Diff: MCP23017_I2C/AbstractGpioExpender.h

Revision:

0:1d91b4046326

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MCP23017_I2C/AbstractGpioExpender.h	Wed Jan 07 09:49:59 2015 +0000
@@ -0,0 +1,43 @@
+#pragma once
+
+#include <list>
+
+#include <mbed.h>
+
+#define GPA0    0
+#define GPA1    1
+#define GPA2    2
+#define GPA3    3
+#define GPA4    4
+#define GPA5    5
+#define GPA6    6
+#define GPA7    7
+#define GPB0    8
+#define GPB1    9
+#define GPB2    10
+#define GPB3    11
+#define GPB4    12
+#define GPB5    13
+#define GPB6    14
+#define GPB7    15
+
+class AbstractGpioExpender {
+public:
+    virtual void reset() = 0;
+
+    virtual void setupInterrupts(const unsigned char p_mirroring, const unsigned char p_open, const unsigned char p_polarity) = 0;
+    virtual void setupInterruptPin(const unsigned char p_pinId, const unsigned char p_mode) = 0;
+
+    virtual int read(const unsigned char p_pinId) = 0;
+    virtual int write(const unsigned char p_pinId, const unsigned char p_value) = 0;
+    
+    virtual unsigned char createBus(const std::list<unsigned char> p_lines, const PinMode p_mode = PullNone) = 0;
+    virtual void deleteBus(const unsigned char p_busId) = 0;
+    virtual int busRead(const unsigned char p_busId) = 0;
+    virtual int busWrite(const unsigned char p_busId, const unsigned char p_value) = 0;
+    
+protected:
+    virtual bool writeRegister(const unsigned char p_registerId, const unsigned char p_value) = 0;
+    virtual bool readRegister(const unsigned char p_registerId, unsigned char * p_value) = 0;
+
+}; // End of class AbstractGpioExpender 
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