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V4L/DVB (4936): Make MT4049FM5 tuner to set FM Gain to Normal
[linux-2.6-block.git] / drivers / media / video / usbvision / usbvision-core.c
CommitLineData
781aa1d1
MCC		 1/*
2 * USB USBVISION Video device driver 0.9.8.3cvs (For Kernel 2.4.19-2.4.32 + 2.6.0-2.6.16)
3 *
18d8a454 4 *
781aa1d1
MCC		 5 *
6 * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
7 *
8 * This module is part of usbvision driver project.
9 *
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.
14 *
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.
19 *
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.
23 *
24 * Let's call the version 0.... until compression decoding is completely
25 * implemented.
26 *
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
33 *
34 * History:
35 *
36 * Mar. 2000 - 15.12.2000: (0.0.0 - 0.2.0)
37 * Several alpha drivers and the first beta.
38 *
39 * Since Dec. 2000: (0.2.1) or (v2.1)
40 * Code changes or updates by Dwaine Garden and every other person.
41 *
42 * Added: New Hauppauge TV device Vendor ID: 0x0573
43 * Product ID: 0x4D01
44 * (Thanks to Giovanni Garberoglio)
45 *
46 * Added: UK Hauppauge WinTV-USB Vendor ID: 0x0573
47 * Product ID: 0x4D02
48 * (Thanks to Derek Freeman-Jones)
49 *
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
59 *
60 *
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
66 * Product ID: 0x4D03
67 * (Thanks to Julius Hrivnac)
68 * - Added: US Hauppauge WINTV USB Vendor ID: 0x0573
69 * Product ID: 0x4D00
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.
74 *
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.
79 *
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.
82 *
83 * July 6, 2001 - Added: HAUPPAUGE WINTV-USB FM USA Vendor ID: 0x0573
84 * Product ID: 0x4D10
85 * (Thanks to Braddock Gaskill)
86 * Added: USBGear USBG-V1 resp. HAMA USB
87 * Vendor ID: 0x0573
88 * Product ID: 0x0003
89 * (Thanks to Bradley A. Singletary and Juergen Weigert)
90 *
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.
102 *
103 * Feb 10, 2002
104 * - Added radio device
105 *
106 *
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.
114 *
115 *
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.
119 *
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.
125 *
126 * Feb 10, 2003 - Joerg Heckenbach
127 * - fixed endian bug for Motorola PPC
128 *
129 * Feb 13, 2003 - Joerg Heckenbach
130 * - fixed Vin_Reg setting and presetting from usbvision_device_data()
131 *
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*)
139 *
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.
143 *
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)
149 *
150 *
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
154 * missing yet.
155 *
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.
159 *
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
164 *
165 * Feb 04, 2004 - 0.9.4 Joerg Heckenbach
166 * - Found bug in color decompression. Color is OK now.
167 *
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)
172 *
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
176 *
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*)
180 *
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.
18d8a454 184 * - Added device Hauppauge WinTv-USB III (PAL) FM Model 597 to usbvision.h
781aa1d1
MCC		 185 *
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.
188 * - Thanks Hal.....
189 *
190 * July 30, 2004 - 0.9.6 Dwaine Garden
191 * - Patch was submitted by Tobias Diaz to fix Model ID mismatch in usbvision.h.
192 * - Thanks.....
193 *
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.
198 *
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.
204 *
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.
18d8a454 209 * - Tried to fix up the annoying empty directories in the sourceforge.net cvs. Fuck it up again. 8*(
781aa1d1
MCC		 210 *
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.
221 *
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.
225 *
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.
229 *
230 * January 2, 2005 - 0.9.8.1cvs Dwaine Garden
18d8a454 231 * - Setup that you can specify which device is used for video. Default is auto detect next available device number eg. /dev/videoX
781aa1d1
MCC		 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)
236 *
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.
239 *
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+.
244 *
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.
250 *
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.
18d8a454 254 * - Fixed some spelling mistakes. 8*)
781aa1d1
MCC		 255 *
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.
18d8a454 258 * - Swapped usbvision_register_video and usbvision_configure_video to fix problem with PowerOnAtOpen=0.
781aa1d1
MCC		 259 * Thanks to Erwan Velu
260 *
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).
18d8a454 263 * - Added function usb_get_dev(dev) and ; To help with unloading the module multiple times without crashing.
781aa1d1
MCC		 264 * (Keep the reference count in kobjects correct)
265 *
266 * June 14, 2005 - 0.9.8.2cvs Dwaine
18d8a454 267 * - Missed a change in saa7113.c for checking kernel version. Added conditional if's.
781aa1d1
MCC		 268 *
269 * June 15, 2005 - 0.9.8.2cvs Dwaine
18d8a454 270 * - Added new device WinTV device VendorId 0573 and ProductId 4d29.
781aa1d1
MCC		 271 * - Hacked some support for newer NT1005 devices. This devices only seem to have one configuration, not multiple configurations like the NT1004.
272 *
273 * June 29, 2005 - 0.9.8.2cvs Dwaine
18d8a454
DG		 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.
781aa1d1 277 * - Sent an e-mail to the maintainer of usb.ids. New devices identified need to be added.
18d8a454 278 * - Fixed compile error with saa7113 under kernel 2.6.12.
781aa1d1
MCC		 279 *
280 * July 6, 2005 - 0.9.8.2cvs Dwaine
18d8a454 281 * - Patch submitted by Gary Ng for two additional procfs entries. Device Input and Frequency setting.
781aa1d1
MCC		 282 *
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.
18d8a454 286 * - I have no clue as to which devices use this new tuner, so people will have to contact me and tell me.
781aa1d1
MCC		 287 *
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......
291 *
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
295 *
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
299 *
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.
303 *
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*)
18d8a454 308 *
781aa1d1
MCC		 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.
18d8a454 312 *
781aa1d1
MCC		 313 *
314 *
315 * TODO:
316 * - use submit_urb for all setup packets
317 * - Fix memory settings for nt1004. It is 4 times as big as the
318 * nt1003 memory.
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
325 *
326 */
327
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>
781aa1d1
MCC		 342#include <asm/io.h>
343#include <linux/videodev2.h>
344#include <linux/video_decoder.h>
345#include <linux/i2c.h>
781aa1d1
MCC		 346
347#define USBVISION_DRIVER_VERSION_MAJOR 0
348#define USBVISION_DRIVER_VERSION_MINOR 8
349#define USBVISION_DRIVER_VERSION_PATCHLEVEL 0
350
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)
353
18d8a454
DG		 354#include <media/saa7115.h>
355#include <media/v4l2-common.h>
781aa1d1
MCC		 356#include <media/tuner.h>
357#include <media/audiochip.h>
358
359 #include <linux/moduleparam.h>
360 #include <linux/workqueue.h>
361
362#ifdef CONFIG_KMOD
363#include <linux/kmod.h>
364#endif
365
366#include "usbvision.h"
781aa1d1
MCC		 367
368#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__
369#define EMAIL "joerg@heckenbach-aw.de"
370#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>, Dwaine Garden <DwaineGarden@rogers.com>"
371#define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
372#define DRIVER_LICENSE "GPL"
373#define DRIVER_ALIAS "USBVision"
374
375#define ENABLE_HEXDUMP 0 /* Enable if you need it */
376
377
378#define USBVISION_DEBUG /* Turn on debug messages */
379
380#ifdef USBVISION_DEBUG
381 #define PDEBUG(level, fmt, args...) \
382 if (debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args)
383#else
384 #define PDEBUG(level, fmt, args...) do {} while(0)
385#endif
386
387#define DBG_IOCTL 1<<3
388#define DBG_IO 1<<4
389#define DBG_RIO 1<<5
390#define DBG_HEADER 1<<7
391#define DBG_PROBE 1<<8
392#define DBG_IRQ 1<<9
393#define DBG_ISOC 1<<10
394#define DBG_PARSE 1<<11
395#define DBG_SCRATCH 1<<12
396#define DBG_FUNC 1<<13
397#define DBG_I2C 1<<14
398
399#define DEBUG(x...) /* General Debug */
400#define IODEBUG(x...) /* Debug IO */
401#define OVDEBUG(x...) /* Debug overlay */
402#define MDEBUG(x...) /* Debug memory management */
403
404//String operations
405#define rmspace(str) while(*str==' ') str++;
406#define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
407
408
409static int usbvision_nr = 0; // sequential number of usbvision device
3084920b
TM		 410static unsigned long usbvision_timestamp = 0; // timestamp in jiffies of a hundred frame
411static unsigned long usbvision_counter = 0; // frame counter
781aa1d1
MCC		 412
413static const int max_imgwidth = MAX_FRAME_WIDTH;
414static const int max_imgheight = MAX_FRAME_HEIGHT;
415static const int min_imgwidth = MIN_FRAME_WIDTH;
416static const int min_imgheight = MIN_FRAME_HEIGHT;
417
418#define FRAMERATE_MIN 0
419#define FRAMERATE_MAX 31
420
421
422enum {
423 ISOC_MODE_YUV422 = 0x03,
424 ISOC_MODE_YUV420 = 0x14,
425 ISOC_MODE_COMPRESS = 0x60,
426};
427
6714b012 428static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
18d8a454
DG		 429 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" },
430 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" },
431 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" },
432 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" },
433 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" },
434 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" },
435 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 !
436 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
6714b012
MCC		 437};
438
f2242ee5
TM		 439/* supported tv norms */
440static struct usbvision_tvnorm tvnorms[] = {
441 {
442 .name = "PAL",
443 .id = V4L2_STD_PAL,
444 }, {
445 .name = "NTSC",
446 .id = V4L2_STD_NTSC,
447 }, {
448 .name = "SECAM",
449 .id = V4L2_STD_SECAM,
450 }, {
451 .name = "PAL-M",
452 .id = V4L2_STD_PAL_M,
453 }
454};
455
456#define TVNORMS ARRAY_SIZE(tvnorms)
457
6714b012 458
781aa1d1
MCC		 459/*
460 * The value of 'scratch_buf_size' affects quality of the picture
461 * in many ways. Shorter buffers may cause loss of data when client
462 * is too slow. Larger buffers are memory-consuming and take longer
463 * to work with. This setting can be adjusted, but the default value
464 * should be OK for most desktop users.
465 */
466#define DEFAULT_SCRATCH_BUF_SIZE (0x20000) // 128kB memory scratch buffer
467static const int scratch_buf_size = DEFAULT_SCRATCH_BUF_SIZE;
468
781aa1d1
MCC		 469// Function prototypes
470static int usbvision_restart_isoc(struct usb_usbvision *usbvision);
471static int usbvision_begin_streaming(struct usb_usbvision *usbvision);
f2242ee5 472static int usbvision_muxsel(struct usb_usbvision *usbvision, int channel);
781aa1d1
MCC		 473static int usbvision_i2c_write(void *data, unsigned char addr, char *buf, short len);
474static int usbvision_i2c_read(void *data, unsigned char addr, char *buf, short len);
475static int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg);
476static int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg, unsigned char value);
477static int usbvision_request_intra (struct usb_usbvision *usbvision);
478static int usbvision_unrequest_intra (struct usb_usbvision *usbvision);
479static int usbvision_adjust_compression (struct usb_usbvision *usbvision);
480static int usbvision_measure_bandwidth (struct usb_usbvision *usbvision);
481static void usbvision_release(struct usb_usbvision *usbvision);
18d8a454
DG		 482static int usbvision_set_input(struct usb_usbvision *usbvision);
483static int usbvision_set_output(struct usb_usbvision *usbvision, int width, int height);
f2242ee5
TM		 484static void usbvision_empty_framequeues(struct usb_usbvision *dev);
485static int usbvision_stream_interrupt(struct usb_usbvision *dev);
18d8a454 486static void call_i2c_clients(struct usb_usbvision *usbvision, unsigned int cmd, void *arg);
781aa1d1
MCC		 487
488
489// Bit flags (options)
490#define FLAGS_RETRY_VIDIOCSYNC (1 << 0)
491#define FLAGS_MONOCHROME (1 << 1)
492#define FLAGS_DISPLAY_HINTS (1 << 2)
493#define FLAGS_OSD_STATS (1 << 3)
494#define FLAGS_FORCE_TESTPATTERN (1 << 4)
495#define FLAGS_SEPARATE_FRAMES (1 << 5)
496#define FLAGS_CLEAN_FRAMES (1 << 6)
497
498// Default initalization of device driver parameters
499static int flags = 0; // Set the default Overlay Display mode of the device driver
500static int debug = 0; // Set the default Debug Mode of the device driver
501static int isocMode = ISOC_MODE_COMPRESS; // Set the default format for ISOC endpoint
502static int adjustCompression = 1; // Set the compression to be adaptive
503static int dga = 1; // Set the default Direct Graphic Access
504static int PowerOnAtOpen = 1; // Set the default device to power on at startup
505static int SwitchSVideoInput = 0; // To help people with Black and White output with using s-video input. Some cables and input device are wired differently.
18d8a454
DG		 506static int video_nr = -1; // Sequential Number of Video Device
507static int radio_nr = -1; // Sequential Number of Radio Device
781aa1d1
MCC		 508static int vbi_nr = -1; // Sequential Number of VBI Device
509static char *CustomDevice=NULL; // Set as nothing....
510
511// Grab parameters for the device driver
512
513#if defined(module_param) // Showing parameters under SYSFS
514module_param(flags, int, 0444);
515module_param(debug, int, 0444);
516module_param(isocMode, int, 0444);
517module_param(adjustCompression, int, 0444);
518module_param(dga, int, 0444);
519module_param(PowerOnAtOpen, int, 0444);
520module_param(SwitchSVideoInput, int, 0444);
521module_param(video_nr, int, 0444);
522module_param(radio_nr, int, 0444);
523module_param(vbi_nr, int, 0444);
524module_param(CustomDevice, charp, 0444);
525#else // Old Style
526MODULE_PARM(flags, "i"); // Grab the Overlay Display mode of the device driver
527MODULE_PARM(debug, "i"); // Grab the Debug Mode of the device driver
528MODULE_PARM(isocMode, "i"); // Grab the video format of the video device
529MODULE_PARM(adjustCompression, "i"); // Grab the compression to be adaptive
530MODULE_PARM(dga, "i"); // Grab the Direct Graphic Access
531MODULE_PARM(PowerOnAtOpen, "i"); // Grab the device to power on at startup
532MODULE_PARM(SwitchSVideoInput, "i"); // To help people with Black and White output with using s-video input. Some cables and input device are wired differently.
18d8a454 533MODULE_PARM(video_nr, "i"); // video_nr option allows to specify a certain /dev/videoX device (like /dev/video0 or /dev/video1 ...)
781aa1d1
MCC		 534MODULE_PARM(radio_nr, "i"); // radio_nr option allows to specify a certain /dev/radioX device (like /dev/radio0 or /dev/radio1 ...)
535MODULE_PARM(vbi_nr, "i"); // vbi_nr option allows to specify a certain /dev/vbiX device (like /dev/vbi0 or /dev/vbi1 ...)
18d8a454 536MODULE_PARM(CustomDevice, "s"); // .... CustomDevice
781aa1d1
MCC		 537#endif
538
539MODULE_PARM_DESC(flags, " Set the default Overlay Display mode of the device driver. Default: 0 (Off)");
540MODULE_PARM_DESC(debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)");
541MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)");
542MODULE_PARM_DESC(adjustCompression, " Set the ADPCM compression for the device. Default: 1 (On)");
543MODULE_PARM_DESC(dga, " Set the Direct Graphic Access for the device. Default: 1 (On)");
544MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)");
545MODULE_PARM_DESC(SwitchSVideoInput, " Set the S-Video input. Some cables and input device are wired differently. Default: 0 (Off)");
546MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)");
547MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)");
548MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)");
549MODULE_PARM_DESC(CustomDevice, " Define the fine tuning parameters for the device. Default: null");
550
551
552// Misc stuff
553MODULE_AUTHOR(DRIVER_AUTHOR);
554MODULE_DESCRIPTION(DRIVER_DESC);
555MODULE_LICENSE(DRIVER_LICENSE);
556 MODULE_VERSION(DRIVER_VERSION);
18d8a454 557 MODULE_ALIAS(DRIVER_ALIAS);
781aa1d1
MCC		 558
559#ifdef MODULE
560static unsigned int autoload = 1;
561#else
562static unsigned int autoload = 0;
563#endif
564
565
566/****************************************************************************************/
18d8a454
DG		 567/* SYSFS Code - Copied from the stv680.c usb module. */
568/* Device information is located at /sys/class/video4linux/video0 */
781aa1d1
MCC		 569/* Device parameters information is located at /sys/module/usbvision */
570/* Device USB Information is located at /sys/bus/usb/drivers/USBVision Video Grabber */
571/****************************************************************************************/
572
573
574#define YES_NO(x) ((x) ? "Yes" : "No")
575
576static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd)
577{
578 struct video_device *vdev = to_video_device(cd);
579 return video_get_drvdata(vdev);
580}
581
582static ssize_t show_version(struct class_device *cd, char *buf)
583{
584 return sprintf(buf, "%s\n", DRIVER_VERSION);
18d8a454 585}
781aa1d1
MCC		 586static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
587
588static ssize_t show_model(struct class_device *class_dev, char *buf)
589{
18d8a454
DG		 590 struct video_device *vdev = to_video_device(class_dev);
591 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
781aa1d1 592 return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString);
18d8a454 593}
781aa1d1
MCC		 594static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
595
596static ssize_t show_hue(struct class_device *class_dev, char *buf)
597{
18d8a454
DG		 598 struct video_device *vdev = to_video_device(class_dev);
599 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
781aa1d1 600 return sprintf(buf, "%d\n", usbvision->hue >> 8);
18d8a454 601}
781aa1d1
MCC		 602static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
603
604static ssize_t show_contrast(struct class_device *class_dev, char *buf)
605{
18d8a454
DG		 606 struct video_device *vdev = to_video_device(class_dev);
607 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
781aa1d1 608 return sprintf(buf, "%d\n", usbvision->contrast >> 8);
18d8a454 609}
781aa1d1
MCC		 610static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
611
612static ssize_t show_brightness(struct class_device *class_dev, char *buf)
613{
18d8a454
DG		 614 struct video_device *vdev = to_video_device(class_dev);
615 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
781aa1d1 616 return sprintf(buf, "%d\n", usbvision->brightness >> 8);
18d8a454 617}
781aa1d1
MCC		 618static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
619
620static ssize_t show_saturation(struct class_device *class_dev, char *buf)
621{
18d8a454
DG		 622 struct video_device *vdev = to_video_device(class_dev);
623 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
781aa1d1 624 return sprintf(buf, "%d\n", usbvision->saturation >> 8);
18d8a454 625}
781aa1d1
MCC		 626static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
627
628static ssize_t show_streaming(struct class_device *class_dev, char *buf)
629{
18d8a454
DG		 630 struct video_device *vdev = to_video_device(class_dev);
631 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
f2242ee5 632 return sprintf(buf, "%s\n", YES_NO(usbvision->streaming==Stream_On?1:0));
18d8a454 633}
781aa1d1
MCC		 634static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
635
636static ssize_t show_overlay(struct class_device *class_dev, char *buf)
637{
18d8a454
DG		 638 struct video_device *vdev = to_video_device(class_dev);
639 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
781aa1d1 640 return sprintf(buf, "%s\n", YES_NO(usbvision->overlay));
18d8a454 641}
781aa1d1
MCC		 642static CLASS_DEVICE_ATTR(overlay, S_IRUGO, show_overlay, NULL);
643
644static ssize_t show_compression(struct class_device *class_dev, char *buf)
645{
18d8a454
DG		 646 struct video_device *vdev = to_video_device(class_dev);
647 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
781aa1d1 648 return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
18d8a454 649}
781aa1d1
MCC		 650static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
651
652static ssize_t show_device_bridge(struct class_device *class_dev, char *buf)
653{
18d8a454
DG		 654 struct video_device *vdev = to_video_device(class_dev);
655 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
781aa1d1 656 return sprintf(buf, "%d\n", usbvision->bridgeType);
18d8a454 657}
781aa1d1
MCC		 658static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
659
660static void usbvision_create_sysfs(struct video_device *vdev)
661{
f2242ee5 662 int res;
781aa1d1 663 if (vdev) {
f2242ee5
TM		 664 res=video_device_create_file(vdev, &class_device_attr_version);
665 res=video_device_create_file(vdev, &class_device_attr_model);
666 res=video_device_create_file(vdev, &class_device_attr_hue);
667 res=video_device_create_file(vdev, &class_device_attr_contrast);
668 res=video_device_create_file(vdev, &class_device_attr_brightness);
669 res=video_device_create_file(vdev, &class_device_attr_saturation);
670 res=video_device_create_file(vdev, &class_device_attr_streaming);
671 res=video_device_create_file(vdev, &class_device_attr_overlay);
672 res=video_device_create_file(vdev, &class_device_attr_compression);
673 res=video_device_create_file(vdev, &class_device_attr_bridge);
781aa1d1
MCC		 674 }
675}
676
677static void usbvision_remove_sysfs(struct video_device *vdev)
678{
679 if (vdev) {
680 video_device_remove_file(vdev, &class_device_attr_version);
681 video_device_remove_file(vdev, &class_device_attr_model);
682 video_device_remove_file(vdev, &class_device_attr_hue);
683 video_device_remove_file(vdev, &class_device_attr_contrast);
684 video_device_remove_file(vdev, &class_device_attr_brightness);
685 video_device_remove_file(vdev, &class_device_attr_saturation);
686 video_device_remove_file(vdev, &class_device_attr_streaming);
687 video_device_remove_file(vdev, &class_device_attr_overlay);
688 video_device_remove_file(vdev, &class_device_attr_compression);
689 video_device_remove_file(vdev, &class_device_attr_bridge);
690 }
691}
692
693
694/*******************************/
695/* Memory management functions */
696/*******************************/
697
698/*
699 * Here we want the physical address of the memory.
700 * This is used when initializing the contents of the area.
