Better arrange the remote controller driver items to happen after the
core support, on their proper menus, and making clerarer what is media
core options and what is media driver options.
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Commit 7a6f6c29 (cx231xx: use
URB_NO_TRANSFER_DMA_MAP) was intended to avoid mapping the DMA buffer
for URB twice. This works for the URBs allocated with usb_alloc_urb(),
as those are allocated from cohernent DMA pools, but the flag was also
added for the VBI and audio URBs, which have a manually allocated area.
This leaves the random trash in the structure after allocation as the
DMA address, corrupting memory and preventing VBI and audio from
working. Letting the USB core map the buffers solves the problem.
Signed-off-by: David Dillow <dave@thedillows.org>
Cc: Sri Deevi <srinivasa.deevi@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Most calls to cx231xx_capture_start() already use the values from
TRANSFER_TYPE, but cx231xx_capture_start() and
cx231xx_initialize_stream_xfer() were hand coding the values.
Use the named values (81 is never passed in), and simplify
cx231xx_capture_start(), as the switch statements were identical and
pcb_config->config_num is a u8, so any non-zero config got the same
result.
Signed-off-by: David Dillow <dave@thedillows.org>
Cc: Sri Deevi <srinivasa.deevi@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

The firmwares are there at the same place for a long time. However,
each time I need to remember where it is, I need to seek at the net.

The better is to just add a logic at the get_dvb_firmare script,
in order to obtain it from a reliable source.

Cc: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

changeset 2b719d7b (v4l: drop v4l2_buffer.input and V4L2_BUF_FLAG_INPUT)
broke compilation on x86_64:

	v4l2-compat-ioctl32.c: In function 'get_v4l2_buffer32':
	v4l2-compat-ioctl32.c:391:4: error: expected ')' before 'return'
	...
	v4l2-compat-ioctl32.c: In function 'put_v4l2_buffer32':
	v4l2-compat-ioctl32.c:475:4: error: expected ')' before 'return'
	...

Add the missing close parenthesis character.

Cc: Sakari Ailus <sakari.ailus@iki.fi>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Mauro Carvalho Chehab is the current maintainer of staging/media.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

After this patch, the MEDIA*_SUPPORT will be used as a filter,
exposing only devices that are pertinent to one of the 3
V4L types: webcam/grabber, radio, analog TV.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

In the past, it was possible to have either DVB or V4L2 core
as module and the other as builtin. Such config never make much
sense, and created several issues in order to make the Kconfig
dependency to work, as all drivers that depend on both (most
TV drivers) would need to be compiled as 'm'. Due to that,
the VIDEO_MEDIA config option were added.

Instead of such weird approach, let's just use the MEDIA_SUPPORT
=y or =m to select if the media subsystem core will be either
builtin or module, simplifying the building system logic.

Also, fix the tuners configuration, by enabling them only if
a tuner is required. So, if just webcam/grabbers support is
selected, no tuner option will be selected. Also, if only digital
TV is selected, no analog tuner support is selected.

That removes the need of using EXPERT customise options, when
analog TV is not selected.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Change the main items to:

<m> Multimedia support  --->
   [ ]   Cameras/video grabbers support
   [ ]   Analog TV support
   [ ]   Digital TV support
   [ ]   AM/FM radio receivers/transmitters support
   [ ]   Remote Controller support

This provides an interface that is clearer to end users that
are compiling the Kernel, and will allow the building system
to automatically unselect drivers for unused functions.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Now that the input fields got removed from the userspace API,
there's no sense to keep there at the VB struct. Remove it.

Cc: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Remove input field in struct v4l2_buffer and flag V4L2_BUF_FLAG_INPUT which
tells the former is valid. The flag is used by no driver currently.

Also change the documentation accordingly.
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

xc5000 is just a tuner, not a decoder, so both DMB-TH and ISDB-T should
work properly there: it is just a matter of teaching the driver what
saw filter should be used and how to calculate the center frequency.
Requested-by: Choi Wing Chan <chanchoiwing@gmail.com>
Cc: Steven Toth <stoth@linuxtv.org>
Cc: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

tvp5150 driver probe function doesn't check if the chip is present.
Thus the driver can be loaded without having a device.
This is dangerous and can cause kernel crash like this:

