avr32: use dlmalloc for DMA buffers
[oweals/u-boot.git] / common / cmd_part.c
1 /*
2  * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
3  *
4  * made from cmd_ext2, which was:
5  *
6  * (C) Copyright 2004
7  * esd gmbh <www.esd-electronics.com>
8  * Reinhard Arlt <reinhard.arlt@esd-electronics.com>
9  *
10  * made from cmd_reiserfs by
11  *
12  * (C) Copyright 2003 - 2004
13  * Sysgo Real-Time Solutions, AG <www.elinos.com>
14  * Pavel Bartusek <pba@sysgo.com>
15  *
16  * SPDX-License-Identifier:     GPL-2.0+
17  */
18
19 #include <common.h>
20 #include <config.h>
21 #include <command.h>
22 #include <part.h>
23 #include <vsprintf.h>
24
25 #ifndef CONFIG_PARTITION_UUIDS
26 #error CONFIG_PARTITION_UUIDS must be enabled for CONFIG_CMD_PART to be enabled
27 #endif
28
29 static int do_part_uuid(int argc, char * const argv[])
30 {
31         int part;
32         block_dev_desc_t *dev_desc;
33         disk_partition_t info;
34
35         if (argc < 2)
36                 return CMD_RET_USAGE;
37         if (argc > 3)
38                 return CMD_RET_USAGE;
39
40         part = get_device_and_partition(argv[0], argv[1], &dev_desc, &info, 0);
41         if (part < 0)
42                 return 1;
43
44         if (argc > 2)
45                 setenv(argv[2], info.uuid);
46         else
47                 printf("%s\n", info.uuid);
48
49         return 0;
50 }
51
52 static int do_part_list(int argc, char * const argv[])
53 {
54         int ret;
55         block_dev_desc_t *desc;
56
57         if (argc < 2 || argc > 3)
58                 return CMD_RET_USAGE;
59
60         ret = get_device(argv[0], argv[1], &desc);
61         if (ret < 0)
62                 return 1;
63
64         if (argc == 3) {
65                 int p;
66                 char str[512] = { 0, };
67           disk_partition_t info;
68
69                 for (p = 1; p < 128; p++) {
70                         int r = get_partition_info(desc, p, &info);
71
72                         if (r == 0) {
73                                 char t[5];
74                                 sprintf(t, "%s%d", str[0] ? " " : "", p);
75                                 strcat(str, t);
76                         }
77                 }
78                 setenv(argv[2], str);
79                 return 0;
80         }
81
82         print_part(desc);
83
84         return 0;
85 }
86
87 static int do_part(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
88 {
89         if (argc < 2)
90                 return CMD_RET_USAGE;
91
92         if (!strcmp(argv[1], "uuid"))
93                 return do_part_uuid(argc - 2, argv + 2);
94         else if (!strcmp(argv[1], "list"))
95                 return do_part_list(argc - 2, argv + 2);
96
97         return CMD_RET_USAGE;
98 }
99
100 U_BOOT_CMD(
101         part,   5,      1,      do_part,
102         "disk partition related commands",
103         "part uuid <interface> <dev>:<part>\n"
104         "    - print partition UUID\n"
105         "part uuid <interface> <dev>:<part> <varname>\n"
106         "    - set environment variable to partition UUID\n"
107         "part list <interface> <dev>\n"
108         "    - print a device's partition table\n"
109         "part list <interface> <dev> <varname>\n"
110         "    - set environment variable to the list of partitions"
111 );