As reported by Randy Dunlap:
When CONFIG_SND=m and CONFIG_SND_AC97_CODEC=m and
CONFIG_VIDEO_STK1160=y
CONFIG_VIDEO_STK1160_AC97=y
drivers/built-in.o: In function `stk1160_ac97_register':
(.text+0x122706): undefined reference to `snd_card_create'
drivers/built-in.o: In function `stk1160_ac97_register':
(.text+0x1227b2): undefined reference to `snd_ac97_bus'
drivers/built-in.o: In function `stk1160_ac97_register':
(.text+0x1227cd): undefined reference to `snd_card_free'
drivers/built-in.o: In function `stk1160_ac97_register':
(.text+0x12281b): undefined reference to `snd_ac97_mixer'
drivers/built-in.o: In function `stk1160_ac97_register':
(.text+0x122832): undefined reference to `snd_card_register'
drivers/built-in.o: In function `stk1160_ac97_unregister':
(.text+0x12285e): undefined reference to `snd_card_free'
Reported-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: NRandy Dunlap <rdunlap@infradead.org>
Acked-by: NEzequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Removes unnecessary query of buffer state.  The code already checks if stream is active or not.
Signed-off-by: NDean Anderson <linux-dev@sensoray.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This one must have missed the conversion "c003ab1b [media] rc-core:
add separate defines for protocol bitmaps and numbers".
Signed-off-by: NSean Young <sean@mess.org>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Set fmt.pix.priv to zero in vidioc_try_fmt_vid_cap.
Catched by v4l2-compliance.
Signed-off-by: NAlban Browaeys <prahal@yahoo.com>
[hans.verkuil@cisco.com: dropping unnecessary change to g_fmt_vid_cap]
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This commit adds an early check to vidioc_s_std() to detect if the
new and current standards are equal, and exit with success in that
case.
This is needed to prevent userspace applications that might attempt
to re-set the same standard from failing if that's done when streaming
has started.
Signed-off-by: NEzequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Remove the check as there's no reason to prevent the input from
being set when the device is streaming. This allows surveillance
applications (such as motion, zoneminder, etc.) to configure the
input while streaming.
Reported-by: NSergey 'Jin' Bostandzhyan <jin@mediatomb.cc>
Signed-off-by: NEzequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Remove including <linux/version.h> that don't need it.
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: NLubomir Rintel <lkundrak@v3.sk>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Alongside already existing Composite input.
Signed-off-by: NLubomir Rintel <lkundrak@v3.sk>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

check_firmware() makes sure firmware is in a device.
It returns zero on success and error code otherwise.
Also it sets down_firmware flag to 1 if downloading occurs.
The only caller poseidon_probe() checks down_firmware flag and
returns 0 without any initialization if it is set.
That looks very strange, so the patch removes down_firmware argument
of check_firmware() and returns error code if check_firmware() fails
in poseidon_probe().
Not tested on real hardware.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

All poseidon init functions properly return error codes,
but they are ignored by poseidon_probe(). The patch implements
handling of error cases.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

It is not allowed to build driver as a build-in when RC_CORE
(remote controller support) is build as a module.
randconfig build error with next-20130719, in drivers/media/usb
drivers/built-in.o: In function `dvb_usbv2_disconnect':
(.text+0x154b39): undefined reference to `rc_unregister_device'
drivers/built-in.o: In function `dvb_usbv2_init_work':
dvb_usb_core.c:(.text+0x155b2d): undefined reference to `rc_allocate_device'
dvb_usb_core.c:(.text+0x155c38): undefined reference to `rc_register_device'
dvb_usb_core.c:(.text+0x155c5b): undefined reference to `rc_free_device'
drivers/built-in.o: In function `anysee_rc_query':
anysee.c:(.text+0x157795): undefined reference to `rc_keydown'
Reported-by: NJim Davis <jim.epost@gmail.com>
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The uvcvideo driver lost its dependency on VIDEO_V4L2 during the big
media directory reorganization. Add it back.
Reported-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

If something goes wrong starting from i2c_add_adapter(),
ttusb->iso_urb[] and ttusb itself are not deallocated.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Reverse-engineered driver for cheapo video digitizer, made from observations of
Windows XP driver. The protocol is not yet completely understood, so far we
don't provide any controls, only support a single format out of three and don't
support the audio device.
Signed-off-by: NLubomir Rintel <lkundrak@v3.sk>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

