- 03 Apr, 2015 2 commits
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Hans Verkuil authored
Clarify which formats have an alpha channel and which do not by using 'x' instead of 'a' if there is no alpha channel. Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Hans Verkuil authored
Add support for (A/X)RGB444 formats. Signed-off-by:
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- 02 Apr, 2015 38 commits
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Hans Verkuil authored
Everything is in place to support these formats, so add them to the list. Signed-off-by:
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Hans Verkuil authored
Add support in vivid for downsampling. Most of the changes are in vivid_copy_buffer which needs to know about the right line widths. Signed-off-by:
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Hans Verkuil authored
Make vivid aware of the difference of planes and buffers. Note that this does not yet add support for hor/vert downsampled formats. Signed-off-by:
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Hans Verkuil authored
These fields are necessary to handle the new planar formats. Signed-off-by:
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Hans Verkuil authored
The last part of the vivid-tpg refactoring: split off the pattern drawing code into a function of its own. This greatly improves the readability and maintainability of this code. Signed-off-by:
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Hans Verkuil authored
This moves the drawing code for the extras (border, square, etc) to a function of its own instead of having this in the main for loop. Signed-off-by:
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Hans Verkuil authored
Any parameters related to drawing 'extras' like the border, the square, etc. are moved to struct tpg_draw_params. Signed-off-by:
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Hans Verkuil authored
Add a new function that fills in pattern-related fields in struct tpg_draw_params. Signed-off-by:
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Hans Verkuil authored
Replace local variables by fields in the tpg_draw_params struct. Signed-off-by:
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Hans Verkuil authored
This is needed to refactor the drawing function which is much too big. Signed-off-by:
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Hans Verkuil authored
Added 'const' to several functions where that is possible to do. Signed-off-by:
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Hans Verkuil authored
Add helper functions to handle horizontal downscaling and horizontal scaling. Signed-off-by:
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Hans Verkuil authored
Add monochrome support to the TPG. Signed-off-by:
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Hans Verkuil authored
Now that the support for hor/vert downsampled planar formats is in place we can add support for such formats to the TPG. This patch adds support for: V4L2_PIX_FMT_YUV420M V4L2_PIX_FMT_YVU420M V4L2_PIX_FMT_YUV420 V4L2_PIX_FMT_YVU420 V4L2_PIX_FMT_YUV422P V4L2_PIX_FMT_NV16 V4L2_PIX_FMT_NV61 V4L2_PIX_FMT_NV12 V4L2_PIX_FMT_NV21 V4L2_PIX_FMT_NV12P V4L2_PIX_FMT_NV21P Signed-off-by:
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Hans Verkuil authored
Implement horizontal and vertical downsampling when filling in the plane. The TPG is now ready to support such formats. Signed-off-by:
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Hans Verkuil authored
This will just skip lines/pixels since color fidelity is not quite as important here as it is with the test patterns themselves. Signed-off-by:
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Hans Verkuil authored
gen_twopix() is always called twice: once for the first and once for the second pixel. Improve the code to properly average the two if the format requires horizontal downsampling. This is necessary for patterns like 1x1 red/blue checkers. Signed-off-by:
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Hans Verkuil authored
When dealing with vertical downsampling two successive lines have to be averaged. In the case of the test pattern generator that only happens if the two lines are using different patterns. So precalculate the average between two pattern lines: one of pattern P and one of pattern P + 1. That way there is no need to do any on-the-fly downsampling: it's all done in the precalculate phase. This patch also implements horizontal downsampling in the precalculate phase. The only thing that needs to be done is to half the width since the actual downsampling happens when two pixels at a time are generated. Signed-off-by:
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Hans Verkuil authored
This is step one of supporting horizontal and vertical downsampling. This just adds support for the h/vdownsampling fields and it increases the maximum number of planes to 3. Currently none of the planar formats need horizontal or vertical downsampling, so this change has no effect at the moment. Signed-off-by:
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Hans Verkuil authored
Add helpers functions to determine the line widths and image sizes for planar formats that are stores in a single buffer. Signed-off-by:
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Hans Verkuil authored
Add a new field that contains the number of buffers. This may be less than the number of planes in case multiple planes are combined into one buffer. Signed-off-by:
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Hans Verkuil authored
Sequential top-bottom/bottom-top fields are not supported as video loopback. This is too much work to implement for field settings that are rarely used. Signed-off-by:
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Hans Verkuil authored
The grayscale values are still full range sRGB, so don't add the limited range offset. Signed-off-by:
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Hans Verkuil authored
Add a 2x2 checker patterns and 1x1 and 2x2 red/blue checker patterns. Useful for testing 4:2:2 and 4:2:0 formats. Signed-off-by:
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Hans Verkuil authored
The successive TOP/BOTTOM fields did not move as they should: only every other field actually changed position. The cause was that the tpg needs to know if it is dealing with a FIELD_ALTERNATE case since that requires slightly different handling. So tell the TPG whether or not the field setting is for the ALTERNATE case or not. Signed-off-by:
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Hans Verkuil authored
Two arrays of size 'max number of planes' have a hardcoded size instead of using TPG_MAX_PLANES. Fix that, since TPG_MAX_PLANES will be increased later on. Signed-off-by:
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Hans Verkuil authored
The condition to decide whether the current field is top or bottom was inverted. Fix this. Signed-off-by:
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Hans Verkuil authored
The plane size check was hardcoded to plane 0 instead of using the plane index. This failed when using the NV61M format which has a larger plane size for the second plane compared to the first plane. Signed-off-by:
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Hans Verkuil authored
If the vivid driver is loaded in multiplanar mode, then the capture overlay functionality should be disabled. This wasn't fully done, which led to v4l2-compliance errors. Signed-off-by:
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Laurent Pinchart authored
The clock_start and clock_stop operations are now optional, don't implement empty stubs. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
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Laurent Pinchart authored
Instead of forcing drivers to implement empty clock operations, make them optional. v4l2 clock registration in the soc-camera core should probably be conditionned on the availability of those operations, but careful review and/or testing of all drivers would be needed, so that should be a separate step. Signed-off-by:
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Laurent Pinchart authored
The v4l2 clock registered in soc_of_bind() must be unregistered if an error occurs and makes the function fail. Signed-off-by:
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Josh Wu authored
Add device tree support for ov2640. In device tree, user needs to provide the master clock (xvclk). User can add the reset/pwdn pins if they have. Cc: devicetree@vger.kernel.org Signed-off-by:
Josh Wu <josh.wu@atmel.com> Acked-by:
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Josh Wu authored
Add the document for ov2640 dt. Cc: devicetree@vger.kernel.org Signed-off-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by:
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Josh Wu authored
In async probe, there is a case that ov2640 is probed before the host device which provided 'mclk'. To support this async probe, we will get 'mclk' at first in the probe(), if failed it will return -EPROBE_DEFER. That will let ov2640 wait for the host device probed. Signed-off-by:
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Josh Wu authored
icd->control is the sub device dev, i.e. i2c device. icd->pdev is the soc camera device's device. To be consitent with power() function, we will call reset() with icd->control as well. Signed-off-by:
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Guennadi Liakhovetski authored
V4L2 clocks, e.g. used by camera sensors for their master clock, do not have to be supplied by a different V4L2 driver, they can also be supplied by an independent source. In this case the standart kernel clock API should be used to handle such clocks. This patch adds support for such cases. Signed-off-by:
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Guennadi Liakhovetski authored
All uses of the v4l2_clk API so far only register one clock with a fixed name. This allows us to get rid of it, which also will make CCF and DT integration easier. Signed-off-by:
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