eichi kowata / Mbed 2 deprecated geiger

http://http://diytec.web.fc2.com/mark2r2/

Dependencies:   EthernetNetIf NTPClient_NetServices mbed ConfigFile

MODDMA/INIT.cpp@0:08a4d61cd84c, 2011-09-20 (annotated)

Committer:
mark2r2
Date:
Tue Sep 20 12:46:26 2011 +0000
Revision:
0:08a4d61cd84c
V1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mark2r2 0:08a4d61cd84c 1 /*
mark2r2 0:08a4d61cd84c 2 Copyright (c) 2010 Andy Kirkham
mark2r2 0:08a4d61cd84c 3
mark2r2 0:08a4d61cd84c 4 Permission is hereby granted, free of charge, to any person obtaining a copy
mark2r2 0:08a4d61cd84c 5 of this software and associated documentation files (the "Software"), to deal
mark2r2 0:08a4d61cd84c 6 in the Software without restriction, including without limitation the rights
mark2r2 0:08a4d61cd84c 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
mark2r2 0:08a4d61cd84c 8 copies of the Software, and to permit persons to whom the Software is
mark2r2 0:08a4d61cd84c 9 furnished to do so, subject to the following conditions:
mark2r2 0:08a4d61cd84c 10
mark2r2 0:08a4d61cd84c 11 The above copyright notice and this permission notice shall be included in
mark2r2 0:08a4d61cd84c 12 all copies or substantial portions of the Software.
mark2r2 0:08a4d61cd84c 13
mark2r2 0:08a4d61cd84c 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
mark2r2 0:08a4d61cd84c 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
mark2r2 0:08a4d61cd84c 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
mark2r2 0:08a4d61cd84c 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
mark2r2 0:08a4d61cd84c 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mark2r2 0:08a4d61cd84c 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
mark2r2 0:08a4d61cd84c 20 THE SOFTWARE.
mark2r2 0:08a4d61cd84c 21 */
mark2r2 0:08a4d61cd84c 22
mark2r2 0:08a4d61cd84c 23 #include "MODDMA.h"
mark2r2 0:08a4d61cd84c 24
mark2r2 0:08a4d61cd84c 25 namespace AjK {
mark2r2 0:08a4d61cd84c 26
mark2r2 0:08a4d61cd84c 27 extern uint32_t oldDMAHandler;
mark2r2 0:08a4d61cd84c 28 extern "C" void MODDMA_IRQHandler(void);
mark2r2 0:08a4d61cd84c 29 extern class MODDMA *moddma_p;
mark2r2 0:08a4d61cd84c 30
mark2r2 0:08a4d61cd84c 31 void
mark2r2 0:08a4d61cd84c 32 MODDMA::init(bool isConstructorCalling, int Channels, int Tc, int Err)
mark2r2 0:08a4d61cd84c 33 {
mark2r2 0:08a4d61cd84c 34 if (isConstructorCalling) {
mark2r2 0:08a4d61cd84c 35 if (LPC_SC->PCONP & (1UL << 29)) {
mark2r2 0:08a4d61cd84c 36 if (LPC_GPDMA->DMACConfig & 1) {
mark2r2 0:08a4d61cd84c 37 error("Only one instance of MODDMA can exist.");
mark2r2 0:08a4d61cd84c 38 }
mark2r2 0:08a4d61cd84c 39 }
mark2r2 0:08a4d61cd84c 40 LPC_SC->PCONP |= (1UL << 29);
mark2r2 0:08a4d61cd84c 41 LPC_GPDMA->DMACConfig = 1;
mark2r2 0:08a4d61cd84c 42 moddma_p = this;
mark2r2 0:08a4d61cd84c 43 for (int i = 0; i < 8; i++) {
mark2r2 0:08a4d61cd84c 44 setups[i] = (MODDMA_Config *)NULL;
mark2r2 0:08a4d61cd84c 45 }
mark2r2 0:08a4d61cd84c 46 }
mark2r2 0:08a4d61cd84c 47
mark2r2 0:08a4d61cd84c 48 // Reset channel configuration register(s)
mark2r2 0:08a4d61cd84c 49 if (Channels & 0x01) LPC_GPDMACH0->DMACCConfig = 0;
mark2r2 0:08a4d61cd84c 50 if (Channels & 0x02) LPC_GPDMACH1->DMACCConfig = 0;
mark2r2 0:08a4d61cd84c 51 if (Channels & 0x04) LPC_GPDMACH2->DMACCConfig = 0;
mark2r2 0:08a4d61cd84c 52 if (Channels & 0x08) LPC_GPDMACH3->DMACCConfig = 0;
mark2r2 0:08a4d61cd84c 53 if (Channels & 0x10) LPC_GPDMACH4->DMACCConfig = 0;
mark2r2 0:08a4d61cd84c 54 if (Channels & 0x20) LPC_GPDMACH5->DMACCConfig = 0;
mark2r2 0:08a4d61cd84c 55 if (Channels & 0x40) LPC_GPDMACH6->DMACCConfig = 0;
mark2r2 0:08a4d61cd84c 56 if (Channels & 0x80) LPC_GPDMACH7->DMACCConfig = 0;
mark2r2 0:08a4d61cd84c 57
mark2r2 0:08a4d61cd84c 58 /* Clear DMA interrupt and error flag */
mark2r2 0:08a4d61cd84c 59 LPC_GPDMA->DMACIntTCClear = Tc;
mark2r2 0:08a4d61cd84c 60 LPC_GPDMA->DMACIntErrClr = Err;
mark2r2 0:08a4d61cd84c 61
mark2r2 0:08a4d61cd84c 62 if (isConstructorCalling) {
mark2r2 0:08a4d61cd84c 63 oldDMAHandler = NVIC_GetVector(DMA_IRQn);
mark2r2 0:08a4d61cd84c 64 NVIC_SetVector(DMA_IRQn, (uint32_t)MODDMA_IRQHandler);
mark2r2 0:08a4d61cd84c 65 NVIC_EnableIRQ(DMA_IRQn);
mark2r2 0:08a4d61cd84c 66 }
mark2r2 0:08a4d61cd84c 67 }
mark2r2 0:08a4d61cd84c 68
mark2r2 0:08a4d61cd84c 69 }; // namespace AjK ends