[media] media: tuners: append $(srctree) to -I parameters

Without this we have got the warnings like following if build with "make W=1
O=/var/tmp":
  cc1: warning: drivers/media/dvb/dvb-core: No such file or directory [enabled by default]

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] media: video: append $(srctree) to -I parameters

Without this we have got the warnings like following if build with "make W=1
O=/var/tmp":
   CHECK   drivers/media/video/videobuf-vmalloc.c
   CC [M]  drivers/media/video/videobuf-vmalloc.o
 +cc1: warning: drivers/media/dvb/dvb-core: No such file or directory [enabled by default]
 +cc1: warning: drivers/media/dvb/frontends: No such file or directory [enabled by default]
 +cc1: warning: drivers/media/dvb/dvb-core: No such file or directory [enabled by default]
 +cc1: warning: drivers/media/dvb/frontends: No such file or directory [enabled by default]
   LD      drivers/media/built-in.o

Some details could be found in [1] as well.

[1] http://comments.gmane.org/gmane.linux.kbuild.devel/7733

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] s2255drv: fix some endian bugs

I don't have this hardware and I don't know the subsystem very well.  So
please review this patch carefully.  The original code definitely looks
buggy though.

Sparse complains about some endian bugs where little endian bugs are
treated as cpu endian.

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

[media] s2255drv: cleanup vidioc_enum_fmt_cap()

"f" wasn't checked consistently, so static checkers complain.  This
function is always called with a valid "f" pointer, so I have removed
the check.

Also the indenting was messed up.

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

[media] mt9p031.c included media/v4l2-subdev.h twice

drivers/media/video/mt9p031.c included 'media/v4l2-subdev.h' twice,
remove the duplicate.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] adp1653: included linux/module.h twice

drivers/media/video/adp1653.c included 'linux/module.h' twice,
remove the duplicate.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] rc/ir-raw: use kfifo_rec_ptr_1 instead of kfifo

Raw IR events are passed to the raw event thread through a kfifo. The
size of the event struct is 12 bytes, and space for 512 events is
reserved in the kfifo (6144 bytes), however this is rounded down to 4096
bytes (the next power of 2) by __kfifo_alloc().

4096 bytes is not divisible by 12 therefore if the fifo fills up a third
of a record will be written in the end of the kfifo by
ir_raw_event_store() because the recsize of the fifo is 0 (it doesn't
have records). When this is read by ir_raw_event_thread() a corrupted or
partial record will be read, and in the case of a partial record the
BUG_ON(retval != sizeof(ev)) gets hit too.

According to samples/kfifo/record-example.c struct kfifo_rec_ptr_1 can
handle records of a length between 0 and 255 bytes, so change struct
ir_raw_event_ctrl to use that instead of struct kfifo.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] media: i.MX27 camera: Add resizing support

If the attached video sensor cannot provide the
requested image size, try to use resizing engine
included in the eMMa-PrP IP.

This patch supports both averaging and bilinear
algorithms.

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>

[media] media: video: mx2_camera.c: Remove unneeded dev_dbg

csi clock frequency is already shown by:

dev_info(&pdev->dev, "MX2 Camera (CSI) driver probed, clock frequency: %ld\n",
clk_get_rate(pcdev->clk_csi));

,so no need to have the dev_dbg call to present the same information.

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

[media] media: video: mx2_camera.c: Provide error message if clk_get fails

Provide error message if clk_get fails.

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

[media] media: i.MX27 camera: more efficient discard buffer handling

Some elements of 'mx2_buffer' are grouped together in another
auxiliary structure. This way we don't need to have unused
'vb2_buffer' structures for both discard buffers.

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>

[media] media: i.MX27 camera: fix compilation warning

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>

[media] media: i.MX27 camera: return IRQ_NONE if no IRQ status bit is set

If active_bufs() list is empty and no IRQ status bit is set
we are probably dealing with a share IRQ. Return IRQ_NONE in
this case.

