SX1276GenericLib to support sx1276 bassed LoRa modules, including HopeRF RFM95, Murata CMWX1ZZABZ and Semtech SX1276MB1MAS/SX1276MB1LAS modules
Dependents: DISCO-L072CZ-LRWAN1_LoRa_PingPong DISCO-L072CZ-LRWAN1_LoRa_PingPong DISCO-L072CZ-LRWAN1_LoRa_PingPong DISCO-L072CZ-LRWAN1_LoRa_USB_Rx ... more
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Diff: radio/radio.h
- Revision:
- 0:e6ceb13d2d05
- Child:
- 6:e7f02929cd3d
diff -r 000000000000 -r e6ceb13d2d05 radio/radio.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/radio/radio.h Mon Aug 18 14:24:46 2014 +0000 @@ -0,0 +1,304 @@ +/* + / _____) _ | | +( (____ _____ ____ _| |_ _____ ____| |__ + \____ \| ___ | (_ _) ___ |/ ___) _ \ + _____) ) ____| | | || |_| ____( (___| | | | +(______/|_____)_|_|_| \__)_____)\____)_| |_| + ( C )2014 Semtech + +Description: Interface for the radios, contains the main functions that a radio needs, and 5 callback functions + +License: Revised BSD License, see LICENSE.TXT file include in the project + +Maintainers: Miguel Luis, Gregory Cristian and Nicolas Huguenin +*/ +#ifndef __RADIO_H__ +#define __RADIO_H__ + +#include "mbed.h" + +#include "./enums/enums.h" + +/*! + * Interface for the radios, contains the main functions that a radio needs, and 5 callback functions + */ +class Radio +{ +protected: + + //------------------------------------------------------------------------- + // Callback functions pointers + //------------------------------------------------------------------------- + + /*! + * @brief Tx Done callback prototype. + */ + void ( *txDone )( ); + + /*! + * @brief Tx Timeout callback prototype. + */ + void ( *txTimeout ) ( ); + + /*! + * @brief Rx Done callback prototype. + * + * @param [IN] payload Received buffer pointer + * @param [IN] size Received buffer size + * @param [IN] rssi RSSI value computed while receiving the frame [dBm] + * @param [IN] snr Raw SNR value given by the radio hardware + * FSK : N/A ( set to 0 ) + * LoRa: SNR value in dB + */ + void ( *rxDone ) ( uint8_t *payload, uint16_t size, int8_t rssi, int8_t snr ); + + /*! + * @brief Rx Timeout callback prototype. + */ + void ( *rxTimeout ) ( ); + + /*! + * @brief Rx Error callback prototype. + */ + void ( *rxError ) ( ); + +public: + //------------------------------------------------------------------------- + // Constructor + //------------------------------------------------------------------------- + /*! + * @brief Constructor of the radio object, the parameters are the callback functions described in the header. + * @param [IN] txDone + * @param [IN] txTimeout + * @param [IN] rxDone + * @param [IN] rxTimeout + * @param [IN] rxError + */ + Radio( void ( *txDone )( ), void ( *txTimeout ) ( ), void ( *rxDone ) ( uint8_t *payload, uint16_t size, int8_t rssi, int8_t snr ), void ( *rxTimeout ) ( ), void ( *rxError ) ( ) ); + virtual ~Radio( ) {}; + + //------------------------------------------------------------------------- + // Pure virtual functions + //------------------------------------------------------------------------- + + /*! + * Return current radio status + * + * @param status Radio status.