when you init your touch driver,you should set some params
as below
input_set_abs_params(codec_ts_input, ABS_X, X_MIN, X_MAX, 0, 0);
input_set_abs_params(codec_ts_input, ABS_Y, Y_MIN, Y_MAX, 0, 0);
input_set_abs_params(codec_ts_input, ABS_PRESSURE, PRESSURE_MIN,
PRESSURE_MAX, 0, 0);
On Tue, Jan 20, 2009 at 4:36 PM, pramod <pramodkum...@gmail.com> wrote:
>
> hi all,
>
> We have ported android on the ARM9 based board. We are able to see the
> home page after booting android on target. But the touch screen is not
> working. The touch screen driver is modified to pass the of X,Y
> pressure as shown below.
>
> xtmp = (axis_table[2] + axis_table[0]*x + axis_table
> [1]*y )>>axis_table[6];
> ytmp = (axis_table[5] + axis_table[3]
> *x + axis_table[4]*y )>>axis_table[6];
>
> printk("x (xtmp)-> %d (%d)\t y(ytmp) -
> > %d (%d)\n p->%d\n",x,xtmp,y,ytmp,p);
>
>
> input_report_abs(d->idev, ABS_X,
> ytmp);
> input_report_abs(d->idev, ABS_Y,
> xtmp);
> input_report_abs(d->idev,
> ABS_PRESSURE, p);
> input_report_key(d->idev,BTN_TOUCH,1);
> input_sync(d->idev);
>
> ours is resistance based touchscreen with resoultion of 240*432.
>
> The pointer location application of the android does'nt recognise the
> touch screen inputs. The touch screen is calibrated using ts_calibrate
> of tslib. The max values for x and y is 4095.
>
> Currently the date and time bar scrolls down upon clicking on the
> screen, we are not able to lauch any of the applications.
>
> Can anyone please tell what needs to be done to correct the
> touchscreen issue.
>
> Thanks
>
> Pramod
>
>
>
> Qingzhan Zhang wrote:
> > in your touch driver ,you should set the x/y/pressure's MAX value and MIN
> > value,the android according to the MAX and MIN value to calculate your
> > inputing values
> >
> > On Thu, Jan 15, 2009 at 4:34 PM, vishal bhoj <vishalb...@gmail.com>
> wrote:
> >
> > > when i did a logcat i get
> > > Starting input on non-focused client
> > > com.android.internal.view.iinputmethodclient$stub$pr...@4)
> > > D/InputManagerService( 554):
> > > hide the small icon for the input method
> > > W/InputManagerService( 554):
> > > Ignoring focus gain of:
> > > android.view.inputmethod.inputmethodmanage...@435b54c0
> > >
> > >
> > >
> > > On Thu, Jan 15, 2009 at 3:31 AM, vishal bhoj <vishalb...@gmail.com>
> wrote:
> > >
> > >> hi,
> > >>
> > >> TOuch screen is not working for me on omapzoom. when i run pointer
> > >> location i don get any values there. when i touch only the top time &
> date
> > >> bar slides down and goes back. what has to be changed to get touch
> screen
> > >> working in android on omap3evm
> > >>
> > >>
> > >> On Tue, Jan 13, 2009 at 8:37 AM, Kai Wei <kai.wei...@gmail.com>
> wrote:
> > >>
> > >>>
> > >>> Hi,
> > >>> How can I get calibration with android? The value returned by driver
> > >>> seemed too big to be used directly.
> > >>>
> > >>> On Dec 5 2008, 3:30 am, Maxime Petazzoni <maxime.petazz...@gmail.com
> >
> > >>> wrote:
> > >>> > Hi,
> > >>> >
> > >>> > You need to invert the READ_X and READ_Y calls in drivers/input/
> > >>> > touchscreen/ads7846.c for the ts->read_x and ts->read_y values.
> This
> > >>> > is a well known OmapZoom issue with Android.
> > >>> >
> > >>> > - Maxime
> > >>> >
> > >>> > On Dec 4, 8:42 am, Manav Gautama <ma...@bandwidthcrunch.com>
> wrote:
> > >>> >
> > >>> > > Dear droidans,
> > >>> > > I have aads7846chip and the tslib working fine
> on
> > >>> a
> > >>> > > 2.6.27 kernel ported to my 2430 based board, with Xorg and tslib
> > >>> have
> > >>> > > got it to give fine calibration and behaviour. On using android i
> am
> > >>> > > getting inverted touch with reference being the X axis. Any tips
> on
> > >>> how
> > >>> > > to get it calibrated on android ?
> > >>> >
> > >>> > > Warm regards,
> > >>> > > Manav
> > >>> >
> > >>> > > bandwidthcrunch at gmail dot com
> > >>> >
> > >>> > >www.bandwidthcrunch.com
> > >>>
> > >>>
> > >>
> > >>
> > >> --
> > >> with regards vishal
> > >>
> > >
> > >
> > >
> > > --
> > > with regards vishal
> > >
> > > >
> > >
> >
>
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