deliverable/linux.git
7 years ago[media] v4l: vsp1: rwpf: Support runtime modification of controls
Laurent Pinchart [Mon, 20 Jun 2016 08:04:38 +0000 (05:04 -0300)] 
[media] v4l: vsp1: rwpf: Support runtime modification of controls

Allow reconfiguration of the alpha value at runtime.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Simplify alpha propagation
Laurent Pinchart [Mon, 20 Jun 2016 02:19:43 +0000 (23:19 -0300)] 
[media] v4l: vsp1: Simplify alpha propagation

We don't need to walk the pipeline when propagating the alpha value as
all the information needed for propagation is already available from the
pipeline structure.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: clu: Support runtime modification of controls
Laurent Pinchart [Sat, 11 Jun 2016 07:11:27 +0000 (04:11 -0300)] 
[media] v4l: vsp1: clu: Support runtime modification of controls

Allow reconfiguration of the look-up table and processing mode at
runtime.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: lut: Support runtime modification of controls
Laurent Pinchart [Sat, 11 Jun 2016 07:11:27 +0000 (04:11 -0300)] 
[media] v4l: vsp1: lut: Support runtime modification of controls

Allow reconfiguration of the look-up table at runtime.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Support runtime modification of controls
Laurent Pinchart [Sat, 11 Jun 2016 07:07:56 +0000 (04:07 -0300)] 
[media] v4l: vsp1: Support runtime modification of controls

Controls are applied to the hardware in the configure operation of the
VSP entities, which is only called when starting the video stream. To
enable runtime modification of controls we need to call the configure
operations for every frame. Doing so is currently not safe, as most
parameters shouldn't be modified during streaming. Furthermore the
configure operation can sleep, preventing it from being called from the
frame completion interrupt handler for the next frame.

Fix this by adding an argument to the configure operation to tell
entities whether to perform a full configuration (as done now) or a
partial runtime configuration. In the latter case the operation will
only configure the subset of parameters related to runtime-configurable
controls, and won't be allowed to sleep when doing so.

Because partial reconfiguration can depend on parameters computed when
performing a full configuration, the core guarantees that the configure
operation will always be called with full and partial modes in that
order at stream start. Entities thus don't have to duplicate
configuration steps in the full and partial code paths.

This change affects the VSP driver core only, all entities return
immediately from the configure operation when called for a partial
runtime configuration. Entities will be modified one by one in further
commits.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Add Cubic Look Up Table (CLU) support
Laurent Pinchart [Thu, 12 Nov 2015 01:04:44 +0000 (23:04 -0200)] 
[media] v4l: vsp1: Add Cubic Look Up Table (CLU) support

The CLU processing block is a 2D/3D lookup table that converts the input
three color component data into desired three color components using a
lookup table.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: lut: Expose configuration through a control
Laurent Pinchart [Fri, 13 May 2016 16:52:11 +0000 (13:52 -0300)] 
[media] v4l: vsp1: lut: Expose configuration through a control

Replace the custom ioctl with a V4L2 control in order to standardize the
API.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: lut: Initialize the mutex
Laurent Pinchart [Fri, 13 May 2016 21:15:59 +0000 (18:15 -0300)] 
[media] v4l: vsp1: lut: Initialize the mutex

The LUT mutex isn't initialized when creating the LUT, fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: dl: Don't free fragments with interrupts disabled
Laurent Pinchart [Fri, 13 May 2016 22:17:02 +0000 (19:17 -0300)] 
[media] v4l: vsp1: dl: Don't free fragments with interrupts disabled

Freeing a fragment requires freeing DMA coherent memory, which can be
performed with interrupts disabled as per the DMA mapping API contract.
The fragments can't thus be freed synchronously when a display list is
recycled. Instead, move the fragments to a garbage list and use a work
queue to run the garbage collection.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Set entities functions
Laurent Pinchart [Tue, 16 Feb 2016 00:10:26 +0000 (22:10 -0200)] 
[media] v4l: vsp1: Set entities functions

Initialize the function field of all subdev entities instantiated by the
driver. This gets rids of multiple warnings printed by the media
controller core.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Don't create LIF entity when the userspace API is enabled
Laurent Pinchart [Fri, 13 May 2016 16:10:57 +0000 (13:10 -0300)] 
[media] v4l: vsp1: Don't create LIF entity when the userspace API is enabled

The LIF is only used when feeding the VSP output to the DU. The only way
to do so is by controlling the VSP directly from the DU driver and
disabling the VSP userspace API. There is thus no need to create a LIF
entity when the userspace API is enabled, as it can't be used in that
case.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Don't register media device when userspace API is disabled
Laurent Pinchart [Fri, 13 May 2016 16:09:25 +0000 (13:09 -0300)] 
[media] v4l: vsp1: Don't register media device when userspace API is disabled

The media device doesn't need to be exposed to userspace when the VSP is
fully controlled by the DU driver. Don't register it in that case.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Base link creation on availability of entities
Laurent Pinchart [Fri, 13 May 2016 16:04:51 +0000 (13:04 -0300)] 
[media] v4l: vsp1: Base link creation on availability of entities

Check the entity pointer instead of the feature flag to see if the
entity is available before creating related links. The two methods are
currently equivalent, but will differ in the future as we implement
support for ignoring some of the entities present in the hardware.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] media: Add video statistics computation functions
Laurent Pinchart [Wed, 2 Mar 2016 00:12:27 +0000 (21:12 -0300)] 
[media] media: Add video statistics computation functions

The video statistics function describes entities such as video histogram
engines or 3A statistics engines.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] media: Add video processing entity functions
Laurent Pinchart [Tue, 16 Feb 2016 00:00:30 +0000 (22:00 -0200)] 
[media] media: Add video processing entity functions

Add composer, pixel formatter, pixel encoding converter and scaler
functions.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: sru: Fix intensity control ID
Laurent Pinchart [Thu, 16 Jun 2016 22:33:43 +0000 (19:33 -0300)] 
[media] v4l: vsp1: sru: Fix intensity control ID

The intensity control reused the V4L2_CID_CONTRAST control ID by
mistake. Fix it by using an ID from the device-specific IDs range.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Stop the pipeline upon the first STREAMOFF
Laurent Pinchart [Sat, 18 Jun 2016 00:03:29 +0000 (21:03 -0300)] 
[media] v4l: vsp1: Stop the pipeline upon the first STREAMOFF

The device is stopped when STREAMOFF is called on the last video node in
the pipeline. This results in possible memory corruption and/or crashes,
as userspace could free buffers while the hardware is still writing to
them, and the frame completion interrupt handler could try to access
buffers that don't exist anymore.

