zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/hid/hid-wacom.c b/ap/os/linux/linux-3.4.x/drivers/hid/hid-wacom.c
new file mode 100644
index 0000000..067e296
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/hid/hid-wacom.c
@@ -0,0 +1,697 @@
+/*
+ *  Bluetooth Wacom Tablet support
+ *
+ *  Copyright (c) 1999 Andreas Gal
+ *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
+ *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
+ *  Copyright (c) 2006-2007 Jiri Kosina
+ *  Copyright (c) 2007 Paul Walmsley
+ *  Copyright (c) 2008 Jiri Slaby <jirislaby@gmail.com>
+ *  Copyright (c) 2006 Andrew Zabolotny <zap@homelink.ru>
+ *  Copyright (c) 2009 Bastien Nocera <hadess@hadess.net>
+ *  Copyright (c) 2011 Przemysław Firszt <przemo@firszt.eu>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#ifdef CONFIG_HID_WACOM_POWER_SUPPLY
+#include <linux/power_supply.h>
+#endif
+
+#include "hid-ids.h"
+
+#define PAD_DEVICE_ID	0x0F
+
+struct wacom_data {
+	__u16 tool;
+	__u16 butstate;
+	__u8 whlstate;
+	__u8 features;
+	__u32 id;
+	__u32 serial;
+	unsigned char high_speed;
+#ifdef CONFIG_HID_WACOM_POWER_SUPPLY
+	int battery_capacity;
+	struct power_supply battery;
+	struct power_supply ac;
+#endif
+};
+
+#ifdef CONFIG_HID_WACOM_POWER_SUPPLY
+/*percent of battery capacity, 0 means AC online*/
+static unsigned short batcap[8] = { 1, 15, 25, 35, 50, 70, 100, 0 };
+
+static enum power_supply_property wacom_battery_props[] = {
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_CAPACITY,
+	POWER_SUPPLY_PROP_SCOPE,
+};
+
+static enum power_supply_property wacom_ac_props[] = {
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_SCOPE,
+};
+
+static int wacom_battery_get_property(struct power_supply *psy,
+				enum power_supply_property psp,
+				union power_supply_propval *val)
+{
+	struct wacom_data *wdata = container_of(psy,
+					struct wacom_data, battery);
+	int power_state = batcap[wdata->battery_capacity];
+	int ret = 0;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_PRESENT:
+		val->intval = 1;
+		break;
+	case POWER_SUPPLY_PROP_SCOPE:
+		val->intval = POWER_SUPPLY_SCOPE_DEVICE;
+		break;
+	case POWER_SUPPLY_PROP_CAPACITY:
+		/* show 100% battery capacity when charging */
+		if (power_state == 0)
+			val->intval = 100;
+		else
+			val->intval = power_state;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+	return ret;
+}
+
+static int wacom_ac_get_property(struct power_supply *psy,
+				enum power_supply_property psp,
+				union power_supply_propval *val)
+{
+	struct wacom_data *wdata = container_of(psy, struct wacom_data, ac);
+	int power_state = batcap[wdata->battery_capacity];
+	int ret = 0;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_PRESENT:
+		/* fall through */
+	case POWER_SUPPLY_PROP_ONLINE:
+		if (power_state == 0)
+			val->intval = 1;
+		else
+			val->intval = 0;
+		break;
+	case POWER_SUPPLY_PROP_SCOPE:
+		val->intval = POWER_SUPPLY_SCOPE_DEVICE;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+	return ret;
+}
+#endif
+
+static void wacom_set_features(struct hid_device *hdev)
+{
+	int ret;
+	__u8 rep_data[2];
