diff options
author | Nick Brassel <nick@tzarc.org> | 2021-08-29 08:20:25 +1000 |
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committer | Nick Brassel <nick@tzarc.org> | 2021-08-29 08:20:25 +1000 |
commit | f061ca497464fe85284906fb163a33eaee7a91ef (patch) | |
tree | 33ef1bfb529aed382e8526c607c4e18717f92571 /lib/usbhost/USB_Host_Shield_2.0/parsetools.cpp | |
parent | ff65185dec6f97be1eb49f17cea526a0d0bbf3d6 (diff) | |
parent | 4bad375d7c09d949a9dcdd4feba147c9c7a67ec6 (diff) |
Breaking changes develop merge to master, 2021Q3 edition. (#14196)
Diffstat (limited to 'lib/usbhost/USB_Host_Shield_2.0/parsetools.cpp')
-rw-r--r-- | lib/usbhost/USB_Host_Shield_2.0/parsetools.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/lib/usbhost/USB_Host_Shield_2.0/parsetools.cpp b/lib/usbhost/USB_Host_Shield_2.0/parsetools.cpp new file mode 100644 index 0000000000..74a8610597 --- /dev/null +++ b/lib/usbhost/USB_Host_Shield_2.0/parsetools.cpp @@ -0,0 +1,67 @@ +/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved. + +This software may be distributed and modified under the terms of the GNU +General Public License version 2 (GPL2) as published by the Free Software +Foundation and appearing in the file GPL2.TXT included in the packaging of +this file. Please note that GPL2 Section 2[b] requires that all works based +on this software must also be made publicly available under the terms of +the GPL2 ("Copyleft"). + +Contact information +------------------- + +Circuits At Home, LTD +Web : http://www.circuitsathome.com +e-mail : support@circuitsathome.com + */ +#include "Usb.h" + +bool MultiByteValueParser::Parse(uint8_t **pp, uint16_t *pcntdn) { + if(!pBuf) { + Notify(PSTR("Buffer pointer is NULL!\r\n"), 0x80); + return false; + } + for(; countDown && (*pcntdn); countDown--, (*pcntdn)--, (*pp)++) + pBuf[valueSize - countDown] = (**pp); + + if(countDown) + return false; + + countDown = valueSize; + return true; +} + +bool PTPListParser::Parse(uint8_t **pp, uint16_t *pcntdn, PTP_ARRAY_EL_FUNC pf, const void *me) { + switch(nStage) { + case 0: + pBuf->valueSize = lenSize; + theParser.Initialize(pBuf); + nStage = 1; + + case 1: + if(!theParser.Parse(pp, pcntdn)) + return false; + + arLen = 0; + arLen = (pBuf->valueSize >= 4) ? *((uint32_t*)pBuf->pValue) : (uint32_t)(*((uint16_t*)pBuf->pValue)); + arLenCntdn = arLen; + nStage = 2; + + case 2: + pBuf->valueSize = valSize; + theParser.Initialize(pBuf); + nStage = 3; + + case 3: + for(; arLenCntdn; arLenCntdn--) { + if(!theParser.Parse(pp, pcntdn)) + return false; + + if(pf) + pf(pBuf, (arLen - arLenCntdn), me); + } + + nStage = 0; + } + return true; +} |