Graham Cantin
trying to make telnetserver repo public
Diff: SETUP.cpp
- Revision:
- 8:cb4d323ce6fd
- Parent:
- 0:c409efd8df78
- Child:
- 11:19009be5a0e7
--- a/SETUP.cpp Wed Nov 24 00:32:49 2010 +0000
+++ b/SETUP.cpp Sat Feb 05 08:53:26 2011 +0000
@@ -1,156 +1,156 @@
-/*
- Copyright (c) 2010 Andy Kirkham
-
- Permission is hereby granted, free of charge, to any person obtaining a copy
- of this software and associated documentation files (the "Software"), to deal
- in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
-
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- THE SOFTWARE.
-*/
-
-#include "MODDMA.h"
-
-namespace AjK {
-
-MODDMA::Status
-MODDMA::Setup(MODDMA_Config *config)
-{
- LPC_GPDMACH_TypeDef *pChannel = (LPC_GPDMACH_TypeDef *)Channel_p( config->channelNum() );
-
- if (LPC_GPDMA->DMACEnbldChns & EnbldChns_Ch( config->channelNum() )) {
- return ErrChInUse;
- }
-
- setups[config->channelNum() & 0x7] = config;
-
- // Reset the Interrupt status
- LPC_GPDMA->DMACIntTCClear = IntTCClear_Ch( config->channelNum() );
- LPC_GPDMA->DMACIntErrClr = IntErrClr_Ch ( config->channelNum() );
-
- // Clear DMA configure
- pChannel->DMACCControl = 0x00;
- pChannel->DMACCConfig = 0x00;
-
- // Assign Linker List Item value
- pChannel->DMACCLLI = config->dmaLLI();
-
- // Set value to Channel Control Registers
- switch (config->transferType()) {
-
- // Memory to memory
- case m2m:
- // Assign physical source and destination address
- pChannel->DMACCSrcAddr = config->srcMemAddr();
- pChannel->DMACCDestAddr = config->dstMemAddr();
- pChannel->DMACCControl
- = CxControl_TransferSize(config->transferSize())
- | CxControl_SBSize(_32)
- | CxControl_DBSize(_32)
- | CxControl_SWidth(config->transferWidth())
- | CxControl_DWidth(config->transferWidth())
- | CxControl_SI()
- | CxControl_DI()
- | CxControl_I();
- break;
-
- // Memory to peripheral
- case m2p:
- // Assign physical source
- pChannel->DMACCSrcAddr = config->srcMemAddr();
- // Assign peripheral destination address
- pChannel->DMACCDestAddr = (uint32_t)LUTPerAddr(config->dstConn());
- pChannel->DMACCControl
- = CxControl_TransferSize((uint32_t)config->transferSize())
- | CxControl_SBSize((uint32_t)LUTPerBurst(config->dstConn()))
- | CxControl_DBSize((uint32_t)LUTPerBurst(config->dstConn()))
- | CxControl_SWidth((uint32_t)LUTPerWid(config->dstConn()))
- | CxControl_DWidth((uint32_t)LUTPerWid(config->dstConn()))
- | CxControl_SI()
- | CxControl_I();
- break;
-
- // Peripheral to memory
- case p2m:
- // Assign peripheral source address
- pChannel->DMACCSrcAddr = (uint32_t)LUTPerAddr(config->srcConn());
- // Assign memory destination address
- pChannel->DMACCDestAddr = config->dstMemAddr();
- pChannel->DMACCControl
- = CxControl_TransferSize((uint32_t)config->transferSize())
- | CxControl_SBSize((uint32_t)LUTPerBurst(config->srcConn()))
- | CxControl_DBSize((uint32_t)LUTPerBurst(config->srcConn()))
- | CxControl_SWidth((uint32_t)LUTPerWid(config->srcConn()))
- | CxControl_DWidth((uint32_t)LUTPerWid(config->srcConn()))
- | CxControl_DI()
- | CxControl_I();
- break;
-
