PINE64 PineTab (pine64-pinetab)

Features
USB Networking	Works
Internal storage
SD card
Battery	Works
Screen	Works
Touchscreen	Works
Multimedia
3D Acceleration	Works
Audio	Works
Camera	Works
Camera Flash
Connectivity
WiFi	Works
Bluetooth	Works
Miscellaneous
FDE	Works
USB OTG	Works
HDMI/DP
Sensors
Accelerometer	Works
Magnetometer
Ambient Light
Proximity
Hall Effect
Haptics
Barometer

PINE64 PineTab
	; The PineTab running Sway (old prototype device)
Manufacturer	PINE64
Name	PineTab
Codename	pine64-pinetab
Released	2019
Type	tablet
Hardware
Chipset	Allwinner A64
CPU	4x 1152 MHz Cortex-A53
GPU	Mali-400 MP2
Display	800x1280 IPS
Memory	2 GB
Architecture	aarch64
Software
Original software	Ubuntu Touch
postmarketOS
Category	testing
Pre-built images	no
Mainline	yes
postmarketOS kernel	5.9.x
Unixbench Whet/Dhry score	1056.1

Contributors

Users owning this device

Alexeymin (Notes: Engineering sample, only 1Gb RAM, bad connection to keyboard pogo pins - collecting dust in a drawer)
Brutuss
Danct12
Drebrez
DylanVanAssche (Notes: Engineering sample with 2GB RAM, no keyboard)
Icenowy (Notes: Two with different LCD versions)
MartijnBraam (Notes: Engineering sample, only 1Gb RAM, bad connection to keyboard pogo pins)
Z3ntu

Installation

The PineTab will boot from a bootable microSD card if it is plugged, and fall back to booting from internal eMMC. You can install postmarketOS on either of them (or even on both).

Build your image with pmbootstrap using pmbootstrap install --sdcard. Either set a micro SD card as target, or boot your PineTab with JumpDrive and select the eMMC.

Serial console

The PineTab has a serial port in the headphone connector, it's activated by a switch behind the SD card cover. If the switch is pointed toward the SD card the headphone connector is in audio mode, if it's pointed the other way it's in UART mode.

The uart is 115200n8

The pinout for the serial connector on the tablet side is:

Tip: RX
Ring: TX
Sleeve: GND

The serial connection is 3.3V

You can also buy the debug cable from PINE64 Store.

Components

Component	Model	Driver
Touchscreen	Goodix GT9271	TOUCHSCREEN_GOODIX
Rear camera	OmniVision OV5640	VIDEO_OV5640
Front camera	GalaxyCore GC2145	Nope
LCD	Feixin K101 IM2BA02	DRM_PANEL_FEIXIN_K101_IM2BA02
WiFi	Realtek RTL8723CS	RTL8723CS
Bluetooth	Realtek RTL8723CS	BT_HCIUART_RTL
Accelerometer	Bosch BMA223	BMC150_ACCEL_I2C
Volume buttons	Buttons connected to the KEYADC	KEYBOARD_SUN4I_LRADC
Power button	X-Powers AXP803	INPUT_AXP20X_PEK
Battery fuel gauge	X-Powers AXP803	BATTERY_AXP20X

Touchscreen

The touchscreen on the PineTab is controlled by goodix module on i2c-0, at address 0x5d.

Cameras

Both front and back camera shares the same csi-0 bus. Currently only the back camera (OV5640) has mainline support.

It's not clear what would it reacts to both front and back camera. More information needed on this.

Since Cerdus is at /dev/video0, the CSI is at /dev/video1 and can be controlled with /dev/media1 using media-ctl

pine-pinetab:~# media-ctl --set-v4l2 '"ov5640 2-003c":0[fmt:UYVY8_2X8/1280x720]' -d /dev/media1
pine-pinetab:~# ffmpeg -s 1280x720 -f video4linux2 -i /dev/video1 -vframes 1 selfie.jpg

Wi-Fi

Wi-Fi works using the RTL8723CS driver from Icenowy, loads and connect to a Wi-Fi perfectly fine. However power saving capabilities aren't working, so the PineTab battery will drain more quicker.

Bluetooth

Bluetooth also works on this device after installing firmware-rtl8723bt, there is a patch series on LKML.

Accelerometer

The accelerometer driver is for BMA250 on mainline, and works just fine. The accelerometer value could be get here:

pine-pinetab:~$ cat /sys/bus/iio/devices/iio\:device1/name 
BMA222E
pine-pinetab:~$ cat /sys/bus/iio/devices/iio\:device1/in_accel_x_raw 
-1
pine-pinetab:~$ cat /sys/bus/iio/devices/iio\:device1/in_accel_y_raw 
28
pine-pinetab:~$ cat /sys/bus/iio/devices/iio\:device1/in_accel_z_raw 
-12

Audio

Speakers

Sound output should work after unmuting AIF1 Slot 0 digital and DAC. However Danct12's unit had it's speakers broken so this hasn't tested on him, but confirmed working on others.

The Speaker output is named "Line Out"

Headphone Jack

Thankfully our device still has the headphone jack, so you could still listen to "The Beatles", right?

Well, sure. Headphones should work after unmuting Headphone and AIF1 Slot 0 digital.

Microphone

Microphone can be enabled by toggle capture and unmute "AIF1 Data Digital Audio", "Mic1", "Mic2".

The microphone can be found here:

RAM

Changing the Clock Frequency

See the PinePhone article.