Diff: FLUSH.cpp

Revision:

0:eb2522b41db8

Child:

2:b936b4acbd92

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FLUSH.cpp	Sat Nov 20 16:54:05 2010 +0000
@@ -0,0 +1,49 @@
+/*
+    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::flushBuffer(IrqType type)
+{
+    volatile char c __attribute__((unused));
+    volatile uint32_t iir __attribute__((unused));
+    
+    uint32_t ier = _IER;
+    switch(type) {
+        case TxIrq: _IER &= ~(1UL << 1); break;
+        case RxIrq: _IER &= ~(1UL << 0); break;
+    }
+    buffer_in[type]       = 0;
+    buffer_out[type]      = 0;
+    buffer_count[type]    = 0;
+    buffer_overflow[type] = 0;  
+    _FCR = MODSERIAL_FIFO_RX_RESET | MODSERIAL_FIFO_TX_RESET;
+    _FCR = MODSERIAL_FIFO_ENABLE;
+    iir = _IIR;
+    _IER = ier;
+}
+
+}; // namespace AjK ends