Demonstration of possible usage of the NFC EEPROM class (including support for ST25DV NFC chip)
Dependencies: eeprom_driver
source/target/NfcControllerToEEPROMAdapter.cpp@6:462737ad2938, 2020-01-28 (annotated)
- Committer:
- apalmieri
- Date:
- Tue Jan 28 16:08:05 2020 +0000
- Revision:
- 6:462737ad2938
- Parent:
- 0:86f202e07059
Add ST25DV driver support
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 0:86f202e07059 | 1 | /* mbed Microcontroller Library |
mbed_official | 0:86f202e07059 | 2 | * Copyright (c) 2018-2018 ARM Limited |
mbed_official | 0:86f202e07059 | 3 | * |
mbed_official | 0:86f202e07059 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
mbed_official | 0:86f202e07059 | 5 | * you may not use this file except in compliance with the License. |
mbed_official | 0:86f202e07059 | 6 | * You may obtain a copy of the License at |
mbed_official | 0:86f202e07059 | 7 | * |
mbed_official | 0:86f202e07059 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
mbed_official | 0:86f202e07059 | 9 | * |
mbed_official | 0:86f202e07059 | 10 | * Unless required by applicable law or agreed to in writing, software |
mbed_official | 0:86f202e07059 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbed_official | 0:86f202e07059 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbed_official | 0:86f202e07059 | 13 | * See the License for the specific language governing permissions and |
mbed_official | 0:86f202e07059 | 14 | * limitations under the License. |
mbed_official | 0:86f202e07059 | 15 | */ |
mbed_official | 0:86f202e07059 | 16 | |
mbed_official | 0:86f202e07059 | 17 | #include "NfcControllerToEEPROMAdapter.h" |
mbed_official | 0:86f202e07059 | 18 | |
mbed_official | 0:86f202e07059 | 19 | #include <algorithm> |
mbed_official | 0:86f202e07059 | 20 | |
mbed_official | 0:86f202e07059 | 21 | #include "nfc/NFCController.h" |
mbed_official | 0:86f202e07059 | 22 | #include "nfc/NFCEEPROMDriver.h" |
mbed_official | 0:86f202e07059 | 23 | #include "nfc/NFCRemoteInitiator.h" |
mbed_official | 0:86f202e07059 | 24 | |
mbed_official | 0:86f202e07059 | 25 | namespace mbed { |
mbed_official | 0:86f202e07059 | 26 | namespace nfc { |
mbed_official | 0:86f202e07059 | 27 | |
mbed_official | 0:86f202e07059 | 28 | ControllerToEEPROMDriverAdapter::ControllerToEEPROMDriverAdapter( |
mbed_official | 0:86f202e07059 | 29 | NFCController &controller, |
mbed_official | 0:86f202e07059 | 30 | const Span<uint8_t> &buffer |
mbed_official | 0:86f202e07059 | 31 | ) : |
mbed_official | 0:86f202e07059 | 32 | _nfc_controller(controller), |
mbed_official | 0:86f202e07059 | 33 | _eeprom_buffer(buffer), |
mbed_official | 0:86f202e07059 | 34 | _current_eeprom_size(buffer.size()), |
mbed_official | 0:86f202e07059 | 35 | _session_opened(false) |
mbed_official | 0:86f202e07059 | 36 | { |
mbed_official | 0:86f202e07059 | 37 | } |
mbed_official | 0:86f202e07059 | 38 | |
mbed_official | 0:86f202e07059 | 39 | ControllerToEEPROMDriverAdapter::~ControllerToEEPROMDriverAdapter() |
mbed_official | 0:86f202e07059 | 40 | { |
mbed_official | 0:86f202e07059 | 41 | if (_nfc_remote_initiator.get()) { |
mbed_official | 0:86f202e07059 | 42 | _nfc_remote_initiator->set_delegate(NULL); |
mbed_official | 0:86f202e07059 | 43 | } |
mbed_official | 0:86f202e07059 | 44 | _nfc_controller.set_delegate(NULL); |
mbed_official | 0:86f202e07059 | 45 | _nfc_controller.cancel_discovery(); |
mbed_official | 0:86f202e07059 | 46 | } |
