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

Pull HID updates from Jiri Kosina:

 - high-resolution scrolling support that gracefully handles differences
   between MS and Logitech implementations in HW, from Peter Hutterer
   and Harry Cutts

 - MSI IRQ support for intel-ish driver, from Song Hongyan

 - support for new hardware (Cougar 700K, Odys Winbook 13, ASUS FX503VD,
   ASUS T101HA) from Daniel M. Lambea, Hans de Goede and Aleix Roca
   Nonell

 - other small assorted fixups

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (22 commits)
  HID: i2c-hid: Add Odys Winbook 13 to descriptor override
  HID: lenovo: Add checks to fix of_led_classdev_register
  HID: intel-ish-hid: add MSI interrupt support
  HID: debug: Change to use DEFINE_SHOW_ATTRIBUTE macro
  HID: doc: fix wrong data structure reference for UHID_OUTPUT
  HID: intel-ish-hid: fixes incorrect error handling
  HID: asus: Add support for the ASUS T101HA keyboard dock
  HID: logitech: Use LDJ_DEVICE macro for existing Logitech mice
  HID: logitech: Enable high-resolution scrolling on Logitech mice
  HID: logitech: Add function to enable HID++ 1.0 "scrolling acceleration"
  HID: logitech-hidpp: fix typo, hiddpp to hidpp
  HID: input: use the Resolution Multiplier for high-resolution scrolling
  HID: core: process the Resolution Multiplier
  HID: core: store the collections as a basic tree
  Input: add `REL_WHEEL_HI_RES` and `REL_HWHEEL_HI_RES`
  HID: input: support Microsoft wireless radio control hotkey
  HID: use macros in IS_INPUT_APPLICATION
  HID: asus: Add support for the ASUS FX503VD laptop
  HID: asus: Add event handler to catch unmapped Asus Vendor UsagePage codes
  HID: cougar: Add support for Cougar 700K Gaming Keyboard
  ...

Documentation/hid/uhid.txt

@@ -160,7 +160,7 @@ them but you should handle them according to your needs.
   UHID_OUTPUT:
   This is sent if the HID device driver wants to send raw data to the I/O
   device on the interrupt channel. You should read the payload and forward it to
-  the device. The payload is of type "struct uhid_data_req".
+  the device. The payload is of type "struct uhid_output_req".
   This may be received even though you haven't received UHID_OPEN, yet.
 
   UHID_GET_REPORT:

Documentation/input/event-codes.rst

@@ -190,7 +190,26 @@ A few EV_REL codes have special meanings:
 * REL_WHEEL, REL_HWHEEL:
 
   - These codes are used for vertical and horizontal scroll wheels,
-    respectively.
+    respectively. The value is the number of detents moved on the wheel, the
+    physical size of which varies by device. For high-resolution wheels
+    this may be an approximation based on the high-resolution scroll events,
+    see REL_WHEEL_HI_RES. These event codes are legacy codes and
+    REL_WHEEL_HI_RES and REL_HWHEEL_HI_RES should be preferred where
+    available.
+
+* REL_WHEEL_HI_RES, REL_HWHEEL_HI_RES:
+
+  - High-resolution scroll wheel data. The accumulated value 120 represents
+    movement by one detent. For devices that do not provide high-resolution
+    scrolling, the value is always a multiple of 120. For devices with
+    high-resolution scrolling, the value may be a fraction of 120.
+
+    If a vertical scroll wheel supports high-resolution scrolling, this code
+    will be emitted in addition to REL_WHEEL or REL_HWHEEL. The REL_WHEEL
+    and REL_HWHEEL may be an approximation based on the high-resolution
+    scroll events. There is no guarantee that the high-resolution data
+    is a multiple of 120 at the time of an emulated REL_WHEEL or REL_HWHEEL
+    event.
 
