On 04/30, Boris Brezillon wrote:
Clock rates are stored in an unsigned long field, but -round_rate()
(which returns a rounded rate from a requested one) returns a long
value (errors are reported using negative error codes), which can lead
to long overflow if the clock rate exceed 2Ghz.
On Thu, May 07, 2015 at 01:00:52PM +0530, Sumit Semwal wrote:
Add reference counting on a kernel module that exports dma-buf and
implements its operations. This prevents the module from being unloaded
while DMABUF file is in use.
The original patch [1] was submitted by Tomasz, but he's since
Even though the rcar-vin driver tells userspace that it will give a monotonic
timestamp, it is actually using gettimeofday. Replace this with a proper
monotonic timestamp.
diff --git a/drivers/media/platform/soc_camera/rcar_vin.c
b/drivers/media/platform/soc_camera/rcar_vin.c
index
Add reference counting on a kernel module that exports dma-buf and
implements its operations. This prevents the module from being unloaded
while DMABUF file is in use.
The original patch [1] was submitted by Tomasz, but he's since shifted
jobs and a ping didn't elicit any response.
[tomasz:
Hi Stephen,
On Wed, 6 May 2015 23:39:53 -0700
Stephen Boyd sb...@codeaurora.org wrote:
On 04/30, Boris Brezillon wrote:
Clock rates are stored in an unsigned long field, but -round_rate()
(which returns a rounded rate from a requested one) returns a long
value (errors are reported using
On 05/07/2015 08:22 AM, Hans Verkuil wrote:
V4L2 drivers should use MONOTONIC timestamps instead of gettimeofday, which is
affected by daylight savings time.
Signed-off-by: Hans Verkuil hans.verk...@cisco.com
diff --git a/drivers/media/pci/sta2x11/sta2x11_vip.c
On 05/07/2015 08:26 AM, Hans Verkuil wrote:
Even though the rcar-vin driver tells userspace that it will give a monotonic
timestamp, it is actually using gettimeofday. Replace this with a proper
monotonic timestamp.
It was clearly too early in the day for me, but here is my Signed-off-by:
Added Federico to the CC-list.
On 05/07/2015 08:22 AM, Hans Verkuil wrote:
V4L2 drivers should use MONOTONIC timestamps instead of gettimeofday, which is
affected by daylight savings time.
diff --git a/drivers/media/pci/sta2x11/sta2x11_vip.c
b/drivers/media/pci/sta2x11/sta2x11_vip.c
index
V4L2 drivers should use MONOTONIC timestamps instead of gettimeofday, which is
affected by daylight savings time.
diff --git a/drivers/media/pci/sta2x11/sta2x11_vip.c
b/drivers/media/pci/sta2x11/sta2x11_vip.c
index d384a6b..59b3a36 100644
--- a/drivers/media/pci/sta2x11/sta2x11_vip.c
+++
Moikka!
I didn't make any tests, but I could guess that error flag is set by
firmware when some unsupported / invalid parameter is given as a
firmware command request.
Anyhow, I am not sure which is proper error code to return. Could you
please study, check from API docs and so, which are
On Thu, May 07, 2015 at 06:58:44PM +0530, Sumit Semwal wrote:
Add reference counting on a kernel module that exports dma-buf and
implements its operations. This prevents the module from being unloaded
while DMABUF file is in use.
The original patch [1] was submitted by Tomasz Stanislawski,
Hi Antti,
I basically used the same code that was used earlier in the same
function in case i2c_master_send/recv returns an unexpected result.
When working with the RTL2832P based Si2168 device I noticed that at
some point, often but not always during firmware loading, the Si2168
started to
Instead of relying on media subtype, use the new macros to detect
if an entity is a subdev or an A/V DMA entity.
Please note that most drivers assume that there's just AV_DMA or
V4L2 subdevs. This is not true anymore, as we've added MC support
for DVB, and there are plans to add support for ALSA
On omap3/omap4/davinci drivers, MEDIA_ENT_T_V4L2_SUBDEV macro is
abused in order to simplify the pad checks.
Basically, it does a logical or of this macro, in order to check
for a local index and if the entity is either a subdev or not.
As we'll get rid of MEDIA_ENT_T_V4L2_SUBDEV macro, replace
As explained before, the hole idea of subtypes at entities was
not nice. All V4L2 subdevs may have a device node associated.
