/n8000_mainline

Contains files that help me make the Galaxy Note 10.1 work on mainline, highly flammable, handle with care!

Primary LanguageShellGNU General Public License v2.0GPL-2.0

General

  • all code references are related to the old LOS kernel for cm-14.1

HW Revisions

  • code references multiple versions of the tablet with changing hardware
  • officially checked in code are 5, 6 and 7 to 9 but there could be others
  • version <= 5
    • is this the N801x?
  • version 6
    • confirmed N8000 on own hardware
  • version 7
    • reserved (see los kernel p4-input.c line 122)
  • version 8
    • same as 0.7
  • version 9+
    • LTE model such as N8020 (does this also include the N8015?)
    • my N8020 is revision b

ADC

  • detects the following
    • item connected at 30 pin connector
    • battery charge
    • microphone jack item
  • stmpe811-adc.c
  • already mainlined but a first test always gave the same results for the readings

Battery, Charging, Fuel Gauge

  • one of the bigger problems, the glue code is quite complex
  • maybe we can port this from the newer version of the note?
  • charger
    • smb347_charger.c
    • supported in mainline but no device tree binding yet
  • battery
    • sec_battery_px.c
    • battery charge? via adc channel 6
    • this code looks like the glue code for charger, battery and fuel gauge
  • fuel gauge
    • max17042_fuelgauge_px.c
    • can be replaced with max17042_battery from mainline
  • max77686 = pmic + rtc
    • should be mainly supported

Network

  • works out of the box, only the nvram file will be a small problem
  • Broadcom BCM4334 wireless
    • has multiple versions
      • nvram_net.txt_murata -> socitype:0x1 chip:0x4334 rev:0x3 pkg:0x0
      • nvram_net.txt -> ?
      • nvram_net.txt_murata_b2 -> ?
      • nvram_net.txt_semcosh -> ?
    • somtimes rev 0x2 can be 0x1 (see dhd_sdio.c @ line 8711)
    • there seems to be no connection between system_rev and chip revision

Display

  • the display is from samsung and doesn't seem to need any driver aside from the gpio-backlight one
  • mdnie code is missing, this will probably cause issues with display adjustments like brightness and color adjustments

Touchscreen

  • Atmel touchpad

    • works out of the box
    • will be changed depending on the system_rev (p4-input @ line 512)
    • cfg files are in usr/lib/firmware, the one that fits needs to be renamed to maxtouch.cfg

  • Synaptics touchpad

    • for system_rev <0x5
    • what is this, certain hw versions or countries?
    • more info needed

Connectors

  • 30 pin usb connector
    • completely missing and quite a huge task but can be split into parts
    • old: 30pin_con.c
    • cable type via adc channel 7
    • at least one of the accessories is chainable (keyboard -> usb connection)
      • power goes in both directions
    • known accessories
      • MHL adapter (does this exist? it's supported in the code)
      • USB to pc
      • USB to charger (I think this only matters in terms of transferred current)
      • keyboard
        • there seems to be an overcurrent issue (mach-p4notepq.c @ line 1403)
      • OTG adapter
  • headphone jack
    • sec_jack.c
    • device detection via adc channel 4

Sensors