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From: Mauro Carvalho Chehab <mchehab@redhat.com>
While trying to fix an mt9v001 webcam, I noticed that HSCALE/VSCALE do
work with em28xx + webcam. The issue is that the scaling setup depends
on the number of visible rows/cols of the input image.
With mt9v011 (Silvercrest), the resolution is 640x480. So, the scaling
is different from a normal TV image (720x480 on NTSC). This were causing
a wrong scaling and a previous patch disabled scaling.
As each sensor have their different resolution setting, the xres/yres
should be adjusted accordingly with the input sensor.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Just renames the flag, to use a clearer name. Later patches will use
this flag to properly set some drivers behaviors for webcams.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Discovered the bug that were limiting the output format to just RGB565.
Now, it is possible to output image at Bayer format (the original one,
as generated by Silvercrest sensor, and two others), and also on YUY.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Webcams have different constraints than other v4l devices. This patch
makes the format ioctls to behave better. It also fixes a bug at open()
handler, that were always reseting resolution to the maximum available
one.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Add suppport for the teste RGB565 format (16 bits/pixel).
Currently, webcam support works only at RGB565, at 640x480.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Trent Piepho <xyzzy@speakeasy.org>
The v4l function has a better algorithm for aligning image size.
It appears that the em2800 can only scale by 50% or 100%, i.e. the only
heights supported might be 240 and 480. In that case the old code would
set any height other than 240 to 480. Request 240 get 240, but request 239
and then you get 480. Change it to round to the nearest supported value.
Priority: normal
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Hans Verkuil <hverkuil@xs4all.nl>
It is no longer needed to use a struct pointer as argument, since v4l2_subdev
doesn't require that ioctl-like approach anymore. Instead just pass the input,
output and config (new!) arguments directly.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
s_std didn't belong in the tuner ops. Stricly speaking it should be part of
the video ops, but it is used by audio and tuner devices as well, so it is
more efficient to make it part of the core ops.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
s_standby is only used to put the tuner in powersaving mode, so move it
from core to tuner.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Douglas Schilling Landgraf <dougsland@redhat.com>
Converted em28xx driver to v4l2_subdev.
Thanks to Hans Verkuil <hverkuil@xs4all.nl> for helping this conversion.
Priority: normal
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Vitaly Wool <vital@embeddedalley.com>
Compro VideoMate uses an external audio DSP chip, controlled via tvaudio
module (tda9874a). This patch improves em28xx infrastructure to support
an external audio processor and fixes the Compro VideoMate entry to work
with it.
Signed-off-by: Vitaly Wool <vital@embeddedalley.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Nicola Soranzo <nsoranzo@tiscali.it>
Lots of coding style fixes and a typo correction for em28xx.
Priority: normal
Signed-off-by: Nicola Soranzo <nsoranzo@tiscali.it>
[dougsland@redhat.com: fixed a reject due to a change on em28xx-audio.c]
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
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From: Thierry MERLE <thierry.merle@free.fr>
usb_make_path reports canonical bus info. Use it when reporting bus info
in VIDIOC_QUERYCAP.
Priority: normal
Signed-off-by: Thierry MERLE <thierry.merle@free.fr>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Robert Krakora <rob.krakora@messagenetsystems.com>
Fix for KWorld 330U Board
Many thanks to Devin and Mauro!!!
Priority: normal
Signed-off-by: Robert Krakora <rob.krakora@messagenetsystems.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
em28xx were trying to access the third input entry, even for boards that
don't support it.
This patch reviews the input mux selection fixing this bug and a few
other troubles, like not validating the input on one userspace ioctl.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Since the i2c driver ID will be removed in the near future we have to
modify the v4l2 debugging API to use the driver name instead of driver ID.
Note that this API is not used in applications other than v4l2-dbg.cpp
as it is for debugging and testing only.
Should anyone use the old VIDIOC_G_CHIP_IDENT, then this will be logged
with a warning that it is deprecated and will be removed in 2.6.30.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Introduce a struct v4l2_file_operations for v4l2 drivers.
Remove the unnecessary inode argument.
Move compat32 handling (and llseek) into the v4l2-dev core: this is now
handled in the v4l2 core and no longer in the drivers themselves.
Note that this changeset reverts an earlier patch that changed the return
type of__video_ioctl2 from int to long. This change will be reinstated
later in a much improved version.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Devin Heitmueller <dheitmueller@linuxtv.org>
Add additional output formats, which will be useful for the Pinnacle PCTV
Ultimate 880e integration with the saa7136.
Thanks to Ray Lu from Empia for providing the em2860/em2880 datasheet.
Priority: normal
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Now, just two routines are enough for analog: the first one configs the analog
part and register V4L2 devices, and the second one release analog devices.
After this patch, it will be easier to transform em28xx-video into an em28xx
extension, loaded only on analog devices.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
em28xx-video were holding several code that are not specific to V4L2 interface.
This patch moves the core code for em28xx-core, and usb probing code into em28xx-cards.
This opens the possibility of breaking em28xx into a core module and a V4L2 module, loaded
only on devices that have analog interfaces.
