Diff: bmi160_i2c.cpp

Revision:

2:598e601e5846

Child:

3:e1770675eca4

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bmi160_i2c.cpp	Thu Dec 08 00:32:41 2016 +0000
@@ -0,0 +1,95 @@
+/**********************************************************************
+* Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+*
+* 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 MAXIM INTEGRATED 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.
+*
+* Except as contained in this notice, the name of Maxim Integrated
+* Products, Inc. shall not be used except as stated in the Maxim Integrated
+* Products, Inc. Branding Policy.
+*
+* The mere transfer of this software does not imply any licenses
+* of trade secrets, proprietary technology, copyrights, patents,
+* trademarks, maskwork rights, or any other form of intellectual
+* property whatsoever. Maxim Integrated Products, Inc. retains all
+* ownership rights.
+**********************************************************************/
+
+
+#include "bmi160.h"
+
+
+//*****************************************************************************
+BMI160_I2C::BMI160_I2C(I2C &i2cBus, uint8_t i2cAdrs)
+:m_i2cBus(i2cBus), m_Wadrs(i2cAdrs << 1), m_Radrs((i2cAdrs << 1) | 1)
+{
+}
+
+
+//*****************************************************************************   
+int32_t BMI160_I2C::readRegister(Registers reg, uint8_t *data)
+{
+    int32_t rtnVal = -1;
+    char packet[] = {static_cast<char>(reg)};
+    
+    if(m_i2cBus.write(m_Wadrs, packet, 1) == 0)
+    {
+        rtnVal = m_i2cBus.read(m_Radrs, reinterpret_cast<char *>(data), 1);
+    }
+    
+    return rtnVal;
+}
+
+
+//*****************************************************************************
+int32_t BMI160_I2C::writeRegister(Registers reg, const uint8_t data)
+{
+    char packet[] = {static_cast<char>(reg), static_cast<char>(data)};
+    
+    return m_i2cBus.write(m_Wadrs, packet, sizeof(packet));
+}
+
+
+//*****************************************************************************
+int32_t BMI160_I2C::readBlock(Registers startReg, Registers stopReg, uint8_t *data)
+{
+    int32_t rtnVal = -1;
+    int32_t numBytes = ((stopReg - startReg) + 1);
+    char packet[] = {static_cast<char>(startReg)};
+    
+    if(m_i2cBus.write(m_Wadrs, packet, 1) == 0)
+    {
+        rtnVal = m_i2cBus.read(m_Radrs, reinterpret_cast<char *>(data), numBytes);
+    }
+    
+    return rtnVal;
+}
+
+
+//*****************************************************************************
+int32_t BMI160_I2C::writeBlock(Registers startReg, Registers stopReg, const uint8_t *data)
+{
+    int32_t numBytes = ((stopReg - startReg) + 1);
+    char packet[numBytes + 1];
+    
+    packet[0] = static_cast<char>(startReg);
+    
+    memcpy(packet + 1, data, numBytes);
+    
+    return m_i2cBus.write(m_Wadrs, packet, sizeof(packet));
+}