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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 */ |
155 |
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od-2011-09-04
od-2011-09-18
v2.6.34-rc5
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