RF69.h

#if !defined(_RADIOLIB_RF69_H)
#define _RADIOLIB_RF69_H
 
#include "../../TypeDef.h"
 
#if !defined(RADIOLIB_EXCLUDE_RF69)
 
#include "../../Module.h"
 
#include "../../protocols/PhysicalLayer/PhysicalLayer.h"
 
// RF69 physical layer properties
#define RF69_FREQUENCY_STEP_SIZE                      61.03515625
#define RF69_MAX_PACKET_LENGTH                        64
#define RF69_CRYSTAL_FREQ                             32.0
#define RF69_DIV_EXPONENT                             19
 
// RF69 register map
#define RF69_REG_FIFO                                 0x00
#define RF69_REG_OP_MODE                              0x01
#define RF69_REG_DATA_MODUL                           0x02
#define RF69_REG_BITRATE_MSB                          0x03
#define RF69_REG_BITRATE_LSB                          0x04
#define RF69_REG_FDEV_MSB                             0x05
#define RF69_REG_FDEV_LSB                             0x06
#define RF69_REG_FRF_MSB                              0x07
#define RF69_REG_FRF_MID                              0x08
#define RF69_REG_FRF_LSB                              0x09
#define RF69_REG_OSC_1                                0x0A
#define RF69_REG_AFC_CTRL                             0x0B
#define RF69_REG_LISTEN_1                             0x0D
#define RF69_REG_LISTEN_2                             0x0E
#define RF69_REG_LISTEN_3                             0x0F
#define RF69_REG_VERSION                              0x10
#define RF69_REG_PA_LEVEL                             0x11
#define RF69_REG_PA_RAMP                              0x12
#define RF69_REG_OCP                                  0x13
#define RF69_REG_LNA                                  0x18
#define RF69_REG_RX_BW                                0x19
#define RF69_REG_AFC_BW                               0x1A
#define RF69_REG_OOK_PEAK                             0x1B
#define RF69_REG_OOK_AVG                              0x1C
#define RF69_REG_OOK_FIX                              0x1D
#define RF69_REG_AFC_FEI                              0x1E
#define RF69_REG_AFC_MSB                              0x1F
#define RF69_REG_AFC_LSB                              0x20
#define RF69_REG_FEI_MSB                              0x21
#define RF69_REG_FEI_LSB                              0x22
#define RF69_REG_RSSI_CONFIG                          0x23
#define RF69_REG_RSSI_VALUE                           0x24
#define RF69_REG_DIO_MAPPING_1                        0x25
#define RF69_REG_DIO_MAPPING_2                        0x26
#define RF69_REG_IRQ_FLAGS_1                          0x27
#define RF69_REG_IRQ_FLAGS_2                          0x28
#define RF69_REG_RSSI_THRESH                          0x29
#define RF69_REG_RX_TIMEOUT_1                         0x2A
#define RF69_REG_RX_TIMEOUT_2                         0x2B
#define RF69_REG_PREAMBLE_MSB                         0x2C
#define RF69_REG_PREAMBLE_LSB                         0x2D
#define RF69_REG_SYNC_CONFIG                          0x2E
#define RF69_REG_SYNC_VALUE_1                         0x2F
#define RF69_REG_SYNC_VALUE_2                         0x30
#define RF69_REG_SYNC_VALUE_3                         0x31
#define RF69_REG_SYNC_VALUE_4                         0x32
#define RF69_REG_SYNC_VALUE_5                         0x33
#define RF69_REG_SYNC_VALUE_6                         0x34
#define RF69_REG_SYNC_VALUE_7                         0x35
#define RF69_REG_SYNC_VALUE_8                         0x36
#define RF69_REG_PACKET_CONFIG_1                      0x37
#define RF69_REG_PAYLOAD_LENGTH                       0x38
#define RF69_REG_NODE_ADRS                            0x39
#define RF69_REG_BROADCAST_ADRS                       0x3A
#define RF69_REG_AUTO_MODES                           0x3B
#define RF69_REG_FIFO_THRESH                          0x3C
#define RF69_REG_PACKET_CONFIG_2                      0x3D
#define RF69_REG_AES_KEY_1                            0x3E
#define RF69_REG_AES_KEY_2                            0x3F
#define RF69_REG_AES_KEY_3                            0x40
#define RF69_REG_AES_KEY_4                            0x41
#define RF69_REG_AES_KEY_5                            0x42
#define RF69_REG_AES_KEY_6                            0x43
#define RF69_REG_AES_KEY_7                            0x44
#define RF69_REG_AES_KEY_8                            0x45
#define RF69_REG_AES_KEY_9                            0x46
#define RF69_REG_AES_KEY_10                           0x47
#define RF69_REG_AES_KEY_11                           0x48
#define RF69_REG_AES_KEY_12                           0x49
#define RF69_REG_AES_KEY_13                           0x4A
#define RF69_REG_AES_KEY_14                           0x4B
#define RF69_REG_AES_KEY_15                           0x4C
#define RF69_REG_AES_KEY_16                           0x4D
#define RF69_REG_TEMP_1                               0x4E
#define RF69_REG_TEMP_2                               0x4F
#define RF69_REG_TEST_LNA                             0x58
#define RF69_REG_TEST_PA1                             0x5A
#define RF69_REG_TEST_PA2                             0x5C
#define RF69_REG_TEST_DAGC                            0x6F
 
