WEXLER Tab 7t (wexler-qc750): Difference between revisions
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| name = Tab 7t | | name = Tab 7t | ||
| codename = wexler-qc750 | | codename = wexler-qc750 | ||
| image = File: | | image = File:PXL_20230710_231202953.jpg | ||
| imagecaption = Booted tablet | | imagecaption = Booted tablet with lxqt | ||
| releaseyear = 2012 | | releaseyear = 2012 | ||
| originalsoftware = Android 4.2.2 | | category = testing | ||
| chipset = | | originalsoftware = Android | ||
| cpu = | | originalversion = 4.2.2 | ||
| pmoskernel = downstream 3.1.10, mainline 6.6.22 | |||
| chipset = Nvidia Tegra 3 (T30L) | |||
| cpu = Quad-core 1.3 GHz Cortex-A9 | |||
| gpu = NVIDIA ULP GeForce GPU 12 cores | | gpu = NVIDIA ULP GeForce GPU 12 cores | ||
| storage = | | display = 1280x800 IPS LCD | ||
| storage = 8, 16, 32 GB | |||
| memory = | | memory = 1 GB DDR3L | ||
| architecture = armv7 | | architecture = armv7 | ||
<!-- the following status_* questions should be answered with Y | | type = tablet | ||
| | | whet_dhry = 1161.4 <!-- see Unixbench page on wiki --> | ||
| | | genericdevice=Nvidia Tegra armv7 (nvidia-tegra-armv7) | ||
| status_touch = Y | <!-- Features --> | ||
| status_screen = Y | <!-- the following status_* questions should be answered with Y for yes, P for partial, N for no, - for N/A or unavailable, or left blank for untested or unknown --> | ||
| status_wifi = | | status_usbnet = Y <!-- USB networking does work? then put Y here and delete this comment --> | ||
| status_xwayland = | | status_flashing = Y <!-- Flashing with "pmbootstrap flasher" works? Put Y here. It works the same for everything coming below. --> | ||
| status_fde = | | status_touch = Y <!-- Touch screen is working? You can also answer these questions with P for partially. --> | ||
| status_mainline = | | status_screen = Y <!-- The display is working? --> | ||
| status_battery = | | status_wifi = <!-- Wireless network works? --> | ||
| status_3d = | | status_xwayland = <!-- Showing X11 applications in a Wayland compositor (Weston, KWin, ...) works? --> | ||
| status_fde = <!-- When installing with full disk encryption, can you type in the password with the on screen keyboard? --> | |||
| status_audio = | | status_mainline = Y <!-- Instead of a Linux kernel fork, it is possible to run mainline. --> | ||
| status_bluetooth = | | status_battery = <!-- Charging the battery with charging-sdl is possible --> | ||
| status_camera = | | status_3d = <!-- Hardware accelerated 3D graphics (e.g. with freedreno) --> | ||
| status_gps = | | status_audio = <!-- Using the device's speakers/headphone jack works --> | ||
| status_mobiledata = | | status_bluetooth = <!-- It's possible to pair and use other devices via the bluetooth protocol --> | ||
| status_sms = | | status_camera = <!-- Taking photos and videos works. --> | ||
| status_calls = | | status_gps = <!-- The Global Positioning System sensor works. --> | ||
| status = Kernel compiles, device boots, testing capabilities | | status_mobiledata = <!-- Connecting to the Internet via cellular network. --> | ||
| status_sms = <!-- Sending and receiving short messages works as intended. --> | |||
| status_calls = <!-- Talking to other people over the cellular network. --> | |||
| status_otg = Y <!-- USB-OTG adapters work, e.g. to connect an USB flash drive to the device --> | |||
| status_nfc = <!-- Near-Field Communication (NFC) works --> | |||
<!-- Sensors --> | |||
