include/iomux.h

   1 /*
   2  * (C) Copyright 2008
   3  * Gary Jennejohn, DENX Software Engineering GmbH, garyj@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  *This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #ifndef _IO_MUX_H
  25 #define _IO_MUX_H
  26
  27 #include <stdio_dev.h>
  28
  29 /*
  30  * Stuff required to support console multiplexing.
  31  */
  32
  33 /*
  34  * Pointers to devices used for each file type.  Defined in console.c
  35  * but storage is allocated in iomux.c.
  36  */
  37 extern struct stdio_dev **console_devices[MAX_FILES];
  38 /*
  39  * The count of devices assigned to each FILE.  Defined in console.c
  40  * and populated in iomux.c.
  41  */
  42 extern int cd_count[MAX_FILES];
  43
  44 int iomux_doenv(const int, const char *);
  45 void iomux_printdevs(const int);
  46 struct stdio_dev *search_device(int, const char *);
  47
  48 #endif /* _IO_MUX_H */