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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>
This commit is contained in:
Yufeng Shen 2011-08-16 00:40:54 -07:00 committed by Dmitry Torokhov
parent c331eb580a
commit 28ac293363
1 changed files with 12 additions and 0 deletions
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12
drivers/input/touchscreen/atmel_mxt_ts.c
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@ -244,6 +244,7 @@ struct mxt_finger {
int x;
int y;
int area;
int pressure;
};
/* Each client has this additional data */
@ -536,6 +537,8 @@ static void mxt_input_report(struct mxt_data *data, int single_id)
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 @@ static void mxt_input_report(struct mxt_data *data, int single_id)
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 @@ static void mxt_input_touchevent(struct mxt_data *data,
int x;
int y;
int area;
int pressure;
/* Check the touch is present on the screen */
if (!(status & MXT_DETECT)) {
@ -584,6 +590,7 @@ static void mxt_input_touchevent(struct mxt_data *data,
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 @@ static void mxt_input_touchevent(struct mxt_data *data,
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 @@ static int __devinit mxt_probe(struct i2c_client *client,
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 @@ static int __devinit mxt_probe(struct i2c_client *client,
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);