }
+ if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
+ err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum);
+ return -ENODEV;
+ }
+
+ usb_get_dev(dev);
+
+ if ((usbvision = usbvision_alloc(dev)) == NULL) {
+ err("%s: couldn't allocate USBVision struct", __FUNCTION__);
+ return -ENOMEM;
+ }
+ if (dev->descriptor.bNumConfigurations > 1) {
+ usbvision->bridgeType = BRIDGE_NT1004;
+ }
+ else if (usbvision_device_data[model].ModelString == "Dazzle Fusion Model DVC-90 Rev 1 (SECAM)") {
+ usbvision->bridgeType = BRIDGE_NT1005;
+ }
+ else {
+ usbvision->bridgeType = BRIDGE_NT1003;
+ }
+ PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
+
+ down(&usbvision->lock);
+
+ usbvision->nr = usbvision_nr++;
+
+ usbvision->have_tuner = usbvision_device_data[model].Tuner;
+ if (usbvision->have_tuner) {
+ usbvision->tuner_type = usbvision_device_data[model].TunerType;
+ }
+
+ usbvision->DevModel = model;
+ usbvision->remove_pending = 0;
+ usbvision->last_error = 0;
+ usbvision->iface = ifnum;
+ usbvision->ifaceAltInactive = 0;
+ usbvision->ifaceAltActive = 1;
+ usbvision->video_endp = endpoint->bEndpointAddress;
+ usbvision->isocPacketSize = 0;
+ usbvision->usb_bandwidth = 0;
+ usbvision->user = 0;
+
+ usbvision_register_video(usbvision);
+ usbvision_configure_video(usbvision);
+ up(&usbvision->lock);
+
+
+ usb_set_intfdata (intf, usbvision);
+ usbvision_create_sysfs(usbvision->vdev);
+
+ PDEBUG(DBG_PROBE, "success");
+ return 0;
+}
+
+
+/*
+ * usbvision_disconnect()
+ *
+ * This procedure stops all driver activity, deallocates interface-private
+ * structure (pointed by 'ptr') and after that driver should be removable
+ * with no ill consequences.
+ *
+ */
+static void __devexit usbvision_disconnect(struct usb_interface *intf)
+{
+ struct usb_usbvision *usbvision = usb_get_intfdata(intf);
+
+ PDEBUG(DBG_PROBE, "");
+
+ if (usbvision == NULL) {
+ err("%s: usb_get_intfdata() failed", __FUNCTION__);
+ return;
+ }
+ usb_set_intfdata (intf, NULL);
+
+ down(&usbvision->lock);
+
+ // At this time we ask to cancel outstanding URBs
+ usbvision_stop_isoc(usbvision);
+
+ if (usbvision->power) {
+ usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
+ usbvision_power_off(usbvision);
+ }
+ usbvision->remove_pending = 1; // Now all ISO data will be ignored
+
+ usb_put_dev(usbvision->dev);
+ usbvision->dev = NULL; // USB device is no more
+
+ up(&usbvision->lock);
+
+ if (usbvision->user) {
+ info("%s: In use, disconnect pending", __FUNCTION__);
+ }
+ else {
+ usbvision_release(usbvision);
+ }
+
+ PDEBUG(DBG_PROBE, "success");
+
+}
+
+MODULE_DEVICE_TABLE (usb, usbvision_table);
+
+static struct usb_driver usbvision_driver = {
+ .name = "usbvision",
+ .id_table = usbvision_table,
+ .probe = usbvision_probe,
+ .disconnect = usbvision_disconnect
+};
+
+/*
+ * customdevice_process()
+ *
+ * This procedure preprocesses CustomDevice parameter if any
+ *
+ */
+void customdevice_process(void)
+{
+ usbvision_device_data[0]=usbvision_device_data[1];
+ usbvision_table[0]=usbvision_table[1];
+
+ if(CustomDevice)
+ {
+ char *parse=CustomDevice;
+
+ PDEBUG(DBG_PROBE, "CustomDevide=%s", CustomDevice);
+
+ /*format is CustomDevice="0x0573 0x4D31 0 7113 3 PAL 1 1 1 5 -1 -1 -1 -1 -1"
+ usbvision_device_data[0].idVendor;
+ usbvision_device_data[0].idProduct;
+ usbvision_device_data[0].Interface;
+ usbvision_device_data[0].Codec;
+ usbvision_device_data[0].VideoChannels;
+ usbvision_device_data[0].VideoNorm;
+ usbvision_device_data[0].AudioChannels;
+ usbvision_device_data[0].Radio;
+ usbvision_device_data[0].Tuner;
+ usbvision_device_data[0].TunerType;
+ usbvision_device_data[0].Vin_Reg1;
+ usbvision_device_data[0].Vin_Reg2;
+ usbvision_device_data[0].X_Offset;
+ usbvision_device_data[0].Y_Offset;
+ usbvision_device_data[0].Dvi_yuv;
+ usbvision_device_data[0].ModelString;
+ */
+
+ rmspace(parse);
+ usbvision_device_data[0].ModelString="USBVISION Custom Device";
+
+ parse+=2;
+ sscanf(parse,"%x",&usbvision_device_data[0].idVendor);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "idVendor=0x%.4X", usbvision_device_data[0].idVendor);
+ parse+=2;
+ sscanf(parse,"%x",&usbvision_device_data[0].idProduct);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "idProduct=0x%.4X", usbvision_device_data[0].idProduct);
+ sscanf(parse,"%d",&usbvision_device_data[0].Interface);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "Interface=%d", usbvision_device_data[0].Interface);
+ sscanf(parse,"%d",&usbvision_device_data[0].Codec);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "Codec=%d", usbvision_device_data[0].Codec);
+ sscanf(parse,"%d",&usbvision_device_data[0].VideoChannels);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "VideoChannels=%d", usbvision_device_data[0].VideoChannels);
+
+ switch(*parse)
+ {
