屏参设置

基于 amlogic 学习

Android 分辨率调整 屏大小调整

meson_refb01_defconfig：该文件是进行编译的选择，有无包含该编译

board-8726-refbxx.c 表示该板的板级资源

board-8726-refbxx.h表示该板的板级资源的头文件

 

内核涉及分辨率的文件有

board-8726-refbxx.c        .lcd_max_width = 1024,

                                                      .lcd_max_height = 768,   //屏分辨率1024 * 768

 

board-8726-refbxx.h    #define OSD_PANEL_PIX                   (1024*768)

 

驱动文件kernel\drivers\amlogic\display\vout 

#define LCD_WIDTH       1024

#define LCD_HEIGHT      768

 

 

Make menuconfig

     Devicesdriver --->

           Amlogic driver à

                                     Amlogicdisplay driver--à

                                                        Amlogicosd module-à

                                                                                            (1024) Default OSD1 width                                                                                          

                                            (768) Default OSD1 height                                                                                          

                                           (1024) Default OSD1 virtual width                                                                                

                                           (1536) Default OSD1 virtual height 

 

 

Android 层：

Devices /amlogic/b01ref/set_display_mode.sh(android层的分辨率设置) panel设备

 

u-boot

aboard/amlogic /board_xxx/lcd.c 可以直接拷贝 kernel中的 display driver-lcd 驱动