drivers/gpu/drm/rcar-du/rcar_du_group.h

   1 /*
   2  * rcar_du_group.c  --  R-Car Display Unit Planes and CRTCs Group
   3  *
   4  * Copyright (C) 2013-2014 Renesas Electronics Corporation
   5  *
   6  * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
   7  *
   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.
  12  */
  13
  14 #ifndef __RCAR_DU_GROUP_H__
  15 #define __RCAR_DU_GROUP_H__
  16
  17 #include "rcar_du_plane.h"
  18
  19 struct rcar_du_device;
  20
  21 /*
  22  * struct rcar_du_group - CRTCs and planes group
  23  * @dev: the DU device
  24  * @mmio_offset: registers offset in the device memory map
  25  * @index: group index
  26  * @use_count: number of users of the group (rcar_du_group_(get|put))
  27  * @used_crtcs: number of CRTCs currently in use
  28  * @planes: planes handled by the group
  29  */
  30 struct rcar_du_group {
  31         struct rcar_du_device *dev;
  32         unsigned int mmio_offset;
  33         unsigned int index;
  34
  35         unsigned int use_count;
  36         unsigned int used_crtcs;
  37
  38         struct rcar_du_planes planes;
  39 };
  40
  41 u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg);
  42 void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data);
  43
  44 int rcar_du_group_get(struct rcar_du_group *rgrp);
  45 void rcar_du_group_put(struct rcar_du_group *rgrp);
  46 void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start);
  47 void rcar_du_group_restart(struct rcar_du_group *rgrp);
  48 int rcar_du_group_set_routing(struct rcar_du_group *rgrp);
  49
  50 #endif /* __RCAR_DU_GROUP_H__ */