// RF69 modem settings
// RF69_REG_OP_MODE                                                   MSB   LSB   DESCRIPTION
#define RF69_SEQUENCER_OFF                            0b00000000  //  7     7     disable automatic sequencer
#define RF69_SEQUENCER_ON                             0b10000000  //  7     7     enable automatic sequencer
#define RF69_LISTEN_OFF                               0b00000000  //  6     6     disable Listen mode
#define RF69_LISTEN_ON                                0b01000000  //  6     6     enable Listen mode
#define RF69_LISTEN_ABORT                             0b00100000  //  5     5     abort Listen mode (has to be set together with RF69_LISTEN_OFF)
#define RF69_SLEEP                                    0b00000000  //  4     2     sleep
#define RF69_STANDBY                                  0b00000100  //  4     2     standby
#define RF69_FS                                       0b00001000  //  4     2     frequency synthesis
#define RF69_TX                                       0b00001100  //  4     2     transmit
#define RF69_RX                                       0b00010000  //  4     2     receive
 
// RF69_REG_DATA_MODUL
#define RF69_PACKET_MODE                              0b00000000  //  6     5     packet mode (default)
#define RF69_CONTINUOUS_MODE_WITH_SYNC                0b01000000  //  6     5     continuous mode with bit synchronizer
#define RF69_CONTINUOUS_MODE                          0b01100000  //  6     5     continuous mode without bit synchronizer
#define RF69_FSK                                      0b00000000  //  4     3     modulation: FSK (default)
#define RF69_OOK                                      0b00001000  //  4     3                 OOK
#define RF69_NO_SHAPING                               0b00000000  //  1     0     modulation shaping: no shaping (default)
#define RF69_FSK_GAUSSIAN_1_0                         0b00000001  //  1     0                         FSK modulation Gaussian filter, BT = 1.0
#define RF69_FSK_GAUSSIAN_0_5                         0b00000010  //  1     0                         FSK modulation Gaussian filter, BT = 0.5
#define RF69_FSK_GAUSSIAN_0_3                         0b00000011  //  1     0                         FSK modulation Gaussian filter, BT = 0.3
#define RF69_OOK_FILTER_BR                            0b00000001  //  1     0                         OOK modulation filter, f_cutoff = BR
#define RF69_OOK_FILTER_2BR                           0b00000010  //  1     0                         OOK modulation filter, f_cutoff = 2*BR
 
// RF69_REG_BITRATE_MSB + REG_BITRATE_LSB
#define RF69_BITRATE_MSB                              0x1A        //  7     0     bit rate setting: rate = F(XOSC) / BITRATE
#define RF69_BITRATE_LSB                              0x0B        //  7     0         default value: 4.8 kbps                            0x40        //  7     0
 
// RF69_REG_FDEV_MSB + REG_FDEV_LSB
#define RF69_FDEV_MSB                                 0x00        //  5     0     frequency deviation: f_dev = f_step * FDEV
#define RF69_FDEV_LSB                                 0x52        //  7     0         default value: 5 kHz
 
// RF69_REG_FRF_MSB + REG_FRF_MID + REG_FRF_LSB
#define RF69_FRF_MSB                                  0xE4        //  7     0     carrier frequency setting: f_RF = (F(XOSC) * FRF)/2^19
#define RF69_FRF_MID                                  0xC0        //  7     0         where F(XOSC) = 32 MHz
#define RF69_FRF_LSB                                  0x00        //  7     0         default value: 915 MHz
 
// RF69_REG_OSC_1
#define RF69_RC_CAL_START                             0b10000000  //  7     7     force RC oscillator calibration
#define RF69_RC_CAL_RUNNING                           0b00000000  //  6     6     RC oscillator calibration is still running
#define RF69_RC_CAL_DONE                              0b00000000  //  5     5     RC oscillator calibration has finished
 
// RF69_REG_AFC_CTRL
#define RF69_AFC_LOW_BETA_OFF                         0b00000000  //  5     5     standard AFC routine
#define RF69_AFC_LOW_BETA_ON                          0b00100000  //  5     5     improved AFC routine for signals with modulation index less than 2
 
