[mirror_ubuntu-artful-kernel.git] / arch / mips / include / asm / termios.h

/*
 * 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, 2000, 2001 by Ralf Baechle
 * Copyright (C) 2000, 2001 Silicon Graphics, Inc.
 */
#ifndef _ASM_TERMIOS_H
#define _ASM_TERMIOS_H

#include <linux/errno.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__
#include <linux/module.h>

/*
 *	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

#ifdef __KERNEL__

#include <linux/string.h>

/*
 * Translate a "termio" structure into a "termios". Ugh.
 */
static inline int user_termio_to_kernel_termios(struct ktermios *termios,
	struct termio __user *termio)
{
	unsigned short iflag, oflag, cflag, lflag;
	unsigned int err;

	if (!access_ok(VERIFY_READ, termio, sizeof(struct termio)))
		return -EFAULT;

	err = __get_user(iflag, &termio->c_iflag);
	termios->c_iflag = (termios->c_iflag & 0xffff0000) | iflag;
	err |=__get_user(oflag, &termio->c_oflag);
	termios->c_oflag = (termios->c_oflag & 0xffff0000) | oflag;
	err |=__get_user(cflag, &termio->c_cflag);
	termios->c_cflag = (termios->c_cflag & 0xffff0000) | cflag;
	err |=__get_user(lflag, &termio->c_lflag);
	termios->c_lflag = (termios->c_lflag & 0xffff0000) | lflag;
	err |=__get_user(termios->c_line, &termio->c_line);
	if (err)
		return -EFAULT;

	if (__copy_from_user(termios->c_cc, termio->c_cc, NCC))
		return -EFAULT;

	return 0;
}

/*
 * Translate a "termios" structure into a "termio". Ugh.
 */
static inline int kernel_termios_to_user_termio(struct termio __user *termio,
	struct ktermios *termios)
{
	int err;

	if (!access_ok(VERIFY_WRITE, termio, sizeof(struct termio)))
		return -EFAULT;

	err = __put_user(termios->c_iflag, &termio->c_iflag);
	err |= __put_user(termios->c_oflag, &termio->c_oflag);
	err |= __put_user(termios->c_cflag, &termio->c_cflag);
	err |= __put_user(termios->c_lflag, &termio->c_lflag);
	err |= __put_user(termios->c_line, &termio->c_line);
	if (err)
		return -EFAULT;

	if (__copy_to_user(termio->c_cc, termios->c_cc, NCC))
		return -EFAULT;

	return 0;
}

static inline int user_termios_to_kernel_termios(struct ktermios __user *k,
	struct termios2 *u)
{
	return copy_from_user(k, u, sizeof(struct termios2)) ? -EFAULT : 0;
}

static inline int kernel_termios_to_user_termios(struct termios2 __user *u,
	struct ktermios *k)
{
	return copy_to_user(u, k, sizeof(struct termios2)) ? -EFAULT : 0;
}

static inline int user_termios_to_kernel_termios_1(struct ktermios *k,
	struct termios __user *u)
{
	return copy_from_user(k, u, sizeof(struct termios)) ? -EFAULT : 0;
}

static inline int kernel_termios_to_user_termios_1(struct termios __user *u,
	struct ktermios *k)
{
	return copy_to_user(u, k, sizeof(struct termios)) ? -EFAULT : 0;
}

