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