Commit Graph

54 Commits

Author SHA1 Message Date
Mauro Carvalho Chehab
5800571960 Linux 5.2-rc4
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Merge tag 'v5.2-rc4' into media/master

There are some conflicts due to SPDX changes. We also have more
patches being merged via media tree touching them.

So, let's merge back from upstream and address those.

Linux 5.2-rc4

* tag 'v5.2-rc4': (767 commits)
  Linux 5.2-rc4
  MAINTAINERS: Karthikeyan Ramasubramanian is MIA
  i2c: xiic: Add max_read_len quirk
  lockref: Limit number of cmpxchg loop retries
  uaccess: add noop untagged_addr definition
  x86/insn-eval: Fix use-after-free access to LDT entry
  kbuild: use more portable 'command -v' for cc-cross-prefix
  s390/unwind: correct stack switching during unwind
  block, bfq: add weight symlink to the bfq.weight cgroup parameter
  cgroup: let a symlink too be created with a cftype file
  drm/nouveau/secboot/gp10[2467]: support newer FW to fix SEC2 failures on some boards
  drm/nouveau/secboot: enable loading of versioned LS PMU/SEC2 ACR msgqueue FW
  drm/nouveau/secboot: split out FW version-specific LS function pointers
  drm/nouveau/secboot: pass max supported FW version to LS load funcs
  drm/nouveau/core: support versioned firmware loading
  drm/nouveau/core: pass subdev into nvkm_firmware_get, rather than device
  block: free sched's request pool in blk_cleanup_queue
  pktgen: do not sleep with the thread lock held.
  net: mvpp2: Use strscpy to handle stat strings
  net: rds: fix memory leak in rds_ib_flush_mr_pool
  ...

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-11 12:09:28 -04:00
Thomas Gleixner
2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00
Philipp Zabel
8a8621ba01 media: coda: add decoder MPEG-2 profile and level controls
The MPEG-2 decoder firmware reports profile and level indication that
can be used to set V4L2 MPEG-2 profile and level controls

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-29 06:20:34 -04:00
Philipp Zabel
23e0b8c65e media: coda: add decoder MPEG-4 profile and level controls
The MPEG-4 decoder firmware reports profile and level indication values
that can be used to update V4L2 MPEG-4 profile and level controls.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-29 06:17:00 -04:00
Philipp Zabel
e45cf927f3 media: coda: update profile and level controls after sequence initialization
The header report return value from decoder sequence initialization is
available on CodaHx4 and CODA7541 already. Use the profile and level
identification values reported by the firmware to update codec specific
profile and level controls after sequence initialization has succeeded.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-21 07:24:51 -04:00
Philipp Zabel
3943f05982 media: coda: Add control for h.264 chroma qp index offset
Allow to set a fixed quantization parameter offset between luma and
chroma in the h.264 encoder.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16 14:09:45 -05:00
Philipp Zabel
31489f6bda media: coda: Add control for h.264 constrained intra prediction
Allow to enable constrained intra prediction in the h.264 encoder.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16 14:04:01 -05:00
Philipp Zabel
75fa6e4f83 media: coda: fix H.264 deblocking filter controls
Add support for the third loop filter mode
V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY,
and fix V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA and
V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA controls.

The filter offset controls are signed values in the -6 to 6 range and
are stored into the slice header fields slice_alpha_c0_offset_div2 and
slice_beta_offset_div2. The actual filter offsets FilterOffsetA/B are
double their value, in range of -12 to 12.

