Implementation of 1-Wire with added Alarm Search Functionality
Dependents: Max32630_One_Wire_Interface
Diff: Masters/TARGET_Maxim/MCU_OWM.cpp
- Revision:
- 140:6f32bf635c9d
diff -r f0e0a7976846 -r 6f32bf635c9d Masters/TARGET_Maxim/MCU_OWM.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Masters/TARGET_Maxim/MCU_OWM.cpp Fri Feb 17 19:09:11 2017 +0000 @@ -0,0 +1,202 @@ +/******************************************************************//** +* 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. +**********************************************************************/ + +#if defined(TARGET_MAX32620) || defined(TARGET_MAX32625) || defined(TARGET_MAX32630) + +#include "MCU_OWM.h" + +using namespace OneWire; + +MCU_OWM::MCU_OWM(bool extWeakPup, bool extStrongPup) +{ + m_sysCfgOwm.clk_scale = CLKMAN_SCALE_AUTO; + + if(extStrongPup) + { + m_owmCfg.ext_pu_mode = OWM_EXT_PU_ACT_LOW; + ioman_cfg_t cfg = IOMAN_OWM(1, 1); + m_sysCfgOwm.io_cfg = cfg; + } + else + { + m_owmCfg.ext_pu_mode = OWM_EXT_PU_UNUSED; + ioman_cfg_t cfg = IOMAN_OWM(1, 0); + m_sysCfgOwm.io_cfg = cfg; + } + + if(extWeakPup) + { + m_owmCfg.int_pu_en = 0; + } + else + { + m_owmCfg.int_pu_en = 1; + } + + m_owmCfg.long_line_mode = 0; + m_owmCfg.overdrive_spec = OWM_OVERDRIVE_UNUSED; +} + +//********************************************************************** +bool MCU_OWM::extStrongPup() const +{ + return m_owmCfg.ext_pu_mode == OWM_EXT_PU_ACT_LOW; +} + +//********************************************************************** +OneWireMaster::CmdResult MCU_OWM::OWInitMaster() +{ + OneWireMaster::CmdResult result = OneWireMaster::OperationFailure; + + if(OWM_Init(MXC_OWM, &m_owmCfg, &m_sysCfgOwm) == E_NO_ERROR) + { + result = OneWireMaster::Success; + } + + return result; +} + +//********************************************************************** +OneWireMaster::CmdResult MCU_OWM::OWReset() +{ + OneWireMaster::CmdResult result = OneWireMaster::OperationFailure; + + if(OWM_Reset(MXC_OWM)) + { + result = OneWireMaster::Success; + } + return result; +} + +//********************************************************************** +OneWireMaster::CmdResult MCU_OWM::OWTouchBitSetLevel(uint8_t & sendRecvBit, OWLevel afterLevel) +{ + OneWireMaster::CmdResult result = OneWireMaster::OperationFailure; + + sendRecvBit = OWM_TouchBit(MXC_OWM, sendRecvBit); + + if(extStrongPup()) + { + result = OWSetLevel(afterLevel); + } + else + { + result = OneWireMaster::Success; + } + + return result; +} + +//********************************************************************** +OneWireMaster::CmdResult MCU_OWM::OWWriteByteSetLevel(uint8_t sendByte, OWLevel afterLevel) +{ + OneWireMaster::CmdResult result = OneWireMaster::OperationFailure; + + if(OWM_WriteByte(MXC_OWM, sendByte) == E_NO_ERROR) + { + if(extStrongPup()) + { + result = OWSetLevel(afterLevel); + } + else + { + result = OneWireMaster::Success; + } + } + + return result; +} + +//********************************************************************** +OneWireMaster::CmdResult MCU_OWM::OWReadByteSetLevel(uint8_t & recvByte, OWLevel afterLevel) +{ + OneWireMaster::CmdResult result = OneWireMaster::OperationFailure; + + recvByte = OWM_ReadByte(MXC_OWM); + + if(extStrongPup()) + { + result = OWSetLevel(afterLevel); + } + else + { + result = OneWireMaster::Success; + } + + return result; +} + +//********************************************************************** +OneWireMaster::CmdResult MCU_OWM::OWSetSpeed(OWSpeed newSpeed) +{ + OneWireMaster::CmdResult result = OneWireMaster::Success; + + if(newSpeed == OneWireMaster::OverdriveSpeed) + { + OWM_SetOverdrive(MXC_OWM, 1); + } + else if(newSpeed == OneWireMaster::StandardSpeed) + { + OWM_SetOverdrive(MXC_OWM, 0); + } + else + { + result = OneWireMaster::OperationFailure; + } + + return result; +} + +//********************************************************************** +OneWireMaster::CmdResult MCU_OWM::OWSetLevel(OWLevel newLevel) +{ + OneWireMaster::CmdResult result = OneWireMaster::OperationFailure; + + if(extStrongPup()) + { + if(newLevel == OneWireMaster::StrongLevel) + { + OWM_SetExtPullup(MXC_OWM, 1); + } + else + { + OWM_SetExtPullup(MXC_OWM, 0); + } + + result = OneWireMaster::Success; + } + + return result; +} + +#endif /* TARGET_MAX326xx */ +