| status_accel = <!-- The sensor that measures proper acceleration works --> | |||
| status_magnet = <!-- Magnetometer works --> | |||
| status_light = <!-- Ambient light sensor works --> | |||
| status_proximity = <!-- Proximity sensor works --> | |||
| status_hall = <!-- Hall effect sensor works --> | |||
| status_barometer = <!-- Barometer works --> | |||
| status_powersensor = <!-- Power sensor works --> | |||
<!-- Misc --> | |||
| status_cameraflash = - <!-- Camera flash/torch works --> | |||
| status_keyboard = - <!-- Keyboard works (Mark "-" if device doesn't have a keyboard) --> | |||
| status_touchpad = - <!-- Touchpad works (Usually applicable to laptops) --> | |||
| status_usba = Y <!-- Full-sized USB-A port works (Usually applicable to SBCs and laptops) --> | |||
| status_hdmidp = <!-- Video and audio output with HDMI or DisplayPort works --> | |||
| status_irtx = - <!-- Infrared (IR) transmit works --> | |||
| status_irrx = - <!-- Infrared (IR) receive works --> | |||
| status_stylus = - <!-- --> | |||
| status_haptics = - <!-- --> | |||
| status_ethernet = - <!-- --> | |||
| status_fossbootloader = Y <!-- Device has a free and open source bootloader --> | |||
| status_uboot = Y | |||
| status_uboot_primary = Y | |||
| status_uboot_secondary = N | |||
| status_uboot_mainline = Y | |||
| status_uboot_internalstorage = Y | |||
| status_uboot_sd = Y | |||
| status_uboot_usbhost = Y | |||
| status_uboot_usbperipheral = Y | |||
| status_uboot_screen = Y | |||
| status_uboot_keyboard = - | |||
| status_uboot_buttons = Y | |||
| booting = yes <!-- The device is booting at all, can be yes/no *IMPORTANT* --> | |||
| status = Kernel compiles, device boots, testing capabilities <!-- Text displayed in the "not booting" table on the Devices page , e.g "kernel compiles, doesn't boot" --> | |||
}} | }} | ||
== Notes == | == Notes == | ||
* Device SoC | * Device SoC is similar to SoC in [[Google_Nexus_7_2012_(asus-grouper)|Google Nexus 7 2012]] and [[Google_Nexus_7_2012_GSM_(asus-tilapia)|Google Nexus 7 2012 GSM]] | ||
* OTG available - partially (full USB port, working only when device connected before booting) | * OTG available - full support, connect and disconnect, at least USB keyboard-mouse and USB drives <s><span style="color:#777777">partially (full USB port, working only when device connected before booting)</span></s> | ||
* Battery charges (at least not discharges while OS work). Somehow reports status only in xfce4. | |||
* Device have 3G modem (not working?) | * Device have 3G modem (not working?) | ||
* MiniHDMI port available (not working?) | * MiniHDMI port available (not working?) | ||
* I accidentally broke my touchscreen connector on the motherboard, so I'm working with wireless USB keyboard-mouse now | |||
== Tested environments == | |||
* xfce4: works better than other environments, but still have some issues | |||
* lxqt: works fine, can't manage to reboot or power off in UI, doing through terminal | |||
* console: works with connected wireless USB keyboard-mouse | |||
* fbkeyboard: works, can't test touchscreen | |||
Any other UIs is not working, or I can't get them to work for now. | |||
== How to enter flash mode == | |||
'''fastboot''': Press {{button|Volume Up}} + {{button|Power}} keys, with {{button|Volume Down}} move selection to <code>Fastboot Protocol</code>, then choose it by pressing {{button|Volume Up}}. | |||