mbed_official | 0:86f202e07059 | 47 | |
mbed_official | 0:86f202e07059 | 48 | void ControllerToEEPROMDriverAdapter::reset() |
mbed_official | 0:86f202e07059 | 49 | { |
mbed_official | 0:86f202e07059 | 50 | _current_eeprom_size = _eeprom_buffer.size(); |
mbed_official | 0:86f202e07059 | 51 | memset(_eeprom_buffer.data(), 0, _eeprom_buffer.size()); |
mbed_official | 0:86f202e07059 | 52 | |
mbed_official | 0:86f202e07059 | 53 | if (_nfc_remote_initiator.get()) { |
mbed_official | 0:86f202e07059 | 54 | _nfc_remote_initiator->set_delegate(NULL); |
mbed_official | 0:86f202e07059 | 55 | _nfc_remote_initiator.reset(); |
mbed_official | 0:86f202e07059 | 56 | } |
mbed_official | 0:86f202e07059 | 57 | |
mbed_official | 0:86f202e07059 | 58 | _nfc_controller.initialize(); |
mbed_official | 0:86f202e07059 | 59 | _nfc_controller.set_delegate(this); |
mbed_official | 0:86f202e07059 | 60 | |
mbed_official | 0:86f202e07059 | 61 | nfc_rf_protocols_bitmask_t protocols = { 0 }; |
mbed_official | 0:86f202e07059 | 62 | protocols.target_iso_dep = 1; |
mbed_official | 0:86f202e07059 | 63 | _nfc_controller.configure_rf_protocols(protocols); |
mbed_official | 0:86f202e07059 | 64 | |
mbed_official | 0:86f202e07059 | 65 | _nfc_controller.start_discovery(); |
mbed_official | 0:86f202e07059 | 66 | } |
mbed_official | 0:86f202e07059 | 67 | |
mbed_official | 0:86f202e07059 | 68 | size_t ControllerToEEPROMDriverAdapter::read_max_size() |
mbed_official | 0:86f202e07059 | 69 | { |
mbed_official | 0:86f202e07059 | 70 | return _eeprom_buffer.size(); |
mbed_official | 0:86f202e07059 | 71 | } |
mbed_official | 0:86f202e07059 | 72 | |
mbed_official | 0:86f202e07059 | 73 | void ControllerToEEPROMDriverAdapter::start_session(bool force) |
mbed_official | 0:86f202e07059 | 74 | { |
mbed_official | 0:86f202e07059 | 75 | _session_opened = true; |
mbed_official | 0:86f202e07059 | 76 | delegate()->on_session_started(true); |
mbed_official | 0:86f202e07059 | 77 | } |
mbed_official | 0:86f202e07059 | 78 | |
mbed_official | 0:86f202e07059 | 79 | void ControllerToEEPROMDriverAdapter::end_session() |
mbed_official | 0:86f202e07059 | 80 | { |
mbed_official | 0:86f202e07059 | 81 | _session_opened = false; |
mbed_official | 0:86f202e07059 | 82 | delegate()->on_session_ended(true); |
mbed_official | 0:86f202e07059 | 83 | } |
mbed_official | 0:86f202e07059 | 84 | |
mbed_official | 0:86f202e07059 | 85 | void ControllerToEEPROMDriverAdapter::read_bytes( |
mbed_official | 0:86f202e07059 | 86 | uint32_t address, uint8_t *bytes, size_t count |
mbed_official | 0:86f202e07059 | 87 | ) { |
mbed_official | 0:86f202e07059 | 88 | if (address >= _current_eeprom_size) { |
mbed_official | 0:86f202e07059 | 89 | delegate()->on_bytes_read(0); |
mbed_official | 0:86f202e07059 | 90 | return; |
mbed_official | 0:86f202e07059 | 91 | } |
mbed_official | 0:86f202e07059 | 92 | |
mbed_official | 0:86f202e07059 | 93 | size_t size = std::min(count, (size_t) (_current_eeprom_size - address)); |
mbed_official | 0:86f202e07059 | 94 | memcpy(bytes, _eeprom_buffer.data() + address, size); |
mbed_official | 0:86f202e07059 | 95 | delegate()->on_bytes_read(size); |
mbed_official | 0:86f202e07059 | 96 | } |
mbed_official | 0:86f202e07059 | 97 | |
mbed_official | 0:86f202e07059 | 98 | void ControllerToEEPROMDriverAdapter::write_bytes( |
mbed_official | 0:86f202e07059 | 99 | uint32_t address, const uint8_t *bytes, size_t count |
