/*	LPCUSB, an USB device driver for LPC microcontrollers		Copyright (C) 2006 Bertrik Sikken (bertrik@sikken.nl)	Redistribution and use in source and binary forms, with or without	modification, are permitted provided that the following conditions are met:	1. Redistributions of source code must retain the above copyright	   notice, this list of conditions and the following disclaimer.	2. Redistributions in binary form must reproduce the above copyright	   notice, this list of conditions and the following disclaimer in the	   documentation and/or other materials provided with the distribution.	3. The name of the author may not be used to endorse or promote products	   derived from this software without specific prior written permission.	THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	IN NO EVENT SHALL THE AUTHOR 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.*/#include "type.h"#include "usbdebug.h"#include "console.h"#include "usbapi.h"#include "startup.h"#define INTR_IN_EP		0x81#define MAX_PACKET_SIZE	64#define LE_WORD(x)		((x)&0xFF),((x)>>8)#define REPORT_SIZE			4static U8	abClassReqData[4];static U8	abReport[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07};static int	_iIdleRate = 0;static int	_iFrame = 0;// see the joystick example from the usb.org HID Descriptor Toolstatic U8 abReportDesc[] = {	0x05, 0x01,	0x15, 0x00,	0x09, 0x04,	0xA1, 0x01,	0x05, 0x02,	0x09, 0xBB,	0x15, 0x81,	0x25, 0x7F,	0x75, 0x08,	0x95, 0x01,	0x81, 0x02,	0x05, 0x01,	0x09, 0x01,	0xA1, 0x00,	0x09, 0x30,	0x09, 0x31,	0x95, 0x02,	0x81, 0x02,	0xC0,	0x09, 0x39,	0x15, 0x00,	0x25, 0x03,	0x35, 0x00,	0x46, 0x0E, 0x01,	0x65, 0x14,	0x75, 0x04,	0x95, 0x01,	0x81, 0x02,	0x05, 0x09,	0x19, 0x01,	0x29, 0x04,	0x15, 0x00,	0x25, 0x01,	0x75, 0x01,	0x95, 0x04,	0x55, 0x00,	0x65, 0x00,	0x81, 0x02,	0xC0};static const U8 abDescriptors[] = {/* Device descriptor */	0x12,              			DESC_DEVICE,       			LE_WORD(0x0110),		// bcdUSB		0x00,              		// bDeviceClass	0x00,              		// bDeviceSubClass	0x00,              		// bDeviceProtocol	MAX_PACKET_SIZE0,  		// bMaxPacketSize	LE_WORD(0xFFFF),		// idVendor	LE_WORD(0x0001),		// idProduct	LE_WORD(0x0100),		// bcdDevice	0x01,              		// iManufacturer	0x02,              		// iProduct	0x03,              		// iSerialNumber	0x01,              		// bNumConfigurations// configuration	0x09,	DESC_CONFIGURATION,	LE_WORD(0x22),  		// wTotalLength	0x01,  					// bNumInterfaces	0x01,  					// bConfigurationValue	0x00,  					// iConfiguration	0x80,  					// bmAttributes	0x32,  					// bMaxPower// interface	0x09,   					DESC_INTERFACE, 	0x00,  		 			// bInterfaceNumber	0x00,   				// bAlternateSetting	0x01,   				// bNumEndPoints	0x03,   				// bInterfaceClass = HID	0x00,   				// bInterfaceSubClass	0x00,   				// bInterfaceProtocol	0x00,   				// iInterface// HID descriptor	0x09, 	DESC_HID_HID, 			// bDescriptorType = HID	LE_WORD(0x0110),		// bcdHID	0x00,   				// bCountryCode	0x01,   				// bNumDescriptors = report	DESC_HID_REPORT,   		// bDescriptorType	LE_WORD(sizeof(abReportDesc)),// EP descriptor	0x07,   			DESC_ENDPOINT,   			INTR_IN_EP,				// bEndpointAddress	0x03,   				// bmAttributes = INT	LE_WORD(MAX_PACKET_SIZE),// wMaxPacketSize	10,						// bInterval   		