Depth and payload is defined per memory plane. It's better to iterate using
number of memory planes. This was not causing much issue since the rest
of the arrays involved where intialized to zero.
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
If a struct contains 64-bit fields, it is aligned on 64-bit boundaries
within containing structs in 64-bit compilations. This is the case with
struct v4l2_window, which contains pointers and is embedded into struct
v4l2_format, and that one is embedded into struct v4l2_create_buffers.
Unlike some other structs, used as a part of the kernel ABI as ioctl()
arguments, that are packed, these structs aren't packed. This isn't a
problem per se, but the ioctl-compat code for VIDIOC_CREATE_BUFS contains
a bug, that triggers in such 64-bit builds. That code wrongly assumes,
that in struct v4l2_create_buffers, struct v4l2_format immediately follows
the __u32 memory field, which in fact isn't the case. This bug wasn't
visible until now, because until recently hardly any applications used
this ioctl() and mostly embedded 32-bit only drivers implemented it. This
is changing now with addition of this ioctl() to some USB drivers, e.g.
UVC. This patch fixes the bug by copying parts of struct
v4l2_create_buffers separately.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: stable@vger.kernel.org
Commit 75e2bdad89 "ov7670: allow
configuration of image size, clock speed, and I/O method" uses a wrong
index to iterate an array. Apart from being wrong, it also uses an
unchecked value from user-space, which can cause access to unmapped
memory in the kernel, triggered by a normal desktop user with rights to
use V4L2 devices.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
If a struct contains 64-bit fields, it is aligned on 64-bit boundaries
within containing structs in 64-bit compilations. This is the case with
struct v4l2_window, which contains pointers and is embedded into struct
v4l2_format, and that one is embedded into struct v4l2_create_buffers.
Unlike some other structs, used as a part of the kernel ABI as ioctl()
arguments, that are packed, these structs aren't packed. This isn't a
problem per se, but the ioctl-compat code for VIDIOC_CREATE_BUFS contains
a bug, that triggers in such 64-bit builds. That code wrongly assumes,
that in struct v4l2_create_buffers, struct v4l2_format immediately follows
the __u32 memory field, which in fact isn't the case. This bug wasn't
visible until now, because until recently hardly any applications used
this ioctl() and mostly embedded 32-bit only drivers implemented it. This
is changing now with addition of this ioctl() to some USB drivers, e.g.
UVC. This patch fixes the bug by copying parts of struct
v4l2_create_buffers separately.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Commit 75e2bdad89 "ov7670: allow
configuration of image size, clock speed, and I/O method" uses a wrong
index to iterate an array. Apart from being wrong, it also uses an
unchecked value from user-space, which can cause access to unmapped
memory in the kernel, triggered by a normal desktop user with rights to
use V4L2 devices.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
If the sub-device did not report any tvnorms, then disable the STD
ioctls.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
When the sub-device is registered, increment the use count of the sub-device
owner only if it's different from the owner of the driver for the media
device. This avoids increasing the use count by the module itself and thus
making it possible to unload it when it's not in use.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
mdev->fops->owner is actually the owner of the very same module which
implements media_device_register(), so it can't be unloaded anyway. Instead,
use THIS_MODULE through a macro as does video_register_device().
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
VIDIOC_SUBDEV_[GS]_FRAME_INTERVAL IOCTLs argument structs contain the pad
field but the validity check was missing. There should be no implications
security-wise from this since no driver currently uses the pad field in the
struct.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This is already available from saa7134_dev.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Don't calculate this for every buffer, store it globally instead.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This will make the next patch a bit easier to read.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
saa7134-alsa used low-level videobuf functions to allocate and sync
DMA buffers. Replace this with saa7134-specific code. These functions
will not be available when we convert to vb2.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Just white space and coding style changes to reduce the noise in the
following patches.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This solves this bug:
https://bugzilla.kernel.org/show_bug.cgi?id=73361
The problem is that when you quit tvtime it calls STREAMOFF, but then it queues a
bunch of buffers for no good reason before closing the file descriptor.
In the past closing the fd would free the vb queue since that was part of the file
handle struct. Since that was moved to the global struct that no longer happened.
This wouldn't be a problem, but the extra QBUF calls that tvtime does meant that
the buffer list in videobuf (q->stream) contained buffers, so REQBUFS would fail
with -EBUSY.
The solution is to init the list head explicitly when releasing the file
descriptor and to not free the video resource when calling streamoff.
The real fix will hopefully go into kernel 3.16 when the vb2 conversion is
merged. Basically the saa7134 driver with the old videobuf is so full of holes it
ain't funny anymore, so consider this a band-aid for kernels 3.14 and 15.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org # for v3.14 and up
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The register address, width and flags are encoded as a 32-bit value. Add
macros for obtaining these separately. Use the macros in register access
functions.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add a quirk for diverting registers for on some sensors, even the standard
registers are not where they can be expected to be found. Add a quirk to
to help using such sensors.
smiapp_write_no_quirk() and smiapp_read_no_quirk() functions are provided
for the use of quirk implementations.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This is more flexible. Quirk flags may be affected by configuration.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
No reason to keep this u8, really.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
It doesn't make sense to just copy the information to the PLL flags. Add a
new fields for the quirks to contain the PLL flags.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The sub-device names should be unique. Should two identical sensors be
present in the same media device they would be indistinguishable. The names
will change e.g. from "vs6555 pixel array" to "vs6555 1-0010 pixel array".
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
8-bit reads are needed in some cases; however the condition used was wrong.
Regular access (register width) was used if:
len == SMIAPP_REG_8BIT && !only8
This causes 8-bit read access to be used always. The operator should be ||
instead: regular access can be used for 8-bit reads OR if allowed otherwise.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
SMIAPP_REG_ is the common prefix used in the driver for register related
definitions. Use it consistently.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The quirk registers mechanism which allows register to have a static read
access value from the sensor specific quirks, is not used. Remove it. It is
to be replaced by a more generic register diversion quirk soon.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
When compiling this for older kernels using the compatibility build
the compiler complains about uninitialized variables:
In file included from include/linux/kernel.h:20:0,
from include/linux/cache.h:4,
from include/linux/time.h:7,
from include/linux/input.h:13,
from /home/hans/work/build/media_build/v4l/compat.h:9,
from <command-line>:0:
/home/hans/work/build/media_build/v4l/videobuf2-core.c: In function 'vb2_mmap':
include/linux/dynamic_debug.h:60:9: warning: 'plane' may be used uninitialized in this function [-Wmaybe-uninitialized]
printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \
^
/home/hans/work/build/media_build/v4l/videobuf2-core.c:2381:23: note: 'plane' was declared here
unsigned int buffer, plane;
^
In file included from include/linux/kernel.h:20:0,
from include/linux/cache.h:4,
from include/linux/time.h:7,
from include/linux/input.h:13,
from /home/hans/work/build/media_build/v4l/compat.h:9,
from <command-line>:0:
include/linux/dynamic_debug.h:60:9: warning: 'buffer' may be used uninitialized in this function [-Wmaybe-uninitialized]
printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \
^
/home/hans/work/build/media_build/v4l/videobuf2-core.c:2381:15: note: 'buffer' was declared here
unsigned int buffer, plane;
^
While these warnings are bogus (the call to __find_plane_by_offset will
set buffer and plane), it doesn't hurt to initialize these variables.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The stop_streaming op is only called if streaming is in progress,
so drop the unnecessary 'if (!vb2_is_streaming(vq))' check.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The vb2 core ignores any return code from the stop_streaming op.
And there really isn't anything it can do anyway in case of an error.
So change the return type to void and update any drivers that implement it.
The int return gave drivers the idea that this operation could actually
fail, but that's really not the case.
The pwc amd sdr-msi3101 drivers both had this construction:
if (mutex_lock_interruptible(&s->v4l2_lock))
return -ERESTARTSYS;
This has been updated to just call mutex_lock(). The stop_streaming op
expects this to really stop streaming and I very much doubt this will
work reliably if stop_streaming just returns without really stopping the
DMA.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Warnings due to __le16 / u16 conversions.
Replace offending struct and so stay on cpu domain.
