Currently drm-layer supports HDCP1.4 using connector property:
Content Protection. This property if available for a platform, can be
read and set for requesting content-protection.
Also, the patch series [1] adds HDCP2.2 support in drm, and patch [2]
adds support to send udev events for change in connector properties,
made by the kernel.
This patch adds these HDCP connector properties in weston, and exposes
the content-protection support to the client for drm-backend.
It adds the enums to represent 'Content Protection' and 'Content Type'
connector properties exposed by drm layer. It adds a member
'protection' in drm_output_state, to store the desired protection
from the weston_output in the drm-backend output-repaint cycle. This
is then used to write the HDCP connector properties for the drm_heads
attached to the drm_output.
The kernel sends uevents to the user-space for any change made by it
in the "Content Protection" connector property. No event is sent in
case of change in the property made by the user-space.
It means, when there is a change of the property value from "DESIRED"
to "ENABLE" i.e. successful authentication by the kernel, a uevent
will be generated, but in case of userspace requesting for disabling
the protection by writing "UNDESIRED" into the property, no uevent
will be generated.
This patch also adds support for handling new udev events for HDCP
connector property changes. Any such change, triggers change in the
weston_head's current_protection.
[1] https://patchwork.freedesktop.org/series/57233/#rev7
[2] https://patchwork.freedesktop.org/patch/303903/?series=57233&rev=7
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Introduce a new private header file that only internal backends are
allowed to use. Starts by migrating functions that operate on the
'struct weston_head'.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Introduce a new private header file that only internal parts of the
library are allowed to use and shouldn't be exposed in the public header
of libweston.
Start by adding by adding functions that operate on the 'weston_buffer*'.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
drm_assign_planes() is called to separate views out and decide what will
be taken out for plane composition and what will be left for the
renderer to compose.
It calls drm_output_propose_state() in order to find a good
configuration, which itself has a number of helpers that it calls. Break
these out into a separate file.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Most of the state helpers (create, destroy, duplicate, etc) state, are
relatively straightforward and can live in a separate file.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Create a new file which handles most of the actual KMS API use. This
covers the property handling (in which we map between KMS properties and
our internal representations), as well as actually applying state
through atomic modesetting or the legacy SetCrtc/PageFlip/DPMS APIs.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Create a new file for the DRM backend's handling of output modes, e.g.
resolution, aspect ratio, preferred mode selection, EDID parsing.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Create a new header called drm-internal.h, and move many of drm.c's
declarations and helpers to it.
This will allow us to split the DRM backend into multiple files.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Ankit Nautiyal
Marius Vlad
Stefan Agner
Daniel Stone