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1da177e4 LT |
1 | #ifndef _ALPHA_TERMIOS_H |
2 | #define _ALPHA_TERMIOS_H | |
3 | ||
4 | #include <asm/ioctls.h> | |
5 | #include <asm/termbits.h> | |
6 | ||
7 | struct sgttyb { | |
8 | char sg_ispeed; | |
9 | char sg_ospeed; | |
10 | char sg_erase; | |
11 | char sg_kill; | |
12 | short sg_flags; | |
13 | }; | |
14 | ||
15 | struct 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 | ||
24 | struct 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 | ||
33 | struct 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 | |
41 | struct 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 | ||
1da177e4 LT |
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 | ({ \ | |
5072d5d5 | 84 | struct ktermios *k_termios = (a_termios); \ |
1da177e4 LT |
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 | ({ \ | |
5072d5d5 | 116 | struct ktermios *k_termios = (a_termios); \ |
1da177e4 LT |
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 */ |