Fix this by stopping the pipeline upon the first STREAMOFF call, not the
last.

Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Constify operation structures
Laurent Pinchart [Sat, 18 Jun 2016 00:11:26 +0000 (21:11 -0300)] 
[media] v4l: vsp1: Constify operation structures

The structures are never modified, make them const.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: pipe: Fix typo in comment
Laurent Pinchart [Fri, 13 May 2016 22:13:51 +0000 (19:13 -0300)] 
[media] v4l: vsp1: pipe: Fix typo in comment

The vsp1_pipeline wq field is a wait queue, not a work queue. Fix the
comment accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Fix crash when resetting pipeline
Laurent Pinchart [Wed, 18 May 2016 23:01:21 +0000 (20:01 -0300)] 
[media] v4l: vsp1: Fix crash when resetting pipeline

The vsp1_pipeline_reset() function loops over pipeline inputs and output
and resets them. When doing so it assumes both that the pipeline has
been correctly configured with an output, and that inputs are are stored
in the pipe inputs array at positions 0 to num_inputs-1.

Both the assumptions are incorrect. The pipeline might need to be reset
after a failed attempts to configure it, without any output specified.
Furthermore, inputs are stored in a positiong equal to their RPF index,
possibly creating holes in the inputs array if the RPFs are not used in
sequence.

Fix both issues by looping over the whole inputs array and skipping
unused entries, and ignoring the output when not set.

Fixes: ff7e97c94d9f ("[media] v4l: vsp1: Store pipeline pointer in rwpf")
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Fix descriptions of Gen2 VSP instances
Laurent Pinchart [Tue, 17 May 2016 07:23:33 +0000 (04:23 -0300)] 
[media] v4l: vsp1: Fix descriptions of Gen2 VSP instances

The number of UDS and WPF are set to incorrect values, fix them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Fix typo in register field names
Laurent Pinchart [Sun, 15 May 2016 21:15:47 +0000 (18:15 -0300)] 
[media] v4l: vsp1: Fix typo in register field names

The VI6_RPF_ALPH_SEL ALPHA0 and ALPHA1 fields are inverted, swap them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Remove deprecated DRM API
Laurent Pinchart [Sat, 23 Apr 2016 23:11:59 +0000 (20:11 -0300)] 
[media] v4l: vsp1: Remove deprecated DRM API

The DRM driver has switched to the new API, remove the deprecated macros
and inline wrapper.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] drm: rcar-du: Add Z-order support for VSP planes
Laurent Pinchart [Thu, 24 Mar 2016 08:15:59 +0000 (05:15 -0300)] 
[media] drm: rcar-du: Add Z-order support for VSP planes

Make the Z-order of VSP planes configurable through the zpos property,
exactly as for the native DU planes.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] drm: rcar-du: Add alpha support for VSP planes
Laurent Pinchart [Thu, 24 Mar 2016 08:15:59 +0000 (05:15 -0300)] 
[media] drm: rcar-du: Add alpha support for VSP planes

Make the global alpha multiplier of VSP planes configurable through the
alpha property, exactly as for the native DU planes.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Group DRM RPF parameters in a structure
Laurent Pinchart [Sat, 23 Apr 2016 22:08:59 +0000 (19:08 -0300)] 
[media] v4l: vsp1: Group DRM RPF parameters in a structure

The vsp1_du_atomic_update_ext() function takes 7 RPF configuration
parameters, and more will likely be added later. This makes the code
difficult to read and error-prone as multiple parameters have the same
type.

Make the API safer and easier to extend in the future by grouping all
parameters in a structure. Use macro magic to ease the transition to the
new function by allowing the old and new functions to be called using
the same name. The macros and static inline wrapper will be removed as
soon as the caller is updated.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Move frame sequence number from video node to pipeline
Laurent Pinchart [Sun, 10 Apr 2016 05:59:04 +0000 (02:59 -0300)] 
[media] v4l: vsp1: Move frame sequence number from video node to pipeline

The frame sequence number is global to the pipeline, there's no need to
store copies in each video node.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Make vsp1_entity_get_pad_compose() more generic
Laurent Pinchart [Thu, 3 Mar 2016 23:17:49 +0000 (20:17 -0300)] 
[media] v4l: vsp1: Make vsp1_entity_get_pad_compose() more generic

Turn the helper into a function that can retrieve crop and compose
selection rectangles.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Replace container_of() with dedicated macro
Laurent Pinchart [Thu, 3 Mar 2016 23:06:22 +0000 (20:06 -0300)] 
[media] v4l: vsp1: Replace container_of() with dedicated macro

Add a macro to cast from a struct media_entity to a struct vsp1_entity
to replace the manual implementations.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Add output node value to routing table
Laurent Pinchart [Wed, 24 Feb 2016 22:10:04 +0000 (19:10 -0300)] 
[media] v4l: vsp1: Add output node value to routing table

The output node value indicates the value to be used in a sampling point
register to use the node as the source of histogram data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Add FCP support
Laurent Pinchart [Fri, 12 Feb 2016 00:49:14 +0000 (22:49 -0200)] 
[media] v4l: vsp1: Add FCP support

On some platforms the VSP performs memory accesses through an FCP. When
that's the case get a reference to the FCP from the VSP DT node and
enable/disable it at runtime as needed.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Don't handle clocks manually
Laurent Pinchart [Tue, 16 Feb 2016 13:49:39 +0000 (11:49 -0200)] 
[media] v4l: vsp1: Don't handle clocks manually

The power domain performs functional clock handling when using runtime
PM, there's no need to enable and disable the clock manually.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: vsp1: Implement runtime PM support
Laurent Pinchart [Tue, 16 Feb 2016 13:49:39 +0000 (11:49 -0200)] 
[media] v4l: vsp1: Implement runtime PM support

Replace the manual refcount and clock management code by runtime PM.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] v4l: Add Renesas R-Car FCP driver
Laurent Pinchart [Fri, 12 Feb 2016 00:29:58 +0000 (22:29 -0200)] 
[media] v4l: Add Renesas R-Car FCP driver

The FCP is a companion module of video processing modules in the
Renesas R-Car Gen3 SoCs. It provides data compression and decompression,
data caching, and conversion of AXI transactions in order to reduce the
memory bandwidth.