// RF69_REG_LISTEN_1
#define RF69_LISTEN_RES_IDLE_64_US                    0b01000000  //  7     6     resolution of Listen mode idle time: 64 us
#define RF69_LISTEN_RES_IDLE_4_1_MS                   0b10000000  //  7     6                                          4.1 ms (default)
#define RF69_LISTEN_RES_IDLE_262_MS                   0b11000000  //  7     6                                          262 ms
#define RF69_LISTEN_RES_RX_64_US                      0b00010000  //  5     4     resolution of Listen mode rx time: 64 us (default)
#define RF69_LISTEN_RES_RX_4_1_MS                     0b00100000  //  5     4                                        4.1 ms
#define RF69_LISTEN_RES_RX_262_MS                     0b00110000  //  5     4                                        262 ms
#define RF69_LISTEN_ACCEPT_ABOVE_RSSI_THRESH          0b00000000  //  3     3     packet acceptance criteria: RSSI above threshold
#define RF69_LISTEN_ACCEPT_MATCH_SYNC_ADDRESS         0b00001000  //  3     3                                 RSSI above threshold AND sync address matched
#define RF69_LISTEN_END_KEEP_RX                       0b00000000  //  2     1     action after packet acceptance: stay in Rx mode
#define RF69_LISTEN_END_KEEP_RX_TIMEOUT               0b00000010  //  2     1                                     stay in Rx mode until timeout (default)
#define RF69_LISTEN_END_KEEP_RX_TIMEOUT_RESUME        0b00000100  //  2     1                                     stay in Rx mode until timeout, Listen mode will resume
 
// RF69_REG_LISTEN_2
#define RF69_LISTEN_COEF_IDLE                         0xF5        //  7     0     duration of idle phase in Listen mode
 
// RF69_REG_LISTEN_3
#define RF69_LISTEN_COEF_RX                           0x20        //  7     0     duration of Rx phase in Listen mode
 
// RF69_REG_VERSION
#define RF69_CHIP_VERSION                             0x24        //  7     0
 
// RF69_REG_PA_LEVEL
#define RF69_PA0_OFF                                  0b00000000  //  7     7     PA0 disabled
#define RF69_PA0_ON                                   0b10000000  //  7     7     PA0 enabled (default)
#define RF69_PA1_OFF                                  0b00000000  //  6     6     PA1 disabled (default)
#define RF69_PA1_ON                                   0b01000000  //  6     6     PA1 enabled
#define RF69_PA2_OFF                                  0b00000000  //  5     5     PA2 disabled (default)
#define RF69_PA2_ON                                   0b00100000  //  5     5     PA2 enabled
#define RF69_OUTPUT_POWER                             0b00011111  //  4     0     output power: P_out = -18 + OUTPUT_POWER
 
// RF69_REG_PA_RAMP
#define RF69_PA_RAMP_3_4_MS                           0b00000000  //  3     0     PA ramp rise/fall time: 3.4 ms
#define RF69_PA_RAMP_2_MS                             0b00000001  //  3     0                             2 ms
#define RF69_PA_RAMP_1_MS                             0b00000010  //  3     0                             1 ms
#define RF69_PA_RAMP_500_US                           0b00000011  //  3     0                             500 us
#define RF69_PA_RAMP_250_US                           0b00000100  //  3     0                             250 us
#define RF69_PA_RAMP_125_US                           0b00000101  //  3     0                             125 us
#define RF69_PA_RAMP_100_US                           0b00000110  //  3     0                             100 us
#define RF69_PA_RAMP_62_US                            0b00000111  //  3     0                             62 us
#define RF69_PA_RAMP_50_US                            0b00001000  //  3     0                             50 us
#define RF69_PA_RAMP_40_US                            0b00001001  //  3     0                             40 us (default)
#define RF69_PA_RAMP_31_US                            0b00001010  //  3     0                             31 us
#define RF69_PA_RAMP_25_US                            0b00001011  //  3     0                             25 us
#define RF69_PA_RAMP_20_US                            0b00001100  //  3     0                             20 us
#define RF69_PA_RAMP_15_US                            0b00001101  //  3     0                             15 us
#define RF69_PA_RAMP_12_US                            0b00001110  //  3     0                             12 us
#define RF69_PA_RAMP_10_US                            0b00001111  //  3     0                             10 us
 
// RF69_REG_OCP
#define RF69_OCP_OFF                                  0b00000000  //  4     4     PA overload current protection disabled
#define RF69_OCP_ON                                   0b00010000  //  4     4     PA overload current protection enabled
#define RF69_OCP_TRIM                                 0b00001010  //  3     0     OCP current: I_max(OCP_TRIM = 0b1010) = 95 mA
 
// RF69_REG_LNA
#define RF69_LNA_Z_IN_50_OHM                          0b00000000  //  7     7     LNA input impedance: 50 ohm
#define RF69_LNA_Z_IN_200_OHM                         0b10000000  //  7     7                          200 ohm
#define RF69_LNA_CURRENT_GAIN                         0b00001000  //  5     3     manually set LNA current gain
#define RF69_LNA_GAIN_AUTO                            0b00000000  //  2     0     LNA gain setting: set automatically by AGC
#define RF69_LNA_GAIN_MAX                             0b00000001  //  2     0                       max gain
#define RF69_LNA_GAIN_MAX_6_DB                        0b00000010  //  2     0                       max gain - 6 dB
#define RF69_LNA_GAIN_MAX_12_DB                       0b00000011  //  2     0                       max gain - 12 dB
#define RF69_LNA_GAIN_MAX_24_DB                       0b00000100  //  2     0                       max gain - 24 dB
#define RF69_LNA_GAIN_MAX_36_DB                       0b00000101  //  2     0                       max gain - 36 dB
#define RF69_LNA_GAIN_MAX_48_DB                       0b00000110  //  2     0                       max gain - 48 dB
 
