7 years ago[media] Exynos4 JPEG codec v4l2 driver
Andrzej Pietrasiewicz [Thu, 24 Nov 2011 14:15:23 +0000]
[media] Exynos4 JPEG codec v4l2 driver

Add driver for the JPEG codec IP block available in Samsung Exynos SoC series.

The driver is implemented as a V4L2 mem-to-mem device. It exposes two video
nodes to user space, one for the encoding part, and one for the decoding part.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sakari Ailus <sakari.ailus@iki.fi>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] doc: v4l: selection: choose pixels as units for selection rectangles
Tomasz Stanislawski [Fri, 9 Dec 2011 16:45:47 +0000]
[media] doc: v4l: selection: choose pixels as units for selection rectangles

Pixels were preferred units for selection rectangles over driver-dependent
units for almost all use cases. Therefore the units were fixed to pixels.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] v4l: s5p-tv: mixer: fix setup of VP scaling
Tomasz Stanislawski [Fri, 25 Nov 2011 08:56:18 +0000]
[media] v4l: s5p-tv: mixer: fix setup of VP scaling

Adjusting of Video Processor's scaling factors was flawed. It bounded scaling
to range 1/16 to 1/1. The correct range should be 1/4 to 4/1. This patch fixes
this bug.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] v4l: s5p-tv: mixer: add support for selection API
Tomasz Stanislawski [Thu, 25 Aug 2011 10:14:26 +0000]
[media] v4l: s5p-tv: mixer: add support for selection API

This patch add support for V4L2 selection API to s5p-tv driver.  Moreover it
removes old API for cropping.  Old applications would still work because the
crop ioctls are emulated using the selection API.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] v4l: emulate old crop API using extended crop/compose API
Tomasz Stanislawski [Tue, 22 Mar 2011 17:04:47 +0000]
[media] v4l: emulate old crop API using extended crop/compose API

This patch allows new video drivers to work correctly with applications that
use the old-style crop API.  The old crop ioctl is emulated by using selection
callbacks.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] doc: v4l: add documentation for selection API
Tomasz Stanislawski [Fri, 19 Aug 2011 10:00:04 +0000]
[media] doc: v4l: add documentation for selection API

This patch adds a documentation for VIDIOC_{G/S}_SELECTION ioctl. Moreover, the
patch adds the description of modeling of composing, cropping and scaling
features in V4L2. Finally, some examples are presented.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] doc: v4l: add binary images for selection API
Tomasz Stanislawski [Thu, 29 Sep 2011 14:00:20 +0000]
[media] doc: v4l: add binary images for selection API

This patch adds images in binary format for the V4L2 selection API.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] v4l: add support for selection api
Tomasz Stanislawski [Wed, 10 Aug 2011 13:37:47 +0000]
[media] v4l: add support for selection api

This patch introduces new api for a precise control of cropping and composing
features for video devices. The new ioctls are VIDIOC_S_SELECTION and
VIDIOC_G_SELECTION.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] hd29l2: fix review findings
Antti Palosaari [Tue, 10 Jan 2012 23:46:26 +0000]
[media] hd29l2: fix review findings

Fix some issues pointed out by Mauro.
Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] dvb-core: define general callback value for demodulator
Antti Palosaari [Tue, 10 Jan 2012 23:33:43 +0000]
[media] dvb-core: define general callback value for demodulator

Allow use of that general callback for demod too.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] hd29l2: add debug for used IF frequency
Antti Palosaari [Tue, 10 Jan 2012 22:26:35 +0000]
[media] hd29l2: add debug for used IF frequency

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] hd29l2: synch for latest DVB core changes
Antti Palosaari [Tue, 10 Jan 2012 16:15:16 +0000]
[media] hd29l2: synch for latest DVB core changes

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] HDIC HD29L2 DMB-TH USB2.0 reference design driver
Antti Palosaari [Mon, 7 Nov 2011 12:28:29 +0000]
[media] HDIC HD29L2 DMB-TH USB2.0 reference design driver

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] HDIC HD29L2 DMB-TH demodulator driver
Antti Palosaari [Sun, 6 Nov 2011 23:01:13 +0000]
[media] HDIC HD29L2 DMB-TH demodulator driver

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] em28xx: Fix tuner_type for Terratec Cinergy 200 USB
Sascha Sommer [Sun, 8 Jan 2012 19:41:22 +0000]
[media] em28xx: Fix tuner_type for Terratec Cinergy 200 USB

The card definition of the Terratec Cinergy 200 USB uses the
wrong tuner type. Therefore some channels are currently missing.
Attached patch fixes this problem.

Signed-off-by: Sascha Sommer <saschasommer@freenet.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] em28xx: increase maxwidth for em2800
Sascha Sommer [Sun, 8 Jan 2012 19:54:28 +0000]
[media] em28xx: increase maxwidth for em2800

The MaxPacketSize for em2800 based devices is too small to capture at full resolution.
Therefore scale down when the maximum frame size is selected.
The previous workaround that simply reduced the X resolution cannot be used
because it crops a part of the input as
the em2800 can only scale down with a factor of 0.5.

reverts commits 1ca31892e and fb3de0398ab.

[mchehab@redhat.com: Fix CodingStyle]
Signed-off-by: Sascha Sommer <saschasommer@freenet.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] em28xx: Do not modify EM28XX_R06_I2C_CLK for em2800
Sascha Sommer [Sun, 8 Jan 2012 19:32:09 +0000]
[media] em28xx: Do not modify EM28XX_R06_I2C_CLK for em2800

writing the EM28XX_R06_I2C_CLK register leads to the problem that the
i2c bus on the Terratec Cinergy 200 USB is no longer usable when the
system is rebooted.

The device needs to be unplugged in order to bring it back to life.
Attached patch conditionally disables the write in
em28xx_pre_card_setup() like it is already done in em28xx_card_setup().

Signed-off-by: Sascha Sommer <saschasommer@freenet.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] em28xx: Fix: I2C_CLK write error message checks wrong return code
Sascha Sommer [Sun, 8 Jan 2012 19:19:30 +0000]
[media] em28xx: Fix: I2C_CLK write error message checks wrong return code

It looks like the return value check that is done after setting the I2C
speed checks the wrong return code.

