[linux-2.6-block.git] / include / asm-generic / termios.h

#ifndef _ASM_GENERIC_TERMIOS_H
#define _ASM_GENERIC_TERMIOS_H
/*
 * Most architectures have straight copies of the x86 code, with
 * varying levels of bug fixes on top. Usually it's a good idea
 * to use this generic version instead, but be careful to avoid
 * ABI changes.
 * New architectures should not provide their own version.
 */

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

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 */
	unsigned char c_line;		/* line discipline */
	unsigned char c_cc[NCC];	/* control characters */
};

/* modem lines */
#define TIOCM_LE	0x001
#define TIOCM_DTR	0x002
#define TIOCM_RTS	0x004
#define TIOCM_ST	0x008
#define TIOCM_SR	0x010
#define TIOCM_CTS	0x020
#define TIOCM_CAR	0x040
#define TIOCM_RNG	0x080
#define TIOCM_DSR	0x100
#define TIOCM_CD	TIOCM_CAR
#define TIOCM_RI	TIOCM_RNG
#define TIOCM_OUT1	0x2000
#define TIOCM_OUT2	0x4000
#define TIOCM_LOOP	0x8000

/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */

#ifdef __KERNEL__

#include <asm/uaccess.h>

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

/*
 * Translate a "termio" structure into a "termios". Ugh.
 */
static inline int user_termio_to_kernel_termios(struct ktermios *termios,
						const struct termio __user *termio)
{
	unsigned short tmp;

	if (get_user(tmp, &termio->c_iflag) < 0)
		goto fault;
	termios->c_iflag = (0xffff0000 & termios->c_iflag) | tmp;

	if (get_user(tmp, &termio->c_oflag) < 0)
		goto fault;
	termios->c_oflag = (0xffff0000 & termios->c_oflag) | tmp;

	if (get_user(tmp, &termio->c_cflag) < 0)
		goto fault;
	termios->c_cflag = (0xffff0000 & termios->c_cflag) | tmp;

	if (get_user(tmp, &termio->c_lflag) < 0)
		goto fault;
	termios->c_lflag = (0xffff0000 & termios->c_lflag) | tmp;

	if (get_user(termios->c_line, &termio->c_line) < 0)
		goto fault;

	if (copy_from_user(termios->c_cc, termio->c_cc, NCC) != 0)
		goto fault;

	return 0;

 fault:
	return -EFAULT;
}

/*
 * Translate a "termios" structure into a "termio". Ugh.
 */
static inline int kernel_termios_to_user_termio(struct termio __user *termio,
						struct ktermios *termios)
{
	if (put_user(termios->c_iflag, &termio->c_iflag) < 0 ||
	    put_user(termios->c_oflag, &termio->c_oflag) < 0 ||
	    put_user(termios->c_cflag, &termio->c_cflag) < 0 ||
	    put_user(termios->c_lflag, &termio->c_lflag) < 0 ||
	    put_user(termios->c_line,  &termio->c_line) < 0 ||
	    copy_to_user(termio->c_cc, termios->c_cc, NCC) != 0)
		return -EFAULT;

	return 0;
}

#ifdef TCGETS2
static inline int user_termios_to_kernel_termios(struct ktermios *k,
						 struct termios2 __user *u)
{
	return copy_from_user(k, u, sizeof(struct termios2));
}

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

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));
}

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));
}
#else /* TCGETS2 */
static inline int user_termios_to_kernel_termios(struct ktermios *k,
						 struct termios __user *u)
{
	return copy_from_user(k, u, sizeof(struct termios));
}

static inline int kernel_termios_to_user_termios(struct termios __user *u,
						 struct ktermios *k)
{
	return copy_to_user(u, k, sizeof(struct termios));
}
#endif /* TCGETS2 */

