Merge branch 'for-6.8/wacom' into for-linus

- functional fix for handling Confidence in Wacom driver (Jason Gerecke)
- power management fix for Wacom userspace battery exporting (Tatsunosuke Tobita)

Conflicts:
	tools/testing/selftests/hid/tests/test_wacom_generic.py

Author: Jiri Kosina

drivers/hid/wacom.h

@@ -164,6 +164,7 @@ struct wacom {
 	struct work_struct battery_work;
 	struct work_struct remote_work;
 	struct delayed_work init_work;
+	struct delayed_work aes_battery_work;
 	struct wacom_remote *remote;
 	struct work_struct mode_change_work;
 	struct timer_list idleprox_timer;

drivers/hid/wacom_sys.c

@@ -1813,6 +1813,13 @@ static void wacom_destroy_battery(struct wacom *wacom)
 	}
 }
 
+static void wacom_aes_battery_handler(struct work_struct *work)
+{
+	struct wacom *wacom = container_of(work, struct wacom, aes_battery_work.work);
+
+	wacom_destroy_battery(wacom);
+}
+
 static ssize_t wacom_show_speed(struct device *dev,
 				struct device_attribute
 				*attr, char *buf)
@@ -2794,6 +2801,7 @@ static int wacom_probe(struct hid_device *hdev,
 
 	mutex_init(&wacom->lock);
 	INIT_DELAYED_WORK(&wacom->init_work, wacom_init_work);
+	INIT_DELAYED_WORK(&wacom->aes_battery_work, wacom_aes_battery_handler);
 	INIT_WORK(&wacom->wireless_work, wacom_wireless_work);
 	INIT_WORK(&wacom->battery_work, wacom_battery_work);
 	INIT_WORK(&wacom->remote_work, wacom_remote_work);

drivers/hid/wacom_wac.c

@@ -2528,11 +2528,12 @@ static void wacom_wac_pen_report(struct hid_device *hdev,
 	struct input_dev *input = wacom_wac->pen_input;
 	bool range = wacom_wac->hid_data.inrange_state;
 	bool sense = wacom_wac->hid_data.sense_state;
+	bool entering_range = !wacom_wac->tool[0] && range;
 
 	if (wacom_wac->is_invalid_bt_frame)
 		return;
 
-	if (!wacom_wac->tool[0] && range) { /* first in range */
+	if (entering_range) { /* first in range */
 		/* Going into range select tool */
 		if (wacom_wac->hid_data.invert_state)
 			wacom_wac->tool[0] = BTN_TOOL_RUBBER;
@@ -2583,6 +2584,15 @@ static void wacom_wac_pen_report(struct hid_device *hdev,
 		input_sync(input);
 	}
 
+	/* Handle AES battery timeout behavior */
+	if (wacom_wac->features.quirks & WACOM_QUIRK_AESPEN) {
+		if (entering_range)
+			cancel_delayed_work(&wacom->aes_battery_work);
+		if (!sense)
+			schedule_delayed_work(&wacom->aes_battery_work,
+					      msecs_to_jiffies(WACOM_AES_BATTERY_TIMEOUT));
+	}
+
 	if (!sense) {
 		wacom_wac->tool[0] = 0;
 		wacom_wac->id[0] = 0;
@@ -2649,8 +2659,8 @@ static void wacom_wac_finger_slot(struct wacom_wac *wacom_wac,
 {
 	struct hid_data *hid_data = &wacom_wac->hid_data;
 	bool mt = wacom_wac->features.touch_max > 1;
-	bool prox = hid_data->tipswitch &&
-		    report_touch_events(wacom_wac);
+	bool touch_down = hid_data->tipswitch && hid_data->confidence;
+	bool prox = touch_down && report_touch_events(wacom_wac);
 
 	if (touch_is_muted(wacom_wac)) {
 		if (!wacom_wac->shared->touch_down)
@@ -2700,24 +2710,6 @@ static void wacom_wac_finger_slot(struct wacom_wac *wacom_wac,
 	}
 }
 
-static bool wacom_wac_slot_is_active(struct input_dev *dev, int key)
-{
-	struct input_mt *mt = dev->mt;
-	struct input_mt_slot *s;
-
-	if (!mt)
-		return false;
-
-	for (s = mt->slots; s != mt->slots + mt->num_slots; s++) {
-		if (s->key == key &&
-			input_mt_get_value(s, ABS_MT_TRACKING_ID) >= 0) {
-			return true;
-		}
-	}
-
-	return false;
-}
-
 static void wacom_wac_finger_event(struct hid_device *hdev,
 		struct hid_field *field, struct hid_usage *usage, __s32 value)
 {
@@ -2768,14 +2760,8 @@ static void wacom_wac_finger_event(struct hid_device *hdev,
 	}
 
 	if (usage->usage_index + 1 == field->report_count) {
-		if (equivalent_usage == wacom_wac->hid_data.last_slot_field) {
-			bool touch_removed = wacom_wac_slot_is_active(wacom_wac->touch_input,
-				wacom_wac->hid_data.id) && !wacom_wac->hid_data.tipswitch;
-
-			if (wacom_wac->hid_data.confidence || touch_removed) {
-				wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input);
-			}
-		}
+		if (equivalent_usage == wacom_wac->hid_data.last_slot_field)
+			wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input);
 	}
 }
 

drivers/hid/wacom_wac.h

@@ -14,6 +14,7 @@
 #define WACOM_MAX_REMOTES	5
 #define WACOM_STATUS_UNKNOWN	255
 #define WACOM_REMOTE_BATTERY_TIMEOUT	21000000000ll
+#define WACOM_AES_BATTERY_TIMEOUT       1800000
 
 /* packet length for individual models */
 #define WACOM_PKGLEN_BBFUN	 9