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 orignal package appear 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_MODULES - Enable loadable module support
82 CONFIG_KMOD - Automatic kernel module loading
83 CONFIG_FW_LOADER - Hotplug firmware loading support
84 CONFIG_I2C - I2C support
85 CONFIG_VIDEO_DEV - Video For Linux
86 CONFIG_SOUND - Sound card support
87 CONFIG_SND - Advanced Linux Sound Architecture
88 CONFIG_USB - Support for Host-side USB
89 CONFIG_USB_EHCI_HCD - EHCI HCD (USB 2.0) support
91 Additionally, to use the example application, the following options need to
92 be enabled in the ALSA section:
94 CONFIG_SND_MIXER_OSS - OSS Mixer API
95 CONFIG_SND_PCM_OSS - OSS PCM (digital audio) API
97 The hotplug scripts, along with the fxload utility, must also be installed.
98 These scripts can be obtained from <http://linux-hotplug.sourceforge.net/>.
99 Hotplugging is used for loading firmware into the Cypruss EZ-USB chip using
100 fxload and for loading firmware into the driver using the firmware agent.
103 2. COMPILING AND INSTALLING THE DRIVER
106 Most users should be able to compile the driver by simply running:
110 in the top-level directory of the driver kit. First the kernel modules
111 will be built, followed by the example applications.
113 If the build system is unable to locate the kernel source tree for the
114 currently-running kernel, or if the module should be built for a kernel
115 other than the currently-running kernel, an additional parameter will need
116 to be passed to make to specify the appropriate kernel source directory:
118 $ make KERNELSRC=/usr/src/linux-2.6.10-custom3
120 Once the compile completes, the driver and firmware files should be
121 installed by running:
125 The kernel modules will be placed in "/lib/modules/<KERNEL VERSION>/extra"
126 and the firmware files will be placed in the appropriate hotplug firmware
127 directory, usually /lib/firmware. In addition, USB maps and scripts will
128 be placed in /etc/hotplug/usb to enable fxload to initialize the EZ-USB
129 control chip when the device is connected.
132 3. PAL/SECAM TUNER CONFIGURATION (TV402U-EU only)
135 The PAL model of the Plextor ConvertX TV402U may require additional
136 configuration to correctly select the appropriate TV frequency band and
139 Users with a device other than the Plextor ConvertX TV402U-EU should skip
142 The wide variety of PAL TV systems used in Europe requires that additional
143 information about the local TV standards be passed to the driver in order
144 to properly tune TV channels. The two necessary parameters are (a) the PAL
145 TV band, and (b) the audio subchannel format in use.
147 In many cases, the appropriate TV band selection is passed to the driver
148 from applications. However, in some cases, the application only specifies
149 that the driver should use PAL but not the specific information about the
150 appropriate TV band. To work around this issue, the correct TV band may be
151 specified in the "force_band" parameter to the wis-sony-tuner module:
160 If the "force_band" parameter is specified, the driver will ignore any TV
161 band specified by applications and will always use the band provided in the
164 The other parameter that can be specified is the audio subchannel format.
165 There are several stereo audio carrier systems in use, including NICAM and
166 three varieties of A2. To receive audio broadcast on one of these stereo
167 carriers, the "force_mpx_mode" parameter must be specified to the
168 wis-sony-tuner module.
170 TV band Audio subcarrier force_mpx_mode
171 ------- ---------------- --------------
172 PAL B/G Mono (default) 1
175 PAL I Mono (default) 4
177 PAL D/K Mono (default) 6
182 SECAM L Mono (default) 11
185 If the "force_mpx_mode" parameter is not specified, the correct mono-only
186 mode will be chosen based on the TV band. However, the tuner will not
187 receive stereo audio or bilingual broadcasts correctly.
189 To pass the "force_band" or "force_mpx_mode" parameters to the
190 wis-sony-tuner module, the following line must be added to the modprobe
191 configuration file, which varies from one Linux distribution to another.
193 options wis-sony-tuner force_band=B force_mpx_mode=2
195 The above example would force the tuner to the PAL B/G TV band and receive
196 stereo audio broadcasts on the A2 carrier.
198 To verify that the configuration has been placed in the correct location,
201 $ modprobe -c | grep wis-sony-tuner
203 If the configuration line appears, then modprobe will pass the parameters
204 correctly the next time the wis-sony-tuner module is loaded into the
208 4. TESTING THE DRIVER
211 Because few Linux applications are able to correctly capture from
212 Video4Linux2 devices with only compressed formats supported, the new driver
213 should be tested with the "gorecord" application in the apps/ directory.
215 First connect a video source to the device, such as a DVD player or VCR.
216 This will be captured to a file for testing the driver. If an input source
217 is unavailable, a test file can still be captured, but the video will be
218 black and the audio will be silent.
220 This application will auto-detect the V4L2 and ALSA/OSS device names of the
221 hardware and will record video and audio to an AVI file for a specified
222 number of seconds. For example:
224 $ apps/gorecord -duration 60 capture.avi
226 If this application does not successfully record an AVI file, the error
227 messages produced by gorecord and recorded in the system log (usually in
228 /var/log/messages) should provide information to help resolve the problem.