- // Peripheral to peripheral
- case p2p:
- // Assign peripheral source address
- pChannel->DMACCSrcAddr = (uint32_t)LUTPerAddr(config->srcConn());
- // Assign peripheral destination address
- pChannel->DMACCDestAddr = (uint32_t)LUTPerAddr(config->dstConn());
- pChannel->DMACCControl
- = CxControl_TransferSize((uint32_t)config->transferSize())
- | CxControl_SBSize((uint32_t)LUTPerBurst(config->srcConn()))
- | CxControl_DBSize((uint32_t)LUTPerBurst(config->dstConn()))
- | CxControl_SWidth((uint32_t)LUTPerWid(config->srcConn()))
- | CxControl_DWidth((uint32_t)LUTPerWid(config->dstConn()))
- | CxControl_I();
- break;
-
- // Do not support any more transfer type, return ERROR
- default:
- return Error;
- }
-
- // Re-Configure DMA Request Select for source peripheral
- if (config->srcConn() > 15) {
- LPC_SC->RESERVED9 |= (1 << (config->srcConn() - 16));
- }
- else {
- LPC_SC->RESERVED9 &= ~(1 << (config->srcConn() - 8));
- }
-
- // Re-Configure DMA Request Select for Destination peripheral
- if (config->dstConn() > 15) {
- LPC_SC->RESERVED9 |= (1 << (config->dstConn() - 16));
- }
- else {
- LPC_SC->RESERVED9 &= ~(1 << (config->dstConn() - 8));
- }
-
- // Enable DMA channels, little endian
- LPC_GPDMA->DMACConfig = _E;
- while (!(LPC_GPDMA->DMACConfig & _E));
-
- // Calculate absolute value for Connection number
- uint32_t tmp1 = config->srcConn(); tmp1 = ((tmp1 > 15) ? (tmp1 - 8) : tmp1);
- uint32_t tmp2 = config->dstConn(); tmp2 = ((tmp2 > 15) ? (tmp2 - 8) : tmp2);
-
- // Configure DMA Channel, enable Error Counter and Terminate counter
- pChannel->DMACCConfig
- = CxConfig_IE()
- | CxConfig_ITC()
- | CxConfig_TransferType((uint32_t)config->transferType())
- | CxConfig_SrcPeripheral(tmp1)
- | CxConfig_DestPeripheral(tmp2);
-
- return Ok;
-}
-
-}; // namespace AjK ends
-
+/*
+ Copyright (c) 2010 Andy Kirkham
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+*/
+
+#include "MODDMA.h"
+
+namespace AjK {
+
+uint32_t
+MODDMA::Setup(MODDMA_Config *config)
+{
+ LPC_GPDMACH_TypeDef *pChannel = (LPC_GPDMACH_TypeDef *)Channel_p( config->channelNum() );
+
+ if (LPC_GPDMA->DMACEnbldChns & EnbldChns_Ch( config->channelNum() )) {
+ return 0;
+ }
+
+ setups[config->channelNum() & 0x7] = config;
+
+ // Reset the Interrupt status
+ LPC_GPDMA->DMACIntTCClear = IntTCClear_Ch( config->channelNum() );
+ LPC_GPDMA->DMACIntErrClr = IntErrClr_Ch ( config->channelNum() );
+
+ // Clear DMA configure
+ pChannel->DMACCControl = 0x00;
+ pChannel->DMACCConfig = 0x00;
+
+ // Assign Linker List Item value
+ pChannel->DMACCLLI = config->dmaLLI();
+
+ // Set value to Channel Control Registers
+ switch (config->transferType()) {
+
+ // Memory to memory
+ case m2m:
+ // Assign physical source and destination address
+ pChannel->DMACCSrcAddr = config->srcMemAddr();
+ pChannel->DMACCDestAddr = config->dstMemAddr();
+ pChannel->DMACCControl
+ = CxControl_TransferSize(config->transferSize())
+ | CxControl_SBSize(_32)
+ | CxControl_DBSize(_32)
+ | CxControl_SWidth(config->transferWidth())
+ | CxControl_DWidth(config->transferWidth())
+ | CxControl_SI()
+ | CxControl_DI()
