Upload files to "/"

psram_buffer.h

@@ -0,0 +1,58 @@
+// psram_buffer.h - PSRAM-based Ring Buffer for CAN FD Logger
+
+#ifndef PSRAM_BUFFER_H
+#define PSRAM_BUFFER_H
+
+#include <Arduino.h>
+#include "types.h"
+
+#define PSRAM_CAN_BUFFER_SIZE    (512 * 1024)
+#define PSRAM_SD_BUFFER_SIZE     (16 * 1024)
+#define PSRAM_SIGNAL_BUFFER_SIZE (4 * 1024)
+
+#define MAX_PSRAM_CAN_FRAMES     (PSRAM_CAN_BUFFER_SIZE / sizeof(CanFrame))
+
+class PSRAMRingBuffer {
+public:
+    PSRAMRingBuffer();
+    ~PSRAMRingBuffer();
+    
+    bool begin(size_t capacity);
+    bool push(const CanFrame& frame);
+    bool pop(CanFrame& frame);
+    bool peek(CanFrame& frame);
+    size_t available();
+    size_t capacity();
+    size_t freeSpace();
+    bool isFull();
+    bool isEmpty();
+    void clear();
+    void flush();
+    
+    CanFrame* getBuffer();
+    size_t getHead();
+    size_t getTail();
+
+private:
+    CanFrame* _buffer;
+    size_t _capacity;
+    volatile size_t _head;
+    volatile size_t _tail;
+    volatile size_t _count;
+    SemaphoreHandle_t _mutex;
+};
+
+extern PSRAMRingBuffer canFrameBuffer;
+
+bool initPSRAMBuffers();
+void deinitPSRAMBuffers();
+
+uint8_t* getSDWriteBuffer();
+uint8_t* getSignalBuffer();
+
+size_t getFreePSRAM();
+size_t getUsedPSRAM();
+size_t getTotalPSRAM();
+void printMemoryStatus();
+
+#endif // PSRAM_BUFFER_H