How to use tslib calibration at i2c touch ft5x06 in Android 5.0

[warrenjan]

Hi all

my build environment

android 5.0

touch ic: ft5x06

imx6q.

i use boundary device  ft5x06 driver (linux-imx6/ft5x06_ts.c at boundary-imx_3.14.28_1.0.0_ga · boundarydevices/linux-imx6 · GitHub)) , and i  modify the dts just like

        ft5x06@38 {

         compatible = "ft5x06,ft5x06-touch";

         reg = <0x38>;

         interrupt-parent = <&gpio3>;

         interrupts = <17 2>;

         wakeup-gpios = <&gpio3 17 1>;

         };

Then the touch can work , but still some issue (the x,y position didn't mach to screen)

Any body can help me !!

like the movie

https://www.dropbox.com/s/fqja11fwlufb8s9/%E6%AA%94%E6%A1%88%202016-3-4%20%E4%B8%8A%E5%8D%8811%2049%...

[varunjeevangoud]

hey i have used this driver ..probing is not successful and i2c read and write not happening,how you solved this issue . I'm using 4.4.3 Android.

[gary_bisson · Accepted solution]

Hi Warren,

You have two choices to specify your screen resolution if the firmware doesn't report it properly:

- Give the resolution as a kernel boot argument:

ft5x06_ts.screenres=800,480

- Integrate our last patch to the driver which reads the resolution of fb0:

ft5x06_ts: set max_x/y to fb size if no parameter is provided · boundarydevices/linux-imx6@dfbfbdf ·...

Regards,

Gary

[warrenjan]

HI Gary

the resolution is correct (1024 *600).

It's the  same situation.when i leave the screen and move to  other position ,sometimes the circle didn't move with my finger.

like the movie.

Dropbox - 檔案 2016-3-15 上午1 33 43.mov

HI igor

the same problem with Tom ,The apk can't open!

BR

Warren

[gary_bisson]

Hi Warren,

In that case it seems our driver is not meant for this version of the controller you are using. Have you tried using the mainline edt-ft5x06 driver instead?

kernel/git/torvalds/linux.git - Linux kernel source tree

Regards,

Gary

[warrenjan]

HI  Bisson

The driver is correct for my controller. (Ft5606) it's for ft5x06_ts.c(boundary device source code)

i set Debug mode to read messages, I find Some strange errors. 

when my finger touch the screen and  leave the screen , the printHex message show below.

0000018260012affffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff....

ft5x06: buttons = 1, points[0].x = 608, points[0].y = 298

0000004260012affffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff....

ft5x06: buttons = 0, points[0].x = 608, points[0].y = 298

00000102fa0148ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff....

ft5x06: buttons = 1, points[0].x = 762, points[0].y = 328

00000182f90148ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff....

ft5x06: buttons = 1, points[0].x = 761, points[0].y = 328

00000182f90148ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff....

ft5x06: buttons = 1, points[0].x = 761, points[0].y = 328

00000182f90148ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff....

ft5x06: buttons = 1, points[0].x = 761, points[0].y = 328

00000042f90148ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff....

ft5x06: buttons = 0, points[0].x = -2131943424, points[0].y = 2

button=1 , meant  touch screen.

button=0 , meant  leave screen.

the Status  "buttons = 0, points[0].x = -2131943424, points[0].y = 2" will cause my touch circle didn't sync with my moving finger .

from 00/00/00/42/f9/01/48  ---> transfer to points[i].x / points[i].y  is wrong !!!

Did you have any idea ???

BR

Warren

[pengxingwei]

Hi, I come cross the same peoblem as you,my touch circle didn't sync with my moving finger .my touch circle didn't sync with my moving finger .How did you solve it at last? Thanks

[warrenjan]

HI  peng 

i used the other solution instead of  Ft5606 .

[pengxingwei]

Hi,

    Thanks youn ! my problem had solved!

[chaotom]

Hi ,I have the same problem, but when I install the apk on android 5.0 by igor. The apk can't open .

Like this video, please help me,Thank you!!

VIDEO0028.mp4 - Google Drive

[igorpadykov]

Hi warren

seems hardware works ok, then one can try native android app like:

http://appslollipop.com/Apps_Touch-sensitivity-calibration_Lollipop.html

Best regards

igor

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