701 */
702
703
704void *usbvision_rvmalloc(unsigned long size)
705{
706 void *mem;
707 unsigned long adr;
708
709 size = PAGE_ALIGN(size);
710 mem = vmalloc_32(size);
711 if (!mem)
712 return NULL;
713
714 memset(mem, 0, size); /* Clear the ram out, no junk to the user */
715 adr = (unsigned long) mem;
716 while (size > 0) {
717 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
718 mem_map_reserve(vmalloc_to_page((void *)adr));
719 #else
720 SetPageReserved(vmalloc_to_page((void *)adr));
721 #endif
722 adr += PAGE_SIZE;
723 size -= PAGE_SIZE;
724 }
725
726 return mem;
727}
728
729void usbvision_rvfree(void *mem, unsigned long size)
730{
731 unsigned long adr;
732
733 if (!mem)
734 return;
735
736 adr = (unsigned long) mem;
737 while ((long) size > 0) {
738 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
739 mem_map_unreserve(vmalloc_to_page((void *)adr));
740 #else
741 ClearPageReserved(vmalloc_to_page((void *)adr));
742 #endif
743 adr += PAGE_SIZE;
744 size -= PAGE_SIZE;
745 }
746 vfree(mem);
747}
748
749
750
751
752
753
754#if ENABLE_HEXDUMP
755static void usbvision_hexdump(const unsigned char *data, int len)
756{
757 char tmp[80];
758 int i, k;
759
760 for (i = k = 0; len > 0; i++, len--) {
761 if (i > 0 && (i % 16 == 0)) {
762 printk("%s\n", tmp);
763 k = 0;
764 }
765 k += sprintf(&tmp[k], "%02x ", data[i]);
766 }
767 if (k > 0)
768 printk("%s\n", tmp);
769}
770#endif
771
772
773/* These procedures handle the scratch ring buffer */
774int scratch_len(struct usb_usbvision *usbvision) /*This returns the amount of data actually in the buffer */
775{
776 int len = usbvision->scratch_write_ptr - usbvision->scratch_read_ptr;
777 if (len < 0) {
778 len += scratch_buf_size;
779 }
780 PDEBUG(DBG_SCRATCH, "scratch_len() = %d\n", len);
781
782 return len;
783}
784
785
786/* This returns the free space left in the buffer */
787int scratch_free(struct usb_usbvision *usbvision)
788{
789 int free = usbvision->scratch_read_ptr - usbvision->scratch_write_ptr;
790 if (free <= 0) {
791 free += scratch_buf_size;
792 }
793 if (free) {
794 free -= 1; /* at least one byte in the buffer must */
795 /* left blank, otherwise there is no chance to differ between full and empty */
796 }
797 PDEBUG(DBG_SCRATCH, "return %d\n", free);
798
799 return free;
800}
801
802
803void *debug_memcpy(void *dest, void *src, size_t len)
804{
805 printk(KERN_DEBUG "memcpy(%p, %p, %d);\n", dest, src, len);
806 return memcpy(dest, src, len);
807}
808
809
810/* This puts data into the buffer */
811int scratch_put(struct usb_usbvision *usbvision, unsigned char *data, int len)
812{
813 int len_part;
814
815 if (usbvision->scratch_write_ptr + len < scratch_buf_size) {
816 memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len);
817 usbvision->scratch_write_ptr += len;
818 }
819 else {
820 len_part = scratch_buf_size - usbvision->scratch_write_ptr;
821 memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len_part);
822 if (len == len_part) {
823 usbvision->scratch_write_ptr = 0; /* just set write_ptr to zero */
824 }
825 else {
826 memcpy(usbvision->scratch, data + len_part, len - len_part);
827 usbvision->scratch_write_ptr = len - len_part;
828 }
829 }
830
831 PDEBUG(DBG_SCRATCH, "len=%d, new write_ptr=%d\n", len, usbvision->scratch_write_ptr);
832
833 return len;
834}
835
836/* This marks the write_ptr as position of new frame header */
837void scratch_mark_header(struct usb_usbvision *usbvision)
838{
839 PDEBUG(DBG_SCRATCH, "header at write_ptr=%d\n", usbvision->scratch_headermarker_write_ptr);
840
841 usbvision->scratch_headermarker[usbvision->scratch_headermarker_write_ptr] =
842 usbvision->scratch_write_ptr;
843 usbvision->scratch_headermarker_write_ptr += 1;
844 usbvision->scratch_headermarker_write_ptr %= USBVISION_NUM_HEADERMARKER;
845}
846
847/* This gets data from the buffer at the given "ptr" position */
848int scratch_get_extra(struct usb_usbvision *usbvision, unsigned char *data, int *ptr, int len)
849{
850 int len_part;
851 if (*ptr + len < scratch_buf_size) {
852 memcpy(data, usbvision->scratch + *ptr, len);
853 *ptr += len;
854 }
855 else {
856 len_part = scratch_buf_size - *ptr;
857 memcpy(data, usbvision->scratch + *ptr, len_part);
858 if (len == len_part) {
859 *ptr = 0; /* just set the y_ptr to zero */
860 }
861 else {
862 memcpy(data + len_part, usbvision->scratch, len - len_part);
863 *ptr = len - len_part;
864 }
865 }
866
867 PDEBUG(DBG_SCRATCH, "len=%d, new ptr=%d\n", len, *ptr);
868
869 return len;
870}
871
872
873/* This sets the scratch extra read pointer */
874void scratch_set_extra_ptr(struct usb_usbvision *usbvision, int *ptr, int len)
875{
876 *ptr = (usbvision->scratch_read_ptr + len)%scratch_buf_size;
877
878 PDEBUG(DBG_SCRATCH, "ptr=%d\n", *ptr);
879}
880
881
882/*This increments the scratch extra read pointer */
883void scratch_inc_extra_ptr(int *ptr, int len)
884{
885 *ptr = (*ptr + len) % scratch_buf_size;
886
887 PDEBUG(DBG_SCRATCH, "ptr=%d\n", *ptr);
888}
889
890
891/* This gets data from the buffer */
892int scratch_get(struct usb_usbvision *usbvision, unsigned char *data, int len)
893{
894 int len_part;
895 if (usbvision->scratch_read_ptr + len < scratch_buf_size) {
896 memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len);
897 usbvision->scratch_read_ptr += len;
898 }
899 else {
900 len_part = scratch_buf_size - usbvision->scratch_read_ptr;
901 memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len_part);
902 if (len == len_part) {
903 usbvision->scratch_read_ptr = 0; /* just set the read_ptr to zero */
904 }
905 else {
906 memcpy(data + len_part, usbvision->scratch, len - len_part);
907 usbvision->scratch_read_ptr = len - len_part;
908 }
909 }
910
911 PDEBUG(DBG_SCRATCH, "len=%d, new read_ptr=%d\n", len, usbvision->scratch_read_ptr);
912
913 return len;
914}
915
916
917/* This sets read pointer to next header and returns it */
918int scratch_get_header(struct usb_usbvision *usbvision,struct usbvision_frame_header *header)
919{
920 int errCode = 0;
921
922 PDEBUG(DBG_SCRATCH, "from read_ptr=%d", usbvision->scratch_headermarker_read_ptr);
923
924 while (usbvision->scratch_headermarker_write_ptr -
925 usbvision->scratch_headermarker_read_ptr != 0) {
926 usbvision->scratch_read_ptr =
927 usbvision->scratch_headermarker[usbvision->scratch_headermarker_read_ptr];
928 usbvision->scratch_headermarker_read_ptr += 1;
929 usbvision->scratch_headermarker_read_ptr %= USBVISION_NUM_HEADERMARKER;
930 scratch_get(usbvision, (unsigned char *)header, USBVISION_HEADER_LENGTH);
931 if ((header->magic_1 == USBVISION_MAGIC_1)
932 && (header->magic_2 == USBVISION_MAGIC_2)
933 && (header->headerLength == USBVISION_HEADER_LENGTH)) {
934 errCode = USBVISION_HEADER_LENGTH;
935 header->frameWidth = header->frameWidthLo + (header->frameWidthHi << 8);
936 header->frameHeight = header->frameHeightLo + (header->frameHeightHi << 8);
937 break;
938 }
939 }
940
941 return errCode;
942}
943
944
945/*This removes len bytes of old data from the buffer */
946void scratch_rm_old(struct usb_usbvision *usbvision, int len)
947{
948
949 usbvision->scratch_read_ptr += len;
950 usbvision->scratch_read_ptr %= scratch_buf_size;
951 PDEBUG(DBG_SCRATCH, "read_ptr is now %d\n", usbvision->scratch_read_ptr);
952}
953
954
955/*This resets the buffer - kills all data in it too */
956void scratch_reset(struct usb_usbvision *usbvision)
957{
958 PDEBUG(DBG_SCRATCH, "\n");
959
960 usbvision->scratch_read_ptr = 0;
961 usbvision->scratch_write_ptr = 0;
962 usbvision->scratch_headermarker_read_ptr = 0;
963 usbvision->scratch_headermarker_write_ptr = 0;
964 usbvision->isocstate = IsocState_NoFrame;
965}
966
967
968
969/* Here comes the OVERLAY stuff */
970
971/* Tell the interrupt handler what to to. */
972static
973void usbvision_cap(struct usb_usbvision* usbvision, int on)
974{
975 DEBUG(printk(KERN_DEBUG "usbvision_cap: overlay was %d, set it to %d\n", usbvision->overlay, on);)
976
977 if (on) {
978 usbvision->overlay = 1;
979 }
980 else {
981 usbvision->overlay = 0;
982 }
983}
984
985
986
987
988/* append a new clipregion to the vector of video_clips */
989static
990void usbvision_new_clip(struct v4l2_format* vf, struct v4l2_clip* vcp, int x, int y, int w, int h)
991{
992 vcp[vf->fmt.win.clipcount].c.left = x;
993 vcp[vf->fmt.win.clipcount].c.top = y;
994 vcp[vf->fmt.win.clipcount].c.width = w;
995 vcp[vf->fmt.win.clipcount].c.height = h;
996 vf->fmt.win.clipcount++;
997}
998
999
1000#define mark_pixel(x,y) usbvision->clipmask[((x) + (y) * MAX_FRAME_WIDTH)/32] |= 0x00000001<<((x)%32)
1001#define clipped_pixel(index) usbvision->clipmask[(index)/32] & (0x00000001<<((index)%32))
1002
1003static
1004void usbvision_built_overlay(struct usb_usbvision* usbvision, int count, struct v4l2_clip *vcp)
1005{
1006 usbvision->overlay_win = usbvision->overlay_base +
1007 (signed int)usbvision->vid_win.fmt.win.w.left * usbvision->depth / 8 +
1008 (signed int)usbvision->vid_win.fmt.win.w.top * usbvision->vid_buf.fmt.bytesperline;
1009
1010 IODEBUG(printk(KERN_DEBUG "built_overlay base=%p, win=%p, bpl=%d, clips=%d, size=%dx%d\n",
1011 usbvision->overlay_base, usbvision->overlay_win,
1012 usbvision->vid_buf.fmt.bytesperline, count,
1013 usbvision->vid_win.fmt.win.w.width, usbvision->vid_win.fmt.win.w.height);)
1014
1015
1016 /* Add here generation of clipping mask */
1017{
1018 int x_start, x_end, y_start, y_end;
1019 int clip_index, x, y;
1020
1021 memset(usbvision->clipmask, 0, USBVISION_CLIPMASK_SIZE);
1022
1023 OVDEBUG(printk(KERN_DEBUG "clips = %d\n", count);)
1024
1025 for(clip_index = 0; clip_index < count; clip_index++) {
1026 OVDEBUG(printk(KERN_DEBUG "clip: %d,%d,%d,%d\n", vcp[clip_index].x,
1027 vcp[clip_index].y,
1028 vcp[clip_index].width,
1029 vcp[clip_index].height);)
1030
1031 x_start = vcp[clip_index].c.left;
1032 if(x_start >= (int)usbvision->vid_win.fmt.win.w.width) {
1033 OVDEBUG(printk(KERN_DEBUG "x_start=%d\n", x_start);)
1034 continue; //clipping window is right of overlay window
1035 }
1036 x_end = x_start + vcp[clip_index].c.width;
1037 if(x_end <= 0) {
1038 OVDEBUG(printk(KERN_DEBUG "x_end=%d\n", x_end);)
1039 continue; //clipping window is left of overlay window
1040 }
1041
1042 y_start = vcp[clip_index].c.top;
1043 if(y_start >= (int)usbvision->vid_win.fmt.win.w.height) {
1044 OVDEBUG(printk(KERN_DEBUG "y_start=%d\n", y_start);)
1045 continue; //clipping window is below overlay window
1046 }
1047 y_end = y_start + vcp[clip_index].c.height;
1048 if(y_end <= 0) {
1049 OVDEBUG(printk(KERN_DEBUG "y_end=%d\n", y_end);)
1050 continue; //clipping window is above overlay window
1051 }
1052
1053 //clip the clipping window
1054 if (x_start < 0) {
1055 x_start = 0;
1056 }
1057 if (x_end > (int)usbvision->vid_win.fmt.win.w.width) {
1058 x_end = (int)usbvision->vid_win.fmt.win.w.width;
1059 }
1060 if (y_start < 0) {
1061 y_start = 0;
1062 }
1063 if (y_end > (int)usbvision->vid_win.fmt.win.w.height) {
1064 y_end = (int)usbvision->vid_win.fmt.win.w.height;
1065 }
1066
1067 OVDEBUG(printk(KERN_DEBUG "clip_o: %d,%d,%d,%d\n", x_start, y_start, x_end, y_end);)
1068
1069
1070
1071 for(y = y_start; y < y_end; y++) {
1072 for(x = x_start; x < x_end; x++) {
1073 mark_pixel(x,y);
1074 }
1075 }
1076 }
1077}
1078
1079}
1080
1081
1082
1083void usbvision_osd_char(struct usb_usbvision *usbvision,
1084 struct usbvision_frame *frame, int x, int y, int ch)
1085{
1086 static const unsigned short digits[16] = {
1087 0xF6DE, /* 0 */
1088 0x2492, /* 1 */
1089 0xE7CE, /* 2 */
1090 0xE79E, /* 3 */
1091 0xB792, /* 4 */
1092 0xF39E, /* 5 */
1093 0xF3DE, /* 6 */
1094 0xF492, /* 7 */
1095 0xF7DE, /* 8 */
1096 0xF79E, /* 9 */
1097 0x77DA, /* a */
1098 0xD75C, /* b */
1099 0xF24E, /* c */
1100 0xD6DC, /* d */
1101 0xF34E, /* e */
1102 0xF348 /* f */
1103 };
1104 unsigned short digit;
1105 int ix, iy;
1106
1107 if ((usbvision == NULL) || (frame == NULL))
1108 return;
1109
1110 if (ch >= '0' && ch <= '9')
1111 ch -= '0';
1112 else if (ch >= 'A' && ch <= 'F')
1113 ch = 10 + (ch - 'A');
1114 else if (ch >= 'a' && ch <= 'f')
1115 ch = 10 + (ch - 'a');
1116 else
1117 return;
1118 digit = digits[ch];
1119
1120 for (iy = 0; iy < 5; iy++) {
1121 for (ix = 0; ix < 3; ix++) {
1122 if (digit & 0x8000) {
1123 // USBVISION_PUTPIXEL(frame, x + ix, y + iy,
1124 // 0xFF, 0xFF, 0xFF);
1125 }
1126 digit = digit << 1;
1127 }
1128 }
1129}
1130
1131
1132void usbvision_osd_string(struct usb_usbvision *usbvision,
1133 struct usbvision_frame *frame,
1134 int x, int y, const char *str)
1135{
1136 while (*str) {
1137 usbvision_osd_char(usbvision, frame, x, y, *str);
1138 str++;
1139 x += 4; /* 3 pixels character + 1 space */
1140 }
1141}
1142
1143/*
1144 * usb_usbvision_osd_stats()
1145 *
1146 * On screen display of important debugging information.
1147 *
1148 */
1149void usbvision_osd_stats(struct usb_usbvision *usbvision,
1150 struct usbvision_frame *frame)
1151{
1152 const int y_diff = 8;
1153 char tmp[16];
1154 int x = 10;
1155 int y = 10;
1156
1157 sprintf(tmp, "%8x", usbvision->frame_num);
1158 usbvision_osd_string(usbvision, frame, x, y, tmp);
1159 y += y_diff;
1160
1161 sprintf(tmp, "%8lx", usbvision->isocUrbCount);
1162 usbvision_osd_string(usbvision, frame, x, y, tmp);
1163 y += y_diff;
1164
1165 sprintf(tmp, "%8lx", usbvision->urb_length);
1166 usbvision_osd_string(usbvision, frame, x, y, tmp);
1167 y += y_diff;
1168
1169 sprintf(tmp, "%8lx", usbvision->isocDataCount);
1170 usbvision_osd_string(usbvision, frame, x, y, tmp);
1171 y += y_diff;
1172
1173 sprintf(tmp, "%8lx", usbvision->header_count);
1174 usbvision_osd_string(usbvision, frame, x, y, tmp);
1175 y += y_diff;
1176
1177 sprintf(tmp, "%8lx", usbvision->scratch_ovf_count);
1178 usbvision_osd_string(usbvision, frame, x, y, tmp);
1179 y += y_diff;
1180
1181 sprintf(tmp, "%8lx", usbvision->isocSkipCount);
1182 usbvision_osd_string(usbvision, frame, x, y, tmp);
1183 y += y_diff;
1184
1185 sprintf(tmp, "%8lx", usbvision->isocErrCount);
1186 usbvision_osd_string(usbvision, frame, x, y, tmp);
1187 y += y_diff;
1188
1189 sprintf(tmp, "%8x", usbvision->saturation);
1190 usbvision_osd_string(usbvision, frame, x, y, tmp);
1191 y += y_diff;
1192
1193 sprintf(tmp, "%8x", usbvision->hue);
1194 usbvision_osd_string(usbvision, frame, x, y, tmp);
1195 y += y_diff;
1196
1197 sprintf(tmp, "%8x", usbvision->brightness >> 8);
1198 usbvision_osd_string(usbvision, frame, x, y, tmp);
1199 y += y_diff;
1200
1201 sprintf(tmp, "%8x", usbvision->contrast >> 12);
1202 usbvision_osd_string(usbvision, frame, x, y, tmp);
1203 y += y_diff;
1204
1205}
1206
1207/*
1208 * usbvision_testpattern()
1209 *
1210 * Procedure forms a test pattern (yellow grid on blue background).
1211 *
1212 * Parameters:
1213 * fullframe: if TRUE then entire frame is filled, otherwise the procedure
18d8a454 1214 * continues from the current scanline.
781aa1d1 1215 * pmode 0: fill the frame with solid blue color (like on VCR or TV)
18d8a454 1216 * 1: Draw a colored grid
781aa1d1
MCC		 1217 *
1218 */
1219void usbvision_testpattern(struct usb_usbvision *usbvision, int fullframe,
1220 int pmode)
1221{
1222 static const char proc[] = "usbvision_testpattern";
1223 struct usbvision_frame *frame;
1224 unsigned char *f;
1225 int num_cell = 0;
1226 int scan_length = 0;
1227 static int num_pass = 0;
1228
1229 if (usbvision == NULL) {
1230 printk(KERN_ERR "%s: usbvision == NULL\n", proc);
1231 return;
1232 }
f2242ee5
TM		 1233 if (usbvision->curFrame == NULL) {
1234 printk(KERN_ERR "%s: usbvision->curFrame is NULL.\n", proc);
781aa1d1
MCC		 1235 return;
1236 }
1237
1238 /* Grab the current frame */
f2242ee5 1239 frame = usbvision->curFrame;
781aa1d1
MCC		 1240
1241 /* Optionally start at the beginning */
1242 if (fullframe) {
1243 frame->curline = 0;
1244 frame->scanlength = 0;
1245 }
1246
1247 /* Form every scan line */
1248 for (; frame->curline < frame->frmheight; frame->curline++) {
1249 int i;
1250
1251 f = frame->data + (usbvision->curwidth * 3 * frame->curline);
1252 for (i = 0; i < usbvision->curwidth; i++) {
1253 unsigned char cb = 0x80;
1254 unsigned char cg = 0;
1255 unsigned char cr = 0;
1256
1257 if (pmode == 1) {
1258 if (frame->curline % 32 == 0)
1259 cb = 0, cg = cr = 0xFF;
1260 else if (i % 32 == 0) {
1261 if (frame->curline % 32 == 1)
1262 num_cell++;
1263 cb = 0, cg = cr = 0xFF;
1264 } else {
1265 cb =
1266 ((num_cell * 7) +
1267 num_pass) & 0xFF;
1268 cg =
1269 ((num_cell * 5) +
1270 num_pass * 2) & 0xFF;
1271 cr =
1272 ((num_cell * 3) +
1273 num_pass * 3) & 0xFF;
1274 }
1275 } else {
1276 /* Just the blue screen */
1277 }
1278
1279 *f++ = cb;
1280 *f++ = cg;
1281 *f++ = cr;
1282 scan_length += 3;
1283 }
1284 }
1285
1286 frame->grabstate = FrameState_Done;
1287 frame->scanlength += scan_length;
1288 ++num_pass;
1289
1290 /* We do this unconditionally, regardless of FLAGS_OSD_STATS */
1291 usbvision_osd_stats(usbvision, frame);
1292}
1293
1294/*
1295 * Here comes the data parsing stuff that is run as interrupt
1296 */
1297
1298/*
1299 * usbvision_find_header()
1300 *
1301 * Locate one of supported header markers in the scratch buffer.
1302 */
1303static enum ParseState usbvision_find_header(struct usb_usbvision *usbvision)
1304{
1305 struct usbvision_frame *frame;
1306 int foundHeader = 0;
1307
1308 if (usbvision->overlay) {
1309 frame = &usbvision->overlay_frame;
1310 }
1311 else {
f2242ee5 1312 frame = usbvision->curFrame;
781aa1d1
MCC		 1313 }
1314
1315 while (scratch_get_header(usbvision, &frame->isocHeader) == USBVISION_HEADER_LENGTH) {
1316 // found header in scratch
1317 PDEBUG(DBG_HEADER, "found header: 0x%02x%02x %d %d %d %d %#x 0x%02x %u %u",
1318 frame->isocHeader.magic_2,
1319 frame->isocHeader.magic_1,
1320 frame->isocHeader.headerLength,
1321 frame->isocHeader.frameNum,
1322 frame->isocHeader.framePhase,
1323 frame->isocHeader.frameLatency,
1324 frame->isocHeader.dataFormat,
1325 frame->isocHeader.formatParam,
1326 frame->isocHeader.frameWidth,
1327 frame->isocHeader.frameHeight);
1328
1329 if (usbvision->requestIntra) {
1330 if (frame->isocHeader.formatParam & 0x80) {
1331 foundHeader = 1;
1332 usbvision->lastIsocFrameNum = -1; // do not check for lost frames this time
1333 usbvision_unrequest_intra(usbvision);
1334 break;
1335 }
1336 }
1337 else {
1338 foundHeader = 1;
1339 break;
1340 }
1341 }
1342
1343 if (foundHeader) {
1344 frame->frmwidth = frame->isocHeader.frameWidth * usbvision->stretch_width;
1345 frame->frmheight = frame->isocHeader.frameHeight * usbvision->stretch_height;
1346 frame->v4l2_linesize = (frame->frmwidth * frame->v4l2_format.depth)>> 3;
781aa1d1
MCC		 1347 }
1348 else { // no header found
1349 PDEBUG(DBG_HEADER, "skipping scratch data, no header");
1350 scratch_reset(usbvision);
1351 return ParseState_EndParse;
1352 }
1353
1354 // found header
1355 if (frame->isocHeader.dataFormat==ISOC_MODE_COMPRESS) {
1356 //check isocHeader.frameNum for lost frames
1357 if (usbvision->lastIsocFrameNum >= 0) {
1358 if (((usbvision->lastIsocFrameNum + 1) % 32) != frame->isocHeader.frameNum) {
1359 // unexpected frame drop: need to request new intra frame
1360 PDEBUG(DBG_HEADER, "Lost frame before %d on USB", frame->isocHeader.frameNum);
1361 usbvision_request_intra(usbvision);
1362 return ParseState_NextFrame;
1363 }
1364 }
1365 usbvision->lastIsocFrameNum = frame->isocHeader.frameNum;
1366 }
1367 usbvision->header_count++;
1368 frame->scanstate = ScanState_Lines;
1369 frame->curline = 0;
1370
1371 if (flags & FLAGS_FORCE_TESTPATTERN) {
1372 usbvision_testpattern(usbvision, 1, 1);
1373 return ParseState_NextFrame;
1374 }
1375 return ParseState_Continue;
1376}
1377
1378static enum ParseState usbvision_parse_lines_422(struct usb_usbvision *usbvision,
1379 long *pcopylen)
1380{
1381 volatile struct usbvision_frame *frame;
1382 unsigned char *f;
1383 int len;
1384 int i;
1385 unsigned char yuyv[4]={180, 128, 10, 128}; // YUV components
1386 unsigned char rv, gv, bv; // RGB components
1387 int clipmask_index, bytes_per_pixel;
1388 int overlay = usbvision->overlay;
1389 int stretch_bytes, clipmask_add;
1390
1391 if (overlay) {
1392 frame = &usbvision->overlay_frame;
1393 if (usbvision->overlay_base == NULL) {
1394 //video_buffer is not set yet
1395 return ParseState_NextFrame;
1396 }
1397 f = usbvision->overlay_win + frame->curline *
1398 usbvision->vid_buf.fmt.bytesperline;
1399 }
1400 else {
f2242ee5 1401 frame = usbvision->curFrame;
781aa1d1
MCC		 1402 f = frame->data + (frame->v4l2_linesize * frame->curline);
1403 }
1404
1405 /* Make sure there's enough data for the entire line */
1406 len = (frame->isocHeader.frameWidth * 2)+5;
1407 if (scratch_len(usbvision) < len) {
1408 PDEBUG(DBG_PARSE, "out of data in line %d, need %u.\n", frame->curline, len);
1409 return ParseState_Out;
1410 }
1411
1412 if ((frame->curline + 1) >= frame->frmheight) {
1413 return ParseState_NextFrame;
1414 }
1415
1416 bytes_per_pixel = frame->v4l2_format.bytes_per_pixel;
1417 stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel;
1418 clipmask_index = frame->curline * MAX_FRAME_WIDTH;
1419 clipmask_add = usbvision->stretch_width;
1420
1421 for (i = 0; i < frame->frmwidth; i+=(2 * usbvision->stretch_width)) {
1422
1423 scratch_get(usbvision, &yuyv[0], 4);
1424
1425 if((overlay) && (clipped_pixel(clipmask_index))) {
1426 f += bytes_per_pixel;
1427 }
1428 else if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
1429 *f++ = yuyv[0]; // Y
1430 *f++ = yuyv[3]; // U
1431 }
1432 else {
1433
1434 YUV_TO_RGB_BY_THE_BOOK(yuyv[0], yuyv[1], yuyv[3], rv, gv, bv);
1435 switch (frame->v4l2_format.format) {
1436 case V4L2_PIX_FMT_RGB565:
1437 *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 3));
1438 *f++ = (0x07 & (gv >> 5)) | (0xF8 & rv);
1439 break;
1440 case V4L2_PIX_FMT_RGB24:
1441 *f++ = bv;
1442 *f++ = gv;
1443 *f++ = rv;
1444 break;
1445 case V4L2_PIX_FMT_RGB32:
1446 *f++ = bv;
1447 *f++ = gv;
1448 *f++ = rv;
1449 f++;
1450 break;
1451 case V4L2_PIX_FMT_RGB555:
1452 *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 2));
1453 *f++ = (0x03 & (gv >> 6)) | (0x7C & (rv >> 1));
1454 break;
1455 }
1456 }
1457 clipmask_index += clipmask_add;
1458 f += stretch_bytes;
1459
1460 if((overlay) && (clipped_pixel(clipmask_index))) {
1461 f += bytes_per_pixel;
1462 }
1463 else if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
1464 *f++ = yuyv[2]; // Y
1465 *f++ = yuyv[1]; // V
1466 }
1467 else {
1468
1469 YUV_TO_RGB_BY_THE_BOOK(yuyv[2], yuyv[1], yuyv[3], rv, gv, bv);
1470 switch (frame->v4l2_format.format) {
1471 case V4L2_PIX_FMT_RGB565:
1472 *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 3));
1473 *f++ = (0x07 & (gv >> 5)) | (0xF8 & rv);
1474 break;
1475 case V4L2_PIX_FMT_RGB24:
1476 *f++ = bv;
1477 *f++ = gv;
1478 *f++ = rv;
1479 break;
1480 case V4L2_PIX_FMT_RGB32:
1481 *f++ = bv;
1482 *f++ = gv;
1483 *f++ = rv;
1484 f++;
1485 break;
1486 case V4L2_PIX_FMT_RGB555:
1487 *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 2));
1488 *f++ = (0x03 & (gv >> 6)) | (0x7C & (rv >> 1));
1489 break;
1490 }
1491 }
1492 clipmask_index += clipmask_add;
1493 f += stretch_bytes;
1494 }
1495
1496 frame->curline += usbvision->stretch_height;
1497 *pcopylen += frame->v4l2_linesize * usbvision->stretch_height;
1498
1499 if (frame->curline >= frame->frmheight) {
1500 return ParseState_NextFrame;
1501 }
1502 else {
1503 return ParseState_Continue;
1504 }
1505}
1506
1507
1508static int usbvision_decompress(struct usb_usbvision *usbvision,unsigned char *Compressed,
1509 unsigned char *Decompressed, int *StartPos,
1510 int *BlockTypeStartPos, int Len)
1511{
1512 int RestPixel, Idx, MaxPos, Pos, ExtraPos, BlockLen, BlockTypePos, BlockTypeLen;
1513 unsigned char BlockByte, BlockCode, BlockType, BlockTypeByte, Integrator;
1514
1515 Integrator = 0;
1516 Pos = *StartPos;
1517 BlockTypePos = *BlockTypeStartPos;
1518 MaxPos = 396; //Pos + Len;
1519 ExtraPos = Pos;
1520 BlockLen = 0;
1521 BlockByte = 0;
1522 BlockCode = 0;
1523 BlockType = 0;
1524 BlockTypeByte = 0;
1525 BlockTypeLen = 0;
1526 RestPixel = Len;
1527
1528 for (Idx = 0; Idx < Len; Idx++) {
1529
1530 if (BlockLen == 0) {
1531 if (BlockTypeLen==0) {
1532 BlockTypeByte = Compressed[BlockTypePos];
1533 BlockTypePos++;
1534 BlockTypeLen = 4;
1535 }
1536 BlockType = (BlockTypeByte & 0xC0) >> 6;
1537
1538 //statistic:
1539 usbvision->ComprBlockTypes[BlockType]++;
1540
1541 Pos = ExtraPos;
1542 if (BlockType == 0) {
1543 if(RestPixel >= 24) {
1544 Idx += 23;
1545 RestPixel -= 24;
1546 Integrator = Decompressed[Idx];
1547 } else {
1548 Idx += RestPixel - 1;
1549 RestPixel = 0;
1550 }
1551 } else {
1552 BlockCode = Compressed[Pos];
1553 Pos++;
1554 if (RestPixel >= 24) {
1555 BlockLen = 24;
1556 } else {
1557 BlockLen = RestPixel;
1558 }
1559 RestPixel -= BlockLen;
1560 ExtraPos = Pos + (BlockLen / 4);
1561 }
1562 BlockTypeByte <<= 2;
1563 BlockTypeLen -= 1;
1564 }
1565 if (BlockLen > 0) {
1566 if ((BlockLen%4) == 0) {
1567 BlockByte = Compressed[Pos];
1568 Pos++;
1569 }
1570 if (BlockType == 1) { //inter Block
1571 Integrator = Decompressed[Idx];
1572 }
1573 switch (BlockByte & 0xC0) {
1574 case 0x03<<6:
1575 Integrator += Compressed[ExtraPos];
1576 ExtraPos++;
1577 break;
1578 case 0x02<<6:
1579 Integrator += BlockCode;
1580 break;
1581 case 0x00:
1582 Integrator -= BlockCode;
1583 break;
1584 }
1585 Decompressed[Idx] = Integrator;
1586 BlockByte <<= 2;
1587 BlockLen -= 1;
1588 }
1589 }
1590 *StartPos = ExtraPos;
1591 *BlockTypeStartPos = BlockTypePos;
1592 return Idx;
1593}
1594
1595
1596/*
1597 * usbvision_parse_compress()
1598 *
1599 * Parse compressed frame from the scratch buffer, put
1600 * decoded RGB value into the current frame buffer and add the written
1601 * number of bytes (RGB) to the *pcopylen.
