blob: 9cdfb49c41baf98760735732f1aad209e69ca363 (
plain)
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
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Poll a GPIO until it goes to the specified state
* Arg0 == GPIO #
* Arg1 == state (0 or 1)
* Arg2 == timeout in ms
*/
Method (GPPL, 3, Serialized)
{
Local0 = 0
Local1 = Arg2 * 10
While (Local0 < Local1)
{
If (\_SB.PCI0.GRXS (Arg0) == Arg1) {
Return (0)
} Else {
Local0++
}
Stall (100)
}
If (Local0 == Arg2) {
Printf("[ERROR] GPPL for %o timed out", Arg0)
}
Return (0xFF)
}
/* Convert from 32-bit integer to 4-byte buffer (little-endian) */
Method (ITOB, 1)
{
Local0 = Buffer(4) { 0, 0, 0, 0 }
Local0[0] = Arg0 & 0xFF
Local0[1] = (Arg0 >> 8) & 0xFF
Local0[2] = (Arg0 >> 16) & 0xFF
Local0[3] = (Arg0 >> 24) & 0xFF
Return (Local0)
}
|
