To make the pipeline structure and operations usable without video
devices the frame end processing must be decoupled from struct
vsp1_video. Implement this by calling the video frame end function
indirectly through a function pointer in struct vsp1_pipeline.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

The field is always equal to the num_inputs field plus one, remove the
duplicate.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Only RPFs and WPFs can be associated with video nodes, don't waste
memory by storing the video pointer in all entities.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Not all VSP1 instances include a UDS. Make the renesas,#uds DT property
optional and accept a number of UDS equal to 0 as valid.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

The rwpf queue operation doesn't queue a buffer but sets the memory
address for the next run. Rename it to set_memory and pass it a new
structure independent of the video buffer than only contains memory
information.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

To make the video device nodes optional we need to decouple the [rw]pf
instances from the video devices. Move video devices out of struct
vsp1_rwpf and instantiate them dynamically in the core driver code.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

The structure represent a vsp1 videobuf2 buffer, name it accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

This removes the dependency of vsp1_rpf and vsp1_wpf on vsp1_video,
making it possible to reuse the operations without a V4L2 video device
node.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Move the format from struct vsp1_video to struct vsp1_rwpf to prepare
for VSPD KMS support that will not instantiate V4L2 video device nodes.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

The rwpf field contains a pointer to the rpf or wpf associated with the
video node. Instead of storing it as a vsp1_entity, store the
corresponding vsp1_rwpf pointer to allow accessing the vsp1_rwpf fields
directly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

There's no need to spread the code across multiple source files.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Tri-planar memory formats store the Y, U and V components in separate
planes. The VSP hardware supports them, the driver now does too.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

The formats use three planes through the multiplanar API, allowing for
non-contiguous planes in memory.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Fix the following sparse warnings:

ti-vpe/cal.c:387:26: warning: incorrect type in return expression (different address spaces)
ti-vpe/cal.c:459:26: warning: incorrect type in return expression (different address spaces)
ti-vpe/cal.c:503:27: warning: incorrect type in argument 6 (different address spaces)
ti-vpe/cal.c:509:47: warning: incorrect type in argument 6 (different address spaces)
ti-vpe/cal.c:518:47: warning: incorrect type in argument 6 (different address spaces)
ti-vpe/cal.c:526:31: warning: incorrect type in argument 6 (different address spaces)
ti-vpe/cal.c:1807:24: warning: Using plain integer as NULL pointer
ti-vpe/cal.c:1844:16: warning: Using plain integer as NULL pointer

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

There is a new control V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME to
force an encoder key frame. It is the same as requesting
V4L2_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE_I_FRAME.

Signed-off-by: Wu-Cheng Li <wuchengli@chromium.org>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Some drivers also need a control like
V4L2_CID_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE to force an encoder
key frame. Add a general V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME
so the new drivers and applications can use it.

Signed-off-by: Wu-Cheng Li <wuchengli@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

bytesperline should be the bytesperline for the first plane for planar
formats, not that of all planes combined.

This fixes a crash in xawtv caused by the wrong bpl.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1305389


Reported-and-tested-by: Stas Sergeev <stsp@list.ru>

Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

The build of m32r allmodconfig fails with the error:
 drivers/media/v4l2-core/videobuf2-dma-contig.c:492:28: error: implicit
	declaration of function 'dma_get_cache_alignment'

The build of videobuf2-dma-contig.c depends on HAS_DMA and it is
correctly mentioned in the Kconfig but the symbol VIDEO_TI_CAL also
selects VIDEOBUF2_DMA_CONTIG, so it is trying to compile
videobuf2-dma-contig.c even though HAS_DMA is not defined.

Fixes: 343e89a7

 ("[media] media: ti-vpe: Add CAL v4l2 camera capture driver")

Cc: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

The Timberdale FPGA video driver has not seen any real development
since 2011 (and very little before that).

One of the problems with the timblogiw driver is that it uses videobuf
instead of the newer vb2 framework. The long term goal is to either
convert or remove any driver still using videobuf. Since none of the
core v4l developers has the hardware, we cannot convert it ourselves.

As far as I can tell it was only used in an Intel demo board in 2009
using Meego:

http://www.chinait.com/intelcontent/intelprc/admin/PDFFile/20106411545.pdf



which has since been superseded.

Moving this driver to staging is the first step towards removal. After 2 or
3 kernel cycles it will be removed altogether unless someone steps up to
clean up this driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Richard Röjfors <richard@puffinpack.se>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

The V4L2_CID_TX_EDID_PRESENT control reports if an EDID is present.
The adv7511 however still reported the EDID present after disconnecting
the HDMI cable. Fix the logic regarding this control. And when the EDID
is disconnected also call ADV7511_EDID_DETECT to notify the bridge driver.
This was also missing.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org>      # for v3.12 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

It makes sense to make the min_t() cast unsigned here since we don't
really want negative sizes.  Making it signed causes a static checker
warning in Smatch.  Smatch knows "fw->size - i" is positive but it
doesn't know that fw->size is less than INT_MAX so in theory casting it
to int might lead to a negative.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Since kthread_run returns -ENOMEM if failed,
it needs to be checked whether it is error, not whether it is null.

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

After sub-dev registration in v4l2_async_test_notify(), the v4l2-async
core calls the registered_async callback but if a sub-dev driver does
not implement it, v4l2_subdev_call() will return a -ENOIOCTLCMD which
should not be considered an error.

