This patch adds V4L2 HVA (Hardware Video Accelerator) video encoder
driver for STMicroelectronics SoC. It uses the V4L2 mem2mem framework.
This patch only contains the core parts of the driver:
- the V4L2 interface with the userland (hva-v4l2.c)
- the hardware services (hva-hw.c)
- the memory management utilities (hva-mem.c)
This patch doesn't include the support of specific codec (e.g. H.264)
video encoding: this support is part of subsequent patches.
Signed-off-by: Yannick Fertre <yannick.fertre@st.com>
Signed-off-by: Jean-Christophe Trotin <jean-christophe.trotin@st.com>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
The dma-mapping core and the implementations do not change the DMA
attributes passed by pointer. Thus the pointer can point to const data.
However the attributes do not have to be a bitfield. Instead unsigned
long will do fine:
1. This is just simpler. Both in terms of reading the code and setting
attributes. Instead of initializing local attributes on the stack
and passing pointer to it to dma_set_attr(), just set the bits.
2. It brings safeness and checking for const correctness because the
attributes are passed by value.
Semantic patches for this change (at least most of them):
virtual patch
virtual context
@r@
identifier f, attrs;
@@
f(...,
- struct dma_attrs *attrs
+ unsigned long attrs
, ...)
{
...
}
@@
identifier r.f;
@@
f(...,
- NULL
+ 0
)
and
// Options: --all-includes
virtual patch
virtual context
@r@
identifier f, attrs;
type t;
@@
t f(..., struct dma_attrs *attrs);
@@
identifier r.f;
@@
f(...,
- NULL
+ 0
)
Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Acked-by: Mark Salter <msalter@redhat.com> [c6x]
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> [cris]
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [drm]
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Fabien Dessenne <fabien.dessenne@st.com> [bdisp]
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> [vb2-core]
Acked-by: David Vrabel <david.vrabel@citrix.com> [xen]
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen swiotlb]
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon]
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390]
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [avr32]
Acked-by: Vineet Gupta <vgupta@synopsys.com> [arc]
Acked-by: Robin Murphy <robin.murphy@arm.com> [arm64 and dma-iommu]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We have assigned memory while requesting the firmware but if the sanity
check fails then we are not releasing the firmware.
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Make this a proper typed array. Drop the old allocate context code since
that is no longer used.
Note that the memops functions now get a struct device pointer instead of
the struct device ** that was there initially (actually a void pointer to
a struct containing only a struct device pointer).
This code is now a lot cleaner.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Stop using alloc_ctx and just fill in the device pointer.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Fabien Dessenne <fabien.dessenne@st.com>
Acked-by: Benoit Parrot <bparrot@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Those structs are used only at bdisp-hw, so they shouldn't be
there in a header file that it is used elsewhere.
This fixes the following Gcc 6.1 warnings:
In file included from drivers/media/platform/sti/bdisp/bdisp-debug.c:11:0:
drivers/media/platform/sti/bdisp/bdisp-filter.h:207:65: warning: ‘bdisp_v_spec’ defined but not used [-Wunused-const-variable=]
static const struct __maybe_unused bdisp_filter_v_spec bdisp_v_spec[] = {
^~~~~~~~~
In file included from drivers/media/platform/sti/bdisp/bdisp-debug.c:11:0:
drivers/media/platform/sti/bdisp/bdisp-filter.h:23:65: warning: ‘bdisp_h_spec’ defined but not used [-Wunused-const-variable=]
static const struct __maybe_unused bdisp_filter_h_spec bdisp_h_spec[] = {
^~~~~~~~~
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
c8sectpfe driver relied on CONFIG_FW_LOADER_USER_HELPER_FALLBACK option
for loading its xp70 firmware. A previous commit removed this Kconfig
option, as it is apparently harmful, but did not update the driver
code which relied on it.
This patch reworks the firmware loading into the start_feed callback.
At this point we can be sure the rootfs is present, thereby removing
the depedency on CONFIG_FW_LOADER_USER_HELPER_FALLBACK.
Fixes: 79f5b6ae96 ('[media] c8sectpfe: Remove select on CONFIG_FW_LOADER_USER_HELPER_FALLBACK')
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
During the review process, a regression was intoduced in the
circular buffer write pointer management. This means that wp
doesn't get managed properly once the buffer becomes full.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The stv6110x_devctl structure is never modified, so declare it as
const.