1602 *
1603 */
1604static enum ParseState usbvision_parse_compress(struct usb_usbvision *usbvision,
1605 long *pcopylen)
1606{
1607#define USBVISION_STRIP_MAGIC 0x5A
1608#define USBVISION_STRIP_LEN_MAX 400
1609#define USBVISION_STRIP_HEADER_LEN 3
1610
1611 struct usbvision_frame *frame;
1612 unsigned char *f,*u = NULL ,*v = NULL;
1613 unsigned char StripData[USBVISION_STRIP_LEN_MAX];
1614 unsigned char StripHeader[USBVISION_STRIP_HEADER_LEN];
1615 int Idx, IdxEnd, StripLen, StripPtr, StartBlockPos, BlockPos, BlockTypePos;
1616 int clipmask_index, bytes_per_pixel, rc;
1617 int overlay = usbvision->overlay;
1618 int imageSize;
1619 unsigned char rv, gv, bv;
1620 static unsigned char *Y, *U, *V;
1621
1622 if (overlay) {
1623 frame = &usbvision->overlay_frame;
18d8a454 1624 imageSize = frame->frmwidth * frame->frmheight;
781aa1d1
MCC		 1625 if (usbvision->overlay_base == NULL) {
1626 //video_buffer is not set yet
1627 return ParseState_NextFrame;
1628 }
1629 f = usbvision->overlay_win + frame->curline *
1630 usbvision->vid_buf.fmt.bytesperline;
1631 }
1632 else {
f2242ee5 1633 frame = usbvision->curFrame;
18d8a454 1634 imageSize = frame->frmwidth * frame->frmheight;
781aa1d1
MCC		 1635 if ( (frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) ||
1636 (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420) )
18d8a454
DG		 1637 { // this is a planar format
1638 //... v4l2_linesize not used here.
781aa1d1 1639 f = frame->data + (frame->width * frame->curline);
18d8a454 1640 } else
781aa1d1 1641 f = frame->data + (frame->v4l2_linesize * frame->curline);
18d8a454 1642
781aa1d1 1643 if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV){ //initialise u and v pointers
18d8a454
DG		 1644 // get base of u and b planes add halfoffset
1645
1646 u = frame->data
1647 + imageSize
781aa1d1
MCC		 1648 + (frame->frmwidth >>1) * frame->curline ;
1649 v = u + (imageSize >>1 );
18d8a454 1650
781aa1d1 1651 } else if (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420){
18d8a454
DG		 1652
1653 v = frame->data + imageSize + ((frame->curline* (frame->width))>>2) ;
781aa1d1
MCC		 1654 u = v + (imageSize >>2) ;
1655 }
1656 }
1657
1658 if (frame->curline == 0) {
1659 usbvision_adjust_compression(usbvision);
1660 }
1661
1662 if (scratch_len(usbvision) < USBVISION_STRIP_HEADER_LEN) {
1663 return ParseState_Out;
1664 }
1665
1666 //get strip header without changing the scratch_read_ptr
1667 scratch_set_extra_ptr(usbvision, &StripPtr, 0);
1668 scratch_get_extra(usbvision, &StripHeader[0], &StripPtr,
1669 USBVISION_STRIP_HEADER_LEN);
1670
1671 if (StripHeader[0] != USBVISION_STRIP_MAGIC) {
1672 // wrong strip magic
1673 usbvision->stripMagicErrors++;
1674 return ParseState_NextFrame;
1675 }
1676
1677 if (frame->curline != (int)StripHeader[2]) {
1678 //line number missmatch error
1679 usbvision->stripLineNumberErrors++;
1680 }
1681
1682 StripLen = 2 * (unsigned int)StripHeader[1];
1683 if (StripLen > USBVISION_STRIP_LEN_MAX) {
1684 // strip overrun
1685 // I think this never happens
1686 usbvision_request_intra(usbvision);
1687 }
1688
1689 if (scratch_len(usbvision) < StripLen) {
1690 //there is not enough data for the strip
1691 return ParseState_Out;
1692 }
1693
1694 if (usbvision->IntraFrameBuffer) {
1695 Y = usbvision->IntraFrameBuffer + frame->frmwidth * frame->curline;
1696 U = usbvision->IntraFrameBuffer + imageSize + (frame->frmwidth / 2) * (frame->curline / 2);
1697 V = usbvision->IntraFrameBuffer + imageSize / 4 * 5 + (frame->frmwidth / 2) * (frame->curline / 2);
1698 }
1699 else {
1700 return ParseState_NextFrame;
1701 }
1702
18d8a454 1703 bytes_per_pixel = frame->v4l2_format.bytes_per_pixel;
781aa1d1
MCC		 1704 clipmask_index = frame->curline * MAX_FRAME_WIDTH;
1705
1706 scratch_get(usbvision, StripData, StripLen);
1707
1708 IdxEnd = frame->frmwidth;
1709 BlockTypePos = USBVISION_STRIP_HEADER_LEN;
1710 StartBlockPos = BlockTypePos + (IdxEnd - 1) / 96 + (IdxEnd / 2 - 1) / 96 + 2;
1711 BlockPos = StartBlockPos;
1712
1713 usbvision->BlockPos = BlockPos;
1714
1715 if ((rc = usbvision_decompress(usbvision, StripData, Y, &BlockPos, &BlockTypePos, IdxEnd)) != IdxEnd) {
1716 //return ParseState_Continue;
1717 }
1718 if (StripLen > usbvision->maxStripLen) {
1719 usbvision->maxStripLen = StripLen;
1720 }
1721
1722 if (frame->curline%2) {
1723 if ((rc = usbvision_decompress(usbvision, StripData, V, &BlockPos, &BlockTypePos, IdxEnd/2)) != IdxEnd/2) {
1724 //return ParseState_Continue;
1725 }
1726 }
1727 else {
1728 if ((rc = usbvision_decompress(usbvision, StripData, U, &BlockPos, &BlockTypePos, IdxEnd/2)) != IdxEnd/2) {
1729 //return ParseState_Continue;
1730 }
1731 }
1732
1733 if (BlockPos > usbvision->comprBlockPos) {
1734 usbvision->comprBlockPos = BlockPos;
1735 }
1736 if (BlockPos > StripLen) {
1737 usbvision->stripLenErrors++;
1738 }
18d8a454 1739
781aa1d1
MCC		 1740 for (Idx = 0; Idx < IdxEnd; Idx++) {
1741 if((overlay) && (clipped_pixel(clipmask_index))) {
1742 f += bytes_per_pixel;
1743 }
1744 else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
1745 *f++ = Y[Idx];
1746 *f++ = Idx & 0x01 ? U[Idx/2] : V[Idx/2];
1747 }
1748 else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) {
1749 *f++ = Y[Idx];
1750 if ( Idx & 0x01)
1751 *u++ = U[Idx>>1] ;
1752 else
1753 *v++ = V[Idx>>1];
1754 }
1755 else if (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420) {
1756 *f++ = Y [Idx];
18d8a454
DG		 1757 if ( !(( Idx & 0x01 ) | ( frame->curline & 0x01 )) ){
1758
781aa1d1
MCC		 1759/* only need do this for 1 in 4 pixels */
1760/* intraframe buffer is YUV420 format */
1761
1762 *u++ = U[Idx >>1];
1763 *v++ = V[Idx >>1];
1764 }
18d8a454 1765
781aa1d1
MCC		 1766 }
1767 else {
1768 YUV_TO_RGB_BY_THE_BOOK(Y[Idx], U[Idx/2], V[Idx/2], rv, gv, bv);
1769 switch (frame->v4l2_format.format) {
1770 case V4L2_PIX_FMT_GREY:
1771 *f++ = Y[Idx];
1772 break;
1773 case V4L2_PIX_FMT_RGB555:
1774 *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 2));
1775 *f++ = (0x03 & (gv >> 6)) | (0x7C & (rv >> 1));
1776 break;
1777 case V4L2_PIX_FMT_RGB565:
1778 *f++ = (0x1F & (bv >> 3)) | (0xE0 & (gv << 3));
1779 *f++ = (0x07 & (gv >> 5)) | (0xF8 & rv);
1780 break;
1781 case V4L2_PIX_FMT_RGB24:
1782 *f++ = bv;
1783 *f++ = gv;
1784 *f++ = rv;
1785 break;
1786 case V4L2_PIX_FMT_RGB32:
1787 *f++ = bv;
1788 *f++ = gv;
1789 *f++ = rv;
1790 f++;
1791 break;
1792 }
1793 }
1794 clipmask_index++;
1795 }
18d8a454
DG		 1796 /* Deal with non-integer no. of bytes for YUV420P */
1797 if (frame->v4l2_format.format != V4L2_PIX_FMT_YVU420 )
1798 *pcopylen += frame->v4l2_linesize;
1799 else
1800 *pcopylen += frame->curline & 0x01 ? frame->v4l2_linesize : frame->v4l2_linesize << 1;
1801
781aa1d1
MCC		 1802 frame->curline += 1;
1803
1804 if (frame->curline >= frame->frmheight) {
1805 return ParseState_NextFrame;
1806 }
1807 else {
1808 return ParseState_Continue;
1809 }
1810
1811}
1812
1813
1814/*
1815 * usbvision_parse_lines_420()
1816 *
1817 * Parse two lines from the scratch buffer, put
1818 * decoded RGB value into the current frame buffer and add the written
1819 * number of bytes (RGB) to the *pcopylen.
1820 *
1821 */
1822static enum ParseState usbvision_parse_lines_420(struct usb_usbvision *usbvision,
1823 long *pcopylen)
1824{
1825 struct usbvision_frame *frame;
1826 unsigned char *f_even = NULL, *f_odd = NULL;
1827 unsigned int pixel_per_line, block;
1828 int pixel, block_split;
1829 int y_ptr, u_ptr, v_ptr, y_odd_offset;
1830 const int y_block_size = 128;
1831 const int uv_block_size = 64;
1832 const int sub_block_size = 32;
1833 const int y_step[] = { 0, 0, 0, 2 }, y_step_size = 4;
1834 const int uv_step[]= { 0, 0, 0, 4 }, uv_step_size = 4;
1835 unsigned char y[2], u, v; /* YUV components */
1836 int y_, u_, v_, vb, uvg, ur;
1837 int r_, g_, b_; /* RGB components */
1838 unsigned char g;
1839 int clipmask_even_index, clipmask_odd_index, bytes_per_pixel;
1840 int clipmask_add, stretch_bytes;
1841 int overlay = usbvision->overlay;
1842
1843 if (overlay) {
1844 frame = &usbvision->overlay_frame;
1845 if (usbvision->overlay_base == NULL) {
1846 //video_buffer is not set yet
1847 return ParseState_NextFrame;
1848 }
1849 f_even = usbvision->overlay_win + frame->curline *
1850 usbvision->vid_buf.fmt.bytesperline;
1851 f_odd = f_even + usbvision->vid_buf.fmt.bytesperline * usbvision->stretch_height;
1852 }
1853 else {
f2242ee5 1854 frame = usbvision->curFrame;
781aa1d1
MCC		 1855 f_even = frame->data + (frame->v4l2_linesize * frame->curline);
1856 f_odd = f_even + frame->v4l2_linesize * usbvision->stretch_height;
1857 }
1858
1859 /* Make sure there's enough data for the entire line */
1860 /* In this mode usbvision transfer 3 bytes for every 2 pixels */
1861 /* I need two lines to decode the color */
18d8a454 1862 bytes_per_pixel = frame->v4l2_format.bytes_per_pixel;
781aa1d1
MCC		 1863 stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel;
1864 clipmask_even_index = frame->curline * MAX_FRAME_WIDTH;
1865 clipmask_odd_index = clipmask_even_index + MAX_FRAME_WIDTH;
1866 clipmask_add = usbvision->stretch_width;
1867 pixel_per_line = frame->isocHeader.frameWidth;
1868
1869 if (scratch_len(usbvision) < (int)pixel_per_line * 3) {
1870 //printk(KERN_DEBUG "out of data, need %d\n", len);
1871 return ParseState_Out;
1872 }
1873
1874 if ((frame->curline + 1) >= frame->frmheight) {
1875 return ParseState_NextFrame;
1876 }
1877
1878 block_split = (pixel_per_line%y_block_size) ? 1 : 0; //are some blocks splitted into different lines?
1879
1880 y_odd_offset = (pixel_per_line / y_block_size) * (y_block_size + uv_block_size)
1881 + block_split * uv_block_size;
1882
1883 scratch_set_extra_ptr(usbvision, &y_ptr, y_odd_offset);
1884 scratch_set_extra_ptr(usbvision, &u_ptr, y_block_size);
1885 scratch_set_extra_ptr(usbvision, &v_ptr, y_odd_offset
1886 + (4 - block_split) * sub_block_size);
1887
1888 for (block = 0; block < (pixel_per_line / sub_block_size);
1889 block++) {
1890
1891
1892 for (pixel = 0; pixel < sub_block_size; pixel +=2) {
1893 scratch_get(usbvision, &y[0], 2);
1894 scratch_get_extra(usbvision, &u, &u_ptr, 1);
1895 scratch_get_extra(usbvision, &v, &v_ptr, 1);
1896
1897 //I don't use the YUV_TO_RGB macro for better performance
1898 v_ = v - 128;
1899 u_ = u - 128;
1900 vb = 132252 * v_;
1901 uvg= -53281 * u_ - 25625 * v_;
1902 ur = 104595 * u_;
1903
1904 if((overlay) && (clipped_pixel(clipmask_even_index))) {
1905 f_even += bytes_per_pixel;
1906 }
1907 else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
1908 *f_even++ = y[0];
1909 *f_even++ = v;
1910 }
1911 else {
1912 y_ = 76284 * (y[0] - 16);
1913
1914 b_ = (y_ + vb) >> 16;
1915 g_ = (y_ + uvg)>> 16;
1916 r_ = (y_ + ur) >> 16;
1917
1918 switch (frame->v4l2_format.format) {
1919 case V4L2_PIX_FMT_RGB565:
1920 g = LIMIT_RGB(g_);
1921 *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3));
1922 *f_even++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_));
1923 break;
1924 case V4L2_PIX_FMT_RGB24:
1925 *f_even++ = LIMIT_RGB(b_);
1926 *f_even++ = LIMIT_RGB(g_);
1927 *f_even++ = LIMIT_RGB(r_);
1928 break;
1929 case V4L2_PIX_FMT_RGB32:
1930 *f_even++ = LIMIT_RGB(b_);
1931 *f_even++ = LIMIT_RGB(g_);
1932 *f_even++ = LIMIT_RGB(r_);
1933 f_even++;
1934 break;
1935 case V4L2_PIX_FMT_RGB555:
1936 g = LIMIT_RGB(g_);
1937 *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2));
1938 *f_even++ = (0x03 & ( g >> 6)) |
1939 (0x7C & (LIMIT_RGB(r_) >> 1));
1940 break;
1941 }
1942 }
1943 clipmask_even_index += clipmask_add;
1944 f_even += stretch_bytes;
1945
1946 if((overlay) && (clipped_pixel(clipmask_even_index))) {
1947 f_even += bytes_per_pixel;
1948 }
1949 else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
1950 *f_even++ = y[1];
1951 *f_even++ = u;
1952 }
1953 else {
1954 y_ = 76284 * (y[1] - 16);
1955
1956 b_ = (y_ + vb) >> 16;
1957 g_ = (y_ + uvg)>> 16;
1958 r_ = (y_ + ur) >> 16;
1959
1960 switch (frame->v4l2_format.format) {
1961 case V4L2_PIX_FMT_RGB565:
1962 g = LIMIT_RGB(g_);
1963 *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3));
1964 *f_even++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_));
1965 break;
1966 case V4L2_PIX_FMT_RGB24:
1967 *f_even++ = LIMIT_RGB(b_);
1968 *f_even++ = LIMIT_RGB(g_);
1969 *f_even++ = LIMIT_RGB(r_);
1970 break;
1971 case V4L2_PIX_FMT_RGB32:
1972 *f_even++ = LIMIT_RGB(b_);
1973 *f_even++ = LIMIT_RGB(g_);
1974 *f_even++ = LIMIT_RGB(r_);
1975 f_even++;
1976 break;
1977 case V4L2_PIX_FMT_RGB555:
1978 g = LIMIT_RGB(g_);
1979 *f_even++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2));
1980 *f_even++ = (0x03 & ( g >> 6)) |
1981 (0x7C & (LIMIT_RGB(r_) >> 1));
1982 break;
1983 }
1984 }
1985 clipmask_even_index += clipmask_add;
1986 f_even += stretch_bytes;
1987
1988 scratch_get_extra(usbvision, &y[0], &y_ptr, 2);
1989
1990 if ((overlay) && (clipped_pixel(clipmask_odd_index))) {
1991 f_odd += bytes_per_pixel;
1992 }
1993 else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
1994 *f_odd++ = y[0];
1995 *f_odd++ = v;
1996 }
1997 else {
1998 y_ = 76284 * (y[0] - 16);
1999
2000 b_ = (y_ + vb) >> 16;
2001 g_ = (y_ + uvg)>> 16;
2002 r_ = (y_ + ur) >> 16;
2003
2004 switch (frame->v4l2_format.format) {
2005 case V4L2_PIX_FMT_RGB565:
2006 g = LIMIT_RGB(g_);
2007 *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3));
2008 *f_odd++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_));
2009 break;
2010 case V4L2_PIX_FMT_RGB24:
2011 *f_odd++ = LIMIT_RGB(b_);
2012 *f_odd++ = LIMIT_RGB(g_);
2013 *f_odd++ = LIMIT_RGB(r_);
2014 break;
2015 case V4L2_PIX_FMT_RGB32:
2016 *f_odd++ = LIMIT_RGB(b_);
2017 *f_odd++ = LIMIT_RGB(g_);
2018 *f_odd++ = LIMIT_RGB(r_);
2019 f_odd++;
2020 break;
2021 case V4L2_PIX_FMT_RGB555:
2022 g = LIMIT_RGB(g_);
2023 *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2));
2024 *f_odd++ = (0x03 & ( g >> 6)) |
2025 (0x7C & (LIMIT_RGB(r_) >> 1));
2026 break;
2027 }
2028 }
2029 clipmask_odd_index += clipmask_add;
2030 f_odd += stretch_bytes;
2031
2032 if((overlay) && (clipped_pixel(clipmask_odd_index))) {
2033 f_odd += bytes_per_pixel;
2034 }
2035 else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) {
2036 *f_odd++ = y[1];
2037 *f_odd++ = u;
2038 }
2039 else {
2040 y_ = 76284 * (y[1] - 16);
2041
2042 b_ = (y_ + vb) >> 16;
2043 g_ = (y_ + uvg)>> 16;
2044 r_ = (y_ + ur) >> 16;
2045
2046 switch (frame->v4l2_format.format) {
2047 case V4L2_PIX_FMT_RGB565:
2048 g = LIMIT_RGB(g_);
2049 *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 3));
2050 *f_odd++ = (0x07 & ( g >> 5)) | (0xF8 & LIMIT_RGB(r_));
2051 break;
2052 case V4L2_PIX_FMT_RGB24:
2053 *f_odd++ = LIMIT_RGB(b_);
2054 *f_odd++ = LIMIT_RGB(g_);
2055 *f_odd++ = LIMIT_RGB(r_);
2056 break;
2057 case V4L2_PIX_FMT_RGB32:
2058 *f_odd++ = LIMIT_RGB(b_);
2059 *f_odd++ = LIMIT_RGB(g_);
2060 *f_odd++ = LIMIT_RGB(r_);
2061 f_odd++;
2062 break;
2063 case V4L2_PIX_FMT_RGB555:
2064 g = LIMIT_RGB(g_);
2065 *f_odd++ = (0x1F & (LIMIT_RGB(b_) >> 3)) | (0xE0 & (g << 2));
2066 *f_odd++ = (0x03 & ( g >> 6)) |
2067 (0x7C & (LIMIT_RGB(r_) >> 1));
2068 break;
2069 }
2070 }
2071 clipmask_odd_index += clipmask_add;
2072 f_odd += stretch_bytes;
2073 }
2074
2075 scratch_rm_old(usbvision,y_step[block % y_step_size] * sub_block_size);
2076 scratch_inc_extra_ptr(&y_ptr, y_step[(block + 2 * block_split) % y_step_size]
2077 * sub_block_size);
2078 scratch_inc_extra_ptr(&u_ptr, uv_step[block % uv_step_size]
2079 * sub_block_size);
2080 scratch_inc_extra_ptr(&v_ptr, uv_step[(block + 2 * block_split) % uv_step_size]
2081 * sub_block_size);
2082 }
2083
2084 scratch_rm_old(usbvision, pixel_per_line * 3 / 2
2085 + block_split * sub_block_size);
2086
2087 frame->curline += 2 * usbvision->stretch_height;
2088 *pcopylen += frame->v4l2_linesize * 2 * usbvision->stretch_height;
2089
2090 if (frame->curline >= frame->frmheight)
2091 return ParseState_NextFrame;
2092 else
2093 return ParseState_Continue;
2094}
2095
2096/*
2097 * usbvision_parse_data()
2098 *
2099 * Generic routine to parse the scratch buffer. It employs either
2100 * usbvision_find_header() or usbvision_parse_lines() to do most
2101 * of work.
2102 *
2103 */
2104static void usbvision_parse_data(struct usb_usbvision *usbvision)
2105{
2106 struct usbvision_frame *frame;
2107 enum ParseState newstate;
2108 long copylen = 0;
f2242ee5 2109 unsigned long lock_flags;
781aa1d1
MCC		 2110
2111 if (usbvision->overlay) {
2112 frame = &usbvision->overlay_frame;
2113 }
2114 else {
f2242ee5 2115 frame = usbvision->curFrame;
781aa1d1
MCC		 2116 }
2117
2118 PDEBUG(DBG_PARSE, "parsing len=%d\n", scratch_len(usbvision));
2119
781aa1d1
MCC		 2120 while (1) {
2121
2122 newstate = ParseState_Out;
2123 if (scratch_len(usbvision)) {
2124 if (frame->scanstate == ScanState_Scanning) {
2125 newstate = usbvision_find_header(usbvision);
2126 }
2127 else if (frame->scanstate == ScanState_Lines) {
2128 if (usbvision->isocMode == ISOC_MODE_YUV420) {
2129 newstate = usbvision_parse_lines_420(usbvision, &copylen);
2130 }
2131 else if (usbvision->isocMode == ISOC_MODE_YUV422) {
2132 newstate = usbvision_parse_lines_422(usbvision, &copylen);
2133 }
2134 else if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
2135 newstate = usbvision_parse_compress(usbvision, &copylen);
2136 }
2137
2138 }
2139 }
2140 if (newstate == ParseState_Continue) {
2141 continue;
2142 }
2143 else if ((newstate == ParseState_NextFrame) || (newstate == ParseState_Out)) {
2144 break;
2145 }
2146 else {
2147 return; /* ParseState_EndParse */
2148 }
2149 }
2150
2151 if (newstate == ParseState_NextFrame) {
2152 frame->grabstate = FrameState_Done;
2153 do_gettimeofday(&(frame->timestamp));
2154 frame->sequence = usbvision->frame_num;
2155 if (usbvision->overlay) {
2156 frame->grabstate = FrameState_Grabbing;
2157 frame->scanstate = ScanState_Scanning;
2158 frame->scanlength = 0;
2159 copylen = 0;
2160 }
2161 else {
f2242ee5
TM		 2162 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
2163 list_move_tail(&(frame->frame), &usbvision->outqueue);
2164 usbvision->curFrame = NULL;
2165 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
781aa1d1
MCC		 2166 }
2167 usbvision->frame_num++;
2168
2169 /* Optionally display statistics on the screen */
2170 if (flags & FLAGS_OSD_STATS)
2171 usbvision_osd_stats(usbvision, frame);
2172
2173 /* This will cause the process to request another frame. */
f2242ee5
TM		 2174 if (waitqueue_active(&usbvision->wait_frame)) {
2175 PDEBUG(DBG_PARSE, "Wake up !");
2176 wake_up_interruptible(&usbvision->wait_frame);
781aa1d1
MCC		 2177 }
2178 }
f2242ee5
TM		 2179 else
2180 frame->grabstate = FrameState_Grabbing;
2181
781aa1d1
MCC		 2182
2183 /* Update the frame's uncompressed length. */
2184 frame->scanlength += copylen;
2185}
2186
2187
2188/*
2189 * Make all of the blocks of data contiguous
2190 */
2191static int usbvision_compress_isochronous(struct usb_usbvision *usbvision,
f2242ee5 2192 struct urb *urb)
781aa1d1
MCC		 2193{
2194 unsigned char *packet_data;
2195 int i, totlen = 0;
2196
2197 for (i = 0; i < urb->number_of_packets; i++) {
2198 int packet_len = urb->iso_frame_desc[i].actual_length;
2199 int packet_stat = urb->iso_frame_desc[i].status;
2200
2201 packet_data = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
2202
2203 /* Detect and ignore errored packets */
2204 if (packet_stat) { // packet_stat != 0 ?????????????
2205 PDEBUG(DBG_ISOC, "data error: [%d] len=%d, status=%X", i, packet_len, packet_stat);
2206 usbvision->isocErrCount++;
2207 continue;
2208 }
2209
2210 /* Detect and ignore empty packets */
2211 if (packet_len < 0) {
2212 PDEBUG(DBG_ISOC, "error packet [%d]", i);
2213 usbvision->isocSkipCount++;
2214 continue;
2215 }
2216 else if (packet_len == 0) { /* Frame end ????? */
2217 PDEBUG(DBG_ISOC, "null packet [%d]", i);
2218 usbvision->isocstate=IsocState_NoFrame;
2219 usbvision->isocSkipCount++;
2220 continue;
2221 }
2222 else if (packet_len > usbvision->isocPacketSize) {
2223 PDEBUG(DBG_ISOC, "packet[%d] > isocPacketSize", i);
2224 usbvision->isocSkipCount++;
2225 continue;
2226 }
2227
2228 PDEBUG(DBG_ISOC, "packet ok [%d] len=%d", i, packet_len);
2229
2230 if (usbvision->isocstate==IsocState_NoFrame) { //new frame begins
2231 usbvision->isocstate=IsocState_InFrame;
2232 scratch_mark_header(usbvision);
2233 usbvision_measure_bandwidth(usbvision);
2234 PDEBUG(DBG_ISOC, "packet with header");
2235 }
2236
2237 /*
2238 * If usbvision continues to feed us with data but there is no
2239 * consumption (if, for example, V4L client fell asleep) we
2240 * may overflow the buffer. We have to move old data over to
2241 * free room for new data. This is bad for old data. If we
2242 * just drop new data then it's bad for new data... choose
2243 * your favorite evil here.
