acpica-unix2-20130823
PANKOVs restructure

@@ -3,11 +3,11 @@
  * Module Name: exfield - ACPI AML (p-code) execution - field manipulation
  *
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:

@@ -111,23 +111,29 @@
             }
         }
     }
     else if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_REGION_FIELD) &&
              (ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_SMBUS ||
+              ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_GSBUS ||
               ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_IPMI))
     {
         /*
-         * This is an SMBus or IPMI read. We must create a buffer to hold
+         * This is an SMBus, GSBus or IPMI read. We must create a buffer to hold
          * the data and then directly access the region handler.
          *
-         * Note: Smbus protocol value is passed in upper 16-bits of Function
+         * Note: SMBus and GSBus protocol value is passed in upper 16-bits of Function
          */
         if (ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_SMBUS)
         {
             Length = ACPI_SMBUS_BUFFER_SIZE;
             Function = ACPI_READ | (ObjDesc->Field.Attribute << 16);
         }
+        else if (ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_GSBUS)
+        {
+            Length = ACPI_GSBUS_BUFFER_SIZE;
+            Function = ACPI_READ | (ObjDesc->Field.Attribute << 16);
+        }
         else /* IPMI */
         {
             Length = ACPI_IPMI_BUFFER_SIZE;
             Function = ACPI_READ;
         }

@@ -272,27 +278,28 @@
             }
         }
     }
     else if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_REGION_FIELD) &&
              (ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_SMBUS ||
+              ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_GSBUS ||
               ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_IPMI))
     {
         /*
-         * This is an SMBus or IPMI write. We will bypass the entire field
+         * This is an SMBus, GSBus or IPMI write. We will bypass the entire field
          * mechanism and handoff the buffer directly to the handler. For
          * these address spaces, the buffer is bi-directional; on a write,
          * return data is returned in the same buffer.
          *
          * Source must be a buffer of sufficient size:
-         * ACPI_SMBUS_BUFFER_SIZE or ACPI_IPMI_BUFFER_SIZE.
+         * ACPI_SMBUS_BUFFER_SIZE, ACPI_GSBUS_BUFFER_SIZE, or ACPI_IPMI_BUFFER_SIZE.
          *
-         * Note: SMBus protocol type is passed in upper 16-bits of Function
+         * Note: SMBus and GSBus protocol type is passed in upper 16-bits of Function
          */
         if (SourceDesc->Common.Type != ACPI_TYPE_BUFFER)
         {
             ACPI_ERROR ((AE_INFO,
-                "SMBus or IPMI write requires Buffer, found type %s",
+                "SMBus/IPMI/GenericSerialBus write requires Buffer, found type %s",
                 AcpiUtGetObjectTypeName (SourceDesc)));
 
             return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
         }
 

@@ -299,20 +306,25 @@
         if (ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_SMBUS)
         {
             Length = ACPI_SMBUS_BUFFER_SIZE;
             Function = ACPI_WRITE | (ObjDesc->Field.Attribute << 16);
         }
+        else if (ObjDesc->Field.RegionObj->Region.SpaceId == ACPI_ADR_SPACE_GSBUS)
+        {
+            Length = ACPI_GSBUS_BUFFER_SIZE;
+            Function = ACPI_WRITE | (ObjDesc->Field.Attribute << 16);
+        }
         else /* IPMI */
         {
             Length = ACPI_IPMI_BUFFER_SIZE;
             Function = ACPI_WRITE;
         }
 
         if (SourceDesc->Buffer.Length < Length)
         {
             ACPI_ERROR ((AE_INFO,
-                "SMBus or IPMI write requires Buffer of length %u, found length %u",
+                "SMBus/IPMI/GenericSerialBus write requires Buffer of length %u, found length %u",
                 Length, SourceDesc->Buffer.Length));
 
             return_ACPI_STATUS (AE_AML_BUFFER_LIMIT);
         }
 

@@ -346,25 +358,29 @@
     /* Get a pointer to the data to be written */
 
     switch (SourceDesc->Common.Type)
     {
     case ACPI_TYPE_INTEGER:
+
         Buffer = &SourceDesc->Integer.Value;
         Length = sizeof (SourceDesc->Integer.Value);
         break;
 
     case ACPI_TYPE_BUFFER:
+
         Buffer = SourceDesc->Buffer.Pointer;
         Length = SourceDesc->Buffer.Length;
         break;
 
     case ACPI_TYPE_STRING:
+
         Buffer = SourceDesc->String.Pointer;
         Length = SourceDesc->String.Length;
         break;
 
     default:
+
         return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
     }
 
     ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
         "FieldWrite [FROM]: Obj %p (%s:%X), Buf %p, ByteLen %X\n",

@@ -388,7 +404,5 @@
     Status = AcpiExInsertIntoField (ObjDesc, Buffer, Length);
     AcpiExReleaseGlobalLock (ObjDesc->CommonField.FieldFlags);
 
     return_ACPI_STATUS (Status);
 }
-
-