Some cleanup may be done at em28xx-cards to optimize the config code.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
The em28xx driver can be coupled to an anciliary AC97 chip. This patch
allows read/write AC97 registers directly.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
vidioc_g_ctrl() were using an uneeded confusing logic. Instead, use the
direct approach.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch uses the same code for enumberating video formats that are
present on cx88, bttv and saa7134 drivers.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
The changeset 78aa52a159cf introduced a bug on em28xx: buffer setup should be
awaking xc3028. Instead, since we didn't specify the tuner mode, the device
were going to sleep, due to the lack of tuner mode when asking tuner to handle
VIDIOC_S_FREQUENCY:
xc2028 0-0061: Device is Xceive 3028 version 1.0, firmware version 2.7
xc2028 0-0061: divisor= 00 00 14 d0 (freq=83.250)
xc2028 0-0061: Putting xc2028/3028 into poweroff mode.
xc2028 0-0061: Printing sleep stack trace:
Pid: 10936, comm: mplayer Tainted: P M 2.6.27.8 #1
Call Trace:
[<ffffffffa0b759ea>] xc2028_sleep+0x89/0x1ab [tuner_xc2028]
[<ffffffffa0b48fb9>] tuner_s_frequency+0xf5/0x165 [tuner]
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Devin Heitmueller <dheitmueller@linuxtv.org>
Fix a NULL pointer dereference that would occur if the video decoder tied to
the em28xx supports the VIDIOC_INT_RESET call (for example: the cx25840 driver)
Priority: high
Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Changes/fixes on em28xx dev->lock:
- em28xx_init_dev() were unlocking without a previous lock;
- some read ioctls need to lock after the removal of KBL, since a write
may be happening at the same time an ioctl is reading;
- keep the device locked during all device initialization;
- lock/unlock while reading/writing registers.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
vidioc_try_fmt_vid_cap() just checks if a given resolution is supported.
It doesn't touch on struct em28xx device descriptor. so, there's no need
to lock.
While there, use unlikely() for those values that aren't likely to
occur.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
em28xx devices generally get hot when xc3028 tuner is powered on. This
patch solves this by turning power off when the device is not used, at the
expense of having a higher load time, when calling a TV application.
Since firmware load happens on 1 or 2 seconds on most devices, this is not a pain.
Also, it helps to save the planet by saving some power :)
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Print manufacturer/product info from USB device and also card entry.
From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Prints usb speed used by em28xx interface. While there, fixes USB ID's
endiannes.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Several chips may be turned off when the device is not used, like audio,
video and dvb demods. This patch adds a gpio callback at the core
structs to allow turning off such devices.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Replaces all occurrences of em28xx_write_regs_req() and em28xx_write_reg()
used to setup register names by em28xx_write_reg().
Also, documents the register names that are known.
This patch were generated by this small perl script:
my %reg_map = (
# Register table - the same as defined on parse_em28xx.pl script
);
while (<>) {
if (m/(.*)em28xx_write_regs_req\(dev\,\s*0x00\,\s*(.*)\,\s*\"\\x(..)\",\s*1\)\;(.*)/) {
my $reg = $2;
my $val = $3;
$val =~ tr/A-f/a-f/;
$reg = $reg_map{$reg} if defined($reg_map{$reg});
printf "$1em28xx_write_reg(dev, %s, 0x%s);$4\n", $reg, $val;
} elsif (m/(.*)em28xx_write_regs\(dev\,\s*(.*)\,\s*\"\\x(..)\",\s*1\)\;(.*)/) {
my $reg = $2;
my $val = $3;
$val =~ tr/A-f/a-f/;
$reg = $reg_map{$reg} if defined($reg_map{$reg});
printf "$1em28xx_write_reg(dev, %s, 0x%s);$4\n", $reg, $val;
} else {
print $_;
}
}
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Now, the first message states board names. Also, removed printing the alternate
settings by default. I2C messages are now clearer.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Several fields are duplicated on both structs. Let's just copy em28xx_board instead.
A later cleanup could just copy the fields that are changed, in order to keep em28xx_board
const.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Label fail_unreg is no longer used.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
On some em28xx devices, there's an unused interface. This is printed on
the logs as an error. We can just ignore that interface.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Some devices use more than one AC97 outputs. This patch allows such
devices to properly work.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Some boards use different AC97 setups for output. This patch adds the
capability of specifying the output to be used. Currently, only one
output is selected, but the better is to allow user to select it via a
mixer, on alsa driver.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Newer versions of hald tries to open it to call QUERYCAP.
Due to the lack of a proper locking, it is possible to open the device
before it finishes initialization.
This patch adds a lock to avoid this risk, and to protect the list of
em28xx devices.
While here, remove the uneeded BKL lock.
Priority: high
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch properly implements audio handling on em28xx. Before this
patch, it was assumed that every device has an Empia 202 audio chip.
However, this is not true.
After this patch, specific AC97 chipset setup and configurations can be
done.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Devin Heitmueller <devin.heitmueller@gmail.com>
we have AC97 audio, I2S audio, or no audio support at all.
Thanks for Ray Lu from Empia for providing the em2860/em2880 datasheet.
Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Now that we have a polling task for IR, there's a race condition, since
IR can be polling while other operations are being doing. Also, we are
now sharing the same urb_buf for both read and write control urb
operations. So, we need a mutex.
Thanks to Davin Heitmueller <devin.heitmueller@gmail.com> for warning me.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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