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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Andy Walls <awalls@radix.net>
cx18: Have CX23418 release buffers at end of capture. The CX23418 reuses task
handles so we need to have it release the buffers associated with a task handle
at the end of a capture. If we don't, buffer ids used for one type of stream
in the driver (MPEG, TS, PCM), could be used for another type of stream by the
CX23418, if a previously used handle is assigned to a different type of stream.
The driver would drop valid buffers when this happened.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Fix cx18_find_handle() and add error checking. cx18_find_handle() did
not find a good task handle and would use the invalid task handle under common
conditions. Added a define for the invalid task handle and added error checking
as well.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Convert cx18_queue buffers member to atomic_t. This allows safe
concurrent access to check if a queue has data without having to acquire the
queue spinlock.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Remove redundant struct cx18_queue length member. It can be trivially
computed from queue->buffers * stream->buf_size, if ever really needed.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: get rid of ununsed buffers stolen field. It's an unused holdover
from ivtv.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Andy Walls <awalls@radix.net>
cx18: Simplify queue flush logic to prevent oops in cx18_flush_queues().
If accounting of a queue is in error, logic borrowed from ivtv will cause
an oops when flushing the queues for a stream. This change greatly
simplifies the queue flush logic, and sets the queue back to sane
defaults on a flush.
Priority: high
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Fixed a lot of sparse warnings: mostly warnings about shadowed variables
and signed/unsigned mismatches.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Laurent Pinchart <laurent.pinchart@skynet.be>
When a suspended device has been reset instead of being resumed, USB core
calls the reset_resume method if available instead of unbinding and rebinding
the device.
This patch implements reset_resume by reusing the current resume
implementation and simplifies the resume method by skipping the controls
restore stage. Resuming from autosuspend should be faster.
Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Dean Anderson <dean@sensoray.com>
Fix for reloading firmware when removing and reloading driver
Handshaking for firmware loading and changing modes.
Removes the restriction of one user per channel at a time.
JPEG capture mode added.
Signed-off-by: Dean Anderson <dean@sensoray.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
This patch fixes several small issues at vivi register routines:
1) minor and n_devs should be unsigned;
2) n_devs = 0 were not properly handled;
3) if n_devs specify a high number, the driver would just roll back and
won't register any device. The proper behaviour is to keep all succeded
devices registered;
4) both n_devs and minor were using 0 as permissions. Better to have
them with 0444.
With the current patch, if n_devs specify a very large value, it will
register all possible devices. For example, on a machine without any
other V4L drivers loaded, with this patch, we will have something like:
vivi: V4L2 device registered as /dev/video0
vivi: V4L2 device registered as /dev/video1
vivi: V4L2 device registered as /dev/video2
...
vivi: V4L2 device registered as /dev/video31
video_register_device_index: get_index failed
Video Technology Magazine Virtual Video Capture Board ver 0.5.0 successfully loaded.
5) The number of allocated devices on success is now kept at n_devs:
$ cat /sys/module/vivi/parameters/n_devs
32
Priority: high
Thanks to Henne <henne@nachtwindheim.de> for pointing that there were
some issues at vivi.
CC: Henne <henne@nachtwindheim.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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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: Hans Verkuil <hverkuil@xs4all.nl>
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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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: Henrik Kretzschmar <henne@nachtwindheim.de>
Better check the video_device pointer before using it.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Henrik Kretzschmar <henne@nachtwindheim.de>
The return vaule of the probe function should return -ENOMEM instead
of -EBUSY if video_device_alloc() fails.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Harvey Harrison <harvey.harrison@gmail.com>
___swab32 is an internal detail of the implementation.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-By: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Julia Lawall <julia@diku.dk>
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) /
(d)) but is perhaps more readable.
An extract of the semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@haskernel@
@@
@depends on haskernel@
expression n,d;
@@
(
- (n + d - 1) / d
+ DIV_ROUND_UP(n,d)
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- (n + (d - 1)) / d
+ DIV_ROUND_UP(n,d)
)
@depends on haskernel@
expression n,d;
@@
- DIV_ROUND_UP((n),d)
+ DIV_ROUND_UP(n,d)
@depends on haskernel@
expression n,d;
@@
- DIV_ROUND_UP(n,(d))
+ DIV_ROUND_UP(n,d)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Rene Herman <rene.herman@keyaccess.nl>
On 10-08-08 23:37, Alan Cox wrote:
>
> Would probably make the printk "pms: not enabled, use pms.enable=1 to
> probe"
>
> So you know
> a) What is wittering about not being probed
> b) How to undo it.
