高通开发笔记二

[xiaozhu12371237]

16. 组合键进入fastboot模式: bootable/bootloader/lk/app/aboot/aboot.c--->aboot_init()
17. app通过driver创建的开关控制节点device/qcom/d801/system.prop----->>>persist.sys.elecscreen.path=/sys/class/hanvon/hanvon0868/hanvon_state
19. 修改device/qcom/d801/overly/frameworks/base/core/res/res/values/config.xml
    使用命令:mmm frameworks/base/core/res/ 编译生成out/target/product/d801/system/framework/framework-res.apk
    push到手机:adb push framework-res.apk system/framework/
    重启

21 sensor测试命令   sns_cm_test -r 20 -d 1 -s 40 -t 0 
22. Setting添加新选项device/qcom/d801/overlay/packages/apps/Settings/res/values/bools.xml
    编译: mmm packages/apps/Settings/
    下载: adb push system/priv-app/Settings.apk system/priv-app/
23. otg设备树在msm8226.dtsi   usb_otg: usb@f9a55000

24. 
sudo vim /etc/udev/rules.d/70-Android.rules
sudo chmod a+rx /etc/udev/rules.d/70-Android.rules
手机Permission
adb shell setprop service.adb.root 1
vi ~/.android/adb_usb.ini
sudo adb kill-server
adb shell
修改SELinux 命令adb remount;adb shell;setenforce 0   查看命令getenforce.  如果root下仍不能向手机push，可以关闭SELinux试试

25. GPS代码hardware/qcom/gps/etc

26. 添加fastboot模式logo
进入fastboot模式是从bootable/bootloader/lk/app/aboot/aboot.c fastboot_init()函数开始进入的，只要在这个函数中添加图片即可。
添加图片code：
    struct fbimage *fbimg= NULL;
    struct fbimage default_fbimg = {0};
    fbcon_clear();//清屏
    fbimg = &default_fbimg;
    fbimg->header.width = SPLASH_IMAGE_HEIGHT;
    fbimg->header.height = SPLASH_IMAGE_WIDTH;
    fbimg->image = (unsigned char *)imageBuffer_rgb888;
    fbcon_putImage(fbimg, false);//可以在代码中搜一下，参考其它地方的用法使用；

27.抓log
ADB log (adb logcat -v time) 
radio log (adb logcat -b radio -v time) 
event log (adb logcat -b events -v time) 
adb shell cat proc/kmsg > ~/log/kernel.log
adb shell logcat -v time > adb.log
adb shell logcat -b events -v time > event.log
cat proc/kmsg > /data/nt35596.txt &
28.触摸屏自动旋转
驱动probe函数中添加
#ifdef INPUT_PROP_DIRECT
__set_bit(INPUT_PROP_DIRECT, input->propbit); 
#endif
在framesworks/base/services/input/InputReader.cpp中TouchInputMapper::configureParameters()中会根据它将
deviceType设置成DEVICE_TYPE_TOUCH_SCREEN

29. 串口测试:
  把mytty 放到手机system/bin/
  执行命令mytty ttyHSL1 RW //RW是随便写的,r只读,w只写,为空会错误,其它不为空就行

30. 高通sim卡热插拔
配置GPIO的文件，Non-HLOS/modem_proc/uim/uimdrv/src/hw/gpio_tlmm/uimdrv_gpio.c，搜索CARD_DETECT_GPIO
Please first make sure your HW detect GPIO work normal. 
Then this NV70210 need match HW detect GPIO. 
Set NV70210 
hw_config.uim[0].ENABLE_UIM_HOTSWAP: TRUE 
hw_config.UIM[0].UIM_HOTSWAP_POLARITY: ACTIVE_HIGH 
hw_config.UIM[0].UIM_CARD_DETECT_GPIO_NUM:1----->This your detect GPIO num 
hw_config.UIM[0].UIM_CARD_DETECT_GPIO_FUNC_SELECTION:0 
hw_config.UIM[0].UIM_CARD_DETECT_GPIO_DRV_STRENGTH: 2MA 
hw_config.UIM[0].UIM_CARD_DETECT_PULL_SETTING: No pull