Commit Graph

984 Commits

Author SHA1 Message Date
Hans Verkuil 55028695c3 media: vb2: drop VB2_BUF_STATE_PREPARED, use bool prepared/synced instead
The PREPARED state becomes a problem with the request API: a buffer
could be PREPARED but dequeued, or PREPARED and in state IN_REQUEST.

PREPARED is really not a state as such, but more a property of the
buffer. So make new 'prepared' and 'synced' bools instead to remember
whether the buffer is prepared and/or synced or not.

V4L2_BUF_FLAG_PREPARED is only set if the buffer is both synced and
prepared and in the DEQUEUED state.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-31 11:16:10 -04:00
Hans Verkuil db6e8d57e2 media: vb2: store userspace data in vb2_v4l2_buffer
The userspace-provided plane data needs to be stored in
vb2_v4l2_buffer. Currently this information is applied by
__fill_vb2_buffer() which is called by the core prepare_buf
and qbuf functions, but when using requests these functions
aren't called yet since the buffer won't be prepared until
the media request is actually queued.

In the meantime this information has to be stored somewhere
and vb2_v4l2_buffer is a good place for it.

The __fill_vb2_buffer callback now just copies the relevant
information from vb2_v4l2_buffer into the planes array.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-31 11:14:44 -04:00
Hans Verkuil 0af4e80bf2 media: videobuf2-v4l2: replace if by switch in __fill_vb2_buffer()
Replace 'if' statements by a switch in __fill_vb2_buffer()
in preparation of the next patch.

No other changes.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-31 11:13:52 -04:00
Hans Verkuil 5f89ec80f1 media: videobuf2-v4l2: move __fill_v4l2_buffer() function
Move the __fill_v4l2_buffer() to before the vb2_queue_or_prepare_buf()
function to prepare for the next two patches.

No other changes.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-31 11:13:29 -04:00
Linus Torvalds 71f3a82fab media updates for v4.19-rc1
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Merge tag 'media/v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - new Socionext MN88443x ISDB-S/T demodulator driver: mn88443x

 - new sensor drivers: ak7375, ov2680 and rj54n1cb0c

 - an old soc-camera sensor driver converted to the V4L2 framework:
   mt9v111

 - a new Voice-Coil Motor (VCM) driver: dw9807-vcm

 - some cleanups at cx25821, removing legacy unused code

 - some improvements at ddbridge driver

 - new platform driver: vicodec

 - some DVB API cleanups, removing ioctls and compat code for old
   out-of-tree drivers that were never merged upstream

 - improvements at DVB core to support frontents that support both
   Satellite and non-satellite delivery systems

 - got rid of the unused VIDIOC_RESERVED V4L2 ioctl

 - some cleanups/improvements at gl861 ISDB driver

 - several improvements on ov772x, ov7670 and ov5640, imx274, ov5645,
   and smiapp sensor drivers

 - fixes at em28xx to support dual TS devices

 - some cleanups at V4L2/VB2 locking logic

 - some API improvements at media controller

 - some cec core and drivers improvements

 - some uvcvideo improvements

 - some improvements at platform drivers: stm32-dcmi, rcar-vin, coda,
   reneseas-ceu, imx, vsp1, venus, camss

 - lots of other cleanups and fixes

* tag 'media/v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (406 commits)
  Revert "media: vivid: shut up warnings due to a non-trivial logic"
  siano: get rid of an unused return code for debugfs register
  media: isp: fix a warning about a wrong struct initializer
  media: radio-wl1273: fix return code for the polling routine
  media: s3c-camif: fix return code for the polling routine
  media: saa7164: fix return codes for the polling routine
  media: exynos-gsc: fix return code if mutex was interrupted
  media: mt9v111: Fix build error with no VIDEO_V4L2_SUBDEV_API
  media: xc4000: get rid of uneeded casts
  media: drxj: get rid of uneeded casts
  media: tuner-xc2028: don't use casts for printing sizes
  media: cleanup fall-through comments
  media: vivid: shut up warnings due to a non-trivial logic
  media: rtl28xxu: be sure that it won't go past the array size
  media: mt9v111: avoid going past the buffer
  media: vsp1_dl: add a description for cmdpool field
  media: sta2x11: add a missing parameter description
  media: v4l2-mem2mem: add descriptions to MC fields
  media: i2c: fix warning in Aptina MT9V111
  media: imx: shut up a false positive warning
  ...
2018-08-15 18:29:14 -07:00
Mauro Carvalho Chehab 8179de98cd siano: get rid of an unused return code for debugfs register
The siano's debugfs register logic is optional: it should be ok
if it fails. So, no need to check if debufs register succeeded.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-08 10:57:14 -04:00
Mauro Carvalho Chehab f1b1eabff0 media: dvb: represent min/max/step/tolerance freqs in Hz
Right now, satellite frontend drivers specify frequencies in kHz,
while terrestrial/cable ones specify in Hz. That's confusing
for developers.

However, the main problem is that universal frontends capable
of handling both satellite and non-satelite delivery systems
are appearing. We end by needing to hack the drivers in
order to support such hybrid frontends.

So, convert everything to specify frontend frequencies in Hz.

Tested-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-08-02 18:10:48 -04:00
Hans Verkuil b509d733d3 media: videobuf2-core: check for q->error in vb2_core_qbuf()
The vb2_core_qbuf() function didn't check if q->error was set. It is
checked in __buf_prepare(), but that function isn't called if the buffer
was already prepared before with VIDIOC_PREPARE_BUF.

So check it at the start of vb2_core_qbuf() as well.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-24 17:51:39 -04:00
Dave Airlie f4366e44ef drm-misc-next for 4.19:
Cross-subsystem Changes:
 - fix compile breakage on ION due to the dma-buf cleanups (Christian König)
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Merge tag 'drm-misc-next-2018-06-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 4.19:

UAPI Changes:
- Add writeback connector (Brian Starkey/Liviu Dudau)
- Add "content type" property to HDMI connectors (Stanislav Lisovskiy)

Cross-subsystem Changes:
- some devicetree Docs update
- fix compile breakage on ION due to the dma-buf cleanups (Christian König)

Core Changes:
- Reject over-sized allocation requests early (Chris Wilson)
- gem-fb-helper: Always do implicit sync (Daniel Vetter)
- dma-buf cleanups (Christian König)

Driver Changes:
- Fixes for the otm8009a panel driver (Philippe Cornu)
- Add Innolux TV123WAM panel driver support (Sandeep Panda)
- Move GEM BO to drm_framebuffer in few drivers (Daniel Stone)
- i915 pinning improvements (Chris Wilson)
- Stop consulting plane->fb/crtc in a few drivers (Ville Syrjälä)

Signed-off-by: Dave Airlie <airlied@redhat.com>

Link: https://patchwork.freedesktop.org/patch/msgid/20180621105428.GA20795@juma
2018-06-22 12:58:08 +10:00
Christian König f664a52695 dma-buf: remove kmap_atomic interface
Neither used nor correctly implemented anywhere. Just completely remove
the interface.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/226645/
2018-06-20 15:59:34 +02:00
Christian König a19741e5e5 dma_buf: remove device parameter from attach callback v2
The device parameter is completely unused because it is available in the
attachment structure as well.

v2: fix kerneldoc as well

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/226643/
2018-06-20 15:59:34 +02:00
Kees Cook fad953ce0b treewide: Use array_size() in vzalloc()
The vzalloc() function has no 2-factor argument form, so multiplication
factors need to be wrapped in array_size(). This patch replaces cases of:

        vzalloc(a * b)

with:
        vzalloc(array_size(a, b))

as well as handling cases of:

        vzalloc(a * b * c)

with:

        vzalloc(array3_size(a, b, c))

This does, however, attempt to ignore constant size factors like:

        vzalloc(4 * 1024)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  vzalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  vzalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  vzalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  vzalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
  vzalloc(
-	sizeof(TYPE) * (COUNT_ID)
+	array_size(COUNT_ID, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * COUNT_ID
+	array_size(COUNT_ID, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * (COUNT_CONST)
+	array_size(COUNT_CONST, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * COUNT_CONST
+	array_size(COUNT_CONST, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(THING) * (COUNT_ID)
+	array_size(COUNT_ID, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * COUNT_ID
+	array_size(COUNT_ID, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * (COUNT_CONST)
+	array_size(COUNT_CONST, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * COUNT_CONST
+	array_size(COUNT_CONST, sizeof(THING))
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

  vzalloc(
-	SIZE * COUNT
+	array_size(COUNT, SIZE)
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  vzalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  vzalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  vzalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  vzalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  vzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  vzalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  vzalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  vzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  vzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  vzalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  vzalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  vzalloc(C1 * C2 * C3, ...)
|
  vzalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants.
@@
expression E1, E2;
constant C1, C2;
@@

(
  vzalloc(C1 * C2, ...)
|
  vzalloc(
-	E1 * E2
+	array_size(E1, E2)
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00
Geert Uytterhoeven 4cff79e933 media: Remove depends on HAS_DMA in case of platform dependency
Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
In most cases this other symbol is an architecture or platform specific
symbol, or PCI.

Generic symbols and drivers without platform dependencies keep their
dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
cannot work anyway.

This simplifies the dependencies, and allows to improve compile-testing.

Note:
  - The various VIDEOBUF*DMA* symbols had to loose their dependencies on
    HAS_DMA, as they are selected by several individual drivers.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-28 16:17:08 -04:00
Hans Verkuil 90b2da89a0 media: videobuf2-core: don't call memop 'finish' when queueing
When a buffer is queued or requeued in vb2_buffer_done, then don't
call the finish memop. In this case the buffer is only returned to vb2,
not to userspace.

Calling 'finish' here will cause an unbalance when the queue is
canceled, since the core will call the same memop again.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-28 15:51:46 -04:00
Mauro Carvalho Chehab 782b9d2011 media: siano: use GFP_DMA only for smssdio
Right now, the Siano's core uses GFP_DMA for both USB and
SDIO variants of the driver. There's no reason to use it
for USB. So, pass GFP_DMA as a parameter during sms core
register.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-15 08:04:42 -04:00
Peter Rosin de281f7e8f media: saa7146: fix error return from master_xfer
Returning -1 (-EPERM) is not appropriate here, go with -EIO.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:30:57 -04:00
Mauro Carvalho Chehab 23ba635d45 media: lgdt330x: convert it to the new I2C binding way
Convert the driver to allow its usage with the new I2C
binding way.