mbed_official | 0:86f202e07059 | 100 | ) { |
mbed_official | 0:86f202e07059 | 101 | if (address >= _current_eeprom_size) { |
mbed_official | 0:86f202e07059 | 102 | delegate()->on_bytes_written(0); |
mbed_official | 0:86f202e07059 | 103 | return; |
mbed_official | 0:86f202e07059 | 104 | } |
mbed_official | 0:86f202e07059 | 105 | |
mbed_official | 0:86f202e07059 | 106 | size_t size = std::min(count, (size_t) (_current_eeprom_size - address)); |
mbed_official | 0:86f202e07059 | 107 | memcpy(_eeprom_buffer.data() + address, bytes, size); |
mbed_official | 0:86f202e07059 | 108 | delegate()->on_bytes_written(size); |
mbed_official | 0:86f202e07059 | 109 | } |
mbed_official | 0:86f202e07059 | 110 | |
mbed_official | 0:86f202e07059 | 111 | void ControllerToEEPROMDriverAdapter::read_size() |
mbed_official | 0:86f202e07059 | 112 | { |
mbed_official | 0:86f202e07059 | 113 | delegate()->on_size_read(true, _current_eeprom_size); |
mbed_official | 0:86f202e07059 | 114 | } |
mbed_official | 0:86f202e07059 | 115 | |
mbed_official | 0:86f202e07059 | 116 | void ControllerToEEPROMDriverAdapter::write_size(size_t count) |
mbed_official | 0:86f202e07059 | 117 | { |
mbed_official | 0:86f202e07059 | 118 | if (count > (size_t) _eeprom_buffer.size()) { |
mbed_official | 0:86f202e07059 | 119 | delegate()->on_size_written(false); |
mbed_official | 0:86f202e07059 | 120 | } else { |
mbed_official | 0:86f202e07059 | 121 | _current_eeprom_size = count; |
mbed_official | 0:86f202e07059 | 122 | delegate()->on_size_written(true); |
mbed_official | 0:86f202e07059 | 123 | } |
mbed_official | 0:86f202e07059 | 124 | } |
mbed_official | 0:86f202e07059 | 125 | |
mbed_official | 0:86f202e07059 | 126 | void ControllerToEEPROMDriverAdapter::erase_bytes(uint32_t address, size_t count) |
mbed_official | 0:86f202e07059 | 127 | { |
mbed_official | 0:86f202e07059 | 128 | if (address >= _current_eeprom_size) { |
mbed_official | 0:86f202e07059 | 129 | delegate()->on_bytes_erased(0); |
mbed_official | 0:86f202e07059 | 130 | return; |
mbed_official | 0:86f202e07059 | 131 | } |
mbed_official | 0:86f202e07059 | 132 | |
mbed_official | 0:86f202e07059 | 133 | size_t size = std::min(count, (size_t) (_current_eeprom_size - address)); |
mbed_official | 0:86f202e07059 | 134 | memset(_eeprom_buffer.data() + address, 0, size); |
mbed_official | 0:86f202e07059 | 135 | delegate()->on_bytes_erased(size); |
mbed_official | 0:86f202e07059 | 136 | } |
mbed_official | 0:86f202e07059 | 137 | |
mbed_official | 0:86f202e07059 | 138 | /* ------------------------------------------------------------------------ |
mbed_official | 0:86f202e07059 | 139 | * Implementation of NFCRemoteInitiator::Delegate |
mbed_official | 0:86f202e07059 | 140 | */ |
mbed_official | 0:86f202e07059 | 141 | void ControllerToEEPROMDriverAdapter::on_connected() { } |
mbed_official | 0:86f202e07059 | 142 | |
mbed_official | 0:86f202e07059 | 143 | void ControllerToEEPROMDriverAdapter::on_disconnected() |
mbed_official | 0:86f202e07059 | 144 | { |
mbed_official | 0:86f202e07059 | 145 | // reset the state of the remote initiator |
mbed_official | 0:86f202e07059 | 146 | _nfc_remote_initiator->set_delegate(NULL); |
mbed_official | 0:86f202e07059 | 147 | _nfc_remote_initiator.reset(); |
mbed_official | 0:86f202e07059 | 148 | |
mbed_official | 0:86f202e07059 | 149 | // restart peer discovery |
mbed_official | 0:86f202e07059 | 150 | _nfc_controller.start_discovery(); |
