The touchscreen driver s3c2410_ts.c doesn't work well when using
the tslib, an abstraction layer for touchscreen panel events.
Tslib needs ABS_X ABS_Y and ABS_PRESSURE events to report, but only
the former two the driver can provide.
So this patch fixes the problem.
Signed-off-by: Wu DaoGuang <[email protected]>
---
drivers/input/touchscreen/s3c2410_ts.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index 8feb7f3..0cf4f12 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -126,6 +126,7 @@ static void touch_timer_fire(unsigned long data)
input_report_abs(ts.input, ABS_Y, ts.yp);
input_report_key(ts.input, BTN_TOUCH, 1);
+ input_report_abs(ts.input, ABS_PRESSURE, 1);
input_sync(ts.input);
ts.xp = 0;
@@ -140,6 +141,7 @@ static void touch_timer_fire(unsigned long data)
ts.count = 0;
input_report_key(ts.input, BTN_TOUCH, 0);
+ input_report_abs(ts.input, ABS_PRESSURE, 0);
input_sync(ts.input);
writel(WAIT4INT | INT_DOWN, ts.io + S3C2410_ADCTSC);
@@ -318,7 +320,7 @@ static int __devinit s3c2410ts_probe(struct platform_device *pdev)
ts.input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
input_set_abs_params(ts.input, ABS_X, 0, 0x3FF, 0, 0);
input_set_abs_params(ts.input, ABS_Y, 0, 0x3FF, 0, 0);
-
+ input_set_abs_params(ts.input, ABS_PRESSURE, 0, 1, 0, 0);
ts.input->name = "S3C24XX TouchScreen";
ts.input->id.bustype = BUS_HOST;
ts.input->id.vendor = 0xDEAD;
--
1.7.1
On 2011-06-24 오전 11:15, Wu DaoGuang wrote:
> The touchscreen driver s3c2410_ts.c doesn't work well when using
> the tslib, an abstraction layer for touchscreen panel events.
> Tslib needs ABS_X ABS_Y and ABS_PRESSURE events to report, but only
> the former two the driver can provide.
>
> So this patch fixes the problem.
>
> Signed-off-by: Wu DaoGuang<[email protected]>
> ---
> drivers/input/touchscreen/s3c2410_ts.c | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
> index 8feb7f3..0cf4f12 100644
> --- a/drivers/input/touchscreen/s3c2410_ts.c
> +++ b/drivers/input/touchscreen/s3c2410_ts.c
> @@ -126,6 +126,7 @@ static void touch_timer_fire(unsigned long data)
> input_report_abs(ts.input, ABS_Y, ts.yp);
>
> input_report_key(ts.input, BTN_TOUCH, 1);
> + input_report_abs(ts.input, ABS_PRESSURE, 1);
> input_sync(ts.input);
>
> ts.xp = 0;
> @@ -140,6 +141,7 @@ static void touch_timer_fire(unsigned long data)
> ts.count = 0;
>
> input_report_key(ts.input, BTN_TOUCH, 0);
> + input_report_abs(ts.input, ABS_PRESSURE, 0);
> input_sync(ts.input);
>
> writel(WAIT4INT | INT_DOWN, ts.io + S3C2410_ADCTSC);
> @@ -318,7 +320,7 @@ static int __devinit s3c2410ts_probe(struct platform_device *pdev)
> ts.input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
> input_set_abs_params(ts.input, ABS_X, 0, 0x3FF, 0, 0);
> input_set_abs_params(ts.input, ABS_Y, 0, 0x3FF, 0, 0);
> -
> + input_set_abs_params(ts.input, ABS_PRESSURE, 0, 1, 0, 0);
> ts.input->name = "S3C24XX TouchScreen";
> ts.input->id.bustype = BUS_HOST;
> ts.input->id.vendor = 0xDEAD;
This is already NAKed patch.
Please refer https://lkml.org/lkml/2010/11/9/270
Thanks.
