1 This is a driver for the WIS GO7007SB multi-format video encoder.
3 Pete Eberlein <pete@sensoray.com>
5 The driver was originally released under the GPL and is currently hosted at:
6 http://nikosapi.org/wiki/index.php/WIS_Go7007_Linux_driver
7 The go7007 firmware can be acquired from the package on the site above.
9 I've modified the driver to support the following Video4Linux2 MPEG
10 controls, with acceptable values:
12 V4L2_CID_MPEG_STREAM_TYPE V4L2_MPEG_STREAM_TYPE_MPEG2_DVD
13 V4L2_MPEG_STREAM_TYPE_MPEG_ELEM
14 V4L2_CID_MPEG_VIDEO_ENCODING V4L2_MPEG_VIDEO_ENCODING_MPEG_1
15 V4L2_MPEG_VIDEO_ENCODING_MPEG_2
16 V4L2_MPEG_VIDEO_ENCODING_MPEG_4
17 V4L2_CID_MPEG_VIDEO_ASPECT V4L2_MPEG_VIDEO_ASPECT_1x1
18 V4L2_MPEG_VIDEO_ASPECT_4x3
19 V4L2_MPEG_VIDEO_ASPECT_16x9
20 V4L2_CID_MPEG_VIDEO_GOP_SIZE integer
21 V4L2_CID_MPEG_VIDEO_BITRATE 64000 .. 10000000
23 These should be used instead of the non-standard GO7007 ioctls described
27 The README files from the original package appears below:
29 ---------------------------------------------------------------------------
30 WIS GO7007SB Public Linux Driver
31 ---------------------------------------------------------------------------
34 *** Please see the file RELEASE-NOTES for important last-minute updates ***
37 0. OVERVIEW AND LICENSING/DISCLAIMER
40 This driver kit contains Linux drivers for the WIS GO7007SB multi-format
41 video encoder. Only kernel version 2.6.x is supported. The video stream
42 is available through the Video4Linux2 API and the audio stream is available
43 through the ALSA API (or the OSS emulation layer of the ALSA system).
45 The files in kernel/ and hotplug/ are licensed under the GNU General Public
46 License Version 2 from the Free Software Foundation. A copy of the license
47 is included in the file COPYING.
49 The example applications in apps/ and C header files in include/ are
50 licensed under a permissive license included in the source files which
51 allows copying, modification and redistribution for any purpose without
54 The firmware files included in the firmware/ directory may be freely
55 redistributed only in conjunction with this document; but modification,
56 tampering and reverse engineering are prohibited.
58 MICRONAS USA, INC., MAKES NO WARRANTIES TO ANY PERSON OR ENTITY WITH
59 RESPECT TO THE SOFTWARE OR ANY DERIVATIVES THEREOF OR ANY SERVICES OR
60 LICENSES AND DISCLAIMS ALL IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION
61 WARRANTIES OF MERCHANTABILITY, SUPPORT, AND FITNESS FOR A PARTICULAR
62 PURPOSE AND NON-INFRINGEMENT.
65 1. SYSTEM REQUIREMENTS
68 This driver requires Linux kernel 2.6. Kernel 2.4 is not supported. Using
69 kernel 2.6.10 or later is recommended, as earlier kernels are known to have
70 unstable USB 2.0 support.
72 A fully built kernel source tree must be available. Typically this will be
73 linked from "/lib/modules/<KERNEL VERSION>/build" for convenience. If this
74 link does not exist, an extra parameter will need to be passed to the
77 All vendor-built kernels should already be configured properly. However,
78 for custom-built kernels, the following options need to be enabled in the
79 kernel as built-in or modules:
81 CONFIG_HOTPLUG - Support for hot-pluggable devices
82 CONFIG_MODULES - Enable loadable module support
83 CONFIG_KMOD - Automatic kernel module loading
84 CONFIG_FW_LOADER - Hotplug firmware loading support
85 CONFIG_I2C - I2C support
86 CONFIG_VIDEO_DEV - Video For Linux
87 CONFIG_SOUND - Sound card support
88 CONFIG_SND - Advanced Linux Sound Architecture
89 CONFIG_USB - Support for Host-side USB
90 CONFIG_USB_DEVICEFS - USB device filesystem
91 CONFIG_USB_EHCI_HCD - EHCI HCD (USB 2.0) support
93 Additionally, to use the example application, the following options need to
94 be enabled in the ALSA section:
96 CONFIG_SND_MIXER_OSS - OSS Mixer API
97 CONFIG_SND_PCM_OSS - OSS PCM (digital audio) API
99 The hotplug scripts, along with the fxload utility, must also be installed.
100 These scripts can be obtained from <http://linux-hotplug.sourceforge.net/>.
101 Hotplugging is used for loading firmware into the Cypruss EZ-USB chip using
102 fxload and for loading firmware into the driver using the firmware agent.
