aboutsummaryrefslogtreecommitdiff
path: root/include/console.h
blob: 4c6b8f2614ca8766d3cb9f057f385068f3dbccbf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
/* 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>

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_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_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.
 */
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.
 */
void 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);

/**
 * 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