mirror of https://gitee.com/openkylin/linux.git
0c5db42551
I have a GeoVision GV-800(S) card, it has 4 CONEXANT BT878A chips. It has 16 video inputs and 4 audio inputs, and it is almost identical to the GV-800, as seen on http://bttv-gallery.de . The only difference appears to be the analog mux, it has a CD22M3494 in place of the MT8816AP. The card has a blue PCB, as seen in this picture: http://www.gsbr.com.br/imagem/kits/GeoVision%20GV%20800.jpg . This card wasn't originally supported, and it was detected as UNKNOWN/GENERIC. The video inputs weren't working, so I tried "forcing" a few cards like the GeoVision GV-600, but there was still no video. So I made a patch to support this card, based on the Kodicom 4400r. The GV-800(S) is identified as follows: ... 02:00.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11) 02:00.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11) 02:04.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11) 02:04.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11) 02:08.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11) 02:08.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11) 02:0c.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11) 02:0c.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11) ... 02:00.0 0400: 109e:036e (rev 11) Subsystem: 800a:763d Flags: bus master, medium devsel, latency 32, IRQ 10 Memory at cdfff000 (32-bit, prefetchable) [size=4K] Capabilities: [44] Vital Product Data <?> Capabilities: [4c] Power Management version 2 Kernel modules: bttv 02:00.1 0480: 109e:0878 (rev 11) Subsystem: 800a:763d Flags: bus master, medium devsel, latency 32, IRQ 10 Memory at cdffe000 (32-bit, prefetchable) [size=4K] Capabilities: [44] Vital Product Data <?> Capabilities: [4c] Power Management version 2 02:04.0 0400: 109e:036e (rev 11) Subsystem: 800b:763d Flags: bus master, medium devsel, latency 32, IRQ 10 Memory at cdffd000 (32-bit, prefetchable) [size=4K] Capabilities: [44] Vital Product Data <?> Capabilities: [4c] Power Management version 2 Kernel modules: bttv 02:04.1 0480: 109e:0878 (rev 11) Subsystem: 800b:763d Flags: bus master, medium devsel, latency 32, IRQ 10 Memory at cdffc000 (32-bit, prefetchable) [size=4K] Capabilities: [44] Vital Product Data <?> Capabilities: [4c] Power Management version 2 02:08.0 0400: 109e:036e (rev 11) Subsystem: 800c:763d Flags: bus master, medium devsel, latency 32, IRQ 10 Memory at cdffb000 (32-bit, prefetchable) [size=4K] Capabilities: [44] Vital Product Data <?> Capabilities: [4c] Power Management version 2 Kernel modules: bttv 02:08.1 0480: 109e:0878 (rev 11) Subsystem: 800c:763d Flags: bus master, medium devsel, latency 32, IRQ 10 Memory at cdffa000 (32-bit, prefetchable) [size=4K] Capabilities: [44] Vital Product Data <?> Capabilities: [4c] Power Management version 2 02:0c.0 0400: 109e:036e (rev 11) Subsystem: 800d:763d Flags: bus master, medium devsel, latency 32, IRQ 10 Memory at cdff9000 (32-bit, prefetchable) [size=4K] Capabilities: [44] Vital Product Data <?> Capabilities: [4c] Power Management version 2 Kernel modules: bttv 02:0c.1 0480: 109e:0878 (rev 11) Subsystem: 800d:763d Flags: bus master, medium devsel, latency 32, IRQ 10 Memory at cdff8000 (32-bit, prefetchable) [size=4K] Capabilities: [44] Vital Product Data <?