Commit Graph

32 Commits

Author SHA1 Message Date
Hans Verkuil bb9ff07886 [media] vivid: fix CROP_BOUNDS typo for video output
An error was returned if composing was not supported, instead of if
cropping was not supported.

A classic copy-and-paste bug. Found with v4l2-compliance.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org>      # for v3.18
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-16 23:21:39 -02:00
Hans Verkuil 3e8a78d139 [media] vivid: add support for YCbCr encoding and quantization
Implement controls to set the YCbCr encoding and the quantization
range for the colorspace.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-02 11:18:09 -02:00
Hans Verkuil cd8adbe701 [media] vivid: add new colorspaces
Add AdobeRGB and BT.2020 support.

The colorspace control now orders the colorspaces according to how often
they are used. So rarely used colorspaces are moved to the end. This makes
it more logical when testing colorspace support.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-02 11:18:08 -02:00
Hans Verkuil 481b97a1f2 [media] vivid-tpg: improve colorspace support
Add support for the new AdobeRGB and BT.2020 colorspaces. Also support
explicit Y'CbCr and quantization settings.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-02 11:18:08 -02:00
Hans Verkuil 3930e906f3 [media] vivid-tpg-colors: add AdobeRGB and BT.2020 support
This extends the precalculated tpg_csc_colors matrix with AdobeRGB and BT.2020
colorspace support.

It also adds two precalculated tables that convert between linear RGB and non-linear
Rec.709 R'G'B' values, i.e. the Rec. 709 transfer function. This is needed to
efficiently handle the BT.2020 Constant Luminance Yc'CbcCrc encoding and decoding.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-02 11:18:07 -02:00
Hans Verkuil 952768c41a [media] vivid: enable vb2_expbuf support
Now that vb2 supports DMABUF export for dma-sg and vmalloc memory
modes, we can enable the vb2_expbuf support in vivid.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-25 09:07:35 -02:00
Prabhakar Lad 6dfa513180 [media] media: vivid: use vb2_ops_wait_prepare/finish helper
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-25 08:12:30 -02:00
Prabhakar Lad eab34eabe4 [media] media: vivid: use vb2_start_streaming_called() helper
this patch adds support for using vb2_start_streaming_called()
for vivid driver.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-14 18:16:26 -02:00
Hans Verkuil 24c4942d29 [media] vivid: add test array controls
Add array controls to test support for such controls. There is one
array with just one element, one 8x16 matrix control and one 4 dimensional
2x3x4x5 control.

This makes it possible to experiment with such controls without requiring
hard-to-get hardware.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-11 08:47:58 -02:00
Hans Verkuil cba63cf8f9 [media] vivid: default to single planar device instances
The default used to be that the first vivid device instance was
single planar, the second multi planar, the third single planar, etc.

However, that turned out to be unexpected and awkward. Change the
driver to always default to single planar.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-03 14:43:26 -02:00
Hans Verkuil c204e1fafb [media] vivid: fix buffer overrun
The random_line buffer must be twice the maximum width, but it only allocated
the maximum width, so it was only half the size it needed to be.

Surprisingly I never saw the kernel fail on this, but the same TPG code used in
qv4l2 crashed and valgrind helped me track this bug down.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-10-21 08:52:11 -02:00
Hans Verkuil 031d705c07 [media] vivid: fix Kconfig FB dependency
The vivid driver depends on FB, update the Kconfig accordingly.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-10-21 08:49:52 -02:00
Hans Verkuil 62f28725a8 [media] vivid: add teletext support to VBI capture
This is useful to test teletext capture applications like alevt and mtt.

It also fixes a previously undetected bug where the PAL VBI start line
of the second field was off by one. Using the new field start defines
helps a lot fixing such bugs.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-09-21 20:40:05 -03:00
Hans Verkuil 73d8102298 [media] vivid: tpg_reset_source prototype mismatch
Replaced enum v4l2_field by u32, just as the prototype in the
header has.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-08 10:00:58 -03:00
Hans Verkuil 5754d0d586 [media] vivid: add missing includes
Fix kbuild test robot warnings about missing vmalloc.h and string.h
includes.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-08 10:00:58 -03:00
Hans Verkuil 1d54b3a43c [media] vivid: remove duplicate and unused g/s_edid functions
I'm not sure how I missed this, but they should be removed.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-08 10:00:57 -03:00
Mauro Carvalho Chehab 6c515a44a8 [media] vivid-tpg: use true/false for boolean vars
Instead of using 0 or 1 for boolean, use the true/false
defines.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-03 17:59:19 -03:00
Mauro Carvalho Chehab 0282969190 [media] vivid-vid-out: use memdup_user()
Instead of allocating and coping from __user, do it using
one atomic call. That makes the code simpler.

Found by coccinelle.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-03 17:58:56 -03:00
Mauro Carvalho Chehab 6c1c423a54 [media] vivid: comment the unused g_edid/s_edid functions
Those non-static functions aren't used anywhere yet. Comment them
while they're unused.

