| Commit message (Collapse) | Author | Age | Files | Lines |
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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>
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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>
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V4L2 drivers should use MONOTONIC timestamps instead of gettimeofday,
which is affected by daylight savings time.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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this patch sets nbuffers to three or more and drops the
unset member video_limit which just a copy paste from
earlier driver.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Querycap shouldn't set the version field (the core does that for you),
but it should set the device_caps field.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Since all the drivers that use `struct v4l2_fh' use the core
priority checking, the setting of the flag in the drivers can
be removed.
Signed-off-by: Ramakrishnan Muthukrishnan <ramakrmu@cisco.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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The video-level enum_dv_timings and dv_timings_cap operations are
deprecated in favor of the pad-level versions. All subdev drivers
implement the pad-level versions, switch to them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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The g_std and s_std operations are video-related, move them to the video
ops where they belong.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.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 <m.chehab@samsung.com>
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The vb2 core ignores any return code from the stop_streaming op.
And there really isn't anything it can do anyway in case of an error.
So change the return type to void and update any drivers that implement it.
The int return gave drivers the idea that this operation could actually
fail, but that's really not the case.
The pwc amd sdr-msi3101 drivers both had this construction:
if (mutex_lock_interruptible(&s->v4l2_lock))
return -ERESTARTSYS;
This has been updated to just call mutex_lock(). The stop_streaming op
expects this to really stop streaming and I very much doubt this will
work reliably if stop_streaming just returns without really stopping the
DMA.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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start_streaming call back fails
this patch releases the buffer by calling vb2_buffer_done(),
with state marked as VB2_BUF_STATE_QUEUED if start_streaming()
call back fails.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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from commit-id: b3379c6201bb3555298cdbf0aa004af260f2a6a4
"vb2: only call start_streaming if sufficient buffers are queued"
the vb2 framework warns on (WARN_ON()) if all the active buffers
are not released when streaming is stopped, initially the vb2 silently
released the buffer internally if the buffer was not released by
the driver.
This patch fixes following issue:
WARNING: CPU: 0 PID: 2049 at drivers/media/v4l2-core/videobuf2-core.c:2011 __vb2_queue_cancel+0x1a0/0x218()
Modules linked in:
CPU: 0 PID: 2049 Comm: vpfe_video Tainted: G W 3.14.0-rc5-00414-ged97a6f #89
[<c000e3f0>] (unwind_backtrace) from [<c000c618>] (show_stack+0x10/0x14)
[<c000c618>] (show_stack) from [<c001adb0>] (warn_slowpath_common+0x68/0x88)
[<c001adb0>] (warn_slowpath_common) from [<c001adec>] (warn_slowpath_null+0x1c/0x24)
[<c001adec>] (warn_slowpath_null) from [<c0252e0c>] (__vb2_queue_cancel+0x1a0/0x218)
[<c0252e0c>] (__vb2_queue_cancel) from [<c02533a4>] (vb2_queue_release+0x14/0x24)
[<c02533a4>] (vb2_queue_release) from [<c025a65c>] (vpfe_release+0x60/0x230)
[<c025a65c>] (vpfe_release) from [<c023fe5c>] (v4l2_release+0x34/0x74)
[<c023fe5c>] (v4l2_release) from [<c00b4a00>] (__fput+0x80/0x224)
[<c00b4a00>] (__fput) from [<c00341e8>] (task_work_run+0xa0/0xd0)
[<c00341e8>] (task_work_run) from [<c001cc28>] (do_exit+0x244/0x918)
[<c001cc28>] (do_exit) from [<c001d344>] (do_group_exit+0x48/0xdc)
[<c001d344>] (do_group_exit) from [<c0029894>] (get_signal_to_deliver+0x2a0/0x5bc)
[<c0029894>] (get_signal_to_deliver) from [<c000b888>] (do_signal+0x78/0x3a0)
[<c000b888>] (do_signal) from [<c000bc54>] (do_work_pending+0xa4/0xb4)
[<c000bc54>] (do_work_pending) from [<c00096dc>] (work_pending+0xc/0x20)
---[ end trace 5faa75e8c2f8a6a1 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2049 at drivers/media/v4l2-core/videobuf2-core.c:1095 vb2_buffer_done+0x1e0/0x224()
Modules linked in:
CPU: 0 PID: 2049 Comm: vpfe_video Tainted: G W 3.14.0-rc5-00414-ged97a6f #89
[<c000e3f0>] (unwind_backtrace) from [<c000c618>] (show_stack+0x10/0x14)
[<c000c618>] (show_stack) from [<c001adb0>] (warn_slowpath_common+0x68/0x88)
[<c001adb0>] (warn_slowpath_common) from [<c001adec>] (warn_slowpath_null+0x1c/0x24)
[<c001adec>] (warn_slowpath_null) from [<c0252c28>] (vb2_buffer_done+0x1e0/0x224)
[<c0252c28>] (vb2_buffer_done) from [<c0252e3c>] (__vb2_queue_cancel+0x1d0/0x218)
[<c0252e3c>] (__vb2_queue_cancel) from [<c02533a4>] (vb2_queue_release+0x14/0x24)
