- 25 Mar, 2019 31 commits
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Mauro Carvalho Chehab authored
The only way for p_set to be NULL would be if vin_coef_set would be an empty array. On such case, the driver will OOPS, as it would try to de-reference a NULL value. So, the check if p_set is not NULL doesn't make any sense. Solves those two smatch warnings: drivers/media/platform/rcar-vin/rcar-dma.c:489 rvin_set_coeff() warn: variable dereferenced before check 'p_set' (see line 484) drivers/media/platform/rcar-vin/rcar-dma.c:494 rvin_set_coeff() error: we previously assumed 'p_set' could be null (see line 489) Signed-off-by:Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Mauro Carvalho Chehab authored
At the error logic, ipc_buf was already asigned to &ctx->ipc_buf_struct, with can't be null, as warned by smatch: drivers/media/platform/sti/delta/delta-ipc.c:223 delta_ipc_open() warn: variable dereferenced before check 'ctx->ipc_buf' (see line 183) So, remove the uneeded check. Signed-off-by: -
Mauro Carvalho Chehab authored
The way the code works, compression will be a valid value (less or equal to 3) on both set_video_mode_foo() calls at the beginning of the while() loop. So, the value for pChoose can't be NULL. Solves those smatch warnings: drivers/media/usb/pwc/pwc-ctrl.c: drivers/media/usb/pwc/pwc-ctrl.c:252 set_video_mode_Timon() warn: variable dereferenced before check 'pChoose' (see line 248) drivers/media/usb/pwc/pwc-ctrl.c: drivers/media/usb/pwc/pwc-ctrl.c:302 set_video_mode_Kiara() warn: variable dereferenced before check 'pChoose' (see line 298) and simplifies the code a little bit. Signed-off-by: -
Mauro Carvalho Chehab authored
There are some macros at cx2341x_update() with seemed to be introduced in order to ensure that lines would be less than 80 columns. Well, the thing is that they make the code harder to be analized, not only by humans, but also for static code analyzers: drivers/media/common/cx2341x.c:1116 cx2341x_update() error: we previously assumed 'old' could be null (see line 1047) So, remove the "force" var, and replace the NEQ macro to a better designed one that makes clearer about what it is doing. While here, also remove the "temporal" var, as it is just another way of doing the same type of check as the new CMP_FIELD() macro already does. Finally, fix coding style at the block code. remove such macros. Signed-off-by: -
Mauro Carvalho Chehab authored
As warned by smatch: drivers/media/i2c/imx214.c:591 imx214_set_format() warn: variable dereferenced before check 'format' (see line 589) It turns that the code at imx214_set_format() has support for being called with the format being NULL. I've no idea why, as it is only called internally with the pointer set, and via subdev API (with should also set it). Also, the entire logic there depends on having format != NULL, so just remove the bogus broken support for a null format. Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Reviewed-by:
Ricardo Ribalda Delgado <ricardo@ribalda.com> Signed-off-by:
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Laurent Pinchart authored
Indentation is odd in several places, especially when printing messages to the kernel log. Fix it to match the usual coding style. Signed-off-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by:
Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by:
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Dafna Hirschfeld authored
for stateless decoder, set the output pixelformat to V4L2_PIX_FMT_FWHT_STATELESS and the pix info to pixfmt_stateless_fwht Signed-off-by:
Dafna Hirschfeld <dafna3@gmail.com> Signed-off-by:
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Dafna Hirschfeld authored
Implement a stateless decoder for the new node. Signed-off-by:
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Dafna Hirschfeld authored
Add stateless decoder instance field to the dev struct and register another node for the statelsess decoder. The stateless API for the node will be implemented in further patches. Signed-off-by:
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Hans Verkuil authored
Add V4L2_PIX_FMT_FWHT_STATELESS to the list of pixelformats that v4l_fill_fmtdesc() understands. Signed-off-by:
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Dafna Hirschfeld authored
Add structs and definitions needed to implement stateless decoder for fwht and add I/P-frames QP controls to the public api. Signed-off-by:
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Dafna Hirschfeld authored
add documentation to V4L2_PIX_FMT_FWHT_STATELESS in pixfmt-compressed.rst Signed-off-by:
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Dafna Hirschfeld authored
add documentation to V4L2_CID_MPEG_VIDEO_FWHT_PARAMS control and its related 'v4l2_ctrl_fwht_params' struct [mchehab+samsung@kernel.org: remove extra blank lines] Signed-off-by:
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Dafna Hirschfeld authored
add documentation to V4L2_CID_FWHT_I/P_FRAME_QP controls in ext-ctrls-codec.rst [mchehab+samsung@kernel.org: remove extra blank lines] Signed-off-by:
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Dafna Hirschfeld authored
Add struct 'vicodec_dev_instance' for the fields in vicodec_dev that have have both decoder and encoder versions. Signed-off-by:
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Dafna Hirschfeld authored
In the stateless decoder the reference buffer is null if the frame is an I-frame (flagged with FWHT_FL_I_FRAME). Make sure not to dereference it in that case. Signed-off-by:
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Dafna Hirschfeld authored
Rename 'v4l2_fwht_default_fmt' to 'v4l2_fwht_find_nth_fmt' and add a function 'v4l2_fwht_validate_fmt' to check if a format info matches the parameters. This function will also be used to validate the stateless params when adding support for stateless codecs. Signed-off-by:
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Dafna Hirschfeld authored
Move the code that validates version dependent header values to a separate function 'validate_by_version' Signed-off-by:
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Dafna Hirschfeld authored
In the decoder, save the inner reference frame in the same format as the capture buffer. The decoder writes directly to the capture buffer and then the capture buffer is copied to the reference buffer. This will simplify the stateless decoder. Signed-off-by:
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Dafna Hirschfeld authored
