New code should not rely on the big kernel lock,
so use the unlocked_ioctl file operation in lirc.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Tested-by: NJarod Wilson <jarod@redhat.com>
Acked-by: NJarod Wilson <jarod@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

ir-jvc-decoder uses bitreverse interfaces, so it should select
BITREVERSE.

ir-jvc-decoder.c:(.text+0x550bc): undefined reference to `byte_rev_table'
ir-jvc-decoder.c:(.text+0x550c6): undefined reference to `byte_rev_table'
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

On Wed, Jul 07, 2010 at 02:52:58PM +0200, Jiri Slaby wrote:
> Hi,
>
> stanse found a locking error in lirc_dev_fop_read:
> if (mutex_lock_interruptible(&ir->irctl_lock))
>   return -ERESTARTSYS;
> ...
> while (written < length && ret == 0) {
>   if (mutex_lock_interruptible(&ir->irctl_lock)) {    #1
>     ret = -ERESTARTSYS;
>     break;
>   }
>   ...
> }
>
> remove_wait_queue(&ir->buf->wait_poll, &wait);
> set_current_state(TASK_RUNNING);
> mutex_unlock(&ir->irctl_lock);                        #2
>
> If lock at #1 fails, it beaks out of the loop, with the lock unlocked,
> but there is another "unlock" at #2.

This should do the trick. Completely untested beyond compiling, but its
not exactly a complicated fix, and in practice, I'm not aware of anyone
ever actually tripping that locking bug, so there's zero functional change
in typical use here.
Signed-off-by: NJarod Wilson <jarod@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NRenzo Dani <arons7@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Since commit b4028437
the 'driver_data' field resides in device's struct device_private
which may be allocated by dev_set_drvdata() if device_private
struct was not allocated previously.

dev_set_drvdata() is used in video_set_drvdata() to set
the driver's private data pointer in v4l2 drivers. Setting
the private data _before_ registering the v4l2 device results
in a memory leak since __video_register_device() also calls
video_set_drvdata(), but after zeroing the device structure.
Thus, the reference to the previously allocated device_private
struct goes lost and a new device_private will be allocated.

All v4l drivers which call video_set_drvdata() _before_
calling video_register_device() are affected. The patch fixes
__video_register_device() to preserve previously allocated
device_private reference.

Caught by kmemleak.
Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NGuillaume Audirac <guillaume.audirac@webag.fr>
Signed-off-by: NSteven Toth <stoth@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Use the register CLUNC to reset the CPTU registers (LSB & MSB) when they
saturate at 0xFFFF. Fixes as well a few register typos.
Signed-off-by: NGuillaume Audirac <guillaume.audirac@webag.fr>
Signed-off-by: NSteven Toth <stoth@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add a missing bit for reading the transmission mode (2K/8K) in
tda10048_get_tps
Signed-off-by: NGuillaume Audirac <guillaume.audirac@webag.fr>
Signed-off-by: NSteven Toth <stoth@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Completes the bit-error-rate read function with the CBER register (before
Viterbi decoder). The returned value is 1e8*actual_ber to be positive.
Also includes some typo mistakes.
Signed-off-by: NGuillaume Audirac <guillaume.audirac@webag.fr>
Signed-off-by: NSteven Toth <stoth@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NKusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: NSteven Toth <stoth@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Started out as an effort to try to tackle the last remaining issue I'm
having with this damned pinnacle device getting wedged the first time
its plugged in after an indeterminate length of not being plugged in.
Didn't get that solved yet, but did streamline the init code a bit more
and remove some superfluous gunk. Nukes a completely unneeded call to
usb_device_init() and several lines of overly complex crap in the gen1
device init path.
Signed-off-by: NJarod Wilson <jarod@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Adds support for Video-In (VIU) unit of Freescale
MPC5121e. The driver supports RGB888/RGB565 formats,
capture and overlay on MPC5121e DIU frame buffer.
Signed-off-by: NHongjun Chen <hong-jun.chen@freescale.com>
Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The camera requires the PROBE_MINMAX quirk. Add a corresponding entry
in the device IDs list
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Data buffers on the stack are not allowed for USB I/O. Use dynamically
allocated buffers instead when querying control length and control
capabilities.

The control capabilities are now also stored in the uvc_control
structure.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Use the macros instead of hardcoding numerical constants for the
controls information bitfield.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The UVCIOC_CTRL_MAP ioctl doesn't support menu entries for menu
controls. As the uvc_xu_control_mapping structure has no reserved
fields, this can't be fixed while keeping ABI compatibility.

