68 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			68 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
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| 
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| This software may be distributed and modified under the terms of the GNU
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| General Public License version 2 (GPL2) as published by the Free Software
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| Foundation and appearing in the file GPL2.TXT included in the packaging of
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| this file. Please note that GPL2 Section 2[b] requires that all works based
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| on this software must also be made publicly available under the terms of
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| the GPL2 ("Copyleft").
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| 
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| Contact information
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| -------------------
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| 
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| Circuits At Home, LTD
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| Web      :  http://www.circuitsathome.com
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| e-mail   :  support@circuitsathome.com
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|  */
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| #include "Usb.h"
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| 
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| bool MultiByteValueParser::Parse(uint8_t **pp, uint16_t *pcntdn) {
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|         if(!pBuf) {
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|                 Notify(PSTR("Buffer pointer is NULL!\r\n"), 0x80);
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|                 return false;
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|         }
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|         for(; countDown && (*pcntdn); countDown--, (*pcntdn)--, (*pp)++)
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|                 pBuf[valueSize - countDown] = (**pp);
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| 
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|         if(countDown)
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|                 return false;
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| 
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|         countDown = valueSize;
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|         return true;
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| }
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| 
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| bool PTPListParser::Parse(uint8_t **pp, uint16_t *pcntdn, PTP_ARRAY_EL_FUNC pf, const void *me) {
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|         switch(nStage) {
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|                 case 0:
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|                         pBuf->valueSize = lenSize;
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|                         theParser.Initialize(pBuf);
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|                         nStage = 1;
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| 
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|                 case 1:
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|                         if(!theParser.Parse(pp, pcntdn))
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|                                 return false;
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| 
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|                         arLen = 0;
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|                         arLen = (pBuf->valueSize >= 4) ? *((uint32_t*)pBuf->pValue) : (uint32_t)(*((uint16_t*)pBuf->pValue));
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|                         arLenCntdn = arLen;
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|                         nStage = 2;
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| 
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|                 case 2:
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|                         pBuf->valueSize = valSize;
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|                         theParser.Initialize(pBuf);
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|                         nStage = 3;
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| 
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|                 case 3:
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|                         for(; arLenCntdn; arLenCntdn--) {
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|                                 if(!theParser.Parse(pp, pcntdn))
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|                                         return false;
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| 
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|                                 if(pf)
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|                                         pf(pBuf, (arLen - arLenCntdn), me);
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|                         }
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| 
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|                         nStage = 0;
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|         }
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|         return true;
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| }
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