LXR uboot/include/iomux.h

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * (C) Copyright 2008
   4 * Gary Jennejohn, DENX Software Engineering GmbH, garyj@denx.de.
   5 */
   6
   7#ifndef _IO_MUX_H
   8#define _IO_MUX_H
   9
  10#include <stdio_dev.h>
  11
  12/*
  13 * Stuff required to support console multiplexing.
  14 */
  15
  16/*
  17 * Pointers to devices used for each file type.  Defined in console.c
  18 * but storage is allocated in iomux.c.
  19 */
  20extern struct stdio_dev **console_devices[MAX_FILES];
  21/*
  22 * The count of devices assigned to each FILE.  Defined in console.c
  23 * and populated in iomux.c.
  24 */
  25extern int cd_count[MAX_FILES];
  26
  27#define for_each_console_dev(i, file, dev)              \
  28        for (i = 0, dev = console_devices[file][i];     \
  29             i < cd_count[file];                        \
  30             i++, dev = console_devices[file][i])
  31
  32int iomux_match_device(struct stdio_dev **, const int, struct stdio_dev *);
  33int iomux_doenv(const int, const char *);
  34int iomux_replace_device(const int, const char *, const char *);
  35void iomux_printdevs(const int);
  36
  37#endif /* _IO_MUX_H */
  38