mirror of https://github.com/ARMmbed/mbed-os.git
72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
/*
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* Copyright (c) 2019-2019 ARM Limited. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an AS IS BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef AT24MAC_S2LP_H
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#define AT24MAC_S2LP_H
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#include "PinNames.h"
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#if DEVICE_I2C
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#ifdef AT24MAC
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#include "I2C.h"
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#include "drivers/DigitalInOut.h"
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#include "platform/mbed_wait_api.h"
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/*
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* AT24MAC drivers.
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*
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* This is a EEPROM chip designed to contain factory programmed read-only EUI-64 or EUI-48,
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* a 128bit serial number and some user programmable EEPROM.
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*
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* AT24MAC602 contains EUI-64, use read_eui64()
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* AT24MAC402 contains EUI-64, use read_eui48()
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*
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* NOTE: You cannot use both EUI-64 and EUI-48. Chip contains only one of those.
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*/
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class AT24Mac_s2lp {
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public:
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AT24Mac_s2lp(PinName sda, PinName scl);
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/**
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* Read unique serial number from chip.
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* \param buf pointer to write serial number to. Must have space for 16 bytes.
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* \return zero on success, negative number on failure
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*/
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int read_serial(void *buf);
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/**
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* Read EUI-64 from chip.
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* \param buf pointer to write EUI-64 to. Must have space for 8 bytes.
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* \return zero on success, negative number on failure
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*/
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int read_eui64(void *buf);
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/**
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* Read EUI-48 from chip.
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* \param buf pointer to write EUI-48 to. Must have space for 6 bytes.
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* \return zero on success, negative number on failure
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*/
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int read_eui48(void *buf);
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private:
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mbed::I2C _i2c;
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};
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#endif /* AT24MAC */
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#endif /* DEVICE_I2C */
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#endif /* AT24MAC_S2LP_H */
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