summaryrefslogtreecommitdiff
path: root/src/ec/google/wilco/acpi/dptf.asl
blob: 1b2bf80c2e0bd7a4f423f93c3f3089caf69687f2 (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
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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
/* SPDX-License-Identifier: GPL-2.0-only */

/*
 * Dynamic Platform Thermal Framework support
 */

/* Mutex for EC PAT interface */
Mutex (PATM, 1)

/* Read requested temperature sensor */
Method (TSRD, 1, Serialized)
{
	If (Acquire (^PATM, 1000)) {
		Return (0)
	}

	/* Set sensor ID */
	W (DWTI, ToInteger (Arg0))

	Local0 = R (DRTV)

	Release (^PATM)
	Return (\_SB.DPTF.CTOK (Local0))
}

/*
 * Set Aux Trip Point 0
 *   Arg0 = Temp Sensor ID
 *   Arg1 = Value to set
 */
Method (PAT0, 2, Serialized)
{
	If (Acquire (^PATM, 1000)) {
		Return (0)
	}

	/* Set sensor ID */
	W (DWTI, ToInteger (Arg0))

	/* Set LOW trip point for this sensor */
	W (DWTL, \_SB.DPTF.KTOC (Arg1))

	Release (^PATM)
	Return (1)
}

/*
 * Set Aux Trip Point 1
 *   Arg0 = Temp Sensor ID
 *   Arg1 = Value to set
 */
Method (PAT1, 2, Serialized)
{
	If (Acquire (^PATM, 1000)) {
		Return (0)
	}

	/* Set sensor ID */
	W (DWTI, ToInteger (Arg0))

	/* Set HIGH trip point for this sensor */
	W (DWTH, \_SB.DPTF.KTOC (Arg1))

	Release (^PATM)
	Return (1)
}

/*
 * Disable Aux Trip Points
 *   Arg0 = Temp Sensor ID
 */
Method (PATD, 1, Serialized)
{
	If (Acquire (^PATM, 1000)) {
		Return (0)
	}

	/* Set sensor ID */
	W (DWTI, ToInteger (Arg0))

	/* Disable LOW and HIGH trip points */
	W (DWTL, 0xff)
	W (DWTH, 0xff)

	Release (^PATM)
	Return (1)
}

/*
 * Handle sensor trip events
 */
Method (PATX, 0, Serialized)
{
	Local0 = R (DRTQ)
	Local1 = Local0

	Printf ("Sensor trip mask: %o", Local0)

	If (!Acquire (^PATM, 1000)) {

		/* Handle bits that are set */
		While (FindSetRightBit (Local1, Local2))
		{
#ifdef HAVE_THERM_EVENT_HANDLER
			/* DPTF will Notify sensor devices */
			\_SB.DPTF.TEVT (Local2)
#endif

			/* Clear current sensor number */
			Local1 &= ~(1 << (Local2 - 1))
		}

		Release (^PATM)
	}

	/* Clear sensor events */
	W (DWTQ, Local0)
}

#ifdef EC_ENABLE_MULTIPLE_DPTF_PROFILES
/*
 * Read current Device DPTF Profile Number
 */
Method (RCDP, 0, NotSerialized)
{
	Local0 = R(DRTI)
	If (Local0 == 0) {
		Return (R(OTBL))
	} else {
		Return (Local0 - 1)
	}
}
#endif