1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * (C) Copyright 2000-2009
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
11 #include <linux/errno.h>
13 extern char console_buffer[];
15 /* common/console.c */
16 int console_init_f(void); /* Before relocation; uses the serial stuff */
17 int console_init_r(void); /* After relocation; uses the console stuff */
18 int console_assign(int file, const char *devname); /* Assign the console */
20 int had_ctrlc(void); /* have we had a Control-C since last clear? */
21 void clear_ctrlc(void); /* clear the Control-C condition */
22 int disable_ctrlc(int); /* 1 to disable, 0 to enable Control-C detect */
23 int confirm_yesno(void); /* 1 if input is "y", "Y", "yes" or "YES" */
25 #ifdef CONFIG_CONSOLE_RECORD
27 * console_record_init() - set up the console recording buffers
29 * This should be called as soon as malloc() is available so that the maximum
30 * amount of console output can be recorded.
32 * @return 0 if OK, -ENOMEM if out of memory
34 int console_record_init(void);
37 * console_record_reset() - reset the console recording buffers
39 * Removes any data in the buffers
41 void console_record_reset(void);
44 * console_record_reset_enable() - reset and enable the console buffers
46 * This should be called to enable the console buffer.
50 int console_record_reset_enable(void);
53 * console_record_readline() - Read a line from the console output
55 * This reads the next available line from the console output previously
58 * @str: Place to put string
59 * @maxlen: Maximum length of @str including nul terminator
60 * @return length of string returned
62 int console_record_readline(char *str, int maxlen);
65 * console_record_avail() - Get the number of available bytes in console output
67 * @return available bytes (0 if empty)
69 int console_record_avail(void);
71 static inline int console_record_init(void)
73 /* Always succeed, since it is not enabled */
78 static inline void console_record_reset(void)
80 /* Nothing to do here */
83 static inline int console_record_reset_enable(void)
85 /* Cannot enable it as it is not supported */
89 static inline int console_record_readline(char *str, int maxlen)
95 static inline int console_record_avail(void)
97 /* There is never anything available */
101 #endif /* !CONFIG_CONSOLE_RECORD */
104 * console_announce_r() - print a U-Boot console on non-serial consoles
106 * When U-Boot starts up with a display it generally does not announce itself
107 * on the display. The banner is instead emitted on the UART before relocation.
108 * This function prints a banner on devices which (we assume) did not receive
109 * it before relocation.
111 * @return 0 (meaning no errors)
113 int console_announce_r(void);
116 * console_puts_select_stderr() - Output a string to selected console devices
118 * This writes to stderr only. It is useful for outputting errors
120 * @serial_only: true to output only to serial, false to output to everything
122 * @s: String to output
124 void console_puts_select_stderr(bool serial_only, const char *s);
127 * CONSOLE multiplexing.
129 #ifdef CONFIG_CONSOLE_MUX