Signed-off-by: Robert Butora <robert.butora.fi@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
External LNA between antenna connector and RF tuner is controlled
by EM28178 GPIO 0. GPIO value 1 is LNA active and value 0 is LNA
disabled.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
bit3 was not cleared always leaving driver reporting demod is not
fully locked. Do not check bit0 as it seems to be always 0.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
DVB-C uses lower frequencies than DVB-T. Extend frequency range down to
110 MHz in order to support DVB-C. 110 - 862 MHz range is defined by
NorDig Unified 2.2 specification.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Silicon Labs Si2157 silicon tuner driver.
Currently it supports only DVB-T.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
With the new vb2_thread_start/stop core code it is very easy to implement
videobuf2-dvb. This should simplify converting existing videobuf drivers to
vb2.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
In order to implement vb2 DVB support you need to be able to start
a kernel thread that queues and dequeues buffers, calling a callback
function for every buffer. This patch adds support for that.
It's based on drivers/media/v4l2-core/videobuf-dvb.c, but with all the DVB
specific stuff stripped out, thus making it much more generic.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The kernel debug messages produced by vb2 started either with a
lower or an upper case character. Switched all to use lower-case
which seemed to be what was used in the majority of the messages.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
It was impossible to read() or write() a frame if the queue type was multiplanar.
Even if the current format is single planar. Change this to just check whether
the number of planes is 1 or more.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Added a vb2_fileio_is_active inline function that returns true if fileio
is in progress. Check for this too in mmap() (you don't want apps mmap()ing
buffers used by fileio) and expbuf() (same reason).
In addition drivers should be able to check for this in queue_setup() to
return an error if an attempt is made to read() or write() with
V4L2_FIELD_ALTERNATE being configured. This is illegal (there is no way
to pass the TOP/BOTTOM information around using file I/O).
However, in order to be able to check for this the init_fileio function
needs to set q->fileio early on, before the buffers are allocated. So switch
to using internal functions (__reqbufs, vb2_internal_qbuf and
vb2_internal_streamon) to skip the fileio check. Well, that's why the internal
functions were created...
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
q->start_streaming_called is always true, so the WARN_ON check against
it being false can be dropped.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This is not allowed by the spec and does in fact not make any sense.
Return -EINVAL if this is the case.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
When using write() to write data to an output video node the vb2 core
should set timestamps if V4L2_BUF_FLAG_TIMESTAMP_COPY is set. Nobody
else is able to provide this information with the write() operation.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
__qbuf_mmap was sort of hidden in between the much larger __qbuf_userptr
and __qbuf_dmabuf functions. Move it before __qbuf_userptr which is
also conform the usual order these memory models are implemented: first
mmap, then userptr, then dmabuf.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Many dprintk's in vb2 use a hardcoded prefix with the function name. In
many cases that is now outdated. To keep things consistent the dprintk
macro has been changed to print the function name in addition to the "vb2:"
prefix. Superfluous prefixes elsewhere in the code have been removed.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The application should really always fill in bytesused for output
buffers, unfortunately the vb2 framework never checked for that.
So for single planar formats replace a bytesused of 0 by the length
of the buffer, and for multiplanar format do the same if bytesused is
0 for ALL planes.
This seems to be what the user really intended if v4l2_buffer was
just memset to 0.
I'm afraid that just checking for this and returning an error would
break too many applications. Quite a few drivers never check for bytesused
at all and just use the buffer length instead.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The videobuf2-core did not zero the 'planes' array in __qbuf_userptr()
and __qbuf_dmabuf(). That's now memset to 0. Without this the reserved
array in struct v4l2_plane would be non-zero, causing v4l2-compliance
errors.
More serious is the fact that data_offset was not handled correctly:
- for capture devices it was never zeroed, which meant that it was
uninitialized. Unless the driver sets it it was a completely random
number. With the memset above this is now fixed.
- __qbuf_dmabuf had a completely incorrect length check that included
data_offset.
- in __fill_vb2_buffer in the DMABUF case the data_offset field was
unconditionally copied from v4l2_buffer to v4l2_plane when this
should only happen in the output case.
- in the single-planar case data_offset was never correctly set to 0.
The single-planar API doesn't support data_offset, so setting it
to 0 is the right thing to do. This too is now solved by the memset.
All these issues were found with v4l2-compliance.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add the new CEA-861-F and DMT 4K timings to the list of predefined
timings.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This patch migrates the vpfe driver to use v4l2_fh for
priority handling.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This patch migrates the vpbe driver to use v4l2_fh for
priority handling. This also fixes v4l2-compliance test.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This patch adds support for the PCI-8604PW card equipped with four 878A.
It is unknown who the manufacturer of this card is and no drivers were
available during development of the patch. According to images found
online, the card is originally sold with Linux DVR software.
A CPLD on the card prevents the 878A from requesting access to the
bus until an initialization sequence has been issued via GPIOs. The
implemented sequence uses the minimum number of GPIOs needed to
successfully unlock bus access. As there are many more GPIOs connected
to the CPLD, it is very likely that some of the others have an influence
on the bus arbitration scheduling. This should be investigated further
in case of performance issues.
The tested card contains an EEPROM on one of the 878A, but it is
completely empty (i.e. contains only 0xff), so it is not possible
to detect the card.
Signed-off-by: Daniel Glöckner <daniel-gl@gmx.net>
Tested-by: Robert Longbottom <rongblor@googlemail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
In core_init make sure access to EDID DDC lines are disabled
before chip is powered up. Also DISABLE_AUTO_EDID before power up.
The correct setting is applied later when setting the EDID.
Some sources (MAC) kept on reading EDID even when Hotplug was low
and in the short period in core_init before the DDC lines was enabled
read a corrupt EDID.
Signed-off-by: Martin Bugge <marbugge@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This was the reason for enabling the HDMI/DVI-D mode irq in the first place.
Signed-off-by: Martin Bugge <marbugge@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Fix the use of __user in the check_array_args() prototype: instead of
using 'void * __user *' you should use 'void __user **' for sparse to
understand this correctly.
This also required the use of __force in the '*kernel_ptr = user_ptr'
assignment.
Also replace a wrong cast (void *) with the correct one (void **)
in check_array_args().
This fixes these sparse warnings:
drivers/media/v4l2-core/v4l2-ioctl.c:2284:35: warning: incorrect type in assignment (different address spaces)
drivers/media/v4l2-core/v4l2-ioctl.c:2301:35: warning: incorrect type in assignment (different address spaces)
drivers/media/v4l2-core/v4l2-ioctl.c:2319:35: warning: incorrect type in assignment (different address spaces)
drivers/media/v4l2-core/v4l2-ioctl.c:2386:57: warning: incorrect type in argument 4 (different address spaces)
drivers/media/v4l2-core/v4l2-ioctl.c:2420:29: warning: incorrect type in assignment (different address spaces)
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Sparse generated a bunch of errors like this:
drivers/media/v4l2-core/videobuf2-core.c:2045:25: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:136:17: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:151:17: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:168:25: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:183:17: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:185:9: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:385:25: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1115:17: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1268:33: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1270:25: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1315:17: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1324:25: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1396:25: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1457:17: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1482:17: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1484:9: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1523:17: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1525:17: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1815:17: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1828:17: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1914:25: error: incompatible types in conditional expression (different base types)
drivers/media/v4l2-core/videobuf2-core.c:1944:9: error: incompatible types in conditional expression (different base types)
These are caused by the call*op defines which do something like this:
(ops->op) ? ops->op(args) : 0
which is OK as long as op is not a void function, because in that case one part
of the conditional expression returns void, the other an integer. Hence the sparse
errors.
I've replaced this by introducing three variants of the call_ macros:
call_*op for int returns, call_void_*op for void returns and call_ptr_*op for
pointer returns.
That's the bad news. The good news is that the fail_*op macros could be removed
since the call_*op macros now have enough information to determine if the op
succeeded or not and can increment the op counter only on success. This at least
makes it more robust w.r.t. future changes.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
There was some frequency calculation overflows which caused tuning
failure on 32-bit architecture. Use 64-bit numbers where needed in
order to avoid calculation overflows.
Thanks for the Finnish person, who asked remain anonymous, reporting,
testing and suggesting the fix.