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>

[media] media: i.MX27 camera: Use spin_lock() inside the IRQ handler

We don't need to use spin_lock_irqsave() since there are not
any other IRQs that can race with this ISR.

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>

[media] media: i.MX27 camera: Use list_first_entry() whenever possible

Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
[g.liakhovetski@gmx.de: fix one list_first_entry() instance]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] media i.MX27 camera: handle overflows properly

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>

[media] media i.MX27 camera: improve discard buffer handling

The way discard buffer was previously handled lead
to possible races that made a buffer that was not
yet ready to be overwritten by new video data. This
is easily detected at 25fps just adding "#define DEBUG"
to enable the "memset" check and seeing how the image
is corrupted.

A new "discard" queue and two discard buffers have
been added to make them flow trough the pipeline
of queues and thus provide suitable event ordering.

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>

[media] media i.MX27 camera: add start_stream and stop_stream callbacks

Add "start_stream" and "stop_stream" callback in order to enable
and disable the eMMa-PrP properly and save CPU usage avoiding
IRQs when the device is not streaming. This also makes the driver
return 0 as the sequence number of the first frame.

Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
[g.liakhovetski@gmx.de: remove the mx27_camera_emma() macro]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] media i.MX27 camera: migrate driver to videobuf2

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>

[media] V4L: mx2_camera: remove unsupported i.MX27 DMA mode, make EMMA mandatory

The i.MX27 DMA support was introduced with the initial commit of this
driver and originally created by me. However, I never got this stable
due to the racy DMA engine and used the EMMA engine instead. As the DMA
support is most probably unused and broken in its current state, remove
it. EMMA becomes the only supported mode on i.MX27.

This also helps us get rid of another user of the legacy i.MX DMA
support and remove the dependency on ARCH_MX* macros as these are
scheduled for removal.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
[g.liakhovetski@gmx.de: remove unused goto]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] lgdt330x: fix signedness error in i2c_read_demod_bytes()

The error handling in lgdt3303_read_status() and lgdt330x_read_ucblocks()
doesn't work, because i2c_read_demod_bytes() returns a u8 and (err < 0)
is always false.

        err = i2c_read_demod_bytes(state, 0x58, buf, 1);
        if (err < 0)
                return err;

Change the return type of i2c_read_demod_bytes() to int.  Also change
the return value on error to -EIO to make (err < 0) work.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] [trivial]: Fix typo in radio-sf16fmr2.c

Correct spelling "contrls" to "controls" in
drivers/media/radio/radio-sf16fmr2.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] as102: map URB DMA addresses in the driver

On a set-top-box based on the Broadcom 7405 SoC (MIPS), the Abilis as102 driver
causes a kernel oops while trying to map the URB stream buffers DMA addresses:

CPU 0 Unable to handle kernel paging request at virtual address 007b9900,
epc == 80010cc4, ra == 8039d108

Call Trace:
[<80010cc4>] mips_dma_map_page+0x14/0x108
[<8039d108>] usb_hcd_map_urb_for_dma+0x338/0x4a8
[<8039d540>] usb_hcd_submit_urb+0x2c8/0x8cc
[<e13655d8>] as102_submit_urb_stream+0x64/0xc8 [dvb_as102]
[<e1365680>] as102_usb_start_stream+0x44/0x80 [dvb_as102]
[<e1363628>] as102_dvb_dmx_start_feed+0xb4/0x17c [dvb_as102]
[<803e20f4>] dmx_ts_feed_start_filtering+0x5c/0x134
[<803de454>] dvb_dmxdev_start_feed+0xd4/0x158
[<803dff28>] dvb_dmxdev_filter_start+0x2b8/0x448
[<803e07ac>] dvb_demux_do_ioctl+0x2a0/0x654
[<803ddc8c>] dvb_usercopy+0x124/0x204
[<800d5284>] do_vfs_ioctl+0xa0/0x6c0
[<800d58e8>] sys_ioctl+0x44/0xa8
[<8000ecfc>] stack_done+0x20/0x40

On other boxes based on older SoCs (7401) this doesn't happen, so it looks like
a bug in the kernel specific to MIPS SMP. This issue has been reproduced on
several kernel versions from 2.6.18 to 3.1.0.