+
+	/*set high speed, tablet mode*/
+	rep_data[0] = 0x03;
+	rep_data[1] = 0x20;
+	ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
+				HID_FEATURE_REPORT);
+	return;
+}
+
+static void wacom_poke(struct hid_device *hdev, u8 speed)
+{
+	struct wacom_data *wdata = hid_get_drvdata(hdev);
+	int limit, ret;
+	char rep_data[2];
+
+	rep_data[0] = 0x03 ; rep_data[1] = 0x00;
+	limit = 3;
+	do {
+		ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
+				HID_FEATURE_REPORT);
+	} while (ret < 0 && limit-- > 0);
+
+	if (ret >= 0) {
+		if (speed == 0)
+			rep_data[0] = 0x05;
+		else
+			rep_data[0] = 0x06;
+
+		rep_data[1] = 0x00;
+		limit = 3;
+		do {
+			ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
+					HID_FEATURE_REPORT);
+		} while (ret < 0 && limit-- > 0);
+
+		if (ret >= 0) {
+			wdata->high_speed = speed;
+			return;
+		}
+	}
+
+	/*
+	 * Note that if the raw queries fail, it's not a hard failure and it
+	 * is safe to continue
+	 */
+	hid_warn(hdev, "failed to poke device, command %d, err %d\n",
+		 rep_data[0], ret);
+	return;
+}
+
+static ssize_t wacom_show_speed(struct device *dev,
+				struct device_attribute
+				*attr, char *buf)
+{
+	struct wacom_data *wdata = dev_get_drvdata(dev);
+
+	return snprintf(buf, PAGE_SIZE, "%i\n", wdata->high_speed);
+}
+
+static ssize_t wacom_store_speed(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	int new_speed;
+
+	if (sscanf(buf, "%1d", &new_speed ) != 1)
+		return -EINVAL;
+
+	if (new_speed == 0 || new_speed == 1) {
+		wacom_poke(hdev, new_speed);
+		return strnlen(buf, PAGE_SIZE);
+	} else
+		return -EINVAL;
+}
+
+static DEVICE_ATTR(speed, S_IRUGO | S_IWUSR | S_IWGRP,
+		wacom_show_speed, wacom_store_speed);
+
+static int wacom_gr_parse_report(struct hid_device *hdev,
+			struct wacom_data *wdata,
+			struct input_dev *input, unsigned char *data)
+{
+	int tool, x, y, rw;
+
+	tool = 0;
+	/* Get X & Y positions */
+	x = le16_to_cpu(*(__le16 *) &data[2]);
+	y = le16_to_cpu(*(__le16 *) &data[4]);
+
+	/* Get current tool identifier */
+	if (data[1] & 0x90) { /* If pen is in the in/active area */
+		switch ((data[1] >> 5) & 3) {
+		case 0:	/* Pen */
+			tool = BTN_TOOL_PEN;
+			break;
+
+		case 1: /* Rubber */
+			tool = BTN_TOOL_RUBBER;
+			break;
+
+		case 2: /* Mouse with wheel */
+		case 3: /* Mouse without wheel */
+			tool = BTN_TOOL_MOUSE;
+			break;
+		}
+
+		/* Reset tool if out of active tablet area */
+		if (!(data[1] & 0x10))
+			tool = 0;
+	}
+
+	/* If tool changed, notify input subsystem */
+	if (wdata->tool != tool) {
+		if (wdata->tool) {
+			/* Completely reset old tool state */
+			if (wdata->tool == BTN_TOOL_MOUSE) {
+				input_report_key(input, BTN_LEFT, 0);
+				input_report_key(input, BTN_RIGHT, 0);
+				input_report_key(input, BTN_MIDDLE, 0);
+				input_report_abs(input, ABS_DISTANCE,
+					input_abs_get_max(input, ABS_DISTANCE));
+			} else {
+				input_report_key(input, BTN_TOUCH, 0);
+				input_report_key(input, BTN_STYLUS, 0);
+				input_report_key(input, BTN_STYLUS2, 0);
+				input_report_abs(input, ABS_PRESSURE, 0);
+			}
+			input_report_key(input, wdata->tool, 0);