Cc: <stable@vger.kernel.org>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
VIDEO_TIMBERDALE selects TIMB_DMA which itself depends on
MFD_TIMBERDALE, so VIDEO_TIMBERDALE should either select or depend on
MFD_TIMBERDALE as well. I chose to make it depend on it because I
think it makes more sense and it is consistent with what other options
are doing.
Adding a "|| HAS_IOMEM" to the TIMB_DMA dependencies silenced the
kconfig warning about unmet direct dependencies but it was wrong:
without MFD_TIMBERDALE, TIMB_DMA is useless as the driver has no
device to bind to.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This patch does not modify existing drivers. It adds subdriver
to gspca for DTCS033 (Scopium) webcam for astrophotography.
The patch adds dtcs033.c and modifies Kconfig and Makefile.
Signed-off-by: Robert Butora <robert.butora.fi@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The sn9c102 driver is deprecated. It was moved to staging in
anticipation of its removal in a future kernel version. However, USB
devices 0C45:6024 and 0C45:6025 are still handled by sn9c102 when
both sn9c102 and gspca_sonixb are enabled.
We must migrate all the users of these devices to the gspca_sonixb
driver now, so that it gets sufficient testing before the sn9c102
driver is finally phased out.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
from commit-id: b3379c6201
"vb2: only call start_streaming if sufficient buffers are queued"
the vb2 framework warns on (WARN_ON()) if all the active buffers
are not released when streaming is stopped, initially the vb2 silently
released the buffer internally if the buffer was not released by
the driver.
This patch fixes following issue:
WARNING: CPU: 0 PID: 2049 at drivers/media/v4l2-core/videobuf2-core.c:2011 __vb2_queue_cancel+0x1a0/0x218()
Modules linked in:
CPU: 0 PID: 2049 Comm: vpbe_display Tainted: G W 3.14.0-rc5-00414-ged97a6f #89
[<c000e3f0>] (unwind_backtrace) from [<c000c618>] (show_stack+0x10/0x14)
[<c000c618>] (show_stack) from [<c001adb0>] (warn_slowpath_common+0x68/0x88)
[<c001adb0>] (warn_slowpath_common) from [<c001adec>] (warn_slowpath_null+0x1c/0x24)
[<c001adec>] (warn_slowpath_null) from [<c0252e0c>] (__vb2_queue_cancel+0x1a0/0x218)
[<c0252e0c>] (__vb2_queue_cancel) from [<c02533a4>] (vb2_queue_release+0x14/0x24)
[<c02533a4>] (vb2_queue_release) from [<c025a65c>] (vpbe_display_release+0x60/0x230)
[<c025a65c>] (vpbe_display_release) from [<c023fe5c>] (v4l2_release+0x34/0x74)
[<c023fe5c>] (v4l2_release) from [<c00b4a00>] (__fput+0x80/0x224)
[<c00b4a00>] (__fput) from [<c00341e8>] (task_work_run+0xa0/0xd0)
[<c00341e8>] (task_work_run) from [<c001cc28>] (do_exit+0x244/0x918)
[<c001cc28>] (do_exit) from [<c001d344>] (do_group_exit+0x48/0xdc)
[<c001d344>] (do_group_exit) from [<c0029894>] (get_signal_to_deliver+0x2a0/0x5bc)
[<c0029894>] (get_signal_to_deliver) from [<c000b888>] (do_signal+0x78/0x3a0)
[<c000b888>] (do_signal) from [<c000bc54>] (do_work_pending+0xa4/0xb4)
[<c000bc54>] (do_work_pending) from [<c00096dc>] (work_pending+0xc/0x20)
---[ end trace 5faa75e8c2f8a6a1 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2049 at drivers/media/v4l2-core/videobuf2-core.c:1095 vb2_buffer_done+0x1e0/0x224()
Modules linked in:
CPU: 0 PID: 2049 Comm: vpbe_display Tainted: G W 3.14.0-rc5-00414-ged97a6f #89
[<c000e3f0>] (unwind_backtrace) from [<c000c618>] (show_stack+0x10/0x14)
[<c000c618>] (show_stack) from [<c001adb0>] (warn_slowpath_common+0x68/0x88)
[<c001adb0>] (warn_slowpath_common) from [<c001adec>] (warn_slowpath_null+0x1c/0x24)
[<c001adec>] (warn_slowpath_null) from [<c0252c28>] (vb2_buffer_done+0x1e0/0x224)
[<c0252c28>] (vb2_buffer_done) from [<c0252e3c>] (__vb2_queue_cancel+0x1d0/0x218)
[<c0252e3c>] (__vb2_queue_cancel) from [<c02533a4>] (vb2_queue_release+0x14/0x24)
[<c02533a4>] (vb2_queue_release) from [<c025a65c>] (vpbe_display_release+0x60/0x230)
[<c025a65c>] (vpbe_display_release) from [<c023fe5c>] (v4l2_release+0x34/0x74)
[<c023fe5c>] (v4l2_release) from [<c00b4a00>] (__fput+0x80/0x224)
[<c00b4a00>] (__fput) from [<c00341e8>] (task_work_run+0xa0/0xd0)
[<c00341e8>] (task_work_run) from [<c001cc28>] (do_exit+0x244/0x918)
[<c001cc28>] (do_exit) from [<c001d344>] (do_group_exit+0x48/0xdc)
[<c001d344>] (do_group_exit) from [<c0029894>] (get_signal_to_deliver+0x2a0/0x5bc)
[<c0029894>] (get_signal_to_deliver) from [<c000b888>] (do_signal+0x78/0x3a0)
[<c000b888>] (do_signal) from [<c000bc54>] (do_work_pending+0xa4/0xb4)
[<c000bc54>] (do_work_pending) from [<c00096dc>] (work_pending+0xc/0x20)
---[ end trace 5faa75e8c2f8a6a2 ]---
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
from commit-id: b3379c6201
"vb2: only call start_streaming if sufficient buffers are queued"
the vb2 framework warns on (WARN_ON()) if all the active buffers
are not released when streaming is stopped, initially the vb2 silently
released the buffer internally if the buffer was not released by
the driver.
Also this patch moves the disabling of interrupts from relase() callback
to stop_streaming() callback as which needs to be done ideally.