+ case 'P':
+ PDEBUG(DBG_PROBE, "VideoNorm=PAL");
+ usbvision_device_data[0].VideoNorm=VIDEO_MODE_PAL;
+ break;
+
+ case 'S':
+ PDEBUG(DBG_PROBE, "VideoNorm=SECAM");
+ usbvision_device_data[0].VideoNorm=VIDEO_MODE_SECAM;
+ break;
+
+ case 'N':
+ PDEBUG(DBG_PROBE, "VideoNorm=NTSC");
+ usbvision_device_data[0].VideoNorm=VIDEO_MODE_NTSC;
+ break;
+
+ default:
+ PDEBUG(DBG_PROBE, "VideoNorm=PAL (by default)");
+ usbvision_device_data[0].VideoNorm=VIDEO_MODE_PAL;
+ break;
+ }
+ goto2next(parse);
+
+ sscanf(parse,"%d",&usbvision_device_data[0].AudioChannels);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "AudioChannels=%d", usbvision_device_data[0].AudioChannels);
+ sscanf(parse,"%d",&usbvision_device_data[0].Radio);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "Radio=%d", usbvision_device_data[0].Radio);
+ sscanf(parse,"%d",&usbvision_device_data[0].Tuner);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "Tuner=%d", usbvision_device_data[0].Tuner);
+ sscanf(parse,"%d",&usbvision_device_data[0].TunerType);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "TunerType=%d", usbvision_device_data[0].TunerType);
+ sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg1);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "Vin_Reg1=%d", usbvision_device_data[0].Vin_Reg1);
+ sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg2);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "Vin_Reg2=%d", usbvision_device_data[0].Vin_Reg2);
+ sscanf(parse,"%d",&usbvision_device_data[0].X_Offset);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "X_Offset=%d", usbvision_device_data[0].X_Offset);
+ sscanf(parse,"%d",&usbvision_device_data[0].Y_Offset);
+ goto2next(parse);
+ PDEBUG(DBG_PROBE, "Y_Offset=%d", usbvision_device_data[0].Y_Offset);
+ sscanf(parse,"%d",&usbvision_device_data[0].Dvi_yuv);
+ PDEBUG(DBG_PROBE, "Dvi_yuv=%d", usbvision_device_data[0].Dvi_yuv);
+
+ //add to usbvision_table also
+ usbvision_table[0].match_flags=USB_DEVICE_ID_MATCH_DEVICE;
+ usbvision_table[0].idVendor=usbvision_device_data[0].idVendor;
+ usbvision_table[0].idProduct=usbvision_device_data[0].idProduct;
+
+ }
+}
+
+
+
+/*
+ * usbvision_init()
+ *
+ * This code is run to initialize the driver.
+ *
+ */
+static int __init usbvision_init(void)
+{
+ int errCode;
+
+ PDEBUG(DBG_PROBE, "");
+
+ PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled");
+ PDEBUG(DBG_IO, "IO debugging is enabled");
+ PDEBUG(DBG_RIO, "RIO debugging is enabled");
+ PDEBUG(DBG_HEADER, "HEADER debugging is enabled");
+ PDEBUG(DBG_PROBE, "PROBE debugging is enabled");
+ PDEBUG(DBG_IRQ, "IRQ debugging is enabled");
+ PDEBUG(DBG_ISOC, "ISOC debugging is enabled");
+ PDEBUG(DBG_PARSE, "PARSE debugging is enabled");
+ PDEBUG(DBG_SCRATCH, "SCRATCH debugging is enabled");
+ PDEBUG(DBG_FUNC, "FUNC debugging is enabled");
+ PDEBUG(DBG_I2C, "I2C debugging is enabled");
+
+ /* disable planar mode support unless compression enabled */
+ if (isocMode != ISOC_MODE_COMPRESS ) {
+ // FIXME : not the right way to set supported flag
+ usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
+ usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
+ }
+
+ customdevice_process();
+
+ errCode = usb_register(&usbvision_driver);
+
+ if (errCode == 0) {
+ info(DRIVER_DESC " : " DRIVER_VERSION);
+ PDEBUG(DBG_PROBE, "success");
+ }
+ return errCode;
+}
+
+static void __exit usbvision_exit(void)
+{
+ PDEBUG(DBG_PROBE, "");
+
+ usb_deregister(&usbvision_driver);
+ PDEBUG(DBG_PROBE, "success");
+}
+
+module_init(usbvision_init);
+module_exit(usbvision_exit);
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */
--- /dev/null
+/*
+ * USBVISION.H
+ * usbvision header file
+ *
+ * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
+ *
+ * This module is part of usbvision driver project.
+ * Updates to driver completed by Dwaine P. Garden
+ *
+ * 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.
+ */
+
+
+#ifndef __LINUX_USBVISION_H
+#define __LINUX_USBVISION_H
+
+#include <linux/list.h>
+
+#ifndef VID_HARDWARE_USBVISION
+ #define VID_HARDWARE_USBVISION 34 /* USBVision Video Grabber */
+#endif
+
+#define USBVISION_PWR_REG 0x00
+ #define USBVISION_SSPND_EN (1 << 1)
+ #define USBVISION_RES2 (1 << 2)
+ #define USBVISION_PWR_VID (1 << 5)
+ #define USBVISION_E2_EN (1 << 7)
+#define USBVISION_CONFIG_REG 0x01
+#define USBVISION_ADRS_REG 0x02
+#define USBVISION_ALTER_REG 0x03
+#define USBVISION_FORCE_ALTER_REG 0x04
+#define USBVISION_STATUS_REG 0x05
+#define USBVISION_IOPIN_REG 0x06
+ #define USBVISION_IO_1 (1 << 0)
+ #define USBVISION_IO_2 (1 << 1)
+ #define USBVISION_AUDIO_IN 0
+ #define USBVISION_AUDIO_TV 1
+ #define USBVISION_AUDIO_RADIO 2
+ #define USBVISION_AUDIO_MUTE 3
+#define USBVISION_SER_MODE 0x07
+#define USBVISION_SER_ADRS 0x08
+#define USBVISION_SER_CONT 0x09