+			input_sync(input);
+		}
+		wdata->tool = tool;
+		if (tool)
+			input_report_key(input, tool, 1);
+	}
+
+	if (tool) {
+		input_report_abs(input, ABS_X, x);
+		input_report_abs(input, ABS_Y, y);
+
+		switch ((data[1] >> 5) & 3) {
+		case 2: /* Mouse with wheel */
+			input_report_key(input, BTN_MIDDLE, data[1] & 0x04);
+			rw = (data[6] & 0x01) ? -1 :
+				(data[6] & 0x02) ? 1 : 0;
+			input_report_rel(input, REL_WHEEL, rw);
+			/* fall through */
+
+		case 3: /* Mouse without wheel */
+			input_report_key(input, BTN_LEFT, data[1] & 0x01);
+			input_report_key(input, BTN_RIGHT, data[1] & 0x02);
+			/* Compute distance between mouse and tablet */
+			rw = 44 - (data[6] >> 2);
+			if (rw < 0)
+				rw = 0;
+			else if (rw > 31)
+				rw = 31;
+			input_report_abs(input, ABS_DISTANCE, rw);
+			break;
+
+		default:
+			input_report_abs(input, ABS_PRESSURE,
+					data[6] | (((__u16) (data[1] & 0x08)) << 5));
+			input_report_key(input, BTN_TOUCH, data[1] & 0x01);
+			input_report_key(input, BTN_STYLUS, data[1] & 0x02);
+			input_report_key(input, BTN_STYLUS2, (tool == BTN_TOOL_PEN) && data[1] & 0x04);
+			break;
+		}
+
+		input_sync(input);
+	}
+
+	/* Report the state of the two buttons at the top of the tablet
+	 * as two extra fingerpad keys (buttons 4 & 5). */
+	rw = data[7] & 0x03;
+	if (rw != wdata->butstate) {
+		wdata->butstate = rw;
+		input_report_key(input, BTN_0, rw & 0x02);
+		input_report_key(input, BTN_1, rw & 0x01);
+		input_report_key(input, BTN_TOOL_FINGER, 0xf0);
+		input_event(input, EV_MSC, MSC_SERIAL, 0xf0);
+		input_sync(input);
+	}
+
+#ifdef CONFIG_HID_WACOM_POWER_SUPPLY
+	/* Store current battery capacity */
+	rw = (data[7] >> 2 & 0x07);
+	if (rw != wdata->battery_capacity)
+		wdata->battery_capacity = rw;
+#endif
+	return 1;
+}
+
+static void wacom_i4_parse_button_report(struct wacom_data *wdata,
+			struct input_dev *input, unsigned char *data)
+{
+	__u16 new_butstate;
+	__u8 new_whlstate;
+	__u8 sync = 0;
+
+	new_whlstate = data[1];
+	if (new_whlstate != wdata->whlstate) {
+		wdata->whlstate = new_whlstate;
+		if (new_whlstate & 0x80) {
+			input_report_key(input, BTN_TOUCH, 1);
+			input_report_abs(input, ABS_WHEEL, (new_whlstate & 0x7f));
+			input_report_key(input, BTN_TOOL_FINGER, 1);
+		} else {
+			input_report_key(input, BTN_TOUCH, 0);
+			input_report_abs(input, ABS_WHEEL, 0);
+			input_report_key(input, BTN_TOOL_FINGER, 0);
+		}
+		sync = 1;
+	}
+
+	new_butstate = (data[3] << 1) | (data[2] & 0x01);
+	if (new_butstate != wdata->butstate) {
+		wdata->butstate = new_butstate;
+		input_report_key(input, BTN_0, new_butstate & 0x001);
+		input_report_key(input, BTN_1, new_butstate & 0x002);
+		input_report_key(input, BTN_2, new_butstate & 0x004);
+		input_report_key(input, BTN_3, new_butstate & 0x008);
+		input_report_key(input, BTN_4, new_butstate & 0x010);
+		input_report_key(input, BTN_5, new_butstate & 0x020);
+		input_report_key(input, BTN_6, new_butstate & 0x040);
+		input_report_key(input, BTN_7, new_butstate & 0x080);
+		input_report_key(input, BTN_8, new_butstate & 0x100);
+		input_report_key(input, BTN_TOOL_FINGER, 1);
