1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * (C) Copyright 2000-2009
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
11 #include <stdio_dev.h>
12 #include <linux/errno.h>
14 extern char console_buffer[];
16 /* common/console.c */
17 int console_init_f(void); /* Before relocation; uses the serial stuff */
18 int console_init_r(void); /* After relocation; uses the console stuff */
19 int console_start(int file, struct stdio_dev *sdev); /* Start a console device */
20 void console_stop(int file, struct stdio_dev *sdev); /* Stop a console device */
21 int console_assign(int file, const char *devname); /* Assign the console */
23 int had_ctrlc(void); /* have we had a Control-C since last clear? */
24 void clear_ctrlc(void); /* clear the Control-C condition */
25 int disable_ctrlc(int); /* 1 to disable, 0 to enable Control-C detect */
26 int confirm_yesno(void); /* 1 if input is "y", "Y", "yes" or "YES" */
28 #ifdef CONFIG_CONSOLE_RECORD
30 * console_record_init() - set up the console recording buffers
32 * This should be called as soon as malloc() is available so that the maximum
33 * amount of console output can be recorded.
35 * @return 0 if OK, -ENOMEM if out of memory
37 int console_record_init(void);
40 * console_record_reset() - reset the console recording buffers
42 * Removes any data in the buffers
44 void console_record_reset(void);
47 * console_record_reset_enable() - reset and enable the console buffers
49 * This should be called to enable the console buffer.
53 int console_record_reset_enable(void);
56 * console_record_readline() - Read a line from the console output
58 * This reads the next available line from the console output previously
61 * @str: Place to put string
62 * @maxlen: Maximum length of @str including nul terminator
63 * @return length of string returned
65 int console_record_readline(char *str, int maxlen);
68 * console_record_avail() - Get the number of available bytes in console output
70 * @return available bytes (0 if empty)
72 int console_record_avail(void);
74 static inline int console_record_init(void)
76 /* Always succeed, since it is not enabled */
81 static inline void console_record_reset(void)
83 /* Nothing to do here */
86 static inline int console_record_reset_enable(void)
88 /* Cannot enable it as it is not supported */
92 static inline int console_record_readline(char *str, int maxlen)
98 static inline int console_record_avail(void)
100 /* There is never anything available */
104 #endif /* !CONFIG_CONSOLE_RECORD */
107 * console_announce_r() - print a U-Boot console on non-serial consoles
109 * When U-Boot starts up with a display it generally does not announce itself
110 * on the display. The banner is instead emitted on the UART before relocation.
111 * This function prints a banner on devices which (we assume) did not receive
112 * it before relocation.
114 * @return 0 (meaning no errors)
116 int console_announce_r(void);
119 * console_puts_select_stderr() - Output a string to selected console devices
121 * This writes to stderr only. It is useful for outputting errors
123 * @serial_only: true to output only to serial, false to output to everything
125 * @s: String to output
127 void console_puts_select_stderr(bool serial_only, const char *s);
130 * CONSOLE multiplexing.
132 #ifdef CONFIG_CONSOLE_MUX