The "dev" variable is used as a list cursor in a list_for_each_entry()
loop and can never be null here so I removed the check.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
For more clearance what the functions actually do,
usb_buffer_alloc() is renamed to usb_alloc_coherent()
usb_buffer_free() is renamed to usb_free_coherent()
They should only be used in code which really needs DMA coherency.
All call sites have been changed accordingly, except for staging
drivers.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Pedro Ribeiro <pedrib@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The 'type' field was undefined but should be set to ANALOG_TV.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Serialize DVB initialization, to avoid it to happen while analog
initialization is still happening.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The patch that adds the rc-map changes didn't take into account that an
a table with IR_TYPE_UNKNOWN would make change_protocol to return -EINVAL.
As this function is fundamental to initialize some data, including a
callback to the getkey function, this caused the driver to stop working,
hanging the machine most of the times.
The fix were simply to add a handler for the IR type, but, to avoid further
issues, explicitly call change_protocol and handle the error before
initializing the IR. Also, let input_dev to start/stop IR handling,
after the opening of the input device.
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>
card->driver is 15 characters and a NULL. The original code
goes past the end of the array.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add support for design which has an em2863/tvp5150 and uses the standard
empia USB ID. In Sander's case, it was branded as an "Eminent model EM3705"
Thanks to Sander Van Ginkel for testing and help debugging the support.
[mchehab@redhat.com: move it to a vague card number slot (card=29)]
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Rework the logic for tracking the amount of data copied to the VBI buffer, to
address problem found where the video lines are several bytes shifted to the
right (and the leading pixels in the first line rendered are garbage). This
would occur because the copy function would advance the pointer when detecting
headers, but the caller would not adjust the length actually copied.
This work was sponsored by EyeMagnet Limited.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It turns up we can reduce the starting line for the active area, which results
in more data being captured when under PAL (while the full VBI capture window
still stays properly encoded).
This work was sponsored by EyeMagnet Limited.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Increase the packets per URB count from 40 to 64. I suspect that whoever was
looking at the usbsnoop captures saw "0x40" packets and mistook it for "40".
As a result of this change, I can see a 25% reduction in the number of
interrupts generated via powertop.
This work was sponsored by EyeMagnet Limited.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
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>
This patch adapts the changes submitted by Dainius Ridzevicius to the
linux-media mailing list on 8/14/09, to the current sources in order
to make the Kworld VS-DVB-T 323UR usb device work.
I also removed the "not validated" flag since I own the device and validated
that it works fine after the patch is applied.
Thanks to Devin Heitmueller for his guidance with the code.
Signed-off-by: Antonio Larrosa <larrosa@kde.org>
Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
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>
Adds digital and analogue tv support for Dikom DK300 hybrid usb card.
Not working: remote controller
To be done: it seems that with the proposed patch the digital demodulator
remains activated if the tuner is switched from digital to analogue mode.
Workaround is to unplug and replug the device when switching from digital to
analogue. If someone can explain how to verify the gpio settings using the
usbsnoop, the above issue perhaps can be resolved.
Signed-off-by: Andrea Amorosi <Andrea.Amorosi76@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
As pointed by Magnus Alm <magnus.alm@gmail.com>, commit 99dbd128bb applied
a hunk at the wrong place. This patch moves the code to the right place.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
fix Video/Sound support "Leadtek winfast tv usbii deluxe".
Now, it is working Stereo, IR, Radio, TV, Svideo and Composite.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
this patch fixes a memory leak which occurs when an em28xx card with DVB
extension is unplugged or its DVB extension driver is unloaded. In
dvb_fini(), dev->dvb must be freed before being set to NULL, as is done
in dvb_init() in case of error.
Note that this bug is also present in the latest stable kernel release.
Signed-off-by: Francesco Lavra <francescolavra@interfree.it>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Make the VBI support work for PAL standards in addition to NTSC.
This work was sponsored by EyeMagnet Limited.
Thanks go out to Andy Walls for providing a CD containing test PAL/VBI captures
and to Steven Toth for providing a PVR-350 to do signal generation with.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
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>
Experimental patch to allow changing the IR protocol. Currently, it support
changing between RC-5 and NEC protocols.
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>
This device uses an i2c chip to retrieve the keycode from a RC5 remote.
Instead of just getting 6 bits, improve the routine to get 11 bits.
This means that the complete RC5 table for Hauppauge Grey IR can be used
with this device.
Unfortunately, it seems that this IR receiver is not capable of getting
the full 14 (or 13 bits) from the RC5 protocol.
At lest now, with the new code, it is possible to replace this IR table
by another RC5 table.
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>
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>
Modifies the IR table for HVR-950 to use the newer Hauppauge RC5 table,
and adds the RC5 address to the functions that get the scancode for this
device.
It is easy to add support for all other RC5 IR's on em2880 boards, but
the scancode table needs to be re-generated. So, keep using the old
7bits tables while we don't have all tables converted.
Also, the 7bits tables are still used on other drivers, so this small
patch needs to be ported to all drivers.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Adds support to VC211A em2800 card. As this board doesn't have eeprom,
and uses a common set of i2c address, it has no way to add any
autodetection for it.
The patch were tested by me and by Raimundo on his board. Thanks to
those tests, several bugs related to em2800 support were corrected.
for producing the usbsnoop dump, used to get the gpio's and allowing me
to remotelly access his machine and to the needed tests.
Thanks-to: Raimundo Eduvirgnes de Oliveira <eduvirgens@yahoo.com.br>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Since em2800 can't support 720x480 / 720x576, the driver used to reduce
the scale to half the size on those chips. As the proper fix were
applied, reducing the maximum horizontal resolution to 640, this hack
can be removed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
With em2800 hardware, AC97 hardware can be detected even when it doesn't
exist. If, after probing for AC97, the driver won't find a companion
chip, simply prevents the load of the audio modules.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Due to hardware limitation, em2800 chips can't work at resolutions
higher than 640x576, since the URB packet size is not enough.
The effect is that the image looses packages and shows a distortion
along the vertical axes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It seems that some patch broke alt modprobe parameter. Fix it to allow
changing alternate interfaces during module load and at runtime.
If changed during runtime, you'll need to stop a and restart stream for
the parameter to be used.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Convert printks to em28xx_err and em28xx_info
Signed-off-by: Filipe Rosset <rosset.filipe@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
