We should not be using typedefs at the Kernel, as this makes harder
for reviewers to understand the code.
Signed-off-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Fixes CodingStyle error:
WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable.
Signed-off-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
No need for an else, as the previous if will return.
Signed-off-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This ATSC/QAM-B demodulator is used by several new devices.
Add support for it. Other patches will fix CodingStyle issues.
Signed-off-by: Fred Richter <frichter@hauppauge.com>
Signed-off-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The documentation of the xvYCC601 Y'CbCr encoding was part of the SMPTE 170M
(SDTV) colorspace, but it should have been part of the Rec. 709 (HDTV) colorspace
as per the xvYCC standard.
This change only affects the documentation and not any code.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The handling of VIDIOC_G/S_PRIORITY is now entirely done by the V4L2
core, so we can drop the g/s_priority ioctl ops.
We do have to make sure though that when S_PRIORITY is called we check
that the driver used struct v4l2_fh. This check can be removed once all
drivers are converted to that structure.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
By using struct v4l2_fh both the prio handling and the linked list
implementation in pvrusb2 can be removed since both are now done in
the v4l2 core if you use struct v4l2_fh.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
To keep V4L2 drivers that did not yet convert to unlocked_ioctl happy,
the v4l2 core had a .ioctl file operation that took a V4L2 lock.
The last drivers are now converted to unlocked_ioctl, so all this
old code can now be removed.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The V4L2 core will warn if this is not done. Unfortunately this driver
wasn't updated.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Instead of .ioctl use unlocked_ioctl. This allows us to finally remove
the old .ioctl op.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Switch this driver over to the V4L2 core locking mechanism in preparation
for switching to unlocked_ioctl. Suggested by Laurent Pinchart.
This patch introduces a new mutex at the struct uvc_video level and
drops the old mutex at the queue level. The new lock is now used for all
ioctl locking and in the release file operation (the driver always has
to take care of locking in file operations, the core only serializes
ioctls).
Note that the mmap and get_unmapped_area file operations no longer take
a lock. Commit f035eb4e97 fixed a AB-BA
deadlock by moving all the locking down into vb2, so the mmap and
get_unmapped_area file operations should no longer do any locking before
calling into vb2.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This driver does its own locking, so there is no need to use
ioctl instead of unlocked_ioctl.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
As far as I can tell pvrusb2 does its own locking, so there is
no need to use .ioctl.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
It is confusing which parts of the driver are adv7604 specific, adv7611
specific or common for both. This patch renames any adv7604 prefixes (both
for functions and defines) to adv76xx whenever they are common.
Signed-off-by: Pablo Anton <pablo.anton@vodalys-labs.com>
Signed-off-by: Jean-Michel Hautbois <jean-michel.hautbois@vodalys.com>
[hans.verkuil@cisco.com: rebased and renamed ADV76xx_fsc to ADV76XX_FSC]
[hans.verkuil@cisco.com: kept the existing adv7604 driver name]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Add handling for timeout case.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
wait_for_completion_timeout() returns unsigned long not int. This assigns
the return value to an appropriately typed variable (also helps keep
static code checkers happy).
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The bits are the same, but register is 0xf4 on ADV7611 instead of 0xfc.
When reading back the value in log_status, differentiate both.
Signed-off-by: Jean-Michel Hautbois <jean-michel.hautbois@vodalys.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
return type of wait_for_completion_timeout is unsigned long not int. A
appropriately named variable of type unsigned long is added and the
assignments fixed up.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Integer return of bcm2048_parse_rds_rt () is never used, changing the return
type to void.
Signed-off-by: Luis de Bethencourt <luis.bg@samsung.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The CP_NON_STD_VIDEO bit indicates an input not aligned with DV timings.
If there is no input, and chip is in free run mode, consider we are locked.
Signed-off-by: Jean-Michel Hautbois <jean-michel.hautbois@vodalys.com>
[hans.verkuil@cisco.com: put both conditions in one 'if']
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The video_unregister_device() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The vfree() function performs also input parameter validation.
Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
FM (frequency modulated) signal for SDR is generated by varying the
phase, where phase variation is proportional to input signal. It is
seen that, the larger phase increments leads to discontinuities in
the signal recovered after demodulation. Reducing the extent of phase
variation with respect to input signal, equivalent to reducing the
modulation index.
Tested using FM receiver flow graph in gnuradio-companion.
Cc: Antti Palosaari <crope@iki.fi>
Signed-off-by: Prashant Laddha <prladdha@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The common implementation for sin/cos in include/linux/fixp-arith.h
has been improved recently to provide higher precision.
Replacing native implementation of sin/cos in vivid sdr with common
implementation. This serves two purposes:
1. Improved accuracy: the native implementation based on the Taylor
series is more prone to rounding errors.
2. Reuse of common function: this is better compared to maintaining
native versions for each driver.
Suggested by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Antti Palosaari <crope@iki.fi>
Signed-off-by: Prashant Laddha <prladdha@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The cos table used at fixp-arith.h has only 8 bits of precision.
That causes problems if it is reused on other drivers.
As some media drivers require a higher precision sin/cos
implementation, replace the current implementation by one that
will provide 32 bits precision.
The values generated by the new implementation matches the
32 bit precision of glibc's sin for an angle measured in
integer degrees.
It also provides support for fractional angles via linear
interpolation. On experimental calculus, when used a table
with a 0.001 degree angle, the maximum error for sin is
0.000038, which is likely good enough for practical purposes.
There are some logic there that seems to be specific to the
usage inside ff-memless.c. Move those logic to there, as they're
not needed elsewhere.