This patch fixes following issue:
WARNING: CPU: 0 PID: 2049 at drivers/media/v4l2-core/videobuf2-core.c:2011 __vb2_queue_cancel+0x1a0/0x218()
Modules linked in:
CPU: 0 PID: 2049 Comm: vpif_display Tainted: G W 3.14.0-rc5-00414-ged97a6f #89
[<c000e3f0>] (unwind_backtrace) from [<c000c618>] (show_stack+0x10/0x14)
[<c000c618>] (show_stack) from [<c001adb0>] (warn_slowpath_common+0x68/0x88)
[<c001adb0>] (warn_slowpath_common) from [<c001adec>] (warn_slowpath_null+0x1c/0x24)
[<c001adec>] (warn_slowpath_null) from [<c0252e0c>] (__vb2_queue_cancel+0x1a0/0x218)
[<c0252e0c>] (__vb2_queue_cancel) from [<c02533a4>] (vb2_queue_release+0x14/0x24)
[<c02533a4>] (vb2_queue_release) from [<c025a65c>] (vpif_release+0x60/0x230)
[<c025a65c>] (vpif_release) from [<c023fe5c>] (v4l2_release+0x34/0x74)
[<c023fe5c>] (v4l2_release) from [<c00b4a00>] (__fput+0x80/0x224)
[<c00b4a00>] (__fput) from [<c00341e8>] (task_work_run+0xa0/0xd0)
[<c00341e8>] (task_work_run) from [<c001cc28>] (do_exit+0x244/0x918)
[<c001cc28>] (do_exit) from [<c001d344>] (do_group_exit+0x48/0xdc)
[<c001d344>] (do_group_exit) from [<c0029894>] (get_signal_to_deliver+0x2a0/0x5bc)
[<c0029894>] (get_signal_to_deliver) from [<c000b888>] (do_signal+0x78/0x3a0)
[<c000b888>] (do_signal) from [<c000bc54>] (do_work_pending+0xa4/0xb4)
[<c000bc54>] (do_work_pending) from [<c00096dc>] (work_pending+0xc/0x20)
---[ end trace 5faa75e8c2f8a6a1 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2049 at drivers/media/v4l2-core/videobuf2-core.c:1095 vb2_buffer_done+0x1e0/0x224()
Modules linked in:
CPU: 0 PID: 2049 Comm: vpif_display Tainted: G W 3.14.0-rc5-00414-ged97a6f #89
[<c000e3f0>] (unwind_backtrace) from [<c000c618>] (show_stack+0x10/0x14)
[<c000c618>] (show_stack) from [<c001adb0>] (warn_slowpath_common+0x68/0x88)
[<c001adb0>] (warn_slowpath_common) from [<c001adec>] (warn_slowpath_null+0x1c/0x24)
[<c001adec>] (warn_slowpath_null) from [<c0252c28>] (vb2_buffer_done+0x1e0/0x224)
[<c0252c28>] (vb2_buffer_done) from [<c0252e3c>] (__vb2_queue_cancel+0x1d0/0x218)
[<c0252e3c>] (__vb2_queue_cancel) from [<c02533a4>] (vb2_queue_release+0x14/0x24)
[<c02533a4>] (vb2_queue_release) from [<c025a65c>] (vpif_release+0x60/0x230)
[<c025a65c>] (vpif_release) from [<c023fe5c>] (v4l2_release+0x34/0x74)
[<c023fe5c>] (v4l2_release) from [<c00b4a00>] (__fput+0x80/0x224)
[<c00b4a00>] (__fput) from [<c00341e8>] (task_work_run+0xa0/0xd0)
[<c00341e8>] (task_work_run) from [<c001cc28>] (do_exit+0x244/0x918)
[<c001cc28>] (do_exit) from [<c001d344>] (do_group_exit+0x48/0xdc)
[<c001d344>] (do_group_exit) from [<c0029894>] (get_signal_to_deliver+0x2a0/0x5bc)
[<c0029894>] (get_signal_to_deliver) from [<c000b888>] (do_signal+0x78/0x3a0)
[<c000b888>] (do_signal) from [<c000bc54>] (do_work_pending+0xa4/0xb4)
[<c000bc54>] (do_work_pending) from [<c00096dc>] (work_pending+0xc/0x20)
---[ end trace 5faa75e8c2f8a6a2 ]---
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
from commit-id: b3379c6201
"vb2: only call start_streaming if sufficient buffers are queued"
the vb2 framework warns on (WARN_ON()) if all the active buffers
are not released when streaming is stopped, initially the vb2 silently
released the buffer internally if the buffer was not released by
the driver.
Also this patch moves the disabling of interrupts from relase() callback
to stop_streaming() callback as which needs to be done ideally.
This patch fixes following issue:
WARNING: CPU: 0 PID: 2049 at drivers/media/v4l2-core/videobuf2-core.c:2011 __vb2_queue_cancel+0x1a0/0x218()
Modules linked in:
CPU: 0 PID: 2049 Comm: vpif_capture Tainted: G W 3.14.0-rc5-00414-ged97a6f #89
[<c000e3f0>] (unwind_backtrace) from [<c000c618>] (show_stack+0x10/0x14)
[<c000c618>] (show_stack) from [<c001adb0>] (warn_slowpath_common+0x68/0x88)
[<c001adb0>] (warn_slowpath_common) from [<c001adec>] (warn_slowpath_null+0x1c/0x24)
[<c001adec>] (warn_slowpath_null) from [<c0252e0c>] (__vb2_queue_cancel+0x1a0/0x218)
[<c0252e0c>] (__vb2_queue_cancel) from [<c02533a4>] (vb2_queue_release+0x14/0x24)
[<c02533a4>] (vb2_queue_release) from [<c025a65c>] (vpif_release+0x60/0x230)
[<c025a65c>] (vpif_release) from [<c023fe5c>] (v4l2_release+0x34/0x74)
[<c023fe5c>] (v4l2_release) from [<c00b4a00>] (__fput+0x80/0x224)
[<c00b4a00>] (__fput) from [<c00341e8>] (task_work_run+0xa0/0xd0)
[<c00341e8>] (task_work_run) from [<c001cc28>] (do_exit+0x244/0x918)
[<c001cc28>] (do_exit) from [<c001d344>] (do_group_exit+0x48/0xdc)
[<c001d344>] (do_group_exit) from [<c0029894>] (get_signal_to_deliver+0x2a0/0x5bc)
[<c0029894>] (get_signal_to_deliver) from [<c000b888>] (do_signal+0x78/0x3a0)
[<c000b888>] (do_signal) from [<c000bc54>] (do_work_pending+0xa4/0xb4)
[<c000bc54>] (do_work_pending) from [<c00096dc>] (work_pending+0xc/0x20)
---[ end trace 5faa75e8c2f8a6a1 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2049 at drivers/media/v4l2-core/videobuf2-core.c:1095 vb2_buffer_done+0x1e0/0x224()
Modules linked in:
CPU: 0 PID: 2049 Comm: vpif_capture Tainted: G W 3.14.0-rc5-00414-ged97a6f #89
[<c000e3f0>] (unwind_backtrace) from [<c000c618>] (show_stack+0x10/0x14)
[<c000c618>] (show_stack) from [<c001adb0>] (warn_slowpath_common+0x68/0x88)
[<c001adb0>] (warn_slowpath_common) from [<c001adec>] (warn_slowpath_null+0x1c/0x24)
[<c001adec>] (warn_slowpath_null) from [<c0252c28>] (vb2_buffer_done+0x1e0/0x224)
[<c0252c28>] (vb2_buffer_done) from [<c0252e3c>] (__vb2_queue_cancel+0x1d0/0x218)
[<c0252e3c>] (__vb2_queue_cancel) from [<c02533a4>] (vb2_queue_release+0x14/0x24)
[<c02533a4>] (vb2_queue_release) from [<c025a65c>] (vpif_release+0x60/0x230)
[<c025a65c>] (vpif_release) from [<c023fe5c>] (v4l2_release+0x34/0x74)
[<c023fe5c>] (v4l2_release) from [<c00b4a00>] (__fput+0x80/0x224)
[<c00b4a00>] (__fput) from [<c00341e8>] (task_work_run+0xa0/0xd0)
[<c00341e8>] (task_work_run) from [<c001cc28>] (do_exit+0x244/0x918)
[<c001cc28>] (do_exit) from [<c001d344>] (do_group_exit+0x48/0xdc)
[<c001d344>] (do_group_exit) from [<c0029894>] (get_signal_to_deliver+0x2a0/0x5bc)
[<c0029894>] (get_signal_to_deliver) from [<c000b888>] (do_signal+0x78/0x3a0)
[<c000b888>] (do_signal) from [<c000bc54>] (do_work_pending+0xa4/0xb4)
[<c000bc54>] (do_work_pending) from [<c00096dc>] (work_pending+0xc/0x20)
---[ end trace 5faa75e8c2f8a6a2 ]---
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
All YUV 422 has 16bit per pixels.
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This fixes following build error:
CC drivers/media/i2c/s5c73m3/s5c73m3-core.o
CC drivers/md/dm-ioctl.o
CC net/ipv4/inet_lro.o
drivers/media/i2c/s5c73m3/s5c73m3-core.c: In function ‘s5c73m3_get_platform_data’:
drivers/media/i2c/s5c73m3/s5c73m3-core.c:1619:2: error: implicit declaration of function ‘v4l2_of_get_next_endpoint’ [-Werror=implicit-function-declaration]
drivers/media/i2c/s5c73m3/s5c73m3-core.c:1619:10: warning: assignment makes pointer from integer without a cast [enabled by default]
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
It printed a little bit too heavy looking error log "DVB: Unable to
find symbol rtl2832_sdr_attach()" when staging module was disabled.
Silence that error by introducing own version of dvb_attach() macro
without the error logging.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
RTL2832 SDR extension module is currently on staging. SDR module
headers were included from staging causing direct dependency staging
directory. As a solution, add needed headers to main driver.
Motivation of that change comes from Luis / driver backports project.
Reported-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Cc: backports@vger.kernel.org
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
As reported by Coverity, there's a potential risk of a division
by zero on some calls to jpeg_set_qual(), if quality is zero.
