diff mbox

[v2] Input: goodix - Fix touch coords on WinBook TW100 and TW700

Message ID 1437660808.2863.9.camel@hadess.net (mailing list archive)
State New, archived
Headers show

Commit Message

Bastien Nocera July 23, 2015, 2:13 p.m. UTC
The touchscreen on the WinBook TW100 and TW700 don't match the default
display, with 0,0 touches being reported when touching at the bottom
right of the screen.

  1280,800             0,800
         +-------------+
         |             |
         |             |
         |             |
         +-------------+
    1280,0             0,0

It's unfortunately impossible to detect this problem with data from the
DSDT, or other auxiliary metadata, so fallback to quirking this specific
model of tablet instead.

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
---
 drivers/input/touchscreen/goodix.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

Comments

Dmitry Torokhov July 23, 2015, 9:56 p.m. UTC | #1
Hi Bastien,

On Thu, Jul 23, 2015 at 04:13:28PM +0200, Bastien Nocera wrote:
> The touchscreen on the WinBook TW100 and TW700 don't match the default
> display, with 0,0 touches being reported when touching at the bottom
> right of the screen.
> 
>   1280,800             0,800
>          +-------------+
>          |             |
>          |             |
>          |             |
>          +-------------+
>     1280,0             0,0
> 
> It's unfortunately impossible to detect this problem with data from the
> DSDT, or other auxiliary metadata, so fallback to quirking this specific
> model of tablet instead.
> 
> Signed-off-by: Bastien Nocera <hadess@hadess.net>
> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
> ---
>  drivers/input/touchscreen/goodix.c | 31 +++++++++++++++++++++++++++++++
>  1 file changed, 31 insertions(+)
> 
> diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
> index b4d12e2..3722806 100644
> --- a/drivers/input/touchscreen/goodix.c
> +++ b/drivers/input/touchscreen/goodix.c
> @@ -15,6 +15,7 @@
>   */
>  
>  #include <linux/kernel.h>
> +#include <linux/dmi.h>
>  #include <linux/i2c.h>
>  #include <linux/input.h>
>  #include <linux/input/mt.h>
> @@ -34,6 +35,7 @@ struct goodix_ts_data {
>  	int abs_y_max;
>  	unsigned int max_touch_num;
>  	unsigned int int_trigger_type;
> +	bool rotated_screen;
>  };
>  
>  #define GOODIX_MAX_HEIGHT		4096
> @@ -60,6 +62,24 @@ static const unsigned long goodix_irq_flags[] = {
>  	IRQ_TYPE_LEVEL_HIGH,
>  };
>  
> +/* Those tablets have their coords origin at the bottom right
> + * of the tablet, as if rotated 180 degrees */

/*
 * Multi
 * line
 * comment
 */

please.

> +static const struct dmi_system_id rotated_screen[] = {

#if defined(CONFIG_DMI) && defined(CONFIG_X86)

> +	{
> +		.ident = "WinBook TW100",
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "WinBook"),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "TW100")
> +		},
> +		.ident = "WinBook TW700",
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "WinBook"),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "TW100")
> +		},

This does not do what you want it to do... First of all you probably
wanted TW700 on the second entry, second you need separate them into 2
entries into array (right now it is one still).

Thank you.
Bastien Nocera July 24, 2015, 11:13 a.m. UTC | #2
On Thu, 2015-07-23 at 14:56 -0700, Dmitry Torokhov wrote:
> Hi Bastien,
> 
> On Thu, Jul 23, 2015 at 04:13:28PM +0200, Bastien Nocera wrote:
> > The touchscreen on the WinBook TW100 and TW700 don't match the 
> > default
> > display, with 0,0 touches being reported when touching at the 
> > bottom
> > right of the screen.
> > 
> >   1280,800             0,800
> >          +-------------+
> >          |             |
> >          |             |
> >          |             |
> >          +-------------+
> >     1280,0             0,0
> > 
> > It's unfortunately impossible to detect this problem with data from 
> > the
> > DSDT, or other auxiliary metadata, so fallback to quirking this 
> > specific
> > model of tablet instead.
> > 
> > Signed-off-by: Bastien Nocera <hadess@hadess.net>
> > Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
> > ---
> >  drivers/input/touchscreen/goodix.c | 31 
> > +++++++++++++++++++++++++++++++
> >  1 file changed, 31 insertions(+)
> > 
> > diff --git a/drivers/input/touchscreen/goodix.c 
> > b/drivers/input/touchscreen/goodix.c
> > index b4d12e2..3722806 100644
> > --- a/drivers/input/touchscreen/goodix.c
> > +++ b/drivers/input/touchscreen/goodix.c
> > @@ -15,6 +15,7 @@
> >   */
> >  
> >  #include <linux/kernel.h>
> > +#include <linux/dmi.h>
> >  #include <linux/i2c.h>
> >  #include <linux/input.h>
> >  #include <linux/input/mt.h>
> > @@ -34,6 +35,7 @@ struct goodix_ts_data {
> >  	int abs_y_max;
> >  	unsigned int max_touch_num;
> >  	unsigned int int_trigger_type;
> > +	bool rotated_screen;
> >  };
> >  
> >  #define GOODIX_MAX_HEIGHT		4096
> > @@ -60,6 +62,24 @@ static const unsigned long goodix_irq_flags[] = 
> > {
> >  	IRQ_TYPE_LEVEL_HIGH,
> >  };
> >  
> > +/* Those tablets have their coords origin at the bottom right
> > + * of the tablet, as if rotated 180 degrees */
> 
> /*
>  * Multi
>  * line
>  * comment
>  */
> 
> please.