Please notice that this patch doesn't convert the
callers to bind to it using the new way.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 11:09:26 -04:00
Mauro Carvalho Chehab 25d4affb0c media: flexcop-i2c: get rid of KERN_CONT
Coverity complains about werid stuff at the debug logic:

	CID 113542 (#1 of 1): Out-of-bounds access (ARRAY_VS_SINGLETON)10.
	callee_ptr_arith: Passing buf to function flexcop_i2c_write4
	which uses it as an array. This might corrupt or misinterpret
	adjacent memory locations.

Instead of directly addressing the issue there, let's rework at
the logic there.

On newer kernels, KERN_CONT does nothing, as the previous message
won't wait for a continuation. Also, both flexcop_i2c_read4() and
flexcop_i2c_write4(), called by it, will print stuff if (debug &4).

So, the way it is is too buggy.

There are two kinds of debug stuff there: deb_i2c() and a code hidden
under #ifdef DUMP_I2C_MESSAGES, with can't be selected without touching
the source code.

Also, if both debug & 0x4 and DUMP_I2C_MESSAGES, flexcop_i2c_request()
will emit two debug messages per call with different data,
with sounds messy.

Simplify it by getting rid of DUMP_I2C_MESSAGES and adding a new
flag to debug (0x40), and making the debug logic there more
consistent.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 09:01:40 -04:00
Mauro Carvalho Chehab 5ef76cb7c1 media: siano: be sure to not override devpath size
Right now, at siano driver, all places where devpath is
defined has sizeof(devpath) == 32. So, there's no practical
risc of going past devpath array anywhere.

Still, code changes might cause troubles. It also confuses
Coverity:
	CID 139059 (#1 of 1): Copy into fixed size buffer (STRING_OVERFLOW)
	9. fixed_size_dest: You might overrun the 32-character
	   fixed-size string entry->devpath by copying devpath
	   without checking the length.
	10. parameter_as_source: Note: This defect has an
	    elevated risk because the source argument
	    is a parameter of the current function.

So, explicitly limit strcmp() and strcpy() to ensure that the
devpath size (32) will be respected.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 08:55:36 -04:00
Mauro Carvalho Chehab e1b7f11b37 media: siano: get rid of __le32/__le16 cast warnings
Those are all false-positives that appear with smatch when building for
arm:

  drivers/media/common/siano/smsendian.c:38:36: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:38:36: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:38:36: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:38:36: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:38:36: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:38:36: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:47:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:47:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:47:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:47:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:47:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:47:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:67:35: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:67:35: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:67:35: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:67:35: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:84:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:84:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:84:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:84:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:84:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:84:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:98:26: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:98:26: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:98:26: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:98:26: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:99:28: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:99:28: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:99:28: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:99:28: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c💯27: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c💯27: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c💯27: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c💯27: warning: cast to restricted __le16

Get rid of them by adding explicit forced casts.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-04 08:55:05 -04:00
Hans Verkuil e605e9e339 media: v4l2-tpg-core.c: add space after %
I know, it's a measly space, but I can't stand it since the
V4L2_PIX_FMT_NV24 case before this case does it right.

So add the space in order to restore blessed symmetry and
consistency and to make the world whole again...

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-04-04 06:12:52 -04:00
Mauro Carvalho Chehab 1a086879fd media: v4l2-tpg-core: avoid buffer overflows
Fix the following warnings:
	drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:1146 gen_twopix() error: buffer overflow 'buf[1]' 8 <= 8
	drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:1152 gen_twopix() error: buffer overflow 'buf[1]' 8 <= 8

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-23 06:28:42 -04:00
Tomoki Sekiyama 564246fd3f media: siano: Fix coherent memory allocation failure on arm64
On some architectures such as arm64, siano chip based TV-tuner
USB devices are not recognized correctly due to coherent memory
allocation failure with the following error:

[  663.556135] usbcore: deregistering interface driver smsusb
[  683.624809] smsusb:smsusb_probe: board id=18, interface number 0
[  683.633530] smsusb:smsusb_init_device: smscore_register_device(...) failed, rc -12
[  683.641501] smsusb:smsusb_probe: Device initialized with return code -12
[  683.652978] smsusb: probe of 1-1:1.0 failed with error -12

This is caused by dma_alloc_coherent(NULL, ...) returning NULL in
smscoreapi.c.

To fix this error, allocate the buffer memory for the USB devices
via kmalloc() and let the USB core do the DMA mapping and free.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06 12:46:15 -05:00
Mauro Carvalho Chehab 76bf7087fb Merge commit 'v4.16-rc4~0' into patchwork
* commit 'v4.16-rc4~0': (900 commits)
  Linux 4.16-rc4
  memremap: fix softlockup reports at teardown
  libnvdimm: re-enable deep flush for pmem devices via fsync()
  MAINTAINERS: take over Kconfig maintainership
  vfio: disable filesystem-dax page pinning
  kconfig: fix line number in recursive inclusion error message
  Coccinelle: memdup: Fix typo in warning messages
  i2c: octeon: Prevent error message on bus error
  parisc: Reduce irq overhead when run in qemu
  parisc: Use cr16 interval timers unconditionally on qemu
  parisc: Check if secondary CPUs want own PDC calls
  parisc: Hide virtual kernel memory layout
  parisc: Fix ordering of cache and TLB flushes
  kconfig: Update ncurses package names for menuconfig
  kbuild/kallsyms: trivial typo fix
  kbuild: test --build-id linker flag by ld-option instead of cc-ldoption
  kbuild: drop superfluous GCC_PLUGINS_CFLAGS assignment
  kconfig: Don't leak choice names during parsing
  sh: fix build error for empty CONFIG_BUILTIN_DTB_SOURCE
  kconfig: set SYMBOL_AUTO to the symbol marked with defconfig_list
  ...
2018-03-05 07:39:06 -05:00
Mauro Carvalho Chehab 7dbdd16a79 media: vb2: Makefile: place vb2-trace together with vb2-core
We don't want a separate module for vb2-trace.

That fixes this warning:

	WARNING: modpost: missing MODULE_LICENSE() in drivers/media/common/videobuf2/vb2-trace.o

When building as module.

While here, add a SPDX header.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 11:39:04 -05:00
Masami Hiramatsu d13a0139d7 media: vb2: Fix videobuf2 to map correct area
Fixes vb2_vmalloc_get_userptr() to ioremap correct area.
Since the current code does ioremap the page address, if the offset > 0,
it does not do ioremap the last page and results in kernel panic.

This fixes to pass the size + offset to ioremap so that ioremap
can map correct area. Also, this uses __pfn_to_phys() to get the physical
address of given PFN.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Reported-by: Takao Orito <orito.takao@socionext.com>
Reported-by: Fumihiro ATSUMI <atsumi@infinitegra.co.jp>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 08:06:31 -05:00
Sakari Ailus 03703ed1de media: vb2: core: Finish buffers at the end of the stream
If buffers were prepared or queued and the buffers were released without
starting the queue, the finish mem op (corresponding to the prepare mem
op) was never called to the buffers.

Before commit a136f59c0a there was no need to do this as in such a case
the prepare mem op had not been called yet. Address the problem by
explicitly calling finish mem op when the queue is stopped if the buffer
is in either prepared or queued state.

Fixes: a136f59c0a ("[media] vb2: Move buffer cache synchronisation to prepare from queue")

Cc: stable@vger.kernel.org # for v4.13 and up
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 08:02:52 -05:00
Mauro Carvalho Chehab e77c31ed60 media: videobuf2: fix build issues with vb2-trace
There was a trouble with vb2-trace: instead of being part of
VB2 core, it was stored at V4L2 videodev. That was wrong,
as it doesn't actually belong to V4L2 core.

Now that vb2 is not part of v4l2-core, its trace functions
should be moved altogether. So, move it to its rightful
place: at videobuf2-core.

That fixes those errors:
	drivers/media/common/videobuf2/videobuf2-core.o: In function `__read_once_size':
	./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_buf_queue'
	./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_buf_queue'
	./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_buf_done'
	./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_buf_done'
	./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_qbuf'
	./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_qbuf'
	./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_dqbuf'
	./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_dqbuf'
	drivers/media/common/videobuf2/videobuf2-core.o:(__jump_table+0x10): undefined reference to `__tracepoint_vb2_buf_queue'
	drivers/media/common/videobuf2/videobuf2-core.o:(__jump_table+0x28): undefined reference to `__tracepoint_vb2_buf_done'
	drivers/media/common/videobuf2/videobuf2-core.o:(__jump_table+0x40): undefined reference to `__tracepoint_vb2_qbuf'
	drivers/media/common/videobuf2/videobuf2-core.o:(__jump_table+0x58): undefined reference to `__tracepoint_vb2_dqbuf'

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-23 05:13:53 -05:00
Sakari Ailus 80dfd71c5a media: videobuf2: Add VIDEOBUF2_V4L2 Kconfig option for VB2 V4L2 part
Videobuf2 is now separate from V4L2 and can be now built without it, at
least in principle --- enabling videobuf2 in kernel configuration attempts
to compile videobuf2-v4l2.c but that will fail if CONFIG_VIDEO_V4L2 isn't
enabled.

Solve this by adding a separate Kconfig option for videobuf2-v4l2 and make
it a separate module as well. This means that drivers now need to choose
both the appropriate videobuf2 memory type
(VIDEOBUF2_{VMALLOC,DMA_CONTIG,DMA_SG}) and VIDEOBUF2_V4L2 if they need
both.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-23 05:12:55 -05:00
Hans Verkuil ddddfa78ac media: add SPDX license info
Replace the old license information with the corresponding SPDX
license for the remaining media drivers that Cisco authored.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-14 13:17:03 -05:00
Linus Torvalds a9a08845e9 vfs: do bulk POLL* -> EPOLL* replacement
This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:

    for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
        L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
        for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
    done

with de-mangling cleanups yet to come.

NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do.  But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.

The next patch from Al will sort out the final differences, and we
should be all done.

Scripted-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-11 14:34:03 -08:00
Linus Torvalds 68c5735eaa media updates for v4.16-rc1
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Merge tag 'media/v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - videobuf2 was moved to a media/common dir, as it is now used by the
   DVB subsystem too

 - Digital TV core memory mapped support interface

 - new sensor driver: ov7740

 - several improvements at ddbridge driver

 - new V4L2 driver: IPU3 CIO2 CSI-2 receiver unit, found on some Intel
   SoCs

 - new tuner driver: tda18250

 - finally got rid of all LIRC staging drivers

 - as we don't have old lirc drivers anymore, restruct the lirc device
   code

 - add support for UVC metadata

 - add a new staging driver for NVIDIA Tegra Video Decoder Engine

 - DVB kAPI headers moved to include/media

 - synchronize the kAPI and uAPI for the DVB subsystem, removing the gap
   for non-legacy APIs

 - reduce the kAPI gap for V4L2

 - lots of other driver enhancements, cleanups, etc.

