Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Russell King | d052d1b | 2005-10-29 19:07:23 +0100 | [diff] [blame] | 15 | #include <linux/platform_device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | |
Russell King | bc49a66 | 2005-09-01 15:56:26 +0100 | [diff] [blame] | 17 | /* |
| 18 | * This is the platform device platform_data structure |
| 19 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | struct plat_serial8250_port { |
| 21 | unsigned long iobase; /* io base address */ |
| 22 | void __iomem *membase; /* ioremap cookie or NULL */ |
Josh Boyer | 4f640ef | 2007-07-23 18:43:44 -0700 | [diff] [blame] | 23 | resource_size_t mapbase; /* resource base */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | unsigned int irq; /* interrupt number */ |
| 25 | unsigned int uartclk; /* UART clock rate */ |
| 26 | unsigned char regshift; /* register shift */ |
| 27 | unsigned char iotype; /* UPIO_* */ |
Russell King | ec9f47c | 2005-06-27 11:12:54 +0100 | [diff] [blame] | 28 | unsigned char hub6; |
Russell King | 0077d45 | 2006-01-21 23:03:28 +0000 | [diff] [blame] | 29 | upf_t flags; /* UPF_* flags */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | }; |
| 31 | |
Russell King | bc49a66 | 2005-09-01 15:56:26 +0100 | [diff] [blame] | 32 | /* |
Russell King | 6df29de | 2005-09-08 16:04:41 +0100 | [diff] [blame] | 33 | * Allocate 8250 platform device IDs. Nothing is implied by |
| 34 | * the numbering here, except for the legacy entry being -1. |
| 35 | */ |
| 36 | enum { |
| 37 | PLAT8250_DEV_LEGACY = -1, |
| 38 | PLAT8250_DEV_PLATFORM, |
| 39 | PLAT8250_DEV_PLATFORM1, |
Lennert Buytenhek | 104c7b03 | 2006-03-25 23:03:13 +0000 | [diff] [blame] | 40 | PLAT8250_DEV_PLATFORM2, |
Russell King | 6df29de | 2005-09-08 16:04:41 +0100 | [diff] [blame] | 41 | PLAT8250_DEV_FOURPORT, |
| 42 | PLAT8250_DEV_ACCENT, |
| 43 | PLAT8250_DEV_BOCA, |
Paul B Schroeder | e0980da | 2006-12-06 20:37:03 -0800 | [diff] [blame] | 44 | PLAT8250_DEV_EXAR_ST16C554, |
Russell King | 6df29de | 2005-09-08 16:04:41 +0100 | [diff] [blame] | 45 | PLAT8250_DEV_HUB6, |
| 46 | PLAT8250_DEV_MCA, |
Pantelis Antoniou | 21c614a | 2005-11-06 09:07:03 +0000 | [diff] [blame] | 47 | PLAT8250_DEV_AU1X00, |
Russell King | 6df29de | 2005-09-08 16:04:41 +0100 | [diff] [blame] | 48 | }; |
| 49 | |
| 50 | /* |
Russell King | bc49a66 | 2005-09-01 15:56:26 +0100 | [diff] [blame] | 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 | */ |
| 56 | struct uart_port; |
| 57 | |
| 58 | int serial8250_register_port(struct uart_port *); |
| 59 | void serial8250_unregister_port(int line); |
| 60 | void serial8250_suspend_port(int line); |
| 61 | void serial8250_resume_port(int line); |
| 62 | |
Yinghai Lu | b187f18 | 2007-07-18 00:49:10 -0700 | [diff] [blame] | 63 | extern int early_serial_setup(struct uart_port *port); |
| 64 | |
Yinghai Lu | 18a8bd9 | 2007-07-15 23:37:59 -0700 | [diff] [blame] | 65 | extern int serial8250_find_port(struct uart_port *p); |
| 66 | extern int serial8250_find_port_for_earlycon(void); |
| 67 | extern int setup_early_serial8250_console(char *cmdline); |
| 68 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | #endif |