2 * USB USBVISION Video device driver 0.9.8.3cvs (For Kernel 2.4.19-2.4.32 + 2.6.0-2.6.16)
6 * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
8 * This module is part of usbvision driver project.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 * Let's call the version 0.... until compression decoding is completely
27 * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach.
28 * It was based on USB CPiA driver written by Peter Pregler,
29 * Scott J. Bertin and Johannes Erdfelt
30 * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler &
31 * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink
32 * Updates to driver completed by Dwaine P. Garden
36 * Mar. 2000 - 15.12.2000: (0.0.0 - 0.2.0)
37 * Several alpha drivers and the first beta.
39 * Since Dec. 2000: (0.2.1) or (v2.1)
40 * Code changes or updates by Dwaine Garden and every other person.
42 * Added: New Hauppauge TV device Vendor ID: 0x0573
44 * (Thanks to Giovanni Garberoglio)
46 * Added: UK Hauppauge WinTV-USB Vendor ID: 0x0573
48 * (Thanks to Derek Freeman-Jones)
50 * Feb, 2001 - Apr 08, 2001: (0.3.0)
51 * - Some fixes. Driver is now more stable.
52 * - Scratch is organized as ring-buffer now for better performance
53 * - DGA (overlay) is now supported.
54 * !!!!Danger!!!! Clipping is not yet implemented. Your system will
55 * crash if your video window leaves the screen!!!
56 * - Max. Framesize is set to 320x240. There isn't more memory on the
57 * nt1003 video device for the FIFO.
58 * - Supported video palettes: RGB565, RGB555, RGB24, RGB32
61 * Apr 15, 2001: (0.3.1-test...)
62 * - Clipping is implemented
63 * - NTSC is now coloured (Thanks to Dwaine Garden)
64 * - Added SECAM colour detection in saa7111-new
65 * - Added: French Hauppauge WinTV USB Vendor ID: 0x0573
67 * (Thanks to Julius Hrivnac)
68 * - Added: US Hauppauge WINTV USB Vendor ID: 0x0573
70 * (Thanks to Derrick J Brashear)
71 * - Changes for adding new devices. There's now a table in usbvision.h.
72 * Adding your devices data to the usbvision_device_data table is all
73 * you need to add a new device.
75 * May 11, 2001: (0.3.2-test...) (Thanks to Derek Freeman-Jones)
76 * - Support YUV422 raw format for people with hardware scaling.
77 * - Only power on the device when opened (use option PowerOnAtOpen=0 to disable it).
78 * - Turn off audio so we can listen to Line In.
80 * July 5, 2001 - (Patch the driver to run with Kernel 2.4.6)
81 * - Fixed a problem with the number of parameters passed to video_register_device.
83 * July 6, 2001 - Added: HAUPPAUGE WINTV-USB FM USA Vendor ID: 0x0573
85 * (Thanks to Braddock Gaskill)
86 * Added: USBGear USBG-V1 resp. HAMA USB
89 * (Thanks to Bradley A. Singletary and Juergen Weigert)
91 * Jan 24, 2002 - (0.3.3-test...)
92 * - Moved all global variables that are device specific the usb_usbvision struct
93 * - Fixed the 64x48 unchangable image in xawtv when starting it with overlay
94 * - Add VideoNorm and TunerType to the usb_device_data table
95 * - Checked the audio channels and mute for HAUPPAUGE WinTV USB FM
96 * - Implemented the power on when opening the device. But some software opens
97 * the device several times when starting. So the i2c parts are just registered
98 * by an open, when they become deregistered by the next close. You can speed
99 * up tuner detection, when adding "options tuner addr=your_addr" to /etc/modules.conf
100 * - Begin to resize the frame in width and height. So it will be possible to watch i.e.
101 * 384x288 pixels at 23 fps.
104 * - Added radio device
107 * Jul 30, 2002 - (Thanks Cameron Maxwell)
108 * - Changes to usbvision.h --fixed usbvision device data structure, incorrectly had (0x0573, 0x4d21) for WinTV-USB II, should be 0x4d20.
109 * - Changes for device WinTV-USB II (0x0573. 0x4D21). It does not have a FM tuner.
110 * - Added the real device HAUPPAUGE WINTV-USB II (PAL) to the device structure in usbvision.h.
111 * - Changes to saa7113-new, the video is 8 bit data for the Phillips SAA7113 not 16bit like SAA7111.
112 * - Tuned lots of setup registers for the Phillips SAA7113 video chipset.
113 * - Changes to the supplied makefile. (Dwaine Garden) Still needs to be fixed so it will compile modules on different distrubutions.
116 * Aug 10, 2002 - (Thanks Mike Klinke)
117 * - Changes to usbvision.txt -- Fixed instructions on the location to copy the contents of the tgz file.
118 * - 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.
120 * Aug 12, 2002 - Dwaine Garden
121 * - Added the ability to read the NT100x chip for the MaxISOPacketLength and USB Bandwidth
122 * Setting of the video device.
123 * - Adjustments to the SAA7113H code for proper video output.
124 * - Changes to usbvision.h, so all the devices with FM tuners are working.
126 * Feb 10, 2003 - Joerg Heckenbach
127 * - fixed endian bug for Motorola PPC
129 * Feb 13, 2003 - Joerg Heckenbach
130 * - fixed Vin_Reg setting and presetting from usbvision_device_data()
132 * Apr 19, 2003 - Dwaine Garden
133 * - Fixed compiling errors under RedHat v9.0. from uvirt_to_kva and usbvision_mmap. (Thanks Cameron Maxwell)
134 * - Changed pte_offset to pte_offset_kernel.
135 * - Changed remap_page_range and added additional parameter to function.
136 * - Change setup parameters for the D-Link V100 USB device
137 * - Added a new device to the usbvision driver. Pinnacle Studio PCTV USB (PAL) 0x2304 0x0110
138 * - Screwed up the sourceforge.net cvs respository! 8*)
140 * Apr 22, 2002 - Dwaine Garden
141 * - Added a new device to the usbvision driver. Dazzle DVC-80 (PAL) 0x07d0 0x0004. (Thanks Carl Anderson)
142 * - Changes to some of the comments.
144 * June 06, 2002 - Ivan, Dwaine Garden
145 * - Ivan updates for fine tuning device parameters without driver recompiling. (Ivan)
146 * - Changes to some of the comments. (Dwaine Garden)
147 * - Changes to the makefile - Better CPU settings. (Ivan)
148 * - Changes to device Hauppauge WinTv-USB III (PAL) FM Model 568 - Fine tuning parameters (Ivan)
151 * Oct 16, 2003 - 0.9.0 - Joerg Heckenbach
152 * - Implementation of the first part of the decompression algorithm for intra frames.
153 * The resolution has to be 320x240. A dynamic adaption of compression deepth is
156 * Oct 22, 2003 - 0.9.1 - Joerg Heckenbach
157 * - Implementation of the decompression algorithm for inter frames.
158 * The resolution still has to be 320x240.
160 * Nov 2003 - Feb 2004 - 0.9.2 to 0.9.3 - Joerg Heckenbach
161 * - Implement last unknown compressed block type. But color is still noisy.
162 * - Finding criteria for adaptive compression adjustment.
163 * - Porting to 2.6 kernels, but still working under 2.4
165 * Feb 04, 2004 - 0.9.4 Joerg Heckenbach
166 * - Found bug in color decompression. Color is OK now.
168 * Feb 09, 2004 - 0.9.5 Joerg Heckenbach
169 * - Add auto-recognition of chip type NT1003 or NT1004.
170 * - Add adaptive compression adjustment.
171 * - Patched saa7113 multiplexer switching (Thanks to Orlando F.S. Bordoni)
173 * Feb 24, 2004 - 0.9.6 Joerg Heckenbach
174 * - Add a timer to wait before poweroff at close, to save start time in
175 * some video applications
177 * Mar 4, 2004 - 0.9.6 Dwaine Garden
178 * - Added device Global Village GV-007 (NTSC) to usbvision.h (Thanks to Abe Skolnik)
179 * - Forgot to add this device to the driver. 8*)
181 * June 2, 2004 - 0.9.6 Dwaine Garden
182 * - Fixed sourceforge.net cvs repository.
183 * - 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.
184 * - Added device Hauppauge WinTv-USB III (PAL) FM Model 597 to usbvision.h
186 * July 1, 2004 -0.9.6 Dwaine Garden
187 * - Patch was submitted by Hal Finkel to fix the problem with the tuner not working under kernel 2.6.7.
190 * July 30, 2004 - 0.9.6 Dwaine Garden
191 * - Patch was submitted by Tobias Diaz to fix Model ID mismatch in usbvision.h.
194 * August 12, 2004 - 0.9.6 Dwaine Garden
195 * - 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!
196 * - Added new device "Camtel Technology Corp TVB330-USB FM".
197 * - Sourceforge.net CVS has been updated with all the changes.
199 * August 20, 2004 - 0.9.7 Dwaine Garden
200 * - Added Device "Hauppauge USB Live Model 600"
201 * - 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.
202 * - Sourceforge.net CVS has been updated with all the changes.
203 * - Clean up the driver.
205 * September 13, 2004 - 0.9.8 Dwaine Garden
206 * - 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.
207 * - 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.
208 * - Removed some commented out code. Clean up.
209 * - Tried to fix up the annoying empty directories in the sourceforge.net cvs. Fuck it up again. 8*(
211 * November 15, 2004 - 0.9.8 Dwaine Garden
212 * - Release new tar - 0.9.8 on sourceforge.net
213 * - Added some new devices to usbvision.h WinTV USB Model 602 40201 Rev B282, Hauppague WinTV USB Model 602 40201 Rev B285
214 * - Added better compatibility for 2.6.x kernels.
215 * - Hardware full screen scaling in grabdisplay mode.
216 * - Better support for sysfs. More code to follow for both video device and radio device. Device information is located at /sys/class/video4linux/video0
217 * - Added module_param so loaded module parameters are displayed in sysfs. Driver parameters should show up in /sys/module/usbvision
218 * - Adjusted the SAA7111 registers to match the 2.6.x kernel SAA7111 code. Thanks to the person which helped test.
219 * - Changed to wait_event_interruptible. For all the people running Fedora 2.
220 * - Added some screenshots of actual video captures on sourceforge.net.
222 * November 24, 2004 - 0.9.8.1cvs Dwaine Garden
223 * - Added patch to check for palette and format in VIDIOCSPICT. Helix Producer should work fine with the driver now. Thanks Jason Simpson
224 * - Two device description changes and two additions for the maintainer of usb.ids.
226 * December 2, 2004 - 0.9.8.1cvs Dwaine Garden
227 * - Added patch for YUV420P and YUV422P video output. Thanks to Alex Smith.
228 * - Better support for mythtv.
230 * January 2, 2005 - 0.9.8.1cvs Dwaine Garden
231 * - Setup that you can specify which device is used for video. Default is auto detect next available device number eg. /dev/videoX
232 * - Setup that you can specify which device is used for radio. Default is auto detect next available device number eg. /dev/radioX
233 * - usb_unlink_urb() is deprecated for synchronous unlinks. Using usb_kill_urb instead.
234 * - usbvision_kvirt_to_pa is deprecated. Removed.
235 * - Changes are related to kernel changes for 2.6.10. (Fedora 4)
237 * February 2, 2005 - 0.9.8.1cvs Dwaine Garden
238 * - Added a new device to usbvision.h Dazzle DVC 50. Thanks to Luiz S.
240 * March 29, 2005 - 0.9.8.1cvs Dwaine Garden
241 * - Fixed compile error with saa7113 under kernels 2.6.11+
242 * - Added module parameter to help people with Black and White output with using s-video input. Some cables and input device are wired differently.
243 * - Removed the .id from the i2c usbvision template. There was a change to the i2c with kernels 2.6.11+.
245 * April 9, 2005 - 0.9.8.1cvs Dwaine Garden
246 * - 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.
247 * If your device experiences Black and White images with the S-Video Input. Set this parameter to 1 when loading the module.
248 * - Replaced the wrong 2.6 readme file. I lost the right version. Someone sent me the right version by e-mail. Thanks.
249 * - Released new module version on sourceforge.net. So everyone can enjoy all the fixes and additional device support.
251 * April 20, 2005 - 0.9.8.2cvs Dwaine Garden
252 * - Release lock in usbvision_v4l_read_done. -Thanks to nplanel for the patch.
253 * - Additional comments to the driver.
254 * - Fixed some spelling mistakes. 8*)
256 * April 23, 2005 - 0.9.8.2cvs Joerg Heckenbach
257 * - Found bug in usbvision line counting. Now there should be no spurious lines in the image any longer.
258 * - Swapped usbvision_register_video and usbvision_configure_video to fix problem with PowerOnAtOpen=0.
259 * Thanks to Erwan Velu
261 * April 26, 2005 - 0.9.8.2cvs Joerg Heckenbach
262 * - Fixed problem with rmmod module and oppses. Replaced vfree(usbvision->overlay_base) with iounmap(usbvision->overlay_base).
263 * - Added function usb_get_dev(dev) and ; To help with unloading the module multiple times without crashing.
264 * (Keep the reference count in kobjects correct)
266 * June 14, 2005 - 0.9.8.2cvs Dwaine
267 * - Missed a change in saa7113.c for checking kernel version. Added conditional if's.
269 * June 15, 2005 - 0.9.8.2cvs Dwaine
270 * - Added new device WinTV device VendorId 0573 and ProductId 4d29.
271 * - Hacked some support for newer NT1005 devices. This devices only seem to have one configuration, not multiple configurations like the NT1004.
273 * June 29, 2005 - 0.9.8.2cvs Dwaine
274 * - Added new device WinTV device VendorId 0573 and ProductId 4d37.
275 * - Because of the first empty entry in usbvision_table, modutils failed to create the necessary entries for modules.usbmap.
276 * This means hotplug won't work for usbvision. Thanks to Gary Ng.
277 * - Sent an e-mail to the maintainer of usb.ids. New devices identified need to be added.
278 * - Fixed compile error with saa7113 under kernel 2.6.12.
280 * July 6, 2005 - 0.9.8.2cvs Dwaine
281 * - Patch submitted by Gary Ng for two additional procfs entries. Device Input and Frequency setting.
283 * July 12, 2005 - 0.9.8.2cvs Dwaine
284 * - New tuner identified for some devices it's called TCL_MFPE05. This tuner uses the same API as tuner 38 in tuner.c.
285 * - Thanks to lynx31 for contacting Hauppage and asking them.
286 * - I have no clue as to which devices use this new tuner, so people will have to contact me and tell me.
288 * July 21, 2005 - 0.9.8.2cvs Dwaine
289 * - Patched usbvision.c with missing ifdef kernversion statement so the module will compile with older kernels and v4l.
290 * - Thanks to cipe007......
292 * May 19, 2006 - 0.9.8.3cvs Dwaine
293 * - Patched usbvision.c and i2c-algo.c so they will compile with kernel 2.6.16
294 * - Adjust device "Pinnacle Studio PCTV USB (PAL) FM" values in usbvision.h
296 * May 24, 2006 - 0.9.8.3cvs Dwaine
297 * -Pinnacle Studio PCTV USB (NTSC) FM uses saa7111, not saa7113 like first thought.
298 * -Updated usbvision.h
300 * Aug 15, 2006 - 0.9.8.3cvs Dwaine
301 * -Added saa711x module into cvs, since the newer saa7115 module in newer kernels is v4l2. The usbvision driver is only v4l.
302 * -Updated makefile to put compiled modules into correct location.
304 * Aug 21, 2006 - 0.9.8.3cvs Dwaine
305 * -Changed number of bytes for i2c write to 4 as per the NT100X spec sheet. Thanks to Merlum for finding it.
306 * -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.
307 * -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*)
309 * Aug 27, 2006 - 0.9.8.3cvs Dwaine
310 * -Changed ifdef statement so the usbvision driver will compile with kernels at 2.6.12.
311 * -Updated readme files for new updated tuner list for v4l devices.
316 * - use submit_urb for all setup packets
317 * - Fix memory settings for nt1004. It is 4 times as big as the
319 * - Add audio on endpoint 3 for nt1004 chip. Seems impossible, needs a codec interface. Which one?
320 * - Clean up the driver.
321 * - optimization for performance.
322 * - Add Videotext capability (VBI). Working on it.....
323 * - Check audio for other devices
324 * - Add v4l2 interface
328 #include <linux/kernel.h>
329 #include <linux/sched.h>
330 #include <linux/list.h>
331 #include <linux/timer.h>
332 #include <linux/slab.h>
333 #include <linux/mm.h>
334 #include <linux/utsname.h>
335 #include <linux/highmem.h>
336 #include <linux/smp_lock.h>
337 #include <linux/videodev.h>
338 #include <linux/vmalloc.h>
339 #include <linux/module.h>
340 #include <linux/init.h>
341 #include <linux/spinlock.h>
343 #include <linux/videodev2.h>
344 #include <linux/video_decoder.h>
345 #include <linux/i2c.h>
347 #define USBVISION_DRIVER_VERSION_MAJOR 0
348 #define USBVISION_DRIVER_VERSION_MINOR 8
349 #define USBVISION_DRIVER_VERSION_PATCHLEVEL 0
351 #define USBVISION_VERSION __stringify(USBVISION_DRIVER_VERSION_MAJOR) "." __stringify(USBVISION_DRIVER_VERSION_MINOR) "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL) " " USBVISION_DRIVER_VERSION_COMMENT
352 #define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,USBVISION_DRIVER_VERSION_MINOR,USBVISION_DRIVER_VERSION_PATCHLEVEL)
354 #include <media/saa7115.h>
355 #include <media/v4l2-common.h>
356 #include <media/tuner.h>
357 #include <media/audiochip.h>
359 #include <linux/moduleparam.h>
360 #include <linux/workqueue.h>
363 #include <linux/kmod.h>
366 #include "usbvision.h"
367 #include "usbvision_ioctl.h"
370 #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__
371 #define EMAIL "joerg@heckenbach-aw.de"
372 #define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>, Dwaine Garden <DwaineGarden@rogers.com>"
373 #define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
374 #define DRIVER_LICENSE "GPL"
375 #define DRIVER_ALIAS "USBVision"
377 #define ENABLE_HEXDUMP 0 /* Enable if you need it */
380 #define USBVISION_DEBUG /* Turn on debug messages */
382 #ifdef USBVISION_DEBUG
383 #define PDEBUG(level, fmt, args...) \
384 if (debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args)
386 #define PDEBUG(level, fmt, args...) do {} while(0)
389 #define DBG_IOCTL 1<<3
392 #define DBG_HEADER 1<<7
393 #define DBG_PROBE 1<<8
395 #define DBG_ISOC 1<<10
396 #define DBG_PARSE 1<<11
397 #define DBG_SCRATCH 1<<12
398 #define DBG_FUNC 1<<13
399 #define DBG_I2C 1<<14
401 #define DEBUG(x...) /* General Debug */
402 #define IODEBUG(x...) /* Debug IO */
403 #define OVDEBUG(x...) /* Debug overlay */
404 #define MDEBUG(x...) /* Debug memory management */
407 #define rmspace(str) while(*str==' ') str++;
408 #define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
411 static int usbvision_nr = 0; // sequential number of usbvision device
414 static const int max_imgwidth = MAX_FRAME_WIDTH;
415 static const int max_imgheight = MAX_FRAME_HEIGHT;
416 static const int min_imgwidth = MIN_FRAME_WIDTH;
417 static const int min_imgheight = MIN_FRAME_HEIGHT;
419 #define FRAMERATE_MIN 0
420 #define FRAMERATE_MAX 31
424 ISOC_MODE_YUV422 = 0x03,
425 ISOC_MODE_YUV420 = 0x14,
426 ISOC_MODE_COMPRESS = 0x60,
429 static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
430 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" },
431 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" },
432 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" },
433 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" },
434 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" },
435 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" },
436 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 !
437 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
442 * The value of 'scratch_buf_size' affects quality of the picture
443 * in many ways. Shorter buffers may cause loss of data when client
444 * is too slow. Larger buffers are memory-consuming and take longer
445 * to work with. This setting can be adjusted, but the default value
446 * should be OK for most desktop users.
448 #define DEFAULT_SCRATCH_BUF_SIZE (0x20000) // 128kB memory scratch buffer
449 static const int scratch_buf_size = DEFAULT_SCRATCH_BUF_SIZE;
451 static int init_brightness = 128; // Initalize the brightness of the video device
452 static int init_contrast = 192; // Initalize the contrast of the video device
453 static int init_saturation = 128; // Initalize the staturation mode of the video device
454 static int init_hue = 128; // Initalize the Hue settings of the video device
456 // Function prototypes
457 static int usbvision_restart_isoc(struct usb_usbvision *usbvision);
458 static int usbvision_begin_streaming(struct usb_usbvision *usbvision);
459 static int usbvision_muxsel(struct usb_usbvision *usbvision, int channel, int norm);
460 static int usbvision_i2c_write(void *data, unsigned char addr, char *buf, short len);
461 static int usbvision_i2c_read(void *data, unsigned char addr, char *buf, short len);
462 static int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg);
463 static int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg, unsigned char value);
464 static int usbvision_request_intra (struct usb_usbvision *usbvision);
465 static int usbvision_unrequest_intra (struct usb_usbvision *usbvision);
466 static int usbvision_adjust_compression (struct usb_usbvision *usbvision);
467 static int usbvision_measure_bandwidth (struct usb_usbvision *usbvision);
468 static void usbvision_release(struct usb_usbvision *usbvision);
469 static int usbvision_set_input(struct usb_usbvision *usbvision);
470 static int usbvision_set_output(struct usb_usbvision *usbvision, int width, int height);
471 static void call_i2c_clients(struct usb_usbvision *usbvision, unsigned int cmd, void *arg);
474 // Bit flags (options)
475 #define FLAGS_RETRY_VIDIOCSYNC (1 << 0)
476 #define FLAGS_MONOCHROME (1 << 1)
477 #define FLAGS_DISPLAY_HINTS (1 << 2)
478 #define FLAGS_OSD_STATS (1 << 3)
479 #define FLAGS_FORCE_TESTPATTERN (1 << 4)
480 #define FLAGS_SEPARATE_FRAMES (1 << 5)
481 #define FLAGS_CLEAN_FRAMES (1 << 6)
483 // Default initalization of device driver parameters
484 static int flags = 0; // Set the default Overlay Display mode of the device driver
485 static int debug = 0; // Set the default Debug Mode of the device driver
486 static int isocMode = ISOC_MODE_COMPRESS; // Set the default format for ISOC endpoint
487 static int adjustCompression = 1; // Set the compression to be adaptive
488 static int dga = 1; // Set the default Direct Graphic Access
489 static int PowerOnAtOpen = 1; // Set the default device to power on at startup
490 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.
491 static int video_nr = -1; // Sequential Number of Video Device
492 static int radio_nr = -1; // Sequential Number of Radio Device
493 static int vbi_nr = -1; // Sequential Number of VBI Device
494 static char *CustomDevice=NULL; // Set as nothing....