+ | CxControl_I();
+ break;
+
+ // Memory to peripheral
+ case m2p:
+ // Assign physical source
+ pChannel->DMACCSrcAddr = config->srcMemAddr();
+ // Assign peripheral destination address
+ pChannel->DMACCDestAddr = (uint32_t)LUTPerAddr(config->dstConn());
+ pChannel->DMACCControl
+ = CxControl_TransferSize((uint32_t)config->transferSize())
+ | CxControl_SBSize((uint32_t)LUTPerBurst(config->dstConn()))
+ | CxControl_DBSize((uint32_t)LUTPerBurst(config->dstConn()))
+ | CxControl_SWidth((uint32_t)LUTPerWid(config->dstConn()))
+ | CxControl_DWidth((uint32_t)LUTPerWid(config->dstConn()))
+ | CxControl_SI()
+ | CxControl_I();
+ break;
+
+ // Peripheral to memory
+ case p2m:
+ // Assign peripheral source address
+ pChannel->DMACCSrcAddr = (uint32_t)LUTPerAddr(config->srcConn());
+ // Assign memory destination address
+ pChannel->DMACCDestAddr = config->dstMemAddr();
+ pChannel->DMACCControl
+ = CxControl_TransferSize((uint32_t)config->transferSize())
+ | CxControl_SBSize((uint32_t)LUTPerBurst(config->srcConn()))
+ | CxControl_DBSize((uint32_t)LUTPerBurst(config->srcConn()))
+ | CxControl_SWidth((uint32_t)LUTPerWid(config->srcConn()))
+ | CxControl_DWidth((uint32_t)LUTPerWid(config->srcConn()))
+ | CxControl_DI()
+ | CxControl_I();
+ break;
+
+ // Peripheral to peripheral
+ case p2p:
+ // Assign peripheral source address
+ pChannel->DMACCSrcAddr = (uint32_t)LUTPerAddr(config->srcConn());
+ // Assign peripheral destination address
+ pChannel->DMACCDestAddr = (uint32_t)LUTPerAddr(config->dstConn());
+ pChannel->DMACCControl
+ = CxControl_TransferSize((uint32_t)config->transferSize())
+ | CxControl_SBSize((uint32_t)LUTPerBurst(config->srcConn()))
+ | CxControl_DBSize((uint32_t)LUTPerBurst(config->dstConn()))
+ | CxControl_SWidth((uint32_t)LUTPerWid(config->srcConn()))
+ | CxControl_DWidth((uint32_t)LUTPerWid(config->dstConn()))
+ | CxControl_I();
+ break;
+
+ // Do not support any more transfer type, return ERROR
+ default:
+ return 0;
+ }
+
+ // Re-Configure DMA Request Select for source peripheral
+ if (config->srcConn() > 15) {
+ LPC_SC->RESERVED9 |= (1 << (config->srcConn() - 16));
+ }
+ else {
+ LPC_SC->RESERVED9 &= ~(1 << (config->srcConn() - 8));
+ }
+
+ // Re-Configure DMA Request Select for Destination peripheral
+ if (config->dstConn() > 15) {
+ LPC_SC->RESERVED9 |= (1 << (config->dstConn() - 16));
+ }
+ else {
+ LPC_SC->RESERVED9 &= ~(1 << (config->dstConn() - 8));
+ }
+
+ // Enable DMA channels, little endian
+ LPC_GPDMA->DMACConfig = _E;
+ while (!(LPC_GPDMA->DMACConfig & _E));
+
+ // Calculate absolute value for Connection number
+ uint32_t tmp1 = config->srcConn(); tmp1 = ((tmp1 > 15) ? (tmp1 - 8) : tmp1);
+ uint32_t tmp2 = config->dstConn(); tmp2 = ((tmp2 > 15) ? (tmp2 - 8) : tmp2);
+
+ // Configure DMA Channel, enable Error Counter and Terminate counter
+ pChannel->DMACCConfig
+ = CxConfig_IE()
+ | CxConfig_ITC()
+ | CxConfig_TransferType((uint32_t)config->transferType())
+ | CxConfig_SrcPeripheral(tmp1)
+ | CxConfig_DestPeripheral(tmp2);
+
+ return pChannel->DMACCControl;
+}
+
+}; // namespace AjK ends
+