 EV_ABS
 ------

drivers/hid/hid-asus.c

@@ -70,6 +70,7 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
 #define QUIRK_T100_KEYBOARD		BIT(6)
 #define QUIRK_T100CHI			BIT(7)
 #define QUIRK_G752_KEYBOARD		BIT(8)
+#define QUIRK_T101HA_DOCK		BIT(9)
 
 #define I2C_KEYBOARD_QUIRKS			(QUIRK_FIX_NOTEBOOK_REPORT | \
 						 QUIRK_NO_INIT_REPORTS | \
@@ -241,6 +242,18 @@ static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size)
 	return 1;
 }
 
+static int asus_event(struct hid_device *hdev, struct hid_field *field,
+		      struct hid_usage *usage, __s32 value)
+{
+	if ((usage->hid & HID_USAGE_PAGE) == 0xff310000 &&
+	    (usage->hid & HID_USAGE) != 0x00 && !usage->type) {
+		hid_warn(hdev, "Unmapped Asus vendor usagepage code 0x%02x\n",
+			 usage->hid & HID_USAGE);
+	}
+
+	return 0;
+}
+
 static int asus_raw_event(struct hid_device *hdev,
 		struct hid_report *report, u8 *data, int size)
 {
@@ -510,6 +523,7 @@ static int asus_input_mapping(struct hid_device *hdev,
 		case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP);		break;
 		case 0x35: asus_map_key_clear(KEY_DISPLAY_OFF);		break;
 		case 0x6c: asus_map_key_clear(KEY_SLEEP);		break;
+		case 0x7c: asus_map_key_clear(KEY_MICMUTE);		break;
 		case 0x82: asus_map_key_clear(KEY_CAMERA);		break;
 		case 0x88: asus_map_key_clear(KEY_RFKILL);			break;
 		case 0xb5: asus_map_key_clear(KEY_CALC);			break;
@@ -528,6 +542,9 @@ static int asus_input_mapping(struct hid_device *hdev,
 		/* Fn+Space Power4Gear Hybrid */
 		case 0x5c: asus_map_key_clear(KEY_PROG3);		break;
 
+		/* Fn+F5 "fan" symbol on FX503VD */
+		case 0x99: asus_map_key_clear(KEY_PROG4);		break;
+
 		default:
 			/* ASUS lazily declares 256 usages, ignore the rest,
 			 * as some make the keyboard appear as a pointer device. */
@@ -683,6 +700,11 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		return ret;
 	}
 
+	/* use hid-multitouch for T101HA touchpad */
+	if (id->driver_data & QUIRK_T101HA_DOCK &&
+	    hdev->collection->usage == HID_GD_MOUSE)
+		return -ENODEV;
+
 	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 	if (ret) {
 		hid_err(hdev, "Asus hw start failed: %d\n", ret);
@@ -805,12 +827,17 @@ static const struct hid_device_id asus_devices[] = {
 		USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
 		USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3), QUIRK_G752_KEYBOARD },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
+		USB_DEVICE_ID_ASUSTEK_FX503VD_KEYBOARD),
+	  QUIRK_USE_KBD_BACKLIGHT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
 		USB_DEVICE_ID_ASUSTEK_T100TA_KEYBOARD),
 	  QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
 		USB_DEVICE_ID_ASUSTEK_T100TAF_KEYBOARD),
 	  QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
+		USB_DEVICE_ID_ASUSTEK_T101HA_KEYBOARD), QUIRK_T101HA_DOCK },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) },
@@ -832,6 +859,7 @@ static struct hid_driver asus_driver = {
 #ifdef CONFIG_PM
 	.reset_resume           = asus_reset_resume,
 #endif
+	.event			= asus_event,
 	.raw_event		= asus_raw_event
 };
 module_hid_driver(asus_driver);

drivers/hid/hid-core.c

@@ -172,6 +172,8 @@ static int open_collection(struct hid_parser *parser, unsigned type)
 	collection->type = type;
 	collection->usage = usage;
 	collection->level = parser->collection_stack_ptr - 1;
+	collection->parent = parser->active_collection;
+	parser->active_collection = collection;
 
 	if (type == HID_COLLECTION_APPLICATION)
 		parser->device->maxapplication++;
@@ -190,6 +192,8 @@ static int close_collection(struct hid_parser *parser)
 		return -EINVAL;
 	}
 	parser->collection_stack_ptr--;
+	if (parser->active_collection)
+		parser->active_collection = parser->active_collection->parent;
 	return 0;
 }
 