As quality can't be 0 or lower than that, adds an extra clause
to cover this special case.
Coverity reports: CID#11922280, CID#11922293, CID#11922295
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The dequed CAPTURE_MPLANE type buffers don't contain the flags that the
originally queued OUTPUT_MPLANE type buffers have. This breaks compliance.
Copy the source v4l2_buffer flags to the destination v4l2_buffer flags before
they are dequed.
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The vpe driver wasn't setting the correct field parameter for dequed CAPTURE
type buffers for the case where the captured output is progressive.
Set the field to V4L2_FIELD_NONE for the completed destination buffers when
the captured output is progressive.
For OUTPUT type buffers, a queued buffer's field is forced to V4L2_FIELD_NONE
if the pixel format(configured through s_fmt for the buffer type
V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE specifies) the field type isn't interlaced.
If the pixel format specified was V4L2_FIELD_ALTERNATE, and the queued buffer's
field isn't V4L2_FIELD_TOP or V4L2_FIELD_BOTTOM, the vb2 buf_prepare op returns
an error.
This ensures compliance, and that the dequeued output and captured buffers
contain the field type that the driver used internally.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Zero out the reserved formats in v4l2_pix_format_mplane and
v4l2_plane_pix_format members of the returned v4l2_format pointer when passed
through TRY_FMT ioctl.
This ensures that the user doesn't interpret the non-zero fields as some data
passed by the driver, and ensures compliance.
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The vpe output and capture queues are initially configured to default values in
vpe_open(). A G_FMT before any S_FMTs will result in these values being
populated.
The colorspace and bytesperline parameter of this initial configuration are
incorrect. This breaks compliance when as we get 'TRY_FMT(G_FMT) != G_FMT'.
Fix the initial queue configuration such that it wouldn't need to be fixed by
try_fmt.
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The bus_info parameter in v4l2_capabilities expects a 'platform_' prefix. This
wasn't done in the driver and hence was breaking compliance. Update the bus_info
parameter accordingly.
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
querycap currently returns V4L2_CAP_VIDEO_M2M as a capability, this should be
V4L2_CAP_VIDEO_M2M_MPLANE instead, as the driver supports multiplanar formats.
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The minimum width and height for VPE input/output was kept as 128 pixels. VPE
doesn't have a constraint on the image height, it requires the image width to
be at least 16 bytes.
Change the minimum supported dimensions to 32x32. This allows us to de-interlace
qcif content. A smaller image size than 32x32 didn't make much sense, so stopped
at this.
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The video_device struct is currently embedded in the driver data struct vpe_dev.
A vpe_dev instance is allocated by the driver, and the memory for the vfd is a
part of this struct.
The v4l2 core, however, manages the removal of the vfd region, through the
video_device's .release() op, which currently is the helper
video_device_release. This causes memory corruption, and leads to issues when
we try to re-insert the vpe module.
Use the video_device_release_empty helper function instead.
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
VPE has a ctrl parameter which decides how many mem to mem transactions the
active job from the job queue can perform.
The driver's job_ready() made sure that the number of ready source buffers are
sufficient for the job to execute successfully. But it didn't make sure if
there are sufficient ready destination buffers in the capture queue for the
VPE output.
If the time taken by VPE to process a single frame is really slow, then it's
possible that we don't need to imply such a restriction on the dst queue, but
really fast transactions(small resolution, no de-interlacing) may cause us to
hit the condition where we don't have any free buffers for the VPE to write on.
Add the extra check in job_ready() to make sure we have the sufficient amount
of destination buffers.
Acked-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add sleep ops to lgdt3304_ops to invoke lgdt3305_sleep() to be called
from dvb_frontend_suspend(). lgdt3305_soft_reset() is called for both
3304 and 3305 devices. soft_reset and sleep touch LGDT3305_GEN_CTRL_3
on 3304 and 3305 devices. Hence, adding sleep to lgdt3304_ops will help
suspend 3304 properly from dvb_frontend_suspend().
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The Kconfig entry for "Micronas DRX-J demodulator" defaults to modular
if DVB_FE_CUSTOMISE is set. But that Kconfig symbol was replaced with
MEDIA_SUBDRV_AUTOSELECT as of v3.7. So use the new symbol. And negate
the logic, because MEDIA_SUBDRV_AUTOSELECT's logic is the opposite of
the former logic.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
fix the following warnings:
m88rs2000.c:300:16: warning: symbol 'm88rs2000_setup' was not declared. Should it be static?
m88rs2000.c:318:16: warning: symbol 'm88rs2000_shutdown' was not declared. Should it be static?
m88rs2000.c:328:16: warning: symbol 'fe_reset' was not declared. Should it be static?
m88rs2000.c:366:16: warning: symbol 'fe_trigger' was not declared. Should it be static?
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Correct the initialization values at the start of the function
and use proper variable sizes to prevent overflow.
Signed-off-by: Benjamin Larsson <benjamin@southpole.se>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The generic scancode filtering has questionable value and makes it
impossible to determine from userspace if there is an actual
scancode hw filter present or not.
So revert the generic parts.
Based on a patch from James Hogan <james.hogan@imgtec.com>, but this
version also makes sure that only the valid sysfs files are created
in the first place.
Signed-off-by: David Härdeman <david@hardeman.nu>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Overloading dev->s_filter to do two different functions (set wakeup filters
and generic hardware filters) makes it impossible to tell what the
hardware actually supports, so create a separate dev->s_wakeup_filter and
make the distinction explicit.
Signed-off-by: David Härdeman <david@hardeman.nu>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This reverts 18bc174481 and changes
the code at img-ir-nec.c to use the order used by the other NEC decoders.
The original patch ignored the fact that NEC32 scancodes are generated not
only in the NEC raw decoder but also directly in some drivers. Whichever
approach is chosen it should be consistent across drivers and this patch
needs more discussion.
Furthermore, I'm convinced that we have to stop playing games trying to
decipher the "meaning" of NEC scancodes (what's the customer/vendor/address,
which byte is the MSB, etc).
Signed-off-by: David Härdeman <david@hardeman.nu>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Coverity CID 1196501: Missing break in switch (MISSING_BREAK)
I introduced that bug recently by commit
96a5b3a869.
As a result, it will flood unintentionally error message to log.
Reported-by: <scan-admin@coverity.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Pull exynos media updates from Mauro Carvalho Chehab:
"These are the remaining patches I have for the merge windows. It
basically adds a new sensor and adds the needed DT bits for it to
work"
* 'topic/exynos' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] s5p-fimc: Remove reference to outdated macro
[media] s5p-jpeg: Fix broken indentation in jpeg-regs.h
[media] exynos4-is: Add the FIMC-IS ISP capture DMA driver
[media] exynos4-is: Add support for asynchronous subdevices registration
[media] exynos4-is: Add clock provider for the SCLK_CAM clock outputs
[media] exynos4-is: Use external s5k6a3 sensor driver
[media] V4L: s5c73m3: Add device tree support
[media] V4L: Add driver for s5k6a3 image sensor
[media] Documentation: devicetree: Update Samsung FIMC DT binding
[media] Documentation: dt: Add binding documentation for S5C73M3 camera
[media] Documentation: dt: Add binding documentation for S5K6A3 image sensor
Pull media updates from Mauro Carvalho Chehab:
"The main set of series of patches for media subsystem, including:
- document RC sysfs class
- added an API to setup scancode to allow waking up systems using the
Remote Controller
- add API for SDR devices. Drivers are still on staging
- some API improvements for getting EDID data from media
inputs/outputs
- new DVB frontend driver for drx-j (ATSC)
- one driver (it913x/it9137) got removed, in favor of an improvement
on another driver (af9035)
- added a skeleton V4L2 PCI driver at documentation
- added a dual flash driver (lm3646)
- added a new IR driver (img-ir)
- added an IR scancode decoder for the Sharp protocol
- some improvements at the usbtv driver, to allow its core to be
reused.