Rename variables to more closely match the nomenclature in the H.264
specification.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-07 08:19:01 -05:00
Philipp Zabel
8f90d15e6d media: coda: normalise debug output
Consistently add the context index to debug output, which otherwise is
impossible to make sense of when two contexts are running concurrently.
For this purpose, add a convenience macro coda_dbg(). Use the function
name with the coda_ prefix stripped as keyword where applicable, and
consistently use vid-out and vid-cap names for the queues. Add sequence
counters to the decoder job finished message and correctly indicate B
frames. Add a start streaming message to complement the stop streaming
message and a start encoding message to complement the existing start
decoding message.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-23 05:36:07 -05:00
Philipp Zabel
cdd87d3a2c media: coda: remove unused instances list
The per-device instance list is unused, remove it.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-23 05:27:59 -05:00
Philipp Zabel
51407c2da0 media: coda: always hold back decoder jobs until we have enough bitstream payload
The bitstream prefetch unit reads data in 256 byte blocks with some kind
of queueing. For the decoder to see data up to a desired position in the
next run, the bitstream has to be filled for 2 256 byte blocks past that
position aligned up to the next 256 byte boundary.
This should make sure we never run into a buffer underrun condition if
userspace does not supply new input buffers fast enough.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-23 05:26:24 -05:00
Philipp Zabel
6c0f5d236f media: coda: store unmasked fifo position in meta
Storing the unmasked kfifo->in position as meta->start and ->end allows
to more easily compare a point past meta->end with the current
kfifo->in.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-23 05:21:37 -05:00
Philipp Zabel
649cfc2bdf media: coda: fix memory corruption in case more than 32 instances are opened
The ffz() return value is undefined if the instance mask does not
contain any zeros. If it returned 32, the following set_bit would
corrupt the debugfs_root pointer.
Switch to IDA for context index allocation. This also removes the
artificial 32 instance limit for all except CodaDx6.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-23 05:19:39 -05:00
Philipp Zabel
0dff710d1f media: coda: add SPS fixup code for frame sizes that are not multiples of 16
The CODA7541 firmware does not set the SPS frame cropping fields to
properly describe coded h.264 streams with frame sizes that are not a
multiple of the macroblock size.
This adds RBSP parsing code and a SPS fixup routine to manually replace
the cropping information in the headers produced by the firmware with
the correct values.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
[hans.verkuil@cisco.com: added explanation of SPS RBSP to comment]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27 06:58:54 -04:00
Philipp Zabel
42a68012e6 media: coda: add read-only h.264 decoder profile/level controls
The decoder profile/level controls initially can be used to determine
supported profiles and levels. The values are set for a given stream
once the headers are parsed.

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+samsung@kernel.org>
2018-07-04 08:06:39 -04:00
Philipp Zabel
664878184f media: coda: bump maximum number of internal framebuffers to 19
While the h.264 standard only allows up to 16 reference frames, the CODA
firmware needs two more buffers: one to hold the currently decoded frame
and one for the display frame. Adding the framebuffer needed by the
driver for VDOA operation brings the total to a maximum of 19 internal
framebuffers.
Lift the current maximum of 17 internal framebuffers to allow playback
of high profile streams that require more than 14 reference frames.

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>
2018-02-26 06:58:05 -05:00
Philipp Zabel
1d1ca23bcb media: coda: Add i.MX51 (CodaHx4) support
Add support for the CodaHx4 VPU used on i.MX51.

Decoding h.264, MPEG-4, and MPEG-2 video works, as well as encoding
h.264. MPEG-4 encoding is not enabled, it currently produces visual
artifacts.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: fix (bogus) sparse warning about uninited me_bits]
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-26 06:47:24 -05:00
Philipp Zabel
cb778f5c85 media: coda: rename the picture run timeout error handler
I would have liked the the picture run timeout error handler to be renamed to
something a bit more descriptive in the original commit fb2be08f8c ("[media]
coda: first step at error recovery").
Somehow v1 [1] was merged instead of v2 [2].

[1] https://patchwork.kernel.org/patch/9663965/
[2] https://patchwork.kernel.org/patch/9774239/

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-24 09:39:29 -03:00
Lucas Stach
fb2be08f8c [media] coda: first step at error recovery
This implements a simple handler for the case where decode did not finish
sucessfully. This might be helpful during normal streaming, but for now it
only handles the case where the context would deadlock with userspace,
i.e. userspace issued DEC_CMD_STOP and waits for EOS, but after the failed
decode run we would hold the context and wait for userspace to queue more
buffers.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-20 09:03:51 -03:00
Philipp Zabel
7e68c53387 [media] coda: implement forced key frames
Implement the V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME control to force IDR
frames. This is useful to implement VFU (Video Fast Update) on RTP
transmissions.
We already force an IDR frame at the beginning of each GOP to work
around a firmware bug on i.MX27, use the same mechanism to service IDR
requests from userspace.