@@ -290,6 +294,7 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
 		field->usage[i].collection_index =
 			parser->local.collection_index[j];
 		field->usage[i].usage_index = i;
+		field->usage[i].resolution_multiplier = 1;
 	}
 
 	field->maxusage = usages;
@@ -943,6 +948,167 @@ struct hid_report *hid_validate_values(struct hid_device *hid,
 }
 EXPORT_SYMBOL_GPL(hid_validate_values);
 
+static int hid_calculate_multiplier(struct hid_device *hid,
+				     struct hid_field *multiplier)
+{
+	int m;
+	__s32 v = *multiplier->value;
+	__s32 lmin = multiplier->logical_minimum;
+	__s32 lmax = multiplier->logical_maximum;
+	__s32 pmin = multiplier->physical_minimum;
+	__s32 pmax = multiplier->physical_maximum;
+
+	/*
+	 * "Because OS implementations will generally divide the control's
+	 * reported count by the Effective Resolution Multiplier, designers
+	 * should take care not to establish a potential Effective
+	 * Resolution Multiplier of zero."
+	 * HID Usage Table, v1.12, Section 4.3.1, p31
+	 */
+	if (lmax - lmin == 0)
+		return 1;
+	/*
+	 * Handling the unit exponent is left as an exercise to whoever
+	 * finds a device where that exponent is not 0.
+	 */
+	m = ((v - lmin)/(lmax - lmin) * (pmax - pmin) + pmin);
+	if (unlikely(multiplier->unit_exponent != 0)) {
+		hid_warn(hid,
+			 "unsupported Resolution Multiplier unit exponent %d\n",
+			 multiplier->unit_exponent);
+	}
+
+	/* There are no devices with an effective multiplier > 255 */
+	if (unlikely(m == 0 || m > 255 || m < -255)) {
+		hid_warn(hid, "unsupported Resolution Multiplier %d\n", m);
+		m = 1;
+	}
+
+	return m;
+}
+
+static void hid_apply_multiplier_to_field(struct hid_device *hid,
+					  struct hid_field *field,
+					  struct hid_collection *multiplier_collection,
+					  int effective_multiplier)
+{
+	struct hid_collection *collection;
+	struct hid_usage *usage;
+	int i;
+
+	/*
+	 * If multiplier_collection is NULL, the multiplier applies
+	 * to all fields in the report.
+	 * Otherwise, it is the Logical Collection the multiplier applies to
+	 * but our field may be in a subcollection of that collection.
+	 */
+	for (i = 0; i < field->maxusage; i++) {
+		usage = &field->usage[i];
+
+		collection = &hid->collection[usage->collection_index];
+		while (collection && collection != multiplier_collection)
+			collection = collection->parent;
+
+		if (collection || multiplier_collection == NULL)
+			usage->resolution_multiplier = effective_multiplier;
+
+	}
+}
+
+static void hid_apply_multiplier(struct hid_device *hid,
+				 struct hid_field *multiplier)
+{
+	struct hid_report_enum *rep_enum;
+	struct hid_report *rep;
+	struct hid_field *field;
+	struct hid_collection *multiplier_collection;
+	int effective_multiplier;
+	int i;
+
+	/*
+	 * "The Resolution Multiplier control must be contained in the same
+	 * Logical Collection as the control(s) to which it is to be applied.
+	 * If no Resolution Multiplier is defined, then the Resolution
+	 * Multiplier defaults to 1.  If more than one control exists in a
+	 * Logical Collection, the Resolution Multiplier is associated with
+	 * all controls in the collection. If no Logical Collection is
+	 * defined, the Resolution Multiplier is associated with all