The driver is not meant to be used standalone but provides an API to the
video processing modules to control the FCP.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] dt-bindings: Add Renesas R-Car FCP DT bindings
Laurent Pinchart [Sat, 23 Apr 2016 23:37:44 +0000 (20:37 -0300)] 
[media] dt-bindings: Add Renesas R-Car FCP DT bindings

The FCP is a companion module of video processing modules in the Renesas
R-Car Gen3 SoCs. It provides data compression and decompression, data
caching, and conversion of AXI transactions in order to reduce the
memory bandwidth.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media-devnode.h: Fix documentation
Mauro Carvalho Chehab [Thu, 16 Jun 2016 11:04:40 +0000 (08:04 -0300)] 
[media] media-devnode.h: Fix documentation

Two parameters were documented with a wrong name, and a struct
device pointer description was missing.

That caused the following warnings, when building documentation:

include/media/media-devnode.h:102: warning: No description found for parameter 'media_dev'
include/media/media-devnode.h:126: warning: No description found for parameter 'mdev'
include/media/media-devnode.h:126: warning: Excess function parameter 'media_dev' description in 'media_devnode_register'

Rename the description, to match the function parameter and fix
Documentation.

No funcional changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] rcar-vin: get rid of an unused var
Mauro Carvalho Chehab [Thu, 16 Jun 2016 10:44:42 +0000 (07:44 -0300)] 
[media] rcar-vin: get rid of an unused var

drivers/media/platform/rcar-vin/rcar-core.c: In function 'rvin_graph_notify_complete':
drivers/media/platform/rcar-vin/rcar-core.c:65:22: warning: variable 'sd' set but not used [-Wunused-but-set-variable]
  struct v4l2_subdev *sd;
                      ^

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] rcar-vin: add Renesas R-Car VIN driver
Niklas Söderlund [Tue, 26 Apr 2016 13:22:19 +0000 (10:22 -0300)] 
[media] rcar-vin: add Renesas R-Car VIN driver

A V4L2 driver for Renesas R-Car VIN driver that do not depend on
soc_camera. The driver is heavily based on its predecessor and aims to
replace it.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] videobuf2-v4l2: Verify planes array in buffer dequeueing
Sakari Ailus [Sun, 3 Apr 2016 19:31:03 +0000 (16:31 -0300)] 
[media] videobuf2-v4l2: Verify planes array in buffer dequeueing

When a buffer is being dequeued using VIDIOC_DQBUF IOCTL, the exact buffer
which will be dequeued is not known until the buffer has been removed from
the queue. The number of planes is specific to a buffer, not to the queue.

This does lead to the situation where multi-plane buffers may be requested
and queued with n planes, but VIDIOC_DQBUF IOCTL may be passed an argument
struct with fewer planes.

__fill_v4l2_buffer() however uses the number of planes from the dequeued
videobuf2 buffer, overwriting kernel memory (the m.planes array allocated
in video_usercopy() in v4l2-ioctl.c)  if the user provided fewer
planes than the dequeued buffer had. Oops!

Fixes: b0e0e1f83de3 ("[media] media: videobuf2: Prepare to divide videobuf2")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org # for v4.4 and later
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] vb2: core: Skip planes array verification if pb is NULL
Sakari Ailus [Wed, 11 May 2016 21:44:32 +0000 (18:44 -0300)] 
[media] vb2: core: Skip planes array verification if pb is NULL

An earlier patch fixing an input validation issue introduced another
issue: vb2_core_dqbuf() is called with pb argument value NULL in some
cases, causing a NULL pointer dereference. Fix this by skipping the
verification as there's nothing to verify.

Fixes: e7e0c3e26587 ("[media] videobuf2-core: Check user space planes array in dqbuf")
Signed-off-by: David R <david@unsolicited.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org # for v4.4 and later
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media: fix media devnode ioctl/syscall and unregister race
Shuah Khan [Fri, 10 Jun 2016 17:37:23 +0000 (14:37 -0300)] 
[media] media: fix media devnode ioctl/syscall and unregister race

Media devnode open/ioctl could be in progress when media device unregister
is initiated. System calls and ioctls check media device registered status
at the beginning, however, there is a window where unregister could be in
progress without changing the media devnode status to unregistered.

process 1 process 2
fd = open(/dev/media0)
media_devnode_is_registered()
(returns true here)

media_device_unregister()
(unregister is in progress
and devnode isn't
unregistered yet)
...
ioctl(fd, ...)
__media_ioctl()
media_devnode_is_registered()
(returns true here)
...
media_devnode_unregister()
...
(driver releases the media device
memory)

media_device_ioctl()
(By this point
devnode->media_dev does not
point to allocated memory.
use-after free in in mutex_lock_nested)

BUG: KASAN: use-after-free in mutex_lock_nested+0x79c/0x800 at addr
ffff8801ebe914f0

Fix it by clearing register bit when unregister starts to avoid the race.

process 1                               process 2
fd = open(/dev/media0)
media_devnode_is_registered()
        (could return true here)

                                        media_device_unregister()
                                                (clear the register bit,
 then start unregister.)
                                        ...
ioctl(fd, ...)
__media_ioctl()
media_devnode_is_registered()
        (return false here, ioctl
 returns I/O error, and
 will not access media
 device memory)
                                        ...
                                        media_devnode_unregister()
                                        ...
                                        (driver releases the media device
 memory)

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reported-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Tested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media: fix use-after-free in cdev_put() when app exits after driver unbind
Shuah Khan [Wed, 4 May 2016 19:48:28 +0000 (16:48 -0300)] 
[media] media: fix use-after-free in cdev_put() when app exits after driver unbind

When driver unbinds while media_ioctl is in progress, cdev_put() fails with
when app exits after driver unbinds.

