Add initial JVS pass through

src/lindbergh/baseboard.c

@@ -3,11 +3,25 @@
 #include <stdint.h>
 #include <string.h>
 #include <stdlib.h>
+#include <linux/serial.h>
+#include <termios.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+#include <time.h>
+#include <stdarg.h>
+#include <sys/ioctl.h>
+#include <linux/serial.h>
 
 #include "baseboard.h"
 
 #include "config.h"
 #include "jvs.h"
+#include "serial.h"
 
 #define SERIAL_STRING "FE11-X018012022X"
 
@@ -55,6 +69,7 @@ unsigned int sharedMemoryIndex = 0;
 uint8_t sharedMemory[1024 * 32] = {0};
 
 int selectReply = -1;
+int jvsFileDescriptor = -1;
 
 int initBaseboard()
 {
@@ -75,6 +90,16 @@ int initBaseboard()
 
   fseek(sram, 0, SEEK_SET);
 
+  if (getConfig()->emulateJVS == 0 && strcmp(getConfig()->jvsPath, "none") != 0)
+  {
+    jvsFileDescriptor = open(getConfig()->jvsPath, O_RDWR | O_NOCTTY | O_SYNC | O_NDELAY);
+    if (jvsFileDescriptor < 0)
+    {
+      printf("Error: Failed to open %s for JVS\n", getConfig()->jvsPath);
+    }
+    setSerialAttributes(jvsFileDescriptor, B115200);
+  }
+
   return 0;
 }
 
@@ -174,7 +199,31 @@ int baseboardIoctl(int fd, unsigned int request, void *data)
       jvsCommand.destAddress = _data[3];
       jvsCommand.destSize = _data[4];
       memcpy(inputBuffer, &sharedMemory[jvsCommand.srcAddress], jvsCommand.srcSize);
-      processPacket();
+      if (getConfig()->emulateJVS)
+      {
+        processPacket();
+      }
+      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");
+          }
+        }
+      }
     }
     break;
 
@@ -213,9 +262,21 @@ int baseboardIoctl(int fd, unsigned int request, void *data)
 
     case BASEBOARD_PROCESS_JVS:
     {
-      memcpy(&sharedMemory[jvsCommand.destAddress], outputBuffer, outputPacket.length + 3);
-      _data[2] = jvsCommand.destAddress;
-      _data[3] = outputPacket.length + 3;
+      if (getConfig()->emulateJVS)
+      {
+        memcpy(&sharedMemory[jvsCommand.destAddress], outputBuffer, outputPacket.length + 3);
+        _data[2] = jvsCommand.destAddress;
+        _data[3] = outputPacket.length + 3;
+      }
+      else if (jvsFileDescriptor >= 0)
+      {
+        int count = read(jvsFileDescriptor, &sharedMemory[jvsCommand.destAddress], 255); 
+        _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/config.c

@@ -136,7 +136,10 @@ int initConfig()
     config.fullscreen = 0;
     strcpy(config.eepromPath, "eeprom.bin");
     strcpy(config.sramPath, "sram.bin");
-    strcpy(config.jvsPath, "/dev/ttyUSB0");
+    strcpy(config.jvsPath, "none");
+    strcpy(config.driveboardPath, "none");
+    strcpy(config.motionboardPath, "none");
+    strcpy(config.rideboardPath, "none");
     config.width = 1024;
     config.height = 768;
     if (detectGame() != 0)

src/lindbergh/config.h

@@ -19,6 +19,9 @@ typedef struct
   char eepromPath[MAX_PATH_LENGTH];
   char sramPath[MAX_PATH_LENGTH];
   char jvsPath[MAX_PATH_LENGTH];
+  char rideboardPath[MAX_PATH_LENGTH];
+  char motionboardPath[MAX_PATH_LENGTH];
+  char driveboardPath[MAX_PATH_LENGTH];
   int width;
   int height;
   Game game;

src/lindbergh/jvs.c

@@ -638,3 +638,7 @@ int setAnalogue(JVSInput channel, int value)
     io.state.analogueChannel[channel] = value;
     return 1;
 }
+
+void setSenseLine(int _senseLine) {
+    senseLine = _senseLine;
+}

src/lindbergh/jvs.h

@@ -235,6 +235,7 @@ extern JVSPacket inputPacket, outputPacket;
 extern unsigned char outputBuffer[JVS_MAX_PACKET_SIZE], inputBuffer[JVS_MAX_PACKET_SIZE];
 
 int getSenseLine();
+void setSenseLine(int senseLine);
 
 JVSCapabilities *getCapabilities();
 JVSState *getState();

src/lindbergh/serial.c

@@ -0,0 +1,66 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include <linux/serial.h>
+#include <termios.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+#include <time.h>
+#include <stdarg.h>
+#include <sys/ioctl.h>
+#include <linux/serial.h>
+
+
+#include "serial.h"
+
+int setSerialAttributes(int fd, int myBaud)
+{
+  struct termios options;
+  int status;
+  tcgetattr(fd, &options);
+
+  cfmakeraw(&options);
+  cfsetispeed(&options, myBaud);
+  cfsetospeed(&options, myBaud);
+
+  options.c_cflag |= (CLOCAL | CREAD);
+  options.c_cflag &= ~PARENB;
+  options.c_cflag &= ~CSTOPB;
+  options.c_cflag &= ~CSIZE;
+  options.c_cflag |= CS8;
+  options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
+  options.c_oflag &= ~OPOST;
+
+  options.c_cc[VMIN] = 10;
+  options.c_cc[VTIME] = 10; // One seconds (10 deciseconds)
+
+  tcsetattr(fd, TCSANOW, &options);
+
+  ioctl(fd, TIOCMGET, &status);
+
+  status |= TIOCM_DTR;
+  status |= TIOCM_RTS;
+
+  ioctl(fd, TIOCMSET, &status);
+
+  usleep(100 * 1000); // 10mS
+
+  struct serial_struct serial_settings;
+
+  ioctl(fd, TIOCGSERIAL, &serial_settings);
+
+  serial_settings.flags |= ASYNC_LOW_LATENCY;
+  ioctl(fd, TIOCSSERIAL, &serial_settings);
+
+  tcflush(fd, TCIOFLUSH);
+  usleep(100 * 1000); // Required to make flush work, for some reason
+
+  return 0;
+}

src/lindbergh/serial.h

@@ -0,0 +1,2 @@
+
+int setSerialAttributes(int fd, int myBaud);