1. 根目录:
2. arch
3. alpha
4. include
5. uapi
6. asm
7. termbits.h

#ifndef _ALPHA_TERMBITS_H
#define _ALPHA_TERMBITS_H

#include <linux/posix_types.h>

typedef unsigned char	cc_t;
typedef unsigned int	speed_t;
typedef unsigned int	tcflag_t;

/*
 * termios type and macro definitions.  Be careful about adding stuff
 * to this file since it's used in GNU libc and there are strict rules
 * concerning namespace pollution.
 */

#define NCCS 19
struct termios {
	tcflag_t c_iflag;		/* input mode flags */
	tcflag_t c_oflag;		/* output mode flags */
	tcflag_t c_cflag;		/* control mode flags */
	tcflag_t c_lflag;		/* local mode flags */
	cc_t c_cc[NCCS];		/* control characters */
	cc_t c_line;			/* line discipline (== c_cc[19]) */
	speed_t c_ispeed;		/* input speed */
	speed_t c_ospeed;		/* output speed */
};

/* Alpha has matching termios and ktermios */

struct ktermios {
	tcflag_t c_iflag;		/* input mode flags */
	tcflag_t c_oflag;		/* output mode flags */
	tcflag_t c_cflag;		/* control mode flags */
	tcflag_t c_lflag;		/* local mode flags */
	cc_t c_cc[NCCS];		/* control characters */
	cc_t c_line;			/* line discipline (== c_cc[19]) */
	speed_t c_ispeed;		/* input speed */
	speed_t c_ospeed;		/* output speed */
};

/* c_cc characters */
#define VEOF 0
#define VEOL 1
#define VEOL2 2
#define VERASE 3
#define VWERASE 4
#define VKILL 5
#define VREPRINT 6
#define VSWTC 7
#define VINTR 8
#define VQUIT 9
#define VSUSP 10
#define VSTART 12
#define VSTOP 13
#define VLNEXT 14
#define VDISCARD 15
#define VMIN 16
#define VTIME 17

/* c_iflag bits */
#define IGNBRK	0000001
#define BRKINT	0000002
#define IGNPAR	0000004
#define PARMRK	0000010
#define INPCK	0000020
#define ISTRIP	0000040
#define INLCR	0000100
#define IGNCR	0000200
#define ICRNL	0000400
#define IXON	0001000
#define IXOFF	0002000
#define IXANY	0004000
#define IUCLC	0010000
#define IMAXBEL	0020000
#define IUTF8	0040000

/* c_oflag bits */
#define OPOST	0000001
#define ONLCR	0000002
#define OLCUC	0000004

#define OCRNL	0000010
#define ONOCR	0000020
#define ONLRET	0000040

#define OFILL	00000100
#define OFDEL	00000200
#define NLDLY	00001400
#define   NL0	00000000
#define   NL1	00000400
#define   NL2	00001000
#define   NL3	00001400
#define TABDLY	00006000
#define   TAB0	00000000
#define   TAB1	00002000
#define   TAB2	00004000
#define   TAB3	00006000
#define CRDLY	00030000
#define   CR0	00000000
#define   CR1	00010000
#define   CR2	00020000
#define   CR3	00030000
#define FFDLY	00040000
#define   FF0	00000000
#define   FF1	00040000
#define BSDLY	00100000
#define   BS0	00000000
#define   BS1	00100000
#define VTDLY	00200000
#define   VT0	00000000
#define   VT1	00200000
#define XTABS	01000000 /* Hmm.. Linux/i386 considers this part of TABDLY.. */

/* c_cflag bit meaning */
#define CBAUD	0000037
#define  B0	0000000		/* hang up */
#define  B50	0000001
#define  B75	0000002
#define  B110	0000003
#define  B134	0000004
#define  B150	0000005
#define  B200	0000006
#define  B300	0000007
#define  B600	0000010
#define  B1200	0000011
#define  B1800	0000012
#define  B2400	0000013
#define  B4800	0000014
#define  B9600	0000015
#define  B19200	0000016
#define  B38400	0000017
#define EXTA B19200
#define EXTB B38400
#define CBAUDEX 0000000
#define  B57600   00020
#define  B115200  00021
#define  B230400  00022
#define  B460800  00023
#define  B500000  00024
#define  B576000  00025
#define  B921600  00026
#define B1000000  00027
#define B1152000  00030
#define B1500000  00031
#define B2000000  00032
#define B2500000  00033
#define B3000000  00034
#define B3500000  00035
#define B4000000  00036

#define CSIZE	00001400
#define   CS5	00000000
#define   CS6	00000400
#define   CS7	00001000
#define   CS8	00001400

#define CSTOPB	00002000
#define CREAD	00004000
#define PARENB	00010000
#define PARODD	00020000
#define HUPCL	00040000

#define CLOCAL	00100000
#define CMSPAR	  010000000000		/* mark or space (stick) parity */
#define CRTSCTS	  020000000000		/* flow control */

/* c_lflag bits */
#define ISIG	0x00000080
#define ICANON	0x00000100
#define XCASE	0x00004000
#define ECHO	0x00000008
#define ECHOE	0x00000002
#define ECHOK	0x00000004
#define ECHONL	0x00000010
#define NOFLSH	0x80000000
#define TOSTOP	0x00400000
#define ECHOCTL	0x00000040
#define ECHOPRT	0x00000020
#define ECHOKE	0x00000001
#define FLUSHO	0x00800000
#define PENDIN	0x20000000
#define IEXTEN	0x00000400
#define EXTPROC	0x10000000

/* Values for the ACTION argument to `tcflow'.  */
#define	TCOOFF		0
#define	TCOON		1
#define	TCIOFF		2
#define	TCION		3

/* Values for the QUEUE_SELECTOR argument to `tcflush'.  */
#define	TCIFLUSH	0
#define	TCOFLUSH	1
#define	TCIOFLUSH	2

/* Values for the OPTIONAL_ACTIONS argument to `tcsetattr'.  */
#define	TCSANOW		0
#define	TCSADRAIN	1
#define	TCSAFLUSH	2

#endif /* _ALPHA_TERMBITS_H */