Add devnode struct device kobj as the cdev parent kobject. cdev_add() gets
a reference to it and releases it in cdev_del() ensuring that the devnode
is not deallocated as long as the application has the device file open.

media_devnode_register() initializes the struct device kobj before calling
cdev_add(). media_devnode_unregister() does cdev_del() and then deletes the
device. devnode is released when the last reference to the struct device is
gone.

This problem is found on uvcvideo, em28xx, and au0828 drivers and fix has
been tested on all three.

kernel: [  193.599736] BUG: KASAN: use-after-free in cdev_put+0x4e/0x50
kernel: [  193.599745] Read of size 8 by task media_device_te/1851
kernel: [  193.599792] INFO: Allocated in __media_device_register+0x54
kernel: [  193.599951] INFO: Freed in media_devnode_release+0xa4/0xc0

kernel: [  193.601083] Call Trace:
kernel: [  193.601093]  [<ffffffff81aecac3>] dump_stack+0x67/0x94
kernel: [  193.601102]  [<ffffffff815359b2>] print_trailer+0x112/0x1a0
kernel: [  193.601111]  [<ffffffff8153b5e4>] object_err+0x34/0x40
kernel: [  193.601119]  [<ffffffff8153d9d4>] kasan_report_error+0x224/0x530
kernel: [  193.601128]  [<ffffffff814a2c3d>] ? kzfree+0x2d/0x40
kernel: [  193.601137]  [<ffffffff81539d72>] ? kfree+0x1d2/0x1f0
kernel: [  193.601154]  [<ffffffff8157ca7e>] ? cdev_put+0x4e/0x50
kernel: [  193.601162]  [<ffffffff8157ca7e>] cdev_put+0x4e/0x50
kernel: [  193.601170]  [<ffffffff815767eb>] __fput+0x52b/0x6c0
kernel: [  193.601179]  [<ffffffff8117743a>] ? switch_task_namespaces+0x2a
kernel: [  193.601188]  [<ffffffff815769ee>] ____fput+0xe/0x10
kernel: [  193.601196]  [<ffffffff81170023>] task_work_run+0x133/0x1f0
kernel: [  193.601204]  [<ffffffff8117746e>] ? switch_task_namespaces+0x5e
kernel: [  193.601213]  [<ffffffff8111b50c>] do_exit+0x72c/0x2c20
kernel: [  193.601224]  [<ffffffff8111ade0>] ? release_task+0x1250/0x1250
-
-
-
kernel: [  193.601360]  [<ffffffff81003587>] ? exit_to_usermode_loop+0xe7
kernel: [  193.601368]  [<ffffffff810035c0>] exit_to_usermode_loop+0x120
kernel: [  193.601376]  [<ffffffff810061da>] syscall_return_slowpath+0x16a
kernel: [  193.601386]  [<ffffffff82848b33>] entry_SYSCALL_64_fastpath+0xa6

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Tested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media-device: dynamically allocate struct media_devnode
Mauro Carvalho Chehab [Wed, 27 Apr 2016 22:28:26 +0000 (19:28 -0300)] 
[media] media-device: dynamically allocate struct media_devnode

struct media_devnode is currently embedded at struct media_device.

While this works fine during normal usage, it leads to a race
condition during devnode unregister. the problem is that drivers
assume that, after calling media_device_unregister(), the struct
that contains media_device can be freed. This is not true, as it
can't be freed until userspace closes all opened /dev/media devnodes.

In other words, if the media devnode is still open, and media_device
gets freed, any call to an ioctl will make the core to try to access
struct media_device, with will cause an use-after-free and even GPF.

Fix this by dynamically allocating the struct media_devnode and only
freeing it when it is safe.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media-devnode: fix namespace mess
Mauro Carvalho Chehab [Wed, 23 Mar 2016 14:22:57 +0000 (11:22 -0300)] 
[media] media-devnode: fix namespace mess

Along all media controller code, "mdev" is used to represent
a pointer to struct media_device, and "devnode" for a pointer
to struct media_devnode.

However, inside media-devnode.[ch], "mdev" is used to represent
a pointer to struct media_devnode.

This is very confusing and may lead to development errors.

So, let's change all occurrences at media-devnode.[ch] to
also use "devnode" for such pointers.

This patch doesn't make any functional changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years agoUpdate my main e-mails at the Kernel tree
Mauro Carvalho Chehab [Tue, 14 Jun 2016 17:48:50 +0000 (14:48 -0300)] 
Update my main e-mails at the Kernel tree

For the third time in three years, I'm changing my e-mail at
Samsung. That's bad, as it may stop communications with me for
a while. So, this time, I'll also the mchehab@kernel.org e-mail,
as it remains stable since ever.

Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] m88rs2000: initialize status to zero
Colin Ian King [Tue, 10 May 2016 05:40:22 +0000 (02:40 -0300)] 
[media] m88rs2000: initialize status to zero

status is not initialized so it can contain garbage. The
check for status containing the FE_HAS_LOCK bit may randomly pass
or fail if the read of register 0x8c fails to set status after 25
read attempts.  Fix this by initializing status to 0.

Issue found with CoverityScan, CID#986738

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] em28xx-i2c: rt_mutex_trylock() returns zero on failure
Dan Carpenter [Mon, 9 May 2016 08:22:55 +0000 (05:22 -0300)] 
[media] em28xx-i2c: rt_mutex_trylock() returns zero on failure

The code is checking for negative returns but it should be checking for
zero.

Fixes: aab3125c43d8 ('[media] em28xx: add support for registering multiple i2c buses')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] mt2063: use lib gcd
Zhaoxiu Zeng [Wed, 27 Apr 2016 07:07:08 +0000 (04:07 -0300)] 
[media] mt2063: use lib gcd

This patch removes the local MT2063_gcd function, uses lib gcd instead

Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] rtl2832: add support for slave ts pid filter
Martin Blumenstingl [Tue, 7 Jun 2016 21:31:47 +0000 (18:31 -0300)] 
[media] rtl2832: add support for slave ts pid filter

The rtl2832 demod has 2 sets of PID filters. This patch enables
the filter support when using a slave demod.