230 Supplying no parameters to gorecord will cause it to probe the available
231 devices and exit. Use the -help flag for usage information.
237 The V4L2 device implemented by the driver provides a standard compressed
238 format API, within the following criteria:
240 * Applications that only support the original Video4Linux1 API will not
241 be able to communicate with this driver at all.
243 * No raw video modes are supported, so applications like xawtv that
244 expect only uncompressed video will not function.
246 * Supported compression formats are: Motion-JPEG, MPEG1, MPEG2 and MPEG4.
248 * MPEG video formats are delivered as Video Elementary Streams only.
249 Program Stream (PS), Transport Stream (TS) and Packetized Elementary
250 Stream (PES) formats are not supported.
252 * Video parameters such as format and input port may not be changed while
253 the encoder is active.
255 * The audio capture device only functions when the video encoder is
256 actively capturing video. Attempts to read from the audio device when
257 the encoder is inactive will result in an I/O error.
259 * The native format of the audio device is 48Khz 2-channel 16-bit
260 little-endian PCM, delivered through the ALSA system. No audio
261 compression is implemented in the hardware. ALSA may convert to other
262 uncompressed formats on the fly.
264 The include/ directory contains a C header file describing non-standard
265 features of the GO7007SB encoder, which are described below:
268 GO7007IOC_S_COMP_PARAMS, GO7007IOC_G_COMP_PARAMS
270 These ioctls are used to negotiate general compression parameters.
272 To query the current parameters, call the GO7007IOC_G_COMP_PARAMS ioctl
273 with a pointer to a struct go7007_comp_params. If the driver is not
274 set to MPEG format, the EINVAL error code will be returned.
276 To change the current parameters, initialize all fields of a struct
277 go7007_comp_params and call the GO7007_IOC_S_COMP_PARAMS ioctl with a
278 pointer to this structure. The driver will return the current
279 parameters with any necessary changes to conform to the limitations of
280 the hardware or current compression mode. Any or all fields can be set
281 to zero to request a reasonable default value. If the driver is not
282 set to MPEG format, the EINVAL error code will be returned. When I/O
283 is in progress, the EBUSY error code will be returned.
285 Fields in struct go7007_comp_params:
287 __u32 The maximum number of frames in each
288 gop_size Group Of Pictures; i.e. the maximum
289 number of frames minus one between
292 __u32 The maximum number of sequential
293 max_b_frames bidirectionally-predicted frames.
294 (B-frames are not yet supported.)
296 enum go7007_aspect_ratio The aspect ratio to be encoded in the
297 aspect_ratio meta-data of the compressed format.
300 GO7007_ASPECT_RATIO_1_1
301 GO7007_ASPECT_RATIO_4_3_NTSC
302 GO7007_ASPECT_RATIO_4_3_PAL
303 GO7007_ASPECT_RATIO_16_9_NTSC
304 GO7007_ASPECT_RATIO_16_9_PAL
306 __u32 Bit-wise OR of control flags (below)
309 Flags in struct go7007_comp_params:
311 GO7007_COMP_CLOSED_GOP Only produce self-contained GOPs, used
312 to produce streams appropriate for
315 GO7007_COMP_OMIT_SEQ_HEADER Omit the stream sequence header.
318 GO7007IOC_S_MPEG_PARAMS, GO7007IOC_G_MPEG_PARAMS
320 These ioctls are used to negotiate MPEG-specific stream parameters when
321 the pixelformat has been set to V4L2_PIX_FMT_MPEG.
323 To query the current parameters, call the GO7007IOC_G_MPEG_PARAMS ioctl
324 with a pointer to a struct go7007_mpeg_params. If the driver is not
325 set to MPEG format, the EINVAL error code will be returned.
327 To change the current parameters, initialize all fields of a struct
328 go7007_mpeg_params and call the GO7007_IOC_S_MPEG_PARAMS ioctl with a
329 pointer to this structure. The driver will return the current
330 parameters with any necessary changes to conform to the limitations of
331 the hardware or selected MPEG mode. Any or all fields can be set to
332 zero to request a reasonable default value. If the driver is not set
333 to MPEG format, the EINVAL error code will be returned. When I/O is in
334 progress, the EBUSY error code will be returned.
336 Fields in struct go7007_mpeg_params:
338 enum go7007_mpeg_video_standard
339 mpeg_video_standard The MPEG video standard in which to
343 GO7007_MPEG_VIDEO_MPEG1
344 GO7007_MPEG_VIDEO_MPEG2
345 GO7007_MPEG_VIDEO_MPEG4
347 __u32 Bit-wise OR of control flags (below)
350 __u32 The profile and level indication to be
351 pali stored in the sequence header. This
352 is only used as an indicator to the
353 decoder, and does not affect the MPEG
354 features used in the video stream.
