diff mbox

[3/4,v3] input - wacom : support one finger touch the touchscreen way

Message ID 1299025123-8588-1-git-send-email-pinglinux@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ping Cheng March 2, 2011, 12:18 a.m. UTC
None
diff mbox

Patch

diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 15bab99..ebbb375 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -675,51 +675,37 @@  static int wacom_intuos_irq(struct wacom_wac *wacom)
 	return 1;
 }
 
-static void wacom_tpc_touch_out(struct wacom_wac *wacom, int idx)
-{
-	struct input_dev *input = wacom->input;
-	int finger = idx + 1;
-
-	input_report_abs(input, ABS_X, 0);
-	input_report_abs(input, ABS_Y, 0);
-	input_report_abs(input, ABS_MISC, 0);
-	input_report_key(input, wacom->tool[finger], 0);
-	if (!idx)
-		input_report_key(input, BTN_TOUCH, 0);
-	input_event(input, EV_MSC, MSC_SERIAL, finger);
-	input_sync(input);
-}
-
-static void wacom_tpc_touch_in(struct wacom_wac *wacom, size_t len)
+static int wacom_tpc_single_touch(struct wacom_wac *wacom, size_t len)
 {
 	char *data = wacom->data;
 	struct input_dev *input = wacom->input;
+	bool prox = 0;
+	int x = 0, y = 0;
 
-	wacom->tool[1] = BTN_TOOL_DOUBLETAP;
-	wacom->id[0] = TOUCH_DEVICE_ID;
+	if (!wacom->shared->stylus_in_proximity) {
+		if (len == WACOM_PKGLEN_TPC1FG) {
+			prox = data[0] & 0x01;
+			x = get_unaligned_le16(&data[1]);
+			y = get_unaligned_le16(&data[3]);
+		} else { /* with capacity */
+			prox = data[1] & 0x01;
+			x = le16_to_cpup((__le16 *)&data[2]);
+			y = le16_to_cpup((__le16 *)&data[4]);
+		}
+	} else
+		/* force touch out when pen is in prox */
+		prox = 0;
 
-	if (len != WACOM_PKGLEN_TPC1FG) {
+	if (prox) {
+		input_report_abs(input, ABS_X, x);
+		input_report_abs(input, ABS_Y, y);
+	}
+	input_report_key(input, BTN_TOUCH, prox);
 
-		switch (data[0]) {
+	/* keep touch state for pen events */
+	wacom->shared->touch_down = prox;
 
-		case WACOM_REPORT_TPC1FG:
-			input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
-			input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
-			input_report_abs(input, ABS_PRESSURE, le16_to_cpup((__le16 *)&data[6]));
-			input_report_key(input, BTN_TOUCH, le16_to_cpup((__le16 *)&data[6]));
-			input_report_abs(input, ABS_MISC, wacom->id[0]);
-			input_report_key(input, wacom->tool[1], 1);
-			input_sync(input);
-			break;
-		}
-	} else {
-		input_report_abs(input, ABS_X, get_unaligned_le16(&data[1]));
-		input_report_abs(input, ABS_Y, get_unaligned_le16(&data[3]));
-		input_report_key(input, BTN_TOUCH, 1);
-		input_report_abs(input, ABS_MISC, wacom->id[1]);
-		input_report_key(input, wacom->tool[1], 1);
-		input_sync(input);
-	}
+	return 1;
 }
 
 static int wacom_tpc_pen(struct wacom_wac *wacom)
@@ -731,7 +717,7 @@  static int wacom_tpc_pen(struct wacom_wac *wacom)
 
 	prox = data[1] & 0x20;
 
