[PATCH v3] Input: atmel_mxt_ts - Report pressure information from the driver
From: Yufeng Shen <hidden>
Date: 2011-08-15 15:03:04
Also in:
linux-input
Subsystem:
atmel maxtouch driver, input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Nick Dyer, Dmitry Torokhov, Linus Torvalds
Atmel mxt1386 touch controller has the touch pressure information but the current driver atmel_mxt_ts does not expose it to the user space. This patch makes the driver report the touch pressure information to user space. ChangeLog: v2: fixed indentation as commented by Wanlong Gao v3: added signed-off-by Change-Id: Ie0e4683a3cd5ec79222f7682b0ddc24f909af543 Signed-off-by: Yufeng Shen <redacted> --- drivers/input/touchscreen/atmel_mxt_ts.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index ae00604..9bdf4e0 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c@@ -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; }
@@ -560,6 +563,7 @@ 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 +588,7 @@ 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 +599,7 @@ 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); }
@@ -1125,6 +1131,8 @@ 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);
--
1.7.3.1