Signed-off-by: Sascha Sommer <saschasommer@freenet.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] em28xx: simplify argument passing to em28xx_init_dev()
Thomas Petazzoni [Sat, 7 Jan 2012 13:18:45 +0000]
[media] em28xx: simplify argument passing to em28xx_init_dev()

The 'struct em28xx *' pointer was passed by reference to the
em28xx_init_dev() function, for no reason. Instead, just pass it by
value, which is much more logical and simple.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] af9005, af9015: use symbolic names for USB id table indices
Jonathan Nieder [Sat, 7 Jan 2012 07:11:27 +0000]
[media] af9005, af9015: use symbolic names for USB id table indices

The af9005_properties and af9015_properties tables make use of USB ids
from the USB id tables with hardcoded indices, as in
"&af9015_usb_table[30]".  Adding new entries before the end breaks
such references, so everyone has had to carefully tiptoe to only add
entries at the end of the list.

In the spirit of "dw2102: use symbolic names for dw2102_table
indices", use C99-style initializers with symbolic names for each
index to avoid this.  In the new regime, properties tables referring
to the USB ids have names like "&af9015_usb_table[CINERGY_T_STICK_RC]"
that do not change meaning when items in the USB id table are
reordered.

Encouraged-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Luca Olivetti <luca@ventoso.org>
Acked-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] cx231xx: use URB_NO_TRANSFER_DMA_MAP on URBs allocated with usb_alloc_urb()
Thomas Petazzoni [Sat, 7 Jan 2012 12:52:37 +0000]
[media] cx231xx: use URB_NO_TRANSFER_DMA_MAP on URBs allocated with usb_alloc_urb()

URBs allocated with usb_alloc_urb() are allocated from DMA-coherent
areas, and therefore it is not necessary to call dma_map_single() on
such buffers. Worst, on ARM, calling dma_map_single() on a
DMA-coherent buffer will trigger a BUG_ON() in
arch/arm/mm/dma-mapping.c.

Therefore, we mark all URBs allocated with usb_alloc_urb() with the
URB_NO_TRANSFER_DMA_MAP transfer_flags, so that the USB core does not
do dma_map_single()/dma_unmap_single() on those buffers.

This is similar to 882787ff8fdeb0be790547ee9b22b281095e95da for the
gspca driver, and has already been discussed on the linux-media list
in the past:
http://www.mail-archive.com/linux-media@vger.kernel.org/msg37086.html.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] cx231xx: simplify argument passing to cx231xx_init_dev()
Thomas Petazzoni [Sat, 7 Jan 2012 12:52:40 +0000]
[media] cx231xx: simplify argument passing to cx231xx_init_dev()

The 'struct cx231xx *' pointer was passed by reference to the
cx231xx_init_dev() function, for no reason. Instead, just pass it by
value, which is much more logical and simple.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] mxl5007t: bugfix DVB-T 7 MHz and 8 MHz bandwidth
Antti Palosaari [Tue, 10 Jan 2012 16:31:37 +0000]
[media] mxl5007t: bugfix DVB-T 7 MHz and 8 MHz bandwidth

DVB-T did not work at all - only 6 MHz was working but it is not
commonly used.
Fix it.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] tda18271-fe: Fix support for ISDB-T
Mauro Carvalho Chehab [Mon, 9 Jan 2012 20:26:32 +0000]
[media] tda18271-fe: Fix support for ISDB-T

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

7 years ago[media] cx231xx: fix device disconnect checks
Mauro Carvalho Chehab [Tue, 10 Jan 2012 11:48:50 +0000]
[media] cx231xx: fix device disconnect checks

The driver were using DEV_MISCONFIGURED on some places, and
DEV_DISCONNECTED on others. In a matter of fact, DEV_MISCONFIGURED
were set only during the usb disconnect callback, with
was confusing.

Also, the alsa driver never checks if the device is present,
before doing some dangerous things.

Remove DEV_MISCONFIGURED, replacing it by DEV_DISCONNECTED.

Also, fixes the other usecases for DEV_DISCONNECTED.

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

7 years ago[media] cx231xx: cx231xx_devused is racy
Mauro Carvalho Chehab [Tue, 10 Jan 2012 11:33:47 +0000]
[media] cx231xx: cx231xx_devused is racy

cx231xx_devused is racy. Re-implement it in a proper way,
to remove the risk of mangling it.

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

7 years ago[media] cx231xx: Fix unregister logic
Mauro Carvalho Chehab [Tue, 10 Jan 2012 11:20:01 +0000]
[media] cx231xx: Fix unregister logic

There are several weirdness at the unregister logic.

First of all, IR has a poll thread. This thread needs to be
removed, as it uses some resources associated to the main driver.
So, the driver needs to explicitly unregister the I2C client for
ir-kbd-i2c.

If, for some reason, the driver needs to wait for a close()
to happen, not all memories will be freed, because the free
logic were in the wrong place.

Also, v4l2_device_unregister() seems to be called too early,
as devices are still using it.

Finally, even with the device disconnected, there is one
USB function call that will still try to talk with it.

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

7 years ago[media] mb86a20s: implement get_frontend()
Mauro Carvalho Chehab [Mon, 9 Jan 2012 20:16:36 +0000]
[media] mb86a20s: implement get_frontend()

Reports the auto-detected parameters to userspace.

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

7 years ago[media] cx231xx-input: stop polling if the device got removed.
Mauro Carvalho Chehab [Tue, 10 Jan 2012 00:28:13 +0000]
[media] cx231xx-input: stop polling if the device got removed.

If the device got removed, stops polling it. Also, un-registers
it at input/evdev, as it won't work anymore. We can't free the
IR structure yet, as the ir_remove method will be called later.

