| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (c) 2011 Sven Schnelle <svens@stackframe.org> |
| * Copyright (c) 2013 Vladimir Serbinenko |
| * |
| * 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., 51 Franklin St, Fifth Floor, Boston, |
| * MA 02110-1301 USA |
| */ |
| |
| Scope (\_SB.PCI0.GFX0) |
| { |
| Device (LCD0) |
| { |
| Name (_ADR, 0x0400) |
| Name (BRCT, 0) |
| |
| Name (BRIG, Package (0x12) |
| { |
| 0x61, |
| 0x61, |
| 0x2, |
| 0x4, |
| 0x5, |
| 0x7, |
| 0x9, |
| 0xb, |
| 0xd, |
| 0x11, |
| 0x14, |
| 0x17, |
| 0x1c, |
| 0x20, |
| 0x27, |
| 0x31, |
| 0x41, |
| 0x61, |
| }) |
| |
| Method (_BCL, 0, NotSerialized) |
| { |
| Store (1, BRCT) |
| Return (BRIG) |
| } |
| |
| Method (_BCM, 1, NotSerialized) |
| { |
| Store (ShiftLeft (Arg0, 4), ^^BCLV) |
| Store (0x80000000, ^^CR1) |
| Store (0x0610, ^^BCLM) |
| } |
| Method (_BQC, 0, NotSerialized) |
| { |
| Store (^^BCLV, Local0) |
| ShiftRight (Local0, 4, Local0) |
| Return (Local0) |
| } |
| |
| Method(BRID, 1, NotSerialized) |
| { |
| Store (Match (BRIG, MEQ, Arg0, MTR, Zero, 2), Local0) |
| If (LEqual (Local0, Ones)) |
| { |
| Return (0x11) |
| } |
| Return (Local0) |
| } |
| |
| /* 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 (_BQC ()), Local0) |
| If (LNotEqual (Local0, 2)) |
| { |
| Decrement (Local0) |
| } |
| _BCM (DerefOf (Index (BRIG, Local0))) |
| } |
| } |
| Method (INCB, 0, NotSerialized) |
| { |
| If (BRCT) |
| { |
| Notify (LCD0, 0x86) |
| } Else { |
| Store (BRID (_BQC ()), Local0) |
| If (LNotEqual (Local0, 0x11)) |
| { |
| Increment (Local0) |
| } |
| _BCM (DerefOf (Index (BRIG, Local0))) |
| } |
| } |
| } |
| } |