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From: Trent Piepho <xyzzy@speakeasy.org>
If an ioctl is read-only then the driver fills in all the fields. Lots of
times drivers only care about some fields so it's best if video_ioctl2
takes care of zeroing out the entire structure before handing it to the
driver. This saves code in each driver to do it and driver authors often
forget.
The existing memset code in some of the read-only ioctl handlers
can be deleted.
Convert a case statement to a single if statement.
Deleted a debug line from ENUMAUDOUT that was copy-and-pasted to G_AUDOUT
by mistake.
Priority: normal
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
There are many RW ioctls() in v4l2 where userspace only supplies one or two
of the first fields in the structure passed to the ioctl. The driver then
fills in the rest of the fields.
Instead of copying the entire structure from userspace to the kernel we
only need to copy those fields that userspace is actually supposed to
supply.
What's more, the fields that are meant to be only be output from the driver
can be zeroed out in the videodev code, in case the driver doesn't fill
them all in. Many of the ioctl handlers in v4l2_ioctl do this already, but
my patch does this at one common point and so all the memsets for each
ioctl can be deleted.
For VIDIOC_G_SLICED_VBI_CAP, which has one input field ('type') and other
output-only fields, the input field is near the end of the structure
instead of at the beginning. So there is still a memset in it's ioctl
handler to zero out the beginning of the struct.
There were a couple mistakes with the existing code:
For VIDIOC_G_AUDIO the index field was preserved, but G_AUDIO is a read
only ioctl so nothing is copied from userspace to preserve.
For VIDIOC_G_FREQUENCY the tuner field was not preserved like it should
have been. This would be a problem if there was any hardware with more
than one tuner/modulator.
For VIDIOC_ENUM_FRAMESIZES and VIDIOC_ENUM_FRAMEINTERVALS, none of the
fields were preserved even though each ioctl has several field that are
supposed to be inputs to the driver! Obviously these ioctls don't get
used much. The index field is needed if the driver has multiple
discrete sizes/rates and other fields can be used too, e.g. if the size
depends on pixel format or frame rate depends on image size for
example.
Priority: normal
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
For sure a frontend doesn't need to include cx23885.h header.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Trent Piepho <xyzzy@speakeasy.org>
For VIDIOC_QUERYBUF only the first two fields, size and type, are used as
input. The rest can be filled in by the driver as output. Most drivers do
not actually use all the field and unused ones should be zeroed out. Some
drivers have code to do this and some drivers should but don't. So put
some zero out code in v4l2_ioctl so that all drivers using that system get
it.
The drivers that have zeroing code get that code removed.
Some drivers checked that the type field was valid, but v4l2_ioctl already
does this so those checks can be removed as well.
Priority: normal
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
In v2.6.19-rc6-118-g52bad64 struct work_struct was changed to be only for
non-delayed work and struct delayed_work was created for delayed work.
Instead of putting ifdefs in the drivers, we use compat.h to rename
delayed_work to work_struct on pre-2.6.20 kernels. This will only be a
problem if some driver decides to create identifiers named both work_struct
and delayed_work in the same scope. There is one driver that has something
named work_struct and none with anything named delayed_work, so I don't
think will be a problem for as long as this compat code sticks around.
Priority: normal
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
A recent patch added a forward declaration of cx88_core right before the
main definition of that structure, which is obviously unneeded.
Priority: normal
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
video_register_device_index() checks if it was passed a NULL video_device
pointer (which isn't allowed) _after_ it has already dereferenced it with
video_get_drvdata(vdev). The checks are clearly pointless and can be
removed, as the function would have crashed before reaching them if vdev
ever was NULL.
Priority: normal
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Igor M. Liplianin <liplianin@netup.ru>
Add support for NetUP Dual DVB-S2 CI card
The card based on cx23885 PCI-e bridge, CiMax SP2 Common Interface chips,
STM lnbh24 LNB power chip, stv6110 tuners and stv0900 demodulator.
http://www.linuxtv.org/wiki/index.php/NetUP_Dual_DVB_S2_CI
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
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From: Igor M. Liplianin <liplianin@netup.ru>
Add last piece of code to support ST STV0900 dual demodulator.