>
> But thats trivia really.
Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Rene Herman <rene.herman@keyaccess.nl>
The old Mediavision Pro Movie Studio legacy ISA V4L1 driver was found to
hang the boot during Ingo Molnar's testing of randconfig kernels. Have it
require a "pms.enable=1" kernel parameter to enable the driver when
builtin which avoids such problems.
This is a deprecated and, very likely, unused driver. Nothing changes
modular behaviour moreover.
Signed-off-by: Rene Herman <rene.herman@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Simon Arlott <simon@fire.lp0.eu>
If saa7134_init is run before v4l2_i2c_drv_init (tuner), then
saa7134_board_init2 will try to set the tuner type for devices that don't
exist yet. This moves tuner to before all of the device-specific drivers
so that it's loaded early enough on boot.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Hans de Goede <j.w.r.degoede@hhs.nl>
This patch adds a V4L2_CAP_SENSOR_UPSIDE_DOWN flag to the capabilities flags,
and sets this flag for the Philips SPC200NC cam (which has its sensor installed
upside down). The same flag is also needed and added for the Philips SPC300NC.
Together with a patch to libv4l which adds flipping the image in software this
fixes the upside down display with the SPC200NC cam.
Signed-of-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Priority: high
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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From: Jean-Francois Moine <moinejf@free.fr>
- return -EINVAL when control not supported.
- start the private controls at V4L2_CID_PRIVATE_BASE.
Priority: normal
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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From: Jean-Francois Moine <moinejf@free.fr>
Priority: high
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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From: Jean-Francois Moine <moinejf@free.fr>
Priority: high
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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From: Jean-Francois Moine <moinejf@free.fr>
Priority: high
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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From: Jean-Francois Moine <moinejf@free.fr>
Priority: high
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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From: Jean-Francois Moine <moinejf@free.fr>
Priority: high
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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From: Jean-Francois Moine <moinejf@free.fr>
Priority: high
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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From: Antoine Jacquet <royale@zerezo.com>
Priority: normal
Signed-off-by: Antoine Jacquet <royale@zerezo.com>
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From: Antoine Jacquet <royale@zerezo.com>
Count the users and do not use video_exclusive_open() anymore.
Priority: normal
Signed-off-by: Antoine Jacquet <royale@zerezo.com>
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From: Antoine Jacquet <royale@zerezo.com>
Remove the Big Kernel Lock from zr364xx driver after pushdown.
Now using an internal locking mecanism on open().
Priority: normal
Signed-off-by: Antoine Jacquet <royale@zerezo.com>
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From: Jean-Francois Moine <moinejf@free.fr>
Patch adapted from a gspca v1 patch by Thomas Kaiser.
Priority: high
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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From: Jean-Francois Moine <moinejf@free.fr>
Priority: high
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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From: Jean-Francois Moine <moinejf@free.fr>
Priority: high
Signed-off-by: Jean-Francois Moine <moinejf@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: Hans Verkuil <hverkuil@xs4all.nl>
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
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From: Andy Walls <awalls@radix.net>
cx18: Add missing lock for when the irq handler manipulates the queues. This
was a potential source of stream queue corruption. Also changed the name of
cx18_queue_find_buf() to cx18_queue_get_buf_irq().
Priority: high
Signed-off-by: Andy Walls <awalls@radix.net>
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From: Hans Verkuil <hverkuil@xs4all.nl>
This driver is for VERY old i2c-over-parallel port teletext receiver
boxes. Rather then spending effort on converting this driver to V4L2,
and since it is extremely unlikely that anyone still uses one of these
devices, it was decided to drop it (after discussing this as well with
the original author, Phil Blundell).
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Phil Blundell <philb@gnu.org>
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From: Hans Verkuil <hverkuil@xs4all.nl>
Old driver for the dpc7146 demonstration board that is no longer
relevant. The last time this was tested on actual hardware was
probably around 2002. Since this is a driver for a demonstration
board the decision was made (after discussing this with the original
author, Michael Hunold) to remove it rather than spending a
lot of effort continually updating this driver to stay in sync
with the latest internal V4L2 or I2C API.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Michael Hunold <hunold@linuxtv.org>
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From: Jean-Francois Moine <moinejf@free.fr>
Priority: high
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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From: Jean-Francois Moine <moinejf@free.fr>
Priority: normal
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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From: Jean-Francois Moine <moinejf@free.fr>
Priority: high
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
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