// RF69_REG_RX_BW
#define RF69_DCC_FREQ                                 0b01000000  //  7     5     DC offset canceller cutoff frequency (4% Rx BW by default)
#define RF69_RX_BW_MANT_16                            0b00000000  //  4     3     Channel filter bandwidth FSK: RxBw = F(XOSC)/(RxBwMant * 2^(RxBwExp + 2))
#define RF69_RX_BW_MANT_20                            0b00001000  //  4     3                              OOK: RxBw = F(XOSC)/(RxBwMant * 2^(RxBwExp + 3))
#define RF69_RX_BW_MANT_24                            0b00010000  //  4     3
#define RF69_RX_BW_EXP                                0b00000101  //  2     0     default RxBwExp value = 5
 
// RF69_REG_AFC_BW
#define RF69_DCC_FREQ_AFC                             0b10000000  //  7     5     default DccFreq parameter for AFC
#define RF69_DCC_RX_BW_MANT_AFC                       0b00001000  //  4     3     default RxBwMant parameter for AFC
#define RF69_DCC_RX_BW_EXP_AFC                        0b00000011  //  2     0     default RxBwExp parameter for AFC
 
// RF69_REG_OOK_PEAK
#define RF69_OOK_THRESH_FIXED                         0b00000000  //  7     6     OOK threshold type: fixed
#define RF69_OOK_THRESH_PEAK                          0b01000000  //  7     6                         peak (default)
#define RF69_OOK_THRESH_AVERAGE                       0b10000000  //  7     6                         average
#define RF69_OOK_PEAK_THRESH_STEP_0_5_DB              0b00000000  //  5     3     OOK demodulator step size: 0.5 dB (default)
#define RF69_OOK_PEAK_THRESH_STEP_1_0_DB              0b00001000  //  5     3                                1.0 dB
#define RF69_OOK_PEAK_THRESH_STEP_1_5_DB              0b00010000  //  5     3                                1.5 dB
#define RF69_OOK_PEAK_THRESH_STEP_2_0_DB              0b00011000  //  5     3                                2.0 dB
#define RF69_OOK_PEAK_THRESH_STEP_3_0_DB              0b00100000  //  5     3                                3.0 dB
#define RF69_OOK_PEAK_THRESH_STEP_4_0_DB              0b00101000  //  5     3                                4.0 dB
#define RF69_OOK_PEAK_THRESH_STEP_5_0_DB              0b00110000  //  5     3                                5.0 dB
#define RF69_OOK_PEAK_THRESH_STEP_6_0_DB              0b00111000  //  5     3                                6.0 dB
#define RF69_OOK_PEAK_THRESH_DEC_1_1_CHIP             0b00000000  //  2     0     OOK demodulator step period: once per chip (default)
#define RF69_OOK_PEAK_THRESH_DEC_1_2_CHIP             0b00000001  //  2     0                                  once every 2 chips
#define RF69_OOK_PEAK_THRESH_DEC_1_4_CHIP             0b00000010  //  2     0                                  once every 4 chips
#define RF69_OOK_PEAK_THRESH_DEC_1_8_CHIP             0b00000011  //  2     0                                  once every 8 chips
#define RF69_OOK_PEAK_THRESH_DEC_2_1_CHIP             0b00000100  //  2     0                                  2 times per chip
#define RF69_OOK_PEAK_THRESH_DEC_4_1_CHIP             0b00000101  //  2     0                                  4 times per chip
#define RF69_OOK_PEAK_THRESH_DEC_8_1_CHIP             0b00000110  //  2     0                                  8 times per chip
#define RF69_OOK_PEAK_THRESH_DEC_16_1_CHIP            0b00000111  //  2     0                                  16 times per chip
 
// RF69_REG_OOK_AVG
#define RF69_OOK_AVG_THRESH_FILT_32_PI                0b00000000  //  7     6     OOK average filter coefficient: chip rate / 32*pi
#define RF69_OOK_AVG_THRESH_FILT_8_PI                 0b01000000  //  7     6                                     chip rate / 8*pi
#define RF69_OOK_AVG_THRESH_FILT_4_PI                 0b10000000  //  7     6                                     chip rate / 4*pi (default)
#define RF69_OOK_AVG_THRESH_FILT_2_PI                 0b11000000  //  7     6                                     chip rate / 2*pi
 
// RF69_REG_OOK_FIX
#define RF69_OOK_FIXED_THRESH                         0b00000110  //  7     0     default OOK fixed threshold (6 dB)
 
