Diff: INIT.cpp

Revision:

0:eb2522b41db8

Child:

2:b936b4acbd92

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/INIT.cpp	Sat Nov 20 16:54:05 2010 +0000
@@ -0,0 +1,78 @@
+/*
+    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 "MODSERIAL.h"
+#include "MACROS.h"
+
+namespace AjK {
+
+void
+MODSERIAL::init(int txSize, int rxSize)
+{
+    disableIrq();
+    
+    setBase();
+    
+    if (_base != NULL) {
+        buffer_size[RxIrq]     = rxSize;
+        buffer[RxIrq]          = (char *)malloc(buffer_size[RxIrq]);    
+        buffer_in[RxIrq]       = 0;
+        buffer_out[RxIrq]      = 0;
+        buffer_count[RxIrq]    = 0;
+        buffer_overflow[RxIrq] = 0;
+        Serial::attach(this, &MODSERIAL::isr_rx, Serial::RxIrq);        
+        
+        buffer_size[TxIrq]     = txSize;
+        buffer[TxIrq]          = (char *)malloc(buffer_size[TxIrq]);
+        buffer_in[TxIrq]       = 0;
+        buffer_out[TxIrq]      = 0;
+        buffer_count[TxIrq]    = 0;
+        buffer_overflow[TxIrq] = 0;
+        Serial::attach(this, &MODSERIAL::isr_tx, Serial::TxIrq);
+    }
+    
+    if (!txBufferSane()) {
+        error("Failed to allocate memory for TX buffer");
+    }
+    
+    if (!rxBufferSane()) {
+        error("Failed to allocate memory for RX buffer");
+    }
+    
+    _FCR = MODSERIAL_FIFO_ENABLE | MODSERIAL_FIFO_RX_RESET | MODSERIAL_FIFO_TX_RESET;
+    
+    enableIrq();
+}
+
+void 
+MODSERIAL::setBase(void)
+{
+    switch(_uidx) {
+        case 0:   _base = LPC_UART0; break;
+        case 1:   _base = LPC_UART1; break;
+        case 2:   _base = LPC_UART2; break;
+        case 3:   _base = LPC_UART3; break;
+        default : _base = NULL;      break;
+    }
+}
+
+}; // namespace AjK ends