* tag 'media/v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (407 commits)
  media: v4l2-compat-ioctl32.c: make ctrl_is_pointer work for subdevs
  media: v4l2-compat-ioctl32.c: refactor compat ioctl32 logic
  media: v4l2-compat-ioctl32.c: don't copy back the result for certain errors
  media: v4l2-compat-ioctl32.c: drop pr_info for unknown buffer type
  media: v4l2-compat-ioctl32.c: copy clip list in put_v4l2_window32
  media: v4l2-compat-ioctl32.c: fix ctrl_is_pointer
  media: v4l2-compat-ioctl32.c: copy m.userptr in put_v4l2_plane32
  media: v4l2-compat-ioctl32.c: avoid sizeof(type)
  media: v4l2-compat-ioctl32.c: move 'helper' functions to __get/put_v4l2_format32
  media: v4l2-compat-ioctl32.c: fix the indentation
  media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF
  media: v4l2-ioctl.c: don't copy back the result for -ENOTTY
  media: v4l2-ioctl.c: use check_fmt for enum/g/s/try_fmt
  media: vivid: fix module load error when enabling fb and no_error_inj=1
  media: dvb_demux: improve debug messages
  media: dvb_demux: Better handle discontinuity errors
  media: cxusb, dib0700: ignore XC2028_I2C_FLUSH
  media: ts2020: avoid integer overflows on 32 bit machines
  media: i2c: ov7740: use gpio/consumer.h instead of gpio.h
  media: entity: Add a nop variant of media_entity_cleanup
  ...
2018-02-06 11:27:48 -08:00
Linus Torvalds 168fe32a07 Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull poll annotations from Al Viro:
 "This introduces a __bitwise type for POLL### bitmap, and propagates
  the annotations through the tree. Most of that stuff is as simple as
  'make ->poll() instances return __poll_t and do the same to local
  variables used to hold the future return value'.

  Some of the obvious brainos found in process are fixed (e.g. POLLIN
  misspelled as POLL_IN). At that point the amount of sparse warnings is
  low and most of them are for genuine bugs - e.g. ->poll() instance
  deciding to return -EINVAL instead of a bitmap. I hadn't touched those
  in this series - it's large enough as it is.

  Another problem it has caught was eventpoll() ABI mess; select.c and
  eventpoll.c assumed that corresponding POLL### and EPOLL### were
  equal. That's true for some, but not all of them - EPOLL### are
  arch-independent, but POLL### are not.

  The last commit in this series separates userland POLL### values from
  the (now arch-independent) kernel-side ones, converting between them
  in the few places where they are copied to/from userland. AFAICS, this
  is the least disruptive fix preserving poll(2) ABI and making epoll()
  work on all architectures.

  As it is, it's simply broken on sparc - try to give it EPOLLWRNORM and
  it will trigger only on what would've triggered EPOLLWRBAND on other
  architectures. EPOLLWRBAND and EPOLLRDHUP, OTOH, are never triggered
  at all on sparc. With this patch they should work consistently on all
  architectures"

* 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
  make kernel-side POLL... arch-independent
  eventpoll: no need to mask the result of epi_item_poll() again
  eventpoll: constify struct epoll_event pointers
  debugging printk in sg_poll() uses %x to print POLL... bitmap
  annotate poll(2) guts
  9p: untangle ->poll() mess
  ->si_band gets POLL... bitmap stored into a user-visible long field
  ring_buffer_poll_wait() return value used as return value of ->poll()
  the rest of drivers/*: annotate ->poll() instances
  media: annotate ->poll() instances
  fs: annotate ->poll() instances
  ipc, kernel, mm: annotate ->poll() instances
  net: annotate ->poll() instances
  apparmor: annotate ->poll() instances
  tomoyo: annotate ->poll() instances
  sound: annotate ->poll() instances
  acpi: annotate ->poll() instances
  crypto: annotate ->poll() instances
  block: annotate ->poll() instances
  x86: annotate ->poll() instances
  ...
2018-01-30 17:58:07 -08:00
Hans Verkuil 7952be9b6e media: drivers/media/common/videobuf2: rename from videobuf
This directory contains the videobuf2 framework, so name the
directory accordingly.

The name 'videobuf' typically refers to the old and deprecated
videobuf version 1 framework so that was confusing.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-23 08:05:02 -05:00
Mauro Carvalho Chehab 6e6a8b5a38 media: replace all <spaces><tab> occurrences
There are a lot of places where sequences of space/tabs are
found. Get rid of all spaces before tabs.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-04 13:15:05 -05:00
Mauro Carvalho Chehab 6f0e5fd391 media: vb2: add a new warning about pending buffers
There's a logic at the VB2 core that produces a WARN_ON if
there are still buffers waiting to be filled. However, it doesn't
indicate what buffers are still opened, with makes harder to
identify issues inside caller drivers.

So, add a new pr_warn() pointing to such buffers. That, together
with debug instrumentation inside the drivers can make easier to
identify where the problem is.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-03 05:30:35 -05:00
Mauro Carvalho Chehab 2e33dbb06d media: vb2: add pr_fmt() macro
Simplify the pr_foo() macros by adding a pr_fmt() macro.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-03 05:30:10 -05:00
Satendra Singh Thakur ce4686702f media: vb2: Fix a bug about unnecessary calls to queue cancel and free
Currently, there's a logic with checks if *count is non-zero,
q->num_buffers is zero and q->memory is different than memory.

That's flawed when the device is initialized, or after the
queues are freed, as it does, unnecessary calls to
__vb2_queue_cancel() and  __vb2_queue_free().

That can be avoided by making sure that q->memory is set to
VB2_MEMORY_UNKNOWN at vb2_core_queue_init(), and adding such
check at the loop.

[mchehab@s-opensource.com: fix checkpatch issues and improve the
 patch, by setting q->memory to zero at vb2_core_queue_init]

Signed-off-by: Satendra Singh Thakur <satendra.t@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-03 05:29:42 -05:00
Sakari Ailus 0097ff8e3e media: vb2: Enforce VB2_MAX_FRAME in vb2_core_reqbufs better
The check for the number of buffers requested against the maximum,
VB2_MAX_FRAME, was performed before checking queue's minimum number of
buffers. Reverse the order, thus ensuring that under no circumstances
num_buffers exceeds VB2_MAX_FRAME here.

Also add a warning of the condition.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-03 04:56:38 -05:00
Mauro Carvalho Chehab df93dc61b0 media: videobuf2-core: don't go out of the buffer range
Currently, there's no check if an invalid buffer range
is passed. However, while testing DVB memory mapped apps,
I got this:

   videobuf2_core: VB: num_buffers -2143943680, buffer 33, index -2143943647
   unable to handle kernel paging request at ffff888b773c0890
   IP: __vb2_queue_alloc+0x134/0x4e0 [videobuf2_core]
   PGD 4142c7067 P4D 4142c7067 PUD 0
   Oops: 0002 [#1] SMP
   Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables bluetooth rfkill ecdh_generic binfmt_misc rc_dvbsky sp2 ts2020 intel_rapl x86_pkg_temp_thermal dvb_usb_dvbsky intel_powerclamp dvb_usb_v2 coretemp m88ds3103 kvm_intel i2c_mux dvb_core snd_hda_codec_hdmi crct10dif_pclmul crc32_pclmul videobuf2_vmalloc videobuf2_memops snd_hda_intel ghash_clmulni_intel videobuf2_core snd_hda_codec rc_core mei_me intel_cstate snd_hwdep snd_hda_core videodev intel_uncore snd_pcm mei media tpm_tis tpm_tis_core intel_rapl_perf tpm snd_timer lpc_ich snd soundcore kvm irqbypass libcrc32c i915 i2c_algo_bit drm_kms_helper
   e1000e ptp drm crc32c_intel video pps_core
   CPU: 3 PID: 1776 Comm: dvbv5-zap Not tainted 4.14.0+ #78
   Hardware name:                  /NUC5i7RYB, BIOS RYBDWi35.86A.0364.2017.0511.0949 05/11/2017
   task: ffff88877c73bc80 task.stack: ffffb7c402418000
   RIP: 0010:__vb2_queue_alloc+0x134/0x4e0 [videobuf2_core]
   RSP: 0018:ffffb7c40241bc60 EFLAGS: 00010246
   RAX: 0000000080360421 RBX: 0000000000000021 RCX: 000000000000000a
   RDX: ffffb7c40241bcf4 RSI: ffff888780362c60 RDI: ffff888796d8e130
   RBP: ffffb7c40241bcc8 R08: 0000000000000316 R09: 0000000000000004
   R10: ffff888780362c00 R11: 0000000000000001 R12: 000000000002f000
   R13: ffff8887758be700 R14: 0000000000021000 R15: 0000000000000001
   FS:  00007f2849024740(0000) GS:ffff888796d80000(0000) knlGS:0000000000000000
   CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
   CR2: ffff888b773c0890 CR3: 000000043beb2005 CR4: 00000000003606e0
   Call Trace:
    vb2_core_reqbufs+0x226/0x420 [videobuf2_core]
    dvb_vb2_reqbufs+0x2d/0xc0 [dvb_core]
    dvb_dvr_do_ioctl+0x98/0x1d0 [dvb_core]
    dvb_usercopy+0x53/0x1b0 [dvb_core]
    ? dvb_demux_ioctl+0x20/0x20 [dvb_core]
    ? tty_ldisc_deref+0x16/0x20
    ? tty_write+0x1f9/0x310
    ? process_echoes+0x70/0x70
    dvb_dvr_ioctl+0x15/0x20 [dvb_core]
    do_vfs_ioctl+0xa5/0x600
    SyS_ioctl+0x79/0x90
    entry_SYSCALL_64_fastpath+0x1a/0xa5
   RIP: 0033:0x7f28486f7ea7
   RSP: 002b:00007ffc13b2db18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
   RAX: ffffffffffffffda RBX: 000055b10fc06130 RCX: 00007f28486f7ea7
   RDX: 00007ffc13b2db48 RSI: 00000000c0086f3c RDI: 0000000000000007
   RBP: 0000000000000203 R08: 000055b10df1e02c R09: 000000000000002e
   R10: 0036b42415108357 R11: 0000000000000246 R12: 0000000000000000
   R13: 00007f2849062f60 R14: 00000000000001f1 R15: 00007ffc13b2da54
   Code: 74 0a 60 8b 0a 48 83 c0 30 48 83 c2 04 89 48 d0 89 48 d4 48 39 f0 75 eb 41 8b 42 08 83 7d d4 01 41 c7 82 ec 01 00 00 ff ff ff ff <4d> 89 94 c5 88 00 00 00 74 14 83 c3 01 41 39 dc 0f 85 f1 fe ff
   RIP: __vb2_queue_alloc+0x134/0x4e0 [videobuf2_core] RSP: ffffb7c40241bc60
   CR2: ffff888b773c0890

So, add a sanity check in order to prevent going past array.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-01-03 04:54:44 -05:00
Fengguang Wu 201b56737f media: fix semicolon.cocci warnings
drivers/media/common/videobuf/videobuf2-core.c:2525:34-35: Unneeded semicolon

 Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

Fixes: 03fbdb2fc2 ("media: move videobuf2 to drivers/media/common")

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
2017-12-28 14:25:07 -05:00
Mauro Carvalho Chehab fada193559 media: move dvb kAPI headers to include/media
Except for DVB, all media kAPI headers are at include/media.

