1 /* 2 * include/linux/serial.h 3 * 4 * Copyright (C) 1992 by Theodore Ts'o. 5 * 6 * Redistribution of this file is permitted under the terms of the GNU 7 * Public License (GPL) 8 */ 9 #ifndef _LINUX_SERIAL_H 10 #define _LINUX_SERIAL_H 11 12 #include <asm/page.h> 13 #include <uapi/linux/serial.h> 14 15 /* Helper for dealing with UART_LCR_WLEN* defines */ 16 #define UART_LCR_WLEN(x) ((x) - 5) 17 18 /* 19 * Counters of the input lines (CTS, DSR, RI, CD) interrupts 20 */ 21 22 struct async_icount { 23 __u32 cts, dsr, rng, dcd, tx, rx; 24 __u32 frame, parity, overrun, brk; 25 __u32 buf_overrun; 26 }; 27 28 /* 29 * The size of the serial xmit buffer is 1 page, or 4096 bytes 30 */ 31 #define SERIAL_XMIT_SIZE PAGE_SIZE 32 33 #include <linux/compiler.h> 34 35 #endif /* _LINUX_SERIAL_H */ 36