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

7 years ago[media] cx231xx: remove useless 'lif' variable in cx231xx_usb_probe()
Thomas Petazzoni [Sat, 7 Jan 2012 12:52:39 +0000]
[media] cx231xx: remove useless 'lif' variable in cx231xx_usb_probe()

Now that we set the intfdata on the right interface, the 'lif'
variable is useless.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] cx231xx: fix crash after load/unload/load of module
Thomas Petazzoni [Sat, 7 Jan 2012 12:52:38 +0000]
[media] cx231xx: fix crash after load/unload/load of module

The following sequence of commands was triggering a kernel crash in
cdev_get():

 modprobe cx231xx
 rmmod cx231xx
 modprobe cx231xx
 v4l2grab -n 1

The problem was that cx231xx_usb_disconnect() was not doing anything
because the test:

if (!dev->udev)
return;

was reached (i.e, dev->udev was NULL).

This is due to the fact that the 'dev' pointer placed as intfdata into
the usb_interface structure had the wrong value, because
cx231xx_probe() was doing the usb_set_intfdata() on the wrong
usb_interface structure. For some reason, cx231xx_probe() was doing
the following:

static int cx231xx_usb_probe(struct usb_interface *interface,
     const struct usb_device_id *id)
{
        struct usb_interface *lif = NULL;
[...]
        /* store the current interface */
        lif = interface;
[...]
        /* store the interface 0 back */
        lif = udev->actconfig->interface[0];
[...]
usb_set_intfdata(lif, dev);
[...]
retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
[...]
}

So, the usb_set_intfdata() was done on udev->actconfig->interface[0]
and not on the 'interface' passed as argument to the ->probe() and
->disconnect() hooks. Later on, v4l2_device_register() was
initializing the intfdata of the correct usb_interface structure as a
pointer to the v4l2_device structure.

Upon unregistration, the ->disconnect() hook was getting the intfdata
of the usb_interface passed as argument... and casted it to a 'struct
cx231xx *' while it was in fact a 'struct v4l2_device *'.

The correct fix seems to just be to set the intfdata on the proper
interface from the beginning. Now, loading/unloading/reloading the
driver allows to use the device properly.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] dvb_ca_en50221: fix compilation breakage
Mauro Carvalho Chehab [Tue, 10 Jan 2012 21:08:53 +0000]
[media] dvb_ca_en50221: fix compilation breakage

As reported by Toralf:

the build failed with :
CC [M] drivers/media/dvb/dvb-core/dvb_ca_en50221.o
In file included from arch/x86/include/asm/uaccess.h:573:0,
                 from include/linux/poll.h:14,
                 from drivers/media/dvb/dvb-core/dvbdev.h:27,
                 from drivers/media/dvb/dvb-core/dvb_ca_en50221.h:27,
                 from drivers/media/dvb/dvb-core/dvb_ca_en50221.c:41:
In function "copy_from_user", inlined from "dvb_ca_en50221_io_write" at drivers/media/dvb/dvb-core/dvb_ca_en50221.c:1314:26: arch/x86/include/asm/uaccess_32.h:211:26: error: call to "copy_from_user_overflow" declared with attribute error: copy_from_user() buffer size is not provably correct

Reported-by: Toralf Foerster <toralf.foerster@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] Added model Sveon STV40
Mario Ceresa [Fri, 6 Jan 2012 19:00:12 +0000]
[media] Added model Sveon STV40

Signed-off-by: Mario Ceresa <mrceresa@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] media: tvp5150: Add mbus_fmt callbacks
Javier Martin [Thu, 5 Jan 2012 13:57:39 +0000]
[media] media: tvp5150: Add mbus_fmt callbacks

These callbacks allow a host video driver
to poll video formats supported by tvp5150.

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

7 years ago[media] dm1105: release dvbnet on frontend attachment failure
Jonathan Nieder [Fri, 6 Jan 2012 17:40:26 +0000]
[media] dm1105: release dvbnet on frontend attachment failure

The patch "dm1105: handle errors from dvb_net_init" moved the
initialization of dvbnet to before frontend attachment but forgot
to adjust the error handling when frontend attachment fails.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] dvb-bt8xx: convert printks to pr_err()
Jonathan Nieder [Fri, 6 Jan 2012 17:26:41 +0000]
[media] dvb-bt8xx: convert printks to pr_err()

This module does some printks with the loglevel missing.

pr_err() takes care of adding the KERN_ERR tag and the module name.
So we can simplify the code and add the missing printk loglevel by
using it.

Also add a #define pr_fmt() to make this work, and remove a few
unnecessary periods at the end of messages and bump the loglevel of
"Unknown bttv card type" from KERN_WARNING to KERN_ERR while at it.

Inspired-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] dvb-bt8xx: use dprintk for debug statements
Jonathan Nieder [Fri, 6 Jan 2012 17:26:14 +0000]
[media] dvb-bt8xx: use dprintk for debug statements

This way, the messages will be tagged with KERN_DEBUG and not clutter
the log from dmesg unless the "debug" module parameter is set.

[mchehab@redhat.com: whitespace fixes]
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] flexcop: CodingStyle fix: don't use "if ((ret = foo()) < 0)"
Jonathan Nieder [Fri, 6 Jan 2012 15:57:56 +0000]
[media] flexcop: CodingStyle fix: don't use "if ((ret = foo()) < 0)"

Lift assignments from "if" conditionals for readability.  No change
in functionality intended.

Suggested-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] cx23885: add Terratec Cinergy T PCIe dual
Stefan Ringel [Sat, 7 Jan 2012 12:20:48 +0000]
[media] cx23885: add Terratec Cinergy T PCIe dual

Signed-off-by: Stefan Ringel <linuxtv@stefanringel.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] dvb: remove bogus modulation check
Mauro Carvalho Chehab [Sat, 7 Jan 2012 07:38:38 +0000]
[media] dvb: remove bogus modulation check

This code is wrong as I should have coded it as SYS_DVBC, instead of
SYS_DVBS & friends. Anyway, this check has other problems

1) it does some "magic" by assuming that all QAM modulations are below
  QAM_AUTO;

2) it checks modulation parameters only for one delivery system.
   Or the core should check invalid parameters for all delivery
   systems, or it should let the frontend drivers do it;

3) frontend drivers should already be checking for invalid parameters
   (most of them do it, anyway);

4) not all modulations are mapped at fe->ops.info.caps, so it is not
   even possible to check for the valid modulations inside the core
   for some delivery systems;

5) The core check is incomplete anyway: it only checks for a few
   parameters. If moved into the core other parameters like bandwidth
   and fec should also be checked;

6) 2nd gen DVB-C uses OFDM. So, that test would fail for it.

