INIT.cpp

00001 /*
00002     Copyright (c) 2010 Andy Kirkham
00003  
00004     Permission is hereby granted, free of charge, to any person obtaining a copy
00005     of this software and associated documentation files (the "Software"), to deal
00006     in the Software without restriction, including without limitation the rights
00007     to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008     copies of the Software, and to permit persons to whom the Software is
00009     furnished to do so, subject to the following conditions:
00010  
00011     The above copyright notice and this permission notice shall be included in
00012     all copies or substantial portions of the Software.
00013  
00014     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015     IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00017     AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00018     LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00019     OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00020     THE SOFTWARE.
00021 */
00022 
00023 #include "MODSERIAL.h"
00024 #include "MACROS.h"
00025 
00026 
00027 namespace AjK {
00028 
00029 void
00030 MODSERIAL::init( int txSize, int rxSize, PinName rx )
00031 {
00032     disableIrq();
00033     
00034     callbackInfo.setSerial(this);
00035 
00036 #ifdef __LPC11UXX_H__
00037 
00038     _base = LPC_USART;
00039     
00040 #else    
00041     switch( _serial.index ) {
00042 #ifdef TARGET_NXP
00043         case 0: _base = LPC_UART0; break;
00044         case 1: _base = LPC_UART1; break;
00045         case 2: _base = LPC_UART2; break;
00046         case 3: _base = LPC_UART3; break;
00047 #elif defined TARGET_STM
00048         case 0: _base = USART1_BASE; break;
00049         case 1: _base = USART2_BASE; break;
00050         case 2: _base = USART3_BASE; break;
00051         case 3: _base = USART4_BASE; break;
00052         case 4: _base = USART5_BASE; break;
00053         case 5: _base = USART6_BASE; break;
00054 #else
00055     error("MODSERIAL is not supported for your target");
00056 #endif
00057         default: _base = NULL;      break;
00058     }
00059 #endif
00060     
00061     dmaSendChannel  = -1;
00062     moddma_p        = (void *)NULL;
00063     
00064     if ( _base != NULL ) {
00065         buffer_size[RxIrq]     = rxSize;
00066         buffer[RxIrq]          = rxSize > 0 ? (char *)malloc(buffer_size[RxIrq]) : (char *)NULL;
00067         buffer_in[RxIrq]       = 0;
00068         buffer_out[RxIrq]      = 0;
00069         buffer_count[RxIrq]    = 0;
00070         buffer_overflow[RxIrq] = 0;
00071         Serial::attach( this, &MODSERIAL::isr_rx, Serial::RxIrq );        
00072         
00073         buffer_size[TxIrq]     = txSize;
00074         buffer[TxIrq]          = txSize > 0 ? (char *)malloc(buffer_size[TxIrq]) : (char *)NULL;
00075         buffer_in[TxIrq]       = 0;
00076         buffer_out[TxIrq]      = 0;
00077         buffer_count[TxIrq]    = 0;
00078         buffer_overflow[TxIrq] = 0;
00079         Serial::attach( this, &MODSERIAL::isr_tx, Serial::TxIrq );
00080     }
00081     else {
00082         error("MODSERIAL must have a defined UART to function.");
00083     }
00084     
00085     _FCR = MODSERIAL_FIFO_ENABLE | MODSERIAL_FIFO_RX_RESET | MODSERIAL_FIFO_TX_RESET;
00086     
00087     auto_detect_char = 0;
00088     
00089     enableIrq();
00090 }
00091 
00092 }; // namespace AjK ends