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author | Duncan Laurie <dlaurie@chromium.org> | 2015-11-21 18:40:19 -0800 |
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committer | Patrick Georgi <pgeorgi@google.com> | 2015-12-03 14:22:23 +0100 |
commit | 8996084f82119564362b1f9cb28fcbb7d74b3188 (patch) | |
tree | 0402f7c67e4b2afc321af841d7925ffcda7d65b5 /src/soc/intel/skylake/acpi/pch_hda.asl | |
parent | 21cc96cacd2a2a760524a35298f25dbc59c30072 (diff) | |
download | coreboot-8996084f82119564362b1f9cb28fcbb7d74b3188.tar.xz |
intel/skylake: Add ACPI device for audio controller
Add the audio controller device to ACPI and define the _DSM handler
to return the address of the NHLT table, if it has been set in NVS.
BUG=chrome-os-partner:47346
BRANCH=none
TEST=build and boot on glados and chell
Change-Id: I8dc186a8bb79407b69ef32fb224a7c0f85c05bc4
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 6b73fba375f83f175d0b73e5e70a058a6c259e0d
Original-Change-Id: Ia9bedbae198e53fe415adc086a44b8b29b7f611d
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/313824
Original-Commit-Ready: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/12597
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/soc/intel/skylake/acpi/pch_hda.asl')
-rw-r--r-- | src/soc/intel/skylake/acpi/pch_hda.asl | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/acpi/pch_hda.asl b/src/soc/intel/skylake/acpi/pch_hda.asl new file mode 100644 index 0000000000..509e6bfdd9 --- /dev/null +++ b/src/soc/intel/skylake/acpi/pch_hda.asl @@ -0,0 +1,88 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Intel Corporation. + * Copyright (C) 2015 Google Inc. + * + * 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. + */ + +/* Audio Controller - Device 31, Function 3 */ + +Device (HDAS) +{ + Name (_ADR, 0x001F0003) + Name (_DDN, "Audio Controller") + Name (UUID, ToUUID ("A69F886E-6CEB-4594-A41F-7B5DCE24C553")) + + /* Device is D3 wake capable */ + Name (_S0W, 3) + + /* NHLT Table Address populated from GNVS values */ + Name (NBUF, ResourceTemplate () { + QWordMemory (ResourceConsumer, PosDecode, MinFixed, + MaxFixed, NonCacheable, ReadOnly, + 0, 0, 0, 0, 1,,, NHLT, AddressRangeACPI) + }) + + /* + * Device Specific Method + * Arg0 - UUID + * Arg1 - Revision + * Arg2 - Function Index + */ + Method (_DSM, 4) + { + If (LEqual (Arg0, ^UUID)) { + /* + * Function 0: Function Support Query + * Returns a bitmask of functions supported. + */ + If (LEqual (Arg2, Zero)) { + /* + * NHLT Query only supported for revision 1 and + * if NHLT address and length are set in NVS. + */ + If (LAnd (LEqual (Arg1, One), + LAnd (LNotEqual (NHLA, Zero), + LNotEqual (NHLL, Zero)))) { + Return (Buffer (One) { 0x03 }) + } Else { + Return (Buffer (One) { 0x01 }) + } + } + + /* + * Function 1: Query NHLT memory address used by + * Intel Offload Engine Driver to discover any non-HDA + * devices that are supported by the DSP. + * + * Returns a pointer to NHLT table in memory. + */ + If (LEqual (Arg2, One)) { + CreateQWordField (NBUF, ^NHLT._MIN, NBAS) + CreateQWordField (NBUF, ^NHLT._MAX, NMAS) + CreateQWordField (NBUF, ^NHLT._LEN, NLEN) + + Store (NHLA, NBAS) + Store (NHLA, NMAS) + Store (NHLL, NLEN) + + Return (NBUF) + } + } + + Return (Buffer (One) { 0x00 }) + } +} |