From 0ae7a75158fa0803b082b4644c99a551f6a8a0c2 Mon Sep 17 00:00:00 2001
From: Sir Richard <sir_richard@svn.reactos.org>
Date: Mon, 7 Jun 2010 20:59:46 +0000
Subject: [PATCH] [HAL]: Implement ISA BUS address translation.

svn path=/trunk/; revision=47678
---
 .../hal/halx86/generic/legacy/bus/isabus.c    | 25 ++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/reactos/hal/halx86/generic/legacy/bus/isabus.c b/reactos/hal/halx86/generic/legacy/bus/isabus.c
index 884e6d026bb..4d716a1060c 100644
--- a/reactos/hal/halx86/generic/legacy/bus/isabus.c
+++ b/reactos/hal/halx86/generic/legacy/bus/isabus.c
@@ -24,9 +24,28 @@ HalpTranslateIsaBusAddress(IN PBUS_HANDLER BusHandler,
                            IN OUT PULONG AddressSpace,
                            OUT PPHYSICAL_ADDRESS TranslatedAddress)
 {
-    DPRINT1("ISA Translate\n");
-    while (TRUE);
-    return FALSE;
+    BOOLEAN Status;
+    
+    /* Use system translation */
+    Status = HalpTranslateSystemBusAddress(BusHandler,
+                                           RootHandler,
+                                           BusAddress,
+                                           AddressSpace,
+                                           TranslatedAddress);
+    
+    /* If it didn't work and it was memory address space... */   
+    if (!(Status) && (*AddressSpace == 0))
+    {
+        /* Try EISA translation instead */
+        Status = HalTranslateBusAddress(Eisa,
+                                        BusHandler->BusNumber,
+                                        BusAddress,
+                                        AddressSpace,
+                                        TranslatedAddress);
+    }
+    
+    /* Return the result */
+    return Status;
 }
 
 /* EOF */