+	 * controls in the report."
+	 * HID Usage Table, v1.12, Section 4.3.1, p30
+	 *
+	 * Thus, search from the current collection upwards until we find a
+	 * logical collection. Then search all fields for that same parent
+	 * collection. Those are the fields the multiplier applies to.
+	 *
+	 * If we have more than one multiplier, it will overwrite the
+	 * applicable fields later.
+	 */
+	multiplier_collection = &hid->collection[multiplier->usage->collection_index];
+	while (multiplier_collection &&
+	       multiplier_collection->type != HID_COLLECTION_LOGICAL)
+		multiplier_collection = multiplier_collection->parent;
+
+	effective_multiplier = hid_calculate_multiplier(hid, multiplier);
+
+	rep_enum = &hid->report_enum[HID_INPUT_REPORT];
+	list_for_each_entry(rep, &rep_enum->report_list, list) {
+		for (i = 0; i < rep->maxfield; i++) {
+			field = rep->field[i];
+			hid_apply_multiplier_to_field(hid, field,
+						      multiplier_collection,
+						      effective_multiplier);
+		}
+	}
+}
+
+/*
+ * hid_setup_resolution_multiplier - set up all resolution multipliers
+ *
+ * @device: hid device
+ *
+ * Search for all Resolution Multiplier Feature Reports and apply their
+ * value to all matching Input items. This only updates the internal struct
+ * fields.
+ *
+ * The Resolution Multiplier is applied by the hardware. If the multiplier
+ * is anything other than 1, the hardware will send pre-multiplied events
+ * so that the same physical interaction generates an accumulated
+ *	accumulated_value = value * * multiplier
+ * This may be achieved by sending
+ * - "value * multiplier" for each event, or
+ * - "value" but "multiplier" times as frequently, or
+ * - a combination of the above
+ * The only guarantee is that the same physical interaction always generates
+ * an accumulated 'value * multiplier'.
+ *
+ * This function must be called before any event processing and after
+ * any SetRequest to the Resolution Multiplier.
+ */
+void hid_setup_resolution_multiplier(struct hid_device *hid)
+{
+	struct hid_report_enum *rep_enum;
+	struct hid_report *rep;
+	struct hid_usage *usage;
+	int i, j;
+
+	rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
+	list_for_each_entry(rep, &rep_enum->report_list, list) {
+		for (i = 0; i < rep->maxfield; i++) {
+			/* Ignore if report count is out of bounds. */
+			if (rep->field[i]->report_count < 1)
+				continue;
+
+			for (j = 0; j < rep->field[i]->maxusage; j++) {
+				usage = &rep->field[i]->usage[j];
+				if (usage->hid == HID_GD_RESOLUTION_MULTIPLIER)
+					hid_apply_multiplier(hid,
+							     rep->field[i]);
+			}
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(hid_setup_resolution_multiplier);
+
 /**
  * hid_open_report - open a driver-specific device report
  *
@@ -1039,9 +1205,17 @@ int hid_open_report(struct hid_device *device)
 				hid_err(device, "unbalanced delimiter at end of report description\n");
 				goto err;
 			}
+
+			/*
+			 * fetch initial values in case the device's
+			 * default multiplier isn't the recommended 1
+			 */
+			hid_setup_resolution_multiplier(device);
+
 			kfree(parser->collection_stack);
 			vfree(parser);
 			device->status |= HID_STAT_PARSED;
+
 			return 0;
 		}
 	}

