Implementation of 1-Wire with added Alarm Search Functionality
Dependents: Max32630_One_Wire_Interface
Diff: Slaves/RomIterator.cpp
- Revision:
- 86:2ce08ca58b9e
- Parent:
- 81:e2a3ad98874e
- Child:
- 87:20e8f12f4f11
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Slaves/RomIterator.cpp Wed Jun 15 15:00:06 2016 -0500 @@ -0,0 +1,90 @@ +/******************************************************************//** +* 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 "RomIterator.h" + +using namespace OneWire; + +bool ForwardSearchRomIterator::lastDevice() const +{ + return searchState.last_device_flag; +} + +OneWireMaster::CmdResult ForwardSearchRomIterator::selectFirstDevice() +{ + return master().OWFirst(searchState); +} + +OneWireMaster::CmdResult ForwardSearchRomIterator::selectNextDevice() +{ + return master().OWNext(searchState); +} + +OneWireMaster::CmdResult ForwardSearchRomIterator::reselectCurrentDevice() +{ + return master().OWResume(); +} + +OneWireMaster::CmdResult ForwardSearchRomIterator::selectFirstDeviceInFamily(uint8_t familyCode) +{ + searchState.findFamily(familyCode); + return master().OWNext(searchState); +} + +OneWireMaster::CmdResult ForwardSearchRomIterator::selectNextFamilyDevice() +{ + searchState.skipCurrentFamily(); + return master().OWNext(searchState); +} + +OneWireMaster::CmdResult SingledropRomIterator::selectDevice(const RomId & romId) +{ + return selectDevice(); +} + +OneWireMaster::CmdResult MultidropRomIterator::selectDevice(const RomId & romId) +{ + OneWireMaster::CmdResult result; + + + if ((romId == lastRom) && (romId.familyCode() != 0x10)) + { + result = master().OWResume(); + } + else + { + result = master().OWMatchRom(romId); + lastRom = romId; + } + + return result; +}