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33 lines
1.2 KiB
Text
33 lines
1.2 KiB
Text
W9966 Camera driver, written by Jakob Kemi (jakob.kemi@telia.com)
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After a lot of work in softice & wdasm, reading .pdf-files and tiresome
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trial-and-error work I've finally got everything to work. I needed vision for a
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robotics project so I borrowed this camera from a friend and started hacking.
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Anyway I've converted my original code from the AVR 8bit RISC C/ASM code into
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a working Linux driver.
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To get it working simply configure your kernel to support
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parport, ieee1284, video4linux and w9966
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If w9966 is statically linked it will always perform aggressive probing for
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the camera. If built as a module you'll have more configuration options.
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Options:
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modprobe w9966.o pardev=parport0(or whatever) parmode=0 (0=auto, 1=ecp, 2=epp)
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voila!
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you can also type 'modinfo -p w9966.o' for option usage
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(or checkout w9966.c)
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The only thing to keep in mind is that the image format is in Y-U-Y-V format
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where every two pixels take 4 bytes. In SDL (www.libsdl.org) this format
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is called VIDEO_PALETTE_YUV422 (16 bpp).
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A minimal test application (with source) is available from:
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http://hem.fyristorg.com/mogul/w9966.html
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The slow framerate is due to missing DMA ECP read support in the
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parport drivers. I might add working EPP support later.
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Good luck!
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/Jakob Kemi
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