Vladimir Serbinenko (phcoder@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/6731
-gerrit
commit 457c770aec1aa7e4d881a8cf3c44c4550aa99680 Author: Vladimir Serbinenko phcoder@gmail.com Date: Fri Aug 22 01:55:50 2014 +0200
i945: Backlight
Change-Id: If02b11e91cc0f04bc5f2b24f46398b263ad59315 Signed-off-by: Vladimir Serbinenko phcoder@gmail.com --- src/mainboard/apple/macbook21/acpi/video.asl | 53 -------------- src/mainboard/apple/macbook21/devicetree.cb | 1 - src/mainboard/apple/macbook21/dsdt.asl | 3 +- src/mainboard/lenovo/x60/acpi/video.asl | 55 -------------- src/mainboard/lenovo/x60/devicetree.cb | 1 - src/mainboard/lenovo/x60/dsdt.asl | 5 +- src/northbridge/intel/i945/acpi/igd.asl | 106 +++++++++++++++++++++++++++ src/northbridge/intel/i945/chip.h | 1 - src/northbridge/intel/i945/gma.c | 2 +- 9 files changed, 112 insertions(+), 115 deletions(-)
diff --git a/src/mainboard/apple/macbook21/acpi/video.asl b/src/mainboard/apple/macbook21/acpi/video.asl deleted file mode 100644 index 50a0947..0000000 --- a/src/mainboard/apple/macbook21/acpi/video.asl +++ /dev/null @@ -1,53 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (c) 2011 Sven Schnelle svens@stackframe.org - * - * 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 - */ - -#include "smi.h" - -Device (DSPC) -{ - Name (_ADR, 0x00020001) - OperationRegion (DSPC, PCI_Config, 0x00, 0x100) - Field (DSPC, ByteAcc, NoLock, Preserve) - { - Offset (0xf4), - BRTC, 8 - } - - Method(BRTD, 0, NotSerialized) - { - Store(BRTC, Local0) - if (LGreater (Local0, 15)) - { - Subtract(Local0, 16, Local0) - Store(Local0, BRTC) - } - } - - Method(BRTU, 0, NotSerialized) - { - Store (BRTC, Local0) - if (LLess(Local0, 0xff)) - { - Add (Local0, 16, Local0) - Store(Local0, BRTC) - } - } -} diff --git a/src/mainboard/apple/macbook21/devicetree.cb b/src/mainboard/apple/macbook21/devicetree.cb index a3dfe3a..41acd1a 100644 --- a/src/mainboard/apple/macbook21/devicetree.cb +++ b/src/mainboard/apple/macbook21/devicetree.cb @@ -25,7 +25,6 @@ chip northbridge/intel/i945 register "gpu_hotplug" = "0x00000220" register "gpu_lvds_use_spread_spectrum_clock" = "1" register "gpu_lvds_is_dual_channel" = "0" - register "gpu_backlight" = "0x1280128"
device cpu_cluster 0 on chip cpu/intel/socket_mFCPGA478 diff --git a/src/mainboard/apple/macbook21/dsdt.asl b/src/mainboard/apple/macbook21/dsdt.asl index 5ba7b09..99ce0d5 100644 --- a/src/mainboard/apple/macbook21/dsdt.asl +++ b/src/mainboard/apple/macbook21/dsdt.asl @@ -22,6 +22,7 @@ #define BRIGHTNESS_UP \DSPC.BRTU #define BRIGHTNESS_DOWN \DSPC.BRTD #define ACPI_VIDEO_DEVICE _SB.PCI0.GFX0 +#define HAVE_LCD_SCREEN 1
DefinitionBlock( "dsdt.aml", @@ -29,7 +30,7 @@ DefinitionBlock( 0x03, // DSDT revision: ACPI v3.0 "COREv4", // OEM id "COREBOOT", // OEM table id - 0x20090419 // OEM revision + 0x20090426 // OEM revision ) { // Some generic macros diff --git a/src/mainboard/lenovo/x60/acpi/video.asl b/src/mainboard/lenovo/x60/acpi/video.asl deleted file mode 100644 index b38d82b..0000000 --- a/src/mainboard/lenovo/x60/acpi/video.asl +++ /dev/null @@ -1,55 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (c) 2011 Sven Schnelle svens@stackframe.org - * - * 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 - */ - -#include "smi.h" - -Device (DSPC) -{ - Name (_ADR, 0x00020001) - OperationRegion (DSPC, PCI_Config, 0x00, 0x100) - Field (DSPC, ByteAcc, NoLock, Preserve) - { - Offset (0xf4), - BRTC, 8 - } - - Method(BRTD, 