1 /* 2 * Copyright 2008 - 2009 Windriver, <www.windriver.com> 3 * Author: Tom Rix <Tom.Rix@windriver.com> 4 * 5 * (C) Copyright 2014 Linaro, Ltd. 6 * Rob Herring <robh@kernel.org> 7 * 8 * SPDX-License-Identifier: GPL-2.0+ 9 */ 10 #include <common.h> 11 #include <command.h> 12 #include <console.h> 13 #include <g_dnl.h> 14 #include <usb.h> 15 16 static int do_fastboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) 17 { 18 int controller_index; 19 char *usb_controller; 20 int ret; 21 22 if (argc < 2) 23 return CMD_RET_USAGE; 24 25 usb_controller = argv[1]; 26 controller_index = simple_strtoul(usb_controller, NULL, 0); 27 28 ret = board_usb_init(controller_index, USB_INIT_DEVICE); 29 if (ret) { 30 pr_err("USB init failed: %d", ret); 31 return CMD_RET_FAILURE; 32 } 33 34 g_dnl_clear_detach(); 35 ret = g_dnl_register("usb_dnl_fastboot"); 36 if (ret) 37 return ret; 38 39 if (!g_dnl_board_usb_cable_connected()) { 40 puts("\rUSB cable not detected.\n" \ 41 "Command exit.\n"); 42 ret = CMD_RET_FAILURE; 43 goto exit; 44 } 45 46 while (1) { 47 if (g_dnl_detach()) 48 break; 49 if (ctrlc()) 50 break; 51 usb_gadget_handle_interrupts(controller_index); 52 } 53 54 ret = CMD_RET_SUCCESS; 55 56 exit: 57 g_dnl_unregister(); 58 g_dnl_clear_detach(); 59 board_usb_cleanup(controller_index, USB_INIT_DEVICE); 60 61 return ret; 62 } 63 64 U_BOOT_CMD( 65 fastboot, 2, 1, do_fastboot, 66 "use USB Fastboot protocol", 67 "<USB_controller>\n" 68 " - run as a fastboot usb device" 69 ); 70