Signed-off-by: Nick Dyer <nick.dyer@xxxxxxxxxxx>
Acked-by: Benson Leung <bleung@xxxxxxxxxxxx>
---
drivers/input/touchscreen/atmel_mxt_ts.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 6631ef1..cd8f3e0 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -128,6 +128,9 @@ struct t9_range {
/* Define for MXT_PROCI_TOUCHSUPPRESSION_T42 */
#define MXT_T42_MSG_TCHSUP (1 << 0)
+/* T47 Stylus */
+#define MXT_TOUCH_MAJOR_T47_STYLUS 1
+
/* T63 Stylus */
#define MXT_STYLUS_PRESS (1 << 0)
#define MXT_STYLUS_RELEASE (1 << 1)
@@ -698,6 +701,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
int area;
int amplitude;
u8 vector;
+ int tool;
/* do not report events if input device not yet registered */
if (!data->enable_reporting)
@@ -715,6 +719,7 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
y >>= 2;
area = message[5];
+
amplitude = message[6];
vector = message[7];
@@ -743,8 +748,17 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
mxt_input_sync(input_dev);
}
+ /* A reported size of zero indicates that the reported touch
+ * is a stylus from a linked Stylus T47 object. */
+ if (area == 0) {
+ area = MXT_TOUCH_MAJOR_T47_STYLUS;
+ tool = MT_TOOL_PEN;
+ } else {
+ tool = MT_TOOL_FINGER;
+ }
+
/* Touch active */
- input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 1);
+ input_mt_report_slot_state(input_dev, tool, 1);
input_report_abs(input_dev, ABS_MT_POSITION_X, x);
input_report_abs(input_dev, ABS_MT_POSITION_Y, y);
input_report_abs(input_dev, ABS_MT_PRESSURE, amplitude);
--
1.7.10.4
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