drivers/hid/hid-cougar.c

@@ -326,6 +326,8 @@ module_param_cb(g6_is_space, &cougar_g6_is_space_ops, &g6_is_space, 0644);
 static struct hid_device_id cougar_id_table[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SOLID_YEAR,
 			 USB_DEVICE_ID_COUGAR_500K_GAMING_KEYBOARD) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_SOLID_YEAR,
+			 USB_DEVICE_ID_COUGAR_700K_GAMING_KEYBOARD) },
 	{}
 };
 MODULE_DEVICE_TABLE(hid, cougar_id_table);

drivers/hid/hid-debug.c

@@ -1072,11 +1072,6 @@ static int hid_debug_rdesc_show(struct seq_file *f, void *p)
 	return 0;
 }
 
-static int hid_debug_rdesc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, hid_debug_rdesc_show, inode->i_private);
-}
-
 static int hid_debug_events_open(struct inode *inode, struct file *file)
 {
 	int err = 0;
@@ -1211,12 +1206,7 @@ static int hid_debug_events_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static const struct file_operations hid_debug_rdesc_fops = {
-	.open           = hid_debug_rdesc_open,
-	.read           = seq_read,
-	.llseek         = seq_lseek,
-	.release        = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(hid_debug_rdesc);
 
 static const struct file_operations hid_debug_events_fops = {
 	.owner =        THIS_MODULE,

drivers/hid/hid-ids.h

@@ -187,12 +187,14 @@
 #define USB_DEVICE_ID_ASUSTEK_T100TA_KEYBOARD	0x17e0
 #define USB_DEVICE_ID_ASUSTEK_T100TAF_KEYBOARD	0x1807
 #define USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD	0x8502
+#define USB_DEVICE_ID_ASUSTEK_T101HA_KEYBOARD	0x183d
 #define USB_DEVICE_ID_ASUSTEK_T304_KEYBOARD	0x184a
 #define USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD	0x8585
 #define USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD	0x0101
 #define USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1 0x1854
 #define USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2 0x1837
 #define USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3 0x1822
+#define USB_DEVICE_ID_ASUSTEK_FX503VD_KEYBOARD	0x1869
 
 #define USB_VENDOR_ID_ATEN		0x0557
 #define USB_DEVICE_ID_ATEN_UC100KM	0x2004
@@ -1025,6 +1027,7 @@
 
 #define USB_VENDOR_ID_SOLID_YEAR			0x060b
 #define USB_DEVICE_ID_COUGAR_500K_GAMING_KEYBOARD	0x500a
+#define USB_DEVICE_ID_COUGAR_700K_GAMING_KEYBOARD	0x700a
 
 #define USB_VENDOR_ID_SOUNDGRAPH	0x15c2
 #define USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST	0x0034

drivers/hid/hid-input.c

@@ -712,7 +712,15 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 				map_abs_clear(usage->hid & 0xf);
 			break;
 
-		case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
+		case HID_GD_WHEEL:
+			if (field->flags & HID_MAIN_ITEM_RELATIVE) {
+				set_bit(REL_WHEEL, input->relbit);
+				map_rel(REL_WHEEL_HI_RES);
+			} else {
+				map_abs(usage->hid & 0xf);
+			}
+			break;
+		case HID_GD_SLIDER: case HID_GD_DIAL:
 			if (field->flags & HID_MAIN_ITEM_RELATIVE)
 				map_rel(usage->hid & 0xf);
 			else
@@ -1012,7 +1020,10 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 		case 0x22f: map_key_clear(KEY_ZOOMRESET);	break;
 		case 0x233: map_key_clear(KEY_SCROLLUP);	break;
 		case 0x234: map_key_clear(KEY_SCROLLDOWN);	break;
-		case 0x238: map_rel(REL_HWHEEL);		break;
+		case 0x238: /* AC Pan */
+			set_bit(REL_HWHEEL, input->relbit);
+			map_rel(REL_HWHEEL_HI_RES);
+			break;
 		case 0x23d: map_key_clear(KEY_EDIT);		break;
 		case 0x25f: map_key_clear(KEY_CANCEL);		break;
 		case 0x269: map_key_clear(KEY_INSERT);		break;
@@ -1200,6 +1211,38 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 
 }
 
+static void hidinput_handle_scroll(struct hid_usage *usage,
+				   struct input_dev *input,
+				   __s32 value)
+{
+	int code;
+	int hi_res, lo_res;
+
+	if (value == 0)
+		return;
+
+	if (usage->code == REL_WHEEL_HI_RES)
+		code = REL_WHEEL;
+	else
+		code = REL_HWHEEL;
+
+	/*
+	 * Windows reports one wheel click as value 120. Where a high-res
+	 * scroll wheel is present, a fraction of 120 is reported instead.
+	 * Our REL_WHEEL_HI_RES axis does the same because all HW must
+	 * adhere to the 120 expectation.
+	 */
+	hi_res = value * 120/usage->resolution_multiplier;
+
+	usage->wheel_accumulated += hi_res;
+	lo_res = usage->wheel_accumulated/120;
+	if (lo_res)
+		usage->wheel_accumulated -= lo_res * 120;
+
+	input_event(input, EV_REL, code, lo_res);
+	input_event(input, EV_REL, usage->code, hi_res);
+}
+
 void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
 {
 	struct input_dev *input;
@@ -1262,6 +1305,12 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct
 	if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
 		return;
 