1. usbvision->alt_max_pkt_size is not deallocated anywhere.
2. if allocation of usbvision->alt_max_pkt_size fails,
there is no proper deallocation of already acquired resources.
The patch adds kfree(usbvision->alt_max_pkt_size) to
usbvision_release() as soon as other deallocations happen there.
It calls usbvision_release() if allocation of
usbvision->alt_max_pkt_size fails as soon as usbvision_release()
is safe to work with incompletely initialized usbvision structure.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/usb/pvrusb2/pvrusb2-v4l2.c: In function 'pvr2_v4l2_dev_init':
drivers/media/usb/pvrusb2/pvrusb2-v4l2.c:1268:21: warning: variable 'usbdev' set but not used [-Wunused-but-set-variable]

This warning is due to changeset a28fbd04, with removed the
usage of usbdev inside pvr2_v4l2_dev_init().
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Mike Isely <isely@pobox.com>

Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Acked-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This driver did not yet support struct v4l2_device, so add it. This
make it possible to replace the deprecated parent field with the
v4l2_dev field, allowing the eventual removal of the parent field.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This function is no longer needed since it is now the responsibility of the
v4l2 core to check if the DBG_G/S_REGISTER and DBG_G_CHIP_INFO ioctls are
called for the bridge driver or not.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The GPIO register caching is the result of wrong assumptions and incomplete
knowledge about the GPIO registers and their functionality.
Today, we know that it is not needed.
It is also limited to a single register and therefore incomplete (newer chips
are using multiple registers).
Instead of extending the caching, get rid of it, because it has no real
benefits and just bloats/complicates the code.
Signed-off-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

- add definition for GPIO register 0x09 (reading/input)
- extend the information the chip variants that support GPIO registers 0x08/0x09
- rename EM28XX_R08_GPIO to EM2820_R08_GPIO_CTRL
Signed-off-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The em25xx/em276x/7x/8x provides 4 GPIO register sets,
each of them consisting of separate read and a write registers.
The same registers are also used by the em2874/174/84.
Signed-off-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove the silly redefines of pr_err/info/debug.
This improves readability and it also gets rid of a bunch of warnings when
compiling this driver for older kernels using the compatibility media_build
system.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

As suggested by Antti, this patch replaces:
https://patchwork.kernel.org/patch/2649861/
The buffer overflow is fixed by reading only the r820t ID register.
Signed-off-by: NGianluca Gennari <gennarone@gmail.com>
Acked-by: NAntti Palosaari <crope@iki.fi>
Reviewed-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NThomas Meyer <thomas@m3y3r.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

As USB/PCI/MEDIA_SUPPORT dependencies can be tristate, we can't
simply make the bool menu to be dependent on it. Everything below
the menu should also depend on it, otherwise, we risk to allow
building them with 'y', while only 'm' would be supported.

So, add an IF just before everything below, in order to avoid
such risks.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

current_norm use is deprecated because it is per-devicenode and if you
have more device nodes all dependent on the same video source, then this
no longer works. Just implement g_std instead.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Replace current_norm by g_std. Also initialize the standard to the more
common NTSC-M format (which is also what current_norm used).
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Register access to subdevices no longer needs bridge support for those
ioctls. The v4l2 core handles that these days.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Cc: Mike Isely <isely@isely.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The size field wasn't filled in.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Replace the V4L2_IDENT_* usage with tveeprom-specific defines. This header
is deprecated, so those defines shouldn't be used anymore.
The em28xx driver is the only one that uses the tveeprom audio_processor
field, so that has been updated to use the new tveeprom AUDPROC define.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove g_chip_ident and replace it with g_chip_info.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove g_chip_ident and replace it with g_chip_info.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

VIDIOC_DBG_G_CHIP_IDENT has been replaced by VIDIOC_DBG_G_CHIP_INFO. Remove
g_chip_ident support from bridge drivers since it is no longer needed.
This patch takes care of all the trivial cases.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Acked-by: NLad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: NScott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

get_video_info() should never return EFAULT, instead it should return
the low-level usb_control_msg() error. Add a valid field to the hdpvr_video_info
struct so the driver can easily check if a valid format was detected.
Whenever get_video_info is called and it returns an error (e.g. usb_control_msg
failed), then return that error to userspace as well.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove an unnecessary 'else' and invert a condition which makes the code
more readable.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>