92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/*
|
|
* rcar_du_crtc.h -- R-Car Display Unit CRTCs
|
|
*
|
|
* Copyright (C) 2013-2015 Renesas Electronics Corporation
|
|
*
|
|
* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef __RCAR_DU_CRTC_H__
|
|
#define __RCAR_DU_CRTC_H__
|
|
|
|
#include <linux/mutex.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/wait.h>
|
|
|
|
#include <drm/drmP.h>
|
|
#include <drm/drm_crtc.h>
|
|
|
|
struct rcar_du_group;
|
|
struct rcar_du_vsp;
|
|
|
|
/**
|
|
* struct rcar_du_crtc - the CRTC, representing a DU superposition processor
|
|
* @crtc: base DRM CRTC
|
|
* @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 software and hardware index
|
|
* @initialized: whether the CRTC has been initialized and clocks enabled
|
|
* @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
|
|
* @outputs: bitmask of the outputs (enum rcar_du_output) driven by this CRTC
|
|
* @group: CRTC group this CRTC belongs to
|
|
* @vsp: VSP feeding video to this CRTC
|
|
* @vsp_pipe: index of the VSP pipeline feeding video to this CRTC
|
|
*/
|
|
struct rcar_du_crtc {
|
|
struct drm_crtc crtc;
|
|
|
|
struct clk *clock;
|
|
struct clk *extclock;
|
|
unsigned int mmio_offset;
|
|
unsigned int index;
|
|
bool initialized;
|
|
|
|
bool vblank_enable;
|
|
struct drm_pending_vblank_event *event;
|
|
wait_queue_head_t flip_wait;
|
|
|
|
spinlock_t vblank_lock;
|
|
wait_queue_head_t vblank_wait;
|
|
unsigned int vblank_count;
|
|
|
|
unsigned int outputs;
|
|
|
|
struct rcar_du_group *group;
|
|
struct rcar_du_vsp *vsp;
|
|
unsigned int vsp_pipe;
|
|
};
|
|
|
|
#define to_rcar_crtc(c) container_of(c, struct rcar_du_crtc, crtc)
|
|
|
|
enum rcar_du_output {
|
|
RCAR_DU_OUTPUT_DPAD0,
|
|
RCAR_DU_OUTPUT_DPAD1,
|
|
RCAR_DU_OUTPUT_LVDS0,
|
|
RCAR_DU_OUTPUT_LVDS1,
|
|
RCAR_DU_OUTPUT_HDMI0,
|
|
RCAR_DU_OUTPUT_HDMI1,
|
|
RCAR_DU_OUTPUT_TCON,
|
|
RCAR_DU_OUTPUT_MAX,
|
|
};
|
|
|
|
int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int index);
|
|
void rcar_du_crtc_suspend(struct rcar_du_crtc *rcrtc);
|
|
void rcar_du_crtc_resume(struct rcar_du_crtc *rcrtc);
|
|
|
|
void rcar_du_crtc_route_output(struct drm_crtc *crtc,
|
|
enum rcar_du_output output);
|
|
void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc);
|
|
|
|
#endif /* __RCAR_DU_CRTC_H__ */
|