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/* SPDX-License-Identifier: GPL-2.0-only */
/* Audio Controller - Device 14, Function 0 */
Device (HDAS)
{
Name (_ADR, 0x000E0000)
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, Cacheable, ReadOnly,
0, 0, 0, 0, 1,,, NHLT, AddressRangeACPI)
}
)
/* can wake up from S3 state */
Name (_PRW, Package() { GPE0A_AVS_PME_STS, 3 })
/*
* 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 (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 (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 (One) { 0x00 })
}
}
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