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OLIMEX / DIY-LAPTOP

Do It Yourself Open Source Hardware and Software Modular Hacker's Friendly Laptop
Apache License 2.0
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Add an ability to poweron/wake up the system #58

Closed Kreyren closed 2 months ago

Kreyren commented 1 year ago

Currently i always have to get up and turn the system on or open the lid when i want to access it remotely -> Proposing to implement some way to power it on/wake up to manage this scenario

The RTL8723BS has a WLAN to wake-up HOST on pin 13 which is connected to A64's WL-WAKE-AP E13 pin, but i have no idea how to use it and neither does the sunxi community

Alternative approach: PiKVM-like implementation that can access the system remotely? https://invidious.esmailelbob.xyz/watch?v=BpKcqLcApTQ

CC @TsvetanUsunov halp

haraldg commented 1 year ago

Isn't that something that needs to be handled in the driver for RTL8723BS?

Kreyren commented 1 year ago

Isn't that something that needs to be handled in the driver for RTL8723BS? -- @haraldg

Apparently so but i wasn't able to get it to work so far thus why am i annoying tsvetan :D

haraldg commented 1 year ago

I think there are basically 3 possible reasons why it doesn't work:

  1. The RTL8723BS driver doesn't actually support this yet.
  2. The driver would work, but the chip gets powered down too far and can not properly process it.
  3. The WL-WAKE-AP E13 pin actually gets triggered but the system fails to wake up.

(1) is clearly a driver problem and can only be addressed there. (2) might be a problem with the HW design or the devicetree file. (3) might be a problem with the devicetree file or some sunxi specific code. It might also need some support from https://github.com/crust-firmware/crust to get this to work.

Obviously the first step forward is to figure out, which of the above it is.