Add in JVS pass through

src/lindbergh/baseboard.c

@@ -205,22 +205,18 @@ int baseboardIoctl(int fd, unsigned int request, void *data)
       }
       else if (jvsFileDescriptor >= 0)
       {
+
         write(jvsFileDescriptor, inputBuffer, jvsCommand.srcSize);
-        for (int i = 0; i < jvsCommand.srcSize; i++)
-          printf("%X ", inputBuffer[i]);
-        printf("\n");
 
         for (int i = 0; i < jvsCommand.srcSize; i++)
         {
           if (inputBuffer[i] == 0xF0)
           {
-            printf("SENSE LINE 3\n");
             setSenseLine(3);
           }
           else if (inputBuffer[i] == 0xF1)
           {
             setSenseLine(1);
-            printf("SENSE LINE 1\n");
           }
         }
       }
@@ -270,12 +266,13 @@ int baseboardIoctl(int fd, unsigned int request, void *data)
       }
       else if (jvsFileDescriptor >= 0)
       {
-        int count = read(jvsFileDescriptor, &sharedMemory[jvsCommand.destAddress], 255); 
+        int count = readBytes(jvsFileDescriptor, &sharedMemory[jvsCommand.destAddress], 255);
+
+        if (count == -1)
+          count = 0;
+
         _data[2] = jvsCommand.destAddress;
         _data[3] = count;
-        for (int i = 0; i < count; i++)
-          printf("%X ", sharedMemory[jvsCommand.destAddress + i]);
-        printf("\n");
       }
     }
     break;

src/lindbergh/serial.c

@@ -17,9 +17,10 @@
 #include <sys/ioctl.h>
 #include <linux/serial.h>
 
-
 #include "serial.h"
 
+#define TIMEOUT_SELECT 200
+
 int setSerialAttributes(int fd, int myBaud)
 {
   struct termios options;
@@ -38,8 +39,8 @@ int setSerialAttributes(int fd, int myBaud)
   options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
   options.c_oflag &= ~OPOST;
 
-  options.c_cc[VMIN] = 10;
+  options.c_cc[VMIN] = 0;
-  options.c_cc[VTIME] = 10; // One seconds (10 deciseconds)
+  options.c_cc[VTIME] = 0; // One seconds (10 deciseconds)
 
   tcsetattr(fd, TCSANOW, &options);
 
@@ -64,3 +65,25 @@ int setSerialAttributes(int fd, int myBaud)
 
   return 0;
 }
+
+int readBytes(int fd, unsigned char *buffer, int amount)
+{
+  fd_set fd_serial;
+  struct timeval tv;
+
+  FD_ZERO(&fd_serial);
+  FD_SET(fd, &fd_serial);
+
+  tv.tv_sec = 0;
+  tv.tv_usec = TIMEOUT_SELECT * 1000;
+
+  int filesReadyToRead = select(fd + 1, &fd_serial, NULL, NULL, &tv);
+
+  if (filesReadyToRead < 1)
+    return 0;
+
+  if (!FD_ISSET(fd, &fd_serial))
+    return 0;
+
+  return read(fd, buffer, amount);
+}

src/lindbergh/serial.h

@@ -1,2 +1,3 @@
 
 int setSerialAttributes(int fd, int myBaud);
+int readBytes(int fd, unsigned char *buffer, int amount);