/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/* exynos_drm.h
 *
 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
 * Authors:
 *	Inki Dae <inki.dae@samsung.com>
 *	Joonyoung Shim <jy0922.shim@samsung.com>
 *	Seung-Woo Kim <sw0312.kim@samsung.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 _EXYNOS_DRM_H_
#define _EXYNOS_DRM_H_

#include "drm.h"

#if defined(__cplusplus)
extern "C" {
#endif

/**
 * User-desired buffer creation information structure.
 *
 * @size: user-desired memory allocation size.
 *	- this size value would be page-aligned internally.
 * @flags: user request for setting memory type or cache attributes.
 * @handle: returned a handle to created gem object.
 *	- this handle will be set by gem module of kernel side.
 */
struct drm_exynos_gem_create {
	__u64 size;
	__u32 flags;
	__u32 handle;
};

/**
 * A structure for getting a fake-offset that can be used with mmap.
 *
 * @handle: handle of gem object.
 * @reserved: just padding to be 64-bit aligned.
 * @offset: a fake-offset of gem object.
 */
struct drm_exynos_gem_map {
	__u32 handle;
	__u32 reserved;
	__u64 offset;
};

/**
 * A structure to gem information.
 *
 * @handle: a handle to gem object created.
 * @flags: flag value including memory type and cache attribute and
 *	this value would be set by driver.
 * @size: size to memory region allocated by gem and this size would
 *	be set by driver.
 */
struct drm_exynos_gem_info {
	__u32 handle;
	__u32 flags;
	__u64 size;
};

/**
 * A structure for user connection request of virtual display.
 *
 * @connection: indicate whether doing connetion or not by user.
 * @extensions: if this value is 1 then the vidi driver would need additional
 *	128bytes edid data.
 * @edid: the edid data pointer from user side.
 */
struct drm_exynos_vidi_connection {
	__u32 connection;
	__u32 extensions;
	__u64 edid;
};

/* memory type definitions. */
enum e_drm_exynos_gem_mem_type {
	/* Physically Continuous memory and used as default. */
	EXYNOS_BO_CONTIG	= 0 << 0,
	/* Physically Non-Continuous memory. */
	EXYNOS_BO_NONCONTIG	= 1 << 0,
	/* non-cachable mapping and used as default. */
	EXYNOS_BO_NONCACHABLE	= 0 << 1,
	/* cachable mapping. */
	EXYNOS_BO_CACHABLE	= 1 << 1,
	/* write-combine mapping. */
	EXYNOS_BO_WC		= 1 << 2,
	EXYNOS_BO_MASK		= EXYNOS_BO_NONCONTIG | EXYNOS_BO_CACHABLE |
					EXYNOS_BO_WC
};

struct drm_exynos_g2d_get_ver {
	__u32	major;
	__u32	minor;
};

struct drm_exynos_g2d_cmd {
	__u32	offset;
	__u32	data;
};

enum drm_exynos_g2d_buf_type {
	G2D_BUF_USERPTR = 1 << 31,
};

enum drm_exynos_g2d_event_type {
	G2D_EVENT_NOT,
	G2D_EVENT_NONSTOP,
	G2D_EVENT_STOP,		/* not yet */
};

struct drm_exynos_g2d_userptr {
	unsigned long userptr;
	unsigned long size;
};

struct drm_exynos_g2d_set_cmdlist {
	__u64					cmd;
	__u64					cmd_buf;
	__u32					cmd_nr;
	__u32					cmd_buf_nr;

	/* for g2d event */
	__u64					event_type;
	__u64					user_data;
};

struct drm_exynos_g2d_exec {
	__u64					async;
};

#define DRM_EXYNOS_GEM_CREATE		0x00
#define DRM_EXYNOS_GEM_MAP		0x01
/* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */
#define DRM_EXYNOS_GEM_GET		0x04
#define DRM_EXYNOS_VIDI_CONNECTION	0x07

/* G2D */
#define DRM_EXYNOS_G2D_GET_VER		0x20
#define DRM_EXYNOS_G2D_SET_CMDLIST	0x21
#define DRM_EXYNOS_G2D_EXEC		0x22

/* Reserved 0x30 ~ 0x33 for obsolete Exynos IPP ioctls */

#define DRM_IOCTL_EXYNOS_GEM_CREATE		DRM_IOWR(DRM_COMMAND_BASE + \
		DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
#define DRM_IOCTL_EXYNOS_GEM_MAP		DRM_IOWR(DRM_COMMAND_BASE + \
		DRM_EXYNOS_GEM_MAP, struct drm_exynos_gem_map)
#define DRM_IOCTL_EXYNOS_GEM_GET	DRM_IOWR(DRM_COMMAND_BASE + \
		DRM_EXYNOS_GEM_GET,	struct drm_exynos_gem_info)

#define DRM_IOCTL_EXYNOS_VIDI_CONNECTION	DRM_IOWR(DRM_COMMAND_BASE + \
		DRM_EXYNOS_VIDI_CONNECTION, struct drm_exynos_vidi_connection)

#define DRM_IOCTL_EXYNOS_G2D_GET_VER		DRM_IOWR(DRM_COMMAND_BASE + \
		DRM_EXYNOS_G2D_GET_VER, struct drm_exynos_g2d_get_ver)
#define DRM_IOCTL_EXYNOS_G2D_SET_CMDLIST	DRM_IOWR(DRM_COMMAND_BASE + \
		DRM_EXYNOS_G2D_SET_CMDLIST, struct drm_exynos_g2d_set_cmdlist)
#define DRM_IOCTL_EXYNOS_G2D_EXEC		DRM_IOWR(DRM_COMMAND_BASE + \
		DRM_EXYNOS_G2D_EXEC, struct drm_exynos_g2d_exec)

/* EXYNOS specific events */
#define DRM_EXYNOS_G2D_EVENT		0x80000000

struct drm_exynos_g2d_event {
	struct drm_event	base;
	__u64			user_data;
	__u32			tv_sec;
	__u32			tv_usec;
	__u32			cmdlist_no;
	__u32			reserved;
};

#if defined(__cplusplus)
}
#endif

#endif /* _EXYNOS_DRM_H_ */