Input: atmel_mxt_ts - report pressure information from the driver
Atmel mxt1386 touch controller has the touch pressure information so
let's report it to the user space.
[dtor@mail.ru: added ABS_RESSURE reporting for ST emulation.]
Signed-off-by: Yufeng Shen <miletus@chromium.org>
Acked-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index ae00604..f5d6685 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -244,6 +244,7 @@
int x;
int y;
int area;
+ int pressure;
};
/* Each client has this additional data */
@@ -536,6 +537,8 @@
finger[id].x);
input_report_abs(input_dev, ABS_MT_POSITION_Y,
finger[id].y);
+ input_report_abs(input_dev, ABS_MT_PRESSURE,
+ finger[id].pressure);
} else {
finger[id].status = 0;
}
@@ -546,6 +549,8 @@
if (status != MXT_RELEASE) {
input_report_abs(input_dev, ABS_X, finger[single_id].x);
input_report_abs(input_dev, ABS_Y, finger[single_id].y);
+ input_report_abs(input_dev,
+ ABS_PRESSURE, finger[single_id].pressure);
}
input_sync(input_dev);
@@ -560,6 +565,7 @@
int x;
int y;
int area;
+ int pressure;
/* Check the touch is present on the screen */
if (!(status & MXT_DETECT)) {
@@ -584,6 +590,7 @@
y = y >> 2;
area = message->message[4];
+ pressure = message->message[5];
dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id,
status & MXT_MOVE ? "moved" : "pressed",
@@ -594,6 +601,7 @@
finger[id].x = x;
finger[id].y = y;
finger[id].area = area;
+ finger[id].pressure = pressure;
mxt_input_report(data, id);
}
@@ -1116,6 +1124,8 @@
0, data->max_x, 0, 0);
input_set_abs_params(input_dev, ABS_Y,
0, data->max_y, 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE,
+ 0, 255, 0, 0);
/* For multi touch */
input_mt_init_slots(input_dev, MXT_MAX_FINGER);
@@ -1125,6 +1135,8 @@
0, data->max_x, 0, 0);
input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
0, data->max_y, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_PRESSURE,
+ 0, 255, 0, 0);
input_set_drvdata(input_dev, data);
i2c_set_clientdata(client, data);