Committing dev changes

Author: Main Push Robot

src/libs/Generic-easyC/easyC.h

@@ -0,0 +1,137 @@
+/**
+ **************************************************
+ *
+ * @file        easyC.hpp
+ * @brief       Basic funtions for easyC libraries
+ *
+ *
+ * @copyright GNU General Public License v3.0
+ * @authors     Goran Juric @ soldered.com
+ ***************************************************/
+
+#ifndef __EASYC__
+#define __EASYC__
+
+#include "Arduino.h"
+#include "Wire.h"
+
+#define ANALOG_READ_REG 0
+#define DIGITAL_READ_REG 1
+
+class EasyC
+{
+public:
+    /**
+     * @brief       Main constructor for easyC version
+     *
+     */
+    EasyC()
+    {
+        native = 0;
+    }
+
+    /**
+     * @brief       Initializes sensors on native or easyC on default address
+     */
+    void begin()
+    {
+        if (native)
+            initializeNative();
+        else
+            begin(defaultAddress);
+        beginDone = 1;
+    }
+
+    /**
+     * @brief                  Initializes sensors on supplied i2c address
+     *
+     * @param uint8_t _address Custom easyC sensor address
+     */
+    void begin(uint8_t _address)
+    {
+        address = _address;
+
+        Wire.begin();
+
+        beginDone = 1;
+    }
+
+    int native = 0;
+    bool beginDone = 0;
+
+    virtual void initializeNative() = 0;
+
+    int err;
+
+    char address;
+    const char defaultAddress = 0x30;
+
+    /**
+     * @brief                Private function to send a single byte to sensor
+     *
+     * @param  char regAddr  Address of register to access later
+     *
+     * @return int           Standard endTransmission error codes
+     */
+    int sendAddress(char regAddr)
+    {
+        Wire.beginTransmission(address);
+        Wire.write(regAddr);
+
+        return err = Wire.endTransmission();
+    }
+
+    /**
+     * @brief           Private function to read n bytes over i2c
+     *
+     * @param  char a[] Array to read data to
+     * @param  int n    Number of bytes to read
+     *
+     * @return int      Error code, always 0
+     */
+    int readData(char a[], int n)
+    {
+        Wire.requestFrom(address, n);
+        Wire.readBytes(a, n);
+
+        return 0;
+    }
+
+    /**
+     * @brief                   Private function to send over i2c and then read n bytes
+     *
+     * @param char regAddr      Address of register to access data from
+     * @param char a            Array to put data in
+     * @param size_t n          Size of data to read
+     *
+     * @return int              0 if read successfuly, error code from endTransmission if not
+     */
+    int readRegister(char regAddr, char a[], size_t n)
+    {
+        if (sendAddress(regAddr))
+            return err;
+
+        if (readData(a, n))
+            return err;
+
+        return 0;
+    }
+
+    /**
+     * @brief           Private function to write n bytes over i2c
+     *
+     * @param char a[]  Array to read data from
+     * @param int n     Number of bytes to read
+     *
+     * @return int       Standard endTransmission error codes
+     */
+    int sendData(const uint8_t *a, int n)
+    {
+        Wire.beginTransmission(address);
+        Wire.write(a, n);
+
+        return err = Wire.endTransmission();
+    }
+};
+
+#endif