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1 | This is a driver for the WIS GO7007SB multi-format video encoder. |
2 | ||
3 | Pete Eberlein <pete@sensoray.com> | |
4 | ||
25985edc | 5 | The driver was originally released under the GPL and is currently hosted at: |
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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. | |
8 | ||
9 | I've modified the driver to support the following Video4Linux2 MPEG | |
10 | controls, with acceptable values: | |
11 | ||
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 | |
22 | ||
23 | These should be used instead of the non-standard GO7007 ioctls described | |
24 | below. | |
25 | ||
26 | ||
fd9a40da | 27 | The README files from the orignal package appear below: |
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28 | |
29 | --------------------------------------------------------------------------- | |
028d4c98 | 30 | WIS GO7007SB Public Linux Driver |
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31 | --------------------------------------------------------------------------- |
32 | ||
33 | ||
34 | *** Please see the file RELEASE-NOTES for important last-minute updates *** | |
35 | ||
36 | ||
37 | 0. OVERVIEW AND LICENSING/DISCLAIMER | |
38 | ||
39 | ||
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). | |
44 | ||
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. | |
48 | ||
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 | |
52 | attribution. | |
53 | ||
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. | |
57 | ||
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. | |
63 | ||
64 | ||
65 | 1. SYSTEM REQUIREMENTS | |
66 | ||
67 | ||
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. | |
71 | ||
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 | |
75 | `make` command. | |
76 | ||
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: | |
80 | ||
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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 | |
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92 | |
93 | Additionally, to use the example application, the following options need to | |
94 | be enabled in the ALSA section: | |
95 | ||
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96 | CONFIG_SND_MIXER_OSS - OSS Mixer API |
97 | CONFIG_SND_PCM_OSS - OSS PCM (digital audio) API | |
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98 | |
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. | |
103 | ||
104 | ||
105 | 2. COMPILING AND INSTALLING THE DRIVER | |
106 | ||
107 | ||
108 | Most users should be able to compile the driver by simply running: | |
109 | ||
028d4c98 | 110 | $ make |
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111 | |
112 | in the top-level directory of the driver kit. First the kernel modules | |
113 | will be built, followed by the example applications. | |
114 | ||
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: | |
119 | ||
028d4c98 | 120 | $ make KERNELSRC=/usr/src/linux-2.6.10-custom3 |
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121 | |
122 | Once the compile completes, the driver and firmware files should be | |
123 | installed by running: | |
124 | ||
028d4c98 | 125 | $ make install |
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126 | |
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. | |
132 | ||
133 | ||
134 | 3. PAL/SECAM TUNER CONFIGURATION (TV402U-EU only) | |
135 | ||
136 | ||
137 | The PAL model of the Plextor ConvertX TV402U may require additional | |
138 | configuration to correctly select the appropriate TV frequency band and | |
139 | audio subchannel. | |
140 | ||
141 | Users with a device other than the Plextor ConvertX TV402U-EU should skip | |
142 | this section. | |
143 | ||
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. | |
148 | ||
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: | |
154 | ||
155 | TV band force_band | |
156 | ------- ---------- | |
157 | PAL B/G B | |
158 | PAL I I | |
159 | PAL D/K D | |
160 | SECAM L L | |
161 | ||
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 | |
164 | module parameter. | |
165 | ||
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. | |
171 | ||
172 | TV band Audio subcarrier force_mpx_mode | |
173 | ------- ---------------- -------------- | |
174 | PAL B/G Mono (default) 1 | |
175 | PAL B/G A2 2 | |
176 | PAL B/G NICAM 3 | |
177 | PAL I Mono (default) 4 | |
178 | PAL I NICAM 5 | |
179 | PAL D/K Mono (default) 6 | |
180 | PAL D/K A2 (1) 7 | |
181 | PAL D/K A2 (2) 8 | |
182 | PAL D/K A2 (3) 9 | |
183 | PAL D/K NICAM 10 | |
184 | SECAM L Mono (default) 11 | |
185 | SECAM L NICAM 12 | |
186 | ||
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. | |
190 | ||
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. | |
194 | ||
195 | options wis-sony-tuner force_band=B force_mpx_mode=2 | |
196 | ||
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. | |
199 | ||
200 | To verify that the configuration has been placed in the correct location, | |
201 | execute: | |
202 | ||
028d4c98 | 203 | $ modprobe -c | grep wis-sony-tuner |
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204 | |
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 | |
207 | kernel. | |
208 | ||
209 | ||
210 | 4. TESTING THE DRIVER | |
211 | ||
212 | ||
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. | |
216 | ||
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. | |
221 | ||
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: | |
225 | ||
028d4c98 | 226 | $ apps/gorecord -duration 60 capture.avi |
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227 | |
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. | |
231 | ||
232 | Supplying no parameters to gorecord will cause it to probe the available | |
233 | devices and exit. Use the -help flag for usage information. | |
234 | ||
235 | ||
236 | 5. USING THE DRIVER | |
237 | ||
238 | ||
239 | The V4L2 device implemented by the driver provides a standard compressed | |
240 | format API, within the following criteria: | |
241 | ||
242 | * Applications that only support the original Video4Linux1 API will not | |
243 | be able to communicate with this driver at all. | |
244 | ||
245 | * No raw video modes are supported, so applications like xawtv that | |
246 | expect only uncompressed video will not function. | |