Also, the hole idea is to expose hardware IP blocks, so calling
them as V4L2 is a very bad practice, as they were not designed
for the V4L2 API. It is just the reverse.
Finally, let's rename the tuner entity. inside the media subsystem,
a tuner can be used by AM/FM radio, SDR radio, analog TV and digital TV.
It could even be used on other subsystems, like network, for wireless
devices.
So, it is not constricted to V4L2 API, or to a subdev.
Let's then rename it
This sensor driver is abusing MEDIA_ENT_T_V4L2_SUBDEV, creating
some subdevs with a non-existing type.
As this is a sensor driver, the proper type is likely
MEDIA_ENT_T_CAM_SENSOR.
Signed-off-by: Mauro Carvalho Chehab mche...@osg.samsung.com
diff --git a/drivers/media/i2c/s5k5baf.c
The Media Controller DVB support is still an experimental feature,
as it is under heavy development. It is already said that it is
an experimental feature at the help, but let make it even clearer
and louder, as we may need to adjust some bits when we start using it
on embedded drivers.
This sensor driver is abusing MEDIA_ENT_T_V4L2_SUBDEV, creating
some subdevs with a non-existing type.
As this is a sensor driver, the proper type is likely
MEDIA_ENT_T_CAM_SENSOR.
Signed-off-by: Mauro Carvalho Chehab mche...@osg.samsung.com
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c
Better document the linux/media.h UAPI header, by adding
comments to each entity subtype.
Signed-off-by: Mauro Carvalho Chehab mche...@osg.samsung.com
diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h
index 6acc4be1378c..8d47b70b7ea8 100644
--- a/include/uapi/linux/media.h
+++
This driver is abusing MEDIA_ENT_T_V4L2_SUBDEV, as it uses a
hack to check if the remote entity is a subdev. Get rid of it.
Signed-off-by: Mauro Carvalho Chehab mche...@osg.samsung.com
diff --git a/drivers/staging/media/omap4iss/iss_ipipe.c
b/drivers/staging/media/omap4iss/iss_ipipe.c
index
As we'll be removing entity subtypes from the Kernel, we need
to provide a way for drivers and core to check if a given
entity is represented by a V4L2 subdev or if it is an A/V
DMA.
Signed-off-by: Mauro Carvalho Chehab mche...@osg.samsung.com
diff --git a/include/media/media-entity.h
Olli, what kernel version/v4l-dvb are you running? (I want to update the
wiki)
Steve, you can download Windows software from
http://www.dvbsky.net/Support_win.html. It looks like the device should
work with the driver+player.
Bestunar doesn't sound like something to worry about. Seems to be
This driver is abusing MEDIA_ENT_T_V4L2_SUBDEV:
- it uses a hack to check if the remote entity is a subdev;
- it still uses the legacy entity subtype check macro, that
will be removed soon.
Signed-off-by: Mauro Carvalho Chehab mche...@osg.samsung.com
diff --git
The media controller entity subtype doesn't make much sense,
especially since V4L2 subdevices may also have associated devnodes.
So, better to get rid of it while it is not too late.
We need, of course, to keep the old symbols to avoid userspace
breakage, but we should avoid using them
The media controller entity subtype doesn't make much sense,
especially since V4L2 subdevices may also have associated devnodes.
So, better to get rid of it while it is not too late.
Also, the entities namespace is a bit messy, putting tuners under V4L2,
while this kind of entity could also be
Don't use anymore the type/subtype entity data/macros
inside the Kernel.
Signed-off-by: Mauro Carvalho Chehab mche...@osg.samsung.com
diff --git a/include/media/media-entity.h b/include/media/media-entity.h
index f15b48145711..bb98506532ff 100644
--- a/include/media/media-entity.h
+++
Instead of abusing MEDIA_ENT_T_V4L2_SUBDEV, initialize
new subdev entities as MEDIA_ENT_T_UNKNOWN.
Signed-off-by: Mauro Carvalho Chehab mche...@osg.samsung.com
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c
b/drivers/media/v4l2-core/v4l2-subdev.c
index 66c6d9fd2033..0233d30b4922 100644
---
At the Video4Linux API, the /dev/video?, /dev/vbi? and
/dev/radio? device nodes are used for the chipset that
provides the bridge between video/radio streams and the
USB, PCI or CPU buses.
Such bridge is also typically used to control the V4L2 device
as a hole.
