SAMV71 Xplained Ultra Software Package 1.5

MSDDriver.c

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00001 /* ---------------------------------------------------------------------------- */
00002 /*                  Atmel Microcontroller Software Support                      */
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00005 /* Copyright (c) 2015, Atmel Corporation                                        */
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00011 /*                                                                              */
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00029 
00030 /** \file
00031  *  \addtogroup usbd_msd
00032  *@{
00033  *  Implement a single interface device with single MS function in.
00034  */
00035 
00036 /*------------------------------------------------------------------------------
00037  *      Includes
00038  *------------------------------------------------------------------------------*/
00039 
00040 #include <MSDDriver.h>
00041 #include <MSDFunction.h>
00042 #include <USBLib_Trace.h>
00043 #include "USBD.h"
00044 #include <USBD_HAL.h>
00045 #include <USBDDriver.h>
00046 
00047 /*-----------------------------------------------------------------------------
00048  *         Internal variables
00049  *-----------------------------------------------------------------------------*/
00050 
00051 /*-----------------------------------------------------------------------------
00052  *      Internal functions
00053  *-----------------------------------------------------------------------------*/
00054 
00055 /*-----------------------------------------------------------------------------
00056  *      Exported functions
00057  *-----------------------------------------------------------------------------*/
00058 
00059 /**
00060  * Initializes the MSD driver and the associated USB driver.
00061  * \param  pDescriptors Pointer to Descriptors list for MSD Device.
00062  * \param  pLuns        Pointer to a list of LUNs
00063  * \param  numLuns      Number of LUN in list
00064  * \see MSDLun
00065  */
00066 void MSDDriver_Initialize(
00067     const USBDDriverDescriptors *pDescriptors,
00068     MSDLun *pLuns, unsigned char numLuns)
00069 {
00070     USBDDriver *pUsbd = USBD_GetDriver();
00071     USBDDriver_Initialize(pUsbd, pDescriptors, 0);
00072     MSDFunction_Initialize(pUsbd, 0, pLuns, numLuns);
00073     USBD_Init();
00074 }
00075 
00076 /**
00077  * Invoked when the configuration of the device changes. Resets the mass
00078  * storage driver.
00079  * \param  pMsdDriver  Pointer to MSDDriver instance.
00080  * \param  cfgnum      New configuration number.
00081  */
00082 void MSDDriver_ConfigurationChangeHandler(
00083     uint8_t cfgnum)
00084 {
00085     USBDDriver *pUsbd = USBD_GetDriver();
00086     USBConfigurationDescriptor *pDesc;
00087 
00088     if (cfgnum) {
00089         pDesc = USBDDriver_GetCfgDescriptors(pUsbd, cfgnum);
00090         MSDFunction_Configure((USBGenericDescriptor *)pDesc,
00091                               pDesc->wTotalLength);
00092     }
00093 }
00094 
00095 /**
00096  * Handler for incoming SETUP requests on default Control endpoint 0.
00097  *
00098  * Standard requests are forwarded to the USBDDriver_RequestHandler
00099  * method.
00100  * \param  pMsdDriver  Pointer to MSDDriver instance.
00101  * \param  request Pointer to a USBGenericRequest instance
00102  */
00103 void MSDDriver_RequestHandler(
00104     const USBGenericRequest *request)
00105 {
00106     USBDDriver *pUsbd = USBD_GetDriver();
00107     TRACE_INFO_WP("NewReq ");
00108 
00109     if (MSDFunction_RequestHandler(request))
00110         USBDDriver_RequestHandler(pUsbd, request);
00111 }
00112 
00113 /**@}*/
00114 
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