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This patch fixes incorrect return value. Errors should be returned
as negative numbers.
Reported-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Pidgin uses gstreamer (and libv4l) to work. Without implementing this ioctl,
it won't detect properly the size range, and driver will fail.
So, this patch is required, in order to use an em27xx webcam, like
Silvercrest.
The pigdin/gstreamer/libv4l needs to be fixed, as it shouldn't assume
that all drivers will implement this optional ioctl, but, at least now,
devices with em28xx have a better chance of working with pidgin.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Safety reasons. We shouldn't be trying to reconfigure a risc
processor instruction queue unless it's stopped.
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Previous driver over-reported errors and stopped the video fifo
(causing video to stop) if 1) A risc error occured 2) The risc processor
detected that it has missing lines in the video frame 3) The risc fifo
is about to overflow.
The previous driver reported all three of these cases as risc errors
when this is technically not correct. So, the function was cleaned up.
1. Ensure that risc opcode related errors are correctly shown as such,
and not overly reported for non-risc-opcode cases.
2. Ensure that line sync and overflow errors are not reported as opcode errors.
3. Ensure that only the risc-op-code case can stop the fifo and dump channel
/ risc processor information.
The net result is that if video becomes unstable, cable disconnect, this will
not trigger a stop of the video firmware (due to missing lines errors).
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1. Removed the verbose 'dump channel state to console', very noisy in
weak signal conditions.
2. No need for the video buffer timeout to stop the risc engine here.
Clearer and easier to maintain if start_video_dma() is the single
place that this is done.
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Inform applications that multiple audio inputs are available on
non-tv inputs.
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Ensure audio is established at driver start.
Ensure the correct defaults are established for the audio path if
the cards struct has nothing defined.
Allow the caller to select one of the two baseband input paths.
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add code to program the flatiron internal i2c ADC and pass the
appropriate audio mux enums to the cx25840 driver.
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The change effects cx23885 boards only and preserves support for existing
boards. Essentially, if we're using baseband audio into the cx23885 AV
core then we have to patch registers. The cx23885 driver will call
with either CX25840_AUDIO8 to signify tuner audio or AUDIO7 to
signify baseband audio. If/When we become more comfortable with this change
across a series of products then we may decide to relax the cx23885 only
restriction.
[liplianin@netup.ru: fix missing state declaration]
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Coding style and printk's cleaned up in following patches.
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This change is probably good for other boards also, but the change
has limited scope and is reasonably safe.
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Coding style and printk's are cleaned up in subsequent patches
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
A handlful of coding style issue cleaned up in the following patches.
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
vidioc_g_tuner should not do any memset for the parameters. Core
already does that. In particular, V4L2 core now does some handling
for the tuner type, and the tuner-core module relies on that.
So, doing any memset there is a very bad idea.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
[stoth@kernellabs.com: add it to the makefile and fix snd_card binding]
[liplianin@netup.ru: videobuf: Remove the videobuf_sg_dma_map/unmap functions]
Signed-off-by: Mijhail Moreyra <mijhail.moreyra@gmail.com>
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
In stb0899_status stb0899_check_data the first read of STB0899_VSTATUS
could read old (from previous search) LOOP status bit and the search
fails on a good frequency.
With the patch more transponder could be locked and locks about 2*
faster.
Signed-off-by: Lutz Sammer<johns98@gmx.net>
Reviewed-by: Manu Abraham<manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The code here treated user pointers correctly, but the __user tags
weren't used correctly so it caused Sparse warnings:
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Currently the tuner is constantly powered causing these effects.
1. Remembering last tune channel causing corruptions of changing channel.
2. Causing corruption on other frontend.
3. Higher current in standby of demodulator with clock running.
Power sequence now follows;
Power Up
Tuner on -> Frontend suspend off -> Tuner clk on
Power Down
Frontend suspend on -> Tuner clk off -> Tuner off
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The tvp5150 video decoder has two operation modes to configure the video
standard used.
If auto-switch mode is enable, the device can sense the signal and detect which
video standard the device is operating. Also the device can be forced to use a
user defined video standard.
Each operation mode uses a different register and the bitmask values to
represent each standard is different.
So we add video standard constants for both autoswitch and no-autoswitch mode.
Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Both mt9t001.c and mt9p031.c have two identical issues, those
being that they will need module.h inclusion for the upcoming
cleanup going on there, and that their dependencies don't limit
selection of configs that will fail to compile as follows:
The related config options are CONFIG_MEDIA_CONTROLLER and
CONFIG_VIDEO_V4L2_SUBDEV_API. Looking at the code, it appears
that the driver was never intended to work without these enabled,
so add a dependency on CONFIG_VIDEO_V4L2_SUBDEV_API, which in
turn already has a dependency on CONFIG_MEDIA_CONTROLLER.
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
As msp3400 allows standards detection, add support for it. That
efectivelly means that devices with msp3400 can now implement
VIDIOC_QUERYSTD, and it will provide very good detection for
the standard, specially if combined with a video decoder detection.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Instead of using V4L2_STD_ALL when no standard is detected,
trust that the maximum allowed standards are already filled by
the V4L2 core. It is better this way, as the bridge and/or the audio
decoder may have some extra restrictions to some video standards.
This also allow other devices like audio and tuners to contribute to
standards detection, when they support such feature.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
According with the V4L2 API spec:
"When detection is not possible or fails, the set must contain
all standards supported by the current video input or output."
The V4L2 core has the mask with all supported standards already. So,
apply it. Driver and subdevs can then just remove standards from the
mask, as they're able of detecting audio, video and frames frequency.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There are several bugs at saa7115 standards detection:
After the fix, the driver is returning the proper standards,
as tested with 3 different broadcast sources:
On an invalid channel (without any TV signal):
[ 4394.931630] saa7115 15-0021: Status byte 2 (0x1f)=0xe0
[ 4394.931635] saa7115 15-0021: detected std mask = 00ffffff
With a PAL/M signal:
[ 4410.836855] saa7115 15-0021: Status byte 2 (0x1f)=0xb1
[ 4410.837727] saa7115 15-0021: Status byte 1 (0x1e)=0x82
[ 4410.837731] saa7115 15-0021: detected std mask = 00000900
With a NTSC/M signal:
[ 4422.383893] saa7115 15-0021: Status byte 2 (0x1f)=0xb1
[ 4422.384768] saa7115 15-0021: Status byte 1 (0x1e)=0x81
[ 4422.384772] saa7115 15-0021: detected std mask = 0000b000
Tests were done with a WinTV PVR USB2 Model 29xx card.
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