496 // Grab parameters for the device driver
498 #if defined(module_param) // Showing parameters under SYSFS
499 module_param(flags, int, 0444);
500 module_param(debug, int, 0444);
501 module_param(isocMode, int, 0444);
502 module_param(adjustCompression, int, 0444);
503 module_param(dga, int, 0444);
504 module_param(PowerOnAtOpen, int, 0444);
505 module_param(SwitchSVideoInput, int, 0444);
506 module_param(video_nr, int, 0444);
507 module_param(radio_nr, int, 0444);
508 module_param(vbi_nr, int, 0444);
509 module_param(CustomDevice, charp, 0444);
511 MODULE_PARM(flags, "i"); // Grab the Overlay Display mode of the device driver
512 MODULE_PARM(debug, "i"); // Grab the Debug Mode of the device driver
513 MODULE_PARM(isocMode, "i"); // Grab the video format of the video device
514 MODULE_PARM(adjustCompression, "i"); // Grab the compression to be adaptive
515 MODULE_PARM(dga, "i"); // Grab the Direct Graphic Access
516 MODULE_PARM(PowerOnAtOpen, "i"); // Grab the device to power on at startup
517 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.
518 MODULE_PARM(video_nr, "i"); // video_nr option allows to specify a certain /dev/videoX device (like /dev/video0 or /dev/video1 ...)
519 MODULE_PARM(radio_nr, "i"); // radio_nr option allows to specify a certain /dev/radioX device (like /dev/radio0 or /dev/radio1 ...)
520 MODULE_PARM(vbi_nr, "i"); // vbi_nr option allows to specify a certain /dev/vbiX device (like /dev/vbi0 or /dev/vbi1 ...)
521 MODULE_PARM(CustomDevice, "s"); // .... CustomDevice
524 MODULE_PARM_DESC(flags, " Set the default Overlay Display mode of the device driver. Default: 0 (Off)");
525 MODULE_PARM_DESC(debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)");
526 MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)");
527 MODULE_PARM_DESC(adjustCompression, " Set the ADPCM compression for the device. Default: 1 (On)");
528 MODULE_PARM_DESC(dga, " Set the Direct Graphic Access for the device. Default: 1 (On)");
529 MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)");
530 MODULE_PARM_DESC(SwitchSVideoInput, " Set the S-Video input. Some cables and input device are wired differently. Default: 0 (Off)");
531 MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)");
532 MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)");
533 MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)");
534 MODULE_PARM_DESC(CustomDevice, " Define the fine tuning parameters for the device. Default: null");
538 MODULE_AUTHOR(DRIVER_AUTHOR);
539 MODULE_DESCRIPTION(DRIVER_DESC);
540 MODULE_LICENSE(DRIVER_LICENSE);
541 MODULE_VERSION(DRIVER_VERSION);
542 MODULE_ALIAS(DRIVER_ALIAS);
545 static unsigned int autoload = 1;
547 static unsigned int autoload = 0;
551 /****************************************************************************************/
552 /* SYSFS Code - Copied from the stv680.c usb module. */
553 /* Device information is located at /sys/class/video4linux/video0 */
554 /* Device parameters information is located at /sys/module/usbvision */
555 /* Device USB Information is located at /sys/bus/usb/drivers/USBVision Video Grabber */
556 /****************************************************************************************/
559 #define YES_NO(x) ((x) ? "Yes" : "No")
561 static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd)
563 struct video_device *vdev = to_video_device(cd);
564 return video_get_drvdata(vdev);
567 static ssize_t show_version(struct class_device *cd, char *buf)
569 return sprintf(buf, "%s\n", DRIVER_VERSION);
571 static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
573 static ssize_t show_model(struct class_device *class_dev, char *buf)
575 struct video_device *vdev = to_video_device(class_dev);
576 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
577 return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString);
579 static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
581 static ssize_t show_hue(struct class_device *class_dev, char *buf)
583 struct video_device *vdev = to_video_device(class_dev);
584 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
585 return sprintf(buf, "%d\n", usbvision->hue >> 8);
587 static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
589 static ssize_t show_contrast(struct class_device *class_dev, char *buf)
591 struct video_device *vdev = to_video_device(class_dev);
592 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
593 return sprintf(buf, "%d\n", usbvision->contrast >> 8);
595 static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
597 static ssize_t show_brightness(struct class_device *class_dev, char *buf)
599 struct video_device *vdev = to_video_device(class_dev);
600 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
601 return sprintf(buf, "%d\n", usbvision->brightness >> 8);
603 static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
605 static ssize_t show_saturation(struct class_device *class_dev, char *buf)
607 struct video_device *vdev = to_video_device(class_dev);
608 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
609 return sprintf(buf, "%d\n", usbvision->saturation >> 8);
611 static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
613 static ssize_t show_streaming(struct class_device *class_dev, char *buf)
615 struct video_device *vdev = to_video_device(class_dev);
616 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
617 return sprintf(buf, "%s\n", YES_NO(usbvision->streaming));
619 static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
621 static ssize_t show_overlay(struct class_device *class_dev, char *buf)
623 struct video_device *vdev = to_video_device(class_dev);
624 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
625 return sprintf(buf, "%s\n", YES_NO(usbvision->overlay));
627 static CLASS_DEVICE_ATTR(overlay, S_IRUGO, show_overlay, NULL);
629 static ssize_t show_compression(struct class_device *class_dev, char *buf)
631 struct video_device *vdev = to_video_device(class_dev);
632 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
633 return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
635 static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
637 static ssize_t show_device_bridge(struct class_device *class_dev, char *buf)
639 struct video_device *vdev = to_video_device(class_dev);
640 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
641 return sprintf(buf, "%d\n", usbvision->bridgeType);
643 static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
645 static void usbvision_create_sysfs(struct video_device *vdev)
648 video_device_create_file(vdev, &class_device_attr_version);
649 video_device_create_file(vdev, &class_device_attr_model);
650 video_device_create_file(vdev, &class_device_attr_hue);
651 video_device_create_file(vdev, &class_device_attr_contrast);
652 video_device_create_file(vdev, &class_device_attr_brightness);
653 video_device_create_file(vdev, &class_device_attr_saturation);
654 video_device_create_file(vdev, &class_device_attr_streaming);
655 video_device_create_file(vdev, &class_device_attr_overlay);
656 video_device_create_file(vdev, &class_device_attr_compression);
657 video_device_create_file(vdev, &class_device_attr_bridge);
661 static void usbvision_remove_sysfs(struct video_device *vdev)
664 video_device_remove_file(vdev, &class_device_attr_version);
665 video_device_remove_file(vdev, &class_device_attr_model);
666 video_device_remove_file(vdev, &class_device_attr_hue);
667 video_device_remove_file(vdev, &class_device_attr_contrast);
668 video_device_remove_file(vdev, &class_device_attr_brightness);
669 video_device_remove_file(vdev, &class_device_attr_saturation);
670 video_device_remove_file(vdev, &class_device_attr_streaming);
671 video_device_remove_file(vdev, &class_device_attr_overlay);
672 video_device_remove_file(vdev, &class_device_attr_compression);
673 video_device_remove_file(vdev, &class_device_attr_bridge);
678 /*******************************/
679 /* Memory management functions */
680 /*******************************/
683 * Here we want the physical address of the memory.
684 * This is used when initializing the contents of the area.
688 void *usbvision_rvmalloc(unsigned long size)
693 size = PAGE_ALIGN(size);
694 mem = vmalloc_32(size);
698 memset(mem, 0, size); /* Clear the ram out, no junk to the user */
699 adr = (unsigned long) mem;
701 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
702 mem_map_reserve(vmalloc_to_page((void *)adr));
704 SetPageReserved(vmalloc_to_page((void *)adr));
713 void usbvision_rvfree(void *mem, unsigned long size)
720 adr = (unsigned long) mem;
721 while ((long) size > 0) {
722 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
723 mem_map_unreserve(vmalloc_to_page((void *)adr));
725 ClearPageReserved(vmalloc_to_page((void *)adr));
739 static void usbvision_hexdump(const unsigned char *data, int len)
744 for (i = k = 0; len > 0; i++, len--) {
745 if (i > 0 && (i % 16 == 0)) {
749 k += sprintf(&tmp[k], "%02x ", data[i]);
757 /* These procedures handle the scratch ring buffer */
758 int scratch_len(struct usb_usbvision *usbvision) /*This returns the amount of data actually in the buffer */
760 int len = usbvision->scratch_write_ptr - usbvision->scratch_read_ptr;
762 len += scratch_buf_size;
764 PDEBUG(DBG_SCRATCH, "scratch_len() = %d\n", len);
770 /* This returns the free space left in the buffer */
771 int scratch_free(struct usb_usbvision *usbvision)
773 int free = usbvision->scratch_read_ptr - usbvision->scratch_write_ptr;
775 free += scratch_buf_size;
778 free -= 1; /* at least one byte in the buffer must */
779 /* left blank, otherwise there is no chance to differ between full and empty */
781 PDEBUG(DBG_SCRATCH, "return %d\n", free);
787 void *debug_memcpy(void *dest, void *src, size_t len)
789 printk(KERN_DEBUG "memcpy(%p, %p, %d);\n", dest, src, len);
790 return memcpy(dest, src, len);
794 /* This puts data into the buffer */
795 int scratch_put(struct usb_usbvision *usbvision, unsigned char *data, int len)
799 if (usbvision->scratch_write_ptr + len < scratch_buf_size) {
800 memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len);
801 usbvision->scratch_write_ptr += len;
804 len_part = scratch_buf_size - usbvision->scratch_write_ptr;
805 memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len_part);
806 if (len == len_part) {
807 usbvision->scratch_write_ptr = 0; /* just set write_ptr to zero */
810 memcpy(usbvision->scratch, data + len_part, len - len_part);
811 usbvision->scratch_write_ptr = len - len_part;
815 PDEBUG(DBG_SCRATCH, "len=%d, new write_ptr=%d\n", len, usbvision->scratch_write_ptr);
820 /* This marks the write_ptr as position of new frame header */
821 void scratch_mark_header(struct usb_usbvision *usbvision)
823 PDEBUG(DBG_SCRATCH, "header at write_ptr=%d\n", usbvision->scratch_headermarker_write_ptr);
825 usbvision->scratch_headermarker[usbvision->scratch_headermarker_write_ptr] =
826 usbvision->scratch_write_ptr;
827 usbvision->scratch_headermarker_write_ptr += 1;
828 usbvision->scratch_headermarker_write_ptr %= USBVISION_NUM_HEADERMARKER;
831 /* This gets data from the buffer at the given "ptr" position */
832 int scratch_get_extra(struct usb_usbvision *usbvision, unsigned char *data, int *ptr, int len)
835 if (*ptr + len < scratch_buf_size) {
836 memcpy(data, usbvision->scratch + *ptr, len);
840 len_part = scratch_buf_size - *ptr;
841 memcpy(data, usbvision->scratch + *ptr, len_part);
842 if (len == len_part) {
843 *ptr = 0; /* just set the y_ptr to zero */
846 memcpy(data + len_part, usbvision->scratch, len - len_part);
847 *ptr = len - len_part;
851 PDEBUG(DBG_SCRATCH, "len=%d, new ptr=%d\n", len, *ptr);
857 /* This sets the scratch extra read pointer */
858 void scratch_set_extra_ptr(struct usb_usbvision *usbvision, int *ptr, int len)
860 *ptr = (usbvision->scratch_read_ptr + len)%scratch_buf_size;
862 PDEBUG(DBG_SCRATCH, "ptr=%d\n", *ptr);
866 /*This increments the scratch extra read pointer */
867 void scratch_inc_extra_ptr(int *ptr, int len)
869 *ptr = (*ptr + len) % scratch_buf_size;
871 PDEBUG(DBG_SCRATCH, "ptr=%d\n", *ptr);
875 /* This gets data from the buffer */
876 int scratch_get(struct usb_usbvision *usbvision, unsigned char *data, int len)
879 if (usbvision->scratch_read_ptr + len < scratch_buf_size) {
880 memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len);
881 usbvision->scratch_read_ptr += len;
884 len_part = scratch_buf_size - usbvision->scratch_read_ptr;
885 memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len_part);
886 if (len == len_part) {
887 usbvision->scratch_read_ptr = 0; /* just set the read_ptr to zero */
890 memcpy(data + len_part, usbvision->scratch, len - len_part);
891 usbvision->scratch_read_ptr = len - len_part;
895 PDEBUG(DBG_SCRATCH, "len=%d, new read_ptr=%d\n", len, usbvision->scratch_read_ptr);
901 /* This sets read pointer to next header and returns it */
902 int scratch_get_header(struct usb_usbvision *usbvision,struct usbvision_frame_header *header)
906 PDEBUG(DBG_SCRATCH, "from read_ptr=%d", usbvision->scratch_headermarker_read_ptr);
908 while (usbvision->scratch_headermarker_write_ptr -
909 usbvision->scratch_headermarker_read_ptr != 0) {
910 usbvision->scratch_read_ptr =
911 usbvision->scratch_headermarker[usbvision->scratch_headermarker_read_ptr];
912 usbvision->scratch_headermarker_read_ptr += 1;
913 usbvision->scratch_headermarker_read_ptr %= USBVISION_NUM_HEADERMARKER;
914 scratch_get(usbvision, (unsigned char *)header, USBVISION_HEADER_LENGTH);
915 if ((header->magic_1 == USBVISION_MAGIC_1)
916 && (header->magic_2 == USBVISION_MAGIC_2)
917 && (header->headerLength == USBVISION_HEADER_LENGTH)) {
918 errCode = USBVISION_HEADER_LENGTH;
919 header->frameWidth = header->frameWidthLo + (header->frameWidthHi << 8);
920 header->frameHeight = header->frameHeightLo + (header->frameHeightHi << 8);
929 /*This removes len bytes of old data from the buffer */
930 void scratch_rm_old(struct usb_usbvision *usbvision, int len)
933 usbvision->scratch_read_ptr += len;
934 usbvision->scratch_read_ptr %= scratch_buf_size;
935 PDEBUG(DBG_SCRATCH, "read_ptr is now %d\n", usbvision->scratch_read_ptr);
939 /*This resets the buffer - kills all data in it too */
940 void scratch_reset(struct usb_usbvision *usbvision)
942 PDEBUG(DBG_SCRATCH, "\n");
944 usbvision->scratch_read_ptr = 0;
945 usbvision->scratch_write_ptr = 0;
946 usbvision->scratch_headermarker_read_ptr = 0;
947 usbvision->scratch_headermarker_write_ptr = 0;
948 usbvision->isocstate = IsocState_NoFrame;
953 /* Here comes the OVERLAY stuff */
955 /* Tell the interrupt handler what to to. */
957 void usbvision_cap(struct usb_usbvision* usbvision, int on)
959 DEBUG(printk(KERN_DEBUG "usbvision_cap: overlay was %d, set it to %d\n", usbvision->overlay, on);)
962 usbvision->overlay = 1;
965 usbvision->overlay = 0;
972 /* append a new clipregion to the vector of video_clips */
974 void usbvision_new_clip(struct v4l2_format* vf, struct v4l2_clip* vcp, int x, int y, int w, int h)
976 vcp[vf->fmt.win.clipcount].c.left = x;
977 vcp[vf->fmt.win.clipcount].c.top = y;
978 vcp[vf->fmt.win.clipcount].c.width = w;
979 vcp[vf->fmt.win.clipcount].c.height = h;
980 vf->fmt.win.clipcount++;
984 #define mark_pixel(x,y) usbvision->clipmask[((x) + (y) * MAX_FRAME_WIDTH)/32] |= 0x00000001<<((x)%32)
985 #define clipped_pixel(index) usbvision->clipmask[(index)/32] & (0x00000001<<((index)%32))
988 void usbvision_built_overlay(struct usb_usbvision* usbvision, int count, struct v4l2_clip *vcp)
990 usbvision->overlay_win = usbvision->overlay_base +
991 (signed int)usbvision->vid_win.fmt.win.w.left * usbvision->depth / 8 +
992 (signed int)usbvision->vid_win.fmt.win.w.top * usbvision->vid_buf.fmt.bytesperline;
994 IODEBUG(printk(KERN_DEBUG "built_overlay base=%p, win=%p, bpl=%d, clips=%d, size=%dx%d\n",
995 usbvision->overlay_base, usbvision->overlay_win,
996 usbvision->vid_buf.fmt.bytesperline, count,
997 usbvision->vid_win.fmt.win.w.width, usbvision->vid_win.fmt.win.w.height);)
1000 /* Add here generation of clipping mask */
1002 int x_start, x_end, y_start, y_end;
1003 int clip_index, x, y;
1005 memset(usbvision->clipmask, 0, USBVISION_CLIPMASK_SIZE);
1007 OVDEBUG(printk(KERN_DEBUG "clips = %d\n", count);)
1009 for(clip_index = 0; clip_index < count; clip_index++) {
1010 OVDEBUG(printk(KERN_DEBUG "clip: %d,%d,%d,%d\n", vcp[clip_index].x,
1012 vcp[clip_index].width,
1013 vcp[clip_index].height);)
1015 x_start = vcp[clip_index].c.left;
1016 if(x_start >= (int)usbvision->vid_win.fmt.win.w.width) {
1017 OVDEBUG(printk(KERN_DEBUG "x_start=%d\n", x_start);)
1018 continue; //clipping window is right of overlay window
1020 x_end = x_start + vcp[clip_index].c.width;
1022 OVDEBUG(printk(KERN_DEBUG "x_end=%d\n", x_end);)
1023 continue; //clipping window is left of overlay window
1026 y_start = vcp[clip_index].c.top;
1027 if(y_start >= (int)usbvision->vid_win.fmt.win.w.height) {
1028 OVDEBUG(printk(KERN_DEBUG "y_start=%d\n", y_start);)
1029 continue; //clipping window is below overlay window
1031 y_end = y_start + vcp[clip_index].c.height;
1033 OVDEBUG(printk(KERN_DEBUG "y_end=%d\n", y_end);)
1034 continue; //clipping window is above overlay window
1037 //clip the clipping window
1041 if (x_end > (int)usbvision->vid_win.fmt.win.w.width) {
1042 x_end = (int)usbvision->vid_win.fmt.win.w.width;
1047 if (y_end > (int)usbvision->vid_win.fmt.win.w.height) {
1048 y_end = (int)usbvision->vid_win.fmt.win.w.height;
1051 OVDEBUG(printk(KERN_DEBUG "clip_o: %d,%d,%d,%d\n", x_start, y_start, x_end, y_end);)
1055 for(y = y_start; y < y_end; y++) {
1056 for(x = x_start; x < x_end; x++) {
1067 void usbvision_osd_char(struct usb_usbvision *usbvision,
1068 struct usbvision_frame *frame, int x, int y, int ch)
1070 static const unsigned short digits[16] = {
1088 unsigned short digit;
1091 if ((usbvision == NULL) || (frame == NULL))
1094 if (ch >= '0' && ch <= '9')
1096 else if (ch >= 'A' && ch <= 'F')
1097 ch = 10 + (ch - 'A');
1098 else if (ch >= 'a' && ch <= 'f')
1099 ch = 10 + (ch - 'a');
1104 for (iy = 0; iy < 5; iy++) {
1105 for (ix = 0; ix < 3; ix++) {
1106 if (digit & 0x8000) {
1107 // USBVISION_PUTPIXEL(frame, x + ix, y + iy,
1108 // 0xFF, 0xFF, 0xFF);
1116 void usbvision_osd_string(struct usb_usbvision *usbvision,
1117 struct usbvision_frame *frame,
1118 int x, int y, const char *str)
1121 usbvision_osd_char(usbvision, frame, x, y, *str);
1123 x += 4; /* 3 pixels character + 1 space */
1128 * usb_usbvision_osd_stats()
1130 * On screen display of important debugging information.
1133 void usbvision_osd_stats(struct usb_usbvision *usbvision,
1134 struct usbvision_frame *frame)
1136 const int y_diff = 8;
1141 sprintf(tmp, "%8x", usbvision->frame_num);
1142 usbvision_osd_string(usbvision, frame, x, y, tmp);
1145 sprintf(tmp, "%8lx", usbvision->isocUrbCount);
1146 usbvision_osd_string(usbvision, frame, x, y, tmp);
1149 sprintf(tmp, "%8lx", usbvision->urb_length);
1150 usbvision_osd_string(usbvision, frame, x, y, tmp);
1153 sprintf(tmp, "%8lx", usbvision->isocDataCount);
1154 usbvision_osd_string(usbvision, frame, x, y, tmp);
1157 sprintf(tmp, "%8lx", usbvision->header_count);
1158 usbvision_osd_string(usbvision, frame, x, y, tmp);
1161 sprintf(tmp, "%8lx", usbvision->scratch_ovf_count);
1162 usbvision_osd_string(usbvision, frame, x, y, tmp);
1165 sprintf(tmp, "%8lx", usbvision->isocSkipCount);
1166 usbvision_osd_string(usbvision, frame, x, y, tmp);
1169 sprintf(tmp, "%8lx", usbvision->isocErrCount);
1170 usbvision_osd_string(usbvision, frame, x, y, tmp);
1173 sprintf(tmp, "%8x", usbvision->saturation);
1174 usbvision_osd_string(usbvision, frame, x, y, tmp);
1177 sprintf(tmp, "%8x", usbvision->hue);
1178 usbvision_osd_string(usbvision, frame, x, y, tmp);
1181 sprintf(tmp, "%8x", usbvision->brightness >> 8);
1182 usbvision_osd_string(usbvision, frame, x, y, tmp);
1185 sprintf(tmp, "%8x", usbvision->contrast >> 12);
1186 usbvision_osd_string(usbvision, frame, x, y, tmp);
1192 * usbvision_testpattern()
1194 * Procedure forms a test pattern (yellow grid on blue background).
1197 * fullframe: if TRUE then entire frame is filled, otherwise the procedure
1198 * continues from the current scanline.
1199 * pmode 0: fill the frame with solid blue color (like on VCR or TV)
1200 * 1: Draw a colored grid
1203 void usbvision_testpattern(struct usb_usbvision *usbvision, int fullframe,
1206 static const char proc[] = "usbvision_testpattern";
1207 struct usbvision_frame *frame;
1210 int scan_length = 0;
1211 static int num_pass = 0;
1213 if (usbvision == NULL) {
1214 printk(KERN_ERR "%s: usbvision == NULL\n", proc);
1217 if ((usbvision->curFrameNum < 0)
1218 || (usbvision->curFrameNum >= USBVISION_NUMFRAMES)) {
1219 printk(KERN_ERR "%s: usbvision->curFrameNum=%d.\n", proc,
1220 usbvision->curFrameNum);
1224 /* Grab the current frame */
1225 frame = &usbvision->frame[usbvision->curFrameNum];
1227 /* Optionally start at the beginning */
1230 frame->scanlength = 0;
1233 /* Form every scan line */
1234 for (; frame->curline < frame->frmheight; frame->curline++) {
1237 f = frame->data + (usbvision->curwidth * 3 * frame->curline);
1238 for (i = 0; i < usbvision->curwidth; i++) {
1239 unsigned char cb = 0x80;
1240 unsigned char cg = 0;
1241 unsigned char cr = 0;
1244 if (frame->curline % 32 == 0)
1245 cb = 0, cg = cr = 0xFF;
1246 else if (i % 32 == 0) {
1247 if (frame->curline % 32 == 1)
1249 cb = 0, cg = cr = 0xFF;
1256 num_pass * 2) & 0xFF;
1259 num_pass * 3) & 0xFF;
1262 /* Just the blue screen */
1272 frame->grabstate = FrameState_Done;
1273 frame->scanlength += scan_length;
1276 /* We do this unconditionally, regardless of FLAGS_OSD_STATS */
1277 usbvision_osd_stats(usbvision, frame);
1281 * Here comes the data parsing stuff that is run as interrupt
1285 * usbvision_find_header()
1287 * Locate one of supported header markers in the scratch buffer.
