| Commit message (Collapse) | Author | Age | Files | Lines |
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Initial implementation of DE2 planes only supported fixed zpos.
Expand implementation with configurable zpos property.
Implementation background:
Channel in DE2 driver represents one DRM plane, whereas pipe is just
mapped channel to known Z position. Pipe 0 will always be at the bottom,
pipe 1 just above pipe 0 and so on. If, for example, channel 1 is mapped
at pipe 0 and channel 0 at pipe 1, whatever is on channel 0 will appear
on top.
Before this commit, channel id was used for addressing channel related
registers (prefixed with SUN8I_MIXER_CHAN_UI_ or SUN8I_MIXER_CHAN_VI_)
and pipe registers (prefixed with SUN8I_MIXER_BLEND_). Additionally,
register SUN8I_MIXER_BLEND_ROUTE, which takes care for mapping channels
to pipes had fixed value. It mapped channel 0 to pipe 0, 1 to 1 and so
on. Consequence of all that was fixed Z order of planes.
With this commit, pipe registers are using zpos property as index and
channel related registers still use channel id as index. Pipe mapping
register is now set dynamically too and pipe enable register is rebuild
every time to make sure only active pipes are enabled.
Testing was done to confirm that there is no issues if bottom plane
contains pixels with alpha value < 0xff and if it doesn't whole screen.
Tested-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180706164732.24166-1-jernej.skrabec@siol.net
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It seems like the mixer can only run properly when clocked at 150MHz. In
order to have something more robust than simply a fire-and-forget
assigned-clocks-rate, let's put that in the code.
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f5f05307972ed05250e8094b302d68b9e7e167f6.1513854122.git-series.maxime.ripard@free-electrons.com
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This commit expands translation of DRM YUV format to HW specific
information.
It doesn't do any functional changes.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-25-jernej.skrabec@siol.net
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Base addresses of channel output CSC (CCSC) depends whether mixer in
question is first or second and if it is second, if supports VEP or not.
This new property will tell which set of base addresses to take.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-23-jernej.skrabec@siol.net
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Scaling is currently supported only for RGB framebuffers
Coefficients and algorithm which coefficients to select are taken
from BSP driver.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-22-jernej.skrabec@siol.net
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No all SoCs support scaling on all channels. For example, V3s support
scaling only on VI channels. Because of that, add additional
configuration bitmask which tells which channel support scaler.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-21-jernej.skrabec@siol.net
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Till now, DE2 driver supported only UI planes. Before we add support for
VI planes, lets split out UI layer specific code from common parts. This
commit does the following:
- renames sun8i_layer.c to sun8i_ui_layer.c
- moves UI channel specific code to sun8i_ui_layer.c
- moves common code from sun8i_layer.c to sun8i_mixer.c
- renames function and structure names so it is apparent where they
belong to
No functional change is made.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-19-jernej.skrabec@siol.net
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Currently only a few RGB formats are supported by the DE2 driver. Add
support for all formats supported by the HW.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-18-jernej.skrabec@siol.net
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Till now, plane selection was hardcoded to first overlay in first UI
channel and layer parameter is unused.
Rename and add parameters to layer functions so they would represent HW
more accurately and start using then.
It turns out that overlays don't fit well in current DRM design, because
they can't be blended together or scaled independetly when they are set
to same channel. Because of that, always use only first overlay in each
channel.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-11-jernej.skrabec@siol.net
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Now that some knowledge of DE2 is gained, rename or add some macros to
make code more readable.
Max channel macro is removed, since it is not used and it is not clear
if it has right value. Structures in BSP driver shows possibility of 5
channels maximum although there is no SoC with such configuration.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-9-jernej.skrabec@siol.net
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Color attribute have same format troughout the whole driver.
Rename macro, add comment with simple explanation and remove redundant
definitions.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-7-jernej.skrabec@siol.net
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Premultiply and color key control registers are already set to zero by
initialization code few lines above. Furthermore, it seems that
colorkeying doesn't really work. It's not used in BSP driver and
experiments with it all failed.
Just remove the code.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-6-jernej.skrabec@siol.net
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Current code sets alpha mode to global alpha mode and global alpha
value to 0xff which is totaly opaque. That is not needed for two
reasons:
- only one plane is active and thus it can be blended only with
background, which is black,
- it will hinder proper blending when more than one plane is supported
Default mode (0) considers pixel alpha value or 0xff if pixel has
no alpha information. Global alpha value is ignored in this case.
Because of that, just remove the code.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-4-jernej.skrabec@siol.net
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Current RGB formats macros are actually not specific to UI planes.
Rename it to something more universal and introduce shift macro.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-3-jernej.skrabec@siol.net
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Format mask is one bit too short. Fix it.
Fixes: 9d75b8c0b999 (drm/sun4i: add support for Allwinner DE2 mixers)
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-2-jernej.skrabec@siol.net
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Allwinner have a new "Display Engine 2.0" in their new SoCs, which comes
with mixers to do graphic processing and feed data to TCON, like the old
backends and frontends.
Add support for the mixer on Allwinner V3s SoC; it's the simplest one.
Currently a lot of functions are still missing -- more investigations
are needed to gain enough information for them.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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