summaryrefslogtreecommitdiff
path: root/src/mainboard/google/rambi/acpi/trackpad_elan.asl
blob: acd423771a1a2c857b5b66365fa066c8c695a31d (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
/* SPDX-License-Identifier: GPL-2.0-only */

#include <variant/onboard.h>

Scope (\_SB.PCI0.I2C1)
{
	Device (ETPA)
	{
		Name (_HID, "ELAN0000")
		Name (_DDN, "Elan Touchpad")
		Name (_UID, 3)
		Name (ISTP, 1) /* Touchpad */

		Name (_CRS, ResourceTemplate()
		{
			I2cSerialBus (
				BOARD_TRACKPAD_I2C_ADDR,	// SlaveAddress
				ControllerInitiated,		// SlaveMode
				400000,				// ConnectionSpeed
				AddressingMode7Bit,		// AddressingMode
				"\\_SB.PCI0.I2C1",		// ResourceSource
			)
			Interrupt (ResourceConsumer, Level, ActiveLow)
			{
				BOARD_TRACKPAD_IRQ
			}
		})

		Method (_STA)
		{
			If (LEqual (\S1EN, 1)) {
				Return (0xF)
			} Else {
				Return (0x0)
			}
		}

		/* Allow device to power off in S0 */
		Name (_S0W, 4)
	}
}