Files
simtrace2/firmware/atmel_softpack_libraries/usb/device/massstorage/MSDDriver.c
2015-04-07 18:24:06 +02:00

114 lines
4.1 KiB
C

/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2008, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
* ----------------------------------------------------------------------------
*/
/** \file
* \addtogroup usbd_msd
*@{
* Implement a single interface device with single MS function in.
*/
/*------------------------------------------------------------------------------
* Includes
*------------------------------------------------------------------------------*/
#include <MSDDriver.h>
#include <MSDFunction.h>
#include <USBLib_Trace.h>
#include <USBD.h>
#include <USBD_HAL.h>
#include <USBDDriver.h>
/*-----------------------------------------------------------------------------
* Internal variables
*-----------------------------------------------------------------------------*/
/*-----------------------------------------------------------------------------
* Internal functions
*-----------------------------------------------------------------------------*/
/*-----------------------------------------------------------------------------
* Exported functions
*-----------------------------------------------------------------------------*/
/**
* Initializes the MSD driver and the associated USB driver.
* \param pDescriptors Pointer to Descriptors list for MSD Device.
* \param pLuns Pointer to a list of LUNs
* \param numLuns Number of LUN in list
* \see MSDLun
*/
void MSDDriver_Initialize(
const USBDDriverDescriptors *pDescriptors,
MSDLun *pLuns, unsigned char numLuns)
{
USBDDriver *pUsbd = USBD_GetDriver();
USBDDriver_Initialize(pUsbd, pDescriptors, 0);
MSDFunction_Initialize(pUsbd, 0, pLuns, numLuns);
USBD_Init();
}
/**
* Invoked when the configuration of the device changes. Resets the mass
* storage driver.
* \param pMsdDriver Pointer to MSDDriver instance.
* \param cfgnum New configuration number.
*/
void MSDDriver_ConfigurationChangeHandler(
uint8_t cfgnum)
{
USBDDriver *pUsbd = USBD_GetDriver();
USBConfigurationDescriptor *pDesc;
if (cfgnum) {
pDesc = USBDDriver_GetCfgDescriptors(pUsbd, cfgnum);
MSDFunction_Configure((USBGenericDescriptor*)pDesc,
pDesc->wTotalLength);
}
}
/**
* Handler for incoming SETUP requests on default Control endpoint 0.
*
* Standard requests are forwarded to the USBDDriver_RequestHandler
* method.
* \param pMsdDriver Pointer to MSDDriver instance.
* \param request Pointer to a USBGenericRequest instance
*/
void MSDDriver_RequestHandler(
const USBGenericRequest *request)
{
USBDDriver *pUsbd = USBD_GetDriver();
TRACE_INFO_WP("NewReq ");
if (MSDFunction_RequestHandler(request)) {
USBDDriver_RequestHandler(pUsbd, request);
}
}
/**@}*/