Implemented Low Level Compunications

can-interface/components/mcp2521/include/mcp2521.hpp

@@ -0,0 +1,98 @@
+#pragma once
+#include "reg.hpp"
+
+#include <stdint.h>
+
+#include "driver/gpio.h"
+#include "driver/spi_master.h"
+
+bool dummy_function(bool flag);
+
+
+enum MCP2521_RX_BUFFER {
+    RXB0 = 0,
+    RXB1 = 1
+};
+
+enum MCP2521_TX_BUFFER {
+    TXB0 = 0,
+    TXB1 = 1,
+    TXB2 = 2
+};
+
+enum MCP2521_BUFFER_TYPE {
+    ID = 0,
+    DATA = 1
+};
+
+class MCP2521_SPI_Interface {
+private:
+    char spi_rx_buffer[32];
+    char spi_tx_buffer[32];
+
+    spi_bus_config_t * spi_bus_config;
+    spi_device_interface_config_t spi_device_config;
+    spi_device_handle_t spi_device_handle;
+
+public:
+    spi_bus_config_t * getSPI_bus_config();
+
+    MCP2521_SPI_Interface(
+        spi_host_device_t spi_host,
+        spi_bus_config_t *bus_config,
+        gpio_num_t mosi, 
+        gpio_num_t miso, 
+        gpio_num_t sclk, 
+        gpio_num_t cs, 
+        gpio_num_t int_pin
+    );
+    MCP2521_SPI_Interface(
+        spi_host_device_t spi_host,
+        spi_bus_config_t *bus_config,
+        gpio_num_t cs, 
+        gpio_num_t int_pin
+    );
+
+    ~MCP2521_SPI_Interface();
+
+    static void initSPIBus(
+        spi_host_device_t spi_host,
+        gpio_num_t mosi, 
+        gpio_num_t miso, 
+        gpio_num_t sclk, 
+        spi_bus_config_t *bus_config
+    );
+
+    void initSPIDevice(
+        spi_host_device_t spi_host,
+        gpio_num_t cs
+    );
+
+    void deinitSPI();
+
+    void initPins(
+        gpio_num_t int_pin
+    );
+    void deinitPins();
+
+    void reset();
+    
+    void read_reg(uint8_t address, uint8_t *data, size_t length);
+    uint8_t read_reg(uint8_t address);
+
+    void read_rx_buf(MCP2521_RX_BUFFER buffer, MCP2521_BUFFER_TYPE type, uint8_t *data, size_t length);
+    
+    void write_reg(uint8_t address, uint8_t *data, size_t length);
+    void write_reg(uint8_t address, uint8_t data);
+
+    void write_tx_buf(MCP2521_TX_BUFFER buffer, MCP2521_BUFFER_TYPE type, uint8_t *data, size_t length);
+
+    void request_to_send(bool txb2, bool txb1, bool txb0);
+    void request_to_send(MCP2521_TX_BUFFER buffer);
+
+    uint8_t read_status();
+    uint8_t read_rx_status();
+
+    void bit_modify(uint8_t address, uint8_t mask, uint8_t data);
+};
+