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path: root/linux/drivers/media/video/sn9c102/sn9c102_ov7660.c
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2007-04-04sn9c102: more efficient register writing codeTrent Piepho
From: Trent Piepho <xyzzy@speakeasy.org> There were many places in the driver which had long sequences of constant register initializations. These were done with one function call per register. The register address and value were immediate values in the function calls. This is very inefficient, as each register and value take twice the space when they are code, as each includes a push instruction to put it on the stack. There there is the overhead, both size and time, for a function call for each register. It's also quite a few lines of C code to do this. The patch creates a function that writes multiple registers from a list, and a macro that makes it easy to construct a such a list as a const static local to send to the function. This gets rid of quite a bit of C code, and shrinks the driver by around 8k, while at the same time being more efficient. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Acked-by: Luca Risolia <luca.risolia@studio.unibo.it>
2007-03-26SN9C1xx driver updatesMauro Carvalho Chehab
From: Luca Risolia <luca.risolia@studio.unibo.it> Changes: + new, - removed, * cleanup, @ bugfix @ Don't assume that SOF headers can't cross packets boundaries @ Fix compression quality selection + Add support for MI-0360 image sensor * Documentation updates @ Fix sysfs @ MI0343 rewritten * HV7131R color fixes and add new ABLC control * Rename the archive from "sn9c102" to "sn9c1xx" * fix typos * better support for TAS5110D @ fix OV7630 wrong colors @ Don't return an error if no input buffers are enqueued yet on VIDIOC_STREAMON * Add informations about colorspaces * More appropriate error codes in case of failure of some system calls * More precise hardware detection * Add more informations about supported hardware in the documentation + More supported devices + Add support for HV7131R image sensor Signed-off-by: Luca Risolia <luca.risolia@studio.unibo.it> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-01-08Several files were missed on changeset 5062 (c2546b022fa6)Mauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> This patch should be fold to sha1 c2546b022fa6 before merging on mainstream. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>