- added a new SDR driver (rtl2832u_sdr)
- added a new tuner driver (msi001)
- several improvements at em28xx driver to fix PM support, device
removal and to split the V4L2 specific bits into a separate
sub-driver
- one driver got converted to videobuf2 (s2255drv)
- the e4000 tuner driver now follows an improved binding model
- some fixes at V4L2 compat32 code
- several fixes and enhancements at videobuf2 code
- some cleanups at V4L2 API documentation
- usual driver enhancements, new board additions and misc fixups"
[ NOTE! This merge effective drops commit 4329b93b28 ("of: Reduce
indentation in of_graph_get_next_endpoint").
The of_graph_get_next_endpoint() function was moved and renamed by
commit fd9fdb78a9 ("[media] of: move graph helpers from
drivers/media/v4l2-core to drivers/of"). It was originally called
v4l2_of_get_next_endpoint() and lived in the file
drivers/media/v4l2-core/v4l2-of.c.
In that original location, it was then fixed to support empty port
nodes by commit b9db140c1e ("[media] v4l: of: Support empty port
nodes"), and that commit clashes badly with the dropped "Reduce
intendation" commit. I had to choose one or the other, and decided
that the "Support empty port nodes" commit was more important ]
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (426 commits)
[media] em28xx-dvb: fix PCTV 461e tuner I2C binding
Revert "[media] em28xx-dvb: fix PCTV 461e tuner I2C binding"
[media] em28xx: fix PCTV 290e LNA oops
[media] em28xx-dvb: fix PCTV 461e tuner I2C binding
[media] m88ds3103: fix bug on .set_tone()
[media] saa7134: fix WARN_ON during resume
[media] v4l2-dv-timings: add module name, description, license
[media] videodev2.h: add parenthesis around macro arguments
[media] saa6752hs: depends on CRC32
[media] si4713: fix Kconfig dependencies
[media] Sensoray 2255 uses videobuf2
[media] adv7180: free an interrupt on failure paths in init_device()
[media] e4000: make VIDEO_V4L2 dependency optional
[media] af9033: Don't export functions for the hardware filter
[media] af9035: use af9033 PID filters
[media] af9033: implement PID filter
[media] rtl2832_sdr: do not use dynamic stack allocation
[media] e4000: fix 32-bit build error
[media] em28xx-audio: make sure audio is unmuted on open()
[media] DocBook media: v4l2_format_sdr was renamed to v4l2_sdr_format
...
Pull compat time conversion changes from Peter Anvin:
"Despite the branch name this is really neither an x86 nor an
x32-specific patchset, although it the implementation of the
discussions that followed the x32 security hole a few months ago.
This removes get/put_compat_timespec/val() and replaces them with
compat_get/put_timespec/val() which are savvy as to the current status
of COMPAT_USE_64BIT_TIME.
It removes several unused and/or incorrect/misleading functions (like
compat_put_timeval_convert which doesn't in fact do any conversion)
and also replaces several open-coded implementations what is now
called compat_convert_timespec() with that function"
* 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
compat: Fix sparse address space warnings
compat: Get rid of (get|put)_compat_time(val|spec)
Here's the huge drivers/staging/ update for 3.15-rc1.
Loads of cleanup fixes, a few drivers removed, and some new ones added.
All have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here's the huge drivers/staging/ update for 3.15-rc1.
Loads of cleanup fixes, a few drivers removed, and some new ones
added.
All have been in linux-next for a while"
* tag 'staging-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1375 commits)
staging: xillybus: XILLYBUS_PCIE depends on PCI_MSI
staging: xillybus: Added "select CRC32" for XILLYBUS in Kconfig
staging: comedi: poc: remove obsolete driver
staging: unisys: replace kzalloc/kfree with UISMALLOC/UISFREE
staging: octeon-usb: prevent memory corruption
staging: usbip: fix line over 80 characters
staging: usbip: fix quoted string split across lines
Staging: unisys: Remove RETINT macro
Staging: unisys: Remove FAIL macro
Staging: unisys: Remove RETVOID macro
Staging: unisys: Remove RETPTR macro
Staging: unisys: Remove RETBOOL macro
Staging: unisys: Remove FAIL_WPOSTCODE_1 macro
Staging: unisys: Cleanup macros to get rid of goto statements
Staging: unisys: include: Remove unused macros from timskmod.h
staging: dgap: fix the rest of the checkpatch warnings in dgap.c
Staging: bcm: Remove unnecessary parentheses
staging: wlags49_h2: Delete unnecessary braces
staging: wlags49_h2: Do not use assignment in if condition
staging: wlags49_h2: Enclose macro in a do-while loop
...
Here's the big driver core / sysfs update for 3.15-rc1.
Lots of kernfs updates to make it useful for other subsystems, and a few
other tiny driver core patches.
All have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and sysfs updates from Greg KH:
"Here's the big driver core / sysfs update for 3.15-rc1.
Lots of kernfs updates to make it useful for other subsystems, and a
few other tiny driver core patches.
All have been in linux-next for a while"
* tag 'driver-core-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (42 commits)
Revert "sysfs, driver-core: remove unused {sysfs|device}_schedule_callback_owner()"
kernfs: cache atomic_write_len in kernfs_open_file
numa: fix NULL pointer access and memory leak in unregister_one_node()
Revert "driver core: synchronize device shutdown"
kernfs: fix off by one error.
kernfs: remove duplicate dir.c at the top dir
x86: align x86 arch with generic CPU modalias handling
cpu: add generic support for CPU feature based module autoloading
sysfs: create bin_attributes under the requested group
driver core: unexport static function create_syslog_header
firmware: use power efficient workqueue for unloading and aborting fw load
firmware: give a protection when map page failed
firmware: google memconsole driver fixes
firmware: fix google/gsmi duplicate efivars_sysfs_init()
drivers/base: delete non-required instances of include <linux/init.h>
kernfs: fix kernfs_node_from_dentry()
ACPI / platform: drop redundant ACPI_HANDLE check
kernfs: fix hash calculation in kernfs_rename_ns()
kernfs: add CONFIG_KERNFS
sysfs, kobject: add sysfs wrapper for kernfs_enable_ns()
...
Add missing m88ts2022 module reference counts as removing that module
is not allowed when it is used by em28xx-dvb module. That same module
was not unregistered correctly, fix it too.
Error cases validated by returning errors from m88ds3103, m88ts2022
and a8293 probe().
Signed-off-by: Antti Palosaari <crope@iki.fi>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The first hunk of this patch got merged wrong, likely due to some
changes at the em28xx resume code. Revert it to reapply it right.
This reverts commit 37571b163c.
Reported-by: Chris Lee <updatelee@gmail.com>
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Cc: stable@vger.kernel.org # Don't apply this patch or 37571b163c
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Pointer to device state has been moved to different location during
some change. PCTV 290e LNA function still uses old pointer, carried
over FE priv, and it crash.
Reported-by: Janne Kujanpää <jikuja@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add missing m88ts2022 module reference counts as removing that module
is not allowed when it is used by em28xx-dvb module. That same module
was not unregistered correctly, fix it too.
Error cases validated by returning errors from m88ds3103, m88ts2022
and a8293 probe().
Signed-off-by: Antti Palosaari <crope@iki.fi>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Band switching didn't worked always reliably as there was one
register bit set wrong.
Thanks to Robert Schlabbach for pointing this bug and solution.
Reported-by: Robert Schlabbach <Robert.Schlabbach@gmx.net>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Do not attempt to reload the tuner modules when resuming after a suspend.
This triggers a WARN_ON in kernel/kmod.c:148 __request_module.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=69581.
This has always been wrong, but it was never noticed until the WARN_ON
was added in 3.9.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org # for v3.9 and up
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
I completely forgot to add them when I made this module. Loading this module
without it will taint the kernel, which is not intended.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org # for v3.12 and up
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The SI4713 select should be I2C_SI4713 and the USB driver needs to depend on
I2C as well.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Reported-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
commit 340a30c514 "s2255drv: upgrade to videobuf2" changed the API
used by the s2255 driver, but did not modify the Kconfig statement,
which can lead to build errors when no other driver already uses
VIDEOBUF2_VMALLOC. This patch does the necessary Kconfig change.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
There is request_irq() in init_device(), but the interrupt is not removed
on failure paths. The patch adds proper error handling.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
That tuner driver is mainly for DVB API, but there is some V4L2 API
controls for SDR usage. Make driver compile conditional so that V4L2
is not mandatory. Without the V4L2 support driver is build as a DVB
only, without SDR controls.
