lib/display_options.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2000-2002
   4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5  */
   6
   7 #include <common.h>
   8 #include <console.h>
   9 #include <div64.h>
  10 #include <version.h>
  11 #include <linux/ctype.h>
  12 #include <asm/io.h>
  13
  14 char *display_options_get_banner_priv(bool newlines, const char *build_tag,
  15                                       char *buf, int size)
  16 {
  17         int len;
  18
  19         len = snprintf(buf, size, "%s%s", newlines ? "\n\n" : "",
  20                        version_string);
  21         if (build_tag && len < size)
  22                 len += snprintf(buf + len, size - len, ", Build: %s",
  23                                 build_tag);
  24         if (len > size - 3)
  25                 len = size - 3;
  26         if (len < 0)
  27                 len = 0;
  28         snprintf(buf + len, size - len, "\n\n");
  29
  30         return buf;
  31 }
  32
  33 #ifndef BUILD_TAG
  34 #define BUILD_TAG NULL
  35 #endif
  36
  37 char *display_options_get_banner(bool newlines, char *buf, int size)
  38 {
  39         return display_options_get_banner_priv(newlines, BUILD_TAG, buf, size);
  40 }
  41
  42 int display_options(void)
  43 {
  44         char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
  45
  46         display_options_get_banner(true, buf, sizeof(buf));
  47         printf("%s", buf);
  48
  49         return 0;
  50 }
  51
  52 void print_freq(uint64_t freq, const char *s)
  53 {
  54         unsigned long m = 0;
  55         uint32_t f;
  56         static const char names[] = {'G', 'M', 'K'};
  57         unsigned long d = 1e9;
  58         char c = 0;
  59         unsigned int i;
  60
  61         for (i = 0; i < ARRAY_SIZE(names); i++, d /= 1000) {
  62                 if (freq >= d) {
  63                         c = names[i];
  64                         break;
  65                 }
  66         }
  67
  68         if (!c) {
  69                 printf("%llu Hz%s", freq, s);
  70                 return;
  71         }
  72
  73         f = do_div(freq, d);
  74
  75         /* If there's a remainder, show the first few digits */
  76         if (f) {
  77                 m = f;
  78                 while (m > 1000)
  79                         m /= 10;
  80                 while (m && !(m % 10))
  81                         m /= 10;
  82                 if (m >= 100)
  83                         m = (m / 10) + (m % 100 >= 50);
  84         }
  85
  86         printf("%lu", (unsigned long) freq);
  87         if (m)
  88                 printf(".%ld", m);
  89         printf(" %cHz%s", c, s);
  90 }
  91
  92 void print_size(uint64_t size, const char *s)
  93 {
  94         unsigned long m = 0, n;
  95         uint64_t f;
  96         static const char names[] = {'E', 'P', 'T', 'G', 'M', 'K'};
  97         unsigned long d = 10 * ARRAY_SIZE(names);
  98         char c = 0;
  99         unsigned int i;
 100
 101         for (i = 0; i < ARRAY_SIZE(names); i++, d -= 10) {
 102                 if (size >> d) {
 103                         c = names[i];
 104                         break;
 105                 }
 106         }
 107
 108         if (!c) {
 109                 printf("%llu Bytes%s", size, s);
 110                 return;
 111         }
 112
 113         n = size >> d;
 114         f = size & ((1ULL << d) - 1);
 115
 116         /* If there's a remainder, deal with it */
 117         if (f) {
 118                 m = (10ULL * f + (1ULL << (d - 1))) >> d;
 119
 120                 if (m >= 10) {
 121                         m -= 10;
 122                         n += 1;
 123                 }
 124         }
 125
 126         printf ("%lu", n);
 127         if (m) {
 128                 printf (".%ld", m);
 129         }
 130         printf (" %ciB%s", c, s);
 131 }
 132
 133 #define MAX_LINE_LENGTH_BYTES (64)
 134 #define DEFAULT_LINE_LENGTH_BYTES (16)
 135 int print_buffer(ulong addr, const void *data, uint width, uint count,
 136                  uint linelen)
 137 {
 138         /* linebuf as a union causes proper alignment */
 139         union linebuf {
 140 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
 141                 uint64_t uq[MAX_LINE_LENGTH_BYTES/sizeof(uint64_t) + 1];
 142 #endif
 143                 uint32_t ui[MAX_LINE_LENGTH_BYTES/sizeof(uint32_t) + 1];
 144                 uint16_t us[MAX_LINE_LENGTH_BYTES/sizeof(uint16_t) + 1];
 145                 uint8_t  uc[MAX_LINE_LENGTH_BYTES/sizeof(uint8_t) + 1];
 146         } lb;
 147         int i;
 148 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
 149         uint64_t __maybe_unused x;
 150 #else
 151         uint32_t __maybe_unused x;
 152 #endif
 153
 154         if (linelen*width > MAX_LINE_LENGTH_BYTES)
 155                 linelen = MAX_LINE_LENGTH_BYTES / width;
 156         if (linelen < 1)
 157                 linelen = DEFAULT_LINE_LENGTH_BYTES / width;
 158
 159         while (count) {
 160                 uint thislinelen = linelen;
 161                 printf("%08lx:", addr);
 162
 163                 /* check for overflow condition */
 164                 if (count < thislinelen)
 165                         thislinelen = count;
 166
 167                 /* Copy from memory into linebuf and print hex values */
 168                 for (i = 0; i < thislinelen; i++) {
 169                         if (width == 4)
 170                                 x = lb.ui[i] = *(volatile uint32_t *)data;
 171 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
 172                         else if (width == 8)
 173                                 x = lb.uq[i] = *(volatile uint64_t *)data;
 174 #endif
 175                         else if (width == 2)
 176                                 x = lb.us[i] = *(volatile uint16_t *)data;
 177                         else
 178                                 x = lb.uc[i] = *(volatile uint8_t *)data;
 179 #if defined(CONFIG_SPL_BUILD)
 180                         printf(" %x", (uint)x);
 181 #elif defined(CONFIG_SYS_SUPPORT_64BIT_DATA)
 182                         printf(" %0*llx", width * 2, (long long)x);
 183 #else
 184                         printf(" %0*x", width * 2, x);
 185 #endif
 186                         data += width;
 187                 }
 188
 189                 while (thislinelen < linelen) {
 190                         /* fill line with whitespace for nice ASCII print */
 191                         for (i=0; i<width*2+1; i++)
 192                                 puts(" ");
 193                         linelen--;
 194                 }
 195
 196                 /* Print data in ASCII characters */
 197                 for (i = 0; i < thislinelen * width; i++) {
 198                         if (!isprint(lb.uc[i]) || lb.uc[i] >= 0x80)
 199                                 lb.uc[i] = '.';
 200                 }
 201                 lb.uc[i] = '\0';
 202                 printf("    %s\n", lb.uc);
 203
 204                 /* update references */
 205                 addr += thislinelen * width;
 206                 count -= thislinelen;
 207
 208                 if (ctrlc())
 209                         return -1;
 210         }
 211
 212         return 0;
 213 }