OC-Little: ACPI Hotpatch Samples for OpenCore

Description

A compendium of ACPI Hotpatches and Binary Renames for use with the OpenCore Bootloader.

DISCLAIMER: This is my english translation of the OC-Little Repo by daliansky. All credits go to her/him/them.I just added some bits in pieces here and there edited and restructured it to be more readable and more uniform in terms of layout. I also reorganized the whole content into categories which make more sense. Work in progress…

Table of Contents

0. Overview

   1. About the ACPI Form
   2. ACPI Source Language
   3. SSDT Loading Sequence
   4. ASL to AML Conversion

1. About AOAC

   1. Prevent S3 sleep
   2. AOAC disable discrete GPU
   3. Power management deep idle
   4. AOAC wake patch
   5. Auto power off bluetooth WIFI while sleep

2. Fake Devices

   1. Fake EC
   2. Fake RTC0
   3. Fake Ambient Light Sensor (ALS0)
   4. Sound Card IRQ Patch (HPET)
   5. Fake Ethernet

3. AWAC & GPIO Fixes

   1. I2C-GPIO Patch
   2. AWAC Patch

4. Windows Compatibility Patch (XOSI)

5. Injecting Devices

   1. CPU Power Management (SSDT-PLUG)
   2. Brightness Control (PNLF)
   3. Inject SMBus (SSDT-SBUS(SMBU)

6. Add Missing Components

• DMAC – DMA Controller
• IMEI – IMEI Device
• MCHC
• MEM2
• PMCR
• PPMC – Platform Power Management Controller
• PWRB – Power Button Device
• SBUS/ SMBU – System Management Bus (see "Injecting Devices")
• SLPB – Sleep Button Device

7. Keyboard Mapping & Brightness Controls (RMCF)

8. Battery Patches

   1. ThinkPad
   2. Other brands
   3. Battery status indicator patch
   4. Example

9. Disabling EHCx

10. PTSWAK Sleep and Wake Fix

11. PNP0C0E Sleep Correction Method

12. 0D6D Instant Wake Fix

    1. General 060D patch
    2. HP 060D patch

13. Fake Ethernet & Reset Ethernet BSD Name

14. CMOS-related Fixes

    1. CMOS memory & RTCMemoryFixup

15. ACPI-based USB Patches

16. Disable PCI Devices and Set ASPM state

    1. Disable PCI Devices
    2. Set ASPM state

17. ACPI Debugging

18. Laptop Patches

    1. Dell patches
    2. XiaoXin PRO13 patches
    3. ThinkPad patches

19. Fixing I2C Device

20. Disabling unspoorted GPUs

Reserved Patches

1. Audio card IRQ patch
2. CMOS reset patch

Common Drivers Loading Sequence Examples

1. config-1-Lilu-SMC-WEG-ALC load lists
2. config-2-PS2 keyboard drives load lists
3. config-3-BCM wireless and bluetooth drives load lists
4. config-4-I2C+PS2 load lists
5. config-5-PS2Smart keyboard devices load lists
6. config-6-Intel wireless and bluetooth drives load lists

Credits

• Special credit to：

  • @XianWu write these ACPI component patches that useable to OpenCore
  • @Bat.bat, @DalianSky, @athlonreg, @iStar丶Forever their proofreading and finalisation.

• Credits and thanks to：

  • @冬瓜-X1C5th
  • @OC-xlivans
  • @Air 13 IWL-GZ-Big Orange (OC perfect)
  • @子骏oc IWL
  • @大勇-小新air13-OC-划水小白
  • @xjn819
  • Acidanthera for maintaining OpenCorePkg