+	if ((usage->type == EV_REL) && (usage->code == REL_WHEEL_HI_RES ||
+					usage->code == REL_HWHEEL_HI_RES)) {
+		hidinput_handle_scroll(usage, input, value);
+		return;
+	}
+
 	if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
 			(usage->code == ABS_VOLUME)) {
 		int count = abs(value);
@@ -1489,6 +1538,58 @@ static void hidinput_close(struct input_dev *dev)
 	hid_hw_close(hid);
 }
 
+static void hidinput_change_resolution_multipliers(struct hid_device *hid)
+{
+	struct hid_report_enum *rep_enum;
+	struct hid_report *rep;
+	struct hid_usage *usage;
+	int i, j;
+
+	rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
+	list_for_each_entry(rep, &rep_enum->report_list, list) {
+		bool update_needed = false;
+
+		if (rep->maxfield == 0)
+			continue;
+
+		/*
+		 * If we have more than one feature within this report we
+		 * need to fill in the bits from the others before we can
+		 * overwrite the ones for the Resolution Multiplier.
+		 */
+		if (rep->maxfield > 1) {
+			hid_hw_request(hid, rep, HID_REQ_GET_REPORT);
+			hid_hw_wait(hid);
+		}
+
+		for (i = 0; i < rep->maxfield; i++) {
+			__s32 logical_max = rep->field[i]->logical_maximum;
+
+			/* There is no good reason for a Resolution
+			 * Multiplier to have a count other than 1.
+			 * Ignore that case.
+			 */
+			if (rep->field[i]->report_count != 1)
+				continue;
+
+			for (j = 0; j < rep->field[i]->maxusage; j++) {
+				usage = &rep->field[i]->usage[j];
+
+				if (usage->hid != HID_GD_RESOLUTION_MULTIPLIER)
+					continue;
+
+				*rep->field[i]->value = logical_max;
+				update_needed = true;
+			}
+		}
+		if (update_needed)
+			hid_hw_request(hid, rep, HID_REQ_SET_REPORT);
+	}
+
+	/* refresh our structs */
+	hid_setup_resolution_multiplier(hid);
+}
+
 static void report_features(struct hid_device *hid)
 {
 	struct hid_driver *drv = hid->driver;
@@ -1782,6 +1883,8 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
 		}
 	}
 
+	hidinput_change_resolution_multipliers(hid);
+
 	list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
 		if (drv->input_configured &&
 		    drv->input_configured(hid, hidinput))
@@ -1840,4 +1943,3 @@ void hidinput_disconnect(struct hid_device *hid)
 	cancel_work_sync(&hid->led_work);
 }
 EXPORT_SYMBOL_GPL(hidinput_disconnect);
-

drivers/hid/hid-lenovo.c

@@ -743,7 +743,9 @@ static int lenovo_probe_tpkbd(struct hid_device *hdev)
 	data_pointer->led_mute.brightness_get = lenovo_led_brightness_get_tpkbd;
 	data_pointer->led_mute.brightness_set = lenovo_led_brightness_set_tpkbd;
 	data_pointer->led_mute.dev = dev;
-	led_classdev_register(dev, &data_pointer->led_mute);
+	ret = led_classdev_register(dev, &data_pointer->led_mute);
+	if (ret < 0)
+		goto err;
 
 	data_pointer->led_micmute.name = name_micmute;
 	data_pointer->led_micmute.brightness_get =
@@ -751,7 +753,11 @@ static int lenovo_probe_tpkbd(struct hid_device *hdev)
 	data_pointer->led_micmute.brightness_set =
 		lenovo_led_brightness_set_tpkbd;
 	data_pointer->led_micmute.dev = dev;
-	led_classdev_register(dev, &data_pointer->led_micmute);
+	ret = led_classdev_register(dev, &data_pointer->led_micmute);
+	if (ret < 0) {
+		led_classdev_unregister(&data_pointer->led_mute);
+		goto err;
+	}
 
 	lenovo_features_set_tpkbd(hdev);
 

drivers/hid/hidraw.c

@@ -107,8 +107,6 @@ static ssize_t hidraw_read(struct file *file, char __user *buffer, size_t count,
 