Add the field 'buf' to fwht_raw_frame to indicate the start of the raw frame buffer. This field will be used to copy the capture buffer to the reference buffer in the next patch. Signed-off-by:
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Dafna Hirschfeld authored
Introduce 'prepare_raw_frame' function that fills the values of a raw frame struct according to the format. Signed-off-by:
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Dafna Hirschfeld authored
Free compressed_frame buffer upon device release. Signed-off-by:
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Dafna Hirschfeld authored
The function 'v4l2_m2m_buf_copy_metadata' should be called even if decoding/encoding ends with status VB2_BUF_STATE_ERROR, so that the metadata is copied from the source buffer to the dest buffer. Signed-off-by:
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Dafna Hirschfeld authored
v4l2_fwht_encode returns either an error code on failure or the size of the compressed frame on success. So change the var assigned to it from 'ret' to 'comp_sz_or_errcode' to clarify that. Signed-off-by:
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Dafna Hirschfeld authored
If one of the controls fails to set, then 'v4l2_ctrl_request_setup' immediately returns with the error code. Signed-off-by:
Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by:
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Dafna Hirschfeld authored
'v4l2_m2m_ctx_release' calls request complete so it should be called before 'v4l2_ctrl_handler_free'. Signed-off-by:
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Hans Verkuil authored
The logic of g_selection was wrong: encoders support crop, decoders support compose, but the code allowed both. Signed-off-by:
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Dafna Hirschfeld authored
The selection api should check only single buffer types because multiplanar types are converted to single in drivers/media/v4l2-core/v4l2-ioctl.c Signed-off-by:
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Hans Verkuil authored
If requests are used when they shouldn't, or not used when they should, then return EBADR (Invalid request descriptor) instead of EACCES. The reason for this change is that EACCES has more to do with permissions (not being the owner of the resource), but in this case the request file descriptor is just wrong for the current mode of the device. Update the documentation accordingly. Signed-off-by:
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Hans Verkuil authored
The cedrus stateless decoder requires the use of request, so indicate this by setting requires_requests to 1. Note that the cedrus driver never checked for this, and as far as I can tell would just crash if an attempt was made to queue a buffer without a request. Signed-off-by:
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Hans Verkuil authored
Stateless codecs require the use of the Request API as opposed of it being optional. So add a bit to indicate this and let vb2 check for this. If an attempt is made to queue a buffer without an associated request, then the EBADR error is returned to userspace. Doing this check in the vb2 core simplifies drivers, since they don't have to check for this, they can just set this flag. Signed-off-by:
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- 20 Mar, 2019 9 commits
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Mauro Carvalho Chehab authored
Checkpatch wants to use 'help' instead of '---help---': WARNING: prefer 'help' over '---help---' for new help texts Let's change it globally at the media subsystem, as otherwise people would keep using the old way. Signed-off-by: -
Sakari Ailus authored
This is not how ACPI tables are written. Add a deprecation note and refer to the proper documentation. Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
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Sakari Ailus authored
Set the entity function for the four CSI-2 receiver sub-devices the driver creates. This avoids a kernel warning from each as well. Signed-off-by:
Bingbu Cao <bingbu.cao@intel.com> Signed-off-by:
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Sakari Ailus authored
The lens drivers had ended up under the video decoder section; add a new one just for them, between the camera sensors and flash drivers. Signed-off-by:
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Sakari Ailus authored
ti-vpe driver parsed the remote endpoints for properties but ignored the local ones. Fix this by parsing the local endpoint properties instead. Signed-off-by:
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Sakari Ailus authored
V4L2 fwnode matching right now still works based on device nodes, not port nodes. Fix this. Signed-off-by:
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Sakari Ailus authored
C-PHY has no clock lanes. Therefore the first data lane is 0 by default. Fixes: edc6d56c ("media: v4l: fwnode: Support parsing of CSI-2 C-PHY endpoints") Signed-off-by:
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Sakari Ailus authored
The lack of defaults provided by the caller to v4l2_fwnode_endpoint_parse() signals the use of the default lane mapping. The default lane mapping must not be used however if the firmmare contains the lane mapping. Disable the default lane mapping in that case, and improve the debug messages telling of the use of the defaults. This was missed previously since the default mapping will only unsed in this case if the bus type is set, and no driver did both while still needing the lane mapping configuration. Fixes: b4357d21 ("media: v4l: fwnode: Support default CSI-2 lane mapping for drivers") Signed-off-by:
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Akinobu Mita authored
Since commit 3d6a8fe2 ("media: ov7670: hook s_power onto v4l2 core"), the device is actually powered off while the video stream is stopped. So now set_format and s_frame_interval could be called while the device is powered off, but these callbacks try to change the register settings at this time. The frame format and framerate will be restored right after power-up, so we can just postpone applying these changes at these callbacks if the device is not powered up. Fixes: 3d6a8fe2 ("media: ov7670: hook s_power onto v4l2 core") Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by:
Akinobu Mita <akinobu.mita@gmail.com> Reviewed-by:
Lubomir Rintel <lkundrak@v3.sk> Tested-by:
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