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path: root/drivers/media/i2c/ov7670.c
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2013-02-08[media] ov7670: remove legacy ctrl callbacksJavier Martin1-7/+0
via-camera and mcam-core were the only bridge drivers that used ov7670. Since now they have been moved to use the ctrl framework, the old legacy callbacks in the ov7670 can be removed. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-08[media] ov7670: use the control frameworkJavier Martin1-198/+112
Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-08[media] media: ov7670: Add possibility to disable pixclk during hblankJavier Martin1-0/+7
Some bridge drivers capture pixels during blanking periods if pixclk is enabled. In order to avoid capturing bogus data we need to disable pixclk in the sensor during those blanking periods. 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>
2013-02-08[media] media: ov7670: add possibility to bypass pll for ov7675Javier Martin1-2/+26
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>
2013-02-08[media] media: ov7670: calculate framerate properly for ov7675Javier Martin1-18/+118
According to the datasheet ov7675 uses a formula to achieve the desired framerate that is different from the operations done in the current code. In fact, this formula should apply to ov7670 too. This would mean that current code is wrong but, in order to preserve compatibility, the new formula will be used for ov7675 only. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-08[media] media: ov7670: make try_fmt() consistent with 'min_height' and ↵Javier Martin1-3/+19
'min_width' 'min_height' and 'min_width' are variables that allow to specify the minimum resolution that the sensor will achieve. This patch make v4l2 fmt callbacks consider this parameters in order to return valid data to user space. 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>
2013-02-08[media] media: ov7670: add support for ov7675Javier Martin1-29/+72
ov7675 and ov7670 share the same registers but there is no way to distinguish them at runtime. However, they require different tweaks to achieve the desired resolution. For this reason this patch adds a new ov7675 entry to the ov7670_id table. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-12-21[media] media: ov7670: Allow 32x maximum gain for yuv422Javier Martin1-1/+1
4x gain ceiling is not enough to capture a decent image in conditions of total darkness and only a LED light source. Allow a maximum gain of 32x instead. This doesn't have any drawback since the image quality in 'normal' light conditions is the same. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-15[media] move i2c files into drivers/media/i2cMauro Carvalho Chehab1-0/+1586
Move ancillary I2C drivers into drivers/media/i2c, in order to better organize them. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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