2 * rcar_du_plane.h -- R-Car Display Unit Planes
4 * Copyright (C) 2013 Renesas Corporation
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
14 #ifndef __RCAR_DU_PLANE_H__
15 #define __RCAR_DU_PLANE_H__
18 struct drm_framebuffer;
19 struct rcar_du_device;
20 struct rcar_du_format_info;
22 /* The RCAR DU has 8 hardware planes, shared between KMS planes and CRTCs. As
23 * using KMS planes requires at least one of the CRTCs being enabled, no more
24 * than 7 KMS planes can be available. We thus create 7 KMS planes and
25 * 9 software planes (one for each KMS planes and one for each CRTC).
28 #define RCAR_DU_NUM_KMS_PLANES 7
29 #define RCAR_DU_NUM_HW_PLANES 8
30 #define RCAR_DU_NUM_SW_PLANES 9
32 struct rcar_du_plane {
33 struct rcar_du_device *dev;
34 struct drm_crtc *crtc;
38 int hwindex; /* 0-based, -1 means unused */
40 unsigned int colorkey;
43 const struct rcar_du_format_info *format;
57 int rcar_du_plane_init(struct rcar_du_device *rcdu);
58 int rcar_du_plane_register(struct rcar_du_device *rcdu);
59 void rcar_du_plane_setup(struct rcar_du_plane *plane);
60 void rcar_du_plane_update_base(struct rcar_du_plane *plane);
61 void rcar_du_plane_compute_base(struct rcar_du_plane *plane,
62 struct drm_framebuffer *fb);
63 int rcar_du_plane_reserve(struct rcar_du_plane *plane,
64 const struct rcar_du_format_info *format);
65 void rcar_du_plane_release(struct rcar_du_plane *plane);
67 #endif /* __RCAR_DU_PLANE_H__ */