- 根目录:
- drivers
- hid
- hid-wacom.c
/*
* 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) 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/leds.h>
#include <linux/slab.h>
#include <linux/power_supply.h>
#include "hid-ids.h"
#define PAD_DEVICE_ID 0x0F
#define WAC_CMD_LED_CONTROL 0x20
#define WAC_CMD_ICON_START_STOP 0x21
#define WAC_CMD_ICON_TRANSFER 0x26
struct wacom_data {
__u16 tool;
__u16 butstate;
__u8 whlstate;
__u8 features;
__u32 id;
__u32 serial;
unsigned char high_speed;
__u8 battery_capacity;
__u8 power_raw;
__u8 ps_connected;
struct power_supply battery;
struct power_supply ac;
__u8 led_selector;
struct led_classdev *leds[4];
};
/*percent of battery capacity for Graphire
8th value means AC online and show 100% capacity */
static unsigned short batcap_gr[8] = { 1, 15, 25, 35, 50, 70, 100, 100 };
/*percent of battery capacity for Intuos4 WL, AC has a separate bit*/
static unsigned short batcap_i4[8] = { 1, 15, 30, 45, 60, 70, 85, 100 };
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 void wacom_scramble(__u8 *image)
{
__u16 mask;
__u16 s1;
__u16 s2;
__u16 r1 ;
__u16 r2 ;
__u16 r;
__u8 buf[256];
int i, w, x, y, z;
for (x = 0; x < 32; x++) {
for (y = 0; y < 8; y++)
buf[(8 * x) + (7 - y)] = image[(8 * x) + y];
}
/* Change 76543210 into GECA6420 as required by Intuos4 WL
* HGFEDCBA HFDB7531
*/
for (x = 0; x < 4; x++) {
for (y = 0; y < 4; y++) {
for (z = 0; z < 8; z++) {
mask = 0x0001;
r1 = 0;
r2 = 0;
i = (x << 6) + (y << 4) + z;
s1 = buf[i];
s2 = buf[i+8];
for (w = 0; w < 8; w++) {
r1 |= (s1 & mask);
r2 |= (s2 & mask);
s1 <<= 1;
s2 <<= 1;
mask <<= 2;
}
r = r1 | (r2 << 1);
i = (x << 6) + (y << 4) + (z << 1);
image[i] = 0xFF & r;
image[i+1] = (0xFF00 & r) >> 8;
}
}
}
}
static void wacom_set_image(struct hid_device *hdev, const char *image,
__u8 icon_no)
{
__u8 rep_data[68];
__u8 p[256];
int ret, i, j;
for (i = 0; i < 256; i++)
p[i] = image[i];
rep_data[0] = WAC_CMD_ICON_START_STOP;
rep_data[1] = 0;
ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
HID_FEATURE_REPORT);
if (ret < 0)
goto err;
rep_data[0] = WAC_CMD_ICON_TRANSFER;
rep_data[1] = icon_no & 0x07;
wacom_scramble(p);
for (i = 0; i < 4; i++) {
for (j = 0; j < 64; j++)
rep_data[j + 3] = p[(i << 6) + j];
rep_data[2] = i;
ret = hdev->hid_output_raw_report(hdev, rep_data, 67,
HID_FEATURE_REPORT);
}
rep_data[0] = WAC_CMD_ICON_START_STOP;
rep_data[1] = 0;
ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
HID_FEATURE_REPORT);
err:
return;
}
static void wacom_leds_set_brightness(struct led_classdev *led_dev,
enum led_brightness value)
{
struct device *dev = led_dev->dev->parent;
struct hid_device *hdev;
struct wacom_data *wdata;
unsigned char *buf;
__u8 led = 0;
int i;
hdev = container_of(dev, struct hid_device, dev);
wdata = hid_get_drvdata(hdev);
for (i = 0; i < 4; ++i) {
if (wdata->leds[i] == led_dev)
wdata->led_selector = i;
}
led = wdata->led_selector | 0x04;
buf = kzalloc(9, GFP_KERNEL);
if (buf) {
buf[0] = WAC_CMD_LED_CONTROL;
buf[1] = led;
buf[2] = value >> 2;
buf[3] = value;
/* use fixed brightness for OLEDs */
buf[4] = 0x08;
hdev->hid_output_raw_report(hdev, buf, 9, HID_FEATURE_REPORT);
kfree(buf);
}
return;
}
static enum led_brightness wacom_leds_get_brightness(struct led_classdev *led_dev)
{
struct wacom_data *wdata;
struct device *dev = led_dev->dev->parent;
int value = 0;
int i;
wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
