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/*
* Copyright (C) 2011 Samsung Electronics
* Lukasz Majewski <l.majewski@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <errno.h>
#include <common.h>
#include <command.h>
#include <g_dnl.h>
#include <usb_mass_storage.h>
int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
char *ep;
unsigned int dev_num = 0, offset = 0, part_size = 0;
int rc;
struct ums_board_info *ums_info;
static char *s = "ums";
if (argc < 2) {
printf("usage: ums <dev> - e.g. ums 0\n");
return 0;
}
dev_num = (int)simple_strtoul(argv[1], &ep, 16);
if (dev_num) {
puts("\nSet eMMC device to 0! - e.g. ums 0\n");
goto fail;
}
board_usb_init();
ums_info = board_ums_init(dev_num, offset, part_size);
if (!ums_info) {
printf("MMC: %d -> NOT available\n", dev_num);
goto fail;
}
rc = fsg_init(ums_info);
if (rc) {
printf("cmd ums: fsg_init failed\n");
goto fail;
}
g_dnl_register(s);
while (1) {
/* Handle control-c and timeouts */
if (ctrlc()) {
printf("The remote end did not respond in time.\n");
goto exit;
}
usb_gadget_handle_interrupts();
/* Check if USB cable has been detached */
if (fsg_main_thread(NULL) == EIO)
goto exit;
}
exit:
g_dnl_unregister();
return 0;
fail:
return -1;
}
U_BOOT_CMD(ums, CONFIG_SYS_MAXARGS, 1, do_usb_mass_storage,
"Use the UMS [User Mass Storage]",
"ums - User Mass Storage Gadget"
);
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