Samsung Galaxy Tab 3 Lite 7.0 (samsung-goyawifi)
![]() Samsung Galaxy Tab 3 Lite 7.0 | |
Manufacturer | Samsung |
---|---|
Name | Galaxy Tab 3 Lite 7.0 |
Codename | samsung-goyawifi |
Released | 2014 |
Hardware | |
Chipset | Marvell PXA986 |
CPU | Dual-core 1.2 GHz Cortex-A9 |
GPU | Vivante GC1000 |
Display | 1024×600 TFT, ~170 PPI (MDPI) |
Storage | 8GB |
Memory | 1GB |
Architecture | armv7 |
Software | |
Original software | Android 4.2.2 on Linux 3.4.5 |
FOSS bootloader | no |
postmarketOS | |
Category | testing |
Pre-built images | no |
Mainline | no |
Flashing |
Partial |
---|---|
USB Networking |
Works |
Internal storage |
No data |
SD card |
No data |
Battery |
Works |
Screen |
Works |
Touchscreen |
Works |
Multimedia | |
3D Acceleration |
Partial |
Audio |
Partial |
Camera |
No data |
Camera Flash |
No data |
Connectivity | |
WiFi |
Works |
Bluetooth |
No data |
GPS |
No data |
Miscellaneous | |
FDE |
Broken |
USB OTG |
No data |
Sensors | |
Accelerometer |
Works |
Haptics |
No data |
Links and development thread
Here you can get more and frequently updated information about status and downloads for this device:
Contributors
- cheadrian
Installation
The most compatible way is to use recovery zip. Make sure you have the TWRP recovery from the XDA thread for both ready-made zip or the build one.
You can navigate to the XDA thread above and download a flashable zip (faster) or you can build using pmbootstrap to get the latest version of packages (recommended).
$ pmbootstrap init
Pick the proper device according, Samsung -> Goyawifi
$ pmbootstrap install --android-recovery-zip --recovery-install-partition=external_sd
$ pmbootstrap export
$ cd /tmp/postmarketOS-export/
$ adb push pmos-samsung-goyawifi.zip /sdcard
Alternative, you can copy using MTP the zip inside tablet internal storage (/sdcard), microSD is mapped as /external_sd.
Audio
In order to make audio to work you need to set ssp_master to 1:
$ echo 1 | sudo tee /proc/driver/ssp_master
Then use amixer (or create a asound.state like-file):
amixer -D sysdefault cset name='PM805_CODEC_MAIN_POWERUP' 3
amixer -D sysdefault cset name='PM805_CODEC_SAI1_SETTING_2' 73
amixer -D sysdefault cset name='PM805_CODEC_SAI1_SETTING_1' 14
amixer -D sysdefault cset name='PM805_CODEC_SAI1_SETTING_3' 4
amixer -D sysdefault cset name='PM805_CODEC_VOL_CHANNLE_3_4_SEL' 240
amixer -D sysdefault cset name='PM805_CODEC_DIGITAL_BLOCK_EN_2' 5
amixer -D sysdefault cset name='PM805_CODEC_MIX_EQ_COEFFICIENT_3' 3
amixer -D sysdefault cset name='PM805_CODEC_MIX_EQ_COEFFICIENT_3' 3
amixer -D sysdefault cset name='PM805_CODEC_MIX_EQ_COEFFICIENT_3' 33
amixer -D sysdefault cset name='PM805_CODEC_DIGITAL_BLOCK_EN_1' 13
amixer -D sysdefault cset name='PM805_CODEC_VOL_CTRL_PARAM_SEL' 32
amixer -D sysdefault cset name='PM805_CODEC_PDM_SETTING_2' 65
amixer -D sysdefault cset name='PM805_CODEC_PDM_SETTING_1' 193
amixer -D sysdefault cset name='PM822_CLASS_D_1' 242
amixer -D sysdefault cset name='PM822_MIS_CLASS_D_1' 194
amixer -D sysdefault cset name='PM822_MIS_CLASS_D_2' 112
Accelerometer
You can access accelerometer raw data from:
$cat /sys/class/sensors/accelerometer_sensor/raw_data
Calibration data:
$cat /sys/class/sensors/accelerometer_sensor/calibration
3D acceleration
Hardware accelerated graphic demos, based on old Etnaviv initial work over proprietary Vivante GPU:
The kernel also integrates an old Etnaviv module I've backported, yet didn't manage to make it work with actual mesa, but it probably would work.
Related work
Can compile the kernel using Pazos kernel source using his shell script and bind pmOS generated initramfs with the kernel build with GCC 4.7.
The output to UART using MicroUSB cable with 520Kohm, 619Kohm and 150Kohm between ID and GND pins works, with the kernel config according to Command Line and serial output.