serial_8250.h
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上传日期:2009-04-28
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- /*
- * linux/include/linux/serial_8250.h
- *
- * Copyright (C) 2004 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
- #ifndef _LINUX_SERIAL_8250_H
- #define _LINUX_SERIAL_8250_H
- #include <linux/serial_core.h>
- #include <linux/device.h>
- /*
- * This is the platform device platform_data structure
- */
- struct plat_serial8250_port {
- unsigned long iobase; /* io base address */
- void __iomem *membase; /* ioremap cookie or NULL */
- unsigned long mapbase; /* resource base */
- unsigned int irq; /* interrupt number */
- unsigned int uartclk; /* UART clock rate */
- unsigned char regshift; /* register shift */
- unsigned char iotype; /* UPIO_* */
- unsigned char hub6;
- unsigned int flags; /* UPF_* flags */
- };
- /*
- * Allocate 8250 platform device IDs. Nothing is implied by
- * the numbering here, except for the legacy entry being -1.
- */
- enum {
- PLAT8250_DEV_LEGACY = -1,
- PLAT8250_DEV_PLATFORM,
- PLAT8250_DEV_PLATFORM1,
- PLAT8250_DEV_FOURPORT,
- PLAT8250_DEV_ACCENT,
- PLAT8250_DEV_BOCA,
- PLAT8250_DEV_HUB6,
- PLAT8250_DEV_MCA,
- };
- /*
- * This should be used by drivers which want to register
- * their own 8250 ports without registering their own
- * platform device. Using these will make your driver
- * dependent on the 8250 driver.
- */
- struct uart_port;
- int serial8250_register_port(struct uart_port *);
- void serial8250_unregister_port(int line);
- void serial8250_suspend_port(int line);
- void serial8250_resume_port(int line);
- #endif