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18#include <common.h>
19#include <config.h>
20#include <command.h>
21#include <env.h>
22#include <part.h>
23#include <vsprintf.h>
24
25enum cmd_part_info {
26 CMD_PART_INFO_START = 0,
27 CMD_PART_INFO_SIZE,
28 CMD_PART_INFO_NUMBER
29};
30
31static int do_part_uuid(int argc, char *const argv[])
32{
33 int part;
34 struct blk_desc *dev_desc;
35 struct disk_partition info;
36
37 if (argc < 2)
38 return CMD_RET_USAGE;
39 if (argc > 3)
40 return CMD_RET_USAGE;
41
42 part = blk_get_device_part_str(argv[0], argv[1], &dev_desc, &info, 0);
43 if (part < 0)
44 return 1;
45
46 if (argc > 2)
47 env_set(argv[2], info.uuid);
48 else
49 printf("%s\n", info.uuid);
50
51 return 0;
52}
53
54static int do_part_list(int argc, char *const argv[])
55{
56 int ret;
57 struct blk_desc *desc;
58 char *var = NULL;
59 bool bootable = false;
60 int i;
61
62 if (argc < 2)
63 return CMD_RET_USAGE;
64
65 if (argc > 2) {
66 for (i = 2; i < argc ; i++) {
67 if (argv[i][0] == '-') {
68 if (!strcmp(argv[i], "-bootable")) {
69 bootable = true;
70 } else {
71 printf("Unknown option %s\n", argv[i]);
72 return CMD_RET_USAGE;
73 }
74 } else {
75 var = argv[i];
76 break;
77 }
78 }
79
80
81
82 if (argc != i + 1)
83 return CMD_RET_USAGE;
84 }
85
86 ret = blk_get_device_by_str(argv[0], argv[1], &desc);
87 if (ret < 0)
88 return 1;
89
90 if (var != NULL) {
91 int p;
92 char str[512] = { '\0', };
93 struct disk_partition info;
94
95 for (p = 1; p < MAX_SEARCH_PARTITIONS; p++) {
96 char t[5];
97 int r = part_get_info(desc, p, &info);
98
99 if (r != 0)
100 continue;
101
102 if (bootable && !info.bootable)
103 continue;
104
105 sprintf(t, "%s%x", str[0] ? " " : "", p);
106 strcat(str, t);
107 }
108 env_set(var, str);
109 return 0;
110 }
111
112 part_print(desc);
113
114 return 0;
115}
116
117static int do_part_info(int argc, char *const argv[], enum cmd_part_info param)
118{
119 struct blk_desc *desc;
120 struct disk_partition info;
121 char buf[512] = { 0 };
122 char *endp;
123 int part;
124 int err;
125 int ret;
126
127 if (argc < 3)
128 return CMD_RET_USAGE;
129 if (argc > 4)
130 return CMD_RET_USAGE;
131
132 ret = blk_get_device_by_str(argv[0], argv[1], &desc);
133 if (ret < 0)
134 return 1;
135
136 part = simple_strtoul(argv[2], &endp, 0);
137 if (*endp == '\0') {
138 err = part_get_info(desc, part, &info);
139 if (err)
140 return 1;
141 } else {
142 part = part_get_info_by_name(desc, argv[2], &info);
143 if (part < 0)
144 return 1;
145 }
146
147 switch (param) {
148 case CMD_PART_INFO_START:
149 snprintf(buf, sizeof(buf), LBAF, info.start);
150 break;
151 case CMD_PART_INFO_SIZE:
152 snprintf(buf, sizeof(buf), LBAF, info.size);
153 break;
154 case CMD_PART_INFO_NUMBER:
155 snprintf(buf, sizeof(buf), "0x%x", part);
156 break;
157 default:
158 printf("** Unknown cmd_part_info value: %d\n", param);
159 return 1;
160 }
161
162 if (argc > 3)
163 env_set(argv[3], buf);
164 else
165 printf("%s\n", buf);
166
167 return 0;
168}
169
170static int do_part_start(int argc, char *const argv[])
171{
172 return do_part_info(argc, argv, CMD_PART_INFO_START);
173}
174
175static int do_part_size(int argc, char *const argv[])
176{
177 return do_part_info(argc, argv, CMD_PART_INFO_SIZE);
178}
179
180static int do_part_number(int argc, char *const argv[])
181{
182 return do_part_info(argc, argv, CMD_PART_INFO_NUMBER);
183}
184
185static int do_part_types(int argc, char * const argv[])
186{
187 struct part_driver *drv = ll_entry_start(struct part_driver,
188 part_driver);
189 const int n_ents = ll_entry_count(struct part_driver, part_driver);
190 struct part_driver *entry;
191 int i = 0;
192
193 puts("Supported partition tables");
194
195 for (entry = drv; entry != drv + n_ents; entry++) {
196 printf("%c %s", i ? ',' : ':', entry->name);
197 i++;
198 }
199 if (!i)
200 puts(": <none>");
201 puts("\n");
202 return CMD_RET_SUCCESS;
203}
204
205static int do_part(struct cmd_tbl *cmdtp, int flag, int argc,
206 char *const argv[])
207{
208 if (argc < 2)
209 return CMD_RET_USAGE;
210
211 if (!strcmp(argv[1], "uuid"))
212 return do_part_uuid(argc - 2, argv + 2);
213 else if (!strcmp(argv[1], "list"))
214 return do_part_list(argc - 2, argv + 2);
215 else if (!strcmp(argv[1], "start"))
216 return do_part_start(argc - 2, argv + 2);
217 else if (!strcmp(argv[1], "size"))
218 return do_part_size(argc - 2, argv + 2);
219 else if (!strcmp(argv[1], "number"))
220 return do_part_number(argc - 2, argv + 2);
221 else if (!strcmp(argv[1], "types"))
222 return do_part_types(argc - 2, argv + 2);
223 return CMD_RET_USAGE;
224}
225
226U_BOOT_CMD(
227 part, CONFIG_SYS_MAXARGS, 1, do_part,
228 "disk partition related commands",
229 "uuid <interface> <dev>:<part>\n"
230 " - print partition UUID\n"
231 "part uuid <interface> <dev>:<part> <varname>\n"
232 " - set environment variable to partition UUID\n"
233 "part list <interface> <dev>\n"
234 " - print a device's partition table\n"
235 "part list <interface> <dev> [flags] <varname>\n"
236 " - set environment variable to the list of partitions\n"
237 " flags can be -bootable (list only bootable partitions)\n"
238 "part start <interface> <dev> <part> <varname>\n"
239 " - set environment variable to the start of the partition (in blocks)\n"
240 " part can be either partition number or partition name\n"
241 "part size <interface> <dev> <part> <varname>\n"
242 " - set environment variable to the size of the partition (in blocks)\n"
243 " part can be either partition number or partition name\n"
244 "part number <interface> <dev> <part> <varname>\n"
245 " - set environment variable to the partition number using the partition name\n"
246 " part must be specified as partition name\n"
247 "part types\n"
248 " - list supported partition table types"
249);
250
