original_kernel/include/asm-powerpc/termios.h

#ifndef _ASM_POWERPC_TERMIOS_H
#define _ASM_POWERPC_TERMIOS_H

/*
 * Liberally adapted from alpha/termios.h.  In particular, the c_cc[]
 * fields have been reordered so that termio & termios share the
 * common subset in the same order (for brain dead programs that don't
 * know or care about the differences).
 *
 * 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.
 */

#include <asm/ioctls.h>
#include <asm/termbits.h>

struct sgttyb {
	char	sg_ispeed;
	char	sg_ospeed;
	char	sg_erase;
	char	sg_kill;
	short	sg_flags;
};

struct tchars {
	char	t_intrc;
	char	t_quitc;
	char	t_startc;
	char	t_stopc;
	char	t_eofc;
	char	t_brkc;
};

struct ltchars {
	char	t_suspc;
	char	t_dsuspc;
	char	t_rprntc;
	char	t_flushc;
	char	t_werasc;
	char	t_lnextc;
};

struct winsize {
	unsigned short ws_row;
	unsigned short ws_col;
	unsigned short ws_xpixel;
	unsigned short ws_ypixel;
};

#define NCC 10
struct termio {
	unsigned short c_iflag;		/* input mode flags */
	unsigned short c_oflag;		/* output mode flags */
	unsigned short c_cflag;		/* control mode flags */
	unsigned short c_lflag;		/* local mode flags */
	unsigned char c_line;		/* line discipline */
	unsigned char c_cc[NCC];	/* control characters */
};

/* c_cc characters */
#define _VINTR	0
#define _VQUIT	1
#define _VERASE	2
#define _VKILL	3
#define _VEOF	4
#define _VMIN	5
#define _VEOL	6
#define _VTIME	7
#define _VEOL2	8
#define _VSWTC	9

/* line disciplines */
#define N_TTY		0
#define N_SLIP		1
#define N_MOUSE		2
#define N_PPP		3
#define N_STRIP		4
#define N_AX25		5
#define N_X25		6	/* X.25 async */
#define N_6PACK		7
#define N_MASC		8	/* Reserved for Mobitex module <kaz@cafe.net> */
#define N_R3964		9	/* Reserved for Simatic R3964 module */
#define N_PROFIBUS_FDL	10	/* Reserved for Profibus <Dave@mvhi.com> */
#define N_IRDA		11	/* Linux IrDa - http://www.cs.uit.no/~dagb/irda/irda.html */
#define N_SMSBLOCK	12	/* SMS block mode - for talking to GSM data cards about SMS messages */
#define N_HDLC		13	/* synchronous HDLC */
#define N_SYNC_PPP	14
#define N_HCI		15  /* Bluetooth HCI UART */

#ifdef __KERNEL__
/*                   ^C  ^\ del  ^U  ^D   1   0   0   0   0  ^W  ^R  ^Z  ^Q  ^S  ^V  ^U  */
#define INIT_C_CC "\003\034\177\025\004\001\000\000\000\000\027\022\032\021\023\026\025" 
#endif

#ifdef __KERNEL__

/*
 * Translate a "termio" structure into a "termios". Ugh.
 */
#define SET_LOW_TERMIOS_BITS(termios, termio, x) { \
	unsigned short __tmp; \
	get_user(__tmp,&(termio)->x); \
	(termios)->x = (0xffff0000 & (termios)->x) | __tmp; \
}

#define user_termio_to_kernel_termios(termios, termio) \
({ \
	SET_LOW_TERMIOS_BITS(termios, termio, c_iflag); \
	SET_LOW_TERMIOS_BITS(termios, termio, c_oflag); \
	SET_LOW_TERMIOS_BITS(termios, termio, c_cflag); \
	SET_LOW_TERMIOS_BITS(termios, termio, c_lflag); \
	copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
})

/*
 * Translate a "termios" structure into a "termio". Ugh.
 */
#define kernel_termios_to_user_termio(termio, termios) \
({ \
	put_user((termios)->c_iflag, &(termio)->c_iflag); \
	put_user((termios)->c_oflag, &(termio)->c_oflag); \
	put_user((termios)->c_cflag, &(termio)->c_cflag); \
	put_user((termios)->c_lflag, &(termio)->c_lflag); \
	put_user((termios)->c_line,  &(termio)->c_line); \
	copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
})

#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))

#endif	/* __KERNEL__ */

#endif	/* _ASM_POWERPC_TERMIOS_H */