1289 static enum ParseState usbvision_find_header(struct usb_usbvision *usbvision)
1291 struct usbvision_frame *frame;
1292 int foundHeader = 0;
1294 if (usbvision->overlay) {
1295 frame = &usbvision->overlay_frame;
1298 frame = &usbvision->frame[usbvision->curFrameNum];
1301 while (scratch_get_header(usbvision, &frame->isocHeader) == USBVISION_HEADER_LENGTH) {
1302 // found header in scratch
1303 PDEBUG(DBG_HEADER, "found header: 0x%02x%02x %d %d %d %d %#x 0x%02x %u %u",
1304 frame->isocHeader.magic_2,
1305 frame->isocHeader.magic_1,
1306 frame->isocHeader.headerLength,
1307 frame->isocHeader.frameNum,
1308 frame->isocHeader.framePhase,
1309 frame->isocHeader.frameLatency,
1310 frame->isocHeader.dataFormat,
1311 frame->isocHeader.formatParam,
1312 frame->isocHeader.frameWidth,
1313 frame->isocHeader.frameHeight);
1315 if (usbvision->requestIntra) {
1316 if (frame->isocHeader.formatParam & 0x80) {
1318 usbvision->lastIsocFrameNum = -1; // do not check for lost frames this time
1319 usbvision_unrequest_intra(usbvision);
1330 frame->frmwidth = frame->isocHeader.frameWidth * usbvision->stretch_width;
1331 frame->frmheight = frame->isocHeader.frameHeight * usbvision->stretch_height;
1332 frame->v4l2_linesize = (frame->frmwidth * frame->v4l2_format.depth)>> 3;
1333 usbvision->curFrame = frame;
1335 else { // no header found
1336 PDEBUG(DBG_HEADER, "skipping scratch data, no header");
1337 scratch_reset(usbvision);
1338 return ParseState_EndParse;
1342 if (frame->isocHeader.dataFormat==ISOC_MODE_COMPRESS) {
1343 //check isocHeader.frameNum for lost frames
1344 if (usbvision->lastIsocFrameNum >= 0) {
1345 if (((usbvision->lastIsocFrameNum + 1) % 32) != frame->isocHeader.frameNum) {
1346 // unexpected frame drop: need to request new intra frame
1347 PDEBUG(DBG_HEADER, "Lost frame before %d on USB", frame->isocHeader.frameNum);
1348 usbvision_request_intra(usbvision);
1349 return ParseState_NextFrame;
1352 usbvision->lastIsocFrameNum = frame->isocHeader.frameNum;
1354 usbvision->header_count++;
1355 frame->scanstate = ScanState_Lines;
1358 if (flags & FLAGS_FORCE_TESTPATTERN) {
1359 usbvision_testpattern(usbvision, 1, 1);
1360 return ParseState_NextFrame;
1362 return ParseState_Continue;
1365 static enum ParseState usbvision_parse_lines_422(struct usb_usbvision *usbvision,
1368 volatile struct usbvision_frame *frame;
1372 unsigned char yuyv[4]={180, 128, 10, 128}; // YUV components
1373 unsigned char rv, gv, bv; // RGB components
1374 int clipmask_index, bytes_per_pixel;
1375 int overlay = usbvision->overlay;
1376 int stretch_bytes, clipmask_add;
1379 frame = &usbvision->overlay_frame;
1380 if (usbvision->overlay_base == NULL) {
1381 //video_buffer is not set yet
1382 return ParseState_NextFrame;
1384 f = usbvision->overlay_win + frame->curline *
1385 usbvision->vid_buf.fmt.bytesperline;
1388 frame = &usbvision->frame[usbvision->curFrameNum];
1389 f = frame->data + (frame->v4l2_linesize * frame->curline);
1392 /* Make sure there's enough data for the entire line */
1393 len = (frame->isocHeader.frameWidth * 2)+5;
1394 if (scratch_len(usbvision) < len) {
1395 PDEBUG(DBG_PARSE, "out of data in line %d, need %u.\n", frame->curline, len);
1396 return ParseState_Out;
1399 if ((frame->curline + 1) >= frame->frmheight) {
1400 return ParseState_NextFrame;
1403 bytes_per_pixel = frame->v4l2_format.bytes_per_pixel;
1404 stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel;
1405 clipmask_index = frame->curline * MAX_FRAME_WIDTH;
1406 clipmask_add = usbvision->stretch_width;
1408 for (i = 0; i < frame->frmwidth; i+=(2 * usbvision->stretch_width)) {
1410 scratch_get(usbvision, &yuyv[0], 4);
1412 if((overlay) && (clipped_pixel(clipmask_index))) {
1413 f += bytes_per_pixel;
1415 else if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
1416 *f++ = yuyv[0]; // Y
1417 *f++ = yuyv[3]; // U
1421 YUV_TO_RGB_BY_THE_BOOK(yuyv[0], yuyv[1], yuyv[3], rv, gv, bv);
1422 switch (frame->v4l2_format.format) {
1423 case V4L2_PIX_FMT_RGB565:
1424 *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 3));
1425 *f++ = (0x07 & (gv >> 5)) | (0xF8 & rv);
1427 case V4L2_PIX_FMT_RGB24:
1432 case V4L2_PIX_FMT_RGB32:
1438 case V4L2_PIX_FMT_RGB555:
1439 *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 2));
1440 *f++ = (0x03 & (gv >> 6)) | (0x7C & (rv >> 1));
1444 clipmask_index += clipmask_add;
1447 if((overlay) && (clipped_pixel(clipmask_index))) {
1448 f += bytes_per_pixel;
1450 else if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
1451 *f++ = yuyv[2]; // Y
1452 *f++ = yuyv[1]; // V
1456 YUV_TO_RGB_BY_THE_BOOK(yuyv[2], yuyv[1], yuyv[3], rv, gv, bv);
1457 switch (frame->v4l2_format.format) {
1458 case V4L2_PIX_FMT_RGB565:
1459 *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 3));
1460 *f++ = (0x07 & (gv >> 5)) | (0xF8 & rv);
1462 case V4L2_PIX_FMT_RGB24:
1467 case V4L2_PIX_FMT_RGB32:
1473 case V4L2_PIX_FMT_RGB555:
1474 *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 2));
1475 *f++ = (0x03 & (gv >> 6)) | (0x7C & (rv >> 1));
1479 clipmask_index += clipmask_add;
1483 frame->curline += usbvision->stretch_height;
1484 *pcopylen += frame->v4l2_linesize * usbvision->stretch_height;
1486 if (frame->curline >= frame->frmheight) {
1487 return ParseState_NextFrame;
1490 return ParseState_Continue;
1495 static int usbvision_decompress(struct usb_usbvision *usbvision,unsigned char *Compressed,
1496 unsigned char *Decompressed, int *StartPos,
1497 int *BlockTypeStartPos, int Len)
1499 int RestPixel, Idx, MaxPos, Pos, ExtraPos, BlockLen, BlockTypePos, BlockTypeLen;
1500 unsigned char BlockByte, BlockCode, BlockType, BlockTypeByte, Integrator;
1504 BlockTypePos = *BlockTypeStartPos;
1505 MaxPos = 396; //Pos + Len;
1515 for (Idx = 0; Idx < Len; Idx++) {
1517 if (BlockLen == 0) {
1518 if (BlockTypeLen==0) {
1519 BlockTypeByte = Compressed[BlockTypePos];
1523 BlockType = (BlockTypeByte & 0xC0) >> 6;
1526 usbvision->ComprBlockTypes[BlockType]++;
1529 if (BlockType == 0) {
1530 if(RestPixel >= 24) {
1533 Integrator = Decompressed[Idx];
1535 Idx += RestPixel - 1;
1539 BlockCode = Compressed[Pos];
1541 if (RestPixel >= 24) {
1544 BlockLen = RestPixel;
1546 RestPixel -= BlockLen;
1547 ExtraPos = Pos + (BlockLen / 4);
1549 BlockTypeByte <<= 2;
1553 if ((BlockLen%4) == 0) {
1554 BlockByte = Compressed[Pos];
1557 if (BlockType == 1) { //inter Block
1558 Integrator = Decompressed[Idx];
1560 switch (BlockByte & 0xC0) {
1562 Integrator += Compressed[ExtraPos];
1566 Integrator += BlockCode;
1569 Integrator -= BlockCode;
1572 Decompressed[Idx] = Integrator;
1577 *StartPos = ExtraPos;
1578 *BlockTypeStartPos = BlockTypePos;
1584 * usbvision_parse_compress()
1586 * Parse compressed frame from the scratch buffer, put
1587 * decoded RGB value into the current frame buffer and add the written
1588 * number of bytes (RGB) to the *pcopylen.
1591 static enum ParseState usbvision_parse_compress(struct usb_usbvision *usbvision,
1594 #define USBVISION_STRIP_MAGIC 0x5A
1595 #define USBVISION_STRIP_LEN_MAX 400
1596 #define USBVISION_STRIP_HEADER_LEN 3
1598 struct usbvision_frame *frame;
1599 unsigned char *f,*u = NULL ,*v = NULL;
1600 unsigned char StripData[USBVISION_STRIP_LEN_MAX];
1601 unsigned char StripHeader[USBVISION_STRIP_HEADER_LEN];
1602 int Idx, IdxEnd, StripLen, StripPtr, StartBlockPos, BlockPos, BlockTypePos;
1603 int clipmask_index, bytes_per_pixel, rc;
1604 int overlay = usbvision->overlay;
1606 unsigned char rv, gv, bv;
1607 static unsigned char *Y, *U, *V;
1610 frame = &usbvision->overlay_frame;
1611 imageSize = frame->frmwidth * frame->frmheight;
1612 if (usbvision->overlay_base == NULL) {
1613 //video_buffer is not set yet
1614 return ParseState_NextFrame;
1616 f = usbvision->overlay_win + frame->curline *
1617 usbvision->vid_buf.fmt.bytesperline;
1620 frame = &usbvision->frame[usbvision->curFrameNum];
1621 imageSize = frame->frmwidth * frame->frmheight;
1622 if ( (frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) ||
1623 (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420) )
1624 { // this is a planar format
1625 //... v4l2_linesize not used here.
1626 f = frame->data + (frame->width * frame->curline);
1628 f = frame->data + (frame->v4l2_linesize * frame->curline);
1630 if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV){ //initialise u and v pointers
1631 // get base of u and b planes add halfoffset
1635 + (frame->frmwidth >>1) * frame->curline ;
1636 v = u + (imageSize >>1 );
1638 } else if (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420){
1640 v = frame->data + imageSize + ((frame->curline* (frame->width))>>2) ;
1641 u = v + (imageSize >>2) ;
1645 if (frame->curline == 0) {
1646 usbvision_adjust_compression(usbvision);
1649 if (scratch_len(usbvision) < USBVISION_STRIP_HEADER_LEN) {
1650 return ParseState_Out;
1653 //get strip header without changing the scratch_read_ptr
1654 scratch_set_extra_ptr(usbvision, &StripPtr, 0);
1655 scratch_get_extra(usbvision, &StripHeader[0], &StripPtr,
1656 USBVISION_STRIP_HEADER_LEN);
1658 if (StripHeader[0] != USBVISION_STRIP_MAGIC) {
1659 // wrong strip magic
1660 usbvision->stripMagicErrors++;
1661 return ParseState_NextFrame;
1664 if (frame->curline != (int)StripHeader[2]) {
1665 //line number missmatch error
1666 usbvision->stripLineNumberErrors++;
1669 StripLen = 2 * (unsigned int)StripHeader[1];
1670 if (StripLen > USBVISION_STRIP_LEN_MAX) {
1672 // I think this never happens
1673 usbvision_request_intra(usbvision);
1676 if (scratch_len(usbvision) < StripLen) {
1677 //there is not enough data for the strip
1678 return ParseState_Out;
1681 if (usbvision->IntraFrameBuffer) {
1682 Y = usbvision->IntraFrameBuffer + frame->frmwidth * frame->curline;
1683 U = usbvision->IntraFrameBuffer + imageSize + (frame->frmwidth / 2) * (frame->curline / 2);
1684 V = usbvision->IntraFrameBuffer + imageSize / 4 * 5 + (frame->frmwidth / 2) * (frame->curline / 2);
1687 return ParseState_NextFrame;
1690 bytes_per_pixel = frame->v4l2_format.bytes_per_pixel;
1691 clipmask_index = frame->curline * MAX_FRAME_WIDTH;
1693 scratch_get(usbvision, StripData, StripLen);
1695 IdxEnd = frame->frmwidth;
1696 BlockTypePos = USBVISION_STRIP_HEADER_LEN;
1697 StartBlockPos = BlockTypePos + (IdxEnd - 1) / 96 + (IdxEnd / 2 - 1) / 96 + 2;
1698 BlockPos = StartBlockPos;
1700 usbvision->BlockPos = BlockPos;
1702 if ((rc = usbvision_decompress(usbvision, StripData, Y, &BlockPos, &BlockTypePos, IdxEnd)) != IdxEnd) {
1703 //return ParseState_Continue;
1705 if (StripLen > usbvision->maxStripLen) {
1706 usbvision->maxStripLen = StripLen;
1709 if (frame->curline%2) {
1710 if ((rc = usbvision_decompress(usbvision, StripData, V, &BlockPos, &BlockTypePos, IdxEnd/2)) != IdxEnd/2) {
1711 //return ParseState_Continue;
1715 if ((rc = usbvision_decompress(usbvision, StripData, U, &BlockPos, &BlockTypePos, IdxEnd/2)) != IdxEnd/2) {
1716 //return ParseState_Continue;
1720 if (BlockPos > usbvision->comprBlockPos) {
1721 usbvision->comprBlockPos = BlockPos;
1723 if (BlockPos > StripLen) {
1724 usbvision->stripLenErrors++;
1727 for (Idx = 0; Idx < IdxEnd; Idx++) {
1728 if((overlay) && (clipped_pixel(clipmask_index))) {
1729 f += bytes_per_pixel;
1731 else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
1733 *f++ = Idx & 0x01 ? U[Idx/2] : V[Idx/2];
1735 else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) {
1742 else if (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420) {
1744 if ( !(( Idx & 0x01 ) | ( frame->curline & 0x01 )) ){
1746 /* only need do this for 1 in 4 pixels */
1747 /* intraframe buffer is YUV420 format */
1755 YUV_TO_RGB_BY_THE_BOOK(Y[Idx], U[Idx/2], V[Idx/2], rv, gv, bv);
1756 switch (frame->v4l2_format.format) {
1757 case V4L2_PIX_FMT_GREY:
1760 case V4L2_PIX_FMT_RGB555:
1761 *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 2));
1762 *f++ = (0x03 & (gv >> 6)) | (0x7C & (rv >> 1));
1764 case V4L2_PIX_FMT_RGB565:
1765 *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 3));
1766 *f++ = (0x07 & (gv >> 5)) | (0xF8 & rv);
1768 case V4L2_PIX_FMT_RGB24:
1773 case V4L2_PIX_FMT_RGB32:
1783 /* Deal with non-integer no. of bytes for YUV420P */
1784 if (frame->v4l2_format.format != V4L2_PIX_FMT_YVU420 )
1785 *pcopylen += frame->v4l2_linesize;
1787 *pcopylen += frame->curline & 0x01 ? frame->v4l2_linesize : frame->v4l2_linesize << 1;
1789 frame->curline += 1;
1791 if (frame->curline >= frame->frmheight) {
1792 return ParseState_NextFrame;
1795 return ParseState_Continue;
1802 * usbvision_parse_lines_420()
1804 * Parse two lines from the scratch buffer, put
1805 * decoded RGB value into the current frame buffer and add the written
1806 * number of bytes (RGB) to the *pcopylen.
1809 static enum ParseState usbvision_parse_lines_420(struct usb_usbvision *usbvision,
1812 struct usbvision_frame *frame;
1813 unsigned char *f_even = NULL, *f_odd = NULL;
1814 unsigned int pixel_per_line, block;
1815 int pixel, block_split;
1816 int y_ptr, u_ptr, v_ptr, y_odd_offset;
1817 const int y_block_size = 128;
1818 const int uv_block_size = 64;
1819 const int sub_block_size = 32;
1820 const int y_step[] = { 0, 0, 0, 2 }, y_step_size = 4;
1821 const int uv_step[]= { 0, 0, 0, 4 }, uv_step_size = 4;
1822 unsigned char y[2], u, v; /* YUV components */
1823 int y_, u_, v_, vb, uvg, ur;
1824 int r_, g_, b_; /* RGB components */
1826 int clipmask_even_index, clipmask_odd_index, bytes_per_pixel;
1827 int clipmask_add, stretch_bytes;
1828 int overlay = usbvision->overlay;
1831 frame = &usbvision->overlay_frame;
1832 if (usbvision->overlay_base == NULL) {
1833 //video_buffer is not set yet
1834 return ParseState_NextFrame;
1836 f_even = usbvision->overlay_win + frame->curline *
1837 usbvision->vid_buf.fmt.bytesperline;
1838 f_odd = f_even + usbvision->vid_buf.fmt.bytesperline * usbvision->stretch_height;
1841 frame = &usbvision->frame[usbvision->curFrameNum];
1842 f_even = frame->data + (frame->v4l2_linesize * frame->curline);
1843 f_odd = f_even + frame->v4l2_linesize * usbvision->stretch_height;
1846 /* Make sure there's enough data for the entire line */
1847 /* In this mode usbvision transfer 3 bytes for every 2 pixels */
1848 /* I need two lines to decode the color */
1849 bytes_per_pixel = frame->v4l2_format.bytes_per_pixel;
1850 stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel;
1851 clipmask_even_index = frame->curline * MAX_FRAME_WIDTH;
1852 clipmask_odd_index = clipmask_even_index + MAX_FRAME_WIDTH;
1853 clipmask_add = usbvision->stretch_width;
1854 pixel_per_line = frame->isocHeader.frameWidth;
1856 if (scratch_len(usbvision) < (int)pixel_per_line * 3) {
1857 //printk(KERN_DEBUG "out of data, need %d\n", len);
1858 return ParseState_Out;
1861 if ((frame->curline + 1) >= frame->frmheight) {
1862 return ParseState_NextFrame;
1865 block_split = (pixel_per_line%y_block_size) ? 1 : 0; //are some blocks splitted into different lines?
