Diff: iserial2.h

Revision:

0:56a3009221d3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/iserial2.h	Tue Aug 12 11:01:31 2014 +0000
@@ -0,0 +1,163 @@
+//--------------------------------------------------------------------------------------------
+//Original Property of: charmedlabs.com/pixystart -> arduino_pixy-x.y.z.zip 
+//
+//Modifications made by: Mathieu Malone
+//Modifications: Modified Arduino code to function with mbed development platform
+//Output Method: This program uses "Serial pc(USBTX, USBRX)" in order to allow communication
+//               between the mbed platform and putty terminal through USB
+//
+//Latest update by: Mathieu Malone
+//Date of last update: July 24th, 2014
+//--------------------------------------------------------------------------------------------
+//
+// begin license header
+//
+// This file is part of Pixy CMUcam5 or "Pixy" for short
+//
+// All Pixy source code is provided under the terms of the
+// GNU General Public License v2 (http://www.gnu.org/licenses/gpl-2.0.html).
+// Those wishing to use Pixy source code, software and/or
+// technologies under different licensing terms should contact us at
+// cmucam@cs.cmu.edu. Such licensing terms are available for
+// all portions of the Pixy codebase presented here.
+//
+// end license header
+//
+
+#ifndef _ISERIAL_H2
+#define _ISERIAL_H2
+
+typedef uint32_t (*SerialCallback2)(uint8_t *data2, uint32_t len2); 
+
+// circular queue, for receiving data
+template <class BufType2> class ReceiveQ2
+{
+public:
+    ReceiveQ2(uint32_t size2)
+    {
+        m_size2 = size2;
+        m_buf2 = new BufType2[m_size2];
+        m_read2 = 0;
+        m_write2 = 0;
+        m_produced2 = 0;
+        m_consumed2 = 0;
+    }
+
+    ~ReceiveQ2()
+    {
+        delete [] m_buf2;
+    }
+
+    inline int32_t receiveLen2()
+    {
+        return m_produced2 - m_consumed2;
+    }
+
+    inline int32_t freeLen2()
+    {
+        return m_size2 - receiveLen2();
+    }
+
+    inline int read(BufType2 *data2)
+    {
+        if (receiveLen2()<=0)
+            return 0;
+        *data2 = m_buf2[m_read2++];
+        m_consumed2++;
+
+        if (m_read2==m_size2)
+            m_read2 = 0;
+
+        return 1;
+    }
+
+    inline int write(BufType2 data2)
+    {
+        if (freeLen2()<=0)
+            return 0; 
+
+        m_buf2[m_write2++] = data2;
+        m_produced2++;
+
+        if (m_write2==m_size2)
+            m_write2 = 0;
+
+        return 1;
+    }
+
+    uint32_t m_size2;
+    BufType2 *m_buf2;
+    uint32_t m_read2;
+    uint32_t m_write2;
+    uint32_t m_produced2;
+    uint32_t m_consumed2;
+};
+
+
+// linear queue, to buffer a chunk and dispense it out
+template <class BufType2> class TransmitQ2
+{
+public:
+    TransmitQ2(uint32_t size2, SerialCallback2 callback2)
+    {
+        m_size2 = size2;
+        m_buf2 = new BufType1[m_size1];
+        m_read2 = 0;
+        m_len2 = 0;
+        m_callback2= callback2;
+    }
+
+    ~TransmitQ2()
+    {
+        delete [] m_buf2;
+    }
+
+    int read(BufType2 *data2)
+    {
+        if (m_len2==0)
+        {
+            m_len2 = (*m_callback2)((uint8_t *)m_buf2, m_size2*sizeof(BufType2))/sizeof(BufType2);
+            if (m_len2==0)
+                return 0;
+            m_read2 = 0;
+        }
+        *data2 = m_buf2[m_read2++];
+        m_len2--;
+
+        return 1;
+    }
+
+    uint32_t m_size2;
+    BufType2 *m_buf2;
+    uint32_t m_read2;
+    uint32_t m_len2;
+    SerialCallback2 m_callback2;
+};
+
+// virtual interface to a serial device
+class Iserial2
+{
+public:
+    virtual int open()
+    {
+        return 0;
+    }
+    virtual int close()
+    {
+        return 0;
+    }
+    virtual int receive(uint8_t *buf2, uint32_t len2)
+    {
+        return 0;
+    }
+    virtual int receiveLen2()
+    {
+        return 0;
+    }
+    virtual int update2()
+    {
+        return 0;
+    }
+};
+
+#endif