mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-08 22:24:32 +00:00
ae69738d3b
Provide a documentation for console_search_dev(). Suggested-by: Simon Glass <sjg@chromium.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
148 lines
3.8 KiB
C
148 lines
3.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* (C) Copyright 2000-2009
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*/
|
|
|
|
#ifndef __CONSOLE_H
|
|
#define __CONSOLE_H
|
|
|
|
#include <stdbool.h>
|
|
#include <stdio_dev.h>
|
|
#include <linux/errno.h>
|
|
|
|
extern char console_buffer[];
|
|
|
|
/* common/console.c */
|
|
int console_init_f(void); /* Before relocation; uses the serial stuff */
|
|
int console_init_r(void); /* After relocation; uses the console stuff */
|
|
int console_start(int file, struct stdio_dev *sdev); /* Start a console device */
|
|
void console_stop(int file, struct stdio_dev *sdev); /* Stop a console device */
|
|
int console_assign(int file, const char *devname); /* Assign the console */
|
|
int ctrlc(void);
|
|
int had_ctrlc(void); /* have we had a Control-C since last clear? */
|
|
void clear_ctrlc(void); /* clear the Control-C condition */
|
|
int disable_ctrlc(int); /* 1 to disable, 0 to enable Control-C detect */
|
|
int confirm_yesno(void); /* 1 if input is "y", "Y", "yes" or "YES" */
|
|
|
|
/**
|
|
* console_search_dev() - search for stdio device with given flags and name
|
|
* @flags: device flags as per input/output/system
|
|
* @name: device name
|
|
*
|
|
* Iterates over registered STDIO devices and match them with given @flags
|
|
* and @name.
|
|
*
|
|
* @return pointer to the &struct stdio_dev if found, or NULL otherwise
|
|
*/
|
|
struct stdio_dev *console_search_dev(int flags, const char *name);
|
|
|
|
#ifdef CONFIG_CONSOLE_RECORD
|
|
/**
|
|
* console_record_init() - set up the console recording buffers
|
|
*
|
|
* This should be called as soon as malloc() is available so that the maximum
|
|
* amount of console output can be recorded.
|
|
*
|
|
* @return 0 if OK, -ENOMEM if out of memory
|
|
*/
|
|
int console_record_init(void);
|
|
|
|
/**
|
|
* console_record_reset() - reset the console recording buffers
|
|
*
|
|
* Removes any data in the buffers
|
|
*/
|
|
void console_record_reset(void);
|
|
|
|
/**
|
|
* console_record_reset_enable() - reset and enable the console buffers
|
|
*
|
|
* This should be called to enable the console buffer.
|
|
*
|
|
* @return 0 (always)
|
|
*/
|
|
int console_record_reset_enable(void);
|
|
|
|
/**
|
|
* console_record_readline() - Read a line from the console output
|
|
*
|
|
* This reads the next available line from the console output previously
|
|
* recorded.
|
|
*
|
|
* @str: Place to put string
|
|
* @maxlen: Maximum length of @str including nul terminator
|
|
* @return length of string returned
|
|
*/
|
|
int console_record_readline(char *str, int maxlen);
|
|
|
|
/**
|
|
* console_record_avail() - Get the number of available bytes in console output
|
|
*
|
|
* @return available bytes (0 if empty)
|
|
*/
|
|
int console_record_avail(void);
|
|
#else
|
|
static inline int console_record_init(void)
|
|
{
|
|
/* Always succeed, since it is not enabled */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline void console_record_reset(void)
|
|
{
|
|
/* Nothing to do here */
|
|
}
|
|
|
|
static inline int console_record_reset_enable(void)
|
|
{
|
|
/* Cannot enable it as it is not supported */
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int console_record_readline(char *str, int maxlen)
|
|
{
|
|
/* Nothing to read */
|
|
return 0;
|
|
}
|
|
|
|
static inline int console_record_avail(void)
|
|
{
|
|
/* There is never anything available */
|
|
return 0;
|
|
}
|
|
|
|
#endif /* !CONFIG_CONSOLE_RECORD */
|
|
|
|
/**
|
|
* console_announce_r() - print a U-Boot console on non-serial consoles
|
|
*
|
|
* When U-Boot starts up with a display it generally does not announce itself
|
|
* on the display. The banner is instead emitted on the UART before relocation.
|
|
* This function prints a banner on devices which (we assume) did not receive
|
|
* it before relocation.
|
|
*
|
|
* @return 0 (meaning no errors)
|
|
*/
|
|
int console_announce_r(void);
|
|
|
|
/**
|
|
* console_puts_select_stderr() - Output a string to selected console devices
|
|
*
|
|
* This writes to stderr only. It is useful for outputting errors
|
|
*
|
|
* @serial_only: true to output only to serial, false to output to everything
|
|
* else
|
|
* @s: String to output
|
|
*/
|
|
void console_puts_select_stderr(bool serial_only, const char *s);
|
|
|
|
/*
|
|
* CONSOLE multiplexing.
|
|
*/
|
|
#ifdef CONFIG_CONSOLE_MUX
|
|
#include <iomux.h>
|
|
#endif
|
|
|
|
#endif
|