[cgutman] 54371: [HAL] - Fix DMA on the EISA bus - Fix a critical calculation error in map register size resulting in the map register allocation worker not allocating enough map registers for a dy...

Author: cgutman
Date: Sun Nov 13 05:49:33 2011
New Revision: 54371

URL: http://svn.reactos.org/svn/reactos?rev=54371&view=rev
Log:
[HAL]
- Fix DMA on the EISA bus
- Fix a critical calculation error in map register size resulting in the map register
allocation worker not allocating enough map registers for a dynamic resize

Modified:
    trunk/reactos/hal/halx86/generic/dma.c

Modified: trunk/reactos/hal/halx86/generic/dma.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/hal/halx86/generic/dma.c?r…
==============================================================================
--- trunk/reactos/hal/halx86/generic/dma.c [iso-8859-1] (original)
+++ trunk/reactos/hal/halx86/generic/dma.c [iso-8859-1] Sun Nov 13 05:49:33 2011
@@ -614,9 +614,12 @@
      * Also note that we check for channel number since there are only 8 DMA
      * channels on ISA, so any request above this requires new adapter.
      */
-    if ((DeviceDescription->InterfaceType == Isa) || !(DeviceDescription->Master))
-    {
-        if ((DeviceDescription->InterfaceType == Isa) &&
(DeviceDescription->DmaChannel >= 8))
+    if (((DeviceDescription->InterfaceType == Eisa) ||
+         (DeviceDescription->InterfaceType == Isa)) ||
!(DeviceDescription->Master))
+    {
+        if (((DeviceDescription->InterfaceType == Isa) ||
+             (DeviceDescription->InterfaceType == Eisa)) &&
+            (DeviceDescription->DmaChannel >= 8))
         {
             EisaAdapter = FALSE;
         }
@@ -1208,7 +1211,7 @@
      */
     KeWaitForSingleObject(&HalpDmaLock, Executive, KernelMode, FALSE, NULL);
     Succeeded = HalpGrowMapBuffers(WorkItem->AdapterObject->MasterAdapter,
-                                   WorkItem->NumberOfMapRegisters);
+                                   WorkItem->NumberOfMapRegisters <<
PAGE_SHIFT);
     KeSetEvent(&HalpDmaLock, 0, 0);
 
     if (Succeeded)