Fixes following errors reported by kbuild test robot:
ERROR: "v4l2_ctrl_auto_cluster" [drivers/media/tuners/e4000.ko] undefined!
ERROR: "v4l2_ctrl_new_std" [drivers/media/tuners/e4000.ko] undefined!
ERROR: "v4l2_ctrl_handler_init_class" [drivers/media/tuners/e4000.ko] undefined!
ERROR: "v4l2_ctrl_handler_free" [drivers/media/tuners/e4000.ko] undefined!
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Exporting functions for hardware filter is a bad idea, as it
breaks compilation if:
CONFIG_DVB_USB_AF9035=y
CONFIG_DVB_AF9033=m
Because the PID filter function calls would be hardcoded at
af9035.
The same doesn't happen with af9033_attach() because the
dvb_attach() doesn't hardcode it. Instead, it dynamically
links it at runtime.
However, calling dvb_attach() multiple times is problematic,
as it increments module kref.
So, the better is to pass one parameter for the af9033 module
to fill the hardware filters, and then use it inside af9035.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
PID filters are property of af9033 demod. Use PID filters from af9033
driver as it provides those now.
Allow possible dual mode on USB 1.1 mode too as bandwidth could be
just enough when filters are used on both frontends.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Implement PID filter and export it via symbol.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
All error/warnings:
drivers/built-in.o: In function `e4000_set_params':
>> e4000.c:(.text+0x1219a1b): undefined reference to `__umoddi3'
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add a video capture node for the FIMC-IS ISP IP block. The Exynos4x12
FIMC-IS ISP IP block has 2 DMA interfaces that allow to capture raw
Bayer and YUV data to memory. Currently only the DMA2 output is and
raw Bayer data capture is supported.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add support for registering external sensor subdevs using
v4l2-async API. The async API is used only for sensor subdevs
and only for booting from DT.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This patch adds clock provider so the the SCLK_CAM0/1 output clocks
can be accessed by image sensor devices through the clk API.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This patch removes the common fimc-is-sensor driver for image sensors
that are normally controlled by the FIMC-IS firmware. The FIMC-IS
driver now contains only a table of properties specific to each sensor.
The sensor properties required for the ISP's firmware are parsed from
device tree and retrieved from the internal table, which is selected
based on the compatible property of an image sensor.
To use the Exynos4x12 internal ISP the S5K6A3 sensor driver (drivers/
media/i2c/s5k6a3.c) is now required.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This patch adds the V4L2 asynchronous subdev registration and
device tree support. Common clock API is used to control the
sensor master clock from within the subdev.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This patch adds subdev driver for Samsung S5K6A3 raw image sensor.
As it is intended at the moment to be used only with the Exynos
FIMC-IS (camera ISP) subsystem it is pretty minimal subdev driver.
It doesn't do any I2C communication since the sensor is controlled
by the ISP and its own firmware.
This driver, if needed, can be updated in future into a regular
subdev driver where the main CPU communicates with the sensor
directly.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
In all cases, when the first capture is called, we need to
call the code that unmutes the volume.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The calculated values for the minlen and maxlen fields, which were
rounded to multiples of 2 and clamped to a valid range, were left
unused. Use them in the calculation of the register value rather than
using the raw input minlen and maxlen.
This fixes the following warning with a W=1 build:
drivers/media/rc/img-ir/img-ir-hw.c In function ‘img_ir_free_timing’:
drivers/media/rc/img-ir/img-ir-hw.c +228 :23: warning: variable ‘maxlen’ set but not used [-Wunused-but-set-variable]
drivers/media/rc/img-ir/img-ir-hw.c +228 :15: warning: variable ‘minlen’ set but not used [-Wunused-but-set-variable]
Reported-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The JVC timings included timings intended for the secondary decoder
(which matches messages with no leader), however they were in the wrong
part of the timings structure, repeating s00 and s01 rather than being
in s10 and s11.
Distinct repeat timings can't be properly supported yet for JVC anyway
since the scancode callback cannot determine which decoder matched the
message, so for now remove these timings and don't bother to enable the
secondary decoder.
This fixes the following warnings with W=1:
drivers/media/rc/img-ir/img-ir-jvc.c +76 :3: warning: initialized field overwritten [-Woverride-init]
drivers/media/rc/img-ir/img-ir-jvc.c +76 :3: warning: (near initialization for ‘img_ir_jvc.timings.s00’) [-Woverride-init]
drivers/media/rc/img-ir/img-ir-jvc.c +81 :3: warning: initialized field overwritten [-Woverride-init]
drivers/media/rc/img-ir/img-ir-jvc.c +81 :3: warning: (near initialization for ‘img_ir_jvc.timings.s01’) [-Woverride-init]
Reported-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Rename some variables.
Change error status checks from (ret < 0) to (ret).
No actual functionality changes.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
That comes possible after driver was converted to kernel I2C model
(I2C binding & proper I2C client with no gate control hack). All
nasty low level I2C routines are now covered by regmap.
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Gate control is now implemented by rtl2832 I2C adapter so we do not
need proprietary DVB i2c_gate_ctrl() anymore.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
RTL2832 driver provides muxed I2C adapters for tuner bus I2C gate
control. Pass those adapters to rtl2832_sdr and e4000 modules in order
to get rid of proprietary DVB .i2c_gate_ctrl() callback use.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
We need depend on I2C_MUX as rtl2832 demod used requires it.
All error/warnings:
warning: (DVB_USB_RTL28XXU) selects DVB_RTL2832 which has unmet direct dependencies (MEDIA_SUPPORT && DVB_CORE && I2C && I2C_MUX)
ERROR: "i2c_add_mux_adapter" [drivers/media/dvb-frontends/rtl2832.ko] undefined!
ERROR: "i2c_del_mux_adapter" [drivers/media/dvb-frontends/rtl2832.ko] undefined!
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Implement PLL lock control to get PLL lock flag status from tuner
synthesizer.
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
There was 32-bit overflow on VCO frequency calculation which blocks
tuning to 1073 - 1104 MHz. Use 64 bit number in order to avoid VCO
frequency overflow.
After that fix device in question tunes to following range:
60 - 1104 MHz
1250 - 2207 MHz
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Implement gain and bandwidth controls using v4l2 control framework.
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Driver conversion from proprietary DVB tuner model to more
general I2C driver model.
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
rc_map_get() takes a single string literal for the module to load,
so make sure it cannot be used as a format string in the call to
request_module().
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Rename v4l2_format_sdr to v4l2_sdr_format in order to keep it in
line with other formats.
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add volatile boolean control to indicate if tuner frequency synthesizer
is locked to requested frequency. That means tuner is able to receive
given frequency. Control is named as "PLL lock", since frequency
synthesizers are based of phase-locked-loop. Maybe more general name
could be wise still?
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Modern silicon RF tuners has one or more adjustable filters on
signal path, in order to filter noise from desired radio channel.
Add channel bandwidth control to tell the driver which is radio
channel width we want receive. Filters could be then adjusted by
the driver or hardware, using RF frequency and channel bandwidth
as a base of filter calculations.
On automatic mode (normal mode), bandwidth is calculated from sampling
rate or tuning info got from userspace. That new control gives
possibility to set manual mode and let user have more control for
filters.
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The "Renesas Corporation" listed in the copyright notice doesn't exist.
Replace it with "Renesas Electronics Corporation" and update the
copyright years.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Check if index is within bounds _before_ accessing the value.
Signed-off-by: Ole Ernst <olebowle@gmx.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
It was possible that tuner_frequency variable, used for carrier offset
compensation, was uninitialized. That happens when tuner
.get_frequency() callback is not defined.
Currently that case is not possible as only used tuner has this callback.
