http://blog.csdn.net/ouo555/article/details/44806837
1.屏幕显示顺时针旋转90度
lk 横屏logo,顺时针旋转90度显示修改
bootable/bootloader/lk/project/len6735_65u_vo.mk
BOOT_LOGO = wxganl
MTK_LCM_PHYSICAL_ROTATION = 90
framebuffer顺时针旋转90度的修改:
device/lentek/len6735_65u_vo/ProjectConfig.mk
MTK_LCM_PHYSICAL_ROTATION =
2.触摸屏上报坐标映射
由于LCD显示旋转了90度,对应的触摸屏上报坐标的也需要重新进行映射:
sudo subl ./kernel-3.10/drivers/input/touchscreen/mediatek/GT9XX/focaltech_core.c中修改static int fts_report_value(struct ts_event *data)
input_report_abs(tpd->dev, ABS_MT_POSITION_X, data->au16_x[i]);//delete by dh
input_report_abs(tpd->dev, ABS_MT_POSITION_Y, data->au16_y[i]);//delete by dh
touchs |= BIT(data->au8_finger_id[i]);
data->touchs |= BIT(data->au8_finger_id[i]);
3.重力传感器方向修改
由于屏幕默认显示方向逆时针旋转90度,默认的重力传感器的方向也需要对应修改:kernel-3.10/drivers/misc/mediatek/mach/mt6735/len6735_65u_vo/accelerometer/mc3xxx_auto/mc3xxx_cust_acc.c
static struct acc_hw mc3xxx_cust_acc_hw = {
.i2c_num = ,
//.direction = 4,
.direction = ,
.power_id = MT65XX_POWER_NONE, /*!< LDO is not used */
.power_vol= VOL_DEFAULT, /*!< LDO is not used */
.firlen = , //old value 16 /*!< don't enable low pass fileter */
.is_batch_supported = false,
};
4.默认屏幕方向设置
进入framework/base/services/core/java/com/android/server/wm/WindowMangerService.java
修改int mRotation = ;为：
int mRotation = ;
5、开机动画显示半屏的原因，也旋转90度
修改frameworks/native/services/surfaceflinger/DisplayDevice.cpp
setProjection(DisplayState::eOrientation90, mViewport, mFrame);
6.编译成功刷入系统会出现开机动画部分只显示3/4解决方案如下：
进入framework/base/cmds/bootanimation/BootAnimation.cpp
修改status_t BootAnimation::readyToRun函数中的
spcontrol=session()- >createsurface(String8("BootAnimation"),dinfo.w,dinfo.h.PIXEL_FORMAT_RGB_565);
为：
spcontrol=session()- >createsurface(String8"BootAnimation"),dinfo.h,dinfo.w.PIXEL_FORMAT_RGB_565);
进入/framework/native/services/surfaceflinger/DisplayDevice.cpp
修改函数 void DisplayDevice::setProjection(intorientation, conts Rect&newViewport,constRect&newFrame)中
if(!frame.isValid()){
frame = Rect(w,h);为：
frame = Rect(h,w);
}
在Transform R; 下面添加
orientation = DisplayState::eorientation90;
进入/framework/native/services/surfaceflinger/SurfaceFlinger.cpp
修改函数voidSurfaceFlinger::onInitializeDisplay()中：
d.orientation = DisplayState::eOrientationDefault ;为：
d.orientation=DisplayState::eOrientatio90;
7.开机动画显示任然竖屏一会儿的问题
进入PhoneWindowManager.java文件 5993行修改默认返回值
public class PhoneWindowManager implements WindowManagerPolicy {
if (preferredRotation >= ) {
return preferredRotation;
}
- return Surface.ROTATION_0;
+ return Surface.ROTATION_90;
}