Applications may set data_offset when it refers to an output queue. So
driver need to account for it when getting the start address of input
image in the plane.
Meanwhile the mxc-jpeg codec requires the address (plane address +
data_offset) to be 16-aligned.
Fixes: 2db16c6ed7 ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Signed-off-by: Ming Qian <ming.qian@oss.nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
As the first frame in "repeat-mode" is the pattern, the pattern done
interrupt is ignored by the driver. With small resolution bitstreams,
the interrupts might fire too quickly and hardware combine two irqs to
once because irq handle have latency. Thus the driver might miss the
frame decode done interrupt from the first actual frame.
In order to avoid the driver wait for the frame done interrupt that has
been combined to the pattern done interrupt and been ignored, driver
will check the curr_desc and slot_status registers to figure out if the
decoding of actual frame is finished or not.
Firstly we check the curr_desc register,
- if it is still pointing to the pattern descriptor, the second actual
frame is not started, we can wait for its frame-done interrupt.
- if the curr_desc has pointed to the frame descriptor, then we check the
ongoing bit of slot_status register.
- if the ongoing bit is set to 1, the decoding of the actual frame is not
finished, we can wait for its frame-done interrupt.
- if the ongoing bit is set to 0, the decoding of the actual frame is
finished, we can't wait for the second interrupt, but mark it as done.
But there is still a small problem, that the curr_desc and slot_status
registers are not synchronous. curr_desc is updated when the
next_descpt_ptr is loaded, but the ongoing bit of slot_status is set
after the 32 bytes descriptor is loaded, there will be a short time
interval in between, which may cause fake false. Consider read register
is quite slow compared with IP read 32byte from memory, read twice
slot_status can avoid this situation.
Signed-off-by: Ming Qian <ming.qian@oss.nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
In order to decode a motion-jpeg bitstream, which doesn't provide a DHT,
the driver will first decode a pattern jpeg and use the DHT found in the
pattern to decode the first actual frame. This mode is called
"repeat-mode" and it utilizes linked descriptors.
The smallest supported resolution of 64x64 was used for that pattern to
not cause unneeded performance delay. This choice, however, can cause a
corrupted decoded picture of the first frame after the pattern, when the
resolution of that frame is larger than the pattern and is not aligned
to 64.
By altering the pattern size to 128x64, this corruption can be avoided.
That size has been confirmed to be safe by the hardware designers.
Additionally, a DMA buffer needs to be allocated to store the decoded
picture of the pattern image.
Signed-off-by: Ming Qian <ming.qian@oss.nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
When allocation failures are not cleaned up by the driver, further
allocation errors will be false-positives, which will cause buffers to
remain uninitialized and cause NULL pointer dereferences.
Ensure proper cleanup of failed allocations to prevent these issues.
Fixes: 2db16c6ed7 ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Cc: stable@vger.kernel.org
Signed-off-by: Ming Qian <ming.qian@oss.nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Ensure that the slot data pointers are reset to NULL and handles are
set to 0 after freeing the coherent memory. This makes he function
mxc_jpeg_alloc_slot_data() and mxc_jpeg_free_slot_data() safe to be
called multiple times.
Fixes: 2db16c6ed7 ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Cc: stable@vger.kernel.org
Signed-off-by: Ming Qian <ming.qian@oss.nxp.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Move function mxc_jpeg_free_slot_data() above mxc_jpeg_alloc_slot_data()
allowing to call that function during allocation failures.
No functional changes are made.
Fixes: 2db16c6ed7 ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Cc: stable@vger.kernel.org
Signed-off-by: Ming Qian <ming.qian@oss.nxp.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
When an output buffer contains error frame header,
v4l2_jpeg_parse_header() will return error, then driver will mark this
buffer and a capture buffer done with error flag in device_run().
But if the error occurs in the first frames, before setup the capture
queue, there is no chance to schedule device_run(), and there may be no
capture to mark error.
