1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (c) 2015 Google, Inc
5 * (C) Copyright 2000-2002
6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
9 #ifndef __DISPLAY_OPTIONS_H
10 #define __DISPLAY_OPTIONS_H
13 * print_size() - Print a size with a suffix
15 * Print sizes as "xxx KiB", "xxx.y KiB", "xxx MiB", "xxx.y MiB",
16 * xxx GiB, xxx.y GiB, etc as needed; allow for optional trailing string
19 * @size: Size to print
20 * @suffix String to print after the size
22 #include <display_options.h>
23 void print_size(uint64_t size, const char *suffix);
26 * print_freq() - Print a frequency with a suffix
28 * Print frequencies as "x.xx GHz", "xxx kHz", etc as needed; allow for
29 * optional trailing string (like "\n")
31 * @freq: Frequency to print in Hz
32 * @suffix String to print after the frequency
34 void print_freq(uint64_t freq, const char *suffix);
37 * print_buffer() - Print data buffer in hex and ascii form
39 * Data reads are buffered so that each memory address is only read once.
40 * This is useful when displaying the contents of volatile registers.
42 * @addr: Starting address to display at start of line
43 * @data: pointer to data buffer
44 * @width: data value width. May be 1, 2, or 4.
45 * @count: number of values to display
46 * @linelen: Number of values to print per line; specify 0 for default length
48 int print_buffer(ulong addr, const void *data, uint width, uint count,
52 * Maximum length of an output line is when width == 1
54 * a space, two hex digits and an ASCII character for each byte
55 * 2 spaces between the hex and ASCII
58 #define HEXDUMP_MAX_BUF_LENGTH(bytes) (9 + (bytes) * 4 + 3)
61 * hexdump_line() - Print out a single line of a hex dump
63 * @addr: Starting address to display at start of line
64 * @data: pointer to data buffer
65 * @width: data value width. May be 1, 2, or 4.
66 * @count: number of values to display
67 * @linelen: Number of values to print per line; specify 0 for default length
68 * @out: Output buffer to hold the dump
69 * @size: Size of output buffer in bytes
70 * Return: number of bytes processed, if OK, -ENOSPC if buffer too small
73 int hexdump_line(ulong addr, const void *data, uint width, uint count,
74 uint linelen, char *out, int size);
77 * display_options() - display the version string / build tag
79 * This displays the U-Boot version string. If a build tag is available this
82 int display_options(void);
84 /* Suggested length of the buffer to pass to display_options_get_banner() */
85 #define DISPLAY_OPTIONS_BANNER_LENGTH 200
88 * display_options_get_banner() - Get the U-Boot banner as a string
90 * This returns the U-Boot banner string
92 * @newlines: true to include two newlines at the start
93 * @buf: place to put string
94 * @size: Size of buf (string is truncated to fit)
97 char *display_options_get_banner(bool newlines, char *buf, int size);
99 /* This function is used for testing only */
100 char *display_options_get_banner_priv(bool newlines, const char *build_tag,
101 char *buf, int size);