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>
2017-06-07 12:29:34 -03:00
Philipp Zabel
b14ac54568 [media] coda: improve colorimetry handling
The hardware codec is not colorspace aware. We should trust userspace to
set the correct colorimetry information on the OUTPUT queue and mirror
the exact same setting on the CAPTURE queue.

There is no reason to restrict colorspace to JPEG or REC709 only. Also,
set the default colorspace, as returned by calling VIDIOC_TRY/S_FMT with
V4L2_COLORSPACE_DEFAULT, initially.

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>
2017-06-06 16:48:47 -03:00
Lucas Stach
03d67e706f [media] coda: bump maximum number of internal framebuffers to 17
The h.264 standard allows up to 16 reference frame for the high profile
and we need one additional internal framebuffer when the VDOA is in use.

Lift the current maximum of 8 internal framebuffers to allow playback
of those video streams.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-19 07:44:50 -03:00
Philipp Zabel
691222713d [media] coda: disable reordering for baseline profile h.264 streams
With reordering enabled, the sequence init in CODA960 firmware requests an
unreasonable number of internal frames for some baseline profile streams.
Disabling the reordering feature manually if baseline streams are detected
fixes this problem.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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>
2017-03-22 10:06:26 -03:00
Philipp Zabel
0eef89403e [media] coda: pad first h.264 buffer to 512 bytes
The bitstream reader needs 512 bytes ready to read to examine the
headers in the first frame. If that frame is too small, prepend it
with a filler NAL.

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>
2017-03-22 10:06:26 -03:00
Philipp Zabel
331e7860f3 [media] coda: keep queued buffers on a temporary list during start_streaming
Keeping buffers filled into the bitstream on a temporary list instead of
immediately calling vb2_buffer_done on each of them immediately allows
start_streaming to correctly decide whether they should be marked as
done or requeued if an error occurs after the bitstream has been filled.

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>
2017-03-22 10:06:25 -03:00
Baruch Siach
8af7779f3c [media] coda: add Freescale firmware compatibility location
The Freescale provided imx-vpu looks for firmware files under /lib/firmware/vpu
by default. Make coda look there for firmware files to ease the update path.

Cc: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03 14:23:37 -02:00
Michael Tretter
e7f3c54810 [media] coda: use VDOA for un-tiling custom macroblock format
If the CODA driver is configured to produce NV12 output and the VDOA is
available, the VDOA can be used to transform the custom macroblock tiled
format to a raster-ordered format for scanout.

In this case, set the output format of the CODA to the custom macroblock
tiled format, disable the rotator, and use the VDOA to write to the v4l2
buffer. The VDOA is synchronized with the CODA to always un-tile the
frame that the CODA finished in the previous run.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31 08:37:43 -02:00
Hans Verkuil
53ddcc683f [media] media/platform: convert drivers to use the new vb2_queue dev field
Stop using alloc_ctx and just fill in the device pointer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Cc: Scott Jiang <scott.jiang.linux@gmail.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 14:39:21 -03:00
Philipp Zabel
2ac7f08e30 [media] coda: add support for firmware files named as distributed by NXP
Try loading the firmware from firmware files named vpu_fw_imx*.bin, as
they are originally distributed by NXP. Fall back to v4l-coda*-imx6*.bin.