> Capabilities: [4c] Power Management version 2 As you can see, the GV-800(S) card is almost identical to the GV-800 on bttv-gallery, so this patch might also work for that card. If not, only a few changes should be required on the gv800s_write() function. After this patch, the video inputs work correctly on linux 2.6.24 and 2.6.27 using the software 'motion'. The input order may seem a little odd, but it's the order the original software/driver uses, and I decided to keep that order to get the most out of the card. I tried to get the audio working with the snd-bt87x module, but I only get noise from every audio input, even after selecting a different mux with alsamixer. Also, after trying to play sound from those sources, I randomly get a RISC error about an invalid RISC opcode, and then that output stops working. I also can't change the sampling rate when recording. Any pointers to adding audio support are welcome. Signed-off-by: Bruno Christo <bchristo@inf.ufsm.br> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> |
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|---|---|---|
| .. | ||
| bttv | ||
| cx88 | ||
| cx2341x | ||
| .gitignore | ||
| API.html | ||
| CARDLIST.au0828 | ||
| CARDLIST.bttv | ||
| CARDLIST.cx88 | ||
| CARDLIST.cx23885 | ||
| CARDLIST.em28xx | ||
| CARDLIST.ivtv | ||
| CARDLIST.saa7134 | ||
| CARDLIST.tuner | ||
| CARDLIST.usbvision | ||
| CQcam.txt | ||
| Makefile | ||
| README.cpia | ||
| README.cpia2 | ||
| README.cx88 | ||
| README.ir | ||
| README.ivtv | ||
| README.pvrusb2 | ||
| README.saa7134 | ||
| Zoran | ||
| cafe_ccic | ||
| cpia2_overview.txt | ||
| cx18.txt | ||
| et61x251.txt | ||
| extract_xc3028.pl | ||
| gspca.txt | ||
| hauppauge-wintv-cx88-ir.txt | ||
| ibmcam.txt | ||
| lifeview.txt | ||
| m5602.txt | ||
| meye.txt | ||
| not-in-cx2388x-datasheet.txt | ||
| ov511.txt | ||
| radiotrack.txt | ||
| se401.txt | ||
| si470x.txt | ||
| sn9c102.txt | ||
| soc-camera.txt | ||
| stv680.txt | ||
| v4l2-framework.txt | ||
| v4lgrab.c | ||
| w9966.txt | ||
| w9968cf.txt | ||
| zc0301.txt | ||
| zr364xx.txt | ||
README.saa7134
What is it?
===========
This is a v4l2/oss device driver for saa7130/33/34/35 based capture / TV
boards. See http://www.semiconductors.philips.com/pip/saa7134hl for a
description.
Status
======
Almost everything is working. video, sound, tuner, radio, mpeg ts, ...
As with bttv, card-specific tweaks are needed. Check CARDLIST for a
list of known TV cards and saa7134-cards.c for the drivers card
configuration info.
Build
=====
Pick up videodev + v4l2 patches from http://bytesex.org/patches/.
Configure, build, install + boot the new kernel. You'll need at least
these config options:
CONFIG_I2C=m
CONFIG_VIDEO_DEV=m
Type "make" to build the driver now. "make install" installs the
driver. "modprobe saa7134" should load it. Depending on the card you
might have to pass card=<nr> as insmod option, check CARDLIST for
valid choices.
Changes / Fixes
===============
Please mail me unified diffs ("diff -u") with your changes, and don't
forget to tell me what it changes / which problem it fixes / whatever
it is good for ...
Known Problems
==============
* The tuner for the flyvideos isn't detected automatically and the
default might not work for you depending on which version you have.
There is a tuner= insmod option to override the driver's default.
Card Variations:
================
Cards can use either of these two crystals (xtal):
- 32.11 MHz -> .audio_clock=0x187de7
- 24.576MHz -> .audio_clock=0x200000
(xtal * .audio_clock = 51539600)
Some details about 30/34/35:
- saa7130 - low-price chip, doesn't have mute, that is why all those
cards should have .mute field defined in their tuner structure.
- saa7134 - usual chip
- saa7133/35 - saa7135 is probably a marketing decision, since all those
chips identifies itself as 33 on pci.
Credits
=======
andrew.stevens@philips.com + werner.leeb@philips.com for providing
saa7134 hardware specs and sample board.
Have fun,
Gerd
--
Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]