2244 */
2245 if (scratch_free(usbvision) < packet_len) {
2246
2247 usbvision->scratch_ovf_count++;
2248 PDEBUG(DBG_ISOC, "scratch buf overflow! scr_len: %d, n: %d",
2249 scratch_len(usbvision), packet_len);
2250 scratch_rm_old(usbvision, packet_len - scratch_free(usbvision));
2251 }
2252
2253 /* Now we know that there is enough room in scratch buffer */
2254 scratch_put(usbvision, packet_data, packet_len);
2255 totlen += packet_len;
2256 usbvision->isocDataCount += packet_len;
2257 usbvision->isocPacketCount++;
2258 }
2259#if ENABLE_HEXDUMP
2260 if (totlen > 0) {
2261 static int foo = 0;
2262 if (foo < 1) {
2263 printk(KERN_DEBUG "+%d.\n", usbvision->scratchlen);
2264 usbvision_hexdump(data0, (totlen > 64) ? 64 : totlen);
2265 ++foo;
2266 }
2267 }
2268#endif
2269 return totlen;
2270}
2271
2272static void usbvision_isocIrq(struct urb *urb, struct pt_regs *regs)
2273{
f2242ee5
TM		 2274 int errCode = 0;
2275 int len;
2276 struct usb_usbvision *usbvision = urb->context;
2277 int i;
2278 unsigned long startTime = jiffies;
2279 struct usbvision_frame **f;
781aa1d1 2280
f2242ee5
TM		 2281 /* We don't want to do anything if we are about to be removed! */
2282 if (!USBVISION_IS_OPERATIONAL(usbvision))
2283 return;
781aa1d1 2284
f2242ee5 2285 f = &usbvision->curFrame;
781aa1d1 2286
f2242ee5
TM		 2287 /* Manage streaming interruption */
2288 if (usbvision->streaming == Stream_Interrupt) {
5f7fb877 2289 usbvision->streaming = Stream_Idle;
f2242ee5
TM		 2290 if ((*f)) {
2291 (*f)->grabstate = FrameState_Ready;
2292 (*f)->scanstate = ScanState_Scanning;
2293 }
2294 PDEBUG(DBG_IRQ, "stream interrupted");
2295 wake_up_interruptible(&usbvision->wait_stream);
2296 }
781aa1d1 2297
f2242ee5
TM		 2298 /* Copy the data received into our scratch buffer */
2299 len = usbvision_compress_isochronous(usbvision, urb);
781aa1d1 2300
f2242ee5
TM		 2301 usbvision->isocUrbCount++;
2302 usbvision->urb_length = len;
781aa1d1 2303
f2242ee5
TM		 2304 if (usbvision->streaming == Stream_On) {
2305
2306 /* If we collected enough data let's parse! */
2307 if (scratch_len(usbvision) > USBVISION_HEADER_LENGTH) { /* 12 == header_length */
2308 /*If we don't have a frame we're current working on, complain */
2309 if((!list_empty(&(usbvision->inqueue))) || (usbvision->overlay)) {
2310 if (!(*f)) {
2311 (*f) = list_entry(usbvision->inqueue.next,struct usbvision_frame, frame);
2312 }
2313 usbvision_parse_data(usbvision);
2314 }
2315 else {
2316 PDEBUG(DBG_IRQ, "received data, but no one needs it");
2317 scratch_reset(usbvision);
2318 }
781aa1d1
MCC		 2319 }
2320 }
40bad678
TM		 2321 else {
2322 PDEBUG(DBG_IRQ, "received data, but no one needs it");
2323 scratch_reset(usbvision);
2324 }
f2242ee5 2325
781aa1d1 2326 usbvision->timeInIrq += jiffies - startTime;
f2242ee5
TM		 2327
2328 for (i = 0; i < USBVISION_URB_FRAMES; i++) {
2329 urb->iso_frame_desc[i].status = 0;
2330 urb->iso_frame_desc[i].actual_length = 0;
2331 }
2332
2333 urb->status = 0;
2334 urb->dev = usbvision->dev;
2335 errCode = usb_submit_urb (urb, GFP_ATOMIC);
2336
2337 /* Disable this warning. By design of the driver. */
2338 // if(errCode) {
2339 // err("%s: usb_submit_urb failed: error %d", __FUNCTION__, errCode);
2340 // }
2341
781aa1d1
MCC		 2342 return;
2343}
2344
2345/*************************************/
2346/* Low level usbvision access functions */
2347/*************************************/
2348
2349/*
2350 * usbvision_read_reg()
2351 *
2352 * return < 0 -> Error
2353 * >= 0 -> Data
2354 */
2355
2356static int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg)
2357{
2358 int errCode = 0;
2359 unsigned char buffer[1];
2360
2361 if (!USBVISION_IS_OPERATIONAL(usbvision))
2362 return -1;
2363
2364 errCode = usb_control_msg(usbvision->dev, usb_rcvctrlpipe(usbvision->dev, 1),
2365 USBVISION_OP_CODE,
2366 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT,
2367 0, (__u16) reg, buffer, 1, HZ);
2368
2369 if (errCode < 0) {
2370 err("%s: failed: error %d", __FUNCTION__, errCode);
2371 return errCode;
2372 }
2373 return buffer[0];
2374}
2375
2376/*
2377 * usbvision_write_reg()
2378 *
2379 * return 1 -> Reg written
2380 * 0 -> usbvision is not yet ready
2381 * -1 -> Something went wrong
2382 */
2383
2384static int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg,
2385 unsigned char value)
2386{
2387 int errCode = 0;
2388
2389 if (!USBVISION_IS_OPERATIONAL(usbvision))
2390 return 0;
2391
2392 errCode = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
2393 USBVISION_OP_CODE,
2394 USB_DIR_OUT | USB_TYPE_VENDOR |
2395 USB_RECIP_ENDPOINT, 0, (__u16) reg, &value, 1, HZ);
2396
2397 if (errCode < 0) {
2398 err("%s: failed: error %d", __FUNCTION__, errCode);
2399 }
2400 return errCode;
2401}
2402
2403
2404static void usbvision_ctrlUrb_complete(struct urb *urb, struct pt_regs *regs)
2405{
2406 struct usb_usbvision *usbvision = (struct usb_usbvision *)urb->context;
2407
2408 PDEBUG(DBG_IRQ, "");
2409 usbvision->ctrlUrbBusy = 0;
2410 if (waitqueue_active(&usbvision->ctrlUrb_wq)) {
2411 wake_up_interruptible(&usbvision->ctrlUrb_wq);
2412 }
2413}
2414
2415
2416static int usbvision_write_reg_irq(struct usb_usbvision *usbvision,int address,
2417 unsigned char *data, int len)
2418{
2419 int errCode = 0;
2420
2421 PDEBUG(DBG_IRQ, "");
2422 if (len > 8) {
2423 return -EFAULT;
2424 }
2425// down(&usbvision->ctrlUrbLock);
2426 if (usbvision->ctrlUrbBusy) {
2427// up(&usbvision->ctrlUrbLock);
2428 return -EBUSY;
2429 }
2430 usbvision->ctrlUrbBusy = 1;
2431// up(&usbvision->ctrlUrbLock);
2432
2433 usbvision->ctrlUrbSetup.bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT;
2434 usbvision->ctrlUrbSetup.bRequest = USBVISION_OP_CODE;
2435 usbvision->ctrlUrbSetup.wValue = 0;
2436 usbvision->ctrlUrbSetup.wIndex = cpu_to_le16(address);
2437 usbvision->ctrlUrbSetup.wLength = cpu_to_le16(len);
2438 usb_fill_control_urb (usbvision->ctrlUrb, usbvision->dev,
2439 usb_sndctrlpipe(usbvision->dev, 1),
2440 (unsigned char *)&usbvision->ctrlUrbSetup,
2441 (void *)usbvision->ctrlUrbBuffer, len,
2442 usbvision_ctrlUrb_complete,
2443 (void *)usbvision);
2444
2445 memcpy(usbvision->ctrlUrbBuffer, data, len);
2446
2447 errCode = usb_submit_urb(usbvision->ctrlUrb, GFP_ATOMIC);
2448 if (errCode < 0) {
2449 // error in usb_submit_urb()
2450 usbvision->ctrlUrbBusy = 0;
2451 }
2452 PDEBUG(DBG_IRQ, "submit %d byte: error %d", len, errCode);
2453 return errCode;
2454}
2455
2456
2457
2458
2459static int usbvision_init_compression(struct usb_usbvision *usbvision)
2460{
2461 int errCode = 0;
2462
2463 usbvision->lastIsocFrameNum = -1;
2464 usbvision->isocDataCount = 0;
2465 usbvision->isocPacketCount = 0;
2466 usbvision->isocSkipCount = 0;
2467 usbvision->comprLevel = 50;
2468 usbvision->lastComprLevel = -1;
2469 usbvision->isocUrbCount = 0;
2470 usbvision->requestIntra = 1;
2471 usbvision->isocMeasureBandwidthCount = 0;
2472
2473 return errCode;
2474}
2475
2476/* this function measures the used bandwidth since last call
2477 * return: 0 : no error
2478 * sets usedBandwidth to 1-100 : 1-100% of full bandwidth resp. to isocPacketSize
2479 */
2480static int usbvision_measure_bandwidth (struct usb_usbvision *usbvision)
2481{
2482 int errCode = 0;
2483
2484 if (usbvision->isocMeasureBandwidthCount < 2) { // this gives an average bandwidth of 3 frames
2485 usbvision->isocMeasureBandwidthCount++;
2486 return errCode;
2487 }
2488 if ((usbvision->isocPacketSize > 0) && (usbvision->isocPacketCount > 0)) {
2489 usbvision->usedBandwidth = usbvision->isocDataCount /
2490 (usbvision->isocPacketCount + usbvision->isocSkipCount) *
2491 100 / usbvision->isocPacketSize;
2492 }
2493 usbvision->isocMeasureBandwidthCount = 0;
2494 usbvision->isocDataCount = 0;
2495 usbvision->isocPacketCount = 0;
2496 usbvision->isocSkipCount = 0;
2497 return errCode;
2498}
2499
2500static int usbvision_adjust_compression (struct usb_usbvision *usbvision)
2501{
2502 int errCode = 0;
2503 unsigned char buffer[6];
2504
2505 PDEBUG(DBG_IRQ, "");
2506 if ((adjustCompression) && (usbvision->usedBandwidth > 0)) {
2507 usbvision->comprLevel += (usbvision->usedBandwidth - 90) / 2;
2508 RESTRICT_TO_RANGE(usbvision->comprLevel, 0, 100);
2509 if (usbvision->comprLevel != usbvision->lastComprLevel) {
2510 int distorsion;
2511 if (usbvision->bridgeType == BRIDGE_NT1004 || usbvision->bridgeType == BRIDGE_NT1005) {
2512 buffer[0] = (unsigned char)(4 + 16 * usbvision->comprLevel / 100); // PCM Threshold 1
2513 buffer[1] = (unsigned char)(4 + 8 * usbvision->comprLevel / 100); // PCM Threshold 2
2514 distorsion = 7 + 248 * usbvision->comprLevel / 100;
2515 buffer[2] = (unsigned char)(distorsion & 0xFF); // Average distorsion Threshold (inter)
2516 buffer[3] = (unsigned char)(distorsion & 0xFF); // Average distorsion Threshold (intra)
2517 distorsion = 1 + 42 * usbvision->comprLevel / 100;
2518 buffer[4] = (unsigned char)(distorsion & 0xFF); // Maximum distorsion Threshold (inter)
2519 buffer[5] = (unsigned char)(distorsion & 0xFF); // Maximum distorsion Threshold (intra)
2520 }
2521 else { //BRIDGE_NT1003
2522 buffer[0] = (unsigned char)(4 + 16 * usbvision->comprLevel / 100); // PCM threshold 1
2523 buffer[1] = (unsigned char)(4 + 8 * usbvision->comprLevel / 100); // PCM threshold 2
2524 distorsion = 2 + 253 * usbvision->comprLevel / 100;
2525 buffer[2] = (unsigned char)(distorsion & 0xFF); // distorsion threshold bit0-7
2526 buffer[3] = 0; //(unsigned char)((distorsion >> 8) & 0x0F); // distorsion threshold bit 8-11
2527 distorsion = 0 + 43 * usbvision->comprLevel / 100;
2528 buffer[4] = (unsigned char)(distorsion & 0xFF); // maximum distorsion bit0-7
2529 buffer[5] = 0; //(unsigned char)((distorsion >> 8) & 0x01); // maximum distorsion bit 8
2530 }
2531 errCode = usbvision_write_reg_irq(usbvision, USBVISION_PCM_THR1, buffer, 6);
2532 if (errCode == 0){
2533 PDEBUG(DBG_IRQ, "new compr params %#02x %#02x %#02x %#02x %#02x %#02x", buffer[0],
2534 buffer[1], buffer[2], buffer[3], buffer[4], buffer[5]);
2535 usbvision->lastComprLevel = usbvision->comprLevel;
2536 }
2537 }
2538 }
2539 return errCode;
2540}
2541
2542static int usbvision_request_intra (struct usb_usbvision *usbvision)
2543{
2544 int errCode = 0;
2545 unsigned char buffer[1];
2546
2547 PDEBUG(DBG_IRQ, "");
2548 usbvision->requestIntra = 1;
2549 buffer[0] = 1;
2550 usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1);
2551 return errCode;
2552}
2553
2554static int usbvision_unrequest_intra (struct usb_usbvision *usbvision)
2555{
2556 int errCode = 0;
2557 unsigned char buffer[1];
2558
2559 PDEBUG(DBG_IRQ, "");
2560 usbvision->requestIntra = 0;
2561 buffer[0] = 0;
2562 usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1);
2563 return errCode;
2564}
2565
2566/* ----------------------------------------------------------------------- */
2567/* I2C functions */
2568/* ----------------------------------------------------------------------- */
2569
2570static void call_i2c_clients(struct usb_usbvision *usbvision, unsigned int cmd,
2571 void *arg)
2572{
957883d0
TM		 2573 BUG_ON(NULL == usbvision->i2c_adap.algo_data);
2574 i2c_clients_command(&usbvision->i2c_adap, cmd, arg);
781aa1d1
MCC		 2575}
2576
2577static int attach_inform(struct i2c_client *client)
2578{
2579 struct usb_usbvision *usbvision;
781aa1d1 2580
957883d0
TM		 2581 usbvision = (struct usb_usbvision *)i2c_get_adapdata(client->adapter);
2582
2583 switch (client->addr << 1) {
2584 case 0x43:
2585 case 0x4b:
2586 {
2587 struct tuner_setup tun_setup;
781aa1d1 2588
957883d0
TM		 2589 tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
2590 tun_setup.type = TUNER_TDA9887;
2591 tun_setup.addr = client->addr;
2592
2593 call_i2c_clients(usbvision, TUNER_SET_TYPE_ADDR, &tun_setup);
cefccc80 2594
781aa1d1
MCC		 2595 break;
2596 }
957883d0
TM		 2597 case 0x42:
2598 PDEBUG(DBG_I2C,"attach_inform: saa7114 detected.\n");
2599 break;
2600 case 0x4a:
2601 PDEBUG(DBG_I2C,"attach_inform: saa7113 detected.\n");
2602 break;
2603 case 0xa0:
2604 PDEBUG(DBG_I2C,"attach_inform: eeprom detected.\n");
2605 break;
781aa1d1 2606
957883d0
TM		 2607 default:
2608 PDEBUG(DBG_I2C,"attach inform: detected I2C address %x\n", client->addr << 1);
2609 {
2610 struct tuner_setup tun_setup;
781aa1d1 2611
957883d0
TM		 2612 usbvision->tuner_addr = client->addr;
2613
2614 if ((usbvision->have_tuner) && (usbvision->tuner_type != -1)) {
2615 tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
2616 tun_setup.type = usbvision->tuner_type;
2617 tun_setup.addr = usbvision->tuner_addr;
2618 call_i2c_clients(usbvision, TUNER_SET_TYPE_ADDR, &tun_setup);
2619 }
2620 }
2621 break;
2622 }
781aa1d1
MCC		 2623 return 0;
2624}
2625
2626static int detach_inform(struct i2c_client *client)
2627{
2628 struct usb_usbvision *usbvision;
781aa1d1
MCC		 2629
2630 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
2631 usbvision = (struct usb_usbvision *)client->adapter->data;
2632 #else
2633 usbvision = (struct usb_usbvision *)i2c_get_adapdata(client->adapter);
2634 #endif
2635
2636 PDEBUG(DBG_I2C, "usbvision[%d] detaches %s", usbvision->nr, client->name);
781aa1d1
MCC		 2637 return 0;
2638}
2639
2640static int
2641usbvision_i2c_read_max4(struct usb_usbvision *usbvision, unsigned char addr,
2642 char *buf, short len)
2643{
2644 int rc, retries;
2645
2646 for (retries = 5;;) {
2647 rc = usbvision_write_reg(usbvision, USBVISION_SER_ADRS, addr);
2648 if (rc < 0)
2649 return rc;
2650
2651 /* Initiate byte read cycle */
2652 /* USBVISION_SER_CONT <- d0-d2 n. of bytes to r/w */
2653 /* d3 0=Wr 1=Rd */
2654 rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT,
2655 (len & 0x07) | 0x18);
2656 if (rc < 0)
2657 return rc;
2658
2659 /* Test for Busy and ACK */
2660 do {
2661 /* USBVISION_SER_CONT -> d4 == 0 busy */
2662 rc = usbvision_read_reg(usbvision, USBVISION_SER_CONT);
2663 } while (rc > 0 && ((rc & 0x10) != 0)); /* Retry while busy */
2664 if (rc < 0)
2665 return rc;
2666
2667 /* USBVISION_SER_CONT -> d5 == 1 Not ack */
2668 if ((rc & 0x20) == 0) /* Ack? */
2669 break;
2670
2671 /* I2C abort */
2672 rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT, 0x00);
2673 if (rc < 0)
2674 return rc;
2675
2676 if (--retries < 0)
2677 return -1;
2678 }
2679
2680 switch (len) {
2681 case 4:
2682 buf[3] = usbvision_read_reg(usbvision, USBVISION_SER_DAT4);
2683 case 3:
2684 buf[2] = usbvision_read_reg(usbvision, USBVISION_SER_DAT3);
2685 case 2:
2686 buf[1] = usbvision_read_reg(usbvision, USBVISION_SER_DAT2);
2687 case 1:
2688 buf[0] = usbvision_read_reg(usbvision, USBVISION_SER_DAT1);
2689 break;
2690 default:
2691 printk(KERN_ERR
2692 "usbvision_i2c_read_max4: buffer length > 4\n");
2693 }
2694
2695 if (debug & DBG_I2C) {
2696 int idx;
2697 for (idx = 0; idx < len; idx++) {
2698 PDEBUG(DBG_I2C, "read %x from address %x", (unsigned char)buf[idx], addr);
2699 }
2700 }
2701 return len;
2702}
2703
2704
2705static int usbvision_i2c_write_max4(struct usb_usbvision *usbvision,
2706 unsigned char addr, const char *buf,
2707 short len)
2708{
2709 int rc, retries;
2710 int i;
2711 unsigned char value[6];
2712 unsigned char ser_cont;
2713
2714 ser_cont = (len & 0x07) | 0x10;
2715
2716 value[0] = addr;
2717 value[1] = ser_cont;
2718 for (i = 0; i < len; i++)
2719 value[i + 2] = buf[i];
2720
2721 for (retries = 5;;) {
2722 rc = usb_control_msg(usbvision->dev,
2723 usb_sndctrlpipe(usbvision->dev, 1),
2724 USBVISION_OP_CODE,
2725 USB_DIR_OUT | USB_TYPE_VENDOR |
2726 USB_RECIP_ENDPOINT, 0,
2727 (__u16) USBVISION_SER_ADRS, value,
2728 len + 2, HZ);
2729
2730 if (rc < 0)
2731 return rc;
2732
2733 rc = usbvision_write_reg(usbvision, USBVISION_SER_CONT,
2734 (len & 0x07) | 0x10);
2735 if (rc < 0)
2736 return rc;
2737
2738 /* Test for Busy and ACK */
2739 do {
2740 rc = usbvision_read_reg(usbvision, USBVISION_SER_CONT);
2741 } while (rc > 0 && ((rc & 0x10) != 0)); /* Retry while busy */
2742 if (rc < 0)
2743 return rc;
2744
2745 if ((rc & 0x20) == 0) /* Ack? */
2746 break;
2747
2748 /* I2C abort */
2749 usbvision_write_reg(usbvision, USBVISION_SER_CONT, 0x00);
2750
2751 if (--retries < 0)
2752 return -1;
2753
2754 }
2755
2756 if (debug & DBG_I2C) {
2757 int idx;
2758 for (idx = 0; idx < len; idx++) {
2759 PDEBUG(DBG_I2C, "wrote %x at address %x", (unsigned char)buf[idx], addr);
2760 }
2761 }
2762 return len;
2763}
2764
2765static int usbvision_i2c_write(void *data, unsigned char addr, char *buf,
2766 short len)
2767{
2768 char *bufPtr = buf;
2769 int retval;
2770 int wrcount = 0;
2771 int count;
18d8a454 2772 int maxLen = 4;
781aa1d1
MCC		 2773 struct usb_usbvision *usbvision = (struct usb_usbvision *) data;
2774
2775 while (len > 0) {
2776 count = (len > maxLen) ? maxLen : len;
2777 retval = usbvision_i2c_write_max4(usbvision, addr, bufPtr, count);
2778 if (retval > 0) {
2779 len -= count;
2780 bufPtr += count;
2781 wrcount += count;
2782 } else
2783 return (retval < 0) ? retval : -EFAULT;
2784 }
2785 return wrcount;
2786}
2787
2788static int usbvision_i2c_read(void *data, unsigned char addr, char *buf,
2789 short len)
2790{
2791 char temp[4];
2792 int retval, i;
2793 int rdcount = 0;
2794 int count;
2795 struct usb_usbvision *usbvision = (struct usb_usbvision *) data;
2796
2797 while (len > 0) {
2798 count = (len > 3) ? 4 : len;
2799 retval = usbvision_i2c_read_max4(usbvision, addr, temp, count);
2800 if (retval > 0) {
2801 for (i = 0; i < len; i++)
2802 buf[rdcount + i] = temp[i];
2803 len -= count;
2804 rdcount += count;
2805 } else
2806 return (retval < 0) ? retval : -EFAULT;
2807 }
2808 return rdcount;
2809}
2810
2811static struct i2c_algo_usb_data i2c_algo_template = {
2812 .data = NULL,
2813 .inb = usbvision_i2c_read,
2814 .outb = usbvision_i2c_write,
2815 .udelay = 10,
2816 .mdelay = 10,
2817 .timeout = 100,
2818};
2819
2820static struct i2c_adapter i2c_adap_template = {
2821 .owner = THIS_MODULE,
2822 .name = "usbvision",
2823 .id = I2C_HW_B_BT848, /* FIXME */
2824 .algo = NULL,
2825 .algo_data = NULL,
2826 .client_register = attach_inform,
2827 .client_unregister = detach_inform,
2828#if defined (I2C_ADAP_CLASS_TV_ANALOG)
2829 .class = I2C_ADAP_CLASS_TV_ANALOG,
2830#elif defined (I2C_CLASS_TV_ANALOG)
2831 .class = I2C_CLASS_TV_ANALOG,
2832#endif
2833};
2834
2835static struct i2c_client i2c_client_template = {
2836 .name = "usbvision internal",
2837 .flags = 0,
2838 .addr = 0,
2839 .adapter = NULL,
2840 .driver = NULL,
2841};
2842
2843static int usbvision_init_i2c(struct usb_usbvision *usbvision)
2844{
2845 memcpy(&usbvision->i2c_adap, &i2c_adap_template,
2846 sizeof(struct i2c_adapter));
2847 memcpy(&usbvision->i2c_algo, &i2c_algo_template,
2848 sizeof(struct i2c_algo_usb_data));
2849 memcpy(&usbvision->i2c_client, &i2c_client_template,
2850 sizeof(struct i2c_client));
2851
2852 sprintf(usbvision->i2c_adap.name + strlen(usbvision->i2c_adap.name),
2853 " #%d", usbvision->vdev->minor & 0x1f);
2854 PDEBUG(DBG_I2C, "Adaptername: %s", usbvision->i2c_adap.name);
2855
2856 i2c_set_adapdata(&usbvision->i2c_adap, usbvision);
2857 i2c_set_clientdata(&usbvision->i2c_client, usbvision);
2858 i2c_set_algo_usb_data(&usbvision->i2c_algo, usbvision);
2859
2860 usbvision->i2c_adap.algo_data = &usbvision->i2c_algo;
2861 usbvision->i2c_client.adapter = &usbvision->i2c_adap;
2862
2863 if (usbvision_write_reg(usbvision, USBVISION_SER_MODE, USBVISION_IIC_LRNACK) < 0) {
2864 printk(KERN_ERR "usbvision_init_i2c: can't wirte reg\n");
2865 return -EBUSY;
2866 }
2867
2868#ifdef CONFIG_KMOD
2869 /* Request the load of the i2c modules we need */
2870 if (autoload) {
2871 switch (usbvision_device_data[usbvision->DevModel].Codec) {
2872 case CODEC_SAA7113:
2873 request_module("saa7115");
2874 break;
2875 case CODEC_SAA7111:
2876 request_module("saa7115");
2877 break;
2878 }
2879 if (usbvision_device_data[usbvision->DevModel].Tuner == 1) {
18d8a454 2880 request_module("tuner");
781aa1d1
MCC		 2881 }
2882 }
2883#endif
2884
957883d0 2885 return usbvision_i2c_usb_add_bus(&usbvision->i2c_adap);
781aa1d1
MCC		 2886}
2887
2888
2889/****************************/
2890/* usbvision utility functions */
2891/****************************/
2892
2893static int usbvision_power_off(struct usb_usbvision *usbvision)
2894{
2895 int errCode = 0;
2896
2897 PDEBUG(DBG_FUNC, "");
2898
2899 errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN);
2900 if (errCode == 1) {
2901 usbvision->power = 0;
2902 }
2903 PDEBUG(DBG_FUNC, "%s: errCode %d", (errCode!=1)?"ERROR":"power is off", errCode);
2904 return errCode;
2905}
2906
2907
2908// to call usbvision_power_off from task queue
2909static void call_usbvision_power_off(void *_usbvision)
2910{
2911 struct usb_usbvision *usbvision = _usbvision;
2912
2913 PDEBUG(DBG_FUNC, "");
2914 down_interruptible(&usbvision->lock);
2915 if(usbvision->user == 0) {
2916 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
2917 usbvision_power_off(usbvision);
2918 usbvision->initialized = 0;
2919 }
2920 up(&usbvision->lock);
2921}
2922
2923
2924/*
2925 * usbvision_set_video_format()
2926 *
2927 */
2928static int usbvision_set_video_format(struct usb_usbvision *usbvision, int format)
2929{
2930 static const char proc[] = "usbvision_set_video_format";
2931 int rc;
2932 unsigned char value[2];
2933
2934 if (!USBVISION_IS_OPERATIONAL(usbvision))
2935 return 0;
2936
2937 PDEBUG(DBG_FUNC, "isocMode %#02x", format);
2938
2939 if ((format != ISOC_MODE_YUV422)
2940 && (format != ISOC_MODE_YUV420)
2941 && (format != ISOC_MODE_COMPRESS)) {
2942 printk(KERN_ERR "usbvision: unknown video format %02x, using default YUV420",
2943 format);
2944 format = ISOC_MODE_YUV420;
2945 }
2946 value[0] = 0x0A; //TODO: See the effect of the filter
2947 value[1] = format;
2948 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
2949 USBVISION_OP_CODE,
2950 USB_DIR_OUT | USB_TYPE_VENDOR |
2951 USB_RECIP_ENDPOINT, 0,
2952 (__u16) USBVISION_FILT_CONT, value, 2, HZ);
2953
2954 if (rc < 0) {
2955 printk(KERN_ERR "%s: ERROR=%d. USBVISION stopped - "
2956 "reconnect or reload driver.\n", proc, rc);
2957 }
2958 usbvision->isocMode = format;
2959 return rc;
2960}
2961
2962/*
2963 * usbvision_set_output()
2964 *
2965 */
2966
2967static int usbvision_set_output(struct usb_usbvision *usbvision, int width,
2968 int height)
2969{
2970 int errCode = 0;
2971 int UsbWidth, UsbHeight;
2972 unsigned int frameRate=0, frameDrop=0;
2973 unsigned char value[4];
2974
2975 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
2976 return 0;
2977 }
2978
2979 if (width > MAX_USB_WIDTH) {
2980 UsbWidth = width / 2;
2981 usbvision->stretch_width = 2;
2982 }
2983 else {
2984 UsbWidth = width;
2985 usbvision->stretch_width = 1;
2986 }
2987
2988 if (height > MAX_USB_HEIGHT) {
2989 UsbHeight = height / 2;
2990 usbvision->stretch_height = 2;
2991 }
2992 else {
2993 UsbHeight = height;
2994 usbvision->stretch_height = 1;
2995 }
2996
2997 RESTRICT_TO_RANGE(UsbWidth, MIN_FRAME_WIDTH, MAX_USB_WIDTH);
2998 UsbWidth &= ~(MIN_FRAME_WIDTH-1);
2999 RESTRICT_TO_RANGE(UsbHeight, MIN_FRAME_HEIGHT, MAX_USB_HEIGHT);
3000 UsbHeight &= ~(1);
3001
3002 PDEBUG(DBG_FUNC, "usb %dx%d; screen %dx%d; stretch %dx%d",
3003 UsbWidth, UsbHeight, width, height,
3004 usbvision->stretch_width, usbvision->stretch_height);
3005
3006 /* I'll not rewrite the same values */
3007 if ((UsbWidth != usbvision->curwidth) || (UsbHeight != usbvision->curheight)) {
3008 value[0] = UsbWidth & 0xff; //LSB
3009 value[1] = (UsbWidth >> 8) & 0x03; //MSB
3010 value[2] = UsbHeight & 0xff; //LSB
3011 value[3] = (UsbHeight >> 8) & 0x03; //MSB
3012
3013 errCode = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
3014 USBVISION_OP_CODE,
3015 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT,
3016 0, (__u16) USBVISION_LXSIZE_O, value, 4, HZ);
3017
3018 if (errCode < 0) {
3019 err("%s failed: error %d", __FUNCTION__, errCode);
3020 return errCode;
3021 }
3022 usbvision->curwidth = usbvision->stretch_width * UsbWidth;
3023 usbvision->curheight = usbvision->stretch_height * UsbHeight;
3024 }
3025
3026 if (usbvision->isocMode == ISOC_MODE_YUV422) {
3027 frameRate = (usbvision->isocPacketSize * 1000) / (UsbWidth * UsbHeight * 2);
3028 }
3029 else if (usbvision->isocMode == ISOC_MODE_YUV420) {
3030 frameRate = (usbvision->isocPacketSize * 1000) / ((UsbWidth * UsbHeight * 12) / 8);
3031 }
3032 else {
3033 frameRate = FRAMERATE_MAX;
3034 }
3035
f2242ee5 3036 if (usbvision->tvnorm->id & V4L2_STD_625_50) {
18d8a454 3037 frameDrop = frameRate * 32 / 25 - 1;
781aa1d1 3038 }
f2242ee5 3039 else if (usbvision->tvnorm->id & V4L2_STD_525_60) {
781aa1d1
MCC		 3040 frameDrop = frameRate * 32 / 30 - 1;
3041 }
3042
3043 RESTRICT_TO_RANGE(frameDrop, FRAMERATE_MIN, FRAMERATE_MAX);
3044
3045 PDEBUG(DBG_FUNC, "frameRate %d fps, frameDrop %d", frameRate, frameDrop);
3046
3047 frameDrop = FRAMERATE_MAX; // We can allow the maximum here, because dropping is controlled
3048
3049 /* frameDrop = 7; => framePhase = 1, 5, 9, 13, 17, 21, 25, 0, 4, 8, ...