-	if (!wacom->shared->stylus_in_proximity) { /* first in prox */
+	if (!wacom->shared->stylus_in_proximity) {
 		/* Going into proximity select tool */
 		wacom->tool[0] = (data[1] & 0x0c) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
 		if (wacom->tool[0] == BTN_TOOL_PEN)
@@ -741,57 +727,38 @@  static int wacom_tpc_pen(struct wacom_wac *wacom)
 
 		wacom->shared->stylus_in_proximity = true;
 	}
-	input_report_key(input, BTN_STYLUS, data[1] & 0x02);
-	input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
-	input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
-	input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
-	pressure = ((data[7] & 0x01) << 8) | data[6];
-	if (pressure < 0)
-		pressure = features->pressure_max + pressure + 1;
-	input_report_abs(input, ABS_PRESSURE, pressure);
-	input_report_key(input, BTN_TOUCH, data[1] & 0x05);
-	if (!prox) { /* out-prox */
-		wacom->id[0] = 0;
-		wacom->shared->stylus_in_proximity = false;
+
+	/* send pen events only when touch is up or touch are forced out */
+	if (!wacom->shared->touch_down) {
+		input_report_key(input, BTN_STYLUS, data[1] & 0x02);
+		input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
+		input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
+		input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
+		pressure = ((data[7] & 0x01) << 8) | data[6];
+		if (pressure < 0)
+			pressure = features->pressure_max + pressure + 1;
+		input_report_abs(input, ABS_PRESSURE, pressure);
+		input_report_key(input, BTN_TOUCH, data[1] & 0x05);
+		if (!prox) { /* out-prox */
+			wacom->id[0] = 0;
+			wacom->shared->stylus_in_proximity = false;
+		}
+		input_report_key(input, wacom->tool[0], prox);
+		return 1;
 	}
-	input_report_key(input, wacom->tool[0], prox);
 
-	return 1;
+	return 0;
 }
 
 static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
 {
 	char *data = wacom->data;
-	int prox = 0;
 
 	dbg("wacom_tpc_irq: received report #%d", data[0]);
 
-	if (len == WACOM_PKGLEN_TPC1FG ||
-	    data[0] == WACOM_REPORT_TPC1FG) {	/* single touch */
-
-		if (wacom->shared->stylus_in_proximity) {
-			if (wacom->id[1] & 0x01)
-				wacom_tpc_touch_out(wacom, 0);
-
-			wacom->id[1] = 0;
-			return 0;
-		}
-
-		if (len == WACOM_PKGLEN_TPC1FG)
-			prox = data[0] & 0x01;
-		else  /* with capacity */
-			prox = data[1] & 0x01;
-
-		if (prox)
-			wacom_tpc_touch_in(wacom, len);
-		else {
-			wacom_tpc_touch_out(wacom, 0);
-
-			wacom->id[0] = 0;
-		}
-		/* keep prox bit to send proper out-prox event */
-		wacom->id[1] = prox;
-	} else if (data[0] == WACOM_REPORT_PENABLED)
+	if (len == WACOM_PKGLEN_TPC1FG || data[0] == WACOM_REPORT_TPC1FG)
+		return wacom_tpc_single_touch(wacom, len);
+	else if (data[0] == WACOM_REPORT_PENABLED)
 		return wacom_tpc_pen(wacom);
 
 	return 0;
@@ -1172,6 +1139,8 @@  void wacom_setup_input_capabilities(struct input_dev *input_dev,
 		/* fall through */
 
 	case TABLETPC:
+		__clear_bit(ABS_MISC, input_dev->absbit);
+
 		if (features->device_type == BTN_TOOL_DOUBLETAP ||
 		    features->device_type == BTN_TOOL_TRIPLETAP) {
 			input_abs_set_res(input_dev, ABS_X,
@@ -1180,7 +1149,6 @@  void wacom_setup_input_capabilities(struct input_dev *input_dev,
 			input_abs_set_res(input_dev, ABS_Y,
 				wacom_calculate_touch_res(features->y_max,
 							features->y_phy));
-			__set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
 		}
 
 		if (features->device_type != BTN_TOOL_PEN)
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 8f747dd..835f756 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -88,6 +88,7 @@  struct wacom_features {
 
 struct wacom_shared {
 	bool stylus_in_proximity;
+	bool touch_down;
 };
 
 struct wacom_wac {