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/************************************************************************************
* arch/arm/src/efm32/efm32_usb.h
*
* 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.
*
************************************************************************************/
#ifndef __ARCH_ARM_SRC_EFM32_EFM32_OTGFS_H
#define __ARCH_ARM_SRC_EFM32_EFM32_OTGFS_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include "chip/efm32_usb.h"
#if defined(CONFIG_EFM32_OTGFS)
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Configuration ********************************************************************/
#ifndef CONFIG_OTGFS_PRI
# define CONFIG_OTGFS_PRI NVIC_SYSH_PRIORITY_DEFAULT
#endif
/************************************************************************************
* Public Functions
************************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/*******************************************************************************
* Name: efm32_usbhost_initialize
*
* Description:
* Initialize USB host device controller hardware.
*
* Input Parameters:
* controller -- If the device supports more than USB host controller, then
* this identifies which controller is being initializeed. Normally, this
* is just zero.
*
* Returned Value:
* And instance of the USB host interface. The controlling task should
* use this interface to (1) call the wait() method to wait for a device
* to be connected, and (2) call the enumerate() method to bind the device
* to a class driver.
*
* Assumptions:
* - This function should called in the initialization sequence in order
* to initialize the USB device functionality.
* - Class drivers should be initialized prior to calling this function.
* Otherwise, there is a race condition if the device is already connected.
*
*******************************************************************************/
#ifdef CONFIG_USBHOST
struct usbhost_connection_s;
FAR struct usbhost_connection_s *efm32_usbhost_initialize(int controller);
#endif
/***********************************************************************************
* Name: efm32_usbhost_vbusdrive
*
* Description:
* Enable/disable driving of VBUS 5V output. This function must be provided be
* each platform that implements the EFM32 OTG FS host interface
*
* Input Parameters:
* iface - For future growth to handle multiple USB host interface. Should be zero.
* enable - true: enable VBUS power; false: disable VBUS power
*
* Returned Value:
* None
*
***********************************************************************************/
#ifdef CONFIG_USBHOST
void efm32_usbhost_vbusdrive(int iface, bool enable);
#endif
/************************************************************************************
* Name: efm32_usbsuspend
*
* Description:
* Board logic must provide the efm32_usbsuspend logic if the OTG FS device 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
struct usbdev_s;
void efm32_usbsuspend(FAR struct usbdev_s *dev, bool resume);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_EFM32_OTGFS */
#endif /* __ARCH_ARM_SRC_EFM32_EFM32_OTGFS_H */
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