Diff: MCP23S17.h

Revision:

8:841b19734955

Parent:

7:53498e24592c

Child:

9:068b1e8909bb

--- a/MCP23S17.h	Sun Aug 22 15:37:25 2010 +0000
+++ b/MCP23S17.h	Mon Aug 23 10:57:59 2010 +0000
@@ -2,7 +2,7 @@
 * Copyright (c) 2010 Romilly Cocking
 * Released under the MIT License: http://mbed.org/license/mit
 *
-* version 0.2
+* version 0.3
 */
 #include "mbed.h"
 
@@ -33,27 +33,26 @@
 #define IOCON_HAEN  0x08 // Hardware address enable
 
 enum Polarity { ACTIVE_LOW , ACTIVE_HIGH };
+enum Port { PORT_A, PORT_B };
 
 class MCP23S17 {
 public:
     MCP23S17(SPI& spi, PinName ncs, char writeOpcode);
-    void directionA(char direction);
-    void directionB(char direction);
-    void interruptEnableA(char interruptsEnabledMask);
-    void interruptEnableB(char interruptsEnabledMask);
+    void direction(Port port, char direction);
+    void interruptEnable(Port port, char interruptsEnabledMask);
     void interruptPolarity(Polarity polarity);
     void mirrorInterrupts(bool mirror);
-    void defaultValueA(char valuesToCompare);
-    void interruptControlA(char interruptContolBits);
-    char inputA();
-    char inputB();
-    void outputA(char byte);
-    void outputB(char byte);
+    void defaultValue(Port port, char valuesToCompare);
+    void interruptControl(Port port, char interruptContolBits);
+    char read(Port port);
+    void write(Port port, char byte);
 protected:
     SPI& _spi;
     DigitalOut _ncs;
     void _init();
+    void _write(Port port, char address, char data);
     void _write(char address, char data);
+    char _read(Port port, char address);
     char _read(char address);
     char _readOpcode;
     char _writeOpcode;