Since the base DMA address and the offsets are known, it is possible to map
the DMA addresses of the URB buffers directly in the driver. This workaround
fixes the problem and has been tested on both MIPS and x86 CPUs with success.

By the way, with this fix the driver works perfectly fine on the set-top-box:
both UHF and VHF frequencies are tuned without problems, and zapping is quite
fast. SNR and signal strength reports seems to work fine, too.

The only remaining problem (on both the PC and the set-top-box) is that after
a soft reboot the device is not recognized again by the kernel. It requires
a power cycle (or a manual unplug/replug) to be recognized again. So probably
the device state is not reset properly at shut-down.

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

[media] em28xx: pre-allocate DVB isoc transfer buffers

On MIPS/ARM set-top-boxes, as well as old x86 PCs, memory allocation failures
in the em28xx driver are common, due to memory fragmentation over time, that
makes impossible to allocate large chunks of coherent memory.
A typical system with 256/512 MB of RAM fails after just 1 day of uptime (see
the old thread for detailed reports and crashlogs).

In fact, the em28xx driver allocates memory for USB isoc transfers at runtime,
as opposite to the dvb-usb drivers that allocates the USB buffers when the
device is initialized, and frees them when the device is disconnected.

Moreover, in digital mode the USB isoc transfer buffers are freed, allocated
and cleared every time the user selects a new channel, wasting time and
resources.

This patch solves both problems by allocating DVB isoc transfer buffers in
em28xx_usb_probe(), and freeing them in em28xx_usb_disconnect().
In fact, the buffers size and number depend only on the max USB packet size
that is parsed from the USB descriptors in em28xx_usb_probe(), so it can
never change for a given device.

This approach makes no sense in analog mode (as the buffer size depends on
the alternate mode selected at runtime), the patch creates two separate sets
of buffers for digital and analog modes.

For digital-only devices, USB buffers are created when the device is probed
and freed when the device is disconnected.
For analog-only devices, nothing changes: isoc buffers are created at runtime.
For hybrid devices, two sets of buffers are maintained: the digital-mode
buffers are created when the device is probed, and freed when the device is
disconnected; analog-mode buffers are created/destroyed at runtime as before.
So, in analog mode, digital and analog buffers coexists at the same time: this
can be justified by the fact that digital mode is by far more commonly used
nowadays, so it makes sense to optimize the driver for this use case scenario.

The patch has been tested in the last few days on a x86 PC and a MIPS
set-top-box, with the PCTV 290e (digital only) and the Terratec Hybrid XS
(hybrid device). With the latter, I switched several times between analog and
digital mode (Kaffeine/TvTime) with no issue at all.
I unplugged/plugged the devices several times with no problem.
Also, after over 3 days of normal usage in the MPIS set-top-box, the PCTV 290e
was still up and running.

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

[media] staging: go7007: fix mismatch in mutex lock-unlock in [read|write]_reg_fp

If go7007_usb_vendor_request() fails in write_reg_fp()
or in read_reg_fp(), the usb->i2c_lock mutex left locked.

The patch moves mutex_unlock(&usb->i2c_lock) before check
for go7007_usb_vendor_request() returned value.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] cx22702: Fix signal strength

The signal strength value returned is not quite correct, it decreases
when I increase the gain of my antenna, and vice versa. It also
doesn't span over the whole 0x0000-0xffff range. Compute a value which
at least increases when signal strength increases, and spans the whole
allowed range.

In practice I get 67% with my antenna fully amplified and 51% with
no amplification. This is close enough to what I get on my other
DVB-T adapter with the same antenna.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] it913x-fe ver 1.15 read signal strenght using reg VAR_P_INBAND

Read signal strength using VAR_P_INBAND and apply FEC preferred values.

