Diff: Matrix.h

Revision:

0:ea876cfd7385

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Matrix.h	Thu Aug 10 15:44:59 2017 +0000
@@ -0,0 +1,155 @@
+/*
+    Programmer: Roger McArdell
+    Date: 03/08/2017
+    Version 
+    V0.1    First version
+*/
+
+static uint8_t MatrixAddWrite = '\x88';
+static uint8_t MatrixAddRead = '\x89';
+
+// Prototypes
+void SwitchMatrix(uint8_t PortA, uint8_t PortB);
+void ReadMatrix(char Add,int Bytes);
+void WriteMatrix(string Contents);
+char GetConnectedStatus();
+
+bool HDMI1Sync = 0;
+bool HDMI2Sync = 0;
+bool HDMI3Sync = 0;
+bool HDMI4Sync = 0;
+bool ExternalSync = 0;
+
+void SwitchMatrix(uint8_t PortA, uint8_t PortB)
+{
+    //Split mode; Reg 02,byte 0 bit 3 = 1; TXA and TXB are the same 
+    //Mux mode;   Reg 02,byte 0 bit 3 = 0; TXA and TXB are individually selected, but must not be the same (default)
+    uint8_t TempA;
+    uint8_t TempB;
+    char data[2];
+    
+    printf("Switch Matrix, PortA: %d, PortB: %dr\n", PortA, PortB);
+    aboxPort.printf("MAT%d%d\n", IDNumber, PortA);
+    
+    TempA = PortA - 49;
+    
+    switch(PortB)
+    {
+        case'1': TempB = 0; // 0000 
+        case'2': TempB = 4; // 0100
+        case'3': TempB = 8; // 1000
+        case'4': TempB = 12;// 1100
+    }
+    
+    if (PortA == PortB)
+    {       
+        WriteMatrix("MR0288\x0D"); // select Split mode: Reg02, 10001000 \x88
+        
+        switch(PortA)
+        {
+            case'1': WriteMatrix("MR0700\x0D"); break;
+            case'2': WriteMatrix("MR0701\x0D"); break;
+            case'3': WriteMatrix("MR0702\x0D"); break;
+            case'4': WriteMatrix("MR0703\x0D"); break;
+        }
+    }
+    else
+    { 
+        WriteMatrix("MR0280\x0D"); // Select Mux mode: Reg02, 1000000 \x80
+        
+        data[0] = '\x07';
+        data[1] = TempA + TempB;;
+        
+        printf("Register: %d", data[0]);
+        printf(" With data: %d ",data[1]);
+        printf(" (numbers in decimal)\r\n");
+         
+        I2CHDMI.start(); // Not sure if this is required.
+        I2CHDMI.write(MatrixAddWrite, data, 2);   
+        I2CHDMI.stop();    
+    }   
+}
+void ReadMatrix(char SlaveAdd,int Bytes)
+{
+    char TempRead[Bytes]; 
+    I2CHDMI.start(); // Not sure if this is required.
+    I2CHDMI.write(MatrixAddWrite, &SlaveAdd, 1, true); //  "repeated-START condition" required, set by the true statement
+    I2CHDMI.read(MatrixAddRead, TempRead, Bytes);
+    I2CHDMI.stop();
+    
+    pc.printf("Register %d: \r\n",SlaveAdd);
+    for (uint8_t I = 0; I < Bytes; I++)
+    {
+        pc.printf("Value is %d: \r\n",TempRead[I]);
+    }   
+}
+
+void WriteMatrix(string Contents)
+{
+    char data[10];
+    uint8_t NoOfBytes = 0;
+    
+    //printf("1 Length: %d Contents: %s\r\n", Contents.length(), Contents.c_str());
+    //printf("\r\n");   
+    
+    uint8_t I = 0;
+    uint8_t J = 0;
+    bool Even = 1;
+    while (Contents[I] != '\x0D')
+    {
+        if (Even)
+        {
+            //printf("Even I=%d, Byte = %d ", I, Contents[I+2]);
+            if (Contents[I+2] >= 48 && Contents[I+2] <= 57)
+                data[J] = (Contents[I+2] - 48)*16; // move to the most significate nibble
+            else if (Contents[I+2] >= 65 && Contents[I+2] <= 70)
+                data[J] = (Contents[I+2] - 55)*16;
+            else if (Contents[I+2] >= 97 && Contents[I+2] <= 102)
+                data[J] = (Contents[I+2] - 87)*16;
+            Even = 0;    
+            //printf("data[J] = %d, J = %d\r\n", data[J], J);      
+        }
+        else
+        { 
+            //printf("Odd I=%d, Byte = %d ", I, Contents[I+2]);
+            if (Contents[I+2] >= 48 && Contents[I+2] <= 57)
+                data[J] = data[J] + (Contents[I+2] - 48);
+            else if (Contents[I+2] >= 65 && Contents[I+2] <= 70)
+                data[J] = data[J] + (Contents[I+2] - 55);
+            else if (Contents[I+2] >= 97 && Contents[I+2] <= 102)
+                data[J] = data[J] + (Contents[I+2] - 87); 
+            //printf("data[J] = %d, J = %d\r\n", data[J], J);   
+                
+            NoOfBytes = J;
+            J++;    
+            Even = 1; 
+        }  
+        I++;           
+    }     
+    pc.printf("Register: %d", data[0]);
+    pc.printf(" With data:");
+    for (I = 1; I < NoOfBytes; I++)
+    {
+        printf(" %d ",data[I]);
+    }
+    pc.printf(" (numbers in decimal)\r\n");
+     
+    I2CHDMI.start(); // Not sure if this is required.
+    I2CHDMI.write(MatrixAddWrite, data, NoOfBytes);   
+    I2CHDMI.stop();  
+}
+char GetConnectedStatus()
+{
+    char TempRead[3]; 
+    char SlaveAdd = '\x07';
+    I2CHDMI.start(); // Not sure if this is required.
+    I2CHDMI.write(MatrixAddWrite, &SlaveAdd, 1, true); //  "repeated-START condition" required, set by the true statement
+    I2CHDMI.read(MatrixAddRead, TempRead, 3);
+    I2CHDMI.stop();
+    
+    return TempRead[2];
+}
+    
+    
+    
+