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Kernel-sync:
This patch is required to allow compilation of the tree with kernel
2.6.19.
This is the original description of the original patch, signed by
David Howells <dhowells@redhat.com>:
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.
The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around. On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).
Where appropriate, an arch may override the generic storage facility and do
something different with the variable. On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.
Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions. Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller. A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.
I've build this code with allyesconfig for x86_64 and i386. I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.
This will affect all archs. Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:
struct pt_regs *old_regs = set_irq_regs(regs);
And put the old one back at the end:
set_irq_regs(old_regs);
Don't pass regs through to generic_handle_irq() or __do_IRQ().
In timer_interrupt(), this sort of change will be necessary:
- update_process_times(user_mode(regs));
- profile_tick(CPU_PROFILING, regs);
+ update_process_times(user_mode(get_irq_regs()));
+ profile_tick(CPU_PROFILING);
I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().
Some notes on the interrupt handling in the drivers:
(*) input_dev() is now gone entirely. The regs pointer is no longer stored in
the input_dev struct.
(*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
something different depending on whether it's been supplied with a regs
pointer or not.
(*) Various IRQ handler function pointers have been moved to type
irq_handler_t.
Signed-Off-By: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Michael Krufky <mkrufky@linuxtv.org>
Some cx88-blackbird boards use an external adc, but not necessarily
for all inputs. Thus, this needs to be configurable on the card level
for each input.
This patch allows for the usage of the external adc to be determined
by a bit setting in the cx88_input struct for cards based on the cx88
blackbird design.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
Add support for the advanced debugging ioctls, to allow access to the
cx88 registers from userspace. Only i2c_id == 0 is supported, for access
to the cx88 adapter itself. There isn't any support for access to I2C
clients of the adapter. Most of them don't have R/W registers anyway,
and its necessary to use i2c-dev to talk to them from userspace.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Steven Toth <stoth@hauppauge.com>
A generic change to cards to allow any board to specify whether
it needs the wm8775 module loaded (by the core) or not.
Signed-off-by: Steven Toth <stoth@hauppauge.com>
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From: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Config option typo:
-#ifdef CONFIG_V4L1_COMPAT
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
A patch from Aug, 17 activated by mistake OVERLAY flag on cx88-video,
together with several cx88-blackbird cleanups. This makes the cx88 driver
to report:
/dev/video0 [v4l2]: ioctl VIDIOC_G_FBUF: Invalid argument
instead of:
/dev/video0 [v4l2]: no overlay support
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Removed usage of HAVE_V4L1
Including videodev.h will just include videodev2.h if V4L1 is not supported
V4L1 code at core drivers will honor CONFIG_V4L1_COMPAT stuff
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Greg Kroah-Hartman <gregkh@suse.de>
This is needed if we wish to change the size of the resource structures.
kernel-sync: backport from kernel to v4l/dvb tree
Based on an original patch from Vivek Goyal <vgoyal@in.ibm.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
This patch works fine with previous kernel versions (tested up to 2.6.12).
kernel-sync
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Michael Krufky <mkrufky@linuxtv.org>
We should no longer try to load the tda9887 module, because it no longer
exists. The tda9887 driver has been merged into the tuner module.
This patch removes all instances of request_module("tda9887") from
the following video4linux drivers: bttv, cx88, em28xx and saa7134.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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From: Michael Krufky <mkrufky@linuxtv.org>
This patch implements the newer v4l2 control features to make the
standard user controls and mpeg encoder controls of cx88-blackbird
video encoder boards available to userspace.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
merge:
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Marcin Rudowski <mar_rud@poczta.onet.pl>
This patch fixes default values for some picture controls:
- brightness set to 50% by default (now is 0%)
- hue set to 50% by default (now is 0%)
- sets saturation to datasheet value
- volume set to 0dB (now is -32dB)
and some left small fixes:
- twice offset adding
- balance didn't follow datasheet (bits[0:5] = attenuation;
bit[6] = channel to provide attenuation)
Signed-off-by: Marcin Rudowski <mar_rud@poczta.onet.pl>
Signed-off-by: Ian Pickworth <ian@pickworth.me.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Video_buf were concerned to allow PCI devices to be used as
video capture devices. This patch extends video_buf features
by virtualizing pci-dependent functions and allowing other
type of devices to use it.
It is still DMA centric, although it may be used also by
devices that emulates scatter/gather behavior or a DMA device
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Ian Pickworth <ian@pickworth.me.uk>
- fix temporary debug code by changing printk to dprintk at level 1.
