The new control mechanism uses dynamic control values in the subdriver
descriptor. It simplifies standard control handling.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Take the ctrl_mutex mutex before touching control information in those
functions.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
XU control information is supposed to be entirely discoverable using
standard UVC queries. As some devices report bogus information (such as
reporting a read-only control as being read-write), add a fixup table
for XU controls.
This table can also be used to selectively disable requests supposed to
be supported by all XU controls (GET_MIN, GET_MAX, GET_DEF, GET_RES) but
not correctly (or at all) supported by the device.
The table currently disables GET_CUR on the Logitech motor control XU
pan/tilt controls.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
XU controls initialization requires querying the device for control
information. As some buggy UVC devices will crash when queried
repeatedly in a tight loop, delay XU controls initialization until first
use.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Now that control information structures are not shared between control
instances, embed a uvc_control_info instance inside the uvc_control
structure instead of storing a pointer.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch removes the sysadmin requirements for UVCIOC_CTRL_MAP (and the stub
implementation of UVCIOC_CTRL_ADD). This requirement no longer makes sense with
the new XU control access mechanisms since XU controls can be accessed without
adding control mappings first.
A maximum number (currently 1024) of control mappings per device is enforced to
avoid excess memory consumption caused by careless user space applications.
Signed-off-by: Martin Rubli <martin_rubli@logitech.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Devices advertise XU controls using a bitmask, in which each bit
corresponds to a control. The control selector, used to query the
control, isn't available in the USB descriptors.
All known UVC devices use control selectors equal to the control bit
index plus one. Hardcode that relationship in the driver, making the
UVCIOC_CTRL_ADD ioctl obsolete. All necessary information about XU
controls can be obtained by the driver at enumeration time.
The UVCIOC_CTRL_ADD ioctl is still supported for compatibility reasons,
but now always returns -EEXIST.
Finally, control mappings are now on a per-device basis and no longer
global.
As this changes the userspace interface, bump the driver version number
to 1.0.0 (it was about time).
Signed-off-by: Martin Rubli <martin_rubli@logitech.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Increase the sequence number of the v4l2_buffer structure regardless of
any buffer states, so that discontinuous sequence numbers allow
applications to detect lost video frames.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The bandwidth estimate computed with the FIX_BANDIWDTH quirk is too low
for many cameras. Don't use maximum packet sizes lower than 1024 bytes
to try and work around the problem. According to measurements done on
two different camera models, the value is high enough to get most
resolutions working while not preventing two simultaneous VGA streams at
15 fps.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Instead of printing the query hex value in error messages, print its
name to make the messages more readable.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
They're not modified by the function, make them const.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The Hercules Dualpix Exchange (06f8:3005) camera expose an absolute zoom
that is not implemented. Blacklist it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Don't hold the lock before unregistering the device, since when the
device is unregistered the datastruct containing the lock may be freed
(if the refcount went to 0).
Also fixed the framework documentation that erroneously suggested the
wrong locking order as well.
Reported-by: David Ellingsworth <david@identd.dyndns.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: David Ellingsworth <david@identd.dyndns.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Use new RC core instead of old legacy RC implementation.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Imported from af9015.h. Initial keytable was from
Jose Alberto Reguero <jareguero@telefonica.net> and
Felipe Morales Moreno <felipe.morales.moreno@gmail.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Digittrade DVB-T USB Stick remote controller.
Imported from af9015.h. Initial keytable was from Alain Kalker <miki@dds.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Imported from af9015.h.
Initial keytable was from Marc Schneider <macke@macke.org>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
MSI DIGIVOX mini III remote controller. Uses NEC extended 0x61d6.
This remote seems to be same as rc-kworld-315u.c. Anyhow, add new remote
since rc-kworld-315u.c lacks NEC extended address byte.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Variable is don't care in that case. No need to set value.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The AVerTV Red HD+ (A850T) is basically the same as the existing
AVerTV Volar Black HD (A850), but is specific to the french market.
The A850T identifies itself as a A850, but has its own PID. It even
suffers from the same EEPROM deficiencies.
