1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _ALPHA_TERMIOS_H 3*4882a593Smuzhiyun #define _ALPHA_TERMIOS_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <uapi/asm/termios.h> 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun /* eof=^D eol=\0 eol2=\0 erase=del 8*4882a593Smuzhiyun werase=^W kill=^U reprint=^R sxtc=\0 9*4882a593Smuzhiyun intr=^C quit=^\ susp=^Z <OSF/1 VDSUSP> 10*4882a593Smuzhiyun start=^Q stop=^S lnext=^V discard=^U 11*4882a593Smuzhiyun vmin=\1 vtime=\0 12*4882a593Smuzhiyun */ 13*4882a593Smuzhiyun #define INIT_C_CC "\004\000\000\177\027\025\022\000\003\034\032\000\021\023\026\025\001\000" 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /* 16*4882a593Smuzhiyun * Translate a "termio" structure into a "termios". Ugh. 17*4882a593Smuzhiyun */ 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #define user_termio_to_kernel_termios(a_termios, u_termio) \ 20*4882a593Smuzhiyun ({ \ 21*4882a593Smuzhiyun struct ktermios *k_termios = (a_termios); \ 22*4882a593Smuzhiyun struct termio k_termio; \ 23*4882a593Smuzhiyun int canon, ret; \ 24*4882a593Smuzhiyun \ 25*4882a593Smuzhiyun ret = copy_from_user(&k_termio, u_termio, sizeof(k_termio)); \ 26*4882a593Smuzhiyun if (!ret) { \ 27*4882a593Smuzhiyun /* Overwrite only the low bits. */ \ 28*4882a593Smuzhiyun *(unsigned short *)&k_termios->c_iflag = k_termio.c_iflag; \ 29*4882a593Smuzhiyun *(unsigned short *)&k_termios->c_oflag = k_termio.c_oflag; \ 30*4882a593Smuzhiyun *(unsigned short *)&k_termios->c_cflag = k_termio.c_cflag; \ 31*4882a593Smuzhiyun *(unsigned short *)&k_termios->c_lflag = k_termio.c_lflag; \ 32*4882a593Smuzhiyun canon = k_termio.c_lflag & ICANON; \ 33*4882a593Smuzhiyun \ 34*4882a593Smuzhiyun k_termios->c_cc[VINTR] = k_termio.c_cc[_VINTR]; \ 35*4882a593Smuzhiyun k_termios->c_cc[VQUIT] = k_termio.c_cc[_VQUIT]; \ 36*4882a593Smuzhiyun k_termios->c_cc[VERASE] = k_termio.c_cc[_VERASE]; \ 37*4882a593Smuzhiyun k_termios->c_cc[VKILL] = k_termio.c_cc[_VKILL]; \ 38*4882a593Smuzhiyun k_termios->c_cc[VEOL2] = k_termio.c_cc[_VEOL2]; \ 39*4882a593Smuzhiyun k_termios->c_cc[VSWTC] = k_termio.c_cc[_VSWTC]; \ 40*4882a593Smuzhiyun k_termios->c_cc[canon ? VEOF : VMIN] = k_termio.c_cc[_VEOF]; \ 41*4882a593Smuzhiyun k_termios->c_cc[canon ? VEOL : VTIME] = k_termio.c_cc[_VEOL]; \ 42*4882a593Smuzhiyun } \ 43*4882a593Smuzhiyun ret; \ 44*4882a593Smuzhiyun }) 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun /* 47*4882a593Smuzhiyun * Translate a "termios" structure into a "termio". Ugh. 48*4882a593Smuzhiyun * 49*4882a593Smuzhiyun * Note the "fun" _VMIN overloading. 50*4882a593Smuzhiyun */ 51*4882a593Smuzhiyun #define kernel_termios_to_user_termio(u_termio, a_termios) \ 52*4882a593Smuzhiyun ({ \ 53*4882a593Smuzhiyun struct ktermios *k_termios = (a_termios); \ 54*4882a593Smuzhiyun struct termio k_termio; \ 55*4882a593Smuzhiyun int canon; \ 56*4882a593Smuzhiyun \ 57*4882a593Smuzhiyun k_termio.c_iflag = k_termios->c_iflag; \ 58*4882a593Smuzhiyun k_termio.c_oflag = k_termios->c_oflag; \ 59*4882a593Smuzhiyun k_termio.c_cflag = k_termios->c_cflag; \ 60*4882a593Smuzhiyun canon = (k_termio.c_lflag = k_termios->c_lflag) & ICANON; \ 61*4882a593Smuzhiyun \ 62*4882a593Smuzhiyun k_termio.c_line = k_termios->c_line; \ 63*4882a593Smuzhiyun k_termio.c_cc[_VINTR] = k_termios->c_cc[VINTR]; \ 64*4882a593Smuzhiyun k_termio.c_cc[_VQUIT] = k_termios->c_cc[VQUIT]; \ 65*4882a593Smuzhiyun k_termio.c_cc[_VERASE] = k_termios->c_cc[VERASE]; \ 66*4882a593Smuzhiyun k_termio.c_cc[_VKILL] = k_termios->c_cc[VKILL]; \ 67*4882a593Smuzhiyun k_termio.c_cc[_VEOF] = k_termios->c_cc[canon ? VEOF : VMIN]; \ 68*4882a593Smuzhiyun k_termio.c_cc[_VEOL] = k_termios->c_cc[canon ? VEOL : VTIME]; \ 69*4882a593Smuzhiyun k_termio.c_cc[_VEOL2] = k_termios->c_cc[VEOL2]; \ 70*4882a593Smuzhiyun k_termio.c_cc[_VSWTC] = k_termios->c_cc[VSWTC]; \ 71*4882a593Smuzhiyun \ 72*4882a593Smuzhiyun copy_to_user(u_termio, &k_termio, sizeof(k_termio)); \ 73*4882a593Smuzhiyun }) 74*4882a593Smuzhiyun 75*4882a593Smuzhiyun #define user_termios_to_kernel_termios(k, u) \ 76*4882a593Smuzhiyun copy_from_user(k, u, sizeof(struct termios2)) 77*4882a593Smuzhiyun 78*4882a593Smuzhiyun #define kernel_termios_to_user_termios(u, k) \ 79*4882a593Smuzhiyun copy_to_user(u, k, sizeof(struct termios2)) 80*4882a593Smuzhiyun 81*4882a593Smuzhiyun #define user_termios_to_kernel_termios_1(k, u) \ 82*4882a593Smuzhiyun copy_from_user(k, u, sizeof(struct termios)) 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun #define kernel_termios_to_user_termios_1(u, k) \ 85*4882a593Smuzhiyun copy_to_user(u, k, sizeof(struct termios)) 86*4882a593Smuzhiyun 87*4882a593Smuzhiyun #endif /* _ALPHA_TERMIOS_H */ 88