So we need to drop this buffer with error flag, and make the decoding
can continue.
Fixes: 2db16c6ed7 ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Cc: stable@vger.kernel.org
Signed-off-by: Ming Qian <ming.qian@oss.nxp.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
The proble is on the first line:
if (jpeg->pd_dev[i] && !pm_runtime_suspended(jpeg->pd_dev[i]))
If jpeg->pd_dev[i] is an error pointer, then passing it to
pm_runtime_suspended() will lead to an Oops. The other conditions
check for both error pointers and NULL, but it would be more clear to
use the IS_ERR_OR_NULL() check for that.
Fixes: fd0af4cd35 ("media: imx-jpeg: Ensure power suppliers be suspended before detach them")
Cc: <stable@vger.kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Since commit 88785982a1 ("media: vb2: use lock if wait_prepare/finish
are NULL") it is no longer needed to set the wait_prepare/finish
vb2_ops callbacks as long as the lock field in vb2_queue is set.
Since the vb2_ops_wait_prepare/finish callbacks already rely on that field,
we can safely drop these callbacks.
This simplifies the code and this is a step towards the goal of deleting
these callbacks.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> # for meson-ge2d
Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
After commit 0edb555a65 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all platform drivers below drivers/media to use .remove(), with
the eventual goal to drop struct platform_driver::remove_new(). As
.remove() and .remove_new() have the same prototypes, conversion is done
by just changing the structure member name in the driver initializer.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
The video drvdata should be set before the video device is registered,
otherwise video_drvdata() may return NULL in the open() file ops, and led
to oops.
Fixes: 2db16c6ed7 ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Cc: <stable@vger.kernel.org>
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: TaoJiang <tao.jiang_2@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Replace SET_RUNTIME_PM_OPS()/SET SYSTEM_SLEEP_PM_OPS() with their modern
RUNTIME_PM_OPS() and SYSTEM_SLEEP_PM_OPS() alternatives.
The combined usage of pm_ptr() and RUNTIME_PM_OPS/SYSTEM_SLEEP_PM_OPS()
allows the compiler to evaluate if the runtime suspend/resume() functions
are used at build time or are simply dead code.
This allows removing the CONFIG_PM ifdefery from the runtime
suspend/resume() functions.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
In section 4.5.1.5. Initialization, the step 4 may be skipped and
continue with the Capture Setup sequence, so if the capture has been
setup, there is no need to trigger the initial source change event, just
start decoding, and follow the dynamic resolution change flow if the
configured values do not match those parsed by the decoder.
And it won't fail the gstreamer pipeline.
Fixes: b833b17849 ("media: imx-jpeg: notify source chagne event when the first picture parsed")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
If the picture size parsed by decoder is different from those previously
established, it's a normal flow of dynamic resolution change, not an
error case, the log may mislead that some error occurs in decoding, so
remove the error log in this case.
Fixes: 2db16c6ed7 ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This mxc-jpeg driver doesn't allow the client to set the bytesperline,
but for some android cts case, it need to negotiate the bytesperline
between decoder and display, and fail the case if driver doesn't support
negotiating bytesperline
The jpegdec and jpegenc does support to set bytesperline which is
multiple of 2, and greater than the value calulated by driver.
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
After gstreamer rework the dynamic resolution change handling, gstreamer
stop doing capture buffer allocation based on guesses and wait for the
source change event when available. It requires driver always notify
source change event in the initialization, even if the size parsed is
equal to the size set on capture queue. otherwise, the pipeline will be
stalled.
Currently driver may not notify source change event if the parsed format
and size are equal to those previously established, but it may stall the
gstreamer pipeline.
The link of gstreamer patch is
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4437
Fixes: b4e1fb8643 ("media: imx-jpeg: Support dynamic resolution change")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
For consistency use goto instead of return.
This fixes a smatch warning:
drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c:2792 mxc_jpeg_probe() warn: missing unwind goto?