Done with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Move timestamp from struct vb2_v4l2_buffer to struct vb2_buffer
for common use, and change its type to u64 in order to handling
y2038 problem. This patch also includes all device drivers' changes related to
this restructuring.
Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The queue_setup callback has a void pointer that is just for V4L2
and is the pointer to the v4l2_format struct that was passed to
VIDIOC_CREATE_BUFS. The idea was that drivers would use the information
from that struct to buffers suitable for the requested format.
After the vb2 split series this pointer is now a void pointer,
which is ugly, and the reality is that all existing drivers will
effectively just look at the sizeimage field of v4l2_format.
To make this more generic the queue_setup callback is changed:
the void pointer is dropped, instead if the *num_planes argument
is 0, then use the current format size, if it is non-zero, then
it contains the number of requested planes and the sizes array
contains the requested sizes. If either is unsupported, then return
-EINVAL, otherwise use the requested size(s).
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The variable "tsin" was checked three times in a loop iteration of the
c8sectpfe_tuner_unregister_frontend() function.
This implementation detail could be improved by the combination of the
involved statements into a single if block so that this variable will be
checked only once there.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The functions i2c_put_adapter() and module_put() test whether their
argument is NULL and then return immediately.
Thus the tests around their calls are 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>
reset-gpios is more clear than rst-gpio.
This change has been done as one atomic commit but it
does breaks compatability with older dtbs.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Merge tag 'media/v4.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
"Media updates, including:
- Lots of improvements at the kABI documentation
- Split of Videobuf2 into a common part and a V4L2 specific one
- Split of the VB2 tracing events into a separate header file
- s5p-mfc got support for Exynos 5433
- v4l2 fixes for 64-bits alignment when running 32 bits userspace
on ARM
- Added support for SDR radio transmitter at core, vivid and hackrf
drivers
- Some y2038 fixups
- Some improvements at V4L2 colorspace support
- saa7164 converted to use the V4L2 core control framework
- several new boards additions, cleanups and fixups
PS: There are two patches for scripts/kernel-doc that are needed by
the documentation patches on Media. Jon is OK on merging those via
my tree"
* tag 'media/v4.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (146 commits)
[media] c8sectpfe: Remove select on CONFIG_FW_LOADER_USER_HELPER_FALLBACK
[media] DocBook media: update copyright/version numbers
[media] ivtv: Convert to get_user_pages_unlocked()
[media] media/v4l2-ctrls: fix setting autocluster to manual with VIDIOC_S_CTRL
[media] DocBook media: Fix a typo in encoder cmd
[media] DocBook: add SDR specific info to G_MODULATOR / S_MODULATOR
[media] DocBook: add SDR specific info to G_TUNER / S_TUNER
[media] hackrf: do not set human readable name for formats
[media] hackrf: add support for transmitter
[media] hackrf: switch to single function which configures everything
[media] hackrf: add control for RF amplifier
[media] DocBook: add modulator type field
[media] v4l: add type field to v4l2_modulator struct
[media] DocBook: document SDR transmitter
[media] v4l2: add support for SDR transmitter
[media] DocBook: document tuner RF gain control
[media] v4l2: add RF gain control
[media] v4l2: rename V4L2_TUNER_ADC to V4L2_TUNER_SDR
[media] media/vivid-osd: fix info leak in ioctl
[media] media: videobuf2: Move v4l2-specific stuff to videobuf2-v4l2
...
The variable err was never initialized, that means we had been checking
a garbage value in the for loop. Moreover if the segment is not outside
the firmware file then also we have been returning the garbage.
Initialize it to 0 so that on success we return the value and no need to
check in the for loop also as it is initially 0 and whenever that value
changes we have done a break from the loop.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
static analysis with cppcheck detected the following error:
[drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1210]:
(error) Uninitialized variable: ret
ret is never initialised, so garbage is being returned. Instead
return the error return from the call of request_firmware_nowait
Signed-off-by: Colin Ian King <colin.king@canonical.com>
c8sectpfe driver selects CONFIG_FW_LOADER_USER_HELPER_FALLBACK by some
reason, but this option is known to be harmful, leading to minutes of
stalls at boot time. The option was intended for only compatibility
for an old exotic system that mandates the udev interaction, and not a
thing a driver selects by itself. Let's remove it.
