src/mainboard/starlabs/lite/acpi/touchpad.asl

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 Scope (\_SB.PCI0.I2C7)
   4 {
   5         Device (H02C)
   6         {
   7                 Name (_HID, "STAR0001")
   8                 Name (_CID, "PNP0C50" /* HID Protocol Device (I2C bus) */)
   9                 Name (_UID, 0x01)
  10                 Name (_DDN, "Touchpad")                                         // _DDN: DOS Device Name
  11                 Name (_DEP, Package (0x02)                                      // _DEP: Dependencies
  12                 {
  13                         GPO3,
  14                         I2C7
  15                 })
  16
  17                 Method (_STA, 0, NotSerialized)
  18                 {
  19                         Return (0x0F)
  20                 }
  21
  22                 Name (_CRS, ResourceTemplate ()
  23                 {
  24                         I2cSerialBusV2 (0x002C, ControllerInitiated, 0x000186A0,
  25                                 AddressingMode7Bit, "\\_SB.PCI0.I2C7",
  26                                 0x00, ResourceConsumer, , Exclusive,)
  27                         GpioInt (Level, ActiveLow, ExclusiveAndWake, PullDefault, 0x0000,
  28                                 "\\_SB.GPO3", 0x00, ResourceConsumer, ,)
  29                                 {
  30                                         CONFIG_TRACKPAD_INTERRUPT
  31                                 }
  32                 })
  33
  34                 Name (_DSD, Package (0x02)                                      // _DSD: Device-Specific Data
  35                 {
  36                         ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301")         /* Device Properties for _DSD */,
  37                         Package (0x01)
  38                         {
  39                                 Package (0x02)
  40                                 {
  41                                         "linux,probed",
  42                                         1
  43                                 }
  44                         }
  45                 })
  46                 Method (_DSM, 4, Serialized)  // _DSM: Device-Specific Method
  47                 {
  48                         ToBuffer (Arg0, Local0)
  49                         If ((Local0 == ToUUID ("3cdff6f7-4267-4555-ad05-b30a3d8938de")  /* HID I2C Device */))
  50                         {
  51                                 ToInteger (Arg2, Local1)
  52                                 If (Local1 == 0x00)
  53                                 {
  54                                         ToInteger (Arg1, Local2)
  55                                         If (Local2 == 0x01)
  56                                         {
  57                                                 Return (Buffer (0x01)
  58                                                 {
  59                                                         0x03
  60                                                 })
  61                                         } Else {
  62                                                 Return (Buffer (0x01)
  63                                                 {
  64                                                         0x00
  65                                                 })
  66                                         }
  67                                 }
  68                                 If ((Local1 == 0x01))
  69                                 {
  70                                         Return (0x20)
  71                                 }
  72                                 Return (Buffer (0x01)
  73                                 {
  74                                         0x00
  75                                 })
  76                         }
  77                         Return (Buffer (0x01)
  78                         {
  79                                 0x00
  80                         })
  81                 }
  82         }
  83 }