Solves the following warnings:

drivers/media/platform/vivid/vivid-vid-out.c:1120:5: warning: no previous prototype for 'vivid_vid_out_g_edid' [-Wmissing-prototypes]
 int vivid_vid_out_g_edid(struct file *file, void *_fh,
     ^
drivers/media/platform/vivid/vivid-vid-out.c:1152:5: warning: no previous prototype for 'vivid_vid_out_s_edid' [-Wmissing-prototypes]
 int vivid_vid_out_s_edid(struct file *file, void *_fh,
     ^

Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 18:01:05 -03:00
Mauro Carvalho Chehab 20504fa92d [media] vivid: Don't declare .vidioc_overlay twice
Removes the following warnings:

drivers/media/platform/vivid/vivid-core.c:581:2: warning: initialized field overwritten [-Woverride-init]
  .vidioc_overlay   = vidioc_overlay,
  ^
drivers/media/platform/vivid/vivid-core.c:581:2: warning: (near initialization for 'vivid_ioctl_ops.vidioc_overlay') [-Woverride-init]

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:58:59 -03:00
Mauro Carvalho Chehab 96ec7d2a66 [media] vivid: add some missing headers
That remove a few warnings:

drivers/media/platform/vivid/vivid-kthread-out.c:226:5: warning: no previous prototype for 'vivid_start_generating_vid_out' [-Wmissing-prototypes]
 int vivid_start_generating_vid_out(struct vivid_dev *dev, bool *pstreaming)
     ^
drivers/media/platform/vivid/vivid-kthread-out.c:260:6: warning: no previous prototype for 'vivid_stop_generating_vid_out' [-Wmissing-prototypes]
 void vivid_stop_generating_vid_out(struct vivid_dev *dev, bool *pstreaming)
      ^
drivers/media/platform/vivid/vivid-kthread-cap.c:806:5: warning: no previous prototype for 'vivid_start_generating_vid_cap' [-Wmissing-prototypes]
 int vivid_start_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming)
     ^
drivers/media/platform/vivid/vivid-kthread-cap.c:841:6: warning: no previous prototype for 'vivid_stop_generating_vid_cap' [-Wmissing-prototypes]
 void vivid_stop_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming)
      ^

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:57:34 -03:00
Hans Verkuil e75420dd25 [media] vivid: enable the vivid driver
Update the Kconfig and Makefile files so this driver can be compiled.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:54:12 -03:00
Mauro Carvalho Chehab 1fc78bc9d4 [media] vivid: Don't mess with namespace adding a "get_format" function
This fixes a compilation error with allyesconfig:

drivers/media/platform/exynos-gsc/built-in.o: In function `get_format':
(.text+0x12f5): multiple definition of `get_format'
drivers/media/platform/vivid/built-in.o:(.text+0x4bf4): first defined here

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:54:07 -03:00
Hans Verkuil 6de8653f41 [media] vivid: add support for software defined radio
This adds support for an SDR capture device. It generates simple
sine/cosine waves. The code for that has been contributed by
Antti.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:48:13 -03:00
Hans Verkuil 55d58e9898 [media] vivid: add support for radio receivers and transmitters
This adds radio receiver and transmitter support. Part of that is common
to both and so is placed in the radio-common source.

These drivers also support RDS. In order to generate valid RDS data a
simple RDS generator is implemented in rds-gen.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:47:03 -03:00
Hans Verkuil 63881df94d [media] vivid: add the Test Pattern Generator
The test patterns for video capture are generated by this code. All patterns
are precalculated taking into account colorspace information, pixel and video
aspect ratios and scaling information.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:46:05 -03:00
Hans Verkuil ad4e02d508 [media] vivid: add a simple framebuffer device for overlay testing
In order to test capture and output overlays a simple framebuffer
device is created. It's bare bone, but it does the job.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:42:53 -03:00
Hans Verkuil 3f682ffcf9 [media] vivid: add the kthread code that controls the video rate
Add the kthread handlers for video/vbi capture and video/vbi output.
These carefully control the rate at which frames are generated (video
capture) and accepted (video output). While the short-term jitter is
around the order of a jiffie, in the long term the rate matches the
configured framerate exactly.

The capture thread handler also takes care of the video looping and
of capture and overlay support. This is probably the most complex part
of this driver due to the many combinations of crop, compose and scaling
on the input and output, and the blending that has to be done if
overlay support is enabled as well.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:41:54 -03:00
Hans Verkuil 7bb70caa3b [media] vivid: add VBI capture and output code
This adds support for VBI capture (raw and sliced) and VBI output
(raw and sliced) to the vivid driver. In addition a VBI generator
is added that generates simple VBI data in either sliced or raw
format.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:19:27 -03:00
Hans Verkuil ef834f7836 [media] vivid: add the video capture and output parts
This adds the ioctl and vb2 queue support for video capture and output.
Part of this is common to both, so that is placed in a vid-common source.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:15:26 -03:00
Hans Verkuil 73c3f48230 [media] vivid: add the control handling code
The vivid-ctrls code sets up and processes the various V4L2 controls
that are needed by this driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:07:44 -03:00
Hans Verkuil c88a96b023 [media] vivid: add core driver code
This is the core driver code that creates all the driver instances
and all the configured devices.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02 17:03:26 -03:00