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c95c4280d7
Printing a buffer is a darn useful thing. Move the buffer print code into print_buffer() in lib_generic/ Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
137 lines
3.4 KiB
C
137 lines
3.4 KiB
C
/*
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* (C) Copyright 2000-2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <config.h>
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#include <common.h>
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#include <linux/ctype.h>
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#include <asm/io.h>
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int display_options (void)
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{
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extern char version_string[];
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#if defined(BUILD_TAG)
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printf ("\n\n%s, Build: %s\n\n", version_string, BUILD_TAG);
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#else
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printf ("\n\n%s\n\n", version_string);
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#endif
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return 0;
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}
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/*
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* print sizes as "xxx kB", "xxx.y kB", "xxx MB" or "xxx.y MB" as needed;
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* allow for optional trailing string (like "\n")
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*/
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void print_size (ulong size, const char *s)
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{
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ulong m, n;
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ulong d = 1 << 20; /* 1 MB */
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char c = 'M';
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if (size < d) { /* print in kB */
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c = 'k';
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d = 1 << 10;
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}
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n = size / d;
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m = (10 * (size - (n * d)) + (d / 2) ) / d;
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if (m >= 10) {
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m -= 10;
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n += 1;
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}
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printf ("%2ld", n);
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if (m) {
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printf (".%ld", m);
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}
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printf (" %cB%s", c, s);
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}
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/*
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* Print data buffer in hex and ascii form to the terminal.
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*
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* data reads are buffered so that each memory address is only read once.
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* Useful when displaying the contents of volatile registers.
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*
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* parameters:
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* addr: Starting address to display at start of line
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* data: pointer to data buffer
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* width: data value width. May be 1, 2, or 4.
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* count: number of values to display
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* linelen: Number of values to print per line; specify 0 for default length
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*/
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#define MAX_LINE_LENGTH_BYTES (64)
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#define DEFAULT_LINE_LENGTH_BYTES (16)
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int print_buffer (ulong addr, void* data, uint width, uint count, uint linelen)
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{
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uint8_t linebuf[MAX_LINE_LENGTH_BYTES];
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uint32_t *uip = (void*)linebuf;
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uint16_t *usp = (void*)linebuf;
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uint8_t *ucp = (void*)linebuf;
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int i;
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if (linelen*width > MAX_LINE_LENGTH_BYTES)
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linelen = MAX_LINE_LENGTH_BYTES / width;
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if (linelen < 1)
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linelen = DEFAULT_LINE_LENGTH_BYTES / width;
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while (count) {
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printf("%08lx:", addr);
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/* check for overflow condition */
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if (count < linelen)
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linelen = count;
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/* Copy from memory into linebuf and print hex values */
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for (i = 0; i < linelen; i++) {
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if (width == 4) {
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uip[i] = *(volatile uint32_t *)data;
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printf(" %08x", uip[i]);
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} else if (width == 2) {
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usp[i] = *(volatile uint16_t *)data;
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printf(" %04x", usp[i]);
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} else {
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ucp[i] = *(volatile uint8_t *)data;
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printf(" %02x", ucp[i]);
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}
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data += width;
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}
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/* Print data in ASCII characters */
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puts(" ");
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for (i = 0; i < linelen * width; i++)
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putc(isprint(ucp[i]) && (ucp[i] < 0x80) ? ucp[i] : '.');
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putc ('\n');
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/* update references */
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addr += linelen * width;
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count -= linelen;
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if (ctrlc())
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return -1;
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}
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return 0;
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}
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