1867 y_odd_offset = (pixel_per_line / y_block_size) * (y_block_size + uv_block_size)
1868 + block_split * uv_block_size;
1870 scratch_set_extra_ptr(usbvision, &y_ptr, y_odd_offset);
1871 scratch_set_extra_ptr(usbvision, &u_ptr, y_block_size);
1872 scratch_set_extra_ptr(usbvision, &v_ptr, y_odd_offset
1873 + (4 - block_split) * sub_block_size);
1875 for (block = 0; block < (pixel_per_line / sub_block_size);
1879 for (pixel = 0; pixel < sub_block_size; pixel +=2) {
1880 scratch_get(usbvision, &y[0], 2);
1881 scratch_get_extra(usbvision, &u, &u_ptr, 1);
1882 scratch_get_extra(usbvision, &v, &v_ptr, 1);
1884 //I don't use the YUV_TO_RGB macro for better performance
1888 uvg= -53281 * u_ - 25625 * v_;
1891 if((overlay) && (clipped_pixel(clipmask_even_index))) {
1892 f_even += bytes_per_pixel;
1894 else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
1899 y_ = 76284 * (y[0] - 16);
1901 b_ = (y_ + vb) >> 16;
1902 g_ = (y_ + uvg)>> 16;
1903 r_ = (y_ + ur) >> 16;
1905 switch (frame->v4l2_format.format) {
1906 case V4L2_PIX_FMT_RGB565:
1908 *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3));
1909 *f_even++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_));
1911 case V4L2_PIX_FMT_RGB24:
1912 *f_even++ = LIMIT_RGB(b_);
1913 *f_even++ = LIMIT_RGB(g_);
1914 *f_even++ = LIMIT_RGB(r_);
1916 case V4L2_PIX_FMT_RGB32:
1917 *f_even++ = LIMIT_RGB(b_);
1918 *f_even++ = LIMIT_RGB(g_);
1919 *f_even++ = LIMIT_RGB(r_);
1922 case V4L2_PIX_FMT_RGB555:
1924 *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2));
1925 *f_even++ = (0x03 & ( g >> 6)) |
1926 (0x7C & (LIMIT_RGB(r_) >> 1));
1930 clipmask_even_index += clipmask_add;
1931 f_even += stretch_bytes;
1933 if((overlay) && (clipped_pixel(clipmask_even_index))) {
1934 f_even += bytes_per_pixel;
1936 else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
1941 y_ = 76284 * (y[1] - 16);
1943 b_ = (y_ + vb) >> 16;
1944 g_ = (y_ + uvg)>> 16;
1945 r_ = (y_ + ur) >> 16;
1947 switch (frame->v4l2_format.format) {
1948 case V4L2_PIX_FMT_RGB565:
1950 *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3));
1951 *f_even++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_));
1953 case V4L2_PIX_FMT_RGB24:
1954 *f_even++ = LIMIT_RGB(b_);
1955 *f_even++ = LIMIT_RGB(g_);
1956 *f_even++ = LIMIT_RGB(r_);
1958 case V4L2_PIX_FMT_RGB32:
1959 *f_even++ = LIMIT_RGB(b_);
1960 *f_even++ = LIMIT_RGB(g_);
1961 *f_even++ = LIMIT_RGB(r_);
1964 case V4L2_PIX_FMT_RGB555:
1966 *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2));
1967 *f_even++ = (0x03 & ( g >> 6)) |
1968 (0x7C & (LIMIT_RGB(r_) >> 1));
1972 clipmask_even_index += clipmask_add;
1973 f_even += stretch_bytes;
1975 scratch_get_extra(usbvision, &y[0], &y_ptr, 2);
1977 if ((overlay) && (clipped_pixel(clipmask_odd_index))) {
1978 f_odd += bytes_per_pixel;
1980 else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
1985 y_ = 76284 * (y[0] - 16);
1987 b_ = (y_ + vb) >> 16;
1988 g_ = (y_ + uvg)>> 16;
1989 r_ = (y_ + ur) >> 16;
1991 switch (frame->v4l2_format.format) {
1992 case V4L2_PIX_FMT_RGB565:
1994 *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3));
1995 *f_odd++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_));
1997 case V4L2_PIX_FMT_RGB24:
1998 *f_odd++ = LIMIT_RGB(b_);
1999 *f_odd++ = LIMIT_RGB(g_);
2000 *f_odd++ = LIMIT_RGB(r_);
2002 case V4L2_PIX_FMT_RGB32:
2003 *f_odd++ = LIMIT_RGB(b_);
2004 *f_odd++ = LIMIT_RGB(g_);
2005 *f_odd++ = LIMIT_RGB(r_);
2008 case V4L2_PIX_FMT_RGB555:
2010 *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2));
2011 *f_odd++ = (0x03 & ( g >> 6)) |
2012 (0x7C & (LIMIT_RGB(r_) >> 1));
2016 clipmask_odd_index += clipmask_add;
2017 f_odd += stretch_bytes;
2019 if((overlay) && (clipped_pixel(clipmask_odd_index))) {
2020 f_odd += bytes_per_pixel;
2022 else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
2027 y_ = 76284 * (y[1] - 16);
2029 b_ = (y_ + vb) >> 16;
2030 g_ = (y_ + uvg)>> 16;
2031 r_ = (y_ + ur) >> 16;
2033 switch (frame->v4l2_format.format) {
2034 case V4L2_PIX_FMT_RGB565:
2036 *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3));
2037 *f_odd++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_));
2039 case V4L2_PIX_FMT_RGB24:
2040 *f_odd++ = LIMIT_RGB(b_);
2041 *f_odd++ = LIMIT_RGB(g_);
2042 *f_odd++ = LIMIT_RGB(r_);
2044 case V4L2_PIX_FMT_RGB32:
2045 *f_odd++ = LIMIT_RGB(b_);
2046 *f_odd++ = LIMIT_RGB(g_);
2047 *f_odd++ = LIMIT_RGB(r_);
2050 case V4L2_PIX_FMT_RGB555:
2052 *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2));
2053 *f_odd++ = (0x03 & ( g >> 6)) |
2054 (0x7C & (LIMIT_RGB(r_) >> 1));
2058 clipmask_odd_index += clipmask_add;
2059 f_odd += stretch_bytes;
2062 scratch_rm_old(usbvision,y_step[block % y_step_size] * sub_block_size);
2063 scratch_inc_extra_ptr(&y_ptr, y_step[(block + 2 * block_split) % y_step_size]
2065 scratch_inc_extra_ptr(&u_ptr, uv_step[block % uv_step_size]
2067 scratch_inc_extra_ptr(&v_ptr, uv_step[(block + 2 * block_split) % uv_step_size]
2071 scratch_rm_old(usbvision, pixel_per_line * 3 / 2
2072 + block_split * sub_block_size);
2074 frame->curline += 2 * usbvision->stretch_height;
2075 *pcopylen += frame->v4l2_linesize * 2 * usbvision->stretch_height;
2077 if (frame->curline >= frame->frmheight)
2078 return ParseState_NextFrame;
2080 return ParseState_Continue;
2084 * usbvision_parse_data()
2086 * Generic routine to parse the scratch buffer. It employs either
2087 * usbvision_find_header() or usbvision_parse_lines() to do most
2091 static void usbvision_parse_data(struct usb_usbvision *usbvision)
2093 struct usbvision_frame *frame;
2094 enum ParseState newstate;
2097 if (usbvision->overlay) {
2098 frame = &usbvision->overlay_frame;
2101 frame = &usbvision->frame[usbvision->curFrameNum];
2104 PDEBUG(DBG_PARSE, "parsing len=%d\n", scratch_len(usbvision));
2109 newstate = ParseState_Out;
2110 if (scratch_len(usbvision)) {
2111 if (frame->scanstate == ScanState_Scanning) {
2112 newstate = usbvision_find_header(usbvision);
2114 else if (frame->scanstate == ScanState_Lines) {
2115 if (usbvision->isocMode == ISOC_MODE_YUV420) {
2116 newstate = usbvision_parse_lines_420(usbvision, ©len);
2118 else if (usbvision->isocMode == ISOC_MODE_YUV422) {
2119 newstate = usbvision_parse_lines_422(usbvision, ©len);
2121 else if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
2122 newstate = usbvision_parse_compress(usbvision, ©len);
2127 if (newstate == ParseState_Continue) {
2130 else if ((newstate == ParseState_NextFrame) || (newstate == ParseState_Out)) {
2134 return; /* ParseState_EndParse */
2138 if (newstate == ParseState_NextFrame) {
2139 frame->grabstate = FrameState_Done;
2140 do_gettimeofday(&(frame->timestamp));
2141 frame->sequence = usbvision->frame_num;
2142 if (usbvision->overlay) {
2143 frame->grabstate = FrameState_Grabbing;
2144 frame->scanstate = ScanState_Scanning;
2145 frame->scanlength = 0;
2149 usbvision->curFrameNum = -1;
2151 usbvision->frame_num++;
2153 /* Optionally display statistics on the screen */
2154 if (flags & FLAGS_OSD_STATS)
2155 usbvision_osd_stats(usbvision, frame);
2157 /* This will cause the process to request another frame. */
2158 if (waitqueue_active(&frame->wq)) {
2159 wake_up_interruptible(&frame->wq);
2163 /* Update the frame's uncompressed length. */
2164 frame->scanlength += copylen;
2169 * Make all of the blocks of data contiguous
2171 static int usbvision_compress_isochronous(struct usb_usbvision *usbvision,
2174 unsigned char *packet_data;
2177 for (i = 0; i < urb->number_of_packets; i++) {
2178 int packet_len = urb->iso_frame_desc[i].actual_length;
2179 int packet_stat = urb->iso_frame_desc[i].status;
2181 packet_data = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
2183 /* Detect and ignore errored packets */
2184 if (packet_stat) { // packet_stat != 0 ?????????????
2185 PDEBUG(DBG_ISOC, "data error: [%d] len=%d, status=%X", i, packet_len, packet_stat);
2186 usbvision->isocErrCount++;
2190 /* Detect and ignore empty packets */
2191 if (packet_len < 0) {
2192 PDEBUG(DBG_ISOC, "error packet [%d]", i);
2193 usbvision->isocSkipCount++;
2196 else if (packet_len == 0) { /* Frame end ????? */
2197 PDEBUG(DBG_ISOC, "null packet [%d]", i);
2198 usbvision->isocstate=IsocState_NoFrame;
2199 usbvision->isocSkipCount++;
2202 else if (packet_len > usbvision->isocPacketSize) {
2203 PDEBUG(DBG_ISOC, "packet[%d] > isocPacketSize", i);
2204 usbvision->isocSkipCount++;
2208 PDEBUG(DBG_ISOC, "packet ok [%d] len=%d", i, packet_len);
2210 if (usbvision->isocstate==IsocState_NoFrame) { //new frame begins
2211 usbvision->isocstate=IsocState_InFrame;
2212 scratch_mark_header(usbvision);
2213 usbvision_measure_bandwidth(usbvision);
2214 PDEBUG(DBG_ISOC, "packet with header");
2218 * If usbvision continues to feed us with data but there is no
2219 * consumption (if, for example, V4L client fell asleep) we
2220 * may overflow the buffer. We have to move old data over to
2221 * free room for new data. This is bad for old data. If we
2222 * just drop new data then it's bad for new data... choose
2223 * your favorite evil here.
2225 if (scratch_free(usbvision) < packet_len) {
2227 usbvision->scratch_ovf_count++;
2228 PDEBUG(DBG_ISOC, "scratch buf overflow! scr_len: %d, n: %d",
2229 scratch_len(usbvision), packet_len);
2230 scratch_rm_old(usbvision, packet_len - scratch_free(usbvision));
2233 /* Now we know that there is enough room in scratch buffer */
2234 scratch_put(usbvision, packet_data, packet_len);
2235 totlen += packet_len;
2236 usbvision->isocDataCount += packet_len;
2237 usbvision->isocPacketCount++;
2243 printk(KERN_DEBUG "+%d.\n", usbvision->scratchlen);
2244 usbvision_hexdump(data0, (totlen > 64) ? 64 : totlen);
2252 static void usbvision_isocIrq(struct urb *urb, struct pt_regs *regs)
2256 struct usb_usbvision *usbvision = urb->context;
2258 unsigned long startTime = jiffies;
2260 /* We don't want to do anything if we are about to be removed! */
2261 if (!USBVISION_IS_OPERATIONAL(usbvision))
2264 if (!usbvision->streaming) {
2265 PDEBUG(DBG_IRQ, "oops, not streaming, but interrupt");
2269 /* Copy the data received into our scratch buffer */
2270 len = usbvision_compress_isochronous(usbvision, urb);
2272 usbvision->isocUrbCount++;
2273 usbvision->urb_length = len;
2275 for (i = 0; i < USBVISION_URB_FRAMES; i++) {
2276 urb->iso_frame_desc[i].status = 0;
2277 urb->iso_frame_desc[i].actual_length = 0;
2280 urb->dev = usbvision->dev;
2281 errCode = usb_submit_urb (urb, GFP_ATOMIC);
2283 /* Disable this warning. By design of the driver. */
2285 // err("%s: usb_submit_urb failed: error %d", __FUNCTION__, errCode);
2288 /* If we collected enough data let's parse! */
2289 if (scratch_len(usbvision) > USBVISION_HEADER_LENGTH) { /* 12 == header_length */
2290 /*If we don't have a frame we're current working on, complain */
2291 if ((usbvision->curFrameNum >= 0) || (usbvision->overlay))
2292 usbvision_parse_data(usbvision);
2294 PDEBUG(DBG_IRQ, "received data, but no one needs it");
2295 scratch_reset(usbvision);
2298 usbvision->timeInIrq += jiffies - startTime;
2302 /*************************************/
2303 /* Low level usbvision access functions */
2304 /*************************************/
2307 * usbvision_read_reg()
2309 * return < 0 -> Error
2313 static int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg)
2316 unsigned char buffer[1];
2318 if (!USBVISION_IS_OPERATIONAL(usbvision))
2321 errCode = usb_control_msg(usbvision->dev, usb_rcvctrlpipe(usbvision->dev, 1),
2323 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT,
2324 0, (__u16) reg, buffer, 1, HZ);
2327 err("%s: failed: error %d", __FUNCTION__, errCode);
2334 * usbvision_write_reg()
2336 * return 1 -> Reg written
2337 * 0 -> usbvision is not yet ready
2338 * -1 -> Something went wrong
2341 static int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg,
2342 unsigned char value)
2346 if (!USBVISION_IS_OPERATIONAL(usbvision))
2349 errCode = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
2351 USB_DIR_OUT | USB_TYPE_VENDOR |
2352 USB_RECIP_ENDPOINT, 0, (__u16) reg, &value, 1, HZ);
2355 err("%s: failed: error %d", __FUNCTION__, errCode);
2361 static void usbvision_ctrlUrb_complete(struct urb *urb, struct pt_regs *regs)
2363 struct usb_usbvision *usbvision = (struct usb_usbvision *)urb->context;
2365 PDEBUG(DBG_IRQ, "");
2366 usbvision->ctrlUrbBusy = 0;
2367 if (waitqueue_active(&usbvision->ctrlUrb_wq)) {
2368 wake_up_interruptible(&usbvision->ctrlUrb_wq);
2373 static int usbvision_write_reg_irq(struct usb_usbvision *usbvision,int address,
2374 unsigned char *data, int len)
2378 PDEBUG(DBG_IRQ, "");
2382 // down(&usbvision->ctrlUrbLock);
2383 if (usbvision->ctrlUrbBusy) {
2384 // up(&usbvision->ctrlUrbLock);
2387 usbvision->ctrlUrbBusy = 1;
2388 // up(&usbvision->ctrlUrbLock);
2390 usbvision->ctrlUrbSetup.bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT;
2391 usbvision->ctrlUrbSetup.bRequest = USBVISION_OP_CODE;
2392 usbvision->ctrlUrbSetup.wValue = 0;
2393 usbvision->ctrlUrbSetup.wIndex = cpu_to_le16(address);
2394 usbvision->ctrlUrbSetup.wLength = cpu_to_le16(len);
2395 usb_fill_control_urb (usbvision->ctrlUrb, usbvision->dev,
2396 usb_sndctrlpipe(usbvision->dev, 1),
2397 (unsigned char *)&usbvision->ctrlUrbSetup,
2398 (void *)usbvision->ctrlUrbBuffer, len,
2399 usbvision_ctrlUrb_complete,
2402 memcpy(usbvision->ctrlUrbBuffer, data, len);
2404 errCode = usb_submit_urb(usbvision->ctrlUrb, GFP_ATOMIC);
2406 // error in usb_submit_urb()
2407 usbvision->ctrlUrbBusy = 0;
2409 PDEBUG(DBG_IRQ, "submit %d byte: error %d", len, errCode);
2416 static int usbvision_init_compression(struct usb_usbvision *usbvision)
2420 usbvision->lastIsocFrameNum = -1;
2421 usbvision->isocDataCount = 0;
2422 usbvision->isocPacketCount = 0;
2423 usbvision->isocSkipCount = 0;
2424 usbvision->comprLevel = 50;
2425 usbvision->lastComprLevel = -1;
2426 usbvision->isocUrbCount = 0;
2427 usbvision->requestIntra = 1;
2428 usbvision->isocMeasureBandwidthCount = 0;
2433 /* this function measures the used bandwidth since last call
2434 * return: 0 : no error
2435 * sets usedBandwidth to 1-100 : 1-100% of full bandwidth resp. to isocPacketSize
2437 static int usbvision_measure_bandwidth (struct usb_usbvision *usbvision)
2441 if (usbvision->isocMeasureBandwidthCount < 2) { // this gives an average bandwidth of 3 frames
2442 usbvision->isocMeasureBandwidthCount++;
2445 if ((usbvision->isocPacketSize > 0) && (usbvision->isocPacketCount > 0)) {
2446 usbvision->usedBandwidth = usbvision->isocDataCount /
2447 (usbvision->isocPacketCount + usbvision->isocSkipCount) *
2448 100 / usbvision->isocPacketSize;
2450 usbvision->isocMeasureBandwidthCount = 0;
2451 usbvision->isocDataCount = 0;
2452 usbvision->isocPacketCount = 0;
2453 usbvision->isocSkipCount = 0;
2457 static int usbvision_adjust_compression (struct usb_usbvision *usbvision)
2460 unsigned char buffer[6];
2462 PDEBUG(DBG_IRQ, "");
2463 if ((adjustCompression) && (usbvision->usedBandwidth > 0)) {
2464 usbvision->comprLevel += (usbvision->usedBandwidth - 90) / 2;
2465 RESTRICT_TO_RANGE(usbvision->comprLevel, 0, 100);
2466 if (usbvision->comprLevel != usbvision->lastComprLevel) {
2468 if (usbvision->bridgeType == BRIDGE_NT1004 || usbvision->bridgeType == BRIDGE_NT1005) {
2469 buffer[0] = (unsigned char)(4 + 16 * usbvision->comprLevel / 100); // PCM Threshold 1
2470 buffer[1] = (unsigned char)(4 + 8 * usbvision->comprLevel / 100); // PCM Threshold 2
2471 distorsion = 7 + 248 * usbvision->comprLevel / 100;
2472 buffer[2] = (unsigned char)(distorsion & 0xFF); // Average distorsion Threshold (inter)
2473 buffer[3] = (unsigned char)(distorsion & 0xFF); // Average distorsion Threshold (intra)
2474 distorsion = 1 + 42 * usbvision->comprLevel / 100;
2475 buffer[4] = (unsigned char)(distorsion & 0xFF); // Maximum distorsion Threshold (inter)
2476 buffer[5] = (unsigned char)(distorsion & 0xFF); // Maximum distorsion Threshold (intra)
2478 else { //BRIDGE_NT1003
2479 buffer[0] = (unsigned char)(4 + 16 * usbvision->comprLevel / 100); // PCM threshold 1
2480 buffer[1] = (unsigned char)(4 + 8 * usbvision->comprLevel / 100); // PCM threshold 2
2481 distorsion = 2 + 253 * usbvision->comprLevel / 100;
2482 buffer[2] = (unsigned char)(distorsion & 0xFF); // distorsion threshold bit0-7
2483 buffer[3] = 0; //(unsigned char)((distorsion >> 8) & 0x0F); // distorsion threshold bit 8-11
2484 distorsion = 0 + 43 * usbvision->comprLevel / 100;
2485 buffer[4] = (unsigned char)(distorsion & 0xFF); // maximum distorsion bit0-7
2486 buffer[5] = 0; //(unsigned char)((distorsion >> 8) & 0x01); // maximum distorsion bit 8
2488 errCode = usbvision_write_reg_irq(usbvision, USBVISION_PCM_THR1, buffer, 6);
2490 PDEBUG(DBG_IRQ, "new compr params %#02x %#02x %#02x %#02x %#02x %#02x", buffer[0],
2491 buffer[1], buffer[2], buffer[3], buffer[4], buffer[5]);
2492 usbvision->lastComprLevel = usbvision->comprLevel;
2499 static int usbvision_request_intra (struct usb_usbvision *usbvision)
2502 unsigned char buffer[1];
2504 PDEBUG(DBG_IRQ, "");
2505 usbvision->requestIntra = 1;
2507 usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1);
2511 static int usbvision_unrequest_intra (struct usb_usbvision *usbvision)
2514 unsigned char buffer[1];
2516 PDEBUG(DBG_IRQ, "");
2517 usbvision->requestIntra = 0;
2519 usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1);
2523 /* ----------------------------------------------------------------------- */
2525 /* ----------------------------------------------------------------------- */
2527 static void call_i2c_clients(struct usb_usbvision *usbvision, unsigned int cmd,
2533 for (i = 0; i < USBVISION_I2C_CLIENTS_MAX; i++) {
2534 if (NULL == usbvision->i2c_clients[i])
2536 if (NULL == usbvision->i2c_clients[i]->driver->command)
2538 usbvision->i2c_clients[i]->driver->command(usbvision->i2c_clients[i], cmd, arg);
2542 static int attach_inform(struct i2c_client *client)
2544 struct usb_usbvision *usbvision;
2545 struct tuner_setup tun_addr;
2549 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
2550 usbvision = (struct usb_usbvision *)client->adapter->data;
2552 usbvision = (struct usb_usbvision *)i2c_get_adapdata(client->adapter);
2555 for (i = 0; i < USBVISION_I2C_CLIENTS_MAX; i++) {
2556 if (usbvision->i2c_clients[i] == NULL ||
2557 usbvision->i2c_clients[i]->driver->id ==
2558 client->driver->id) {
2559 usbvision->i2c_clients[i] = client;
2563 if ((usbvision->have_tuner) && (usbvision->tuner_type != -1)) {
2564 tun_addr.mode_mask = T_ANALOG_TV;
2565 tun_addr.type = usbvision->tuner_type;
2566 tun_addr.addr = ADDR_UNSET;
2567 client->driver->command(client,TUNER_SET_TYPE_ADDR, &tun_addr);
2569 call_i2c_clients(usbvision, VIDIOC_S_INPUT, &usbvision->input.index);
2571 // FIXME : need to add a call VIDIOC_S_CTRL for each control
2572 /* call_i2c_clients(usbvision, DECODER_SET_PICTURE, &usbvision->vpic); */
2573 stdId = usbvision->input.std;
2574 call_i2c_clients(usbvision, VIDIOC_S_STD, &stdId);
2576 PDEBUG(DBG_I2C, "usbvision[%d] attaches %s", usbvision->nr, client->name);
2581 static int detach_inform(struct i2c_client *client)
2583 struct usb_usbvision *usbvision;
2586 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
2587 usbvision = (struct usb_usbvision *)client->adapter->data;
2589 usbvision = (struct usb_usbvision *)i2c_get_adapdata(client->adapter);
2592 PDEBUG(DBG_I2C, "usbvision[%d] detaches %s", usbvision->nr, client->name);
2593 for (i = 0; i < USBVISION_I2C_CLIENTS_MAX; i++) {
2594 if (NULL != usbvision->i2c_clients[i] &&
2595 usbvision->i2c_clients[i]->driver->id ==
2596 client->driver->id) {
2597 usbvision->i2c_clients[i] = NULL;
2605 usbvision_i2c_read_max4(struct usb_usbvision *usbvision, unsigned char addr,
2606 char *buf, short len)
2610 for (retries = 5;;) {
2611 rc = usbvision_write_reg(usbvision, USBVISION_SER_ADRS, addr);
2615 /* Initiate byte read cycle */
2616 /* USBVISION_SER_CONT <- d0-d2 n. of bytes to r/w */
2618 rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT,
2619 (len & 0x07) | 0x18);
2623 /* Test for Busy and ACK */
2625 /* USBVISION_SER_CONT -> d4 == 0 busy */
2626 rc = usbvision_read_reg(usbvision, USBVISION_SER_CONT);
2627 } while (rc > 0 && ((rc & 0x10) != 0)); /* Retry while busy */
2631 /* USBVISION_SER_CONT -> d5 == 1 Not ack */
2632 if ((rc & 0x20) == 0) /* Ack? */
2636 rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT, 0x00);
2646 buf[3] = usbvision_read_reg(usbvision, USBVISION_SER_DAT4);
2648 buf[2] = usbvision_read_reg(usbvision, USBVISION_SER_DAT3);
2650 buf[1] = usbvision_read_reg(usbvision, USBVISION_SER_DAT2);
2652 buf[0] = usbvision_read_reg(usbvision, USBVISION_SER_DAT1);
2656 "usbvision_i2c_read_max4: buffer length > 4\n");
2659 if (debug & DBG_I2C) {
2661 for (idx = 0; idx < len; idx++) {
2662 PDEBUG(DBG_I2C, "read %x from address %x", (unsigned char)buf[idx], addr);
2669 static int usbvision_i2c_write_max4(struct usb_usbvision *usbvision,
2670 unsigned char addr, const char *buf,
2675 unsigned char value[6];
2676 unsigned char ser_cont;
2678 ser_cont = (len & 0x07) | 0x10;
2681 value[1] = ser_cont;
2682 for (i = 0; i < len; i++)
2683 value[i + 2] = buf[i];
2685 for (retries = 5;;) {
2686 rc = usb_control_msg(usbvision->dev,
2687 usb_sndctrlpipe(usbvision->dev, 1),
2689 USB_DIR_OUT | USB_TYPE_VENDOR |
2690 USB_RECIP_ENDPOINT, 0,
2691 (__u16) USBVISION_SER_ADRS, value,
