2.11BSD#431 - /usr/src/sys/sys/tty_conf.c

   1: /*
   2:  * Copyright (c) 1986 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  *
   6:  *	@(#)tty_conf.c	1.2 (2.11BSD GTE) 11/30/94
   7:  */
   8: 
   9: #include "param.h"
  10: #include "../pdp/seg.h"
  11: 
  12: #include "file.h"
  13: #include "ioctl.h"
  14: #include "tty.h"
  15: #include "errno.h"
  16: #include "conf.h"
  17: 
  18: int nodev();
  19: int nulldev();
  20: 
  21: int ttyopen(),ttylclose(),ttread(),ttwrite(),nullioctl(),ttstart();
  22: int ttymodem(), nullmodem(), ttyinput();
  23: 
  24: /* #include "bk.h" */
  25: #if NBK > 0
  26: int bkopen(),bkclose(),bkread(),bkinput(),bkioctl();
  27: #endif
  28: 
  29: /* #include "tb.h" */
  30: #if NTB > 0
  31: int tbopen(),tbclose(),tbread(),tbinput(),tbioctl();
  32: #endif
  33: #include "sl.h"
  34: #if NSL > 0
  35: int SLOPEN(),SLCLOSE(),SLINPUT(),SLTIOCTL(),SLSTART();
  36: #endif
  37: 
  38: 
  39: struct  linesw linesw[] =
  40: {
  41:     ttyopen, ttylclose, ttread, ttwrite, nullioctl, /* 0- OTTYDISC */
  42:     ttyinput, nodev, nulldev, ttstart, ttymodem,
  43: #if NBK > 0
  44:     bkopen, bkclose, bkread, ttwrite, bkioctl,  /* 1- NETLDISC */
  45:     bkinput, nodev, nulldev, ttstart, nullmodem,
  46: #else
  47:     nodev, nodev, nodev, nodev, nodev,
  48:     nodev, nodev, nodev, nodev, nodev,
  49: #endif
  50:     ttyopen, ttylclose, ttread, ttwrite, nullioctl, /* 2- NTTYDISC */
  51:     ttyinput, nodev, nulldev, ttstart, ttymodem,
  52: #if NTB > 0
  53:     tbopen, tbclose, tbread, nodev, tbioctl,
  54:     tbinput, nodev, nulldev, ttstart, nullmodem,    /* 3- TABLDISC */
  55: #else
  56:     nodev, nodev, nodev, nodev, nodev,
  57:     nodev, nodev, nodev, nodev, nodev,
  58: #endif
  59: #if NSL > 0
  60:     SLOPEN, SLCLOSE, nodev, nodev, SLTIOCTL,
  61:     SLINPUT, nodev, nulldev, SLSTART, nulldev,  /* 4- SLIPDISC */
  62: #else
  63:     nodev, nodev, nodev, nodev, nodev,
  64:     nodev, nodev, nodev, nodev, nodev,
  65: #endif
  66: };
  67: 
  68: int nldisp = sizeof (linesw) / sizeof (linesw[0]);
  69: 
  70: /*
  71:  * Do nothing specific version of line
  72:  * discipline specific ioctl command.
  73:  */
  74: /*ARGSUSED*/
  75: nullioctl(tp, cmd, data, flags)
  76:     struct tty *tp;
  77:     u_int cmd;
  78:     char *data;
  79:     int flags;
  80: {
  81: 
  82: #ifdef lint
  83:     tp = tp; data = data; flags = flags;
  84: #endif
  85:     return (-1);
  86: }
  87: 
  88: #if NSL > 0
  89: SLOPEN(dev, tp)
  90:     dev_t dev;
  91:     struct tty *tp;
  92: {
  93:     int error, slopen();
  94: 
  95:     if (!suser())
  96:         return (EPERM);
  97:     if (tp->t_line == SLIPDISC)
  98:         return (EBUSY);
  99:     error = KScall(slopen, sizeof(dev_t) + sizeof(struct tty *), dev, tp);
 100:     if (!error)
 101:         ttyflush(tp, FREAD | FWRITE);
 102:     return(error);
 103: }
 104: 
 105: SLCLOSE(tp, flag)
 106:     struct tty *tp;
 107:     int flag;
 108: {
 109:     int slclose();
 110: 
 111:     ttywflush(tp);
 112:     tp->t_line = 0;
 113:     KScall(slclose, sizeof(struct tty *), tp);
 114: }
 115: 
 116: SLTIOCTL(tp, cmd, data, flag)
 117:     struct tty *tp;
 118:     int cmd, flag;
 119:     caddr_t data;
 120: {
 121:     int sltioctl();
 122: 
 123:     return(KScall(sltioctl, sizeof(struct tty *) + sizeof(int) +
 124:         sizeof(caddr_t) + sizeof(int), tp, cmd, data, flag));
 125: }
 126: 
 127: SLSTART(tp)
 128:     struct tty *tp;
 129: {
 130:     mapinfo map;
 131:     void slstart();
 132: 
 133:     savemap(map);
 134:     KScall(slstart, sizeof(struct tty *), tp);
 135:     restormap(map);
 136: }
 137: 
 138: SLINPUT(c, tp)
 139:     int c;
 140:     struct tty *tp;
 141: {
 142:     mapinfo map;
 143:     void slinput();
 144: 
 145:     savemap(map);
 146:     KScall(slinput, sizeof(int) + sizeof(struct tty *), c, tp);
 147:     restormap(map);
 148: }
 149: #endif

Defined functions

Defined variables