text: /************************************************************************************
   * configs/odrive-3-3/src/stm32_usbdev.c
   *
   *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
   *   Author: Gregory Nutt <gnutt@nuttx.org>
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   * 3. Neither the name NuttX nor the names of its contributors may be
   *    used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
   * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
   * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   ************************************************************************************/
  
  /************************************************************************************
   * Included Files
   ************************************************************************************/
  
  #include <nuttx/config.h>
  
  #include <sys/types.h>
  #include <stdint.h>
  #include <stdbool.h>
  #include <sched.h>
  #include <errno.h>
  #include <debug.h>
  #include <nuttx/usb/usbdev.h>
  #include <nuttx/usb/usbdev_trace.h>
  #include "stm32.h"
  #include "stm32_otgfs.h"
  #include "odrive-3-3.h"
  
  #ifdef CONFIG_STM32_OTGFS
  
  /************************************************************************************
   * Pre-processor Definitions
   ************************************************************************************/
  
  #if defined(CONFIG_USBDEV)
  #  define HAVE_USB 1
  #else
  #  warning "CONFIG_STM32_OTGFS is enabled but not CONFIG_USBDEV"
  #  undef HAVE_USB
  #endif
  
  /************************************************************************************
   * Private Data
   ************************************************************************************/
  
  /************************************************************************************
   * Private Functions
   ************************************************************************************/
  
  /************************************************************************************
   * Public Functions
   ************************************************************************************/
  
  /************************************************************************************
   * Name: stm32_usbinitialize
   *
   * Description:
   *   Called from stm32_usbinitialize very early in inialization to setup USB-related
   *   GPIO pins for the STM32F4Discovery board.
   *
   ************************************************************************************/
  
  void stm32_usbinitialize(void)
  {
    /* The OTG FS has an internal soft pull-up.  No GPIO configuration is required */
  
    /* Configure the OTG FS VBUS sensing GPIO */
  
  #ifdef CONFIG_STM32_OTGFS
    stm32_configgpio(GPIO_OTGFS_VBUS);
  #endif
  }
  
  /************************************************************************************
   * Name:  stm32_usbsuspend
   *
   * Description:
   *   Board logic must provide the stm32_usbsuspend logic if the USBDEV driver is
   *   used.  This function is called whenever the USB enters or leaves suspend mode.
   *   This is an opportunity for the board logic to shutdown clocks, power, etc.
   *   while the USB is suspended.
   *
   ************************************************************************************/
  
  #ifdef CONFIG_USBDEV
  void stm32_usbsuspend(FAR struct usbdev_s *dev, bool resume)
  {
    uinfo("resume: %d\n", resume);
  }
  #endif
  
  #endif /* CONFIG_STM32_OTGFS */
  