blob: afe0f6d9b9bcbfdbc39d726f5a202307d3ddbc81 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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>
Russell Kingd052d1b2005-10-29 19:07:23 +010015#include <linux/platform_device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070016
Russell Kingbc49a662005-09-01 15:56:26 +010017/*
18 * This is the platform device platform_data structure
19 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070020struct plat_serial8250_port {
21 unsigned long iobase; /* io base address */
22 void __iomem *membase; /* ioremap cookie or NULL */
Josh Boyer4f640ef2007-07-23 18:43:44 -070023 resource_size_t mapbase; /* resource base */
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 unsigned int irq; /* interrupt number */
25 unsigned int uartclk; /* UART clock rate */
26 unsigned char regshift; /* register shift */
27 unsigned char iotype; /* UPIO_* */
Russell Kingec9f47c2005-06-27 11:12:54 +010028 unsigned char hub6;
Russell King0077d452006-01-21 23:03:28 +000029 upf_t flags; /* UPF_* flags */
Linus Torvalds1da177e2005-04-16 15:20:36 -070030};
31
Russell Kingbc49a662005-09-01 15:56:26 +010032/*
Russell King6df29de2005-09-08 16:04:41 +010033 * 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,
Lennert Buytenhek104c7b032006-03-25 23:03:13 +000040 PLAT8250_DEV_PLATFORM2,
Russell King6df29de2005-09-08 16:04:41 +010041 PLAT8250_DEV_FOURPORT,
42 PLAT8250_DEV_ACCENT,
43 PLAT8250_DEV_BOCA,
Paul B Schroedere0980da2006-12-06 20:37:03 -080044 PLAT8250_DEV_EXAR_ST16C554,
Russell King6df29de2005-09-08 16:04:41 +010045 PLAT8250_DEV_HUB6,
46 PLAT8250_DEV_MCA,
Pantelis Antoniou21c614a2005-11-06 09:07:03 +000047 PLAT8250_DEV_AU1X00,
Russell King6df29de2005-09-08 16:04:41 +010048};
49
50/*
Russell Kingbc49a662005-09-01 15:56:26 +010051 * 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
Yinghai Lub187f182007-07-18 00:49:10 -070063extern int early_serial_setup(struct uart_port *port);
64
Yinghai Lu18a8bd92007-07-15 23:37:59 -070065extern int serial8250_find_port(struct uart_port *p);
66extern int serial8250_find_port_for_earlycon(void);
67extern int setup_early_serial8250_console(char *cmdline);
68
Linus Torvalds1da177e2005-04-16 15:20:36 -070069#endif