2 * linux/include/linux/serial_8250.h
4 * Copyright (C) 2004 Russell King
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 #ifndef _LINUX_SERIAL_8250_H
12 #define _LINUX_SERIAL_8250_H
14 #include <linux/serial_core.h>
15 #include <linux/platform_device.h>
18 * This is the platform device platform_data structure
20 struct plat_serial8250_port
{
21 unsigned long iobase
; /* io base address */
22 void __iomem
*membase
; /* ioremap cookie or NULL */
23 unsigned long mapbase
; /* resource base */
24 unsigned int irq
; /* interrupt number */
25 unsigned int uartclk
; /* UART clock rate */
26 unsigned char regshift
; /* register shift */
27 unsigned char iotype
; /* UPIO_* */
29 upf_t flags
; /* UPF_* flags */
33 * Allocate 8250 platform device IDs. Nothing is implied by
34 * the numbering here, except for the legacy entry being -1.
37 PLAT8250_DEV_LEGACY
= -1,
38 PLAT8250_DEV_PLATFORM
,
39 PLAT8250_DEV_PLATFORM1
,
40 PLAT8250_DEV_PLATFORM2
,
41 PLAT8250_DEV_FOURPORT
,
50 * This should be used by drivers which want to register
51 * their own 8250 ports without registering their own
52 * platform device. Using these will make your driver
53 * dependent on the 8250 driver.
57 int serial8250_register_port(struct uart_port
*);
58 void serial8250_unregister_port(int line
);
59 void serial8250_suspend_port(int line
);
60 void serial8250_resume_port(int line
);
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