[RF_IDLE, RF_RX_RUNNING, RF_TX_RUNNING] + */ + virtual RadioState GetState( void ) = 0; + + /*! + * @brief Sets the channel frequency + * + * @param [IN] freq Channel RF frequency + */ + virtual void SetChannel( uint32_t freq ) = 0; + + /*! + * @brief Sets the channels configuration + * + * @param [IN] modem Radio modem to be used [0: FSK, 1: LoRa] + * @param [IN] freq Channel RF frequency + * @param [IN] rssiThresh RSSI threshold + * + * @retval isFree [true: Channel is free, false: Channel is not free] + */ + virtual bool IsChannelFree( ModemType modem, uint32_t freq, int8_t rssiThresh ) = 0; + + /*! + * @brief Generates a 32 bits random value based on the RSSI readings + * + * \remark This function sets the radio in LoRa modem mode and disables + * all interrupts. + * After calling this function either Radio.SetRxConfig or + * Radio.SetTxConfig functions must be called. + * + * @retval randomValue 32 bits random value + */ + virtual uint32_t Random( void )= 0; + + /*! + * @brief Sets the reception parameters + * + * @param [IN] modem Radio modem to be used [0: FSK, 1: LoRa] + * @param [IN] bandwidth Sets the bandwidth + * FSK : >= 2600 and <= 250000 Hz + * LoRa: [0: 125 kHz, 1: 250 kHz, + * 2: 500 kHz, 3: Reserved] + * @param [IN] datarate Sets the Datarate + * FSK : 600..300000 bits/s + * LoRa: [6: 64, 7: 128, 8: 256, 9: 512, + * 10: 1024, 11: 2048, 12: 4096 chips] + * @param [IN] coderate Sets the coding rate ( LoRa only ) + * FSK : N/A ( set to 0 ) + * LoRa: [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] + * @param [IN] bandwidthAfc Sets the AFC Bandwidth ( FSK only ) + * FSK : >= 2600 and <= 250000 Hz + * LoRa: N/A ( set to 0 ) + * @param [IN] preambleLen Sets the Preamble length ( LoRa only ) + * FSK : N/A ( set to 0 ) + * LoRa: Length in symbols ( the hardware adds 4 more symbols ) + * @param [IN] symbTimeout Sets the RxSingle timeout value ( LoRa only ) + * FSK : N/A ( set to 0 ) + * LoRa: timeout in symbols + * @param [IN] fixLen Fixed length packets [0: variable, 1: fixed] + * @param [IN] crcOn Enables/Disables the CRC [0: OFF, 1: ON] + * @param [IN] iqInverted Inverts IQ signals ( LoRa only ) + * FSK : N/A ( set to 0 ) + * LoRa: [0: not inverted, 1: inverted] + * @param [IN] rxContinuous Sets the reception in continuous mode + * [false: single mode, true: continuous mode] + */ + virtual void SetRxConfig ( ModemType modem, uint32_t bandwidth, + uint32_t datarate, uint8_t coderate, + uint32_t bandwidthAfc, uint16_t preambleLen, + uint16_t symbTimeout, bool fixLen, + bool crcOn, bool iqInverted, bool rxContinuous ) = 0; + + /*! + * @brief Sets the transmission parameters + * + * @param [IN] modem Radio modem to be used [0: FSK, 1: LoRa] + * @param [IN] power Sets the output power [dBm] + * @param [IN] fdev Sets the frequency deviation ( FSK only ) + * FSK : [Hz] + * LoRa: 0 + * @param [IN] bandwidth Sets the bandwidth ( LoRa only ) + * FSK : 0 + * LoRa: [0: 125 kHz, 1: 250 kHz, + * 2: 500 kHz, 3: Reserved] + * @param [IN] datarate Sets the Datarate + * FSK : 600..300000 bits/s + * LoRa: [6: 64, 7: 128, 8: 256, 9: 512, + * 10: 1024, 11: 2048, 12: 4096 chips] + * @param [IN] coderate Sets the coding rate ( LoRa only ) + * FSK : N/A ( set to 0 ) + * LoRa: [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] + * @param [IN] preambleLen Sets the preamble length + * @param [IN] fixLen Fixed length packets [0: variable, 1: fixed] + * @param [IN] crcOn Enables disables the CRC [0: OFF, 1: ON] + * @param [IN] iqInverted Inverts IQ signals ( LoRa only ) + * FSK : N/A ( set to 0 ) + * LoRa: [0: not inverted, 1: inverted] + * @param [IN] timeout Transmission timeout [us] + */ + virtual void SetTxConfig( ModemType modem, int8_t power, uint32_t fdev, + uint32_t