diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/rcar-du/rcar_du_plane.h')
-rw-r--r-- | kernel/drivers/gpu/drm/rcar-du/rcar_du_plane.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/rcar-du/rcar_du_plane.h b/kernel/drivers/gpu/drm/rcar-du/rcar_du_plane.h new file mode 100644 index 000000000..abff0ebeb --- /dev/null +++ b/kernel/drivers/gpu/drm/rcar-du/rcar_du_plane.h @@ -0,0 +1,70 @@ +/* + * rcar_du_plane.h -- R-Car Display Unit Planes + * + * Copyright (C) 2013-2014 Renesas Electronics Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __RCAR_DU_PLANE_H__ +#define __RCAR_DU_PLANE_H__ + +#include <drm/drmP.h> +#include <drm/drm_crtc.h> + +struct rcar_du_format_info; +struct rcar_du_group; + +/* The RCAR DU has 8 hardware planes, shared between primary and overlay planes. + * As using overlay planes requires at least one of the CRTCs being enabled, no + * more than 7 overlay planes can be available. We thus create 1 primary plane + * per CRTC and 7 overlay planes, for a total of up to 9 KMS planes. + */ +#define RCAR_DU_NUM_KMS_PLANES 9 +#define RCAR_DU_NUM_HW_PLANES 8 + +struct rcar_du_plane { + struct drm_plane plane; + struct rcar_du_group *group; +}; + +static inline struct rcar_du_plane *to_rcar_plane(struct drm_plane *plane) +{ + return container_of(plane, struct rcar_du_plane, plane); +} + +struct rcar_du_planes { + struct rcar_du_plane planes[RCAR_DU_NUM_KMS_PLANES]; + + struct drm_property *alpha; + struct drm_property *colorkey; + struct drm_property *zpos; +}; + +struct rcar_du_plane_state { + struct drm_plane_state state; + + const struct rcar_du_format_info *format; + int hwindex; /* 0-based, -1 means unused */ + + unsigned int alpha; + unsigned int colorkey; + unsigned int zpos; +}; + +static inline struct rcar_du_plane_state * +to_rcar_du_plane_state(struct drm_plane_state *state) +{ + return container_of(state, struct rcar_du_plane_state, state); +} + +int rcar_du_planes_init(struct rcar_du_group *rgrp); + +void rcar_du_plane_setup(struct rcar_du_plane *plane); + +#endif /* __RCAR_DU_PLANE_H__ */ |