// RF69_REG_AFC_FEI
#define RF69_FEI_RUNNING                              0b00000000  //  6     6     FEI status: on-going
#define RF69_FEI_DONE                                 0b01000000  //  6     6                 done
#define RF69_FEI_START                                0b00100000  //  5     5     force new FEI measurement
#define RF69_AFC_RUNNING                              0b00000000  //  4     4     AFC status: on-going
#define RF69_AFC_DONE                                 0b00010000  //  4     4                 done
#define RF69_AFC_AUTOCLEAR_OFF                        0b00000000  //  3     3     AFC register autoclear disabled
#define RF69_AFC_AUTOCLEAR_ON                         0b00001000  //  3     3     AFC register autoclear enabled
#define RF69_AFC_AUTO_OFF                             0b00000000  //  2     2     perform AFC only manually
#define RF69_AFC_AUTO_ON                              0b00000100  //  2     2     perform AFC each time Rx mode is started
#define RF69_AFC_CLEAR                                0b00000010  //  1     1     clear AFC register
#define RF69_AFC_START                                0b00000001  //  0     0     start AFC
 
// RF69_REG_RSSI_CONFIG
#define RF69_RSSI_RUNNING                             0b00000000  //  1     1     RSSI status: on-going
#define RF69_RSSI_DONE                                0b00000010  //  1     1                  done
#define RF69_RSSI_START                               0b00000001  //  0     0     start RSSI measurement
 
// RF69_REG_DIO_MAPPING_1
#define RF69_DIO0_CONT_MODE_READY                     0b11000000  //  7     6
#define RF69_DIO0_CONT_PLL_LOCK                       0b00000000  //  7     6
#define RF69_DIO0_CONT_SYNC_ADDRESS                   0b00000000  //  7     6
#define RF69_DIO0_CONT_TIMEOUT                        0b01000000  //  7     6
#define RF69_DIO0_CONT_RSSI                           0b10000000  //  7     6
#define RF69_DIO0_CONT_TX_READY                       0b01000000  //  7     6
#define RF69_DIO0_PACK_PLL_LOCK                       0b11000000  //  7     6
#define RF69_DIO0_PACK_CRC_OK                         0b00000000  //  7     6
#define RF69_DIO0_PACK_PAYLOAD_READY                  0b01000000  //  7     6
#define RF69_DIO0_PACK_SYNC_ADDRESS                   0b10000000  //  7     6
#define RF69_DIO0_PACK_RSSI                           0b11000000  //  7     6
#define RF69_DIO0_PACK_PACKET_SENT                    0b00000000  //  7     6
#define RF69_DIO0_PACK_TX_READY                       0b01000000  //  7     6
#define RF69_DIO1_CONT_PLL_LOCK                       0b00110000  //  5     4
#define RF69_DIO1_CONT_DCLK                           0b00000000  //  5     4
#define RF69_DIO1_CONT_RX_READY                       0b00010000  //  5     4
#define RF69_DIO1_CONT_SYNC_ADDRESS                   0b00110000  //  5     4
#define RF69_DIO1_CONT_TX_READY                       0b00010000  //  5     4
#define RF69_DIO1_PACK_FIFO_LEVEL                     0b00000000  //  5     4
#define RF69_DIO1_PACK_FIFO_FULL                      0b00010000  //  5     4
#define RF69_DIO1_PACK_FIFO_NOT_EMPTY                 0b00100000  //  5     4
#define RF69_DIO1_PACK_PLL_LOCK                       0b00110000  //  5     4
#define RF69_DIO1_PACK_TIMEOUT                        0b00110000  //  5     4
#define RF69_DIO2_CONT_DATA                           0b00000000  //  3     2
 
// RF69_REG_DIO_MAPPING_2
#define RF69_CLK_OUT_FXOSC                            0b00000000  //  2     0     ClkOut frequency: F(XOSC)
#define RF69_CLK_OUT_FXOSC_2                          0b00000001  //  2     0                       F(XOSC) / 2
#define RF69_CLK_OUT_FXOSC_4                          0b00000010  //  2     0                       F(XOSC) / 4
#define RF69_CLK_OUT_FXOSC_8                          0b00000011  //  2     0                       F(XOSC) / 8
#define RF69_CLK_OUT_FXOSC_16                         0b00000100  //  2     0                       F(XOSC) / 16
#define RF69_CLK_OUT_FXOSC_32                         0b00000101  //  2     0                       F(XOSC) / 31
#define RF69_CLK_OUT_RC                               0b00000110  //  2     0                       RC
#define RF69_CLK_OUT_OFF                              0b00000111  //  2     0                       disabled (default)
 
// RF69_REG_IRQ_FLAGS_1
#define RF69_IRQ_MODE_READY                           0b10000000  //  7     7     requested mode was set
#define RF69_IRQ_RX_READY                             0b01000000  //  6     6     Rx mode ready
#define RF69_IRQ_TX_READY                             0b00100000  //  5     5     Tx mode ready
#define RF69_IRQ_PLL_LOCK                             0b00010000  //  4     4     PLL is locked
#define RF69_IRQ_RSSI                                 0b00001000  //  3     3     RSSI value exceeded RssiThreshold
#define RF69_IRQ_TIMEOUT                              0b00000100  //  2     2     timeout occurred
#define RF69_IRQ_AUTO_MODE                            0b00000010  //  1     1     entered intermediate mode
#define RF69_SYNC_ADDRESS_MATCH                       0b00000001  //  0     0     sync address detected
 