 /*
  * The first byte of the report buffer is expected to be a report number.
- *
- * This function is to be called with the minors_lock mutex held.
  */
 static ssize_t hidraw_send_report(struct file *file, const char __user *buffer, size_t count, unsigned char report_type)
 {
@@ -117,6 +115,8 @@ static ssize_t hidraw_send_report(struct file *file, const char __user *buffer,
 	__u8 *buf;
 	int ret = 0;
 
+	lockdep_assert_held(&minors_lock);
+
 	if (!hidraw_table[minor] || !hidraw_table[minor]->exist) {
 		ret = -ENODEV;
 		goto out;
@@ -181,8 +181,6 @@ static ssize_t hidraw_write(struct file *file, const char __user *buffer, size_t
  * of buffer is the report number to request, or 0x0 if the defice does not
  * use numbered reports. The report_type parameter can be HID_FEATURE_REPORT
  * or HID_INPUT_REPORT.
- *
- * This function is to be called with the minors_lock mutex held.
  */
 static ssize_t hidraw_get_report(struct file *file, char __user *buffer, size_t count, unsigned char report_type)
 {
@@ -192,6 +190,8 @@ static ssize_t hidraw_get_report(struct file *file, char __user *buffer, size_t
 	int ret = 0, len;
 	unsigned char report_number;
 
+	lockdep_assert_held(&minors_lock);
+
 	if (!hidraw_table[minor] || !hidraw_table[minor]->exist) {
 		ret = -ENODEV;
 		goto out;

drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c

@@ -346,6 +346,14 @@ static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = {
 		},
 		.driver_data = (void *)&sipodev_desc
 	},
+	{
+		.ident = "Odys Winbook 13",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AXDIA International GmbH"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "WINBOOK 13"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
 	{ }	/* Terminate list */
 };
 

drivers/hid/intel-ish-hid/ipc/pci-ish.c

@@ -117,6 +117,7 @@ static int ish_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	int ret;
 	struct ish_hw *hw;
+	unsigned long irq_flag = 0;
 	struct ishtp_device *ishtp;
 	struct device *dev = &pdev->dev;
 
@@ -156,8 +157,12 @@ static int ish_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
 
 	/* request and enable interrupt */
+	ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
+	if (!pdev->msi_enabled && !pdev->msix_enabled)
+		irq_flag = IRQF_SHARED;
+
 	ret = devm_request_irq(dev, pdev->irq, ish_irq_handler,
-			       IRQF_SHARED, KBUILD_MODNAME, ishtp);
+			       irq_flag, KBUILD_MODNAME, ishtp);
 	if (ret) {
 		dev_err(dev, "ISH: request IRQ %d failed\n", pdev->irq);
 		return ret;

drivers/hid/intel-ish-hid/ishtp-hid.c

@@ -222,7 +222,7 @@ int ishtp_hid_probe(unsigned int cur_hid_dev,
 err_hid_device:
 	kfree(hid_data);
 err_hid_data:
-	kfree(hid);
+	hid_destroy_device(hid);
 	return rv;
 }
 

include/linux/hid.h

@@ -219,6 +219,7 @@ struct hid_item {
 #define HID_GD_VBRZ		0x00010045
 #define HID_GD_VNO		0x00010046
 #define HID_GD_FEATURE		0x00010047
+#define HID_GD_RESOLUTION_MULTIPLIER	0x00010048
 #define HID_GD_SYSTEM_CONTROL	0x00010080
 #define HID_GD_UP		0x00010090
 #define HID_GD_DOWN		0x00010091
@@ -232,12 +233,14 @@ struct hid_item {
 #define HID_DC_BATTERYSTRENGTH	0x00060020
 
