142 lines
4.0 KiB
C
142 lines
4.0 KiB
C
/*
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* File: rfm69.h
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* Author: thebears
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*
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* Created on December 11, 2024, 2:05 PM
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*/
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#include "defines.h"
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#include "spi.h"
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#include "states.h"
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#include "uart.h"
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#include <avr/io.h>
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#include <stdbool.h>
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#include <string.h>
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#include <util/delay.h>
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#ifndef RFM69_H
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#define RFM69_H
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#define MODE_NOT_READY !(spi_read_rfm69_rt(REG_IRQ_FLAGS1) & VAL_IRQ_FLAGS1_MODEREADY)
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#define RX_PAYLOAD_READY spi_read_rfm69_rt(REG_IRQ_FLAGS2) & VAL_IRQ_FLAGS2_RX_PAYLOADREADY
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#define RX_PAYLOAD_NOT_READY !(RX_PAYLOAD_READY)
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#define TX_NOT_SENT !(spi_read_rfm69_rt(REG_IRQ_FLAGS2) & VAL_IRQ_FLAGS2_TX_SENT)
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define REG_FIFO 0x00
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#define REG_FREQ_MSB 0x07
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#define REG_FREQ_MIDDLE_SB 0x08
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#define REG_FREQ_LSB 0x09
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#define REG_FIFO_THRESH 0x3c
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#define REG_TEST_DAGC 0x6f
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#define REG_SYNC_CONFIG 0x2e
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#define REG_SYNC_VALUE_1 0x2f
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#define REG_OP_MODE 0x01
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#define REG_DATA_MODUL 0x02
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#define REG_BITRATE_MSB 0x03
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#define REG_BITRATE_LSB 0x04
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#define REG_FDEV_MSB 0x06
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#define REG_FDEV_LSB 0x06
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#define REG_RX_BW 0x19
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#define REG_AFC_BW 0x1A
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#define REG_PACKET_CONFIG_1 0x37
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#define REG_PREAMBLE_MSB 0x2C
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#define REG_PREAMBLE_LSB 0x2D
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#define REG_PA_LEVEL 0x11
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#define REG_TEST_PA1 0x5A
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#define REG_TEST_PA2 0x5C
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#define REG_IRQ_FLAGS1 0x27
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#define REG_IRQ_FLAGS2 0x28
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#define REG_RSSI_VALUE 0x24
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#define REG_FREQ_DEV_MSB 0x05
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#define VAL_FREQ_DEV_MSB 0x10
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#define VAL_TEST_DAGC_DEFAULT 0x30
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#define VAL_DATA_PACKET_MODE 0x00
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#define VAL_BITRATE_250kbps_MSB 0x00
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#define VAL_BITRATE_250kbps_LSB 0x80
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#define VAL_DATA_MODUL_OOK 0x01
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#define VAL_TX_START_FIFO_NOT_EMPTY 0x80
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#define VAL_FIFO_LEVEL_INTERRUPT 0x0f
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#define VAL_IRQ_FLAGS1_MODEREADY 0x80
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#define VAL_IRQ_FLAGS2_TX_SENT 0x08
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#define VAL_IRQ_FLAGS2_RX_PAYLOADREADY 0x04
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#define VAL_OPMODE_MASK 0x1c
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#define VAL_OPMODE_SLEEP 0x00
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#define VAL_OPMODE_STDBY 0x04
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#define VAL_OPMODE_TX 0x0c
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#define VAL_OPMODE_RX 0x10
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#define VAL_SYNCWORDS_ON 0x80
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#define VAL_SYNCWORDS_SIZE_2_BYTES 0x08
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#define VAL_PACKET_VARIABLE_LENGTH 0x80
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#define VAL_PACKET_WHITENING 0x40
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#define VAL_PACKET_CRCON 0x10
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#define VAL_PA_PA1_ON 0x40
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#define VAL_PA_PA2_ON 0x20
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#define VAL_PA_20dB 0x1F
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#define VAL_PALEVEL_PA1_ON 0x40
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#define VAL_PALEVEL_PA2_ON 0x20
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#define VAL_PALEVEL_PA1_OUTPUTPOWER 0x1f
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#define VAL_TEST_PA1_NORMAL 0x55
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#define VAL_TEST_PA2_NORMAL 0x70
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#define VAL_TEST_PA1_BOOST 0x5d
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#define VAL_TEST_PA2_BOOST 0x7c
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#define RFM69_SPI_WRITE 0x80
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// Target frequency is 433 MHz.
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// Equation is 32MHz/2^19 = 61.03515625. 433 MHz/61.03515625 = 7,094,272
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// 7,094,272 = 01101100 01000000 00000000 = 0x6C 0x40 0x00
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// Target frequency is 434.0 MHz.
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// Equation is 32MHz/2^19 = 61.03515625. 434 MHz/61.03515625 = 7,110,656
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// 7,110,656 = 01101100 01000000 00000000 = 0x6C 0x80 0x00
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#define VAL_FREQ_433MHz_MSB 0x6c
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#define VAL_FREQ_433MHz_MID_SB 0x80
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#define VAL_FREQ_433MHz_LSB 0x00
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DATA_SEND_STATUS send_message(tx_rx_data_struct tx_data);
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void rfm69_set_state(bool state);
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uint8_t spi_read_rfm69_rt(uint8_t reg);
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uint8_t spi_write_rfm69_rt(uint8_t reg, uint8_t val);
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uint8_t spi_write_rfm69_multiple_rt(uint8_t reg, const char* vals, uint8_t len);
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void set_rfm69_power_amp_boost();
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void set_rfm69_power_amp_normal();
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tx_rx_data_struct rfm69_read_msg();
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void reset_txrx_struct(tx_rx_data_struct* s);
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void rfm69_write_msg(tx_rx_data_struct txrxd);
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void set_rfm69_mode(uint8_t mode);
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void wait_rfm69_mode_ready();
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void set_rfm69_tx_mode();
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void wait_tx_sent();
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void wait_rx_payload_ready();
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void reset_rfm69();
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void set_rfm69_rx_mode();
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void set_rfm69_standby();
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void set_rfm69_sleep();
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void set_rfm69_idle();
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void set_rfm69_tx_power();
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void rfm69_init();
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bool wait_rx_payload_ready_timeout(uint16_t attempts);
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uint8_t hash(const char* str, uint8_t min, uint8_t max);
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uint32_t hash_3bytes(unsigned const char* str, uint8_t str_len);
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void uart_print_tx_rx_data(tx_rx_data_struct tx_rx_print);
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tx_rx_data_struct generate_wheel_counts_message(
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identifier_results idd, time_struct time, uint16_t battery_value, volatile uint16_t counts[15]);
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#ifdef __cplusplus
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}
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#endif
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#endif /* RFM69_H */
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