for (i = 0; i < 4; ++i) {
if (wdata->leds[i] == led_dev) {
value = wdata->leds[i]->brightness;
break;
}
}
return value;
}
static int wacom_initialize_leds(struct hid_device *hdev)
{
struct wacom_data *wdata = hid_get_drvdata(hdev);
struct led_classdev *led;
struct device *dev = &hdev->dev;
size_t namesz = strlen(dev_name(dev)) + 12;
char *name;
int i, ret;
wdata->led_selector = 0;
for (i = 0; i < 4; i++) {
led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
if (!led) {
hid_warn(hdev,
"can't allocate memory for LED selector\n");
ret = -ENOMEM;
goto err;
}
name = (void *)&led[1];
snprintf(name, namesz, "%s:selector:%d", dev_name(dev), i);
led->name = name;
led->brightness = 0;
led->max_brightness = 127;
led->brightness_get = wacom_leds_get_brightness;
led->brightness_set = wacom_leds_set_brightness;
wdata->leds[i] = led;
ret = led_classdev_register(dev, wdata->leds[i]);
if (ret) {
wdata->leds[i] = NULL;
kfree(led);
hid_warn(hdev, "can't register LED\n");
goto err;
}
}
err:
return ret;
}
static void wacom_destroy_leds(struct hid_device *hdev)
{
struct wacom_data *wdata = hid_get_drvdata(hdev);
struct led_classdev *led;
int i;
for (i = 0; i < 4; ++i) {
if (wdata->leds[i]) {
led = wdata->leds[i];
wdata->leds[i] = NULL;
led_classdev_unregister(led);
kfree(led);
}
}
}
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 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:
val->intval = wdata->battery_capacity;
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 ret = 0;
switch (psp) {
case POWER_SUPPLY_PROP_PRESENT:
/* fall through */
case POWER_SUPPLY_PROP_ONLINE:
val->intval = wdata->ps_connected;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static void wacom_set_features(struct hid_device *hdev, u8 speed)
{
struct wacom_data *wdata = hid_get_drvdata(hdev);
int limit, ret;
__u8 rep_data[2];
switch (hdev->product) {
case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
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);
break;
case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
if (speed == 1)
wdata->features &= ~0x20;
else
wdata->features |= 0x20;
rep_data[0] = 0x03;
rep_data[1] = wdata->features;
ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
HID_FEATURE_REPORT);
if (ret >= 0)
wdata->high_speed = speed;
break;
}
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_set_features(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);
#define WACOM_STORE(OLED_ID) \
static ssize_t wacom_oled##OLED_ID##_store(struct device *dev, \
struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
struct hid_device *hdev = container_of(dev, struct hid_device, \
dev); \
\
if (count != 256) \
return -EINVAL; \
\
wacom_set_image(hdev, buf, OLED_ID); \
\
return count; \
} \
\
static DEVICE_ATTR(oled##OLED_ID##_img, S_IWUSR | S_IWGRP, NULL, \
wacom_oled##OLED_ID##_store)
WACOM_STORE(0);
WACOM_STORE(1);
WACOM_STORE(2);
WACOM_STORE(3);
WACOM_STORE(4);
WACOM_STORE(5);
WACOM_STORE(6);
WACOM_STORE(7);
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);
}
/* Store current battery capacity and power supply state*/
rw = (data[7] >> 2 & 0x07);
if (rw != wdata->power_raw) {
wdata->power_raw = rw;
wdata->battery_capacity = batcap_gr[rw];
if (rw == 7)
wdata->ps_connected = 1;
else
wdata->ps_connected = 0;
}
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;
