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/*
* Copyright (C) 2011 Samsung Electronics
* Lukasz Majewski <l.majewski@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <g_dnl.h>
#include <usb.h>
#include <usb_mass_storage.h>
int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
if (argc < 3)
return CMD_RET_USAGE;
const char *usb_controller = argv[1];
const char *mmc_devstring = argv[2];
unsigned int dev_num = (unsigned int)(simple_strtoul(mmc_devstring,
NULL, 0));
if (dev_num) {
error("Set eMMC device to 0! - e.g. ums 0");
goto fail;
}
unsigned int controller_index = (unsigned int)(simple_strtoul(
usb_controller, NULL, 0));
if (board_usb_init(controller_index, USB_INIT_DEVICE)) {
error("Couldn't init USB controller.");
goto fail;
}
struct ums_board_info *ums_info = board_ums_init(dev_num, 0, 0);
if (!ums_info) {
error("MMC: %d -> NOT available", dev_num);
goto fail;
}
int rc = fsg_init(ums_info);
if (rc) {
error("fsg_init failed");
goto fail;
}
g_dnl_register("ums");
while (1) {
/* Handle control-c and timeouts */
if (ctrlc()) {
error("The remote end did not respond in time.");
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]",
"<USB_controller> <mmc_dev>"
);
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