Diff: sx1276/sx1276-mbed-hal.h

Revision:

36:f2b885b6f33e

Parent:

34:07e89f23c734

Child:

38:d9189d958db8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sx1276/sx1276-mbed-hal.h	Sat May 06 12:10:11 2017 +0000
@@ -0,0 +1,247 @@
+/*
+ / _____)             _              | |
+( (____  _____ ____ _| |_ _____  ____| |__
+ \____ \| ___ |    (_   _) ___ |/ ___)  _ \
+ _____) ) ____| | | || |_| ____( (___| | | |
+(______/|_____)_|_|_| \__)_____)\____)_| |_|
+    (C) 2014 Semtech
+
+Description: -
+
+License: Revised BSD License, see LICENSE.TXT file include in the project
+
+Maintainers: Miguel Luis, Gregory Cristian and Nicolas Huguenin
+*/
+
+/*
+ * additional development to make it more generic across multiple os versions
+ * (c) 2017 Helmut Tschemernjak
+ * 30826 Garbsen (Hannover) Germany
+ */
+
+#ifndef __SX1276_HAL_H__
+#define __SX1276_HAL_H__
+#include "sx1276.h"
+
+/*!
+ * @brief Radio hardware registers initialization definition
+ *
+ * @remark Can be automatically generated by the SX1276 GUI (not yet implemented)
+ */
+#define RADIO_INIT_REGISTERS_VALUE                \
+{                                                 \
+    { MODEM_FSK , REG_LNA                , 0x23 },\
+    { MODEM_FSK , REG_RXCONFIG           , 0x1E },\
+    { MODEM_FSK , REG_RSSICONFIG         , 0xD2 },\
+    { MODEM_FSK , REG_AFCFEI             , 0x01 },\
+    { MODEM_FSK , REG_PREAMBLEDETECT     , 0xAA },\
+    { MODEM_FSK , REG_OSC                , 0x07 },\
+    { MODEM_FSK , REG_SYNCCONFIG         , 0x12 },\
+    { MODEM_FSK , REG_SYNCVALUE1         , 0xC1 },\
+    { MODEM_FSK , REG_SYNCVALUE2         , 0x94 },\
+    { MODEM_FSK , REG_SYNCVALUE3         , 0xC1 },\
+    { MODEM_FSK , REG_PACKETCONFIG1      , 0xD8 },\
+    { MODEM_FSK , REG_FIFOTHRESH         , 0x8F },\
+    { MODEM_FSK , REG_IMAGECAL           , 0x02 },\
+    { MODEM_FSK , REG_DIOMAPPING1        , 0x00 },\
+    { MODEM_FSK , REG_DIOMAPPING2        , 0x30 },\
+    { MODEM_LORA, REG_LR_PAYLOADMAXLENGTH, 0x40 },\
+}                                                 \
+
+/*! 
+ * Actual implementation of a SX1276 radio, includes some modifications to make it compatible with the MB1 LAS board
+ */
+class SX1276Generic : public SX1276
+{
+protected:
+    /*!
+     * Antenna switch GPIO pins objects
+     */
+    DigitalInOut *_antSwitch;
+    DigitalInOut *_antSwitchTX;
+    DigitalInOut *_antSwitchTXBoost;
+
+    /*!
+     * SX1276 Reset pin
+     */
+    DigitalInOut *_reset;
+    
+    /*!
+     * TCXO being used with the Murata Module
+     */
+    DigitalOut *_tcxo;
+
+    /*!
+     * SPI Interface
+     */
+    SPI *_spi; // mosi, miso, sclk
+    DigitalOut *_nss;
+    
+    /*!
+     * SX1276 DIO pins
+     */
+    InterruptIn *_dio0;
+    InterruptIn *_dio1;
+    InterruptIn *_dio2;
+    InterruptIn *_dio3;
+    InterruptIn *_dio4;
+    DigitalIn *_dio5;
+    
+private:
+    static const RadioRegisters_t RadioRegsInit[];
+
+public:
+    SX1276Generic( RadioEvents_t *events, BoardType_t board,
+            PinName mosi, PinName miso, PinName sclk, PinName nss, PinName reset,
+            PinName dio0, PinName dio1, PinName dio2, PinName dio3, PinName dio4, PinName dio5,
+            PinName antSwitch = NC, PinName antSwitchTX= NC, PinName antSwitchTXBoost = NC, PinName tcxo = NC);
+
+    
+    SX1276Generic( RadioEvents_t *events );
+
+    virtual ~SX1276Generic();
+
+protected:
+    /*!
+     * @brief Initializes the radio I/Os pins interface
+     */
+    virtual void IoInit( void );
+
+    /*!
+     *  @brief Initializes the radio registers
+     */
+    virtual void RadioRegistersInit( );
+    
+    /*!
+     * @brief Initializes the radio SPI
+     */
+    virtual void SpiInit( void );
+
+    /*!
+     * @brief Initializes DIO IRQ handlers
+     *
+     * @param [IN] irqHandlers Array containing the IRQ callback functions
+     */
+    virtual void IoIrqInit( DioIrqHandler *irqHandlers );
+
+    /*!
+     * @brief De-initializes the radio I/Os pins interface. 
+     *
+     * \remark Useful when going in MCU lowpower modes
+     */
+    virtual void IoDeInit( void );
+
+    /*!
+     * \brief Sets the radio output power.
+     *
+     * @param [IN] power Sets the RF output power
+     */
+    virtual void SetRfTxPower( int8_t power );
+
+    /*!
+     * @brief Gets the board PA selection configuration
+     *
+     * @param [IN] channel Channel frequency in Hz
+     * @retval PaSelect RegPaConfig PaSelect value
+     */
+    virtual uint8_t GetPaSelect( uint32_t channel );
+
+    /*!
+     * @brief Set the RF Switch I/Os pins in Low Power mode
+     *
+     * @param [IN] status enable or disable
+     */
+    virtual void SetAntSwLowPower( bool status );
+
+    /*!
+     * @brief Initializes the RF Switch I/Os pins interface
+     */
+    virtual void AntSwInit( void );
+
+    /*!
+     * @brief De-initializes the RF Switch I/Os pins interface 
+     *
+     * @remark Needed to decrease the power consumption in MCU lowpower modes
+     */
+    virtual void AntSwDeInit( void );
+
+    /*!
+     * @brief Controls the antena switch if necessary.
+     *
+     * @remark see errata note
+     *
+     * @param [IN] opMode Current radio operating mode
+     */
+    virtual void SetAntSw( uint8_t opMode );
+
+public:
+    /*!
+     * @brief Detect the board connected by reading the value of the antenna switch pin
+     */
+	virtual uint8_t DetectBoardType( void );
+
+    /*!
+     * @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 );
+
+    /*!
+     * @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 ) ;
+
+    /*!
+     * @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 ) ;
+
+    /*!
+     * @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 ) ;
+
+    /*!
+     * @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 ) ;
+
+    /*!
+     * @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 ) ;
+
+    /*!
+     * @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 ) ;
+
+    /*!
+     * @brief Reset the SX1276
+     */
+    virtual void Reset( void );
+};
+
+#endif // __SX1276_HAL_H__