For video streaming devices and
Cleanup the media controller entities description:
- remove MEDIA_ENT_T_DEVNODE and MEDIA_ENT_T_V4L2_SUBDEV;
- improve the description of some entities;
- add MEDIA_ENT_T_UNKNOWN with a proper description.
Signed-off-by: Mauro Carvalho Chehab mche...@osg.samsung.com
diff --git
In order to reflect that the entities are actually the hardware
(or firmware, or in-kernel software), and are not associated
with the DVB API, let's remove DEVNODE_ from the entity names
and use DTV (Digital TV) for the entities.
The frontend is an special case: the frontend devnode actually
To keep coherency, let's also remove V4L2_SUBDEV from the analog
TV decoder, calling it by its function, and not by the V4L2
API mapping.
So,
MEDIA_ENT_T_V4L2_SUBDEV_DECODER - MEDIA_ENT_T_ATV_DECODER
Signed-off-by: Mauro Carvalho Chehab mche...@osg.samsung.com
diff --git
On Thursday 07 May 2015 08:27:20 Hans Verkuil wrote:
Added Federico to the CC-list.
Fine for me
Acked-by: Federico Vaga federico.v...@gmail.com
On 05/07/2015 08:22 AM, Hans Verkuil wrote:
V4L2 drivers should use MONOTONIC timestamps instead of gettimeofday,
which is affected by daylight
Hello Steve,
Could you try the following methods?
1 Could you try to install the media code from dvbsky.net?
http://www.dvbsky.net/download/linux/media_build-bst-150322.tar.gz
2 You can download the driver and software for windows from dvbsky.net and
test to confirm the device is working
This message is generated daily by a cron job that builds media_tree for
the kernels and architectures in the list below.
Results of the daily build of media_tree:
date: Fri May 8 04:00:15 CEST 2015
git branch: test
git hash: 1555f3bf5cc172e7d23c2b8db10d656d15bec13e
gcc
On Wed, May 06, 2015 at 03:15:32PM +0200, Daniel Vetter wrote:
On Wed, May 06, 2015 at 11:19:21AM +0200, Thierry Reding wrote:
On Wed, May 06, 2015 at 10:35:52AM +0200, Daniel Vetter wrote:
On Tue, May 05, 2015 at 05:54:05PM +0100, One Thousand Gnomes wrote:
First what is Secure Data
Add reference counting on a kernel module that exports dma-buf and
implements its operations. This prevents the module from being unloaded
while DMABUF file is in use.
The original patch [1] was submitted by Tomasz Stanislawski, but this
is a simpler way to do it.
v2: move owner to struct
Hi,
I am playing a bit with the coda encoder on i.MX6 and try to get the
most quality out of it. So, I am trying to use the controls of the
driver, in particular h264_i_frame_qp_value and h264_p_frame_qp_value.
I can get something with the following pipeline :
gst-launch-1.0 -evvv v4l2src
On Thu, May 07, 2015 at 03:22:20PM +0200, Thierry Reding wrote:
On Wed, May 06, 2015 at 03:15:32PM +0200, Daniel Vetter wrote:
Yes the idea would be a special-purpose allocater thing like ion. Might
even want that to be a syscall to do it properly.
Would you care to elaborate why a syscall
On Wed, May 06, 2015 at 07:29:56AM -0400, Rob Clark wrote:
On Wed, May 6, 2015 at 4:35 AM, Daniel Vetter dan...@ffwll.ch wrote:
On Tue, May 05, 2015 at 05:54:05PM +0100, One Thousand Gnomes wrote:
First what is Secure Data Path ? SDP is a set of hardware features to
garanty
that some
On Thu, 7 May 2015 15:52:12 +0200
Daniel Vetter dan...@ffwll.ch wrote:
On Thu, May 07, 2015 at 03:22:20PM +0200, Thierry Reding wrote:
On Wed, May 06, 2015 at 03:15:32PM +0200, Daniel Vetter wrote:
Yes the idea would be a special-purpose allocater thing like ion. Might
even want that to
On 7 May 2015 at 13:40, Greg KH gre...@linuxfoundation.org wrote:
On Thu, May 07, 2015 at 01:00:52PM +0530, Sumit Semwal wrote:
Add reference counting on a kernel module that exports dma-buf and
implements its operations. This prevents the module from being unloaded
while DMABUF file is in
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