gma: Consolidate Intel IGD ACPI code some more

Consolidate some common (and mostly broken) code. Will try to fix things
in separate commits.

Maybe, igd.asl taken from gm45 (the non-PCH case) could also be used for
i945 and sch. But this needs further investigation.

Change-Id: Id3663bf588458e1e71920b96a3149f96947921e9
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/11702
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
Tested-by: build bot (Jenkins)

3 files changed, 267 insertions, 0 deletions

diff --git a/src/drivers/intel/gma/acpi/common.asl b/src/drivers/intel/gma/acpi/common.asl
new file mode 100644
index 0000000000..88cc2cdd45
--- /dev/null
+++ b/src/drivers/intel/gma/acpi/common.asl
@@ -0,0 +1,112 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+	External(LCD0, DeviceObj)
+
+	Name (BRCT, 0)
+
+	Method(BRID, 1, NotSerialized)
+	{
+		Store (Match (BRIG, MEQ, Arg0, MTR, Zero, 2), Local0)
+		If (LEqual (Local0, Ones))
+		{
+			Return (Subtract(SizeOf(BRIG), One))
+		}
+		Return (Local0)
+	}
+
+	Method (XBCL, 0, NotSerialized)
+	{
+		Store (1, BRCT)
+		Return (BRIG)
+	}
+
+	/* Display Output Switching */
+	Method (_DOS, 1)
+	{
+		/* Windows 2000 and Windows XP call _DOS to enable/disable
+		 * Display Output Switching during init and while a switch
+		 * is already active
+		 */
+		Store (And(Arg0, 7), DSEN)
+	}
+
+	/* Using Notify is the right way. But Windows doesn't handle
+	   it well. So use both method in a way to avoid double action.
+	 */
+	Method (DECB, 0, NotSerialized)
+	{
+		If (BRCT)
+		{
+			Notify (LCD0, 0x87)
+		} Else {
+			Store (BRID (XBQC ()), Local0)
+			If (LNotEqual (Local0, 2))
+			{
+				Decrement (Local0)
+			}
+			XBCM (DerefOf (Index (BRIG, Local0)))
+		}
+	}
+
+	Method (INCB, 0, NotSerialized)
+	{
+		If (BRCT)
+		{
+			Notify (LCD0, 0x86)
+		} Else {
+			Store (BRID (XBQC ()), Local0)
+			If (LNotEqual (Local0, Subtract(SizeOf(BRIG), One)))
+			{
+				Increment (Local0)
+			}
+			XBCM (DerefOf (Index (BRIG, Local0)))
+		}
+	}
+
+	/* Device Current Status */
+	Method(XDCS, 1)
+	{
+		TRAP(1)
+		If (And(CSTE, ShiftLeft (1, Arg0))) {
+			Return (0x1f)
+		}
+		Return(0x1d)
+	}
+
+	/* Query Device Graphics State */
+	Method(XDGS, 1)
+	{
+		If (And(NSTE, ShiftLeft (1, Arg0))) {
+			Return(1)
+		}
+		Return(0)
+	}
+
+	/* Device Set State */
+	Method(XDSS, 2)
+	{
+		/* If Parameter Arg0 is (1 << 31) | (1 << 30), the
+		 * display switch was completed
+		 */
+		If (LEqual(And(Arg0, 0xc0000000), 0xc0000000)) {
+			Store (NSTE, CSTE)
+		}
+	}
diff --git a/src/drivers/intel/gma/acpi/non-pch.asl b/src/drivers/intel/gma/acpi/non-pch.asl
new file mode 100644
index 0000000000..4c9e1eda3d
--- /dev/null
+++ b/src/drivers/intel/gma/acpi/non-pch.asl
@@ -0,0 +1,77 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+Device (GFX0)
+{
+	Name (_ADR, 0x00020000)
+
+	OperationRegion (GFXC, PCI_Config, 0x00, 0x0100)
+	Field (GFXC, DWordAcc, NoLock, Preserve)
+	{
+		Offset (0x10),
+		BAR0, 64
+	}
+
+	OperationRegion (GFRG, SystemMemory, And(BAR0, 0xfffffffffffffff0), 0x400000)
+	Field (GFRG, DWordAcc, NoLock, Preserve)
+	{
+		Offset (0x61250),
+			CR1, 32,
+			BCLV, 16,
+			BCLM, 16,
+	}
+
+	Name (BRIG, Package (0x12)
+	{
+		0x61,
+		0x61,
+		0x2,
+		0x4,
+		0x5,
+		0x7,
+		0x9,
+		0xb,
+		0xd,
+		0x11,
+		0x14,
+		0x17,
+		0x1c,
+		0x20,
+		0x27,
+		0x31,
+		0x41,
+		0x61,
+	})
+
+	Method (XBCM, 1, NotSerialized)
+	{
+		Store (ShiftLeft (Arg0, 4), BCLV)
+		Store (0x80000000, CR1)
+		Store (0x0610, BCLM)
+	}
+
+	Method (XBQC, 0, NotSerialized)
+	{
+		Store (BCLV, Local0)
+		ShiftRight (Local0, 4, Local0)
+		Return (Local0)
+	}
+#include "common.asl"
+}
diff --git a/src/drivers/intel/gma/acpi/pch.asl b/src/drivers/intel/gma/acpi/pch.asl
new file mode 100644
index 0000000000..70ab6f6182
--- /dev/null
+++ b/src/drivers/intel/gma/acpi/pch.asl
@@ -0,0 +1,78 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+Device (GFX0)
+{
+	Name (_ADR, 0x00020000)
+
+	OperationRegion (GFXC, PCI_Config, 0x00, 0x0100)
+	Field (GFXC, DWordAcc, NoLock, Preserve)
+	{
+		Offset (0x10),
+			BAR0, 64
+	}
+
+	OperationRegion (GFRG, SystemMemory, And (BAR0, 0xfffffffffffffff0), 0x400000)
+	Field (GFRG, DWordAcc, NoLock, Preserve)
+	{
+		Offset (0x48254),
+			BCLV, 16,
+		Offset (0xc8250),
+			CR1, 32,
+			CR2, 32
+	}
+
+	Name (BRIG, Package (0x12)
+	{
+		0x61,
+		0x61,
+		0x2,
+		0x4,
+		0x5,
+		0x7,
+		0x9,
+		0xb,
+		0xd,
+		0x11,
+		0x14,
+		0x17,
+		0x1c,
+		0x20,
+		0x27,
+		0x31,
+		0x41,
+		0x61,
+	})
+
+	Method (XBCM, 1, NotSerialized)
+	{
+		Store (ShiftLeft (Arg0, 4), BCLV)
+		Store (0x80000000, CR1)
+		Store (0x061a061a, CR2)
+	}
+
+	Method (XBQC, 0, NotSerialized)
+	{
+		Store (BCLV, Local0)
+		ShiftRight (Local0, 4, Local0)
+		Return (Local0)
+	}
+#include "common.asl"
+}