Device 420 with support for Spacewar consoles.

emu/Makefile

@@ -11,8 +11,8 @@ LIBS=-lpthread -lm
 SDLLIBS=`sdl2-config --libs` `pkg-config SDL2_image --libs`
 
 
-pdp6: main_panel.c dis340.c chargen.inc $(SRC) $(H)
-	$(CC) -o $@ $(CFLAGS) $(SDLFLAGS) main_panel.c dis340.c $(SRC) $(LIBS) $(SDLLIBS)
+pdp6: main_panel.c dis340.c chargen.inc joy.c $(SRC) $(H)
+	$(CC) -o $@ $(CFLAGS) $(SDLFLAGS) main_panel.c dis340.c joy.c $(SRC) $(LIBS) $(SDLLIBS)
 pdp6_s: main_serial.c $(SRC) $(H)
 	$(CC) -o $@ $(CFLAGS) main_serial.c $(SRC) $(LIBS)
 

emu/cmd.c

@@ -235,6 +235,7 @@ DevDef definitions[] = {
 	{ DX_IDENT, makedx },
 #ifdef GRAPHICS
 	{ DIS_IDENT, makedis },
+	{ JOY_IDENT, makejoy },
 #endif
 	{ NETMEM_IDENT, makenetmem },
 	{ NETCONS_IDENT, makenetcons },

emu/joy.c

@@ -0,0 +1,199 @@
+#include "pdp6.h"
+#include <SDL2/SDL.h>
+
+char *joy_ident = JOY_IDENT;
+
+typedef struct Joy Joy;
+struct Joy
+{
+	Device dev;
+	IOBus *bus;
+	int pia_data;
+	int pia_spec;
+};
+
+
+#define HAVE_GAMECONTROLLERFROMINSTANCEID \
+  ((SDL_MAJOR_VERSION > 2) || (SDL_MAJOR_VERSION == 2 && \
+   (SDL_MINOR_VERSION > 0) || (SDL_PATCHLEVEL >= 4)))
+
+static void
+joyinit(void)
+{
+  SDL_Joystick *y;
+  int i, n;
+
+  SDL_InitSubSystem(SDL_INIT_JOYSTICK);
+#if HAVE_GAMECONTROLLERFROMINSTANCEID
+  SDL_InitSubSystem(SDL_INIT_GAMECONTROLLER);
+#endif
+
+  if (SDL_JoystickEventState (SDL_ENABLE) < 0) {
+    fprintf (stderr, "Joystick event state failure\r\n");
+    return;
+  }
+
+#if HAVE_GAMECONTROLLERFROMINSTANCEID
+  if (SDL_GameControllerEventState (SDL_ENABLE) < 0) {
+    fprintf (stderr, "Game controller event state failure\r\n");
+    return;
+  }
+#endif
+
+  n = SDL_NumJoysticks();
+
+  fprintf (stderr, "Controllers: %d\r\n", n);
+
+  for (i = 0; i < n; i++) {
+#if HAVE_GAMECONTROLLERFROMINSTANCEID
+    SDL_GameController *x;
+    if (SDL_IsGameController (i)) {
+      x = SDL_GameControllerOpen (i);
+      if (x == NULL) {
+        fprintf (stderr, "Controller %d FAIL\r\n", i);
+      } else {
+        fprintf (stderr, "Controller %d OK\r\n", i);
+        printf("Name: %s\r\n", SDL_GameControllerNameForIndex(i));
+      }
+    } else
+#endif
+    {
+      y = SDL_JoystickOpen (i);
+      if (y == NULL) {
+        fprintf (stderr, "Joystick %d FAIL\r\n", i);
+      } else {
+        fprintf (stderr, "Joystick %d OK\r\n", i);
+        printf("Name: %s\r\n", SDL_JoystickNameForIndex(i));
+        printf("Number of Axes: %d\r\n", SDL_JoystickNumAxes(y));
+        printf("Number of Buttons: %d\r\n", SDL_JoystickNumButtons(y));
+        printf("Number of Balls: %d\r\n", SDL_JoystickNumBalls(y));
+      }
+    }
+  }
+}
+
+static word bits = 0777777777777;
+
+void joy_motion (SDL_JoyAxisEvent *ev)
+{
+  int n = ev->which;
+  n *= 9;
+
+  if (ev->axis == 0) {
+    bits |= 0600LL << n;
+    if (ev->value < -10000)
+      bits &= ~(0200LL << n);
+    if (ev->value > 10000)
+      bits &= ~(0400LL << n);
+  } else if (ev->axis == 1) {
+    bits |= 0100LL << n;
+    if (ev->value < -3000)
+      bits &= ~(0100LL << n);
+  }
+}
+
+void joy_button (SDL_JoyButtonEvent *ev)
+{
+  int n = ev->which;
+  word y = 0;
+  n *= 9;
+
+  switch (ev->button) {
+  case 0: y = 020; break; //Torpedo
+  case 1: y = 040; break; //Hyperspace
+  }
+
+  if (ev->state)
+    bits &= ~(y << n);
+  else
+    bits |= y << n;
+}
+
+void controller_motion (SDL_ControllerAxisEvent *event)
+{
+  SDL_JoyAxisEvent e;
+  e.which = event->which;
+  e.axis = event->axis;
+  e.value = event->value;
+  joy_motion (&e);
+}
+
+void controller_button (SDL_ControllerButtonEvent *event)
+{
+  SDL_JoyButtonEvent e;
+  SDL_GameControllerButtonBind b;
+  SDL_GameController *c;
+
+#if HAVE_GAMECONTROLLERFROMINSTANCEID
+  c = SDL_GameControllerFromInstanceID (event->which);
+#endif
+  b = SDL_GameControllerGetBindForButton (c, event->button);
+
+  e.which = event->which;
+  e.button = b.value.button;
+  e.state = event->state;
+  joy_button (&e);
+}
+
+
+
+static void
+wake_joy(void *dev)
+{
+	Joy *joy;
+	IOBus *bus;
+
+	joy = dev;
+	bus = joy->bus;
+
+	if(bus->devcode == JOY){
+		if(IOB_STATUS){
+		}
+		if(IOB_DATAI){
+                  bus->c12 |= bits;
+		}
+		if(IOB_CONO_CLEAR){
+		}
+		if(IOB_CONO_SET){
+		}
+		if(IOB_DATAO_CLEAR){
+		}
+		if(IOB_DATAO_SET){
+		}
+	}
+}
+
+static void
+joyioconnect(Device *dev, IOBus *bus)
+{
+	Joy *joy;
+	joy = (Joy*)dev;
+	joy->bus = bus;
+	bus->dev[JOY] = (Busdev){ joy, wake_joy, 0 };
+}
+
+
+static Device joyproto = {
+	nil, nil, "",
+	nil, nil,
+	joyioconnect,
+	nil, nil
+};
+
+Device*
+makejoy(int argc, char *argv[])
+{
+	Joy *joy;
+	Task t;
+
+	joy = malloc(sizeof(Joy));
+	memset(joy, 0, sizeof(Joy));
+
+	joy->dev = joyproto;
+	joy->dev.type = joy_ident;
+
+	//addtask(t);
+        joyinit();
+
+	return &joy->dev;
+}

