Android7.1 transplant GPS Ublox HAL

• Ublox find the driver package.

  Internet looking for a long time did not find, behind just the Internet search a 3.1 version.
  Into the Android source hardware directory

• Add files in the Android board-level file which adds GPS driver.

  Mainly the following two files
  device / rockchip / common / BoardConfig.mk

  310 BOARD_HAS_GPS ?= true
  311 BOARD_GPS_TYPE ?= ublox
  

  device/rockchip/rk3288/system.prop

  persist.sys.gpsTTY=/dev/ttyS1
  

• Ublox modify configuration files.

  hardware/u-blox/gps/u-blox.conf

  39 SERIAL_DEVICE                    /dev/ttyS1
  

• Compile ublox

  cd hardware/u-blox/gps/
  mm -B
  

  The Android version of which, directly translated a small error, similar to the DATA value can not be found, the two have the wrong line commented out just fine.
  Roughly hardware / u-blox / gps / supl / suplSMmanager.cpp this file
  after the compilation is complete, copy the files

  cp out/target/product/rk3288/obj/lib/gps.default.so out/target/product/rk3288/system/lib/hw/ -rf
  cp hardware/u-blox/gps/gps.conf  out/target/product/rk3288/system/etc/ -rf
  cp hardware/u-blox/gps/u-blox.conf  out/target/product/rk3288/system/etc/ -rf
  

  Then recompile Android
  burn a new system, install u-center