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

7 years ago[media] drxk_hard: Remove dead code
Mauro Carvalho Chehab [Sat, 7 Jan 2012 07:35:40 +0000]
[media] drxk_hard: Remove dead code

As reported by Oliver, some old dead code were preserved there.

Thanks-to: Oliver endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] Add support for two Leadtek Winfast TV 2000XP types
Istvan Varga [Sun, 11 Dec 2011 23:20:24 +0000]
[media] Add support for two Leadtek Winfast TV 2000XP types

Add support for two new types of Leadtek Winfast TV 2000XP tuner

The author of this patch is Istvan Varga.
Only resending current reformated version against current git.

Signed-off-by: Miroslav Slugen <thunder.mmm@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] V4L/DVB: v4l2-ioctl: integer overflow in video_usercopy()
Dan Carpenter [Thu, 5 Jan 2012 05:27:57 +0000]
[media] V4L/DVB: v4l2-ioctl: integer overflow in video_usercopy()

If ctrls->count is too high the multiplication could overflow and
array_size would be lower than expected.  Mauro and Hans Verkuil
suggested that we cap it at 1024.  That comes from the maximum
number of controls with lots of room for expantion.

$ grep V4L2_CID include/linux/videodev2.h | wc -l
211

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] saa7134: use correct array offset
Dan Carpenter [Thu, 5 Jan 2012 05:24:00 +0000]
[media] saa7134: use correct array offset

Smatch complains that i can be one passed the end of the array if we
don't hit the break statement.  We should be using the "audio" here like
we do in the other places.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] af9013: change & to &&
Dan Carpenter [Thu, 5 Jan 2012 05:23:28 +0000]
[media] af9013: change & to &&

This is just a cleanup, it doesn't change how the code works.  These
are compound conditions and not bitwise operations so it should be &&
and not &.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] cx88: Fix radio support for Leadtek DTV2000H J
Miroslav Slugen [Tue, 13 Dec 2011 18:36:15 +0000]
[media] cx88: Fix radio support for Leadtek DTV2000H J

Leadtek DTV2000H J has Philips a FMD1216MEX tuner,
and not a FMD1216ME.

Signed-off-by: Miroslav Slugen <thunder.mmm@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] xc3028: fix center frequency calculation for DTV78 firmware
Gianluca Gennari [Wed, 4 Jan 2012 18:17:19 +0000]
[media] xc3028: fix center frequency calculation for DTV78 firmware

This patch replaces the previous one proposed in the thread "xc3028:
force reload of DTV7 firmware in VHF band with Zarlink demodulator",
at the linux-media@vger.kernel.org ML.

The problem is that the firmware DTV78 works fine in UHF band (8 MHz
bandwidth) but is not working at all in VHF band (7 MHz bandwidth).
Reading the comments inside the code, I figured out that the real
problem could be connected to the formula used to calculate the center
frequency offset in VHF band.

In fact, removing this adjustment fixes the problem:

if ((priv->cur_fw.type & DTV78) && freq < 470000000)
offset -= 500000;

This is coherent to what was implemented for the DTV7 firmware by an
Australian user:

if (priv->cur_fw.type & DTV7)
offset += 500000;

In the end, now the center frequency is the same for all firmwares
(DTV7, DTV8, DTV78) and doesn't depend on channel bandwidth.

The final code looks clean and simple, and there is no need for any
"magic" adjustment:

if (priv->cur_fw.type & DTV6)
offset = 1750000;
else /* DTV7 or DTV8 or DTV78 */
offset = 2750000;

Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] drivers: media: radio: Fix dependencies for RADIO_WL128X
Fabio Estevam [Wed, 4 Jan 2012 02:42:04 +0000]
[media] drivers: media: radio: Fix dependencies for RADIO_WL128X

Fix the following build warning:

warning: (RADIO_WL128X) selects TI_ST which has unmet direct dependencies (MISC_DEVICES && NET && GPIOLIB)

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] drivers: media: tuners: Fix dependency for MEDIA_TUNER_TEA5761
Fabio Estevam [Wed, 4 Jan 2012 02:22:27 +0000]
[media] drivers: media: tuners: Fix dependency for MEDIA_TUNER_TEA5761

Fix the following build warning:

warning: (MEDIA_TUNER) selects MEDIA_TUNER_TEA5761 which has unmet direct
dependencies (MEDIA_SUPPORT && VIDEO_MEDIA && I2C && EXPERIMENTAL)

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] it913x changed firmware loader for chip version 2 types
Malcolm Priestley [Thu, 15 Dec 2011 21:43:44 +0000]
[media] it913x changed firmware loader for chip version 2 types

On Thu, 2011-12-15 at 16:42 +0000, Malcolm Priestley wrote:
> > [ 1103.536156] it913x: Chip Version=ec Chip Type=5830
> > [ 1104.336178] it913x: Dual mode=92 Remote=92 Tuner Type=92
> > [ 1106.248116] dvb-usb: found a 'ITE 9135(9006) Generic' in cold state,
> > will try to load a firmware
> > [ 1106.253773] dvb-usb: downloading firmware from file
> > 'dvb-usb-it9135-02.fw'
> > [ 1106.452123] it913x: FRM Starting Firmware Download
> > [ 1130.756039] it913x: FRM Firmware Download Failed (ffffff92)
> > [ 1130.956168] it913x: Chip Version=79 Chip Type=5823
> > [ 1131.592192] it913x: DEV it913x Error
> > [ 1131.592271] usbcore: registered new interface driver it913x
> >
> > No frontend is generated anyway.
>
> Looks like the the firmware is not at all compatible with your device.
>
> Have you applied the patch cleanly to the latest media_build?
>
> These appear to be new version of the 9006. A supplier is sending me one
> of these devices.
>
> As a last resort see if the device works with dvb-usb-it9137-01.fw
>
> You will have force to use this firmware
> dvb-usb-it913x firmware=1

Here is a modified firmware loader for version 2 types.

