Implement Multi-Bus CAN Interfaces

common-libaries/mcp2521_hardware_interface/esp_implementation_bus.cpp

@@ -0,0 +1,58 @@
+#ifdef ESP_PLATFORM
+#include "freertos/FreeRTOS.h"
+
+#include "mcp2521_hardware_esp_bus.hpp"
+#include "mcp2521_hardware_esp.hpp"
+
+MCP2521_HardwareHandle_ESPBus::MCP2521_HardwareHandle_ESPBus(
+        QueueHandle_t send_queue,
+        spi_host_device_t spi_host,
+        spi_bus_config_t * bus_config,
+        gpio_num_t cs, 
+        gpio_num_t int_pin
+) : MCP2521_HardwareHandle_ESP(spi_host, bus_config, cs, int_pin) {
+    this->send_queue = send_queue;
+    this->receive_queue = xQueueCreate(3, sizeof(spi_message_t));
+}
+
+void MCP2521_HardwareHandle_ESPBus::spi_transmit(spi_transaction_t *t) {
+    spi_message_t message = {
+        .transaction = t,
+        .queue = send_queue,
+        .spi_device_handle = spi_device_handle
+    };
+
+    xQueueSend(send_queue, &message, portMAX_DELAY);
+    xQueueReceive(receive_queue, &message, portMAX_DELAY);
+}
+
+void MCP2521_HardwareHandle_ESPBus::initPins(
+    gpio_num_t int_pin
+) {
+    canInterruptSemaphore = xSemaphoreCreateBinary();
+
+    gpio_config_t io_conf;
+    io_conf.intr_type = GPIO_INTR_NEGEDGE;
+    io_conf.mode = GPIO_MODE_INPUT;
+    io_conf.pin_bit_mask = 1 << int_pin;
+    io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
+    io_conf.pull_up_en = GPIO_PULLUP_ENABLE;
+    gpio_config(&io_conf);
+
+    gpio_isr_handler_add(int_pin, gpio_isr_can_handler, this);
+
+    char taskName[32];
+    sprintf(taskName, "canInterruptTask_%d", int_pin);
+
+    xTaskCreatePinnedToCore(
+        (TaskFunction_t)&handleInteruptTaskCallerFn,
+        taskName,
+        2048,
+        this,
+        5,
+        &canInterruptTaskHandle,
+        0
+    );
+}
+
+#endif