Implementation of 1-Wire with added Alarm Search Functionality
Dependents: Max32630_One_Wire_Interface
Slaves/Switches/DS2413/DS2413.cpp@104:3f48daed532b, 2016-08-02 (annotated)
- Committer:
- j3
- Date:
- Tue Aug 02 18:21:09 2016 +0000
- Revision:
- 104:3f48daed532b
- Parent:
- 94:d2dea35b25ea
- Child:
- 120:200109b73e3c
removed "OneWire" from absolute paths
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
j3 | 19:6d4c039a2d8e | 1 | /******************************************************************//** |
j3 | 19:6d4c039a2d8e | 2 | * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved. |
j3 | 19:6d4c039a2d8e | 3 | * |
j3 | 19:6d4c039a2d8e | 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
j3 | 19:6d4c039a2d8e | 5 | * copy of this software and associated documentation files (the "Software"), |
j3 | 19:6d4c039a2d8e | 6 | * to deal in the Software without restriction, including without limitation |
j3 | 19:6d4c039a2d8e | 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
j3 | 19:6d4c039a2d8e | 8 | * and/or sell copies of the Software, and to permit persons to whom the |
j3 | 19:6d4c039a2d8e | 9 | * Software is furnished to do so, subject to the following conditions: |
j3 | 19:6d4c039a2d8e | 10 | * |
j3 | 19:6d4c039a2d8e | 11 | * The above copyright notice and this permission notice shall be included |
j3 | 19:6d4c039a2d8e | 12 | * in all copies or substantial portions of the Software. |
j3 | 19:6d4c039a2d8e | 13 | * |
j3 | 19:6d4c039a2d8e | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
j3 | 19:6d4c039a2d8e | 15 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
j3 | 19:6d4c039a2d8e | 16 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
j3 | 19:6d4c039a2d8e | 17 | * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES |
j3 | 19:6d4c039a2d8e | 18 | * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
j3 | 19:6d4c039a2d8e | 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
j3 | 19:6d4c039a2d8e | 20 | * OTHER DEALINGS IN THE SOFTWARE. |
j3 | 19:6d4c039a2d8e | 21 | * |
j3 | 19:6d4c039a2d8e | 22 | * Except as contained in this notice, the name of Maxim Integrated |
j3 | 19:6d4c039a2d8e | 23 | * Products, Inc. shall not be used except as stated in the Maxim Integrated |
j3 | 19:6d4c039a2d8e | 24 | * Products, Inc. Branding Policy. |
j3 | 19:6d4c039a2d8e | 25 | * |
j3 | 19:6d4c039a2d8e | 26 | * The mere transfer of this software does not imply any licenses |
j3 | 19:6d4c039a2d8e | 27 | * of trade secrets, proprietary technology, copyrights, patents, |
j3 | 19:6d4c039a2d8e | 28 | * trademarks, maskwork rights, or any other form of intellectual |
j3 | 19:6d4c039a2d8e | 29 | * property whatsoever. Maxim Integrated Products, Inc. retains all |
j3 | 19:6d4c039a2d8e | 30 | * ownership rights. |
j3 | 19:6d4c039a2d8e | 31 | **********************************************************************/ |
j3 | 19:6d4c039a2d8e | 32 | |
j3 | 104:3f48daed532b | 33 | #include "Slaves/Switches/DS2413/DS2413.h" |
j3 | 19:6d4c039a2d8e | 34 | |
IanBenzMaxim | 76:84e6c4994e29 | 35 | using OneWire::DS2413; |
