GFX low power state implementation #1
Conversation
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Have you taken a look at the recent changes to the whole gfx driver code? A lot has changed. This seems to be based on an old commit. I'm pretty sure the old gfx sleep/awake code is quite broken. I'm not sure how i feel about the changes in this pull request. The reason i didn't implement proper sleep mode yet is because it's a little more complicated with the whole PDN reg poking & CPU wait for interrupt state and i wanted to give the main app code full control of how sleep works. This hardcodes it in the gfx driver. |
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Thanks so much for the input and no worries, I didn't expect this changes to go through at all, as there's too many mix of concerns. When I started I didn't check the master branch as I thought open agb uses master already. I'll rework the changes on top of master and probably take more care into using KEvent this time. By the way, if you have any resources I can follow that'd be sweet. I have no experience reversing 3ds. I've been only following 3dbrew and nesdev. Any guides how I can contribute with figuring out the register poking logic? |
base commit: 8f88216
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This is changes tries to conserve power by turning off VRAM and GPU.
Coming from open_agb_firm, when I started work on this I wasn't aware that there's GFX_sleep and GFX_sleepAwake.
Now I am really new into both of these projects, and my motivation is simply to make sleep works when the lid is closed. I'm aware that currently the code is not exactly in a pretty state and there's a mix of concern, I'll try to refine this more, but I could appreciate any feedbacks.