/** * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form, except as embedded into a Nordic * Semiconductor ASA integrated circuit in a product or a software update for * such product, must reproduce the above copyright notice, this list of * conditions and the following disclaimer in the documentation and/or other * materials provided with the distribution. * * 3. Neither the name of Nordic Semiconductor ASA nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * 4. This software, with or without modification, must only be used with a * Nordic Semiconductor ASA integrated circuit. * * 5. Any software provided in binary form under this license must not be reverse * engineered, decompiled, modified and/or disassembled. * * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #ifndef ES_H__ #define ES_H__ #include #include "app_util_platform.h" /** * @file * * @defgroup eddystone_types Frame types and data formats * @brief Definitions specific to Eddystone frame types and data formats. * @ingroup eddystone * @{ */ /** @brief Swap 2 bytes. */ #define BYTES_SWAP_16BIT(x) (x << 8 | x >> 8) /** @brief Reverse 4 bytes. */ #define BYTES_REVERSE_32BIT(x) \ ((x << 24 | ((x << 8) & 0x00FF0000)) | (((x >> 8) & 0x0000FF00) | x >> 24)) /** @brief Check if the error code is equal to NRF_SUCCESS. If it is not, return the error code. */ #define RETURN_IF_ERROR(PARAM) \ if ((PARAM) != NRF_SUCCESS) \ { \ return (PARAM); \ } #define ES_UUID 0xFEAA //!< UUID for Eddystone beacons according to specification. #define ES_UID_FRAME_TYPE 0x00 //!< UID frame type (fixed at 0x00). #define ES_UID_RFU 0x00, 0x00 //!< Reserved for future use according to specification. #define ES_URL_FRAME_TYPE 0x10 //!< URL frame type (fixed at 0x10). #define ES_URL_SCHEME 0x00 //!< URL prefix scheme according to specification (0x00 = "http://www"). #define ES_TLM_FRAME_TYPE 0x20 //!< TLM frame type (fixed at 0x20). #define ES_EID_FRAME_TYPE 0x30 //!< EID frame type (fixed at 0x30). #define ES_FRAME_TYPE_LENGTH (1) //!< Length of a frame type field. #define ES_UID_LENGTH (20) //!< Length of a UID frame. #define ES_UID_NAMESPACE_LENGTH (10) //!< Length of a UID frame namespace field. #define ES_UID_INSTANCE_LENGTH (6) //!< Length of a UID frame instance field. #define ES_UID_RFU_LENGTH (2) //!< Length of a UID frame RFU field. #define ES_URL_LENGTH (20) //!< Length of a URL frame. #define ES_URL_URL_SCHEME_LENGTH (1) //!< Length of a URL frame URL scheme field. #define ES_URL_ENCODED_URL_LENGTH (17) //!< Maximum length of a URL frame encoded URL field. #define ES_TLM_LENGTH (14) //!< Length of a TLM frame. #define ES_TLM_VBATT_LENGTH (2) //!< Length of a TLM frame VBATT field. #define ES_TLM_TEMP_LENGTH (2) //!< Length of a TLM frame TEMP field. #define ES_TLM_ADV_CNT_LENGTH (4) //!< Length of a TLM frame ADV count field. #define ES_TLM_SEC_CNT_LENGTH (4) //!< Length of a TLM frame seconds field. #define ES_EID_LENGTH (10) //!< Length of an EID frame. #define ES_EID_ID_LENGTH (8) //!< Length of an EID frame ephemeral ID field. #define ES_EID_GATTS_READ_LENGTH (14) #define ES_EID_GATTS_READ_FRAME_TYPE_IDX (0) #define ES_EID_GATTS_READ_EXPONENT_IDX (1) #define ES_EID_GATTS_READ_CLCK_VALUE_IDX (2) #define ES_EID_GATTS_READ_EID_IDX (6) #define ES_ETLM_LENGTH (18) //!