Eric Lee / smarc-uboot

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cmd/fastboot.c 1.42 KB
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d41ce506b   Eric Lee   Initial Release, ... 
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  /*
   * Copyright 2008 - 2009 Windriver, <www.windriver.com>
   * Author: Tom Rix <Tom.Rix@windriver.com>
   *
   * (C) Copyright 2014 Linaro, Ltd.
   * Rob Herring <robh@kernel.org>
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  #include <common.h>
  #include <command.h>
  #include <console.h>
  #include <g_dnl.h>
  #include <usb.h>
  
  static int do_fastboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  {
  	int controller_index;
  	char *usb_controller;
  	int ret;
  
  	if (argc < 2)
  		return CMD_RET_USAGE;
  
  	usb_controller = argv[1];
  	controller_index = simple_strtoul(usb_controller, NULL, 0);
  #ifdef CONFIG_FASTBOOT_USB_DEV
  	controller_index = CONFIG_FASTBOOT_USB_DEV;
  #endif
  
  	ret = board_usb_init(controller_index, USB_INIT_DEVICE);
  	if (ret) {
  		pr_err("USB init failed: %d", ret);
  		return CMD_RET_FAILURE;
  	}
  
  	g_dnl_clear_detach();
  	ret = g_dnl_register("usb_dnl_fastboot");
  	if (ret)
  		return ret;
  
  	if (!g_dnl_board_usb_cable_connected()) {
  		puts("\rUSB cable not detected.
  " \
  		     "Command exit.
  ");
  		ret = CMD_RET_FAILURE;
  		goto exit;
  	}
  
  	while (1) {
  		if (g_dnl_detach())
  			break;
  		if (ctrlc())
  			break;
  		usb_gadget_handle_interrupts(controller_index);
  	}
  
  	ret = CMD_RET_SUCCESS;
  
  exit:
  	g_dnl_unregister();
  	g_dnl_clear_detach();
  	board_usb_cleanup(controller_index, USB_INIT_DEVICE);
  
  	return ret;
  }
  
  U_BOOT_CMD(
  	fastboot, 2, 1, do_fastboot,
  	"use USB Fastboot protocol",
  	"<USB_controller>
  "
  	"    - run as a fastboot usb device"
  );