SAMV71 Xplained Ultra Software Package 1.5

CDCDEEMDriver.c

Go to the documentation of this file.
00001 /* ---------------------------------------------------------------------------- */
00002 /*                  Atmel Microcontroller Software Support                      */
00003 /*                       SAM Software Package License                           */
00004 /* ---------------------------------------------------------------------------- */
00005 /* Copyright (c) 2015, Atmel Corporation                                        */
00006 /*                                                                              */
00007 /* All rights reserved.                                                         */
00008 /*                                                                              */
00009 /* Redistribution and use in source and binary forms, with or without           */
00010 /* modification, are permitted provided that the following condition is met:    */
00011 /*                                                                              */
00012 /* - Redistributions of source code must retain the above copyright notice,     */
00013 /* this list of conditions and the disclaimer below.                            */
00014 /*                                                                              */
00015 /* Atmel's name may not be used to endorse or promote products derived from     */
00016 /* this software without specific prior written permission.                     */
00017 /*                                                                              */
00018 /* DISCLAIMER:  THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR   */
00019 /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
00020 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE   */
00021 /* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,      */
00022 /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
00023 /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,  */
00024 /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF    */
00025 /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING         */
00026 /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */
00027 /* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                           */
00028 /* ---------------------------------------------------------------------------- */
00029 
00030 /**\file
00031  *   Title: CDCDEEMDriver implementation
00032  *
00033  *   About: Purpose
00034  *       Implementation of the CDCDEEMDriver class methods.
00035  */
00036 
00037 /** \addtogroup usbd_cdc
00038  *@{
00039  */
00040 
00041 /*------------------------------------------------------------------------------
00042  *         Headers
00043  *------------------------------------------------------------------------------*/
00044 
00045 #include "CDCDEEMDriver.h"
00046 
00047 #include <USBLib_Trace.h>
00048 #include <USBDDriver.h>
00049 #include <USBD_HAL.h>
00050 
00051 /*------------------------------------------------------------------------------
00052  *         Types
00053  *------------------------------------------------------------------------------*/
00054 
00055 /*------------------------------------------------------------------------------
00056  *         Internal variables
00057  *------------------------------------------------------------------------------*/
00058 
00059 /*------------------------------------------------------------------------------
00060  *         Internal functions
00061  *------------------------------------------------------------------------------*/
00062 
00063 /*------------------------------------------------------------------------------
00064  *         Exported functions
00065  *------------------------------------------------------------------------------*/
00066 
00067 /**
00068  *  Initializes the USB Device CDC serial driver & USBD Driver.
00069  *  \param  pDescriptors Pointer to Descriptors list for CDC EEM Device.
00070  */
00071 void CDCDEEMDriver_Initialize(const USBDDriverDescriptors *pDescriptors)
00072 {
00073     USBDDriver *pUsbd = USBD_GetDriver();
00074 
00075     /* Initialize the standard driver */
00076     USBDDriver_Initialize(pUsbd,
00077                           pDescriptors,
00078                           0); /* Multiple settings for interfaces not supported */
00079 
00080     CDCDEEM_Initialize(pUsbd, CDCDEEMDriver_CC_INTERFACE);
00081 
00082     /* Initialize the USB driver */
00083     USBD_Init();
00084 }
00085 
00086 /**
00087  * Invoked whenever the active configuration of device is changed by the
00088  * host.
00089  * \param cfgnum Configuration number.
00090  */
00091 void CDCDEEMDriver_ConfigurationChangedHandler(uint8_t cfgnum)
00092 {
00093     USBDDriver *pUsbd = USBD_GetDriver();
00094     USBConfigurationDescriptor *pDesc;
00095 
00096     if (cfgnum) {
00097         pDesc = USBDDriver_GetCfgDescriptors(pUsbd, cfgnum);
00098         CDCDEEM_ConfigureFunction((USBGenericDescriptor *)pDesc,
00099                                   pDesc->wTotalLength);
00100     }
00101 }
00102 
00103 /**
00104  * Handles CDC-specific SETUP requests. Should be called from a
00105  * re-implementation of USBDCallbacks_RequestReceived() method.
00106  * \param request Pointer to a USBGenericRequest instance.
00107  */
00108 void CDCDEEMDriver_RequestHandler(const USBGenericRequest *request)
00109 {
00110     USBDDriver *pUsbd = USBD_GetDriver();
00111     TRACE_INFO_WP("NewReq ");
00112 
00113     if (CDCDEEM_RequestHandler(request))
00114         USBDDriver_RequestHandler(pUsbd, request);
00115 }
00116 
00117 /**@}*/
00118 
 All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Defines