+#define USBVISION_SER_DAT1 0x0A
+#define USBVISION_SER_DAT2 0x0B
+#define USBVISION_SER_DAT3 0x0C
+#define USBVISION_SER_DAT4 0x0D
+#define USBVISION_EE_DATA 0x0E
+#define USBVISION_EE_LSBAD 0x0F
+#define USBVISION_EE_CONT 0x10
+#define USBVISION_DRM_CONT 0x12
+ #define USBVISION_REF (1 << 0)
+ #define USBVISION_RES_UR (1 << 2)
+ #define USBVISION_RES_FDL (1 << 3)
+ #define USBVISION_RES_VDW (1 << 4)
+#define USBVISION_DRM_PRM1 0x13
+#define USBVISION_DRM_PRM2 0x14
+#define USBVISION_DRM_PRM3 0x15
+#define USBVISION_DRM_PRM4 0x16
+#define USBVISION_DRM_PRM5 0x17
+#define USBVISION_DRM_PRM6 0x18
+#define USBVISION_DRM_PRM7 0x19
+#define USBVISION_DRM_PRM8 0x1A
+#define USBVISION_VIN_REG1 0x1B
+ #define USBVISION_8_422_SYNC 0x01
+ #define USBVISION_16_422_SYNC 0x02
+ #define USBVISION_VSNC_POL (1 << 3)
+ #define USBVISION_HSNC_POL (1 << 4)
+ #define USBVISION_FID_POL (1 << 5)
+ #define USBVISION_HVALID_PO (1 << 6)
+ #define USBVISION_VCLK_POL (1 << 7)
+#define USBVISION_VIN_REG2 0x1C
+ #define USBVISION_AUTO_FID (1 << 0)
+ #define USBVISION_NONE_INTER (1 << 1)
+ #define USBVISION_NOHVALID (1 << 2)
+ #define USBVISION_UV_ID (1 << 3)
+ #define USBVISION_FIX_2C (1 << 4)
+ #define USBVISION_SEND_FID (1 << 5)
+ #define USBVISION_KEEP_BLANK (1 << 7)
+#define USBVISION_LXSIZE_I 0x1D
+#define USBVISION_MXSIZE_I 0x1E
+#define USBVISION_LYSIZE_I 0x1F
+#define USBVISION_MYSIZE_I 0x20
+#define USBVISION_LX_OFFST 0x21
+#define USBVISION_MX_OFFST 0x22
+#define USBVISION_LY_OFFST 0x23
+#define USBVISION_MY_OFFST 0x24
+#define USBVISION_FRM_RATE 0x25
+#define USBVISION_LXSIZE_O 0x26
+#define USBVISION_MXSIZE_O 0x27
+#define USBVISION_LYSIZE_O 0x28
+#define USBVISION_MYSIZE_O 0x29
+#define USBVISION_FILT_CONT 0x2A
+#define USBVISION_VO_MODE 0x2B
+#define USBVISION_INTRA_CYC 0x2C
+#define USBVISION_STRIP_SZ 0x2D
+#define USBVISION_FORCE_INTRA 0x2E
+#define USBVISION_FORCE_UP 0x2F
+#define USBVISION_BUF_THR 0x30
+#define USBVISION_DVI_YUV 0x31
+#define USBVISION_AUDIO_CONT 0x32
+#define USBVISION_AUD_PK_LEN 0x33
+#define USBVISION_BLK_PK_LEN 0x34
+#define USBVISION_PCM_THR1 0x38
+#define USBVISION_PCM_THR2 0x39
+#define USBVISION_DIST_THR_L 0x3A
+#define USBVISION_DIST_THR_H 0x3B
+#define USBVISION_MAX_DIST_L 0x3C
+#define USBVISION_MAX_DIST_H 0x3D
+#define USBVISION_OP_CODE 0x33
+
+#define MAX_BYTES_PER_PIXEL 4
+
+#define MIN_FRAME_WIDTH 64
+#define MAX_USB_WIDTH 320 //384
+#define MAX_FRAME_WIDTH 320 //384 /*streching sometimes causes crashes*/
+
+#define MIN_FRAME_HEIGHT 48
+#define MAX_USB_HEIGHT 240 //288
+#define MAX_FRAME_HEIGHT 240 //288 /*Streching sometimes causes crashes*/
+
+#define MAX_FRAME_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * MAX_BYTES_PER_PIXEL)
+#define USBVISION_CLIPMASK_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT / 8) //bytesize of clipmask
+
+#define USBVISION_URB_FRAMES 32
+#define USBVISION_MAX_ISOC_PACKET_SIZE 959 // NT1003 Specs Document says 1023
+
+#define USBVISION_NUM_HEADERMARKER 20
+#define USBVISION_NUMFRAMES 2
+#define USBVISION_NUMSBUF 2
+
+#define USBVISION_POWEROFF_TIME 3 * (HZ) // 3 seconds
+
+/* This macro restricts an int variable to an inclusive range */
+#define RESTRICT_TO_RANGE(v,mi,ma) { if ((v) < (mi)) (v) = (mi); else if ((v) > (ma)) (v) = (ma); }
+
+/*
+ * We use macros to do YUV -> RGB conversion because this is
+ * very important for speed and totally unimportant for size.
+ *
+ * YUV -> RGB Conversion
+ * ---------------------
+ *
+ * B = 1.164*(Y-16) + 2.018*(V-128)
+ * G = 1.164*(Y-16) - 0.813*(U-128) - 0.391*(V-128)
+ * R = 1.164*(Y-16) + 1.596*(U-128)
+ *
+ * If you fancy integer arithmetics (as you should), hear this:
+ *
+ * 65536*B = 76284*(Y-16) + 132252*(V-128)
+ * 65536*G = 76284*(Y-16) - 53281*(U-128) - 25625*(V-128)
+ * 65536*R = 76284*(Y-16) + 104595*(U-128)
+ *
+ * Make sure the output values are within [0..255] range.
+ */
+#define LIMIT_RGB(x) (((x) < 0) ? 0 : (((x) > 255) ? 255 : (x)))
+#define YUV_TO_RGB_BY_THE_BOOK(my,mu,mv,mr,mg,mb) { \
+ int mm_y, mm_yc, mm_u, mm_v, mm_r, mm_g, mm_b; \
+ mm_y = (my) - 16; \
+ mm_u = (mu) - 128; \
+ mm_v = (mv) - 128; \
+ mm_yc= mm_y * 76284; \
+ mm_b = (mm_yc + 132252*mm_v ) >> 16; \
+ mm_g = (mm_yc - 53281*mm_u - 25625*mm_v ) >> 16; \
+ mm_r = (mm_yc + 104595*mm_u ) >> 16; \
+ mb = LIMIT_RGB(mm_b); \
+ mg = LIMIT_RGB(mm_g); \
+ mr = LIMIT_RGB(mm_r); \
+}
+
+
+
+/* Debugging aid */
+#define USBVISION_SAY_AND_WAIT(what) { \
+ wait_queue_head_t wq; \
+ init_waitqueue_head(&wq); \
+ printk(KERN_INFO "Say: %s\n", what); \
+ interruptible_sleep_on_timeout (&wq, HZ*3); \
+}
+
+/*
+ * This macro checks if usbvision is still operational. The 'usbvision'
+ * pointer must be valid, usbvision->dev must be valid, we are not
+ * removing the device and the device has not erred on us.
