| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| /* 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 (Arg0 == ^UUID) { |
| /* |
| * Function 0: Function Support Query |
| * Returns a bitmask of functions supported. |
| */ |
| If (Arg2 == 0) { |
| /* |
| * NHLT Query only supported for revision 1 and |
| * if NHLT address and length are set in NVS. |
| */ |
| If ((Arg1 == 1) && ((NHLA != 0) && (NHLL != 0))) { |
| Return (Buffer (1) { 0x03 }) |
| } Else { |
| Return (Buffer (1) { 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 (Arg2 == 1) { |
| CreateQWordField (NBUF, ^NHLT._MIN, NBAS) |
| CreateQWordField (NBUF, ^NHLT._MAX, NMAS) |
| CreateQWordField (NBUF, ^NHLT._LEN, NLEN) |
| |
| NBAS = NHLA |
| NMAS = NHLA |
| NLEN = NHLL |
| |
| Return (NBUF) |
| } |
| } |
| |
| Return (Buffer (1) { 0x00 }) |
| } |
| } |