summaryrefslogtreecommitdiff
path: root/drivers/hid/hid-wacom.c
diff options
context:
space:
mode:
authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /drivers/hid/hid-wacom.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
downloadFOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz
FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2
FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'drivers/hid/hid-wacom.c')
-rw-r--r--drivers/hid/hid-wacom.c697
1 files changed, 697 insertions, 0 deletions
diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
new file mode 100644
index 00000000..067e2963
--- /dev/null
+++ b/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");
+