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digistump-avr/libraries/DigisparkCDC/DigiCDC.h

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+/*
+
+CDC Arduino Library by Ihsan Kehribar (kehribar.me) 
+and Digistump LLC (digistump.com) 
+- all changes made under the same license as V-USB
+
+
+ */
+#ifndef __DigiCDC_h__
+#define __DigiCDC_h__
+#include "usbdrv.h"
+
+
+
+#include "Stream.h"
+#include "ringBuffer.h"
+
+
+#define HW_CDC_TX_BUF_SIZE     32
+#define HW_CDC_RX_BUF_SIZE     32
+#define HW_CDC_BULK_OUT_SIZE     8
+#define HW_CDC_BULK_IN_SIZE      8
+
+
+
+/* library functions and variables start */
+static uint8_t tmp[HW_CDC_BULK_IN_SIZE];
+static uint8_t index = 0;
+
+static RingBuffer_t rxBuf;
+static uint8_t      rxBuf_Data[HW_CDC_RX_BUF_SIZE];
+
+static RingBuffer_t txBuf;
+static uint8_t      txBuf_Data[HW_CDC_TX_BUF_SIZE];
+
+
+class DigiCDCDevice  : public Stream {
+    public:
+        DigiCDCDevice();
+        void begin(), begin(unsigned long x);
+        void end();
+        void refresh();
+        void task();
+        void delay(long milli);
+        virtual int available(void);
+        virtual int peek(void);
+        virtual int read(void);
+        virtual void flush(void);
+        virtual size_t write(uint8_t);
+        using Print::write;
+        operator bool();
+    private:
+        void usbBegin();
+        void usbPollWrapper();
+ };
+
+
+extern DigiCDCDevice SerialUSB;
+
+
+#endif // __DigiCDC_h__