Merge branch 'for-4.17/wacom' into for-linus

Pull support for 3rd generation Intuos BT device

2 files changed, 179 insertions, 48 deletions

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 90c38a0523e9..6da16a879c9f 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1202,15 +1202,24 @@ static int wacom_wac_finger_count_touches(struct wacom_wac *wacom)
 
 static void wacom_intuos_pro2_bt_pen(struct wacom_wac *wacom)
 {
-	const int pen_frame_len = 14;
-	const int pen_frames = 7;
+	int pen_frame_len, pen_frames;
 
 	struct input_dev *pen_input = wacom->pen_input;
 	unsigned char *data = wacom->data;
 	int i;
 
-	wacom->serial[0] = get_unaligned_le64(&data[99]);
-	wacom->id[0]     = get_unaligned_le16(&data[107]);
+	if (wacom->features.type == INTUOSP2_BT) {
+		wacom->serial[0] = get_unaligned_le64(&data[99]);
+		wacom->id[0]     = get_unaligned_le16(&data[107]);
+		pen_frame_len = 14;
+		pen_frames = 7;
+	} else {
+		wacom->serial[0] = get_unaligned_le64(&data[33]);
+		wacom->id[0]     = get_unaligned_le16(&data[41]);
+		pen_frame_len = 8;
+		pen_frames = 4;
+	}
+
 	if (wacom->serial[0] >> 52 == 1) {
 		/* Add back in missing bits of ID for non-USI pens */
 		wacom->id[0] |= (wacom->serial[0] >> 32) & 0xFFFFF;
@@ -1227,21 +1236,35 @@ static void wacom_intuos_pro2_bt_pen(struct wacom_wac *wacom)
 			continue;
 
 		if (range) {
-			/* Fix rotation alignment: userspace expects zero at left */
-			int16_t rotation = (int16_t)get_unaligned_le16(&frame[9]);
-			rotation += 1800/4;
-			if (rotation > 899)
-				rotation -= 1800;
-
 			input_report_abs(pen_input, ABS_X, get_unaligned_le16(&frame[1]));
 			input_report_abs(pen_input, ABS_Y, get_unaligned_le16(&frame[3]));
-			input_report_abs(pen_input, ABS_TILT_X, (char)frame[7]);
-			input_report_abs(pen_input, ABS_TILT_Y, (char)frame[8]);
-			input_report_abs(pen_input, ABS_Z, rotation);
-			input_report_abs(pen_input, ABS_WHEEL, get_unaligned_le16(&frame[11]));
+
+			if (wacom->features.type == INTUOSP2_BT) {
+				/* Fix rotation alignment: userspace expects zero at left */
+				int16_t rotation =
+					(int16_t)get_unaligned_le16(&frame[9]);
+				rotation += 1800/4;
+
+				if (rotation > 899)
+					rotation -= 1800;
+
+				input_report_abs(pen_input, ABS_TILT_X,
+						 (char)frame[7]);
+				input_report_abs(pen_input, ABS_TILT_Y,
+						 (char)frame[8]);
+				input_report_abs(pen_input, ABS_Z, rotation);
+				input_report_abs(pen_input, ABS_WHEEL,
+						 get_unaligned_le16(&frame[11]));
+			}
 		}
 		input_report_abs(pen_input, ABS_PRESSURE, get_unaligned_le16(&frame[5]));
-		input_report_abs(pen_input, ABS_DISTANCE, range ? frame[13] : wacom->features.distance_max);
+		if (wacom->features.type == INTUOSP2_BT) {
+			input_report_abs(pen_input, ABS_DISTANCE,
+					 range ? frame[13] : wacom->features.distance_max);
+		} else {
+			input_report_abs(pen_input, ABS_DISTANCE,
+					 range ? frame[7] : wacom->features.distance_max);
+		}
 
 		input_report_key(pen_input, BTN_TOUCH, frame[0] & 0x01);
 		input_report_key(pen_input, BTN_STYLUS, frame[0] & 0x02);
@@ -1357,20 +1380,52 @@ static void wacom_intuos_pro2_bt_battery(struct wacom_wac *wacom)
 			     battery_status, chg, 1, chg);
 }
 