emu/main_panel.c

@@ -1172,6 +1172,11 @@ usage(void)
 	exit(1);
 }
 
+extern void joy_motion (SDL_JoyAxisEvent *event);
+extern void joy_button (SDL_JoyButtonEvent *event);
+extern void controller_motion (SDL_ControllerAxisEvent *event);
+extern void controller_button (SDL_ControllerButtonEvent *event);
+
 int
 threadmain(int argc, char *argv[])
 {
@@ -1276,6 +1281,20 @@ void main340(void);
 				mbev = (SDL_MouseButtonEvent*)&ev;
 				mouse(mbev->button, mbev->state, mbev->x, mbev->y);
 				break;
+			case SDL_CONTROLLERAXISMOTION:
+			  controller_motion (&ev.caxis);
+			  break;
+			case SDL_JOYAXISMOTION:
+			  joy_motion (&ev.jaxis);
+			  break;
+			case SDL_JOYBUTTONUP:
+			case SDL_JOYBUTTONDOWN:
+			  joy_button (&ev.jbutton);
+			  break;
+			case SDL_CONTROLLERBUTTONUP:
+			case SDL_CONTROLLERBUTTONDOWN:
+			  controller_button (&ev.cbutton);
+			  break;
 			case SDL_KEYDOWN:
 				keydown(ev.key.keysym);
 				break;

emu/pdp6.h

@@ -660,6 +660,12 @@ Device *makedis(int argc, char *argv[]);
 extern char *dis_ident;
 
 
+#define JOY (0420>>2)
+#define JOY_IDENT "joy420"
+Device *makejoy(int argc, char *argv[]);
+extern char *joy_ident;
+
+
 typedef struct Netmem Netmem;
 struct Netmem
 {