357 Choices for MPEG2 are:
358 GO7007_MPEG2_PROFILE_MAIN_MAIN
360 Choices for MPEG4 are:
361 GO7007_MPEG4_PROFILE_S_L0
362 GO7007_MPEG4_PROFILE_S_L1
363 GO7007_MPEG4_PROFILE_S_L2
364 GO7007_MPEG4_PROFILE_S_L3
365 GO7007_MPEG4_PROFILE_ARTS_L1
366 GO7007_MPEG4_PROFILE_ARTS_L2
367 GO7007_MPEG4_PROFILE_ARTS_L3
368 GO7007_MPEG4_PROFILE_ARTS_L4
369 GO7007_MPEG4_PROFILE_AS_L0
370 GO7007_MPEG4_PROFILE_AS_L1
371 GO7007_MPEG4_PROFILE_AS_L2
372 GO7007_MPEG4_PROFILE_AS_L3
373 GO7007_MPEG4_PROFILE_AS_L4
374 GO7007_MPEG4_PROFILE_AS_L5
376 Flags in struct go7007_mpeg_params:
378 GO7007_MPEG_FORCE_DVD_MODE Force all compression parameters and
379 bitrate control settings to comply
380 with DVD MPEG2 stream requirements.
381 This overrides most compression and
384 GO7007_MPEG_OMIT_GOP_HEADER Omit the GOP header.
386 GO7007_MPEG_REPEAT_SEQHEADER Repeat the MPEG sequence header at
387 the start of each GOP.
390 GO7007IOC_S_BITRATE, GO7007IOC_G_BITRATE
392 These ioctls are used to set and query the target bitrate value for the
393 compressed video stream. The bitrate may be selected by storing the
394 target bits per second in an int and calling GO7007IOC_S_BITRATE with a
395 pointer to the int. The bitrate may be queried by calling
396 GO7007IOC_G_BITRATE with a pointer to an int where the current bitrate
399 Note that this is the primary means of controlling the video quality
400 for all compression modes, including V4L2_PIX_FMT_MJPEG. The
401 VIDIOC_S_JPEGCOMP ioctl is not supported.
404 ----------------------------------------------------------------------------
405 Installing the WIS PCI Voyager Driver
406 ---------------------------------------------------------------------------
408 The WIS PCI Voyager driver requires several patches to the Linux 2.6.11.x
409 kernel source tree before compiling the driver. These patches update the
410 in-kernel SAA7134 driver to the newest development version and patch bugs
411 in the TDA8290/TDA8275 tuner driver.
413 The following patches must be downloaded from Gerd Knorr's website and
414 applied in the order listed:
416 http://dl.bytesex.org/patches/2.6.11-2/i2c-tuner
417 http://dl.bytesex.org/patches/2.6.11-2/i2c-tuner2
418 http://dl.bytesex.org/patches/2.6.11-2/v4l2-api-mpeg
419 http://dl.bytesex.org/patches/2.6.11-2/saa7134-update
421 The following patches are included with this SDK and can be applied in any
424 patches/2.6.11/saa7134-voyager.diff
425 patches/2.6.11/tda8275-newaddr.diff
426 patches/2.6.11/tda8290-ntsc.diff
428 Check to make sure the CONFIG_VIDEO_SAA7134 option is enabled in the kernel
429 configuration, and build and install the kernel.
431 After rebooting into the new kernel, the GO7007 driver can be compiled and
434 $ make SAA7134_BUILD=y
436 $ modprobe saa7134-go7007
438 There will be two V4L video devices associated with the PCI Voyager. The
439 first device (most likely /dev/video0) provides access to the raw video
440 capture mode of the SAA7133 device and is used to configure the source
441 video parameters and tune the TV tuner. This device can be used with xawtv
442 or other V4L(2) video software as a standard uncompressed device.
444 The second device (most likely /dev/video1) provides access to the
445 compression functions of the GO7007. It can be tested using the gorecord
446 application in the apps/ directory of this SDK:
448 $ apps/gorecord -vdevice /dev/video1 -noaudio test.avi
450 Currently the frame resolution is fixed at 720x480 (NTSC) or 720x576 (PAL),
451 and the video standard must be specified to both the raw and the compressed
452 video devices (xawtv and gorecord, for example).
455 --------------------------------------------------------------------------
456 RELEASE NOTES FOR WIS GO7007SB LINUX DRIVER
457 ---------------------------------------------------------------------------
459 Last updated: 5 November 2005
461 - Release 0.9.7 includes new support for using udev to run fxload. The
462 install script should automatically detect whether the old hotplug
463 scripts or the new udev rules should be used. To force the use of
464 hotplug, run "make install USE_UDEV=n". To force the use of udev, run
465 "make install USE_UDEV=y".
467 - Motion detection is supported but undocumented. Try the `modet` app
468 for a demonstration of how to use the facility.
470 - Using USB2.0 devices such as the TV402U with USB1.1 HCDs or hubs can
471 cause buffer overruns and frame drops, even at low framerates, due to
472 inconsistency in the bitrate control mechanism.
474 - On devices with an SAA7115, including the Plextor ConvertX, video height
475 values of 96, 128, 160, 192, 256, 320, and 384 do not work in NTSC mode.
476 All valid heights up to 512 work correctly in PAL mode.
478 - The WIS Star Trek and PCI Voyager boards have no support yet for audio