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path: root/drivers/gpu/drm/rcar-du/rcar_du_plane.h
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Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_plane.h')
-rw-r--r--drivers/gpu/drm/rcar-du/rcar_du_plane.h67
1 files changed, 67 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 000000000000..5397dba2fe57
--- /dev/null
+++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.h
@@ -0,0 +1,67 @@
+/*
+ * 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__
+
+struct drm_crtc;
+struct drm_framebuffer;
+struct rcar_du_device;
+struct rcar_du_format_info;
+
+/* 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_device *dev;
+ 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;
+};
+
+int rcar_du_plane_init(struct rcar_du_device *rcdu);
+int rcar_du_plane_register(struct rcar_du_device *rcdu);
+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__ */