// string descriptors	0x04,	DESC_STRING,	LE_WORD(0x0409),	// manufacturer string	0x0E,	DESC_STRING,	'L', 0, 'P', 0, 'C', 0, 'U', 0, 'S', 0, 'B', 0,	// product string	0x12,	DESC_STRING,	'P', 0, 'r', 0, 'o', 0, 'd', 0, 'u', 0, 'c', 0, 't', 0, 'X', 0,	// serial number string	0x12,	DESC_STRING,	'D', 0, 'E', 0, 'A', 0, 'D', 0, 'C', 0, '0', 0, 'D', 0, 'E', 0,		// terminator	0};/*************************************************************************	HandleClassRequest	==================		HID class request handler		**************************************************************************/static BOOL HandleClassRequest(TSetupPacket *pSetup, int *piLen, U8 **ppbData){	U8	*pbData = *ppbData;	switch (pSetup->bRequest) {	   	// get_idle	case HID_GET_IDLE:		DBG("GET IDLE, val=%X, idx=%X\n", pSetup->wValue, pSetup->wIndex);		pbData[0] = (_iIdleRate / 4) & 0xFF;		*piLen = 1;		break;	// set_idle:	case HID_SET_IDLE:		DBG("SET IDLE, val=%X, idx=%X\n", pSetup->wValue, pSetup->wIndex);		_iIdleRate = ((pSetup->wValue >> 8) & 0xFF) * 4;		break;	default:		DBG("Unhandled class %X\n", pSetup->bRequest);		return FALSE;	}	return TRUE;}#define BAUD_RATE	115200/*************************************************************************	HIDHandleStdReq	===============		Standard request handler for HID devices.			This function tries to service any HID specific requests.		**************************************************************************/static BOOL HIDHandleStdReq(TSetupPacket *pSetup, int *piLen, U8 **ppbData){	U8	bType, bIndex;	if ((pSetup->bmRequestType == 0x81) &&			// standard IN request for interface		(pSetup->bRequest == REQ_GET_DESCRIPTOR)) {	// get descriptor				bType = GET_DESC_TYPE(pSetup->wValue);		bIndex = GET_DESC_INDEX(pSetup->wValue);		switch (bType) {		case DESC_HID_REPORT:			// report			*ppbData = abReportDesc;			*piLen = sizeof(abReportDesc);			break;		case DESC_HID_HID:		case DESC_HID_PHYSICAL:		default:		    // search descriptor space		    return USBGetDescriptor(pSetup->wValue, pSetup->wIndex, piLen, ppbData);		}				return TRUE;	}	return FALSE;}static void HandleFrame(U16 wFrame){	static int iCount;	_iFrame++;	if ((_iFrame > 1000)) {		// send report (dummy data)		abReport[0] = (iCount >> 8) & 0xFF;		abReport[1] = (iCount) & 0xFF;		iCount++;		USBHwEPWrite(INTR_IN_EP, abReport, REPORT_SIZE);		_iFrame = 0;	}}/*************************************************************************	main	====**************************************************************************/int main(void){	// PLL and MAM	Initialize();	// init DBG	ConsoleInit(60000000 / (16 * BAUD_RATE));	DBG("Initialising USB stack\n");		// initialise stack	USBInit();		// register device descriptors	USBRegisterDescriptors(abDescriptors);	// register HID standard request handler	USBRegisterCustomReqHandler(HIDHandleStdReq);	// register class request handler	USBRegisterRequestHandler(REQTYPE_TYPE_CLASS, HandleClassRequest, abClassReqData);	// register endpoint	USBHwRegisterEPIntHandler(INTR_IN_EP, NULL);	// register frame handler	USBHwRegisterFrameHandler(HandleFrame);	DBG("Starting USB communication\n");	// connect to bus	USBHwConnect(TRUE);	// call USB interrupt handler continuously	while (1) {		USBHwISR();	}		return 0;}