1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/* 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 })
}
}
|