The firmware must be as in original
./dvb_get_firmware it9135

dd if=dvb-usb-it9135.fw ibs=1 skip=12866 count=5817 of=dvb-usb-it9135-02.fw

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] af9013: Fix typo in get_frontend() function
Gianluca Gennari [Tue, 3 Jan 2012 16:47:35 +0000]
[media] af9013: Fix typo in get_frontend() function

This patch fixes an obvious typo in the get_frontend() function
of the af9013 driver, recently rewritten by Antti Palosaari.

Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] dvb-bt8xx: Fix a printk statement
Mauro Carvalho Chehab [Fri, 6 Jan 2012 15:08:58 +0000]
[media] dvb-bt8xx: Fix a printk statement

By accident, I added an extra comma at the printk format argument.

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

7 years ago[media] it913x-fe ver 1.13 add BER and UNC monitoring
Malcolm Priestley [Tue, 3 Jan 2012 09:28:32 +0000]
[media] it913x-fe ver 1.13 add BER and UNC monitoring

Add BER monitoring with Pre-Viterbi error rate.

Add UCBLOCKS based on Aborted packets.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] it913x ver 1.22 corrections to Tuner IDs
Malcolm Priestley [Tue, 3 Jan 2012 09:27:06 +0000]
[media] it913x ver 1.22 corrections to Tuner IDs

Correction to tuner ID 0x51.

Don't force tuner ID 0x60 unless eprom data zero.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] [resend] em28xx: Add Plextor ConvertX PX-AV100U to em28xx-cards.c
Don Kramer [Mon, 2 Jan 2012 19:15:44 +0000]
[media] [resend] em28xx: Add Plextor ConvertX PX-AV100U to em28xx-cards.c

Adds support for the Plextor ConvertX PX-AV100U, which uses the
eMPIA EM2820 chip.  The device has a device_id of '0x093b, 0xa003'.  I
am using the existing EM2820_BOARD_PINNACLE_DVC_90 board profile, as
the Pinnacle Dazzle DVC 90/100/101/107, Kaiser Baas Video to DVD
maker, and Kworld DVD Maker 2 were already mapped to it.  Some more
background on the device and my testing can be found at
http://www.donkramer.net/plextor_122710.pdf

Signed-off-by: Don Kramer <dgkramer@comcast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] [BUG] it913x ver 1.21 Fixed for issue with 9006 and warm boot
Malcolm Priestley [Mon, 2 Jan 2012 17:49:28 +0000]
[media] [BUG] it913x ver 1.21 Fixed for issue with 9006 and warm boot

Some channels appear weak signal after warm boot.

Because tuner id is not present in eprom 0x38 is
assigned.

9006 devices are now always assigned 0x60.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] [BUG] it913x ver 1.20. PID filter problems
Malcolm Priestley [Mon, 2 Jan 2012 17:46:32 +0000]
[media] [BUG] it913x ver 1.20. PID filter problems

Fixes issues with PID filter
Stalling of some channels when PID is on.
PID filter not turning off fully.
PID filter can now turn on and off each index.

Removed PID_RST from it913x_pid_filter_ctrl.
Replaced with PID_EN removed from it913x_pid_filter

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] v4l: Add VIDIOC_LOG_STATUS support for sub-device nodes
Sylwester Nawrocki [Sat, 1 Oct 2011 14:13:59 +0000]
[media] v4l: Add VIDIOC_LOG_STATUS support for sub-device nodes

The VIDIOC_LOG_STATUS ioctl allows to dump the current status of a driver
to the kernel log. Currently this ioctl is only available at video device
nodes and the subdevs rely on the host driver to expose their core.log_status
operation to user space.

This patch adds VIDIOC_LOG_STATUS support at the sub-device nodes,
for standalone subdevs that expose their own /dev entry.

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] s5p-fimc: Prevent lock up caused by incomplete H/W initialization
Sylwester Nawrocki [Thu, 17 Nov 2011 09:23:21 +0000]
[media] s5p-fimc: Prevent lock up caused by incomplete H/W initialization

The following ioctl sequence causes fimc_dma_run() to start processing without
complete scaler and DMA initialization which causes missing interrupt and
blocking on DQBUF:
S_FMT, STREAMON, QBUF, DQBUF, STREAMOFF, STREAMON, QBUF, DQBUF.

Fix this regression caused by moving pm_runtime* calls to start/stop_streaming
callback by making sure the fimc_m2m_resume() is always invoked when expected.

Reported-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] firedtv: handle errors from dvb_net_init
Jonathan Nieder [Sat, 31 Dec 2011 11:19:56 +0000]
[media] firedtv: handle errors from dvb_net_init

It is not common for dvb_net_init to fail, but after the patch
"dvb_net_init: return -errno on error" it can fail due to running out
of memory.  Handle this.

From an audit of dvb_net_init callers.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Reviewed-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] dvb-usb: handle errors from dvb_net_init
Jonathan Nieder [Sat, 31 Dec 2011 11:10:57 +0000]
[media] dvb-usb: handle errors from dvb_net_init

From an audit of dvb_net_init callers, now that that function
returns -errno on error.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] dm1105: handle errors from dvb_net_init
Jonathan Nieder [Sat, 31 Dec 2011 11:08:45 +0000]
[media] dm1105: handle errors from dvb_net_init

Clean up and error out if dvb_net_init fails (for example due to
ENOMEM).  This involves moving the dvb_net_init call to before
frontend_init to make cleaning up a little easier.

From an audit of dvb_net_init callers, now that dvb_net_init lets
callers know about errors.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] dvb-bt8xx: handle errors from dvb_net_init
Jonathan Nieder [Sat, 31 Dec 2011 11:06:37 +0000]
[media] dvb-bt8xx: handle errors from dvb_net_init

Clean up and error out if dvb_net_init fails (for example when
running out of memory).

From an audit of dvb_net_init callers, now that dvb_net_init
has learned to return a nonzero value from time to time.

