lib/display_options.c

   1 /*
   2  * (C) Copyright 2000-2002
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <config.h>
   9 #include <common.h>
  10 #include <div64.h>
  11 #include <inttypes.h>
  12 #include <version.h>
  13 #include <linux/ctype.h>
  14 #include <asm/io.h>
  15
  16 int display_options (void)
  17 {
  18 #if defined(BUILD_TAG)
  19         printf ("\n\n%s, Build: %s\n\n", version_string, BUILD_TAG);
  20 #else
  21         printf ("\n\n%s\n\n", version_string);
  22 #endif
  23         return 0;
  24 }
  25
  26 void print_freq(uint64_t freq, const char *s)
  27 {
  28         unsigned long m = 0;
  29         uint32_t f;
  30         static const char names[] = {'G', 'M', 'K'};
  31         unsigned long d = 1e9;
  32         char c = 0;
  33         unsigned int i;
  34
  35         for (i = 0; i < ARRAY_SIZE(names); i++, d /= 1000) {
  36                 if (freq >= d) {
  37                         c = names[i];
  38                         break;
  39                 }
  40         }
  41
  42         if (!c) {
  43                 printf("%" PRIu64 " Hz%s", freq, s);
  44                 return;
  45         }
  46
  47         f = do_div(freq, d);
  48
  49         /* If there's a remainder, show the first few digits */
  50         if (f) {
  51                 m = f;
  52                 while (m > 1000)
  53                         m /= 10;
  54                 while (m && !(m % 10))
  55                         m /= 10;
  56                 if (m >= 100)
  57                         m = (m / 10) + (m % 100 >= 50);
  58         }
  59
  60         printf("%lu", (unsigned long) freq);
  61         if (m)
  62                 printf(".%ld", m);
  63         printf(" %cHz%s", c, s);
  64 }
  65
  66 void print_size(uint64_t size, const char *s)
  67 {
  68         unsigned long m = 0, n;
  69         uint64_t f;
  70         static const char names[] = {'E', 'P', 'T', 'G', 'M', 'K'};
  71         unsigned long d = 10 * ARRAY_SIZE(names);
  72         char c = 0;
  73         unsigned int i;
  74
  75         for (i = 0; i < ARRAY_SIZE(names); i++, d -= 10) {
  76                 if (size >> d) {
  77                         c = names[i];
  78                         break;
  79                 }
  80         }
  81
  82         if (!c) {
  83                 printf("%" PRIu64 " Bytes%s", size, s);
  84                 return;
  85         }
  86
  87         n = size >> d;
  88         f = size & ((1ULL << d) - 1);
  89
  90         /* If there's a remainder, deal with it */
  91         if (f) {
  92                 m = (10ULL * f + (1ULL << (d - 1))) >> d;
  93
  94                 if (m >= 10) {
  95                         m -= 10;
  96                         n += 1;
  97                 }
  98         }
  99
 100         printf ("%lu", n);
 101         if (m) {
 102                 printf (".%ld", m);
 103         }
 104         printf (" %ciB%s", c, s);
 105 }
 106
 107 #define MAX_LINE_LENGTH_BYTES (64)
 108 #define DEFAULT_LINE_LENGTH_BYTES (16)
 109 int print_buffer(ulong addr, const void *data, uint width, uint count,
 110                  uint linelen)
 111 {
 112         /* linebuf as a union causes proper alignment */
 113         union linebuf {
 114 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
 115                 uint64_t uq[MAX_LINE_LENGTH_BYTES/sizeof(uint64_t) + 1];
 116 #endif
 117                 uint32_t ui[MAX_LINE_LENGTH_BYTES/sizeof(uint32_t) + 1];
 118                 uint16_t us[MAX_LINE_LENGTH_BYTES/sizeof(uint16_t) + 1];
 119                 uint8_t  uc[MAX_LINE_LENGTH_BYTES/sizeof(uint8_t) + 1];
 120         } lb;
 121         int i;
 122 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
 123         uint64_t __maybe_unused x;
 124 #else
 125         uint32_t __maybe_unused x;
 126 #endif
 127
 128         if (linelen*width > MAX_LINE_LENGTH_BYTES)
 129                 linelen = MAX_LINE_LENGTH_BYTES / width;
 130         if (linelen < 1)
 131                 linelen = DEFAULT_LINE_LENGTH_BYTES / width;
 132
 133         while (count) {
 134                 uint thislinelen = linelen;
 135                 printf("%08lx:", addr);
 136
 137                 /* check for overflow condition */
 138                 if (count < thislinelen)
 139                         thislinelen = count;
 140
 141                 /* Copy from memory into linebuf and print hex values */
 142                 for (i = 0; i < thislinelen; i++) {
 143                         if (width == 4)
 144                                 x = lb.ui[i] = *(volatile uint32_t *)data;
 145 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
 146                         else if (width == 8)
 147                                 x = lb.uq[i] = *(volatile uint64_t *)data;
 148 #endif
 149                         else if (width == 2)
 150                                 x = lb.us[i] = *(volatile uint16_t *)data;
 151                         else
 152                                 x = lb.uc[i] = *(volatile uint8_t *)data;
 153 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
 154                         printf(" %0*llx", width * 2, (long long)x);
 155 #else
 156                         printf(" %0*x", width * 2, x);
 157 #endif
 158                         data += width;
 159                 }
 160
 161                 while (thislinelen < linelen) {
 162                         /* fill line with whitespace for nice ASCII print */
 163                         for (i=0; i<width*2+1; i++)
 164                                 puts(" ");
 165                         linelen--;
 166                 }
 167
 168                 /* Print data in ASCII characters */
 169                 for (i = 0; i < thislinelen * width; i++) {
 170                         if (!isprint(lb.uc[i]) || lb.uc[i] >= 0x80)
 171                                 lb.uc[i] = '.';
 172                 }
 173                 lb.uc[i] = '\0';
 174                 printf("    %s\n", lb.uc);
 175
 176                 /* update references */
 177                 addr += thislinelen * width;
 178                 count -= thislinelen;
 179
 180                 if (ctrlc())
 181                         return -1;
 182         }
 183
 184         return 0;
 185 }