3050 => frameSkip = 4;
3051 => frameRate = (7 + 1) * 25 / 32 = 200 / 32 = 6.25;
3052
3053 frameDrop = 9; => framePhase = 1, 5, 8, 11, 14, 17, 21, 24, 27, 1, 4, 8, ...
3054 => frameSkip = 4, 3, 3, 3, 3, 4, 3, 3, 3, 3, 4, ...
3055 => frameRate = (9 + 1) * 25 / 32 = 250 / 32 = 7.8125;
3056 */
3057 errCode = usbvision_write_reg(usbvision, USBVISION_FRM_RATE, frameDrop);
3058 return errCode;
3059}
3060
3061
f2242ee5
TM		 3062/*
3063 * usbvision_empty_framequeues()
3064 * prepare queues for incoming and outgoing frames
3065 */
3066static void usbvision_empty_framequeues(struct usb_usbvision *usbvision)
3067{
3068 u32 i;
3069
3070 INIT_LIST_HEAD(&(usbvision->inqueue));
3071 INIT_LIST_HEAD(&(usbvision->outqueue));
3072
3073 for (i = 0; i < USBVISION_NUMFRAMES; i++) {
3074 usbvision->frame[i].grabstate = FrameState_Unused;
3075 usbvision->frame[i].bytes_read = 0;
3076 }
3077}
3078
3079/*
3080 * usbvision_stream_interrupt()
3081 * stops streaming
3082 */
3083static int usbvision_stream_interrupt(struct usb_usbvision *usbvision)
3084{
3085 int ret = 0;
3086
3087 /* stop reading from the device */
3088
3089 usbvision->streaming = Stream_Interrupt;
3090 ret = wait_event_timeout(usbvision->wait_stream,
5f7fb877 3091 (usbvision->streaming == Stream_Idle),
f2242ee5
TM		 3092 msecs_to_jiffies(USBVISION_NUMSBUF*USBVISION_URB_FRAMES));
3093 return ret;
3094}
3095
781aa1d1
MCC		 3096/*
3097 * usbvision_set_compress_params()
3098 *
3099 */
3100
3101static int usbvision_set_compress_params(struct usb_usbvision *usbvision)
3102{
3103 static const char proc[] = "usbvision_set_compresion_params: ";
3104 int rc;
3105 unsigned char value[6];
3106
3107 value[0] = 0x0F; // Intra-Compression cycle
3108 value[1] = 0x01; // Reg.45 one line per strip
3109 value[2] = 0x00; // Reg.46 Force intra mode on all new frames
3110 value[3] = 0x00; // Reg.47 FORCE_UP <- 0 normal operation (not force)
3111 value[4] = 0xA2; // Reg.48 BUF_THR I'm not sure if this does something in not compressed mode.
18d8a454 3112 value[5] = 0x00; // Reg.49 DVI_YUV This has nothing to do with compression
781aa1d1
MCC		 3113
3114 //catched values for NT1004
3115 // value[0] = 0xFF; // Never apply intra mode automatically
3116 // value[1] = 0xF1; // Use full frame height for virtual strip width; One line per strip
3117 // value[2] = 0x01; // Force intra mode on all new frames
3118 // value[3] = 0x00; // Strip size 400 Bytes; do not force up
3119 // value[4] = 0xA2; //
3120 if (!USBVISION_IS_OPERATIONAL(usbvision))
3121 return 0;
3122
3123 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
3124 USBVISION_OP_CODE,
3125 USB_DIR_OUT | USB_TYPE_VENDOR |
3126 USB_RECIP_ENDPOINT, 0,
3127 (__u16) USBVISION_INTRA_CYC, value, 5, HZ);
3128
3129 if (rc < 0) {
3130 printk(KERN_ERR "%sERROR=%d. USBVISION stopped - "
3131 "reconnect or reload driver.\n", proc, rc);
3132 return rc;
3133 }
3134
3135 if (usbvision->bridgeType == BRIDGE_NT1004) {
3136 value[0] = 20; // PCM Threshold 1
3137 value[1] = 12; // PCM Threshold 2
3138 value[2] = 255; // Distorsion Threshold inter
3139 value[3] = 255; // Distorsion Threshold intra
3140 value[4] = 43; // Max Distorsion inter
3141 value[5] = 43; // Max Distorsion intra
3142 }
3143 else {
3144 value[0] = 20; // PCM Threshold 1
3145 value[1] = 12; // PCM Threshold 2
3146 value[2] = 255; // Distorsion Threshold d7-d0
3147 value[3] = 0; // Distorsion Threshold d11-d8
3148 value[4] = 43; // Max Distorsion d7-d0
3149 value[5] = 0; // Max Distorsion d8
3150 }
3151
3152 if (!USBVISION_IS_OPERATIONAL(usbvision))
3153 return 0;
3154
3155 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
3156 USBVISION_OP_CODE,
3157 USB_DIR_OUT | USB_TYPE_VENDOR |
3158 USB_RECIP_ENDPOINT, 0,
3159 (__u16) USBVISION_PCM_THR1, value, 6, HZ);
3160
3161 if (rc < 0) {
3162 printk(KERN_ERR "%sERROR=%d. USBVISION stopped - "
3163 "reconnect or reload driver.\n", proc, rc);
3164 return rc;
3165 }
3166
3167
3168 return rc;
3169}
3170
3171
3172/*
3173 * usbvision_set_input()
3174 *
3175 * Set the input (saa711x, ...) size x y and other misc input params
3176 * I've no idea if this parameters are right
3177 *
3178 */
3179static int usbvision_set_input(struct usb_usbvision *usbvision)
3180{
3181 static const char proc[] = "usbvision_set_input: ";
3182 int rc;
3183 unsigned char value[8];
3184 unsigned char dvi_yuv_value;
3185
3186 if (!USBVISION_IS_OPERATIONAL(usbvision))
3187 return 0;
3188
3189 /* Set input format expected from decoder*/
3190 if (usbvision_device_data[usbvision->DevModel].Vin_Reg1 >= 0) {
3191 value[0] = usbvision_device_data[usbvision->DevModel].Vin_Reg1 & 0xff;
3192 } else if(usbvision_device_data[usbvision->DevModel].Codec == CODEC_SAA7113) {
3193 /* SAA7113 uses 8 bit output */
3194 value[0] = USBVISION_8_422_SYNC;
3195 } else {
3196 /* I'm sure only about d2-d0 [010] 16 bit 4:2:2 usin sync pulses
3197 * as that is how saa7111 is configured */
3198 value[0] = USBVISION_16_422_SYNC;
3199 /* | USBVISION_VSNC_POL | USBVISION_VCLK_POL);*/
3200 }
3201
3202 rc = usbvision_write_reg(usbvision, USBVISION_VIN_REG1, value[0]);
3203 if (rc < 0) {
3204 printk(KERN_ERR "%sERROR=%d. USBVISION stopped - "
3205 "reconnect or reload driver.\n", proc, rc);
3206 return rc;
3207 }
3208
3209
f2242ee5 3210 if (usbvision->tvnorm->id & V4L2_STD_PAL) {
781aa1d1
MCC		 3211 value[0] = 0xC0;
3212 value[1] = 0x02; //0x02C0 -> 704 Input video line length
3213 value[2] = 0x20;
3214 value[3] = 0x01; //0x0120 -> 288 Input video n. of lines
3215 value[4] = 0x60;
3216 value[5] = 0x00; //0x0060 -> 96 Input video h offset
3217 value[6] = 0x16;
3218 value[7] = 0x00; //0x0016 -> 22 Input video v offset
f2242ee5 3219 } else if (usbvision->tvnorm->id & V4L2_STD_SECAM) {
781aa1d1
MCC		 3220 value[0] = 0xC0;
3221 value[1] = 0x02; //0x02C0 -> 704 Input video line length
3222 value[2] = 0x20;
3223 value[3] = 0x01; //0x0120 -> 288 Input video n. of lines
3224 value[4] = 0x01;
3225 value[5] = 0x00; //0x0001 -> 01 Input video h offset
3226 value[6] = 0x01;
3227 value[7] = 0x00; //0x0001 -> 01 Input video v offset
3228 } else { /* V4L2_STD_NTSC */
3229 value[0] = 0xD0;
3230 value[1] = 0x02; //0x02D0 -> 720 Input video line length
3231 value[2] = 0xF0;
3232 value[3] = 0x00; //0x00F0 -> 240 Input video number of lines
3233 value[4] = 0x50;
3234 value[5] = 0x00; //0x0050 -> 80 Input video h offset
3235 value[6] = 0x10;
3236 value[7] = 0x00; //0x0010 -> 16 Input video v offset
3237 }
3238
3239 if (usbvision_device_data[usbvision->DevModel].X_Offset >= 0) {
3240 value[4]=usbvision_device_data[usbvision->DevModel].X_Offset & 0xff;
3241 value[5]=(usbvision_device_data[usbvision->DevModel].X_Offset & 0x0300) >> 8;
3242 }
3243
3244 if (usbvision_device_data[usbvision->DevModel].Y_Offset >= 0) {
3245 value[6]=usbvision_device_data[usbvision->DevModel].Y_Offset & 0xff;
3246 value[7]=(usbvision_device_data[usbvision->DevModel].Y_Offset & 0x0300) >> 8;
3247 }
3248
3249 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
3250 USBVISION_OP_CODE, /* USBVISION specific code */
3251 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, 0,
3252 (__u16) USBVISION_LXSIZE_I, value, 8, HZ);
3253 if (rc < 0) {
3254 printk(KERN_ERR "%sERROR=%d. USBVISION stopped - "
3255 "reconnect or reload driver.\n", proc, rc);
3256 return rc;
3257 }
3258
3259
3260 dvi_yuv_value = 0x00; /* U comes after V, Ya comes after U/V, Yb comes after Yb */
3261
3262 if(usbvision_device_data[usbvision->DevModel].Dvi_yuv >= 0){
3263 dvi_yuv_value = usbvision_device_data[usbvision->DevModel].Dvi_yuv & 0xff;
3264 }
3265 else if(usbvision_device_data[usbvision->DevModel].Codec == CODEC_SAA7113) {
18d8a454 3266 /* This changes as the fine sync control changes. Further investigation necessary */
781aa1d1
MCC		 3267 dvi_yuv_value = 0x06;
3268 }
3269
3270 return (usbvision_write_reg(usbvision, USBVISION_DVI_YUV, dvi_yuv_value));
3271}
3272
3273
3274/*
3275 * usbvision_set_dram_settings()
3276 *
3277 * Set the buffer address needed by the usbvision dram to operate
3278 * This values has been taken with usbsnoop.
3279 *
3280 */
3281
3282static int usbvision_set_dram_settings(struct usb_usbvision *usbvision)
3283{
3284 int rc;
3285 unsigned char value[8];
3286
3287 if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
3288 value[0] = 0x42;
3289 value[1] = 0x71;
3290 value[2] = 0xff;
3291 value[3] = 0x00;
3292 value[4] = 0x98;
3293 value[5] = 0xe0;
3294 value[6] = 0x71;
3295 value[7] = 0xff;
3296 // UR: 0x0E200-0x3FFFF = 204288 Words (1 Word = 2 Byte)
3297 // FDL: 0x00000-0x0E099 = 57498 Words
3298 // VDW: 0x0E3FF-0x3FFFF
3299 }
3300 else {
3301 value[0] = 0x42;
3302 value[1] = 0x00;
3303 value[2] = 0xff;
3304 value[3] = 0x00;
3305 value[4] = 0x00;
3306 value[5] = 0x00;
3307 value[6] = 0x00;
3308 value[7] = 0xff;
3309 }
3310 /* These are the values of the address of the video buffer,
3311 * they have to be loaded into the USBVISION_DRM_PRM1-8
3312 *
3313 * Start address of video output buffer for read: drm_prm1-2 -> 0x00000
3314 * End address of video output buffer for read: drm_prm1-3 -> 0x1ffff
3315 * Start address of video frame delay buffer: drm_prm1-4 -> 0x20000
3316 * Only used in compressed mode
3317 * End address of video frame delay buffer: drm_prm1-5-6 -> 0x3ffff
3318 * Only used in compressed mode
3319 * Start address of video output buffer for write: drm_prm1-7 -> 0x00000
3320 * End address of video output buffer for write: drm_prm1-8 -> 0x1ffff
3321 */
3322
3323 if (!USBVISION_IS_OPERATIONAL(usbvision))
3324 return 0;
3325
3326 rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1),
3327 USBVISION_OP_CODE, /* USBVISION specific code */
3328 USB_DIR_OUT | USB_TYPE_VENDOR |
3329 USB_RECIP_ENDPOINT, 0,
3330 (__u16) USBVISION_DRM_PRM1, value, 8, HZ);
3331
3332 if (rc < 0) {
3333 err("%sERROR=%d", __FUNCTION__, rc);
3334 return rc;
3335 }
3336
3337 /* Restart the video buffer logic */
3338 if ((rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, USBVISION_RES_UR |
3339 USBVISION_RES_FDL | USBVISION_RES_VDW)) < 0)
3340 return rc;
3341 rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, 0x00);
3342
3343 return rc;
3344}
3345
3346/*
3347 * ()
3348 *
3349 * Power on the device, enables suspend-resume logic
3350 * & reset the isoc End-Point
3351 *
3352 */
3353
3354static int usbvision_power_on(struct usb_usbvision *usbvision)
3355{
3356 int errCode = 0;
3357
3358 PDEBUG(DBG_FUNC, "");
3359
3360 usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN);
3361 usbvision_write_reg(usbvision, USBVISION_PWR_REG,
3362 USBVISION_SSPND_EN | USBVISION_RES2);
3363 usbvision_write_reg(usbvision, USBVISION_PWR_REG,
3364 USBVISION_SSPND_EN | USBVISION_PWR_VID);
3365 errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG,
3366 USBVISION_SSPND_EN | USBVISION_PWR_VID | USBVISION_RES2);
3367 if (errCode == 1) {
3368 usbvision->power = 1;
3369 }
3370 PDEBUG(DBG_FUNC, "%s: errCode %d", (errCode<0)?"ERROR":"power is on", errCode);
3371 return errCode;
3372}
3373
3374
3375static void usbvision_powerOffTimer(unsigned long data)
3376{
3377 struct usb_usbvision *usbvision = (void *) data;
3378
3379 PDEBUG(DBG_FUNC, "");
3380 del_timer(&usbvision->powerOffTimer);
3381 INIT_WORK(&usbvision->powerOffWork, call_usbvision_power_off, usbvision);
3382 (void) schedule_work(&usbvision->powerOffWork);
18d8a454 3383
781aa1d1
MCC		 3384}
3385
3386
3387/*
3388 * usbvision_begin_streaming()
3389 * Sure you have to put bit 7 to 0, if not incoming frames are droped, but no
3390 * idea about the rest
3391 */
3392static int usbvision_begin_streaming(struct usb_usbvision *usbvision)
3393{
3394 int errCode = 0;
3395
3396 if (usbvision->isocMode == ISOC_MODE_COMPRESS) {
3397 usbvision_init_compression(usbvision);
3398 }
3399 errCode = usbvision_write_reg(usbvision, USBVISION_VIN_REG2, USBVISION_NOHVALID |
3400 usbvision->Vin_Reg2_Preset);
3401 return errCode;
3402}
3403
3404/*
3405 * usbvision_restart_isoc()
3406 * Not sure yet if touching here PWR_REG make loose the config
3407 */
3408
3409static int usbvision_restart_isoc(struct usb_usbvision *usbvision)
3410{
3411 int ret;
3412
3413 if (
3414 (ret =
3415 usbvision_write_reg(usbvision, USBVISION_PWR_REG,
3416 USBVISION_SSPND_EN | USBVISION_PWR_VID)) < 0)
3417 return ret;
3418 if (
3419 (ret =
3420 usbvision_write_reg(usbvision, USBVISION_PWR_REG,
3421 USBVISION_SSPND_EN | USBVISION_PWR_VID |
3422 USBVISION_RES2)) < 0)
3423 return ret;
3424 if (
3425 (ret =
3426 usbvision_write_reg(usbvision, USBVISION_VIN_REG2,
3427 USBVISION_KEEP_BLANK | USBVISION_NOHVALID |
3428 usbvision->Vin_Reg2_Preset)) < 0) return ret;
3429
3430 /* TODO: schedule timeout */
3431 while ((usbvision_read_reg(usbvision, USBVISION_STATUS_REG) && 0x01) != 1);
3432
3433 return 0;
3434}
3435
3436static int usbvision_audio_on(struct usb_usbvision *usbvision)
3437{
3438 if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, usbvision->AudioChannel) < 0) {
3439 printk(KERN_ERR "usbvision_audio_on: can't wirte reg\n");
3440 return -1;
3441 }
3442 DEBUG(printk(KERN_DEBUG "usbvision_audio_on: channel %d\n", usbvision->AudioChannel));
3443 usbvision->AudioMute = 0;
3444 return 0;
3445}
3446
3447static int usbvision_audio_mute(struct usb_usbvision *usbvision)
3448{
3449 if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, 0x03) < 0) {
3450 printk(KERN_ERR "usbvision_audio_mute: can't wirte reg\n");
3451 return -1;
3452 }
3453 DEBUG(printk(KERN_DEBUG "usbvision_audio_mute: audio mute\n"));
3454 usbvision->AudioMute = 1;
3455 return 0;
3456}
3457
3458static int usbvision_audio_off(struct usb_usbvision *usbvision)
3459{
3460 if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, USBVISION_AUDIO_MUTE) < 0) {
3461 printk(KERN_ERR "usbvision_audio_off: can't wirte reg\n");
3462 return -1;
3463 }
3464 DEBUG(printk(KERN_DEBUG "usbvision_audio_off: audio off\n"));
3465 usbvision->AudioMute = 0;
3466 usbvision->AudioChannel = USBVISION_AUDIO_MUTE;
3467 return 0;
3468}
3469
3470static int usbvision_set_audio(struct usb_usbvision *usbvision, int AudioChannel)
3471{
3472 if (!usbvision->AudioMute) {
3473 if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, AudioChannel) < 0) {
3474 printk(KERN_ERR "usbvision_set_audio: can't write iopin register for audio switching\n");
3475 return -1;
3476 }
3477 }
3478 DEBUG(printk(KERN_DEBUG "usbvision_set_audio: channel %d\n", AudioChannel));
3479 usbvision->AudioChannel = AudioChannel;
3480 return 0;
3481}
3482
3483static int usbvision_setup(struct usb_usbvision *usbvision)
3484{
3485 usbvision_set_video_format(usbvision, isocMode);
3486 usbvision_set_dram_settings(usbvision);
3487 usbvision_set_compress_params(usbvision);
3488 usbvision_set_input(usbvision);
3489 usbvision_set_output(usbvision, MAX_USB_WIDTH, MAX_USB_HEIGHT);
3490 usbvision_restart_isoc(usbvision);
18d8a454 3491
781aa1d1
MCC		 3492 /* cosas del PCM */
3493 return USBVISION_IS_OPERATIONAL(usbvision);
3494}
3495
3496
3497/*
3498 * usbvision_init_isoc()
3499 *
3500 */
3501static int usbvision_init_isoc(struct usb_usbvision *usbvision)
3502{
3503 struct usb_device *dev = usbvision->dev;
3504 int bufIdx, errCode, regValue;
3505
3506 if (!USBVISION_IS_OPERATIONAL(usbvision))
3507 return -EFAULT;
3508
f2242ee5 3509 usbvision->curFrame = NULL;
781aa1d1
MCC		 3510 scratch_reset(usbvision);
3511
3512 /* Alternate interface 1 is is the biggest frame size */
3513 errCode = usb_set_interface(dev, usbvision->iface, usbvision->ifaceAltActive);
3514 if (errCode < 0) {
3515 usbvision->last_error = errCode;
3516 return -EBUSY;
3517 }
3518
3519 regValue = (16 - usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F;
3520 usbvision->isocPacketSize = (regValue == 0) ? 0 : (regValue * 64) - 1;
3521 PDEBUG(DBG_ISOC, "ISO Packet Length:%d", usbvision->isocPacketSize);
3522
3523 usbvision->usb_bandwidth = regValue >> 1;
3524 PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", usbvision->usb_bandwidth);
3525
3526
3527
3528 /* We double buffer the Iso lists */
3529
3530 for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) {
3531 int j, k;
3532 struct urb *urb;
3533
3534 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
3535 urb = usb_alloc_urb(USBVISION_URB_FRAMES);
3536 #else
3537 urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
3538 #endif
3539 if (urb == NULL) {
3540 err("%s: usb_alloc_urb() failed", __FUNCTION__);
3541 return -ENOMEM;
3542 }
3543 usbvision->sbuf[bufIdx].urb = urb;
3544 urb->dev = dev;
3545 urb->context = usbvision;
3546 urb->pipe = usb_rcvisocpipe(dev, usbvision->video_endp);
3547 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
3548 urb->transfer_flags = USB_ISO_ASAP;
3549 #else
3550 urb->transfer_flags = URB_ISO_ASAP;
3551 urb->interval = 1;
3552 #endif
3553 urb->transfer_buffer = usbvision->sbuf[bufIdx].data;
3554 urb->complete = usbvision_isocIrq;
3555 urb->number_of_packets = USBVISION_URB_FRAMES;
3556 urb->transfer_buffer_length =
3557 usbvision->isocPacketSize * USBVISION_URB_FRAMES;
3558 for (j = k = 0; j < USBVISION_URB_FRAMES; j++,
3559 k += usbvision->isocPacketSize) {
3560 urb->iso_frame_desc[j].offset = k;
3561 urb->iso_frame_desc[j].length = usbvision->isocPacketSize;
3562 }
3563 }
3564
3565
3566 /* Submit all URBs */
3567 for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) {
3568 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
3569 errCode = usb_submit_urb(usbvision->sbuf[bufIdx].urb);
3570 #else
3571 errCode = usb_submit_urb(usbvision->sbuf[bufIdx].urb, GFP_KERNEL);
3572 #endif
3573 if (errCode) {
3574 err("%s: usb_submit_urb(%d) failed: error %d", __FUNCTION__, bufIdx, errCode);
3575 }
3576 }
3577
5f7fb877 3578 usbvision->streaming = Stream_Idle;
781aa1d1
MCC		 3579 PDEBUG(DBG_ISOC, "%s: streaming=1 usbvision->video_endp=$%02x", __FUNCTION__, usbvision->video_endp);
3580 return 0;
3581}
3582
3583/*
3584 * usbvision_stop_isoc()
3585 *
3586 * This procedure stops streaming and deallocates URBs. Then it
3587 * activates zero-bandwidth alt. setting of the video interface.
3588 *
3589 */
3590static void usbvision_stop_isoc(struct usb_usbvision *usbvision)
3591{
3592 int bufIdx, errCode, regValue;
3593
5f7fb877 3594 if ((usbvision->streaming == Stream_Off) || (usbvision->dev == NULL))
781aa1d1
MCC		 3595 return;
3596
3597 /* Unschedule all of the iso td's */
3598 for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) {
3599 usb_kill_urb(usbvision->sbuf[bufIdx].urb);
3600 usb_free_urb(usbvision->sbuf[bufIdx].urb);
3601 usbvision->sbuf[bufIdx].urb = NULL;
18d8a454 3602 }
781aa1d1
MCC		 3603
3604
f2242ee5
TM		 3605 PDEBUG(DBG_ISOC, "%s: streaming=Stream_Off\n", __FUNCTION__);
3606 usbvision->streaming = Stream_Off;
781aa1d1
MCC		 3607
3608 if (!usbvision->remove_pending) {
3609
3610 /* Set packet size to 0 */
3611 errCode = usb_set_interface(usbvision->dev, usbvision->iface,
3612 usbvision->ifaceAltInactive);
3613 if (errCode < 0) {
3614 err("%s: usb_set_interface() failed: error %d", __FUNCTION__, errCode);
3615 usbvision->last_error = errCode;
3616 }
3617 regValue = (16 - usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F;
3618 usbvision->isocPacketSize = (regValue == 0) ? 0 : (regValue * 64) - 1;
3619 PDEBUG(DBG_ISOC, "ISO Packet Length:%d", usbvision->isocPacketSize);
3620
3621 usbvision->usb_bandwidth = regValue >> 1;
3622 PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", usbvision->usb_bandwidth);
3623 }
3624}
3625
f2242ee5 3626static int usbvision_muxsel(struct usb_usbvision *usbvision, int channel)
781aa1d1
MCC		 3627{
3628 int mode[4];
18d8a454 3629 int audio[]= {1, 0, 0, 0};
781aa1d1
MCC		 3630 struct v4l2_routing route;
3631 //channel 0 is TV with audiochannel 1 (tuner mono)
3632 //channel 1 is Composite with audio channel 0 (line in)
3633 //channel 2 is S-Video with audio channel 0 (line in)
3634 //channel 3 is additional video inputs to the device with audio channel 0 (line in)
3635
3636 RESTRICT_TO_RANGE(channel, 0, usbvision->video_inputs);
f2242ee5 3637 usbvision->ctl_input = channel;
781aa1d1
MCC		 3638 route.input = SAA7115_COMPOSITE1;
3639 call_i2c_clients(usbvision, VIDIOC_INT_S_VIDEO_ROUTING,&route);
f2242ee5 3640 call_i2c_clients(usbvision, VIDIOC_S_INPUT, &usbvision->ctl_input);
781aa1d1
MCC		 3641
3642 // set the new channel
3643 // Regular USB TV Tuners -> channel: 0 = Television, 1 = Composite, 2 = S-Video
18d8a454 3644 // Four video input devices -> channel: 0 = Chan White, 1 = Chan Green, 2 = Chan Yellow, 3 = Chan Red
781aa1d1
MCC		 3645
3646 switch (usbvision_device_data[usbvision->DevModel].Codec) {
3647 case CODEC_SAA7113:
3648 if (SwitchSVideoInput) { // To handle problems with S-Video Input for some devices. Use SwitchSVideoInput parameter when loading the module.