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
The last buffer from before the change must be marked,
with the V4L2_BUF_FLAG_LAST flag,
similarly to the Drain sequence above.
Meanwhile if V4L2_DEC_CMD_STOP is sent before
the source change triggered,
we need to restore the is_draing flag after
the draining in dynamic resolution change.
Fixes: b4e1fb8643 ("media: imx-jpeg: Support dynamic resolution change")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
There is no need to call the dev_err() function directly to print a custom
message when handling an error from platform_get_irq() function as
it is going to display an appropriate error message in case of a failure.
Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
imx jpeg encoder and decoder support 4 slots each,
aim to support some virtualization scenarios.
driver should only enable one slot one time.
but due to some hardware issue,
only slot 0 can be enabled in imx8q platform,
and they may be fixed in imx9 platform.
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
clear slot next desc ptr if config error,
otherwise codec will report config error interrupt repeatedly,
it may led to system hang.
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Variable initialization code in notify_src_chg() is incorrectly
indented. Fix it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
The call of mxc_jpeg_get_plane_size() from mxc_jpeg_dec_irq() sets
plane_no argument to 1. The compiler sees that it's possible to end up
with an access beyond the bounds of sizeimage, if mem_planes was too
large:
if (plane_no >= fmt->mem_planes) // mem_planes = 2+
return 0;
if (fmt->mem_planes == fmt->comp_planes) // comp_planes != mem_planes
return q_data->sizeimage[plane_no];
if (plane_no < fmt->mem_planes - 1) // mem_planes = 2
return q_data->sizeimage[plane_no];
comp_planes == 0 or 1 is safe. comp_planes > 2 would be out of bounds.
(This isn't currently possible given the contents of mxc_formats, though.)
Silence the warning by bounds checking comp_planes for future
robustness. Seen with GCC 13:
In function 'mxc_jpeg_get_plane_size',
inlined from 'mxc_jpeg_dec_irq' at ../drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c:729:14:
../drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c:641:42: warning: array subscript 2 is above array bounds of 'u32[2]' {aka 'unsigned int[2]'} [-Warray-bounds=]
641 | size += q_data->sizeimage[i];
| ~~~~~~~~~~~~~~~~~^~~
In file included from ../drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h:112,
from ../drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c:63:
../drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h: In function 'mxc_jpeg_dec_irq':
../drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h:84:41: note: while referencing 'sizeimage'
84 | u32 sizeimage[MXC_JPEG_MAX_PLANES];
| ^~~~~~~~~
Cc: Mirela Rabulea <mirela.rabulea@nxp.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
using the api of clk_bulk can simplify the code.
and the clock of the jpeg codec may be changed,
the clk_bulk api can be compatible with the future change.
Fixes: 4c2e5156d9 ("media: imx-jpeg: Add pm-runtime support for imx-jpeg")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Possible dereference null return after of_match_node,
so check for NULL of_id.
Signed-off-by: Mirela Rabulea <mirela.rabulea@oss.nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
the ioctl encoder/decoder cmd is under queue lock,
and buf_done is in the irq, it can't be locked with the mutex,
they are not synchronized.
when v4l2_update_last_buf_state is called to
handle the encoder/decoder stop cmd,
the last src buffer may be done at the same time.
so it's possible that last_src_buf is set,
but the output rdy_queue is empty,
then driver won't mark it stopped,
as v4l2_m2m_is_last_draining_src_buf() will always return false and
v4l2_m2m_dst_buf_is_last() return false too.
In this case, the drain will be blocked.
add the hw lock around the ioctl encoder/decoder cmd,
to synchronize with the buf_done.
Fixes: 4911c5acf9 ("media: imx-jpeg: Implement drain using v4l2-mem2mem helpers")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
mxc-jpeg supports non contiguous format nv12m,
and in order to compatible with the devices
that only support contiguous format nv12,
jpeg can support nv12 and nv12m in the same time.
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: document is_rgb variable]
The codec can support any image size WxH,
with arbitrary W (image width) and H (image height) dimensions.