Note this does not work on IT9137 devices even with dvb-usb-it9135-01.fw
firmware.

Config read_sl allows switch between read signal strength and signal
level.

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

[media] it913x ver 1.27 Allow PID 8192 to turn PID filter off

Allow PID 8192 to turn PID filter off in USB high speed.

The PID number is still written to the PID index and will only
turn on again if that index is set to 0.

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

[media] it913x ver 1.26 change to remove interruptible mutex locks

Some virtual I2C commands are missed along some PID filtering
commands resulting complete stall of driver.

Since dvb-usb cannot handle the -EAGAIN error and commands
generally should not be missed mutex_lock is used instead.

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

[media] convert drivers/media/* to use module_i2c_driver()

This patch converts the drivers in drivers/media/* to use the
module_i2_driver() macro which makes the code smaller and a bit simpler.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Heungjun Kim <riverful.kim@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Andrew Chew <achew@nvidia.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Cc: Johannes Obermaier <johannes.obermaier@gmail.com>
Cc: Steven Toth <stoth@kernellabs.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] gspca - zc3xx: Set the exposure at start of hv7131r

The exposure was not set when autogain was set.

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

[media] gspca - zc3xx: Fix bad sensor values when changing autogain

The setexposure added in commit 590f21680616 works only for the sensor hv7131r,
but it is called for all sensors when changing the autogain.

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

[media] gspca - zc3xx: Cleanup source

- copyright change
- use the kbuild module name for messages
- remove useless comments

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

[media] gspca - zc3xx: Remove the low level traces

The low level traces are better done by usbmon.

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

[media] gspca - zc3xx: Do automatic transfer control for hv7131r and pas202b

The bridge register 11 reports the current transfer status.
This value is used to know about a possible overflow and to adjust
the transfer parameters (registers 07 and 08).

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

[media] gspca - zc3xx: Adjust the JPEG decompression tables

As the bridge register 08 defines the JPEG compression quality,
it must be changed on JPEG quality change and also, the decompression
tables must be adjusted when the register varies.

[mchehab@redhat.com: replace a // comment by a /* */ one]
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] gspca - sonixj: Add exposure, gain and auto exposure for po2030n

The auto gain uses the knee algorithm.
Adding the setexposure control function forced to:
- rename of the previous function setexposure
- add a specific auto setting function

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

[media] gspca - sonixj: Remove the jpeg control

The get_jcomp control is rarely used and its main information,
the JPEG quality, may be found in the images.

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

[media] gspca - pac7302: Do autogain setting work

The autogain was always active.

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

[media] gspca - pac7302: Use the new video control mechanism

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

[media] gspca - pac7302: Simplify the function pkt_scan

The JPEG header is always the same, so, it does not need to be rebuild
each time a new frame is received.

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

[media] gspca - pac7302: Cleanup source

- copyright change
- use the kbuild module name for messages
- change module author
- remove '__' from the variable types
- use u8 instead of 'unsigned char'
- simplify the error messages
- remove useless initialization
- remove useless traces

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

[media] gspca - pac7302: Add new webcam 06f8:301b

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

[media] m5mols: Make subdev name independent of the I2C slave address

Initialize the subdev name properly so it doesn't have an I2C
bus and slave address appended to it.

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>

[media] noon010pc30: Make subdev name independent of the I2C slave address

Initialize the subdev name properly so it doesn't have an I2C
bus and slave address appended to it.

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>

[media] s5k6aa: Make subdev name independent of the I2C slave address

Initialize the subdev name properly so it doesn't have an I2C
bus and slave address appended to it.

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>

[media] s5p-jpeg: Adapt to new controls

Adapt to new controls (subsampling).

For encoding, the destination format now needs to be set to V4L2_PIX_FMT_JPEG
and the subsampling (4:2:2 or 4:2:0) needs to be set using the respective
control (V4L2_CID_JPEG_CHROMA_SUBSAMPLING). Required buffer size for
destination image during encoding is no longer deduced from the format (which
generally implied overestimation), but needs to be given from userspace in
sizeimage.