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@osg.samsung.com>
2016-03-03 07:33:26 -03:00
Philipp Zabel
d4de047b53 [media] coda: relax coda_jpeg_check_buffer for trailing bytes
coda_jpeg_check_buffer only cares about the buffer length and contents,
so change the parameter type back from v4l2_vb2_buffer to just the
vb2_buffer.
Instead of just checking the first and last bytes for the SOI and EOI
markers, relax the EOI marker check a bit and allow up to 32 trailing
bytes after the EOI marker as hardware generated JPEGs sometimes contain
some alignment overhead.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-23 14:02:14 -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
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
Junghak Sung
c139990e84 [media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2
Make videobuf2-v4l2 as a wrapper of videobuf2-core for v4l2-use.
And replace videobuf2-core.h with videobuf2-v4l2.h.
This renaming change should be accompanied by the modifications
of all device drivers that include videobuf2-core.h.
It can be done with just running this shell script.

replace()
{
str1=$1
str2=$2
dir=$3
for file in $(find $dir -name *.h -o -name *.c -o -name Makefile)
do
    echo $file
    sed "s/$str1/$str2/g" $file > $file.out
    mv $file.out $file
done
}

replace "videobuf2-core" "videobuf2-v4l2" "include/media/"
replace "videobuf2-core" "videobuf2-v4l2" "drivers/media/"
replace "videobuf2-core" "videobuf2-v4l2" "drivers/usb/gadget/"
replace "videobuf2-core" "videobuf2-v4l2" "drivers/staging/media/"

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 08:48:18 -03:00
Philipp Zabel
a269e53b1a [media] coda: add macroblock tiling support
Storing internal frames in macroblock tiled order improves memory
access patterns by allowing increased burst sizes when transferring
the uncompressed macroblocks to or from main memory.
The translation logic only supports a single chroma base address,
so this is only supported for the chroma interleaved NV12 format.

Since the rotator used to copy the decoder output into the v4l2
capture buffers does not seem to support the tiled format correctly,
only enable it in the encoder for now.

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@osg.samsung.com>
2015-07-17 11:28:59 -03:00
Philipp Zabel
da2b3b3e11 [media] coda: implement VBV delay and buffer size controls
The encoder allows to specify the VBV model reference decoder's initial
delay and buffer size. Export the corresponding V4L2 controls.

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@osg.samsung.com>
2015-07-17 11:24:05 -03:00
Philipp Zabel
47f3fa63ee [media] coda: rework meta counting and add separate lock
Keep count of number of buffer meta structures in the list and use
a separate spinlock for operations on this counted list instead
of reusing the bitstream mutex in some places and none at all in
others.

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@osg.samsung.com>
2015-07-17 11:19:32 -03:00
Philipp Zabel
9f2bfb33a8 [media] coda: Set last buffer flag and fix EOS event
Setting the last buffer flag causes the videobuf2 core to return -EPIPE from
DQBUF calls on the capture queue after the last buffer is dequeued.
This patch also fixes the EOS event to conform to the specification. It now is
sent right after the last buffer has been decoded instead of when the last
buffer is dequeued.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-12 03:54:07 -03:00
Philipp Zabel
9a1a8f9953 [media] coda: Add tracing support
This patch adds tracepoints to the coda driver that can be used together
with the v4l2:v4l2_qbuf and v4l2:v4l2_dqbuf tracepoints to to follow video
frames through the mem2mem device.

For encoding with the BIT processor:
    coda:coda_enc_pic_run
    coda:coda_enc_pic_done

For decoding with the BIT processor:
    coda:coda_bit_queue
    coda:coda_dec_pic_run
    coda:coda_dec_pic_done
    coda:coda_dec_rot_done

Additionally, two low level tracepoints register whenever the BIT processor
is started and returns:
    coda:coda_bit_run
    coda:coda_bit_done

