arch/sparc/include/asm/termios.h

   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 */