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1 | /* |
2 | * Copyright (C) 2011 Samsung Electronics | |
3 | * Lukasz Majewski <l.majewski@samsung.com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU General Public License as | |
7 | * published by the Free Software Foundation; either version 2 of | |
8 | * the License, or (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
18 | * MA 02111-1307 USA | |
19 | */ | |
20 | ||
21 | #include <errno.h> | |
22 | #include <common.h> | |
23 | #include <command.h> | |
24 | #include <g_dnl.h> | |
25 | #include <usb_mass_storage.h> | |
26 | ||
27 | int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag, | |
28 | int argc, char * const argv[]) | |
29 | { | |
30 | char *ep; | |
31 | unsigned int dev_num = 0, offset = 0, part_size = 0; | |
32 | int rc; | |
33 | ||
34 | struct ums_board_info *ums_info; | |
35 | static char *s = "ums"; | |
36 | ||
37 | if (argc < 2) { | |
38 | printf("usage: ums <dev> - e.g. ums 0\n"); | |
39 | return 0; | |
40 | } | |
41 | ||
42 | dev_num = (int)simple_strtoul(argv[1], &ep, 16); | |
43 | ||
44 | if (dev_num) { | |
45 | puts("\nSet eMMC device to 0! - e.g. ums 0\n"); | |
46 | goto fail; | |
47 | } | |
48 | ||
49 | board_usb_init(); | |
50 | ums_info = board_ums_init(dev_num, offset, part_size); | |
51 | ||
52 | if (!ums_info) { | |
53 | printf("MMC: %d -> NOT available\n", dev_num); | |
54 | goto fail; | |
55 | } | |
56 | rc = fsg_init(ums_info); | |
57 | if (rc) { | |
58 | printf("cmd ums: fsg_init failed\n"); | |
59 | goto fail; | |
60 | } | |
61 | ||
62 | g_dnl_register(s); | |
63 | ||
64 | while (1) { | |
65 | /* Handle control-c and timeouts */ | |
66 | if (ctrlc()) { | |
67 | printf("The remote end did not respond in time.\n"); | |
68 | goto exit; | |
69 | } | |
70 | usb_gadget_handle_interrupts(); | |
71 | /* Check if USB cable has been detached */ | |
72 | if (fsg_main_thread(NULL) == EIO) | |
73 | goto exit; | |
74 | } | |
75 | exit: | |
76 | g_dnl_unregister(); | |
77 | return 0; | |
78 | ||
79 | fail: | |
80 | return -1; | |
81 | } | |
82 | ||
83 | U_BOOT_CMD(ums, CONFIG_SYS_MAXARGS, 1, do_usb_mass_storage, | |
84 | "Use the UMS [User Mass Storage]", | |
85 | "ums - User Mass Storage Gadget" | |
86 | ); |