Kernel BUG at c03c0964 [verbose debug info unavailable]
Internal error: Oops - BUG: 0 [#1] PREEMPT ARM
Modules linked in:
CPU: 0    Tainted: G        W     (3.4.0-cm-t3730+ #2)
PC is at media_entity_create_link+0xe4/0xf4
LR is at isp_register_entities+0x228/0x2f4
pc : [<c03c0964>]    lr : [<c03f3b30>]    psr: 60000013
sp : cf02de50  ip : 00000000  fp : c079405c
r10: 00000000  r9 : 00000000  r8 : cf33c800
r7 : c0794834  r6 : 00000000  r5 : 00000000  r4 : cf365b48
r3 : 00000000  r2 : cf365b48  r1 : 00000000  r0 : cf33c800
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c5387d  Table: 80004019  DAC: 00000015
Process swapper (pid: 1, stack limit = 0xcf02c2f0)
Stack: (0xcf02de50 to 0xcf02e000)
de40:                                     cf360000 cf366f28 cf366218 c0794834
de60: cf365b48 00000000 cf33c800 c03f3b30 00000000 00000000 cf360890 cf3668a0
de80: 00000003 cf360000 c0785a58 00000000 cf360528 00000000 00000000 00003fff
dea0: cf360500 c03f4cdc c06cc1f4 cf360000 c0785a58 c0d27808 c07d55ec c0785a58
dec0: c031f0e0 c07d55ec c0776900 000000bb 00000000 c032040c c03203f4 c031ef0c
dee0: c0785a58 c07d55ec c0785a8c c031f0e0 c075e670 c031f0c8 cf02deb8 c0785a58
df00: c07d55ec c031f174 c07d55ec 00000000 cf02df18 c031d7a0 cf01d4a8 cf068b10
df20: 00000000 c07d55ec c07c74d0 cf34bcc0 00000000 c031ded8 c0672340 c054cd38
df40: 00000000 c07e68c0 c07d55ec 00000000 00000000 c075e670 c0776900 000000bb
df60: 00000000 c031f770 c07e68c0 00000007 c07e68c0 00000000 c075e670 c0008790
df80: 000000bb 00000006 00000006 c066e650 cf02dfa4 c07689b8 c07689b8 00000007
dfa0: c07e68c0 c073f2e8 c07689c0 000000bb 00000000 c073f2bc 00000006 00000006
dfc0: c073f2e8 00000000 c077649c c077649c c00150cc 00000013 00000000 00000000
dfe0: 00000000 c073f3cc cf02dfe8 00000000 c073f368 c00150cc 00000000 00000000
[<c03c0964>] (media_entity_create_link+0xe4/0xf4) from [<c03f3b30>] (isp_register_entities+0x228/0x2f4)
[<c03f3b30>] (isp_register_entities+0x228/0x2f4) from [<c03f4cdc>] (isp_probe+0x7ac/0x9b8)
[<c03f4cdc>] (isp_probe+0x7ac/0x9b8) from [<c032040c>] (platform_drv_probe+0x18/0x1c)
[<c032040c>] (platform_drv_probe+0x18/0x1c) from [<c031ef0c>] (really_probe+0x64/0x1d8)
[<c031ef0c>] (really_probe+0x64/0x1d8) from [<c031f0c8>] (driver_probe_device+0x48/0x60)
[<c031f0c8>] (driver_probe_device+0x48/0x60) from [<c031f174>] (__driver_attach+0x94/0x98)
[<c031f174>] (__driver_attach+0x94/0x98) from [<c031d7a0>] (bus_for_each_dev+0x54/0x80)
[<c031d7a0>] (bus_for_each_dev+0x54/0x80) from [<c031ded8>] (bus_add_driver+0xac/0x2a8)
[<c031ded8>] (bus_add_driver+0xac/0x2a8) from [<c031f770>] (driver_register+0x78/0x180)
[<c031f770>] (driver_register+0x78/0x180) from [<c0008790>] (do_one_initcall+0x34/0x184)
[<c0008790>] (do_one_initcall+0x34/0x184) from [<c073f2bc>] (do_basic_setup+0x9c/0xc8)
[<c073f2bc>] (do_basic_setup+0x9c/0xc8) from [<c073f3cc>] (kernel_init+0x64/0xec)
[<c073f3cc>] (kernel_init+0x64/0xec) from [<c00150cc>] (kernel_thread_exit+0x0/0x8)
Code: e1c812b6 e8bd87f0 e7f001f2 eafffffe (e7f001f2)

---[ end trace 3ed3c618b26ff3e8 ]---
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

This patch fixes the tvp5150_read() function to return an error in case
the I2C transaction fails.
tvp5150_probe() and other relevant driver callbacks changed to check the
status of the I2C read operations.
In case of a read error throw an error message with v4l2_err()
instead of v4l2_dbg().

[mchehab@redhat.com: Fix a small typo breaking compilation]
Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Add horizontal and vertical flip to the mem2mem_testdev driver.
Flip modes can be enabled either separately or simultaneously.
Signed-off-by: Tomasz Moń <desowin@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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

Value 0x00 was written instead of 0x10 which was aim.

Bit4 is overcurrent disable timer - ODT. According to datasheet ODT
functions are always enabled but setting it 1 is still recommended.

Thanks to Aubin Constans to pointing that bug.
Reported-by: Aubin Constans <aconstans@wyplay.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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

Dan asked "Btw, why are the sizes specified in hex instead of
decimal here?". After looking code, I agree also decimal
presentation is clearer. So lets change those.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Message length check was wrong which could cause garbage sent to LNB,
but only in case garbage got from the userspace application.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Hans-Frieder Vogt <hfvogt@gmx.net>
Signed-off-by: Thomas Mair <thomas.mair86@googlemail.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Thomas Mair <thomas.mair86@googlemail.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Thomas Mair <thomas.mair86@googlemail.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

This only adds support for the Terratec Cinergy T Stick Black device.