Signed-off-by: Benjamin Larsson <benjamin@southpole.se>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] af9035: fix logging
Antti Palosaari [Wed, 1 Jun 2016 11:25:05 +0000 (08:25 -0300)] 
[media] af9035: fix logging

Remove __func__ and KBUILD_MODNAME from logging formatters and pass
USB interface device instead, so logging can be done correctly.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] af9035: fix for MXL5007T devices with I2C read issues
Alessandro Radicati [Thu, 12 May 2016 10:47:12 +0000 (07:47 -0300)] 
[media] af9035: fix for MXL5007T devices with I2C read issues

The MXL5007T tuner will lock-up on some devices after an I2C read
transaction.  This patch works around this issue by inhibiting such
operations and emulating a 0x00 response. The workaround is only
applied to USB devices known to exhibit this flaw.

Signed-off-by: Alessandro Radicati <alessandro@radicati.net>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] af9035: I2C combined write + read transaction fix
Alessandro Radicati [Tue, 5 Apr 2016 22:23:43 +0000 (19:23 -0300)] 
[media] af9035: I2C combined write + read transaction fix

This patch will modify the af9035 driver to use the register address
fields of the I2C read command for the combined write/read transaction
case.  Without this change, the firmware issues just a I2C read
transaction without the preceding write transaction to select the
register.

Signed-off-by: Alessandro Radicati <alessandro@radicati.net>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] of: reserved_mem: restore old behavior when no region is defined
Marek Szyprowski [Wed, 8 Jun 2016 06:51:53 +0000 (03:51 -0300)] 
[media] of: reserved_mem: restore old behavior when no region is defined

Change return value back to -ENODEV when no region is defined for given
device. This restores old behavior of this function, as some drivers rely
on such error code.

Fixes: 59ce4039727ef40 ("of: reserved_mem: add support for using more than
       one region for given device")

Reported-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Sumit Semwal <sumit.semwal@linaro.org>
8 years ago[media] drivers/media/dvb-core/en50221: move code to dvb_ca_private_free()
Max Kellermann [Mon, 21 Mar 2016 13:30:17 +0000 (10:30 -0300)] 
[media] drivers/media/dvb-core/en50221: move code to dvb_ca_private_free()

Prepare for postponing the call until all file handles have been
closed.

[mchehab@osg.samsung.com: make checkpatch happy]
Signed-off-by: Max Kellermann <max@duempel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] ds3000: return error if invalid symbol rate is set
Olli Salonen [Wed, 16 Mar 2016 11:04:51 +0000 (08:04 -0300)] 
[media] ds3000: return error if invalid symbol rate is set

Return -EINVAL if ds3000_set_frontend is called with invalid parameters.

v1 of the patch series got incorrect subject lines.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] fix semicolon.cocci warnings
Fengguang Wu [Tue, 7 Jun 2016 15:26:01 +0000 (12:26 -0300)] 
[media] fix semicolon.cocci warnings

drivers/media/dvb-frontends/helene.c:750:2-3: Unneeded semicolon

 Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

CC: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] rtl28xxu: sort the config symbols which are auto-selected
Martin Blumenstingl [Sun, 22 May 2016 16:12:07 +0000 (13:12 -0300)] 
[media] rtl28xxu: sort the config symbols which are auto-selected

No functional changes.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] rtl28xxu: auto-select more DVB-frontends and tuners
Martin Blumenstingl [Sun, 22 May 2016 16:12:06 +0000 (13:12 -0300)] 
[media] rtl28xxu: auto-select more DVB-frontends and tuners

This adds the missing auto-select bits for DVB-frontends and tuners
(if MEDIA_SUBDRV_AUTOSELECT is enabled) which are used by the various
rtl28xxu devices.
The driver itself probes for three more tuners, but it's not actually
using any of them:
- MEDIA_TUNER_MT2063
- MEDIA_TUNER_MT2266
- MEDIA_TUNER_MXL5007T

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] mn88472: move out of staging to media
Antti Palosaari [Sat, 14 May 2016 05:08:15 +0000 (08:08 +0300)] 
[media] mn88472: move out of staging to media

Move mn88472 DVB-T/T2/C demod driver out of staging to media.

v2: Fix build error reported by kbuild test robot:
drivers/staging/media/mn88472/Makefile: No such file or directory

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] mn88472: finalize driver
Antti Palosaari [Fri, 13 May 2016 15:19:19 +0000 (12:19 -0300)] 
[media] mn88472: finalize driver

Finalize driver in order to move out of staging.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] mn88472: fix typo
Julia Lawall [Tue, 17 May 2016 14:38:42 +0000 (11:38 -0300)] 
[media] mn88472: fix typo

firmare -> firmware

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] rtl28xxu: increase failed I2C msg repeat count to 3
Antti Palosaari [Fri, 13 May 2016 15:08:45 +0000 (12:08 -0300)] 
[media] rtl28xxu: increase failed I2C msg repeat count to 3

1 and 2 wasn't enough for mn88472 chip on Astrometa device,
so increase it to 3.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] mn88473: fix typo
Julia Lawall [Tue, 17 May 2016 14:38:41 +0000 (11:38 -0300)] 
[media] mn88473: fix typo

firmare -> firmware

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] mn88473: fix error path on probe()
Antti Palosaari [Sat, 14 May 2016 05:29:21 +0000 (02:29 -0300)] 
[media] mn88473: fix error path on probe()

Latest, 3rd, regmap instance should be freed on error case.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] staging/media: remove deprecated timb driver
Hans Verkuil [Thu, 2 Jun 2016 07:10:58 +0000 (04:10 -0300)] 
[media] staging/media: remove deprecated timb driver

Remove this deprecated old driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Richard Röjfors <richard@puffinpack.se>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] staging/media: remove deprecated omap1 driver
Hans Verkuil [Thu, 2 Jun 2016 07:09:32 +0000 (04:09 -0300)] 
[media] staging/media: remove deprecated omap1 driver

Remove this deprecated old driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] staging/media: remove deprecated mx3 driver
Hans Verkuil [Thu, 2 Jun 2016 07:07:49 +0000 (04:07 -0300)] 
[media] staging/media: remove deprecated mx3 driver

Remove this deprecated old driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] staging/media: remove deprecated mx2 driver
Hans Verkuil [Thu, 2 Jun 2016 07:03:47 +0000 (04:03 -0300)] 
[media] staging/media: remove deprecated mx2 driver

Remove this deprecated old driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] s5p-mfc: fix a typo in s5p_mfc_dec
ayaka [Sat, 7 May 2016 05:05:26 +0000 (02:05 -0300)] 
[media] s5p-mfc: fix a typo in s5p_mfc_dec

It is a cosmetic commit.

