videobuf_waiton() must unlock and relock ext_lock if it has to wait.
For that to happen it needs the videobuf_queue pointer.
Don't attempt to unlock/relock q->ext_lock unless it was locked in the
first place.
vb->state has to be protected by a spinlock to be safe.
This patch is based on code from Mauro Carvalho Chehab <mchehab@redhat.com>.
[mchehab@redhat.com: add extra argument to a few missing places]
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add an ext_lock argument to the videobuf init functions. This allows
drivers to pass the vdev->lock pointer (or any other externally held lock)
to videobuf. For now all drivers just pass NULL.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Move the cx88 specific initialization for Hauppauge XVR remotes
into cx88-input, removing the need for test it inside ir-kbd-i2c.
The reference at cx88 for this symbol, at:
drivers/media/video/cx88/cx88-i2c.c: core->i2c_adap.id = I2C_HW_B_CX2388x;
drivers/media/video/cx88/cx88-vp3054-i2c.c: vp3054_i2c->adap.id = I2C_HW_B_CX2388x;
Can't be removed yet, since lirc-i2c still uses it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Making static data const avoids allocation of additional r/w memory and
reduces initialisation time. It also provides some additional opportunities
for compiler optimisations.
Signed-off-by: Lawrence Rust <lvr@softsystem.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/video/cx88/cx88-dsp.c: In function ‘detect_a2_a2m_eiaj’:
drivers/media/video/cx88/cx88-dsp.c:158: warning: ‘carrier_freq’ may be used uninitialized in this function
drivers/media/video/cx88/cx88-dsp.c:158: warning: ‘stereo_freq’ may be used uninitialized in this function
drivers/media/video/cx88/cx88-dsp.c:158: warning: ‘dual_freq’ may be used uninitialized in this function
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Using an enum and removing the default case from switch statements accessing
the value enables the compiler to emit a warning (enabled with -Wall) when an
audio mode is not handled.
This highlights an omission in the function cx88_dsp_detect_stereo_sap()
(in cx88-dsp.c) not handling WW_EIAJ and WW_M.
Signed-off-by: Lawrence Rust <lawrence@softsystem.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
In cx23885/cx23885-video.c, cx88/cx88-video.c, davinci/vpif_capture.c, and
davinci/vpif_display.c, group the aligned code into a single if branch.
In saa7134/saa7134-video.c, outdent the code following the if.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable braces4@
position p1,p2;
statement S1,S2;
@@
(
if (...) { ... }
|
if (...) S1@p1 S2@p2
)
@script:python@
p1 << r.p1;
p2 << r.p2;
@@
if (p1[0].column == p2[0].column):
cocci.print_main("branch",p1)
cocci.print_secs("after",p2)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The cx88-alsa module has been around since January 2006 and has seen no
significant changes since September 2007. It is stable in operation
and so I believe that the 'experimental' tag is no longer warranted.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
V4L/DVB: v4l2-ctrls.c: needs to include slab.h
V4L/DVB: fix Kconfig to depends on VIDEO_IR
V4L/DVB: Fix IR_CORE dependencies
Now that i2c-core offers the possibility to provide custom probing
function for I2C devices, let's make use of it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It might be useful to be able to disable the IR support, either for
debugging purposes, or just for users who know they won't use the IR
remote control anyway. On many cards, IR support requires expensive
polling/sampling which is better avoided if never needed.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Move I2C IR initialization from just after I2C bus setup to right
before non-I2C IR initialization. This is the same as was done for
the bttv driver several months ago. Might solve bugs which have not yet
been reported for some cards. It makes both drivers consistent, and
makes it easier to disable IR support (coming soon.)
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The videobuf_dmabuf and videobuf_vmalloc_memory fields have a vmalloc
field to store the kernel virtual address of vmalloc'ed buffers. Rename
the field to vaddr.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The cx88 and cx25821 drivers abuse videobuf_buffer to handle audio data.