+ */
+#define USBVISION_IS_OPERATIONAL(udevice) (\
+ (udevice != NULL) && \
+ ((udevice)->dev != NULL) && \
+ ((udevice)->last_error == 0) && \
+ (!(udevice)->remove_pending))
+
+
+enum ScanState {
+ ScanState_Scanning, /* Scanning for header */
+ ScanState_Lines /* Parsing lines */
+};
+
+/* Completion states of the data parser */
+enum ParseState {
+ ParseState_Continue, /* Just parse next item */
+ ParseState_NextFrame, /* Frame done, send it to V4L */
+ ParseState_Out, /* Not enough data for frame */
+ ParseState_EndParse /* End parsing */
+};
+
+enum FrameState {
+ FrameState_Unused, /* Unused (no MCAPTURE) */
+ FrameState_Ready, /* Ready to start grabbing */
+ FrameState_Grabbing, /* In the process of being grabbed into */
+ FrameState_Done, /* Finished grabbing, but not been synced yet */
+ FrameState_DoneHold, /* Are syncing or reading */
+ FrameState_Error, /* Something bad happened while processing */
+};
+
+enum IsocState {
+ IsocState_InFrame, /* Isoc packet is member of frame */
+ IsocState_NoFrame, /* Isoc packet is not member of any frame */
+};
+
+struct usb_device;
+
+struct usbvision_sbuf {
+ char *data;
+ struct urb *urb;
+};
+
+#define USBVISION_MAGIC_1 0x55
+#define USBVISION_MAGIC_2 0xAA
+#define USBVISION_HEADER_LENGTH 0x0c
+#define USBVISION_SAA7111_ADDR 0x48
+#define USBVISION_SAA7113_ADDR 0x4a
+#define USBVISION_IIC_LRACK 0x20
+#define USBVISION_IIC_LRNACK 0x30
+#define USBVISION_FRAME_FORMAT_PARAM_INTRA (1<<7)
+
+static struct usbvision_v4l2_format_st {
+ int supported;
+ int bytes_per_pixel;
+ int depth;
+ int format;
+ char *desc;
+} usbvision_v4l2_format[] = {
+ { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" },
+ { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" },
+ { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" },
+ { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" },
+ { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" },
+ { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" },
+ { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 !
+ { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
+};
+#define USBVISION_SUPPORTED_PALETTES ARRAY_SIZE(usbvision_v4l2_format)
+
+struct usbvision_frame_header {
+ unsigned char magic_1; /* 0 magic */
+ unsigned char magic_2; /* 1 magic */
+ unsigned char headerLength; /* 2 */
+ unsigned char frameNum; /* 3 */
+ unsigned char framePhase; /* 4 */
+ unsigned char frameLatency; /* 5 */
+ unsigned char dataFormat; /* 6 */
+ unsigned char formatParam; /* 7 */
+ unsigned char frameWidthLo; /* 8 */
+ unsigned char frameWidthHi; /* 9 */
+ unsigned char frameHeightLo; /* 10 */
+ unsigned char frameHeightHi; /* 11 */
+ __u16 frameWidth; /* 8 - 9 after endian correction*/
+ __u16 frameHeight; /* 10 - 11 after endian correction*/
+};
+
+struct usbvision_frame {
+ char *data; /* Frame buffer */
+ struct usbvision_frame_header isocHeader; /* Header from stream */
+
+ int width; /* Width application is expecting */
+ int height; /* Height */
+
+ int frmwidth; /* Width the frame actually is */
+ int frmheight; /* Height */
+
+ volatile int grabstate; /* State of grabbing */
+ int scanstate; /* State of scanning */
+
+ int curline; /* Line of frame we're working on */
+
+ long scanlength; /* uncompressed, raw data length of frame */
+ long bytes_read; /* amount of scanlength that has been read from data */
+ struct usbvision_v4l2_format_st v4l2_format; /* format the user needs*/
+ int v4l2_linesize; /* bytes for one videoline*/
+ struct timeval timestamp;
+ wait_queue_head_t wq; /* Processes waiting */
+ int sequence; // How many video frames we send to user
+};
+
+#define CODEC_SAA7113 7113
+#define CODEC_SAA7111 7111
+#define BRIDGE_NT1003 1003
+#define BRIDGE_NT1004 1004
+#define BRIDGE_NT1005 1005
+
+/* Supported Devices: A table for usbvision.c*/
+
+static struct usbvision_device_data_st {
+ int idVendor;
+ int idProduct;
+ int Interface; /* to handle special interface number like BELKIN and Hauppauge WinTV-USB II */
+ int Codec;
+ int VideoChannels;
+ __u64 VideoNorm;
+ int AudioChannels;
+ int Radio;
+ int vbi;
+ int Tuner;
+ int TunerType;
+ int Vin_Reg1;
+ int Vin_Reg2;
+ int X_Offset;
+ int Y_Offset;
+ int Dvi_yuv;
+ char *ModelString;
+} usbvision_device_data[] = {
+ {0xFFF0, 0xFFF0, -1, CODEC_SAA7111, 3, V4L2_STD_NTSC, 1, 1, 1, 1, TUNER_PHILIPS_NTSC_M, -1, -1, -1, -1, -1, "Custom Dummy USBVision Device"},
+ {0x0A6F, 0x0400, -1, CODEC_SAA7113, 4, V4L2_STD_NTSC, 1, 0, 1, 0, 0, -1, -1, -1, -1, -1, "Xanboo"},
