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For a frame rate of 30 fps a pixclk of 24MHz is needed. For those cases where the ov7670 has a clean 24MHz input (xvclk) the PLL can be bypassed. This will result in a value of clkrc of 1, which means that in practice pixclk = xvclk (input clock) Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
22 lines
534 B
C
22 lines
534 B
C
/*
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* A V4L2 driver for OmniVision OV7670 cameras.
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*
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* Copyright 2010 One Laptop Per Child
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*
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* This file may be distributed under the terms of the GNU General
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* Public License, version 2.
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*/
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#ifndef __OV7670_H
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#define __OV7670_H
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struct ov7670_config {
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int min_width; /* Filter out smaller sizes */
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int min_height; /* Filter out smaller sizes */
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int clock_speed; /* External clock speed (MHz) */
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bool use_smbus; /* Use smbus I/O instead of I2C */
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bool pll_bypass; /* Choose whether to bypass the PLL */
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};
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#endif
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