/*
 * This software program is licensed subject to the GNU General Public License
 * (GPL).Version 2,June 1991, available at http://www.fsf.org/copyleft/gpl.html

 * (C) Copyright 2010 Marvell International Ltd.
 * All Rights Reserved
 */

#ifndef __UIO_VMETA_H
#define __UIO_VMETA_H

typedef unsigned int vmeta_instance_status;

struct _id_instance {
	vmeta_instance_status status;
	int height;
	int width;
	int frame_rate;
	pid_t pid;
	unsigned int pt; /* pthread_t */
};

#define MAX_VMETA_INSTANCE 32

enum _VMETA_LOCK_FLAG {
	VMETA_LOCK_OFF = 0,
	VMETA_LOCK_ON,
	VMETA_LOCK_FORCE_INIT
};

/* This struct should be aligned with user space API */
struct _kernel_share {
	int ref_count;
	enum _VMETA_LOCK_FLAG lock_flag;
	int active_user_id;
	struct _id_instance user_id_list[MAX_VMETA_INSTANCE];
};

#ifndef __KERNEL__
/*
 * Needed for userspace
 */
typedef enum _VMETA_LOCK_FLAG VMETA_LOCK_FLAG;
typedef struct _id_instance id_instance;
typedef struct _kernel_share kernel_share;
#endif

struct vmeta_lock {
	unsigned long timeout;
	unsigned int user_id;
};

struct vmeta_info {
	uint32_t	revision;
	struct {
		uint32_t	phys;
		uint32_t	size;
	} map[2];
};

struct vmeta_mmap {
	uint64_t	addr;
	uint32_t	size;
};

struct vmeta_dmabuf_import {
	uint64_t	phys;
	uint32_t	size;
	int32_t 	fd;
	int32_t 	id;
};

#define VMETA_STATUS_BIT_USED		0
#define VMETA_STATUS_BIT_REGISTED	1
#define VMETA_STATUS_USED		BIT(0)
#define VMETA_STATUS_REGISTERED		BIT(1)

#define IOP_MAGIC	('v')

#define VMETA_CMD_POWER_ON		_IO(IOP_MAGIC, 0)
#define VMETA_CMD_POWER_OFF		_IO(IOP_MAGIC, 1)
#define VMETA_CMD_CLK_ON		_IO(IOP_MAGIC, 2)
#define VMETA_CMD_CLK_OFF		_IO(IOP_MAGIC, 3)
#define VMETA_CMD_CLK_SWITCH		_IO(IOP_MAGIC, 4)
#define VMETA_CMD_LOCK			_IO(IOP_MAGIC, 5)
#define VMETA_CMD_UNLOCK		_IO(IOP_MAGIC, 6)
#define VMETA_CMD_PRIV_LOCK		_IO(IOP_MAGIC, 7)
#define VMETA_CMD_PRIV_UNLOCK		_IO(IOP_MAGIC, 8)
#define VMETA_CMD_SUSPEND_CHECK		_IOR(IOP_MAGIC, 9, int)
#define VMETA_CMD_SUSPEND_READY		_IO(IOP_MAGIC, 10)
#define VMETA_CMD_SUSPEND_SET		_IO(IOP_MAGIC, 11)
#define VMETA_CMD_SUSPEND_UNSET		_IO(IOP_MAGIC, 12)
#define VMETA_CMD_GET_USER_ID		_IOR(IOP_MAGIC, 13, unsigned)
#define VMETA_CMD_FREE_USER_ID		_IO(IOP_MAGIC, 14)
#define VMETA_CMD_REGISTER_USER_ID	_IO(IOP_MAGIC, 15)
#define VMETA_CMD_UNREGISTER_USER_ID	_IO(IOP_MAGIC, 16)
#define VMETA_CMD_LOCK_USER_ID		_IOW(IOP_MAGIC, 17, struct vmeta_lock)
#define VMETA_CMD_UNLOCK_USER_ID	_IO(IOP_MAGIC, 18)
#define VMETA_CMD_FORCE_INI		_IO(IOP_MAGIC, 19)
#define VMETA_CMD_GET_USER_NUM		_IOR(IOP_MAGIC, 20, unsigned)
#define VMETA_CMD_GET_INFO		_IOR(IOP_MAGIC, 21, struct vmeta_info)
#define VMETA_CMD_MAP_SW_CONTEXT	_IOWR(IOP_MAGIC, 22, struct vmeta_mmap)
#define VMETA_CMD_DMABUF_IMPORT 	_IOWR(IOP_MAGIC, 23, struct vmeta_dmabuf_import)
#define VMETA_CMD_DMABUF_RELEASE	_IO(IOP_MAGIC, 24)

#endif /* __UIO_VMETA_H */