mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 18:09:03 +09:00
![Andy Shevchenko](/assets/img/avatar_default.png)
Some console devices may appear or disappear at run time. In order to support such a hotplug mechanism introduce a new iomux_replace_device() helper to update the list of devices without altering environment. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
38 lines
972 B
C
38 lines
972 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* (C) Copyright 2008
|
|
* Gary Jennejohn, DENX Software Engineering GmbH, garyj@denx.de.
|
|
*/
|
|
|
|
#ifndef _IO_MUX_H
|
|
#define _IO_MUX_H
|
|
|
|
#include <stdio_dev.h>
|
|
|
|
/*
|
|
* Stuff required to support console multiplexing.
|
|
*/
|
|
|
|
/*
|
|
* Pointers to devices used for each file type. Defined in console.c
|
|
* but storage is allocated in iomux.c.
|
|
*/
|
|
extern struct stdio_dev **console_devices[MAX_FILES];
|
|
/*
|
|
* The count of devices assigned to each FILE. Defined in console.c
|
|
* and populated in iomux.c.
|
|
*/
|
|
extern int cd_count[MAX_FILES];
|
|
|
|
#define for_each_console_dev(i, file, dev) \
|
|
for (i = 0, dev = console_devices[file][i]; \
|
|
i < cd_count[file]; \
|
|
i++, dev = console_devices[file][i])
|
|
|
|
int iomux_match_device(struct stdio_dev **, const int, struct stdio_dev *);
|
|
int iomux_doenv(const int, const char *);
|
|
int iomux_replace_device(const int, const char *, const char *);
|
|
void iomux_printdevs(const int);
|
|
|
|
#endif /* _IO_MUX_H */
|