Not strictly related to the added controls, this patch also fixes setting the
subsampling of the destination image for decoding, depending on the destination
format.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] s5p-g2d: Added locking for writing control values to registers

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] s5p-g2d: Add HFLIP and VFLIP support

Add support for flipping the image horizontally and vertically.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] s5p-mfc: Added support for clk_prepare

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] s5p-g2d: Added support for clk_prepare

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] media: vb2: support userptr for PFN mappings

Some video devices need to use contiguous memory which is
not backed by pages as it happens with vmalloc. This patch
provides USERPTR handling for those devices.

Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] s5p-csis: Convert to the device managed resources

The devm_* functions are used in the platform device probe() for data
that is freed on driver removal. The managed device layer takes care
of undoing actions taken in the probe callback() and freeing resources
on driver detach. This eliminates the need for manually releasing
resources and simplifies error handling.

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>

[media] s5p-fimc: Replace the crop ioctls with VIDIOC_S/G_SELECTION

Add support for cropping and composition setup on the video capture
node through VIDIOC_S/G_SELECTION ioctls. S/G_CROP, CROPCAP ioctls
are still  supported for applications since the core will translate
them to *_selection handler calls.

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>

[media] s5p-fimc: Add support for VIDIOC_PREPARE_BUF/CREATE_BUFS ioctls

Add VIDIOC_PREPARE_BUF and VIDIOC_CREATE_BUFS ioctl handlers to enable
support for multi-size buffer queue.

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>

[media] s5p-fimc: Convert to the device managed resources

The devm_* functions are used in the platform device probe() for data
that is freed on driver removal. The managed device layer takes care
of undoing actions taken in the probe callback() and freeing resources
on driver detach. This eliminates the need for manually releasing
resources and simplifies error handling.

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>

[media] s5p-csis: Add explicit dependency on REGULATOR

The driver used the regulator API so it should depend on REGULATOR.

[mchehab@redhat.com: break depends on on two lines, instead of using a \]
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>

[media] s5p-fimc: convert to clk_prepare()/clk_unprepare()

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>

[media] rtl2830: __udivdi3 undefined

Il 29/02/2012 22:30, Geert Uytterhoeven ha scritto:
> http://kisskb.ellerman.id.au/kisskb/buildresult/5759200/ ERROR:
> "__udivdi3" [drivers/media/dvb/frontends/rtl2830.ko] undefined!
>
The following patch fixed the warning on my 32 bit system.

Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] s5p-fimc: Add driver documentation

Add short documentation providing the driver usage details.

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>

[media] s5p-jpeg: Add JPEG controls support

This patch replaces VIDIOC_S/G_JPEGCOMP ioctl handlers with
V4L2_CID_JPEG_QUALITY control. Additionally it enables JPEG subsampling
and the restart interval configuration through V4L2_CID_JPEG_SUBSAMPLING
and V4L2_CID_JPEG_RESTART_INTERVAL controls. For the decoder video node
only V4L2_CID_JPEG_SUBSAMPLING is available as a read-only control.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] s5p-jpeg: Use struct v4l2_fh

This patch is a prerequisite for per file handle control handlers.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] V4L: Add JPEG compression control class documentation

Add DocBook entries for the JPEG control class.

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>

[media] V4L: Add JPEG compression control class

The V4L2_CID_JPEG_CLASS control class is intended to expose various
adjustable parameters of JPEG encoders and decoders. Following controls
are defined:

 - V4L2_CID_JPEG_CHROMA_SUBSAMPLING,
 - V4L2_CID_JPEG_RESTART_INTERVAL,
 - V4L2_CID_JPEG_COMPRESSION_QUALITY,
 - V4L2_CID_JPEG_ACTIVE_MARKER.

This covers only a part of relevant standard specifications. More
controls should be added in future if required.