#endif /* defined(__KERNEL__) */

#endif /* _ASM_TERMIOS_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* This file is subject to the terms and conditions of the GNU General Public
	3	* License. See the file "COPYING" in the main directory of this archive
	4	* for more details.
	5	*
	6	* Copyright (C) 1995, 1996, 2000, 2001 by Ralf Baechle
	7	* Copyright (C) 2000, 2001 Silicon Graphics, Inc.
	8	*/
	9	#ifndef _ASM_TERMIOS_H
	10	#define _ASM_TERMIOS_H
	11
732f0462	12	#include <linux/errno.h>
1da177e4 LT	13	#include <asm/termbits.h>
	14	#include <asm/ioctls.h>
	15
	16	struct sgttyb {
	17	char sg_ispeed;
	18	char sg_ospeed;
	19	char sg_erase;
	20	char sg_kill;
	21	int sg_flags; /* SGI special - int, not short */
	22	};
	23
	24	struct tchars {
	25	char t_intrc;
	26	char t_quitc;
	27	char t_startc;
	28	char t_stopc;
	29	char t_eofc;
	30	char t_brkc;
	31	};
	32
	33	struct ltchars {
	34	char t_suspc; /* stop process signal */
	35	char t_dsuspc; /* delayed stop process signal */
	36	char t_rprntc; /* reprint line */
	37	char t_flushc; /* flush output (toggles) */
	38	char t_werasc; /* word erase */
	39	char t_lnextc; /* literal next character */
	40	};
	41
	42	/* TIOCGSIZE, TIOCSSIZE not defined yet. Only needed for SunOS source
	43	compatibility anyway ... */
	44
	45	struct winsize {
	46	unsigned short ws_row;
	47	unsigned short ws_col;
	48	unsigned short ws_xpixel;
	49	unsigned short ws_ypixel;
	50	};
	51
	52	#define NCC 8
	53	struct termio {
	54	unsigned short c_iflag; /* input mode flags */
	55	unsigned short c_oflag; /* output mode flags */
	56	unsigned short c_cflag; /* control mode flags */
	57	unsigned short c_lflag; /* local mode flags */
	58	char c_line; /* line discipline */
	59	unsigned char c_cc[NCCS]; /* control characters */
	60	};
	61
	62	#ifdef __KERNEL__
	63	#include <linux/module.h>
	64
	65	/*
	66	* intr=^C quit=^\ erase=del kill=^U
	67	* vmin=\1 vtime=\0 eol2=\0 swtc=\0
	68	* start=^Q stop=^S susp=^Z vdsusp=
	69	* reprint=^R discard=^U werase=^W lnext=^V
	70	* eof=^D eol=\0
	71	*/
	72	#define INIT_C_CC "\003\034\177\025\1\0\0\0\021\023\032\0\022\017\027\026\004\0"
	73	#endif
	74
	75	/* modem lines */
	76	#define TIOCM_LE 0x001 /* line enable */
77	#define TIOCM_DTR 0x002 /* data terminal ready */
78	#define TIOCM_RTS 0x004 /* request to send */
79	#define TIOCM_ST 0x010 /* secondary transmit */
80	#define TIOCM_SR 0x020 /* secondary receive */
81	#define TIOCM_CTS 0x040 /* clear to send */
82	#define TIOCM_CAR 0x100 /* carrier detect */
83	#define TIOCM_CD TIOCM_CAR
84	#define TIOCM_RNG 0x200 /* ring */
85	#define TIOCM_RI TIOCM_RNG
86	#define TIOCM_DSR 0x400 /* data set ready */
87	#define TIOCM_OUT1 0x2000
88	#define TIOCM_OUT2 0x4000
89	#define TIOCM_LOOP 0x8000
90
1da177e4 LT	91	#ifdef __KERNEL__
	92
	93	#include <linux/string.h>
	94
	95	/*
	96	* Translate a "termio" structure into a "termios". Ugh.
	97	*/
732f0462 RB	98	static inline int user_termio_to_kernel_termios(struct ktermios *termios,
	99	struct termio __user *termio)
	100	{
	101	unsigned short iflag, oflag, cflag, lflag;
	102	unsigned int err;
	103
	104	if (!access_ok(VERIFY_READ, termio, sizeof(struct termio)))
	105	return -EFAULT;
	106
	107	err = __get_user(iflag, &termio->c_iflag);
	108	termios->c_iflag = (termios->c_iflag & 0xffff0000) \| iflag;
	109	err \|=__get_user(oflag, &termio->c_oflag);
	110	termios->c_oflag = (termios->c_oflag & 0xffff0000) \| oflag;
	111	err \|=__get_user(cflag, &termio->c_cflag);
	112	termios->c_cflag = (termios->c_cflag & 0xffff0000) \| cflag;
	113	err \|=__get_user(lflag, &termio->c_lflag);
	114	termios->c_lflag = (termios->c_lflag & 0xffff0000) \| lflag;
	115	err \|=__get_user(termios->c_line, &termio->c_line);
	116	if (err)
	117	return -EFAULT;
	118
	119	if (__copy_from_user(termios->c_cc, termio->c_cc, NCC))
	120	return -EFAULT;
	121
	122	return 0;
	123	}
1da177e4 LT	124
	125	/*
	126	* Translate a "termios" structure into a "termio". Ugh.
	127	*/
732f0462 RB	128	static inline int kernel_termios_to_user_termio(struct termio __user *termio,
	129	struct ktermios *termios)
	130	{
	131	int err;
	132
	133	if (!access_ok(VERIFY_WRITE, termio, sizeof(struct termio)))
	134	return -EFAULT;
	135
	136	err = __put_user(termios->c_iflag, &termio->c_iflag);
	137	err \|= __put_user(termios->c_oflag, &termio->c_oflag);
	138	err \|= __put_user(termios->c_cflag, &termio->c_cflag);
	139	err \|= __put_user(termios->c_lflag, &termio->c_lflag);
	140	err \|= __put_user(termios->c_line, &termio->c_line);
	141	if (err)
	142	return -EFAULT;
	143
	144	if (__copy_to_user(termio->c_cc, termios->c_cc, NCC))
	145	return -EFAULT;
	146
	147	return 0;
	148	}
	149
	150	static inline int user_termios_to_kernel_termios(struct ktermios __user *k,
	151	struct termios2 *u)
	152	{
	153	return copy_from_user(k, u, sizeof(struct termios2)) ? -EFAULT : 0;
	154	}
	155
	156	static inline int kernel_termios_to_user_termios(struct termios2 __user *u,
	157	struct ktermios *k)
	158	{
	159	return copy_to_user(u, k, sizeof(struct termios2)) ? -EFAULT : 0;
	160	}
	161
	162	static inline int user_termios_to_kernel_termios_1(struct ktermios *k,
	163	struct termios __user *u)
	164	{
	165	return copy_from_user(k, u, sizeof(struct termios)) ? -EFAULT : 0;
	166	}
	167
	168	static inline int kernel_termios_to_user_termios_1(struct termios __user *u,
	169	struct ktermios *k)
	170	{
	171	return copy_to_user(u, k, sizeof(struct termios)) ? -EFAULT : 0;
	172	}
1da177e4 LT	173
	174	#endif /* defined(__KERNEL__) */
	175
	176	#endif /* _ASM_TERMIOS_H */