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 21struct 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 * @num_crtcs: number of CRTCs in this group (1 or 2) 29 * @use_count: number of users of the group (rcar_du_group_(get|put)) 30 * @used_crtcs: number of CRTCs currently in use 31 * @lock: protects the dptsr_planes field and the DPTSR register 32 * @dptsr_planes: bitmask of planes driven by dot-clock and timing generator 1 33 * @num_planes: number of planes in the group 34 * @planes: planes handled by the group 35 */ 36struct rcar_du_group { 37 struct rcar_du_device *dev; 38 unsigned int mmio_offset; 39 unsigned int index; 40 41 unsigned int num_crtcs; 42 unsigned int use_count; 43 unsigned int used_crtcs; 44 45 struct mutex lock; 46 unsigned int dptsr_planes; 47 48 unsigned int num_planes; 49 struct rcar_du_plane planes[RCAR_DU_NUM_KMS_PLANES]; 50}; 51 52u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg); 53void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data); 54 55int rcar_du_group_get(struct rcar_du_group *rgrp); 56void rcar_du_group_put(struct rcar_du_group *rgrp); 57void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start); 58void rcar_du_group_restart(struct rcar_du_group *rgrp); 59int rcar_du_group_set_routing(struct rcar_du_group *rgrp); 60 61#endif /* __RCAR_DU_GROUP_H__ */ 62