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