mbed_official | 0:86f202e07059 | 151 | } |
mbed_official | 0:86f202e07059 | 152 | |
mbed_official | 0:86f202e07059 | 153 | void ControllerToEEPROMDriverAdapter::parse_ndef_message(const Span<const uint8_t> &buffer) |
mbed_official | 0:86f202e07059 | 154 | { |
mbed_official | 0:86f202e07059 | 155 | if (_session_opened) { |
mbed_official | 0:86f202e07059 | 156 | return; |
mbed_official | 0:86f202e07059 | 157 | } |
mbed_official | 0:86f202e07059 | 158 | |
mbed_official | 0:86f202e07059 | 159 | if (buffer.size() > _eeprom_buffer.size()) { |
mbed_official | 0:86f202e07059 | 160 | return; |
mbed_official | 0:86f202e07059 | 161 | } |
mbed_official | 0:86f202e07059 | 162 | |
mbed_official | 0:86f202e07059 | 163 | _current_eeprom_size = buffer.size(); |
mbed_official | 0:86f202e07059 | 164 | memcpy(_eeprom_buffer.data(), buffer.data(), _current_eeprom_size); |
mbed_official | 0:86f202e07059 | 165 | } |
mbed_official | 0:86f202e07059 | 166 | |
mbed_official | 0:86f202e07059 | 167 | size_t ControllerToEEPROMDriverAdapter::build_ndef_message(const Span<uint8_t> &buffer) |
mbed_official | 0:86f202e07059 | 168 | { |
mbed_official | 0:86f202e07059 | 169 | if (_session_opened) { |
mbed_official | 0:86f202e07059 | 170 | return 0; |
mbed_official | 0:86f202e07059 | 171 | } |
mbed_official | 0:86f202e07059 | 172 | |
mbed_official | 0:86f202e07059 | 173 | if ((size_t) buffer.size() < _current_eeprom_size) { |
mbed_official | 0:86f202e07059 | 174 | return 0; |
mbed_official | 0:86f202e07059 | 175 | } |
mbed_official | 0:86f202e07059 | 176 | |
mbed_official | 0:86f202e07059 | 177 | memcpy(buffer.data(), _eeprom_buffer.data(), _current_eeprom_size); |
mbed_official | 0:86f202e07059 | 178 | return _current_eeprom_size; |
mbed_official | 0:86f202e07059 | 179 | } |
mbed_official | 0:86f202e07059 | 180 | |
mbed_official | 0:86f202e07059 | 181 | /* ------------------------------------------------------------------------ |
mbed_official | 0:86f202e07059 | 182 | * Implementation of NFCController::Delegate |
mbed_official | 0:86f202e07059 | 183 | */ |
mbed_official | 0:86f202e07059 | 184 | void ControllerToEEPROMDriverAdapter::on_discovery_terminated( |
mbed_official | 0:86f202e07059 | 185 | nfc_discovery_terminated_reason_t reason |
mbed_official | 0:86f202e07059 | 186 | ) { |
mbed_official | 0:86f202e07059 | 187 | if(reason != nfc_discovery_terminated_completed) { |
mbed_official | 0:86f202e07059 | 188 | _nfc_controller.start_discovery(); |
mbed_official | 0:86f202e07059 | 189 | } |
mbed_official | 0:86f202e07059 | 190 | } |
mbed_official | 0:86f202e07059 | 191 | |
mbed_official | 0:86f202e07059 | 192 | void ControllerToEEPROMDriverAdapter::on_nfc_initiator_discovered( |
mbed_official | 0:86f202e07059 | 193 | const SharedPtr<NFCRemoteInitiator> &nfc_initiator |
mbed_official | 0:86f202e07059 | 194 | ) { |
mbed_official | 0:86f202e07059 | 195 | // setup the local remote initiator |
mbed_official | 0:86f202e07059 | 196 | _nfc_remote_initiator = nfc_initiator; |
mbed_official | 0:86f202e07059 | 197 | _nfc_remote_initiator->set_delegate(this); |
mbed_official | 0:86f202e07059 | 198 | _nfc_remote_initiator->connect(); |
mbed_official | 0:86f202e07059 | 199 | } |
mbed_official | 0:86f202e07059 | 200 | |
mbed_official | 0:86f202e07059 | 201 | } // namespace nfc |
mbed_official | 0:86f202e07059 | 202 | } // namespace mbed |
mbed_official | 0:86f202e07059 | 203 |