serial.h

来自「Linux内核源代码 为压缩文件 是<<Linux内核>&gt」· C头文件 代码 · 共 34 行

/*
 * include/asm-sh/serial.h
 *
 * Configuration details for 8250, 16450, 16550, etc. serial ports
 */

#ifndef _ASM_SERIAL_H
#define _ASM_SERIAL_H

/*
 * This assumes you have a 1.8432 MHz clock for your UART.
 *
 * It'd be nice if someone built a serial card with a 24.576 MHz
 * clock, since the 16550A is capable of handling a top speed of 1.5
 * megabits/second; but this requires the faster clock.
 */
#define BASE_BAUD ( 1843200 / 16 )

#define RS_TABLE_SIZE  2

#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)

#define STD_SERIAL_PORT_DEFNS			\
	/* UART CLK   PORT IRQ     FLAGS        */			\
	{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },	/* ttyS0 */	\
	{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }	/* ttyS1 */

#define SERIAL_PORT_DFNS STD_SERIAL_PORT_DEFNS

/* XXX: This should be moved ino irq.h */
#define irq_cannonicalize(x) (x)

#endif /* _ASM_SERIAL_H */