text: /************************************************************************************
   * configs/viewtool-stm32f107/src/stm32_usbdev.c
   *
   *   Copyright (C) 2013 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 <stdbool.h>
  #include <debug.h>
  
  #include <nuttx/usb/usbdev.h>
  
  #include "stm32_otgfs.h"
  #include "viewtool_stm32f107.h"
  
  #if defined(CONFIG_STM32_OTGFS) || defined(CONFIG_STM32_USB)
  
  /************************************************************************************
   * Pre-processor Definitions
   ************************************************************************************/
  
  /************************************************************************************
   * Private Data
   ************************************************************************************/
  
  /************************************************************************************
   * Private Functions
   ************************************************************************************/
  
  /************************************************************************************
   * Public Functions
   ************************************************************************************/
  
  /************************************************************************************
   * Name: stm32_usbdev_initialize
   *
   * Description:
   *   Called from stm32_boardinitialize very early in initialization to setup USB-
   *   related GPIO pins for the Viewtool STM32F107 board.
   *
   ************************************************************************************/
  
  void stm32_usbdev_initialize(void)
  {
    /* The OTG FS has an internal soft pull-up.  No GPIO configuration is required */
  
  #ifdef CONFIG_ARCH_CHIP_STM32F103VC
    stm32_configgpio(GPIO_USB_PULLUP);
  #endif
  }
  
  /************************************************************************************
   * Name:  stm32_usbpullup
   *
   * Description:
   *   If USB is supported and the board supports a pullup via GPIO (for USB software
   *   connect and disconnect), then the board software must provide stm32_pullup.
   *   See include/nuttx/usb/usbdev.h for additional description of this method.
   *   Alternatively, if no pull-up GPIO the following EXTERN can be redefined to be
   *   NULL.
   *
   ************************************************************************************/
  
  #ifdef CONFIG_ARCH_CHIP_STM32F103VC
  int stm32_usbpullup(FAR struct usbdev_s *dev, bool enable)
  {
    usbtrace(TRACE_DEVPULLUP, (uint16_t)enable);
    stm32_gpiowrite(GPIO_USB_PULLUP, !enable);
    return OK;
  }
  #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.
   *
   ************************************************************************************/
  
  void stm32_usbsuspend(FAR struct usbdev_s *dev, bool resume)
  {
    uinfo("resume: %d\n", resume);
  }
  
  #endif /* CONFIG_STM32_OTGFS || CONFIG_STM32_USB*/
  