refactor Functions to group everything connected to the vehicle to a central location

Application/Vehicle/Vehicle_can.c

@@ -0,0 +1,110 @@
+#include "Vehicle.h"
+#include "fdcan.h"
+#include "CLS.h"
+#include "CLS_BSP.h"
+#include "BSP_GPIO.h"
+#include "cmsis_os2.h"
+
+static uint64_t last_unlock_message_time = UINT64_MAX;
+static uint8_t car_can_brightness = 255;
+static float car_can_speed = 0;
+static int car_can_direction = 0;
+
+
+void Vehicle_Setup_CAN() {
+
+
+    FDCAN_FilterTypeDef sFilterConfig;
+    sFilterConfig.IdType = FDCAN_STANDARD_ID;
+    sFilterConfig.FilterIndex = 0;
+    sFilterConfig.FilterType = CLS_BSP_CAN_FILTER_LIST;
+    sFilterConfig.FilterConfig = FDCAN_FILTER_TO_RXFIFO1;
+    sFilterConfig.FilterID1 = 0x391;
+    sFilterConfig.FilterID2 = 0x395;
+    HAL_FDCAN_ConfigFilter(&hfdcan2, &sFilterConfig);
+
+    sFilterConfig.FilterIndex = 1;
+    sFilterConfig.FilterID1 = 0x351;
+    sFilterConfig.FilterID2 = 0x635;
+    HAL_FDCAN_ConfigFilter(&hfdcan2, &sFilterConfig);
+
+}
+
+
+static void rx_unlock(uint8_t * RxData ) {
+    if (RxData[1]  == 0x04)
+        {
+            // car was unlocked
+            last_unlock_message_time = osKernelGetTickCount();
+        } 
+        else if (RxData[1]  ==0x80)
+        {
+            // car was locked
+            if (!BSP_GPIO_K15isSet()) {
+                NVIC_SystemReset();
+            }
+        }
+
+}
+
+
+static void rx_speed(uint8_t *  RxData) {
+    // speed signal 
+    // AA BB XX YY 00 00 00 00 
+    // Speed (XX*(2^8)+(YY-1))/190
+    // direction AA = 0x00 forward, 0x02 backward
+    uint16_t speed = (RxData[2] << 8) + RxData[3];
+    float speed_kmh = (speed - 1) / 190.0;
+    car_can_speed = speed_kmh;
+    car_can_direction = RxData[0];
+    //ULOG_DEBUG("Speed: %f, Direction: %d", car_can_speed, car_can_direction);
+
+}
+
+static void rx_brightness(uint8_t* RxData) {
+    // scale the brightness to 0 - 255 only using integer math
+    car_can_brightness = ((uint32_t)RxData[0] * 255) / 100;
+    //ULOG_DEBUG("Brightness: %d", car_can_brightness);
+}
+
+void Vehicle_Receive_CAN( FDCAN_RxHeaderTypeDef RxHeader, uint8_t* RxData) {
+
+                if(RxHeader.Identifier == 0x391) {
+                    rx_unlock(RxData);
+                }
+
+                if (RxHeader.Identifier == 0x395) {
+                    rx_unlock(RxData);
+                }
+
+
+                if (RxHeader.Identifier == 0x351) {
+                    rx_speed(RxData);
+                }
+
+                // brightness knob in 0 - 100
+                if (RxHeader.Identifier == 0x635) {
+                    rx_brightness(RxData);
+                }
+
+}
+
+
+
+bool Vehicle_gotUnlockMessage() {
+    return last_unlock_message_time != UINT64_MAX;
+}
+
+
+
+uint8_t Vehicle_Brightness() {
+    return car_can_brightness;
+}
+
+float Vehicle_Speed() {
+    return car_can_speed;
+}
+
+int Vehicle_DirectionIsForward() {
+    return car_can_direction == 0;
+}