[mchehab.redhat.com: codingstyle fix: printk() should include KERN_ facility level]
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] flexcop: handle errors from dvb_net_init
Jonathan Nieder [Sat, 31 Dec 2011 11:04:25 +0000]
[media] flexcop: handle errors from dvb_net_init

Bail out if dvb_net_init encounters an error (for example an
out-of-memory condition), now that it reports them.

[mchehab@redhat.com: CodingStyle fix: don't use  "if ((ret = foo()) < 0)"]
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] ttusb-budget: use goto for exception handling
Jonathan Nieder [Sat, 31 Dec 2011 11:01:56 +0000]
[media] ttusb-budget: use goto for exception handling

Avoid some repetition by adopting the usual "goto err" idiom for error
handling.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] dvb-bt8xx: use goto based exception handling
Jonathan Nieder [Sat, 31 Dec 2011 10:58:34 +0000]
[media] dvb-bt8xx: use goto based exception handling

Repeating the same cleanup code in each error handling path makes life
unnecessarily difficult for reviewers, who much check each instance of
the same copy+pasted code separately.  A "goto" to the end of the
function is more maintainable and conveys the intent more clearly.

While we're touching this code, also lift some assignments from "if"
conditionals for simplicity.

No functional change intended.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] videobuf-dvb: avoid spurious ENOMEM when CONFIG_DVB_NET=n
Jonathan Nieder [Sat, 31 Dec 2011 10:56:11 +0000]
[media] videobuf-dvb: avoid spurious ENOMEM when CONFIG_DVB_NET=n

videobuf_dvb_register_bus relies on dvb_net_init to set dvbnet->dvbdev
on success, but ever since commit fcc8e7d8c0e2 ("dvb_net: Simplify the
code if DVB NET is not defined"), ->dvbdev is left unset when
networking support is disabled.  Therefore in such configurations
videobuf_dvb_register_bus always returns failure, tripping
little-tested error handling paths and preventing the device from
being initialized and used.

Now that dvb_net_init returns a nonzero value on error, we can use
that as a more reliable error indication.  Do so.

Now your card be used with CONFIG_DVB_NET=n, and the kernel will pass
on a more useful error code describing what happened when
CONFIG_DVB_NET=y but dvb_net_init fails due to resource exhaustion.

Reported-by: David Fries <David@Fries.net>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] DVB: dvb_net_init: return -errno on error
Jonathan Nieder [Sat, 31 Dec 2011 10:54:16 +0000]
[media] DVB: dvb_net_init: return -errno on error

dvb_net_init unconditionally returns 0.  Callers such as
videobuf_dvb_register_frontend examine dvbnet->dvbdev instead of the
return value to tell whether the operation succeeded.  If it has been
set to a valid pointer, success; if it was left equal to NULL,
failure.

Alas, there is an edge case where that logic does not work as well:
when network support has been compiled out (CONFIG_DVB_NET=n), we want
dvb_net_init and related operations to behave as no-ops and always
succeed, but there is no appropriate value to which to set dvb->dvbdev
to indicate this.

Let dvb_net_init return a meaningful error code, as preparation for
adapting callers to look at that instead.

The only immediate impact of this patch should be to make the few
callers that already check for an error code from dvb_net_init behave
a little more sensibly when it fails.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] it913x ver 1.18 Turn pid filter off by caps option only
Malcolm Priestley [Fri, 30 Dec 2011 21:48:00 +0000]
[media] it913x ver 1.18 Turn pid filter off by caps option only

Turn the pid filter off by caps option only.

This is so the full stream is passed to demuxer and not limited
by pid count.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] vpif_capture.c: v4l2_device_register() is called too late in vpif_probe()
Hans Verkuil [Tue, 13 Dec 2011 08:44:42 +0000]
[media] vpif_capture.c: v4l2_device_register() is called too late in vpif_probe()

The function v4l2_device_register() is called too late in vpif_probe().
This meant that vpif_obj.v4l2_dev is accessed before it is initialized
which caused a crash.

This used to work in the past, but video_register_device() is now actually
using the v4l2_dev pointer.

Note that vpif_display.c doesn't have this bug, there v4l2_device_register()
is called at the beginning of vpif_probe.

Signed-off-by: Georgios Plakaris <gplakari@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Manjunath Hadli <Manjunath.hadli@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] marvell-cam: Make suspend/resume work on MMP2
Jonathan Corbet [Fri, 30 Dec 2011 17:13:41 +0000]
[media] marvell-cam: Make suspend/resume work on MMP2

Somehow I didn't ever quite get around to implementing suspend/resume on
the MMP2 platform; this patch fixes that little oversight.  A bit of core
work was necessary to do the right thing in the s/g DMA case.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] lmedm04 DM04/QQBOX ver 1.91 turn pid filter off by caps option only
Malcolm Priestley [Fri, 30 Dec 2011 14:33:03 +0000]
[media] lmedm04 DM04/QQBOX ver 1.91 turn pid filter off by caps option only

Turn the pid filter off by caps option only.

This is so the full stream is passed to demuxer and not limited
by pid count.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] em28xx: Reworked probe code to get rid of some hacks
Holger Nelson [Wed, 28 Dec 2011 21:55:41 +0000]
[media] em28xx: Reworked probe code to get rid of some hacks

Reworked device probing to get rid of hacks to guess the maximum size of
dvb iso transfer packets. The new code also selects the first alternate
config which supports the largest possible iso transfers for dvb.

[mchehab@redhat.com: Fix a few checkpatch.pl CodingStyle compliants]
Signed-off-by: Holger Nelson <hnelson@hnelson.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] Added USB Id & configuration array for Honestech Vidbox NW03
Gareth Williams [Sat, 24 Dec 2011 08:47:29 +0000]
[media] Added USB Id & configuration array for Honestech Vidbox NW03

Adds support for the Honestech Vidbox NW03 USB capture device.