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Prashant Laddha <prladdha@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
In case allocation vb2_dma_sg_init_ctx() fails during cx8802_probe(), the
already allocated cx8802 device structure memory is not freed in the used
exit path. Thus adapt the cleanup handling accordingly. Detected by Coverity
CID 1260065.
Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Memory allocated for sh_vou_file is not deallocated
on error paths in sh_vou_open().
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 <mchehab@osg.samsung.com>
This patch uses managed resource APIs to allocate memory
in order to simplify the driver unload or failure cases
Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
If NO_DMA=y:
warning: (VIDEO_OMAP2_VOUT && VIDEO_VIU && VIDEO_TIMBERDALE) selects VIDEOBUF_DMA_CONTIG which has unmet direct dependencies (MEDIA_SUPPORT && HAS_DMA)
drivers/built-in.o: In function `__videobuf_dc_free':
videobuf-dma-contig.c:(.text+0x6f4d32): undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `__videobuf_dc_alloc':
videobuf-dma-contig.c:(.text+0x6f4fe6): undefined reference to `dma_alloc_coherent'
drivers/built-in.o: In function `__videobuf_mmap_mapper':
videobuf-dma-contig.c:(.text+0x6f518e): undefined reference to `dma_free_coherent'
Commit 244829226f ("[media] timberdale: do not select TIMB_DMA")
dropped the dependency of VIDEO_TIMBERDALE on DMADEVICES, and thus the
implicit dependency on HAS_DMA. VIDEO_TIMBERDALE selects
VIDEOBUF_DMA_CONTIG, which bypasses its dependency on HAS_DMA. Make
VIDEO_TIMBERDALE depend on HAS_DMA to fix this.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
If NO_DMA=y:
warning: (VIDEO_AM437X_VPFE && VIDEO_DM365_VPFE && VIDEO_DT3155 && VIDEO_OMAP4) selects VIDEOBUF2_DMA_CONTIG which has unmet direct dependencies (MEDIA_SUPPORT && HAS_DMA)
drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_mmap’:
drivers/media/v4l2-core/videobuf2-dma-contig.c:207: error: implicit declaration of function ‘dma_mmap_coherent’
drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_get_base_sgt’:
drivers/media/v4l2-core/videobuf2-dma-contig.c:390: error: implicit declaration of function ‘dma_get_sgtable’
VIDEO_AM437X_VPFE selects VIDEOBUF2_DMA_CONTIG, which bypasses its
dependency on HAS_DMA. Make VIDEO_AM437X_VPFE depend on HAS_DMA to fix
this.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The if and the else code are identical - so the condition has no effect
on the effective code.
This patch removes the condition and the duplicated code.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
If the media controller (MC) is not enabled, it will compile
fine, but will fail at the linkedition:
ERROR: "media_device_unregister" [drivers/media/usb/siano/smsusb.ko] undefined!
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This is really a simple function, but using it avoids to have
if's inside the drivers.
Also, the kABI becomes a little more clearer.
This shouldn't generate any overhead, and the type check
will happen when compiling with MC DVB enabled.
So, let's do it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c: In function ‘dvb_usbv2_adapter_dvb_exit’:
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:531:25: warning: unused variable ‘d’ [-Wunused-variable]
struct dvb_usb_device *d = adap_to_d(adap);
^
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:403:13: warning: ‘dvb_usbv2_media_device_register’ defined but not used [-Wunused-function]
static void dvb_usbv2_media_device_register(struct dvb_usb_adapter *adap)
drivers/media/usb/dvb-usb/dvb-usb-dvb.c:97:13: warning: ‘dvb_usb_media_device_register’ defined but not used [-Wunused-function]
static void dvb_usb_media_device_register(struct dvb_usb_adapter *adap)
^
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Instead of using media_dev argument for dvb_create_media_graph(),
use the adapter.
That allows to create a stub for this function, if compiled
without DVB support, avoiding to add extra if's at the drivers.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Instead of assuming just one adapter, change the code to store
one media controller per adapter.
This works fine for dvb-usb, as, on all drivers here, it is not
possible to write a media graph that would mix resources between
the two different adapters.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Create a struct media_device and add it to the dvb adapter.
Please notice that the tuner is not mapped yet by the dvb core.
[mchehab@osg.samsung.com: use config option MEDIA_CONTROLLER_DVB]
Signed-off-by: Rafael Lourenço de Lima Chehab <chehabrafael@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Instead of assuming just one adapter, change the code to store
one media controller per adapter.
This works fine for dvb-usb, as, on all drivers here, it is not
possible to write a media graph that would mix resources between
the two different adapters.
Acked-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Create a struct media_device and add it to the dvb adapter.
Please notice that the tuner is not mapped yet by the dvb core.
[mchehab@osg.samsung.com: use config option MEDIA_CONTROLLER_DVB due to a rebase]
Signed-off-by: Rafael Lourenço de Lima Chehab <chehabrafael@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
We need to initialize the media controller earlier, as the core
will call the smsdvb hotplug during register time. Ok, this is
an async operation, so, when the module is not loaded, the media
controller works.
However, if the module is already loaded, nothing will be
registered at the media controller, as it will load too late.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Right now, this is a debug message, misplaced. Promote it
to an info message, as it helps to discover if something
bad happened during device init.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
All siano modules have a sms_dbg parameter. Now that we're using
the standard pr_debug() macro, we can get rid of it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
On most cases, sms_info() should actually be pr_debug(), but,
on other places, it should be pr_info().
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
There's no reason to use a macro here. Just replace everything,
and let those debug messages to be activated via dynamic printk.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Despite its name, those functions are acutally debug
prints for the IR part of the driver. So, properly
map them using pr_debug()
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