 #define HID_CP_CONSUMER_CONTROL	0x000c0001
+#define HID_CP_AC_PAN		0x000c0238
 
 #define HID_DG_DIGITIZER	0x000d0001
 #define HID_DG_PEN		0x000d0002
 #define HID_DG_LIGHTPEN		0x000d0003
 #define HID_DG_TOUCHSCREEN	0x000d0004
 #define HID_DG_TOUCHPAD		0x000d0005
+#define HID_DG_WHITEBOARD	0x000d0006
 #define HID_DG_STYLUS		0x000d0020
 #define HID_DG_PUCK		0x000d0021
 #define HID_DG_FINGER		0x000d0022
@@ -427,6 +430,7 @@ struct hid_local {
  */
 
 struct hid_collection {
+	struct hid_collection *parent;
 	unsigned type;
 	unsigned usage;
 	unsigned level;
@@ -436,12 +440,16 @@ struct hid_usage {
 	unsigned  hid;			/* hid usage code */
 	unsigned  collection_index;	/* index into collection array */
 	unsigned  usage_index;		/* index into usage array */
+	__s8	  resolution_multiplier;/* Effective Resolution Multiplier
+					   (HUT v1.12, 4.3.1), default: 1 */
 	/* hidinput data */
+	__s8	  wheel_factor;		/* 120/resolution_multiplier */
 	__u16     code;			/* input driver code */
 	__u8      type;			/* input driver type */
 	__s8	  hat_min;		/* hat switch fun */
 	__s8	  hat_max;		/* ditto */
 	__s8	  hat_dir;		/* ditto */
+	__s16	  wheel_accumulated;	/* hi-res wheel */
 };
 
 struct hid_input;
@@ -650,6 +658,7 @@ struct hid_parser {
 	unsigned int         *collection_stack;
 	unsigned int          collection_stack_ptr;
 	unsigned int          collection_stack_size;
+	struct hid_collection *active_collection;
 	struct hid_device    *device;
 	unsigned int          scan_flags;
 };
@@ -836,7 +845,11 @@ static inline bool hid_is_using_ll_driver(struct hid_device *hdev,
 
 /* Applications from HID Usage Tables 4/8/99 Version 1.1 */
 /* We ignore a few input applications that are not widely used */
-#define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001) || ((a >= 0x000d0002) && (a <= 0x000d0006)))
+#define IS_INPUT_APPLICATION(a) \
+		(((a >= HID_UP_GENDESK) && (a <= HID_GD_MULTIAXIS)) \
+		|| ((a >= HID_DG_PEN) && (a <= HID_DG_WHITEBOARD)) \
+		|| (a == HID_GD_SYSTEM_CONTROL) || (a == HID_CP_CONSUMER_CONTROL) \
+		|| (a == HID_GD_WIRELESS_RADIO_CTLS))
 
 /* HID core API */
 
@@ -892,6 +905,8 @@ struct hid_report *hid_validate_values(struct hid_device *hid,
 				       unsigned int type, unsigned int id,
 				       unsigned int field_index,
 				       unsigned int report_counts);
+
+void hid_setup_resolution_multiplier(struct hid_device *hid);
 int hid_open_report(struct hid_device *device);
 int hid_check_keys_pressed(struct hid_device *hid);
 int hid_connect(struct hid_device *hid, unsigned int connect_mask);

include/uapi/linux/input-event-codes.h

@@ -716,6 +716,8 @@
  * the situation described above.
  */
 #define REL_RESERVED		0x0a
+#define REL_WHEEL_HI_RES	0x0b
+#define REL_HWHEEL_HI_RES	0x0c
 #define REL_MAX			0x0f
 #define REL_CNT			(REL_MAX+1)
 

samples/hidraw/hid-example.c

@@ -119,7 +119,7 @@ int main(int argc, char **argv)
 	if (res < 0)
 		perror("HIDIOCSFEATURE");
 	else
-		printf("ioctl HIDIOCGFEATURE returned: %d\n", res);
+		printf("ioctl HIDIOCSFEATURE returned: %d\n", res);
 
 	/* Get Feature */
 	buf[0] = 0x9; /* Report Number */