Signed-off-by: Gareth Williams <gareth@garethwilliams.me.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] em28xx: Add Terratec Cinergy HTC USB XS to em28xx-cards.c
Holger Nelson [Sat, 24 Dec 2011 02:15:32 +0000]
[media] em28xx: Add Terratec Cinergy HTC USB XS to em28xx-cards.c

This adds support for the Terratec Cinergy HTC USB XS which is similar to
the Terratec H5 by adding the USB-ids to the table. According to
http://linux.terratec.de it uses the same ICs and DVB-C works for me
using the firmware of the H5.

Signed-off-by: Holger Nelson <hnelson@hnelson.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] dw2102: use symbolic names for dw2102_table indices
Jonathan Nieder [Fri, 23 Dec 2011 22:00:45 +0000]
[media] dw2102: use symbolic names for dw2102_table indices

dw2102_properties et al refer to entries in the USB-id table using
hard-coded indices, as in "&dw2102_table[6]", which means adding new
entries before the end of the list has the potential to introduce bugs
in code elsewhere in the file.

Use C99-style initializers with symbolic names for each index to avoid
this.  This way, other device tables wanting to reuse the USB ids can
use expressions like "&dw2102_table[TEVII_S630]" that do not change as
the entries in the table are reordered.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] drivers/staging/media/as102/as102_usb_drv.c: shift position of allocation...
Julia Lawall [Fri, 23 Dec 2011 16:39:34 +0000]
[media] drivers/staging/media/as102/as102_usb_drv.c: shift position of allocation code

The conditional after the kzalloc says that the tested expression should
never be true, but if it were, the allocated data would have to be freed.
This change just moves the allocation below the test, to avoid any
possibility of the problem.

A simplified version of the semantic match that finds the problem is as
follows: (http://coccinelle.lip6.fr)

// <smpl>
@r exists@
local idexpression x;
statement S;
identifier f1;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
x->f1
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] drivers/media/video/davinci/vpbe.c: introduce missing kfree
Julia Lawall [Fri, 23 Dec 2011 16:39:32 +0000]
[media] drivers/media/video/davinci/vpbe.c: introduce missing kfree

vpbe_dev needs to be freed before leaving the function in an error case.

A simplified version of the semantic match that finds the problem is as
follows: (http://coccinelle.lip6.fr)

// <smpl>
@r exists@
local idexpression x;
statement S;
identifier f1;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
x->f1
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] Staging: dt3155v4l: probe() always fails
Dan Carpenter [Thu, 22 Dec 2011 05:29:34 +0000]
[media] Staging: dt3155v4l: probe() always fails

There were some curly braces missing so the probe() function always
failed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] Staging: dt3155v4l: update to newer API
Dan Carpenter [Thu, 22 Dec 2011 05:29:07 +0000]
[media] Staging: dt3155v4l: update to newer API

I changed the function definitions for dt3155_queue_setup() to match the
newer API.  The dt3155_start_streaming() function didn't do anything so
I just removed it.

This silences the following gcc warnings:
drivers/staging/media/dt3155v4l/dt3155v4l.c:307:2: warning: initialization from incompatible pointer type [enabled by default]
drivers/staging/media/dt3155v4l/dt3155v4l.c:307:2: warning: (near initialization for ‘q_ops.queue_setup’) [enabled by default]
drivers/staging/media/dt3155v4l/dt3155v4l.c:311:2: warning: initialization from incompatible pointer type [enabled by default]
drivers/staging/media/dt3155v4l/dt3155v4l.c:311:2: warning: (near initialization for ‘q_ops.start_streaming’) [enabled by default]

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] media i.MX27 camera: Fix field_count handling
Javier Martin [Thu, 22 Dec 2011 15:12:00 +0000]
[media] media i.MX27 camera: Fix field_count handling

To properly detect frame loss the driver must keep
track of a frame_count.

Furthermore, field_count use was erroneous because
in progressive format this must be incremented twice.

Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] i.MX27 camera: add support for YUV420 format
Javier Martin [Wed, 14 Dec 2011 16:30:14 +0000]
[media] i.MX27 camera: add support for YUV420 format

This patch uses channel 2 of the eMMa-PrP to convert
format provided by the sensor to YUV420.

This format is very useful since it is used by the
internal H.264 encoder.

Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] atmel-isi: add code to enable/disable ISI_MCK clock
Josh Wu [Thu, 8 Dec 2011 10:18:49 +0000]
[media] atmel-isi: add code to enable/disable ISI_MCK clock

This patch
- add ISI_MCK clock enable/disable code.
- change field name in isi_platform_data structure

Signed-off-by: Josh Wu <josh.wu@atmel.com>
[g.liakhovetski@gmx.de: fix label names]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] soc-camera: change order of removing device
Lei Wen [Tue, 22 Nov 2011 14:04:29 +0000]
[media] soc-camera: change order of removing device

As our general practice, we use stream off before we close
the video node. So that the drivers its stream off function
would be called before its remove function.

But for the case for ctrl+c, the program would be force closed.
We have no chance to call that vb2 stream off from user space,
but directly call the remove function in soc_camera.

In that common code of soc_camera:

                ici->ops->remove(icd);
                if (ici->ops->init_videobuf2)
                        vb2_queue_release(&icd->vb2_vidq);

It would first call the device remove function, then release vb2,
in which stream off function is called. Thus it create different
order for the driver.

This patch change the order to make driver see the same sequence
to make it happy.

