Merge branch 'master' of https://github.com/Xiashangning/BigSurface

README.md

@@ -4,11 +4,11 @@ Big Sur + Surface -> Big Surface (LOL)
 
 PS : If you have a better name, please let me know.
 
-**A proposition for a fully intergrated kext for all Surface Pro related hardwares**
+**A proposition for a fully intergrated kext for all Surface related hardwares**
 
 ## How to install
 
-You will need to add the kext into opencore's `config.plist` in the order specified as below
+You will need to first DELETE all the original VoodooI2C series Kext, and then add the kext into opencore's `config.plist` in the order specified as below
 <img width="407" alt="截屏2021-06-29 下午8 26 08" src="https://user-images.githubusercontent.com/18528518/123798086-6feaca00-d919-11eb-9e87-2fb3d6268cfe.png">
 
 ## TODO
@@ -17,26 +17,20 @@ You will need to add the kext into opencore's `config.plist` in the order specif
   > The code is based on VoodooI2CHID.kext, but added **integrated and hot pluggable touchpad&keyboard support**.
 - Battery status--Surface Serial Hub            **Most Important**
   > See https://github.com/linux-surface/surface-aggregator-module.
-  > To obtain the battery readout, one needs to register the operation handler for _SAN device(called via _SAN.RQST) and send the request to SSH device.
-  > SSH is a UART controller, **the low level uart operation(tx, rx)** is needed to be completed. Thus an expert in UART development is needed.
-  > Other than that, the rest of the code is not hard to port, mainly how to encode and decode the request packages. 
-  >
-  > The Surface Laptop and Surface Book things can be deleted.
 - Performance mode
-
   > Depends on Surface Serial Hub driver
-- Buttons
+- Buttons                            **Done**
 
-  > WIP
-- Ambient Light Sensor
+  > Problem remains to be solved: Power Button fails after wake from sleep (with deep idle enabled). Might need to investigate into Linux code to see if there are resetting codes when wakeup
+- Ambient Light Sensor                            **Done**
   > ACPI device name: ACSD, attached under I2C4
-  > The Linux source code is attached in the folder, just one source file, should be 'easy' to port.(Maybe we don't need gesture and proximity)
-  > Driver should attach to VoodooI2CDeviceNub and use it to perform I2C IO.
-  > See VoodooI2CSynaptics for code reference.
-- Cameras
+  > 
+  > Problem remains to be solved: Only works after a hot reboot from Windows, otherwise its readout are around 0-3 (in normal situation: 200-300 in room)
+- Cameras                            Impossible so far
   > ACPI devices: CAMR,CAMF,CAM3(infrared camera)
+  > 
   > Corresponding device id: OV8865,OV5693,OV7251
-  > Not so important, they use I2C to transfert data. Linux code available.
+  > 
+  > Even Linux failed to drive the cameras on SP7 (IPU4), SP6 and before (IPU3) might be possible but I do not have the device.
 - Touch Screen
   > Device id: 0x34E4
-  > Linux uses `mei` to communicate with the touch screen(ipts), don't know the equivalant thing on macOS nor how to communicate with it.