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 */ |
Vikram Pandita | 1c2f049 | 2009-09-19 13:13:19 -0700 | [diff] [blame] | 25 | unsigned long irqflags; /* request_irq flags */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | unsigned int uartclk; /* UART clock rate */ |
Will Newton | 74a19741 | 2008-02-04 22:27:50 -0800 | [diff] [blame] | 27 | void *private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | unsigned char regshift; /* register shift */ |
| 29 | unsigned char iotype; /* UPIO_* */ |
Russell King | ec9f47c | 2005-06-27 11:12:54 +0100 | [diff] [blame] | 30 | unsigned char hub6; |
Russell King | 0077d45 | 2006-01-21 23:03:28 +0000 | [diff] [blame] | 31 | upf_t flags; /* UPF_* flags */ |
David Daney | 8e23fcc | 2009-01-02 13:49:54 +0000 | [diff] [blame] | 32 | unsigned int type; /* If UPF_FIXED_TYPE */ |
David Daney | 7d6a07d | 2009-01-02 13:49:47 +0000 | [diff] [blame] | 33 | unsigned int (*serial_in)(struct uart_port *, int); |
| 34 | void (*serial_out)(struct uart_port *, int, int); |
Philippe Langlais | 235dae5 | 2010-07-29 17:13:57 +0200 | [diff] [blame] | 35 | void (*set_termios)(struct uart_port *, |
| 36 | struct ktermios *new, |
| 37 | struct ktermios *old); |
Jamie Iles | 583d28e | 2011-08-15 10:17:52 +0100 | [diff] [blame] | 38 | int (*handle_irq)(struct uart_port *); |
Manuel Lauss | c161afe | 2010-09-25 15:13:45 +0200 | [diff] [blame] | 39 | void (*pm)(struct uart_port *, unsigned int state, |
| 40 | unsigned old); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | }; |
| 42 | |
Russell King | bc49a66 | 2005-09-01 15:56:26 +0100 | [diff] [blame] | 43 | /* |
Russell King | 6df29de | 2005-09-08 16:04:41 +0100 | [diff] [blame] | 44 | * Allocate 8250 platform device IDs. Nothing is implied by |
| 45 | * the numbering here, except for the legacy entry being -1. |
| 46 | */ |
| 47 | enum { |
| 48 | PLAT8250_DEV_LEGACY = -1, |
| 49 | PLAT8250_DEV_PLATFORM, |
| 50 | PLAT8250_DEV_PLATFORM1, |
Lennert Buytenhek | 104c7b03 | 2006-03-25 23:03:13 +0000 | [diff] [blame] | 51 | PLAT8250_DEV_PLATFORM2, |
Russell King | 6df29de | 2005-09-08 16:04:41 +0100 | [diff] [blame] | 52 | PLAT8250_DEV_FOURPORT, |
| 53 | PLAT8250_DEV_ACCENT, |
| 54 | PLAT8250_DEV_BOCA, |
Paul B Schroeder | e0980da | 2006-12-06 20:37:03 -0800 | [diff] [blame] | 55 | PLAT8250_DEV_EXAR_ST16C554, |
Russell King | 6df29de | 2005-09-08 16:04:41 +0100 | [diff] [blame] | 56 | PLAT8250_DEV_HUB6, |
| 57 | PLAT8250_DEV_MCA, |
Pantelis Antoniou | 21c614a | 2005-11-06 09:07:03 +0000 | [diff] [blame] | 58 | PLAT8250_DEV_AU1X00, |
Magnus Damm | 61711f8 | 2008-04-28 02:14:22 -0700 | [diff] [blame] | 59 | PLAT8250_DEV_SM501, |
Russell King | 6df29de | 2005-09-08 16:04:41 +0100 | [diff] [blame] | 60 | }; |
| 61 | |
| 62 | /* |
Russell King | bc49a66 | 2005-09-01 15:56:26 +0100 | [diff] [blame] | 63 | * This should be used by drivers which want to register |
| 64 | * their own 8250 ports without registering their own |
| 65 | * platform device. Using these will make your driver |
| 66 | * dependent on the 8250 driver. |
| 67 | */ |
| 68 | struct uart_port; |
Paul Gortmaker | 3986fb2 | 2011-12-04 18:42:20 -0500 | [diff] [blame] | 69 | struct uart_8250_port; |
Russell King | bc49a66 | 2005-09-01 15:56:26 +0100 | [diff] [blame] | 70 | |
| 71 | int serial8250_register_port(struct uart_port *); |
| 72 | void serial8250_unregister_port(int line); |
| 73 | void serial8250_suspend_port(int line); |
| 74 | void serial8250_resume_port(int line); |
| 75 | |
Yinghai Lu | b187f18 | 2007-07-18 00:49:10 -0700 | [diff] [blame] | 76 | extern int early_serial_setup(struct uart_port *port); |
| 77 | |
Yinghai Lu | 18a8bd9 | 2007-07-15 23:37:59 -0700 | [diff] [blame] | 78 | extern int serial8250_find_port(struct uart_port *p); |
| 79 | extern int serial8250_find_port_for_earlycon(void); |
| 80 | extern int setup_early_serial8250_console(char *cmdline); |
Philippe Langlais | 235dae5 | 2010-07-29 17:13:57 +0200 | [diff] [blame] | 81 | extern void serial8250_do_set_termios(struct uart_port *port, |
| 82 | struct ktermios *termios, struct ktermios *old); |
Manuel Lauss | c161afe | 2010-09-25 15:13:45 +0200 | [diff] [blame] | 83 | extern void serial8250_do_pm(struct uart_port *port, unsigned int state, |
| 84 | unsigned int oldstate); |
Paul Gortmaker | 9deaa53 | 2011-12-04 18:42:23 -0500 | [diff] [blame^] | 85 | extern int fsl8250_handle_irq(struct uart_port *port); |
Jamie Iles | 583d28e | 2011-08-15 10:17:52 +0100 | [diff] [blame] | 86 | int serial8250_handle_irq(struct uart_port *port, unsigned int iir); |
Paul Gortmaker | 3986fb2 | 2011-12-04 18:42:20 -0500 | [diff] [blame] | 87 | unsigned char serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr); |
| 88 | void serial8250_tx_chars(struct uart_8250_port *up); |
| 89 | unsigned int serial8250_modem_status(struct uart_8250_port *up); |
Yinghai Lu | 18a8bd9 | 2007-07-15 23:37:59 -0700 | [diff] [blame] | 90 | |
Alan Cox | af7f374 | 2010-10-18 11:38:02 -0700 | [diff] [blame] | 91 | extern void serial8250_set_isa_configurator(void (*v) |
| 92 | (int port, struct uart_port *up, |
| 93 | unsigned short *capabilities)); |
| 94 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | #endif |