#endif	/* __KERNEL__ */

#endif /* _ASM_GENERIC_TERMIOS_H */
Commit	Line	Data
6103ec56 AB	1	#ifndef _ASM_GENERIC_TERMIOS_H
	2	#define _ASM_GENERIC_TERMIOS_H
	3	/*
	4	* Most architectures have straight copies of the x86 code, with
	5	* varying levels of bug fixes on top. Usually it's a good idea
	6	* to use this generic version instead, but be careful to avoid
	7	* ABI changes.
	8	* New architectures should not provide their own version.
	9	*/
	10
	11	#include <asm/termbits.h>
	12	#include <asm/ioctls.h>
	13
	14	struct winsize {
	15	unsigned short ws_row;
	16	unsigned short ws_col;
	17	unsigned short ws_xpixel;
	18	unsigned short ws_ypixel;
	19	};
	20
	21	#define NCC 8
	22	struct termio {
	23	unsigned short c_iflag; /* input mode flags */
	24	unsigned short c_oflag; /* output mode flags */
	25	unsigned short c_cflag; /* control mode flags */
	26	unsigned short c_lflag; /* local mode flags */
	27	unsigned char c_line; /* line discipline */
	28	unsigned char c_cc[NCC]; /* control characters */
	29	};
	30
	31	/* modem lines */
	32	#define TIOCM_LE 0x001
	33	#define TIOCM_DTR 0x002
	34	#define TIOCM_RTS 0x004
	35	#define TIOCM_ST 0x008
	36	#define TIOCM_SR 0x010
	37	#define TIOCM_CTS 0x020
	38	#define TIOCM_CAR 0x040
	39	#define TIOCM_RNG 0x080
	40	#define TIOCM_DSR 0x100
	41	#define TIOCM_CD TIOCM_CAR
	42	#define TIOCM_RI TIOCM_RNG
	43	#define TIOCM_OUT1 0x2000
	44	#define TIOCM_OUT2 0x4000
	45	#define TIOCM_LOOP 0x8000
	46
	47	/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
	48
	49	#ifdef __KERNEL__
	50
	51	#include <asm/uaccess.h>
	52
	53	/* intr=^C quit=^\ erase=del kill=^U
	54	eof=^D vtime=\0 vmin=\1 sxtc=\0
	55	start=^Q stop=^S susp=^Z eol=\0
	56	reprint=^R discard=^U werase=^W lnext=^V
	57	eol2=\0
	58	*/
	59	#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
	60
	61	/*
	62	* Translate a "termio" structure into a "termios". Ugh.
	63	*/
	64	static inline int user_termio_to_kernel_termios(struct ktermios *termios,
65	const struct termio __user *termio)
66	{
67	unsigned short tmp;
68
69	if (get_user(tmp, &termio->c_iflag) < 0)
70	goto fault;
71	termios->c_iflag = (0xffff0000 & termios->c_iflag) \| tmp;
72
73	if (get_user(tmp, &termio->c_oflag) < 0)
74	goto fault;
75	termios->c_oflag = (0xffff0000 & termios->c_oflag) \| tmp;
76
77	if (get_user(tmp, &termio->c_cflag) < 0)
78	goto fault;
79	termios->c_cflag = (0xffff0000 & termios->c_cflag) \| tmp;
80
81	if (get_user(tmp, &termio->c_lflag) < 0)
82	goto fault;
83	termios->c_lflag = (0xffff0000 & termios->c_lflag) \| tmp;
84
85	if (get_user(termios->c_line, &termio->c_line) < 0)
86	goto fault;
87
88	if (copy_from_user(termios->c_cc, termio->c_cc, NCC) != 0)
89	goto fault;
90
91	return 0;
92
93	fault:
94	return -EFAULT;
95	}
96
97	/*
98	* Translate a "termios" structure into a "termio". Ugh.
99	*/
100	static inline int kernel_termios_to_user_termio(struct termio __user *termio,
101	struct ktermios *termios)
102	{
103	if (put_user(termios->c_iflag, &termio->c_iflag) < 0 \|\|
104	put_user(termios->c_oflag, &termio->c_oflag) < 0 \|\|
105	put_user(termios->c_cflag, &termio->c_cflag) < 0 \|\|
106	put_user(termios->c_lflag, &termio->c_lflag) < 0 \|\|
107	put_user(termios->c_line, &termio->c_line) < 0 \|\|
108	copy_to_user(termio->c_cc, termios->c_cc, NCC) != 0)
109	return -EFAULT;
110
111	return 0;
112	}
113
114	#ifdef TCGETS2
115	static inline int user_termios_to_kernel_termios(struct ktermios *k,
116	struct termios2 __user *u)
117	{
118	return copy_from_user(k, u, sizeof(struct termios2));
119	}
120
121	static inline int kernel_termios_to_user_termios(struct termios2 __user *u,
122	struct ktermios *k)
123	{
124	return copy_to_user(u, k, sizeof(struct termios2));
125	}
126
127	static inline int user_termios_to_kernel_termios_1(struct ktermios *k,
128	struct termios __user *u)
129	{
130	return copy_from_user(k, u, sizeof(struct termios));
131	}
132
133	static inline int kernel_termios_to_user_termios_1(struct termios __user *u,
134	struct ktermios *k)
135	{
136	return copy_to_user(u, k, sizeof(struct termios));
137	}
138	#else /* TCGETS2 */
139	static inline int user_termios_to_kernel_termios(struct ktermios *k,
140	struct termios __user *u)
141	{
142	return copy_from_user(k, u, sizeof(struct termios));
143	}
144
145	static inline int kernel_termios_to_user_termios(struct termios __user *u,
146	struct ktermios *k)
147	{
148	return copy_to_user(u, k, sizeof(struct termios));
149	}
150	#endif /* TCGETS2 */
151
152	#endif /* __KERNEL__ */
153
154	#endif /* _ASM_GENERIC_TERMIOS_H */