Move the headers to it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-28 13:16:01 -05:00
Mauro Carvalho Chehab 03fbdb2fc2 media: move videobuf2 to drivers/media/common
Now that VB2 is used by both V4L2 and DVB core, move it to
the common part of the subsystem.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-28 11:17:29 -05:00
Mauro Carvalho Chehab b29fd5639c media: v4l2-tpg.h: rename color structs
The color structs right now are just "color" and "color16".
That may lead into conflicts, and don't define precisely what
they meant. As those are used by two drivers (vivid and vimc),
this is even on a somewhat public header!

So rename them to:
	color ->  tpg_rbg_color8
	color16 ->  tpg_rbg_color16

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 12:29:05 -05:00
Mauro Carvalho Chehab 1beb623bda media: v4l2-tpg*.h: move headers to include/media/tpg and merge them
The v4l2-tpg*.h headers are meant to be used only internally by
vivid and vimc. There's no sense keeping them together with the
V4L2 kAPI headers. Also, one header includes the other as they're
meant to be used together. So, merge them.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-18 12:28:35 -05:00
Gustavo A. R. Silva 3ee6229f1a media: siano: fix a potential integer overflow
Add suffix ULL to constant 65535 in order to avoid a potential
integer overflow. This constant is used in a context that
expects an expression of type u64.

Addresses-Coverity-ID: 1056806

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-14 09:50:12 -05:00
Mauro Carvalho Chehab 1e6f57b2b4 media: siano: add SPDX markups
As we're now using SPDX identifiers, add the proper SPDX,
better identifying the licenses whith apply to the source code.

As we're now using the short license, it doesn't make sense to
keep the original license text.

Also, fix MODULE_LICENSE to properly identify GPL v2
at the Siano's common driver. Some codes there are licensed
on GPL v2 or latter, while others are GPL v2 only. So,
in order to reflect the common license that applies to
everything, the module itself should be GPLv2 only.

While here, use the Kernel's coding style for the comments
with copyright info.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-11 07:44:07 -05:00
Jérémy Lefaure e40d14a897 media: use ARRAY_SIZE
Using the ARRAY_SIZE macro improves the readability of the code. Also,
it is not always useful to use a variable to store this constant
calculated at compile time.

Found with Coccinelle with the following semantic patch:
@r depends on (org || report)@
type T;
T[] E;
position p;
@@
(
 (sizeof(E)@p /sizeof(*E))
|
 (sizeof(E)@p /sizeof(E[...]))
|
 (sizeof(E)@p /sizeof(T))
)

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-08 10:11:00 -05:00
Al Viro c23e0cb81e media: annotate ->poll() instances
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-11-27 16:20:06 -05:00
Mauro Carvalho Chehab 929b99ed9b media: siano: get rid of documentation warnings
The Siano driver doesn't use kernel-doc markups. While it
would be wanderful to convert to use it, it is probably
not worth the time.

So, instead of solving all problems there, just make
sure that it won't produce dozens of warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-11-27 08:40:36 -05:00
Kees Cook 841b86f328 treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
With all callbacks converted, and the timer callback prototype
switched over, the TIMER_FUNC_TYPE cast is no longer needed,
so remove it. Conversion was done with the following scripts:

    perl -pi -e 's|\(TIMER_FUNC_TYPE\)||g' \
        $(git grep TIMER_FUNC_TYPE | cut -d: -f1 | sort -u)

    perl -pi -e 's|\(TIMER_DATA_TYPE\)||g' \
        $(git grep TIMER_DATA_TYPE | cut -d: -f1 | sort -u)

The now unused macros are also dropped from include/linux/timer.h.

Signed-off-by: Kees Cook <keescook@chromium.org>
2017-11-21 16:35:54 -08:00
Linus Torvalds 5d352e69c6 media updates for v4.15-rc1
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Merge tag 'media/v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - Documentation for digital TV (both kAPI and uAPI) are now in sync
   with the implementation (except for legacy/deprecated ioctls). This
   is a major step, as there were always a gap there

 - New sensor driver: imx274

 - New cec driver: cec-gpio

 - New platform driver for rockship rga and tegra CEC

 - New RC driver: tango-ir

 - Several cleanups at atomisp driver

 - Core improvements for RC, CEC, V4L2 async probing support and DVB

 - Lots of drivers cleanup, fixes and improvements.

* tag 'media/v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (332 commits)
  dvb_frontend: don't use-after-free the frontend struct
  media: dib0700: fix invalid dvb_detach argument
  media: v4l2-ctrls: Don't validate BITMASK twice
  media: s5p-mfc: fix lockdep warning
  media: dvb-core: always call invoke_release() in fe_free()
  media: usb: dvb-usb-v2: dvb_usb_core: remove redundant code in dvb_usb_fe_sleep
  media: au0828: make const array addr_list static
  media: cx88: make const arrays default_addr_list and pvr2000_addr_list static
  media: drxd: make const array fastIncrDecLUT static
  media: usb: fix spelling mistake: "synchronuously" -> "synchronously"
  media: ddbridge: fix build warnings
  media: av7110: avoid 2038 overflow in debug print
  media: Don't do DMA on stack for firmware upload in the AS102 driver
  media: v4l: async: fix unregister for implicitly registered sub-device notifiers
  media: v4l: async: fix return of unitialized variable ret
  media: imx274: fix missing return assignment from call to imx274_mode_regs
  media: camss-vfe: always initialize reg at vfe_set_xbar_cfg()
  media: atomisp: make function calls cleaner
  media: atomisp: get rid of storage_class.h
  media: atomisp: get rid of wrong stddef.h include
  ...
2017-11-15 20:30:12 -08:00
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Kees Cook 12a83612ed media: saa7146: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-31 06:40:08 -04:00
Kees Cook 3e3149173f media: media/saa7146: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly. This requires adding a pointer to
hold the timer's target file, as there won't be a way to pass this in the
future.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-31 06:38:53 -04:00
Hans Verkuil b89fdb5e50 [media] v4l2-tpg: add Y10 and Y12 support
Support the 10 and 12 bit luma formats.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2017-10-04 16:58:39 -03:00
Bhumika Goyal ad62701720 [media] saa7146: make saa7146_use_ops const
Make these const as they are not modified in the file referencing them.
They are only used when their function pointer fields invokes a
function and therefore none of the structure fields are getting modified.
Also, add a const to the declaration in the header.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2017-10-04 16:57:33 -03:00
Markus Elfring af28c99628 media: drivers: Adjust checks for null pointers
The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written !…

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
2017-09-23 08:20:57 -04:00
Markus Elfring 2d3da59ff1 media: drivers: improve a size determination
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

This issue was detected by using the Coccinelle software.

[mchehab@s-opensoure.com: merge similar patches into one]

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
2017-09-23 08:20:57 -04:00
Markus Elfring c38e8657a4 media: drivers: delete error messages for failed memory allocation
Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

[mchehab@s-opensource.com: fold several similar patches into one]

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-23 08:19:55 -04:00
Arvind Yadav 11c2078bbf media: saa7146: constify videobuf_queue_ops structures
videobuf_queue_ops are not supposed to change at runtime. All functions
working with videobuf_queue_ops provided by <media/videobuf-core.h> work
with const videobuf_queue_ops. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 14:29:51 -04:00
Sean Young 6d741bfed5 media: rc: rename RC_TYPE_* to RC_PROTO_* and RC_BIT_* to RC_PROTO_BIT_*
RC_TYPE is confusing and it's just the protocol. So rename it.

Suggested-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Sean Young <sean@mess.org>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 10:02:48 -04:00
Sean Young 518f4b26be media: rc-core: rename input_name to device_name
When an ir-spi is registered, you get this message.

rc rc0: Unspecified device as /devices/platform/soc/3f215080.spi/spi_master/spi32766/spi32766.128/rc/rc0

"Unspecified device" refers to input_name, which makes no sense for IR
TX only devices. So, rename to device_name.

Also make driver_name const char* so that no casts are needed anywhere.

Now ir-spi reports:

rc rc0: IR SPI as /devices/platform/soc/3f215080.spi/spi_master/spi32766/spi32766.128/rc/rc0

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:43:52 -04:00
Hans Verkuil 079c6eaf80 media: v4l2-tpg: fix the SMPTE-2084 transfer function
The SMPTE-2084 transfer functions maps to the luminance range of
0-10000 cd/m^2. Other transfer functions use the traditional range of
0-100 cd/m^2.

I didn't take this into account so the luminance was off by a factor of
100.

Since qv4l2 made the same mistake in reverse I never noticed this until
I tested with actual SMPTE-2084 video.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-08 07:05:09 -04:00
Hans Verkuil eada47597b media: v4l2-tpg-core.c: fix typo in bt2020_full matrix
My eye fell on this wrong coefficient in the bt2020_full matrix.
The bt2020 matrix (limited range) is OK.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-08 06:20:20 -04:00
Gustavo A. R. Silva ea925e4db1 media: saa7146: constify i2c_algorithm structure
Check for i2c_algorithm structures that are only stored in
the algo field of an i2c_adapter structure. This field is
declared const, so i2c_algorithm structures that have this
property can be declared as const also.

