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 <linux/mutex.h> 18 19 #include "rcar_du_plane.h" 20 21 struct rcar_du_device; 22 23 /* 24 * struct rcar_du_group - CRTCs and planes group 25 * @dev: the DU device 26 * @mmio_offset: registers offset in the device memory map 27 * @index: group index 28 * @use_count: number of users of the group (rcar_du_group_(get|put)) 29 * @used_crtcs: number of CRTCs currently in use 30 * @lock: protects the DPTSR register 31 * @planes: planes handled by the group 32 */ 33 struct rcar_du_group { 34 struct rcar_du_device *dev; 35 unsigned int mmio_offset; 36 unsigned int index; 37 38 unsigned int use_count; 39 unsigned int used_crtcs; 40 41 struct mutex lock; 42 43 struct rcar_du_planes planes; 44 }; 45 46 u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg); 47 void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data); 48 49 int rcar_du_group_get(struct rcar_du_group *rgrp); 50 void rcar_du_group_put(struct rcar_du_group *rgrp); 51 void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start); 52 void rcar_du_group_restart(struct rcar_du_group *rgrp); 53 int rcar_du_group_set_routing(struct rcar_du_group *rgrp); 54 55 #endif /* __RCAR_DU_GROUP_H__ */ 56