Commit Graph

691619 Commits

Author SHA1 Message Date
Philipp Zabel 52fde8491d media: coda: set field of destination buffers
Set the field of destination buffers properly.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:19:57 -04:00
Philipp Zabel 0c62c67923 media: coda: extend GOP size range
CodaDx6 only accepts GOP sizes up to 60 frames, but CODA960 can handle
up to 99 frames. If we disable automatic I frame generation altogether
by setting GOP size to 0, we can let an application produce arbitrarily
large I frame intervals using the V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME
control.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:19:40 -04:00
Philipp Zabel 9c2a455943 media: coda: do not reassign ctx->tiled_map_type in coda_s_fmt
This smatch warning:

    coda/coda-common.c:706 coda_s_fmt() warn: missing break? reassigning 'ctx->tiled_map_type'

can be silenced by moving the ctx->tiled_map_type assignment into the
breakout condition. That way the field is not reassigned when falling
through to the next switch statement.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:19:10 -04:00
Philipp Zabel 462e8ce009 media: coda: add h264 and mpeg4 profile and level controls
CODA7541 supports H.264 BP level 3/3.1 and MPEG-4 SP level 5/6.
CODA960 supports H.264 BP level 4.0 and MPEG-4 SP level 5/6.

Implement the necessary profile and level controls to let userspace know
this.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:18:04 -04:00
Kevin Hilman 5a634ae0b1 media: davinci: vpif_capture: fix potential NULL deref
Fix potential NULL pointer dereference in the error path of memory
allocation failure.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.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@s-opensource.com>
2017-07-19 15:13:04 -04:00
Colin Ian King e5c50e130d media: fc001[23]: make const gain table arrays static
Don't populate the gain tables on the stack but make them static const.
Makes the object code smaller:

Before:
   text	   data	    bss	    dec	    hex	filename
   7801	   1408	      0	   9209	   23f9	drivers/media/tuners/fc0012.o
   8483	    936	      0	   9419	   24cb	drivers/media/tuners/fc0013.o

After:
   text	   data	    bss	    dec	    hex	filename
   7696	   1464	      0	   9160	   23c8	drivers/media/tuners/fc0012.o
   8362	   1024	      0	   9386	   24aa	drivers/media/tuners/fc0013.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:12:39 -04:00
Colin Ian King d7552a1eea media: solo6x10: make const array saa7128_regs_ntsc static
Don't populate const array saa7128_regs_ntsc on the stack but insteaed make
it static.  Makes the object code smaller and saves nearly 840 bytes

Before:
   text	   data	    bss	    dec	    hex	filename
   9218	    360	      0	   9578	   256a	solo6x10-tw28.o

After:
   text	   data	    bss	    dec	    hex	filename
   8237	    504	      0	   8741	   2225	solo6x10-tw28.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Andrey Utkin <andrey_utkin@fastmail.com>
Signed-off-by: Ismael Luceno <ismael@iodev.co.uk>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:12:15 -04:00
Arnd Bergmann 57d8ba0f0f media: platform: video-mux: fix Kconfig dependency
When CONFIG_V4L2 is built as a loadable module, the new video mux driver
fails to link as built-in code:

drivers/media/platform/video-mux.o: In function `video_mux_remove':
video-mux.c:(.text+0x24): undefined reference to `v4l2_async_unregister_subdev'
drivers/media/platform/video-mux.o: In function `video_mux_probe':
video-mux.c:(.text+0x800): undefined reference to `v4l2_subdev_init'
video-mux.c:(.text+0xa10): undefined reference to `v4l2_async_register_subdev'

This makes it use the same Kconfig dependency as all the other users of
the VIDEO_V4L2_SUBDEV_API symbol.

Fixes: 68803ad452 ("[media] platform: add video-multiplexer subdevice driver")

Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:11:42 -04:00
Gustavo A. R. Silva fda7e34723 media: mediatek: constify vb2_ops structure
Check for vb2_ops structures that are only stored in the ops field of a
vb2_queue structure. That field is declared const, so vb2_ops structures
that have this property can be declared as const also.

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

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct vb2_ops i@p = { ... };

@ok@
identifier r.i;
struct vb2_queue e;
position p;
@@
e.ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct vb2_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct vb2_ops i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:10:52 -04:00
Gustavo A. R. Silva 94e8f761d3 media: mtk-mdp: constify vb2_ops structure
Check for vb2_ops structures that are only stored in the ops field of a
vb2_queue structure. That field is declared const, so vb2_ops structures
that have this property can be declared as const also.