0, NotSerialized) - { - Store(BRTC, Local0) - if (LGreater (Local0, 15)) - { - Subtract(Local0, 16, Local0) - Store(Local0, BRTC) - Trap(SMI_SAVE_CMOS) - } - } - - Method(BRTU, 0, NotSerialized) - { - Store (BRTC, Local0) - if (LLess(Local0, 0xff)) - { - Add (Local0, 16, Local0) - Store(Local0, BRTC) - Trap(SMI_SAVE_CMOS) - } - } -} diff --git a/src/mainboard/lenovo/x60/devicetree.cb b/src/mainboard/lenovo/x60/devicetree.cb index fcf7c29..518daf8 100644 --- a/src/mainboard/lenovo/x60/devicetree.cb +++ b/src/mainboard/lenovo/x60/devicetree.cb @@ -25,7 +25,6 @@ chip northbridge/intel/i945 register "gpu_hotplug" = "0x00000220" register "gpu_lvds_use_spread_spectrum_clock" = "1" register "gpu_lvds_is_dual_channel" = "0" - register "gpu_backlight" = "0x1280128"
device cpu_cluster 0 on chip cpu/intel/socket_mFCPGA478 diff --git a/src/mainboard/lenovo/x60/dsdt.asl b/src/mainboard/lenovo/x60/dsdt.asl index 4122917..6ed92e0 100644 --- a/src/mainboard/lenovo/x60/dsdt.asl +++ b/src/mainboard/lenovo/x60/dsdt.asl @@ -20,9 +20,10 @@ */
#define THINKPAD_EC_GPE 28 -#define BRIGHTNESS_UP \DSPC.BRTU -#define BRIGHTNESS_DOWN \DSPC.BRTD +#define BRIGHTNESS_UP _SB.PCI0.GFX0.LCD0.INCB +#define BRIGHTNESS_DOWN _SB.PCI0.GFX0.LCD0.DECB #define ACPI_VIDEO_DEVICE _SB.PCI0.GFX0 +#define HAVE_LCD_SCREEN 1
DefinitionBlock( "dsdt.aml", diff --git a/src/northbridge/intel/i945/acpi/igd.asl b/src/northbridge/intel/i945/acpi/igd.asl index 9399554..3fca3b8 100644 --- a/src/northbridge/intel/i945/acpi/igd.asl +++ b/src/northbridge/intel/i945/acpi/igd.asl @@ -23,6 +23,22 @@ Device (GFX0) { Name (_ADR, 0x00020000)
+ OperationRegion (GFXC, PCI_Config, 0x00, 0x0100) + Field (GFXC, DWordAcc, NoLock, Preserve) + { + Offset (0x10), + BAR0, 32 + } + + OperationRegion (GFRG, SystemMemory, And (BAR0, 0xfffffff0), 0x400000) + Field (GFRG, DWordAcc, NoLock, Preserve) + { + Offset (0x61250), + CR1, 32, + BCLV, 16, + BCLM, 16, + } + /* Display Output Switching */ Method (_DOS, 1) { @@ -320,4 +336,94 @@ Device (GFX0) } }
+#ifdef HAVE_LCD_SCREEN + Device (LCD0) + { + Name (_ADR, 0x0400) + Name (BRCT, 0) + + Name (BRIG, Package (0x12) + { + 0x61, + 0x61, + 0xd + 0x13 + 0x19 + 0x1f + 0x23 + 0x29 + 0x2f + 0x35 + 0x39 + 0x3f + 0x45 + 0x4b + 0x4f + 0x55 + 0x5b + 0x61 + }) + + Method (_BCL, 0, NotSerialized) + { + Store (1, BRCT) + Return (BRIG) + } + + Method (_BCM, 1, NotSerialized) + { + Store (ShiftLeft (Arg0, 4), ^^BCLV) + Store (0x80000000, ^^CR1) + Store (ShiftLeft (0x61, 4), ^^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))) + } + } + } +#endif } diff --git a/src/northbridge/intel/i945/chip.h b/src/northbridge/intel/i945/chip.h index 9e25ecc..b0b45ca 100644 --- a/src/northbridge/intel/i945/chip.h +++ b/src/northbridge/intel/i945/chip.h @@ -1,6 +1,5 @@ struct northbridge_intel_i945_config { u32 gpu_hotplug; - u32 gpu_backlight; int gpu_lvds_use_spread_spectrum_clock; int gpu_lvds_is_dual_channel; }; diff --git a/src/northbridge/intel/i945/gma.c b/src/northbridge/intel/i945/gma.c index 9b0dbd2..c8e758f 100644 --- a/src/northbridge/intel/i945/gma.c +++ b/src/northbridge/intel/i945/gma.c @@ -308,7 +308,7 @@ static int intel_gma_init(struct northbridge_intel_i945_config *conf, write32(pmmio + FW_BLC, 0x011d0109); write32(pmmio + FW_BLC2, 0x00000102); write32(pmmio + FW_BLC_SELF, FW_BLC_SELF_EN_MASK); - write32(pmmio + BLC_PWM_CTL, conf->gpu_backlight); + write32(pmmio + BLC_PWM_CTL, 0x6100610);
edid.bytes_per_line = (edid.bytes_per_line + 63) & ~63; write32(pmmio + DSPADDR(0), 0);