DS2484.cpp

00001 /**********************************************************************
00002 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
00003 *
00004 * Permission is hereby granted, free of charge, to any person obtaining a
00005 * copy of this software and associated documentation files (the "Software"),
00006 * to deal in the Software without restriction, including without limitation
00007 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
00008 * and/or sell copies of the Software, and to permit persons to whom the
00009 * Software is furnished to do so, subject to the following conditions:
00010 *
00011 * The above copyright notice and this permission notice shall be included
00012 * in all copies or substantial portions of the Software.
00013 *
00014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
00015 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00016 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
00017 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
00018 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
00019 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
00020 * OTHER DEALINGS IN THE SOFTWARE.
00021 *
00022 * Except as contained in this notice, the name of Maxim Integrated
00023 * Products, Inc. shall not be used except as stated in the Maxim Integrated
00024 * Products, Inc. Branding Policy.
00025 *
00026 * The mere transfer of this software does not imply any licenses
00027 * of trade secrets, proprietary technology, copyrights, patents,
00028 * trademarks, maskwork rights, or any other form of intellectual
00029 * property whatsoever. Maxim Integrated Products, Inc. retains all
00030 * ownership rights.
00031 **********************************************************************/
00032 
00033 #include "Masters/DS248x/DS2484/DS2484.h"
00034 
00035 using OneWire::OneWireMaster;
00036 using OneWire::DS2484;
00037 
00038 //*********************************************************************
00039 DS2484::DS2484(mbed::I2C & i2c_bus, uint8_t adrs) : DS248x(i2c_bus, adrs)
00040 {
00041 }
00042 
00043 //*********************************************************************
00044 OneWireMaster::CmdResult DS2484::adjustOwPort(OwAdjustParam param, uint8_t val)
00045 {
00046     OneWireMaster::CmdResult result;
00047 
00048     uint8_t read_port_config;
00049     uint8_t control_byte;
00050 
00051     control_byte = (((param & 0x0F) << 4) | (val & 0x0F));
00052 
00053     result = sendCommand (AdjustOwPortCmd, control_byte);
00054     if (result != Success)
00055     {
00056         return result;
00057     }
00058 
00059     result = readRegister(PortConfigReg, read_port_config, true);
00060     if (result != Success)
00061     {
00062         return result;
00063     }
00064 
00065     if ((control_byte & 0x0F) != read_port_config)
00066     {
00067         result = OneWireMaster::OperationFailure;
00068     }
00069 
00070     return result;
00071 }