display_options.c 4.2 KB

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