On real devices, signal strength is always a negative
number when represented in dBm. A more interesting
range is to use dBmV (which is what Kaffeine does,
for example). The conversion from the two units are
simple:
dBmV = dBm - 108
Usually, signal strength ranges up to 100dBmV. Adjust the
maximum value to be around 74 dBmV, when there's no
frequency shift, which represents a good signal.
With that, Kaffeine displays it a lot better.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add support for incrementing DVBv5 stats for block counters
and post/pre BER byte counts.
For now, the errors won't be incremented yet.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The dvb_frontend will already call status periodically, when
a channel is tuned. So, no need to have a work queue for
such purpose.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The current stats code is broken on so many ways. It ends
reporting 0 for signal strengh, and the work queue doesn't
run. If it would run, the code would crash.
Fix such issues and add the minimum stuff for DVBv5 stats.
Right now, only strength and cnr and UCB are implemented.
pre/post BER stats will always return zero.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Right now, the config data passed from the bridge driver is
just ignored.
Also, let's initialize the delayed work at probing time.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The code there is already doing the right thing, as it uses
value & 0xff, value & 0xff00, which already ensures the
expected endiannes.
So, it doesn't make any sense to touch the order depending on
the CPU endiannes.
Yet, as pointed by Daniel at the mailing list:
https://lore.kernel.org/linux-media/e614351c-215c-c048-52af-7c200b164f41@xs4all.nl/T/#m8d221684a151833966359c2ed8bdce0f0ee4e5fd
The reverse code is needed by the decoder. So, keep it
no matter the endiannes.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Use 474 MHz frequency for DVB-T/DVB-C, as this is the at the
channel range that it is valid on most places for DVB-T.
In the case of DVB-S, let's add Astra 19.2E initial
frequency at the scan files as the default, e. g. 12.5515 GHz.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Right now, there are some issues at the tuning logic:
1) the config struct is not copied at the tuner driver.
so, it won't use any frequency table at all;
2) the code that checks for frequency shifts is called
at set_params. So, lock_status will never be zeroed;
3) the signal strength will also report a strong
signal, even if not tuned;
4) the logic is not excluding non-set frequencies.
Fix those issues.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The two places where ENDIAN_BITFIELD is used is for a single
8-bits integer. No need to correct endiannes on such cases.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Genmask is always highest order to low order. It doesn't make
any sense to make it depends on endiannes.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
There are several warnings produced when the driver is built
for 32-bit archs. Solve them.
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
It is better to use the higher level dev_foo() than pr_foo()
for printks.
Change them at vidtv at the more trivial places.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
menuconfig DVB_TEST_DRIVERS should be added after the V4L_TEST_DRIVERS,
otherwise there are no drivers listed in these two menus.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 24fb190e92 ("media: vidtv: implement a tuner driver")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Digital TV devices consist of several independent hardware components
which are controlled by different drivers.
Each media device is controlled by a group of cooperating drivers with the
bridge driver as the main driver.
This patch adds a bridge driver for the Virtual Digital TV driver [vidtv].
The bridge driver binds to the other drivers, that is, vidtv_tuner and
vidtv_demod and implements the digital demux logic, providing userspace
with a MPEG Transport Stream.
The MPEG related code is split in the following way:
- vidtv_ts: code to work with MPEG TS packets, such as TS headers,
adaptation fields, PCR packets and NULL packets.
- vidtv_psi: this is the PSI generator.
PSI packets contain general information about a MPEG Transport Stream.
A PSI generator is needed so userspace apps can retrieve information
about the Transport Stream and eventually tune into a (dummy) channel.
Because the generator is implemented in a separate file, it can be
reused elsewhere in the media subsystem.
Currently vidtv supports working with 3 PSI tables:
PAT, PMT and SDT.
- vidtv_pes: implements the PES logic to convert encoder data into
MPEG TS packets. These can then be fed into a TS multiplexer and
eventually into userspace.
- vidtv_s302m: implements a S302M encoder to make it possible to
insert PCM audio data in the generated MPEG Transport Stream.
This shall enable passing an audio signal into userspace so it can be
decoded and played by media software.
- vidtv_channels: Implements a 'channel' abstraction
When vidtv boots, it will create some hardcoded channels:
Their services will be concatenated to populate the SDT.
Their programs will be concatenated to populate the PAT
For each program in the PAT, a PMT section will be created
The PMT section for a channel will be assigned its streams.