'''APX''': Press {{button|Volume Up}} + {{button|Power}} keys, with {{button|Volume Down}} move selection to <code>Forced Recovery</code>, then choose it by pressing {{button|Volume Up}}. | |||
== Mainline status == | |||
{{note|This part is in development.}} | |||
Tablet boots mainline kernel 6.6.22 https://gitlab.com/grate-driver/linux, adaptation is going on in forked tree https://gitlab.com/DX37/linux/-/tree/wexler-qc750 | |||
{|class="wikitable feature-colors" | |||
! Status | |||
! Hardware | |||
! Info | |||
|- | |||
| P | |||
| Booting | |||
| Mainline kernel boots with U-Boot, so it needs to be placed in pmOS_boot partition on microSD card. Can be in theory loaded from eMMC boot partition, but grate kernel is bigger, than old downstream kernel, and surpasses 8 Mb partition size. Needs testing. | |||
|- | |||
| P | |||
| Bootloader | |||
| Open source bootloader [https://gitlab.com/clamor-s/u-boot U-Boot] is available as alternative for vendor bootloader and can replace it, but starts only sometimes. <!-- U-Boot can not boot downstream kernel if it has Trusted Foundations enabled. --> | |||
|- | |||
| Y | |||
| Panel | |||
| Chunghwa CLAA070WP03XG LVDS simple panel. | |||
|- | |||
| Y | |||
| Backlight | |||
| Simple pwm-backlight GPIO backlight. Working and even manageable in xfce4. | |||
|- | |||
| P | |||
| miniHDMI output | |||
| Maximum output is 1920x1080. Needs manual detection by opening Display settings (in xfce4). No audio. | |||
|- | |||
| ? | |||
| Touchscreen | |||
| Novatek NT11003 with nt1103-ts driver. Worked in downstream kernel, but can't test it in mainline since I broke touchscreen connector on the motherboard. | |||
|- | |||
| Y | |||
| microUSB & Full size USB | |||
| Works. USB storage and USB peripherals are working (using USB keyboard-mouse kit instead of touchscreen). | |||
|- | |||
| Y | |||
| Internal memory | |||
| eMMC 8 Gb, but can be 16 or even 32 Gb. | |||
|- | |||
| ? | |||
| GPS | |||
| Not tested yet. | |||
|- | |||
| ? | |||
| WiFi | |||
| Not tested yet, possibly wl12xx driver. | |||
|- | |||
| ? | |||
| Bluetooth | |||
| SD8787? Not tested yet. | |||
|- | |||
| P | |||
| GPIO keys | |||
| There is 3 keys on GPIO: Power, Volume up, Volume down. Power key responding only to holding for force poweroff. | |||
|- | |||
| ? | |||
| GPIO led | |||
| There's only one GPIO led for charging state. Not tested yet, possibly works only on low-level hardware. | |||
|- | |||
| Y | |||
| Battery | |||
| TI BQ27500, works. | |||
|- | |||
| ? | |||
| Charger | |||
| TI BQ24160, not tested yet. | |||
|- | |||
| Y | |||
| PMIC | |||
| Maxim MAX77663 PMIC. | |||
|- | |||
| P | |||
| Sound | |||
| TI TLV320AIC3206, headphones and speakers sound is working, can't test microphone (guess still need UCM for that and speakers/headphones switching). | |||
|- | |||
| ? | |||
| Thermal sensor | |||
| NCT1008 ON Semiconductor, not tested yet. | |||
|- | |||
| P | |||
| Orientation sensors | |||
| Magnetometer Asahi-Kasei AK8975 and accelerometer Kionix KXTF9 seems to be working. Gyroscope Invensense MPU3050 does not. | |||
|- | |||
| ? | |||
| Light sensor | |||
| ISL29018? ISL29028? Not tested yet. | |||
|- | |||
| ? | |||
| Front camera | |||
| GC0308, not tested yet. | |||
|- | |||
| ? | |||
| Rear camera | |||
| T8EV5, not tested yet. | |||
|- | |||
| ? | |||
| Modem | |||
| usi_3g? Not tested yet. | |||
|- | |||
| P | |||
| Graphics support | |||
| 2D acceleration works with xf86-video-opentegra ([[Nvidia_Tegra#GPU]]). | |||
|- | |||
