arch/parisc/hpux/ioctl.c

   1 /*
   2  *    Implements some necessary HPUX ioctls.
   3  *
   4  *    Copyright (C) 1999-2002 Matthew Wilcox <willy with parisc-linux.org>
   5  *
   6  *    This program is free software; you can redistribute it and/or modify
   7  *    it under the terms of the GNU General Public License as published by
   8  *    the Free Software Foundation; either version 2 of the License, or
   9  *    (at your option) any later version.
  10  *
  11  *    This program is distributed in the hope that it will be useful,
  12  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *    GNU General Public License for more details.
  15  *
  16  *    You should have received a copy of the GNU General Public License
  17  *    along with this program; if not, write to the Free Software
  18  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 /*
  22  * Supported ioctls:
  23  *   TCGETA
  24  *   TCSETA
  25  *   TCSETAW
  26  *   TCSETAF
  27  *   TCSBRK
  28  *   TCXONC
  29  *   TCFLSH
  30  *   TIOCGWINSZ
  31  *   TIOCSWINSZ
  32  *   TIOCGPGRP
  33  *   TIOCSPGRP
  34  */
  35
  36 #include <linux/sched.h>
  37 #include <linux/syscalls.h>
  38 #include <asm/errno.h>
  39 #include <asm/ioctl.h>
  40 #include <asm/termios.h>
  41 #include <asm/uaccess.h>
  42
  43 static int hpux_ioctl_t(int fd, unsigned long cmd, unsigned long arg)
  44 {
  45         int result = -EOPNOTSUPP;
  46         int nr = _IOC_NR(cmd);
  47         switch (nr) {
  48         case 106:
  49                 result = sys_ioctl(fd, TIOCSWINSZ, arg);
  50                 break;
  51         case 107:
  52                 result = sys_ioctl(fd, TIOCGWINSZ, arg);
  53                 break;
  54         }
  55         return result;
  56 }
  57
  58 int hpux_ioctl(int fd, unsigned long cmd, unsigned long arg)
  59 {
  60         int result = -EOPNOTSUPP;
  61         int type = _IOC_TYPE(cmd);
  62         switch (type) {
  63         case 'T':
  64                 /* Our structures are now compatible with HPUX's */
  65                 result = sys_ioctl(fd, cmd, arg);
  66                 break;
  67         case 't':
  68                 result = hpux_ioctl_t(fd, cmd, arg);
  69                 break;
  70         }
  71         return result;
  72 }