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10 10:12:31 -03:00
Philipp Zabel
582d887211 [media] coda: fix fill bitstream errors in nonstreaming case
When queueing a buffer into the bitstream fails, it has to be requeued
in the videobuf2 queue before streaming starts, but while streaming it
should be returned to userspace with an error.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10 10:11:05 -03:00
Philipp Zabel
650b939ecd [media] coda: move parameter buffer in together with context buffer allocation
The parameter buffer is a per-context buffer, so we can allocate and free it
together with the other context buffers during REQBUFS.
Since this was the last context buffer allocated in coda-common.c, we can now
move coda_alloc_context_buf into coda-bit.c.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10 10:08:30 -03:00
Philipp Zabel
ad532d37b2 [media] coda: allocate bitstream buffer from REQBUFS, size depends on the format
Allocating the bitstream buffer only when the format is set allows to guarantee
that at least two frames fit into the bitstream buffer. For small frame sizes
a smaller bitstream buffer can be allocated. Since the bitstream buffer size now
depends on the format, replace CODA_MAX_FRAME_SIZE with ctx->bitstream.size
where appropriate and remove the now unused constant.
Since REQBUFS can be called multiple times, but the format can't be changed
unless REQBUFS 0 was called before, we can just keep the allocated context and
bitstream buffers if REQBUFS is called multiple times with a non-zero buffer
count.

[fixed a resource leak preventing repeatedly decoding]

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10 10:07:58 -03:00
Philipp Zabel
73751da61c [media] coda: allocate per-context buffers from REQBUFS
Allocate the per-context buffers from REQBUFS instead in start_encoding or
start_decoding. This allows to stop and start streaming independently of
buffer (re)allocation

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10 10:06:46 -03:00
Philipp Zabel
2b7684683d [media] coda: bitstream payload is unsigned
kfifo_len is unsigned int, return it as such.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10 10:04:56 -03:00
Philipp Zabel
a22496c662 [media] coda: add support for contexts that do not use the BIT processor
In preparation for CODA9 JPEG support, allow contexts that
control hardware units directly, without the BIT processor.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-02 10:37:34 -02:00
Philipp Zabel
6dd5ef5bdd [media] coda: remove unused isequence, reset qsequence in stop_streaming
The isequence counter is never used, qsequence counts the buffers queued into
the bit decoder bitstream ringbuffer. It needs to be reset in stop_streaming.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-02 10:25:14 -02:00
Philipp Zabel
edc16cb115 [media] coda: drop JPEG buffers not framed by SOI and EOI markers
This patch adds a quick check for valid JPEG frames before feeding them into
the bitstream buffer: Frames that do not begin with the JPEG start of image
marker and end with the end of image marker are dropped.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-10-28 15:41:07 -02:00
Philipp Zabel
7cbb105fef [media] coda: store bitstream buffer position with buffer metadata
Storing the buffer position in the bitstream with the buffer metadata
allows to later use that information to drop metadata for skipped buffers
and to determine whether bitstream padding has to be applied.

This patch also renames struct coda_timestamp to struct coda_buffer_meta
to make clear that it contains more than only the buffer timestamp.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-10-28 15:37:32 -02:00
Philipp Zabel
cb1d3a3363 [media] coda: add CODA7541 JPEG support
This patch adds JPEG encoding and decoding support for CODA7541,
using the BIT processor. Separate JPEG encoder and decoder video
devices are created due to different streaming behaviour and
different supported pixel formats.
The hardware can not change subsampling on the fly, but encode
and decode 4:2:2 subsampled JPEG images from and into this format.

The CODA7541 JPEG decoder uses the bitstream buffer and thus can run
without new buffers queued if there is a buffer in the bitstream.

Since there is no standard way to store the colorspace used in
JPEGs, and to make v4l2-compliance happy, the JPEG format always
reports V4L2_COLORSPACE_JPEG.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-10-28 15:03:16 -02:00
Philipp Zabel
2c11d1bdfc [media] coda: add coda_video_device descriptors
Each video device descriptor determines the name, callback ops, and input and
output formats on the corresponding video device. This simplifies coda_enum_fmt
and coda_try_fmt a bit and will simplify adding separate video devices for JPEG
codecs due to the slightly different behavior in the CodaDx6/CODA7542 case and
a separate hardware unit on CODA960.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-10-28 15:01:05 -02:00
Philipp Zabel
856d7d9326 [media] coda: add coda_write_base helper
Add a helper function that writes a vb2_buffer's Y, Cb, and
Cr plane base addresses of into three consecutive registers.
This moves common code out of coda-bit.c.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-10-28 14:26:53 -02:00