The IC consist of two dependent parts.
It may use single or dual mode.
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
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From: Igor M. Liplianin <liplianin@netup.ru>
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
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From: Igor M. Liplianin <liplianin@netup.ru>
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
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From: Igor M. Liplianin <liplianin@netup.ru>
The IC consist of two dependent parts.
It may use single or dual mode.
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
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From: Igor M. Liplianin <liplianin@netup.ru>
The controller consist of two independent parts.
Every part is similar to LNBP21, but has configurable i2c address.
It is used in NetUP Dual DVB-S2 CI card.
http://linuxtv.org/wiki/index.php/NetUP_Dual_DVB_S2_CI
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
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From: Igor M. Liplianin <liplianin@netup.ru>
The tuner is used in NetUP Dual DVB-S2 CI card.
http://linuxtv.org/wiki/index.php/NetUP_Dual_DVB_S2_CI
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
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From: Abylay Ospan <aospan@netup.ru>
Add CIMax2 Common Interface code for NetUP Dual DVB-S2 CI card.
SmarDTV CIMax(R) SP2 is Dual CableCARD, DVB Common Interface
and OpenCable Hardware Controller.
Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
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From: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
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From: Abylay Ospan <aospan@netup.ru>
Add init code for NetUP Dual DVB-S2 CI card
The card based on cx23885 PCI-e bridge, CiMax SP2 Common Interface chips,
STM lnbh24 LNB power chip, stv6110 tuners and stv0900 demodulator.
Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Those files were removed by some previous commit on -git
kernel-sync:
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Michael Krufky <mkrufky@linuxtv.org>
Fix the following build error:
drivers/media/dvb/siano/smsusb.o: In function `get_order':
include/asm-generic/page.h:10: multiple definition of `sms_dbg'
drivers/media/dvb/siano/sms1xxx.o:include/asm-generic/page.h:10: first defined here
drivers/media/dvb/siano/smsdvb.o: In function `get_order':
include/asm-generic/page.h:10: multiple definition of `sms_dbg'
drivers/media/dvb/siano/sms1xxx.o:include/asm-generic/page.h:10: first defined here
Thanks to Mauro Carvalho Chehab for his original patch to address this issue.
Priority: normal
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
kernel-sync:
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Several modules were converted to V4L2 API. Update their dependencies on Kconfig.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
During the patch merge, I've added a temporary fix for v4l2_ctrl_query_fill(),
just to avoid the tree breakage. Replace those for the proper values.
kernel-sync:
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
The same var were declared into three different modules:
drivers/media/dvb/siano/smsusb.o: In function `get_order':
/home/v4l/tokernel/wrk/devel/include/asm-generic/page.h:10: multiple definition of `sms_dbg'
drivers/media/dvb/siano/sms1xxx.o:/home/v4l/tokernel/wrk/devel/include/asm-generic/page.h:10: first defined here
drivers/media/dvb/siano/smsdvb.o: In function `get_order':
/home/v4l/tokernel/wrk/devel/include/asm-generic/page.h:10: multiple definition of `sms_dbg'
drivers/media/dvb/siano/sms1xxx.o:/home/v4l/tokernel/wrk/devel/include/asm-generic/page.h:10: first defined here
kernel-sync:
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Now, just a few modules are still dependent of this legacy header:
$ grep -l DECODER_ `find linux/drivers/media/ -name '*.[ch]' -exec grep -l video_decoder '{}' \;`
linux/drivers/media/video/v4l2-ioctl.c
linux/drivers/media/video/indycam.c
linux/drivers/media/video/saa7191.c
linux/drivers/media/video/vino.c
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Michael Krufky <mkrufky@linuxtv.org>
As pointed out by Mauro Chehab, we should always use EXPORT_SYMBOL_GPL
instead of EXPORT_SYMBOL wherever possible.
A message was posted to the linux-media mailing list about this, checking
with Uri Shkolnik of Siano Mobile Silicon if this is okay to convert.