Remove the abuse by creating private audio buffer structures with a
videobuf_dmabuf field.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Instead of creating dirty wrappers around videobuf_dma_map/unmap that
create a dummy videobuf_queue structure, modify videobuf_dma_map/unmap
to take a device pointer argument and use it directly. The
videobuf_sg_dma_map/unmap then become unused and can be removed.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Partially convert drivers/media/video/cx88/cx88-input.c to not use
ir-functions.c
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
IR support on FusionHDTV cards is broken since kernel 2.6.31. One side
effect of the switch to the standard binding model for IR I2C devices
was to let i2c-core do the probing instead of the ir-kbd-i2c driver.
There is a slight difference between the two probe methods: i2c-core
uses 0-byte writes, while the ir-kbd-i2c was using 0-byte reads. As
some IR I2C devices only support reads, the new probe method fails to
detect them.
For now, revert to letting the driver do the probe, using 0-byte
reads. In the future, i2c-core will be extended to let callers of
i2c_new_probed_device() provide a custom probing function.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: "Timothy D. Lenz" <tlenz@vorgon.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
In cx88-mpeg.c, there is code that sets core->input to CX88_VMUX_DVB.
However, this may be incorrect, since core->input is actually an
index to core->board.input[], which has not enough elements to be
indexed by the value of CX88_VMUX_DVB. So, the modified code searches
core->board.input[] for an input with a type of CX88_VMUX_DVB, and if
it does not find one, the index is simply set to zero.
The change may not have much effect, though, since it appears the only
case when core->input is actually used is when the current input is
being queried.
Signed-off-by: Istvan Varga <istvanv@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Pulse-distance is not a protocol, it is a line coding (used by some protocols,
like NEC). Looking at the uses of IR_TYPE_PD, the real protocol seems to be
NEC in all cases (drivers/media/video/cx88/cx88-input.c is the only user).
So, remove IR_TYPE_PD while it is still easy to do so.
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Return -EINVAL if we don't find the right query control id.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The following patch fixes code that checks for CX88_VMUX_TELEVISION,
but not CX88_VMUX_CABLE. This prevented for example the audio standard
from being set when using the cable input.
Signed-off-by: Istvan Varga <istvanv@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Due to obvious copy and paste coding a number of video capture drivers
which implement a limit on the buffer memory decremented the user
supplied buffer count in a while loop until it reaches an acceptable
value.
This is a silly thing to do when the maximum value can be directly
computed.
Signed-off-by: Andreas Bombe <aeb@debian.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
A few hardware Remote Controller decoders, even using a standard protocol,
aren't able to provide the entire scancode. Due to that, the capability
of using other IR's are limited on those hardware.
Adds a way to indicate to ir-core what are the bits that the hardware
provides, from a scancode, allowing the addition of a complete IR table
to the kernel and allowing a limited support for changing the Remote
Controller on those devices.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Instead of using the ugly keymap sequences, use the new rc-*.ko keymap
files. For now, it is still needed to have one keymap loaded, for the
RC code to work. Later patches will remove this depenency.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
A latter patch will reuse the ir_input_register with a different meaning.
Before it, change all occurrences to a temporary name.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Replaces most of the occurences of IR keytables on V4L drivers by a macro
that evaluates to provide the name of the exported symbol.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Now, both driver and keytable names are exported to userspace. This
will help userspace to decide when a table need to be replaced
by another one.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
When temporarily there is no video signal, sometimes it takes more than 0.5
secs for the cx88 chip to generate a single frame. If a dma timeout occurs
during recording, it confuses the recording application (at least mencoder)
and the recording stops.
Since there is already an #if 0 for 2 seconds buffer timeout in the code
at the -hg development tree, re-enabling that seemed the most simple
solution.
Signed-off-by: Marton Balint <cus@fazekas.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
This is not needed, since the function already do it. Also, it causes
a warning at the compilation, since a new var is declared in the middle
of the code.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch adds support for the built-in dvb device
of a Samsung SMT7020s (x86 based STB) to the cx88 family.