But it requires buffer alignment,
so driver can report the aligned resolution through the g_fmt,
and report the actual resolution through the g_selection.
For encoder, it even support to encode a smaller jpeg
than the original picture through s_selection api.
For the decoder, we do not support cropping a portion smaller
than the original picture, due to hardware limitations (wrapper side).
Fixes: 9e7aa76cdb ("media: imx-jpeg: Align upwards buffer size")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
There is a hardware bug that the interrupt STMBUF_HALF may be triggered
after or when disable interrupt.
It may led to unexpected kernel panic.
And interrupt STMBUF_HALF and STMBUF_RTND have no other effect.
So disable them and the unused interrupts.
meanwhile clear the interrupt status when disable interrupt.
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
In dynamic resolution change, streamoff and streamon on the capture
queue may be called,
the V4L2_DEC_CMD_STOP cmd may be called before driver parsed the
jpeg header.
don't clear the stop state in streamoff of handling the
dynamic resolution change,
otherwise the drain may not complete.
Fixes: 4911c5acf9 ("media: imx-jpeg: Implement drain using v4l2-mem2mem helpers")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Add a timeout mechanism for each frame.
If the frame can't be decoded or encoded,
driver can cancel it to avoid hang.
Fixes: 2db16c6ed7 ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
The `dma_alloc_coherent()' already zeroes out memory for us, so we don't
need the redundant memset().
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
In function mxc_jpeg_probe(), when devm_clk_get() fail, the return value
will be unexpected, and it should be the devm_clk_get's error code.
Fixes: 4c2e5156d9 ("media: imx-jpeg: Add pm-runtime support for imx-jpeg")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jian Zhang <zhangjian210@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
The interrupt STMBUF_HALF may be triggered after frame done.
It may led to system hang if driver try to access the register after
power off.
Disable the slot interrupt when frame done.
Fixes: 2db16c6ed7 ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Tested-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
v4l2 m2m has supplied some helper function to handle drain,
so the driver can use the helper function directly.
Fixes: d8ebe298d0 ("media: imx-jpeg: Set V4L2_BUF_FLAG_LAST at eos")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
The hardware can support any image size WxH,
with arbitrary W (image width) and H (image height) dimensions.
Align upwards buffer size for both encoder and decoder.
and leave the picture resolution unchanged.
For decoder, the risk of memory out of bounds can be avoided.
For both encoder and decoder, the driver will lift the limitation of
resolution alignment.
For example, the decoder can support jpeg whose resolution is 227x149
the encoder can support nv12 1080P, won't change it to 1920x1072.
Fixes: 2db16c6ed7 ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
There is a hardware bug that it will load
the first 128 bytes of configuration data twice,
it will led to some configure error.
so shift the configuration data 128 bytes,
and make the first 128 bytes all zero,
then hardware will load the 128 zero twice,
and ignore them as garbage.
then the configuration data can be loaded correctly
Fixes: 2db16c6ed7 ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
the register CAST_NOMFRSIZE_LO should be equal to CAST_STATUS16
the register CAST_NOMFRSIZE_HI should be equal to CAST_STATUS17
the register CAST_OFBSIZE_LO should be equal to CAST_STATUS18
the register CAST_OFBSIZE_HI should be equal to CAST_STATUS19
Fixes: 2db16c6ed7 ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Implement V4L2_CID_JPEG_COMPRESSION_QUALITY
to set jpeg quality
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
The core will fill this in v4l_fill_fmtdesc(),
ensuring consistent format description names.
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
To support dynamic resolution change,
driver should meet the following conditions:
1. the previous pictures are all decoded before source change event.
2. prevent decoding new resolution pictures with incorrect capture
buffer, until user handle source change event and setup capture.
3. report correct fmt and resolution during source change.
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
The GStreamer v4l2videodec only ever calls S_FMT on the output side
and then expects G_FMT on the capture side to return a valid format.
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
