Commit Graph

36 Commits

Author SHA1 Message Date
Mauro Carvalho Chehab
068adc457f bdisp: move the V/H filter spec to bdisp-hw.c
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>
2016-06-24 12:27:51 -03:00
Peter Griffin
c23ac90f78 [media] c8sectpfe: Rework firmware loading mechanism
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>
2016-05-09 12:57:54 -03:00
Peter Griffin
ee105cac24 [media] c8sectpfe: Demote print to dev_dbg
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-05-09 12:55:12 -03:00
Peter Griffin
a6311d2751 [media] c8sectpfe: Fix broken circular buffer wp management
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>
2016-05-09 12:51:15 -03:00
Julia Lawall
242c503350 [media] constify stv6110x_devctl structure
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>
2016-02-01 07:31:17 -02:00
Junghak Sung
d6dd645eae [media] media: videobuf2: Move timestamp to vb2_buffer
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>
2015-12-18 13:53:31 -02:00
Hans Verkuil
df9ecb0cad [media] vb2: drop v4l2_format argument from queue_setup
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>
2015-12-18 13:48:19 -02:00
Markus Elfring
1ea7252d97 [media] c8sectpfe: Combine three checks into a single if block
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>
2015-11-19 10:10:22 -02:00
Markus Elfring
06b6fea859 [media] c8sectpfe: Delete unnecessary checks before two function calls
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>
2015-11-19 10:09:56 -02:00
Peter Griffin
0014eb755e [media] c8sectpfe: Update binding to reset-gpios
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>
2015-11-18 13:32:58 -02:00
Linus Torvalds
b037865754 media updates for v4.4-rc1
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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
  ...
2015-11-05 12:05:15 -08:00
Sudip Mukherjee
51a3ac5f4d [media] c8sectpfe: fix return of garbage
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>
2015-10-22 15:48:24 -02:00
Colin Ian King
bf447221a8 [media] c8sectpfe: fix ininitialized error return on firmware load failure
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>
2015-10-22 15:48:23 -02:00
Takashi Iwai
79f5b6ae96 [media] c8sectpfe: Remove select on CONFIG_FW_LOADER_USER_HELPER_FALLBACK
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>
2015-10-20 16:02:41 -02:00
Junghak Sung
33119e80c3 [media] media: videobuf2: Change queue_setup argument
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>
2015-10-20 14:48:39 -02:00
Mauro Carvalho Chehab
5347f97c65 [media] c8sectpfe: fix namespace on memcpy/memset
Solves those sparse warnings:

drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1087:9: warning: incorrect type in argument 1 (different address spaces)
drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1087:9:    expected void *<noident>
drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1087:9:    got void [noderef] <asn:2>*<noident>
drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1090:9: warning: incorrect type in argument 1 (different address spaces)
drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1090:9:    expected void *<noident>
drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1090:9:    got void [noderef] <asn:2>*

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01 19:07:32 -03:00
Junghak Sung
2d7007153f [media] media: videobuf2: Restructure vb2_buffer
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>
2015-10-01 09:04:43 -03:00
Peter Griffin
50ef28a6ac [media] c8sectpfe: Remove select on undefined LIBELF_32
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>
2015-09-03 14:10:06 -03:00
Fabio Estevam
62e5f051c1 [media] c8sectpfe: Use %pad to print 'dma_addr_t'
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>
2015-09-03 13:44:29 -03:00
Mauro Carvalho Chehab
53cc7c9043 [media] c8sectpfe: fix pinctrl dependencies
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>
2015-08-11 19:19:08 -03:00
Mauro Carvalho Chehab
7612cf97ec [media] c8sectpfe: don't go past channel_data array
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>
2015-08-11 16:16:55 -03:00
Mauro Carvalho Chehab
409e9eff72 [media] c8sectpfe: Allow compiling it with COMPILE_TEST
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>
2015-08-11 16:16:50 -03:00
Peter Griffin
850a3f7d59 [media] c8sectpfe: Add Kconfig and Makefile for the driver
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>
2015-08-11 16:08:29 -03:00
Peter Griffin
03ad477615 [media] c8sectpfe: Add c8sectpfe debugfs support
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>
2015-08-11 16:07:22 -03:00
Peter Griffin
e77a0cbe6c [media] c8sectpfe: Add support for various ST NIM cards
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>
2015-08-11 16:06:49 -03:00
Peter Griffin
b5e208a684 [media] c8sectpfe: Add LDVB helper functions
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>
2015-08-11 16:05:53 -03:00
Peter Griffin
c5f5d0f997 [media] c8sectpfe: STiH407/10 Linux DVB demux support
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>
2015-08-11 16:04:59 -03:00
Fabien Dessenne
bde2b96d6d [media] bdisp: fix debug info memory access
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>
2015-07-17 09:53:37 -03:00
Fabien Dessenne
24310279eb [media] bdisp: add debug info for RGB24 format
Add this missing debug information

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>
2015-07-17 09:53:20 -03:00
Fabien Dessenne
3d8bffe883 [media] bdisp: composing support
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>
2015-07-17 09:52:59 -03:00
Mauro Carvalho Chehab
1c8a866d31 [media] bdisp: prevent compiling on random arch
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>
2015-06-22 12:56:19 -03:00
Mauro Carvalho Chehab
82d229cde0 [media] bdisp-debug: don't try to divide by s64
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>
2015-06-11 07:34:30 -03:00
Mauro Carvalho Chehab
baa1fb504c [media] bdisp: remove unused var
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>
2015-06-10 12:30:52 -03:00
Fabien Dessenne
1a8b18afa1 [media] bdisp: remove needless check
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>
2015-06-10 12:29:55 -03:00
Fabien Dessenne
34b6beb65b [media] bdisp: add debug file system
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>
2015-06-09 18:12:28 -03:00
Fabien Dessenne
28ffeebbb7 [media] bdisp: 2D blitter driver using v4l2 mem2mem framework
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>
2015-06-09 18:10:41 -03:00