[ppctty] quit if console is not deckard

Author: israpps

iop/debug/ppctty/src/main.c

@@ -4,7 +4,15 @@
 #include <excepman.h>
 #include "tty.h"
 
-IRX_ID("ppctty", 1, 0);
+IRX_ID(MODNAME, 1, 0);
+
+#define IS_DECKARD() \
+({ \
+    u16 iop_revision; \
+    asm("mfc0 %0, $15\n" \
+        : "=r"(iop_revision):); \
+    iop_revision == 0x30; \
+})
 
 volatile uint8_t *PPC_UART_TX = (volatile uint8_t *) 0x1F80380C;
 
@@ -19,7 +27,12 @@ int _start(int argc, char *argv[])
 {
     (void)argc;
     (void)argv;
-
+    if (!IS_DECKARD())
+    {
+        printf(MODNAME ": THIS PS2 IS NOT DECKARD\n");
+        return MODULE_NO_RESIDENT_END;
+    }
+    
     if(tty_init() != 0)
     {
         printf("Failed initializing PPC TTY system!\n");

iop/debug/ppctty/src/tty.c

@@ -13,9 +13,10 @@ IOP->PPC TTY
 #include <intrman.h>
 #include <ioman.h>
 #include <thsemap.h>
+#include "tty.h"
 
 #ifdef DEBUG
-#define DPRINTF(fmt, x...) printf("ppctty: "fmt, ##x)
+#define DPRINTF(fmt, x...) printf(MODNAME ": " fmt, ##x)
 #else
 #define DPRINTF(x...)
 #endif

iop/debug/ppctty/src/tty.h

@@ -3,7 +3,7 @@
 
 #include "tamtypes.h"
 #include <stdint.h>
-
+#define MODNAME "ppctty"
 // Prototypes
 int tty_init(void);