Diploma Thesis in Aerospace Engineering, January 2014

Diff: MODSERIAL/ISR_RX.cpp

Revision:

0:1447d2f773db

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MODSERIAL/ISR_RX.cpp	Wed Jul 09 07:35:50 2014 +0000
@@ -0,0 +1,60 @@
+/*
+    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::isr_rx(void)
+{
+    if (! _base || buffer_size[RxIrq] == 0 || buffer[RxIrq] == (char *)NULL) {
+        _isr[RxIrq].call(&this->callbackInfo); 
+        return;
+    } 
+    
+    while( MODSERIAL_RBR_HAS_DATA ) {
+        rxc = (char)(_RBR & 0xFF); 
+        if ( MODSERIAL_RX_BUFFER_FULL ) {
+            buffer_overflow[RxIrq] = rxc; // Oh dear, no room in buffer.
+            _isr[RxOvIrq].call(&this->callbackInfo);
+        }
+        else {
+            if (buffer[RxIrq] != (char *)NULL) {
+                buffer[RxIrq][buffer_in[RxIrq]] = rxc;
+                buffer_count[RxIrq]++; 
+                buffer_in[RxIrq]++;
+                if (buffer_in[RxIrq] >= buffer_size[RxIrq]) {
+                    buffer_in[RxIrq] = 0;
+                }
+            }  
+            _isr[RxIrq].call(&this->callbackInfo); 
+        }
+        if (auto_detect_char == rxc) {
+            _isr[RxAutoDetect].call(&this->callbackInfo);
+        }
+    }    
+}
+
+}; // namespace AjK ends
+