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

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct vb2_ops i@p = { ... };

@ok@
identifier r.i;
struct vb2_queue e;
position p;
@@
e.ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct vb2_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct vb2_ops i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:10:39 -04:00
Gustavo A. R. Silva f5d7232977 media: davinci: vpif_capture: constify vb2_ops structure
Check for vb2_ops structures that are only stored in the ops field of a
vb2_queue structure. That field is declared const, so vb2_ops structures
that have this property can be declared as const also.

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

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct vb2_ops i@p = { ... };

@ok@
identifier r.i;
struct vb2_queue e;
position p;
@@
e.ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct vb2_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct vb2_ops i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:10:26 -04:00
Gustavo A. R. Silva b0a4ceddfc media: davinci: vpif_display: constify vb2_ops structure
Check for vb2_ops structures that are only stored in the ops field of a
vb2_queue structure. That field is declared const, so vb2_ops structures
that have this property can be declared as const also.

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

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct vb2_ops i@p = { ... };

@ok@
identifier r.i;
struct vb2_queue e;
position p;
@@
e.ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct vb2_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct vb2_ops i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:09:39 -04:00
Gustavo A. R. Silva 62c11a541a media: atmel-isc: constify vb2_ops structure
Check for vb2_ops structures that are only stored in the ops field of a
vb2_queue structure. That field is declared const, so vb2_ops structures
that have this property can be declared as const also.

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

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct vb2_ops i@p = { ... };

@ok@
identifier r.i;
struct vb2_queue e;
position p;
@@
e.ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct vb2_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct vb2_ops i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:08:07 -04:00
Gustavo A. R. Silva 0169daec96 media: rcar_fdp1: constify vb2_ops structure
Check for vb2_ops structures that are only stored in the ops field of a
vb2_queue structure. That field is declared const, so vb2_ops structures
that have this property can be declared as const also.

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

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct vb2_ops i@p = { ... };

@ok@
identifier r.i;
struct vb2_queue e;
position p;
@@
e.ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct vb2_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct vb2_ops i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:03:55 -04:00
Gustavo A. R. Silva 7e645125a8 media: pxa_camera: constify vb2_ops structure
Check for vb2_ops structures that are only stored in the ops field of a
vb2_queue structure. That field is declared const, so vb2_ops structures
that have this property can be declared as const also.

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

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct vb2_ops i@p = { ... };

@ok@
identifier r.i;
struct vb2_queue e;
position p;
@@
e.ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct vb2_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct vb2_ops i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:03:39 -04:00
Gustavo A. R. Silva 9c91e70605 media: st-delta: constify vb2_ops structures
Check for vb2_ops structures that are only stored in the ops field of a
vb2_queue structure. That field is declared const, so vb2_ops structures
that have this property can be declared as const also.

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

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct vb2_ops i@p = { ... };

@ok@
identifier r.i;
struct vb2_queue e;
position p;
@@
e.ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct vb2_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct vb2_ops i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:03:22 -04:00
Gustavo A. R. Silva f3ab729c14 media: stm32-dcmi: constify vb2_ops structure
Check for vb2_ops structures that are only stored in the ops field of a
vb2_queue structure. That field is declared const, so vb2_ops structures
that have this property can be declared as const also.

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

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct vb2_ops i@p = { ... };

@ok@
identifier r.i;
struct vb2_queue e;
position p;
@@
e.ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct vb2_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct vb2_ops i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:02:50 -04:00
Gustavo A. R. Silva 6ad33dec83 media: tuners: remove unnecessary static in simple_dvb_configure()
Remove unnecessary static on local variable t_params.
Such variable is initialized before being used,
on every execution path throughout the function.
The static has no benefit and, removing it reduces
the code size.

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

@bad exists@
position p;
identifier x;
type T;
@@

static T x@p;
...
x = <+...x...+>

@@
identifier x;
expression e;
type T;
position p != bad.p;
@@

-static
 T x@p;
 ... when != x
     when strict
?x = e;

In the following log you can see the difference in the code size. Also,
there is a significant difference in the bss segment. This log is the
output of the size command, before and after the code change:

before:
   text    data     bss     dec     hex filename
  23314    3640     832   27786    6c8a drivers/media/tuners/tuner-simple.o

after:
   text    data     bss     dec     hex filename
  23257    3552     768   27577    6bb9 drivers/media/tuners/tuner-simple.o