|} | |||
== U-Boot == | |||
{{note|This part is in development.}} | |||
Current [https://gitlab.com/clamor-s/u-boot U-Boot] status (in development by [[User:Clamor|Clamor]]): | |||
{|class="wikitable feature-colors" | |||
! Status | |||
! Feature | |||
! Info | |||
|- | |||
| P | |||
|Primary bootloader | |||
|U-Boot can be loaded with patched nvflash (tegra30_debrick) through APX (Forced Recovery), but after flashing starting only sometimes. | |||
Created bricksafe.img successfully restores vendor bootloader (and original ROM flash, of course). | |||
|- | |||
| ? | |||
|Secondary bootloader | |||
|U-Boot chainloading from both /boot and /recovery partitions not tested. | |||
|- | |||
| Y | |||
|Panel | |||
|LVDS simple panel works. | |||
|- | |||
| Y | |||
|MicroSD | |||
|Fully functional and detectable. Can be used as boot source. Can be mounted from U-Boot. | |||
|- | |||
| Y | |||
|eMMC | |||
|Fully functional and detectable. Can be used as boot source. Can be mounted from U-Boot. | |||
|- | |||
| Y | |||
|Boot kernel | |||
|Yes, and can be highly adjusted with extlinux.conf. | |||
|- | |||
| ? | |||
|Boot menu | |||
|Not tested. <!-- Native u-boot bootmenu works perfectly fine. It can be called with pressing volume down button on boot. --> | |||
|- | |||
| ? | |||
|Power management | |||
|Not tested. <!-- Offline charging and charging in u-boot both work and are hw configured. Both power off and reboot options work and are available in bootmenu. If no valid kernel is found or lid-sensor is active (docked and closed) tablet will turn off. --> | |||
|- | |||
| P | |||
|Fastboot | |||
|Not fully tested. <!-- Fastboot option is available in bootmenu. All functions operate correctly. --> | |||
|- | |||
| ? | |||
|Bricksafe hook (legacy) | |||
|Not tested. <!-- U-Boot can successfully generate and restore device specific image of first 3 encrypted partitions. It is identical to one, generated with nvflash command. If you can not perform nvflash, use fusée gelée to launch u-boot from RAM and generate bricksafe. You need to insert blank fat microSD so it can be saved! --> | |||
|- | |||
| ? | |||
|Boot Android | |||
|Not tested and possibly not working. <!-- Booting Android kernel can be performed only same way mainline kernel boots. Additionally it must not have CONFIG_TRUSTED_FOUNDATIONS = y and some additional small patches, it can be booted by u-boot. --> | |||
|- | |||
| ? | |||
|Self update | |||
|Not tested. <!-- Self update option is implemented and write is done correctly. Re-crypt is required to be able to self update. Bootloader file has to have name '''u-boot-dtb-tegra.bin''' and be placed on 1st partition of microSD. --> | |||
|- | |||
|} | |||
== Contributors == | == Contributors == | ||
* [[user:DragonX256|DragonX256]] | * [[user:DragonX256|DragonX256]] | ||
* [[User:Clamor|Clamor]] | |||
== Maintainer(s) == | == Maintainer(s) == | ||
Line 52: | Line 273: | ||
== Users owning this device == | == Users owning this device == | ||
{{Device owners}} | {{Device owners}} | ||
== See also == | == See also == | ||
Line 75: | Line 278: | ||
* Using this old 3.1.10 kernel, built with '''gcc6''': https://github.com/DmitryADP/morpheus_kernel_wexler_qc750 | * Using this old 3.1.10 kernel, built with '''gcc6''': https://github.com/DmitryADP/morpheus_kernel_wexler_qc750 | ||
* [https://github.com/DmitryADP/device_qc750 Device related build files] | * [https://github.com/DmitryADP/device_qc750 Device related build files] | ||