The purpose of V4L2_CID_JPEG_CLASS class is also to replace some
functionality covered by VIDIOC_S/G_JPEGCOMP ioctls, i.e. the JPEG
markers presence and compression quality control. The applications
and drivers should switch from the ioctl to control based API, as
described in the subsequent patches for the Media API DocBook.

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>

[media] tveeprom: update hauppauge tuner list thru 181

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

[media] rtl2830: prevent .read_status() when sleeping

Hardware is not accessible when device is sleeping.
Preventing such IOCTLs when sleep should be job of DVB CORE...

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

[media] rtl28xxu: many small tweaks

* some style issues
* remove rtl2832u device IDs
* move USB IDs to correct place

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

[media] rtl28xxu: make it compile against current Kernel

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

[media] rtl2830: correct I2C functionality

Implement I2C functionality according to real RTL2830 demod.

Do not send register page in first byte of each I2C write, instead
use logic to set page using own write when needed. Page register is
physical register 0 as generally used.

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

[media] rtl28xx: reimplement I2C adapter

It is almost perfect now!

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

[media] rtl28xx: initial support for rtl2832u

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

[media] rtl28xx: fix rtl2831u with tuner mxl5005s

Do not return error for demod attach in case of mxl5005s tuner.

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

[media] Realtek RTL28xxU serie DVB USB interface driver

For now it supports only Realtek RTL2831U chip.
RTL2831U is integrated DVB USB interface and DVB-T demod.
DVB-T demod integrated to RTL2831U is Realtek RTL2830.
Supported tuners are QT1010, MT2060 and MXL5005S.

Signed-off-by: Antti Palosaari <crope@iki.fi>
[mchehab@redhat.com: fix a small typo]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] Realtek RTL2830 DVB-T demodulator driver

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

[media] v4l: s5p-tv: hdmi: integrate with MHL

Adding support for using MHL (SiI9234 or other) chip if its configuration was
passed to HDMI by platfrom data.

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>

[media] v4l: s5p-tv: hdmi: add support for platform data

Moving configuration of s5p-hdmi peripherals from driver data to
platfrom data.

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>

[media] v4l: s5p-tv: add sii9234 driver

SiI9234 is a converter of HDMI signal into MHL. The chip is present on some
boards from Samsung S5P family. The chip's configuration procedure is based on
MHD_SiI9234 driver created by doonsoo45.kim.

The driver is using:
- i2c framework
- v4l2 framework
- runtime PM

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>

[media] v4l: s5p-tv: use devm_ functions

The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] mt2063: remove mt2063_setTune from header

Commit 99ac54125490f16f7434f82fcb73bbb88290b38e removed
the function mt2063_setTune() from mt2063.c. Remove it
also from the header file.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] MX2: Add platform definitions for eMMa-PrP device

eMMa-PrP device included in Freescale i.MX2 chips can also
be used separately to process memory buffers. This patch
provides arch glue code for the driver which provides this
functionality.

Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] MEM2MEM: Add support for eMMa-PrP mem2mem operations

i.MX2x SoCs have a PrP which is capable of resizing and format
conversion of video frames. This driver provides support for
resizing and format conversion from YUYV to YUV420.

This operation is of the utmost importance since some of these
SoCs like i.MX27 include an H.264 video codec which only
accepts YUV420 as input.

Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] [trivial] mantis: Fix typo in mantis_hif.c

Correct typo "Adater" to "Adapter" in
drivers/media/dvb/mantis/mantis_hif.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] hdpvr: update picture controls to support firmware versions > 0.15

Correctly sets the max/min/default values for the hdpvr picture
controls. The reason the current values didn't cause a problem until now
is because any firmware <= 0.15 didn't support them. The latest firmware
releases properly support picture controls and the values in the patch
are derived from the windows driver using SniffUSB2.0.

Thanks to Devin Heitmueller for helping me.