2697 rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT,
2698 (len & 0x07) | 0x10);
2702 /* Test for Busy and ACK */
2704 rc = usbvision_read_reg(usbvision, USBVISION_SER_CONT);
2705 } while (rc > 0 && ((rc & 0x10) != 0)); /* Retry while busy */
2709 if ((rc & 0x20) == 0) /* Ack? */
2713 usbvision_write_reg(usbvision, USBVISION_SER_CONT, 0x00);
2720 if (debug & DBG_I2C) {
2722 for (idx = 0; idx < len; idx++) {
2723 PDEBUG(DBG_I2C, "wrote %x at address %x", (unsigned char)buf[idx], addr);
2729 static int usbvision_i2c_write(void *data, unsigned char addr, char *buf,
2737 struct usb_usbvision *usbvision = (struct usb_usbvision *) data;
2740 count = (len > maxLen) ? maxLen : len;
2741 retval = usbvision_i2c_write_max4(usbvision, addr, bufPtr, count);
2747 return (retval < 0) ? retval : -EFAULT;
2752 static int usbvision_i2c_read(void *data, unsigned char addr, char *buf,
2759 struct usb_usbvision *usbvision = (struct usb_usbvision *) data;
2762 count = (len > 3) ? 4 : len;
2763 retval = usbvision_i2c_read_max4(usbvision, addr, temp, count);
2765 for (i = 0; i < len; i++)
2766 buf[rdcount + i] = temp[i];
2770 return (retval < 0) ? retval : -EFAULT;
2775 static struct i2c_algo_usb_data i2c_algo_template = {
2777 .inb = usbvision_i2c_read,
2778 .outb = usbvision_i2c_write,
2784 static struct i2c_adapter i2c_adap_template = {
2785 .owner = THIS_MODULE,
2786 .name = "usbvision",
2787 .id = I2C_HW_B_BT848, /* FIXME */
2790 .client_register = attach_inform,
2791 .client_unregister = detach_inform,
2792 #if defined (I2C_ADAP_CLASS_TV_ANALOG)
2793 .class = I2C_ADAP_CLASS_TV_ANALOG,
2794 #elif defined (I2C_CLASS_TV_ANALOG)
2795 .class = I2C_CLASS_TV_ANALOG,
2799 static struct i2c_client i2c_client_template = {
2800 .name = "usbvision internal",
2807 static int usbvision_init_i2c(struct usb_usbvision *usbvision)
2809 memcpy(&usbvision->i2c_adap, &i2c_adap_template,
2810 sizeof(struct i2c_adapter));
2811 memcpy(&usbvision->i2c_algo, &i2c_algo_template,
2812 sizeof(struct i2c_algo_usb_data));
2813 memcpy(&usbvision->i2c_client, &i2c_client_template,
2814 sizeof(struct i2c_client));
2816 sprintf(usbvision->i2c_adap.name + strlen(usbvision->i2c_adap.name),
2817 " #%d", usbvision->vdev->minor & 0x1f);
2818 PDEBUG(DBG_I2C, "Adaptername: %s", usbvision->i2c_adap.name);
2820 i2c_set_adapdata(&usbvision->i2c_adap, usbvision);
2821 i2c_set_clientdata(&usbvision->i2c_client, usbvision);
2822 i2c_set_algo_usb_data(&usbvision->i2c_algo, usbvision);
2824 usbvision->i2c_adap.algo_data = &usbvision->i2c_algo;
2825 usbvision->i2c_client.adapter = &usbvision->i2c_adap;
2827 if (usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_IIC_LRNACK) < 0) {
2828 printk(KERN_ERR "usbvision_init_i2c: can't wirte reg\n");
2833 /* Request the load of the i2c modules we need */
2835 switch (usbvision_device_data[usbvision->DevModel].Codec) {
2837 request_module("saa7115");
2840 request_module("saa7115");
2843 if (usbvision_device_data[usbvision->DevModel].Tuner == 1) {
2844 request_module("tuner");
2849 usbvision->i2c_ok = usbvision_i2c_usb_add_bus(&usbvision->i2c_adap);
2851 return usbvision->i2c_ok;
2856 /****************************/
2857 /* usbvision utility functions */
2858 /****************************/
2860 static int usbvision_power_off(struct usb_usbvision *usbvision)
2864 PDEBUG(DBG_FUNC, "");
2866 errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN);
2868 usbvision->power = 0;
2870 PDEBUG(DBG_FUNC, "%s: errCode %d", (errCode!=1)?"ERROR":"power is off", errCode);
2875 // to call usbvision_power_off from task queue
2876 static void call_usbvision_power_off(void *_usbvision)
2878 struct usb_usbvision *usbvision = _usbvision;
2880 PDEBUG(DBG_FUNC, "");
2881 down_interruptible(&usbvision->lock);
2882 if(usbvision->user == 0) {
2883 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
2884 usbvision_power_off(usbvision);
2885 usbvision->initialized = 0;
2887 up(&usbvision->lock);
2892 * usbvision_set_video_format()
2895 static int usbvision_set_video_format(struct usb_usbvision *usbvision, int format)
2897 static const char proc[] = "usbvision_set_video_format";
2899 unsigned char value[2];
2901 if (!USBVISION_IS_OPERATIONAL(usbvision))
2904 PDEBUG(DBG_FUNC, "isocMode %#02x", format);
2906 if ((format != ISOC_MODE_YUV422)
2907 && (format != ISOC_MODE_YUV420)
2908 && (format != ISOC_MODE_COMPRESS)) {
2909 printk(KERN_ERR "usbvision: unknown video format %02x, using default YUV420",
2911 format = ISOC_MODE_YUV420;
2913 value[0] = 0x0A; //TODO: See the effect of the filter
2915 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
2917 USB_DIR_OUT | USB_TYPE_VENDOR |
2918 USB_RECIP_ENDPOINT, 0,
2919 (__u16) USBVISION_FILT_CONT, value, 2, HZ);
2922 printk(KERN_ERR "%s: ERROR=%d. USBVISION stopped - "
2923 "reconnect or reload driver.\n", proc, rc);
2925 usbvision->isocMode = format;
2930 * usbvision_set_output()
2934 static int usbvision_set_output(struct usb_usbvision *usbvision, int width,
2938 int UsbWidth, UsbHeight;
2939 unsigned int frameRate=0, frameDrop=0;
2940 unsigned char value[4];
2942 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
2946 if (width > MAX_USB_WIDTH) {
2947 UsbWidth = width / 2;
2948 usbvision->stretch_width = 2;
2952 usbvision->stretch_width = 1;
2955 if (height > MAX_USB_HEIGHT) {
2956 UsbHeight = height / 2;
2957 usbvision->stretch_height = 2;
2961 usbvision->stretch_height = 1;
2964 RESTRICT_TO_RANGE(UsbWidth, MIN_FRAME_WIDTH, MAX_USB_WIDTH);
2965 UsbWidth &= ~(MIN_FRAME_WIDTH-1);
2966 RESTRICT_TO_RANGE(UsbHeight, MIN_FRAME_HEIGHT, MAX_USB_HEIGHT);
2969 PDEBUG(DBG_FUNC, "usb %dx%d; screen %dx%d; stretch %dx%d",
2970 UsbWidth, UsbHeight, width, height,
2971 usbvision->stretch_width, usbvision->stretch_height);
2973 /* I'll not rewrite the same values */
2974 if ((UsbWidth != usbvision->curwidth) || (UsbHeight != usbvision->curheight)) {
2975 value[0] = UsbWidth & 0xff; //LSB
2976 value[1] = (UsbWidth >> 8) & 0x03; //MSB
2977 value[2] = UsbHeight & 0xff; //LSB
2978 value[3] = (UsbHeight >> 8) & 0x03; //MSB
2980 errCode = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
2982 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT,
2983 0, (__u16) USBVISION_LXSIZE_O, value, 4, HZ);
2986 err("%s failed: error %d", __FUNCTION__, errCode);
2989 usbvision->curwidth = usbvision->stretch_width * UsbWidth;
2990 usbvision->curheight = usbvision->stretch_height * UsbHeight;
2993 if (usbvision->isocMode == ISOC_MODE_YUV422) {
2994 frameRate = (usbvision->isocPacketSize * 1000) / (UsbWidth * UsbHeight * 2);
2996 else if (usbvision->isocMode == ISOC_MODE_YUV420) {
2997 frameRate = (usbvision->isocPacketSize * 1000) / ((UsbWidth * UsbHeight * 12) / 8);
3000 frameRate = FRAMERATE_MAX;
3003 if (usbvision->input.std & V4L2_STD_625_50) {
3004 frameDrop = frameRate * 32 / 25 - 1;
3006 else if (usbvision->input.std & V4L2_STD_525_60) {
3007 frameDrop = frameRate * 32 / 30 - 1;
3010 RESTRICT_TO_RANGE(frameDrop, FRAMERATE_MIN, FRAMERATE_MAX);
3012 PDEBUG(DBG_FUNC, "frameRate %d fps, frameDrop %d", frameRate, frameDrop);
3014 frameDrop = FRAMERATE_MAX; // We can allow the maximum here, because dropping is controlled
3016 /* frameDrop = 7; => framePhase = 1, 5, 9, 13, 17, 21, 25, 0, 4, 8, ...
3018 => frameRate = (7 + 1) * 25 / 32 = 200 / 32 = 6.25;
3020 frameDrop = 9; => framePhase = 1, 5, 8, 11, 14, 17, 21, 24, 27, 1, 4, 8, ...
3021 => frameSkip = 4, 3, 3, 3, 3, 4, 3, 3, 3, 3, 4, ...
3022 => frameRate = (9 + 1) * 25 / 32 = 250 / 32 = 7.8125;
3024 errCode = usbvision_write_reg(usbvision, USBVISION_FRM_RATE, frameDrop);
3030 * usbvision_set_compress_params()
3034 static int usbvision_set_compress_params(struct usb_usbvision *usbvision)
3036 static const char proc[] = "usbvision_set_compresion_params: ";
3038 unsigned char value[6];
3040 value[0] = 0x0F; // Intra-Compression cycle
3041 value[1] = 0x01; // Reg.45 one line per strip
3042 value[2] = 0x00; // Reg.46 Force intra mode on all new frames
3043 value[3] = 0x00; // Reg.47 FORCE_UP <- 0 normal operation (not force)
3044 value[4] = 0xA2; // Reg.48 BUF_THR I'm not sure if this does something in not compressed mode.
3045 value[5] = 0x00; // Reg.49 DVI_YUV This has nothing to do with compression
3047 //catched values for NT1004
3048 // value[0] = 0xFF; // Never apply intra mode automatically
3049 // value[1] = 0xF1; // Use full frame height for virtual strip width; One line per strip
3050 // value[2] = 0x01; // Force intra mode on all new frames
3051 // value[3] = 0x00; // Strip size 400 Bytes; do not force up
3052 // value[4] = 0xA2; //
3053 if (!USBVISION_IS_OPERATIONAL(usbvision))
3056 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
3058 USB_DIR_OUT | USB_TYPE_VENDOR |
3059 USB_RECIP_ENDPOINT, 0,
3060 (__u16) USBVISION_INTRA_CYC, value, 5, HZ);
3063 printk(KERN_ERR "%sERROR=%d. USBVISION stopped - "
3064 "reconnect or reload driver.\n", proc, rc);
3068 if (usbvision->bridgeType == BRIDGE_NT1004) {
3069 value[0] = 20; // PCM Threshold 1
3070 value[1] = 12; // PCM Threshold 2
3071 value[2] = 255; // Distorsion Threshold inter
3072 value[3] = 255; // Distorsion Threshold intra
3073 value[4] = 43; // Max Distorsion inter
3074 value[5] = 43; // Max Distorsion intra
3077 value[0] = 20; // PCM Threshold 1
3078 value[1] = 12; // PCM Threshold 2
3079 value[2] = 255; // Distorsion Threshold d7-d0
3080 value[3] = 0; // Distorsion Threshold d11-d8
3081 value[4] = 43; // Max Distorsion d7-d0
3082 value[5] = 0; // Max Distorsion d8
3085 if (!USBVISION_IS_OPERATIONAL(usbvision))
3088 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
3090 USB_DIR_OUT | USB_TYPE_VENDOR |
3091 USB_RECIP_ENDPOINT, 0,
3092 (__u16) USBVISION_PCM_THR1, value, 6, HZ);
3095 printk(KERN_ERR "%sERROR=%d. USBVISION stopped - "
3096 "reconnect or reload driver.\n", proc, rc);
3106 * usbvision_set_input()
3108 * Set the input (saa711x, ...) size x y and other misc input params
3109 * I've no idea if this parameters are right
3112 static int usbvision_set_input(struct usb_usbvision *usbvision)
3114 static const char proc[] = "usbvision_set_input: ";
3116 unsigned char value[8];
3117 unsigned char dvi_yuv_value;
3119 if (!USBVISION_IS_OPERATIONAL(usbvision))
3122 /* Set input format expected from decoder*/
3123 if (usbvision_device_data[usbvision->DevModel].Vin_Reg1 >= 0) {
3124 value[0] = usbvision_device_data[usbvision->DevModel].Vin_Reg1 & 0xff;
3125 } else if(usbvision_device_data[usbvision->DevModel].Codec == CODEC_SAA7113) {
3126 /* SAA7113 uses 8 bit output */
3127 value[0] = USBVISION_8_422_SYNC;
3129 /* I'm sure only about d2-d0 [010] 16 bit 4:2:2 usin sync pulses
3130 * as that is how saa7111 is configured */
3131 value[0] = USBVISION_16_422_SYNC;
3132 /* | USBVISION_VSNC_POL | USBVISION_VCLK_POL);*/
3135 rc = usbvision_write_reg(usbvision, USBVISION_VIN_REG1, value[0]);
3137 printk(KERN_ERR "%sERROR=%d. USBVISION stopped - "
3138 "reconnect or reload driver.\n", proc, rc);
3143 if (usbvision->input.std & V4L2_STD_PAL) {
3145 value[1] = 0x02; //0x02C0 -> 704 Input video line length
3147 value[3] = 0x01; //0x0120 -> 288 Input video n. of lines
3149 value[5] = 0x00; //0x0060 -> 96 Input video h offset
3151 value[7] = 0x00; //0x0016 -> 22 Input video v offset
3152 } else if (usbvision->input.std & V4L2_STD_SECAM) {
3154 value[1] = 0x02; //0x02C0 -> 704 Input video line length
3156 value[3] = 0x01; //0x0120 -> 288 Input video n. of lines
3158 value[5] = 0x00; //0x0001 -> 01 Input video h offset
3160 value[7] = 0x00; //0x0001 -> 01 Input video v offset
3161 } else { /* V4L2_STD_NTSC */
3163 value[1] = 0x02; //0x02D0 -> 720 Input video line length
3165 value[3] = 0x00; //0x00F0 -> 240 Input video number of lines
3167 value[5] = 0x00; //0x0050 -> 80 Input video h offset
3169 value[7] = 0x00; //0x0010 -> 16 Input video v offset
3172 if (usbvision_device_data[usbvision->DevModel].X_Offset >= 0) {
3173 value[4]=usbvision_device_data[usbvision->DevModel].X_Offset & 0xff;
3174 value[5]=(usbvision_device_data[usbvision->DevModel].X_Offset & 0x0300) >> 8;
3177 if (usbvision_device_data[usbvision->DevModel].Y_Offset >= 0) {
3178 value[6]=usbvision_device_data[usbvision->DevModel].Y_Offset & 0xff;
3179 value[7]=(usbvision_device_data[usbvision->DevModel].Y_Offset & 0x0300) >> 8;
3182 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
3183 USBVISION_OP_CODE, /* USBVISION specific code */
3184 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, 0,
3185 (__u16) USBVISION_LXSIZE_I, value, 8, HZ);
3187 printk(KERN_ERR "%sERROR=%d. USBVISION stopped - "
3188 "reconnect or reload driver.\n", proc, rc);
3193 dvi_yuv_value = 0x00; /* U comes after V, Ya comes after U/V, Yb comes after Yb */
3195 if(usbvision_device_data[usbvision->DevModel].Dvi_yuv >= 0){
3196 dvi_yuv_value = usbvision_device_data[usbvision->DevModel].Dvi_yuv & 0xff;
3198 else if(usbvision_device_data[usbvision->DevModel].Codec == CODEC_SAA7113) {
3199 /* This changes as the fine sync control changes. Further investigation necessary */
3200 dvi_yuv_value = 0x06;
3203 return (usbvision_write_reg(usbvision, USBVISION_DVI_YUV, dvi_yuv_value));
3208 * usbvision_set_dram_settings()
3210 * Set the buffer address needed by the usbvision dram to operate
3211 * This values has been taken with usbsnoop.
3215 static int usbvision_set_dram_settings(struct usb_usbvision *usbvision)
3218 unsigned char value[8];
3220 if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
3229 // UR: 0x0E200-0x3FFFF = 204288 Words (1 Word = 2 Byte)
3230 // FDL: 0x00000-0x0E099 = 57498 Words
3231 // VDW: 0x0E3FF-0x3FFFF
3243 /* These are the values of the address of the video buffer,
3244 * they have to be loaded into the USBVISION_DRM_PRM1-8
3246 * Start address of video output buffer for read: drm_prm1-2 -> 0x00000
3247 * End address of video output buffer for read: drm_prm1-3 -> 0x1ffff
3248 * Start address of video frame delay buffer: drm_prm1-4 -> 0x20000
3249 * Only used in compressed mode
3250 * End address of video frame delay buffer: drm_prm1-5-6 -> 0x3ffff
3251 * Only used in compressed mode
3252 * Start address of video output buffer for write: drm_prm1-7 -> 0x00000
3253 * End address of video output buffer for write: drm_prm1-8 -> 0x1ffff
3256 if (!USBVISION_IS_OPERATIONAL(usbvision))
3259 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
3260 USBVISION_OP_CODE, /* USBVISION specific code */
3261 USB_DIR_OUT | USB_TYPE_VENDOR |
3262 USB_RECIP_ENDPOINT, 0,
3263 (__u16) USBVISION_DRM_PRM1, value, 8, HZ);
3266 err("%sERROR=%d", __FUNCTION__, rc);
3270 /* Restart the video buffer logic */
3271 if ((rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, USBVISION_RES_UR |
3272 USBVISION_RES_FDL | USBVISION_RES_VDW)) < 0)
3274 rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, 0x00);
3282 * Power on the device, enables suspend-resume logic
3283 * & reset the isoc End-Point
3287 static int usbvision_power_on(struct usb_usbvision *usbvision)
3291 PDEBUG(DBG_FUNC, "");
3293 usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN);
3294 usbvision_write_reg(usbvision, USBVISION_PWR_REG,
3295 USBVISION_SSPND_EN | USBVISION_RES2);
3296 usbvision_write_reg(usbvision, USBVISION_PWR_REG,
3297 USBVISION_SSPND_EN | USBVISION_PWR_VID);
3298 errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG,
3299 USBVISION_SSPND_EN | USBVISION_PWR_VID | USBVISION_RES2);
3301 usbvision->power = 1;
3303 PDEBUG(DBG_FUNC, "%s: errCode %d", (errCode<0)?"ERROR":"power is on", errCode);
3308 static void usbvision_powerOffTimer(unsigned long data)
3310 struct usb_usbvision *usbvision = (void *) data;
3312 PDEBUG(DBG_FUNC, "");
3313 del_timer(&usbvision->powerOffTimer);
3314 INIT_WORK(&usbvision->powerOffWork, call_usbvision_power_off, usbvision);
3315 (void) schedule_work(&usbvision->powerOffWork);
3321 * usbvision_begin_streaming()
3322 * Sure you have to put bit 7 to 0, if not incoming frames are droped, but no
3323 * idea about the rest
3325 static int usbvision_begin_streaming(struct usb_usbvision *usbvision)
3329 if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
3330 usbvision_init_compression(usbvision);
3332 errCode = usbvision_write_reg(usbvision, USBVISION_VIN_REG2, USBVISION_NOHVALID |
3333 usbvision->Vin_Reg2_Preset);
3338 * usbvision_restart_isoc()
3339 * Not sure yet if touching here PWR_REG make loose the config
3342 static int usbvision_restart_isoc(struct usb_usbvision *usbvision)
3348 usbvision_write_reg(usbvision, USBVISION_PWR_REG,
3349 USBVISION_SSPND_EN | USBVISION_PWR_VID)) < 0)
3353 usbvision_write_reg(usbvision, USBVISION_PWR_REG,
3354 USBVISION_SSPND_EN | USBVISION_PWR_VID |
3355 USBVISION_RES2)) < 0)
3359 usbvision_write_reg(usbvision, USBVISION_VIN_REG2,
3360 USBVISION_KEEP_BLANK | USBVISION_NOHVALID |
3361 usbvision->Vin_Reg2_Preset)) < 0) return ret;
3363 /* TODO: schedule timeout */
3364 while ((usbvision_read_reg(usbvision, USBVISION_STATUS_REG) && 0x01) != 1);
3369 static int usbvision_audio_on(struct usb_usbvision *usbvision)
3371 if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, usbvision->AudioChannel) < 0) {
3372 printk(KERN_ERR "usbvision_audio_on: can't wirte reg\n");
3375 DEBUG(printk(KERN_DEBUG "usbvision_audio_on: channel %d\n", usbvision->AudioChannel));
3376 usbvision->AudioMute = 0;
3380 static int usbvision_audio_mute(struct usb_usbvision *usbvision)
3382 if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, 0x03) < 0) {
3383 printk(KERN_ERR "usbvision_audio_mute: can't wirte reg\n");
3386 DEBUG(printk(KERN_DEBUG "usbvision_audio_mute: audio mute\n"));
3387 usbvision->AudioMute = 1;
3391 static int usbvision_audio_off(struct usb_usbvision *usbvision)
3393 if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, USBVISION_AUDIO_MUTE) < 0) {
3394 printk(KERN_ERR "usbvision_audio_off: can't wirte reg\n");
3397 DEBUG(printk(KERN_DEBUG "usbvision_audio_off: audio off\n"));
3398 usbvision->AudioMute = 0;
3399 usbvision->AudioChannel = USBVISION_AUDIO_MUTE;
3403 static int usbvision_set_audio(struct usb_usbvision *usbvision, int AudioChannel)
3405 if (!usbvision->AudioMute) {
3406 if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, AudioChannel) < 0) {
3407 printk(KERN_ERR "usbvision_set_audio: can't write iopin register for audio switching\n");
3411 DEBUG(printk(KERN_DEBUG "usbvision_set_audio: channel %d\n", AudioChannel));
3412 usbvision->AudioChannel = AudioChannel;
3416 static int usbvision_setup(struct usb_usbvision *usbvision)
3418 usbvision_set_video_format(usbvision, isocMode);
3419 usbvision_set_dram_settings(usbvision);
3420 usbvision_set_compress_params(usbvision);
3421 usbvision_set_input(usbvision);
3422 usbvision_set_output(usbvision, MAX_USB_WIDTH, MAX_USB_HEIGHT);
3423 usbvision_restart_isoc(usbvision);
3426 return USBVISION_IS_OPERATIONAL(usbvision);
3431 * usbvision_init_isoc()
3434 static int usbvision_init_isoc(struct usb_usbvision *usbvision)
3436 struct usb_device *dev = usbvision->dev;
3437 int bufIdx, errCode, regValue;
3439 if (!USBVISION_IS_OPERATIONAL(usbvision))
3442 usbvision->curFrameNum = -1;
3443 scratch_reset(usbvision);
3445 /* Alternate interface 1 is is the biggest frame size */
3446 errCode = usb_set_interface(dev, usbvision->iface, usbvision->ifaceAltActive);
3448 usbvision->last_error = errCode;
3452 regValue = (16 - usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F;
3453 usbvision->isocPacketSize = (regValue == 0) ? 0 : (regValue * 64) - 1;
3454 PDEBUG(DBG_ISOC, "ISO Packet Length:%d", usbvision->isocPacketSize);
3456 usbvision->usb_bandwidth = regValue >> 1;
3457 PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", usbvision->usb_bandwidth);
3461 /* We double buffer the Iso lists */
3463 for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) {
3467 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
3468 urb = usb_alloc_urb(USBVISION_URB_FRAMES);
3470 urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
3473 err("%s: usb_alloc_urb() failed", __FUNCTION__);
3476 usbvision->sbuf[bufIdx].urb = urb;
3478 urb->context = usbvision;
3479 urb->pipe = usb_rcvisocpipe(dev, usbvision->video_endp);
3480 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
3481 urb->transfer_flags = USB_ISO_ASAP;
3483 urb->transfer_flags = URB_ISO_ASAP;
3486 urb->transfer_buffer = usbvision->sbuf[bufIdx].data;
3487 urb->complete = usbvision_isocIrq;
3488 urb->number_of_packets = USBVISION_URB_FRAMES;
3489 urb->transfer_buffer_length =
3490 usbvision->isocPacketSize * USBVISION_URB_FRAMES;
3491 for (j = k = 0; j < USBVISION_URB_FRAMES; j++,
3492 k += usbvision->isocPacketSize) {
3493 urb->iso_frame_desc[j].offset = k;
3494 urb->iso_frame_desc[j].length = usbvision->isocPacketSize;
3499 /* Submit all URBs */
3500 for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) {
3501 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
3502 errCode = usb_submit_urb(usbvision->sbuf[bufIdx].urb);
3504 errCode = usb_submit_urb(usbvision->sbuf[bufIdx].urb, GFP_KERNEL);
3507 err("%s: usb_submit_urb(%d) failed: error %d", __FUNCTION__, bufIdx, errCode);
3511 usbvision->streaming = 1;
3512 PDEBUG(DBG_ISOC, "%s: streaming=1 usbvision->video_endp=$%02x", __FUNCTION__, usbvision->video_endp);
3517 * usbvision_stop_isoc()
3519 * This procedure stops streaming and deallocates URBs. Then it
3520 * activates zero-bandwidth alt. setting of the video interface.