+static void wacom_intuos_gen3_bt_pad(struct wacom_wac *wacom)
+{
+	struct input_dev *pad_input = wacom->pad_input;
+	unsigned char *data = wacom->data;
+
+	int buttons = data[44];
+
+	wacom_report_numbered_buttons(pad_input, 4, buttons);
+
+	input_report_key(pad_input, wacom->tool[1], buttons ? 1 : 0);
+	input_report_abs(pad_input, ABS_MISC, buttons ? PAD_DEVICE_ID : 0);
+	input_event(pad_input, EV_MSC, MSC_SERIAL, 0xffffffff);
+
+	input_sync(pad_input);
+}
+
+static void wacom_intuos_gen3_bt_battery(struct wacom_wac *wacom)
+{
+	unsigned char *data = wacom->data;
+
+	bool chg = data[45] & 0x80;
+	int battery_status = data[45] & 0x7F;
+
+	wacom_notify_battery(wacom, WACOM_POWER_SUPPLY_STATUS_AUTO,
+			     battery_status, chg, 1, chg);
+}
+
 static int wacom_intuos_pro2_bt_irq(struct wacom_wac *wacom, size_t len)
 {
 	unsigned char *data = wacom->data;
 
-	if (data[0] != 0x80) {
+	if (data[0] != 0x80 && data[0] != 0x81) {
 		dev_dbg(wacom->pen_input->dev.parent,
 			"%s: received unknown report #%d\n", __func__, data[0]);
 		return 0;
 	}
 
 	wacom_intuos_pro2_bt_pen(wacom);
-	wacom_intuos_pro2_bt_touch(wacom);
-	wacom_intuos_pro2_bt_pad(wacom);
-	wacom_intuos_pro2_bt_battery(wacom);
+	if (wacom->features.type == INTUOSP2_BT) {
+		wacom_intuos_pro2_bt_touch(wacom);
+		wacom_intuos_pro2_bt_pad(wacom);
+		wacom_intuos_pro2_bt_battery(wacom);
+	} else {
+		wacom_intuos_gen3_bt_pad(wacom);
+		wacom_intuos_gen3_bt_battery(wacom);
+	}
 	return 0;
 }
 
@@ -1660,7 +1715,8 @@ int wacom_equivalent_usage(int usage)
 		    usage == WACOM_HID_WD_TOUCHSTRIP ||
 		    usage == WACOM_HID_WD_TOUCHSTRIP2 ||
 		    usage == WACOM_HID_WD_TOUCHRING ||
-		    usage == WACOM_HID_WD_TOUCHRINGSTATUS) {
+		    usage == WACOM_HID_WD_TOUCHRINGSTATUS ||
+		    usage == WACOM_HID_WD_REPORT_VALID) {
 			return usage;
 		}
 
@@ -2017,7 +2073,7 @@ static void wacom_wac_pad_pre_report(struct hid_device *hdev,
 }
 
 static void wacom_wac_pad_report(struct hid_device *hdev,
-		struct hid_report *report)
+		struct hid_report *report, struct hid_field *field)
 {
 	struct wacom *wacom = hid_get_drvdata(hdev);
 	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
@@ -2025,7 +2081,7 @@ static void wacom_wac_pad_report(struct hid_device *hdev,
 	bool active = wacom_wac->hid_data.inrange_state != 0;
 
 	/* report prox for expresskey events */
-	if ((wacom_equivalent_usage(report->field[0]->physical) == HID_DG_TABLETFUNCTIONKEY) &&
+	if ((wacom_equivalent_usage(field->physical) == HID_DG_TABLETFUNCTIONKEY) &&
 	    wacom_wac->hid_data.pad_input_event_flag) {
 		input_event(input, EV_ABS, ABS_MISC, active ? PAD_DEVICE_ID : 0);
 		input_sync(input);
@@ -2144,6 +2200,9 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
 	struct input_dev *input = wacom_wac->pen_input;
 	unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
 
+	if (wacom_wac->is_invalid_bt_frame)
+		return;
+
 	switch (equivalent_usage) {
 	case HID_GD_Z:
 		/*
@@ -2240,6 +2299,9 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
 				 features->offset_bottom);
 		features->offset_bottom = value;
 		return;
+	case WACOM_HID_WD_REPORT_VALID:
+		wacom_wac->is_invalid_bt_frame = !value;
+		return;
 	}
 
 	/* send pen events only when touch is up or forced out
@@ -2258,6 +2320,10 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
 static void wacom_wac_pen_pre_report(struct hid_device *hdev,
 		struct hid_report *report)
 {
+	struct wacom *wacom = hid_get_drvdata(hdev);
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+
+	wacom_wac->is_invalid_bt_frame = false;
 	return;
 }
 
@@ -2270,6 +2336,9 @@ static void wacom_wac_pen_report(struct hid_device *hdev,
 	bool range = wacom_wac->hid_data.inrange_state;
 	bool sense = wacom_wac->hid_data.sense_state;
 