On Fri, Jun 24, 2011 at 10:15:38AM +0800, Wu DaoGuang wrote:
> The touchscreen driver s3c2410_ts.c doesn't work well when using
> the tslib, an abstraction layer for touchscreen panel events.
> Tslib needs ABS_X ABS_Y and ABS_PRESSURE events to report, but only
> the former two the driver can provide.
It seems much more sane to fix this in tslib, the kernel is not actually
reporting pressure meaningfully here and there's already BTN_TOUCH to
report if the pen is down.
2011/6/24 Mark Brown <[email protected]>:
> On Fri, Jun 24, 2011 at 10:15:38AM +0800, Wu DaoGuang wrote:
>> The touchscreen driver s3c2410_ts.c doesn't work well when using
>> the tslib, an abstraction layer for touchscreen panel events.
>> Tslib needs ABS_X ABS_Y and ABS_PRESSURE events to report, but only
>> the former two the driver can provide.
>
> It seems much more sane to fix this in tslib, the kernel is not actually
> reporting pressure meaningfully here and there's already BTN_TOUCH to
> report if the pen is down.
>
yeah,I will try to fix it in tslib.
Thanks a lot.
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of daoguang
> wu
> Sent: 2011??6??27?? 10:15
> To: Mark Brown
> Cc: [email protected]; [email protected];
> [email protected]; [email protected];
> [email protected]; [email protected];
> [email protected]
> Subject: Re: [PATCH] INPUT:Add ABS_PRESSURE input event support for
> touchscreen driver
>
> 2011/6/24 Mark Brown <[email protected]>:
> > On Fri, Jun 24, 2011 at 10:15:38AM +0800, Wu DaoGuang wrote:
> >> The touchscreen driver s3c2410_ts.c doesn't work well when using
> >> the tslib, an abstraction layer for touchscreen panel events.
> >> Tslib needs ABS_X ABS_Y and ABS_PRESSURE events to report, but only
> >> the former two the driver can provide.
> >
> > It seems much more sane to fix this in tslib, the kernel is not actually
> > reporting pressure meaningfully here and there's already BTN_TOUCH to
> > report if the pen is down.
> >
> yeah,I will try to fix it in tslib.
You may send a patch to tslib.
> Thanks a lot.
>
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2011/6/27 Dmitry Torokhov <[email protected]>:
>
>
> Baohua Song <[email protected]> wrote:
>
>>
>>
>>> -----Original Message-----
>>> From: [email protected]
>>> [mailto:[email protected]] On Behalf Of
>>daoguang
>>> wu
>>> Sent: 2011??6??27?? 10:15
>>> To: Mark Brown
>>> Cc: [email protected]; [email protected];
>>> [email protected]; [email protected];
>>> [email protected]; [email protected];
>>> [email protected]
>>> Subject: Re: [PATCH] INPUT:Add ABS_PRESSURE input event support for
>>> touchscreen driver
>>>
>>> 2011/6/24 Mark Brown <[email protected]>:
>>> > On Fri, Jun 24, 2011 at 10:15:38AM +0800, Wu DaoGuang wrote:
>>> >> The touchscreen driver s3c2410_ts.c doesn't work well when using
>>> >> the tslib, an abstraction layer for touchscreen panel events.
>>> >> Tslib needs ABS_X ABS_Y and ABS_PRESSURE events to report, but
>>only
>>> >> the former two the driver can provide.
>>> >
>>> > It seems much more sane to fix this in tslib, the kernel is not
>>actually
>>> > reporting pressure meaningfully here and there's already BTN_TOUCH
>>to
>>> > report if the pen is down.
>>> >
>>> yeah,I will try to fix it in tslib.
>>
>>You may send a patch to tslib.
>>
>
> This has already been fixed in tslib a couple years ago. I'm not sure if a
> new version was cut or not.
> --
> Dmitry
I try the latest tslib ,and find there is no such problem and the
latest version of tslib can be downloaded from
git://github.com/kergoth/tslib.git.
Thanks a lot.