+ {0x050D, 0x0208, -1, CODEC_SAA7113, 2, V4L2_STD_PAL, 1, 0, 1, 0, 0, -1, -1, 0, 3, 7, "Belkin USBView II"},
+ {0x0571, 0x0002, 0, CODEC_SAA7111, 2, V4L2_STD_PAL, 0, 0, 1, 0, 0, -1, -1, -1, -1, 7, "echoFX InterView Lite"},
+ {0x0573, 0x0003, -1, CODEC_SAA7111, 2, V4L2_STD_NTSC, 1, 0, 1, 0, 0, -1, -1, -1, -1, -1, "USBGear USBG-V1 resp. HAMA USB"},
+ {0x0573, 0x0400, -1, CODEC_SAA7113, 4, V4L2_STD_NTSC, 0, 0, 1, 0, 0, -1, -1, 0, 3, 7, "D-Link V100"},
+ {0x0573, 0x2000, -1, CODEC_SAA7111, 2, V4L2_STD_NTSC, 1, 0, 1, 0, 0, -1, -1, -1, -1, -1, "X10 USB Camera"},
+ {0x0573, 0x2d00, -1, CODEC_SAA7111, 2, V4L2_STD_PAL, 1, 0, 1, 0, 0, -1, -1, -1, 3, 7, "Osprey 50"},
+ {0x0573, 0x2d01, -1, CODEC_SAA7113, 2, V4L2_STD_NTSC, 0, 0, 1, 0, 0, -1, -1, 0, 3, 7, "Hauppauge USB-Live Model 600"},
+ {0x0573, 0x2101, -1, CODEC_SAA7113, 2, V4L2_STD_PAL, 2, 0, 1, 0, 0, -1, -1, 0, 3, 7, "Zoran Co. PMD (Nogatech) AV-grabber Manhattan"},
+ {0x0573, 0x4100, -1, CODEC_SAA7111, 3, V4L2_STD_NTSC, 1, 1, 1, 1, TUNER_PHILIPS_NTSC_M, -1, -1, -1, 20, -1, "Nogatech USB-TV (NTSC) FM"},
+ {0x0573, 0x4110, -1, CODEC_SAA7111, 3, V4L2_STD_NTSC, 1, 1, 1, 1, TUNER_PHILIPS_NTSC_M, -1, -1, -1, 20, -1, "PNY USB-TV (NTSC) FM"},
+ {0x0573, 0x4450, 0, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_PHILIPS_PAL, -1, -1, 0, 3, 7, "PixelView PlayTv-USB PRO (PAL) FM"},
+ {0x0573, 0x4550, 0, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_PHILIPS_PAL, -1, -1, 0, 3, 7, "ZTV ZT-721 2.4GHz USB A/V Receiver"},
+ {0x0573, 0x4d00, -1, CODEC_SAA7111, 3, V4L2_STD_NTSC, 1, 0, 1, 1, TUNER_PHILIPS_NTSC_M, -1, -1, -1, 20, -1, "Hauppauge WinTv-USB USA"},
+ {0x0573, 0x4d01, -1, CODEC_SAA7111, 3, V4L2_STD_NTSC, 1, 0, 1, 1, TUNER_PHILIPS_NTSC_M, -1, -1, -1, -1, -1, "Hauppauge WinTv-USB"},
+ {0x0573, 0x4d02, -1, CODEC_SAA7111, 3, V4L2_STD_NTSC, 1, 0, 1, 1, TUNER_PHILIPS_NTSC_M, -1, -1, -1, -1, -1, "Hauppauge WinTv-USB (NTSC)"},
+ {0x0573, 0x4d03, -1, CODEC_SAA7111, 3, V4L2_STD_SECAM, 1, 0, 1, 1, TUNER_PHILIPS_SECAM, -1, -1, -1, -1, -1, "Hauppauge WinTv-USB (SECAM) "},
+ {0x0573, 0x4d10, -1, CODEC_SAA7111, 3, V4L2_STD_NTSC, 1, 1, 1, 1, TUNER_PHILIPS_NTSC_M, -1, -1, -1, -1, -1, "Hauppauge WinTv-USB (NTSC) FM"},
+ {0x0573, 0x4d11, -1, CODEC_SAA7111, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_PHILIPS_PAL, -1, -1, -1, -1, -1, "Hauppauge WinTv-USB (PAL) FM"},
+ {0x0573, 0x4d12, -1, CODEC_SAA7111, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_PHILIPS_PAL, -1, -1, -1, -1, -1, "Hauppauge WinTv-USB (PAL) FM"},
+ {0x0573, 0x4d2a, 0, CODEC_SAA7113, 3, V4L2_STD_NTSC, 1, 1, 1, 1, TUNER_MICROTUNE_4049FM5, -1, -1, 0, 3, 7, "Hauppauge WinTv USB (NTSC) FM Model 602 40201 Rev B285"},
+ {0x0573, 0x4d2b, 0, CODEC_SAA7113, 3, V4L2_STD_NTSC, 1, 1, 1, 1, TUNER_MICROTUNE_4049FM5, -1, -1, 0, 3, 7, "Hauppauge WinTv USB (NTSC) FM Model 602 40201 Rev B282"},
+ {0x0573, 0x4d2c, 0, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 0, 1, 1, TUNER_PHILIPS_FM1216ME_MK3, -1, -1, 0, 3, 7, "Hauppauge WinTv USB (PAL/SECAM) 40209 Rev E1A5"},
+ {0x0573, 0x4d20, 0, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_PHILIPS_PAL, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB II (PAL) FM Model 40201 Rev B226"},
+ {0x0573, 0x4d21, 0, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 0, 1, 1, TUNER_PHILIPS_PAL, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB II (PAL)"},
+ {0x0573, 0x4d22, 0, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 0, 1, 1, TUNER_PHILIPS_PAL, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB II (PAL) MODEL 566"},
+ {0x0573, 0x4d23, -1, CODEC_SAA7113, 3, V4L2_STD_SECAM, 1, 0, 1, 1, TUNER_PHILIPS_SECAM, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB (SECAM) 4D23"},
+ {0x0573, 0x4d25, -1, CODEC_SAA7113, 3, V4L2_STD_SECAM, 1, 0, 1, 1, TUNER_PHILIPS_SECAM, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB (SECAM) Model 40209 Rev B234"},
+ {0x0573, 0x4d26, -1, CODEC_SAA7113, 3, V4L2_STD_SECAM, 1, 0, 1, 1, TUNER_PHILIPS_SECAM, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB (SECAM) Model 40209 Rev B243"},
+ {0x0573, 0x4d27, -1, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 0, 1, 1, TUNER_ALPS_TSBE1_PAL, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB Model 40204 Rev B281"},
+ {0x0573, 0x4d28, -1, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 0, 1, 1, TUNER_ALPS_TSBE1_PAL, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB Model 40204 Rev B283"},
+ {0x0573, 0x4d29, -1, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 0, 1, 1, TUNER_PHILIPS_PAL, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB Model 40205 Rev B298"},
