drivers/amlogic/mailbox/meson_mhu_fifo.h

/*
 * drivers/amlogic/mailbox/meson_mhu_fifo.h
 *
 * Copyright (C) 2017 Amlogic, Inc. All rights reserved.
 *
 * 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.
 *
 */

#ifndef __MESON_MHU_FIFO_H__
#define __MESON_MHU_FIFO_H__

#include <linux/cdev.h>
#include <linux/mailbox_controller.h>
#include <linux/amlogic/meson_mhu_common.h>

#define CHANNEL_FIFO_MAX	6
#define MBOX_MAX		CHANNEL_FIFO_MAX
#define MHUIRQ_MAXNUM		32

#define PAYLOAD_OFFSET(chan)	(0x80 * (chan))
#define CTL_OFFSET(chan)	((chan) * 0x4)

#define IRQ_REV_BIT(mbox)	(1 << ((mbox) * 2))
#define IRQ_SENDACK_BIT(mbox)	(1 << ((mbox) * 2 + 1))

#define IRQ_MASK_OFFSET(x)	(0x00 + ((x) << 2))
#define IRQ_TYPE_OFFSET(x)	(0x10 + ((x) << 2))
#define IRQ_CLR_OFFSET(x)	(0x20 + ((x) << 2))
#define IRQ_STS_OFFSET(x)	(0x30 + ((x) << 2))

/*inclule status 0x4 task id 0x8, ullclt 0x8, completion 0x8*/
#define MBOX_HEAD_SIZE		0x1c
#define MBOX_RESEV_SIZE		0x4

#define MBOX_FIFO_SIZE		0x80
#define MBOX_DATA_SIZE \
	(MBOX_FIFO_SIZE - MBOX_HEAD_SIZE - MBOX_RESEV_SIZE)

/*user space mailbox cmd len define type int*/
#define MBOX_USER_CMD_LEN	4

#define MBOX_USER_MAX_LEN	(MBOX_DATA_SIZE + MBOX_USER_CMD_LEN)
/*u64 taskid*/
#define MBOX_TASKID_LEN		8
/* u64 compete*/
#define MBOX_COMPETE_LEN	8
/* u64 ullctl*/
#define MBOX_ULLCLT_LEN		8

#define REV_MBOX_MASK		0xAA
#endif