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:02:27 -04:00
Colin Ian King 72c6efb0d3 media: media/i2c/saa717x: fix spelling mistake: "implementd" -> "implemented"
Trivial fix to spelling mistake in v4l2_dbg debug message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:00:57 -04:00
Colin Ian King 2f9b8aa36b media: i2c: m5mols: fix spelling mistake: "Machanics" -> "Mechanics"
Trivial fix to spelling mistake in v4l2_info message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 15:00:31 -04:00
Arvind Yadav efaf515f0d media: vb2 dma-sg: Constify dma_buf_ops structures
dma_buf_ops are not supposed to change at runtime. All functions
working with dma_buf_ops provided by <linux/dma-buf.h> work with
const dma_buf_ops. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   5238	    112	      4	   5354	   14ea drivers/media/v4l2-core/videobuf2-dma-sg.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   5358	      0	      4	   5362	   14f2 drivers/media/v4l2-core/videobuf2-dma-sg.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-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>
2017-07-19 14:59:24 -04:00
Arvind Yadav 59310b7a06 media: vb2 vmalloc: Constify dma_buf_ops structures
dma_buf_ops are not supposed to change at runtime. All functions
working with dma_buf_ops provided by <linux/dma-buf.h> work with
const dma_buf_ops. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   3171	    192	      0	   3363	    d23 drivers/media/v4l2-core/videobuf2-vmalloc.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   3291	     80	      0	   3371	    d2b drivers/media/v4l2-core/videobuf2-vmalloc.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-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>
2017-07-19 14:59:01 -04:00
Arvind Yadav 6e03db3863 media: vb2 dma-contig: Constify dma_buf_ops structures
dma_buf_ops are not supposed to change at runtime. All functions
working with dma_buf_ops provided by <linux/dma-buf.h> work with
const dma_buf_ops. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   6035	    272	      0	   6307	   18a3 drivers/media/v4l2-core/videobuf2-dma-contig.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   6155	    160	      0	   6315	   18ab drivers/media/v4l2-core/videobuf2-dma-contig.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-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>
2017-07-19 14:58:38 -04:00
Bhumika Goyal 568bdaddc3 media: cx23885: add const to v4l2_file_operations structure
Declare v4l2_file_operations structure as const as it is only stored
in the fops field of video_device structure. This field is of type
const, so declare v4l2_file_operations structures with similar properties
as const.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 14:56:41 -04:00
Bhumika Goyal 6bcc051691 media: media/platform: add const to v4l2_file_operations structures
Declare v4l2_file_operations structures as const as they are only stored
in the fops field of video_device structures. This field is of type
const, so declare v4l2_file_operations structures with similar properties
as const.

Cross compiled bfin_capture.o for blackfin arch. vpbe_display.o file did
not cross compile for arm. Could not find any architecture matching the
configuraion symbol for fsl-viu.c file.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 14:56:19 -04:00
Mauro Carvalho Chehab 177894bfac media: cec-core: fix a Sphinx warning
/devel/v4l/patchwork/Documentation/media/kapi/cec-core.rst:369: WARNING: Title underline too short.

CEC Notifier framework
-----------------

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19 14:29:06 -04:00
Hans Verkuil 0e6fd95802 media: pulse8-cec/rainshadow-cec: make adapter name unique
The CEC adapter name used by the pulse8-cec and rainshadow-cec USB device drivers
was a fixed string, but it should be unique if you connect multiple of these devices
to the same computer.

Use dev_name(&serio->dev) instead, which make it unique again.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 13:00:52 -03:00
Hans Verkuil ed10b4e087 media: cec: drop senseless message
Especially the '0.10' version number is confusing since CEC_ADAP_G_CAPS
returns a completely different version number.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 13:00:26 -03:00
Hans Verkuil 5150418593 media: cec: move cec_register_cec_notifier to cec-notifier.h
The cec_register_cec_notifier function was in media/cec.h, but it
has to be in cec-notifier.h.

While we are at it, also document it and add a stub function for when
the notifier is disabled or the CEC core code is unreachable.

Based on an earlier patch from Jose Abreu <Jose.Abreu@synopsys.com>.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 13:00:01 -03:00
Hans Verkuil 1d174e7573 media: pulse8-cec.rst: add documentation for the pulse8-cec driver
Document the persistent_config module option.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:59:32 -03:00
Hans Verkuil 688318c35a media: cec: be smarter about detecting the number of attempts made
Some hardware does more than one attempt. So when it calls
cec_transmit_done when an error occurred it will e.g. use an error count
of 2 instead of 1.

