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
12 #include <linux/types.h>
15 * print_size() - Print a size with a suffix
17 * Print sizes as "xxx KiB", "xxx.y KiB", "xxx MiB", "xxx.y MiB",
18 * xxx GiB, xxx.y GiB, etc as needed; allow for optional trailing string
21 * @size: Size to print
22 * @suffix String to print after the size
24 void print_size(uint64_t size, const char *suffix);
27 * print_freq() - Print a frequency with a suffix
29 * Print frequencies as "x.xx GHz", "xxx kHz", etc as needed; allow for
30 * optional trailing string (like "\n")
32 * @freq: Frequency to print in Hz
33 * @suffix String to print after the frequency
35 void print_freq(uint64_t freq, const char *suffix);
38 * print_buffer() - Print data buffer in hex and ascii form
40 * Data reads are buffered so that each memory address is only read once.
41 * This is useful when displaying the contents of volatile registers.
43 * @addr: Starting address to display at start of line
44 * @data: pointer to data buffer
45 * @width: data value width. May be 1, 2, or 4.
46 * @count: number of values to display
47 * @linelen: Number of values to print per line; specify 0 for default length
49 int print_buffer(ulong addr, const void *data, uint width, uint count,
53 * Maximum length of an output line is when width == 1
55 * a space, two hex digits and an ASCII character for each byte
56 * 2 spaces between the hex and ASCII
59 #define HEXDUMP_MAX_BUF_LENGTH(bytes) (9 + (bytes) * 4 + 3)
62 * hexdump_line() - Print out a single line of a hex dump
64 * @addr: Starting address to display at start of line
65 * @data: pointer to data buffer
66 * @width: data value width. May be 1, 2, or 4.
67 * @count: number of values to display
68 * @linelen: Number of values to print per line; specify 0 for default length
69 * @out: Output buffer to hold the dump
70 * @size: Size of output buffer in bytes
71 * Return: number of bytes processed, if OK, -ENOSPC if buffer too small
74 int hexdump_line(ulong addr, const void *data, uint width, uint count,
75 uint linelen, char *out, int size);
78 * display_options() - display the version string / build tag
80 * This displays the U-Boot version string. If a build tag is available this
83 int display_options(void);
85 /* Suggested length of the buffer to pass to display_options_get_banner() */
86 #define DISPLAY_OPTIONS_BANNER_LENGTH 200
89 * display_options_get_banner() - Get the U-Boot banner as a string
91 * This returns the U-Boot banner string
93 * @newlines: true to include two newlines at the start
94 * @buf: place to put string
95 * @size: Size of buf (string is truncated to fit)
98 char *display_options_get_banner(bool newlines, char *buf, int size);
100 /* This function is used for testing only */
101 char *display_options_get_banner_priv(bool newlines, const char *build_tag,
102 char *buf, int size);