// RF69_REG_IRQ_FLAGS_2
#define RF69_IRQ_FIFO_FULL                            0b10000000  //  7     7     FIFO is full
#define RF69_IRQ_FIFO_NOT_EMPTY                       0b01000000  //  6     6     FIFO contains at least 1 byte
#define RF69_IRQ_FIFO_LEVEL                           0b00100000  //  5     5     FIFO contains more than FifoThreshold bytes
#define RF69_IRQ_FIFO_OVERRUN                         0b00010000  //  4     4     FIFO overrun occurred
#define RF69_IRQ_PACKET_SENT                          0b00001000  //  3     3     packet was sent
#define RF69_IRQ_PAYLOAD_READY                        0b00000100  //  2     2     last payload byte received and CRC check passed
#define RF69_IRQ_CRC_OK                               0b00000010  //  1     1     CRC check passed
 
// RF69_REG_RSSI_THRESH
#define RF69_RSSI_THRESHOLD                           0xE4        //  7     0     RSSI threshold level (2 dB by default)
 
// RF69_REG_RX_TIMEOUT_1
#define RF69_TIMEOUT_RX_START_OFF                     0x00        //  7     0     RSSI interrupt timeout disabled (default)
#define RF69_TIMEOUT_RX_START                         0xFF        //  7     0     timeout will occur if RSSI interrupt is not received
 
// RF69_REG_RX_TIMEOUT_2
#define RF69_TIMEOUT_RSSI_THRESH_OFF                  0x00        //  7     0     PayloadReady interrupt timeout disabled (default)
#define RF69_TIMEOUT_RSSI_THRESH                      0xFF        //  7     0     timeout will occur if PayloadReady interrupt is not received
 
// RF69_REG_PREAMBLE_MSB + REG_PREAMBLE_MSB
#define RF69_PREAMBLE_MSB                             0x00        //  7     0     2-byte preamble size value
#define RF69_PREAMBLE_LSB                             0x03        //  7     0
 
// RF69_REG_SYNC_CONFIG
#define RF69_SYNC_OFF                                 0b00000000  //  7     7     sync word detection off
#define RF69_SYNC_ON                                  0b10000000  //  7     7     sync word detection on (default)
#define RF69_FIFO_FILL_CONDITION_SYNC                 0b00000000  //  6     6     FIFO fill condition: on SyncAddress interrupt (default)
#define RF69_FIFO_FILL_CONDITION                      0b01000000  //  6     6                          as long as the bit is set
#define RF69_SYNC_SIZE                                0b00001000  //  5     3     size of sync word: SyncSize + 1 bytes
#define RF69_SYNC_TOL                                 0b00000000  //  2     0     number of tolerated errors in sync word
 
// RF69_REG_SYNC_VALUE_1 - SYNC_VALUE_8
#define RF69_SYNC_BYTE_1                              0x01        //  7     0     sync word: 1st byte (MSB)
#define RF69_SYNC_BYTE_2                              0x01        //  7     0                2nd byte
#define RF69_SYNC_BYTE_3                              0x01        //  7     0                3rd byte
#define RF69_SYNC_BYTE_4                              0x01        //  7     0                4th byte
#define RF69_SYNC_BYTE_5                              0x01        //  7     0                5th byte
#define RF69_SYNC_BYTE_6                              0x01        //  7     0                6th byte
#define RF69_SYNC_BYTE_7                              0x01        //  7     0                7th byte
#define RF69_SYNC_BYTE_8                              0x01        //  7     0                8th byte (LSB)
 
// RF69_REG_PACKET_CONFIG_1
#define RF69_PACKET_FORMAT_FIXED                      0b00000000  //  7     7     fixed packet length (default)
#define RF69_PACKET_FORMAT_VARIABLE                   0b10000000  //  7     7     variable packet length
#define RF69_DC_FREE_NONE                             0b00000000  //  6     5     DC-free encoding: none (default)
#define RF69_DC_FREE_MANCHESTER                       0b00100000  //  6     5                       Manchester
#define RF69_DC_FREE_WHITENING                        0b01000000  //  6     5                       Whitening
#define RF69_CRC_OFF                                  0b00000000  //  4     4     CRC disabled
#define RF69_CRC_ON                                   0b00010000  //  4     4     CRC enabled (default)
#define RF69_CRC_AUTOCLEAR_ON                         0b00000000  //  3     3     discard packet when CRC check fails (default)
#define RF69_CRC_AUTOCLEAR_OFF                        0b00001000  //  3     3     keep packet when CRC check fails
#define RF69_ADDRESS_FILTERING_OFF                    0b00000000  //  2     1     address filtering: none (default)
#define RF69_ADDRESS_FILTERING_NODE                   0b00000010  //  2     1                        node
#define RF69_ADDRESS_FILTERING_NODE_BROADCAST         0b00000100  //  2     1                        node or broadcast
 
