xref: /openbmc/u-boot/cmd/fat.c (revision 13bdce8f8cadf07bc81d7000a04e48f3028de543)
1  /*
2   * (C) Copyright 2002
3   * Richard Jones, rjones@nexus-tech.net
4   *
5   * SPDX-License-Identifier:	GPL-2.0+
6   */
7  
8  /*
9   * Boot support
10   */
11  #include <common.h>
12  #include <command.h>
13  #include <s_record.h>
14  #include <net.h>
15  #include <ata.h>
16  #include <asm/io.h>
17  #include <mapmem.h>
18  #include <part.h>
19  #include <fat.h>
20  #include <fs.h>
21  
22  int do_fat_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
23  {
24  	return do_size(cmdtp, flag, argc, argv, FS_TYPE_FAT);
25  }
26  
27  U_BOOT_CMD(
28  	fatsize,	4,	0,	do_fat_size,
29  	"determine a file's size",
30  	"<interface> <dev[:part]> <filename>\n"
31  	"    - Find file 'filename' from 'dev' on 'interface'\n"
32  	"      and determine its size."
33  );
34  
35  int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
36  {
37  	return do_load(cmdtp, flag, argc, argv, FS_TYPE_FAT);
38  }
39  
40  
41  U_BOOT_CMD(
42  	fatload,	7,	0,	do_fat_fsload,
43  	"load binary file from a dos filesystem",
44  	"<interface> [<dev[:part]> [<addr> [<filename> [bytes [pos]]]]]\n"
45  	"    - Load binary file 'filename' from 'dev' on 'interface'\n"
46  	"      to address 'addr' from dos filesystem.\n"
47  	"      'pos' gives the file position to start loading from.\n"
48  	"      If 'pos' is omitted, 0 is used. 'pos' requires 'bytes'.\n"
49  	"      'bytes' gives the size to load. If 'bytes' is 0 or omitted,\n"
50  	"      the load stops on end of file.\n"
51  	"      If either 'pos' or 'bytes' are not aligned to\n"
52  	"      ARCH_DMA_MINALIGN then a misaligned buffer warning will\n"
53  	"      be printed and performance will suffer for the load."
54  );
55  
56  static int do_fat_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
57  {
58  	return do_ls(cmdtp, flag, argc, argv, FS_TYPE_FAT);
59  }
60  
61  U_BOOT_CMD(
62  	fatls,	4,	1,	do_fat_ls,
63  	"list files in a directory (default /)",
64  	"<interface> [<dev[:part]>] [directory]\n"
65  	"    - list files from 'dev' on 'interface' in a 'directory'"
66  );
67  
68  static int do_fat_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc,
69  			 char * const argv[])
70  {
71  	int dev, part;
72  	struct blk_desc *dev_desc;
73  	disk_partition_t info;
74  
75  	if (argc < 2) {
76  		printf("usage: fatinfo <interface> [<dev[:part]>]\n");
77  		return 0;
78  	}
79  
80  	part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
81  	if (part < 0)
82  		return 1;
83  
84  	dev = dev_desc->devnum;
85  	if (fat_set_blk_dev(dev_desc, &info) != 0) {
86  		printf("\n** Unable to use %s %d:%d for fatinfo **\n",
87  			argv[1], dev, part);
88  		return 1;
89  	}
90  	return file_fat_detectfs();
91  }
92  
93  U_BOOT_CMD(
94  	fatinfo,	3,	1,	do_fat_fsinfo,
95  	"print information about filesystem",
96  	"<interface> [<dev[:part]>]\n"
97  	"    - print information about filesystem from 'dev' on 'interface'"
98  );
99  
100  #ifdef CONFIG_FAT_WRITE
101  static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag,
102  		int argc, char * const argv[])
103  {
104  	loff_t size;
105  	int ret;
106  	unsigned long addr;
107  	unsigned long count;
108  	struct blk_desc *dev_desc = NULL;
109  	disk_partition_t info;
110  	int dev = 0;
111  	int part = 1;
112  	void *buf;
113  
114  	if (argc < 5)
115  		return cmd_usage(cmdtp);
116  
117  	part = blk_get_device_part_str(argv[1], argv[2], &dev_desc, &info, 1);
118  	if (part < 0)
119  		return 1;
120  
121  	dev = dev_desc->devnum;
122  
123  	if (fat_set_blk_dev(dev_desc, &info) != 0) {
124  		printf("\n** Unable to use %s %d:%d for fatwrite **\n",
125  			argv[1], dev, part);
126  		return 1;
127  	}
128  	addr = simple_strtoul(argv[3], NULL, 16);
129  	count = (argc <= 5) ? 0 : simple_strtoul(argv[5], NULL, 16);
130  
131  	buf = map_sysmem(addr, count);
132  	ret = file_fat_write(argv[4], buf, 0, count, &size);
133  	unmap_sysmem(buf);
134  	if (ret < 0) {
135  		printf("\n** Unable to write \"%s\" from %s %d:%d **\n",
136  			argv[4], argv[1], dev, part);
137  		return 1;
138  	}
139  
140  	printf("%llu bytes written\n", size);
141  
142  	return 0;
143  }
144  
145  U_BOOT_CMD(
146  	fatwrite,	6,	0,	do_fat_fswrite,
147  	"write file into a dos filesystem",
148  	"<interface> <dev[:part]> <addr> <filename> [<bytes>]\n"
149  	"    - write file 'filename' from the address 'addr' in RAM\n"
150  	"      to 'dev' on 'interface'"
151  );
152  #endif
153