Would be good if checkpatch could check for that, or is it a personal
request?

> > +static const struct dmi_system_id rotated_screen[] = {
> 
> #if defined(CONFIG_DMI) && defined(CONFIG_X86)

Sure.

> > +	{
> > +		.ident = "WinBook TW100",
> > +		.matches = {
> > +			DMI_MATCH(DMI_SYS_VENDOR, "WinBook"),
> > +			DMI_MATCH(DMI_PRODUCT_NAME, "TW100")
> > +		},
> > +		.ident = "WinBook TW700",
> > +		.matches = {
> > +			DMI_MATCH(DMI_SYS_VENDOR, "WinBook"),
> > +			DMI_MATCH(DMI_PRODUCT_NAME, "TW100")
> > +		},
> 
> This does not do what you want it to do... First of all you probably
> wanted TW700 on the second entry, second you need separate them into 
> 2
> entries into array (right now it is one still).


Duh!

Thanks, coming in v3 shortly.
--
To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Dmitry Torokhov July 24, 2015, 4:08 p.m. UTC | #3
On Fri, Jul 24, 2015 at 01:13:24PM +0200, Bastien Nocera wrote:
> On Thu, 2015-07-23 at 14:56 -0700, Dmitry Torokhov wrote:
> > Hi Bastien,
> > 
> > On Thu, Jul 23, 2015 at 04:13:28PM +0200, Bastien Nocera wrote:
> > > The touchscreen on the WinBook TW100 and TW700 don't match the 
> > > default
> > > display, with 0,0 touches being reported when touching at the 
> > > bottom
> > > right of the screen.
> > > 
> > >   1280,800             0,800
> > >          +-------------+
> > >          |             |
> > >          |             |
> > >          |             |
> > >          +-------------+
> > >     1280,0             0,0
> > > 
> > > It's unfortunately impossible to detect this problem with data from 
> > > the
> > > DSDT, or other auxiliary metadata, so fallback to quirking this 
> > > specific
> > > model of tablet instead.
> > > 
> > > Signed-off-by: Bastien Nocera <hadess@hadess.net>
> > > Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
> > > ---
> > >  drivers/input/touchscreen/goodix.c | 31 
> > > +++++++++++++++++++++++++++++++
> > >  1 file changed, 31 insertions(+)
> > > 
> > > diff --git a/drivers/input/touchscreen/goodix.c 
> > > b/drivers/input/touchscreen/goodix.c
> > > index b4d12e2..3722806 100644
> > > --- a/drivers/input/touchscreen/goodix.c
> > > +++ b/drivers/input/touchscreen/goodix.c
> > > @@ -15,6 +15,7 @@
> > >   */
> > >  
> > >  #include <linux/kernel.h>
> > > +#include <linux/dmi.h>
> > >  #include <linux/i2c.h>
> > >  #include <linux/input.h>
> > >  #include <linux/input/mt.h>
> > > @@ -34,6 +35,7 @@ struct goodix_ts_data {
> > >  	int abs_y_max;
> > >  	unsigned int max_touch_num;
> > >  	unsigned int int_trigger_type;
> > > +	bool rotated_screen;
> > >  };
> > >  
> > >  #define GOODIX_MAX_HEIGHT		4096
> > > @@ -60,6 +62,24 @@ static const unsigned long goodix_irq_flags[] = 
> > > {
> > >  	IRQ_TYPE_LEVEL_HIGH,
> > >  };
> > >  
> > > +/* Those tablets have their coords origin at the bottom right
> > > + * of the tablet, as if rotated 180 degrees */
> > 
> > /*
> >  * Multi
> >  * line
> >  * comment
> >  */
> > 
> > please.
> 
> Would be good if checkpatch could check for that, or is it a personal
> request?

CodingStyle chapter 8.