Signed-off-by: ayaka <ayaka@soulik.info>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] s5p-mfc: remove unnecessary check in try_fmt
ayaka [Sat, 7 May 2016 05:05:25 +0000 (02:05 -0300)] 
[media] s5p-mfc: remove unnecessary check in try_fmt

We don't need to request the sizeimage or num_planes
in try_fmt.

Signed-off-by: ayaka <ayaka@soulik.info>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] s5p-mfc: Add handling of buffer freeing reqbufs request
ayaka [Sat, 7 May 2016 05:05:24 +0000 (02:05 -0300)] 
[media] s5p-mfc: Add handling of buffer freeing reqbufs request

The encoder forget the work to call hardware to release its buffers.
This patch came from chromium project. I just change its code
style and make the API match with new kernel.

Signed-off-by: ayaka <ayaka@soulik.info>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years agoMAINTAINERS: Add Sony Helene TV tuner entry
Abylay Ospan [Tue, 7 Jun 2016 15:33:57 +0000 (11:33 -0400)] 
MAINTAINERS: Add Sony Helene TV tuner entry

I'm maintainer for Sony Helene tuner (drivers/media/dvb-frontends/helene.*)

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] helene: fix a warning when printing sizeof()
Mauro Carvalho Chehab [Tue, 7 Jun 2016 15:18:40 +0000 (12:18 -0300)] 
[media] helene: fix a warning when printing sizeof()

drivers/media/dvb-frontends/helene.c: In function 'helene_write_regs':
drivers/media/dvb-frontends/helene.c:312:5: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'unsigned int' [-Wformat=]
     "wr reg=%04x: len=%d vs %lu is too big!\n",
     ^

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] fix typo in SONY demodulator description
Abylay Ospan [Mon, 16 May 2016 14:57:04 +0000 (11:57 -0300)] 
[media] fix typo in SONY demodulator description

correct is CXD2841ER and CXD2854ER
incorrect was CXD2441ER and CXD2454ER

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] Change frontend allocation strategy for NetUP Universal DVB cards
Abylay Ospan [Sat, 14 May 2016 03:08:40 +0000 (00:08 -0300)] 
[media] Change frontend allocation strategy for NetUP Universal DVB cards

Old behaviour:
frontend0 - DVB-S/S2
frontend1 - DVB-T/T2
frontend2 - DVB-C
frontend3 - ISDB-T

New behaviour (DVBv5 API compliant):
frontend0 - DVB-S/S2
frontend1 - DVB-T/T2/C/ISDB-T

DTV standard should be selected by DTV_DELIVERY_SYSTEM call.

And DVB-C default bandwidth now 8MHz

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] support DVB-T2 for SONY CXD2841/54
Abylay Ospan [Mon, 16 May 2016 14:43:25 +0000 (11:43 -0300)] 
[media] support DVB-T2 for SONY CXD2841/54

bandwidth 1.7,5,6,7,8Mhz support for DVB-T2

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] fix DVB-S/S2 tuning
Abylay Ospan [Thu, 12 May 2016 03:02:04 +0000 (00:02 -0300)] 
[media] fix DVB-S/S2 tuning

Fixed HELENE tuner frequency calculation

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] ISDB-T retune and offset fix and DVB-C bw fix
Mauro Carvalho Chehab [Wed, 4 May 2016 21:25:38 +0000 (18:25 -0300)] 
[media] ISDB-T retune and offset fix and DVB-C bw fix

now when new tuning parameters specified demod should retune.
Also ISDB-T frequency offset calculation added
(cxd2841er_get_carrier_offset_i).

While here, fix re-tune for DVB-C Annex A, using the desired
bandwidth, instead of using 8MHz.

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] Fix DVB-T frequency offset calculation
Abylay Ospan [Wed, 20 Apr 2016 17:02:58 +0000 (14:02 -0300)] 
[media] Fix DVB-T frequency offset calculation

Fix offset calculation inside cxd2841er_get_carrier_offset_t
Now DVB-T should be tuned correctly

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] Sanity check when initializing DVB-S/S2 demodulator
Abylay Ospan [Tue, 5 Apr 2016 18:02:37 +0000 (15:02 -0300)] 
[media] Sanity check when initializing DVB-S/S2 demodulator

Avoid error message:
cxd2841er_read_status_s(): invalid state 1
Always force demod to shutdown state before initializing

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] Add carrier offset calculation for DVB-T
Abylay Ospan [Sun, 3 Apr 2016 02:31:50 +0000 (23:31 -0300)] 
[media] Add carrier offset calculation for DVB-T

Adding cxd2841er_get_carrier_offset_t to calculate DVB-T offset
for Sony demodulators CXD2841ER and CXD2854ER

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] MAINTAINERS: Add a maintainer for netup_unidvb, cxd2841er, horus3a, ascot2e
Abylay Ospan [Sat, 2 Apr 2016 03:00:58 +0000 (00:00 -0300)] 
[media] MAINTAINERS: Add a maintainer for netup_unidvb, cxd2841er, horus3a, ascot2e

I'm second maintainer for netup_unidvb, cxd2841er, horus3a, ascot2e

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] Fix CAM module memory read/write
Abylay Ospan [Fri, 1 Apr 2016 21:00:53 +0000 (18:00 -0300)] 
[media] Fix CAM module memory read/write

mistakenly membase8_io used instead of membase8_config
in this case we can't read/write CAM module memory (TUPLES)

