Diff: I2cBusDevice.h

Revision:

9:e2333773718f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/I2cBusDevice.h	Thu Dec 18 03:20:52 2014 +0000
@@ -0,0 +1,58 @@
+/*
+ *  I2C device base class
+ *
+ *  A base class for all I2C devices.
+ *  This manages the device address and transfers
+ *
+ *  Copyright (c) 2010 Tedd OKANO
+ *  Released under the MIT License: http://mbed.org/license/mit
+ *
+ *  revision 1.0  15-Jan-2010   a. 1st release
+ *  revision 1.1  23-Jan-2010   a. The word "MBED_I2cBusDevice" is used instead of _I2cBusDevice_ to avoid symbol conflict
+ *                              b. copyright notice added
+ */
+
+#ifndef    MBED_I2cBusDevice
+#define    MBED_I2cBusDevice
+
+#include    "mbed.h"
+
+class I2cBusDevice {
+public:
+
+    I2cBusDevice( I2C *i2c, char dev_address ) {
+        bus          = i2c;
+        device       = dev_address;
+    }
+
+    ~I2cBusDevice() {
+    }
+
+    int write( char *data, int length ) {
+        return ( bus->write( device, data, length) );
+    }
+
+    int read( char *data, int length ) {
+        return ( bus->read( device, data, length) );
+    }
+
+    int read( char reg_ptr, char *data, int length ) {
+        if ( bus->write( device, &reg_ptr, 1 ) )
+            return ( 1 );
+
+        if ( bus->read( device, data, length ) )
+            return ( 1 );
+
+        return ( 0 );
+    }
+
+protected:
+    I2C     *bus;
+    char    device;
+
+private:
+    static char    i2c_error;
+}
+;
+
+#endif