1 /* termios.h: generic termios/termio user copying/translation
4 #ifndef _ASM_GENERIC_TERMIOS_H
5 #define _ASM_GENERIC_TERMIOS_H
7 #include <asm/uaccess.h>
9 #ifndef __ARCH_TERMIO_GETPUT
12 * Translate a "termio" structure into a "termios". Ugh.
14 static inline int user_termio_to_kernel_termios(struct ktermios *termios,
15 struct termio __user *termio)
19 if (get_user(tmp, &termio->c_iflag) < 0)
21 termios->c_iflag = (0xffff0000 & termios->c_iflag) | tmp;
23 if (get_user(tmp, &termio->c_oflag) < 0)
25 termios->c_oflag = (0xffff0000 & termios->c_oflag) | tmp;
27 if (get_user(tmp, &termio->c_cflag) < 0)
29 termios->c_cflag = (0xffff0000 & termios->c_cflag) | tmp;
31 if (get_user(tmp, &termio->c_lflag) < 0)
33 termios->c_lflag = (0xffff0000 & termios->c_lflag) | tmp;
35 if (get_user(termios->c_line, &termio->c_line) < 0)
38 if (copy_from_user(termios->c_cc, termio->c_cc, NCC) != 0)
48 * Translate a "termios" structure into a "termio". Ugh.
50 static inline int kernel_termios_to_user_termio(struct termio __user *termio,
51 struct ktermios *termios)
53 if (put_user(termios->c_iflag, &termio->c_iflag) < 0 ||
54 put_user(termios->c_oflag, &termio->c_oflag) < 0 ||
55 put_user(termios->c_cflag, &termio->c_cflag) < 0 ||
56 put_user(termios->c_lflag, &termio->c_lflag) < 0 ||
57 put_user(termios->c_line, &termio->c_line) < 0 ||
58 copy_to_user(termio->c_cc, termios->c_cc, NCC) != 0)
64 #ifndef user_termios_to_kernel_termios
65 #define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
68 #ifndef kernel_termios_to_user_termios
69 #define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
72 #define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
73 #define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
75 #endif /* __ARCH_TERMIO_GETPUT */
77 #endif /* _ASM_GENERIC_TERMIOS_H */