+ {0x0573, 0x4d30, -1, CODEC_SAA7113, 3, V4L2_STD_NTSC, 1, 1, 1, 1, TUNER_PHILIPS_NTSC_M, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB FM Model 40211 Rev B123"},
+ {0x0573, 0x4d31, 0, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_PHILIPS_PAL, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB III (PAL) FM Model 568"},
+ {0x0573, 0x4d32, 0, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_PHILIPS_PAL, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB III (PAL) FM Model 573"},
+ {0x0573, 0x4d35, 0, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_MICROTUNE_4049FM5, -1, -1, 0, 3, 7, "Hauppauge WinTv-USB III (PAL) FM Model 40219 Rev B252"},
+ {0x0573, 0x4d37, 0, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_PHILIPS_FM1216ME_MK3, -1, -1, 0, 3, 7, "Hauppauge WinTV USB device Model 40219 Rev E189"},
+ {0x0768, 0x0006, -1, CODEC_SAA7113, 3, V4L2_STD_NTSC, 1, 1, 1, 1, TUNER_PHILIPS_NTSC_M, -1, -1, 5, 5, -1, "Camtel Technology USB TV Genie Pro FM Model TVB330"},
+ {0x07d0, 0x0001, -1, CODEC_SAA7113, 2, V4L2_STD_PAL, 0, 0, 1, 0, 0, -1, -1, 0, 3, 7, "Digital Video Creator I"},
+ {0x07d0, 0x0002, -1, CODEC_SAA7111, 2, V4L2_STD_NTSC, 0, 0, 1, 0, 0, -1, -1, 82, 20, 7, "Global Village GV-007 (NTSC)"},
+ {0x07d0, 0x0003, 0, CODEC_SAA7113, 2, V4L2_STD_NTSC, 0, 0, 1, 0, 0, -1, -1, 0, 3, 7, "Dazzle Fusion Model DVC-50 Rev 1 (NTSC)"},
+ {0x07d0, 0x0004, 0, CODEC_SAA7113, 2, V4L2_STD_PAL, 0, 0, 1, 0, 0, -1, -1, 0, 3, 7, "Dazzle Fusion Model DVC-80 Rev 1 (PAL)"},
+ {0x07d0, 0x0005, 0, CODEC_SAA7113, 2, V4L2_STD_SECAM, 0, 0, 1, 0, 0, -1, -1, 0, 3, 7, "Dazzle Fusion Model DVC-90 Rev 1 (SECAM)"},
+ {0x2304, 0x010d, -1, CODEC_SAA7111, 3, V4L2_STD_PAL, 1, 0, 0, 1, TUNER_TEMIC_4066FY5_PAL_I, -1, -1, -1, -1, -1, "Pinnacle Studio PCTV USB (PAL)"},
+ {0x2304, 0x0109, -1, CODEC_SAA7111, 3, V4L2_STD_SECAM, 1, 0, 1, 1, TUNER_PHILIPS_SECAM, -1, -1, -1, -1, -1, "Pinnacle Studio PCTV USB (SECAM)"},
+ {0x2304, 0x0110, -1, CODEC_SAA7111, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_PHILIPS_PAL, -1, -1,128, 23, -1, "Pinnacle Studio PCTV USB (PAL) FM"},
+ {0x2304, 0x0111, -1, CODEC_SAA7111, 3, V4L2_STD_PAL, 1, 0, 1, 1, TUNER_PHILIPS_PAL, -1, -1, -1, -1, -1, "Miro PCTV USB"},
+ {0x2304, 0x0112, -1, CODEC_SAA7111, 3, V4L2_STD_NTSC, 1, 1, 1, 1, TUNER_PHILIPS_NTSC_M, -1, -1, -1, -1, -1, "Pinnacle Studio PCTV USB (NTSC) FM"},
+ {0x2304, 0x0210, -1, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_TEMIC_4009FR5_PAL, -1, -1, 0, 3, 7, "Pinnacle Studio PCTV USB (PAL) FM"},
+ {0x2304, 0x0212, -1, CODEC_SAA7111, 3, V4L2_STD_NTSC, 1, 1, 1, 1, TUNER_TEMIC_4039FR5_NTSC, -1, -1, 0, 3, 7, "Pinnacle Studio PCTV USB (NTSC) FM"},
+ {0x2304, 0x0214, -1, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_TEMIC_4009FR5_PAL, -1, -1, 0, 3, 7, "Pinnacle Studio PCTV USB (PAL) FM"},
+ {0x2304, 0x0300, -1, CODEC_SAA7113, 2, V4L2_STD_NTSC, 1, 0, 1, 0, 0, -1, -1, 0, 3, 7, "Pinnacle Studio Linx Video input cable (NTSC)"},
+ {0x2304, 0x0301, -1, CODEC_SAA7113, 2, V4L2_STD_PAL, 1, 0, 1, 0, 0, -1, -1, 0, 3, 7, "Pinnacle Studio Linx Video input cable (PAL)"},
+ {0x2304, 0x0419, -1, CODEC_SAA7113, 3, V4L2_STD_PAL, 1, 1, 1, 1, TUNER_TEMIC_4009FR5_PAL, -1, -1, 0, 3, 7, "Pinnacle PCTV Bungee USB (PAL) FM"},
+ {0x2400, 0x4200, -1, CODEC_SAA7111, 3, VIDEO_MODE_NTSC, 1, 0, 1, 1, TUNER_PHILIPS_NTSC_M, -1, -1, -1, -1, -1, "Hauppauge WinTv-USB"},
+ {} /* Terminating entry */
+};
+
+
+/* Supported Devices: A table for the usb.c*/
+
+static struct usb_device_id usbvision_table [] = {
+ { USB_DEVICE(0xFFF0, 0xFFF0) }, /* Custom Dummy USBVision Device */
+ { USB_DEVICE(0x0A6F, 0x0400) }, /* Xanboo */
+ { USB_DEVICE(0x050d, 0x0208) }, /* Belkin USBView II */
+ { USB_DEVICE(0x0571, 0x0002) }, /* echoFX InterView Lite */
+ { USB_DEVICE(0x0573, 0x0003) }, /* USBGear USBG-V1 */
+ { USB_DEVICE(0x0573, 0x0400) }, /* D-Link V100 */
+ { USB_DEVICE(0x0573, 0x2000) }, /* X10 USB Camera */
+ { USB_DEVICE(0x0573, 0x2d00) }, /* Osprey 50 */
+ { USB_DEVICE(0x0573, 0x2d01) }, /* Hauppauge USB-Live Model 600 */
+ { USB_DEVICE(0x0573, 0x2101) }, /* Zoran Co. PMD (Nogatech) AV-grabber Manhattan */
+ { USB_DEVICE(0x0573, 0x4100) }, /* Nogatech USB-TV FM (NTSC) */
+ { USB_DEVICE(0x0573, 0x4110) }, /* PNY USB-TV (NTSC) FM */
+ { USB_DEVICE(0x0573, 0x4450) }, /* PixelView PlayTv-USB PRO (PAL) FM */
+ { USB_DEVICE(0x0573, 0x4550) }, /* ZTV ZT-721 2.4GHz USB A/V Receiver */
+ { USB_DEVICE(0x0573, 0x4d00) }, /* Hauppauge WinTv-USB USA */
+ { USB_DEVICE(0x0573, 0x4d01) }, /* Hauppauge WinTv-USB */
