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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
211 lines
4.3 KiB
C
211 lines
4.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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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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#include <common.h>
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#include <console.h>
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#include <div64.h>
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#include <inttypes.h>
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#include <version.h>
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#include <linux/ctype.h>
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#include <asm/io.h>
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char *display_options_get_banner_priv(bool newlines, const char *build_tag,
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char *buf, int size)
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{
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int len;
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len = snprintf(buf, size, "%s%s", newlines ? "\n\n" : "",
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version_string);
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if (build_tag && len < size)
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len += snprintf(buf + len, size - len, ", Build: %s",
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build_tag);
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if (len > size - 3)
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len = size - 3;
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strcpy(buf + len, "\n\n");
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return buf;
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}
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#ifndef BUILD_TAG
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#define BUILD_TAG NULL
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#endif
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char *display_options_get_banner(bool newlines, char *buf, int size)
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{
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return display_options_get_banner_priv(newlines, BUILD_TAG, buf, size);
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}
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int display_options(void)
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{
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char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
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display_options_get_banner(true, buf, sizeof(buf));
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printf("%s", buf);
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return 0;
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}
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void print_freq(uint64_t freq, const char *s)
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{
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unsigned long m = 0;
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uint32_t f;
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static const char names[] = {'G', 'M', 'K'};
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unsigned long d = 1e9;
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char c = 0;
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(names); i++, d /= 1000) {
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if (freq >= d) {
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c = names[i];
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break;
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}
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}
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if (!c) {
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printf("%" PRIu64 " Hz%s", freq, s);
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return;
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}
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f = do_div(freq, d);
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/* If there's a remainder, show the first few digits */
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if (f) {
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m = f;
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while (m > 1000)
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m /= 10;
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while (m && !(m % 10))
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m /= 10;
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if (m >= 100)
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m = (m / 10) + (m % 100 >= 50);
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}
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printf("%lu", (unsigned long) freq);
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if (m)
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printf(".%ld", m);
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printf(" %cHz%s", c, s);
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}
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void print_size(uint64_t size, const char *s)
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{
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unsigned long m = 0, n;
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uint64_t f;
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static const char names[] = {'E', 'P', 'T', 'G', 'M', 'K'};
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unsigned long d = 10 * ARRAY_SIZE(names);
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char c = 0;
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(names); i++, d -= 10) {
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if (size >> d) {
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c = names[i];
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break;
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}
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}
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if (!c) {
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printf("%" PRIu64 " Bytes%s", size, s);
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return;
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}
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n = size >> d;
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f = size & ((1ULL << d) - 1);
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/* If there's a remainder, deal with it */
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if (f) {
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m = (10ULL * f + (1ULL << (d - 1))) >> 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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}
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printf ("%lu", n);
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if (m) {
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printf (".%ld", m);
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}
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printf (" %ciB%s", c, s);
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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, const void *data, uint width, uint count,
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uint linelen)
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{
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/* linebuf as a union causes proper alignment */
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union linebuf {
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#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
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uint64_t uq[MAX_LINE_LENGTH_BYTES/sizeof(uint64_t) + 1];
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#endif
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uint32_t ui[MAX_LINE_LENGTH_BYTES/sizeof(uint32_t) + 1];
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uint16_t us[MAX_LINE_LENGTH_BYTES/sizeof(uint16_t) + 1];
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uint8_t uc[MAX_LINE_LENGTH_BYTES/sizeof(uint8_t) + 1];
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} lb;
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int i;
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#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
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uint64_t __maybe_unused x;
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#else
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uint32_t __maybe_unused x;
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#endif
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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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uint thislinelen = linelen;
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printf("%08lx:", addr);
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/* check for overflow condition */
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if (count < thislinelen)
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thislinelen = count;
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/* Copy from memory into linebuf and print hex values */
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for (i = 0; i < thislinelen; i++) {
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if (width == 4)
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x = lb.ui[i] = *(volatile uint32_t *)data;
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#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
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else if (width == 8)
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x = lb.uq[i] = *(volatile uint64_t *)data;
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#endif
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else if (width == 2)
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x = lb.us[i] = *(volatile uint16_t *)data;
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else
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x = lb.uc[i] = *(volatile uint8_t *)data;
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#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
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printf(" %0*llx", width * 2, (long long)x);
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#else
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printf(" %0*x", width * 2, x);
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#endif
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data += width;
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}
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while (thislinelen < linelen) {
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/* fill line with whitespace for nice ASCII print */
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for (i=0; i<width*2+1; i++)
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puts(" ");
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linelen--;
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}
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/* Print data in ASCII characters */
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for (i = 0; i < thislinelen * width; i++) {
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if (!isprint(lb.uc[i]) || lb.uc[i] >= 0x80)
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lb.uc[i] = '.';
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}
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lb.uc[i] = '\0';
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printf(" %s\n", lb.uc);
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/* update references */
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addr += thislinelen * width;
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count -= thislinelen;
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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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