Thanks.
Bastien Nocera July 24, 2015, 4:09 p.m. UTC | #4
On Fri, 2015-07-24 at 09:08 -0700, Dmitry Torokhov wrote:
> On Fri, Jul 24, 2015 at 01:13:24PM +0200, Bastien Nocera wrote:
> > On Thu, 2015-07-23 at 14:56 -0700, Dmitry Torokhov wrote:
> > > Hi Bastien,
> > > 
> > > On Thu, Jul 23, 2015 at 04:13:28PM +0200, Bastien Nocera wrote:
> > > > The touchscreen on the WinBook TW100 and TW700 don't match the 
> > > > default
> > > > display, with 0,0 touches being reported when touching at the 
> > > > bottom
> > > > right of the screen.
> > > > 
> > > >   1280,800             0,800
> > > >          +-------------+
> > > >          |             |
> > > >          |             |
> > > >          |             |
> > > >          +-------------+
> > > >     1280,0             0,0
> > > > 
> > > > It's unfortunately impossible to detect this problem with data 
> > > > from 
> > > > the
> > > > DSDT, or other auxiliary metadata, so fallback to quirking this 
> > > > 
> > > > specific
> > > > model of tablet instead.
> > > > 
> > > > Signed-off-by: Bastien Nocera <hadess@hadess.net>
> > > > Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
> > > > ---
> > > >  drivers/input/touchscreen/goodix.c | 31 
> > > > +++++++++++++++++++++++++++++++
> > > >  1 file changed, 31 insertions(+)
> > > > 
> > > > diff --git a/drivers/input/touchscreen/goodix.c 
> > > > b/drivers/input/touchscreen/goodix.c
> > > > index b4d12e2..3722806 100644
> > > > --- a/drivers/input/touchscreen/goodix.c
> > > > +++ b/drivers/input/touchscreen/goodix.c
> > > > @@ -15,6 +15,7 @@
> > > >   */
> > > >  
> > > >  #include <linux/kernel.h>
> > > > +#include <linux/dmi.h>
> > > >  #include <linux/i2c.h>
> > > >  #include <linux/input.h>
> > > >  #include <linux/input/mt.h>
> > > > @@ -34,6 +35,7 @@ struct goodix_ts_data {
> > > >  	int abs_y_max;
> > > >  	unsigned int max_touch_num;
> > > >  	unsigned int int_trigger_type;
> > > > +	bool rotated_screen;
> > > >  };
> > > >  
> > > >  #define GOODIX_MAX_HEIGHT		4096
> > > > @@ -60,6 +62,24 @@ static const unsigned long 
> > > > goodix_irq_flags[] = 
> > > > {
> > > >  	IRQ_TYPE_LEVEL_HIGH,
> > > >  };
> > > >  
> > > > +/* Those tablets have their coords origin at the bottom right
> > > > + * of the tablet, as if rotated 180 degrees */
> > > 
> > > /*
> > >  * Multi
> > >  * line
> > >  * comment
> > >  */
> > > 
> > > please.
> > 
> > Would be good if checkpatch could check for that, or is it a 
> > personal
> > request?
> 
> CodingStyle chapter 8.


OK, thanks for the notice :)
--
To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index b4d12e2..3722806 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -15,6 +15,7 @@ 
  */
 
 #include <linux/kernel.h>
+#include <linux/dmi.h>
 #include <linux/i2c.h>
 #include <linux/input.h>
 #include <linux/input/mt.h>
@@ -34,6 +35,7 @@  struct goodix_ts_data {
 	int abs_y_max;
 	unsigned int max_touch_num;
 	unsigned int int_trigger_type;
+	bool rotated_screen;
 };
 
 #define GOODIX_MAX_HEIGHT		4096
@@ -60,6 +62,24 @@  static const unsigned long goodix_irq_flags[] = {
 	IRQ_TYPE_LEVEL_HIGH,
 };
 
+/* Those tablets have their coords origin at the bottom right
+ * of the tablet, as if rotated 180 degrees */
+static const struct dmi_system_id rotated_screen[] = {
+	{
+		.ident = "WinBook TW100",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "WinBook"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "TW100")
+		},
+		.ident = "WinBook TW700",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "WinBook"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "TW100")
+		},
+	},
+	{}
+};
+
 /**
  * goodix_i2c_read - read data from a register of the i2c slave device.
  *
@@ -129,6 +149,11 @@  static void goodix_ts_report_touch(struct goodix_ts_data *ts, u8 *coor_data)
 	int input_y = get_unaligned_le16(&coor_data[3]);
 	int input_w = get_unaligned_le16(&coor_data[5]);
 
+	if (ts->rotated_screen) {
+		input_x = ts->abs_x_max - input_x;
+		input_y = ts->abs_y_max - input_y;
+	}
+
 	input_mt_slot(ts->input_dev, id);
 	input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);
 	input_report_abs(ts->input_dev, ABS_MT_POSITION_X, input_x);
@@ -223,6 +248,12 @@  static void goodix_read_config(struct goodix_ts_data *ts)
 		ts->abs_y_max = GOODIX_MAX_HEIGHT;
 		ts->max_touch_num = GOODIX_MAX_CONTACTS;
 	}
+
+	ts->rotated_screen = dmi_check_system(rotated_screen);
+	if (ts->rotated_screen) {
+		dev_dbg(&ts->client->dev,
+			 "Applying '180 degrees rotated screen' quirk\n");
+	}
 }
 
 /**