1 #ifndef _ALPHA_TERMIOS_H 2 #define _ALPHA_TERMIOS_H 3 4 #include <uapi/asm/termios.h> 5 6 /* eof=^D eol=\0 eol2=\0 erase=del 7 werase=^W kill=^U reprint=^R sxtc=\0 8 intr=^C quit=^\ susp=^Z <OSF/1 VDSUSP> 9 start=^Q stop=^S lnext=^V discard=^U 10 vmin=\1 vtime=\0 11 */ 12 #define INIT_C_CC "\004\000\000\177\027\025\022\000\003\034\032\000\021\023\026\025\001\000" 13 14 /* 15 * Translate a "termio" structure into a "termios". Ugh. 16 */ 17 18 #define user_termio_to_kernel_termios(a_termios, u_termio) \ 19 ({ \ 20 struct ktermios *k_termios = (a_termios); \ 21 struct termio k_termio; \ 22 int canon, ret; \ 23 \ 24 ret = copy_from_user(&k_termio, u_termio, sizeof(k_termio)); \ 25 if (!ret) { \ 26 /* Overwrite only the low bits. */ \ 27 *(unsigned short *)&k_termios->c_iflag = k_termio.c_iflag; \ 28 *(unsigned short *)&k_termios->c_oflag = k_termio.c_oflag; \ 29 *(unsigned short *)&k_termios->c_cflag = k_termio.c_cflag; \ 30 *(unsigned short *)&k_termios->c_lflag = k_termio.c_lflag; \ 31 canon = k_termio.c_lflag & ICANON; \ 32 \ 33 k_termios->c_cc[VINTR] = k_termio.c_cc[_VINTR]; \ 34 k_termios->c_cc[VQUIT] = k_termio.c_cc[_VQUIT]; \ 35 k_termios->c_cc[VERASE] = k_termio.c_cc[_VERASE]; \ 36 k_termios->c_cc[VKILL] = k_termio.c_cc[_VKILL]; \ 37 k_termios->c_cc[VEOL2] = k_termio.c_cc[_VEOL2]; \ 38 k_termios->c_cc[VSWTC] = k_termio.c_cc[_VSWTC]; \ 39 k_termios->c_cc[canon ? VEOF : VMIN] = k_termio.c_cc[_VEOF]; \ 40 k_termios->c_cc[canon ? VEOL : VTIME] = k_termio.c_cc[_VEOL]; \ 41 } \ 42 ret; \ 43 }) 44 45 /* 46 * Translate a "termios" structure into a "termio". Ugh. 47 * 48 * Note the "fun" _VMIN overloading. 49 */ 50 #define kernel_termios_to_user_termio(u_termio, a_termios) \ 51 ({ \ 52 struct ktermios *k_termios = (a_termios); \ 53 struct termio k_termio; \ 54 int canon; \ 55 \ 56 k_termio.c_iflag = k_termios->c_iflag; \ 57 k_termio.c_oflag = k_termios->c_oflag; \ 58 k_termio.c_cflag = k_termios->c_cflag; \ 59 canon = (k_termio.c_lflag = k_termios->c_lflag) & ICANON; \ 60 \ 61 k_termio.c_line = k_termios->c_line; \ 62 k_termio.c_cc[_VINTR] = k_termios->c_cc[VINTR]; \ 63 k_termio.c_cc[_VQUIT] = k_termios->c_cc[VQUIT]; \ 64 k_termio.c_cc[_VERASE] = k_termios->c_cc[VERASE]; \ 65 k_termio.c_cc[_VKILL] = k_termios->c_cc[VKILL]; \ 66 k_termio.c_cc[_VEOF] = k_termios->c_cc[canon ? VEOF : VMIN]; \ 67 k_termio.c_cc[_VEOL] = k_termios->c_cc[canon ? VEOL : VTIME]; \ 68 k_termio.c_cc[_VEOL2] = k_termios->c_cc[VEOL2]; \ 69 k_termio.c_cc[_VSWTC] = k_termios->c_cc[VSWTC]; \ 70 \ 71 copy_to_user(u_termio, &k_termio, sizeof(k_termio)); \ 72 }) 73 74 #define user_termios_to_kernel_termios(k, u) \ 75 copy_from_user(k, u, sizeof(struct termios)) 76 77 #define kernel_termios_to_user_termios(u, k) \ 78 copy_to_user(u, k, sizeof(struct termios)) 79 80 #endif /* _ALPHA_TERMIOS_H */ 81