1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2000-2002
10 #include <display_options.h>
12 #include <version_string.h>
13 #include <linux/ctype.h>
16 char *display_options_get_banner_priv(bool newlines, const char *build_tag,
21 len = snprintf(buf, size, "%s%s", newlines ? "\n\n" : "",
23 if (build_tag && len < size)
24 len += snprintf(buf + len, size - len, ", Build: %s",
30 snprintf(buf + len, size - len, "\n\n");
36 #define BUILD_TAG NULL
39 char *display_options_get_banner(bool newlines, char *buf, int size)
41 return display_options_get_banner_priv(newlines, BUILD_TAG, buf, size);
44 int display_options(void)
46 char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
48 display_options_get_banner(true, buf, sizeof(buf));
54 void print_freq(uint64_t freq, const char *s)
58 static const char names[] = {'G', 'M', 'k'};
59 unsigned long d = 1e9;
63 for (i = 0; i < ARRAY_SIZE(names); i++, d /= 1000) {
71 printf("%llu Hz%s", freq, s);
77 /* If there's a remainder, show the first few digits */
82 while (m && !(m % 10))
85 m = (m / 10) + (m % 100 >= 50);
88 printf("%lu", (unsigned long) freq);
91 printf(" %cHz%s", c, s);
94 void print_size(uint64_t size, const char *s)
96 unsigned long m = 0, n;
98 static const char names[] = {'E', 'P', 'T', 'G', 'M', 'K'};
99 unsigned long d = 10 * ARRAY_SIZE(names);
103 for (i = 0; i < ARRAY_SIZE(names); i++, d -= 10) {
112 * SPL tiny-printf is not capable for printing uint64_t.
113 * We have just checked that the size is small enought to fit
114 * unsigned int safely.
116 printf("%u Bytes%s", (unsigned int)size, s);
121 f = size & ((1ULL << d) - 1);
123 /* If there's a remainder, deal with it */
125 m = (10ULL * f + (1ULL << (d - 1))) >> d;
137 printf (" %ciB%s", c, s);
140 #define MAX_LINE_LENGTH_BYTES 64
141 #define DEFAULT_LINE_LENGTH_BYTES 16
143 int hexdump_line(ulong addr, const void *data, uint width, uint count,
144 uint linelen, char *out, int size)
146 /* linebuf as a union causes proper alignment */
148 uint64_t uq[MAX_LINE_LENGTH_BYTES/sizeof(uint64_t) + 1];
149 uint32_t ui[MAX_LINE_LENGTH_BYTES/sizeof(uint32_t) + 1];
150 uint16_t us[MAX_LINE_LENGTH_BYTES/sizeof(uint16_t) + 1];
151 uint8_t uc[MAX_LINE_LENGTH_BYTES/sizeof(uint8_t) + 1];
157 if (linelen * width > MAX_LINE_LENGTH_BYTES)
158 linelen = MAX_LINE_LENGTH_BYTES / width;
160 linelen = DEFAULT_LINE_LENGTH_BYTES / width;
163 * Check the size here so that we don't need to use snprintf(). This
164 * helps to reduce code size
166 if (size < HEXDUMP_MAX_BUF_LENGTH(linelen * width))
169 thislinelen = linelen;
170 out += sprintf(out, "%08lx:", addr);
172 /* check for overflow condition */
173 if (count < thislinelen)
176 /* Copy from memory into linebuf and print hex values */
177 for (i = 0; i < thislinelen; i++) {
179 x = lb.ui[i] = *(volatile uint32_t *)data;
180 else if (MEM_SUPPORT_64BIT_DATA && width == 8)
181 x = lb.uq[i] = *(volatile ulong *)data;
183 x = lb.us[i] = *(volatile uint16_t *)data;
185 x = lb.uc[i] = *(volatile uint8_t *)data;
186 if (CONFIG_IS_ENABLED(USE_TINY_PRINTF))
187 out += sprintf(out, " %x", (uint)x);
189 out += sprintf(out, " %0*lx", width * 2, x);
193 /* fill line with whitespace for nice ASCII print */
194 for (i = 0; i < (linelen - thislinelen) * (width * 2 + 1); i++)
197 /* Print data in ASCII characters */
198 for (i = 0; i < thislinelen * width; i++) {
199 if (!isprint(lb.uc[i]) || lb.uc[i] >= 0x80)
203 out += sprintf(out, " %s", lb.uc);
208 int print_buffer(ulong addr, const void *data, uint width, uint count,
211 if (linelen*width > MAX_LINE_LENGTH_BYTES)
212 linelen = MAX_LINE_LENGTH_BYTES / width;
214 linelen = DEFAULT_LINE_LENGTH_BYTES / width;
218 char buf[HEXDUMP_MAX_BUF_LENGTH(width * linelen)];
220 thislinelen = hexdump_line(addr, data, width, count, linelen,
222 assert(thislinelen >= 0);
226 /* update references */
227 data += thislinelen * width;
228 addr += thislinelen * width;
229 count -= thislinelen;
231 if (!IS_ENABLED(CONFIG_SPL_BUILD) && ctrlc())