Every stream will have its corresponding encoder polled to produce TS
packets
These packets may be interleaved by the mux and then delivered to the
bridge
- vidtv_mux - Implements a MPEG TS mux, loosely based on the ffmpeg
implementation
The multiplexer is responsible for polling encoders,
interleaving packets, padding the resulting stream with NULL packets if
necessary and then delivering the resulting TS packets to the bridge
driver so it can feed the demux.
Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Implement a I2C demodulator driver, simulating support for DVB-T, DVB-C
and DVB-S.
This demodulator will periodically check the signal quality against a table
and drop the TS lock if it drops below a threshold value, regaining it in
the event that the signal improves.
Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The virtual DVB test driver serves as a reference DVB driver and helps
validate the existing APIs in the media subsystem. It can also aid
developers working on userspace applications.
This dummy tuner should support common TV standards such as DVB-T/T2/S/S2,
ISDB-T and ATSC when completed.
Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Fix this warning:
vivid-core.c: In function 'vivid_create_devnodes':
vivid-core.c:1318:11: warning: unused variable 'i' [-Wunused-variable]
1318 | int ret, i;
| ^
and this error:
vivid-core.c: In function 'vivid_create_instance':
vivid-core.c:1885:47: error: 'cec_tx_bus_cnt' undeclared (first use in this function)
1885 | ret = vivid_create_devnodes(pdev, dev, inst, cec_tx_bus_cnt,
| ^~~~~~~~~~~~~~
vivid-core.c:1885:47: note: each undeclared identifier is reported only once for each function it appears in
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
-----BEGIN PGP SIGNATURE-----
iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl9VerweHHRvcnZhbGRz
QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGhc4H/iHD6qLdB36gZB6K
oc2nJyrqyWitv4ti2Mnt5PA7o4wX4l6nnr1QvoaJ4BRs5Ja1czRvb2XDmdzqAoIA
xITGoafqaAeDfxQ91bWrJsVN0pCRKiGwddXlU7TWmqw/riAkfOqi6GYKvav4biJH
+n1mUPQb1M2IbRFsqkAS+ebKHq3CWaRvzKOEneS88nGlL5u31S9NAru8Ru/fkxRn
6CwGcs1XRaBPYaZAhdfIb0NuatUlpkhPC9yhNS9up6SqrWmK3m65vmFVng6H0eCF
fwn1jVztboY/XcNAi5sM9ExpQCql6WLQEEktVikqRDojC8fVtSx6W55tPt7qeaoO
Z6t4/DA=
=bcA4
-----END PGP SIGNATURE-----
Merge tag 'v5.9-rc4' into patchwork
Linux 5.9-rc4
* tag 'v5.9-rc4': (1001 commits)
Linux 5.9-rc4
io_uring: fix linked deferred ->files cancellation
io_uring: fix cancel of deferred reqs with ->files
include/linux/log2.h: add missing () around n in roundup_pow_of_two()
mm/khugepaged.c: fix khugepaged's request size in collapse_file
mm/hugetlb: fix a race between hugetlb sysctl handlers
mm/hugetlb: try preferred node first when alloc gigantic page from cma
mm/migrate: preserve soft dirty in remove_migration_pte()
mm/migrate: remove unnecessary is_zone_device_page() check
mm/rmap: fixup copying of soft dirty and uffd ptes
mm/migrate: fixup setting UFFD_WP flag
mm: madvise: fix vma user-after-free
checkpatch: fix the usage of capture group ( ... )
fork: adjust sysctl_max_threads definition to match prototype
ipc: adjust proc_ipc_sem_dointvec definition to match prototype
mm: track page table modifications in __apply_to_page_range()
MAINTAINERS: IA64: mark Status as Odd Fixes only
MAINTAINERS: add LLVM maintainers
MAINTAINERS: update Cavium/Marvell entries
mm: slub: fix conversion of freelist_corrupted()
...
If something fails after calling v4l2_device_register(),
it should call v4l2_device_put().
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
In order to reduce even further the size of the big
vivid_create_instance() function, let's place the part of the
logic which creates the device nodes into a separate function.
With this and the past patches, those warnings finally
vanishes:
drivers/media/test-drivers/vivid/vivid-core.c: drivers/media/test-drivers/vivid/vivid-core.c:1189 vivid_create_instance() parse error: turning off implications after 60 seconds
drivers/media/test-drivers/vivid/vivid-core.c: drivers/media/test-drivers/vivid/vivid-core.c:1257 vivid_create_instance() parse error: __split_smt: function too hairy. Giving up after 303 seconds
The init code also seems more organized after breaking the long
function into a smaller set.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Instead of placing everything inside vivid_create_instance(),
we can move the part which creates per-type video queues
into a separate function.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Move such logic from vivid_create_instance(), as otherwise
smatch takes forever.
