/* $Id: termios.h,v 1.8 2000/01/27 23:45:30 ralf Exp $
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1995, 1996 by Ralf Baechle
 */
#ifndef _ASM_TERMIOS_H
#define _ASM_TERMIOS_H

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

struct sgttyb {
	char	sg_ispeed;
	char	sg_ospeed;
	char	sg_erase;
	char	sg_kill;
	int	sg_flags;	/* SGI special - int, not short */
};

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;        /* stop process signal */
        char    t_dsuspc;       /* delayed stop process signal */
        char    t_rprntc;       /* reprint line */
        char    t_flushc;       /* flush output (toggles) */
        char    t_werasc;       /* word erase */
        char    t_lnextc;       /* literal next character */
};

/* TIOCGSIZE, TIOCSSIZE not defined yet.  Only needed for SunOS source
   compatibility anyway ... */

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

#define NCC	8
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 */
	char c_line;			/* line discipline */
	unsigned char c_cc[NCCS];	/* control characters */
};

#ifdef __KERNEL__
/*
 *	intr=^C		quit=^\		erase=del	kill=^U
 *	vmin=\1		vtime=\0	eol2=\0		swtc=\0
 *	start=^Q	stop=^S		susp=^Z		vdsusp=
 *	reprint=^R	discard=^U	werase=^W	lnext=^V
 *	eof=^D		eol=\0
 */
#define INIT_C_CC "\003\034\177\025\1\0\0\0\021\023\032\0\022\017\027\026\004\0"
#endif

/* modem lines */
#define TIOCM_LE	0x001		/* line enable */
#define TIOCM_DTR	0x002		/* data terminal ready */
#define TIOCM_RTS	0x004		/* request to send */
#define TIOCM_ST	0x010		/* secondary transmit */
#define TIOCM_SR	0x020		/* secondary receive */
#define TIOCM_CTS	0x040		/* clear to send */
#define TIOCM_CAR	0x100		/* carrier detect */
#define TIOCM_CD	TIOCM_CAR
#define TIOCM_RNG	0x200		/* ring */
#define TIOCM_RI	TIOCM_RNG
#define TIOCM_DSR	0x400		/* data set ready */
#define TIOCM_OUT1	0x2000
#define TIOCM_OUT2	0x4000
#define TIOCM_LOOP	0x8000

/* 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 fo 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://irda.sourceforge.net/ */
#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	/* synchronous PPP */

#ifdef __KERNEL__

#include <linux/string.h>

/*
 * Translate a "termio" structure into a "termios". Ugh.
 */
#define user_termio_to_kernel_termios(termios, termio) \
({ \
	unsigned short tmp; \
	get_user(tmp, &(termio)->c_iflag); \
	(termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \
	get_user(tmp, &(termio)->c_oflag); \
	(termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \
	get_user(tmp, &(termio)->c_cflag); \
	(termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \
	get_user(tmp, &(termio)->c_lflag); \
	(termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \
	get_user((termios)->c_line, &(termio)->c_line); \
	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 /* defined(__KERNEL__) */

#endif /* _ASM_TERMIOS_H */
