aboutsummaryrefslogtreecommitdiffstats
path: root/arch/alpha/include/asm/termios.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/alpha/include/asm/termios.h')
-rw-r--r--arch/alpha/include/asm/termios.h146
1 files changed, 146 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/termios.h b/arch/alpha/include/asm/termios.h
new file mode 100644
index 000000000000..fa13716a11c3
--- /dev/null
+++ b/arch/alpha/include/asm/termios.h
@@ -0,0 +1,146 @@
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#ifdef __KERNEL__
70/* eof=^D eol=\0 eol2=\0 erase=del
71 werase=^W kill=^U reprint=^R sxtc=\0
72 intr=^C quit=^\ susp=^Z <OSF/1 VDSUSP>
73 start=^Q stop=^S lnext=^V discard=^U
74 vmin=\1 vtime=\0
75*/
76#define INIT_C_CC "\004\000\000\177\027\025\022\000\003\034\032\000\021\023\026\025\001\000"
77
78/*
79 * Translate a "termio" structure into a "termios". Ugh.
80 */
81
82#define user_termio_to_kernel_termios(a_termios, u_termio) \
83({ \
84 struct ktermios *k_termios = (a_termios); \
85 struct termio k_termio; \
86 int canon, ret; \
87 \
88 ret = copy_from_user(&k_termio, u_termio, sizeof(k_termio)); \
89 if (!ret) { \
90 /* Overwrite only the low bits. */ \
91 *(unsigned short *)&k_termios->c_iflag = k_termio.c_iflag; \
92 *(unsigned short *)&k_termios->c_oflag = k_termio.c_oflag; \
93 *(unsigned short *)&k_termios->c_cflag = k_termio.c_cflag; \
94 *(unsigned short *)&k_termios->c_lflag = k_termio.c_lflag; \
95 canon = k_termio.c_lflag & ICANON; \
96 \
97 k_termios->c_cc[VINTR] = k_termio.c_cc[_VINTR]; \
98 k_termios->c_cc[VQUIT] = k_termio.c_cc[_VQUIT]; \
99 k_termios->c_cc[VERASE] = k_termio.c_cc[_VERASE]; \
100 k_termios->c_cc[VKILL] = k_termio.c_cc[_VKILL]; \
101 k_termios->c_cc[VEOL2] = k_termio.c_cc[_VEOL2]; \
102 k_termios->c_cc[VSWTC] = k_termio.c_cc[_VSWTC]; \
103 k_termios->c_cc[canon ? VEOF : VMIN] = k_termio.c_cc[_VEOF]; \
104 k_termios->c_cc[canon ? VEOL : VTIME] = k_termio.c_cc[_VEOL]; \
105 } \
106 ret; \
107})
108
109/*
110 * Translate a "termios" structure into a "termio". Ugh.
111 *
112 * Note the "fun" _VMIN overloading.
113 */
114#define kernel_termios_to_user_termio(u_termio, a_termios) \
115({ \
116 struct ktermios *k_termios = (a_termios); \
117 struct termio k_termio; \
118 int canon; \
119 \
120 k_termio.c_iflag = k_termios->c_iflag; \
121 k_termio.c_oflag = k_termios->c_oflag; \
122 k_termio.c_cflag = k_termios->c_cflag; \
123 canon = (k_termio.c_lflag = k_termios->c_lflag) & ICANON; \
124 \
125 k_termio.c_line = k_termios->c_line; \
126 k_termio.c_cc[_VINTR] = k_termios->c_cc[VINTR]; \
127 k_termio.c_cc[_VQUIT] = k_termios->c_cc[VQUIT]; \
128 k_termio.c_cc[_VERASE] = k_termios->c_cc[VERASE]; \
129 k_termio.c_cc[_VKILL] = k_termios->c_cc[VKILL]; \
130 k_termio.c_cc[_VEOF] = k_termios->c_cc[canon ? VEOF : VMIN]; \
131 k_termio.c_cc[_VEOL] = k_termios->c_cc[canon ? VEOL : VTIME]; \
132 k_termio.c_cc[_VEOL2] = k_termios->c_cc[VEOL2]; \
133 k_termio.c_cc[_VSWTC] = k_termios->c_cc[VSWTC]; \
134 \
135 copy_to_user(u_termio, &k_termio, sizeof(k_termio)); \
136})
137
138#define user_termios_to_kernel_termios(k, u) \
139 copy_from_user(k, u, sizeof(struct termios))
140
141#define kernel_termios_to_user_termios(u, k) \
142 copy_to_user(u, k, sizeof(struct termios))
143
144#endif /* __KERNEL__ */
145
146#endif /* _ALPHA_TERMIOS_H */
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-10 06:46:49 -0500