This is just a cleaning patch to produce more useful
debug messages.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Plain '-1' is not very good error code. Use more suitable error
code definitions.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Use .get_if_frequency() as all used tuner drivers
(mt2060/qt1010/mxl5005s) supports it.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It is not good idea to return error for missing callback
handler as whole callback as optional and could be missing
by intentionally.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It is first step closer to support multiple tuners.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch add the toggle bit to the tt3650_rc_query function of the ttusb2
driver.
Signed-off-by: Jose Alberto Reguero <jareguero@telefonica.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
commit da35de640 broke compilation, as it reverted the name of the
usb card free function.
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
If we fail to set up the capture device we go through negative indexes and
badness happens. Add the missing test.
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=44551
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It needs the e4000 tuner driver.
Signed-off-by: Philipp Dreimann <philipp@dreimann.net>
Acked-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It is not allowed to call usb_clear_halt() after urbs are submitted.
That causes oops sometimes. Move whole streaming_ctrl() logic to
power_ctrl() in order to avoid wrong usb_clear_halt() use. Also,
configuring streaming endpoint in streaming_ctrl() sounds like a
little bit wrong as it is aimed for control stream gate.
Reported-by: Hin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Since ifnum is not used anywhere it is safe to remove it.
This was spotted by Hans's media_tree daily build.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
struct vb2_queue is allocated through kzalloc as part of a larger struct,
there's no need to clear it.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
After qt1010 change that device seems to survive from reset resume.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This is workaround / partial fix.
rtl2832u_power_ctrl() and rtl2832u_frontend_attach() needs to
be go through carefully and fix properly. There is clearly
some logical errors when handling power-management ang GPIOs...
Signed-off-by: Antti Palosaari <crope@iki.fi>
Cc: Thomas Mair <thomas.mair86@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Stream did not start anymore after stream was stopped once.
Following error can be seen, xhci_hcd
WARN Set TR Deq Ptr cmd failed due to incorrect slot or ep state.
usb_clear_halt for streaming endpoint helps.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The uvcvideo driver now supports USERPTR, and isn't limited to YUYV and
MJPEG anymore.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There is no need to call the image quality adjustment functions in sd_start.
The gspca main driver calls v4l2_ctrl_handler_setup in gspca_init_transfer,
which already applies all image control values.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The current white balance temperature default value is 4, which is much too small (possible values are 0-255).
Improve the picture quality by increasing the default value to 55, which is the default value used by the Windows driver.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The Windows driver uses page 0 register 0xb6 for sharpness adjustment.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix a regression from kernel 3.4 which has been introduced with the conversion of the gspca driver to the v4l2 control framework.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Cc: stable@kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1) We always re-create the input-urb on resume, so we must also always
destroy it on suspend to avoid leaking it
2) If we're going to do an init_transfer, then that will destroy the urb
before starting the stream (nop if there is none), and (re-)create it
once the stream is started. So there is little use in creating it, if
we're going to do an init_transfer immediately afterward
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
gspca_main: init_transfer does not do anything between calling sd_start
(which starts the workqueue) and releasing the usb_lock, so this
synchronization is a nop, remove it.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
In commit a3d6e8cc0e gspca_dev->dev is set
to NULL on disconnect, before calling stop0. The plan was to get rid of
gspca_dev->present and instead simply check for gspca_dev->dev everywhere
where we were checking for present. This should be race free since all users
of gspca_dev->dev hold the usb_lock, or so I thought.
But I was wrong, drivers which use a work-queue + synchronous bulk transfers
to get the video data don't hold the usb_lock while doing so, their stop0
callbacks stop the workqueue, so they won't be using gspca_dev->dev anymore
after the stop0 call, but they might be dereferincing it before, so we should
not set gspca_dev->dev to NULL on disconnect before calling stop0.
This also means that the workqueue functions in these drivers cannot
use gspca_dev->dev to check if they need to stop because of disconnection,
so we will need to keep gspca_dev->present around, and set that to 0 on
disconnect, before calling stop0. Unfortunately as part of the plan to remove
gspca_dev->present, these workqueues where already moved over to checking
for gspca_dev->dev instead of gspca_dev->present as part of commit
254902b01d, so this patch also reverts those
parts of that commit.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Convert a nonnegative error return code to a negative one, as returned
elsewhere in the function.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch changes some signed integers to unsigned because
they are not intended for negative values and sparse
is making noise about it.
Sparse gives eight of these errors:
drivers/media/usb/gspca/ov519.c:144:29: error: dubious one-bit signed bitfield
Signed-off-by: Emil Goode <emilgoode@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
struct vb2_queue is allocated through kzalloc as part of a larger struct,
there's no need to clear it.
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This lock was being taken using two different names
(pointers) in the same function.
Both names refer to the same lock,
so this wasn't an error; but it looked very strange.
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Those files were left from dvb-usb-v2 development as I have made
mistake during rebase operation.
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This symbol got removed by menu reorganization; just depending on
DVB_CORE is enough.
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Merge tag 'v3.6-rc3' into staging/for_v3.7
Linux 3.6-rc3
* tag 'v3.6-rc3': (764 commits)
Linux 3.6-rc3
task_work: add a scheduling point in task_work_run()
fs: fix fs/namei.c kernel-doc warnings
eventpoll: use-after-possible-free in epoll_create1()
vfio: grab vfio_device reference *before* exposing the sucker via fd_install()
vfio: get rid of vfio_device_put()/vfio_group_get_device* races
vfio: get rid of open-coding kref_put_mutex
introduce kref_put_mutex()
vfio: don't dereference after kfree...
fbcon: fix race condition between console lock and cursor timer (v1.1)
mm: compaction: Abort async compaction if locks are contended or taking too long
mm: have order > 0 compaction start near a pageblock with free pages
rapidio/tsi721: fix unused variable compiler warning
rapidio/tsi721: fix inbound doorbell interrupt handling
drivers/rtc/rtc-rs5c348.c: fix hour decoding in 12-hour mode
mm: correct page->pfmemalloc to fix deactivate_slab regression
drivers/rtc/rtc-pcf2123.c: initialize dynamic sysfs attributes
mm/compaction.c: fix deferring compaction mistake
drivers/misc/sgi-xp/xpc_uv.c: SGI XPC fails to load when cpu 0 is out of IRQ resources
string: do not export memweight() to userspace
...
Ezequiel Garcia