linux/include/drm/drm_writeback.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * (C) COPYRIGHT 2016 ARM Limited. All rights reserved.
 * Author: Brian Starkey <[email protected]>
 *
 * This program is free software and is provided to you under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation, and any use by you of this program is subject to the terms
 * of such GNU licence.
 */

#ifndef __DRM_WRITEBACK_H__
#define __DRM_WRITEBACK_H__
#include <drm/drm_connector.h>
#include <drm/drm_encoder.h>
#include <linux/workqueue.h>

/**
 * struct drm_writeback_connector - DRM writeback connector
 */
struct drm_writeback_connector { … };

/**
 * struct drm_writeback_job - DRM writeback job
 */
struct drm_writeback_job { … };

static inline struct drm_writeback_connector *
drm_connector_to_writeback(struct drm_connector *connector)
{ … }

int drm_writeback_connector_init(struct drm_device *dev,
				 struct drm_writeback_connector *wb_connector,
				 const struct drm_connector_funcs *con_funcs,
				 const struct drm_encoder_helper_funcs *enc_helper_funcs,
				 const u32 *formats, int n_formats,
				 u32 possible_crtcs);

int drm_writeback_connector_init_with_encoder(struct drm_device *dev,
				struct drm_writeback_connector *wb_connector,
				struct drm_encoder *enc,
				const struct drm_connector_funcs *con_funcs, const u32 *formats,
				int n_formats);

int drm_writeback_set_fb(struct drm_connector_state *conn_state,
			 struct drm_framebuffer *fb);

int drm_writeback_prepare_job(struct drm_writeback_job *job);

void drm_writeback_queue_job(struct drm_writeback_connector *wb_connector,
			     struct drm_connector_state *conn_state);

void drm_writeback_cleanup_job(struct drm_writeback_job *job);

void
drm_writeback_signal_completion(struct drm_writeback_connector *wb_connector,
				int status);

struct dma_fence *
drm_writeback_get_out_fence(struct drm_writeback_connector *wb_connector);
#endif