3649 mode[2] = 1;
3650 }
3651 else {
3652 mode[2] = 7;
3653 }
18d8a454 3654 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
781aa1d1
MCC		 3655 mode[0] = 0; mode[1] = 2; mode[3] = 3; // Special for four input devices
3656 }
18d8a454 3657 else {
781aa1d1
MCC		 3658 mode[0] = 0; mode[1] = 2; //modes for regular saa7113 devices
3659 }
3660 break;
3661 case CODEC_SAA7111:
3662 mode[0] = 0; mode[1] = 1; mode[2] = 7; //modes for saa7111
3663 break;
3664 default:
3665 mode[0] = 0; mode[1] = 1; mode[2] = 7; //default modes
3666 }
3667 route.input = mode[channel];
3668 call_i2c_clients(usbvision, VIDIOC_INT_S_VIDEO_ROUTING,&route);
3669 usbvision->channel = channel;
3670 usbvision_set_audio(usbvision, audio[channel]);
3671 return 0;
3672}
3673
3674
3675/*
3676 * usbvision_open()
3677 *
3678 * This is part of Video 4 Linux API. The driver can be opened by one
3679 * client only (checks internal counter 'usbvision->user'). The procedure
3680 * then allocates buffers needed for video processing.
3681 *
3682 */
3683static int usbvision_v4l2_open(struct inode *inode, struct file *file)
3684{
3685 struct video_device *dev = video_devdata(file);
3686 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
3687 const int sb_size = USBVISION_URB_FRAMES * USBVISION_MAX_ISOC_PACKET_SIZE;
3688 int i, errCode = 0;
3689
3690 PDEBUG(DBG_IO, "open");
3691
3692
3693 if (timer_pending(&usbvision->powerOffTimer)) {
3694 del_timer(&usbvision->powerOffTimer);
3695 }
3696
3697 if (usbvision->user)
3698 errCode = -EBUSY;
3699 else {
3700 /* Clean pointers so we know if we allocated something */
3701 for (i = 0; i < USBVISION_NUMSBUF; i++)
3702 usbvision->sbuf[i].data = NULL;
3703
3704 /* Allocate memory for the frame buffers */
3705 usbvision->max_frame_size = MAX_FRAME_SIZE;
3706 usbvision->fbuf_size = USBVISION_NUMFRAMES * usbvision->max_frame_size;
3707 usbvision->fbuf = usbvision_rvmalloc(usbvision->fbuf_size);
3708 usbvision->scratch = vmalloc(scratch_buf_size);
3709 scratch_reset(usbvision);
3710 if ((usbvision->fbuf == NULL) || (usbvision->scratch == NULL)) {
3711 err("%s: unable to allocate %d bytes for fbuf and %d bytes for scratch",
3712 __FUNCTION__, usbvision->fbuf_size, scratch_buf_size);
3713 errCode = -ENOMEM;
3714 }
3715 else {
f2242ee5
TM		 3716 spin_lock_init(&usbvision->queue_lock);
3717 init_waitqueue_head(&usbvision->wait_frame);
3718 init_waitqueue_head(&usbvision->wait_stream);
3719
781aa1d1
MCC		 3720 /* Allocate all buffers */
3721 for (i = 0; i < USBVISION_NUMFRAMES; i++) {
f2242ee5 3722 usbvision->frame[i].index = i;
781aa1d1
MCC		 3723 usbvision->frame[i].grabstate = FrameState_Unused;
3724 usbvision->frame[i].data = usbvision->fbuf +
3725 i * MAX_FRAME_SIZE;
3726 /*
3727 * Set default sizes in case IOCTL
3728 * (VIDIOCMCAPTURE)
3729 * is not used (using read() instead).
3730 */
3731 usbvision->stretch_width = 1;
3732 usbvision->stretch_height = 1;
3733 usbvision->frame[i].width = usbvision->curwidth;
3734 usbvision->frame[i].height = usbvision->curheight;
3735 usbvision->frame[i].bytes_read = 0;
3736 }
3737 if (dga) { //set default for DGA
3738 usbvision->overlay_frame.grabstate = FrameState_Unused;
3739 usbvision->overlay_frame.scanstate = ScanState_Scanning;
3740 usbvision->overlay_frame.data = NULL;
3741 usbvision->overlay_frame.width = usbvision->curwidth;
3742 usbvision->overlay_frame.height = usbvision->curheight;
3743 usbvision->overlay_frame.bytes_read = 0;
3744 }
3745 for (i = 0; i < USBVISION_NUMSBUF; i++) {
3746 usbvision->sbuf[i].data = kzalloc(sb_size, GFP_KERNEL);
3747 if (usbvision->sbuf[i].data == NULL) {
3748 err("%s: unable to allocate %d bytes for sbuf", __FUNCTION__, sb_size);
3749 errCode = -ENOMEM;
3750 break;
3751 }
3752 }
3753 }
3754 if ((!errCode) && (usbvision->isocMode==ISOC_MODE_COMPRESS)) {
3755 int IFB_size = MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * 3 / 2;
3756 usbvision->IntraFrameBuffer = vmalloc(IFB_size);
3757 if (usbvision->IntraFrameBuffer == NULL) {
3758 err("%s: unable to allocate %d for compr. frame buffer", __FUNCTION__, IFB_size);
3759 errCode = -ENOMEM;
3760 }
18d8a454 3761
781aa1d1
MCC		 3762 }
3763 if (errCode) {
3764 /* Have to free all that memory */
3765 if (usbvision->fbuf != NULL) {
3766 usbvision_rvfree(usbvision->fbuf, usbvision->fbuf_size);
3767 usbvision->fbuf = NULL;
3768 }
3769 if (usbvision->scratch != NULL) {
3770 vfree(usbvision->scratch);
3771 usbvision->scratch = NULL;
3772 }
3773 for (i = 0; i < USBVISION_NUMSBUF; i++) {
3774 if (usbvision->sbuf[i].data != NULL) {
3775 kfree(usbvision->sbuf[i].data);
3776 usbvision->sbuf[i].data = NULL;
3777 }
3778 }
3779 if (usbvision->IntraFrameBuffer != NULL) {
3780 vfree(usbvision->IntraFrameBuffer);
3781 usbvision->IntraFrameBuffer = NULL;
3782 }
3783 }
3784 }
3785
3786 /* If so far no errors then we shall start the camera */
3787 if (!errCode) {
3788 down(&usbvision->lock);
3789 if (usbvision->power == 0) {
3790 usbvision_power_on(usbvision);
3791 usbvision_init_i2c(usbvision);
3792 }
3793
3794 /* Send init sequence only once, it's large! */
3795 if (!usbvision->initialized) {
3796 int setup_ok = 0;
3797 setup_ok = usbvision_setup(usbvision);
3798 if (setup_ok)
3799 usbvision->initialized = 1;
3800 else
3801 errCode = -EBUSY;
3802 }
3803
3804 if (!errCode) {
3805 usbvision_begin_streaming(usbvision);
3806 errCode = usbvision_init_isoc(usbvision);
957883d0
TM		 3807 /* device needs to be initialized before isoc transfer */
3808 usbvision_muxsel(usbvision,0);
781aa1d1
MCC		 3809 usbvision->user++;
3810 }
3811 else {
3812 if (PowerOnAtOpen) {
3813 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
3814 usbvision_power_off(usbvision);
3815 usbvision->initialized = 0;
3816 }
3817 }
3818 up(&usbvision->lock);
3819 }
3820
3821 if (errCode) {
3822 }
3823
f2242ee5
TM		 3824 /* prepare queues */
3825 usbvision_empty_framequeues(usbvision);
3826
781aa1d1
MCC		 3827 PDEBUG(DBG_IO, "success");
3828 return errCode;
3829}
3830
3831/*
3832 * usbvision_v4l2_close()
3833 *
3834 * This is part of Video 4 Linux API. The procedure
3835 * stops streaming and deallocates all buffers that were earlier
3836 * allocated in usbvision_v4l2_open().
3837 *
3838 */
3839static int usbvision_v4l2_close(struct inode *inode, struct file *file)
3840{
3841 struct video_device *dev = video_devdata(file);
3842 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
3843 int i;
3844
3845 PDEBUG(DBG_IO, "close");
3846 down(&usbvision->lock);
3847
3848 usbvision_audio_off(usbvision);
3849 usbvision_restart_isoc(usbvision);
3850 usbvision_stop_isoc(usbvision);
3851
3852 if (usbvision->IntraFrameBuffer != NULL) {
3853 vfree(usbvision->IntraFrameBuffer);
3854 usbvision->IntraFrameBuffer = NULL;
3855 }
3856
3857 usbvision_rvfree(usbvision->fbuf, usbvision->fbuf_size);
3858 vfree(usbvision->scratch);
3859 for (i = 0; i < USBVISION_NUMSBUF; i++)
3860 kfree(usbvision->sbuf[i].data);
3861
3862 usbvision->user--;
3863
3864 if (PowerOnAtOpen) {
3865 mod_timer(&usbvision->powerOffTimer, jiffies + USBVISION_POWEROFF_TIME);
3866 usbvision->initialized = 0;
3867 }
3868
3869 up(&usbvision->lock);
3870
3871 if (usbvision->remove_pending) {
3872 info("%s: Final disconnect", __FUNCTION__);
3873 usbvision_release(usbvision);
3874 }
3875
3876 PDEBUG(DBG_IO, "success");
3877
3878
3879 return 0;
3880}
3881
3882
3883/*
3884 * usbvision_ioctl()
3885 *
3886 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
3887 *
3888 */
3889static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
3890 unsigned int cmd, void *arg)
3891{
3892 struct video_device *dev = video_devdata(file);
3893 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
3894
3895 if (!USBVISION_IS_OPERATIONAL(usbvision))
3896 return -EFAULT;
3897
f2242ee5
TM		 3898 // if (debug & DBG_IOCTL) v4l_printk_ioctl(cmd);
3899
781aa1d1 3900 switch (cmd) {
40bad678
TM		 3901
3902#ifdef CONFIG_VIDEO_ADV_DEBUG
3903 /* ioctls to allow direct acces to the NT100x registers */
3904 case VIDIOC_INT_G_REGISTER:
781aa1d1 3905 {
40bad678 3906 struct v4l2_register *reg = arg;
781aa1d1
MCC		 3907 int errCode;
3908
40bad678
TM		 3909 if (reg->i2c_id != 0)
3910 return -EINVAL;
3911 /* NT100x has a 8-bit register space */
3912 errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
781aa1d1 3913 if (errCode < 0) {
40bad678 3914 err("%s: VIDIOC_INT_G_REGISTER failed: error %d", __FUNCTION__, errCode);
781aa1d1
MCC		 3915 }
3916 else {
40bad678
TM		 3917 reg->val=(unsigned char)errCode;
3918 PDEBUG(DBG_IOCTL, "VIDIOC_INT_G_REGISTER reg=0x%02X, value=0x%02X",
3919 (unsigned int)reg->reg, reg->val);
3920 errCode = 0; // No error
781aa1d1
MCC		 3921 }
3922 return errCode;
3923 }
40bad678 3924 case VIDIOC_INT_S_REGISTER:
781aa1d1 3925 {
40bad678 3926 struct v4l2_register *reg = arg;
781aa1d1
MCC		 3927 int errCode;
3928
40bad678
TM		 3929 if (reg->i2c_id != 0)
3930 return -EINVAL;
3931 if (!capable(CAP_SYS_ADMIN))
3932 return -EPERM;
3933 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
781aa1d1 3934 if (errCode < 0) {
40bad678 3935 err("%s: VIDIOC_INT_S_REGISTER failed: error %d", __FUNCTION__, errCode);
781aa1d1
MCC		 3936 }
3937 else {
40bad678
TM		 3938 PDEBUG(DBG_IOCTL, "VIDIOC_INT_S_REGISTER reg=0x%02X, value=0x%02X",
3939 (unsigned int)reg->reg, reg->val);
3940 errCode = 0;
781aa1d1 3941 }
40bad678 3942 return 0;
781aa1d1 3943 }
40bad678 3944#endif
781aa1d1
MCC		 3945 case VIDIOC_QUERYCAP:
3946 {
3947 struct v4l2_capability *vc=arg;
f2242ee5
TM		 3948
3949 memset(vc, 0, sizeof(*vc));
3950 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
3951 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString,
3952 sizeof(vc->card));
3953 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
3954 sizeof(vc->bus_info));
3955 vc->version = USBVISION_DRIVER_VERSION;
3956 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
3957 V4L2_CAP_AUDIO |
3958 V4L2_CAP_READWRITE |
3959 V4L2_CAP_STREAMING |
3960 (dga ? (V4L2_FBUF_CAP_LIST_CLIPPING | V4L2_CAP_VIDEO_OVERLAY) : 0) |
3961 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
781aa1d1
MCC		 3962 PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP");
3963 return 0;
3964 }
3965 case VIDIOC_ENUMINPUT:
3966 {
3967 struct v4l2_input *vi = arg;
3968 int chan;
3969
3970 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
3971 return -EINVAL;
3972 if (usbvision->have_tuner) {
3973 chan = vi->index;
3974 }
3975 else {
3976 chan = vi->index + 1; //skip Television string
3977 }
3978 switch(chan) {
3979 case 0:
3980 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
3981 strcpy(vi->name, "White Video Input");
18d8a454
DG		 3982 }
3983 else {
781aa1d1
MCC		 3984 strcpy(vi->name, "Television");
3985 vi->type = V4L2_INPUT_TYPE_TUNER;
3986 vi->audioset = 1;
3987 vi->tuner = chan;
3988 vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM;
3989 }
3990 break;
3991 case 1:
18d8a454 3992 vi->type = V4L2_INPUT_TYPE_CAMERA;
781aa1d1
MCC		 3993 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
3994 strcpy(vi->name, "Green Video Input");
18d8a454
DG		 3995 }
3996 else {
781aa1d1
MCC		 3997 strcpy(vi->name, "Composite Video Input");
3998 }
3999 vi->std = V4L2_STD_PAL;
4000 break;
4001 case 2:
18d8a454 4002 vi->type = V4L2_INPUT_TYPE_CAMERA;
781aa1d1
MCC		 4003 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
4004 strcpy(vi->name, "Yellow Video Input");
18d8a454
DG		 4005 }
4006 else {
781aa1d1
MCC		 4007 strcpy(vi->name, "S-Video Input");
4008 }
4009 vi->std = V4L2_STD_PAL;
4010 break;
4011 case 3:
18d8a454 4012 vi->type = V4L2_INPUT_TYPE_CAMERA;
781aa1d1
MCC		 4013 strcpy(vi->name, "Red Video Input");
4014 vi->std = V4L2_STD_PAL;
18d8a454 4015 break;
781aa1d1
MCC		 4016 }
4017 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);
4018 return 0;
4019 }
4020 case VIDIOC_ENUMSTD:
4021 {
f2242ee5
TM		 4022 struct v4l2_standard *e = arg;
4023 unsigned int i;
4024 int ret;
4025
4026 i = e->index;
4027 if (i >= TVNORMS)
781aa1d1 4028 return -EINVAL;
f2242ee5
TM		 4029 ret = v4l2_video_std_construct(e, tvnorms[e->index].id,
4030 tvnorms[e->index].name);
4031 e->index = i;
4032 if (ret < 0)
4033 return ret;
781aa1d1
MCC		 4034 return 0;
4035 }
18d8a454 4036 case VIDIOC_G_INPUT:
781aa1d1
MCC		 4037 {
4038 int *input = arg;
f2242ee5 4039 *input = usbvision->ctl_input;
781aa1d1
MCC		 4040 return 0;
4041 }
18d8a454 4042 case VIDIOC_S_INPUT:
781aa1d1
MCC		 4043 {
4044 int *input = arg;
4045 if ((*input >= usbvision->video_inputs) || (*input < 0) )
4046 return -EINVAL;
f2242ee5 4047 usbvision->ctl_input = *input;
781aa1d1
MCC		 4048
4049 down(&usbvision->lock);
f2242ee5 4050 usbvision_muxsel(usbvision, usbvision->ctl_input);
781aa1d1
MCC		 4051 usbvision_set_input(usbvision);
4052 usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight);
4053 up(&usbvision->lock);
4054 return 0;
4055 }
18d8a454 4056 case VIDIOC_G_STD:
781aa1d1 4057 {
f2242ee5
TM		 4058 v4l2_std_id *id = arg;
4059
4060 *id = usbvision->tvnorm->id;
4061
4062 PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%s", usbvision->tvnorm->name);
781aa1d1
MCC		 4063 return 0;
4064 }
18d8a454 4065 case VIDIOC_S_STD:
781aa1d1 4066 {
f2242ee5
TM		 4067 v4l2_std_id *id = arg;
4068 unsigned int i;
4069
4070 for (i = 0; i < TVNORMS; i++)
4071 if (*id == tvnorms[i].id)
4072 break;
4073 if (i == TVNORMS)
4074 for (i = 0; i < TVNORMS; i++)
4075 if (*id & tvnorms[i].id)
4076 break;
4077 if (i == TVNORMS)
4078 return -EINVAL;
781aa1d1
MCC		 4079
4080 down(&usbvision->lock);
f2242ee5
TM		 4081 usbvision->tvnorm = &tvnorms[i];
4082
4083 call_i2c_clients(usbvision, VIDIOC_S_STD,
4084 &usbvision->tvnorm->id);
4085
781aa1d1
MCC		 4086 up(&usbvision->lock);
4087
f2242ee5 4088 PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%s", usbvision->tvnorm->name);
781aa1d1
MCC		 4089 return 0;
4090 }
18d8a454 4091 case VIDIOC_G_TUNER:
781aa1d1
MCC		 4092 {
4093 struct v4l2_tuner *vt = arg;
781aa1d1
MCC		 4094
4095 if (!usbvision->have_tuner || vt->index) // Only tuner 0
4096 return -EINVAL;
4097 strcpy(vt->name, "Television");
f2242ee5
TM		 4098 /* Let clients fill in the remainder of this struct */
4099 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
4100
4101 PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER signal=%x, afc=%x",vt->signal,vt->afc);
781aa1d1
MCC		 4102 return 0;
4103 }
4104 case VIDIOC_S_TUNER:
4105 {
4106 struct v4l2_tuner *vt = arg;
4107
4108 // Only no or one tuner for now
4109 if (!usbvision->have_tuner || vt->index)
4110 return -EINVAL;
f2242ee5
TM		 4111 /* let clients handle this */
4112 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
4113
781aa1d1
MCC		 4114 PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER");
4115 return 0;
4116 }
4117 case VIDIOC_G_FREQUENCY:
4118 {
4119 struct v4l2_frequency *freq = arg;
f2242ee5 4120
781aa1d1
MCC		 4121 freq->tuner = 0; // Only one tuner
4122 freq->type = V4L2_TUNER_ANALOG_TV;
4123 freq->frequency = usbvision->freq;
4124 PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
4125 return 0;
4126 }
4127 case VIDIOC_S_FREQUENCY:
4128 {
4129 struct v4l2_frequency *freq = arg;
f2242ee5
TM		 4130
4131 // Only no or one tuner for now
4132 if (!usbvision->have_tuner || freq->tuner)
4133 return -EINVAL;
4134
781aa1d1
MCC		 4135 usbvision->freq = freq->frequency;
4136 call_i2c_clients(usbvision, cmd, freq);
4137 PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
4138 return 0;
4139 }
4140 case VIDIOC_G_AUDIO:
4141 {
4142 struct v4l2_audio *v = arg;
4143 memset(v,0, sizeof(v));
4144 strcpy(v->name, "TV");
4145 PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO");
4146 // FIXME: no more processings ???
4147 return 0;
4148 }
4149 case VIDIOC_S_AUDIO:
4150 {
4151 struct v4l2_audio *v = arg;
4152 if(v->index) {
4153 return -EINVAL;
4154 }
4155 PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO");
4156 // FIXME: void function ???
4157 return 0;
4158 }
18d8a454 4159 case VIDIOC_QUERYCTRL:
781aa1d1 4160 {
18d8a454
DG		 4161 struct v4l2_queryctrl *ctrl = arg;
4162 int id=ctrl->id;
4163
4164 memset(ctrl,0,sizeof(*ctrl));
4165 ctrl->id=id;
4166
957883d0 4167 call_i2c_clients(usbvision, cmd, arg);
18d8a454
DG		 4168
4169 if (ctrl->type)
4170 return 0;
4171 else
781aa1d1 4172 return -EINVAL;
18d8a454
DG		 4173
4174 PDEBUG(DBG_IOCTL,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type);
781aa1d1
MCC		 4175 }
4176 case VIDIOC_G_CTRL:
4177 {
4178 struct v4l2_control *ctrl = arg;
4179
18d8a454
DG		 4180 PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
4181 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
781aa1d1
MCC		 4182 return 0;
4183 }
4184 case VIDIOC_S_CTRL:
4185 {
4186 struct v4l2_control *ctrl = arg;
18d8a454 4187
781aa1d1
MCC		 4188 PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value);
4189 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
4190 return 0;
4191 }
4192 case VIDIOC_REQBUFS:
4193 {
4194 struct v4l2_requestbuffers *vr = arg;
f2242ee5
TM		 4195 int ret;
4196
4197 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
4198
4199 // Check input validity : the user must do a VIDEO CAPTURE and MMAP method.
4200 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
4201 (vr->memory != V4L2_MEMORY_MMAP))
781aa1d1 4202 return -EINVAL;
f2242ee5
TM		 4203
4204 // FIXME : before this, we must control if buffers are still mapped.
4205 // Then interrupt streaming if so...
4206 if(usbvision->streaming == Stream_On) {
4207 if ((ret = usbvision_stream_interrupt(usbvision)))
4208 return ret;
4209 }
4210
4211 usbvision_empty_framequeues(usbvision);
4212
4213 usbvision->curFrame = NULL;
4214
4215 PDEBUG(DBG_IOCTL, "VIDIOC_REQBUFS count=%d",vr->count);
781aa1d1
MCC		 4216 return 0;
4217 }
4218 case VIDIOC_QUERYBUF:
4219 {
4220 struct v4l2_buffer *vb = arg;
4221 struct usbvision_frame *frame;
4222
f2242ee5
TM		 4223 // FIXME : must control that buffers are mapped (VIDIOC_REQBUFS has been called)
4224
781aa1d1
MCC		 4225 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
4226 return -EINVAL;
4227 }
f2242ee5 4228 if(vb->index>=USBVISION_NUMFRAMES) {
781aa1d1
MCC		 4229 return -EINVAL;
4230 }
f2242ee5 4231 // Updating the corresponding frame state
781aa1d1
MCC		 4232 vb->flags = 0;
4233 frame = &usbvision->frame[vb->index];
f2242ee5 4234 if(frame->grabstate >= FrameState_Ready)
781aa1d1
MCC		 4235 vb->flags |= V4L2_BUF_FLAG_QUEUED;
4236 if(frame->grabstate >= FrameState_Done)
4237 vb->flags |= V4L2_BUF_FLAG_DONE;
4238 if(frame->grabstate == FrameState_Unused)
4239 vb->flags |= V4L2_BUF_FLAG_MAPPED;
4240 vb->memory = V4L2_MEMORY_MMAP;
40bad678
TM		 4241
4242 vb->m.offset = vb->index*MAX_FRAME_SIZE;
4243
f2242ee5
TM		 4244 vb->memory = V4L2_MEMORY_MMAP;
4245 vb->field = V4L2_FIELD_NONE;
781aa1d1
MCC		 4246 vb->length = MAX_FRAME_SIZE;
4247 vb->timestamp = usbvision->frame[vb->index].timestamp;
f2242ee5 4248 vb->sequence = usbvision->frame[vb->index].sequence;
781aa1d1
MCC		 4249 return 0;
4250 }
f2242ee5 4251 case VIDIOC_QBUF:
781aa1d1
MCC		 4252 {
4253 struct v4l2_buffer *vb = arg;
4254 struct usbvision_frame *frame;
f2242ee5 4255 unsigned long lock_flags;
781aa1d1
MCC		 4256
4257 // FIXME : works only on VIDEO_CAPTURE MODE, MMAP.
4258 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
4259 return -EINVAL;
4260 }
f2242ee5 4261 if(vb->index>=USBVISION_NUMFRAMES) {
781aa1d1
MCC		 4262 return -EINVAL;
4263 }
4264
4265 frame = &usbvision->frame[vb->index];
4266
f2242ee5
TM		 4267 if (frame->grabstate != FrameState_Unused) {
4268 return -EAGAIN;
781aa1d1
MCC		 4269 }
4270
f2242ee5 4271 /* Mark it as ready and enqueue frame */
781aa1d1 4272 frame->grabstate = FrameState_Ready;
f2242ee5
TM		 4273 frame->scanstate = ScanState_Scanning;
4274 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
4275
781aa1d1
MCC		 4276 vb->flags &= ~V4L2_BUF_FLAG_DONE;
4277
4278 /* set v4l2_format index */
4279 frame->v4l2_format = usbvision->palette;
4280
f2242ee5
TM		 4281 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
4282 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
4283 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
4284
3084920b 4285 PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame #%d",vb->index);
f2242ee5 4286 return 0;
781aa1d1
MCC		 4287 }
4288 case VIDIOC_DQBUF:
4289 {
4290 struct v4l2_buffer *vb = arg;
f2242ee5
TM		 4291 int ret;
4292 struct usbvision_frame *f;
4293 unsigned long lock_flags;
781aa1d1 4294
f2242ee5 4295 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
781aa1d1
MCC		 4296 return -EINVAL;
4297
f2242ee5 4298 if (list_empty(&(usbvision->outqueue))) {
5f7fb877 4299 if (usbvision->streaming == Stream_Idle)
f2242ee5
TM		 4300 return -EINVAL;
4301 ret = wait_event_interruptible
4302 (usbvision->wait_frame,
4303 !list_empty(&(usbvision->outqueue)));
4304 if (ret)
4305 return ret;
781aa1d1
MCC		 4306 }
4307
f2242ee5
TM		 4308 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
4309 f = list_entry(usbvision->outqueue.next,
4310 struct usbvision_frame, frame);
4311 list_del(usbvision->outqueue.next);
4312 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
4313
4314 f->grabstate = FrameState_Unused;
4315
4316 vb->memory = V4L2_MEMORY_MMAP;
4317 vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE;
4318 vb->index = f->index;
4319 vb->sequence = f->sequence;
3084920b
TM		 4320 vb->timestamp = f->timestamp;
4321 vb->field = V4L2_FIELD_NONE;
4322 vb->bytesused = f->scanlength;
f2242ee5 4323
3084920b
TM		 4324 if(debug & DBG_IOCTL) { // do not spend computing time for debug stuff if not needed !
