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103 lines
2.9 KiB
103 lines
2.9 KiB
/* SPDX-License-Identifier: GPL-2.0+ */ |
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/* |
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* rcar_du_crtc.h -- R-Car Display Unit CRTCs |
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* |
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* Copyright (C) 2013-2015 Renesas Electronics Corporation |
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* |
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* Contact: Laurent Pinchart ([email protected]) |
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*/ |
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#ifndef __RCAR_DU_CRTC_H__ |
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#define __RCAR_DU_CRTC_H__ |
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#include <linux/mutex.h> |
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#include <linux/spinlock.h> |
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#include <linux/wait.h> |
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#include <drm/drm_crtc.h> |
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#include <drm/drm_writeback.h> |
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#include <media/vsp1.h> |
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struct rcar_du_group; |
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struct rcar_du_vsp; |
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/** |
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* struct rcar_du_crtc - the CRTC, representing a DU superposition processor |
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* @crtc: base DRM CRTC |
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* @dev: the DU device |
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* @clock: the CRTC functional clock |
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* @extclock: external pixel dot clock (optional) |
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* @mmio_offset: offset of the CRTC registers in the DU MMIO block |
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* @index: CRTC hardware index |
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* @initialized: whether the CRTC has been initialized and clocks enabled |
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* @dsysr: cached value of the DSYSR register |
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* @vblank_enable: whether vblank events are enabled on this CRTC |
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* @event: event to post when the pending page flip completes |
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* @flip_wait: wait queue used to signal page flip completion |
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* @vblank_lock: protects vblank_wait and vblank_count |
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* @vblank_wait: wait queue used to signal vertical blanking |
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* @vblank_count: number of vertical blanking interrupts to wait for |
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* @group: CRTC group this CRTC belongs to |
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* @cmm: CMM associated with this CRTC |
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* @vsp: VSP feeding video to this CRTC |
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* @vsp_pipe: index of the VSP pipeline feeding video to this CRTC |
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* @writeback: the writeback connector |
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*/ |
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struct rcar_du_crtc { |
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struct drm_crtc crtc; |
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struct rcar_du_device *dev; |
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struct clk *clock; |
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struct clk *extclock; |
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unsigned int mmio_offset; |
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unsigned int index; |
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bool initialized; |
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u32 dsysr; |
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bool vblank_enable; |
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struct drm_pending_vblank_event *event; |
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wait_queue_head_t flip_wait; |
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spinlock_t vblank_lock; |
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wait_queue_head_t vblank_wait; |
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unsigned int vblank_count; |
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struct rcar_du_group *group; |
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struct platform_device *cmm; |
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struct rcar_du_vsp *vsp; |
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unsigned int vsp_pipe; |
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const char *const *sources; |
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unsigned int sources_count; |
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struct drm_writeback_connector writeback; |
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}; |
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#define to_rcar_crtc(c) container_of(c, struct rcar_du_crtc, crtc) |
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#define wb_to_rcar_crtc(c) container_of(c, struct rcar_du_crtc, writeback) |
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/** |
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* struct rcar_du_crtc_state - Driver-specific CRTC state |
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* @state: base DRM CRTC state |
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* @crc: CRC computation configuration |
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* @outputs: bitmask of the outputs (enum rcar_du_output) driven by this CRTC |
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*/ |
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struct rcar_du_crtc_state { |
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struct drm_crtc_state state; |
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struct vsp1_du_crc_config crc; |
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unsigned int outputs; |
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}; |
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#define to_rcar_crtc_state(s) container_of(s, struct rcar_du_crtc_state, state) |
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int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex, |
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unsigned int hwindex); |
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void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc); |
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void rcar_du_crtc_dsysr_clr_set(struct rcar_du_crtc *rcrtc, u32 clr, u32 set); |
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#endif /* __RCAR_DU_CRTC_H__ */
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