[<c02533a4>] (vb2_queue_release) from [<c025a65c>] (vpfe_release+0x60/0x230)
[<c025a65c>] (vpfe_release) from [<c023fe5c>] (v4l2_release+0x34/0x74)
[<c023fe5c>] (v4l2_release) from [<c00b4a00>] (__fput+0x80/0x224)
[<c00b4a00>] (__fput) from [<c00341e8>] (task_work_run+0xa0/0xd0)
[<c00341e8>] (task_work_run) from [<c001cc28>] (do_exit+0x244/0x918)
[<c001cc28>] (do_exit) from [<c001d344>] (do_group_exit+0x48/0xdc)
[<c001d344>] (do_group_exit) from [<c0029894>] (get_signal_to_deliver+0x2a0/0x5bc)
[<c0029894>] (get_signal_to_deliver) from [<c000b888>] (do_signal+0x78/0x3a0)
[<c000b888>] (do_signal) from [<c000bc54>] (do_work_pending+0xa4/0xb4)
[<c000bc54>] (do_work_pending) from [<c00096dc>] (work_pending+0xc/0x20)
---[ end trace 5faa75e8c2f8a6a2 ]---
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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In commit 02f142ecd24aaf891324ffba8527284c1731b561 support was added to
start_streaming to return -ENOBUFS if insufficient buffers were queued
for the DMA engine to start. The vb2 core would attempt calling
start_streaming again if another buffer would be queued up.
Later analysis uncovered problems with the queue management if start_streaming
would return an error: the buffers are enqueued to the driver before the
start_streaming op is called, so after an error they are never returned to
the vb2 core. The solution for this is to let the driver return them to
the vb2 core in case of an error while starting the DMA engine. However,
in the case of -ENOBUFS that would be weird: it is not a real error, it
just says that more buffers are needed. Requiring start_streaming to give
them back only to have them requeued again the next time the application
calls QBUF is inefficient.
This patch changes this mechanism: it adds a 'min_buffers_needed' field
to vb2_queue that drivers can set with the minimum number of buffers
required to start the DMA engine. The start_streaming op is only called
if enough buffers are queued. The -ENOBUFS handling has been dropped in
favor of this new method.
Drivers are expected to return buffers back to vb2 core with state QUEUED
if start_streaming would return an error. The vb2 core checks for this
and produces a warning if that didn't happen and it will forcefully
reclaim such buffers to ensure that the internal vb2 core state remains
consistent and all buffer-related resources have been correctly freed
and all op calls have been balanced.
__reqbufs() has been updated to check that at least min_buffers_needed
buffers could be allocated. If fewer buffers were allocated then __reqbufs
will free what was allocated and return -ENOMEM. Based on a suggestion from
Pawel Osciak.
__create_bufs() doesn't do that check, since the use of __create_bufs
assumes some advance scenario where the user might want more control.
Instead streamon will check if enough buffers were allocated to prevent
streaming with fewer than the minimum required number of buffers.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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This works together with the retry_start_streaming mechanism to allow userspace
to start streaming even if not all required buffers have been queued.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Cc: Tomasz Stanislawski <t.stanislaws@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Kamil Debski <k.debski@samsung.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Rewrite the return statement in vpfe_video.c. This will prevent
the checkpatch.pl script from generating a warning saying
to remove () from this particular return statement.
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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media_entity_cleanup() frees the links array which will be accessed by
media_entity_remove_links() called by v4l2_device_unregister_subdev().
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Function media_entity_remote_source actually returns the remote pad to
the given one, regardless if this is the source or the sink pad.
Name media_entity_remote_pad is more adequate for this function.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Correct spelling typo in staging/media/davinci
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This ioctl is defined as IOW, so pass the argument by value instead of by
reference. I could have chosen to add const instead, but this is 1) easier
to handle in drivers and 2) consistent with the s_std subdev operation.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This removes some incorrect dv_preset references left over from copy-and-paste
errors.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Add a generic video driver functionality to be used by all the vpfe
drivers for davinci SoCs. The functionality includes all the
standard v4l2 interfaces including streaming. The video node
interface can be used both as an input and output node for both
continuous and single shot modes. Also supports dv_presets to include
HD modes, wth support for both user pointer IO and mmap. The buffering
mechanism is based on videobuf2 interface.
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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