drivers/amlogic/drm/drm-v0/am_meson_drv.h

/*
 * Copyright (C) 2016 BayLibre, SAS
 * Author: Neil Armstrong <narmstrong@baylibre.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.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __AM_MESON_DRV_H
#define __AM_MESON_DRV_H

#include <linux/platform_device.h>
#include <linux/of.h>
#include <drm/drmP.h>
#ifdef CONFIG_DRM_MESON_USE_ION
#include <ion/ion_priv.h>
#endif

#define MESON_MAX_CRTC		2

/*
 * Amlogic drm private crtc funcs.
 * @loader_protect: protect loader logo crtc's power
 * @enable_vblank: enable crtc vblank irq.
 * @disable_vblank: disable crtc vblank irq.
 */
struct meson_crtc_funcs {
	int (*loader_protect)(struct drm_crtc *crtc, bool on);
	int (*enable_vblank)(struct drm_crtc *crtc);
	void (*disable_vblank)(struct drm_crtc *crtc);
};

struct meson_drm {
	struct device *dev;

	struct drm_device *drm;
	struct drm_crtc *crtc;
	const struct meson_crtc_funcs *crtc_funcs[MESON_MAX_CRTC];
	struct drm_fbdev_cma *fbdev;
	struct drm_fb_helper *fbdev_helper;
	struct drm_gem_object *fbdev_bo;
	struct drm_plane *primary_plane;
	struct drm_plane *cursor_plane;
	struct drm_property_blob *gamma_lut_blob;

#ifdef CONFIG_DRM_MESON_USE_ION
	struct ion_client *gem_client;
#endif
};

static inline int meson_vpu_is_compatible(struct meson_drm *priv,
					  const char *compat)
{
	return of_device_is_compatible(priv->dev->of_node, compat);
}

extern int am_meson_register_crtc_funcs(struct drm_crtc *crtc,
				 const struct meson_crtc_funcs *crtc_funcs);
extern void am_meson_unregister_crtc_funcs(struct drm_crtc *crtc);

#endif /* __AM_MESON_DRV_H */