105 2. COMPILING AND INSTALLING THE DRIVER
108 Most users should be able to compile the driver by simply running:
112 in the top-level directory of the driver kit. First the kernel modules
113 will be built, followed by the example applications.
115 If the build system is unable to locate the kernel source tree for the
116 currently-running kernel, or if the module should be built for a kernel
117 other than the currently-running kernel, an additional parameter will need
118 to be passed to make to specify the appropriate kernel source directory:
120 $ make KERNELSRC=/usr/src/linux-2.6.10-custom3
122 Once the compile completes, the driver and firmware files should be
123 installed by running:
127 The kernel modules will be placed in "/lib/modules/<KERNEL VERSION>/extra"
128 and the firmware files will be placed in the appropriate hotplug firmware
129 directory, usually /lib/firmware. In addition, USB maps and scripts will
130 be placed in /etc/hotplug/usb to enable fxload to initialize the EZ-USB
131 control chip when the device is connected.
134 3. PAL/SECAM TUNER CONFIGURATION (TV402U-EU only)
137 The PAL model of the Plextor ConvertX TV402U may require additional
138 configuration to correctly select the appropriate TV frequency band and
141 Users with a device other than the Plextor ConvertX TV402U-EU should skip
144 The wide variety of PAL TV systems used in Europe requires that additional
145 information about the local TV standards be passed to the driver in order
146 to properly tune TV channels. The two necessary parameters are (a) the PAL
147 TV band, and (b) the audio subchannel format in use.
149 In many cases, the appropriate TV band selection is passed to the driver
150 from applications. However, in some cases, the application only specifies
151 that the driver should use PAL but not the specific information about the
152 appropriate TV band. To work around this issue, the correct TV band may be
153 specified in the "force_band" parameter to the wis-sony-tuner module:
162 If the "force_band" parameter is specified, the driver will ignore any TV
163 band specified by applications and will always use the band provided in the
166 The other parameter that can be specified is the audio subchannel format.
167 There are several stereo audio carrier systems in use, including NICAM and
168 three varieties of A2. To receive audio broadcast on one of these stereo
169 carriers, the "force_mpx_mode" parameter must be specified to the
170 wis-sony-tuner module.
172 TV band Audio subcarrier force_mpx_mode
173 ------- ---------------- --------------
174 PAL B/G Mono (default) 1
177 PAL I Mono (default) 4
179 PAL D/K Mono (default) 6
184 SECAM L Mono (default) 11
187 If the "force_mpx_mode" parameter is not specified, the correct mono-only
188 mode will be chosen based on the TV band. However, the tuner will not
189 receive stereo audio or bilingual broadcasts correctly.
191 To pass the "force_band" or "force_mpx_mode" parameters to the
192 wis-sony-tuner module, the following line must be added to the modprobe
193 configuration file, which varies from one Linux distribution to another.
195 options wis-sony-tuner force_band=B force_mpx_mode=2
197 The above example would force the tuner to the PAL B/G TV band and receive
198 stereo audio broadcasts on the A2 carrier.
200 To verify that the configuration has been placed in the correct location,
203 $ modprobe -c | grep wis-sony-tuner
205 If the configuration line appears, then modprobe will pass the parameters
206 correctly the next time the wis-sony-tuner module is loaded into the
210 4. TESTING THE DRIVER
213 Because few Linux applications are able to correctly capture from
214 Video4Linux2 devices with only compressed formats supported, the new driver
215 should be tested with the "gorecord" application in the apps/ directory.
217 First connect a video source to the device, such as a DVD player or VCR.
218 This will be captured to a file for testing the driver. If an input source
219 is unavailable, a test file can still be captured, but the video will be
220 black and the audio will be silent.
222 This application will auto-detect the V4L2 and ALSA/OSS device names of the
223 hardware and will record video and audio to an AVI file for a specified
224 number of seconds. For example:
226 $ apps/gorecord -duration 60 capture.avi
228 If this application does not successfully record an AVI file, the error
229 messages produced by gorecord and recorded in the system log (usually in
230 /var/log/messages) should provide information to help resolve the problem.
232 Supplying no parameters to gorecord will cause it to probe the available
233 devices and exit. Use the -help flag for usage information.
239 The V4L2 device implemented by the driver provides a standard compressed
240 format API, within the following criteria:
242 * Applications that only support the original Video4Linux1 API will not
243 be able to communicate with this driver at all.
245 * No raw video modes are supported, so applications like xawtv that
246 expect only uncompressed video will not function.
248 * Supported compression formats are: Motion-JPEG, MPEG1, MPEG2 and MPEG4.
250 * MPEG video formats are delivered as Video Elementary Streams only.
