[SeaBIOS] [PATCH 11/11] [RfC] acpi: rework enable bits

[Gerd Hoffmann]

Attempt to make the _SB.PCI.ISA.${device}._STA methods chipset
independant, by make them simply call (chipset-specific) methods
to figure whenever the device is enabled or not.

Signed-off-by: Gerd Hoffmann 
---
 src/acpi-dsdt.dsl |   95 +++++++++++++++++++++++++++++-----------------------
 1 files changed, 53 insertions(+), 42 deletions(-)

diff --git a/src/acpi-dsdt.dsl b/src/acpi-dsdt.dsl
index 6912fac..e267b01 100644
--- a/src/acpi-dsdt.dsl
+++ b/src/acpi-dsdt.dsl
@@ -232,7 +232,7 @@ DefinitionBlock (
            Name (_HID, EisaId ("PNP0700"))
    	Method (_STA, 0, NotSerialized)
    	{
-		    Return (0x0F)
+                    Return (_SB.PCI0.ENAB.FDC0())
    	}
    	Method (_CRS, 0, NotSerialized)
    	{
@@ -253,16 +253,7 @@ DefinitionBlock (
            Name (_HID, EisaId ("PNP0400"))
    	Method (_STA, 0, NotSerialized)
    	{
-		    Store (_SB.PCI0.PX13.DRSA, Local0)
-		    And (Local0, 0x80000000, Local0)
-		    If (LEqual (Local0, 0))
-		    {
-			Return (0x00)
-		    }
-		    Else
-		    {
-			Return (0x0F)
-		    }
+                    Return (_SB.PCI0.ENAB.LPT())
    	}
    	Method (_CRS, 0, NotSerialized)
    	{
@@ -282,16 +273,7 @@ DefinitionBlock (
    	Name (_UID, 0x01)
    	Method (_STA, 0, NotSerialized)
    	{
-		    Store (_SB.PCI0.PX13.DRSC, Local0)
-		    And (Local0, 0x08000000, Local0)
-		    If (LEqual (Local0, 0))
-		    {
-			Return (0x00)
-		    }
-		    Else
-		    {
-			Return (0x0F)
-		    }
+                    Return (_SB.PCI0.ENAB.COM1())
    	}
    	Method (_CRS, 0, NotSerialized)
    	{
@@ -310,16 +292,7 @@ DefinitionBlock (
    	Name (_UID, 0x02)
    	Method (_STA, 0, NotSerialized)
    	{
-		    Store (_SB.PCI0.PX13.DRSC, Local0)
-		    And (Local0, 0x80000000, Local0)
-		    If (LEqual (Local0, 0))
-		    {
-			Return (0x00)
-		    }
-		    Else
-		    {
-			Return (0x0F)
-		    }
+                    Return (_SB.PCI0.ENAB.COM2())
    	}
    	Method (_CRS, 0, NotSerialized)
    	{
@@ -342,20 +315,58 @@ DefinitionBlock (
         Device (PX13) {
        Name (_ADR, 0x00010003)

-	    OperationRegion (P13C, PCI_Config, 0x5c, 0x24)
-	    Field (P13C, DWordAcc, NoLock, Preserve)
+	    OperationRegion (P13C, PCI_Config, 0x00, 0xff)
+	    Field (P13C, AnyAcc, NoLock, Preserve)
        {
-		DRSA, 32,
-		DRSB, 32,
-		DRSC, 32,
-		DRSE, 32,
-		DRSF, 32,
-		DRSG, 32,
-		DRSH, 32,
-		DRSI, 32,
-		DRSJ, 32
+                Offset(0x5f),
+		, 7,
+	        LPEN, 1,         // LPT
+                Offset(0x67),
+		, 3,
+		CAEN, 1,         // COM1
+		, 3,
+		CBEN, 1,         // COM2
        }
    }
+        Device (ENAB) {
+	    Method (FDC0, 0, NotSerialized)
+            {
+		Return (0x0F)
+            }
+	    Method (LPT, 0, NotSerialized)
+            {
+	        If (LEqual (_SB.PCI0.PX13.LPEN, 0))
+		{
+		    Return (0x00)
+		}
+		Else
+		{
+		    Return (0x0F)
+		}
+            }
+	    Method (COM1, 0, NotSerialized)
+            {
+	        If (LEqual (_SB.PCI0.PX13.CAEN, 0))
+		{
+		    Return (0x00)
+		}
+		Else
+		{
+		    Return (0x0F)
+		}
+            }
+	    Method (COM2, 0, NotSerialized)
+            {
+	        If (LEqual (_SB.PCI0.PX13.CBEN, 0))
+		{
+		    Return (0x00)
+		}
+		Else
+		{
+		    Return (0x0F)
+		}
+            }
+	}
     }