diff options
Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_plane.h')
| -rw-r--r-- | drivers/gpu/drm/rcar-du/rcar_du_plane.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.h b/drivers/gpu/drm/rcar-du/rcar_du_plane.h new file mode 100644 index 00000000000..f94f9ce8499 --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.h @@ -0,0 +1,81 @@ +/* + * rcar_du_plane.h -- R-Car Display Unit Planes + * + * Copyright (C) 2013 Renesas 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 <linux/mutex.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 KMS planes and CRTCs. As + * using KMS planes requires at least one of the CRTCs being enabled, no more + * than 7 KMS planes can be available. We thus create 7 KMS planes and + * 9 software planes (one for each KMS planes and one for each CRTC). + */ + +#define RCAR_DU_NUM_KMS_PLANES 7 +#define RCAR_DU_NUM_HW_PLANES 8 +#define RCAR_DU_NUM_SW_PLANES 9 + +struct rcar_du_plane { + struct rcar_du_group *group; + struct drm_crtc *crtc; + + bool enabled; + + int hwindex; /* 0-based, -1 means unused */ + unsigned int alpha; + unsigned int colorkey; + unsigned int zpos; + + const struct rcar_du_format_info *format; + + unsigned long dma[2]; + unsigned int pitch; + + unsigned int width; + unsigned int height; + + unsigned int src_x; + unsigned int src_y; + unsigned int dst_x; + unsigned int dst_y; +}; + +struct rcar_du_planes { + struct rcar_du_plane planes[RCAR_DU_NUM_SW_PLANES]; + unsigned int free; + struct mutex lock; + + struct drm_property *alpha; + struct drm_property *colorkey; + struct drm_property *zpos; +}; + +int rcar_du_planes_init(struct rcar_du_group *rgrp); +int rcar_du_planes_register(struct rcar_du_group *rgrp); + +void rcar_du_plane_setup(struct rcar_du_plane *plane); +void rcar_du_plane_update_base(struct rcar_du_plane *plane); +void rcar_du_plane_compute_base(struct rcar_du_plane *plane, + struct drm_framebuffer *fb); +int rcar_du_plane_reserve(struct rcar_du_plane *plane, + const struct rcar_du_format_info *format); +void rcar_du_plane_release(struct rcar_du_plane *plane); + +#endif /* __RCAR_DU_PLANE_H__ */ |