Changes from previous patches:
- fixed compiler warnings
- added fc0013 tuner handling to this patch
Signed-off-by: Thomas Mair <thomas.mair86@googlemail.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Instead of using a table for reg bitmask, use a macro. This should save
some data segment space.

Cc: Thomas Mair <thomas.mair86@googlemail.com>
Cc: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Changelog for ver. 0.5:
- fixed code style and naming errors

Changelog for ver. 0.4:
- removed statistics as their calculation was wrong
- fixed bug in Makefile
- indentation and code style improvements
Signed-off-by: Thomas Mair <thomas.mair86@googlemail.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

commit 9ef449c6 ("[media] rc: Postpone ISR
registration") fixed an early ISR registration on several drivers.  It did
however also introduced a bug by moving the invocation of pnp_port_start()
to the end of the probe function.

This patch fixes this issue by moving the invocation of pnp_port_start() to
an earlier stage in the probe function.

Cc: stable@vger.kernel.org
Cc: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Implement API support to return AFC frequency shift, as this device
supports it. The only other driver that implements it is tda9887,
and the frequency there is reported in Hz. So, use Hz also for this
tuner.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

There are several bugs at the signal strength algorithm:

	- It is using logical OR, instead of bit OR;
	- It doesn't wait up to 18 ms as it should;
	- the strength range is not ok.

Rework on it, in order to make it work.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

If g_tuner is called and the tuner is able to return the signal strength
via has_signal(), call the tunner callback to retrieve such data for all
tuner types, not only for radio ones.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Change the firmware logic to use request_firmware_nowait(), and
to preserve the loaded firmwares in memory, to reduce the risk
of troubles with buggy userspace apps.

With this change, while the firmware is being loaded, the driver
will return -EAGAIN to any calls. If, for some reason, firmware
failed to be loaded from userspace, it will return -ENODEV.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

If firmware is not loaded for some reason, or if it is not ready
yet, it makes no sense to honour to any DVB callbacks.

So, return -EAGAIN, as the error condition may be temporary.
If the device doesn't initialize, either because it requires a
firmware or because there's an error during init_drxk, returns
-ENODEV, to indicate such error, on all DVB callbacks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Don't allow other devices at the same I2C bus to use it during
firmware load, in order to prevent using the device while it is
not on a sane state.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

As it will be using the unlocked version of i2c_transfer during
firmware loads, make sure that the priv state routine will be
used on all I2C calls, in preparation for the next patch that
will implement an exclusive lock mode to be used during firmware
load, at drxk_init.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

The firmware blob may not be available when the driver probes.

Instead of blocking the whole kernel use request_firmware_nowait() and
continue without firmware.

This shouldn't be that bad on drx-k devices, as they all seem to have an
internal firmware. So, only the firmware update will take a little longer
to happen.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Some drivers (in particular for TV cards) need exclusive access to
their I2C buses for specific operations. Export an unlocked flavor
of i2c_transfer to give them full control.

The unlocked flavor has the following limitations:
* Obviously, caller must hold the i2c adapter lock.
* No debug messages are logged. We don't want to log messages while
  holding a rt_mutex.
* No check is done on the existence of adap->algo->master_xfer. It
  is thus the caller's responsibility to ensure that the function is
  OK to call.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

* v4l_for_linus: (44 commits)
  [media] smia: Fix compile failures
  [media]  Fix VIDIOC_DQEVENT docbook entry
  [media] s5p-fimc: Fix control creation function
  [media] s5p-mfc: Fix checkpatch error in s5p_mfc_shm.h file
  [media] s5p-mfc: Fix setting controls
  [media] v4l/s5p-mfc: added image size align in VIDIOC_TRY_FMT
  [media] v4l/s5p-mfc: corrected encoder v4l control definitions
  [media] v4l: mem2mem_testdev: Fix race conditions in driver
  [media] s5p-mfc: Bug fix of timestamp/timecode copy mechanism
  [media] cxd2820r: Fix an incorrect modulation type bitmask
  [media] em28xx: Show a warning if the board does not support remote controls
  [media] em28xx: Add remote control support for Terratec's Cinergy HTC Stick HD
  [media] USB: Staging: media: lirc: initialize spinlocks before usage
  [media] Revert "[media] media: mx2_camera: Fix mbus format handling"
  [media] bw-qcam: driver and pixfmt documentation fixes
  [media] cx88: fix firmware load on big-endian systems
  [media] cx18: support big-endian systems
  [media] ivtv: fix support for big-endian systems
  [media] tuner-core: return the frequency range of the correct tuner
  [media] v4l2-dev.c: fix g_parm regression in determine_valid_ioctls()
  ...

Conflicts:
	Documentation/DocBook/media/v4l/vidioc-create-bufs.xml
	drivers/media/video/em28xx/em28xx-cards.c

Cc: Ravi Kumar V <kumarrav@codeaurora.org>
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Make it possible for gpio-ir-recv users to choose a map name.

Cc: Ravi Kumar V <kumarrav@codeaurora.org>
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Add missing information so that udev can create an entry for gpio-ir-recv under
/dev/input/by-path/ .

Cc: Ravi Kumar V <kumarrav@codeaurora.org>
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>