u-boot/include/display_options.h
Simon Glass 33eac2dc25 Add print_freq() to display frequencies nicely
Add a function similar to print_size() that works for frequencies. It can
handle from Hz to GHz.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2015-04-29 21:02:33 -06:00

60 lines
1.6 KiB
C

/*
* Copyright (c) 2015 Google, Inc
*
* (C) Copyright 2000-2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __DISPLAY_OPTIONS_H
#define __DISPLAY_OPTIONS_H
/**
* print_size() - Print a size with a suffix
*
* Print sizes as "xxx KiB", "xxx.y KiB", "xxx MiB", "xxx.y MiB",
* xxx GiB, xxx.y GiB, etc as needed; allow for optional trailing string
* (like "\n")
*
* @size: Size to print
* @suffix String to print after the size
*/
void print_size(uint64_t size, const char *suffix);
/**
* print_freq() - Print a frequency with a suffix
*
* Print frequencies as "x.xx GHz", "xxx KHz", etc as needed; allow for
* optional trailing string (like "\n")
*
* @freq: Frequency to print in Hz
* @suffix String to print after the frequency
*/
void print_freq(uint64_t freq, const char *suffix);
/**
* print_buffer() - Print data buffer in hex and ascii form
*
* Data reads are buffered so that each memory address is only read once.
* This is useful when displaying the contents of volatile registers.
*
* @addr: Starting address to display at start of line
* @data: pointer to data buffer
* @width: data value width. May be 1, 2, or 4.
* @count: number of values to display
* @linelen: Number of values to print per line; specify 0 for default length
*/
int print_buffer(ulong addr, const void *data, uint width, uint count,
uint linelen);
/**
* display_options() - display the version string / build tag
*
* This displays the U-Boot version string. If a build tag is available this
* is displayed also.
*/
int display_options(void);
#endif