Port based on an unofficial LineageOS port
from https://www.los-legacy.de/17.1/zerofltexx, using kernel from https://github.com/Exynos7420/android_kernel_samsung_exynos7420/
What works:
- Kernel boots
- Display and touch input (tested with Weston)
- USB networking
Note: I removed camera support in kernel config for now, as there were related kernel crashes.
Wifi doesn't work either yet because the firmware dependencies/paths need to be fixed first.
The modprobe.conf is not necessary on those devices because they already
load the panel module using deviceinfo_modules_initfs. Let's skip the
modprobe.conf in that case so we don't need to add all panels in two places.
Simply disabling FIMC IS does not work however due to compilation
errors and a null pointer dereference. 01-fix-FIMC-IS-disabling.patch
takes care of this.
As with other exynos devices some additional things had to be disabled
to make the kernel compile after FIMC IS had been disabled,
specifically:
CONFIG_CAMERA_EEPROM
CONFIG_VIDEO_EXYNOS_MIPI_CSIS
CONFIG_LEDS_MAX77803
Apart from that we also have:
02-netfilter-symbols.patch, which fixes another compilation error.
03-usb_gadget-set-random-rndis-host-MAC-address-to-prev.patch (taken
from another device) which prevents host mac address being set to
00:00:00:00:00.
Kernel sources have been changed to the lineage-16.0 branch in the
exynos5420 repo, as that is where development happens at the moment.
based off from lineage os, manages to boot including ssh over usb.
had to disable:
CONFIG_HTC_RADIO_SMEM
CONFIG_HTC_MODEM_NOTIFIER
CONFIG_MSM_SMP2P
CONFIG_UIO_MSM_SHAREDMEM
[ci:skip-build]: already built successfully in CI
Instead of running the entire setup_usb_network_configfs function we
run the parts that are actually necessary for
setup_usb_network_android to succeed when it is run afterwards.
USB networking, Touchscreen and display are working.
CONFIG_SND_SOC_QDSP6V2 is omitted from kernel config for now as the resulting driver fails to build.
Changes:
- Depends on soc-sprd-audio-sc8830 package for audio support
- Includes fixes for X11 and color mode
- Switches to dtbtool-sprd
[ci:skip-build] Already built fine on CI in a MR
SEC_RESTRICT_ROOTING is a Samsung-specific option,
which makes unable to get root permissions
on the device.
Needed for postmarketos/pmbootstrap!2000 to be merged.
[ci:skip-build] Builds fine locally
Device: Asus Zenfone Max ZC550KL
MSM8916
Mainline Kernel
Works:
- Boots
- external sdcard
- Wifi/bt
- Display
- Touchscreen
I'm still working on this device. You can expect more things to work in
the future.
* Mainline kernel: enable installation of Wi-Fi firmware.
Now that we have Wi-Fi support in mainline kernel, use it.
* Mainline kernel: adjust description of mainline kernel
subpackage; we still cannot recommend it over downstream,
but it is not so experimental anymore.
* Downstream kernel: add workaround for broken SSH:
use dropbear instead of openssh server. See #808https://gitlab.com/postmarketOS/pmaports/-/issues/808
Hello there, DragonX256 here.
For now, this tablet only have flashing, USB net, display and touchscreen.
I will try to add other features soon, or, if I fail enough, switch to mainlining immediately :D
Fall back to gcc6, because wlan module compiled with gcc10 fails to
initialize with `module wlan: overflow in relocation type 261 val ffffffbffc000000`
error.
Explicitly add gcc-aarch64 in makedepends, because of gcc6 present, seems
like gcc dependencies not resolved correctly
[ci:skip-build]: already built successfully in CI
The existing device package and its dependencies are for i9305, but
renaming them to i9300 makes more sense, as the i9300 is the base
version (SIII) and the i9305 (SIII LTE) is the improved version.
Since the installer leaves the partition in a state where the initramfs
needs to resize it. But without the force parameter the postmarketOS
initramfs won't touch the partitions
Mostly the GCC10 yylloc failure was seen but several others have been
observed:
* wireguard script was silently failing
* several gcc10 x86 errors
* a checksum from kernel.org has changed
Now we have 3 different gcc10 yylloc patches:
gcc10-extern_YYLOC_global_declaration.patch:
Linux < 4.2
linux4.2-gcc10-extern_YYLOC_global_declaration.patch:
Linux 4.2+
linux4.17-gcc10-extern_YYLOC_global_declaration.patch:
Linux 4.17+
[ci:skip-build]
[ci:ignore-count]
[ci:skip-vercheck]
With these kernel sources the device boots successfully,
sometimes. Usually, kernel panics and device reboots a couple of
times, but after a few attempts (maybe 1, maybe 7) it succeeds to
boot. The problems seem to be related to FIMC IS, unfortunately it
does not seem to be possible to just disable it in the kernel config,
as that leads to compilation errors.
I have so far just experimented with getting wifi up and running, but
it does not work out of the box even after adding firmware package
with files from TheMuppets, wpa_supplicant fails to connect and dmesg
is filed with lines like:
```
[ 112.509235] [L0: wl_event_handle: 3109] CFG80211-INFO2) wl_escan_handler : Couldn't find P2PIE in probe response/beacon
```
[ci:skip-build]: already built successfully in CI
qrtr-ns is now part of the Linux kernel (as of version 5.9), so
there is no need to start it in userspace anymore. It does not seem
to be needed (or working) on downstream either.
linux-postmarketos-qcom-msm8996 is the only mainline kernel which
is still on < 5.9. In preparation to make the qrtr dependency optional
for rmtfs, let's explicitly enable qrtr-ns for MSM8996 devices to avoid
causing regressions.
Update to kernel 5.9 with the following changes:
* Change tri-state key to macro keys instead of 'A', 'B' and 'C' keys.
[ci:skip-build]: already built successfully in CI
