simtrace2/sam3s_example/atmel_softpack_libraries/usb/device/hid-keyboard/HIDDKeyboardDriver.c

124 lines
4.3 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_hid_key
*@{
* Implement a USB device that only have HID Keyboard Function.
*/
/*------------------------------------------------------------------------------
* Headers
*------------------------------------------------------------------------------*/
#include <HIDDKeyboardDriver.h>
#include <HIDDFunction.h>
#include <USBLib_Trace.h>
#include <USBRequests.h>
#include <HIDDescriptors.h>
#include <HIDRequests.h>
#include <HIDReports.h>
#include <HIDUsages.h>
#include <USBD.h>
#include <USBD_HAL.h>
#include <USBDDriver.h>
/*------------------------------------------------------------------------------
* Internal types
*------------------------------------------------------------------------------*/
/*------------------------------------------------------------------------------
* Internal variables
*------------------------------------------------------------------------------*/
/*------------------------------------------------------------------------------
* Internal functions
*------------------------------------------------------------------------------*/
/*------------------------------------------------------------------------------
* Exported functions
*------------------------------------------------------------------------------*/
/**
* Initializes the HID keyboard device driver.
*/
void HIDDKeyboardDriver_Initialize(const USBDDriverDescriptors *pDescriptors)
{
USBDDriver *pUsbd = USBD_GetDriver();
USBDDriver_Initialize(pUsbd, pDescriptors, 0);
HIDDKeyboard_Initialize(pUsbd, 0);
USBD_Init();
}
/**
* Handles configureation changed event.
* \param cfgnum New configuration number
*/
void HIDDKeyboardDriver_ConfigurationChangedHandler(uint8_t cfgnum)
{
USBDDriver *pUsbd = USBD_GetDriver();
const USBDDriverDescriptors * pDescriptors = pUsbd->pDescriptors;
USBConfigurationDescriptor *pDesc;
if (cfgnum > 0) {
if (USBD_HAL_IsHighSpeed() && pDescriptors->pHsConfiguration)
pDesc = (USBConfigurationDescriptor*)pDescriptors->pHsConfiguration;
else
pDesc = (USBConfigurationDescriptor*)pDescriptors->pFsConfiguration[0];
HIDDKeyboard_ConfigureFunction((USBGenericDescriptor*)pDesc,
pDesc->wTotalLength);
}
}
/**
* Handles HID-specific SETUP request sent by the host.
* \param request Pointer to a USBGenericRequest instance.
*/
void HIDDKeyboardDriver_RequestHandler(const USBGenericRequest *request)
{
USBDDriver *pUsbd = USBD_GetDriver();
TRACE_INFO_WP("NewReq ");
/* Process HID requests */
if (USBRC_SUCCESS == HIDDKeyboard_RequestHandler(request)) {
return;
}
/* Process STD requests */
else {
USBDDriver_RequestHandler(pUsbd, request);
}
}
/**@}*/