LXR linux/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 */
 147