From a6f5ac472061b1d75c5d199ab256833a51f2b52c Mon Sep 17 00:00:00 2001
From: "ramapcsx2.code" <ramapcsx2.code@96395faa-99c1-11dd-bbfe-3dabce05a288>
Date: Wed, 20 Mar 2013 14:50:56 +0000
Subject: [PATCH] DEV9ghzdrk: Changed the stack init hack so it is consistent
 on plugin resets and removed a part of it that broke OPL. Hopefully this
 works for all use cases, but we should fix the initial problem anyway.

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5601 96395faa-99c1-11dd-bbfe-3dabce05a288
---
 plugins/dev9ghzdrk/DEV9.cpp       | 3 +++
 plugins/dev9ghzdrk/Win32/smap.cpp | 6 ++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/plugins/dev9ghzdrk/DEV9.cpp b/plugins/dev9ghzdrk/DEV9.cpp
index 992d83043e..703ac8dd7c 100644
--- a/plugins/dev9ghzdrk/DEV9.cpp
+++ b/plugins/dev9ghzdrk/DEV9.cpp
@@ -168,12 +168,15 @@ void CALLBACK DEV9shutdown() {
 #endif
 }
 
+bool tx_p_first;
 s32 CALLBACK DEV9open(void *pDsp) 
 {
 	DEV9_LOG("DEV9open\n");
 	LoadConf();
 	DEV9_LOG("open r+: %s\n", config.Hdd);
 	config.HddSize = 8*1024;
+	
+	tx_p_first=false; // reset stack init hack so it works on game reboots 
 
 	iopPC = (u32*)pDsp;
 	
diff --git a/plugins/dev9ghzdrk/Win32/smap.cpp b/plugins/dev9ghzdrk/Win32/smap.cpp
index 3e1d1c8c1d..b48bbb08de 100644
--- a/plugins/dev9ghzdrk/Win32/smap.cpp
+++ b/plugins/dev9ghzdrk/Win32/smap.cpp
@@ -107,11 +107,12 @@ void rx_process(NetPacket* pk)
 								//note that this _is_ wrong since the IOP interrupt system is not thread safe.. but nothing i can do about that
 }
 
-bool tx_p_first=false;
 u32 wswap(u32 d)
 {
 	return (d>>16)|(d<<16);
 }
+
+extern bool tx_p_first;
 void tx_process()
 {
 	//we loop based on count ? or just *use* it ?
@@ -119,9 +120,10 @@ void tx_process()
 	//spams// printf("tx_process : %d cnt frames !\n",cnt);
 
 	//Hack needed for GT4. Game fails to init the adapter otherwise (and notices about that via IOP kprintf on bootup).
+	//Reseting SMAP_R_TXFIFO_FRAME_CNT to 0 however breaks OPL. Thankfully not doing that fixes the problem while GT4 still works. 
 	if (!tx_p_first)
 	{
-		dev9Ru8(SMAP_R_TXFIFO_FRAME_CNT)=0;
+		//dev9Ru8(SMAP_R_TXFIFO_FRAME_CNT)=0;
 		tx_p_first=true;
 		//THIS IS A HACK.without that the stack wont init, i guess its missing e3/emac emulation ..
 		emu_printf("WARN : First packet interrupt hack ..\n");