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