+		sync = 1;
+	}
+
+	if (sync) {
+		input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
+		input_event(input, EV_MSC, MSC_SERIAL, 0xffffffff);
+		input_sync(input);
+	}
+}
+
+static void wacom_i4_parse_pen_report(struct wacom_data *wdata,
+			struct input_dev *input, unsigned char *data)
+{
+	__u16 x, y, pressure;
+	__u8 distance;
+
+	switch (data[1]) {
+	case 0x80: /* Out of proximity report */
+		input_report_key(input, BTN_TOUCH, 0);
+		input_report_abs(input, ABS_PRESSURE, 0);
+		input_report_key(input, BTN_STYLUS, 0);
+		input_report_key(input, BTN_STYLUS2, 0);
+		input_report_key(input, wdata->tool, 0);
+		input_report_abs(input, ABS_MISC, 0);
+		input_event(input, EV_MSC, MSC_SERIAL, wdata->serial);
+		wdata->tool = 0;
+		input_sync(input);
+		break;
+	case 0xC2: /* Tool report */
+		wdata->id = ((data[2] << 4) | (data[3] >> 4) |
+			((data[7] & 0x0f) << 20) |
+			((data[8] & 0xf0) << 12));
+		wdata->serial = ((data[3] & 0x0f) << 28) +
+				(data[4] << 20) + (data[5] << 12) +
+				(data[6] << 4) + (data[7] >> 4);
+
+		switch (wdata->id) {
+		case 0x100802:
+			wdata->tool = BTN_TOOL_PEN;
+			break;
+		case 0x10080A:
+			wdata->tool = BTN_TOOL_RUBBER;
+			break;
+		}
+		break;
+	default: /* Position/pressure report */
+		x = data[2] << 9 | data[3] << 1 | ((data[9] & 0x02) >> 1);
+		y = data[4] << 9 | data[5] << 1 | (data[9] & 0x01);
+		pressure = (data[6] << 3) | ((data[7] & 0xC0) >> 5)
+			| (data[1] & 0x01);
+		distance = (data[9] >> 2) & 0x3f;
+
+		input_report_key(input, BTN_TOUCH, pressure > 1);
+
+		input_report_key(input, BTN_STYLUS, data[1] & 0x02);
+		input_report_key(input, BTN_STYLUS2, data[1] & 0x04);
+		input_report_key(input, wdata->tool, 1);
+		input_report_abs(input, ABS_X, x);
+		input_report_abs(input, ABS_Y, y);
+		input_report_abs(input, ABS_PRESSURE, pressure);
+		input_report_abs(input, ABS_DISTANCE, distance);
+		input_report_abs(input, ABS_MISC, wdata->id);
+		input_event(input, EV_MSC, MSC_SERIAL, wdata->serial);
+		input_report_key(input, wdata->tool, 1);
+		input_sync(input);
+		break;
+	}
+
+	return;
+}
+
+static void wacom_i4_parse_report(struct hid_device *hdev,
+			struct wacom_data *wdata,
+			struct input_dev *input, unsigned char *data)
+{
+	switch (data[0]) {
+	case 0x00: /* Empty report */
+		break;
+	case 0x02: /* Pen report */
+		wacom_i4_parse_pen_report(wdata, input, data);
+		break;
+	case 0x03: /* Features Report */
+		wdata->features = data[2];
+		break;
+	case 0x0C: /* Button report */
+		wacom_i4_parse_button_report(wdata, input, data);
+		break;
+	default:
+		hid_err(hdev, "Unknown report: %d,%d\n", data[0], data[1]);
+		break;
+	}
+}
+
+static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
+		u8 *raw_data, int size)
+{
+	struct wacom_data *wdata = hid_get_drvdata(hdev);
+	struct hid_input *hidinput;
+	struct input_dev *input;
+	unsigned char *data = (unsigned char *) raw_data;
+	int i;
+
+	if (!(hdev->claimed & HID_CLAIMED_INPUT))
+		return 0;
+
+	hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
+	input = hidinput->input;
+
+	/* Check if this is a tablet report */