3523 static void usbvision_stop_isoc(struct usb_usbvision *usbvision)
3525 int bufIdx, errCode, regValue;
3527 if (!usbvision->streaming || (usbvision->dev == NULL))
3530 /* Unschedule all of the iso td's */
3531 for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) {
3532 usb_kill_urb(usbvision->sbuf[bufIdx].urb);
3533 usb_free_urb(usbvision->sbuf[bufIdx].urb);
3534 usbvision->sbuf[bufIdx].urb = NULL;
3538 PDEBUG(DBG_ISOC, "%s: streaming=0\n", __FUNCTION__);
3539 usbvision->streaming = 0;
3542 if (!usbvision->remove_pending) {
3544 /* Set packet size to 0 */
3545 errCode = usb_set_interface(usbvision->dev, usbvision->iface,
3546 usbvision->ifaceAltInactive);
3548 err("%s: usb_set_interface() failed: error %d", __FUNCTION__, errCode);
3549 usbvision->last_error = errCode;
3551 regValue = (16 - usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F;
3552 usbvision->isocPacketSize = (regValue == 0) ? 0 : (regValue * 64) - 1;
3553 PDEBUG(DBG_ISOC, "ISO Packet Length:%d", usbvision->isocPacketSize);
3555 usbvision->usb_bandwidth = regValue >> 1;
3556 PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", usbvision->usb_bandwidth);
3561 * usbvision_new_frame()
3564 static int usbvision_new_frame(struct usb_usbvision *usbvision, int framenum)
3566 struct usbvision_frame *frame;
3567 int n; //byhec , width, height;
3569 /* If we're not grabbing a frame right now and the other frame is */
3570 /* ready to be grabbed into, then use it instead */
3571 if (usbvision->curFrameNum != -1)
3574 n = (framenum - 1 + USBVISION_NUMFRAMES) % USBVISION_NUMFRAMES;
3575 if (usbvision->frame[n].grabstate == FrameState_Ready)
3578 frame = &usbvision->frame[framenum];
3580 frame->grabstate = FrameState_Grabbing;
3581 frame->scanstate = ScanState_Scanning;
3582 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
3583 usbvision->curFrameNum = framenum;
3586 * Normally we would want to copy previous frame into the current one
3587 * before we even start filling it with data; this allows us to stop
3588 * filling at any moment; top portion of the frame will be new and
3589 * bottom portion will stay as it was in previous frame. If we don't
3590 * do that then missing chunks of video stream will result in flickering
3591 * portions of old data whatever it was before.
3593 * If we choose not to copy previous frame (to, for example, save few
3594 * bus cycles - the frame can be pretty large!) then we have an option
3595 * to clear the frame before using. If we experience losses in this
3596 * mode then missing picture will be black (flickering).
3598 * Finally, if user chooses not to clean the current frame before
3599 * filling it with data then the old data will be visible if we fail
3600 * to refill entire frame with new data.
3602 if (!(flags & FLAGS_SEPARATE_FRAMES)) {
3603 /* This copies previous frame into this one to mask losses */
3604 memmove(frame->data, usbvision->frame[1 - framenum].data,
3607 if (flags & FLAGS_CLEAN_FRAMES) {
3608 /*This provides a "clean" frame but slows things down */
3609 memset(frame->data, 0, MAX_FRAME_SIZE);
3615 static int usbvision_muxsel(struct usb_usbvision *usbvision, int channel, int norm)
3618 int audio[]= {1, 0, 0, 0};
3619 struct v4l2_routing route;
3620 //channel 0 is TV with audiochannel 1 (tuner mono)
3621 //channel 1 is Composite with audio channel 0 (line in)
3622 //channel 2 is S-Video with audio channel 0 (line in)
3623 //channel 3 is additional video inputs to the device with audio channel 0 (line in)
3625 RESTRICT_TO_RANGE(channel, 0, usbvision->video_inputs);
3626 /* set the new video norm */
3627 if (usbvision->input.std != norm) {
3628 v4l2_std_id video_command = norm;
3630 route.input = SAA7115_COMPOSITE1;
3631 call_i2c_clients(usbvision, VIDIOC_INT_S_VIDEO_ROUTING,&route);
3632 call_i2c_clients(usbvision, VIDIOC_S_STD, &video_command);
3633 usbvision->input.std = norm;
3634 call_i2c_clients(usbvision, VIDIOC_S_INPUT, &usbvision->input.index); //set norm in tuner
3637 // set the new channel
3638 // Regular USB TV Tuners -> channel: 0 = Television, 1 = Composite, 2 = S-Video
3639 // Four video input devices -> channel: 0 = Chan White, 1 = Chan Green, 2 = Chan Yellow, 3 = Chan Red
3641 switch (usbvision_device_data[usbvision->DevModel].Codec) {
3643 if (SwitchSVideoInput) { // To handle problems with S-Video Input for some devices. Use SwitchSVideoInput parameter when loading the module.
3649 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
3650 mode[0] = 0; mode[1] = 2; mode[3] = 3; // Special for four input devices
3653 mode[0] = 0; mode[1] = 2; //modes for regular saa7113 devices
3657 mode[0] = 0; mode[1] = 1; mode[2] = 7; //modes for saa7111
3660 mode[0] = 0; mode[1] = 1; mode[2] = 7; //default modes
3662 route.input = mode[channel];
3663 call_i2c_clients(usbvision, VIDIOC_INT_S_VIDEO_ROUTING,&route);
3664 usbvision->channel = channel;
3665 usbvision_set_audio(usbvision, audio[channel]);
3673 * This is part of Video 4 Linux API. The driver can be opened by one
3674 * client only (checks internal counter 'usbvision->user'). The procedure
3675 * then allocates buffers needed for video processing.
3678 static int usbvision_v4l2_open(struct inode *inode, struct file *file)
3680 struct video_device *dev = video_devdata(file);
3681 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
3682 const int sb_size = USBVISION_URB_FRAMES * USBVISION_MAX_ISOC_PACKET_SIZE;
3685 PDEBUG(DBG_IO, "open");
3688 if (timer_pending(&usbvision->powerOffTimer)) {
3689 del_timer(&usbvision->powerOffTimer);
3692 if (usbvision->user)
3695 /* Clean pointers so we know if we allocated something */
3696 for (i = 0; i < USBVISION_NUMSBUF; i++)
3697 usbvision->sbuf[i].data = NULL;
3699 /* Allocate memory for the frame buffers */
3700 usbvision->max_frame_size = MAX_FRAME_SIZE;
3701 usbvision->fbuf_size = USBVISION_NUMFRAMES * usbvision->max_frame_size;
3702 usbvision->fbuf = usbvision_rvmalloc(usbvision->fbuf_size);
3703 usbvision->scratch = vmalloc(scratch_buf_size);
3704 scratch_reset(usbvision);
3705 if ((usbvision->fbuf == NULL) || (usbvision->scratch == NULL)) {
3706 err("%s: unable to allocate %d bytes for fbuf and %d bytes for scratch",
3707 __FUNCTION__, usbvision->fbuf_size, scratch_buf_size);
3711 /* Allocate all buffers */
3712 for (i = 0; i < USBVISION_NUMFRAMES; i++) {
3713 usbvision->frame[i].grabstate = FrameState_Unused;
3714 usbvision->frame[i].data = usbvision->fbuf +
3717 * Set default sizes in case IOCTL
3719 * is not used (using read() instead).
3721 usbvision->stretch_width = 1;
3722 usbvision->stretch_height = 1;
3723 usbvision->frame[i].width = usbvision->curwidth;
3724 usbvision->frame[i].height = usbvision->curheight;
3725 usbvision->frame[i].bytes_read = 0;
3727 if (dga) { //set default for DGA
3728 usbvision->overlay_frame.grabstate = FrameState_Unused;
3729 usbvision->overlay_frame.scanstate = ScanState_Scanning;
3730 usbvision->overlay_frame.data = NULL;
3731 usbvision->overlay_frame.width = usbvision->curwidth;
3732 usbvision->overlay_frame.height = usbvision->curheight;
3733 usbvision->overlay_frame.bytes_read = 0;
3735 for (i = 0; i < USBVISION_NUMSBUF; i++) {
3736 usbvision->sbuf[i].data = kzalloc(sb_size, GFP_KERNEL);
3737 if (usbvision->sbuf[i].data == NULL) {
3738 err("%s: unable to allocate %d bytes for sbuf", __FUNCTION__, sb_size);
3744 if ((!errCode) && (usbvision->isocMode==ISOC_MODE_COMPRESS)) {
3745 int IFB_size = MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * 3 / 2;
3746 usbvision->IntraFrameBuffer = vmalloc(IFB_size);
3747 if (usbvision->IntraFrameBuffer == NULL) {
3748 err("%s: unable to allocate %d for compr. frame buffer", __FUNCTION__, IFB_size);
3754 /* Have to free all that memory */
3755 if (usbvision->fbuf != NULL) {
3756 usbvision_rvfree(usbvision->fbuf, usbvision->fbuf_size);
3757 usbvision->fbuf = NULL;
3759 if (usbvision->scratch != NULL) {
3760 vfree(usbvision->scratch);
3761 usbvision->scratch = NULL;
3763 for (i = 0; i < USBVISION_NUMSBUF; i++) {
3764 if (usbvision->sbuf[i].data != NULL) {
3765 kfree(usbvision->sbuf[i].data);
3766 usbvision->sbuf[i].data = NULL;
3769 if (usbvision->IntraFrameBuffer != NULL) {
3770 vfree(usbvision->IntraFrameBuffer);
3771 usbvision->IntraFrameBuffer = NULL;
3776 /* If so far no errors then we shall start the camera */
3778 down(&usbvision->lock);
3779 if (usbvision->power == 0) {
3780 usbvision_power_on(usbvision);
3781 usbvision_init_i2c(usbvision);
3784 /* Send init sequence only once, it's large! */
3785 if (!usbvision->initialized) {
3787 setup_ok = usbvision_setup(usbvision);
3789 usbvision->initialized = 1;
3795 usbvision_begin_streaming(usbvision);
3796 errCode = usbvision_init_isoc(usbvision);
3800 if (PowerOnAtOpen) {
3801 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
3802 usbvision_power_off(usbvision);
3803 usbvision->initialized = 0;
3806 up(&usbvision->lock);
3812 PDEBUG(DBG_IO, "success");
3817 * usbvision_v4l2_close()
3819 * This is part of Video 4 Linux API. The procedure
3820 * stops streaming and deallocates all buffers that were earlier
3821 * allocated in usbvision_v4l2_open().
3824 static int usbvision_v4l2_close(struct inode *inode, struct file *file)
3826 struct video_device *dev = video_devdata(file);
3827 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
3830 PDEBUG(DBG_IO, "close");
3831 down(&usbvision->lock);
3833 usbvision_audio_off(usbvision);
3834 usbvision_restart_isoc(usbvision);
3835 usbvision_stop_isoc(usbvision);
3837 if (usbvision->IntraFrameBuffer != NULL) {
3838 vfree(usbvision->IntraFrameBuffer);
3839 usbvision->IntraFrameBuffer = NULL;
3842 usbvision_rvfree(usbvision->fbuf, usbvision->fbuf_size);
3843 vfree(usbvision->scratch);
3844 for (i = 0; i < USBVISION_NUMSBUF; i++)
3845 kfree(usbvision->sbuf[i].data);
3849 if (PowerOnAtOpen) {
3850 mod_timer(&usbvision->powerOffTimer, jiffies + USBVISION_POWEROFF_TIME);
3851 usbvision->initialized = 0;
3854 up(&usbvision->lock);
3856 if (usbvision->remove_pending) {
3857 info("%s: Final disconnect", __FUNCTION__);
3858 usbvision_release(usbvision);
3861 PDEBUG(DBG_IO, "success");
3871 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
3874 static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
3875 unsigned int cmd, void *arg)
3877 struct video_device *dev = video_devdata(file);
3878 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
3880 if (!USBVISION_IS_OPERATIONAL(usbvision))
3886 struct usbvision_reg *usbvision_reg = arg;
3889 errCode = usbvision_write_reg(usbvision, usbvision_reg->addr, usbvision_reg->value);
3892 err("%s: UVIOCSREG failed: error %d", __FUNCTION__, errCode);
3895 PDEBUG(DBG_IOCTL, "UVIOCSREG addr=0x%02X, value=0x%02X",
3896 usbvision_reg->addr, usbvision_reg->value);
3903 struct usbvision_reg *usbvision_reg = arg;
3906 errCode = usbvision_read_reg(usbvision, usbvision_reg->addr);
3909 err("%s: UVIOCGREG failed: error %d", __FUNCTION__, errCode);
3912 usbvision_reg->value=(unsigned char)errCode;
3913 PDEBUG(DBG_IOCTL, "UVIOCGREG addr=0x%02X, value=0x%02X",
3914 usbvision_reg->addr, usbvision_reg->value);
3915 errCode = 0; // No error
3919 case VIDIOC_QUERYCAP:
3921 struct v4l2_capability *vc=arg;
3922 *vc = usbvision->vcap;
3923 PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP");
3926 case VIDIOC_ENUMINPUT:
3928 struct v4l2_input *vi = arg;
3931 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
3933 if (usbvision->have_tuner) {
3937 chan = vi->index + 1; //skip Television string
3941 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
3942 strcpy(vi->name, "White Video Input");
3945 strcpy(vi->name, "Television");
3946 vi->type = V4L2_INPUT_TYPE_TUNER;
3949 vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM;
3953 vi->type = V4L2_INPUT_TYPE_CAMERA;
3954 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
3955 strcpy(vi->name, "Green Video Input");
3958 strcpy(vi->name, "Composite Video Input");
3960 vi->std = V4L2_STD_PAL;
3963 vi->type = V4L2_INPUT_TYPE_CAMERA;
3964 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
3965 strcpy(vi->name, "Yellow Video Input");
3968 strcpy(vi->name, "S-Video Input");
3970 vi->std = V4L2_STD_PAL;
3973 vi->type = V4L2_INPUT_TYPE_CAMERA;
3974 strcpy(vi->name, "Red Video Input");
3975 vi->std = V4L2_STD_PAL;
3978 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);
3981 case VIDIOC_ENUMSTD:
3983 struct v4l2_standard *vs = arg;
3986 vs->id = V4L2_STD_PAL;
3987 strcpy(vs->name,"PAL");
3988 vs->frameperiod.numerator = 1;
3989 vs->frameperiod.denominator = 25;
3990 vs->framelines = 625;
3993 vs->id = V4L2_STD_NTSC;
3994 strcpy(vs->name,"NTSC");
3995 vs->frameperiod.numerator = 1001;
3996 vs->frameperiod.denominator = 30000;
3997 vs->framelines = 525;
4000 vs->id = V4L2_STD_SECAM;
4001 strcpy(vs->name,"SECAM");
4002 vs->frameperiod.numerator = 1;
4003 vs->frameperiod.denominator = 25;
4004 vs->framelines = 625;
4011 case VIDIOC_G_INPUT:
4014 *input = usbvision->input.index;
4017 case VIDIOC_S_INPUT:
4020 if ((*input >= usbvision->video_inputs) || (*input < 0) )
4022 usbvision->input.index = *input;
4024 down(&usbvision->lock);
4025 usbvision_muxsel(usbvision, usbvision->input.index, usbvision->input.std);
4026 usbvision_set_input(usbvision);
4027 usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight);
4028 up(&usbvision->lock);
4033 v4l2_std_id *std = arg;
4034 *std = usbvision->input.std;
4035 PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%x", (unsigned)*std);
4040 v4l2_std_id *std = arg;
4042 down(&usbvision->lock);
4043 usbvision_muxsel(usbvision, usbvision->input.index, *std);
4044 usbvision_set_input(usbvision);
4045 usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight);
4046 up(&usbvision->lock);
4048 usbvision->input.std = *std;
4049 PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%x", (unsigned)*std);
4052 case VIDIOC_G_TUNER:
4054 struct v4l2_tuner *vt = arg;
4055 struct v4l2_tuner status;
4057 if (!usbvision->have_tuner || vt->index) // Only tuner 0
4059 strcpy(vt->name, "Television");
4060 vt->type = V4L2_TUNER_ANALOG_TV;
4061 vt->capability = V4L2_TUNER_CAP_NORM;
4064 vt->audmode = V4L2_TUNER_MODE_MONO;
4065 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
4066 call_i2c_clients(usbvision,VIDIOC_G_TUNER,&status);
4067 vt->signal = status.signal;
4069 PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER");
4072 case VIDIOC_S_TUNER:
4074 struct v4l2_tuner *vt = arg;
4076 // Only no or one tuner for now
4077 if (!usbvision->have_tuner || vt->index)
4079 // FIXME vt->audmode Radio mode (STEREO/MONO/...)
4080 // vt->reserved Radio freq
4081 // usbvision_muxsel(usbvision, vt->index, vt->mode);
4082 PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER");
4085 case VIDIOC_G_FREQUENCY:
4087 struct v4l2_frequency *freq = arg;
4088 freq->tuner = 0; // Only one tuner
4089 freq->type = V4L2_TUNER_ANALOG_TV;
4090 freq->frequency = usbvision->freq;
4091 PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
4094 case VIDIOC_S_FREQUENCY:
4096 struct v4l2_frequency *freq = arg;
4097 usbvision->freq = freq->frequency;
4098 call_i2c_clients(usbvision, cmd, freq);
4099 PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
4102 case VIDIOC_G_AUDIO:
4104 struct v4l2_audio *v = arg;
4105 memset(v,0, sizeof(v));
4106 strcpy(v->name, "TV");
4107 PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO");
4108 // FIXME: no more processings ???
4111 case VIDIOC_S_AUDIO:
4113 struct v4l2_audio *v = arg;
4117 PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO");
4118 // FIXME: void function ???
4121 case VIDIOC_QUERYCTRL:
4123 struct v4l2_queryctrl *qc = arg;
4125 case V4L2_CID_BRIGHTNESS:
4127 case V4L2_CID_SATURATION:
4128 case V4L2_CID_CONTRAST:
4129 case V4L2_CID_AUDIO_VOLUME:
4130 case V4L2_CID_AUDIO_MUTE:
4131 return v4l2_ctrl_query_fill_std(qc);
4140 struct v4l2_control *ctrl = arg;
4143 case V4L2_CID_BRIGHTNESS:
4144 ctrl->value = usbvision->brightness;
4146 case V4L2_CID_CONTRAST:
4147 ctrl->value = usbvision->contrast;
4149 case V4L2_CID_SATURATION:
4150 ctrl->value = usbvision->saturation;
4153 ctrl->value = usbvision->hue;
4155 case V4L2_CID_AUDIO_VOLUME:
4156 /* ctrl->value = usbvision->volume; */
4158 case V4L2_CID_AUDIO_MUTE:
4159 ctrl->value = usbvision->AudioMute;
4164 PDEBUG(DBG_IOCTL, "VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
4169 struct v4l2_control *ctrl = arg;
4170 PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value);
4171 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
4174 case VIDIOC_REQBUFS:
4176 struct v4l2_requestbuffers *vr = arg;
4177 // FIXME : normally we allocate the requested number of buffers.
4178 // this driver allocates statically the buffers.
4180 if(vr->memory != V4L2_MEMORY_MMAP)
4184 case VIDIOC_QUERYBUF:
4186 struct v4l2_buffer *vb = arg;
4187 struct usbvision_frame *frame;
4189 // FIXME : works only on VIDEO_CAPTURE MODE, MMAP.
4190 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
4197 frame = &usbvision->frame[vb->index];
4198 if(frame->grabstate == FrameState_Grabbing)
4199 vb->flags |= V4L2_BUF_FLAG_QUEUED;
4200 if(frame->grabstate >= FrameState_Done)
4201 vb->flags |= V4L2_BUF_FLAG_DONE;
4202 if(frame->grabstate == FrameState_Unused)
4203 vb->flags |= V4L2_BUF_FLAG_MAPPED;
4204 vb->memory = V4L2_MEMORY_MMAP;
4205 if(vb->index == 0) {
4209 vb->m.offset = MAX_FRAME_SIZE;
4211 vb->length = MAX_FRAME_SIZE;
4212 vb->timestamp = usbvision->frame[vb->index].timestamp;
4213 vb->sequence = usbvision->frame_num;
4216 case VIDIOC_QBUF: // VIDIOCMCAPTURE + VIDIOCSYNC
4218 struct v4l2_buffer *vb = arg;
4219 struct usbvision_frame *frame;
4221 // FIXME : works only on VIDEO_CAPTURE MODE, MMAP.
4222 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
4229 frame = &usbvision->frame[vb->index];
4231 if (frame->grabstate == FrameState_Grabbing) {
4235 usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight);
4237 /* Mark it as ready */
4238 frame->grabstate = FrameState_Ready;
4239 vb->flags &= ~V4L2_BUF_FLAG_DONE;
4241 /* set v4l2_format index */
4242 frame->v4l2_format = usbvision->palette;
4243 PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame=%d",vb->index);
4245 return usbvision_new_frame(usbvision, vb->index);
4249 struct v4l2_buffer *vb = arg;
4252 DECLARE_WAITQUEUE(wait, current);
4253 // FIXME : not the proper way to get the last filled frame
4255 if(usbvision->curFrameNum != -1) vb->index=usbvision->curFrameNum;
4257 if(usbvision->frame[1].grabstate >= FrameState_Done)
4259 else if(usbvision->frame[0].grabstate >= FrameState_Done)
4261 // If no FRAME_DONE, look for a FRAME_GRABBING state.