251 Program Stream (PS), Transport Stream (TS) and Packetized Elementary
252 Stream (PES) formats are not supported.
254 * Video parameters such as format and input port may not be changed while
255 the encoder is active.
257 * The audio capture device only functions when the video encoder is
258 actively capturing video. Attempts to read from the audio device when
259 the encoder is inactive will result in an I/O error.
261 * The native format of the audio device is 48Khz 2-channel 16-bit
262 little-endian PCM, delivered through the ALSA system. No audio
263 compression is implemented in the hardware. ALSA may convert to other
264 uncompressed formats on the fly.
266 The include/ directory contains a C header file describing non-standard
267 features of the GO7007SB encoder, which are described below:
270 GO7007IOC_S_COMP_PARAMS, GO7007IOC_G_COMP_PARAMS
272 These ioctls are used to negotiate general compression parameters.
274 To query the current parameters, call the GO7007IOC_G_COMP_PARAMS ioctl
275 with a pointer to a struct go7007_comp_params. If the driver is not
276 set to MPEG format, the EINVAL error code will be returned.
278 To change the current parameters, initialize all fields of a struct
279 go7007_comp_params and call the GO7007_IOC_S_COMP_PARAMS ioctl with a
280 pointer to this structure. The driver will return the current
281 parameters with any necessary changes to conform to the limitations of
282 the hardware or current compression mode. Any or all fields can be set
283 to zero to request a reasonable default value. If the driver is not
284 set to MPEG format, the EINVAL error code will be returned. When I/O
285 is in progress, the EBUSY error code will be returned.
287 Fields in struct go7007_comp_params:
289 __u32 The maximum number of frames in each
290 gop_size Group Of Pictures; i.e. the maximum
291 number of frames minus one between
294 __u32 The maximum number of sequential
295 max_b_frames bidirectionally-predicted frames.
296 (B-frames are not yet supported.)
298 enum go7007_aspect_ratio The aspect ratio to be encoded in the
299 aspect_ratio meta-data of the compressed format.
302 GO7007_ASPECT_RATIO_1_1
303 GO7007_ASPECT_RATIO_4_3_NTSC
304 GO7007_ASPECT_RATIO_4_3_PAL
305 GO7007_ASPECT_RATIO_16_9_NTSC
306 GO7007_ASPECT_RATIO_16_9_PAL
308 __u32 Bit-wise OR of control flags (below)
311 Flags in struct go7007_comp_params:
313 GO7007_COMP_CLOSED_GOP Only produce self-contained GOPs, used
314 to produce streams appropriate for
317 GO7007_COMP_OMIT_SEQ_HEADER Omit the stream sequence header.
320 GO7007IOC_S_MPEG_PARAMS, GO7007IOC_G_MPEG_PARAMS
322 These ioctls are used to negotiate MPEG-specific stream parameters when
323 the pixelformat has been set to V4L2_PIX_FMT_MPEG.
325 To query the current parameters, call the GO7007IOC_G_MPEG_PARAMS ioctl
326 with a pointer to a struct go7007_mpeg_params. If the driver is not
327 set to MPEG format, the EINVAL error code will be returned.
329 To change the current parameters, initialize all fields of a struct
330 go7007_mpeg_params and call the GO7007_IOC_S_MPEG_PARAMS ioctl with a
331 pointer to this structure. The driver will return the current
332 parameters with any necessary changes to conform to the limitations of
333 the hardware or selected MPEG mode. Any or all fields can be set to
334 zero to request a reasonable default value. If the driver is not set
335 to MPEG format, the EINVAL error code will be returned. When I/O is in
336 progress, the EBUSY error code will be returned.
338 Fields in struct go7007_mpeg_params:
340 enum go7007_mpeg_video_standard
341 mpeg_video_standard The MPEG video standard in which to
345 GO7007_MPEG_VIDEO_MPEG1
346 GO7007_MPEG_VIDEO_MPEG2
347 GO7007_MPEG_VIDEO_MPEG4
349 __u32 Bit-wise OR of control flags (below)
352 __u32 The profile and level indication to be
353 pali stored in the sequence header. This
354 is only used as an indicator to the
355 decoder, and does not affect the MPEG
356 features used in the video stream.