Signed-off-by: Lei Wen <leiwen@marvell.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] mt9m111: properly implement .s_crop and .s_fmt(), reset on STREAMON
Guennadi Liakhovetski [Fri, 4 Nov 2011 18:13:18 +0000]
[media] mt9m111: properly implement .s_crop and .s_fmt(), reset on STREAMON

mt9m111 camera sensors support cropping and scaling. The current
implementation is broken. For example, .s_crop() sets output frame sizes
instead of the input cropping window. This patch adds a proper implementation
of these methods. Besides it adds a sensor-disable and -enable operations
on first open() and last close() respectively, to save power while closed and
to return the camera to the default power-on state.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] mt9m111: power down most circuits when suspended
Guennadi Liakhovetski [Thu, 3 Nov 2011 11:19:18 +0000]
[media] mt9m111: power down most circuits when suspended

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] mt9m111: cleanly separate register contexts
Guennadi Liakhovetski [Thu, 3 Nov 2011 11:14:56 +0000]
[media] mt9m111: cleanly separate register contexts

Cleanly separating register contexts A and B will allow us to configure
the contexts independently.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] soc-camera: remove redundant parameter from .set_bus_param()
Guennadi Liakhovetski [Wed, 21 Sep 2011 20:52:51 +0000]
[media] soc-camera: remove redundant parameter from .set_bus_param()

The "pixfmt" parameter of the struct soc_camera_host_ops::set_bus_param()
method is redundant, because at the time, when this method is called,
pixfmt is guaranteed to be equal to icd->current_fmt->host_fmt->fourcc.
Remove this parameter and update all drivers accordingly.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] pwc: Properly fill all fields on try_fmt
Hans de Goede [Wed, 4 Jan 2012 22:46:53 +0000]
[media] pwc: Properly fill all fields on try_fmt

Before this patch the resulting values from a try_fmt were different then
those from a s_fmt with the same parameters. try_fmt simply did not
touch / fill some values like bytesperline at all.

This patch also corrects bytesperline to the proper value for a planar
format such as the YUV420P format the pwc driver produces, which is
the bytesperline value for the biggest plane, rather then those
of all planes added together.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] pwc: Get rid of compression module parameter
Hans de Goede [Wed, 4 Jan 2012 21:48:05 +0000]
[media] pwc: Get rid of compression module parameter

Instead of making this a module parameter, automatically fallback to
higher compression settings if there is not enough bandwidth.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] pwc: Remove software emulation of arbritary resolutions
Hans de Goede [Wed, 4 Jan 2012 19:58:44 +0000]
[media] pwc: Remove software emulation of arbritary resolutions

The pwc driver claims to support any resolution between 160x120
and 640x480, but emulates this by simply drawing a black border
around the image. Userspace can draw its own black border if it
really wants one.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] pwc: Remove driver specific ioctls
Hans de Goede [Sat, 31 Dec 2011 10:45:39 +0000]
[media] pwc: Remove driver specific ioctls

This stems from the v4l1 era, with v4l2 everything can be done with
standardized v4l2 API calls.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] pwc: Remove dead snapshot code
Hans de Goede [Sat, 31 Dec 2011 13:52:02 +0000]
[media] pwc: Remove dead snapshot code

The in kernel version of the pwc driver has never supported snapshot
mode, and now that we no longer support the pixfmt.priv abuse there also
no longer is a way for userspace to request it, rendering all the code in
question dead (never called), so remove it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] pwc: Remove driver specific use of pixfmt.priv in the pwc driver
Hans de Goede [Sat, 31 Dec 2011 11:47:07 +0000]
[media] pwc: Remove driver specific use of pixfmt.priv in the pwc driver

The .priv field never was intended for this, setting a framerate is
support using the standardized S_PARM ioctl.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] pwc: Remove driver specific sysfs interface
Hans de Goede [Sat, 31 Dec 2011 11:14:20 +0000]
[media] pwc: Remove driver specific sysfs interface

Setting pan/tilt should be done with v4l2 controls, like with other
cams. The button is available as a standard input device

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] pwc: Read new preset values when changing awb control to a preset
Hans de Goede [Sun, 9 Oct 2011 20:22:00 +0000]
[media] pwc: Read new preset values when changing awb control to a preset

So that events get generated for the new red + blue bal values when switching
to a preset. This allows apps to solely rely on events instead of needing
to do a query + g_ctrl on all controls when a control with the update flag
set is gets set or gets an event.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] pwc: Rework locking
Hans de Goede [Sun, 9 Oct 2011 12:16:46 +0000]
[media] pwc: Rework locking

While testing gtk-v4l's new ctrl event code, I hit the following deadlock
in the pwc driver:

Thread 1:
-Does a VIDIOC_G_CTRL
-video2_ioctl takes the modlock
-video2_ioctl calls v4l2_g_ctrl
-v4l2_g_ctrl takes the ctrl_handler lock
-v4l2_g_ctrl calls pwc_g_volatile_ctrl
-pwc_g_volatile_ctrl releases the modlock as the usb transfer can take a
 significant amount of time and we don't want to block DQBUF / QBUF too long
Thread 2:
-Does a VIDIOC_FOO_CTRL
-video2_ioctl takes the modlock
-video2_ioctl calls v4l2_foo_ctrl
-v4l2_foo_ctrl blocks while trying to take the ctrl_handler lock
Thread 1:
-Blocks while trying to re-take the modlock, as its caller will eventually
 unlock that

Now we have thread 1 waiting for the modlock while holding the ctrl_handler
lock and thread 2 waiting for the ctrl_handler lock while holding the
modlock -> deadlock.

Conclusion:
1) We cannot unlock modlock from pwc_s_ctrl / pwc_g_volatile_ctrl,
   but this can cause QBUF / DQBUF to block for up to a full second
2) After evaluating various option I came to the conclusion that pwc should
   stop using the v4l2 core locking, and instead do its own locking

Thus this patch stops pwc using the v4l2 core locking, and replaces that with
it doing its own locking where necessary.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] pwc: Make auto white balance speed and delay available as v4l2 controls
Hans de Goede [Sun, 9 Oct 2011 12:56:23 +0000]
[media] pwc: Make auto white balance speed and delay available as v4l2 controls

Currently auto white balance speed and delay are only available through custom
ioctls, which are deprecated and will be going away in 3.3 .

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] pwc: Properly mark device_hint as unused in all probe error paths
Hans de Goede [Tue, 19 Jul 2011 12:05:49 +0000]
[media] pwc: Properly mark device_hint as unused in all probe error paths

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 years ago[media] pwc: Use v4l2-device and v4l2-fh
Hans de Goede [Tue, 19 Jul 2011 10:14:22 +0000]
[media] pwc: Use v4l2-device and v4l2-fh

This is a preperation patch for adding support for control events. Actually
enabling support for control events will be done in a separate patch, as that
depends on the necessary poll changes going upstream

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>