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/*

 *  linux/include/linux/serial_8250.h

 *

 *  Copyright (C) 2004 Russell King

 *

 * 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 _LINUX_SERIAL_8250_H

#define _LINUX_SERIAL_8250_H

#include <linux/serial_core.h>

#include <linux/platform_device.h>

/*

 * This is the platform device platform_data structure

 */

struct plat_serial8250_port {

        unsigned long   iobase;         /* io base address */

        void __iomem    *membase;       /* ioremap cookie or NULL */

        resource_size_t mapbase;        /* resource base */

        unsigned int    irq;            /* interrupt number */

        unsigned int    uartclk;        /* UART clock rate */

        unsigned char   regshift;       /* register shift */

        unsigned char   iotype;         /* UPIO_* */

        unsigned char   hub6;

        upf_t           flags;          /* UPF_* flags */

};

/*

 * Allocate 8250 platform device IDs.  Nothing is implied by

 * the numbering here, except for the legacy entry being -1.

 */

enum {

        PLAT8250_DEV_LEGACY = -1,

        PLAT8250_DEV_PLATFORM,

        PLAT8250_DEV_PLATFORM1,

        PLAT8250_DEV_PLATFORM2,

        PLAT8250_DEV_FOURPORT,

        PLAT8250_DEV_ACCENT,

        PLAT8250_DEV_BOCA,

        PLAT8250_DEV_EXAR_ST16C554,

        PLAT8250_DEV_HUB6,

        PLAT8250_DEV_MCA,

        PLAT8250_DEV_AU1X00,

};

/*

 * This should be used by drivers which want to register

 * their own 8250 ports without registering their own

 * platform device.  Using these will make your driver

 * dependent on the 8250 driver.

 */

struct uart_port;

int serial8250_register_port(struct uart_port *);

void serial8250_unregister_port(int line);

void serial8250_suspend_port(int line);

void serial8250_resume_port(int line);

extern int early_serial_setup(struct uart_port *port);

extern int serial8250_find_port(struct uart_port *p);

extern int serial8250_find_port_for_earlycon(void);

extern int setup_early_serial8250_console(char *cmdline);

#endif