This issue was identified using Coccinelle and the following
semantic patch:

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct i2c_algorithm i@p = { ... };

@ok@
identifier r.i;
struct i2c_adapter e;
position p;
@@
e.algo = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct i2c_algorithm i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-20 14:55:14 -04:00
Bhumika Goyal c5db7475a8 [media] b2c2: constify nxt200x_config structure
Declare nxt200x_config structure as const as it is only passed as
an argument to the function dvb_attach. dvb_attach calls its first
argument on the rest of its arguments. The first argument of
dvb_attach in the changed case is nxt200x_attach and the parameter of
this function to which the object reference is passed is of type
const. So, nxt200x_config structures having this property can be made
const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   7566	    568	      0	   8134	   1fc6	common/b2c2/flexcop-fe-tuner.o

File size after:
   text	   data	    bss	    dec	    hex	filename
   7582	    536	      0	   8118	   1fb6	common/b2c2/flexcop-fe-tuner.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-17 12:18:18 -03:00
Hans Verkuil 4aed35ca73 [media] v4l2-tpg: don't clamp XV601/709 to lim range
The XV601/709 encodings are special: they signal limited range, but use the full range
to encode a larger gamut with R', G' and B' values outside the [0-1] range.

So don't clamp to limited range for these two encodings.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 14:58:06 -03:00
Geliang Tang d5d116c4db [media] saa7146: use setup_timer
Use setup_timer() instead of init_timer() to simplify the code.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 14:46:12 -03:00
Mauro Carvalho Chehab 446aba663b [media] tveeprom: get rid of unused arg on tveeprom_hauppauge_analog()
tveeprom_hauppauge_analog() used to need the I2C adapter in
order to print debug messages. As it now uses pr_foo() facilities
since commit 6037b3ca28 ("[media] tveeprom: print log messages
using pr_foo()"), the first argument of the function is not
needed anymore.

So, get rid of it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-03 07:35:02 -03:00
Arnd Bergmann 30f895a9e1 [media] b2c2: use IS_REACHABLE() instead of open-coding it
The FE_SUPPORTED() macro is basically the same as IS_REACHABLE, except
that it causes a warning with gcc-7:

common/b2c2/flexcop-fe-tuner.c:30:1: error: this use of "defined" may not be portable [-Werror=expansion-to-defined]
common/b2c2/flexcop-fe-tuner.c:30:1: error: this use of "defined" may not be portable [-Werror=expansion-to-defined]
common/b2c2/flexcop-fe-tuner.c:30:1: error: this use of "defined" may not be portable [-Werror=expansion-to-defined]

Using IS_REACHABLE() to define it avoids the warning.

Fixes: 3785bc170f ("[media] b2c2: break it into common/pci/usb directories")

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03 07:12:59 -02:00
Andi Shyti 0f7499fddb [media] rc-main: assign driver type during allocation
The driver type can be assigned immediately when an RC device
requests to the framework to allocate the device.

This is an 'enum rc_driver_type' data type and specifies whether
the device is a raw receiver or scancode receiver. The type will
be given as parameter to the rc_allocate_device device.

Change accordingly all the drivers calling rc_allocate_device()
so that the device type is specified during the rc device
allocation. Whenever the device type is not specified, it will be
set as RC_DRIVER_SCANCODE which was the default '0' value.

Suggested-by: Sean Young <sean@mess.org>
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30 13:59:57 -02:00
Sean Young 8c34b5c4c8 [media] rc: raw IR drivers cannot handle cec, unknown or other
unknown and other are for IR protocols for which we have no decoder,
so the raw IR drivers have no chance of generating them. cec is not
an IR protocol.

Signed-off-by: Sean Young <sean@mess.org>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30 12:40:50 -02:00
Sakari Ailus bcb63314e2 [media] media: Drop FSF's postal address from the source code files
Drop the FSF's postal address from the source code files that typically
contain mostly the license text. Of the 628 removed instances, 578 are
outdated.

The patch has been created with the following command without manual edits:

git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \
	drivers/media/ include/media|while read i; do i=$i perl -e '
open(F,"< $ENV{i}");
$a=join("", <F>);
$a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m
	&& $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m;
close(F);
open(F, "> $ENV{i}");
print F $a;
close(F);'; done

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2017-01-27 11:38:09 -02:00
Ricardo Ribalda 94868d612f [media] v4l2-tpg: Init hv_enc field with a valid value
Zero is not a valid value for hsv_enc. Set the field to a valid
initial value.

This is not a problem for vivid, because it sets the field to 180 via
tpg_s_hsv_enc() on the control initialization, but it might be a source
of errors for other drivers that use this code.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-29 12:12:13 -02:00
Andrey Utkin 59eba2d1ec [media] saa7146: Fix for while releasing video buffers
Fix this bug:
	"[BUG] process stuck when closing saa7146 [dvb_ttpci]"

Release queued DMA buffers when ending streaming, so that
videobuf_waiton() doesn't block forever.

As reported, this fixes avoids occasional lockup of process reading from
video device, which manifests in such log:

INFO: task ffmpeg:9864 blocked for more than 120 seconds.
      Tainted: P           O    4.6.7 #3
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
ffmpeg          D ffff880177cc7b00     0  9864      1 0x00000000
 ffff880177cc7b00 0000000000000202 0000000000000202 ffffffff8180b4c0
 ffff88019d79e4c0 ffffffff81064050 ffff880177cc7ae0 ffff880177cc8000
 ffff880177cc7b18 ffff8801fd41d648 ffff8802307acca0 ffff8802307acc70
Call Trace:
 [<ffffffff81064050>] ? preempt_count_add+0x89/0xab
 [<ffffffff81477215>] schedule+0x86/0x9e
 [<ffffffff81477215>] ? schedule+0x86/0x9e
 [<ffffffffa0fe1c96>] videobuf_waiton+0x131/0x15e [videobuf_core]
 [<ffffffff8107727b>] ? wait_woken+0x6d/0x6d
 [<ffffffffa1017be9>] saa7146_dma_free+0x39/0x5b [saa7146_vv]
 [<ffffffffa10186c4>] buffer_release+0x2a/0x3e [saa7146_vv]
 [<ffffffffa0fee4a8>] videobuf_vm_close+0xd8/0x103 [videobuf_dma_sg]
 [<ffffffff8112049e>] remove_vma+0x25/0x4d
 [<ffffffff81121a32>] exit_mmap+0xce/0xf7
 [<ffffffff8104381d>] mmput+0x4e/0xe2
 [<ffffffff810491fd>] do_exit+0x372/0x920
 [<ffffffff81049813>] do_group_exit+0x3c/0x98
 [<ffffffff810522ef>] get_signal+0x4e8/0x56e
 [<ffffffff810710a5>] ? task_dead_fair+0xd/0xf
 [<ffffffff81017020>] do_signal+0x23/0x521
 [<ffffffff81479e82>] ? _raw_spin_unlock_irqrestore+0x13/0x25
 [<ffffffff8109710d>] ? hrtimer_try_to_cancel+0xd7/0x104
 [<ffffffff8109b306>] ? ktime_get+0x4c/0xa1
 [<ffffffff81096ea6>] ? update_rmtp+0x46/0x5b
 [<ffffffff81097ce0>] ? hrtimer_nanosleep+0xe4/0x10e
 [<ffffffff81096e3c>] ? hrtimer_init+0xeb/0xeb
 [<ffffffff810014f8>] exit_to_usermode_loop+0x4f/0x93
 [<ffffffff810019fe>] syscall_return_slowpath+0x3b/0x46
 [<ffffffff8147a355>] entry_SYSCALL_64_fastpath+0x8d/0x8f

Reported-by: Philipp Matthias Hahn <pmhahn+video@pmhahn.de>
Tested-by: Philipp Matthias Hahn <pmhahn+video@pmhahn.de>
Signed-off-by: Andrey Utkin <andrey_utkin@fastmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-23 19:52:12 -02:00
Max Kellermann bd336e6344 [media] dvb: make DVB frontend *_ops instances "const"
These are immutable.  Making them "const" allows the compiler to move
them to the "rodata" section.

Note that cxd2841er_t_c_ops cannot be made "const", because
cxd2841er_attach() modifies it.  Ouch!

[mchehab@s-opensource.com: fix merge conflicts]
Signed-off-by: Max Kellermann <max.kellermann@gmail.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 15:00:22 -02:00
Mauro Carvalho Chehab 6037b3ca28 [media] tveeprom: print log messages using pr_foo()
Unfortunately, the callers of tveeprom don't do the right
thing to initialize the device. So, it produces log messages
like:

[  267.533010]  (null): Hauppauge model 42012, rev C186, serial# 2819348
[  267.533012]  (null): tuner model is Philips FQ1236 MK3 (idx 86, type 43)
[  267.533013]  (null): TV standards NTSC(M) (eeprom 0x08)
[  267.533014]  (null): audio processor is MSP3445 (idx 12)
[  267.533015]  (null): has radio

So, replace it to pr_foo(), as it should work fine.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 10:13:11 -02:00
Ricardo Ribalda Delgado 429175e41f [media] vivid: Add support for HSV encoding
Support HSV encoding. Most of the logic is replicated from ycbcr_enc.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 15:54:16 -02:00
Ricardo Ribalda Delgado f1eb926d1d [media] vivid: Local optimization
Avoid duplicated clamps when possible.

Suggested-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 15:51:23 -02:00
Ricardo Ribalda Delgado 7a20f3985f [media] vivid: Fix YUV555 and YUV565 handling
precalculate_color() had a optimization that avoided duplicated
conversion for YUV formats. This optimization did not take into
consideration YUV444, YUV555, YUV565 or limited range quantization.

This patch keeps the optimization, but fixes the wrong handling.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 15:50:58 -02:00
Ricardo Ribalda Delgado ca2b32da59 [media] vivid: Introduce TPG_COLOR_ENC_LUMA
Simplifies handling of Gray formats.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 15:50:27 -02:00
Ricardo Ribalda Delgado 25e9007349 [media] vivid: Rename variable
r_y and g_u now also contain the H and V components on the HSV formats.
Rename the variables to reflect this.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 15:49:46 -02:00
Ricardo Ribalda Delgado 54fb153483 [media] vivid: Add support for HSV formats
This patch adds support for V4L2_PIX_FMT_HSV24 and V4L2_PIX_FMT_HSV32.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 15:49:14 -02:00
Ricardo Ribalda Delgado 646895e936 [media] vivid: Code refactor for color encoding
Replace is_yuv with color_enc Which can be used by other
color encodings such us HSV.

This change should ease the review of the following patches.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 15:47:32 -02:00
Mauro Carvalho Chehab 7cda4c5bae [media] tveeprom: use dev_foo() for printk messages
Instead of calling a V4L-specific macro, do the right thing
and use the dev_foo() macros.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 10:09:05 -02:00
Mauro Carvalho Chehab 2a3edc5d55 [media] common: don't break long lines
Due to the 80-cols restrictions, and latter due to checkpatch
warnings, several strings were broken into multiple lines. This
is not considered a good practice anymore, as it makes harder
to grep for strings at the source code.

