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https://github.com/peterantypas/maiana.git
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82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/*
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Copyright (c) 2016-2020 Peter Antypas
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This file is part of the MAIANA™ transponder firmware.
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The firmware is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>
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*/
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#ifndef RFIC_HPP_
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#define RFIC_HPP_
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#include <inttypes.h>
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#include <stm32l4xx_hal.h>
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typedef enum
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{
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BIT_STATE_PREAMBLE_SYNC,
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BIT_STATE_IN_PACKET
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} BitState;
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class RFIC
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{
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public:
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RFIC(GPIO_TypeDef *sdnPort,
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uint32_t sdnPin,
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GPIO_TypeDef *csPort,
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uint32_t csPin,
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GPIO_TypeDef *dataPort,
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uint32_t dataPin,
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GPIO_TypeDef *clockPort,
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uint32_t clockPin,
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int chipId);
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virtual ~RFIC();
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void setRSSIAdjustment(short rssiAdj);
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uint16_t partNumber();
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protected:
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virtual void configure();
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bool sendCmd(uint8_t cmd, void* params, uint8_t paramLen, void* result, uint8_t resultLen);
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bool sendCmdNoWait(uint8_t cmd, void* params, uint8_t paramLen);
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bool isInitialized();
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void powerOnReset();
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bool isReceiving();
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uint8_t readRSSI();
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bool checkStatus();
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virtual void configureGPIOsForRX() = 0;
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private:
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bool readSPIResponse(void *data, uint8_t len);
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inline void spiOn();
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inline void spiOff();
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protected:
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GPIO_TypeDef *mSDNP; // The MCU GPIO assigned to SDN for this IC (GPIOA, GPIOB or GPIOC)
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GPIO_TypeDef *mCSPort; // The MCU GPIO assigned to CS for this IC
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GPIO_TypeDef *mDataPort; // The MCU GPIO assigned to the RX/TX data pin of the IC
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GPIO_TypeDef *mClockGPIO; // The MCU GPIO assigned to the RX/TX clock of the IC
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uint32_t mSDNPin;
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uint32_t mCSPin;
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uint32_t mDataPin;
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uint32_t mClockPin;
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uint8_t mLastNRZIBit;
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BitState mBitState;
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uint32_t mChipID;
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bool mCTSPending = false;
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uint16_t mPartNumber;
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};
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#endif /* RFIC_HPP_ */
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