1 #ifndef _SPARC_TERMIOS_H 2 #define _SPARC_TERMIOS_H 3 4 #include <uapi/asm/termios.h> 5 6 7 /* 8 * c_cc characters in the termio structure. Oh, how I love being 9 * backwardly compatible. Notice that character 4 and 5 are 10 * interpreted differently depending on whether ICANON is set in 11 * c_lflag. If it's set, they are used as _VEOF and _VEOL, otherwise 12 * as _VMIN and V_TIME. This is for compatibility with OSF/1 (which 13 * is compatible with sysV)... 14 */ 15 #define _VMIN 4 16 #define _VTIME 5 17 18 /* intr=^C quit=^\ erase=del kill=^U 19 eof=^D eol=\0 eol2=\0 sxtc=\0 20 start=^Q stop=^S susp=^Z dsusp=^Y 21 reprint=^R discard=^U werase=^W lnext=^V 22 vmin=\1 vtime=\0 23 */ 24 #define INIT_C_CC "\003\034\177\025\004\000\000\000\021\023\032\031\022\025\027\026\001" 25 26 /* 27 * Translate a "termio" structure into a "termios". Ugh. 28 */ 29 #define user_termio_to_kernel_termios(termios, termio) \ 30 ({ \ 31 unsigned short tmp; \ 32 int err; \ 33 err = get_user(tmp, &(termio)->c_iflag); \ 34 (termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \ 35 err |= get_user(tmp, &(termio)->c_oflag); \ 36 (termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \ 37 err |= get_user(tmp, &(termio)->c_cflag); \ 38 (termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \ 39 err |= get_user(tmp, &(termio)->c_lflag); \ 40 (termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \ 41 err |= copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \ 42 err; \ 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(termio, termios) \ 51 ({ \ 52 int err; \ 53 err = put_user((termios)->c_iflag, &(termio)->c_iflag); \ 54 err |= put_user((termios)->c_oflag, &(termio)->c_oflag); \ 55 err |= put_user((termios)->c_cflag, &(termio)->c_cflag); \ 56 err |= put_user((termios)->c_lflag, &(termio)->c_lflag); \ 57 err |= put_user((termios)->c_line, &(termio)->c_line); \ 58 err |= copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \ 59 if (!((termios)->c_lflag & ICANON)) { \ 60 err |= put_user((termios)->c_cc[VMIN], &(termio)->c_cc[_VMIN]); \ 61 err |= put_user((termios)->c_cc[VTIME], &(termio)->c_cc[_VTIME]); \ 62 } \ 63 err; \ 64 }) 65 66 #define user_termios_to_kernel_termios(k, u) \ 67 ({ \ 68 int err; \ 69 err = get_user((k)->c_iflag, &(u)->c_iflag); \ 70 err |= get_user((k)->c_oflag, &(u)->c_oflag); \ 71 err |= get_user((k)->c_cflag, &(u)->c_cflag); \ 72 err |= get_user((k)->c_lflag, &(u)->c_lflag); \ 73 err |= get_user((k)->c_line, &(u)->c_line); \ 74 err |= copy_from_user((k)->c_cc, (u)->c_cc, NCCS); \ 75 if ((k)->c_lflag & ICANON) { \ 76 err |= get_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ 77 err |= get_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \ 78 } else { \ 79 err |= get_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ 80 err |= get_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \ 81 } \ 82 err |= get_user((k)->c_ispeed, &(u)->c_ispeed); \ 83 err |= get_user((k)->c_ospeed, &(u)->c_ospeed); \ 84 err; \ 85 }) 86 87 #define kernel_termios_to_user_termios(u, k) \ 88 ({ \ 89 int err; \ 90 err = put_user((k)->c_iflag, &(u)->c_iflag); \ 91 err |= put_user((k)->c_oflag, &(u)->c_oflag); \ 92 err |= put_user((k)->c_cflag, &(u)->c_cflag); \ 93 err |= put_user((k)->c_lflag, &(u)->c_lflag); \ 94 err |= put_user((k)->c_line, &(u)->c_line); \ 95 err |= copy_to_user((u)->c_cc, (k)->c_cc, NCCS); \ 96 if (!((k)->c_lflag & ICANON)) { \ 97 err |= put_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ 98 err |= put_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \ 99 } else { \ 100 err |= put_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ 101 err |= put_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \ 102 } \ 103 err |= put_user((k)->c_ispeed, &(u)->c_ispeed); \ 104 err |= put_user((k)->c_ospeed, &(u)->c_ospeed); \ 105 err; \ 106 }) 107 108 #define user_termios_to_kernel_termios_1(k, u) \ 109 ({ \ 110 int err; \ 111 err = get_user((k)->c_iflag, &(u)->c_iflag); \ 112 err |= get_user((k)->c_oflag, &(u)->c_oflag); \ 113 err |= get_user((k)->c_cflag, &(u)->c_cflag); \ 114 err |= get_user((k)->c_lflag, &(u)->c_lflag); \ 115 err |= get_user((k)->c_line, &(u)->c_line); \ 116 err |= copy_from_user((k)->c_cc, (u)->c_cc, NCCS); \ 117 if ((k)->c_lflag & ICANON) { \ 118 err |= get_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ 119 err |= get_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \ 120 } else { \ 121 err |= get_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ 122 err |= get_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \ 123 } \ 124 err; \ 125 }) 126 127 #define kernel_termios_to_user_termios_1(u, k) \ 128 ({ \ 129 int err; \ 130 err = put_user((k)->c_iflag, &(u)->c_iflag); \ 131 err |= put_user((k)->c_oflag, &(u)->c_oflag); \ 132 err |= put_user((k)->c_cflag, &(u)->c_cflag); \ 133 err |= put_user((k)->c_lflag, &(u)->c_lflag); \ 134 err |= put_user((k)->c_line, &(u)->c_line); \ 135 err |= copy_to_user((u)->c_cc, (k)->c_cc, NCCS); \ 136 if (!((k)->c_lflag & ICANON)) { \ 137 err |= put_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ 138 err |= put_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \ 139 } else { \ 140 err |= put_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ 141 err |= put_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \ 142 } \ 143 err; \ 144 }) 145 146 #endif /* _SPARC_TERMIOS_H */ 147