This is based off a collection of information gathered from the
french support forums for Ubuntu, which I tried to properly format
into this patch:
http://forum.ubuntu-fr.org/viewtopic.php?pid=3322825
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Demod + tuner specific RF AGC and IF AGC limit values are read from demod
memory in every signal strength query. Cache those to reduce I2C traffic.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Precalculate coefficients register values. This reduces text size around 300 bytes.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Instead of doing its own lock, use core-assisted one. As a bonus, it
will do the proper unlock during queue wait events. This fixes a
long-standing bug where softwares like tvtime would hang if you try to
use cx231xx-alsa.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This file came originally from cx23885 driver. Some functions aren't
used. Now that they are declared as static, we have those errors:
drivers/media/video/cx231xx/cx231xx-417.c:615: warning: ‘mc417_gpio_set’ defined but not used
drivers/media/video/cx231xx/cx231xx-417.c:625: warning: ‘mc417_gpio_clear’ defined but not used
drivers/media/video/cx231xx/cx231xx-417.c:635: warning: ‘mc417_gpio_enable’ defined but not used
As they're not used, just remove them. If needed, they can be restored from
the git logs or from the cx23885 driver.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/video/cx23885/built-in.o: In function `mc417_memory_write':
/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cx23885-417.c:482: multiple definition of `mc417_memory_write'
drivers/media/video/cx231xx/built-in.o:/home/v4l/v4l/patchwork/drivers/media/video/cx231xx/cx231xx-417.c:477: first defined here
drivers/media/video/cx23885/built-in.o: In function `mc417_gpio_set':
/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cx23885-417.c:636: multiple definition of `mc417_gpio_set'
drivers/media/video/cx231xx/built-in.o:/home/v4l/v4l/patchwork/drivers/media/video/cx231xx/cx231xx-417.c:615: first defined here
drivers/media/video/cx23885/built-in.o: In function `mc417_gpio_enable':
/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cx23885-417.c:656: multiple definition of `mc417_gpio_enable'
drivers/media/video/cx231xx/built-in.o:/home/v4l/v4l/patchwork/drivers/media/video/cx231xx/cx231xx-417.c:635: first defined here
drivers/media/video/cx23885/built-in.o: In function `mc417_memory_read':
/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cx23885-417.c:546: multiple definition of `mc417_memory_read'
drivers/media/video/cx231xx/built-in.o:/home/v4l/v4l/patchwork/drivers/media/video/cx231xx/cx231xx-417.c:541: first defined here
drivers/media/video/cx23885/built-in.o: In function `mc417_gpio_clear':
/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cx23885-417.c:646: multiple definition of `mc417_gpio_clear'
drivers/media/video/cx231xx/built-in.o:/home/v4l/v4l/patchwork/drivers/media/video/cx231xx/cx231xx-417.c:625: first defined here
drivers/media/video/cx23885/built-in.o: In function `mc417_register_read':
/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cx23885-417.c:388: multiple definition of `mc417_register_read'
drivers/media/video/cx231xx/built-in.o:/home/v4l/v4l/patchwork/drivers/media/video/cx231xx/cx231xx-417.c:401: first defined here
drivers/media/video/cx23885/built-in.o: In function `mc417_register_write':
/home/v4l/v4l/patchwork/drivers/media/video/cx23885/cx23885-417.c:324: multiple definition of `mc417_register_write'
drivers/media/video/cx231xx/built-in.o:/home/v4l/v4l/patchwork/drivers/media/video/cx231xx/cx231xx-417.c:343: first defined here
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
gcc didn't like to have i++ inside a complex operation:
drivers/media/video/cx231xx/cx231xx-417.c: In function ‘cx231xx_load_firmware’:
drivers/media/video/cx231xx/cx231xx-417.c:1059: warning: operation on ‘i’ may be undefined
drivers/media/video/cx231xx/cx231xx-417.c:1061: warning: operation on ‘i’ may be undefined
drivers/media/video/cx231xx/cx231xx-417.c:1063: warning: operation on ‘i’ may be undefined
Btw, I agree with gcc, as we're using i and i++ at the same operation and,
depending on how optimization may occur, it may produce a wrong code.
While here, fix CodingStyle issues on the changed code.
Acked-by: Sri Deevi <Srinivasa.Deevi@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The patches received from the vendor contained a lot of CodingStyle
issues. Cleans the style issues reported by checkpatch.pl on
those drivers.
It is better to do such style fixes when merging a big set of
changes than latter. Of course, the better is to receive patches
already cleaned ;)
Acked-by: Sri Deevi <Srinivasa.Deevi@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
By default, tda18271 tries to optimize I2C bus by updating all registers
at the same time. Unfortunately, some devices doesn't support it.
The current logic has a problem when small_i2c is equal to 8, since there
are some transfers using 11 + 1 bytes.
Fix the problem by enforcing the max size at the right place, and allows
reducing it to max = 3 + 1.
Acked-by: Michael Krufky <mkrufky@kernellabs.com>
Acked-by: Sri Deevi <Srinivasa.Deevi@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Improves the logic, for it to be clearer and to avoid having
board-dependent config there.
Acked-by: Sri Deevi <Srinivasa.Deevi@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The driver has a field to indicate what bus is used by tuner and
by demod. However, this field were never used. On Pixelview,
it uses I2C 2 for tuner, instead of I2C 1.
drivers/media/video/cx231xx/cx231xx-cards.c
Acked-by: Sri Deevi <Srinivasa.Deevi@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