The vivid_create_instance() is still a too big for my taste.
So, further cleanups are still needed.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The vivid_create_instance() function is too harry. Smatch can't
process it, because it takes too long.
The detection part is an important piece of it. As such, there
are even comments before and after such block.
So, it makes sense to just move it to a separate function.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.
[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Fix the following coccinelle reports:
drivers/media/test-drivers/vicodec/vicodec-core.c:1674:2-21:
WARNING: Assignment of 0/1 to bool variable
drivers/media/test-drivers/vicodec/vicodec-core.c:1675:2-26:
WARNING: Assignment of 0/1 to bool variable
By replacing the assignment to 0 with 'false' instead.
Found using - Coccinelle (http://coccinelle.lip6.fr)
Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Use vb2_video_unregister_device() to automatically stop streaming
at unregister time.
This avoids the use of vb2_queue_release() which should not be
called by drivers that set vdev->queue.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The check for a required control in the request was missing a call to
v4l2_ctrl_request_hdl_put(), so the control request object was never
released.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 997deb811b ("media: vicodec: Add support for stateless decoder.")
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
vivid_meta_out_process() is setting `brightness`, `contrast`, `saturation`
and `hue` using tpg_s_*(). This is wrong, since tpg_s_*() do not provide
range checks. Using tpg_s_*() here also makes the control framework
out-of-sync with the actual values. Use v4l2_ctrl_s_ctrl() instead.
This issue has been reported by syzbot as an out-of-bounds read bug in
precalculate_color().
Reported-and-tested-by: syzbot+02d9172bf4c43104cd70@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?extid=02d9172bf4c43104cd70
Fixes: 746facd393 ("media: vivid: Add metadata output support")
Suggested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add a control in VIMC to display information such as the correct order of
colors for a given test pattern, counter, brightness, hue, saturation,
contrast, width and height at sensor over test image.
Signed-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>
Acked-by: Helen Koike <helen.koike@collabora.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
It's all too easy to get confused by the V4L2_TYPE_IS_OUTPUT
macro, when it's used as !V4L2_TYPE_IS_OUTPUT.
Reduce the risk of confusion with macro to explicitly
check for the CAPTURE queue type case.
This change does not affect functionality, and it's
only intended to make the code more readable.
Suggested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: checkpatch: align with parenthesis]
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The tpg_alloc() and vmalloc() functions have no 2-factor argument form, so
multiplication factors need to be wrapped in array_size().
This issue was found with the help of Coccinelle and, audited and fixed
manually.
Addresses-KSPP-ID: https://github.com/KSPP/linux/issues/83
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add a cache_hints module param to control per-queue user space cache
hints support.
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Set the V4L2_CAP_IO_MC capability flag to report this vimc
inputs/outputs are controlled by the media graph.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add support for RGB888_*, BGR888_* and GBR888_* media bus formats on
the source pad of debayer subdevices.
Acked-by: Helen Koike <helen.koike@collabora.com>
Co-developed-by: Vitor Massaru Iha <vitor@massaru.org>
Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add missing RGB888_*, BGR888_* and GBR888_* media bus codes in the
vimc_pix_map_list. Since there is no GBR24 pixelformat, use the RGB24
pixelformat for MEDIA_BUS_FMT_GBR888_1X24.
Acked-by: Helen Koike <helen.koike@collabora.com>
Co-developed-by: Vitor Massaru Iha <vitor@massaru.org>
Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Change vimc_pix_map_list to allow multiple media bus codes to map to the
same pixelformat, making it possible to add media bus codes for which
there are no pixelformat.
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: fix sparse warning: const u32 -> u32]
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The colorspace reported by a video nodes should not be
V4L2_COLORSPACE_DEFAULT. Instead a default colorspace should be picked
by the driver if V4L2_COLORSPACE_DEFAULT is given by userspace to
{G,S,TRY}_FMT.
The colorspace V4L2_COLORSPACE_SRGB is arbitrary chosen as the vimc
default format to report as it's used for most webcams.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
If these functions fail then we return success, but we should instead
preserve negative error code and return that.
Fixes: fde649b418 ("media: vicodec: Register another node for stateless decoder")
Fixes: c022a4a957 ("media: vicodec: add struct for encoder/decoder instance")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
We never use _ in directory names in the media subsystem, so
rename to test-drivers instead for consistency.
Also update MAINTAINERS with the new path.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
