- 02 Apr, 2015 40 commits
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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:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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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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Hans Verkuil authored
The check_ext_ctrls() function in v4l2-ioctl.c checks if all controls in the control array are from the same control class as c->ctrl_class. However, that check should only be done if c->ctrl_class != 0. A 0 value means that this restriction does not apply. So return 1 (OK) if c->ctrl_class == 0. Found by running v4l2-compliance on the uvc driver. Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
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Hans Verkuil authored
The selection/cropping ioctls are only valid for video nodes, not for vbi. Found by v4l2-compliance when run on a VBI device node. Signed-off-by:
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Hans Verkuil authored
Commit c5036d61 ("media: au0828: drop vbi_buffer_filled() and re-use buffer_filled()") broke video and vbi streaming. The vb2_buffer struct was copied instead of taking a pointer to it, but vb2_buffer_done() needs the real object, not a copy, since it is hooking the buffer into a different list. Signed-off-by:
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Hans Verkuil authored
Fix the example of the V4L2_PIX_FMT_SGRBG8 Bayer format. The even lines should read BGBG, not RBRB. Signed-off-by:
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Hans Verkuil authored
If CONFIG_VIDEO_CX231XX_RC is undefined, then these compiler warnings are generated: In file included from drivers/media/usb/cx231xx/cx231xx-cards.c:23:0: drivers/media/usb/cx231xx/cx231xx-cards.c: In function ‘cx231xx_release_resources’: drivers/media/usb/cx231xx/cx231xx.h:982:30: warning: statement with no effect [-Wunused-value] #define cx231xx_ir_exit(dev) (0) ^ drivers/media/usb/cx231xx/cx231xx-cards.c:1158:2: note: in expansion of macro ‘cx231xx_ir_exit’ cx231xx_ir_exit(dev); ^ drivers/media/usb/cx231xx/cx231xx-cards.c: In function ‘cx231xx_init_dev’: drivers/media/usb/cx231xx/cx231xx.h:981:30: warning: statement with no effect [-Wunused-value] #define cx231xx_ir_init(dev) (0) ^ drivers/media/usb/cx231xx/cx231xx-cards.c:1351:2: note: in expansion of macro ‘cx231xx_ir_init’ cx231xx_ir_init(dev); ^ drivers/media/usb/cx231xx/cx231xx-cards.c: In function ‘cx231xx_usb_probe’: drivers/media/usb/cx231xx/cx231xx.h:982:30: warning: statement with no effect [-Wunused-value] #define cx231xx_ir_exit(dev) (0) ^ drivers/media/usb/cx231xx/cx231xx-cards.c:1705:2: note: in expansion of macro ‘cx231xx_ir_exit’ cx231xx_ir_exit(dev); ^ drivers/media/usb/cx231xx/cx231xx-cards.c: In function ‘cx231xx_usb_disconnect’: drivers/media/usb/cx231xx/cx231xx.h:982:30: warning: statement with no effect [-Wunused-value] #define cx231xx_ir_exit(dev) (0) ^ drivers/media/usb/cx231xx/cx231xx-cards.c:1754:3: note: in expansion of macro ‘cx231xx_ir_exit’ cx231xx_ir_exit(dev); ^ Fix by using static inlines instead of defines. Signed-off-by: -
Arnd Bergmann authored
All other drivers using the TI_ST infrastructure use 'depends on' for this symbol, and it makes no sense to only enable that if CONFIG_NET is enable, because the radio driver also depends on CONFIG_NET itself: ERROR: "skb_queue_purge" [drivers/media/radio/wl128x/fm_drv.ko] undefined! ERROR: "skb_push" [drivers/media/radio/wl128x/fm_drv.ko] undefined! ERROR: "skb_pull" [drivers/media/radio/wl128x/fm_drv.ko] undefined! Making the driver dependency explicit solves randconfig build problems and makes it more obvious to the reader. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Hans Verkuil authored
>From the daily build: rtl2832.c: In function 'rtl2832_read_status': rtl2832.c:703:12: warning: 'tmp' may be used uninitialized in this function [-Wmaybe-uninitialized] } else if (tmp == 10) { ^ The code is OK, it's just the compiler that cannot figure out what's going on. So just init 'tmp' to 0. Signed-off-by: -
Julia Lawall authored
The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ type T; identifier f; @@ static T f (...) { ... } @@ identifier r.f; declarer name EXPORT_SYMBOL; @@ -EXPORT_SYMBOL(f); // </smpl> Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by:
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Hans Verkuil authored
The colorspace section IDs were assigned to the title instead of to the section. Some links failed because of that. Signed-off-by:
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Hans Verkuil authored
The documentation says that the bytesperline field in v4l2_pix_format refers to the largest plane in the case of planar formats (i.e. multiple planes stores in a single buffer). For almost all planar formats the first plane is also the largest (or equal) plane, except for two formats: V4L2_PIX_FMT_NV24/NV42. For this YUV 4:4:4 format the second chroma plane is twice the size of the first luma plane. Looking at the very few drivers that support this format the bytesperline value that they report is actually that of the first plane and not that of the largest plane. Rather than fixing the drivers it makes more sense to update the documentation since it is very difficult to use the largest plane for this. You would have to check what the format is in order to know to which plane bytesperline belongs, which makes calculations much more difficult. This patch updates the documentation accordingly. Signed-off-by:
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Ezequiel Garcia authored
I'd rather use my work mail address to get patches, so let's update it. Signed-off-by:
Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by:
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Ezequiel Garcia authored
The available (i.e. not used) buffers are returned by stk1160_clear_queue(), on the stop_streaming() path. However, this is insufficient and the current buffer must be released as well. Fix it. Cc: stable@vger.kernel.org Signed-off-by:
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Lad, Prabhakar authored
Embed video_device struct (video_dev) in channel_obj and also the Unregister path doesn't need to free the video_device structure, hence, change the video_device.release callback point to video_device_release_empty. Signed-off-by:
Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by:
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Lad, Prabhakar authored
Embed video_device struct (video_dev) in channel_obj and also the Unregister path doesn't need to free the video_device structure, hence, change the video_device.release callback point to video_device_release_empty. Signed-off-by:
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Lad, Prabhakar authored
Embed video_device struct (video_dev) in bcap_device and Unregister path doesn't need to free the video_device structure, hence, change the video_device.release callback point to video_device_release_empty. Signed-off-by:
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Lad, Prabhakar authored
this patch drops bcap_get_unmapped_area() and uses vb2_fop_get_unmapped_area() helper provided by the vb2 core. Signed-off-by:
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