- move CORE_IOCTL messages from level 1 to level 2.
- this should help with selective debugging,
while not filling people's logs up during normal use.
Signed-off-by: Ian Pickworth <ian@pickworth.me.uk>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Kernel-sync from patch 3318b
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Conversions from kmalloc+memset to k(z|c)alloc
Conversions from kmalloc+memset to k(z|c)alloc.
kernel-sync
Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
- Now, all internal ioctls are at v4l2-common.h
- removed unused ioctl at saa6752hs.h
- all debug ioctl code moved to v4l2-common.c
- removed duplicated stuff from other cards
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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- now, default control values at cx88_cx8800_ctls are honored
- default value for contrast/saturation were changed to be
in line with available documentation for the chipset;
- Removed some bad coding at set_control;
- U/V Saturation now changes proportionally
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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- Commented the code to avoid repeating events when pressing IR keys.
- Included explicit compat_ioctl32 handler.
CC: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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From: Arnd Bergmann <arnd@arndb.de>
This moves the 32 bit ioctl compatibility handlers for
Video4Linux into a new file and adds explicit calls to them
to each v4l device driver.
Unfortunately, there does not seem to be any code handling
the v4l2 ioctls, so quite often the code goes through two
separate conversions, first from 32 bit v4l to 64 bit v4l,
and from there to 64 bit v4l2. My patch does not change
that, so there is still much room for improvement.
Also, some drivers have additional ioctl numbers, for
which the conversion should be handled internally to
that driver.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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* ../linux/drivers/media/video/saa7134/saa7134-video.c:
(video_do_ioctl), (radio_do_ioctl):
- Set tuner type in VIDIOC_G_TUNER.
Signed-off-by: Elad Lahav <elad_lahav@users.sourceforge.net>
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V4L1 support.
- This patch will help obsoleting V4L1 API.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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- Whitespace script improved.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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- Lots of small changes to allow compiling with kernel 2.4.
Compilation result not tested yet.
- After this patch, .version should be removed, since its
syntax has changed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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- Remove some #if 0 which doesn't have any sense
Signed-off-by: Nickolay V. Shmyrev <nshmyrev@yandex.ru>
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* cx88-video.c: (video_read):
* cx88.h:
- Fix a number of sparse warnings.
* videodev2.h:
- strip trailing whitespace.
Signed-off-by: Peter Hagervall <hager@cs.umu.se>
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
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- The Microtune 4049FM5 uses an IF frequency of 33.3 MHz for FM radio.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
* cx88-video.c: (cx8800_resume):
- removed trailing whitespace.
* Changelog:
- fixed some entries missing mchehab's login.
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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* cx88-blackbird.c:
- fix mpeg packet size & count
- add VIDIOC_QUERYCAP ioctl for the mpeg stream
- return more information in struct v4l2_format
- fix default window height
* cx88-video.c:
- small cleanups
Signed-off-by: Catalin Climov <catalin@climov.com>
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* cx88-video.c: (video_release):
* mt20xx.c: (microtune_init):
* saa7134-video.c: (video_release):
* tda8290.c: (standby), (tda8290_init):
* tda9887.c: (tda9887_set_tvnorm), (tda9887_configure),
(tda9887_command):
* tea5767.c: (set_radio_freq), (tea5767_standby),
(tea5767_tuner_init):
* tuner-core.c: (set_addr), (check_mode), (set_mode),
(tuner_command):
* tuner-simple.c: (default_tuner_init):
* tuner.h:
- New tuner standby API.
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with "core".
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to cx88_do_ioctl.
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- Added some comments about DMA stuff.
- Removed obsolete code.
* tea5761.c:
- Removed an incorrect comment that cames from tea5767.c file.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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- It is importand to write at first to MO_GP3_IO, see datasheet
on page 77: "2.3.3 GPIO Normal Mode". Importand is Bit 25 (GP3_MODE),
or it is already done in file "cx88-video.c" at
"static int video_mux(struct cx8800_dev *dev, unsigned int input)".
From: Torsten Seeboth <Torsten.Seeboth@t-online.de>
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
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- Removed remaining trailing spaces.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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* cx88-video.c:
- After changing channels, reconfigure audio parameters.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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- Some debug structs moved to their own .c file and converted to static
- some // comments converted to #if 0
* cx88-mpeg.c:
- Small cleanup for thinks like 0<<14
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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- Added code to eliminate #if 0 and #if 1 when submiting pathes
to new kernel.
Miscelaneous CodingStyle stuff.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
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