linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * OMAP mailbox driver

 *

 * Copyright (C) 2006-2009 Nokia Corporation. All rights reserved.

 * Copyright (C) 2013-2016 Texas Instruments Incorporated - http://www.ti.com

 *

 * Contact: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>

 *          Suman Anna <s-anna@ti.com>

 */

​

#include <linux/interrupt.h>

#include <linux/spinlock.h>

#include <linux/mutex.h>

#include <linux/slab.h>

#include <linux/kfifo.h>

#include <linux/err.h>

#include <linux/module.h>

#include <linux/of_device.h>

#include <linux/platform_device.h>

#include <linux/pm_runtime.h>

#include <linux/omap-mailbox.h>

#include <linux/mailbox_controller.h>

#include <linux/mailbox_client.h>

​

#include "mailbox.h"

​

#define MAILBOX_REVISION        0x000

#define MAILBOX_MESSAGE(m)      (0x040 + 4 * (m))

#define MAILBOX_FIFOSTATUS(m)       (0x080 + 4 * (m))

#define MAILBOX_MSGSTATUS(m)        (0x0c0 + 4 * (m))

​

#define OMAP2_MAILBOX_IRQSTATUS(u)  (0x100 + 8 * (u))

#define OMAP2_MAILBOX_IRQENABLE(u)  (0x104 + 8 * (u))

​

#define OMAP4_MAILBOX_IRQSTATUS(u)  (0x104 + 0x10 * (u))

#define OMAP4_MAILBOX_IRQENABLE(u)  (0x108 + 0x10 * (u))

#define OMAP4_MAILBOX_IRQENABLE_CLR(u)  (0x10c + 0x10 * (u))

​

#define MAILBOX_IRQSTATUS(type, u)  (type ? OMAP4_MAILBOX_IRQSTATUS(u) : \

                        OMAP2_MAILBOX_IRQSTATUS(u))

#define MAILBOX_IRQENABLE(type, u)  (type ? OMAP4_MAILBOX_IRQENABLE(u) : \

                        OMAP2_MAILBOX_IRQENABLE(u))

#define MAILBOX_IRQDISABLE(type, u) (type ? OMAP4_MAILBOX_IRQENABLE_CLR(u) \

                        : OMAP2_MAILBOX_IRQENABLE(u))

​

#define MAILBOX_IRQ_NEWMSG(m)       (1 << (2 * (m)))

#define MAILBOX_IRQ_NOTFULL(m)      (1 << (2 * (m) + 1))

​

/* Interrupt register configuration types */

#define MBOX_INTR_CFG_TYPE1     0

#define MBOX_INTR_CFG_TYPE2     1

​

struct omap_mbox_fifo {

    unsigned long msg;

    unsigned long fifo_stat;

    unsigned long msg_stat;

    unsigned long irqenable;

    unsigned long irqstatus;

    unsigned long irqdisable;

    u32 intr_bit;

};

​