Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid

Pull HID fixes from Jiri Kosina:

 - fixes for pen pen proximity / touch events in wacom driver, from Ping
   Cheng and Benjamin Tissoires

 - two new device-specific quirks from Oliver Neukum and Forest
   Wilkinson

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: wacom: check for wacom->shared before following the pointer
  HID: tivo: enable all buttons on the TiVo Slide Pro remote
  HID: add ALWAYS_POLL quirk for a Logitech 0xc007
  HID: wacom: rely on actual touch down count to decide touch_down
  HID: wacom: do not send pen events before touch is up/forced out

drivers/hid/hid-core.c

@@ -1959,6 +1959,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_PRO) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },

drivers/hid/hid-ids.h

@@ -586,6 +586,7 @@
 #define USB_VENDOR_ID_LOGITECH		0x046d
 #define USB_DEVICE_ID_LOGITECH_AUDIOHUB 0x0a0e
 #define USB_DEVICE_ID_LOGITECH_T651	0xb00c
+#define USB_DEVICE_ID_LOGITECH_C077	0xc007
 #define USB_DEVICE_ID_LOGITECH_RECEIVER	0xc101
 #define USB_DEVICE_ID_LOGITECH_HARMONY_FIRST  0xc110
 #define USB_DEVICE_ID_LOGITECH_HARMONY_LAST 0xc14f
@@ -898,6 +899,7 @@
 #define USB_VENDOR_ID_TIVO		0x150a
 #define USB_DEVICE_ID_TIVO_SLIDE_BT	0x1200
 #define USB_DEVICE_ID_TIVO_SLIDE	0x1201
+#define USB_DEVICE_ID_TIVO_SLIDE_PRO	0x1203
 
 #define USB_VENDOR_ID_TOPSEED		0x0766
 #define USB_DEVICE_ID_TOPSEED_CYBERLINK	0x0204

drivers/hid/hid-tivo.c

@@ -64,6 +64,7 @@ static const struct hid_device_id tivo_devices[] = {
 	/* TiVo Slide Bluetooth remote, pairs with a Broadcom dongle */
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_PRO) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, tivo_devices);

drivers/hid/usbhid/hid-quirks.c

@@ -78,6 +78,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_C077, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3_JP, HID_QUIRK_NO_INIT_REPORTS },

drivers/hid/wacom_wac.c

@@ -551,9 +551,13 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
 	   (features->type == CINTIQ && !(data[1] & 0x40)))
 		return 1;
 
-	if (features->quirks & WACOM_QUIRK_MULTI_INPUT)
+	if (wacom->shared) {
 		wacom->shared->stylus_in_proximity = true;
 
+		if (wacom->shared->touch_down)
+			return 1;
+	}
+
 	/* in Range while exiting */
 	if (((data[1] & 0xfe) == 0x20) && wacom->reporting_data) {
 		input_report_key(input, BTN_TOUCH, 0);
@@ -1043,27 +1047,28 @@ static int wacom_24hdt_irq(struct wacom_wac *wacom)
 	struct input_dev *input = wacom->input;
 	unsigned char *data = wacom->data;
 	int i;
-	int current_num_contacts = 0;
+	int current_num_contacts = data[61];
 	int contacts_to_send = 0;
 	int num_contacts_left = 4; /* maximum contacts per packet */
 	int byte_per_packet = WACOM_BYTES_PER_24HDT_PACKET;
 	int y_offset = 2;
+	static int contact_with_no_pen_down_count = 0;
 
 	if (wacom->features.type == WACOM_27QHDT) {
 		current_num_contacts = data[63];
 		num_contacts_left = 10;
 		byte_per_packet = WACOM_BYTES_PER_QHDTHID_PACKET;
 		y_offset = 0;
-	} else {
-		current_num_contacts = data[61];
 	}
 
 	/*
 	 * First packet resets the counter since only the first
 	 * packet in series will have non-zero current_num_contacts.
 	 */
-	if (current_num_contacts)
+	if (current_num_contacts) {
 		wacom->num_contacts_left = current_num_contacts;
+		contact_with_no_pen_down_count = 0;
+	}
 
 	contacts_to_send = min(num_contacts_left, wacom->num_contacts_left);
 
@@ -1096,15 +1101,16 @@ static int wacom_24hdt_irq(struct wacom_wac *wacom)
 				input_report_abs(input, ABS_MT_WIDTH_MINOR, min(w, h));
 				input_report_abs(input, ABS_MT_ORIENTATION, w > h);
 			}
+			contact_with_no_pen_down_count++;
 		}
 	}
 	input_mt_report_pointer_emulation(input, true);
 
 	wacom->num_contacts_left -= contacts_to_send;
-	if (wacom->num_contacts_left <= 0)
+	if (wacom->num_contacts_left <= 0) {
 		wacom->num_contacts_left = 0;
-
-	wacom->shared->touch_down = (wacom->num_contacts_left > 0);
+		wacom->shared->touch_down = (contact_with_no_pen_down_count > 0);
+	}
 	return 1;
 }
 
@@ -1116,6 +1122,7 @@ static int wacom_mt_touch(struct wacom_wac *wacom)
 	int current_num_contacts = data[2];
 	int contacts_to_send = 0;
 	int x_offset = 0;
+	static int contact_with_no_pen_down_count = 0;
 
 	/* MTTPC does not support Height and Width */
 	if (wacom->features.type == MTTPC || wacom->features.type == MTTPC_B)
@@ -1125,8 +1132,10 @@ static int wacom_mt_touch(struct wacom_wac *wacom)
 	 * First packet resets the counter since only the first
 	 * packet in series will have non-zero current_num_contacts.
 	 */
-	if (current_num_contacts)
+	if (current_num_contacts) {
 		wacom->num_contacts_left = current_num_contacts;
+		contact_with_no_pen_down_count = 0;
+	}
 