Signed-off-by: Dirk Herrendoerfer <d.herrendoerfer@herrendoerfer.name>
Signed-off-by: Helmut Auer <helmut@helmutauer.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Ensure that volume values are always in the allowed range. Otherwise,
it would be possible to set other bits in the AUD_VOL_CTL register or to
get a wrong sign in the AUD_BAL_CTL register.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
When preparing the linux-next patches, I got those errors:
include/media/ir-core.h:29: warning: left shift count >= width of type
In file included from include/media/ir-common.h:29,
from drivers/media/video/ir-kbd-i2c.c:50:
drivers/media/video/ir-kbd-i2c.c: In function ‘ir_probe’:
drivers/media/video/ir-kbd-i2c.c:324: warning: left shift count >= width of type
Unfortunately, enum is 32 bits on i386. As we define IR_TYPE_OTHER as 1<<63,
it won't work on non 64 bits arch.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Adds an structure to ir_input_register to contain IR device characteristics,
like supported protocols and a callback to handle protocol event changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
We'll need to register a sysfs class for the IR devices. As such, the better
is to have the input_register_device()/input_unregister_device() inside
the ir register/unregister functions.
Also, solves a naming problem with V4L ir_input_init() function, that were,
in fact, registering a device.
While here, do a few cleanups at budget-ci IR logic.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Now, ir_input_free does more than just freeing the keytab. Better to
rename it as ir_input_unregister.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Now that the video_device registration is tested using
video_is_registered(), drivers don't need to initialize the
video_device::minor field to -1 anymore.
Remove those unneeded assignments.
[mchehab.redhat.com: removed tm6000 changes as tm6000 is not ready yet for submission even on staging]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Instead of using the minor number in kernel log messages, use the device
node name as returned by the video_device_node_name() function. This
makes debug, informational and error messages easier to understand for
end users.
[mchehab.redhat.com: removed tm6000 changes as tm6000 is not ready yet for submission even on staging]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix all device drivers to use the video_drvdata function instead of
maintaining a local list of minor to private data mappings. Call
video_set_drvdata to register the driver private pointer when not
already done.
Where applicable, the local list of mappings is completely removed when
it becomes unused.
[mchehab.redhat.com: removed tm6000 changes as tm6000 is not ready yet for submission even on staging]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix all device drivers to use the video_is_registered function instead
of checking video_device::minor.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Fix all device drivers to use the new video_device_node_name function.
This also strips kernel log messages from the "/dev/" prefix, has the device
node location is a userspace policy decision unknown to the kernel.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (345 commits)
V4L/DVB (13542): ir-keytable: Allow dynamic table change
V4L/DVB (13541): atbm8830: replace 64-bit division and floating point usage
V4L/DVB (13540): ir-common: Cleanup get key evdev code
V4L/DVB (13539): ir-common: add __func__ for debug messages
V4L/DVB (13538): ir-common: Use a dynamic keycode table
V4L/DVB (13537): ir: Prepare the code for dynamic keycode table allocation
V4L/DVB (13536): em28xx: Use the full RC5 code on HVR-950 Remote Controller
V4L/DVB (13535): ir-common: Add a hauppauge new table with the complete RC5 code
V4L/DVB (13534): ir-common: Remove some unused fields/structs
V4L/DVB (13533): ir: use dynamic tables, instead of static ones
V4L/DVB (13532): ir-common: Add infrastructure to use a dynamic keycode table
V4L/DVB (13531): ir-common: rename the debug routine to allow exporting it
V4L/DVB (13458): go7007: subdev conversion
V4L/DVB (13457): s2250: subdev conversion
V4L/DVB (13456): s2250: Change module structure
V4L/DVB (13528): em28xx: add support for em2800 VC211A card
em28xx: don't reduce scale to half size for em2800
em28xx: don't load audio modules when AC97 is mis-detected
em28xx: em2800 chips support max width of 640
V4L/DVB (13523): dvb-bt8xx: fix compile warning
...
Fix up trivial conflicts due to spelling fixes from the trivial tree in
Documentation/video4linux/gspca.txt
drivers/media/video/cx18/cx18-mailbox.h
Currently, the IR table is initialized by calling ir_input_init(). However,
this function doesn't return any error code, nor has a function to be called
when de-initializing the IR's.
Change the return argment to integer and make sure that each driver will
handle the error code. Also adds a function to free any resources that may
be allocating there: ir_input_free().
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
