/* SPDX-License-Identifier: GPL-2.0+ */ /* * R-Car Display Unit CRTCs * * Copyright (C) 2013-2015 Renesas Electronics Corporation * * Contact: Laurent Pinchart ([email protected]) */ #ifndef __RCAR_DU_CRTC_H__ #define __RCAR_DU_CRTC_H__ #include <linux/mutex.h> #include <linux/spinlock.h> #include <linux/wait.h> #include <drm/drm_crtc.h> #include <drm/drm_writeback.h> #include <media/vsp1.h> struct rcar_du_group; struct rcar_du_vsp; /** * struct rcar_du_crtc - the CRTC, representing a DU superposition processor * @crtc: base DRM CRTC * @dev: the DU device * @clock: the CRTC functional clock * @extclock: external pixel dot clock (optional) * @mmio_offset: offset of the CRTC registers in the DU MMIO block * @index: CRTC hardware index * @initialized: whether the CRTC has been initialized and clocks enabled * @dsysr: cached value of the DSYSR register * @vblank_enable: whether vblank events are enabled on this CRTC * @event: event to post when the pending page flip completes * @flip_wait: wait queue used to signal page flip completion * @vblank_lock: protects vblank_wait and vblank_count * @vblank_wait: wait queue used to signal vertical blanking * @vblank_count: number of vertical blanking interrupts to wait for * @group: CRTC group this CRTC belongs to * @cmm: CMM associated with this CRTC * @vsp: VSP feeding video to this CRTC * @vsp_pipe: index of the VSP pipeline feeding video to this CRTC * @writeback: the writeback connector */ struct rcar_du_crtc { … }; #define to_rcar_crtc(c) … #define wb_to_rcar_crtc(c) … /** * struct rcar_du_crtc_state - Driver-specific CRTC state * @state: base DRM CRTC state * @crc: CRC computation configuration * @outputs: bitmask of the outputs (enum rcar_du_output) driven by this CRTC */ struct rcar_du_crtc_state { … }; #define to_rcar_crtc_state(s) … int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex, unsigned int hwindex); void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc); void rcar_du_crtc_dsysr_clr_set(struct rcar_du_crtc *rcrtc, u32 clr, u32 set); #endif /* __RCAR_DU_CRTC_H__ */
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