Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1#ifndef _ALPHA_TERMIOS_H
2#define _ALPHA_TERMIOS_H
3
4#include <asm/ioctls.h>
5#include <asm/termbits.h>
6
7struct sgttyb {
8 char sg_ispeed;
9 char sg_ospeed;
10 char sg_erase;
11 char sg_kill;
12 short sg_flags;
13};
14
15struct tchars {
16 char t_intrc;
17 char t_quitc;
18 char t_startc;
19 char t_stopc;
20 char t_eofc;
21 char t_brkc;
22};
23
24struct ltchars {
25 char t_suspc;
26 char t_dsuspc;
27 char t_rprntc;
28 char t_flushc;
29 char t_werasc;
30 char t_lnextc;
31};
32
33struct winsize {
34 unsigned short ws_row;
35 unsigned short ws_col;
36 unsigned short ws_xpixel;
37 unsigned short ws_ypixel;
38};
39
40#define NCC 8
41struct termio {
42 unsigned short c_iflag; /* input mode flags */
43 unsigned short c_oflag; /* output mode flags */
44 unsigned short c_cflag; /* control mode flags */
45 unsigned short c_lflag; /* local mode flags */
46 unsigned char c_line; /* line discipline */
47 unsigned char c_cc[NCC]; /* control characters */
48};
49
50/*
51 * c_cc characters in the termio structure. Oh, how I love being
52 * backwardly compatible. Notice that character 4 and 5 are
53 * interpreted differently depending on whether ICANON is set in
54 * c_lflag. If it's set, they are used as _VEOF and _VEOL, otherwise
55 * as _VMIN and V_TIME. This is for compatibility with OSF/1 (which
56 * is compatible with sysV)...
57 */
58#define _VINTR 0
59#define _VQUIT 1
60#define _VERASE 2
61#define _VKILL 3
62#define _VEOF 4
63#define _VMIN 4
64#define _VEOL 5
65#define _VTIME 5
66#define _VEOL2 6
67#define _VSWTC 7
68
69/* line disciplines */
70#define N_TTY 0
71#define N_SLIP 1
72#define N_MOUSE 2
73#define N_PPP 3
74#define N_STRIP 4
75#define N_AX25 5
76#define N_X25 6 /* X.25 async */
77#define N_6PACK 7
78#define N_MASC 8 /* Reserved for Mobitex module <kaz@cafe.net> */
79#define N_R3964 9 /* Reserved for Simatic R3964 module */
80#define N_PROFIBUS_FDL 10 /* Reserved for Profibus <Dave@mvhi.com> */
81#define N_IRDA 11 /* Linux IrDa - http://irda.sourceforge.net/ */
82#define N_SMSBLOCK 12 /* SMS block mode - for talking to GSM data cards about SMS messages */
83#define N_HDLC 13 /* synchronous HDLC */
84#define N_SYNC_PPP 14
85#define N_HCI 15 /* Bluetooth HCI UART */
86
87#ifdef __KERNEL__
88/* eof=^D eol=\0 eol2=\0 erase=del
89 werase=^W kill=^U reprint=^R sxtc=\0
90 intr=^C quit=^\ susp=^Z <OSF/1 VDSUSP>
91 start=^Q stop=^S lnext=^V discard=^U
92 vmin=\1 vtime=\0
93*/
94#define INIT_C_CC "\004\000\000\177\027\025\022\000\003\034\032\000\021\023\026\025\001\000"
95
96/*
97 * Translate a "termio" structure into a "termios". Ugh.
98 */
99
100#define user_termio_to_kernel_termios(a_termios, u_termio) \
101({ \
102 struct termios *k_termios = (a_termios); \
103 struct termio k_termio; \
104 int canon, ret; \
105 \
106 ret = copy_from_user(&k_termio, u_termio, sizeof(k_termio)); \
107 if (!ret) { \
108 /* Overwrite only the low bits. */ \
109 *(unsigned short *)&k_termios->c_iflag = k_termio.c_iflag; \
110 *(unsigned short *)&k_termios->c_oflag = k_termio.c_oflag; \
111 *(unsigned short *)&k_termios->c_cflag = k_termio.c_cflag; \
112 *(unsigned short *)&k_termios->c_lflag = k_termio.c_lflag; \
113 canon = k_termio.c_lflag & ICANON; \
114 \
115 k_termios->c_cc[VINTR] = k_termio.c_cc[_VINTR]; \
116 k_termios->c_cc[VQUIT] = k_termio.c_cc[_VQUIT]; \
117 k_termios->c_cc[VERASE] = k_termio.c_cc[_VERASE]; \
118 k_termios->c_cc[VKILL] = k_termio.c_cc[_VKILL]; \
119 k_termios->c_cc[VEOL2] = k_termio.c_cc[_VEOL2]; \
120 k_termios->c_cc[VSWTC] = k_termio.c_cc[_VSWTC]; \
121 k_termios->c_cc[canon ? VEOF : VMIN] = k_termio.c_cc[_VEOF]; \
122 k_termios->c_cc[canon ? VEOL : VTIME] = k_termio.c_cc[_VEOL]; \
123 } \
124 ret; \
125})
126
127/*
128 * Translate a "termios" structure into a "termio". Ugh.
129 *
130 * Note the "fun" _VMIN overloading.
131 */
132#define kernel_termios_to_user_termio(u_termio, a_termios) \
133({ \
134 struct termios *k_termios = (a_termios); \
135 struct termio k_termio; \
136 int canon; \
137 \
138 k_termio.c_iflag = k_termios->c_iflag; \
139 k_termio.c_oflag = k_termios->c_oflag; \
140 k_termio.c_cflag = k_termios->c_cflag; \
141 canon = (k_termio.c_lflag = k_termios->c_lflag) & ICANON; \
142 \
143 k_termio.c_line = k_termios->c_line; \
144 k_termio.c_cc[_VINTR] = k_termios->c_cc[VINTR]; \
145 k_termio.c_cc[_VQUIT] = k_termios->c_cc[VQUIT]; \
146 k_termio.c_cc[_VERASE] = k_termios->c_cc[VERASE]; \
147 k_termio.c_cc[_VKILL] = k_termios->c_cc[VKILL]; \
148 k_termio.c_cc[_VEOF] = k_termios->c_cc[canon ? VEOF : VMIN]; \
149 k_termio.c_cc[_VEOL] = k_termios->c_cc[canon ? VEOL : VTIME]; \
150 k_termio.c_cc[_VEOL2] = k_termios->c_cc[VEOL2]; \
151 k_termio.c_cc[_VSWTC] = k_termios->c_cc[VSWTC]; \
152 \
153 copy_to_user(u_termio, &k_termio, sizeof(k_termio)); \
154})
155
156#define user_termios_to_kernel_termios(k, u) \
157 copy_from_user(k, u, sizeof(struct termios))
158
159#define kernel_termios_to_user_termios(u, k) \
160 copy_to_user(u, k, sizeof(struct termios))
161
162#endif /* __KERNEL__ */
163
164#endif /* _ALPHA_TERMIOS_H */