As we're right now fixing other drivers due to KERN_CONT, we need
to be able to identify what printk strings don't end with a "\n".
It is a way easier to detect those if we don't break long lines.

So, join those continuation lines.

The patch was generated via the script below, and manually
adjusted if needed.

</script>
use Text::Tabs;
while (<>) {
	if ($next ne "") {
		$c=$_;
		if ($c =~ /^\s+\"(.*)/) {
			$c2=$1;
			$next =~ s/\"\n$//;
			$n = expand($next);
			$funpos = index($n, '(');
			$pos = index($c2, '",');
			if ($funpos && $pos > 0) {
				$s1 = substr $c2, 0, $pos + 2;
				$s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2;
				$s2 =~ s/^\s+//;

				$s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne "");

				print unexpand("$next$s1\n");
				print unexpand("$s2\n") if ($s2 ne "");
			} else {
				print "$next$c2\n";
			}
			$next="";
			next;
		} else {
			print $next;
		}
		$next="";
	} else {
		if (m/\"$/) {
			if (!m/\\n\"$/) {
				$next=$_;
				next;
			}
		}
	}
	print $_;
}
</script>

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 10:05:06 -02:00
Mauro Carvalho Chehab d9942ad022 [media] b2c2: don't break long lines
Due to the 80-cols restrictions, and latter due to checkpatch
warnings, several strings were broken into multiple lines. This
is not considered a good practice anymore, as it makes harder
to grep for strings at the source code.

As we're right now fixing other drivers due to KERN_CONT, we need
to be able to identify what printk strings don't end with a "\n".
It is a way easier to detect those if we don't break long lines.

So, join those continuation lines.

The patch was generated via the script below, and manually
adjusted if needed.

</script>
use Text::Tabs;
while (<>) {
	if ($next ne "") {
		$c=$_;
		if ($c =~ /^\s+\"(.*)/) {
			$c2=$1;
			$next =~ s/\"\n$//;
			$n = expand($next);
			$funpos = index($n, '(');
			$pos = index($c2, '",');
			if ($funpos && $pos > 0) {
				$s1 = substr $c2, 0, $pos + 2;
				$s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2;
				$s2 =~ s/^\s+//;

				$s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne "");

				print unexpand("$next$s1\n");
				print unexpand("$s2\n") if ($s2 ne "");
			} else {
				print "$next$c2\n";
			}
			$next="";
			next;
		} else {
			print $next;
		}
		$next="";
	} else {
		if (m/\"$/) {
			if (!m/\\n\"$/) {
				$next=$_;
				next;
			}
		}
	}
	print $_;
}
</script>

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 08:51:32 -02:00
Mauro Carvalho Chehab 6dd23d4c95 [media] cx2341x: mark printk continuation lines as such
This driver has printk continuation lines for debugging purposes.

Since commit 563873318d ("Merge branch 'printk-cleanups'"),
this won't work as expected anymore. So, let's add KERN_CONT to
those lines.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 08:51:30 -02:00
Mauro Carvalho Chehab 7887d3710b [media] flexcop-i2c: mark printk continuation lines as such
This driver has printk continuation lines for debugging purposes.

Since commit 563873318d ("Merge branch 'printk-cleanups'"),
this won't work as expected anymore. So, let's add KERN_CONT to
those lines.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 08:51:29 -02:00
Mauro Carvalho Chehab b676e7316a [media] dvb-core: move dvb_filter out of the DVB core
The dvb_filter.c can hardly be considered as part of the DVB
core. More than half of the code there is commented out by
av7110 and ttusb_dec.

On the latter, just two small helper functions and a struct
definition is used.

Being part of the core means that it would require an
amount of work to fix issues in it, like bad printk's
on it, and to document it on some future, like other kAPI
headers. It simply not worth the effort for something that
seems to be deprecated, as no new drivers use it.

So, move it out of the core, by moving it to pci/ttpci
directory, where av7110 driver is kept, and copy the two
routines used by ttyusb_dec directly into its code.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 08:44:08 -02:00
Hans Verkuil 9ddbf68d26 [media] v4l2-tpg-core: drop SYCC, use higher precision 601 conversion matrix
The SYCC Y'CbCr encoding is identical to the 601 encoding. Since the
SYCC define is about to be removed for use in the kernel we need to
drop it in the TPG code as well.

This patch also adds a 4th decimal to the 601 conversion matrix.
That was specified by the sYCC spec and it makes sense to use this
across the board.

[mchehab@s-opensource.com: fix conflicts with LaTeX math expression patch]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-24 08:36:11 -03:00
Hans Verkuil 85a5f85ef9 [media] v4l2-tpg: ignore V4L2_DV_RGB_RANGE setting for YUV formats
The V4L2_DV_RGB_RANGE_* settings are, as the name says, for RGB formats only.
So they should be ignored for non-RGB formats.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 16:16:52 -03:00
Helen Mae Koike Fornazier e07d46e7e0 [media] tpg: Export the tpg code from vivid as a module
The test pattern generator will be used by other drivers as the virtual
media controller (vimc)

Signed-off-by: Helen Mae Koike Fornazier <helen.koike@collabora.co.uk>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-20 16:14:39 -03:00
Mauro Carvalho Chehab 21cf734c79 [media] siano: firmware buffer is too small
As pointed by KASAN:

	BUG: KASAN: slab-out-of-bounds in memcpy+0x1d/0x40 at addr ffff880000038d8c
	Read of size 128 by task systemd-udevd/2536
	page:ffffea0000000800 count:1 mapcount:0 mapping:          (null) index:0x0 compound_mapcount: 0
	flags: 0xffff8000004000(head)
	page dumped because: kasan: bad access detected
	CPU: 1 PID: 2536 Comm: systemd-udevd Not tainted 4.5.0-rc3+ #47
	Hardware name:                  /NUC5i7RYB, BIOS RYBDWi35.86A.0350.2015.0812.1722 08/12/2015
	  ffff880000038d8c ffff8803b0f1f1e8 ffffffff81933901 0000000000000080
	  ffff8803b0f1f280 ffff8803b0f1f270 ffffffff815602c5 ffffffff8284cf93
	  ffffffff822ddc00 0000000000000282 0000000000000001 ffff88009c7c6000
	Call Trace:
	  [<ffffffff81933901>] dump_stack+0x85/0xc4
	  [<ffffffff815602c5>] kasan_report_error+0x525/0x550
	  [<ffffffff815606e9>] kasan_report+0x39/0x40
	  [<ffffffff8155f84d>] memcpy+0x1d/0x40
	  [<ffffffffa120cb90>] smscore_set_device_mode+0xee0/0x2560 [smsmdtv]

Such error happens at the memcpy code below:

0x4bc0 is in smscore_set_device_mode (drivers/media/common/siano/smscoreapi.c:975).
970					      sizeof(u32) + payload_size));
971
972			data_msg->mem_addr = mem_address;
973			memcpy(data_msg->payload, payload, payload_size);
974
975			rc = smscore_sendrequest_and_wait(coredev, data_msg,
976					data_msg->x_msg_header.msg_length,
977					&coredev->data_download_done);
978
979			payload += payload_size;

The problem is that the Siano driver uses a header to store the firmware,
with requires a few more bytes than allocated.

Tested with:
	PCTV 77e (2013:0257)
	Hauppauge WinTV MiniStick (2040:5510)

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-16 09:29:13 -02:00
Mauro Carvalho Chehab 83a74ff8e6 [media] siano: remove get_frontend stub
There's nothing at siano's get_frontend() callback. So,
remove it, as the core will handle it.

Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-04 16:27:17 -02:00
Arnd Bergmann 733d0def3e [media] b2c2: flexcop: avoid unused function warnings
The flexcop driver has two functions that are normally used, except
when multiple frontend drivers are disabled:

drivers/media/common/b2c2/flexcop-fe-tuner.c:42:12: warning: 'flexcop_set_voltage' defined but not used [-Wunused-function]
drivers/media/common/b2c2/flexcop-fe-tuner.c:71:12: warning: 'flexcop_sleep' defined but not used [-Wunused-function]

This avoids the build warning by updating the #ifdef for flexcop_set_voltage
to the exact condition under which it is used. For flexcop_sleep, the
condition is rather complex, so I resort to marking it as __maybe_unused,
so the compiler can silently drop it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 13:15:01 -02:00
Patrick Boettcher 99e44da792 [media] media: change email address
Soon my dibcom.fr/parrot.com-address won't respond anymore.
Thus I'm replacing it. And, while being at it,
let's adapt some other (old) email-addresses as well.

Signed-off-by: Patrick Boettcher <patrick.boettcher@posteo.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 12:01:08 -02:00
Linus Torvalds 7d1fc01afc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  floppy: make local variable non-static
  exynos: fixes an incorrect header guard
  dt-bindings: fixes some incorrect header guards
  cpufreq-dt: correct dead link in documentation
  cpufreq: ARM big LITTLE: correct dead link in documentation
  treewide: Fix typos in printk
  Documentation: filesystem: Fix typo in fs/eventfd.c
  fs/super.c: use && instead of & for warn_on condition
  Documentation: fix sysfs-ptp
  lib: scatterlist: fix Kconfig description
2016-01-14 17:04:19 -08:00
Mauro Carvalho Chehab 0230d60e46 [media] dvbdev: Add RF connector if needed
Several pure digital TV devices have a frontend with the tuner
integrated on it. Add the RF connector when dvb_create_media_graph()
is called on such devices.

Tested with siano and dvb_usb_mxl111sf drivers.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:19:25 -02:00
Javier Martinez Canillas 9832e155f1 [media] media-device: split media initialization and registration
The media device node is registered and so made visible to user-space
before entities are registered and links created which means that the
media graph obtained by user-space could be only partially enumerated
if that happens too early before all the graph has been created.

To avoid this race condition, split the media init and registration
in separate functions and only register the media device node when
all the pending subdevices have been registered, either explicitly
by the driver or asynchronously using v4l2_async_register_subdev().

The media_device_register() had a check for drivers not filling dev
and model fields but all drivers in mainline set them and not doing
it will be a driver bug so change the function return to void and
add a BUG_ON() for dev being NULL instead.

Also, add a media_device_cleanup() function that will destroy the
graph_mutex that is initialized in media_device_init().