* [https://github.com/ | * [https://github.com/clamor-s/diff_qc750 Possibly full device related source files] | ||
* [https://www.reddit.com/r/postmarketOS/comments/jwld44 | * [https://www.reddit.com/r/postmarketOS/comments/jwld44 Some nice photos on Reddit] | ||
* [https://www.reddit.com/r/postmarketOS/comments/jyw5mw Photos on Reddit about getting UART debug ready] | |||
* {{MR|1742|pmaports}} Initial merge request | * {{MR|1742|pmaports}} Initial merge request | ||
* {{Device package|wexler-qc750}} | * {{Device package|wexler-qc750}} | ||
* {{Kernel package|wexler-qc750}} | * {{Kernel package|wexler-qc750}} |
Latest revision as of 04:27, 7 December 2024
This device is supported as part of a generic port. Refer to Nvidia Tegra armv7 (nvidia-tegra-armv7) for installation instructions and more information. |
![]() Booted tablet with lxqt | |
Manufacturer | WEXLER |
---|---|
Name | Tab 7t |
Codename | wexler-qc750 |
Released | 2012 |
Type | tablet |
Hardware | |
Chipset | Nvidia Tegra 3 (T30L) |
CPU | Quad-core 1.3 GHz Cortex-A9 |
GPU | NVIDIA ULP GeForce GPU 12 cores |
Display | 1280x800 IPS LCD |
Storage | 8, 16, 32 GB |
Memory | 1 GB DDR3L |
Architecture | armv7 |
Software | |
Original software | Android |
Original version | 4.2.2 |
FOSS bootloader | yes |
postmarketOS | |
Category | testing |
Pre-built images | no |
Mainline | yes |
postmarketOS kernel | downstream 3.1.10, mainline 6.6.22 |
Unixbench Whet/Dhry score | 1161.4 |
Generic port | Nvidia Tegra armv7 (nvidia-tegra-armv7) |
Flashing |
Works |
---|---|
USB Networking |
Works |
Internal storage |
No data |
SD card |
No data |
Battery |
No data |
Screen |
Works |
Touchscreen |
Works |
Multimedia | |
3D Acceleration |
No data |
Audio |
No data |
Camera |
No data |
Connectivity | |
WiFi |
No data |
Bluetooth |
No data |
GPS |
No data |
NFC |
No data |
Modem | |
Calls |
No data |
SMS |
No data |
Mobile data |
No data |
Miscellaneous | |
FDE |
No data |
USB-A |
Works |
USB OTG |
Works |
HDMI/DP |
No data |
Sensors | |
Accelerometer |
No data |
Magnetometer |
No data |
Ambient Light |
No data |
Proximity |
No data |
Hall Effect |
No data |
Barometer |
No data |
Power Sensor |
No data |
Primary Bootloader |
Works |
---|---|
Secondary Bootloader |
Broken |
Mainline |
Works |
Internal Storage |
Works |
SD card |
Works |
USB Host |
Works |
USB Peripheral |
Works |
Display |
Works |
Buttons |
Works |
Notes
- Device SoC is similar to SoC in Google Nexus 7 2012 and Google Nexus 7 2012 GSM
- OTG available - full support, connect and disconnect, at least USB keyboard-mouse and USB drives
partially (full USB port, working only when device connected before booting) - Battery charges (at least not discharges while OS work). Somehow reports status only in xfce4.
- Device have 3G modem (not working?)
- MiniHDMI port available (not working?)
- I accidentally broke my touchscreen connector on the motherboard, so I'm working with wireless USB keyboard-mouse now
Tested environments
- xfce4: works better than other environments, but still have some issues
- lxqt: works fine, can't manage to reboot or power off in UI, doing through terminal
- console: works with connected wireless USB keyboard-mouse
- fbkeyboard: works, can't test touchscreen
Any other UIs is not working, or I can't get them to work for now.
How to enter flash mode
fastboot: Press Fastboot Protocol
, then choose it by pressing .
APX: Press Forced Recovery
, then choose it by pressing .
