/** * Author: Dragino * Date: 16/01/2018 * * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.dragino.com * */ #ifndef _RADIO_H #define _RADIO_H #include #include #include #include #include #include #include #include #include #include #include #include #include "loragw_hal.h" // #################################################################### // Registers Mapping // #################################################################### #define REG_FIFO 0x00 #define REG_OPMODE 0x01 #define REG_FIFO_ADDR_PTR 0x0D #define REG_FIFO_TX_BASE_AD 0x0E #define REG_FIFO_RX_BASE_AD 0x0F #define REG_RX_NB_BYTES 0x13 #define REG_FIFO_RX_CURRENT_ADDR 0x10 #define REG_IRQ_FLAGS 0x12 #define REG_DIO_MAPPING_1 0x40 #define REG_DIO_MAPPING_2 0x41 #define REG_MODEM_CONFIG 0x1D #define REG_MODEM_CONFIG2 0x1E #define REG_MODEM_CONFIG3 0x26 #define REG_SYMB_TIMEOUT_LSB 0x1F #define REG_PKT_SNR_VALUE 0x19 #define REG_PAYLOAD_LENGTH 0x22 #define REG_IRQ_FLAGS_MASK 0x11 #define REG_MAX_PAYLOAD_LENGTH 0x23 #define REG_HOP_PERIOD 0x24 #define REG_SYNC_WORD 0x39 #define REG_VERSION 0x42 #define REG_PADAC 0x4D // common #define REG_PKTRSSI 0x1A #define REG_RSSI 0x1B #define REG_DETECTION_OPTIMIZE 0x31 #define REG_DETECTION_THRESHOLD 0x37 #define REG_PREAMBLE_MSB 0x20 #define REG_PREAMBLE_LSB 0x21 #define PAYLOAD_LENGTH 0x40 // preamble for lora networks (nibbles swapped) #define LORA_MAC_PREAMBLE 0x34 // LOW NOISE AMPLIFIER #define REG_LNA 0x0C #define LNA_MAX_GAIN 0x23 #define LNA_OFF_GAIN 0x00 #define LNA_LOW_GAIN 0x20 // ---------------------------------------- // Constants for radio registers #define OPMODE_LORA 0x80 #define OPMODE_MASK 0x07 #define OPMODE_SLEEP 0x00 #define OPMODE_STANDBY 0x01 #define OPMODE_FSTX 0x02 #define OPMODE_TX 0x03 #define OPMODE_FSRX 0x04 #define OPMODE_RX 0x05 #define OPMODE_RX_SINGLE 0x06 #define OPMODE_CAD 0x07 // ---------------------------------------- // Bits masking the corresponding IRQs from the radio #define IRQ_LORA_RXTOUT_MASK 0x80 #define IRQ_LORA_RXDONE_MASK 0x40 #define IRQ_LORA_CRCERR_MASK 0x20 #define IRQ_LORA_HEADER_MASK 0x10 #define IRQ_LORA_TXDONE_MASK 0x08 #define IRQ_LORA_CDDONE_MASK 0x04 #define IRQ_LORA_FHSSCH_MASK 0x02 #define IRQ_LORA_CDDETD_MASK 0x01 // ---------------------------------------- // DIO function mappings D0D1D2D3 #define MAP_DIO0_LORA_RXDONE 0x00 // 00------ #define MAP_DIO0_LORA_TXDONE 0x40 // 01------ #define MAP_DIO1_LORA_RXTOUT 0x00 // --00---- #define MAP_DIO1_LORA_NOP 0x30 // --11---- #define MAP_DIO2_LORA_NOP 0xC0 // ----11-- // sx1276 RegModemConfig2 #define SX1276_MC2_RX_PAYLOAD_CRCON 0x04 // sx1276 RegModemConfig3 #define SX1276_MC3_LOW_DATA_RATE_OPTIMIZE 0x08 #define SX1276_MC3_AGCAUTO 0x04 // FRF #define REG_FRF_MSB 0x06 #define REG_FRF_MID 0x07 #define REG_FRF_LSB 0x08 #define REG_PACONFIG 0x09 // common #define REG_PARAMP 0x0A // common #define REG_INVERTIQ 0x33 #define REG_INVERTIQ2 0x3B // CONF REG #define RXLORA_RXMODE_RSSI_REG_MODEM_CONFIG1 0x0A #define RXLORA_RXMODE_RSSI_REG_MODEM_CONFIG2 0x70 /*! * RegInvertIQ */ #define INVERTIQ_RX_MASK 0xBF #define INVERTIQ_RX_OFF 0x00 #define INVERTIQ_RX_ON 0x40 #define INVERTIQ_TX_MASK 0xFE #define INVERTIQ_TX_OFF 0x01 #define INVERTIQ_TX_ON 0x00 #define INVERTIQ2_ON 0x19 #define INVERTIQ2_OFF 0x1D #define MAXLINE 256 // ################################################################## // rxmode // ################################################################## // enum { RXMODE_SINGLE, RXMODE_SCAN, RXMODE_RSSI }; /******************************************************************************* * radio configure *******************************************************************************/ enum sf_t { SF7=7, SF8, SF9, SF10, SF11, SF12 }; typedef struct { uint8_t nss; uint8_t rst; uint8_t dio[3]; uint8_t spiport; uint32_t freq; uint32_t bw; uint8_t sf; uint8_t cr; uint8_t nocrc; uint8_t prlen; uint8_t invertio; uint8_t syncword; int8_t rf_power; char desc[8]; }radiodev; /******************************************************************************* * GPIO/SPI configure ********************************************************************************/ #define LOW 0 #define HIGH 1 #define GPIO_OUT 0 #define GPIO_IN 1 #define READ_ACCESS 0x00 #define WRITE_ACCESS 0x80 #define SPI_SPEED 8000000 #define SPI_DEV_RADIO "/dev/spidev2.0" /* * Read the state of the port. The port can be input * or output. * @gpio the GPIO pin to read from. * @return GPIO_HIGH if the pin is HIGH, GPIO_LOW if the pin is low. Output * is -1 when an error occurred. */ int digitalRead(int); void diditalWrite(int, int); /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ /* SPI initialization and configuration */ int spi_open(char *); /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ // Lora configure : Freq, SF, BW /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ void setpower(uint8_t, uint8_t); void setfreq(uint8_t, long); void setsf(uint8_t, int); void setsbw(uint8_t, long); void setcr(uint8_t, int); void setprlen(uint8_t, long); void setsyncword(uint8_t, int); void crccheck(uint8_t, uint8_t); bool get_radio_version(radiodev *); /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ void setup_channel(radiodev *); /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ void rxlora(int, uint8_t); /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ bool received(uint8_t, struct lgw_pkt_rx_s *); /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ void txlora(radiodev *, struct lgw_pkt_tx_s *); /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ void single_tx(radiodev *, uint8_t *, int); /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #endif //defined _RADIO_H