+ { USB_DEVICE(0x0573, 0x4d02) }, /* Hauppauge WinTv-USB UK */
+ { USB_DEVICE(0x0573, 0x4d03) }, /* Hauppauge WinTv-USB France */
+ { USB_DEVICE(0x0573, 0x4d10) }, /* Hauppauge WinTv-USB with FM USA radio */
+ { USB_DEVICE(0x0573, 0x4d11) }, /* Hauppauge WinTv-USB (PAL) with FM radio */
+ { USB_DEVICE(0x0573, 0x4d12) }, /* Hauppauge WinTv-USB UK with FM Radio */
+ { USB_DEVICE(0x0573, 0x4d2a) }, /* Hauppague WinTv USB Model 602 40201 Rev B285 */
+ { USB_DEVICE(0x0573, 0x4d2b) }, /* Hauppague WinTv USB Model 602 40201 Rev B282 */
+ { USB_DEVICE(0x0573, 0x4d2c) }, /* Hauppague WinTv USB Model 40209 Rev. E1A5 PAL*/
+ { USB_DEVICE(0x0573, 0x4d20) }, /* Hauppauge WinTv-USB II (PAL) FM Model 40201 Rev B226 */
+ { USB_DEVICE(0x0573, 0x4d21) }, /* Hauppauge WinTv-USB II (PAL) with FM radio*/
+ { USB_DEVICE(0x0573, 0x4d22) }, /* Hauppauge WinTv-USB II (PAL) Model 566 */
+ { USB_DEVICE(0x0573, 0x4d23) }, /* Hauppauge WinTv-USB France 4D23*/
+ { USB_DEVICE(0x0573, 0x4d25) }, /* Hauppauge WinTv-USB Model 40209 rev B234 */
+ { USB_DEVICE(0x0573, 0x4d26) }, /* Hauppauge WinTv-USB Model 40209 Rev B243 */
+ { USB_DEVICE(0x0573, 0x4d27) }, /* Hauppauge WinTv-USB Model 40204 Rev B281 */
+ { USB_DEVICE(0x0573, 0x4d28) }, /* Hauppauge WinTv-USB Model 40204 Rev B283 */
+ { USB_DEVICE(0x0573, 0x4d29) }, /* Hauppauge WinTv-USB Model 40205 Rev B298 */
+ { USB_DEVICE(0x0573, 0x4d30) }, /* Hauppauge WinTv-USB FM Model 40211 Rev B123 */
+ { USB_DEVICE(0x0573, 0x4d31) }, /* Hauppauge WinTv-USB III (PAL) with FM radio Model 568 */
+ { USB_DEVICE(0x0573, 0x4d32) }, /* Hauppauge WinTv-USB III (PAL) FM Model 573 */
+ { USB_DEVICE(0x0573, 0x4d35) }, /* Hauppauge WinTv-USB III (SECAM) FM Model 40219 Rev B252 */
+ { USB_DEVICE(0x0573, 0x4d37) }, /* Hauppauge WinTv-USB Model 40219 Rev E189 */
+ { USB_DEVICE(0x0768, 0x0006) }, /* Camtel Technology USB TV Genie Pro FM Model TVB330 */
+ { USB_DEVICE(0x07d0, 0x0001) }, /* Digital Video Creator I */
+ { USB_DEVICE(0x07d0, 0x0002) }, /* Global Village GV-007 (NTSC) */
+ { USB_DEVICE(0x07d0, 0x0003) }, /* Dazzle Fusion Model DVC-50 Rev 1 (NTSC) */
+ { USB_DEVICE(0x07d0, 0x0004) }, /* Dazzle Fusion Model DVC-80 Rev 1 (PAL) */
+ { USB_DEVICE(0x07d0, 0x0005) }, /* Dazzle Fusion Model DVC-90 Rev 1 (SECAM) */
+ { USB_DEVICE(0x2304, 0x010d) }, /* Pinnacle Studio PCTV USB (PAL) */
+ { USB_DEVICE(0x2304, 0x0109) }, /* Pinnacle Studio PCTV USB (SECAM) */
+ { USB_DEVICE(0x2304, 0x0110) }, /* Pinnacle Studio PCTV USB (PAL) */
+ { USB_DEVICE(0x2304, 0x0111) }, /* Miro PCTV USB */
+ { USB_DEVICE(0x2304, 0x0112) }, /* Pinnacle Studio PCTV USB (NTSC) with FM radio */
+ { USB_DEVICE(0x2304, 0x0210) }, /* Pinnacle Studio PCTV USB (PAL) with FM radio */
+ { USB_DEVICE(0x2304, 0x0212) }, /* Pinnacle Studio PCTV USB (NTSC) with FM radio */
+ { USB_DEVICE(0x2304, 0x0214) }, /* Pinnacle Studio PCTV USB (PAL) with FM radio */
+ { USB_DEVICE(0x2304, 0x0300) }, /* Pinnacle Studio Linx Video input cable (NTSC) */
+ { USB_DEVICE(0x2304, 0x0301) }, /* Pinnacle Studio Linx Video input cable (PAL) */
+ { USB_DEVICE(0x2304, 0x0419) }, /* Pinnacle PCTV Bungee USB (PAL) FM */
+
+ { USB_DEVICE(0x2400, 0x4200) }, /* Hauppauge WinTv-USB2 Model 42012 */
+
+ { } /* Terminating entry */
+};
+
+
+#define USBVISION_I2C_CLIENTS_MAX 8
+
+struct usb_usbvision {
+ struct video_device *vdev; /* Video Device */
+ struct video_device *rdev; /* Radio Device */
+ struct video_device *vbi; /* VBI Device */
+ struct video_audio audio_dev; /* Current audio params */
+
+ /* i2c Declaration Section*/
+ struct i2c_adapter i2c_adap;
+ struct i2c_algo_usb_data i2c_algo;
+ struct i2c_client i2c_client;
+ int i2c_state, i2c_ok;
+ struct i2c_client *i2c_clients[USBVISION_I2C_CLIENTS_MAX];
+
+ struct urb *ctrlUrb;
+ unsigned char ctrlUrbBuffer[8];
+ int ctrlUrbBusy;
+ struct usb_ctrlrequest ctrlUrbSetup;
+ wait_queue_head_t ctrlUrb_wq; // Processes waiting
+ struct semaphore ctrlUrbLock;
+
+ int have_tuner;
+ int tuner_type;
+ int bridgeType; // NT1003, NT1004, NT1005
+ int channel;
+ int radio;
+ int video_inputs; // # of inputs
+ unsigned long freq;
+ int AudioMute;
+ int AudioChannel;
+ int isocMode; // format of video data for the usb isoc-transfer
+ unsigned int nr; // Number of the device < MAX_USBVISION
+
+ /* Device structure */
+ struct usb_device *dev;
+ unsigned char iface; /* Video interface number */
+ unsigned char ifaceAltActive, ifaceAltInactive; /* Alt settings */
+ unsigned char Vin_Reg2_Preset;
+ struct semaphore lock;
+ struct timer_list powerOffTimer;