4262 // See if a frame is in process (grabbing), then use it.
4263 if (vb->index == -1) {
4264 if (usbvision->frame[1].grabstate == FrameState_Grabbing)
4266 else if (usbvision->frame[0].grabstate == FrameState_Grabbing)
4270 if (vb->index == -1)
4273 PDEBUG(DBG_IOCTL, "VIDIOC_DQBUF frame=%d, grabstate=%d, curframeNum=%d",
4274 vb->index, usbvision->frame[vb->index].grabstate,usbvision->curFrameNum);
4276 switch (usbvision->frame[vb->index].grabstate) {
4277 case FrameState_Unused:
4280 case FrameState_Grabbing:
4281 add_wait_queue(&usbvision->frame[vb->index].wq, &wait);
4282 current->state = TASK_INTERRUPTIBLE;
4283 while (usbvision->frame[vb->index].grabstate == FrameState_Grabbing) {
4285 if (signal_pending(current)) {
4286 remove_wait_queue(&usbvision->frame[vb->index].wq, &wait);
4287 current->state = TASK_RUNNING;
4291 remove_wait_queue(&usbvision->frame[vb->index].wq, &wait);
4292 current->state = TASK_RUNNING;
4293 case FrameState_Ready:
4294 case FrameState_Error:
4295 case FrameState_Done:
4296 errCode = (usbvision->frame[vb->index].grabstate == FrameState_Error) ? -EIO : 0;
4297 vb->memory = V4L2_MEMORY_MMAP;
4298 vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE;
4299 vb->field = V4L2_FIELD_NONE;
4300 vb->sequence = usbvision->frame[vb->index].sequence;
4301 usbvision->frame[vb->index].grabstate = FrameState_Unused;
4305 usbvision->frame[vb->index].grabstate = FrameState_Unused;
4308 case VIDIOC_STREAMON:
4310 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
4311 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
4314 case VIDIOC_STREAMOFF:
4316 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
4317 down(&usbvision->lock);
4318 // Stop all video streamings
4319 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
4320 usbvision->frame_num = -1;
4321 usbvision->frame[0].grabstate = FrameState_Unused;
4322 usbvision->frame[1].grabstate = FrameState_Unused;
4323 up(&usbvision->lock);
4328 struct v4l2_framebuffer *vb = arg;
4331 *vb = usbvision->vid_buf;
4334 memset(vb, 0, sizeof(vb)); //dga not supported, not used
4336 PDEBUG(DBG_IOCTL, "VIDIOC_G_FBUF base=%p, width=%d, height=%d, pixelformat=%d, bpl=%d",
4337 vb->base, vb->fmt.width, vb->fmt.height, vb->fmt.pixelformat,vb->fmt.bytesperline);
4342 struct v4l2_framebuffer *vb = arg;
4349 if(!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_ADMIN)) {
4353 PDEBUG(DBG_IOCTL, "VIDIOC_S_FBUF base=%p, width=%d, height=%d, pixelformat=%d, bpl=%d",
4354 vb->base, vb->fmt.width, vb->fmt.height, vb->fmt.pixelformat,vb->fmt.bytesperline);
4356 for (formatIdx=0; formatIdx <= USBVISION_SUPPORTED_PALETTES; formatIdx++) {
4357 if (formatIdx == USBVISION_SUPPORTED_PALETTES) {
4358 return -EINVAL; // no matching video_format
4360 if ((vb->fmt.pixelformat == usbvision_v4l2_format[formatIdx].format) &&
4361 (usbvision_v4l2_format[formatIdx].supported)) {
4362 break; //found matching video_format
4366 if (vb->fmt.bytesperline<1) {
4369 if (usbvision->overlay) {
4372 down(&usbvision->lock);
4373 if (usbvision->overlay_base) {
4374 iounmap(usbvision->overlay_base);
4375 usbvision->vid_buf_valid = 0;
4377 usbvision->overlay_base = ioremap((ulong)vb->base, vb->fmt.height * vb->fmt.bytesperline);
4378 if (usbvision->overlay_base) {
4379 usbvision->vid_buf_valid = 1;
4381 usbvision->vid_buf = *vb;
4382 usbvision->overlay_frame.v4l2_format = usbvision_v4l2_format[formatIdx];
4383 up(&usbvision->lock);
4386 case VIDIOC_ENUM_FMT:
4388 struct v4l2_fmtdesc *vfd = arg;
4390 (vfd->type == V4L2_BUF_TYPE_VIDEO_OVERLAY) &&
4391 (usbvision->palette.format != V4L2_PIX_FMT_YVU420) &&
4392 (usbvision->palette.format != V4L2_PIX_FMT_YUV422P) ) {
4395 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
4399 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
4400 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
4405 struct v4l2_format *vf = arg;
4408 (vf->type == V4L2_BUF_TYPE_VIDEO_OVERLAY) &&
4409 (usbvision->palette.format != V4L2_PIX_FMT_YVU420) &&
4410 (usbvision->palette.format != V4L2_PIX_FMT_YUV422P) ) {
4413 down(&usbvision->lock);
4414 *vf = usbvision->vid_win;
4415 up(&usbvision->lock);
4416 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT x=%d, y=%d, w=%d, h=%d, chroma=%x, clips=%d",
4417 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);
4422 struct v4l2_format *vf = arg;
4423 struct v4l2_clip *vc=NULL;
4427 (vf->type == V4L2_BUF_TYPE_VIDEO_OVERLAY) &&
4428 (usbvision->palette.format != V4L2_PIX_FMT_YVU420) &&
4429 (usbvision->palette.format != V4L2_PIX_FMT_YUV422P) ) {
4432 if(vf->type == V4L2_BUF_TYPE_VIDEO_OVERLAY) {
4433 if (vf->fmt.win.clipcount>256) {
4434 return -EDOM; /* Too many clips! */
4437 vc = vmalloc(sizeof(struct v4l2_clip)*(vf->fmt.win.clipcount+4));
4441 if (vf->fmt.win.clipcount && copy_from_user(vc,vf->fmt.win.clips,sizeof(struct v4l2_clip)*vf->fmt.win.clipcount)) {
4444 on = usbvision->overlay; // Save overlay state
4446 usbvision_cap(usbvision, 0);
4449 // strange, it seems xawtv sometimes calls us with 0
4450 // width and/or height. Ignore these values
4451 if (vf->fmt.win.w.left == 0) {
4452 vf->fmt.win.w.left = usbvision->vid_win.fmt.win.w.left;
4454 if (vf->fmt.win.w.top == 0) {
4455 vf->fmt.win.w.top = usbvision->vid_win.fmt.win.w.top;
4458 // by now we are committed to the new data...
4459 down(&usbvision->lock);
4460 RESTRICT_TO_RANGE(vf->fmt.win.w.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
4461 RESTRICT_TO_RANGE(vf->fmt.win.w.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
4462 usbvision->vid_win = *vf;
4463 usbvision->overlay_frame.width = vf->fmt.win.w.width;
4464 usbvision->overlay_frame.height = vf->fmt.win.w.height;
4465 usbvision_set_output(usbvision, vf->fmt.win.w.width, vf->fmt.win.w.height);
4466 up(&usbvision->lock);
4468 // Impose display clips
4469 if (vf->fmt.win.w.left+vf->fmt.win.w.width > (unsigned int)usbvision->vid_buf.fmt.width) {
4470 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);
4472 if (vf->fmt.win.w.top+vf->fmt.win.w.height > (unsigned int)usbvision->vid_buf.fmt.height) {
4473 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);
4476 // built the requested clipping zones
4477 usbvision_built_overlay(usbvision, vf->fmt.win.clipcount, vc);
4480 // restore overlay state
4482 usbvision_cap(usbvision, 1);
4484 usbvision->vid_win_valid = 1;
4485 PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT overlay x=%d, y=%d, w=%d, h=%d, chroma=%x, clips=%d",
4486 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);
4489 /* Find requested format in available ones */
4490 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
4491 if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) {
4492 usbvision->palette = usbvision_v4l2_format[formatIdx];
4497 if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
4500 usbvision->vid_win.fmt.pix.pixelformat = vf->fmt.pix.pixelformat;
4501 usbvision->vid_win.fmt.pix.width = vf->fmt.pix.width; //Image width in pixels.
4502 usbvision->vid_win.fmt.pix.height = vf->fmt.pix.height; // Image height in pixels.
4504 // by now we are committed to the new data...
4505 down(&usbvision->lock);
4506 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
4507 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
4508 usbvision->vid_win = *vf;
4509 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
4510 up(&usbvision->lock);
4512 usbvision->vid_win_valid = 1;
4513 PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, ",
4514 vf->fmt.pix.width, vf->fmt.pix.height);
4518 case VIDIOC_OVERLAY:
4523 (usbvision->palette.format != V4L2_PIX_FMT_YVU420) &&
4524 (usbvision->palette.format != V4L2_PIX_FMT_YUV422P) ) {
4525 PDEBUG(DBG_IOCTL, "VIDIOC_OVERLAY DGA disabled");
4530 usbvision_cap(usbvision, 0);
4533 // are VIDIOCSFBUF and VIDIOCSWIN done?
4534 if ((usbvision->vid_buf_valid == 0) || (usbvision->vid_win_valid == 0)) {
4535 PDEBUG(DBG_IOCTL, "VIDIOC_OVERLAY vid_buf_valid %d; vid_win_valid %d",
4536 usbvision->vid_buf_valid, usbvision->vid_win_valid);
4539 usbvision_cap(usbvision, 1);
4541 PDEBUG(DBG_IOCTL, "VIDIOC_OVERLAY %s", (*v)?"on":"off");
4545 return -ENOIOCTLCMD;
4550 static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file,
4551 unsigned int cmd, unsigned long arg)
4553 return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl);
4557 static ssize_t usbvision_v4l2_read(struct file *file, char *buf,
4558 size_t count, loff_t *ppos)
4560 struct video_device *dev = video_devdata(file);
4561 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
4562 int noblock = file->f_flags & O_NONBLOCK;
4566 struct usbvision_frame *frame;
4568 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock);
4570 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
4573 down(&usbvision->lock);
4574 //code for testing compression
4575 if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
4576 usbvision->frame[0].v4l2_format = usbvision_v4l2_format[0]; //V4L2_PIX_FMT_GREY;
4577 usbvision->frame[1].v4l2_format = usbvision_v4l2_format[0]; // V4L2_PIX_FMT_GREY;
4580 // See if a frame is completed, then use it.
4581 if (usbvision->frame[0].grabstate >= FrameState_Done) // _Done or _Error
4583 else if (usbvision->frame[1].grabstate >= FrameState_Done)// _Done or _Error
4586 if (noblock && (frmx == -1)) {
4588 goto usbvision_v4l2_read_done;
4591 // If no FRAME_DONE, look for a FRAME_GRABBING state.
4592 // See if a frame is in process (grabbing), then use it.
4594 if (usbvision->frame[0].grabstate == FrameState_Grabbing)
4596 else if (usbvision->frame[1].grabstate == FrameState_Grabbing)
4600 // If no frame is active, start one.
4602 usbvision_new_frame(usbvision, frmx = 0);
4604 frame = &usbvision->frame[frmx];
4607 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
4609 goto usbvision_v4l2_read_done;
4611 PDEBUG(DBG_IO, "Waiting frame grabbing");
4612 rc = wait_event_interruptible(frame->wq, (frame->grabstate == FrameState_Done) ||
4613 (frame->grabstate == FrameState_Error));
4615 goto usbvision_v4l2_read_done;
4618 if (frame->grabstate == FrameState_Error) {
4619 frame->bytes_read = 0;
4620 if (usbvision_new_frame(usbvision, frmx)) {
4621 err("%s: usbvision_new_frame() failed", __FUNCTION__);
4626 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__,
4627 frmx, frame->bytes_read, frame->scanlength);
4629 /* copy bytes to user space; we allow for partials reads */
4630 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
4631 count = frame->scanlength - frame->bytes_read;
4633 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
4635 goto usbvision_v4l2_read_done;
4638 frame->bytes_read += count;
4639 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", __FUNCTION__,
4640 (unsigned long)count, frame->bytes_read);
4642 if (frame->bytes_read >= frame->scanlength) {// All data has been read
4643 frame->bytes_read = 0;
4645 /* Mark it as available to be used again. */
4646 usbvision->frame[frmx].grabstate = FrameState_Unused;
4647 if (usbvision_new_frame(usbvision, frmx ? 0 : 1))
4648 err("%s: usbvision_new_frame() failed", __FUNCTION__);
4651 usbvision_v4l2_read_done:
4652 up(&usbvision->lock);
4656 static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
4658 struct video_device *dev = video_devdata(file);
4659 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
4660 unsigned long start = vma->vm_start;
4661 unsigned long size = vma->vm_end-vma->vm_start;
4663 unsigned long page, pos;
4665 if (!USBVISION_IS_OPERATIONAL(usbvision))
4668 if (size > (((USBVISION_NUMFRAMES * usbvision->max_frame_size) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1)))
4671 pos = (unsigned long) usbvision->fbuf;
4675 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10) //Compatibility for 2.6.10+ kernels
4676 page = vmalloc_to_pfn((void *)pos);
4677 if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
4680 #else //Compatibility for 2.6.0 - 2.6.9 kernels
4681 page = usbvision_kvirt_to_pa(pos);
4682 if (remap_page_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
4688 if (size > PAGE_SIZE)
4699 * Here comes the stuff for radio on usbvision based devices
4702 static int usbvision_radio_open(struct inode *inode, struct file *file)
4704 struct video_device *dev = video_devdata(file);
4705 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
4706 struct v4l2_frequency freq;
4709 PDEBUG(DBG_RIO, "%s:", __FUNCTION__);
4711 down(&usbvision->lock);
4713 if (usbvision->user) {
4714 err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__);
4719 if (timer_pending(&usbvision->powerOffTimer)) {
4720 del_timer(&usbvision->powerOffTimer);
4722 if (usbvision->power == 0) {
4723 usbvision_power_on(usbvision);
4724 usbvision_init_i2c(usbvision);
4728 // If so far no errors then we shall start the radio
4729 usbvision->radio = 1;
4730 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
4731 freq.frequency = 1517; //SWR3 @ 94.8MHz
4732 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq);
4733 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
4738 if (PowerOnAtOpen) {
4739 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
4740 usbvision_power_off(usbvision);
4741 usbvision->initialized = 0;
4744 up(&usbvision->lock);
4749 static int usbvision_radio_close(struct inode *inode, struct file *file)
4751 struct video_device *dev = video_devdata(file);
4752 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
4755 PDEBUG(DBG_RIO, "");
4757 down(&usbvision->lock);
4759 usbvision_audio_off(usbvision);
4763 if (PowerOnAtOpen) {
4764 mod_timer(&usbvision->powerOffTimer, jiffies + USBVISION_POWEROFF_TIME);
4765 usbvision->initialized = 0;
4768 up(&usbvision->lock);
4770 if (usbvision->remove_pending) {
4771 info("%s: Final disconnect", __FUNCTION__);
4772 usbvision_release(usbvision);
4776 PDEBUG(DBG_RIO, "success");
4781 static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file,
4782 unsigned int cmd, void *arg)
4784 struct video_device *dev = video_devdata(file);
4785 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
4787 if (!USBVISION_IS_OPERATIONAL(usbvision))
4791 /***************************
4793 ***************************/
4794 case VIDIOC_QUERYCAP:
4796 struct v4l2_capability *vc=arg;
4797 memset(vc, 0, sizeof(struct v4l2_capability));
4798 strcpy(vc->driver,"usbvision radio");
4799 strcpy(vc->card,usbvision->vcap.card);
4800 strcpy(vc->bus_info,"usb");
4801 vc->version = USBVISION_DRIVER_VERSION; /* version */
4802 vc->capabilities = V4L2_CAP_TUNER; /* capabilities */
4803 PDEBUG(DBG_RIO, "%s: VIDIOC_QUERYCAP", __FUNCTION__);
4806 case VIDIOC_QUERYCTRL:
4808 struct v4l2_queryctrl *qc = arg;
4811 case V4L2_CID_AUDIO_VOLUME:
4812 case V4L2_CID_AUDIO_MUTE:
4813 return v4l2_ctrl_query_fill_std(qc);
4822 struct v4l2_control *ctrl = arg;
4823 PDEBUG(DBG_IOCTL, "VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
4825 case V4L2_CID_AUDIO_VOLUME:
4826 /* ctrl->value = usbvision->volume; */
4828 case V4L2_CID_AUDIO_MUTE:
4829 ctrl->value = usbvision->AudioMute;
4838 struct v4l2_control *ctrl = arg;
4839 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
4841 PDEBUG(DBG_RIO, "%s: VIDIOC_S_CTRL id=%x value=%x", __FUNCTION__,ctrl->id,ctrl->value);
4844 case VIDIOC_G_TUNER:
4846 struct v4l2_tuner *vt = arg;
4848 if (!usbvision->have_tuner || vt->index) // Only tuner 0
4850 strcpy(vt->name, "Radio");
4851 vt->type = V4L2_TUNER_RADIO;
4852 vt->capability = V4L2_TUNER_CAP_STEREO;
4853 // japan: 76.0 MHz - 89.9 MHz
4854 // western europe: 87.5 MHz - 108.0 MHz
4855 // russia: 65.0 MHz - 108.0 MHz
4856 vt->rangelow = (int)(65*16);;
4857 vt->rangehigh = (int)(108*16);
4858 vt->audmode = V4L2_TUNER_MODE_STEREO;
4859 vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
4860 call_i2c_clients(usbvision,VIDIOC_G_TUNER,&vt);
4862 PDEBUG(DBG_RIO, "%s: VIDIOC_G_TUNER signal=%d", __FUNCTION__, vt->signal);
4865 case VIDIOC_S_TUNER:
4867 struct v4l2_tuner *vt = arg;
4869 // Only channel 0 has a tuner
4870 if((vt->index) || (usbvision->channel)) {
4873 PDEBUG(DBG_RIO, "%s: VIDIOC_S_TUNER", __FUNCTION__);
4876 case VIDIOC_G_AUDIO:
4878 struct v4l2_audio *va = arg;
4879 memset(va,0, sizeof(va));
4880 va->capability = V4L2_AUDCAP_STEREO;
4881 strcpy(va->name, "Radio");
4882 PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO");
4885 case VIDIOC_S_AUDIO:
4887 struct v4l2_audio *v = arg;
4891 PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO");
4892 // FIXME: void function ???
