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, n;
  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         n = freq;
  49
  50         /* If there's a remainder, show the first few digits */
  51         if (f) {
  52                 m = f;
  53                 while (m > 1000)
  54                         m /= 10;
  55                 while (m && !(m % 10))
  56                         m /= 10;
  57                 if (m >= 100)
  58                         m = (m / 10) + (m % 100 >= 50);
  59         }
  60
  61         printf("%lu", n);
  62         if (m)
  63                 printf(".%ld", m);
  64         printf(" %cHz%s", c, s);
  65 }
  66
  67 void print_size(uint64_t size, const char *s)
  68 {
  69         unsigned long m = 0, n;
  70         uint64_t f;
  71         static const char names[] = {'E', 'P', 'T', 'G', 'M', 'K'};
  72         unsigned long d = 10 * ARRAY_SIZE(names);
  73         char c = 0;
  74         unsigned int i;
  75
  76         for (i = 0; i < ARRAY_SIZE(names); i++, d -= 10) {
  77                 if (size >> d) {
  78                         c = names[i];
  79                         break;
  80                 }
  81         }
  82
  83         if (!c) {
  84                 printf("%" PRIu64 " Bytes%s", size, s);
  85                 return;
  86         }
  87
  88         n = size >> d;
  89         f = size & ((1ULL << d) - 1);
  90
  91         /* If there's a remainder, deal with it */
  92         if (f) {
  93                 m = (10ULL * f + (1ULL << (d - 1))) >> d;
  94
  95                 if (m >= 10) {
  96                         m -= 10;
  97                         n += 1;
  98                 }
  99         }
 100
 101         printf ("%lu", n);
 102         if (m) {
 103                 printf (".%ld", m);
 104         }
 105         printf (" %ciB%s", c, s);
 106 }
 107
 108 #define MAX_LINE_LENGTH_BYTES (64)
 109 #define DEFAULT_LINE_LENGTH_BYTES (16)
 110 int print_buffer(ulong addr, const void *data, uint width, uint count,
 111                  uint linelen)
 112 {
 113         /* linebuf as a union causes proper alignment */
 114         union linebuf {
 115 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
 116                 uint64_t uq[MAX_LINE_LENGTH_BYTES/sizeof(uint64_t) + 1];
 117 #endif
 118                 uint32_t ui[MAX_LINE_LENGTH_BYTES/sizeof(uint32_t) + 1];
 119                 uint16_t us[MAX_LINE_LENGTH_BYTES/sizeof(uint16_t) + 1];
 120                 uint8_t  uc[MAX_LINE_LENGTH_BYTES/sizeof(uint8_t) + 1];
 121         } lb;
 122         int i;
 123 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
 124         uint64_t x;
 125 #else
 126         uint32_t x;
 127 #endif
 128
 129         if (linelen*width > MAX_LINE_LENGTH_BYTES)
 130                 linelen = MAX_LINE_LENGTH_BYTES / width;
 131         if (linelen < 1)
 132                 linelen = DEFAULT_LINE_LENGTH_BYTES / width;
 133
 134         while (count) {
 135                 uint thislinelen = linelen;
 136                 printf("%08lx:", addr);
 137
 138                 /* check for overflow condition */
 139                 if (count < thislinelen)
 140                         thislinelen = count;
 141
 142                 /* Copy from memory into linebuf and print hex values */
 143                 for (i = 0; i < thislinelen; i++) {
 144                         if (width == 4)
 145                                 x = lb.ui[i] = *(volatile uint32_t *)data;
 146 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
 147                         else if (width == 8)
 148                                 x = lb.uq[i] = *(volatile uint64_t *)data;
 149 #endif
 150                         else if (width == 2)
 151                                 x = lb.us[i] = *(volatile uint16_t *)data;
 152                         else
 153                                 x = lb.uc[i] = *(volatile uint8_t *)data;
 154 #ifdef CONFIG_SYS_SUPPORT_64BIT_DATA
 155                         printf(" %0*" PRIx64, width * 2, x);
 156 #else
 157                         printf(" %0*x", width * 2, x);
 158 #endif
 159                         data += width;
 160                 }
 161
 162                 while (thislinelen < linelen) {
 163                         /* fill line with whitespace for nice ASCII print */
 164                         for (i=0; i<width*2+1; i++)
 165                                 puts(" ");
 166                         linelen--;
 167                 }
 168
 169                 /* Print data in ASCII characters */
 170                 for (i = 0; i < thislinelen * width; i++) {
 171                         if (!isprint(lb.uc[i]) || lb.uc[i] >= 0x80)
 172                                 lb.uc[i] = '.';
 173                 }
 174                 lb.uc[i] = '\0';
 175                 printf("    %s\n", lb.uc);
 176
 177                 /* update references */
 178                 addr += thislinelen * width;
 179                 count -= thislinelen;
 180
 181                 if (ctrlc())
 182                         return -1;
 183         }
 184
 185         return 0;
 186 }