Difference between revisions of "IoTGateway/Features/Linux/Display"

Revision as of 05:30, 17 August 2016

Single Channel LVDS Panel

96LEDK-C070WV50NA1

The following operations are performed with RSB-4210 (i.MX5).

• u-boot

specify boot logo

showlogo=mmc read 0 0x70200000 0x0 0x1; fatload mmc 0:1 0x76000000 ulogo.bmp; bmp d 0x76000000

mmc read 1 0x70200000 0x0 0x1; fatload mmc 1:1 0x76000000 ulogo.bmp; bmp d 0x76000000

specify the variable bootargs_base as below:

setenv bootargs_base 'setenv bootargs console=ttymxc0,115200 ldb=single,di=1,ch0_map=JEIDA,ch1_map=JEIDA video=mxcdi0fb:RGB24,AUO- G070VW01 di1_primary,bpp=24'

IDK-1115R-40XGC1E

• u-boot

specify the variable bootargs_base as below:

setenv bootargs_base 'setenv bootargs console=ttymxc0,115200 enable_wait_mode=off video=mxcfb0:dev=ldb,1024x768M@60,if=RGB24 ldb=sin0'

Dual Channel LVDS Panel

Calculating Timings parameter of LVDS Panel SOP OS: Yocto 1.8 Modify imx6qdl-advantech.dtsi Step1: In ldb parameter, add parameter --> split-mode; /* dual-channel setting *

  &ldb {
       ext_ref = "true";
       status = "okay";
       split-mode; /* dual-channel setting */

Step2: In lvds-channel@1, change [crtc = "ipu1-di1";] to [crtc = "ipu1-di0";]

       lvds-channel@1 {
               fsl,data-mapping = "spwg";
               fsl,data-width = <24>;
               /* crtc = "ipu1-di1"; */
               crtc = "ipu1-di0"; /* dual-channel setting */
               status = "okay";

Step3: In display-timings native-mode = <&timing0>, Delete the other panel parameter.Add" LTI370LN01 " Parameter

        //Dual channel panel
                       timing0: lti370ln01 {
                               clock-frequency = <148500000>;
                               hactive = <1920>;
                               vactive = <544>;
                               hback-porch = <70>;
                               hfront-porch = <70>;
                               vback-porch = <200>;
                               vfront-porch = <200>;
                               hsync-len = <140>;
                               vsync-len = <185>;
                       };

Calculating Timings parameter Check your panel Timing table Example : samsung 37 inch panel

(1)clock-frequency --> Clock (MHz)

(2)hactive --> Horizontal Active Display Period

(3)vactive --> Vertical Active Display Period

(4)hback-porch + hfront-porch + hsync-len (Total) = Blanking = Horizontal Total - Horizontal Active Display Period

(5)vback-porch + vfront-porch + vsync-len (Total) = Blanking = Vertical Total - Vertical Active Display Period

Touchscreen Panel

E21D03U-C01-04 Irtouch-Dualtouch

IRTOUCH panel [Android 4.4]

 (1) Download IRTOUCH driver  (Irtouch-dualtouch-package-android-v14.2.0.0002.7z)
 (2) Download IRTOUCH SWAP mode tool (Swapmode.7z)
 (3) Swap mode
     You need to check and swap IRTOUCH 0X80.
     Please install SWAP mode tool in win7.
     Run SwapModeTool.exe and choose IRTOUCH 0X80.  
 (4) Installing the IRTOUCH Dual-touch Touchscreen Driver
     (a) irtouchusb-dt.c locate to kernel_imx/driver/input/touchscreen;
     (b) modify Makefile in kernel_imx/driver/input/touchscreen
         add:  "obj-$(CONFIG_TOUCHSCREEN_USBIRTOUCH_DT)	+= irtouchusb-dt.o"
     (c) modify Kconfig in kernel_imx/driver/input/touchscreen
         add:
         config TOUCHSCREEN_USBIRTOUCH_DT
                tristate "IRTOUCH USB Touchscreen Driver For single point"
                depends on USB_ARCH_HAS_HCD
                select USB
                help
                  Say Y here if you have a IRTOUCH based touchscreen
                  controller.
                  If unsure, say N.
                  To compile this driver as a module, choose M here: the
                  module will be called irtouch.
     (d)  You can make menuconfig select TOUCHSCREEN_USBIRTOUCH_DT and build kernel 
          Modify defconfig CONFIG_TOUCHSCREEN_USBIRTOUCH_DT=y
          example : imx6_rsb4410_android_kk44_defconfig
     (e)  Add one line to Android file system's ueventd.rc: 
          File path : device/fsl/imx6/etc/ueventd.freescale.rc  
          /dev/irtouch      0666   root    root
     (f)  Copy "Vendor_6615_Product_0081.idc" and "Vendor_6615_Product_0080.idc" file to the Android file system's /usr/idc directory. 
 (5)  Calibration the Touchscreen
         Install CalibrationTools.apk and run "CalibrationTools" to start calibrate touchscreen. 
         package name:com.irtouch.android.calibration    
         class name:  CalibrationToolsActivity

eGTouch touch panel [Android 4.2 ~ Android 4.4]