Fixes: 850a3f7d59 ('[media] c8sectpfe: Add Kconfig and Makefile for the driver')
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Replace struct v4l2_format * with void * to make queue_setup()
for common use.
And then, modify all device drivers related with this change.
Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: fix missing const in fimc-lite.c]
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Remove v4l2 stuff - v4l2_buf, v4l2_plane - from struct vb2_buffer.
Add new member variables - bytesused, length, offset, userptr, fd,
data_offset - to struct vb2_plane in order to cover all information
of v4l2_plane.
struct vb2_plane {
<snip>
unsigned int bytesused;
unsigned int length;
union {
unsigned int offset;
unsigned long userptr;
int fd;
} m;
unsigned int data_offset;
}
Replace v4l2_buf with new member variables - index, type, memory - which
are common fields for buffer management.
struct vb2_buffer {
<snip>
unsigned int index;
unsigned int type;
unsigned int memory;
unsigned int num_planes;
struct vb2_plane planes[VIDEO_MAX_PLANES];
<snip>
};
v4l2 specific fields - flags, field, timestamp, timecode,
sequence - are moved to vb2_v4l2_buffer in videobuf2-v4l2.c
struct vb2_v4l2_buffer {
struct vb2_buffer vb2_buf;
__u32 flags;
__u32 field;
struct timeval timestamp;
struct v4l2_timecode timecode;
__u32 sequence;
};
Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
LIBELF_32 is not defined in Kconfig, and is left over legacy
which is not required in the upstream driver, so remove it.
Suggested-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Use %pad to print 'dma_addr_t' in order to fix the following
build warning:
drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:588:2: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'dma_addr_t' [-Wformat=]
Reported-by: Olof's autobuilder <build@lixom.net>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
compiling on some archs fail with:
drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:540:8: error: implicit declaration of function ‘pinctrl_select_state’ [-Werror=implicit-function-declaration]
ret = pinctrl_select_state(fei->pinctrl, tsin->pstate);
That's due the need of including pinctrl.h header and because
CONFIG_PINCTRL needs to be true.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
As reported by smatch:
drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:365 find_channel() error: buffer overflow 'fei->channel_data' 8 <= 63
It seems that a cut-and-paste type of error occurred here:
the channel_data array size is C8SECTPFE_MAX_TSIN_CHAN, and not
C8SECTPFE_MAXCHANNEL.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
While it won't work, it is good to allow it to build with
COMPILE_TEST, as we can check if other patches would break
compilation for this driver.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This patch adds the Kconfig and Makefile for the c8sectpfe driver
so it will be built. It also selects additional demodulator and tuners
which are required by the supported NIM cards.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Some basic debugfs support to dump the IP registers. Further
statistics could easily be added in the future for example for
each enabled tsin channel we could expose number of corrupt packets
received etc.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This patch adds support for the following 2 NIM cards: -
1) B2100A (2x stv0367 demods & 2x NXP tda18212 tuners)
2) STV0903-6110NIM (stv0903 demod + 6110 tuner, lnb24)
A NIM card is a cold plugable expansion card which usually
features a demodulator / tuner combination.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
These functions are used by the core code for creating the LDVB
devices and adapter.
Addtionally some older SoC's (and potentially newer ones) have different
frontend HW which would allow those devices to be easily supported
in the future by keeping the code specific to the IP separate from the
more generic code.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This patch adds support for the c8sectpfe input HW found on
STiH407/410 SoC's.
It currently supports the TS input block, memdma engine
and hw PID filtering blocks of the C8SECTPFE subsystem.
The driver creates one LinuxDVB adapter, and a
demux/dvr/frontend set of devices for each tsin channel
which is specificed in the DT. It has been tested with
multiple tsin channels tuned, locked, and grabbing TS
simultaneously.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
bdisp_dev->dbg.copy_node shall be a copy of (and not point to)
bdisp_ctx->node, since this resource is freed upon driver release.