 	/* There are at most 5 contacts per packet */
 	contacts_to_send = min(5, wacom->num_contacts_left);
@@ -1147,15 +1156,16 @@ static int wacom_mt_touch(struct wacom_wac *wacom)
 			int y = get_unaligned_le16(&data[offset + x_offset + 9]);
 			input_report_abs(input, ABS_MT_POSITION_X, x);
 			input_report_abs(input, ABS_MT_POSITION_Y, y);
+			contact_with_no_pen_down_count++;
 		}
 	}
 	input_mt_report_pointer_emulation(input, true);
 
 	wacom->num_contacts_left -= contacts_to_send;
-	if (wacom->num_contacts_left < 0)
+	if (wacom->num_contacts_left <= 0) {
 		wacom->num_contacts_left = 0;
-
-	wacom->shared->touch_down = (wacom->num_contacts_left > 0);
+		wacom->shared->touch_down = (contact_with_no_pen_down_count > 0);
+	}
 	return 1;
 }
 
@@ -1193,29 +1203,25 @@ static int wacom_tpc_single_touch(struct wacom_wac *wacom, size_t len)
 {
 	unsigned char *data = wacom->data;
 	struct input_dev *input = wacom->input;
-	bool prox;
+	bool prox = !wacom->shared->stylus_in_proximity;
 	int x = 0, y = 0;
 
 	if (wacom->features.touch_max > 1 || len > WACOM_PKGLEN_TPC2FG)
 		return 0;
 
-	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 if (len == WACOM_PKGLEN_TPC1FG_B) {
-			prox = data[2] & 0x01;
-			x = get_unaligned_le16(&data[3]);
-			y = get_unaligned_le16(&data[5]);
-		} else {
-			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) {
+		prox = prox && (data[0] & 0x01);
+		x = get_unaligned_le16(&data[1]);
+		y = get_unaligned_le16(&data[3]);
+	} else if (len == WACOM_PKGLEN_TPC1FG_B) {
+		prox = prox && (data[2] & 0x01);
+		x = get_unaligned_le16(&data[3]);
+		y = get_unaligned_le16(&data[5]);
+	} else {
+		prox = prox && (data[1] & 0x01);
+		x = le16_to_cpup((__le16 *)&data[2]);
+		y = le16_to_cpup((__le16 *)&data[4]);
+	}
 
 	if (prox) {
 		input_report_abs(input, ABS_X, x);
@@ -1613,6 +1619,7 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
 	struct input_dev *pad_input = wacom->pad_input;
 	unsigned char *data = wacom->data;
 	int i;
+	int contact_with_no_pen_down_count = 0;
 
 	if (data[0] != 0x02)
 	    return 0;
@@ -1640,6 +1647,7 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
 			}
 			input_report_abs(input, ABS_MT_POSITION_X, x);
 			input_report_abs(input, ABS_MT_POSITION_Y, y);
+			contact_with_no_pen_down_count++;
 		}
 	}
 
@@ -1649,11 +1657,12 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
 	input_report_key(pad_input, BTN_FORWARD, (data[1] & 0x04) != 0);
 	input_report_key(pad_input, BTN_BACK, (data[1] & 0x02) != 0);
 	input_report_key(pad_input, BTN_RIGHT, (data[1] & 0x01) != 0);
+	wacom->shared->touch_down = (contact_with_no_pen_down_count > 0);
 
 	return 1;
 }
 
-static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
+static int wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data, int last_touch_count)
 {
 	struct wacom_features *features = &wacom->features;
 	struct input_dev *input = wacom->input;
@@ -1661,7 +1670,7 @@ static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
 	int slot = input_mt_get_slot_by_key(input, data[0]);
 
 	if (slot < 0)
-		return;
+		return 0;
 
 	touch = touch && !wacom->shared->stylus_in_proximity;
 
@@ -1693,7 +1702,9 @@ static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
 		input_report_abs(input, ABS_MT_POSITION_Y, y);
 		input_report_abs(input, ABS_MT_TOUCH_MAJOR, width);
 		input_report_abs(input, ABS_MT_TOUCH_MINOR, height);
+		last_touch_count++;
 	}
+	return last_touch_count;
 }
 
 static void wacom_bpt3_button_msg(struct wacom_wac *wacom, unsigned char *data)
@@ -1718,6 +1729,7 @@ static int wacom_bpt3_touch(struct wacom_wac *wacom)
 	unsigned char *data = wacom->data;
 	int count = data[1] & 0x07;
 	int i;
+	int contact_with_no_pen_down_count = 0;
 
 	if (data[0] != 0x02)
 	    return 0;
@@ -1728,12 +1740,15 @@ static int wacom_bpt3_touch(struct wacom_wac *wacom)
 		int msg_id = data[offset];
 
 		if (msg_id >= 2 && msg_id <= 17)
-			wacom_bpt3_touch_msg(wacom, data + offset);
+			contact_with_no_pen_down_count = 
+			    wacom_bpt3_touch_msg(wacom, data + offset,
+						 contact_with_no_pen_down_count);
 		else if (msg_id == 128)
 			wacom_bpt3_button_msg(wacom, data + offset);
 
 	}
 	input_mt_report_pointer_emulation(input, true);
+	wacom->shared->touch_down = (contact_with_no_pen_down_count > 0);
 
 	return 1;
 }
@@ -1759,6 +1774,9 @@ static int wacom_bpt_pen(struct wacom_wac *wacom)
 		return 0;
 	}
 
+	if (wacom->shared->touch_down)
+		return 0;
+
 	prox = (data[1] & 0x20) == 0x20;
 
 	/*