[PATCH 24/40] Input: atmel_mxt_ts - Implement vector/orientation support
From: Nick Dyer <hidden>
Date: 2013-02-22 18:16:11
Also in:
lkml
Subsystem:
atmel maxtouch driver, input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Nick Dyer, Dmitry Torokhov, Linus Torvalds
The atmel touch messages contain orientation information as a byte in a packed format which can be passed straight on to Android if the input device configuration is correct, see http://source.android.com/tech/input/touch-devices.html#touchorientationcalibration This requires vector reports to be enabled in maXTouch config (zero DISVECT bit in T9 CTRL field) Android converts the format in frameworks/base/services/input/Input.cpp, search for ORIENTATION_CALIBRATION_VECTOR. Signed-off-by: Nick Dyer <redacted> --- drivers/input/touchscreen/atmel_mxt_ts.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index b1fdc36..6ab7ef6 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c@@ -621,6 +621,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message) int y; int area; int amplitude; + u8 vector; /* do not report events if input device not yet registered */ if (!input_dev)
@@ -638,9 +639,10 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message) area = message[5]; amplitude = message[6]; + vector = message[7]; dev_dbg(dev, - "[%u] %c%c%c%c%c%c%c%c x: %5u y: %5u area: %3u amp: %3u\n", + "[%u] %c%c%c%c%c%c%c%c x: %5u y: %5u area: %3u amp: %3u vector: %02X\n", id, (status & MXT_T9_DETECT) ? 'D' : '.', (status & MXT_T9_PRESS) ? 'P' : '.',
@@ -650,7 +652,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message) (status & MXT_T9_AMP) ? 'A' : '.', (status & MXT_T9_SUPPRESS) ? 'S' : '.', (status & MXT_T9_UNGRIP) ? 'U' : '.', - x, y, area, amplitude); + x, y, area, amplitude, vector); input_mt_slot(input_dev, id);
@@ -670,6 +672,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message) input_report_abs(input_dev, ABS_MT_POSITION_Y, y); input_report_abs(input_dev, ABS_MT_PRESSURE, amplitude); input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area); + input_report_abs(input_dev, ABS_MT_ORIENTATION, vector); } else { /* Touch no longer active, close out slot */ input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 0);
@@ -1945,6 +1948,8 @@ static int mxt_initialize_t9_input_device(struct mxt_data *data) 0, data->max_y, 0, 0); input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 255, 0, 0); + input_set_abs_params(input_dev, ABS_MT_ORIENTATION, + 0, 255, 0, 0); input_set_drvdata(input_dev, data);
--
1.7.10.4