The framework always assumed a single attempt, but now it is smarter
and will sum the counters to detect how many attempts were made.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:58:56 -03:00
Hans Verkuil ab2ec7a53c media: cec-core.rst: include cec-pin.h and cec-notifier.h
Include the CEC pin framework documentation by reading cec-pin.h.
Include the CEC notifier framework documentation by reading cec-notifier.h.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:58:24 -03:00
Hans Verkuil ea5c8ef296 media: cec-pin: add low-level pin hardware support
Add support for CEC hardware that relies on low-level pin polling or
GPIO interrupts.

One example is the Allwinner SoC. But any GPIO-based CEC implementation can
use this as well.

A GPIO implementation is very suitable as well for debugging: it can use
interrupts to detect state changes and report it. Userspace can then verify
if the bus traffic is correct. This also makes error injection possible.

The disadvantage is that it is hard to get the timings right since linux
isn't a hard realtime system.

In general on an idle system it works quite well, but under load the timer
will miss its mark every so often.

The debugfs file /sys/kernel/debug/cec/cecX/status gives some statistics
with respect to the timer overruns.

When the adapter is unconfigured and the low-level driver supports
interrupts, then the interrupt will be used to detect changes. This should
be quite accurate. But when the adapter is configured a hrtimer has to be
used.

The hrtimer implements a state machine where for each state the code will
read the bus or drive the bus and go on to the next state. It will re-arm
the timer with a delay based on the next state.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:57:18 -03:00
Hans Verkuil b8d62f50b1 media: cec: add core support for low-level CEC pin monitoring
Add support for the new MONITOR_PIN mode.

Add the cec_pin_event function that the CEC pin code will call to queue pin
change events.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:55:38 -03:00
Hans Verkuil fdb8c88e92 media: cec: document the new CEC pin capability, events and mode
Document CEC_CAP_MONITOR_PIN, CEC_EVENT_PIN_LOW/HIGH,
CEC_EVENT_FL_DROPPED_EVENTS and CEC_MODE_MONITOR_PIN.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:54:33 -03:00
Hans Verkuil 6b2bbb0874 media: cec: rework the cec event handling
Event handling was always fairly simplistic since there were only
two events. With the addition of pin events this needed to be redesigned.

The state_change and lost_msgs events are now core events with the
guarantee that the last state is always available. The new pin events
are a queue of events (up to 64 for each event) and the oldest event
will be dropped if the application cannot keep up. Lost events are
marked with a new event flag.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:49:36 -03:00
Hans Verkuil 6303d97873 media: linux/cec.h: add pin monitoring API support
Add support for low-level CEC pin monitoring. This adds a new monitor
mode, a new capability and two new events.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:48:37 -03:00
Hans Verkuil f987cde233 media: cec-core.rst: document the adap_free callback
Document what this callback does.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:47:54 -03:00
Hans Verkuil e6259b5f7a media: cec: add adap_free op
This is needed for CEC adapters that allocate resources that have
to be freed before the cec_adapter is deleted.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:47:29 -03:00
Hans Verkuil 0861ad14c6 media: cec: add *_ts variants for transmit_done/received_msg
Currently the transmit_(attempt_)done and received_msg functions set
the timestamp themselves. For the upcoming low-level pin API we need
to pass this as an argument instead. So make _ts variants that allow
the caller to specify the timestamp.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:47:02 -03:00
Hans Verkuil bb789e03f2 media: cec: improve transmit timeout logging
Kernel logging messes up the upcoming low-level CEC monitoring support
which is very time-sensitive. So change the debug level of this message
but keep a counter that is shown in the debugfs status log.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:45:50 -03:00
Hans Verkuil 15e809e961 media: cec: only increase the seqnr if CEC_TRANSMIT would return 0
The transmit code would increase the sequence number first thing, even though
CEC_TRANSMIT would return an error due to a malformatted cec_msg struct later
on.

While valid behavior, this had the disadvantage of producing holes in the
sequence list that made debugging harder.

Only increase the sequence number when the whole message is validated.
When debugging (i.e. with cec-ctl -M) the sequence numbering is now nicely
increasing by 1 per message.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:37:21 -03:00
Hans Verkuil 299708e45e media: cec: clear all cec_log_addrs fields
The CEC version, vendor ID and OSD name were not cleared when clearing the
current set of logical addresses. This was unexpected and somewhat confusing,
so reset all these fields to their default values. Also document this since
the documentation wasn't quite clear either.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:36:19 -03:00
Janusz Krzysztofik 23a52386fa media: ov6650: convert to standalone v4l2 subdevice
Remove the soc_camera dependencies and move the diver to i2c

Lost features, fortunately not used or not critical on test platform:
- soc_camera power on/off callback - replaced with clock enable/disable
  only, no support for platform provided regulators nor power callback,
- soc_camera sense request - replaced with arbitrarily selected default
  master clock rate and pixel clock limit, no support for platform
  requested values,
- soc_camera board flags - no support for platform requested mbus config
  tweaks.

