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
134
135
136
137
138
139
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* The mainboard must define strings in the root scope to
* report device-specific battery information to the OS.
*
* BATV: Vendor
*/
// Scope (EC0)
Device (BATX)
{
Name (_HID, EISAID ("PNP0C0A"))
Name (_UID, 1)
Name (_PCL, Package () { \_SB })
Name (PBIF, Package () {
0x00000001, // 0 Power Unit: mAh
0xFFFFFFFF, // 1 Design Capacity
0xFFFFFFFF, // 2 Last Full Charge Capacity
0x00000001, // 3 Battery Technology: Rechargeable
0xFFFFFFFF, // 4 Design Voltage
0x000000FA, // 5 Design Capacity of Warning
0x00000096, // 6 Design Capacity of Low
0x0000000A, // 7 Capacity Granularity 1
0x00000019, // 8 Capacity Granularity 2
"", // 9 Model Number
"", // 10 Serial Number
"", // 11 Battery Type
"" // 12 OEM Information
})
Name (PBST, Package () {
0x00000000, // Battery State
0xFFFFFFFF, // Battery Present Rate
0xFFFFFFFF, // Battery Remaining Capacity
0xFFFFFFFF, // Battery Present Voltage
})
// Workaround for full battery status, enabled by default
Name (BFWK, 1)
// Method to enable full battery workaround
Method (BFWE)
{
BFWK = 1
}
// Method to disable full battery workaround
Method (BFWD)
{
BFWK = 0
}
// Device insertion/removal control method that returns a device's status.
// Power resource object that evaluates to the current on or off state of
// the Power Resource.
Method (_STA, 0, Serialized)
{
If (BTIN) {
Return (0x1F)
} Else {
Return (0x0F)
}
}
Method (_BIF, 0, Serialized)
{
// Update fields from EC
PBIF [1] = BDC0 // Batt Design Capacity
PBIF [2] = BFC0 // Batt Last Full Charge Capacity
PBIF [4] = BDV0 // Batt Design Voltage
Local1 = BFC0 / 100
Local0 = Local1 * 10
PBIF [5] = Local0
Local0 = Local1 * 5
PBIF [6] = Local0
PBIF [9] = ToString(Concatenate(BATD, 0x00)) // Model Number
PBIF [10] = ToDecimalString(BSN0) // Serial Number
PBIF [11] = ToString(Concatenate(BCHM, 0x00)) // Battery Type
PBIF [12] = \BATV // OEM information
Return (PBIF)
}
Method (_BST, 0, Serialized)
{
//
// 0: BATTERY STATE
//
// bit 0 = discharging
// bit 1 = charging
// bit 2 = critical level
//
// Get battery state from EC
Local0 = BST0
PBST [0] = Local0
//
// 1: BATTERY PRESENT RATE/CURRENT
//
Local1 = BPC0
If (Local1 && 0x8000) {
Local1 ^= 0xffff
Local1++
}
PBST [1] = Local1
//
// 2: BATTERY REMAINING CAPACITY
//
Local1 = BRC0
If (BFWK && ADPT && !Local0) {
// On AC power and battery is neither charging
// nor discharging. Linux expects a full battery
// to report same capacity as last full charge.
// https://bugzilla.kernel.org/show_bug.cgi?id=12632
Local2 = BFC0
// See if within ~3% of full
Local3 = Local2 >> 5
If (Local1 > (Local2 - Local3) && Local1 < (Local2 + Local3))
{
Local1 = Local2
}
}
PBST [2] = Local1
//
// 3: BATTERY PRESENT VOLTAGE
//
PBST [3] = BPV0
Return (PBST)
}
}
|