fat.c 4.4 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * (C) Copyright 2002
  4. * Richard Jones, rjones@nexus-tech.net
  5. */
  6. /*
  7. * Boot support
  8. */
  9. #include <common.h>
  10. #include <command.h>
  11. #include <mapmem.h>
  12. #include <fat.h>
  13. #include <fs.h>
  14. #include <part.h>
  15. #include <asm/cache.h>
  16. int do_fat_size(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  17. {
  18. return do_size(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  19. }
  20. U_BOOT_CMD(
  21. fatsize, 4, 0, do_fat_size,
  22. "determine a file's size",
  23. "<interface> <dev[:part]> <filename>\n"
  24. " - Find file 'filename' from 'dev' on 'interface'\n"
  25. " and determine its size."
  26. );
  27. int do_fat_fsload(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  28. {
  29. return do_load(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  30. }
  31. U_BOOT_CMD(
  32. fatload, 7, 0, do_fat_fsload,
  33. "load binary file from a dos filesystem",
  34. "<interface> [<dev[:part]> [<addr> [<filename> [bytes [pos]]]]]\n"
  35. " - Load binary file 'filename' from 'dev' on 'interface'\n"
  36. " to address 'addr' from dos filesystem.\n"
  37. " 'pos' gives the file position to start loading from.\n"
  38. " If 'pos' is omitted, 0 is used. 'pos' requires 'bytes'.\n"
  39. " 'bytes' gives the size to load. If 'bytes' is 0 or omitted,\n"
  40. " the load stops on end of file.\n"
  41. " If either 'pos' or 'bytes' are not aligned to\n"
  42. " ARCH_DMA_MINALIGN then a misaligned buffer warning will\n"
  43. " be printed and performance will suffer for the load."
  44. );
  45. static int do_fat_ls(struct cmd_tbl *cmdtp, int flag, int argc,
  46. char *const argv[])
  47. {
  48. return do_ls(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  49. }
  50. U_BOOT_CMD(
  51. fatls, 4, 1, do_fat_ls,
  52. "list files in a directory (default /)",
  53. "<interface> [<dev[:part]>] [directory]\n"
  54. " - list files from 'dev' on 'interface' in a 'directory'"
  55. );
  56. static int do_fat_fsinfo(struct cmd_tbl *cmdtp, int flag, int argc,
  57. char *const argv[])
  58. {
  59. int dev, part;
  60. struct blk_desc *dev_desc;
  61. struct disk_partition info;
  62. if (argc < 2) {
  63. printf("usage: fatinfo <interface> [<dev[:part]>]\n");
  64. return 0;
  65. }
  66. part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
  67. if (part < 0)
  68. return 1;
  69. dev = dev_desc->devnum;
  70. if (fat_set_blk_dev(dev_desc, &info) != 0) {
  71. printf("\n** Unable to use %s %d:%d for fatinfo **\n",
  72. argv[1], dev, part);
  73. return 1;
  74. }
  75. return file_fat_detectfs();
  76. }
  77. U_BOOT_CMD(
  78. fatinfo, 3, 1, do_fat_fsinfo,
  79. "print information about filesystem",
  80. "<interface> [<dev[:part]>]\n"
  81. " - print information about filesystem from 'dev' on 'interface'"
  82. );
  83. #ifdef CONFIG_FAT_WRITE
  84. static int do_fat_fswrite(struct cmd_tbl *cmdtp, int flag, int argc,
  85. char *const argv[])
  86. {
  87. loff_t size;
  88. int ret;
  89. unsigned long addr;
  90. unsigned long count;
  91. long offset;
  92. struct blk_desc *dev_desc = NULL;
  93. struct disk_partition info;
  94. int dev = 0;
  95. int part = 1;
  96. void *buf;
  97. if (argc < 5)
  98. return cmd_usage(cmdtp);
  99. part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
  100. if (part < 0)
  101. return 1;
  102. dev = dev_desc->devnum;
  103. if (fat_set_blk_dev(dev_desc, &info) != 0) {
  104. printf("\n** Unable to use %s %d:%d for fatwrite **\n",
  105. argv[1], dev, part);
  106. return 1;
  107. }
  108. addr = simple_strtoul(argv[3], NULL, 16);
  109. count = (argc <= 5) ? 0 : simple_strtoul(argv[5], NULL, 16);
  110. /* offset should be a hex, but "-1" is allowed */
  111. offset = (argc <= 6) ? 0 : simple_strtol(argv[6], NULL, 16);
  112. buf = map_sysmem(addr, count);
  113. ret = file_fat_write(argv[4], buf, offset, count, &size);
  114. unmap_sysmem(buf);
  115. if (ret < 0) {
  116. printf("\n** Unable to write \"%s\" from %s %d:%d **\n",
  117. argv[4], argv[1], dev, part);
  118. return 1;
  119. }
  120. printf("%llu bytes written\n", size);
  121. return 0;
  122. }
  123. U_BOOT_CMD(
  124. fatwrite, 7, 0, do_fat_fswrite,
  125. "write file into a dos filesystem",
  126. "<interface> <dev[:part]> <addr> <filename> [<bytes> [<offset>]]\n"
  127. " - write file 'filename' from the address 'addr' in RAM\n"
  128. " to 'dev' on 'interface'"
  129. );
  130. static int do_fat_rm(struct cmd_tbl *cmdtp, int flag, int argc,
  131. char *const argv[])
  132. {
  133. return do_rm(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  134. }
  135. U_BOOT_CMD(
  136. fatrm, 4, 1, do_fat_rm,
  137. "delete a file",
  138. "<interface> [<dev[:part]>] <filename>\n"
  139. " - delete a file from 'dev' on 'interface'"
  140. );
  141. static int do_fat_mkdir(struct cmd_tbl *cmdtp, int flag, int argc,
  142. char *const argv[])
  143. {
  144. return do_mkdir(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  145. }
  146. U_BOOT_CMD(
  147. fatmkdir, 4, 1, do_fat_mkdir,
  148. "create a directory",
  149. "<interface> [<dev[:part]>] <directory>\n"
  150. " - create a directory in 'dev' on 'interface'"
  151. );
  152. #endif