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jeremybenn |
/*
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LPCUSB, an USB device driver for LPC microcontrollers
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Copyright (C) 2006 Bertrik Sikken (bertrik@sikken.nl)
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/** @file
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USB stack initialisation
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*/
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#include "usbdebug.h"
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#include "usbapi.h"
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/** data storage area for standard requests */
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static unsigned char abStdReqData[8];
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/**
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USB reset handler
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@param [in] bDevStatus Device status
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*/
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static void HandleUsbReset(unsigned char bDevStatus)
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{
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if (bDevStatus & DEV_STATUS_RESET) {
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DBG("\n!");
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}
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}
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/**
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Initialises the USB hardware and sets up the USB stack by
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installing default callbacks.
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@return TRUE if initialisation was successful
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*/
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BOOL USBInit(void)
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{
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// init hardware
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USBHwInit();
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// register bus reset handler
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USBHwRegisterDevIntHandler(HandleUsbReset);
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// register control transfer handler on EP0
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USBHwRegisterEPIntHandler(0x00, USBHandleControlTransfer);
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USBHwRegisterEPIntHandler(0x80, USBHandleControlTransfer);
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// setup control endpoints
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USBHwEPConfig(0x00, MAX_PACKET_SIZE0);
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USBHwEPConfig(0x80, MAX_PACKET_SIZE0);
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// register standard request handler
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USBRegisterRequestHandler(REQTYPE_TYPE_STANDARD, USBHandleStandardRequest, abStdReqData);
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return TRUE;
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}
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