bandwidth, uint32_t datarate, + uint8_t coderate, uint16_t preambleLen, + bool fixLen, bool crcOn, + bool iqInverted, uint32_t timeout ) = 0; + + /*! + * @brief Checks if the given RF frequency is supported by the hardware + * + * @param [IN] frequency RF frequency to be checked + * @retval isSupported [true: supported, false: unsupported] + */ + virtual bool CheckRfFrequency( uint32_t frequency ) = 0; + + /*! + * @brief Computes the packet time on air for the given payload + * + * \Remark Can only be called once SetRxConfig or SetTxConfig have been called + * + * @param [IN] modem Radio modem to be used [0: FSK, 1: LoRa] + * @param [IN] pktLen Packet payload length + * + * @retval airTime Computed airTime for the given packet payload length + */ + virtual double TimeOnAir ( ModemType modem, uint8_t pktLen ) = 0; + + /*! + * @brief Sends the buffer of size. Prepares the packet to be sent and sets + * the radio in transmission + * + * @param [IN]: buffer Buffer pointer + * @param [IN]: size Buffer size + */ + virtual void Send( uint8_t *buffer, uint8_t size ) = 0; + + /*! + * @brief Sets the radio in sleep mode + */ + virtual void Sleep( void ) = 0; + + /*! + * @brief Sets the radio in standby mode + */ + virtual void Standby( void )= 0; + + /*! + * @brief Sets the radio in reception mode for the given time + * @param [IN] timeout Reception timeout [us] + * [0: continuous, others timeout] + */ + virtual void Rx( uint32_t timeout ) = 0; + + /*! + * @brief Sets the radio in transmission mode for the given time + * @param [IN] timeout Transmission timeout [us] + * [0: continuous, others timeout] + */ + virtual void Tx( uint32_t timeout ) = 0; + + /*! + * @brief Reads the current RSSI value + * + * @retval rssiValue Current RSSI value in [dBm] + */ + virtual int8_t GetRssi ( ModemType modem ) = 0; + + /*! + * @brief Writes the radio register at the specified address + * + * @param [IN]: addr Register address + * @param [IN]: data New register value + */ + virtual void Write ( uint8_t addr, uint8_t data ) = 0; + + /*! + * @brief Reads the radio register at the specified address + * + * @param [IN]: addr Register address + * @retval data Register value + */ + virtual uint8_t Read ( uint8_t addr ) = 0; + + /*! + * @brief Writes multiple radio registers starting at address + * + * @param [IN] addr First Radio register address + * @param [IN] buffer Buffer containing the new register's values + * @param [IN] size Number of registers to be written + */ + virtual void Write( uint8_t addr, uint8_t *buffer, uint8_t size ) = 0; + + /*! + * @brief Reads multiple radio registers starting at address + * + * @param [IN] addr First Radio register address + * @param [OUT] buffer Buffer where to copy the registers data + * @param [IN] size Number of registers to be read + */ + virtual void Read ( uint8_t addr, uint8_t *buffer, uint8_t size ) = 0; + + /*! + * @brief Writes the buffer contents to the SX1276 FIFO + * + * @param [IN] buffer Buffer containing data to be put on the FIFO. + * @param [IN] size Number of bytes to be written to the FIFO + */ + virtual void WriteFifo( uint8_t *buffer, uint8_t size ) = 0; + + /*! + * @brief Reads the contents of the SX1276 FIFO + * + * @param [OUT] buffer Buffer where to copy the FIFO read data. + * @param [IN] size Number of bytes to be read from the FIFO + */ + virtual void ReadFifo( uint8_t *buffer, uint8_t size ) = 0; +}; + +#endif // __RADIO_H__ +