kernel/drivers/media/platform/vimc/vimc-common.c, branch linux-5.1.y

media: vimc: Add vimc-streamer for stream control

2019-02-07T17:23:09Z

Add a linear pipeline logic for the stream control. It's created by walking backwards on the entity graph. When the stream starts it will simply loop through the pipeline calling the respective process_frame function of each entity. Fixes: f2fe89061d797 ("vimc: Virtual Media Controller core, capture and sensor") Cc: stable@vger.kernel.org # for v4.20 Signed-off-by: Lucas A. M. Magalhães Acked-by: Helen Koike Signed-off-by: Hans Verkuil [hverkuil-cisco@xs4all.nl: fixed small space-after-tab issue in the patch] Signed-off-by: Mauro Carvalho Chehab

media: vimc: fix start stream when link is disabled

2018-12-07T18:08:41Z

If link is disabled, media_entity_remote_pad returns NULL, causing a NULL pointer deference. Ignore links that are not enabled instead. Signed-off-by: Helen Koike Signed-off-by: Mauro Carvalho Chehab

media: use strscpy() instead of strlcpy()

2018-09-11T17:32:17Z

The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL terminated strings. Signed-off-by: Mauro Carvalho Chehab Reviewed-by: Kees Cook Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: vimc: fix control event handling

2018-02-26T14:31:11Z

The sensor subdev didn't handle control events. Add support for this. Found with v4l2-compliance. Signed-off-by: Hans Verkuil Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

[media] vimc: sca: Add scaler

2017-06-23T12:15:16Z

Implement scaler and integrated with the core Signed-off-by: Helen Koike Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] vimc: Subdevices as modules

2017-06-23T12:12:07Z

Change the core structure for adding subdevices in the topology. Instead of calling the specific create function for each subdevice, inject a child platform_device with the driver's name. Each type of node in the topology (sensor, capture, debayer, scaler) will register a platform_driver with the corresponding name through the component subsystem. Implementing a new subdevice type doesn't require vimc-core to be altered. This facilitates future implementation of dynamic entities, where hotpluging an entity in the topology is just a matter of registering/unregistering a platform_device in the system. It also facilitates other implementations of different nodes without touching the core code and remove the need of a header file for each type of node. Signed-off-by: Helen Koike Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] vimc: sen: Support several image formats

2017-06-23T12:07:15Z

Allow user space to change the image format as the frame size, the media bus pixel format, colorspace, quantization, field YCbCr encoding and the transfer function Signed-off-by: Helen Koike Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] vimc: common: Add vimc_link_validate

2017-06-23T12:05:38Z

All links will be checked in the same way. Adding a helper function for that Signed-off-by: Helen Koike Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] vimc: common: Add vimc_pipeline_s_stream helper

2017-06-23T12:03:37Z

Move the vimc_cap_pipeline_s_stream from the vimc-cap.c to vimc-common.c as this core will be reused by other subdevices to activate the stream in their directly connected nodes Signed-off-by: Helen Koike Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] vimc: common: Add vimc_ent_sd_* helper

2017-06-23T12:02:53Z

As all the subdevices in the topology will be initialized in the same way, to avoid code repetition the vimc_ent_sd_{register, unregister} helper functions were created Signed-off-by: Helen Koike Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab