1#ifndef _ALPHA_TERMIOS_H
2#define _ALPHA_TERMIOS_H
3
4#include <uapi/asm/termios.h>
5
6/*	eof=^D		eol=\0		eol2=\0		erase=del
7	werase=^W	kill=^U		reprint=^R	sxtc=\0
8	intr=^C		quit=^\		susp=^Z		<OSF/1 VDSUSP>
9	start=^Q	stop=^S		lnext=^V	discard=^U
10	vmin=\1		vtime=\0
11*/
12#define INIT_C_CC "\004\000\000\177\027\025\022\000\003\034\032\000\021\023\026\025\001\000"
13
14/*
15 * Translate a "termio" structure into a "termios". Ugh.
16 */
17
18#define user_termio_to_kernel_termios(a_termios, u_termio)			\
19({										\
20	struct ktermios *k_termios = (a_termios);				\
21	struct termio k_termio;							\
22	int canon, ret;								\
23										\
24	ret = copy_from_user(&k_termio, u_termio, sizeof(k_termio));		\
25	if (!ret) {								\
26		/* Overwrite only the low bits.  */				\
27		*(unsigned short *)&k_termios->c_iflag = k_termio.c_iflag;	\
28		*(unsigned short *)&k_termios->c_oflag = k_termio.c_oflag;	\
29		*(unsigned short *)&k_termios->c_cflag = k_termio.c_cflag;	\
30		*(unsigned short *)&k_termios->c_lflag = k_termio.c_lflag;	\
31		canon = k_termio.c_lflag & ICANON;				\
32										\
33		k_termios->c_cc[VINTR]  = k_termio.c_cc[_VINTR];		\
34		k_termios->c_cc[VQUIT]  = k_termio.c_cc[_VQUIT];		\
35		k_termios->c_cc[VERASE] = k_termio.c_cc[_VERASE];		\
36		k_termios->c_cc[VKILL]  = k_termio.c_cc[_VKILL];		\
37		k_termios->c_cc[VEOL2]  = k_termio.c_cc[_VEOL2];		\
38		k_termios->c_cc[VSWTC]  = k_termio.c_cc[_VSWTC];		\
39		k_termios->c_cc[canon ? VEOF : VMIN]  = k_termio.c_cc[_VEOF];	\
40		k_termios->c_cc[canon ? VEOL : VTIME] = k_termio.c_cc[_VEOL];	\
41	}									\
42	ret;									\
43})
44
45/*
46 * Translate a "termios" structure into a "termio". Ugh.
47 *
48 * Note the "fun" _VMIN overloading.
49 */
50#define kernel_termios_to_user_termio(u_termio, a_termios)		\
51({									\
52	struct ktermios *k_termios = (a_termios);			\
53	struct termio k_termio;						\
54	int canon;							\
55									\
56	k_termio.c_iflag = k_termios->c_iflag;				\
57	k_termio.c_oflag = k_termios->c_oflag;				\
58	k_termio.c_cflag = k_termios->c_cflag;				\
59	canon = (k_termio.c_lflag = k_termios->c_lflag) & ICANON;	\
60									\
61	k_termio.c_line = k_termios->c_line;				\
62	k_termio.c_cc[_VINTR]  = k_termios->c_cc[VINTR];		\
63	k_termio.c_cc[_VQUIT]  = k_termios->c_cc[VQUIT];		\
64	k_termio.c_cc[_VERASE] = k_termios->c_cc[VERASE];		\
65	k_termio.c_cc[_VKILL]  = k_termios->c_cc[VKILL];		\
66	k_termio.c_cc[_VEOF]   = k_termios->c_cc[canon ? VEOF : VMIN];	\
67	k_termio.c_cc[_VEOL]   = k_termios->c_cc[canon ? VEOL : VTIME];	\
68	k_termio.c_cc[_VEOL2]  = k_termios->c_cc[VEOL2];		\
69	k_termio.c_cc[_VSWTC]  = k_termios->c_cc[VSWTC];		\
70									\
71	copy_to_user(u_termio, &k_termio, sizeof(k_termio));		\
72})
73
74#define user_termios_to_kernel_termios(k, u) \
75	copy_from_user(k, u, sizeof(struct termios))
76
77#define kernel_termios_to_user_termios(u, k) \
78	copy_to_user(u, k, sizeof(struct termios))
79
80#endif	/* _ALPHA_TERMIOS_H */
81