+	if (data[0] != 0x03)
+		return 0;
+
+	switch (hdev->product) {
+	case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
+		return wacom_gr_parse_report(hdev, wdata, input, data);
+		break;
+	case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
+		i = 1;
+
+		switch (data[0]) {
+		case 0x04:
+			wacom_i4_parse_report(hdev, wdata, input, data + i);
+			i += 10;
+			/* fall through */
+		case 0x03:
+			wacom_i4_parse_report(hdev, wdata, input, data + i);
+			i += 10;
+			wacom_i4_parse_report(hdev, wdata, input, data + i);
+			break;
+		default:
+			hid_err(hdev, "Unknown report: %d,%d size:%d\n",
+					data[0], data[1], size);
+			return 0;
+		}
+	}
+	return 1;
+}
+
+static int wacom_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+	struct hid_field *field, struct hid_usage *usage, unsigned long **bit,
+								int *max)
+{
+	struct input_dev *input = hi->input;
+
+	__set_bit(INPUT_PROP_POINTER, input->propbit);
+
+	/* Basics */
+	input->evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_REL);
+
+	__set_bit(REL_WHEEL, input->relbit);
+
+	__set_bit(BTN_TOOL_PEN, input->keybit);
+	__set_bit(BTN_TOUCH, input->keybit);
+	__set_bit(BTN_STYLUS, input->keybit);
+	__set_bit(BTN_STYLUS2, input->keybit);
+	__set_bit(BTN_LEFT, input->keybit);
+	__set_bit(BTN_RIGHT, input->keybit);
+	__set_bit(BTN_MIDDLE, input->keybit);
+
+	/* Pad */
+	input_set_capability(input, EV_MSC, MSC_SERIAL);
+
+	__set_bit(BTN_0, input->keybit);
+	__set_bit(BTN_1, input->keybit);
+	__set_bit(BTN_TOOL_FINGER, input->keybit);
+
+	/* Distance, rubber and mouse */
+	__set_bit(BTN_TOOL_RUBBER, input->keybit);
+	__set_bit(BTN_TOOL_MOUSE, input->keybit);
+
+	switch (hdev->product) {
+	case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
+		input_set_abs_params(input, ABS_X, 0, 16704, 4, 0);
+		input_set_abs_params(input, ABS_Y, 0, 12064, 4, 0);
+		input_set_abs_params(input, ABS_PRESSURE, 0, 511, 0, 0);
+		input_set_abs_params(input, ABS_DISTANCE, 0, 32, 0, 0);
+		break;
+	case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
+		__set_bit(ABS_WHEEL, input->absbit);
+		__set_bit(ABS_MISC, input->absbit);
+		__set_bit(BTN_2, input->keybit);
+		__set_bit(BTN_3, input->keybit);
+		__set_bit(BTN_4, input->keybit);
+		__set_bit(BTN_5, input->keybit);
+		__set_bit(BTN_6, input->keybit);
+		__set_bit(BTN_7, input->keybit);
+		__set_bit(BTN_8, input->keybit);
+		input_set_abs_params(input, ABS_WHEEL, 0, 71, 0, 0);
+		input_set_abs_params(input, ABS_X, 0, 40640, 4, 0);
+		input_set_abs_params(input, ABS_Y, 0, 25400, 4, 0);
+		input_set_abs_params(input, ABS_PRESSURE, 0, 2047, 0, 0);
+		input_set_abs_params(input, ABS_DISTANCE, 0, 63, 0, 0);
+		break;
+	}
+
+	return 0;
+}
+
+static int wacom_probe(struct hid_device *hdev,
+		const struct hid_device_id *id)
+{
+	struct wacom_data *wdata;
+	int ret;
+
+	wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
+	if (wdata == NULL) {
+		hid_err(hdev, "can't alloc wacom descriptor\n");
+		return -ENOMEM;
+	}
+
+	hid_set_drvdata(hdev, wdata);
+
+	/* Parse the HID report now */
+	ret = hid_parse(hdev);
+	if (ret) {