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Support the composing (at VIDEO_CAPTURE) with the _selection API.
v4l2-compliance successfully run ("test Composing: OK")
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This driver requires support for DMA attrs function, and not
just DMA. Change the options accordingly to remove those errors:
/devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c: In function ‘bdisp_hw_free_nodes’:
/devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c:132:3: error: implicit declaration of function ‘dma_free_attrs’ [-Werror=implicit-function-declaration]
dma_free_attrs(ctx->bdisp_dev->dev,
^
/devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c: In function ‘bdisp_hw_alloc_nodes’:
/devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c:157:9: error: implicit declaration of function ‘dma_alloc_attrs’ [-Werror=implicit-function-declaration]
base = dma_alloc_attrs(dev, node_size * MAX_NB_NODE, &paddr,
^
/devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c:157:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
base = dma_alloc_attrs(dev, node_size * MAX_NB_NODE, &paddr,
^
/devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c: In function ‘bdisp_hw_alloc_filters’:
/devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c:219:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
base = dma_alloc_attrs(dev, size, &paddr, GFP_KERNEL | GFP_DMA, &attrs);
Also, get rid of bogus, unused and duplicated symbol declaration
for the config option done at bdisp/Kconfig.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
There are several warnings there, on some architectures, related
to dividing a s32 by a s64 value:
drivers/media/platform/sti/bdisp/bdisp-debug.c:594: warning: comparison of distinct pointer types lacks a cast
drivers/media/platform/sti/bdisp/bdisp-debug.c:594: warning: right shift count >= width of type
drivers/media/platform/sti/bdisp/bdisp-debug.c:594: warning: passing argument 1 of '__div64_32' from incompatible pointer type
drivers/media/platform/sti/bdisp/bdisp-debug.c:595: warning: comparison of distinct pointer types lacks a cast
drivers/media/platform/sti/bdisp/bdisp-debug.c:595: warning: right shift count >= width of type
drivers/media/platform/sti/bdisp/bdisp-debug.c:595: warning: passing argument 1 of '__div64_32' from incompatible pointer type CC [M] drivers/media/tuners/mt2060.o
drivers/media/platform/sti/bdisp/bdisp-debug.c:596: warning: comparison of distinct pointer types lacks a cast
drivers/media/platform/sti/bdisp/bdisp-debug.c:596: warning: right shift count >= width of type
drivers/media/platform/sti/bdisp/bdisp-debug.c:596: warning: passing argument 1 of '__div64_32' from incompatible pointer type
drivers/media/platform/sti/bdisp/bdisp-debug.c:597: warning: comparison of distinct pointer types lacks a cast
drivers/media/platform/sti/bdisp/bdisp-debug.c:597: warning: right shift count >= width of type
drivers/media/platform/sti/bdisp/bdisp-debug.c:597: warning: passing argument 1 of '__div64_32' from incompatible pointer type
That doesn't make much sense. What the driver is actually trying
to do is to divide one second by a value. So, check the range
before dividing. That warrants the right result and will remove
the warnings on non-64 bits archs.
Also fixes this warning:
drivers/media/platform/sti/bdisp/bdisp-debug.c:588: warning: comparison of distinct pointer types lacks a cast
by using div64_s64() instead of calling do_div() directly.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Fix the following warning:
drivers/media/platform/sti/bdisp/bdisp-v4l2.c: In function 'bdisp_register_device':
drivers/media/platform/sti/bdisp/bdisp-v4l2.c:1024:26: warning: variable 'pdev' set but not used [-Wunused-but-set-variable]
struct platform_device *pdev;
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
As reported by smatch:
drivers/media/platform/sti/bdisp/bdisp-v4l2.c:947 bdisp_s_selection() warn: unsigned 'out.width' is never less than zero.
drivers/media/platform/sti/bdisp/bdisp-v4l2.c:947 bdisp_s_selection() warn: unsigned 'out.height' is never less than zero.
Indeed, width and height are unsigned.
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Creates 5 debugfs entries to dump the last HW request, the last HW node
(=command), the HW registers and the recent HW performance (time & fps)
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This v4l2 mem2mem driver is a 2D blitter for STMicroelectronics SoC.
It uses the v4l2 mem2mem framework.
The following features are supported and tested:
- Color format conversion (RGB32, RGB24, RGB16, NV12, YUV420P)
- Copy
- Scale
- Flip
- Deinterlace
- Wide (4K) picture support
- Crop
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: added missing slab.h include to bdisp-v4l2.c]
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