Reported-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Benoit Parrot <bparrot@ti.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Currently, it is initializing the driver name using the wrong
name ("usb"). Use the generic function, as its logic works
best, and avoids repeating the very same code everywhere.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

smscore_getbuffer() calls internally wait_event(), with can sleep.
As smsusb_onresponse() is called on interrupt context, this causes
the following warning:

	BUG: sleeping function called from invalid context at drivers/media/common/siano/smscoreapi.c:1653
	in_atomic(): 1, irqs_disabled(): 1, pid: 11084, name: systemd-udevd
	INFO: lockdep is turned off.
	irq event stamp: 0
	hardirqs last  enabled at (0): [<          (null)>]           (null)
	hardirqs last disabled at (0): [<ffffffff811480f7>] copy_process.part.7+0x10e7/0x56d0
	softirqs last  enabled at (0): [<ffffffff81148193>] copy_process.part.7+0x1183/0x56d0
	softirqs last disabled at (0): [<          (null)>]           (null)
	CPU: 2 PID: 11084 Comm: systemd-udevd Tainted: G    B   W       4.5.0-rc3+ #47
	Hardware name:                  /NUC5i7RYB, BIOS RYBDWi35.86A.0350.2015.0812.1722 08/12/2015
	 0000000000000000 ffff8803c6907a80 ffffffff81933901 ffff8802bd916000
	 ffff8802bd9165c8 ffff8803c6907aa8 ffffffff811c6af5 ffff8802bd916000
	 ffffffffa0ce9b60 0000000000000675 ffff8803c6907ae8 ffffffff811c6ce5
	Call Trace:
	 <IRQ>  [<ffffffff81933901>] dump_stack+0x85/0xc4
	 [<ffffffff811c6af5>] ___might_sleep+0x245/0x3a0
	 [<ffffffff811c6ce5>] __might_sleep+0x95/0x1a0
	 [<ffffffffa0ce020a>] ? list_add_locked+0xca/0x140 [smsmdtv]
	 [<ffffffffa0ce3b8d>] smscore_getbuffer+0x7d/0x120 [smsmdtv]
	 [<ffffffff8123819d>] ? trace_hardirqs_off+0xd/0x10
	 [<ffffffffa0ce3b10>] ? smscore_sendrequest_and_wait.isra.5+0x120/0x120 [smsmdtv]
	 [<ffffffffa0ce020a>] ? list_add_locked+0xca/0x140 [smsmdtv]
	 [<ffffffffa0ce13ca>] ? smscore_putbuffer+0x3a/0x40 [smsmdtv]
	 [<ffffffffa0d107bc>] smsusb_submit_urb+0x2ec/0x4f0 [smsusb]
	 [<ffffffffa0d10e36>] smsusb_onresponse+0x476/0x720 [smsusb]

Let's add a work queue to handle the bottom half, preventing this
problem.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

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>

Some macros were changed/removed at the material for v4.5. We need
to sync with those changes here, in order to avoid troubles.

* v4l_for_linus:
  [media] media.h: get rid of MEDIA_ENT_F_CONN_TEST
  [media] [for,v4.5] media.h: increase the spacing between function ranges
  [media] media: i2c/adp1653: probe: fix erroneous return value
  [media] media: davinci_vpfe: fix missing unlock on error in vpfe_prepare_pipeline()

Defining it as a connector was a bad idea. Remove it while it is
not too late.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Defining it as a connector was a bad idea. Remove it while it is
not too late.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Each function range is quite narrow and especially for connectors this
will pose a problem. Increase the function ranges while we still can and
move the connector range to the end so that range is practically limitless.

[mchehab@osg.samsung.com: Rebased to apply at Linus tree]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

MEDIA_ENT_F_CONN_TEST is not really a connector, it is actually
a signal generator. Also, as other drivers use the
V4L2_CID_TEST_PATTERN control for signal generators, let's change
the driver accordingly.

Tested with Terratec Grabster AV350.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

This macro is not used inside the driver. get rid of it.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

This is not used on the driver. remove it.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

This fixes this warning:

	v4l2-mc.c: In function 'v4l2_mc_create_media_graph':
	v4l2-mc.c:60:69: warning: variable 'sensor' set but not used [-Wunused-but-set-variable]

We could solve it the other way: don't do the second loop for
webcams. However, that would fail if a chip would have two sensors
plugged. This is not the current case, but it doesn't hurt to be
future-safe here, specially since this code runs only once during
device probe. So, performance is not an issue here.

Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

We need to add connectors to the cx231xx graph.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

As si2157 doesn't use the subdev, but has instead a binding
logic that doesn't have any core framework, we need to manually
pass the media_device struct via platform data on every place
it is called.

This fixes support for HVR-955Q when MC is enabled.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

As this tuner doesn't use the usual subdev interface, we need
to register it manually.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Instead of having its own routine, use the one defined at the
core, as it is generic enough to handle the cx231xx usecases.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

When in analog mode, the RF connector will be created by
em28xx-video. However, when the device is in digital mode only,
the RF connector is not shown. In this case, let the DVB
core to create it for us.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Except for the usbuvc driver (with has an embedded media_device
struct on it), the other drivers have a pointer to media_device.

On those drivers, replace their own implementation for the core
one. That warrants that those subdev drivers will fill the
media_device info the same way.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>