changes:
1. wrap some lines that are longer than 80 characters.
2. remove local function prototype declarations which do not
need.
3. replace TAB character with a space character in function
comments.
Signed-off-by: Du, Changbin <changbin.du@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
For some reason, when the lirc daemon learns that a usb remote control
has been unplugged, it wants to read the sysfs attributes of the
disappearing device. This is useful for uncovering transient
inconsistencies, but less so for keeping the system running when such
inconsistencies exist.
Under some circumstances (like every time I unplug my dvb stick from
my laptop), lirc catches an rc_dev whose raw event handler has been
removed (presumably by ir_raw_event_unregister), and proceeds to
interrogate the raw protocols supported by the NULL pointer.
This patch avoids the NULL dereference, and ignores the issue of how
this state of affairs came about in the first place.
Version 2 incorporates changes recommended by Mauro Carvalho Chehab
(-ENODEV instead of -EINVAL, and a signed-off-by).
Signed-off-by: Douglas Bagnall <douglas@paradise.net.nz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It is possible that video_put() releases video_device struct,
provoking a panic when debug printk wants to get video_device node name.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch will always set the field to INTERLACED (this fixes a bug were a driver should
never return FIELD_ANY), and will default to YUYV pixelformat if an unknown pixelformat
was specified.
This way S/TRY_FMT will always return a valid format struct.
Regards,
Hans
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Some parts of the C language are subtle and evil. This is one example.
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=44041
Reported-by: dcb314@hotmail.com
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Without this rev2 ends up behaving as rev3
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=44081
Reported-by: dcb314@hotmail.com
Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
We need to do a mutex_unlock(&priv->lock) before returning.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
fix check for s_dv_preset function pointer to be NULL.
return -EINVAL if function pointer is NULL.
Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
We intended to do a compare here, not an assignment.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Remove the pointless video_nr++. It doesn't do anything useful and it has
the unexpected side-effect of changing the video_nr module option, so
cat /sys/module/vivi/parameters/video_nr gives a different value back
then what was specified with modprobe.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The mask was wrong resulting in band 0 and 1 always ending up as band 0
in the register.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The current RDS code suffered from bit rot. Clean it up and make it work again.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- add control framework
- use core locking
- use V4L2_TUNER_CAP_LOW
- remove volume support: there is no hardware volume control
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This adds the usual core support code for this new ioctl.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
tvp5150_read() returns negative error codes so this needs to be an int
for the error handling to work.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Testing with a firmware version 12 usb radio stick has shown version 12
to work fine too.
Reported-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
[mchehab@redhat.com: fix checkpatch.pl ERROR:
Macros with complex values should be enclosed in parenthesis]
Signed-off-by: Federico Vaga <federico.vaga@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Copying structs by assignment is type safe.
Plus, is shorter and easier to read.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Copying structs by assignment is type safe.
Plus, is shorter and easier to read.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Copying structs by assignment is type safe.
Plus, is shorter and easier to read.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Copying structs by assignment is type safe.
Plus, is shorter and easier to read.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This function has no users, so it's safe to remove it.
Tested by compilation only.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The field 'struct i2c_algo_bit_data i2c_algo' is wrongly confused with
struct i2c_algorithm. Moreover, i2c_algo field is not used since
i2c is registered using i2c_add_adpater() and not i2c_bit_add_bus().
Therefore, it's safe to remove it.
Tested by compilation only.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The field 'struct i2c_algo_bit_data i2c_algo' is wrongly confused with
struct i2c_algorithm. Moreover, i2c_algo field is not used since
i2c is registered using i2c_add_adpater() and not i2c_bit_add_bus().
Therefore, it's safe to remove it.
Tested by compilation only.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The field 'struct i2c_algo_bit_data i2c_algo' is wrongly confused with
struct i2c_algorithm. Moreover, i2c_algo field is not used since
i2c is registered using i2c_add_adpater() and not i2c_bit_add_bus().
Therefore, it's safe to remove it.
Tested by compilation only.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The field 'struct i2c_algo_bit_data i2c_algo' is wrongly confused with
struct i2c_algorithm. Moreover, i2c_algo field is not used since
i2c is registered using i2c_add_adpater() and not i2c_bit_add_bus().
Therefore, it's safe to remove it.
Tested by compilation only.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch adds new V4L2_CAP_VIDEO_M2M and V4L2_CAP_VIDEO_M2M_MPLANE
capability flags that are intended to be used for memory-to-memory (M2M)
devices, instead of ORed V4L2_CAP_VIDEO_CAPTURE and V4L2_CAP_VIDEO_OUTPUT.
V4L2_CAP_VIDEO_M2M flag is added at the drivers, CAPTURE and OUTPUT
capability flags are left untouched and will be removed in future,
after a transition period required for existing applications to be
adapted to check only for V4L2_CAP_VIDEO_M2M.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Kamil Debski <k.debski@samsung.com>
Acked-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The V4L2_CID_ISO_SENSITIVITY control menu values should be
standard ISO values multiplied by 1000. Multiply all menu
items by 1000 so ISO is properly reported as 50...3200 range.
This applies to kernels 3.5+.
Cc: stable@vger.kernel.org
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch adds locking for open(), close(), poll() and mmap()
file operations in the driver as a follow up to the changes
done in commit 5126f2590bee412e3053de851cb07f531
"v4l2-dev: add flag to have the core lock all file operations".
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
G_PARM should only be enabled if:
- vidioc_g_parm is present
- or: it is a video node and vidioc_g_std or tvnorms are set.
Without this additional check v4l2-compliance would complain about
being able to use g_parm when it didn't expect it.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
v4l2_m2m_poll didn't support events, but that's essential if you want to
be able to use control events for example.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The g_mbus_fmt operation only needs to return the current mbus frame
format and doesn't need to configure the hardware to do so. Fix it to
avoid requiring the chip to be powered on when calling the operation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The g_mbus_fmt operation only needs to return the current mbus frame
format and doesn't need to configure the hardware to do so. Fix it to
avoid requiring the chip to be powered on when calling the operation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The g_mbus_fmt operation only needs to return the current mbus frame
format and doesn't need to configure the hardware to do so. Fix it to
avoid requiring the chip to be powered on when calling the operation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There will be no soc_camera_device instance with a soc-camera device is
used with a non soc-camera host, so we won't be able to pass the
soc_camera_device fake platform device to board code. Pass the physical
device instead.
The argument is currently not used by any board file so this is safe.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
