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  • /*
     * cmd_dfu.c -- dfu command
     *
    
     * Copyright (C) 2015
     * Lukasz Majewski <l.majewski@majess.pl>
     *
    
     * Copyright (C) 2012 Samsung Electronics
     * authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
     *	    Lukasz Majewski <l.majewski@samsung.com>
     *
    
     * SPDX-License-Identifier:	GPL-2.0+
    
     */
    
    #include <common.h>
    
    #include <dfu.h>
    
    #include <console.h>
    
    #include <g_dnl.h>
    
    #include <usb.h>
    
    
    static int do_dfu(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
    {
    
    	if (argc < 4)
    		return CMD_RET_USAGE;
    
    	char *usb_controller = argv[1];
    	char *interface = argv[2];
    	char *devstring = argv[3];
    
    
    #ifdef CONFIG_DFU_TFTP
    	unsigned long addr = 0;
    	if (!strcmp(argv[1], "tftp")) {
    		if (argc == 5)
    			addr = simple_strtoul(argv[4], NULL, 0);
    
    		return update_tftp(addr, interface, devstring);
    	}
    #endif
    
    	ret = dfu_init_env_entities(interface, devstring);
    
    	ret = CMD_RET_SUCCESS;
    
    	if (argc > 4 && strcmp(argv[4], "list") == 0) {
    
    		dfu_show_entities();
    		goto done;
    	}
    
    
    	int controller_index = simple_strtoul(usb_controller, NULL, 0);
    
    	run_usb_dnl_gadget(controller_index, "usb_dnl_dfu");
    
    done:
    	dfu_free_entities();
    
    	return ret;
    
    }
    
    U_BOOT_CMD(dfu, CONFIG_SYS_MAXARGS, 1, do_dfu,
    	"Device Firmware Upgrade",
    
    	"<USB_controller> <interface> <dev> [list]\n"
    	"  - device firmware upgrade via <USB_controller>\n"
    	"    on device <dev>, attached to interface\n"
    	"    <interface>\n"
    	"    [list] - list available alt settings\n"
    
    #ifdef CONFIG_DFU_TFTP
    	"dfu tftp <interface> <dev> [<addr>]\n"
    	"  - device firmware upgrade via TFTP\n"
    	"    on device <dev>, attached to interface\n"
    	"    <interface>\n"
    	"    [<addr>] - address where FIT image has been stored\n"
    #endif