 (1) Add "eGalaxCalibrator" PRODUCK PACKAGES in device/fsl/imx6/iMX6.mk
 (2) Add eGtouch file path in device/fsl/imx6/iMX6.mk
     device/fsl/common/input/eGTouch_v2.5.2320.A/eGalaxTouch_VirtualDevice.idc:system/usr/idc/eGalaxTouch_VirtualDevice.idc \
     device/fsl/common/input/eGTouch_v2.5.2320.A/eGTouchA.ini:data/eGTouchA.ini \
     device/fsl/common/input/eGTouch_v2.5.2320.A/eGTouchD:system/bin/eGTouchD \
 (3) Add eGtouch idc and ini file in device/fsl/imx6/BoardConfigCommon.mK
     BOARD_USERDATAIMAGE_PARTITION_SIZE := 128M
     device/fsl/common/input/eGTouch_v2.5.2320.A/eGTouchA.ini
     device/fsl/common/input/eGTouch_v2.5.2320.A/eGTouchD
     device/fsl/common/input/eGTouch_v2.5.2320.A/eGalaxTouch_VirtualDevice.idc
 (4) Add service about eGTouch in device/fsl/rsb_4410/init.rc
      service eGTouchD /system/bin/eGTouchD
        class main
        user root
        group root
        oneshot      [Android 4.2 and 4.4 MP version is include eGTouch function]

IDK-1105R-50VGA1E

The following operations are performed using Linux BSP 4410LBV2080.

• u-boot

apparently specify LDB-VGA in video item contained in the variable bootargs_base

setenv bootargs_base 'setenv bootargs console=ttymxc0,115200 enable_wait_mode=off video=mxcfb0:dev=ldb,LDB-VGA,if=RGB666'

• linux kernel

in drivers/video/mxc/ldb.c, insert the following lines into static struct struct fb_videomode ldb_modefb[] (or modify the exist element contained "LDB-VGA") :

 {
 "LDB-VGA", 60, 640, 480, 39722,
 50, 80,
 24, 18,
 30, 10,
 0,
 FB_VMODE_NONINTERLACED,
 FB_MODE_IS_DETAILED,},

IDK-1107WR-40WVA1E

Linux

The following operations are performed with RSB-4410(4410LBV2080 and eGTouch_v2.5.3810.L-ma.zip)

• u-boot

specify the variable bootargs_base as below:

setenv bootargs_base 'setenv bootargs console=ttymxc0,115200 enable_wait_mode=off video_mode=extension video=mxcfb0:dev=ldb,800x480M@60,if=RGB666,bpp=32 ldb=sin0'

• linux kernel source

1. drivers/input/evdev.c

   

2. drivers/input/mousedev.c

   

3. drivers/input/joydev.c

   

• linux kernel config

selection

deselection

• root filesystem

add

/usr/local/eGTouchARMnonX

/etc/eGTouchL.ini

update

/etc/rc.d/rc.local

Android

The following operations are performed with RSB-4410(4410ABV1080 and eGTouch_v2.5.2320.A-all.zip)

• u-boot

specify the variable bootargs_base as below:

setenv bootargs 'console=ttymxc0,115200 androidboot.console=ttymxc0 vmalloc=400M init=/init video=mxcfb0:dev=ldb,800x480M@60,if=RGB666,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off fbmem=28M androidboot.hardware=freescale'

• linux kernel config

selection

• root filesystem contained in BSP

android/device/fsl/rsb_4410/init.rc

• eGalaxCalibrator

HOWTOs

How to get the current display mode

# cat /sys/class/graphics/fb0/mode
U:1920x1080p-60

How to get the supported display modes

# cat /sys/class/graphics/fb0/modes
U:1280x720p-120
U:1280x720p-100
U:1920x1080p-30
U:1920x1080p-25
U:1920x1080p-24
U:1920x1080p-50
U:1440x576p-50
U:1440x576p-50
U:1440x288p-50
U:1440x288p-50
U:1280x720p-50
U:720x576p-50
U:720x576p-50
U:1920x1080p-60
U:1440x480p-60
U:1440x480p-60
U:1440x240p-60
U:1440x240p-60
U:1280x720p-60
U:720x480p-60
U:720x480p-60
U:640x480p-60

How to get the monitor's EDID

# i2cdump -f -y -r 0x00-0x7F 2 0x50
No size specified (using byte-data access)
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 00 ff ff ff ff ff ff 00 5a 63 28 0e 01 01 01 01    ........Zc(?????
10: 22 16 01 03 08 30 1b 78 2e e6 75 a4 56 4f 9e 27    "????0?x.?u?VO?'
20: 0f 50 54 bf ef 80 b3 00 a9 40 95 00 81 80 81 40    ?PT????.?@?.???@
30: 81 0f 81 00 71 4f 02 3a 80 18 71 38 2d 40 58 2c    ???.qO?:??q8-@X,
40: 45 00 dd 0c 11 00 00 1e 00 00 00 ff 00 53 44 44    E.???..?.....SDD
50: 31 32 33 34 41 31 33 37 36 0a 00 00 00 fd 00 32    1234A1376?...?.2
60: 4b 18 52 11 00 0a 20 20 20 20 20 20 00 00 00 fc    K?R?.?      ...?
70: 00 56 41 32 32 34 38 20 53 45 52 49 45 53 00 34    .VA2248 SERIES.4

How to control the screen blanking

to blank the primary display

# echo 1 > /sys/class/graphics/fb0/blank

to unblank the primary display

# echo 0 > /sys/class/graphics/fb0/blank

to set auto-blanking timeout seconds
The default linux framebuffer support will blank a console after 600 seconds of no activity.

kernel space

specify kernel parameter 'consoleblank=<n>' (where <n> means timeout seconds) in u-boot's parameter, bootargs_base

user space

use the command, setterm