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] New hw revision 1.4 of NetUP Universal DVB card added
Abylay Ospan [Thu, 24 Mar 2016 01:34:07 +0000 (22:34 -0300)] 
[media] New hw revision 1.4 of NetUP Universal DVB card added

New hardware revision of NetUP Universal DVB card (rev 1.4):
* changed tuners (CXD2861ER and CXD2832AER) to CXD2858ER
* changed demodulator (CXD2841ER) to CXD2854ER

card now supports:
DVB-S/S2, DVB-T/T2, DVB-C/C2, ISDB-T

PCI id's assigned for new hardware revision is:
1b55:18f7

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] Fix DVB-S/S2 tune for sony ascot3a tuner
Abylay Ospan [Thu, 24 Mar 2016 01:31:55 +0000 (22:31 -0300)] 
[media] Fix DVB-S/S2 tune for sony ascot3a tuner

* fix buffer length check
* do not rely on ROLLOFF

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] Add support Sony CXD2854ER demodulator
Abylay Ospan [Tue, 22 Mar 2016 22:20:34 +0000 (19:20 -0300)] 
[media] Add support Sony CXD2854ER demodulator

CXD2854ER is identical to CXD2841ER except ISDB-T/S added.
New method 'cxd2841er_attach_i' is added
xtal frequency now configurable. Available options:
20.5MHz, 24MHz, 41MHz

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] Add support Sony HELENE Sat/Ter Tuner
Abylay Ospan [Tue, 22 Mar 2016 01:19:12 +0000 (22:19 -0300)] 
[media] Add support Sony HELENE Sat/Ter Tuner

This is Sony HELENE DVB-S/S2 DVB-T/T2 DVB-C/C2 ISDB-T/S tuner
driver (CXD2858ER).

Tuner is used on NetUP Dual Universal DVB CI card (hardware revision 1.4).
Use 'helene_attach_s' to attach tuner in 'satellite mode'.
Use 'helene_attach' for 'terrestrial mode'.

Satellite delivery systems supported:
 DVB-S/S2, ISDB-S

Terrestrial delivery systems supported:
 DVB-T/T2, ISDB-T

Cable delivery systems supported:
 DVB-C/C2

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] uvcvideo: Correct speed testing
Oliver Neukum [Mon, 2 May 2016 11:23:21 +0000 (08:23 -0300)] 
[media] uvcvideo: Correct speed testing

Allow for SS+ USB devices.

Signed-off-by: Oliver Neukum <ONeukum@suse.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] uvcvideo: Fix bytesperline calculation for planar YUV
Nicolas Dufresne [Thu, 7 Jan 2016 20:43:48 +0000 (18:43 -0200)] 
[media] uvcvideo: Fix bytesperline calculation for planar YUV

The formula used to calculate bytesperline only works for packed format.
So far, all planar format we support have their bytesperline equal to
the image width (stride of the Y plane or a line of Y for M420).

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] dt-bindings: Add a binding for Mediatek Video Processor
Andrew-CT Chen [Tue, 3 May 2016 10:11:20 +0000 (07:11 -0300)] 
[media] dt-bindings: Add a binding for Mediatek Video Processor

Add a DT binding documentation of Video Processor Unit for the
MT8173 SoC from Mediatek.

Signed-off-by: Andrew-CT Chen <andrew-ct.chen@mediatek.com>
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] s5p-mfc: don't close instance after free OUTPUT buffers
ayaka [Fri, 6 May 2016 22:11:22 +0000 (19:11 -0300)] 
[media] s5p-mfc: don't close instance after free OUTPUT buffers

User-space applications can use the VIDIOC_REQBUFS ioctl to determine if a
memory mapped, user pointer or DMABUF based I/O is supported by the driver.

So a set of VIDIOC_REQBUFS ioctl calls will be made with count 0 and then
the real VIDIOC_REQBUFS call with count == n. But for count 0, the driver
not only frees the buffer but also closes the MFC instance and s5p_mfc_ctx
state is set to MFCINST_FREE.

The VIDIOC_REQBUFS handler for the output device checks if the s5p_mfc_ctx
state is set to MFCINST_INIT (which happens on an VIDIOC_S_FMT) and fails
otherwise. So after a VIDIOC_REQBUFS(n), future VIDIOC_REQBUFS(n) calls
will fails unless a VIDIOC_S_FMT ioctl calls happens before the reqbufs.

But applications may first set the format and then attempt to determine
the I/O methods supported by the driver (for example Gstramer does it) so
the state won't be set to MFCINST_INIT again and VIDIOC_REQBUFS will fail.

To avoid this issue, only free the buffers on VIDIOC_REQBUFS(0) but don't
close the MFC instance to allow future VIDIOC_REQBUFS(n) calls to succeed.

[javier: Rewrote changelog to explain the problem more detailed]

Signed-off-by: ayaka <ayaka@soulik.info>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Nicolas Dufresne <nicolas@collabora.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] s5p-mfc: Don't try to put pm->clock if lookup failed
Javier Martinez Canillas [Mon, 2 May 2016 19:14:22 +0000 (16:14 -0300)] 
[media] s5p-mfc: Don't try to put pm->clock if lookup failed

Failing to get the struct s5p_mfc_pm .clock is a non-fatal error so the
clock field can have a errno pointer value. But s5p_mfc_final_pm() only
checks if .clock is not NULL before attempting to unprepare and put it.

