sargo-temp

Temporary fixes that make Mobian work on sargo.

Please note that the MIT license does not apply to qcom-firmware.

What to do

Build Image

Instructions can be found in IMAGE.md in this repo.

Flash image

First flash the image. Boot the phone.

Connect via SSH: ssh mobian@10.66.0.1

Accept the host key.

Note: If you built the image with a different username, you will have to set that in ansible/ansible.cfg.

Roll out workarounds using Ansible

You have to have ansible-playbook installed.

Go to the Ansible folder: cd ansible

Roll out workarounds: ./workarounds.sh

Reboot phone via SSH.

Connect to wifi.

Rolling out the workarounds for audio requires installing packages from the repo, so we need an internet connection.

Roll out audio workarounds: ./audio.sh

Note:

• You might have to switch SIM slots if your SIM card is not recognised.
  • Command: mmcli -m 0 --set-primary-sim-slot=1, options are 1 or 2
  • Note that this reboots the modem, therefore it will be -m 1 and then the next time -m 2 until you reboot and this makes it go back to -m 0.

Project Status

To Do List

• Make installer images work on this device
• Have droid-juicer run on installer images
• Make sure my q6voiced package no longer includes a hard-coded config for this device
• Create an ITP for tinyalsa and q6voiced and get both into the repos (use the workarounds from this repo to get working call audio for now)
• Combine SDM670 kernel patches with those in the Mobian qcom kernel
  • Patches are already being upstreamed by the sdm670-linux project, maybe that's already done before I start working on it xD

Issues To Solve To Get Official Mobian Images

• Remove hard-coded value in the droid-juicer systemd unit (done, but not yet in repos)
  • https://gitlab.com/mobian1/droid-juicer/-/issues/4
• Combining SDM670 kernel patches with the Mobian qcom kernel (To Do List entry above, help wanted)

Done:

• New release of qcom-phone-utils required so that my patches are available from the repo
  • 4f77281197 (firmware folders)
  • 9aa29a1d0b (fixes bootimg generation with LUKS)
  • 3ddb192b5c (fixes on-screen keyboard for LUKS passphrase)

For those I will remove the workarounds once the changes are in the Mobian repo

Misc Issues

• ALSA config for the device has not been upstreamed yet (can be added using the Playbook in this repo)

(This is a non-exhaustive list)

Low Priority

• add udev rule for the vibration motor to the right package
• fix udev rule for the Bluetooth workaround in this repo
• create/find script/tool that brings up Bluetooth & then package it
  • for now this repo contains a simple script specific to this device and a udev rule, but something is wrong with the udev rule. Run /opt/bluetooth-mac.bash to get Bluetooth working, repeat after reboots

This Works

• booting
• display
• touch
• modem <- You might have to switch to the other slot if it does not work: mmcli -m 0 --set-primary-sim-slot=1, options are 1 or 2. Note that the modem could also be a different number, maybe try -m 1 if it is not found as the command will reboot the modem and then it changes.
• plymouth
• battery/charging
• mobile data
• wifi
• torch
• suspend
• call audio
• vibration
• Bluetooth™
• full disk encryption
• eSIM (provisioning tool not yet packaged and has to be compiled and installed manually)
• SMS (only receiving has been tested, but I don’t have reason to believe sending wouldn’t work)
• audio (ALSA config not packaged, but can be manually added using the playbook in this repo)
• camera (some sort of bug and it does not work currently, but the support is there)

This Has An Unknown Status

• Fingerprint Sensor
• NFC (should work, does so on pmOS)

This Does Not Work Yet (Soon™)

• GPS
• Speaker (the loud one, the other one for calls works... this means that you cannot annoy others with loud music yet, sorry :p)
• USB host mode (no Kernel support yet, but apparently this is being worked on)
• Verified Boot (first need to do research)

This Is Missing And Will Come Later

• accelerometer
• magnetometer
• ambient light sensor
• barometer

The Sources (Use The Source, Luke)

• My efforts of packaging a device-specific kernel: https://salsa.debian.org/erebion/sdm-670-linux (which can be used for now as patches are not yet in upstream Linux)
• mobian-recipes, which is used to build images: https://salsa.debian.org/Mobian-team/mobian-recipes
• droid-juicer, which retrieves some important files, such as firmware, from some partitions: https://gitlab.com/mobian1/droid-juicer
• postmarketOS wiki: https://wiki.postmarketos.org (lovely folks, thanks for sharing everything you found out the hard way :D)

Thanks For All The Fish

Huge thanks to be sdm670-linux project and flamingradian who did and still does an awful lot of work to make sure the Kernel works on those devices! :)

I don’t know how Kernel development works, so I would have never started porting without this project.

Find that here: https://gitlab.com/sdm670-mainline/linux