IanBenzMaxim | 76:84e6c4994e29 | 36 | using OneWire::OneWireMaster; |
j3 | 19:6d4c039a2d8e | 37 | |
IanBenzMaxim | 75:8b627804927c | 38 | enum DS2413_CMDS |
IanBenzMaxim | 75:8b627804927c | 39 | { |
IanBenzMaxim | 75:8b627804927c | 40 | PIO_ACCESS_READ = 0xF5, |
IanBenzMaxim | 75:8b627804927c | 41 | PIO_ACCESS_WRITE = 0x5A |
IanBenzMaxim | 75:8b627804927c | 42 | }; |
IanBenzMaxim | 75:8b627804927c | 43 | |
IanBenzMaxim | 75:8b627804927c | 44 | enum DS2413_PIO |
IanBenzMaxim | 75:8b627804927c | 45 | { |
IanBenzMaxim | 75:8b627804927c | 46 | PIOA, |
IanBenzMaxim | 75:8b627804927c | 47 | PIOB, |
IanBenzMaxim | 75:8b627804927c | 48 | PIOAB |
IanBenzMaxim | 75:8b627804927c | 49 | }; |
IanBenzMaxim | 75:8b627804927c | 50 | |
IanBenzMaxim | 77:529edb329ee0 | 51 | DS2413::DS2413(RandomAccessRomIterator &selector) : OneWireSlave(selector) |
j3 | 19:6d4c039a2d8e | 52 | { |
j3 | 19:6d4c039a2d8e | 53 | } |
j3 | 19:6d4c039a2d8e | 54 | |
j3 | 94:d2dea35b25ea | 55 | DS2413::CmdResult DS2413::pioAccessReadChA(uint8_t & val) |
j3 | 19:6d4c039a2d8e | 56 | { |
IanBenzMaxim | 74:23be10c32fa3 | 57 | DS2413::CmdResult result = OpFailure; |
IanBenzMaxim | 74:23be10c32fa3 | 58 | |
j3 | 94:d2dea35b25ea | 59 | result = pioAccessRead(val); |
IanBenzMaxim | 74:23be10c32fa3 | 60 | |
IanBenzMaxim | 74:23be10c32fa3 | 61 | val = (val & 0x01); |
IanBenzMaxim | 74:23be10c32fa3 | 62 | |
IanBenzMaxim | 74:23be10c32fa3 | 63 | return result; |
j3 | 19:6d4c039a2d8e | 64 | } |
j3 | 19:6d4c039a2d8e | 65 | |
j3 | 94:d2dea35b25ea | 66 | DS2413::CmdResult DS2413::pioAccessReadChB(uint8_t & val) |
j3 | 19:6d4c039a2d8e | 67 | { |
IanBenzMaxim | 74:23be10c32fa3 | 68 | DS2413::CmdResult result = OpFailure; |
IanBenzMaxim | 74:23be10c32fa3 | 69 | |
j3 | 94:d2dea35b25ea | 70 | result = pioAccessRead(val); |
IanBenzMaxim | 74:23be10c32fa3 | 71 | |
IanBenzMaxim | 74:23be10c32fa3 | 72 | val = ((val >> 2) & 0x01); |
IanBenzMaxim | 74:23be10c32fa3 | 73 | |
IanBenzMaxim | 74:23be10c32fa3 | 74 | return result; |
j3 | 19:6d4c039a2d8e | 75 | } |
j3 | 19:6d4c039a2d8e | 76 | |
j3 | 94:d2dea35b25ea | 77 | DS2413::CmdResult DS2413::pioAccessWriteChA(uint8_t val) |
j3 | 19:6d4c039a2d8e | 78 | { |
IanBenzMaxim | 74:23be10c32fa3 | 79 | DS2413::CmdResult result = OpFailure; |
IanBenzMaxim | 74:23be10c32fa3 | 80 | |
IanBenzMaxim | 74:23be10c32fa3 | 81 | uint8_t local_val = 0; |
IanBenzMaxim | 74:23be10c32fa3 | 82 | |
IanBenzMaxim | 74:23be10c32fa3 | 83 | //read current state of PIO |
j3 | 94:d2dea35b25ea | 84 | result = pioAccessRead(local_val); |
IanBenzMaxim | 74:23be10c32fa3 | 85 | |
IanBenzMaxim | 74:23be10c32fa3 | 86 | if (result == DS2413::Success) |
IanBenzMaxim | 74:23be10c32fa3 | 87 | { |
IanBenzMaxim | 74:23be10c32fa3 | 88 | //modify |
IanBenzMaxim | 74:23be10c32fa3 | 89 | //current state of pioB OR |
IanBenzMaxim | 74:23be10c32fa3 | 90 | //desired state of pioA OR |
IanBenzMaxim | 74:23be10c32fa3 | 91 | //bits[7:2] should all be 1, per datasheet |
IanBenzMaxim | 74:23be10c32fa3 | 92 | val = (0xFC | (((local_val >> 1) & 0x02) | (0x01 & val))); |