// RF69_REG_PAYLOAD_LENGTH
#define RF69_PAYLOAD_LENGTH                           0xFF        //  7     0     payload length
 
// RF69_REG_AUTO_MODES
#define RF69_ENTER_COND_NONE                          0b00000000  //  7     5     condition for entering intermediate mode: none, AutoModes disabled (default)
#define RF69_ENTER_COND_FIFO_NOT_EMPTY                0b00100000  //  7     5                                               FifoNotEmpty rising edge
#define RF69_ENTER_COND_FIFO_LEVEL                    0b01000000  //  7     5                                               FifoLevel rising edge
#define RF69_ENTER_COND_CRC_OK                        0b01100000  //  7     5                                               CrcOk rising edge
#define RF69_ENTER_COND_PAYLOAD_READY                 0b10000000  //  7     5                                               PayloadReady rising edge
#define RF69_ENTER_COND_SYNC_ADDRESS                  0b10100000  //  7     5                                               SyncAddress rising edge
#define RF69_ENTER_COND_PACKET_SENT                   0b11000000  //  7     5                                               PacketSent rising edge
#define RF69_ENTER_COND_FIFO_EMPTY                    0b11100000  //  7     5                                               FifoNotEmpty falling edge
#define RF69_EXIT_COND_NONE                           0b00000000  //  4     2     condition for exiting intermediate mode: none, AutoModes disabled (default)
#define RF69_EXIT_COND_FIFO_EMPTY                     0b00100000  //  4     2                                              FifoNotEmpty falling edge
#define RF69_EXIT_COND_FIFO_LEVEL                     0b01000000  //  4     2                                              FifoLevel rising edge
#define RF69_EXIT_COND_CRC_OK                         0b01100000  //  4     2                                              CrcOk rising edge
#define RF69_EXIT_COND_PAYLOAD_READY                  0b10000000  //  4     2                                              PayloadReady rising edge
#define RF69_EXIT_COND_SYNC_ADDRESS                   0b10100000  //  4     2                                              SyncAddress rising edge
#define RF69_EXIT_COND_PACKET_SENT                    0b11000000  //  4     2                                              PacketSent rising edge
#define RF69_EXIT_COND_TIMEOUT                        0b11100000  //  4     2                                              timeout rising edge
#define RF69_INTER_MODE_SLEEP                         0b00000000  //  1     0     intermediate mode: sleep (default)
#define RF69_INTER_MODE_STANDBY                       0b00000001  //  1     0                        standby
#define RF69_INTER_MODE_RX                            0b00000010  //  1     0                        Rx
#define RF69_INTER_MODE_TX                            0b00000011  //  1     0                        Tx
 
// RF69_REG_FIFO_THRESH
#define RF69_TX_START_CONDITION_FIFO_LEVEL            0b00000000  //  7     7     packet transmission start condition: FifoLevel
#define RF69_TX_START_CONDITION_FIFO_NOT_EMPTY        0b10000000  //  7     7                                          FifoNotEmpty (default)
#define RF69_FIFO_THRESHOLD                           0b00001111  //  6     0     default threshold to trigger FifoLevel interrupt
 
// RF69_REG_PACKET_CONFIG_2
#define RF69_INTER_PACKET_RX_DELAY                    0b00000000  //  7     4     delay between FIFO empty and start of new RSSI phase
#define RF69_RESTART_RX                               0b00000100  //  2     2     force receiver into wait mode
#define RF69_AUTO_RX_RESTART_OFF                      0b00000000  //  1     1     auto Rx restart disabled
#define RF69_AUTO_RX_RESTART_ON                       0b00000010  //  1     1     auto Rx restart enabled (default)
#define RF69_AES_OFF                                  0b00000000  //  0     0     AES encryption disabled (default)
#define RF69_AES_ON                                   0b00000001  //  0     0     AES encryption enabled, payload size limited to 66 bytes
 
// RF69_REG_TEST_LNA
#define RF69_TEST_LNA_BOOST_NORMAL                    0x1B        //  7     0
#define RF69_TEST_LNA_BOOST_HIGH                      0x2D        //  7     0
 
// RF69_REG_TEMP_1
#define RF69_TEMP_MEAS_START                          0b00001000  //  3     3     trigger temperature measurement
#define RF69_TEMP_MEAS_RUNNING                        0b00000100  //  2     2     temperature measurement status: on-going
#define RF69_TEMP_MEAS_DONE                           0b00000000  //  2     2                                     done
 
// RF69_REG_TEST_DAGC
#define RF69_CONTINUOUS_DAGC_NORMAL                   0x00        //  7     0     fading margin improvement:  normal mode
#define RF69_CONTINUOUS_DAGC_LOW_BETA_ON              0x20        //  7     0                                 improved mode for AfcLowBetaOn
#define RF69_CONTINUOUS_DAGC_LOW_BETA_OFF             0x30        //  7     0                                 improved mode for AfcLowBetaOff (default)
 