+ struct work_struct powerOffWork;
+ int power; /* is the device powered on? */
+ int user; /* user count for exclusive use */
+ int usbvision_used; /* Is this structure in use? */
+ int initialized; /* Had we already sent init sequence? */
+ int DevModel; /* What type of USBVISION device we got? */
+ int streaming; /* Are we streaming Isochronous? */
+ int last_error; /* What calamity struck us? */
+ int curwidth; /* width of the frame the device is currently set to*/
+ int curheight; /* height of the frame the device is currently set to*/
+ int stretch_width; /* stretch-factor for frame width (from usb to screen)*/
+ int stretch_height; /* stretch-factor for frame height (from usb to screen)*/
+ char *fbuf; /* Videodev buffer area for mmap*/
+ int max_frame_size; /* Bytes in one video frame */
+ int fbuf_size; /* Videodev buffer size */
+ int curFrameNum; // number of current frame in frame buffer mode
+ struct usbvision_frame *curFrame; // pointer to current frame, set by usbvision_find_header
+ struct usbvision_frame frame[USBVISION_NUMFRAMES]; // frame buffer
+ int curSbufNum; // number of current receiving sbuf
+ struct usbvision_sbuf sbuf[USBVISION_NUMSBUF]; // S buffering
+ volatile int remove_pending; /* If set then about to exit */
+
+ /* Scratch space from the Isochronous Pipe.*/
+ unsigned char *scratch;
+ int scratch_read_ptr;
+ int scratch_write_ptr;
+ int scratch_headermarker[USBVISION_NUM_HEADERMARKER];
+ int scratch_headermarker_read_ptr;
+ int scratch_headermarker_write_ptr;
+ int isocstate;
+ /* color controls */
+ int saturation;
+ int hue;
+ int brightness;
+ int contrast;
+ int depth;
+ struct usbvision_v4l2_format_st palette;
+
+ struct v4l2_capability vcap; /* Video capabilities */
+ struct v4l2_input input; /* May be used for tuner support */
+ unsigned char video_endp; /* 0x82 for USBVISION devices based */
+
+ // Overlay stuff:
+ struct v4l2_framebuffer vid_buf;
+ struct v4l2_format vid_win;
+ int vid_buf_valid; // Status: video buffer is valid (set)
+ int vid_win_valid; // Status: video window is valid (set)
+ int overlay; /*Status: Are we overlaying? */
+ unsigned int clipmask[USBVISION_CLIPMASK_SIZE / 4];
+ unsigned char *overlay_base; /* Virtual base address of video buffer */
+ unsigned char *overlay_win; /* virt start address of overlay window */
+ struct usbvision_frame overlay_frame;
+
+ // Decompression stuff:
+ unsigned char *IntraFrameBuffer; /* Buffer for reference frame */
+ int BlockPos; //for test only
+ int requestIntra; // 0 = normal; 1 = intra frame is requested;
+ int lastIsocFrameNum; // check for lost isoc frames
+ int isocPacketSize; // need to calculate usedBandwidth
+ int usedBandwidth; // used bandwidth 0-100%, need to set comprLevel
+ int comprLevel; // How strong (100) or weak (0) is compression
+ int lastComprLevel; // How strong (100) or weak (0) was compression
+ int usb_bandwidth; /* Mbit/s */
+
+ /* /proc entries, relative to /proc/video/usbvision/ */
+ struct proc_dir_entry *proc_devdir; /* Per-device proc directory */
+ struct proc_dir_entry *proc_info; /* <minor#>/info entry */
+ struct proc_dir_entry *proc_register; /* <minor#>/register entry */
+ struct proc_dir_entry *proc_freq; /* <minor#>/freq entry */
+ struct proc_dir_entry *proc_input; /* <minor#>/input entry */
+ struct proc_dir_entry *proc_frame; /* <minor#>/frame entry */
+ struct proc_dir_entry *proc_button; /* <minor#>/button entry */
+ struct proc_dir_entry *proc_control; /* <minor#>/control entry */
+
+ /* Statistics that can be overlayed on the screen */
+ unsigned long isocUrbCount; // How many URBs we received so far
+ unsigned long urb_length; /* Length of last URB */
+ unsigned long isocDataCount; /* How many bytes we received */
+ unsigned long header_count; /* How many frame headers we found */
+ unsigned long scratch_ovf_count; /* How many times we overflowed scratch */
+ unsigned long isocSkipCount; /* How many empty ISO packets received */
+ unsigned long isocErrCount; /* How many bad ISO packets received */
+ unsigned long isocPacketCount; // How many packets we totally got
+ unsigned long timeInIrq; // How long do we need for interrupt
+ int isocMeasureBandwidthCount;
+ int frame_num; // How many video frames we send to user
+ int maxStripLen; // How big is the biggest strip
+ int comprBlockPos;
+ int stripLenErrors; // How many times was BlockPos greater than StripLen
+ int stripMagicErrors;
+ int stripLineNumberErrors;
+ int ComprBlockTypes[4];
+};
+
+#endif /* __LINUX_USBVISION_H */
+
projects / linux-2.6 / commitdiff