fat.c 4.3 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. int do_fat_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  14. {
  15. return do_size(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  16. }
  17. U_BOOT_CMD(
  18. fatsize, 4, 0, do_fat_size,
  19. "determine a file's size",
  20. "<interface> <dev[:part]> <filename>\n"
  21. " - Find file 'filename' from 'dev' on 'interface'\n"
  22. " and determine its size."
  23. );
  24. int do_fat_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  25. {
  26. return do_load(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  27. }
  28. U_BOOT_CMD(
  29. fatload, 7, 0, do_fat_fsload,
  30. "load binary file from a dos filesystem",
  31. "<interface> [<dev[:part]> [<addr> [<filename> [bytes [pos]]]]]\n"
  32. " - Load binary file 'filename' from 'dev' on 'interface'\n"
  33. " to address 'addr' from dos filesystem.\n"
  34. " 'pos' gives the file position to start loading from.\n"
  35. " If 'pos' is omitted, 0 is used. 'pos' requires 'bytes'.\n"
  36. " 'bytes' gives the size to load. If 'bytes' is 0 or omitted,\n"
  37. " the load stops on end of file.\n"
  38. " If either 'pos' or 'bytes' are not aligned to\n"
  39. " ARCH_DMA_MINALIGN then a misaligned buffer warning will\n"
  40. " be printed and performance will suffer for the load."
  41. );
  42. static int do_fat_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  43. {
  44. return do_ls(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  45. }
  46. U_BOOT_CMD(
  47. fatls, 4, 1, do_fat_ls,
  48. "list files in a directory (default /)",
  49. "<interface> [<dev[:part]>] [directory]\n"
  50. " - list files from 'dev' on 'interface' in a 'directory'"
  51. );
  52. static int do_fat_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc,
  53. char * const argv[])
  54. {
  55. int dev, part;
  56. struct blk_desc *dev_desc;
  57. disk_partition_t info;
  58. if (argc < 2) {
  59. printf("usage: fatinfo <interface> [<dev[:part]>]\n");
  60. return 0;
  61. }
  62. part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
  63. if (part < 0)
  64. return 1;
  65. dev = dev_desc->devnum;
  66. if (fat_set_blk_dev(dev_desc, &info) != 0) {
  67. printf("\n** Unable to use %s %d:%d for fatinfo **\n",
  68. argv[1], dev, part);
  69. return 1;
  70. }
  71. return file_fat_detectfs();
  72. }
  73. U_BOOT_CMD(
  74. fatinfo, 3, 1, do_fat_fsinfo,
  75. "print information about filesystem",
  76. "<interface> [<dev[:part]>]\n"
  77. " - print information about filesystem from 'dev' on 'interface'"
  78. );
  79. #ifdef CONFIG_FAT_WRITE
  80. static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag,
  81. int argc, char * const argv[])
  82. {
  83. loff_t size;
  84. int ret;
  85. unsigned long addr;
  86. unsigned long count;
  87. long offset;
  88. struct blk_desc *dev_desc = NULL;
  89. disk_partition_t info;
  90. int dev = 0;
  91. int part = 1;
  92. void *buf;
  93. if (argc < 5)
  94. return cmd_usage(cmdtp);
  95. part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
  96. if (part < 0)
  97. return 1;
  98. dev = dev_desc->devnum;
  99. if (fat_set_blk_dev(dev_desc, &info) != 0) {
  100. printf("\n** Unable to use %s %d:%d for fatwrite **\n",
  101. argv[1], dev, part);
  102. return 1;
  103. }
  104. addr = simple_strtoul(argv[3], NULL, 16);
  105. count = (argc <= 5) ? 0 : simple_strtoul(argv[5], NULL, 16);
  106. /* offset should be a hex, but "-1" is allowed */
  107. offset = (argc <= 6) ? 0 : simple_strtol(argv[6], NULL, 16);
  108. buf = map_sysmem(addr, count);
  109. ret = file_fat_write(argv[4], buf, offset, count, &size);
  110. unmap_sysmem(buf);
  111. if (ret < 0) {
  112. printf("\n** Unable to write \"%s\" from %s %d:%d **\n",
  113. argv[4], argv[1], dev, part);
  114. return 1;
  115. }
  116. printf("%llu bytes written\n", size);
  117. return 0;
  118. }
  119. U_BOOT_CMD(
  120. fatwrite, 7, 0, do_fat_fswrite,
  121. "write file into a dos filesystem",
  122. "<interface> <dev[:part]> <addr> <filename> [<bytes> [<offset>]]\n"
  123. " - write file 'filename' from the address 'addr' in RAM\n"
  124. " to 'dev' on 'interface'"
  125. );
  126. static int do_fat_rm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  127. {
  128. return do_rm(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  129. }
  130. U_BOOT_CMD(
  131. fatrm, 4, 1, do_fat_rm,
  132. "delete a file",
  133. "<interface> [<dev[:part]>] <filename>\n"
  134. " - delete a file from 'dev' on 'interface'"
  135. );
  136. static int do_fat_mkdir(cmd_tbl_t *cmdtp, int flag, int argc,
  137. char * const argv[])
  138. {
  139. return do_mkdir(cmdtp, flag, argc, argv, FS_TYPE_FAT);
  140. }
  141. U_BOOT_CMD(
  142. fatmkdir, 4, 1, do_fat_mkdir,
  143. "create a directory",
  144. "<interface> [<dev[:part]>] <directory>\n"
  145. " - create a directory in 'dev' on 'interface'"
  146. );
  147. #endif