/* * Author: Yevgeniy Kiveisha * Copyright (c) 2014 Intel Corporation. * * Based on SM130 library developed by Marc Boon * * 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 THE AUTHORS OR COPYRIGHT HOLDERS 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. */ #pragma once #include #include #include #include #include #include #define SIZE_PAYLOAD 18 // maximum payload size of I2C packet #define SIZE_PACKET (SIZE_PAYLOAD + 2) // total I2C packet size, including length uint8_t and checksum #define HIGH 1 #define LOW 0 namespace upm { /** * @brief SM130 RFID reader module sensor library * @defgroup sm130 libupm-sm130 * @ingroup sparkfun gpio rfid */ /** * @library sm130 * @sensor sm130 * @comname SM130 RFID reader module sensor * @type rfid * @man sparkfun * @web https://www.sparkfun.com/products/10126 * @con gpio * * @brief API for SM130 RFID reader module * * This file defines the interface for sm130 RFID library * * @snippet sm130.cxx Interesting */ class SM130 { uint8_t m_Data[SIZE_PACKET]; //!< packet data char m_Version[8]; //!< version string uint8_t m_TagNumber[7]; //!< tag number as uint8_t array uint8_t m_TagLength; //!< length of tag number in uint8_ts (4 or 7) char m_TagString[15]; //!< tag number as hex string uint8_t m_TagType; //!< type of tag char errorCode; //!< error code from some commands uint8_t antennaPower; //!< antenna power level uint8_t m_LastCMD; //!< last sent command public: static const uint8_t MIFARE_ULTRALIGHT = 1; static const uint8_t MIFARE_1K = 2; static const uint8_t MIFARE_4K = 3; static const uint8_t CMD_RESET = 0x80; static const uint8_t CMD_VERSION = 0x81; static const uint8_t CMD_SEEK_TAG = 0x82; static const uint8_t CMD_SELECT_TAG = 0x83; static const uint8_t CMD_AUTHENTICATE = 0x85; static const uint8_t CMD_READ16 = 0x86; static const uint8_t CMD_READ_VALUE = 0x87; static const uint8_t CMD_WRITE16 = 0x89; static const uint8_t CMD_WRITE_VALUE = 0x8a; static const uint8_t CMD_WRITE4 = 0x8b; static const uint8_t CMD_WRITE_KEY = 0x8c; static const uint8_t CMD_INC_VALUE = 0x8d; static const uint8_t CMD_DEC_VALUE = 0x8e; static const uint8_t CMD_ANTENNA_POWER = 0x90; static const uint8_t CMD_READ_PORT = 0x91; static const uint8_t CMD_WRITE_PORT = 0x92; static const uint8_t CMD_HALT_TAG = 0x93; static const uint8_t CMD_SET_BAUD = 0x94; static const uint8_t CMD_SLEEP = 0x96; /** * Instanciates a SM130 object * * @param di data pin * @param dcki clock pin */ SM130 (int bus, int devAddr, int rst, int dready); /** * SM130 object destructor */ ~SM130 (); /** * Get the firmware version string. */ const char* getFirmwareVersion (); /** * Checks for availability of a valid response packet. * * This function should always be called and return true prior to using results * of a command. * * @returns true if a valid response packet is available */ uint8_t available (); /** * Returns the packet length, excluding checksum */ uint8_t getPacketLength () { return this->m_Data[0]; }; /** * Returns the last executed command */ uint8_t getCommand () { return this->m_Data[1]; }; /** * Return name of the component */ std::string name() { return m_name; } private: std::string m_name; mraa_gpio_context m_resetPinCtx; mraa_gpio_context m_dataReadyPinCtx; int m_i2cAddr; int m_bus; mraa_i2c_context m_i2Ctx; void arrayToHex (char *s, uint8_t array[], uint8_t len); char toHex (uint8_t b); uint16_t i2cRecievePacket (uint32_t len); mraa_result_t i2cTransmitPacket (uint32_t len); mraa_result_t sendCommand (uint8_t cmd); }; }