Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/include/asm-alpha/termios.h
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1 #ifndef _ALPHA_TERMIOS_H 2 #define _ALPHA_TERMIOS_H 3 4 #include <asm/ioctls.h> 5 #include <asm/termbits.h> 6 7 struct sgttyb { 8 char sg_ispeed; 9 char sg_ospeed; 10 char sg_erase; 11 char sg_kill; 12 short sg_flags; 13 }; 14 15 struct tchars { 16 char t_intrc; 17 char t_quitc; 18 char t_startc; 19 char t_stopc; 20 char t_eofc; 21 char t_brkc; 22 }; 23 24 struct ltchars { 25 char t_suspc; 26 char t_dsuspc; 27 char t_rprntc; 28 char t_flushc; 29 char t_werasc; 30 char t_lnextc; 31 }; 32 33 struct winsize { 34 unsigned short ws_row; 35 unsigned short ws_col; 36 unsigned short ws_xpixel; 37 unsigned short ws_ypixel; 38 }; 39 40 #define NCC 8 41 struct termio { 42 unsigned short c_iflag; /* input mode flags */ 43 unsigned short c_oflag; /* output mode flags */ 44 unsigned short c_cflag; /* control mode flags */ 45 unsigned short c_lflag; /* local mode flags */ 46 unsigned char c_line; /* line discipline */ 47 unsigned char c_cc[NCC]; /* control characters */ 48 }; 49 50 /* 51 * c_cc characters in the termio structure. Oh, how I love being 52 * backwardly compatible. Notice that character 4 and 5 are 53 * interpreted differently depending on whether ICANON is set in 54 * c_lflag. If it's set, they are used as _VEOF and _VEOL, otherwise 55 * as _VMIN and V_TIME. This is for compatibility with OSF/1 (which 56 * is compatible with sysV)... 57 */ 58 #define _VINTR 0 59 #define _VQUIT 1 60 #define _VERASE 2 61 #define _VKILL 3 62 #define _VEOF 4 63 #define _VMIN 4 64 #define _VEOL 5 65 #define _VTIME 5 66 #define _VEOL2 6 67 #define _VSWTC 7 68 69 /* line disciplines */ 70 #define N_TTY 0 71 #define N_SLIP 1 72 #define N_MOUSE 2 73 #define N_PPP 3 74 #define N_STRIP 4 75 #define N_AX25 5 76 #define N_X25 6 /* X.25 async */ 77 #define N_6PACK 7 78 #define N_MASC 8 /* Reserved for Mobitex module <kaz@cafe.net> */ 79 #define N_R3964 9 /* Reserved for Simatic R3964 module */ 80 #define N_PROFIBUS_FDL 10 /* Reserved for Profibus <Dave@mvhi.com> */ 81 #define N_IRDA 11 /* Linux IrDa - http://irda.sourceforge.net/ */ 82 #define N_SMSBLOCK 12 /* SMS block mode - for talking to GSM data cards about SMS messages */ 83 #define N_HDLC 13 /* synchronous HDLC */ 84 #define N_SYNC_PPP 14 85 #define N_HCI 15 /* Bluetooth HCI UART */ 86 87 #ifdef __KERNEL__ 88 /* eof=^D eol=\0 eol2=\0 erase=del 89 werase=^W kill=^U reprint=^R sxtc=\0 90 intr=^C quit=^\ susp=^Z <OSF/1 VDSUSP> 91 start=^Q stop=^S lnext=^V discard=^U 92 vmin=\1 vtime=\0 93 */ 94 #define INIT_C_CC "\004\000\000\177\027\025\022\000\003\034\032\000\021\023\026\025\001\000" 95 96 /* 97 * Translate a "termio" structure into a "termios". Ugh. 98 */ 99 100 #define user_termio_to_kernel_termios(a_termios, u_termio) \ 101 ({ \ 102 struct termios *k_termios = (a_termios); \ 103 struct termio k_termio; \ 104 int canon, ret; \ 105 \ 106 ret = copy_from_user(&k_termio, u_termio, sizeof(k_termio)); \ 107 if (!ret) { \ 108 /* Overwrite only the low bits. */ \ 109 *(unsigned short *)&k_termios->c_iflag = k_termio.c_iflag; \ 110 *(unsigned short *)&k_termios->c_oflag = k_termio.c_oflag; \ 111 *(unsigned short *)&k_termios->c_cflag = k_termio.c_cflag; \ 112 *(unsigned short *)&k_termios->c_lflag = k_termio.c_lflag; \ 113 canon = k_termio.c_lflag & ICANON; \ 114 \ 115 k_termios->c_cc[VINTR] = k_termio.c_cc[_VINTR]; \ 116 k_termios->c_cc[VQUIT] = k_termio.c_cc[_VQUIT]; \ 117 k_termios->c_cc[VERASE] = k_termio.c_cc[_VERASE]; \ 118 k_termios->c_cc[VKILL] = k_termio.c_cc[_VKILL]; \ 119 k_termios->c_cc[VEOL2] = k_termio.c_cc[_VEOL2]; \ 120 k_termios->c_cc[VSWTC] = k_termio.c_cc[_VSWTC]; \ 121 k_termios->c_cc[canon ? VEOF : VMIN] = k_termio.c_cc[_VEOF]; \ 122 k_termios->c_cc[canon ? VEOL : VTIME] = k_termio.c_cc[_VEOL]; \ 123 } \ 124 ret; \ 125 }) 126 127 /* 128 * Translate a "termios" structure into a "termio". Ugh. 129 * 130 * Note the "fun" _VMIN overloading. 131 */ 132 #define kernel_termios_to_user_termio(u_termio, a_termios) \ 133 ({ \ 134 struct termios *k_termios = (a_termios); \ 135 struct termio k_termio; \ 136 int canon; \ 137 \ 138 k_termio.c_iflag = k_termios->c_iflag; \ 139 k_termio.c_oflag = k_termios->c_oflag; \ 140 k_termio.c_cflag = k_termios->c_cflag; \ 141 canon = (k_termio.c_lflag = k_termios->c_lflag) & ICANON; \ 142 \ 143 k_termio.c_line = k_termios->c_line; \ 144 k_termio.c_cc[_VINTR] = k_termios->c_cc[VINTR]; \ 145 k_termio.c_cc[_VQUIT] = k_termios->c_cc[VQUIT]; \ 146 k_termio.c_cc[_VERASE] = k_termios->c_cc[VERASE]; \ 147 k_termio.c_cc[_VKILL] = k_termios->c_cc[VKILL]; \ 148 k_termio.c_cc[_VEOF] = k_termios->c_cc[canon ? VEOF : VMIN]; \ 149 k_termio.c_cc[_VEOL] = k_termios->c_cc[canon ? VEOL : VTIME]; \ 150 k_termio.c_cc[_VEOL2] = k_termios->c_cc[VEOL2]; \ 151 k_termio.c_cc[_VSWTC] = k_termios->c_cc[VSWTC]; \ 152 \ 153 copy_to_user(u_termio, &k_termio, sizeof(k_termio)); \ 154 }) 155 156 #define user_termios_to_kernel_termios(k, u) \ 157 copy_from_user(k, u, sizeof(struct termios)) 158 159 #define kernel_termios_to_user_termios(u, k) \ 160 copy_to_user(u, k, sizeof(struct termios)) 161 162 #endif /* __KERNEL__ */ 163 164 #endif /* _ALPHA_TERMIOS_H */
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