This leads to the following warning in clk_put() due s5p_mfc_final_pm():

WARNING: CPU: 3 PID: 1023 at drivers/clk/clk.c:2814 s5p_mfc_final_pm+0x48/0x74 [s5p_mfc]
CPU: 3 PID: 1023 Comm: rmmod Tainted: G        W       4.6.0-rc6-next-20160502-00005-g5a15a49106bc #9
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[<c010e1bc>] (unwind_backtrace) from [<c010af28>] (show_stack+0x10/0x14)
[<c010af28>] (show_stack) from [<c032485c>] (dump_stack+0x88/0x9c)
[<c032485c>] (dump_stack) from [<c011b8e8>] (__warn+0xe8/0x100)
[<c011b8e8>] (__warn) from [<c011b9b0>] (warn_slowpath_null+0x20/0x28)
[<c011b9b0>] (warn_slowpath_null) from [<bf16004c>] (s5p_mfc_final_pm+0x48/0x74 [s5p_mfc])
[<bf16004c>] (s5p_mfc_final_pm [s5p_mfc]) from [<bf157414>] (s5p_mfc_remove+0x8c/0x94 [s5p_mfc])
[<bf157414>] (s5p_mfc_remove [s5p_mfc]) from [<c03fe1f8>] (platform_drv_remove+0x24/0x3c)
[<c03fe1f8>] (platform_drv_remove) from [<c03fcc70>] (__device_release_driver+0x84/0x110)
[<c03fcc70>] (__device_release_driver) from [<c03fcdd8>] (driver_detach+0xac/0xb0)
[<c03fcdd8>] (driver_detach) from [<c03fbff8>] (bus_remove_driver+0x4c/0xa0)
[<c03fbff8>] (bus_remove_driver) from [<c01886a8>] (SyS_delete_module+0x174/0x1b8)
[<c01886a8>] (SyS_delete_module) from [<c01078c0>] (ret_fast_syscall+0x0/0x3c)

Assign the pointer to NULL in case of a lookup failure to fix the issue.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] media: s5p-mfc: fix compilation issue on archs other than ARM (32bit)
Marek Szyprowski [Tue, 7 Jun 2016 11:32:16 +0000 (08:32 -0300)] 
[media] media: s5p-mfc: fix compilation issue on archs other than ARM (32bit)

This patch fixes build break caused by lack of dma-iommu API on ARM64
(this API is specific to ARM 32bit architecture).

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
8 years agoMerge branch 'for-v4.8/media/exynos-mfc' of git://linuxtv.org/snawrocki/samsung into...
Mauro Carvalho Chehab [Tue, 7 Jun 2016 13:21:12 +0000 (10:21 -0300)] 
Merge branch 'for-v4.8/media/exynos-mfc' of git://linuxtv.org/snawrocki/samsung into patchwork

* 'for-v4.8/media/exynos-mfc' of git://linuxtv.org/snawrocki/samsung:
  media: s5p-mfc: add iommu support
  media: s5p-mfc: replace custom reserved memory handling code with generic one
  media: s5p-mfc: use generic reserved memory bindings
  of: reserved_mem: add support for using more than one region for given device
  media: set proper max seg size for devices on Exynos SoCs
  media: vb2-dma-contig: add helper for setting dma max seg size
  s5p-mfc: Fix race between s5p_mfc_probe() and s5p_mfc_open()
  s5p-mfc: Add release callback for memory region devs
  s5p-mfc: Set device name for reserved memory region devs

8 years agomedia: s5p-mfc: add iommu support
Marek Szyprowski [Tue, 24 May 2016 13:31:27 +0000 (15:31 +0200)] 
media: s5p-mfc: add iommu support

This patch adds support for IOMMU to s5p-mfc device driver. MFC firmware
is limited and it cannot use the default configuration. If IOMMU is
available, the patch disables the default DMA address space
configuration and creates a new address space of size limited to 256M
and base address set to 0x20000000.

For now the same address space is shared by both 'left' and 'right'
memory channels, because the DMA/IOMMU frameworks do not support
configuring them separately. This is not optimal, but besides limiting
total address space available has no other drawbacks (MFC firmware
supports 256M of address space per each channel).

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
8 years agomedia: s5p-mfc: replace custom reserved memory handling code with generic one
Marek Szyprowski [Tue, 24 May 2016 13:31:26 +0000 (15:31 +0200)] 
media: s5p-mfc: replace custom reserved memory handling code with generic one

This patch removes custom code for initialization and handling of
reserved memory regions in s5p-mfc driver and replaces it with generic
reserved memory regions api.

s5p-mfc driver now handles two reserved memory regions defined by
generic reserved memory bindings. Support for non-dt platform has been
removed, because all supported platforms have been already converted to
device tree.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
8 years agomedia: s5p-mfc: use generic reserved memory bindings
Marek Szyprowski [Tue, 24 May 2016 13:31:25 +0000 (15:31 +0200)] 
media: s5p-mfc: use generic reserved memory bindings

Use generic reserved memory bindings and mark old, custom properties
as obsoleted.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
8 years agoof: reserved_mem: add support for using more than one region for given device
Marek Szyprowski [Tue, 24 May 2016 13:31:24 +0000 (15:31 +0200)] 
of: reserved_mem: add support for using more than one region for given device

This patch allows device drivers to initialize more than one reserved
memory region assigned to given device. When driver needs to use more
than one reserved memory region, it should allocate child devices and
initialize regions by index for each of its child devices.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
8 years agomedia: set proper max seg size for devices on Exynos SoCs
Marek Szyprowski [Tue, 24 May 2016 07:16:07 +0000 (09:16 +0200)] 
media: set proper max seg size for devices on Exynos SoCs

All multimedia devices found on Exynos SoCs support only contiguous
buffers, so set DMA max segment size to DMA_BIT_MASK(32) to let memory
allocator to correctly create contiguous memory mappings.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
8 years agomedia: vb2-dma-contig: add helper for setting dma max seg size
Marek Szyprowski [Tue, 24 May 2016 07:16:06 +0000 (09:16 +0200)] 
media: vb2-dma-contig: add helper for setting dma max seg size

Add a helper function for device drivers to set DMA's max_seg_size.
Setting it to largest possible value lets DMA-mapping API always create
contiguous mappings in DMA address space. This is essential for all
devices, which use dma-contig videobuf2 memory allocator and shared
buffers.

Till now, the only case when vb2-dma-contig really 'worked' was a case
where userspace provided USERPTR buffer, which was in fact mmaped
contiguous buffer from the other v4l2/drm device. Also DMABUF made of
contiguous buffer worked only when its exporter did not split it into
several chunks in the scatter-list. Any other buffer failed, regardless
of the arch/platform used and the presence of the IOMMU of the device bus.

This patch provides interface to fix this issue.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
This page took 0.071977 seconds and 5 git commands to generate.