display_options.c
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/*
* (C) Copyright 2000-2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <common.h>
#include <inttypes.h>
#include <version.h>
#include <linux/ctype.h>
#include <asm/io.h>
int display_options (void)
{
#if defined(BUILD_TAG)
printf ("\n\n%s, Build: %s\n\n", version_string, BUILD_TAG);
#else
printf ("\n\n%s\n\n", version_string);
#endif
return 0;
}
void print_size(uint64_t size, const char *s)
{
unsigned long m = 0, n;
uint64_t f;
static const char names[] = {'E', 'P', 'T', 'G', 'M', 'K'};
unsigned long d = 10 * ARRAY_SIZE(names);
char c = 0;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(names); i++, d -= 10) {
if (size >> d) {
c = names[i];
break;
}
}
if (!c) {
printf("%" PRIu64 " Bytes%s", size, s);
return;
}
n = size >> d;
f = size & ((1ULL << d) - 1);
/* If there's a remainder, deal with it */
if (f) {
m = (10ULL * f + (1ULL << (d - 1))) >> d;
if (m >= 10) {
m -= 10;
n += 1;
}
}
printf ("%lu", n);
if (m) {
printf (".%ld", m);
}
printf (" %ciB%s", c, s);
}
/*
* Print data buffer in hex and ascii form to the terminal.
*
* data reads are buffered so that each memory address is only read once.
* Useful when displaying the contents of volatile registers.
*
* parameters:
* 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
*/
#define MAX_LINE_LENGTH_BYTES (64)
#define DEFAULT_LINE_LENGTH_BYTES (16)
int print_buffer(ulong addr, const void *data, uint width, uint count,
uint linelen)
{
/* linebuf as a union causes proper alignment */
union linebuf {
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
uint64_t uq[MAX_LINE_LENGTH_BYTES/sizeof(uint64_t) + 1];
#endif
uint32_t ui[MAX_LINE_LENGTH_BYTES/sizeof(uint32_t) + 1];
uint16_t us[MAX_LINE_LENGTH_BYTES/sizeof(uint16_t) + 1];
uint8_t uc[MAX_LINE_LENGTH_BYTES/sizeof(uint8_t) + 1];
} lb;
int i;
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
uint64_t x;
#else
uint32_t x;
#endif
if (linelen*width > MAX_LINE_LENGTH_BYTES)
linelen = MAX_LINE_LENGTH_BYTES / width;
if (linelen < 1)
linelen = DEFAULT_LINE_LENGTH_BYTES / width;
while (count) {
uint thislinelen = linelen;
printf("%08lx:", addr);
/* check for overflow condition */
if (count < thislinelen)
thislinelen = count;
/* Copy from memory into linebuf and print hex values */
for (i = 0; i < thislinelen; i++) {
if (width == 4)
x = lb.ui[i] = *(volatile uint32_t *)data;
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
else if (width == 8)
x = lb.uq[i] = *(volatile uint64_t *)data;
#endif
else if (width == 2)
x = lb.us[i] = *(volatile uint16_t *)data;
else
x = lb.uc[i] = *(volatile uint8_t *)data;
#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
printf(" %0*" PRIx64, width * 2, x);
#else
printf(" %0*x", width * 2, x);
#endif
data += width;
}
while (thislinelen < linelen) {
/* fill line with whitespace for nice ASCII print */
for (i=0; i<width*2+1; i++)
puts(" ");
linelen--;
}
/* Print data in ASCII characters */
for (i = 0; i < thislinelen * width; i++) {
if (!isprint(lb.uc[i]) || lb.uc[i] >= 0x80)
lb.uc[i] = '.';
}
lb.uc[i] = '\0';
printf(" %s\n", lb.uc);
/* update references */
addr += thislinelen * width;
count -= thislinelen;
if (ctrlc())
return -1;
}
return 0;
}