4325 if(usbvision_counter == 100) {
4326 PDEBUG(DBG_IOCTL, "VIDIOC_DQBUF delta=%d",(unsigned)(jiffies-usbvision_timestamp));
4327 usbvision_counter = 0;
4328 usbvision_timestamp = jiffies;
4329 }
4330 else {
4331 usbvision_counter++;
4332 }
4333 PDEBUG(DBG_IOCTL, "VIDIOC_DQBUF frame #%d",vb->index);
4334 }
f2242ee5 4335 return 0;
781aa1d1
MCC		 4336 }
4337 case VIDIOC_STREAMON:
4338 {
4339 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
f2242ee5 4340
f2242ee5
TM		 4341 usbvision->streaming = Stream_On;
4342
3084920b
TM		 4343 if(debug & DBG_IOCTL) usbvision_timestamp = jiffies;
4344
18d8a454 4345 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
f2242ee5
TM		 4346
4347 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMON");
4348
781aa1d1
MCC		 4349 return 0;
4350 }
4351 case VIDIOC_STREAMOFF:
4352 {
f2242ee5 4353 int *type = arg;
781aa1d1 4354 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
f2242ee5
TM		 4355
4356 if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
4357 return -EINVAL;
4358
4359 if(usbvision->streaming == Stream_On) {
4360 usbvision_stream_interrupt(usbvision);
4361 // Stop all video streamings
4362 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
4363 }
4364 usbvision_empty_framequeues(usbvision);
4365
4366 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMOFF");
781aa1d1
MCC		 4367 return 0;
4368 }
18d8a454 4369 case VIDIOC_G_FBUF:
781aa1d1
MCC		 4370 {
4371 struct v4l2_framebuffer *vb = arg;
4372
4373 if (dga) {
4374 *vb = usbvision->vid_buf;
4375 }
4376 else {
4377 memset(vb, 0, sizeof(vb)); //dga not supported, not used
4378 }
4379 PDEBUG(DBG_IOCTL, "VIDIOC_G_FBUF base=%p, width=%d, height=%d, pixelformat=%d, bpl=%d",
4380 vb->base, vb->fmt.width, vb->fmt.height, vb->fmt.pixelformat,vb->fmt.bytesperline);
4381 return 0;
4382 }
4383 case VIDIOC_S_FBUF:
4384 {
4385 struct v4l2_framebuffer *vb = arg;
4386 int formatIdx;
4387
4388 if (dga == 0) {
4389 return -EINVAL;
4390 }
4391
4392 if(!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_ADMIN)) {
4393 return -EPERM;
4394 }
4395
4396 PDEBUG(DBG_IOCTL, "VIDIOC_S_FBUF base=%p, width=%d, height=%d, pixelformat=%d, bpl=%d",
4397 vb->base, vb->fmt.width, vb->fmt.height, vb->fmt.pixelformat,vb->fmt.bytesperline);
4398
4399 for (formatIdx=0; formatIdx <= USBVISION_SUPPORTED_PALETTES; formatIdx++) {
4400 if (formatIdx == USBVISION_SUPPORTED_PALETTES) {
4401 return -EINVAL; // no matching video_format
4402 }
4403 if ((vb->fmt.pixelformat == usbvision_v4l2_format[formatIdx].format) &&
4404 (usbvision_v4l2_format[formatIdx].supported)) {
4405 break; //found matching video_format
4406 }
4407 }
4408
4409 if (vb->fmt.bytesperline<1) {
4410 return -EINVAL;
4411 }
4412 if (usbvision->overlay) {
4413 return -EBUSY;
4414 }
4415 down(&usbvision->lock);
4416 if (usbvision->overlay_base) {
4417 iounmap(usbvision->overlay_base);
4418 usbvision->vid_buf_valid = 0;
4419 }
4420 usbvision->overlay_base = ioremap((ulong)vb->base, vb->fmt.height * vb->fmt.bytesperline);
4421 if (usbvision->overlay_base) {
4422 usbvision->vid_buf_valid = 1;
4423 }
4424 usbvision->vid_buf = *vb;
4425 usbvision->overlay_frame.v4l2_format = usbvision_v4l2_format[formatIdx];
4426 up(&usbvision->lock);
4427 return 0;
4428 }
4429 case VIDIOC_ENUM_FMT:
4430 {
4431 struct v4l2_fmtdesc *vfd = arg;
f2242ee5 4432
781aa1d1
MCC		 4433 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
4434 return -EINVAL;
4435 }
4436 vfd->flags = 0;
3084920b 4437 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
781aa1d1
MCC		 4438 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
4439 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
3084920b 4440 memset(vfd->reserved, 0, sizeof(vfd->reserved));
781aa1d1
MCC		 4441 return 0;
4442 }
4443 case VIDIOC_G_FMT:
4444 {
4445 struct v4l2_format *vf = arg;
18d8a454 4446
3084920b
TM		 4447 switch (vf->type) {
4448 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
4449 {
4450 vf->fmt.pix.width = usbvision->curwidth;
4451 vf->fmt.pix.height = usbvision->curheight;
4452 vf->fmt.pix.pixelformat = usbvision->palette.format;
4453 vf->fmt.pix.bytesperline = usbvision->curwidth*usbvision->palette.bytes_per_pixel;
4454 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
4455 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
4456 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
4457 }
4458 return 0;
4459 default:
4460 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT invalid type %d",vf->type);
4461 return -EINVAL;
781aa1d1 4462 }
3084920b 4463 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT w=%d, h=%d",vf->fmt.win.w.width, vf->fmt.win.w.height);
781aa1d1
MCC		 4464 return 0;
4465 }
3084920b 4466 case VIDIOC_TRY_FMT:
18d8a454 4467 case VIDIOC_S_FMT:
781aa1d1
MCC		 4468 {
4469 struct v4l2_format *vf = arg;
4470 struct v4l2_clip *vc=NULL;
4471 int on,formatIdx;
4472
3084920b
TM		 4473 switch(vf->type) {
4474 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4475 {
4476 if (vf->fmt.win.clipcount>256) {
4477 return -EDOM; /* Too many clips! */
4478 }
4479 // Do every clips.
4480 vc = vmalloc(sizeof(struct v4l2_clip)*(vf->fmt.win.clipcount+4));
4481 if (vc == NULL) {
4482 return -ENOMEM;
4483 }
4484 if (vf->fmt.win.clipcount && copy_from_user(vc,vf->fmt.win.clips,sizeof(struct v4l2_clip)*vf->fmt.win.clipcount)) {
4485 return -EFAULT;
4486 }
4487 on = usbvision->overlay; // Save overlay state
4488 if (on) {
4489 usbvision_cap(usbvision, 0);
4490 }
781aa1d1 4491
3084920b
TM		 4492 // strange, it seems xawtv sometimes calls us with 0
4493 // width and/or height. Ignore these values
4494 if (vf->fmt.win.w.left == 0) {
4495 vf->fmt.win.w.left = usbvision->vid_win.fmt.win.w.left;
4496 }
4497 if (vf->fmt.win.w.top == 0) {
4498 vf->fmt.win.w.top = usbvision->vid_win.fmt.win.w.top;
4499 }
781aa1d1 4500
3084920b
TM		 4501 // by now we are committed to the new data...
4502 down(&usbvision->lock);
4503 RESTRICT_TO_RANGE(vf->fmt.win.w.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
4504 RESTRICT_TO_RANGE(vf->fmt.win.w.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
4505 usbvision->vid_win = *vf;
4506 usbvision->overlay_frame.width = vf->fmt.win.w.width;
4507 usbvision->overlay_frame.height = vf->fmt.win.w.height;
4508 usbvision_set_output(usbvision, vf->fmt.win.w.width, vf->fmt.win.w.height);
4509 up(&usbvision->lock);
4510
4511 // Impose display clips
4512 if (vf->fmt.win.w.left+vf->fmt.win.w.width > (unsigned int)usbvision->vid_buf.fmt.width) {
4513 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);
4514 }
4515 if (vf->fmt.win.w.top+vf->fmt.win.w.height > (unsigned int)usbvision->vid_buf.fmt.height) {
4516 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);
4517 }
781aa1d1 4518
3084920b
TM		 4519 // built the requested clipping zones
4520 usbvision_built_overlay(usbvision, vf->fmt.win.clipcount, vc);
4521 vfree(vc);
781aa1d1 4522
3084920b
TM		 4523 // restore overlay state
4524 if (on) {
4525 usbvision_cap(usbvision, 1);
4526 }
4527 usbvision->vid_win_valid = 1;
4528 PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT overlay x=%d, y=%d, w=%d, h=%d, chroma=%x, clips=%d",
4529 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);
4530 return 0;
781aa1d1 4531 }
3084920b
TM		 4532 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
4533 {
4534 /* Find requested format in available ones */
4535 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
4536 if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) {
4537 usbvision->palette = usbvision_v4l2_format[formatIdx];
4538 break;
4539 }
4540 }
4541 /* robustness */
4542 if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
4543 return -EINVAL;
781aa1d1 4544 }
3084920b
TM		 4545 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
4546 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
4547 // by now we are committed to the new data...
4548 down(&usbvision->lock);
4549 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
4550 up(&usbvision->lock);
4551
4552 PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, format=%s",
4553 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc);
4554 return 0;
781aa1d1 4555 }
3084920b 4556 default:
781aa1d1 4557 return -EINVAL;
781aa1d1 4558 }
781aa1d1
MCC		 4559 }
4560 case VIDIOC_OVERLAY:
4561 {
4562 int *v = arg;
18d8a454 4563
781aa1d1
MCC		 4564 if ( (dga == 0) &&
4565 (usbvision->palette.format != V4L2_PIX_FMT_YVU420) &&
18d8a454 4566 (usbvision->palette.format != V4L2_PIX_FMT_YUV422P) ) {
781aa1d1
MCC		 4567 PDEBUG(DBG_IOCTL, "VIDIOC_OVERLAY DGA disabled");
4568 return -EINVAL;
4569 }
4570
4571 if (*v == 0) {
4572 usbvision_cap(usbvision, 0);
4573 }
4574 else {
4575 // are VIDIOCSFBUF and VIDIOCSWIN done?
4576 if ((usbvision->vid_buf_valid == 0) || (usbvision->vid_win_valid == 0)) {
4577 PDEBUG(DBG_IOCTL, "VIDIOC_OVERLAY vid_buf_valid %d; vid_win_valid %d",
4578 usbvision->vid_buf_valid, usbvision->vid_win_valid);
4579 return -EINVAL;
4580 }
4581 usbvision_cap(usbvision, 1);
4582 }
4583 PDEBUG(DBG_IOCTL, "VIDIOC_OVERLAY %s", (*v)?"on":"off");
4584 return 0;
4585 }
4586 default:
4587 return -ENOIOCTLCMD;
4588 }
4589 return 0;
4590}
4591
4592static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file,
4593 unsigned int cmd, unsigned long arg)
4594{
4595 return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl);
4596}
4597
4598
4599static ssize_t usbvision_v4l2_read(struct file *file, char *buf,
4600 size_t count, loff_t *ppos)
4601{
4602 struct video_device *dev = video_devdata(file);
4603 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
4604 int noblock = file->f_flags & O_NONBLOCK;
3084920b 4605 unsigned long lock_flags;
781aa1d1
MCC		 4606
4607 int frmx = -1;
3084920b 4608 int ret,i;
781aa1d1 4609 struct usbvision_frame *frame;
3084920b 4610
781aa1d1
MCC		 4611 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock);
4612
4613 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
4614 return -EFAULT;
4615
3084920b
TM		 4616 /* no stream is running, make it running ! */
4617 usbvision->streaming = Stream_On;
4618 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
4619
4620 /* First, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */
4621 for(i=0;i<USBVISION_NUMFRAMES;i++) {
4622 frame = &usbvision->frame[i];
4623 if(frame->grabstate == FrameState_Unused) {
4624 /* Mark it as ready and enqueue frame */
4625 frame->grabstate = FrameState_Ready;
4626 frame->scanstate = ScanState_Scanning;
4627 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
781aa1d1 4628
3084920b
TM		 4629 /* set v4l2_format index */
4630 frame->v4l2_format = usbvision->palette;
781aa1d1 4631
3084920b
TM		 4632 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
4633 list_add_tail(&frame->frame, &usbvision->inqueue);
4634 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
4635 }
781aa1d1
MCC		 4636 }
4637
3084920b
TM		 4638 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
4639 if (list_empty(&(usbvision->outqueue))) {
4640 if(noblock)
4641 return -EAGAIN;
781aa1d1 4642
3084920b
TM		 4643 ret = wait_event_interruptible
4644 (usbvision->wait_frame,
4645 !list_empty(&(usbvision->outqueue)));
4646 if (ret)
4647 return ret;
4648 }
781aa1d1 4649
3084920b
TM		 4650 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
4651 frame = list_entry(usbvision->outqueue.next,
4652 struct usbvision_frame, frame);
4653 list_del(usbvision->outqueue.next);
4654 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
781aa1d1 4655
3084920b
TM		 4656 if(debug & DBG_IOCTL) { // do not spend computing time for debug stuff if not needed !
4657 if(usbvision_counter == 100) {
4658 PDEBUG(DBG_IOCTL, "VIDIOC_DQBUF delta=%d",(unsigned)(jiffies-usbvision_timestamp));
4659 usbvision_counter = 0;
4660 usbvision_timestamp = jiffies;
4661 }
4662 else {
4663 usbvision_counter++;
4664 }
781aa1d1
MCC		 4665 }
4666
3084920b 4667 /* An error returns an empty frame */
781aa1d1
MCC		 4668 if (frame->grabstate == FrameState_Error) {
4669 frame->bytes_read = 0;
3084920b 4670 return 0;
781aa1d1
MCC		 4671 }
4672
4673 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__,
3084920b 4674 frame->index, frame->bytes_read, frame->scanlength);
781aa1d1
MCC		 4675
4676 /* copy bytes to user space; we allow for partials reads */
4677 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
4678 count = frame->scanlength - frame->bytes_read;
4679
4680 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
3084920b 4681 return -EFAULT;
781aa1d1
MCC		 4682 }
4683
4684 frame->bytes_read += count;
4685 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", __FUNCTION__,
4686 (unsigned long)count, frame->bytes_read);
4687
3084920b
TM		 4688 // For now, forget the frame if it has not been read in one shot.
4689/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */
781aa1d1
MCC		 4690 frame->bytes_read = 0;
4691
4692 /* Mark it as available to be used again. */
4693 usbvision->frame[frmx].grabstate = FrameState_Unused;
3084920b 4694/* } */
781aa1d1 4695
781aa1d1
MCC		 4696 return count;
4697}
4698
4699static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
4700{
40bad678
TM		 4701 unsigned long size = vma->vm_end - vma->vm_start,
4702 start = vma->vm_start;
4703 void *pos;
4704 u32 i;
4705
781aa1d1
MCC		 4706 struct video_device *dev = video_devdata(file);
4707 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
781aa1d1
MCC		 4708
4709 if (!USBVISION_IS_OPERATIONAL(usbvision))
4710 return -EFAULT;
4711
40bad678
TM		 4712 if (!(vma->vm_flags & VM_WRITE) ||
4713 size != PAGE_ALIGN(usbvision->max_frame_size)) {
4714 return -EINVAL;
4715 }
4716
4717 for (i = 0; i < USBVISION_NUMFRAMES; i++) {
4718 if (((usbvision->max_frame_size*i) >> PAGE_SHIFT) == vma->vm_pgoff)
4719 break;
4720 }
4721 if (i == USBVISION_NUMFRAMES) {
4722 PDEBUG(DBG_FUNC, "mmap: user supplied mapping address is out of range");
781aa1d1 4723 return -EINVAL;
40bad678 4724 }
781aa1d1 4725
40bad678
TM		 4726 /* VM_IO is eventually going to replace PageReserved altogether */
4727 vma->vm_flags |= VM_IO;
4728 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
4729
4730 pos = usbvision->frame[i].data;
781aa1d1 4731 while (size > 0) {
18d8a454 4732
40bad678
TM		 4733 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
4734 PDEBUG(DBG_FUNC, "mmap: vm_insert_page failed");
781aa1d1
MCC		 4735 return -EAGAIN;
4736 }
781aa1d1
MCC		 4737 start += PAGE_SIZE;
4738 pos += PAGE_SIZE;
40bad678 4739 size -= PAGE_SIZE;
781aa1d1
MCC		 4740 }
4741
4742 return 0;
4743}
4744
4745
4746/*
4747 * Here comes the stuff for radio on usbvision based devices
4748 *
4749 */
4750static int usbvision_radio_open(struct inode *inode, struct file *file)
4751{
4752 struct video_device *dev = video_devdata(file);
4753 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
4754 struct v4l2_frequency freq;
4755 int errCode = 0;
4756
4757 PDEBUG(DBG_RIO, "%s:", __FUNCTION__);
4758
4759 down(&usbvision->lock);
4760
4761 if (usbvision->user) {
4762 err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__);
4763 errCode = -EBUSY;
4764 }
4765 else {
4766 if(PowerOnAtOpen) {
4767 if (timer_pending(&usbvision->powerOffTimer)) {
4768 del_timer(&usbvision->powerOffTimer);
4769 }
4770 if (usbvision->power == 0) {
4771 usbvision_power_on(usbvision);
4772 usbvision_init_i2c(usbvision);
4773 }
4774 }
4775
4776 // If so far no errors then we shall start the radio
4777 usbvision->radio = 1;
4778 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
4779 freq.frequency = 1517; //SWR3 @ 94.8MHz
4780 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq);
4781 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
4782 usbvision->user++;
4783 }
4784
4785 if (errCode) {
4786 if (PowerOnAtOpen) {
4787 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
4788 usbvision_power_off(usbvision);
4789 usbvision->initialized = 0;
4790 }
4791 }
4792 up(&usbvision->lock);
4793 return errCode;
4794}
4795
4796
4797static int usbvision_radio_close(struct inode *inode, struct file *file)
4798{
4799 struct video_device *dev = video_devdata(file);
4800 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
4801 int errCode = 0;
4802
4803 PDEBUG(DBG_RIO, "");
4804
4805 down(&usbvision->lock);
4806
4807 usbvision_audio_off(usbvision);
4808 usbvision->radio=0;
4809 usbvision->user--;
4810
4811 if (PowerOnAtOpen) {
4812 mod_timer(&usbvision->powerOffTimer, jiffies + USBVISION_POWEROFF_TIME);
4813 usbvision->initialized = 0;
4814 }
4815
4816 up(&usbvision->lock);
4817
4818 if (usbvision->remove_pending) {
4819 info("%s: Final disconnect", __FUNCTION__);
4820 usbvision_release(usbvision);
4821 }
4822
4823
4824 PDEBUG(DBG_RIO, "success");
4825
4826 return errCode;
4827}
4828
4829static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file,
4830 unsigned int cmd, void *arg)
4831{
4832 struct video_device *dev = video_devdata(file);
4833 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
4834
4835 if (!USBVISION_IS_OPERATIONAL(usbvision))
4836 return -EIO;
4837
4838 switch (cmd) {
18d8a454 4839 case VIDIOC_QUERYCAP:
781aa1d1
MCC		 4840 {
4841 struct v4l2_capability *vc=arg;
3086d6cb
TM		 4842
4843 memset(vc, 0, sizeof(*vc));
4844 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
4845 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString,
4846 sizeof(vc->card));
4847 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
4848 sizeof(vc->bus_info));
4849 vc->version = USBVISION_DRIVER_VERSION;
4850 vc->capabilities = (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
4851 PDEBUG(DBG_RIO, "VIDIOC_QUERYCAP");
781aa1d1
MCC		 4852 return 0;
4853 }
18d8a454 4854 case VIDIOC_QUERYCTRL:
781aa1d1 4855 {
3086d6cb
TM		 4856 struct v4l2_queryctrl *ctrl = arg;
4857 int id=ctrl->id;
4858
4859 memset(ctrl,0,sizeof(*ctrl));
4860 ctrl->id=id;
4861
4862 call_i2c_clients(usbvision, cmd, arg);
4863 PDEBUG(DBG_RIO,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type);
4864
4865 if (ctrl->type)
4866 return 0;
4867 else
4868 return -EINVAL;
4869
781aa1d1 4870 }
18d8a454 4871 case VIDIOC_G_CTRL:
781aa1d1
MCC		 4872 {
4873 struct v4l2_control *ctrl = arg;
3086d6cb
TM		 4874
4875 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
4876 PDEBUG(DBG_RIO,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
781aa1d1
MCC		 4877 return 0;
4878 }
18d8a454 4879 case VIDIOC_S_CTRL:
781aa1d1
MCC		 4880 {
4881 struct v4l2_control *ctrl = arg;
781aa1d1 4882
3086d6cb
TM		 4883 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
4884 PDEBUG(DBG_RIO, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value);
781aa1d1
MCC		 4885 return 0;
4886 }
18d8a454 4887 case VIDIOC_G_TUNER:
781aa1d1 4888 {
3086d6cb 4889 struct v4l2_tuner *t = arg;
781aa1d1 4890
3086d6cb 4891 if (t->index > 0)
781aa1d1 4892 return -EINVAL;
3086d6cb
TM		 4893
4894 memset(t,0,sizeof(*t));
4895 strcpy(t->name, "Radio");
4896 t->type = V4L2_TUNER_RADIO;
4897
4898 /* Let clients fill in the remainder of this struct */
4899 call_i2c_clients(usbvision,VIDIOC_G_TUNER,t);
4900 PDEBUG(DBG_RIO, "VIDIOC_G_TUNER signal=%x, afc=%x",t->signal,t->afc);
781aa1d1
MCC		 4901 return 0;
4902 }
18d8a454 4903 case VIDIOC_S_TUNER:
781aa1d1
MCC		 4904 {
4905 struct v4l2_tuner *vt = arg;
4906
3086d6cb
TM		 4907 // Only no or one tuner for now
4908 if (!usbvision->have_tuner || vt->index)
781aa1d1 4909 return -EINVAL;
3086d6cb
TM		 4910 /* let clients handle this */
4911 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
4912
4913 PDEBUG(DBG_RIO, "VIDIOC_S_TUNER");
781aa1d1
MCC		 4914 return 0;
4915 }
18d8a454 4916 case VIDIOC_G_AUDIO:
781aa1d1 4917 {
3086d6cb
TM		 4918 struct v4l2_audio *a = arg;
4919
4920 memset(a,0,sizeof(*a));
4921 strcpy(a->name,"Radio");
4922 PDEBUG(DBG_RIO, "VIDIOC_G_AUDIO");
781aa1d1
MCC		 4923 return 0;
4924 }
18d8a454 4925 case VIDIOC_S_AUDIO:
3086d6cb
TM		 4926 case VIDIOC_S_INPUT:
4927 case VIDIOC_S_STD:
4928 return 0;
781aa1d1 4929
3086d6cb 4930 case VIDIOC_G_FREQUENCY:
781aa1d1 4931 {
3086d6cb 4932 struct v4l2_frequency *f = arg;
781aa1d1 4933
3086d6cb 4934 memset(f,0,sizeof(*f));
781aa1d1 4935
3086d6cb
TM		 4936 f->type = V4L2_TUNER_RADIO;
4937 f->frequency = usbvision->freq;
4938 call_i2c_clients(usbvision, cmd, f);
4939 PDEBUG(DBG_RIO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)f->frequency);
781aa1d1 4940
781aa1d1
MCC		 4941 return 0;
4942 }
3086d6cb 4943 case VIDIOC_S_FREQUENCY:
781aa1d1 4944 {
3086d6cb 4945 struct v4l2_frequency *f = arg;
781aa1d1 4946
3086d6cb
TM		 4947 if (f->tuner != 0)
4948 return -EINVAL;
4949 usbvision->freq = f->frequency;
4950 call_i2c_clients(usbvision, cmd, f);
4951 PDEBUG(DBG_RIO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)f->frequency);
781aa1d1 4952
781aa1d1
MCC		 4953 return 0;
4954 }
4955 default:
4956 {
4957 PDEBUG(DBG_RIO, "%s: Unknown command %x", __FUNCTION__, cmd);
4958 return -ENOIOCTLCMD;
4959 }
4960 }
4961 return 0;
4962}
4963
4964
4965static int usbvision_radio_ioctl(struct inode *inode, struct file *file,
4966 unsigned int cmd, unsigned long arg)
4967{
4968 return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl);
4969}
4970
4971
4972/*
4973 * Here comes the stuff for vbi on usbvision based devices
4974 *
4975 */
4976static int usbvision_vbi_open(struct inode *inode, struct file *file)
4977{
4978 struct video_device *dev = video_devdata(file);
4979 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
4980 unsigned long freq;
4981 int errCode = 0;
4982
4983 PDEBUG(DBG_RIO, "%s:", __FUNCTION__);
4984
4985 down(&usbvision->lock);
4986
4987 if (usbvision->user) {
4988 err("%s: Someone tried to open an already opened USBVision VBI!", __FUNCTION__);
4989 errCode = -EBUSY;
4990 }
4991 else {
4992 if(PowerOnAtOpen) {
4993 if (timer_pending(&usbvision->powerOffTimer)) {
4994 del_timer(&usbvision->powerOffTimer);
4995 }
4996 if (usbvision->power == 0) {
4997 usbvision_power_on(usbvision);
4998 usbvision_init_i2c(usbvision);
4999 }
5000 }
5001
5002 // If so far no errors then we shall start the vbi device
5003 //usbvision->vbi = 1;
5004 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
5005 freq = 1517; //SWR3 @ 94.8MHz
3086d6cb 5006 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq);
781aa1d1
MCC		 5007 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
5008 usbvision->user++;
5009 }
5010
5011 if (errCode) {
5012 if (PowerOnAtOpen) {
5013 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
5014 usbvision_power_off(usbvision);
5015 usbvision->initialized = 0;
5016 }
5017 }
5018 up(&usbvision->lock);
5019 return errCode;
5020}
5021
5022static int usbvision_vbi_close(struct inode *inode, struct file *file)
5023{
5024 struct video_device *dev = video_devdata(file);
5025 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
5026 int errCode = 0;
5027
5028 PDEBUG(DBG_RIO, "");
5029
5030 down(&usbvision->lock);
5031
5032 usbvision_audio_off(usbvision);
5033 usbvision->vbi=0;
5034 usbvision->user--;
5035
5036 if (PowerOnAtOpen) {
5037 mod_timer(&usbvision->powerOffTimer, jiffies + USBVISION_POWEROFF_TIME);
5038 usbvision->initialized = 0;
5039 }
5040
5041 up(&usbvision->lock);
5042
5043 if (usbvision->remove_pending) {
5044 info("%s: Final disconnect", __FUNCTION__);
5045 usbvision_release(usbvision);
5046 }
5047
5048
5049 PDEBUG(DBG_RIO, "success");
5050
5051 return errCode;
5052}
5053
5054static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
5055 unsigned int cmd, void *arg)
5056{
5057 struct video_device *dev = video_devdata(file);
5058 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
5059
5060 if (!USBVISION_IS_OPERATIONAL(usbvision))
5061 return -EIO;
5062
5063 switch (cmd) {
5064 case VIDIOC_QUERYCAP:
5065 {
5066 struct v4l2_capability *vc=arg;
5067 memset(vc, 0, sizeof(struct v4l2_capability));
5068 strcpy(vc->driver,"usbvision vbi");
5069 strcpy(vc->card,usbvision->vcap.card);
