* [PATCH v4] input: wacom - Pass touch resolution to clients through input_absinfo
@ 2011-01-25 19:38 Ping Cheng
2011-01-25 19:55 ` Henrik Rydberg
0 siblings, 1 reply; 2+ messages in thread
From: Ping Cheng @ 2011-01-25 19:38 UTC (permalink / raw)
To: linux-input; +Cc: dmitry.torokhov, rydberg, Ping Cheng, Ping Cheng
Fixed the workaround used for kernels older than 2.6.35.
This version added a funtion, wacom_calculate_touch_res, to calculate
touch resolutions. The word "touch" is needed since the routine does
not apply to pen tablets.
Signed-off-by: Ping Cheng <pingc@wacom.com>
---
drivers/input/tablet/wacom_wac.c | 21 +++++++++++++++++++--
1 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index f44c822..367fa82 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -1101,6 +1101,13 @@ void wacom_setup_device_quirks(struct wacom_features *features)
}
}
+static unsigned int wacom_calculate_touch_res(unsigned int logical_max,
+ unsigned int physical_max)
+{
+ /* Touch physical dimensions are in 100th of mm */
+ return (logical_max * 100) / physical_max;
+}
+
void wacom_setup_input_capabilities(struct input_dev *input_dev,
struct wacom_wac *wacom_wac)
{
@@ -1228,8 +1235,12 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
case TABLETPC:
if (features->device_type == BTN_TOOL_DOUBLETAP ||
features->device_type == BTN_TOOL_TRIPLETAP) {
- input_set_abs_params(input_dev, ABS_RX, 0, features->x_phy, 0, 0);
- input_set_abs_params(input_dev, ABS_RY, 0, features->y_phy, 0, 0);
+ input_abs_set_res(input_dev, ABS_X,
+ wacom_calculate_touch_res(features->x_max,
+ features->x_phy));
+ input_abs_set_res(input_dev, ABS_Y,
+ wacom_calculate_touch_res(features->y_max,
+ features->y_phy));
__set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
}
@@ -1272,6 +1283,12 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
input_set_abs_params(input_dev, ABS_MT_PRESSURE,
0, features->pressure_max,
features->pressure_fuzz, 0);
+ input_abs_set_res(input_dev, ABS_X,
+ wacom_calculate_touch_res(features->x_max,
+ features->x_phy));
+ input_abs_set_res(input_dev, ABS_Y,
+ wacom_calculate_touch_res(features->y_max,
+ features->y_phy));
} else if (features->device_type == BTN_TOOL_PEN) {
__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
__set_bit(BTN_TOOL_PEN, input_dev->keybit);
--
1.7.3.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v4] input: wacom - Pass touch resolution to clients through input_absinfo
2011-01-25 19:38 [PATCH v4] input: wacom - Pass touch resolution to clients through input_absinfo Ping Cheng
@ 2011-01-25 19:55 ` Henrik Rydberg
0 siblings, 0 replies; 2+ messages in thread
From: Henrik Rydberg @ 2011-01-25 19:55 UTC (permalink / raw)
To: Ping Cheng; +Cc: linux-input, dmitry.torokhov, Ping Cheng
On Tue, Jan 25, 2011 at 11:38:29AM -0800, Ping Cheng wrote:
> Fixed the workaround used for kernels older than 2.6.35.
>
> This version added a funtion, wacom_calculate_touch_res, to calculate
> touch resolutions. The word "touch" is needed since the routine does
> not apply to pen tablets.
>
> Signed-off-by: Ping Cheng <pingc@wacom.com>
> ---
The SOB area should still contain the original text, explaining the
reason for the patch... other than that, it all looks fine to me.
Thanks,
Henrik
^ permalink raw reply [flat|nested] 2+ messages in thread
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2011-01-25 19:55 ` Henrik Rydberg
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