Mike Fruge / OneWire

Implementation of 1-Wire with added Alarm Search Functionality

Dependents:   Max32630_One_Wire_Interface

Masters/DS248x/DS2484/DS2484.cpp@142:85b71cfd617e, 2019-08-13 (annotated)

Committer:
mfruge
Date:
Tue Aug 13 14:42:37 2019 +0000
Revision:
142:85b71cfd617e
Parent:
139:f0e0a7976846 
Added functions to ROMCommands to add Alarm Search functionality

Who changed what in which revision?

UserRevisionLine numberNew contents of line
j3 91:e80108bc870a 1 /**********************************************************************
j3 91:e80108bc870a 2 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
j3 91:e80108bc870a 3 *
j3 91:e80108bc870a 4 * Permission is hereby granted, free of charge, to any person obtaining a
j3 91:e80108bc870a 5 * copy of this software and associated documentation files (the "Software"),
j3 91:e80108bc870a 6 * to deal in the Software without restriction, including without limitation
j3 91:e80108bc870a 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
j3 91:e80108bc870a 8 * and/or sell copies of the Software, and to permit persons to whom the
j3 91:e80108bc870a 9 * Software is furnished to do so, subject to the following conditions:
j3 91:e80108bc870a 10 *
j3 91:e80108bc870a 11 * The above copyright notice and this permission notice shall be included
j3 91:e80108bc870a 12 * in all copies or substantial portions of the Software.
j3 91:e80108bc870a 13 *
j3 91:e80108bc870a 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
j3 91:e80108bc870a 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
j3 91:e80108bc870a 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
j3 91:e80108bc870a 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
j3 91:e80108bc870a 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
j3 91:e80108bc870a 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
j3 91:e80108bc870a 20 * OTHER DEALINGS IN THE SOFTWARE.
j3 91:e80108bc870a 21 *
j3 91:e80108bc870a 22 * Except as contained in this notice, the name of Maxim Integrated
j3 91:e80108bc870a 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
j3 91:e80108bc870a 24 * Products, Inc. Branding Policy.
j3 91:e80108bc870a 25 *
j3 91:e80108bc870a 26 * The mere transfer of this software does not imply any licenses
j3 91:e80108bc870a 27 * of trade secrets, proprietary technology, copyrights, patents,
j3 91:e80108bc870a 28 * trademarks, maskwork rights, or any other form of intellectual
j3 91:e80108bc870a 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
j3 91:e80108bc870a 30 * ownership rights.
j3 91:e80108bc870a 31 **********************************************************************/
j3 91:e80108bc870a 32
j3 104:3f48daed532b 33 #include "Masters/DS248x/DS2484/DS2484.h"
j3 91:e80108bc870a 34
j3 91:e80108bc870a 35 using OneWire::OneWireMaster;
j3 91:e80108bc870a 36 using OneWire::DS2484;
j3 91:e80108bc870a 37
j3 91:e80108bc870a 38 //*********************************************************************
j3 139:f0e0a7976846 39 DS2484::DS2484(mbed::I2C & i2c_bus, uint8_t adrs) : DS248x(i2c_bus, adrs)
j3 91:e80108bc870a 40 {
j3 91:e80108bc870a 41 }
j3 91:e80108bc870a 42
j3 91:e80108bc870a 43 //*********************************************************************
j3 91:e80108bc870a 44 OneWireMaster::CmdResult DS2484::adjustOwPort(OwAdjustParam param, uint8_t val)
j3 91:e80108bc870a 45 {
j3 91:e80108bc870a 46 OneWireMaster::CmdResult result;
j3 91:e80108bc870a 47
j3 91:e80108bc870a 48 uint8_t read_port_config;
j3 91:e80108bc870a 49 uint8_t control_byte;
j3 91:e80108bc870a 50
j3 91:e80108bc870a 51 control_byte = (((param & 0x0F) << 4) | (val & 0x0F));
j3 91:e80108bc870a 52
j3 91:e80108bc870a 53 result = sendCommand(AdjustOwPortCmd, control_byte);
j3 91:e80108bc870a 54 if (result != Success)
j3 91:e80108bc870a 55 {
j3 91:e80108bc870a 56 return result;
j3 91:e80108bc870a 57 }
j3 91:e80108bc870a 58
j3 91:e80108bc870a 59 result = readRegister(PortConfigReg, read_port_config, true);
j3 91:e80108bc870a 60 if (result != Success)
j3 91:e80108bc870a 61 {
j3 91:e80108bc870a 62 return result;
j3 91:e80108bc870a 63 }
j3 91:e80108bc870a 64
j3 91:e80108bc870a 65 if ((control_byte & 0x0F) != read_port_config)
j3 91:e80108bc870a 66 {
j3 91:e80108bc870a 67 result = OneWireMaster::OperationFailure;
j3 91:e80108bc870a 68 }
j3 91:e80108bc870a 69
j3 91:e80108bc870a 70 return result;
j3 91:e80108bc870a 71 }