From 62835600e5ce02aae8ca5bd17ced394f7f9f72ec Mon Sep 17 00:00:00 2001
From: dborth <dborth@d154fe42-be53-0410-aac0-356034171556>
Date: Fri, 25 Sep 2009 18:45:51 +0000
Subject: [PATCH] add code for usb gecko debugging

---
 source/ngc/snes9xGX.cpp | 61 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/source/ngc/snes9xGX.cpp b/source/ngc/snes9xGX.cpp
index cf001bb..fac69e5 100644
--- a/source/ngc/snes9xGX.cpp
+++ b/source/ngc/snes9xGX.cpp
@@ -65,6 +65,10 @@ int ExitRequested = 0;
 char appPath[1024];
 int appLoadMethod = METHOD_AUTO;
 
+extern "C" {
+extern void __exception_setreload(int t);
+}
+
 /****************************************************************************
  * Shutdown / Reboot / Exit
  ***************************************************************************/
@@ -314,6 +318,60 @@ static void CreateAppPath(char origpath[])
 #endif
 }
 
+/****************************************************************************
+ * USB Gecko Debugging
+ ***************************************************************************/
+
+static bool gecko = false;
+static mutex_t gecko_mutex = 0;
+
+static ssize_t __out_write(struct _reent *r, int fd, const char *ptr, size_t len)
+{
+	u32 level;
+
+	if (!ptr || len <= 0 || !gecko)
+		return -1;
+
+	LWP_MutexLock(gecko_mutex);
+	level = IRQ_Disable();
+	usb_sendbuffer(1, ptr, len);
+	IRQ_Restore(level);
+	LWP_MutexUnlock(gecko_mutex);
+	return len;
+}
+
+const devoptab_t gecko_out = {
+	"stdout",	// device name
+	0,			// size of file structure
+	NULL,		// device open
+	NULL,		// device close
+	__out_write,// device write
+	NULL,		// device read
+	NULL,		// device seek
+	NULL,		// device fstat
+	NULL,		// device stat
+	NULL,		// device link
+	NULL,		// device unlink
+	NULL,		// device chdir
+	NULL,		// device rename
+	NULL,		// device mkdir
+	0,			// dirStateSize
+	NULL,		// device diropen_r
+	NULL,		// device dirreset_r
+	NULL,		// device dirnext_r
+	NULL,		// device dirclose_r
+	NULL		// device statvfs_r
+};
+
+void USBGeckoOutput()
+{
+	LWP_MutexInit(&gecko_mutex, false);
+	gecko = usb_isgeckoalive(1);
+	
+	devoptab_list[STD_OUT] = &gecko_out;
+	devoptab_list[STD_ERR] = &gecko_out;
+}
+
 /****************************************************************************
  * MAIN
  *
@@ -331,6 +389,9 @@ static void CreateAppPath(char origpath[])
 int
 main(int argc, char *argv[])
 {
+	//USBGeckoOutput(); // uncomment to enable USB gecko output
+	__exception_setreload(8);
+
 	#ifdef HW_DOL
 	ipl_set_config(6); // disable Qoob modchip
 	#endif