359 Choices for MPEG2 are:
360 GO7007_MPEG2_PROFILE_MAIN_MAIN
362 Choices for MPEG4 are:
363 GO7007_MPEG4_PROFILE_S_L0
364 GO7007_MPEG4_PROFILE_S_L1
365 GO7007_MPEG4_PROFILE_S_L2
366 GO7007_MPEG4_PROFILE_S_L3
367 GO7007_MPEG4_PROFILE_ARTS_L1
368 GO7007_MPEG4_PROFILE_ARTS_L2
369 GO7007_MPEG4_PROFILE_ARTS_L3
370 GO7007_MPEG4_PROFILE_ARTS_L4
371 GO7007_MPEG4_PROFILE_AS_L0
372 GO7007_MPEG4_PROFILE_AS_L1
373 GO7007_MPEG4_PROFILE_AS_L2
374 GO7007_MPEG4_PROFILE_AS_L3
375 GO7007_MPEG4_PROFILE_AS_L4
376 GO7007_MPEG4_PROFILE_AS_L5
378 Flags in struct go7007_mpeg_params:
380 GO7007_MPEG_FORCE_DVD_MODE Force all compression parameters and
381 bitrate control settings to comply
382 with DVD MPEG2 stream requirements.
383 This overrides most compression and
386 GO7007_MPEG_OMIT_GOP_HEADER Omit the GOP header.
388 GO7007_MPEG_REPEAT_SEQHEADER Repeat the MPEG sequence header at
389 the start of each GOP.
392 GO7007IOC_S_BITRATE, GO7007IOC_G_BITRATE
394 These ioctls are used to set and query the target bitrate value for the
395 compressed video stream. The bitrate may be selected by storing the
396 target bits per second in an int and calling GO7007IOC_S_BITRATE with a
397 pointer to the int. The bitrate may be queried by calling
398 GO7007IOC_G_BITRATE with a pointer to an int where the current bitrate
401 Note that this is the primary means of controlling the video quality
402 for all compression modes, including V4L2_PIX_FMT_MJPEG. The
403 VIDIOC_S_JPEGCOMP ioctl is not supported.
406 ----------------------------------------------------------------------------
407 Installing the WIS PCI Voyager Driver
408 ---------------------------------------------------------------------------
410 The WIS PCI Voyager driver requires several patches to the Linux 2.6.11.x
411 kernel source tree before compiling the driver. These patches update the
412 in-kernel SAA7134 driver to the newest development version and patch bugs
413 in the TDA8290/TDA8275 tuner driver.
415 The following patches must be downloaded from Gerd Knorr's website and
416 applied in the order listed:
418 http://dl.bytesex.org/patches/2.6.11-2/i2c-tuner
419 http://dl.bytesex.org/patches/2.6.11-2/i2c-tuner2
420 http://dl.bytesex.org/patches/2.6.11-2/v4l2-api-mpeg
421 http://dl.bytesex.org/patches/2.6.11-2/saa7134-update
423 The following patches are included with this SDK and can be applied in any
426 patches/2.6.11/saa7134-voyager.diff
427 patches/2.6.11/tda8275-newaddr.diff
428 patches/2.6.11/tda8290-ntsc.diff
430 Check to make sure the CONFIG_VIDEO_SAA7134 option is enabled in the kernel
431 configuration, and build and install the kernel.
433 After rebooting into the new kernel, the GO7007 driver can be compiled and
436 $ make SAA7134_BUILD=y
438 $ modprobe saa7134-go7007
440 There will be two V4L video devices associated with the PCI Voyager. The
441 first device (most likely /dev/video0) provides access to the raw video
442 capture mode of the SAA7133 device and is used to configure the source
443 video parameters and tune the TV tuner. This device can be used with xawtv
444 or other V4L(2) video software as a standard uncompressed device.
446 The second device (most likely /dev/video1) provides access to the
447 compression functions of the GO7007. It can be tested using the gorecord
448 application in the apps/ directory of this SDK:
450 $ apps/gorecord -vdevice /dev/video1 -noaudio test.avi
452 Currently the frame resolution is fixed at 720x480 (NTSC) or 720x576 (PAL),
453 and the video standard must be specified to both the raw and the compressed
454 video devices (xawtv and gorecord, for example).
457 --------------------------------------------------------------------------
458 RELEASE NOTES FOR WIS GO7007SB LINUX DRIVER
459 ---------------------------------------------------------------------------
461 Last updated: 5 November 2005
463 - Release 0.9.7 includes new support for using udev to run fxload. The
464 install script should automatically detect whether the old hotplug
465 scripts or the new udev rules should be used. To force the use of
466 hotplug, run "make install USE_UDEV=n". To force the use of udev, run
467 "make install USE_UDEV=y".
469 - Motion detection is supported but undocumented. Try the `modet` app
470 for a demonstration of how to use the facility.
472 - Using USB2.0 devices such as the TV402U with USB1.1 HCDs or hubs can
473 cause buffer overruns and frame drops, even at low framerates, due to
474 inconsistency in the bitrate control mechanism.
476 - On devices with an SAA7115, including the Plextor ConvertX, video height
477 values of 96, 128, 160, 192, 256, 320, and 384 do not work in NTSC mode.
478 All valid heights up to 512 work correctly in PAL mode.
480 - The WIS Star Trek and PCI Voyager boards have no support yet for audio