diff options
| author | Thierry Reding <treding@nvidia.com> | 2017-12-20 09:39:14 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2017-12-21 14:55:55 +0100 |
| commit | ebae8d07435ae91314f4a28d69b530d09c625815 (patch) | |
| tree | fbe41c4c436502a2f073a3c352d3b14a3886cf15 /drivers/gpu/drm/tegra/dc.h | |
| parent | 4c69ac12e39d3d623686d1c421b05d604e1c6db9 (diff) | |
drm/tegra: dc: Implement legacy blending
This implements alpha blending on legacy display controllers (Tegra20,
Tegra30 and Tegra114). While it's theoretically possible to support the
zpos property to enable userspace to specify the Z-order of each plane
individually, this is not currently supported and the same fixed Z-
order as previously defined is used.
Reverts commit 71835caa00e8 ("drm/tegra: fb: Force alpha formats") since
the opaque formats are now supported.
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Fixes: 7772fdaef939 ("drm/tegra: Support ARGB and ABGR formats")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra/dc.h')
| -rw-r--r-- | drivers/gpu/drm/tegra/dc.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/dc.h b/drivers/gpu/drm/tegra/dc.h index e2831e96ea96..096a81ad6d8d 100644 --- a/drivers/gpu/drm/tegra/dc.h +++ b/drivers/gpu/drm/tegra/dc.h @@ -649,8 +649,20 @@ int tegra_dc_rgb_exit(struct tegra_dc *dc); #define DC_WIN_DV_CONTROL 0x70e #define DC_WIN_BLEND_NOKEY 0x70f +#define BLEND_WEIGHT1(x) (((x) & 0xff) << 16) +#define BLEND_WEIGHT0(x) (((x) & 0xff) << 8) + #define DC_WIN_BLEND_1WIN 0x710 +#define BLEND_CONTROL_FIX (0 << 2) +#define BLEND_CONTROL_ALPHA (1 << 2) +#define BLEND_COLOR_KEY_NONE (0 << 0) +#define BLEND_COLOR_KEY_0 (1 << 0) +#define BLEND_COLOR_KEY_1 (2 << 0) +#define BLEND_COLOR_KEY_BOTH (3 << 0) + #define DC_WIN_BLEND_2WIN_X 0x711 +#define BLEND_CONTROL_DEPENDENT (2 << 2) + #define DC_WIN_BLEND_2WIN_Y 0x712 #define DC_WIN_BLEND_3WIN_XY 0x713 |