+	if (wacom_wac->is_invalid_bt_frame)
+		return;
+
 	if (!wacom_wac->tool[0] && range) { /* first in range */
 		/* Going into range select tool */
 		if (wacom_wac->hid_data.invert_state)
@@ -2572,11 +2641,13 @@ void wacom_wac_event(struct hid_device *hdev, struct hid_field *field,
 		wacom_wac_finger_event(hdev, field, usage, value);
 }
 
-static void wacom_report_events(struct hid_device *hdev, struct hid_report *report)
+static void wacom_report_events(struct hid_device *hdev,
+				struct hid_report *report, int collection_index,
+				int field_index)
 {
 	int r;
 
-	for (r = 0; r < report->maxfield; r++) {
+	for (r = field_index; r < report->maxfield; r++) {
 		struct hid_field *field;
 		unsigned count, n;
 
@@ -2586,30 +2657,23 @@ static void wacom_report_events(struct hid_device *hdev, struct hid_report *repo
 		if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
 			continue;
 
-		for (n = 0; n < count; n++)
-			wacom_wac_event(hdev, field, &field->usage[n], field->value[n]);
+		for (n = 0 ; n < count; n++) {
+			if (field->usage[n].collection_index == collection_index)
+				wacom_wac_event(hdev, field, &field->usage[n],
+						field->value[n]);
+			else
+				return;
+		}
 	}
 }
 
-void wacom_wac_report(struct hid_device *hdev, struct hid_report *report)
+static int wacom_wac_collection(struct hid_device *hdev, struct hid_report *report,
+			 int collection_index, struct hid_field *field,
+			 int field_index)
 {
 	struct wacom *wacom = hid_get_drvdata(hdev);
-	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
-	struct hid_field *field = report->field[0];
 
-	if (wacom_wac->features.type != HID_GENERIC)
-		return;
-
-	wacom_wac_battery_pre_report(hdev, report);
-
-	if (WACOM_PAD_FIELD(field) && wacom->wacom_wac.pad_input)
-		wacom_wac_pad_pre_report(hdev, report);
-	else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
-		wacom_wac_pen_pre_report(hdev, report);
-	else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
-		wacom_wac_finger_pre_report(hdev, report);
-
-	wacom_report_events(hdev, report);
+	wacom_report_events(hdev, report, collection_index, field_index);
 
 	/*
 	 * Non-input reports may be sent prior to the device being
@@ -2619,16 +2683,63 @@ void wacom_wac_report(struct hid_device *hdev, struct hid_report *report)
 	 * processing functions.
 	 */
 	if (report->type != HID_INPUT_REPORT)
-		return;
-
-	wacom_wac_battery_report(hdev, report);
+		return -1;
 
 	if (WACOM_PAD_FIELD(field) && wacom->wacom_wac.pad_input)
-		wacom_wac_pad_report(hdev, report);
+		wacom_wac_pad_report(hdev, report, field);
 	else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
 		wacom_wac_pen_report(hdev, report);
 	else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
 		wacom_wac_finger_report(hdev, report);
+
+	return 0;
+}
+
+void wacom_wac_report(struct hid_device *hdev, struct hid_report *report)
+{
+	struct wacom *wacom = hid_get_drvdata(hdev);
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+	struct hid_field *field;
+	bool pad_in_hid_field = false, pen_in_hid_field = false,
+		finger_in_hid_field = false;
+	int r;
+	int prev_collection = -1;
+
+	if (wacom_wac->features.type != HID_GENERIC)
+		return;
+
+	for (r = 0; r < report->maxfield; r++) {
+		field = report->field[r];
+
+		if (WACOM_PAD_FIELD(field))
+			pad_in_hid_field = true;
+		if (WACOM_PEN_FIELD(field))
+			pen_in_hid_field = true;
+		if (WACOM_FINGER_FIELD(field))
+			finger_in_hid_field = true;
+	}
+
+	wacom_wac_battery_pre_report(hdev, report);
+
+	if (pad_in_hid_field && wacom->wacom_wac.pad_input)
+		wacom_wac_pad_pre_report(hdev, report);
+	if (pen_in_hid_field && wacom->wacom_wac.pen_input)
+		wacom_wac_pen_pre_report(hdev, report);
+	if (finger_in_hid_field && wacom->wacom_wac.touch_input)
+		wacom_wac_finger_pre_report(hdev, report);
+
+	for (r = 0; r < report->maxfield; r++) {
+		field = report->field[r];
+
+		if (field->usage[0].collection_index != prev_collection) {
+			if (wacom_wac_collection(hdev, report,
+				field->usage[0].collection_index, field, r) < 0)
+				return;
+			prev_collection = field->usage[0].collection_index;
+		}
+	}
+
+	wacom_wac_battery_report(hdev, report);
 }
 
 static int wacom_bpt_touch(struct wacom_wac *wacom)
@@ -3093,6 +3204,7 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
 		break;
 
 	case INTUOSP2_BT:
+	case INTUOSHT3_BT:
 		sync = wacom_intuos_pro2_bt_irq(wacom_wac, len);
 		break;
 