As per Uri's response to this email, it is OK for us to make this conversion.
http://www.spinics.net/lists/linux-media/msg02200.html
Priority: normal
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Igor M. Liplianin <liplianin@netup.ru>
The driver infrared remote code part is altered to switch to a work queue.
Also ir_codes table moved to ir-common module for shared access.
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
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From: Igor M. Liplianin <liplianin@netup.ru>
The driver already has DMA buffer organized like ringbuffer,
so it is easy to switch to a work queue.
Length of ringbuffer can easily be increased, if someone need it.
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
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From: Douglas Schilling Landgraf <dougsland@redhat.com>
Added usb vendor/product id for Kaiser Baas Video to DVD maker.
Thanks to Trevor Campbell <tca42186@bigpond.net.au> for providing all data and tests needed to add this card to em28xx driver.
Priority: normal
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
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From: Douglas Schilling Landgraf <dougsland@redhat.com>
Added SIIG AVTuner-PVR to the right entry.
Priority: normal
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
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From: Douglas Schilling Landgraf <dougsland@redhat.com>
Removed EM2821_BOARD_PROLINK_PLAYTV_USB2 entry.
This entry has a incorrect tuner set.
Priority: normal
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
As reported by Vitaly Wool <vital@embeddedalley.com>:
> about half a year ago I posted the patch that basically enabled Compro
> VideoMate For You USB TV box support.
> The main problem is I couldn't get the sound working.
> So I kind of decomposed the box and found out the audio decoder chip
> used there was Philips TDA9874A. As far as I can see, it's not supported
> within the em28xx suite although it is for other TV tuner drivers.
A tvaudio modprobing confirms that tda9874a chip is accessible via i2c:
tvaudio: TV audio decoder + audio/video mux driver
tvaudio: known chips: tda9840, tda9873h, tda9874h/a, tda9850, tda9855, tea6300, tea6320, tea6420, tda8425, pic16c54 (PV951), ta8874z
tvaudio' 1-0058: chip found @ 0xb0
tvaudio' 1-0058: tvaudio': chip_read2: reg254=0x11
tvaudio' 1-0058: tvaudio': chip_read2: reg255=0x2
tvaudio' 1-0058: tda9874a_checkit(): DIC=0x11, SIC=0x2.
tvaudio' 1-0058: found tda9874a.
tvaudio' 1-0058: tda9874h/a found @ 0xb0 (em28xx #0)
tvaudio' 1-0058: tda9874h/a: chip_write: reg0=0x0
tvaudio' 1-0058: tda9874h/a: chip_write: reg1=0xc0
tvaudio' 1-0058: tda9874h/a: chip_write: reg2=0x2
tvaudio' 1-0058: tda9874h/a: chip_write: reg11=0x80
tvaudio' 1-0058: tda9874h/a: chip_write: reg12=0x0
tvaudio' 1-0058: tda9874h/a: chip_write: reg13=0x0
tvaudio' 1-0058: tda9874h/a: chip_write: reg14=0x1
tvaudio' 1-0058: tda9874h/a: chip_write: reg15=0x0
tvaudio' 1-0058: tda9874h/a: chip_write: reg16=0x14
tvaudio' 1-0058: tda9874h/a: chip_write: reg17=0x50
tvaudio' 1-0058: tda9874h/a: chip_write: reg18=0xf9
tvaudio' 1-0058: tda9874h/a: chip_write: reg19=0x80
tvaudio' 1-0058: tda9874h/a: chip_write: reg20=0x80
tvaudio' 1-0058: tda9874h/a: chip_write: reg24=0x80
tvaudio' 1-0058: tda9874h/a: chip_write: reg255=0x0
tvaudio' 1-0058: tda9874a_setup(): A2, B/G [0x00].
tvaudio' 1-0058: tda9874h/a: thread started]
This patch automatically loads tvaudio when needed (currently, only
with this board).
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Matthias Schwarzott <zzam@gentoo.org>
Hi there!
While having a look at the allocation of struct dvb_frontend in *_attach
functions, I found some cases calling memset after kzalloc. This is
redundant, and the attached patch removes these calls.
I also changed one case calling kmalloc and memset to kzalloc.
Regards
Matthias
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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