+		hid_err(hdev, "parse failed\n");
+		goto err_free;
+	}
+
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+	if (ret) {
+		hid_err(hdev, "hw start failed\n");
+		goto err_free;
+	}
+
+	ret = device_create_file(&hdev->dev, &dev_attr_speed);
+	if (ret)
+		hid_warn(hdev,
+			 "can't create sysfs speed attribute err: %d\n", ret);
+
+	switch (hdev->product) {
+	case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
+		/* Set Wacom mode 2 with high reporting speed */
+		wacom_poke(hdev, 1);
+		break;
+	case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
+		sprintf(hdev->name, "%s", "Wacom Intuos4 WL");
+		wdata->features = 0;
+		wacom_set_features(hdev);
+		break;
+	}
+
+#ifdef CONFIG_HID_WACOM_POWER_SUPPLY
+	wdata->battery.properties = wacom_battery_props;
+	wdata->battery.num_properties = ARRAY_SIZE(wacom_battery_props);
+	wdata->battery.get_property = wacom_battery_get_property;
+	wdata->battery.name = "wacom_battery";
+	wdata->battery.type = POWER_SUPPLY_TYPE_BATTERY;
+	wdata->battery.use_for_apm = 0;
+
+
+	ret = power_supply_register(&hdev->dev, &wdata->battery);
+	if (ret) {
+		hid_warn(hdev, "can't create sysfs battery attribute, err: %d\n",
+			 ret);
+		goto err_battery;
+	}
+
+	power_supply_powers(&wdata->battery, &hdev->dev);
+
+	wdata->ac.properties = wacom_ac_props;
+	wdata->ac.num_properties = ARRAY_SIZE(wacom_ac_props);
+	wdata->ac.get_property = wacom_ac_get_property;
+	wdata->ac.name = "wacom_ac";
+	wdata->ac.type = POWER_SUPPLY_TYPE_MAINS;
+	wdata->ac.use_for_apm = 0;
+
+	ret = power_supply_register(&hdev->dev, &wdata->ac);
+	if (ret) {
+		hid_warn(hdev,
+			 "can't create ac battery attribute, err: %d\n", ret);
+		goto err_ac;
+	}
+
+	power_supply_powers(&wdata->ac, &hdev->dev);
+#endif
+	return 0;
+
+#ifdef CONFIG_HID_WACOM_POWER_SUPPLY
+err_ac:
+	power_supply_unregister(&wdata->battery);
+err_battery:
+	device_remove_file(&hdev->dev, &dev_attr_speed);
+	hid_hw_stop(hdev);
+#endif
+err_free:
+	kfree(wdata);
+	return ret;
+}
+
+static void wacom_remove(struct hid_device *hdev)
+{
+#ifdef CONFIG_HID_WACOM_POWER_SUPPLY
+	struct wacom_data *wdata = hid_get_drvdata(hdev);
+#endif
+	device_remove_file(&hdev->dev, &dev_attr_speed);
+	hid_hw_stop(hdev);
+
+#ifdef CONFIG_HID_WACOM_POWER_SUPPLY
+	power_supply_unregister(&wdata->battery);
+	power_supply_unregister(&wdata->ac);
+#endif
+	kfree(hid_get_drvdata(hdev));
+}
+
+static const struct hid_device_id wacom_devices[] = {
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
+
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, wacom_devices);
+
+static struct hid_driver wacom_driver = {
+	.name = "wacom",
+	.id_table = wacom_devices,
+	.probe = wacom_probe,
+	.remove = wacom_remove,
+	.raw_event = wacom_raw_event,
+	.input_mapped = wacom_input_mapped,
+};
+
+static int __init wacom_init(void)
+{
+	int ret;
+
+	ret = hid_register_driver(&wacom_driver);
+	if (ret)
+		pr_err("can't register wacom driver\n");
+	return ret;
+}
+
+static void __exit wacom_exit(void)
+{
+	hid_unregister_driver(&wacom_driver);
+}
+
+module_init(wacom_init);
+module_exit(wacom_exit);
+MODULE_LICENSE("GPL");
+