@@ -3272,6 +3384,12 @@ void wacom_setup_device_quirks(struct wacom *wacom)
 		features->quirks |= WACOM_QUIRK_BATTERY;
 	}
 
+	if (features->type == INTUOSHT3_BT) {
+		features->device_type |= WACOM_DEVICETYPE_PEN |
+					 WACOM_DEVICETYPE_PAD;
+		features->quirks |= WACOM_QUIRK_BATTERY;
+	}
+
 	switch (features->type) {
 	case PL:
 	case DTU:
@@ -3466,7 +3584,9 @@ int wacom_setup_pen_input_capabilities(struct input_dev *input_dev,
 	case BAMBOO_PT:
 	case BAMBOO_PEN:
 	case INTUOSHT2:
-		if (features->type == INTUOSHT2) {
+	case INTUOSHT3_BT:
+		if (features->type == INTUOSHT2 ||
+		    features->type == INTUOSHT3_BT) {
 			wacom_setup_basic_pro_pen(wacom_wac);
 		} else {
 			__clear_bit(ABS_MISC, input_dev->absbit);
@@ -3887,6 +4007,7 @@ int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,
 		input_set_abs_params(input_dev, ABS_WHEEL, 0, 71, 0, 0);
 		break;
 
+	case INTUOSHT3_BT:
 	case HID_GENERIC:
 		break;
 
@@ -4415,6 +4536,12 @@ static const struct wacom_features wacom_features_0x360 =
 static const struct wacom_features wacom_features_0x361 =
 	{ "Wacom Intuos Pro L", 62200, 43200, 8191, 63,
 	  INTUOSP2_BT, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9, .touch_max = 10 };
+static const struct wacom_features wacom_features_0x377 =
+	{ "Wacom Intuos BT S", 15200, 9500, 4095, 63,
+	  INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 };
+static const struct wacom_features wacom_features_0x379 =
+	{ "Wacom Intuos BT M", 21600, 13500, 4095, 63,
+	  INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 };
 static const struct wacom_features wacom_features_0x37A =
 	{ "Wacom One by Wacom S", 15200, 9500, 2047, 63,
 	  BAMBOO_PEN, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -4589,6 +4716,8 @@ const struct hid_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0x343) },
 	{ BT_DEVICE_WACOM(0x360) },
 	{ BT_DEVICE_WACOM(0x361) },
+	{ BT_DEVICE_WACOM(0x377) },
+	{ BT_DEVICE_WACOM(0x379) },
 	{ USB_DEVICE_WACOM(0x37A) },
 	{ USB_DEVICE_WACOM(0x37B) },
 	{ USB_DEVICE_WACOM(0x4001) },
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index 15d9c14fbdf7..295fd3718caa 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -118,6 +118,7 @@
 #define WACOM_HID_WD_TOUCHSTRIP2        (WACOM_HID_UP_WACOMDIGITIZER | 0x0137)
 #define WACOM_HID_WD_TOUCHRING          (WACOM_HID_UP_WACOMDIGITIZER | 0x0138)
 #define WACOM_HID_WD_TOUCHRINGSTATUS    (WACOM_HID_UP_WACOMDIGITIZER | 0x0139)
+#define WACOM_HID_WD_REPORT_VALID       (WACOM_HID_UP_WACOMDIGITIZER | 0x01d0)
 #define WACOM_HID_WD_ACCELEROMETER_X    (WACOM_HID_UP_WACOMDIGITIZER | 0x0401)
 #define WACOM_HID_WD_ACCELEROMETER_Y    (WACOM_HID_UP_WACOMDIGITIZER | 0x0402)
 #define WACOM_HID_WD_ACCELEROMETER_Z    (WACOM_HID_UP_WACOMDIGITIZER | 0x0403)
@@ -213,6 +214,7 @@ enum {
 	INTUOSPM,
 	INTUOSPL,
 	INTUOSP2_BT,
+	INTUOSHT3_BT,
 	WACOM_21UX2,
 	WACOM_22HD,
 	DTK,
@@ -352,7 +354,7 @@ struct wacom_wac {
 	bool has_mute_touch_switch;
 	bool has_mode_change;
 	bool is_direct_mode;
-
+	bool is_invalid_bt_frame;
 };
 
 #endif