Linux kernel mirror (for testing)
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1/*
2 * linux/include/linux/serial_8250.h
3 *
4 * Copyright (C) 2004 Russell King
5 *
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.
10 */
11#ifndef _LINUX_SERIAL_8250_H
12#define _LINUX_SERIAL_8250_H
13
14#include <linux/serial_core.h>
15#include <linux/platform_device.h>
16
17/*
18 * This is the platform device platform_data structure
19 */
20struct 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_* */
28 unsigned char hub6;
29 upf_t flags; /* UPF_* flags */
30};
31
32/*
33 * Allocate 8250 platform device IDs. Nothing is implied by
34 * the numbering here, except for the legacy entry being -1.
35 */
36enum {
37 PLAT8250_DEV_LEGACY = -1,
38 PLAT8250_DEV_PLATFORM,
39 PLAT8250_DEV_PLATFORM1,
40 PLAT8250_DEV_PLATFORM2,
41 PLAT8250_DEV_FOURPORT,
42 PLAT8250_DEV_ACCENT,
43 PLAT8250_DEV_BOCA,
44 PLAT8250_DEV_EXAR_ST16C554,
45 PLAT8250_DEV_HUB6,
46 PLAT8250_DEV_MCA,
47 PLAT8250_DEV_AU1X00,
48};
49
50/*
51 * This should be used by drivers which want to register
52 * their own 8250 ports without registering their own
53 * platform device. Using these will make your driver
54 * dependent on the 8250 driver.
55 */
56struct uart_port;
57
58int serial8250_register_port(struct uart_port *);
59void serial8250_unregister_port(int line);
60void serial8250_suspend_port(int line);
61void serial8250_resume_port(int line);
62
63#endif