Tested on Amstrad Delta with now out of tree but still locally
maintained omap1_camera host driver.

Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 12:14:31 -03:00
Mauro Carvalho Chehab 474dfccf36 media: svg: avoid too long lines
Sending patches with SVG files via e-mail has a drawback: line
size could be bigger than 998, with is the limit given by
RFC 5322[1]. So, we need to enforce a lower limit, in order to
allow those patches to be properly reviewed.

[1] https://tools.ietf.org/html/rfc5322#section-2.1.1

So, use this small Perl script to limit columns size to ~900.

use Text::Wrap;
$Text::Wrap::columns = 900;

$t.=$_ while (<>);

print wrap("","",$t);

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 11:53:44 -03:00
Mauro Carvalho Chehab e955bb343a media: svg files: simplify files
Debian's ImageMagick is currently unable to decode those
images. Use scour to simplify the SVG, and provide only
one font type, in order to make it more palatable.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 11:53:43 -03:00
Mauro Carvalho Chehab 440e40635f media: selection.svg: simplify the SVG file
This file is too big, with cause it to require a lot
of memory when parsed by texlive.

Optimize it, in order to avoid the need of touching at
main_memory at texmf.cnf.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-18 11:53:43 -03:00
Javier Martinez Canillas bb3abbb74e media: vimc: set id_table for platform drivers
The vimc platform drivers define a platform device ID table but these
are not set to the .id_table field in the platform driver structure.

So the platform device ID table is only used to fill the aliases in
the module but are not used for matching (works because the platform
subsystem fallbacks to the driver's name if no .id_table is set).

But this also means that the platform device ID table isn't used if
the driver is built-in, which leads to the following build warning:

This causes the following build warnings when the driver is built-in:

drivers/media/platform/vimc//vimc-capture.c:528:40: warning: ‘vimc_cap_driver_ids’ defined but not used [-Wunused-const-variable=]
 static const struct platform_device_id vimc_cap_driver_ids[] = {
                                        ^~~~~~~~~~~~~~~~~~~
drivers/media/platform/vimc//vimc-debayer.c:588:40: warning: ‘vimc_deb_driver_ids’ defined but not used [-Wunused-const-variable=]
 static const struct platform_device_id vimc_deb_driver_ids[] = {
                                        ^~~~~~~~~~~~~~~~~~~
drivers/media/platform/vimc//vimc-scaler.c:442:40: warning: ‘vimc_sca_driver_ids’ defined but not used [-Wunused-const-variable=]
 static const struct platform_device_id vimc_sca_driver_ids[] = {
                                        ^~~~~~~~~~~~~~~~~~~
drivers/media/platform/vimc//vimc-sensor.c:376:40: warning: ‘vimc_sen_driver_ids’ defined but not used [-Wunused-const-variable=]
 static const struct platform_device_id vimc_sen_driver_ids[] = {
                                        ^~~~~~~~~~~~~~~~~~~

Reported-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Suggested-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Helen Koike <helen.koike@collabora.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2017-07-17 11:26:56 -03:00
Mauro Carvalho Chehab a1a0a56ffc media: staging: atomisp: disable warnings with cc-disable-warning
Instead of directly using -Wno-foo, use cc-disable-warning, as it
checks if the compiler has the warnings we want to disable.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-17 11:19:41 -03:00
Mauro Carvalho Chehab 9a01968c75 media: davinci: variable 'common' set but not used
Get rid of those two warnings:
drivers/media/platform/davinci/vpif_capture.c: In function 'vpif_remove':
drivers/media/platform/davinci/vpif_capture.c:1722:21: warning: variable 'common' set but not used [-Wunused-but-set-variable]
  struct common_obj *common;
                     ^~~~~~
drivers/media/platform/davinci/vpif_display.c: In function 'vpif_remove':
drivers/media/platform/davinci/vpif_display.c:1342:21: warning: variable 'common' set but not used [-Wunused-but-set-variable]
  struct common_obj *common;
                     ^~~~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-17 11:19:41 -03:00