4895 case VIDIOC_G_FREQUENCY:
4897 struct v4l2_frequency *freq = arg;
4898 freq->tuner = 0; // Only one tuner
4899 freq->type = V4L2_TUNER_RADIO;
4900 freq->frequency = usbvision->freq;
4901 PDEBUG(DBG_RIO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
4904 case VIDIOC_S_FREQUENCY:
4906 struct v4l2_frequency *freq = arg;
4907 usbvision->freq = freq->frequency;
4908 call_i2c_clients(usbvision, cmd, freq);
4909 PDEBUG(DBG_RIO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
4913 /***************************
4915 ***************************/
4918 struct video_capability *vc = arg;
4920 memset(vc, 0, sizeof(struct video_capability));
4921 strcpy(vc->name,usbvision->vcap.card);
4922 vc->type = VID_TYPE_TUNER;
4925 PDEBUG(DBG_RIO, "%s: VIDIOCGCAP", __FUNCTION__);
4930 struct video_tuner *vt = arg;
4932 if((vt->tuner) || (usbvision->channel)) { /* Only tuner 0 */
4935 strcpy(vt->name, "Radio");
4936 // japan: 76.0 MHz - 89.9 MHz
4937 // western europe: 87.5 MHz - 108.0 MHz
4938 // russia: 65.0 MHz - 108.0 MHz
4939 vt->rangelow=(int)(65*16);
4940 vt->rangehigh=(int)(108*16);
4943 call_i2c_clients(usbvision,cmd,vt);
4944 PDEBUG(DBG_RIO, "%s: VIDIOCGTUNER signal=%d", __FUNCTION__, vt->signal);
4949 struct video_tuner *vt = arg;
4951 // Only channel 0 has a tuner
4952 if((vt->tuner) || (usbvision->channel)) {
4955 PDEBUG(DBG_RIO, "%s: VIDIOCSTUNER", __FUNCTION__);
4960 struct video_audio *va = arg;
4961 memset(va,0, sizeof(struct video_audio));
4962 call_i2c_clients(usbvision, cmd, va);
4963 va->flags|=VIDEO_AUDIO_MUTABLE;
4966 strcpy(va->name, "Radio");
4967 PDEBUG(DBG_RIO, "%s: VIDIOCGAUDIO", __FUNCTION__);
4972 struct video_audio *va = arg;
4977 if(va->flags & VIDEO_AUDIO_MUTE) {
4978 if (usbvision_audio_mute(usbvision)) {
4983 if (usbvision_audio_on(usbvision)) {
4987 PDEBUG(DBG_RIO, "%s: VIDIOCSAUDIO flags=0x%x)", __FUNCTION__, va->flags);
4992 unsigned long *freq = arg;
4994 *freq = usbvision->freq;
4995 PDEBUG(DBG_RIO, "%s: VIDIOCGFREQ freq = %ld00 kHz", __FUNCTION__, (*freq * 10)>>4);
5000 unsigned long *freq = arg;
5002 usbvision->freq = *freq;
5003 call_i2c_clients(usbvision, cmd, freq);
5004 PDEBUG(DBG_RIO, "%s: VIDIOCSFREQ freq = %ld00 kHz", __FUNCTION__, (*freq * 10)>>4);
5009 PDEBUG(DBG_RIO, "%s: Unknown command %x", __FUNCTION__, cmd);
5010 return -ENOIOCTLCMD;
5017 static int usbvision_radio_ioctl(struct inode *inode, struct file *file,
5018 unsigned int cmd, unsigned long arg)
5020 return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl);
5025 * Here comes the stuff for vbi on usbvision based devices
5028 static int usbvision_vbi_open(struct inode *inode, struct file *file)
5030 struct video_device *dev = video_devdata(file);
5031 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
5035 PDEBUG(DBG_RIO, "%s:", __FUNCTION__);
5037 down(&usbvision->lock);
5039 if (usbvision->user) {
5040 err("%s: Someone tried to open an already opened USBVision VBI!", __FUNCTION__);
5045 if (timer_pending(&usbvision->powerOffTimer)) {
5046 del_timer(&usbvision->powerOffTimer);
5048 if (usbvision->power == 0) {
5049 usbvision_power_on(usbvision);
5050 usbvision_init_i2c(usbvision);
5054 // If so far no errors then we shall start the vbi device
5055 //usbvision->vbi = 1;
5056 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
5057 freq = 1517; //SWR3 @ 94.8MHz
5058 call_i2c_clients(usbvision, VIDIOCSFREQ, &freq);
5059 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
5064 if (PowerOnAtOpen) {
5065 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
5066 usbvision_power_off(usbvision);
5067 usbvision->initialized = 0;
5070 up(&usbvision->lock);
5074 static int usbvision_vbi_close(struct inode *inode, struct file *file)
5076 struct video_device *dev = video_devdata(file);
5077 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
5080 PDEBUG(DBG_RIO, "");
5082 down(&usbvision->lock);
5084 usbvision_audio_off(usbvision);
5088 if (PowerOnAtOpen) {
5089 mod_timer(&usbvision->powerOffTimer, jiffies + USBVISION_POWEROFF_TIME);
5090 usbvision->initialized = 0;
5093 up(&usbvision->lock);
5095 if (usbvision->remove_pending) {
5096 info("%s: Final disconnect", __FUNCTION__);
5097 usbvision_release(usbvision);
5101 PDEBUG(DBG_RIO, "success");
5106 static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
5107 unsigned int cmd, void *arg)
5109 struct video_device *dev = video_devdata(file);
5110 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
5112 if (!USBVISION_IS_OPERATIONAL(usbvision))
5116 case VIDIOC_QUERYCAP:
5118 struct v4l2_capability *vc=arg;
5119 memset(vc, 0, sizeof(struct v4l2_capability));
5120 strcpy(vc->driver,"usbvision vbi");
5121 strcpy(vc->card,usbvision->vcap.card);
5122 strcpy(vc->bus_info,"usb");
5123 vc->version = USBVISION_DRIVER_VERSION; /* version */
5124 vc->capabilities = V4L2_CAP_VBI_CAPTURE; /* capabilities */
5125 PDEBUG(DBG_RIO, "%s: VIDIOC_QUERYCAP", __FUNCTION__);
5130 struct video_tuner *vt = arg;
5132 if((vt->tuner) || (usbvision->channel)) { /* Only tuner 0 */
5135 strcpy(vt->name, "vbi");
5136 // japan: 76.0 MHz - 89.9 MHz
5137 // western europe: 87.5 MHz - 108.0 MHz
5138 // russia: 65.0 MHz - 108.0 MHz
5139 vt->rangelow=(int)(65*16);
5140 vt->rangehigh=(int)(108*16);
5143 call_i2c_clients(usbvision,cmd,vt);
5144 PDEBUG(DBG_RIO, "%s: VIDIOCGTUNER signal=%d", __FUNCTION__, vt->signal);
5149 struct video_tuner *vt = arg;
5151 // Only channel 0 has a tuner
5152 if((vt->tuner) || (usbvision->channel)) {
5155 PDEBUG(DBG_RIO, "%s: VIDIOCSTUNER", __FUNCTION__);
5160 struct video_audio *va = arg;
5161 memset(va,0, sizeof(struct video_audio));
5162 call_i2c_clients(usbvision, cmd, va);
5163 va->flags|=VIDEO_AUDIO_MUTABLE;
5166 strcpy(va->name, "vbi");
5167 PDEBUG(DBG_RIO, "%s: VIDIOCGAUDIO", __FUNCTION__);
5172 struct video_audio *va = arg;
5177 if(va->flags & VIDEO_AUDIO_MUTE) {
5178 if (usbvision_audio_mute(usbvision)) {
5183 if (usbvision_audio_on(usbvision)) {
5187 PDEBUG(DBG_RIO, "%s: VIDIOCSAUDIO flags=0x%x)", __FUNCTION__, va->flags);
5192 unsigned long *freq = arg;
5194 *freq = usbvision->freq;
5195 PDEBUG(DBG_RIO, "%s: VIDIOCGFREQ freq = %ld00 kHz", __FUNCTION__, (*freq * 10)>>4);
5200 unsigned long *freq = arg;
5202 usbvision->freq = *freq;
5203 call_i2c_clients(usbvision, cmd, freq);
5204 PDEBUG(DBG_RIO, "%s: VIDIOCSFREQ freq = %ld00 kHz", __FUNCTION__, (*freq * 10)>>4);
5209 PDEBUG(DBG_RIO, "%s: Unknown command %d", __FUNCTION__, cmd);
5210 return -ENOIOCTLCMD;
5216 static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
5217 unsigned int cmd, unsigned long arg)
5219 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
5224 static void usbvision_configure_video(struct usb_usbvision *usbvision)
5228 if (usbvision == NULL)
5231 model = usbvision->DevModel;
5233 RESTRICT_TO_RANGE(init_brightness, 0, 255);
5234 RESTRICT_TO_RANGE(init_contrast, 0, 255);
5235 RESTRICT_TO_RANGE(init_saturation, 0, 255);
5236 RESTRICT_TO_RANGE(init_hue, 0, 255);
5238 usbvision->saturation = init_saturation << 8;
5239 usbvision->hue = init_hue << 8;
5240 usbvision->brightness = init_brightness << 8;
5241 usbvision->contrast = init_contrast << 8;
5242 usbvision->depth = 24;
5243 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
5245 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2 >= 0) {
5246 usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2 & 0xff;
5248 usbvision->Vin_Reg2_Preset = 0;
5251 memset(&usbvision->vcap, 0, sizeof(usbvision->vcap));
5252 strcpy(usbvision->vcap.driver, "USBVision");
5253 usbvision->vcap.capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
5254 (dga ? (V4L2_FBUF_CAP_LIST_CLIPPING | V4L2_CAP_VIDEO_OVERLAY) : 0) |
5255 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
5256 usbvision->vcap.version = USBVISION_DRIVER_VERSION; /* version */
5258 usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
5260 memset(&usbvision->input, 0, sizeof(usbvision->input));
5261 usbvision->input.tuner = 0;
5262 usbvision->input.type = V4L2_INPUT_TYPE_TUNER|VIDEO_TYPE_CAMERA;
5263 usbvision->input.std = usbvision_device_data[model].VideoNorm;
5265 /* This should be here to make i2c clients to be able to register */
5266 usbvision_audio_off(usbvision); //first switch off audio
5267 if (!PowerOnAtOpen) {
5268 usbvision_power_on(usbvision); //and then power up the noisy tuner
5269 usbvision_init_i2c(usbvision);
5274 // Video registration stuff
5278 static struct file_operations usbvision_fops = {
5279 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
5280 .owner = THIS_MODULE,
5282 .open = usbvision_v4l2_open,
5283 .release = usbvision_v4l2_close,
5284 .read = usbvision_v4l2_read,
5285 .mmap = usbvision_v4l2_mmap,
5286 .ioctl = usbvision_v4l2_ioctl,
5287 .llseek = no_llseek,
5289 static struct video_device usbvision_video_template = {
5290 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
5291 .owner = THIS_MODULE,
5293 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE,
5294 .hardware = VID_HARDWARE_USBVISION,
5295 .fops = &usbvision_fops,
5296 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5297 .name = "usbvision-video",
5298 .release = video_device_release,
5305 static struct file_operations usbvision_radio_fops = {
5306 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
5307 .owner = THIS_MODULE,
5309 .open = usbvision_radio_open,
5310 .release = usbvision_radio_close,
5311 .ioctl = usbvision_radio_ioctl,
5312 .llseek = no_llseek,
5315 static struct video_device usbvision_radio_template=
5317 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
5318 .owner = THIS_MODULE,
5320 .type = VID_TYPE_TUNER,
5321 .hardware = VID_HARDWARE_USBVISION,
5322 .fops = &usbvision_radio_fops,
5323 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5324 .release = video_device_release,
5325 .name = "usbvision-radio",
5332 static struct file_operations usbvision_vbi_fops = {
5333 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
5334 .owner = THIS_MODULE,
5336 .open = usbvision_vbi_open,
5337 .release = usbvision_vbi_close,
5338 .ioctl = usbvision_vbi_ioctl,
5339 .llseek = no_llseek,
5342 static struct video_device usbvision_vbi_template=
5344 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
5345 .owner = THIS_MODULE,
5347 .type = VID_TYPE_TUNER,
5348 .hardware = VID_HARDWARE_USBVISION,
5349 .fops = &usbvision_vbi_fops,
5350 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5351 .release = video_device_release,
5352 .name = "usbvision-vbi",
5358 static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
5359 struct video_device *vdev_template,
5362 struct usb_device *usb_dev = usbvision->dev;
5363 struct video_device *vdev;
5365 if (usb_dev == NULL) {
5366 err("%s: usbvision->dev is not set", __FUNCTION__);
5370 vdev = video_device_alloc();
5374 *vdev = *vdev_template;
5375 // vdev->minor = -1;
5376 vdev->dev = &usb_dev->dev;
5377 snprintf(vdev->name, sizeof(vdev->name), "%s", name);
5378 video_set_drvdata(vdev, usbvision);
5382 // unregister video4linux devices
5383 static void usbvision_unregister_video(struct usb_usbvision *usbvision)
5386 if (usbvision->vbi) {
5387 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f);
5388 if (usbvision->vbi->minor != -1) {
5389 video_unregister_device(usbvision->vbi);
5392 video_device_release(usbvision->vbi);
5394 usbvision->vbi = NULL;
5398 if (usbvision->rdev) {
5399 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f);
5400 if (usbvision->rdev->minor != -1) {
5401 video_unregister_device(usbvision->rdev);
5404 video_device_release(usbvision->rdev);
5406 usbvision->rdev = NULL;
5410 if (usbvision->vdev) {
5411 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f);
5412 if (usbvision->vdev->minor != -1) {
5413 video_unregister_device(usbvision->vdev);
5416 video_device_release(usbvision->vdev);
5418 usbvision->vdev = NULL;
5422 // register video4linux devices
5423 static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
5426 usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video");
5427 if (usbvision->vdev == NULL) {
5430 if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) {
5433 info("USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]", usbvision->nr,usbvision->vdev->minor & 0x1f);
5436 if (usbvision_device_data[usbvision->DevModel].Radio) {
5437 // usbvision has radio
5438 usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio");
5439 if (usbvision->rdev == NULL) {
5442 if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) {
5445 info("USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]", usbvision->nr, usbvision->rdev->minor & 0x1f);
5448 if (usbvision_device_data[usbvision->DevModel].vbi) {
5449 usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI");
5450 if (usbvision->vdev == NULL) {
5453 if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) {
5456 info("USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)", usbvision->nr,usbvision->vbi->minor & 0x1f);
5462 err("USBVision[%d]: video_register_device() failed", usbvision->nr);
5463 usbvision_unregister_video(usbvision);
5470 * This code allocates the struct usb_usbvision. It is filled with default values.
5472 * Returns NULL on error, a pointer to usb_usbvision else.
5475 static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
5477 struct usb_usbvision *usbvision;
5480 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) {
5484 usbvision->dev = dev;
5486 for (FrameIdx = 0; FrameIdx < USBVISION_NUMFRAMES; FrameIdx++) {
5487 init_waitqueue_head(&usbvision->frame[FrameIdx].wq);
5489 init_waitqueue_head(&usbvision->overlay_frame.wq);
5490 init_MUTEX(&usbvision->lock); /* to 1 == available */
5492 // prepare control urb for control messages during interrupts
5493 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
5494 if (usbvision->ctrlUrb == NULL) {
5497 init_waitqueue_head(&usbvision->ctrlUrb_wq);
5498 init_MUTEX(&usbvision->ctrlUrbLock);
5500 init_timer(&usbvision->powerOffTimer);
5501 usbvision->powerOffTimer.data = (long) usbvision;
5502 usbvision->powerOffTimer.function = usbvision_powerOffTimer;
5507 if (usbvision && usbvision->ctrlUrb) {
5508 usb_free_urb(usbvision->ctrlUrb);
5517 * usbvision_release()
5519 * This code does final release of struct usb_usbvision. This happens
5520 * after the device is disconnected -and- all clients closed their files.
5523 static void usbvision_release(struct usb_usbvision *usbvision)
5525 PDEBUG(DBG_PROBE, "");
5527 down(&usbvision->lock);
5529 if (timer_pending(&usbvision->powerOffTimer)) {
5530 del_timer(&usbvision->powerOffTimer);
5533 usbvision->usbvision_used = 0;
5534 usbvision->initialized = 0;
5536 up(&usbvision->lock);
5538 usbvision_remove_sysfs(usbvision->vdev);
5539 usbvision_unregister_video(usbvision);
5541 if (usbvision->overlay_base) {
5542 iounmap(usbvision->overlay_base);
5546 if (usbvision->ctrlUrb) {
5547 usb_free_urb(usbvision->ctrlUrb);
5552 PDEBUG(DBG_PROBE, "success");
5559 * This procedure queries device descriptor and accepts the interface
5560 * if it looks like USBVISION video device
5563 static int __devinit usbvision_probe(struct usb_interface *intf, const struct usb_device_id *devid)
5565 struct usb_device *dev = interface_to_usbdev(intf);
5566 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
5567 const struct usb_host_interface *interface;
5568 struct usb_usbvision *usbvision = NULL;
5569 const struct usb_endpoint_descriptor *endpoint;
5572 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
5573 dev->descriptor.idVendor, dev->descriptor.idProduct, ifnum);
5575 /* Is it an USBVISION video dev? */
5577 for(model = 0; usbvision_device_data[model].idVendor; model++) {
5578 if (le16_to_cpu(dev->descriptor.idVendor) != usbvision_device_data[model].idVendor) {
5581 if (le16_to_cpu(dev->descriptor.idProduct) != usbvision_device_data[model].idProduct) {
5585 info("%s: %s found", __FUNCTION__, usbvision_device_data[model].ModelString);
5589 if (usbvision_device_data[model].idVendor == 0) {
5590 return -ENODEV; //no matching device
5592 if (usbvision_device_data[model].Interface >= 0) {
5593 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
5596 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
5598 endpoint = &interface->endpoint[1].desc;
5599 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) {
5600 err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum);
5601 err("%s: Endpoint attribures %d", __FUNCTION__, endpoint->bmAttributes);
5604 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
5605 err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum);
5611 if ((usbvision = usbvision_alloc(dev)) == NULL) {
5612 err("%s: couldn't allocate USBVision struct", __FUNCTION__);
5615 if (dev->descriptor.bNumConfigurations > 1) {
5616 usbvision->bridgeType = BRIDGE_NT1004;
5618 else if (usbvision_device_data[model].ModelString == "Dazzle Fusion Model DVC-90 Rev 1 (SECAM)") {
5619 usbvision->bridgeType = BRIDGE_NT1005;
5622 usbvision->bridgeType = BRIDGE_NT1003;
5624 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
5626 down(&usbvision->lock);
5628 usbvision->nr = usbvision_nr++;
5630 usbvision->have_tuner = usbvision_device_data[model].Tuner;
5631 if (usbvision->have_tuner) {
5632 usbvision->tuner_type = usbvision_device_data[model].TunerType;
5635 usbvision->DevModel = model;
5636 usbvision->remove_pending = 0;
5637 usbvision->last_error = 0;
5638 usbvision->iface = ifnum;
5639 usbvision->ifaceAltInactive = 0;
5640 usbvision->ifaceAltActive = 1;
5641 usbvision->video_endp = endpoint->bEndpointAddress;
5642 usbvision->isocPacketSize = 0;
5643 usbvision->usb_bandwidth = 0;
5644 usbvision->user = 0;
5646 usbvision_register_video(usbvision);
5647 usbvision_configure_video(usbvision);
5648 up(&usbvision->lock);
5651 usb_set_intfdata (intf, usbvision);
5652 usbvision_create_sysfs(usbvision->vdev);
5654 PDEBUG(DBG_PROBE, "success");
5660 * usbvision_disconnect()
5662 * This procedure stops all driver activity, deallocates interface-private
5663 * structure (pointed by 'ptr') and after that driver should be removable
5664 * with no ill consequences.
5667 static void __devexit usbvision_disconnect(struct usb_interface *intf)
5669 struct usb_usbvision *usbvision = usb_get_intfdata(intf);
5671 PDEBUG(DBG_PROBE, "");
5673 if (usbvision == NULL) {
5674 err("%s: usb_get_intfdata() failed", __FUNCTION__);
5677 usb_set_intfdata (intf, NULL);
5679 down(&usbvision->lock);
5681 // At this time we ask to cancel outstanding URBs
5682 usbvision_stop_isoc(usbvision);
5684 if (usbvision->power) {
5685 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
5686 usbvision_power_off(usbvision);
5688 usbvision->remove_pending = 1; // Now all ISO data will be ignored
5690 usb_put_dev(usbvision->dev);
5691 usbvision->dev = NULL; // USB device is no more
5693 up(&usbvision->lock);
5695 if (usbvision->user) {
5696 info("%s: In use, disconnect pending", __FUNCTION__);
5699 usbvision_release(usbvision);
5702 PDEBUG(DBG_PROBE, "success");
5706 static struct usb_driver usbvision_driver = {
5707 .name = "usbvision",
5708 .id_table = usbvision_table,
5709 .probe = usbvision_probe,
5710 .disconnect = usbvision_disconnect
5714 * customdevice_process()
5716 * This procedure preprocesses CustomDevice parameter if any
5719 void customdevice_process(void)
5721 usbvision_device_data[0]=usbvision_device_data[1];
5722 usbvision_table[0]=usbvision_table[1];
5726 char *parse=CustomDevice;
5728 PDEBUG(DBG_PROBE, "CustomDevide=%s", CustomDevice);
5730 /*format is CustomDevice="0x0573 0x4D31 0 7113 3 PAL 1 1 1 5 -1 -1 -1 -1 -1"
5731 usbvision_device_data[0].idVendor;
5732 usbvision_device_data[0].idProduct;
5733 usbvision_device_data[0].Interface;
5734 usbvision_device_data[0].Codec;
5735 usbvision_device_data[0].VideoChannels;
5736 usbvision_device_data[0].VideoNorm;
5737 usbvision_device_data[0].AudioChannels;
5738 usbvision_device_data[0].Radio;
5739 usbvision_device_data[0].Tuner;
5740 usbvision_device_data[0].TunerType;
5741 usbvision_device_data[0].Vin_Reg1;
5742 usbvision_device_data[0].Vin_Reg2;
5743 usbvision_device_data[0].X_Offset;
5744 usbvision_device_data[0].Y_Offset;
5745 usbvision_device_data[0].Dvi_yuv;
5746 usbvision_device_data[0].ModelString;
5750 usbvision_device_data[0].ModelString="USBVISION Custom Device";
5753 sscanf(parse,"%x",&usbvision_device_data[0].idVendor);
5755 PDEBUG(DBG_PROBE, "idVendor=0x%.4X", usbvision_device_data[0].idVendor);
5757 sscanf(parse,"%x",&usbvision_device_data[0].idProduct);
5759 PDEBUG(DBG_PROBE, "idProduct=0x%.4X", usbvision_device_data[0].idProduct);
5760 sscanf(parse,"%d",&usbvision_device_data[0].Interface);
5762 PDEBUG(DBG_PROBE, "Interface=%d", usbvision_device_data[0].Interface);
5763 sscanf(parse,"%d",&usbvision_device_data[0].Codec);
5765 PDEBUG(DBG_PROBE, "Codec=%d", usbvision_device_data[0].Codec);
5766 sscanf(parse,"%d",&usbvision_device_data[0].VideoChannels);
5768 PDEBUG(DBG_PROBE, "VideoChannels=%d", usbvision_device_data[0].VideoChannels);
5773 PDEBUG(DBG_PROBE, "VideoNorm=PAL");
5774 usbvision_device_data[0].VideoNorm=VIDEO_MODE_PAL;
5778 PDEBUG(DBG_PROBE, "VideoNorm=SECAM");
5779 usbvision_device_data[0].VideoNorm=VIDEO_MODE_SECAM;
5783 PDEBUG(DBG_PROBE, "VideoNorm=NTSC");
5784 usbvision_device_data[0].VideoNorm=VIDEO_MODE_NTSC;
5788 PDEBUG(DBG_PROBE, "VideoNorm=PAL (by default)");
5789 usbvision_device_data[0].VideoNorm=VIDEO_MODE_PAL;
5794 sscanf(parse,"%d",&usbvision_device_data[0].AudioChannels);
5796 PDEBUG(DBG_PROBE, "AudioChannels=%d", usbvision_device_data[0].AudioChannels);
5797 sscanf(parse,"%d",&usbvision_device_data[0].Radio);
5799 PDEBUG(DBG_PROBE, "Radio=%d", usbvision_device_data[0].Radio);
5800 sscanf(parse,"%d",&usbvision_device_data[0].Tuner);
5802 PDEBUG(DBG_PROBE, "Tuner=%d", usbvision_device_data[0].Tuner);
5803 sscanf(parse,"%d",&usbvision_device_data[0].TunerType);
5805 PDEBUG(DBG_PROBE, "TunerType=%d", usbvision_device_data[0].TunerType);
5806 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg1);
5808 PDEBUG(DBG_PROBE, "Vin_Reg1=%d", usbvision_device_data[0].Vin_Reg1);
5809 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg2);
5811 PDEBUG(DBG_PROBE, "Vin_Reg2=%d", usbvision_device_data[0].Vin_Reg2);
5812 sscanf(parse,"%d",&usbvision_device_data[0].X_Offset);
5814 PDEBUG(DBG_PROBE, "X_Offset=%d", usbvision_device_data[0].X_Offset);
5815 sscanf(parse,"%d",&usbvision_device_data[0].Y_Offset);
5817 PDEBUG(DBG_PROBE, "Y_Offset=%d", usbvision_device_data[0].Y_Offset);
5818 sscanf(parse,"%d",&usbvision_device_data[0].Dvi_yuv);
5819 PDEBUG(DBG_PROBE, "Dvi_yuv=%d", usbvision_device_data[0].Dvi_yuv);
5821 //add to usbvision_table also
5822 usbvision_table[0].match_flags=USB_DEVICE_ID_MATCH_DEVICE;
5823 usbvision_table[0].idVendor=usbvision_device_data[0].idVendor;
5824 usbvision_table[0].idProduct=usbvision_device_data[0].idProduct;
5834 * This code is run to initialize the driver.
5837 static int __init usbvision_init(void)
5841 PDEBUG(DBG_PROBE, "");
5843 PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled");
5844 PDEBUG(DBG_IO, "IO debugging is enabled");
5845 PDEBUG(DBG_RIO, "RIO debugging is enabled");
5846 PDEBUG(DBG_HEADER, "HEADER debugging is enabled");
5847 PDEBUG(DBG_PROBE, "PROBE debugging is enabled");
5848 PDEBUG(DBG_IRQ, "IRQ debugging is enabled");
5849 PDEBUG(DBG_ISOC, "ISOC debugging is enabled");
5850 PDEBUG(DBG_PARSE, "PARSE debugging is enabled");
5851 PDEBUG(DBG_SCRATCH, "SCRATCH debugging is enabled");
5852 PDEBUG(DBG_FUNC, "FUNC debugging is enabled");
5853 PDEBUG(DBG_I2C, "I2C debugging is enabled");
5855 /* disable planar mode support unless compression enabled */
5856 if (isocMode != ISOC_MODE_COMPRESS ) {
5857 // FIXME : not the right way to set supported flag
5858 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
5859 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
5862 customdevice_process();
5864 errCode = usb_register(&usbvision_driver);
5867 info(DRIVER_DESC " : " DRIVER_VERSION);
5868 PDEBUG(DBG_PROBE, "success");
5873 static void __exit usbvision_exit(void)
5875 PDEBUG(DBG_PROBE, "");
5877 usb_deregister(&usbvision_driver);
5878 PDEBUG(DBG_PROBE, "success");
5881 module_init(usbvision_init);
5882 module_exit(usbvision_exit);
5885 * Overrides for Emacs so that we follow Linus's tabbing style.
5886 * ---------------------------------------------------------------------------