5070 strcpy(vc->bus_info,"usb");
5071 vc->version = USBVISION_DRIVER_VERSION; /* version */
5072 vc->capabilities = V4L2_CAP_VBI_CAPTURE; /* capabilities */
5073 PDEBUG(DBG_RIO, "%s: VIDIOC_QUERYCAP", __FUNCTION__);
5074 return 0;
5075 }
5076 case VIDIOCGTUNER:
5077 {
5078 struct video_tuner *vt = arg;
5079
5080 if((vt->tuner) || (usbvision->channel)) { /* Only tuner 0 */
5081 return -EINVAL;
5082 }
5083 strcpy(vt->name, "vbi");
5084 // japan: 76.0 MHz - 89.9 MHz
5085 // western europe: 87.5 MHz - 108.0 MHz
5086 // russia: 65.0 MHz - 108.0 MHz
5087 vt->rangelow=(int)(65*16);
5088 vt->rangehigh=(int)(108*16);
5089 vt->flags= 0;
5090 vt->mode = 0;
5091 call_i2c_clients(usbvision,cmd,vt);
5092 PDEBUG(DBG_RIO, "%s: VIDIOCGTUNER signal=%d", __FUNCTION__, vt->signal);
5093 return 0;
5094 }
5095 case VIDIOCSTUNER:
5096 {
5097 struct video_tuner *vt = arg;
5098
5099 // Only channel 0 has a tuner
5100 if((vt->tuner) || (usbvision->channel)) {
5101 return -EINVAL;
5102 }
5103 PDEBUG(DBG_RIO, "%s: VIDIOCSTUNER", __FUNCTION__);
5104 return 0;
5105 }
5106 case VIDIOCGAUDIO:
5107 {
5108 struct video_audio *va = arg;
5109 memset(va,0, sizeof(struct video_audio));
5110 call_i2c_clients(usbvision, cmd, va);
5111 va->flags|=VIDEO_AUDIO_MUTABLE;
5112 va->volume=1;
5113 va->step=1;
5114 strcpy(va->name, "vbi");
5115 PDEBUG(DBG_RIO, "%s: VIDIOCGAUDIO", __FUNCTION__);
5116 return 0;
5117 }
5118 case VIDIOCSAUDIO:
5119 {
5120 struct video_audio *va = arg;
5121 if(va->audio) {
5122 return -EINVAL;
5123 }
5124
5125 if(va->flags & VIDEO_AUDIO_MUTE) {
5126 if (usbvision_audio_mute(usbvision)) {
5127 return -EFAULT;
5128 }
5129 }
5130 else {
5131 if (usbvision_audio_on(usbvision)) {
5132 return -EFAULT;
5133 }
5134 }
5135 PDEBUG(DBG_RIO, "%s: VIDIOCSAUDIO flags=0x%x)", __FUNCTION__, va->flags);
5136 return 0;
5137 }
5138 case VIDIOCGFREQ:
5139 {
5140 unsigned long *freq = arg;
5141
5142 *freq = usbvision->freq;
5143 PDEBUG(DBG_RIO, "%s: VIDIOCGFREQ freq = %ld00 kHz", __FUNCTION__, (*freq * 10)>>4);
5144 return 0;
5145 }
5146 case VIDIOCSFREQ:
5147 {
5148 unsigned long *freq = arg;
5149
5150 usbvision->freq = *freq;
5151 call_i2c_clients(usbvision, cmd, freq);
5152 PDEBUG(DBG_RIO, "%s: VIDIOCSFREQ freq = %ld00 kHz", __FUNCTION__, (*freq * 10)>>4);
5153 return 0;
5154 }
5155 default:
5156 {
5157 PDEBUG(DBG_RIO, "%s: Unknown command %d", __FUNCTION__, cmd);
5158 return -ENOIOCTLCMD;
5159 }
5160 }
5161 return 0;
5162}
5163
5164static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
5165 unsigned int cmd, unsigned long arg)
5166{
5167 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
5168}
5169
5170
5171
5172static void usbvision_configure_video(struct usb_usbvision *usbvision)
5173{
f2242ee5 5174 int model,i;
781aa1d1
MCC		 5175
5176 if (usbvision == NULL)
5177 return;
781aa1d1 5178
18d8a454 5179 model = usbvision->DevModel;
781aa1d1
MCC		 5180 usbvision->depth = 24;
5181 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
5182
5183 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2 >= 0) {
5184 usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2 & 0xff;
5185 } else {
5186 usbvision->Vin_Reg2_Preset = 0;
5187 }
5188
5189 memset(&usbvision->vcap, 0, sizeof(usbvision->vcap));
5190 strcpy(usbvision->vcap.driver, "USBVision");
f2242ee5
TM		 5191 strlcpy(usbvision->vcap.bus_info, usbvision->dev->dev.bus_id,
5192 sizeof(usbvision->vcap.bus_info));
5193 usbvision->vcap.capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
781aa1d1
MCC		 5194 (dga ? (V4L2_FBUF_CAP_LIST_CLIPPING | V4L2_CAP_VIDEO_OVERLAY) : 0) |
5195 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
5196 usbvision->vcap.version = USBVISION_DRIVER_VERSION; /* version */
5197
f2242ee5
TM		 5198 for (i = 0; i < TVNORMS; i++)
5199 if (usbvision_device_data[model].VideoNorm == tvnorms[i].mode)
5200 break;
5201 if (i == TVNORMS)
5202 i = 0;
957883d0 5203 usbvision->tvnorm = &tvnorms[i]; /* set default norm */
f2242ee5
TM		 5204
5205 usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
5206 usbvision->ctl_input = 0;
781aa1d1
MCC		 5207
5208 /* This should be here to make i2c clients to be able to register */
5209 usbvision_audio_off(usbvision); //first switch off audio
5210 if (!PowerOnAtOpen) {
5211 usbvision_power_on(usbvision); //and then power up the noisy tuner
5212 usbvision_init_i2c(usbvision);
5213 }
5214}
5215
5216//
5217// Video registration stuff
5218//
5219
5220// Video template
5221static struct file_operations usbvision_fops = {
5222 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
5223 .owner = THIS_MODULE,
5224 #endif
5225 .open = usbvision_v4l2_open,
5226 .release = usbvision_v4l2_close,
5227 .read = usbvision_v4l2_read,
5228 .mmap = usbvision_v4l2_mmap,
5229 .ioctl = usbvision_v4l2_ioctl,
5230 .llseek = no_llseek,
5231};
5232static struct video_device usbvision_video_template = {
5233 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
5234 .owner = THIS_MODULE,
5235 #endif
5236 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE,
5237 .hardware = VID_HARDWARE_USBVISION,
5238 .fops = &usbvision_fops,
5239 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5240 .name = "usbvision-video",
5241 .release = video_device_release,
5242 #endif
5243 .minor = -1,
5244};
5245
5246
5247// Radio template
5248static struct file_operations usbvision_radio_fops = {
5249 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
5250 .owner = THIS_MODULE,
5251 #endif
5252 .open = usbvision_radio_open,
5253 .release = usbvision_radio_close,
5254 .ioctl = usbvision_radio_ioctl,
5255 .llseek = no_llseek,
5256};
5257
5258static struct video_device usbvision_radio_template=
5259{
5260 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
5261 .owner = THIS_MODULE,
5262 #endif
5263 .type = VID_TYPE_TUNER,
5264 .hardware = VID_HARDWARE_USBVISION,
5265 .fops = &usbvision_radio_fops,
5266 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5267 .release = video_device_release,
5268 .name = "usbvision-radio",
5269 #endif
5270 .minor = -1,
5271};
5272
5273
5274// vbi template
5275static struct file_operations usbvision_vbi_fops = {
5276 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
5277 .owner = THIS_MODULE,
5278 #endif
5279 .open = usbvision_vbi_open,
5280 .release = usbvision_vbi_close,
5281 .ioctl = usbvision_vbi_ioctl,
5282 .llseek = no_llseek,
5283};
5284
5285static struct video_device usbvision_vbi_template=
5286{
5287 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,31)
5288 .owner = THIS_MODULE,
5289 #endif
5290 .type = VID_TYPE_TUNER,
5291 .hardware = VID_HARDWARE_USBVISION,
5292 .fops = &usbvision_vbi_fops,
5293 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5294 .release = video_device_release,
5295 .name = "usbvision-vbi",
5296 #endif
5297 .minor = -1,
5298};
5299
5300
5301static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
5302 struct video_device *vdev_template,
5303 char *name)
5304{
5305 struct usb_device *usb_dev = usbvision->dev;
5306 struct video_device *vdev;
5307
5308 if (usb_dev == NULL) {
5309 err("%s: usbvision->dev is not set", __FUNCTION__);
5310 return NULL;
5311 }
5312
5313 vdev = video_device_alloc();
5314 if (NULL == vdev) {
5315 return NULL;
5316 }
5317 *vdev = *vdev_template;
5318// vdev->minor = -1;
5319 vdev->dev = &usb_dev->dev;
5320 snprintf(vdev->name, sizeof(vdev->name), "%s", name);
5321 video_set_drvdata(vdev, usbvision);
5322 return vdev;
5323}
5324
5325// unregister video4linux devices
5326static void usbvision_unregister_video(struct usb_usbvision *usbvision)
5327{
5328 // vbi Device:
5329 if (usbvision->vbi) {
5330 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f);
5331 if (usbvision->vbi->minor != -1) {
5332 video_unregister_device(usbvision->vbi);
5333 }
5334 else {
5335 video_device_release(usbvision->vbi);
5336 }
5337 usbvision->vbi = NULL;
5338 }
18d8a454 5339
781aa1d1
MCC		 5340 // Radio Device:
5341 if (usbvision->rdev) {
5342 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f);
5343 if (usbvision->rdev->minor != -1) {
5344 video_unregister_device(usbvision->rdev);
5345 }
5346 else {
5347 video_device_release(usbvision->rdev);
5348 }
5349 usbvision->rdev = NULL;
5350 }
5351
5352 // Video Device:
5353 if (usbvision->vdev) {
5354 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f);
5355 if (usbvision->vdev->minor != -1) {
5356 video_unregister_device(usbvision->vdev);
5357 }
5358 else {
5359 video_device_release(usbvision->vdev);
5360 }
5361 usbvision->vdev = NULL;
5362 }
5363}
5364
5365// register video4linux devices
5366static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
5367{
5368 // Video Device:
5369 usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video");
5370 if (usbvision->vdev == NULL) {
5371 goto err_exit;
5372 }
5373 if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) {
5374 goto err_exit;
5375 }
5376 info("USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]", usbvision->nr,usbvision->vdev->minor & 0x1f);
5377
5378 // Radio Device:
5379 if (usbvision_device_data[usbvision->DevModel].Radio) {
5380 // usbvision has radio
5381 usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio");
5382 if (usbvision->rdev == NULL) {
5383 goto err_exit;
5384 }
5385 if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) {
5386 goto err_exit;
5387 }
5388 info("USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]", usbvision->nr, usbvision->rdev->minor & 0x1f);
5389 }
18d8a454 5390 // vbi Device:
781aa1d1
MCC		 5391 if (usbvision_device_data[usbvision->DevModel].vbi) {
5392 usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI");
5393 if (usbvision->vdev == NULL) {
5394 goto err_exit;
5395 }
5396 if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) {
5397 goto err_exit;
5398 }
5399 info("USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)", usbvision->nr,usbvision->vbi->minor & 0x1f);
5400 }
5401 // all done
5402 return 0;
5403
5404 err_exit:
5405 err("USBVision[%d]: video_register_device() failed", usbvision->nr);
5406 usbvision_unregister_video(usbvision);
5407 return -1;
5408}
5409
5410/*
5411 * usbvision_alloc()
5412 *
5413 * This code allocates the struct usb_usbvision. It is filled with default values.
5414 *
5415 * Returns NULL on error, a pointer to usb_usbvision else.
5416 *
5417 */
5418static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
5419{
5420 struct usb_usbvision *usbvision;
781aa1d1
MCC		 5421
5422 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) {
5423 goto err_exit;
5424 }
5425
5426 usbvision->dev = dev;
5427
781aa1d1
MCC		 5428 init_MUTEX(&usbvision->lock); /* to 1 == available */
5429
5430 // prepare control urb for control messages during interrupts
5431 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
5432 if (usbvision->ctrlUrb == NULL) {
5433 goto err_exit;
5434 }
5435 init_waitqueue_head(&usbvision->ctrlUrb_wq);
f2242ee5 5436 init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */
781aa1d1
MCC		 5437
5438 init_timer(&usbvision->powerOffTimer);
5439 usbvision->powerOffTimer.data = (long) usbvision;
5440 usbvision->powerOffTimer.function = usbvision_powerOffTimer;
5441
5442 return usbvision;
5443
5444err_exit:
5445 if (usbvision && usbvision->ctrlUrb) {
5446 usb_free_urb(usbvision->ctrlUrb);
5447 }
5448 if (usbvision) {
5449 kfree(usbvision);
5450 }
5451 return NULL;
5452}
5453
5454/*
5455 * usbvision_release()
5456 *
5457 * This code does final release of struct usb_usbvision. This happens
5458 * after the device is disconnected -and- all clients closed their files.
5459 *
5460 */
5461static void usbvision_release(struct usb_usbvision *usbvision)
5462{
5463 PDEBUG(DBG_PROBE, "");
5464
5465 down(&usbvision->lock);
5466
5467 if (timer_pending(&usbvision->powerOffTimer)) {
5468 del_timer(&usbvision->powerOffTimer);
5469 }
5470
5471 usbvision->usbvision_used = 0;
5472 usbvision->initialized = 0;
5473
5474 up(&usbvision->lock);
5475
5476 usbvision_remove_sysfs(usbvision->vdev);
5477 usbvision_unregister_video(usbvision);
5478 if(dga) {
5479 if (usbvision->overlay_base) {
5480 iounmap(usbvision->overlay_base);
5481 }
5482 }
5483
5484 if (usbvision->ctrlUrb) {
5485 usb_free_urb(usbvision->ctrlUrb);
5486 }
5487
5488 kfree(usbvision);
5489
5490 PDEBUG(DBG_PROBE, "success");
5491}
5492
5493
5494/*
5495 * usbvision_probe()
5496 *
5497 * This procedure queries device descriptor and accepts the interface
5498 * if it looks like USBVISION video device
5499 *
5500 */
5501static int __devinit usbvision_probe(struct usb_interface *intf, const struct usb_device_id *devid)
5502{
5503 struct usb_device *dev = interface_to_usbdev(intf);
5504 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
5505 const struct usb_host_interface *interface;
5506 struct usb_usbvision *usbvision = NULL;
5507 const struct usb_endpoint_descriptor *endpoint;
5508 int model;
5509
5510 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
5511 dev->descriptor.idVendor, dev->descriptor.idProduct, ifnum);
781aa1d1
MCC		 5512 /* Is it an USBVISION video dev? */
5513 model = 0;
5514 for(model = 0; usbvision_device_data[model].idVendor; model++) {
18d8a454 5515 if (le16_to_cpu(dev->descriptor.idVendor) != usbvision_device_data[model].idVendor) {
781aa1d1
MCC		 5516 continue;
5517 }
18d8a454 5518 if (le16_to_cpu(dev->descriptor.idProduct) != usbvision_device_data[model].idProduct) {
781aa1d1
MCC		 5519 continue;
5520 }
5521
5522 info("%s: %s found", __FUNCTION__, usbvision_device_data[model].ModelString);
5523 break;
5524 }
5525
5526 if (usbvision_device_data[model].idVendor == 0) {
5527 return -ENODEV; //no matching device
5528 }
5529 if (usbvision_device_data[model].Interface >= 0) {
5530 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
5531 }
5532 else {
5533 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
5534 }
5535 endpoint = &interface->endpoint[1].desc;
5536 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) {
5537 err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum);
5538 err("%s: Endpoint attribures %d", __FUNCTION__, endpoint->bmAttributes);
5539 return -ENODEV;
5540 }
5541 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
5542 err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum);
5543 return -ENODEV;
5544 }
5545
5546 usb_get_dev(dev);
18d8a454 5547
781aa1d1
MCC		 5548 if ((usbvision = usbvision_alloc(dev)) == NULL) {
5549 err("%s: couldn't allocate USBVision struct", __FUNCTION__);
5550 return -ENOMEM;
5551 }
5552 if (dev->descriptor.bNumConfigurations > 1) {
5553 usbvision->bridgeType = BRIDGE_NT1004;
5554 }
5555 else if (usbvision_device_data[model].ModelString == "Dazzle Fusion Model DVC-90 Rev 1 (SECAM)") {
5556 usbvision->bridgeType = BRIDGE_NT1005;
18d8a454 5557 }
781aa1d1
MCC		 5558 else {
5559 usbvision->bridgeType = BRIDGE_NT1003;
5560 }
5561 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
5562
5563 down(&usbvision->lock);
5564
5565 usbvision->nr = usbvision_nr++;
5566
5567 usbvision->have_tuner = usbvision_device_data[model].Tuner;
5568 if (usbvision->have_tuner) {
5569 usbvision->tuner_type = usbvision_device_data[model].TunerType;
5570 }
5571
957883d0
TM		 5572 usbvision->tuner_addr = ADDR_UNSET;
5573
781aa1d1
MCC		 5574 usbvision->DevModel = model;
5575 usbvision->remove_pending = 0;
5576 usbvision->last_error = 0;
5577 usbvision->iface = ifnum;
5578 usbvision->ifaceAltInactive = 0;
5579 usbvision->ifaceAltActive = 1;
5580 usbvision->video_endp = endpoint->bEndpointAddress;
5581 usbvision->isocPacketSize = 0;
5582 usbvision->usb_bandwidth = 0;
5583 usbvision->user = 0;
5f7fb877 5584 usbvision->streaming = Stream_Off;
781aa1d1
MCC		 5585 usbvision_register_video(usbvision);
5586 usbvision_configure_video(usbvision);
5587 up(&usbvision->lock);
5588
5589
5590 usb_set_intfdata (intf, usbvision);
18d8a454 5591 usbvision_create_sysfs(usbvision->vdev);
781aa1d1
MCC		 5592
5593 PDEBUG(DBG_PROBE, "success");
5594 return 0;
5595}
5596
5597
5598/*
5599 * usbvision_disconnect()
5600 *
5601 * This procedure stops all driver activity, deallocates interface-private
5602 * structure (pointed by 'ptr') and after that driver should be removable
5603 * with no ill consequences.
5604 *
5605 */
5606static void __devexit usbvision_disconnect(struct usb_interface *intf)
5607{
5608 struct usb_usbvision *usbvision = usb_get_intfdata(intf);
5609
5610 PDEBUG(DBG_PROBE, "");
5611
5612 if (usbvision == NULL) {
5613 err("%s: usb_get_intfdata() failed", __FUNCTION__);
5614 return;
5615 }
5616 usb_set_intfdata (intf, NULL);
5617
5618 down(&usbvision->lock);
5619
5620 // At this time we ask to cancel outstanding URBs
5621 usbvision_stop_isoc(usbvision);
5622
5623 if (usbvision->power) {
5624 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
5625 usbvision_power_off(usbvision);
5626 }
5627 usbvision->remove_pending = 1; // Now all ISO data will be ignored
5628
5629 usb_put_dev(usbvision->dev);
5630 usbvision->dev = NULL; // USB device is no more
5631
5632 up(&usbvision->lock);
5633
5634 if (usbvision->user) {
5635 info("%s: In use, disconnect pending", __FUNCTION__);
5f7fb877
T		 5636 wake_up_interruptible(&usbvision->wait_frame);
5637 wake_up_interruptible(&usbvision->wait_stream);
781aa1d1
MCC		 5638 }
5639 else {
5640 usbvision_release(usbvision);
5641 }
5642
5643 PDEBUG(DBG_PROBE, "success");
5644
5645}
5646
781aa1d1
MCC		 5647static struct usb_driver usbvision_driver = {
5648 .name = "usbvision",
5649 .id_table = usbvision_table,
5650 .probe = usbvision_probe,
5651 .disconnect = usbvision_disconnect
5652};
5653
5654/*
5655 * customdevice_process()
5656 *
5657 * This procedure preprocesses CustomDevice parameter if any
5658 *
5659 */
5660void customdevice_process(void)
5661{
5662 usbvision_device_data[0]=usbvision_device_data[1];
5663 usbvision_table[0]=usbvision_table[1];
5664
5665 if(CustomDevice)
5666 {
5667 char *parse=CustomDevice;
18d8a454 5668
781aa1d1
MCC		 5669 PDEBUG(DBG_PROBE, "CustomDevide=%s", CustomDevice);
5670
5671 /*format is CustomDevice="0x0573 0x4D31 0 7113 3 PAL 1 1 1 5 -1 -1 -1 -1 -1"
5672 usbvision_device_data[0].idVendor;
5673 usbvision_device_data[0].idProduct;
5674 usbvision_device_data[0].Interface;
5675 usbvision_device_data[0].Codec;
5676 usbvision_device_data[0].VideoChannels;
5677 usbvision_device_data[0].VideoNorm;
5678 usbvision_device_data[0].AudioChannels;
5679 usbvision_device_data[0].Radio;
5680 usbvision_device_data[0].Tuner;
5681 usbvision_device_data[0].TunerType;
5682 usbvision_device_data[0].Vin_Reg1;
5683 usbvision_device_data[0].Vin_Reg2;
5684 usbvision_device_data[0].X_Offset;
5685 usbvision_device_data[0].Y_Offset;
5686 usbvision_device_data[0].Dvi_yuv;
18d8a454 5687 usbvision_device_data[0].ModelString;
781aa1d1 5688 */
18d8a454 5689
781aa1d1
MCC		 5690 rmspace(parse);
5691 usbvision_device_data[0].ModelString="USBVISION Custom Device";
5692
5693 parse+=2;
5694 sscanf(parse,"%x",&usbvision_device_data[0].idVendor);
5695 goto2next(parse);
5696 PDEBUG(DBG_PROBE, "idVendor=0x%.4X", usbvision_device_data[0].idVendor);
5697 parse+=2;
5698 sscanf(parse,"%x",&usbvision_device_data[0].idProduct);
5699 goto2next(parse);
5700 PDEBUG(DBG_PROBE, "idProduct=0x%.4X", usbvision_device_data[0].idProduct);
5701 sscanf(parse,"%d",&usbvision_device_data[0].Interface);
5702 goto2next(parse);
5703 PDEBUG(DBG_PROBE, "Interface=%d", usbvision_device_data[0].Interface);
5704 sscanf(parse,"%d",&usbvision_device_data[0].Codec);
5705 goto2next(parse);
5706 PDEBUG(DBG_PROBE, "Codec=%d", usbvision_device_data[0].Codec);
5707 sscanf(parse,"%d",&usbvision_device_data[0].VideoChannels);
5708 goto2next(parse);
5709 PDEBUG(DBG_PROBE, "VideoChannels=%d", usbvision_device_data[0].VideoChannels);
5710
5711 switch(*parse)
5712 {
5713 case 'P':
5714 PDEBUG(DBG_PROBE, "VideoNorm=PAL");
5715 usbvision_device_data[0].VideoNorm=VIDEO_MODE_PAL;
5716 break;
5717
5718 case 'S':
5719 PDEBUG(DBG_PROBE, "VideoNorm=SECAM");
5720 usbvision_device_data[0].VideoNorm=VIDEO_MODE_SECAM;
5721 break;
5722
5723 case 'N':
5724 PDEBUG(DBG_PROBE, "VideoNorm=NTSC");
5725 usbvision_device_data[0].VideoNorm=VIDEO_MODE_NTSC;
5726 break;
5727
5728 default:
5729 PDEBUG(DBG_PROBE, "VideoNorm=PAL (by default)");
5730 usbvision_device_data[0].VideoNorm=VIDEO_MODE_PAL;
5731 break;
5732 }
5733 goto2next(parse);
5734
5735 sscanf(parse,"%d",&usbvision_device_data[0].AudioChannels);
5736 goto2next(parse);
5737 PDEBUG(DBG_PROBE, "AudioChannels=%d", usbvision_device_data[0].AudioChannels);
5738 sscanf(parse,"%d",&usbvision_device_data[0].Radio);
5739 goto2next(parse);
5740 PDEBUG(DBG_PROBE, "Radio=%d", usbvision_device_data[0].Radio);
5741 sscanf(parse,"%d",&usbvision_device_data[0].Tuner);
5742 goto2next(parse);
5743 PDEBUG(DBG_PROBE, "Tuner=%d", usbvision_device_data[0].Tuner);
5744 sscanf(parse,"%d",&usbvision_device_data[0].TunerType);
5745 goto2next(parse);
5746 PDEBUG(DBG_PROBE, "TunerType=%d", usbvision_device_data[0].TunerType);
5747 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg1);
5748 goto2next(parse);
5749 PDEBUG(DBG_PROBE, "Vin_Reg1=%d", usbvision_device_data[0].Vin_Reg1);
5750 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg2);
5751 goto2next(parse);
5752 PDEBUG(DBG_PROBE, "Vin_Reg2=%d", usbvision_device_data[0].Vin_Reg2);
5753 sscanf(parse,"%d",&usbvision_device_data[0].X_Offset);
5754 goto2next(parse);
5755 PDEBUG(DBG_PROBE, "X_Offset=%d", usbvision_device_data[0].X_Offset);
5756 sscanf(parse,"%d",&usbvision_device_data[0].Y_Offset);
5757 goto2next(parse);
5758 PDEBUG(DBG_PROBE, "Y_Offset=%d", usbvision_device_data[0].Y_Offset);
5759 sscanf(parse,"%d",&usbvision_device_data[0].Dvi_yuv);
5760 PDEBUG(DBG_PROBE, "Dvi_yuv=%d", usbvision_device_data[0].Dvi_yuv);
5761
5762 //add to usbvision_table also
5763 usbvision_table[0].match_flags=USB_DEVICE_ID_MATCH_DEVICE;
5764 usbvision_table[0].idVendor=usbvision_device_data[0].idVendor;
5765 usbvision_table[0].idProduct=usbvision_device_data[0].idProduct;
5766
5767 }
5768}
5769
5770
5771
5772/*
5773 * usbvision_init()
5774 *
5775 * This code is run to initialize the driver.
5776 *
5777 */
5778static int __init usbvision_init(void)
5779{
5780 int errCode;
5781
5782 PDEBUG(DBG_PROBE, "");
5783
5784 PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled");
5785 PDEBUG(DBG_IO, "IO debugging is enabled");
5786 PDEBUG(DBG_RIO, "RIO debugging is enabled");
5787 PDEBUG(DBG_HEADER, "HEADER debugging is enabled");
5788 PDEBUG(DBG_PROBE, "PROBE debugging is enabled");
5789 PDEBUG(DBG_IRQ, "IRQ debugging is enabled");
5790 PDEBUG(DBG_ISOC, "ISOC debugging is enabled");
5791 PDEBUG(DBG_PARSE, "PARSE debugging is enabled");
5792 PDEBUG(DBG_SCRATCH, "SCRATCH debugging is enabled");
5793 PDEBUG(DBG_FUNC, "FUNC debugging is enabled");
5794 PDEBUG(DBG_I2C, "I2C debugging is enabled");
5795
18d8a454
DG		 5796 /* disable planar mode support unless compression enabled */
5797 if (isocMode != ISOC_MODE_COMPRESS ) {
781aa1d1
MCC		 5798 // FIXME : not the right way to set supported flag
5799 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
5800 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
18d8a454 5801 }
781aa1d1
MCC		 5802
5803 customdevice_process();
5804
5805 errCode = usb_register(&usbvision_driver);
5806
5807 if (errCode == 0) {
5808 info(DRIVER_DESC " : " DRIVER_VERSION);
5809 PDEBUG(DBG_PROBE, "success");
5810 }
5811 return errCode;
5812}
5813
5814static void __exit usbvision_exit(void)
5815{
5816 PDEBUG(DBG_PROBE, "");
5817
5818 usb_deregister(&usbvision_driver);
5819 PDEBUG(DBG_PROBE, "success");
5820}
5821
5822module_init(usbvision_init);
5823module_exit(usbvision_exit);
5824
5825/*
5826 * Overrides for Emacs so that we follow Linus's tabbing style.
5827 * ---------------------------------------------------------------------------
5828 * Local variables:
5829 * c-basic-offset: 8
5830 * End:
5831 */
Linux 6.x block layer and io_uring tree(s)