< Length of an eTLM frame. #define ES_ETLM_ECRYPTED_LENGTH (ES_TLM_VBATT_LENGTH + \ ES_TLM_TEMP_LENGTH + \ ES_TLM_ADV_CNT_LENGTH + \ ES_TLM_SEC_CNT_LENGTH) //!< Length of an eTLM frame encrypted TLM field. #define ES_ETLM_RFU (0x00) //!< eTLM frame RFU field value. #define ES_SPEC_VERSION_BYTE (0x00) //!< eTLM frame specification version field value. /** @brief Eddystone frame type values. These values are advertised as frame types. */ typedef enum { ES_FRAME_TYPE_UID = ES_UID_FRAME_TYPE, /**< UID frame type. */ ES_FRAME_TYPE_URL = ES_URL_FRAME_TYPE, /**< URL frame type. */ ES_FRAME_TYPE_TLM = ES_TLM_FRAME_TYPE, /**< TLM frame type. */ ES_FRAME_TYPE_EID = ES_EID_FRAME_TYPE /**< EID frame type. */ } es_frame_type_t; /** @brief TLM version values. */ typedef enum { ES_TLM_VERSION_TLM = 0x00, /**< TLM. */ ES_TLM_VERSION_ETLM = 0x01 /**< Encrypted TLM (eTLM). */ } es_tlm_version_t; /** @brief UID frame data representation. * @note This is a packed structure. Therefore, you should not change it. */ typedef PACKED_STRUCT { es_frame_type_t frame_type; //!< Frame type (see @ref es_frame_type_t). int8_t ranging_data; //!< Calibrated TX power at 0 m. int8_t namespace[ES_UID_NAMESPACE_LENGTH]; //!< UID namespace. int8_t instance[ES_UID_INSTANCE_LENGTH]; //!< UID instance. int8_t rfu[ES_UID_RFU_LENGTH]; //!< RFU. } es_uid_frame_t; /** @brief URL frame data representation. * @note This is a packed structure. Therefore, you should not change it. */ typedef PACKED_STRUCT { es_frame_type_t frame_type; //!< Frame type (see @ref es_frame_type_t). int8_t ranging_data; //!< Calibrated TX power at 0 m. uint8_t url_scheme; //!< URL scheme. uint8_t encoded_url[ES_URL_ENCODED_URL_LENGTH]; //!< Encoded URL (variable length). } es_url_frame_t; /** @brief TLM frame data representation. * @note This is a packed structure. Therefore, you should not change it. */ typedef PACKED_STRUCT { es_frame_type_t frame_type; //!< Frame type (see @ref es_frame_type_t). es_tlm_version_t version; //!< TLM version (see @ref es_tlm_version_t). int8_t vbatt[ES_TLM_VBATT_LENGTH]; //!< Battery voltage (in 1 mV units). int8_t temp[ES_TLM_TEMP_LENGTH]; //!< Beacon temperature. int8_t adv_cnt[ES_TLM_ADV_CNT_LENGTH]; //!< Advertising PDU count. int8_t sec_cnt[ES_TLM_SEC_CNT_LENGTH]; //!< Time since power-on or reboot. } es_tlm_frame_t; /** @brief EID frame data representation. * @note This is a packed structure. Therefore, you should not change it. */ typedef PACKED_STRUCT { es_frame_type_t frame_type; //!< Frame type (see @ref es_frame_type_t). int8_t ranging_data; //!< Calibrated TX power at 0 m. int8_t eid[ES_EID_ID_LENGTH]; //!< 8-byte ephemeral identifier. } es_eid_frame_t; /** @brief eTLM frame data representation. * @note This is a packed structure. Therefore, you should not change it. */ typedef PACKED_STRUCT { es_frame_type_t frame_type; //!< Frame type (see @ref es_frame_type_t). es_tlm_version_t version; //!< TLM version (see @ref es_tlm_version_t). int8_t encrypted_tlm[ES_ETLM_ECRYPTED_LENGTH]; //!< Encrypted TLM data. int16_t random_salt; //!< Salt int16_t msg_integrity_check; //!< Message integrity check. } es_etlm_frame_t; /** * @} */ #endif // ES_H__