[mchehab@osg.samsung.com: Fix compilation if !CONFIG_MEDIA_CONTROLLER
 and remove two warnings added by this changeset]
Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:19:15 -02:00
Mauro Carvalho Chehab 0d3ab8410d [media] dvb core: must check dvb_create_media_graph()
If media controller is enabled and mdev is filled, it should
ensure that the media graph will be properly initialized.

Enforce that.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:18:59 -02:00
Masanari Iida e3d132d123 treewide: Fix typos in printk
This patch fix multiple spelling typos found in
various part of kernel.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-12-08 14:59:19 +01:00
Mauro Carvalho Chehab 850c8a7d68 smsir.h: remove a now duplicated definition (IR_DEFAULT_TIMEOUT)
This macro is now part of the core. Remove from Siano driver.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:41:36 -02:00
Mauro Carvalho Chehab d647f0b70c [media] include/media: move driver interface headers to a separate dir
Let's not mix headers used by the core with those headers that
are needed by some driver-specific interface header.

The headers used on drivers were manually moved using:
    mkdir include/media/drv-intf/
    git mv include/media/cx2341x.h include/media/cx25840.h \
	include/media/exynos-fimc.h include/media/msp3400.h \
	include/media/s3c_camif.h include/media/saa7146.h \
	include/media/saa7146_vv.h  include/media/sh_mobile_ceu.h \
	include/media/sh_mobile_csi2.h include/media/sh_vou.h \
	include/media/si476x.h include/media/soc_mediabus.h \
	include/media/tea575x.h include/media/drv-intf/

And the references for those headers were corrected using:

    MAIN_DIR="media/"
    PREV_DIR="media/"
    DIRS="drv-intf/"

    echo "Checking affected files" >&2
    for i in $DIRS; do
	for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do
		 n=`basename $j`
		git grep -l $n
	done
    done|sort|uniq >files && (
	echo "Handling files..." >&2;
	echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\";
	(
		cd include/$MAIN_DIR;
		for j in $DIRS; do
			for i in $(ls $j); do
				echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\";
			done;
		done;
		echo "cat > a && mv a \$i; done";
	);
	echo "Handling documentation..." >&2;
	echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\";
	(
		cd include/$MAIN_DIR;
		for j in $DIRS; do
			for i in $(ls $j); do
				echo "  perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\";
			done;
		done;
		echo "cat > a && mv a \$i; done"
	);
    ) >script && . ./script

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2015-11-17 06:57:29 -02:00
Fabian Frederick 2bb00da148 [media] saa7146: use swap() in sort_and_eliminate()
Use kernel.h macro definition.

Thanks to Julia Lawall for Coccinelle scripting support.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-07-06 08:25:49 -03:00
Jemma Denson d3525b632a [media] b2c2: Add option to skip the first 6 pid filters
The flexcop bridge chip has two banks of hardware pid filters -
an initial 6, and on some chip revisions an additional bank of 32.

A bug is present on the initial 6 - when changing transponders
one of two PAT packets from the old transponder would be included
in the initial packets from the new transponder. This usually
transpired with userspace programs complaining about services
missing, because they are seeing a PAT that they would not be
expecting. Running in full TS mode does not exhibit this problem,
neither does using just the additional 32.

This patch adds in an option to not use the inital 6 and solely use
just the additional 32, and enables this option for the SkystarS2
card. Other cards can be added as required if they also have
this bug.

Signed-off-by: Jemma Denson <jdenson@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-09 20:57:56 -03:00
Jemma Denson 4b7574fb3c [media] b2c2: Mismatch in config ifdefs for SkystarS2
Compilation warning issued by kbuild test robot:
>> drivers/media/common/b2c2/flexcop-fe-tuner.c:31:12: warning: 'flexcop_fe_request_firmware' defined but not used [-Wunused-function]
    static int flexcop_fe_request_firmware(struct dvb_frontend *fe,

This patch fixes a mismatch in Kconfig define checks. One had a
check for just CX24120, the other is checking for both CX24120
and ISL6421.

Signed-off-by: Jemma Denson <jdenson@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-09 18:37:56 -03:00
Mauro Carvalho Chehab 0df289a209 [media] dvb: Get rid of typedev usage for enums
The DVB API was originally defined using typedefs. This is against
Kernel CodingStyle, and there's no good usage here. While we can't
remove its usage on userspace, we can avoid its usage in Kernelspace.

So, let's do it.

This patch was generated by this shell script:

	for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done

While here, make CodingStyle fixes on the affected lines.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
2015-06-09 17:47:35 -03:00
Jemma Denson cf4f811479 [media] b2c2: Reset no_base_addr on skystarS2 attach failure
If set, all the other drivers reset no_base_addr on failure to
attach - git commit for this being added to some of them seems to
be eccd15aad7

This driver has been floating around outside the mainline for so
long it hasn't had this fix, so add it in.

Whilst here tidy surrounding code to fix style issues.

Signed-off-by: Jemma Denson <jdenson@gmail.com>
Signed-off-by: Patrick Boettcher <patrick.boettcher@posteo.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-18 17:48:13 -03:00
Patrick Boettcher f7a77ebf08 [media] cx24120: i2c-max-write-size is now configurable
Some i2c-hosts are quite limited regarding maximum
i2c-burst-write-sizes. This patch makes the previously
hardcoded field configurable by users of the driver.

Signed-off-by: Patrick Boettcher <patrick.boettcher@posteo.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-18 16:32:35 -03:00
Jemma Denson 5afc9a25be [media] Add support for TechniSat Skystar S2
This patch adds support for the Technisat Skystar S2 - this
has been tried before but the cx24120 driver was a bit out of shape
and it didn't got any further:

https://patchwork.linuxtv.org/patch/10575/

It is an old card, but currently being sold off for next to nothing,
so it's proving quite popular of late. Noticing it's quite similar
to the cx24116 and cx24117 I've rewritten the driver in a similar way.

There were a few registers and commands from those drivers
missing from this one I've tested out and found they do something so
they've been added in to speed up tuning and to make get_frontend
return something useful.

Signed-off-by: Jemma Denson <jdenson@gmail.com>
Signed-off-by: Patrick.Boettcher <patrick.boettcher@posteo.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-18 16:31:35 -03:00
Fabian Frederick f5d3907882 [media] siano: define SRVM_MAX_PID_FILTERS only once
SRVM_MAX_PID_FILTERS was defined in 2 sms_tx_stats structures

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-13 17:01:44 -03:00
Mauro Carvalho Chehab 5a13e40b28 media: replace bellow -> below
Bellow is yelling. Ok, sometimes the code is yells a lot, but
but this is not the case there ;)

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-08 14:48:48 -03:00
Hans Verkuil 3ae863e0db [media] saa7146: embed video_device
Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-02 23:29:01 -03:00
Fabian Frederick f35593fdc8 [media] saa7146: replace current->state by set_current_state()
Use helper functions to access current->state.
Direct assignments are prone to races and therefore buggy.

current->state = TASK_RUNNING can be replaced by __set_current_state()

Thanks to Peter Zijlstra for the exact definition of the problem.

Suggested-By: Peter Zijlstra <peterz@infradead.org>

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-03-03 11:15:42 -03:00
Mauro Carvalho Chehab 89a2c1d60a [media] use a function for DVB media controller register
This is really a simple function, but using it avoids to have
if's inside the drivers.

Also, the kABI becomes a little more clearer.

This shouldn't generate any overhead, and the type check
will happen when compiling with MC DVB enabled.

So, let's do it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-03-02 11:29:39 -03:00
Mauro Carvalho Chehab 872b9dbedd [media] dvb: Avoid warnings when compiled without the media controller
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c: In function ‘dvb_usbv2_adapter_dvb_exit’:
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:531:25: warning: unused variable ‘d’ [-Wunused-variable]
  struct dvb_usb_device *d = adap_to_d(adap);
                         ^
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:403:13: warning: ‘dvb_usbv2_media_device_register’ defined but not used [-Wunused-function]
 static void dvb_usbv2_media_device_register(struct dvb_usb_adapter *adap)

drivers/media/usb/dvb-usb/dvb-usb-dvb.c:97:13: warning: ‘dvb_usb_media_device_register’ defined but not used [-Wunused-function]
 static void dvb_usb_media_device_register(struct dvb_usb_adapter *adap)
             ^

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-03-02 11:25:45 -03:00
Mauro Carvalho Chehab 480884b647 [media] dvbdev: use adapter arg for dvb_create_media_graph()
Instead of using media_dev argument for dvb_create_media_graph(),
use the adapter.

That allows to create a stub for this function, if compiled
without DVB support, avoiding to add extra if's at the drivers.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-03-02 11:25:38 -03:00
Mauro Carvalho Chehab 4b208f8b56 [media] siano: register media controller earlier
We need to initialize the media controller earlier, as the core
will call the smsdvb hotplug during register time. Ok, this is
an async operation, so, when the module is not loaded, the media
controller works.

However, if the module is already loaded, nothing will be
registered at the media controller, as it will load too late.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26 09:10:39 -03:00
Mauro Carvalho Chehab fb372a434d [media] siano: print a message if DVB register succeeds
Right now, this is a debug message, misplaced. Promote it
to an info message, as it helps to discover if something
bad happened during device init.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26 09:10:05 -03:00
Mauro Carvalho Chehab d9f3836b7b [media] siano: get rid of sms_dbg parameter
All siano modules have a sms_dbg parameter. Now that we're using
the standard pr_debug() macro, we can get rid of it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26 09:10:05 -03:00
Mauro Carvalho Chehab 0dd5f20cb3 [media] siano: get rid of sms_info()
On most cases, sms_info() should actually be pr_debug(), but,
on other places, it should be pr_info().

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26 09:10:04 -03:00
Mauro Carvalho Chehab 6908368879 [media] siano: replace sms_debug() by pr_debug()
There's no reason to use a macro here. Just replace everything,
and let those debug messages to be activated via dynamic printk.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26 09:10:04 -03:00
Mauro Carvalho Chehab 9b283e6796 [media] siano: replace sms_log() by pr_debug()
Despite its name, those functions are acutally debug
prints for the IR part of the driver. So, properly
map them using pr_debug()

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26 09:10:03 -03:00
Mauro Carvalho Chehab 5ed0a2c7ec [media] siano: replace sms_err by pr_err
Originally, sms_err() would be also displaying the line where
the error occurs, but the messages are clear enough. Also,
the function is always printed. So, no need for it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26 09:10:02 -03:00
Mauro Carvalho Chehab 535bd1e96e [media] siano: replace sms_warn() by pr_warn()
There's no reason for a sms' own sms_warn macro. Just replace
it by the standard pr_warn().