// RF69_REG_TEST_PA1
#define RF69_PA1_NORMAL                               0x55        //  7     0     PA_BOOST: none
#define RF69_PA1_20_DBM                               0x5D        //  7     0               +20 dBm
 
// RF69_REG_TEST_PA2
#define RF69_PA2_NORMAL                               0x70        //  7     0     PA_BOOST: none
#define RF69_PA2_20_DBM                               0x7C        //  7     0               +20 dBm
 
class RF69: public PhysicalLayer {
  public:
    // introduce PhysicalLayer overloads
    using PhysicalLayer::transmit;
    using PhysicalLayer::receive;
    using PhysicalLayer::startTransmit;
    using PhysicalLayer::readData;
 
    RF69(Module* module);
 
    // basic methods
 
    int16_t begin(float freq = 434.0, float br = 48.0, float freqDev = 50.0, float rxBw = 125.0, int8_t power = 10, uint8_t preambleLen = 16);
 
    void reset();
 
    int16_t transmit(uint8_t* data, size_t len, uint8_t addr = 0) override;
 
    int16_t receive(uint8_t* data, size_t len) override;
 
    int16_t sleep();
 
    int16_t standby() override;
 
    int16_t transmitDirect(uint32_t frf = 0) override;
 
    int16_t receiveDirect() override;
 
    int16_t packetMode();
 
    // hardware AES support
 
    void setAESKey(uint8_t* key);
 
    int16_t enableAES();
 
    int16_t disableAES();
 
    // interrupt methods
 
    void setDio0Action(void (*func)(void));
 
    void clearDio0Action();
 
    void setDio1Action(void (*func)(void));
 
    void clearDio1Action();
 
    int16_t startTransmit(uint8_t* data, size_t len, uint8_t addr = 0) override;
 
    int16_t startReceive();
 
    int16_t readData(uint8_t* data, size_t len) override;
 
    // configuration methods
 
    int16_t setFrequency(float freq);
 
    int16_t setBitRate(float br);
 
    int16_t setRxBandwidth(float rxBw);
 
    int16_t setFrequencyDeviation(float freqDev) override;
 
    int16_t setOutputPower(int8_t power, bool highPower = false);
 
    int16_t setSyncWord(uint8_t* syncWord, size_t len, uint8_t maxErrBits = 0);
 
    int16_t setPreambleLength(uint8_t preambleLen);
 
    int16_t setNodeAddress(uint8_t nodeAddr);
 
    int16_t setBroadcastAddress(uint8_t broadAddr);
 
    int16_t disableAddressFiltering();
 
    // measurement methods
 
    void setAmbientTemperature(int16_t tempAmbient);
 
    int16_t getTemperature();
 
    size_t getPacketLength(bool update = true) override;
 
    int16_t setOOK(bool enableOOK);
 
    int16_t setOokThresholdType(uint8_t type);
 
    int16_t fixedPacketLengthMode(uint8_t len = RF69_MAX_PACKET_LENGTH);
 
    int16_t variablePacketLengthMode(uint8_t maxLen = RF69_MAX_PACKET_LENGTH);
 
    int16_t enableSyncWordFiltering(uint8_t maxErrBits = 0);
 
    int16_t disableSyncWordFiltering();
 
    int16_t setCrcFiltering(bool crcOn = true);
 
    int16_t setPromiscuousMode(bool promiscuous = true);
 
    int16_t setDataShaping(uint8_t sh) override;
 
    int16_t setEncoding(uint8_t encoding) override;
 
    int16_t setLnaTestBoost(bool value);
 
    float getRSSI();
 
    void setRfSwitchPins(RADIOLIB_PIN_TYPE rxEn, RADIOLIB_PIN_TYPE txEn);
 
    uint8_t randomByte();
 
    int16_t getChipVersion();
 
    void setDirectAction(void (*func)(void));
 
    void readBit(RADIOLIB_PIN_TYPE pin);
 
#if !defined(RADIOLIB_GODMODE) && !defined(RADIOLIB_LOW_LEVEL)
  protected:
#endif
    Module* _mod;
 
#if !defined(RADIOLIB_GODMODE)
  protected:
#endif
 
    float _freq = 0;
    float _br = 0;
    float _rxBw = 0;
    bool _ook = false;
    int16_t _tempOffset = 0;
    int8_t _power = 0;
 
    size_t _packetLength = 0;
    bool _packetLengthQueried = false;
    uint8_t _packetLengthConfig = RF69_PACKET_FORMAT_VARIABLE;
 
    bool _promiscuous = false;
 
    uint8_t _syncWordLength = 2;
 
    int16_t config();
    int16_t directMode();
    int16_t setPacketMode(uint8_t mode, uint8_t len);
 
#if !defined(RADIOLIB_GODMODE)
  private:
#endif
    int16_t setMode(uint8_t mode);
    void clearIRQFlags();
};
 
#endif
 
#endif