Signed-off-by: Taylor Ralph <tralph@mythtv.org>
Thanks-to: Devin Heitmueller <dheitmueller@kernellabs.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
Reviewed-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] wl128x: fix build errors when GPIOLIB is not enabled

From: Randy Dunlap <rdunlap@xenotime.net>

Fix wl128x Kconfig to depend on GPIOLIB since TI_ST also
depends on GPIOLIB.

(.text+0xe6d60): undefined reference to `st_register'
(.text+0xe7016): undefined reference to `st_unregister'
(.text+0xe70ce): undefined reference to `st_unregister'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Manjunatha Halli <manjunatha_halli@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] xc5000: declare firmware configuration structures as static const

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

[media] xc5000: drivers should specify chip revision rather than firmware

Specify chip revision at attach time rather than a firmware image.
This is a better way to ensure that the correct firmware is loaded
for the correct revision of the chip.

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

[media] xc5000: remove static dependencies on xc5000 created by previous changesets

convert the firmware configuration attach-time parameter from
a pointer to an integer so as to remove the static dependency
created by the previous changesets.

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

[media] remove unneeded #define's in xc5000.h

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

[media] tveeprom: add support for Xceive XC5000C tuner

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

[media] tuner: add support for Xceive XC5000C

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

[media] xc5000: add XC5000C_DEFAULT_FIRMWARE: dvb-fe-xc5000c-41.024.5-31875.fw

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

[media] xc5000: allow drivers to set desired firmware in xc5000_attach

newer versions of the xc5000 silicon require newer firmware
while remaining 100% driver compatible.  original versions
of the xc5000a continue to use the same firmware.

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

[media] lmedm04 ver 1.96 Turn off PID filter by default

Problems with the PID setting stalling demux on applications like VDR and MythTV.

The PID filter is now defaulted to OFF.

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

[media] dvb-core: fix DVBFE_ALGO_HW retune bug

Commit 7e07222 breaks DVBFE_ALGO_HW tuning after a retune is requested,
which causes bad tuning on my TBS 6920.

[    0.769091] pci 0000:06:00.0: [14f1:8852] type 0 class 0x000400
[   19.733530] CORE cx23885[0]: subsystem: 6920:8888, board: TurboSight TBS 6920 [card=14,autodetected]
[  762.824912] cx24116_load_firmware: FW version 1.23.86.1

7e0722215a510921cbb73ab4c37477d4dcb91bf8 [media] dvb-core: Don't pass DVBv3 parameters on tune() fops

Although re_tune is set to true when FESTATE_RETUNE occurs, it is never
set back to false which the old code used to do when !FESTATE_RETUNE.

This patch sets re_tune to false if !(state & FESTATE_RETUNE).

$ szap-s2 -a 2 "Channel 5"
reading channels from file '/home/simon/.szap/channels.conf'
zapping to 247 'Channel 5':
delivery DVB-S, modulation QPSK
sat 0, frequency 10964 MHz H, symbolrate 22000000, coderate 5/6, rolloff 0.35
vpid 0x092a, apid 0x092b, sid 0x092d
using '/dev/dvb/adapter2/frontend0' and '/dev/dvb/adapter2/demux0'
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eb33 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cec0 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cec0 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] [trivial] frontends: Fix typo in tda1004x.c

Correct spelling "alocate" to "allocate" in
drivers/media/dvb/frontends/tda1004x.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] radio/Kconfig: cleanup

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] radio-zoltrix: Convert to radio-isa

Tested with v4l2-compliance, but not with actual hardware. Contact the
linux-media mailinglist if you have this card!

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] radio-typhoon: Convert to radio-isa

Tested with v4l2-compliance, but not with actual hardware. Contact the
linux-media mailinglist if you have this card!

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] radio-trust: Convert to radio-isa

Tested with v4l2-compliance, but not with actual hardware. Contact the
linux-media mailinglist if you have this card!

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

[media] radio-terratec: Convert to radio-isa

Tested with v4l2-compliance, but not with actual hardware. Contact the
linux-media mailinglist if you have this card!

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>