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26 09:10:02 -03:00
Mauro Carvalho Chehab 5e022d1aa0 [media] siano: use pr_* print functions
Instead of defining its own set of printk functions, let's
use the common Kernel debug logic provided by pr_foo functions.

As a first step, let's just define the existing macros as the
Kernel ones.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26 09:10:01 -03:00
Mauro Carvalho Chehab 46b1e21fe5 [media] siano: add support for the media controller at USB driver
Adding support for the media controller for a pure DVB device
is simple: just create a struct media_device and add it to the
dvb adapter. After creating all DVB devices, we need to call
the DVB core, for it to create the media graph.

More work is needed for pure DVB tuners, but this is hidden
at the Siano driver, just like several others non-hybrid
devices. So, this is streight forward.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26 08:46:48 -03:00
Hans Verkuil 90ca8bef90 [media] btcx-risc: move to bt8xx
The btcx-risc module is no longer used by other drivers except for bttv.
So move it from common to bt8xx and make it part of the bttv driver instead
of as a separate module.

This module should never have been a common module since most of the code
has always been bttv specific.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-23 10:13:19 -02:00
Hans Verkuil 215cedec37 [media] media: remove emacs editor variables
1) This is not allowed by the kernel coding style
2) Just configure your editor correctly
3) It's really ugly

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-22 17:52:20 -02:00
Markus Elfring 6b281d830f [media] siano: unnecessary check before rc_unregister_device()
The rc_unregister_device() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call
is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-25 13:44:34 -02:00
Hans Verkuil 4daee77976 [media] v4l2-common: move v4l2_ctrl_check to cx2341x
The v4l2_ctrl_check() helper function is now only used in cx2341x.
Move it there and make it static.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-25 08:25:36 -02:00
Matthias Schwarzott c4e7b893a5 [media] tveeprom: Update list of chips and extend serial number to 32bits
The update was supplied directly by PCTV.

Add tuner ids 182-188.
Add audproc ids 45-52.
Add decoder chip ids 43-53.
Use 32bits for the serial number.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-03 16:18:49 -02:00
Johann Klammer 847713ea4f [media] saa7146: turn bothersome error into a debug message
After updating the kernel to 3.14.15 I am seeing these messages:

[273684.964081] saa7146: saa7146 (0): saa7146_wait_for_debi_done_sleep
timed out while waiting for registers getting programmed
[273690.020061] saa7146: saa7146 (0): saa7146_wait_for_debi_done_sleep
timed out while waiting for registers getting programmed
[273695.076082] saa7146: saa7146 (0): saa7146_wait_for_debi_done_sleep
timed out while waiting for registers getting programmed
[273700.132077] saa7146: saa7146 (0): saa7146_wait_for_debi_done_sleep
timed out while waiting for registers getting programmed
[273705.188070] saa7146: saa7146 (0): saa7146_wait_for_debi_done_sleep
timed out while waiting for registers getting programmed
[273710.244066] saa7146: saa7146 (0): saa7146_wait_for_debi_done_sleep
timed out while waiting for registers getting programmed
[273715.300187] saa7146: saa7146 (0): saa7146_wait_for_debi_done_sleep
timed out while waiting for registers getting programmed
[273720.356068] saa7146: saa7146 (0): saa7146_wait_for_debi_done_sleep
timed out while waiting for registers getting programmed
[273725.412188] saa7146: saa7146 (0): saa7146_wait_for_debi_done_sleep
timed out while waiting for registers getting programmed
[273730.468094] saa7146: saa7146 (0): saa7146_wait_for_debi_done_sleep
timed out while waiting for registers getting programmed
[273735.524070] saa7146: saa7146 (0): saa7146_wait_for_debi_done_sleep
timed out while waiting for registers getting programmed
[273740.580176] saa7146: saa7146 (0): saa7146_wait_for_debi_done_sleep
timed out while waiting for registers getting programmed

filling up the logs(one about every 5 seconds).

Other posts suggests that it is not actually an error on cards without a
CI interface. Here's a patch that turns it into a debug message, so it
does not clobber the logs.

Signed-off-by: Johann Klammer <klammerj@a1.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-03 14:45:28 -02:00
Lubomir Rintel a0bd3e0b31 [media] saa7146: Create a device name before it's used
request_irq() uses it, tries to create a procfs file with an empty name
otherwise.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=83771

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-10-21 08:51:44 -02:00
Mauro Carvalho Chehab a66d05d504 Merge branch 'patchwork' into v4l_for_linus
* patchwork: (544 commits)
  [media] ir-hix5hd2: fix build on c6x arch
  [media] pt3: fix DTV FE I2C driver load error paths
  Revert "[media] media: em28xx - remove reset_resume interface"
  [media] exynos4-is: fix some warnings when compiling on arm64
  [media] usb drivers: use %zu instead of %zd
  [media] pci drivers: use %zu instead of %zd
  [media] dvb-frontends: use %zu instead of %zd
  [media] s5p-mfc: Fix several printk warnings
  [media] s5p_mfc_opr: Fix warnings
  [media] ti-vpe: Fix typecast
  [media] s3c-camif: fix dma_addr_t printks
  [media] s5p_mfc_opr_v6: get rid of warnings when compiled with 64 bits
  [media] s5p_mfc_opr_v5: Fix lots of warnings on x86_64
  [media] em28xx: Fix identation
  [media] drxd: remove a dead code
  [media] saa7146: remove return after BUG()
  [media] cx88: remove return after BUG()
  [media] cx88: fix cards table CodingStyle
  [media] radio-sf16fmr2: declare some structs as static
  [media] radio-sf16fmi: declare pnp_attached as static
  ...

Conflicts:
	Documentation/DocBook/media/v4l/compat.xml
2014-10-09 14:00:54 -03:00
Mauro Carvalho Chehab ae64b5ab4a [media] saa7146: remove return after BUG()
As reported by smatch:
	drivers/media/common/saa7146/saa7146_fops.c:314 fops_mmap() info: ignoring unreachable code.
	drivers/media/common/saa7146/saa7146_fops.c:402 fops_read() info: ignoring unreachable code.
	drivers/media/common/saa7146/saa7146_fops.c:426 fops_write() info: ignoring unreachable code.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-09-26 06:47:57 -03:00
Hans Verkuil 50394e7369 [media] cx2341x: fix kernel oops
The v4l2_ctrl_config struct must be zeroed before passing it to
v4l2_ctrl_new_custom(). This was always wrong, but with the recent
v4l2-ctrls.c changes this is now much more likely to lead to a
kernel bug.

This is the only place where this struct wasn't initialized properly.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Pridvorov Andrey <ua0lnj@bk.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-09-21 20:56:11 -03:00
Rasmus Villemoes 69486eb00b [media] drivers: media: b2c2: flexcop.h: Fix typo in include guard
Three trailing underscores is one too many.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-09-21 20:11:54 -03:00
Mauro Carvalho Chehab 2f1e48d670 [media] siano: just return 0 instead of using a var
Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-03 17:59:27 -03:00
Mauro Carvalho Chehab 29bbb7bd0a [media] siano: add support for PCTV 77e
Add support for PCTV microStick (77e) device that uses a sms1140
chipset.

Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-08-21 15:25:27 -05:00
Joe Perches 6850aeabdd media: use pci_zalloc_consistent
Remove the now unnecessary memset too.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08 15:57:28 -07:00
David Härdeman c5540fbb9d [media] rc-core: remove protocol arrays
The basic API of rc-core used to be:

	dev = rc_allocate_device();
	dev->x = a;
	dev->y = b;
	dev->z = c;
	rc_register_device();

which is a pretty common pattern in the kernel, after the introduction of
protocol arrays the API looks something like:

	dev = rc_allocate_device();
	dev->x = a;
	rc_set_allowed_protocols(dev, RC_BIT_X);
	dev->z = c;
	rc_register_device();

There's no real need for the protocols to be an array, so change it
back to be consistent (and in preparation for the following patches).

[m.chehab@samsung.com: added missing changes at some files]
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-25 19:10:43 -03:00
Paul Bolle 3c4b422adb [media] sms: Remove CONFIG_ prefix from Kconfig symbols
X-Patchwork-Delegate: mchehab@redhat.com
Remove the CONFIG_ prefix from two Kconfig symbols in a dependency for
SMS_SIANO_DEBUGFS. This prefix is invalid inside Kconfig files.

Note that the current (common sense) dependency on SMS_USB_DRV and
SMS_SDIO_DRV being equal ensures that SMS_SIANO_DEBUGFS will not
violate its constraints. These constraint are that:
- it should only be built if SMS_USB_DRV is set;
- it can't be builtin if USB support is modular.

So drop the dependency on SMS_USB_DRV, as it is unneeded.

Fixes: 6c84b21428 ("[media] sms: fix randconfig building error")

Reported-by: Martin Walch <walch.martin@web.de>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-22 09:57:28 -03:00
Hans Verkuil c9adcb73b2 [media] saa7146: fix compile warning
Fall-out from the recent struct v4l2_framebuffer change.

drivers/media/common/saa7146/saa7146_fops.c: In function ‘saa7146_vv_init’:
drivers/media/common/saa7146/saa7146_fops.c:536:6: warning: assignment from incompatible pointer type [enabled by default]
  fmt = &vv->ov_fb.fmt;
        ^

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-21 19:32:35 -03:00
Ramakrishnan Muthukrishnan 95cd5d5ee6 [media] media: remove the setting of the flag V4L2_FL_USE_FH_PRIO
Since all the drivers that use `struct v4l2_fh' use the core
priority checking, the setting of the flag in the drivers can
be removed.

Signed-off-by: Ramakrishnan Muthukrishnan <ramakrmu@cisco.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-04 16:14:59 -03:00
James Hogan 1a1934fab0 [media] rc: abstract access to allowed/enabled protocols
The allowed and enabled protocol masks need to be expanded to be per
filter type in order to support wakeup filter protocol selection. To
ease that process abstract access to the rc_dev::allowed_protos and
rc_dev::enabled_protocols members with inline functions.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-11 13:24:39 -03:00
Mauro Carvalho Chehab 37e59f876b [media, edac] Change my email address
There are several left overs with my old email address.
Remove their occurrences and add myself at CREDITS, to
allow people to be able to reach me on my new addresses.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-07 08:03:07 -02:00
Jonathan McCrohan 39c1cb2b19 [media] media_tree: Fix spelling errors
Fix various spelling errors in strings and comments throughout the media
tree. The majority of these were found using Lucas De Marchi's codespell
tool.

[m.chehab@samsung.com: discard hunks with conflicts]

Signed-off-by: Jonathan McCrohan <jmccrohan@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-29 14:43:50 -02:00