247 | ||
248 | * Supported compression formats are: Motion-JPEG, MPEG1, MPEG2 and MPEG4. | |
249 | ||
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. | |
253 | ||
254 | * Video parameters such as format and input port may not be changed while | |
255 | the encoder is active. | |
256 | ||
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. | |
260 | ||
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. | |
265 | ||
266 | The include/ directory contains a C header file describing non-standard | |
267 | features of the GO7007SB encoder, which are described below: | |
268 | ||
269 | ||
270 | GO7007IOC_S_COMP_PARAMS, GO7007IOC_G_COMP_PARAMS | |
271 | ||
272 | These ioctls are used to negotiate general compression parameters. | |
273 | ||
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. | |
277 | ||
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. | |
286 | ||
287 | Fields in struct go7007_comp_params: | |
288 | ||
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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 | |
292 | each key frame. | |
d73f822c | 293 | |
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294 | __u32 The maximum number of sequential |
295 | max_b_frames bidirectionally-predicted frames. | |
296 | (B-frames are not yet supported.) | |
d73f822c | 297 | |
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298 | enum go7007_aspect_ratio The aspect ratio to be encoded in the |
299 | aspect_ratio meta-data of the compressed format. | |
d73f822c | 300 | |
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301 | Choices are: |
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 | |
d73f822c | 307 | |
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308 | __u32 Bit-wise OR of control flags (below) |
309 | flags | |
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310 | |
311 | Flags in struct go7007_comp_params: | |
312 | ||
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313 | GO7007_COMP_CLOSED_GOP Only produce self-contained GOPs, used |
314 | to produce streams appropriate for | |
315 | random seeking. | |
d73f822c | 316 | |
028d4c98 | 317 | GO7007_COMP_OMIT_SEQ_HEADER Omit the stream sequence header. |
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318 | |
319 | ||
320 | GO7007IOC_S_MPEG_PARAMS, GO7007IOC_G_MPEG_PARAMS | |
321 | ||
322 | These ioctls are used to negotiate MPEG-specific stream parameters when | |
323 | the pixelformat has been set to V4L2_PIX_FMT_MPEG. | |
324 | ||
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. | |
328 | ||
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. | |
337 | ||
338 | Fields in struct go7007_mpeg_params: | |
339 | ||
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340 | enum go7007_mpeg_video_standard |
341 | mpeg_video_standard The MPEG video standard in which to | |
342 | compress the video. | |
343 | ||
344 | Choices are: | |
345 | GO7007_MPEG_VIDEO_MPEG1 | |
346 | GO7007_MPEG_VIDEO_MPEG2 | |
347 | GO7007_MPEG_VIDEO_MPEG4 | |
348 | ||
349 | __u32 Bit-wise OR of control flags (below) | |
350 | flags | |
351 | ||
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. | |
357 | Not valid for MPEG1. | |
358 | ||
359 | Choices for MPEG2 are: | |
360 | GO7007_MPEG2_PROFILE_MAIN_MAIN | |
361 | ||
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 | |
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377 | |
378 | Flags in struct go7007_mpeg_params: | |
379 | ||
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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 | |
384 | bitrate settings! | |
d73f822c | 385 | |
028d4c98 | 386 | GO7007_MPEG_OMIT_GOP_HEADER Omit the GOP header. |
d73f822c | 387 | |
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388 | GO7007_MPEG_REPEAT_SEQHEADER Repeat the MPEG sequence header at |
389 | the start of each GOP. | |
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390 | |
391 | ||
392 | GO7007IOC_S_BITRATE, GO7007IOC_G_BITRATE | |
393 | ||
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 | |
399 | will be stored. | |
400 | ||
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. | |
404 | ||
405 | ||
406 | ---------------------------------------------------------------------------- | |
028d4c98 | 407 | Installing the WIS PCI Voyager Driver |
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408 | --------------------------------------------------------------------------- |
409 | ||
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. | |
414 | ||
415 | The following patches must be downloaded from Gerd Knorr's website and | |
416 | applied in the order listed: | |
417 | ||
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 | |
422 | ||
423 | The following patches are included with this SDK and can be applied in any | |
424 | order: | |
425 | ||
426 | patches/2.6.11/saa7134-voyager.diff | |
427 | patches/2.6.11/tda8275-newaddr.diff | |
428 | patches/2.6.11/tda8290-ntsc.diff | |
429 | ||
430 | Check to make sure the CONFIG_VIDEO_SAA7134 option is enabled in the kernel | |
431 | configuration, and build and install the kernel. | |
432 | ||
433 | After rebooting into the new kernel, the GO7007 driver can be compiled and | |
434 | installed: | |
435 | ||
436 | $ make SAA7134_BUILD=y | |
437 | $ make install | |
438 | $ modprobe saa7134-go7007 | |
439 | ||
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. | |
445 | ||
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: | |
449 | ||
450 | $ apps/gorecord -vdevice /dev/video1 -noaudio test.avi | |
451 | ||
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). | |
455 | ||
456 | ||
457 | -------------------------------------------------------------------------- | |
458 | RELEASE NOTES FOR WIS GO7007SB LINUX DRIVER | |
459 | --------------------------------------------------------------------------- | |
460 | ||
461 | Last updated: 5 November 2005 | |
462 | ||
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". | |
468 | ||
469 | - Motion detection is supported but undocumented. Try the `modet` app | |
470 | for a demonstration of how to use the facility. | |
471 | ||
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. | |
475 | ||
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. | |
479 | ||
480 | - The WIS Star Trek and PCI Voyager boards have no support yet for audio | |
481 | or the TV tuner. |