IanBenzMaxim | 74:23be10c32fa3 | 93 | |
IanBenzMaxim | 74:23be10c32fa3 | 94 | //write, bit[1:0] new state of pio |
j3 | 94:d2dea35b25ea | 95 | result = pioAccessWrite(val); |
IanBenzMaxim | 74:23be10c32fa3 | 96 | } |
IanBenzMaxim | 74:23be10c32fa3 | 97 | |
IanBenzMaxim | 74:23be10c32fa3 | 98 | return result; |
j3 | 19:6d4c039a2d8e | 99 | } |
j3 | 19:6d4c039a2d8e | 100 | |
j3 | 94:d2dea35b25ea | 101 | DS2413::CmdResult DS2413::pioAccessWriteChB(uint8_t val) |
j3 | 19:6d4c039a2d8e | 102 | { |
IanBenzMaxim | 74:23be10c32fa3 | 103 | DS2413::CmdResult result = OpFailure; |
IanBenzMaxim | 74:23be10c32fa3 | 104 | |
IanBenzMaxim | 74:23be10c32fa3 | 105 | uint8_t local_val = 0; |
IanBenzMaxim | 74:23be10c32fa3 | 106 | |
IanBenzMaxim | 74:23be10c32fa3 | 107 | //read current state of PIO |
j3 | 94:d2dea35b25ea | 108 | result = pioAccessRead(local_val); |
IanBenzMaxim | 74:23be10c32fa3 | 109 | |
IanBenzMaxim | 74:23be10c32fa3 | 110 | if (result == DS2413::Success) |
IanBenzMaxim | 74:23be10c32fa3 | 111 | { |
IanBenzMaxim | 74:23be10c32fa3 | 112 | //modify |
IanBenzMaxim | 74:23be10c32fa3 | 113 | //current state of pioA OR |
IanBenzMaxim | 74:23be10c32fa3 | 114 | //desired state of pioB OR |
IanBenzMaxim | 74:23be10c32fa3 | 115 | //bits[7:2] should all be 1, per datasheet |
IanBenzMaxim | 74:23be10c32fa3 | 116 | val = (0xFC | ((local_val & 0x01) | (0x02 & (val << 1)))); |
IanBenzMaxim | 74:23be10c32fa3 | 117 | |
IanBenzMaxim | 74:23be10c32fa3 | 118 | //write, bit[1:0] new state of pio |
j3 | 94:d2dea35b25ea | 119 | result = pioAccessWrite(val); |
IanBenzMaxim | 74:23be10c32fa3 | 120 | } |
IanBenzMaxim | 74:23be10c32fa3 | 121 | |
IanBenzMaxim | 74:23be10c32fa3 | 122 | return result; |
j3 | 19:6d4c039a2d8e | 123 | } |
j3 | 19:6d4c039a2d8e | 124 | |
j3 | 94:d2dea35b25ea | 125 | DS2413::CmdResult DS2413::pioAccessWriteChAB(uint8_t val) |
j3 | 54:08985bf69691 | 126 | { |
j3 | 94:d2dea35b25ea | 127 | return pioAccessWrite((0x03 & val) | 0xFC); |
j3 | 54:08985bf69691 | 128 | } |
j3 | 54:08985bf69691 | 129 | |
j3 | 94:d2dea35b25ea | 130 | DS2413::CmdResult DS2413::pioAccessRead(uint8_t & val) |
j3 | 19:6d4c039a2d8e | 131 | { |
IanBenzMaxim | 74:23be10c32fa3 | 132 | DS2413::CmdResult result = DS2413::OpFailure; |
IanBenzMaxim | 74:23be10c32fa3 | 133 | |
IanBenzMaxim | 77:529edb329ee0 | 134 | OneWireMaster::CmdResult ow_result = selectDevice(); |
IanBenzMaxim | 74:23be10c32fa3 | 135 | |
IanBenzMaxim | 74:23be10c32fa3 | 136 | if (ow_result == OneWireMaster::Success) |
j3 | 19:6d4c039a2d8e | 137 | { |
IanBenzMaxim | 77:529edb329ee0 | 138 | ow_result = master().OWWriteByte(PIO_ACCESS_READ); |
IanBenzMaxim | 74:23be10c32fa3 | 139 | |
IanBenzMaxim | 74:23be10c32fa3 | 140 | if (ow_result == OneWireMaster::Success) |
IanBenzMaxim | 74:23be10c32fa3 | 141 | { |
IanBenzMaxim | 77:529edb329ee0 | 142 | ow_result = master().OWReadByte(val); |
IanBenzMaxim | 74:23be10c32fa3 | 143 | |
IanBenzMaxim | 74:23be10c32fa3 | 144 | if (ow_result == OneWireMaster::Success) |
IanBenzMaxim | 74:23be10c32fa3 | 145 | { |