Mainline status
This part is in development. |
Tablet boots mainline kernel 6.6.22 https://gitlab.com/grate-driver/linux, adaptation is going on in forked tree https://gitlab.com/DX37/linux/-/tree/wexler-qc750
Status | Hardware | Info |
---|---|---|
P | Booting | Mainline kernel boots with U-Boot, so it needs to be placed in pmOS_boot partition on microSD card. Can be in theory loaded from eMMC boot partition, but grate kernel is bigger, than old downstream kernel, and surpasses 8 Mb partition size. Needs testing. |
P | Bootloader | Open source bootloader U-Boot is available as alternative for vendor bootloader and can replace it, but starts only sometimes. |
Y | Panel | Chunghwa CLAA070WP03XG LVDS simple panel. |
Y | Backlight | Simple pwm-backlight GPIO backlight. Working and even manageable in xfce4. |
P | miniHDMI output | Maximum output is 1920x1080. Needs manual detection by opening Display settings (in xfce4). No audio. |
? | Touchscreen | Novatek NT11003 with nt1103-ts driver. Worked in downstream kernel, but can't test it in mainline since I broke touchscreen connector on the motherboard. |
Y | microUSB & Full size USB | Works. USB storage and USB peripherals are working (using USB keyboard-mouse kit instead of touchscreen). |
Y | Internal memory | eMMC 8 Gb, but can be 16 or even 32 Gb. |
? | GPS | Not tested yet. |
? | WiFi | Not tested yet, possibly wl12xx driver. |
? | Bluetooth | SD8787? Not tested yet. |
P | GPIO keys | There is 3 keys on GPIO: Power, Volume up, Volume down. Power key responding only to holding for force poweroff. |
? | GPIO led | There's only one GPIO led for charging state. Not tested yet, possibly works only on low-level hardware. |
Y | Battery | TI BQ27500, works. |
? | Charger | TI BQ24160, not tested yet. |
Y | PMIC | Maxim MAX77663 PMIC. |
P | Sound | TI TLV320AIC3206, headphones and speakers sound is working, can't test microphone (guess still need UCM for that and speakers/headphones switching). |
? | Thermal sensor | NCT1008 ON Semiconductor, not tested yet. |
P | Orientation sensors | Magnetometer Asahi-Kasei AK8975 and accelerometer Kionix KXTF9 seems to be working. Gyroscope Invensense MPU3050 does not. |
? | Light sensor | ISL29018? ISL29028? Not tested yet. |
? | Front camera | GC0308, not tested yet. |
? | Rear camera | T8EV5, not tested yet. |
? | Modem | usi_3g? Not tested yet. |
P | Graphics support | 2D acceleration works with xf86-video-opentegra (Nvidia_Tegra#GPU). |
U-Boot
This part is in development. |
Current U-Boot status (in development by Clamor):
Status | Feature | Info |
---|---|---|
P | Primary bootloader | U-Boot can be loaded with patched nvflash (tegra30_debrick) through APX (Forced Recovery), but after flashing starting only sometimes.
Created bricksafe.img successfully restores vendor bootloader (and original ROM flash, of course). |
? | Secondary bootloader | U-Boot chainloading from both /boot and /recovery partitions not tested. |
Y | Panel | LVDS simple panel works. |
Y | MicroSD | Fully functional and detectable. Can be used as boot source. Can be mounted from U-Boot. |
Y | eMMC | Fully functional and detectable. Can be used as boot source. Can be mounted from U-Boot. |
Y | Boot kernel | Yes, and can be highly adjusted with extlinux.conf. |
? | Boot menu | Not tested. |
? | Power management | Not tested. |
P | Fastboot | Not fully tested. |
? | Bricksafe hook (legacy) | Not tested. |
? | Boot Android | Not tested and possibly not working. |
? | Self update | Not tested. |
Contributors
Maintainer(s)
Users owning this device
- DragonX256 (Notes: Tegra 3 tablet, close to mainline kernel)
- Shipa (Notes: all clips are broken, a bit quirky)
See also
- This SoC has mainline support
- Using this old 3.1.10 kernel, built with gcc6: https://github.com/DmitryADP/morpheus_kernel_wexler_qc750
- Device related build files
- Possibly full device related source files
- Some nice photos on Reddit
- Photos on Reddit about getting UART debug ready
- pmaports!1742 Initial merge request
- Device package
- Kernel package