Coverity CID 1166057: Uninitialized scalar variable (UNINIT)
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Coverity CID 1166051: Logically dead code (DEADCODE)
TS clock calculation could be more accurate, but as it is not,
remove those unused clock speeds.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
While playing with make coccicheck I noticed this message:
drivers/media/rc/rc-main.c:1245:3-9: preceding lock on line 1238
It was introduced by commit 587d1b06e0 ([media] rc-core: reuse device
numbers) which returns -ENOMEM after a mutex_lock without first
unlocking it when there are no more device numbers left. The added code
doesn't depend on the device lock, so move it before the lock is taken.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Static checkers complain about the inconsistent NULL check here.
There is an unchecked dereference of "input->fe" in the call to
tuner_attach_tda18271() and there is a second unchecked dereference a
couple lines later when we do:
input->fe2->tuner_priv = input->fe->tuner_priv;
But actually "intput->fe" can't be NULL because if demod_attach_drxk()
fails to allocate it, then we would have return an error code.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
ARRAY_SIZE(buf) (8 elements) was intended instead of sizeof(buf) (16
bytes). But this is just a sanity check and the callers always pass
valid values so this doesn't cause a problem.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add an img-ir module for decoding the Sanyo infrared protocol.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add an img-ir module for decoding the Sharp infrared protocol.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add an img-ir module for decoding the Sony infrared protocol.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add an img-ir module for decoding the JVC infrared protocol.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add an img-ir module for decoding the NEC and extended NEC infrared
protocols.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add ImgTec IR decoder driver to the build system.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add remote control input driver for the ImgTec Infrared block hardware
decoder, which is set up with timings for a specific protocol and
supports mask/value filtering and wake events.
The hardware decoder timing values, raw data to scan code conversion
function and scan code filter to raw data filter conversion function
will be provided in separate files for each protocol which this part of
the driver can use. The new generic scan code filter interface is made
use of to reduce interrupts and control wake events.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add raw IR remote control input driver for the ImgTec Infrared decoder
block's raw edge interrupts. Generic software protocol decoders are used
to allow multiple protocols to be supported at a time, including those
not supported by the hardware decoder.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add base driver for the ImgTec Infrared decoder block. The driver is
split into separate components for raw (software) decode and hardware
decoder which are in following commits.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
When either of the normal or wakeup filter protocols are changed,
refresh the corresponding scancode filter, i.e. try and set the same
scancode filter with the new protocol. If that fails clear the filter
instead.
If no protocol was selected the filter is just cleared, and if no
s_filter callback exists the filter is left unmodified.
Similarly clear the filter mask when the filter is set if no protocol is
currently selected.
This simplifies driver code which no longer has to explicitly worry
about modifying the filter on a protocol change. This also allows the
change_wakeup_protocol callback to be omitted entirely if there is only
a single available wakeup protocol at a time, since selecting no
protocol will automatically clear the wakeup filter, disabling wakeup.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add a wakeup_protocols sysfs file which controls the new
rc_dev::enabled_protocols[RC_FILTER_WAKEUP], which is the mask of
protocols that are used for the wakeup filter.
A new RC driver callback change_wakeup_protocol() is called to change
the wakeup protocol mask.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Only a single allowed and enabled protocol mask currently exists in
struct rc_dev, however to support a separate wakeup filter protocol two
of each are needed, ideally as an array.
Therefore make both rc_dev::allowed_protos and rc_dev::enabled_protocols
arrays, update all users to reference the first element
(RC_FILTER_NORMAL), and add a couple more helper functions for drivers
to use for setting the allowed and enabled wakeup protocols.
We also rename allowed_protos to allowed_protocols while we're at it,
which is more consistent with enabled_protocols.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The allowed and enabled protocol masks need to be expanded to be per
filter type in order to support wakeup filter protocol selection. To
ease that process abstract access to the rc_dev::allowed_protos and
rc_dev::enabled_protocols members with inline functions.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add generic scancode filtering of RC input events, and fall back to
permitting any RC_FILTER_NORMAL scancode filter to be set if no s_filter
callback exists. This allows raw IR decoder events to be filtered, and
potentially allows hardware decoders to set looser filters and rely on
generic code to filter out the corner cases.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
On certain motherboards (mainly Intel NUC series) bios keeps the
Nuvoton CIR device disabled at boot.
This patch adds a call to kernel PNP layer to activate the device if it
is not already activated. This will improve the chances of the PNP probe
actually succeeding on Intel NUC platforms.
Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
Cc: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
DViCO FusionHDTV7 device that use au0828 can fail to communicate with
xc5000 using i2c interface because of high i2c clock speed - i2c clock
stretching bug. It causes to fail xc5000 firmware loading normally at
the current driver.
Already this problem fixed as changing to low i2c clock speed at
HVR-950q device, also DViCO FusionHDTV7 device can solve it as using low
i2c clock speed - 20KHz.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Propagate errors returned by drivers from the s_filter callback back to
userland when updating scancode filters. This allows userland to see
when the filter couldn't be updated, usually because it's not a valid
filter for the hardware.
Previously the filter was being updated conditionally on success of
s_filter, but the write always reported success back to userland.
Reported-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add a device id to support for PX-S1UD (PLEX ISDB-T usb dongle) which
has sms2270.
Signed-off-by: Satoshi Nagahama <sattnag@aim.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Since the introduction of the new OMAP DSS DVI connector driver in
commit 348077b154 ("OMAPDSS: Add new DVI
Connector driver"), DVI outputs report a new display type of
OMAP_DISPLAY_TYPE_DVI instead of OMAP_DISPLAY_TYPE_DPI. Handle the new
type in the IRQ handler.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
New board addition. No other changes.
[m.chehab@samsung.com: rebase patch and fix whitespace mangling]
Signed-off-by: Pojar George <geoubuntu@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
These chips makes use of the media_entity in the v4l2_subdev struct
and is therefor dependent of the MEDIA_CONTROLLER config.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
try_fmt should just set field to NONE and not return an error if
a different field was passed.
buf_prepare should check if the field passed in from userspace has a
supported field value. At the moment only NONE is supported and ANY
is mapped to NONE.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
- Set the sequence counters correctly.
- Copy timestamps, timecode, relevant buffer flags and field from
the received buffer to the outgoing buffer.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
To keep the vb2 buffer administration in balance stop_streaming() must
return any pending buffers to the vb2 framework.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
There is no reason why we shouldn't enable this here.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This resolves an issue raised by v4l2-compliance: if the given format does
not exist, then pick a default format.
While there is an exception regarding this for TV capture drivers, this
m2m driver should do the right thing.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The default of 1 second is a bit painful, switch to a 25 Hz framerate.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
There is no any reason to use comma here.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The adv7180 has a low power mode in which the analog and the digital processing
section are shut down. Implement the s_power callback to let bridge drivers put
the part into low power mode when not needed.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Add support for async device registration to the adv7180 driver.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The proper way to handle IRQs that need to be able to sleep in their IRQ handler
is to use a threaded IRQ.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The device driver core already prints out a very similar message when a driver
fails to probe. No need to print one in the driver itself.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The device can't possibly be registered at this point, so no need to to call
v4l2_device_unregister_subdev().
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Make sure to free the control handler when the device is removed.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The mutex is used in the subdev callbacks, so unregister the subdev before the
mutex is destroyed.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Support this ioctl as part of the v4l2 core. Use the new ioctl
name and struct v4l2_edid type in the existing core code.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
The wrong ioctl numbers were used due to a copy-and-paste error.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org # for v3.7 and up
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This patch adds the driver for the LM3646, dual LED Flash driver.
The LM3646 has two 1.5A sync. boost converter with dual white current source.
It is controlled via an I2C compatible interface.
Each flash brightness, torch brightness and enable/disable can be controlled.
Under voltage, input voltage monitor and thermal threshhold Faults are added.
Please refer the datasheet http://www.ti.com/lit/ds/snvs962/snvs962.pdf
Signed-off-by: Daniel Jeong <gshark.jeong@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
If we have no pdata defined and driver fails to register we leak memory.
Converting to devm_kzalloc prevents this to happen.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Let's keep the style for all comments in the code, namely using small letters
whenever it's possible.
There is no functional change.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
There is no need to keep the FSF address inside each file. Moreover, it might
change in future which will make this one obsolete.
There is no functional change.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Empty port nodes are allowed but currently unsupported as the
v4l2_of_get_next_endpoint() function assumes that all port nodes have at
least an endpoint. Fix this.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Nicolas Dufresne