IanBenzMaxim | 74:23be10c32fa3 | 146 | result = DS2413::Success; |
IanBenzMaxim | 74:23be10c32fa3 | 147 | } |
IanBenzMaxim | 74:23be10c32fa3 | 148 | else |
IanBenzMaxim | 74:23be10c32fa3 | 149 | { |
IanBenzMaxim | 74:23be10c32fa3 | 150 | result = DS2413::CommsReadError; |
IanBenzMaxim | 74:23be10c32fa3 | 151 | } |
IanBenzMaxim | 74:23be10c32fa3 | 152 | } |
IanBenzMaxim | 74:23be10c32fa3 | 153 | else |
IanBenzMaxim | 74:23be10c32fa3 | 154 | { |
IanBenzMaxim | 74:23be10c32fa3 | 155 | result = DS2413::CommsWriteError; |
IanBenzMaxim | 74:23be10c32fa3 | 156 | } |
j3 | 19:6d4c039a2d8e | 157 | } |
IanBenzMaxim | 74:23be10c32fa3 | 158 | |
IanBenzMaxim | 74:23be10c32fa3 | 159 | return result; |
j3 | 19:6d4c039a2d8e | 160 | } |
j3 | 19:6d4c039a2d8e | 161 | |
j3 | 94:d2dea35b25ea | 162 | DS2413::CmdResult DS2413::pioAccessWrite(uint8_t val) |
j3 | 19:6d4c039a2d8e | 163 | { |
IanBenzMaxim | 74:23be10c32fa3 | 164 | DS2413::CmdResult result = DS2413::OpFailure; |
IanBenzMaxim | 74:23be10c32fa3 | 165 | |
IanBenzMaxim | 77:529edb329ee0 | 166 | OneWireMaster::CmdResult ow_result = selectDevice(); |
IanBenzMaxim | 74:23be10c32fa3 | 167 | |
IanBenzMaxim | 74:23be10c32fa3 | 168 | if (ow_result == OneWireMaster::Success) |
j3 | 19:6d4c039a2d8e | 169 | { |
IanBenzMaxim | 75:8b627804927c | 170 | uint8_t send_block[] = { PIO_ACCESS_WRITE, val, ~val }; |
IanBenzMaxim | 74:23be10c32fa3 | 171 | |
IanBenzMaxim | 77:529edb329ee0 | 172 | ow_result = master().OWWriteBlock(send_block, 3); |
IanBenzMaxim | 74:23be10c32fa3 | 173 | if (ow_result == OneWireMaster::Success) |
j3 | 19:6d4c039a2d8e | 174 | { |
IanBenzMaxim | 74:23be10c32fa3 | 175 | uint8_t expected_status = ((0x01 & val) | ((0x01 & val) << 1) | |
IanBenzMaxim | 74:23be10c32fa3 | 176 | ((0x02 & val) << 1) | ((0x02 & val) << 2)); |
IanBenzMaxim | 74:23be10c32fa3 | 177 | |
IanBenzMaxim | 74:23be10c32fa3 | 178 | uint8_t rcv_block[2]; |
IanBenzMaxim | 77:529edb329ee0 | 179 | ow_result = master().OWReadBlock(rcv_block, 2); |
IanBenzMaxim | 74:23be10c32fa3 | 180 | |
IanBenzMaxim | 74:23be10c32fa3 | 181 | if (ow_result == OneWireMaster::Success) |
IanBenzMaxim | 74:23be10c32fa3 | 182 | { |
IanBenzMaxim | 74:23be10c32fa3 | 183 | if ((rcv_block[0] == 0xAA) && ((rcv_block[1] & 0x0F) == expected_status)) |
IanBenzMaxim | 74:23be10c32fa3 | 184 | { |
IanBenzMaxim | 74:23be10c32fa3 | 185 | result = DS2413::Success; |
IanBenzMaxim | 74:23be10c32fa3 | 186 | } |
IanBenzMaxim | 74:23be10c32fa3 | 187 | } |
IanBenzMaxim | 74:23be10c32fa3 | 188 | else |
IanBenzMaxim | 74:23be10c32fa3 | 189 | { |
IanBenzMaxim | 74:23be10c32fa3 | 190 | result = DS2413::CommsReadError; |
IanBenzMaxim | 74:23be10c32fa3 | 191 | } |
j3 | 19:6d4c039a2d8e | 192 | } |
IanBenzMaxim | 74:23be10c32fa3 | 193 | else |
IanBenzMaxim | 74:23be10c32fa3 | 194 | { |
IanBenzMaxim | 74:23be10c32fa3 | 195 | result = DS2413::CommsWriteError; |
IanBenzMaxim | 74:23be10c32fa3 | 196 | } |
j3 | 19:6d4c039a2d8e | 197 | } |
IanBenzMaxim | 74:23be10c32fa3 | 198 | |
IanBenzMaxim | 74:23be10c32fa3 | 199 | return result; |
j3 | 19:6d4c039a2d8e | 200 | } |