Modify the UVCIOC_CTRL_MAP ioctl to add menu entries support, and define
UVCIOC_CTRL_MAP_OLD that supports the old ABI without any ability to add
menu controls.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

According to the v4l2 spec, writing any value to a button control should
result in the action belonging to the button control being triggered.
UVC cams however want to see a 1 written, this patch fixes this by
overriding whatever value user space passed in with -1 (0xffffffff) when
the control is a button control.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMartin Rubli <martin_rubli@logitech.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Per Pieter Hoekstra:

I have a Antec Fusion with a iMON Lcd and I get the following error:
imon 6-1:1.0: Unknown 0xffdc device, defaulting to VFD and iMON IR (id
0x9e)

The driver is functional if I load it like this: (I do not use a remote for it)
modprobe imon display_type=1 (On Mythbuntu 10.04/2.6.32)

This device is a lcd-type with support for a MCE remote. Looking at
the source code, this device (0x9e) is the same as id 0x9f.
Signed-off-by: NJarod Wilson <jarod@redhat.com>
Signed-off-by: NMauro 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: NJean Delvare <khali@linux-fr.org>
Signed-off-by: NMauro 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: NJean Delvare <khali@linux-fr.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMichael Krufky <mkrufky@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/common/tuners/xc5000.c: In function ‘xc_write_reg’:
drivers/media/common/tuners/xc5000.c:298: warning: passing argument 3 of ‘xc5000_readreg’ from incompatible pointer type
drivers/media/common/tuners/xc5000.c:235: note: expected ‘u16 *’ but argument is of type ‘u8 *’
drivers/media/common/tuners/xc5000.c: At top level:
drivers/media/common/tuners/xc5000.c:223: warning: ‘xc_read_i2c_data’ defined but not used
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Convert the cx23885 driver to use the new in kernel IR pulse
decoders for the integrated CX2388[578] IR controllers.  Rip out a lot
of RC-5 decoding related code in the process and rename some variables
for clarity or to more accurately describe their usage.
Signed-off-by: NAndy Walls <awalls@md.metrocast.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Move from the generic, shared card_ir state structure to a cx23885 driver
specific IR state structure in anticipation of moving to the new IR pulse
decoders in the IR core.

Fix up the card name truncation in the dmesg log while we're at it,
by avoiding using fixed length string storage in our new IR state
structure.
Signed-off-by: NAndy Walls <awalls@md.metrocast.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The image pointer and its length are now in the main structure instead
of in the frame buffer. They are updated on application vidioc_qbuf and
in the URB interrupt function when ending an image.
Signed-off-by: NJean-François Moine <moinejf@free.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NJean-François Moine <moinejf@free.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The Kconfig variables are moved to video/davinci/Kconfig through another
patch and these are to be therefore removed
Signed-off-by: NMuralidharan Karicheri <mkaricheri@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Currently VPFE Capture driver and DM6446 CCDC driver is being
reused for AM3517. So this patch is preparing the Kconfig/makefile
for re-use of such IP's.
Signed-off-by: NVaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: NMuralidharan Karicheri <mkaricheri@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Resend due to a whitespace issue I created by mistake.
The below patch fixes a warning message create by gcc 4.6.0

 CC [M]  drivers/media/common/tuners/tuner-simple.o
drivers/media/common/tuners/tuner-simple.c: In function 'simple_set_tv_freq':
drivers/media/common/tuners/tuner-simple.c:548:20: warning: variable 'tun' set but not used
Signed-off-by: NJustin P. Mattock <justinmattock@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NStefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The read_status field is initialized twice to the same value.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier I, s, fld;
position p0,p;
expression E;
@@

struct I s =@p0 { ... .fld@p = E, ...};

@s@
identifier I, s, r.fld;
position r.p0,p;
expression E;
@@

struct I s =@p0 { ... .fld@p = E, ...};

@script:python@
p0 << r.p0;
fld << r.fld;
ps << s.p;
pr << r.p;
@@

if int(ps[0].line)<int(pr[0].line) or int(ps[0].column)<int(pr[0].column):
  cocci.print_main(fld,p0)
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Rework xc_write_reg function for correct read register of the xc5000.
It is very useful for tm6000.

Tested for tm6000 and for saa7134 works well.
Signed-off-by: NBeholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Acked-by: NDevin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

copy_to_user() returns the number of bytes remaining to be copied which
isn't the right thing to return here.  The comments say that these
functions in dvb_ca_en50221.c should return the number of bytes copied or
an error return.  I've changed it to return -EFAULT.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

copy_to/from_user() returns the number of bytes remaining to be copied
but the code here was testing for negative returns.  I modified it to
return -EFAULT.  These functions are called from si4713_s_ext_ctrls() and
that only tests for negative error codes.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Update the Kconfig selections to match the code.
Add the usual condition of !DVB_FE_CUSTOMISE.
Signed-off-by: NBen Hutchings <ben@decadent.org.uk>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

In the hdpvr_probe () function, when an error occurs while probing the device,
the workqueue created by the create_single_thread () call is not properly
destroyed.
Signed-off-by: NPerceval Anichini <perceval@trilogic.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

s2255drv: cleanup of device structure

cleanup of device structure.
single channel array instead of multiple arrays in device for
each channel property.
simplifies open callback by removing search for channel index.
Signed-off-by: NDean Anderson <linux-dev@sensoray.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This is just a cleanup patch.  We never use the "udev" variable so I
have removed it.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>