__u8 tilt_x, tilt_y;
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;
tilt_x = ((data[7] << 1) & 0x7e) | (data[8] >> 7);
tilt_y = data[8] & 0x7f;
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_TILT_X, tilt_x);
input_report_abs(input, ABS_TILT_Y, tilt_y);
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;
__u8 power_raw;
if (!(hdev->claimed & HID_CLAIMED_INPUT))
return 0;
hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
input = hidinput->input;
switch (hdev->product) {
case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
if (data[0] == 0x03) {
return wacom_gr_parse_report(hdev, wdata, input, data);
} else {
hid_err(hdev, "Unknown report: %d,%d size:%d\n",
data[0], data[1], size);
return 0;
}
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);
power_raw = data[i+10];
if (power_raw != wdata->power_raw) {
wdata->power_raw = power_raw;
wdata->battery_capacity = batcap_i4[power_raw & 0x07];
wdata->ps_connected = power_raw & 0x08;
}
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);
input_set_abs_params(input, ABS_TILT_X, 0, 127, 0, 0);
input_set_abs_params(input, ABS_TILT_Y, 0, 127, 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);
#define OLED_INIT(OLED_ID) \
do { \
ret = device_create_file(&hdev->dev, \
&dev_attr_oled##OLED_ID##_img); \
if (ret) \
hid_warn(hdev, \
"can't create sysfs oled attribute, err: %d\n", ret);\
} while (0)
OLED_INIT(0);
OLED_INIT(1);
OLED_INIT(2);
OLED_INIT(3);
OLED_INIT(4);
OLED_INIT(5);
OLED_INIT(6);
OLED_INIT(7);
wdata->features = 0;
wacom_set_features(hdev, 1);
if (hdev->product == USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) {
sprintf(hdev->name, "%s", "Wacom Intuos4 WL");
ret = wacom_initialize_leds(hdev);
if (ret)
hid_warn(hdev,
"can't create led attribute, err: %d\n", ret);
}
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_err(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_err(hdev,
"can't create ac battery attribute, err: %d\n", ret);
goto err_ac;
}
power_supply_powers(&wdata->ac, &hdev->dev);
return 0;
err_ac:
power_supply_unregister(&wdata->battery);
err_battery:
wacom_destroy_leds(hdev);
device_remove_file(&hdev->dev, &dev_attr_oled0_img);
device_remove_file(&hdev->dev, &dev_attr_oled1_img);
device_remove_file(&hdev->dev, &dev_attr_oled2_img);
device_remove_file(&hdev->dev, &dev_attr_oled3_img);
device_remove_file(&hdev->dev, &dev_attr_oled4_img);
device_remove_file(&hdev->dev, &dev_attr_oled5_img);
device_remove_file(&hdev->dev, &dev_attr_oled6_img);
device_remove_file(&hdev->dev, &dev_attr_oled7_img);
device_remove_file(&hdev->dev, &dev_attr_speed);
hid_hw_stop(hdev);
err_free:
kfree(wdata);
return ret;
}
static void wacom_remove(struct hid_device *hdev)
{
struct wacom_data *wdata = hid_get_drvdata(hdev);
wacom_destroy_leds(hdev);
device_remove_file(&hdev->dev, &dev_attr_oled0_img);
device_remove_file(&hdev->dev, &dev_attr_oled1_img);
device_remove_file(&hdev->dev, &dev_attr_oled2_img);
device_remove_file(&hdev->dev, &dev_attr_oled3_img);
device_remove_file(&hdev->dev, &dev_attr_oled4_img);
device_remove_file(&hdev->dev, &dev_attr_oled5_img);
device_remove_file(&hdev->dev, &dev_attr_oled6_img);
device_remove_file(&hdev->dev, &dev_attr_oled7_img);
device_remove_file(&hdev->dev, &dev_attr_speed);
hid_hw_stop(hdev);
power_supply_unregister(&wdata->battery);
power_supply_unregister(&wdata->ac);
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,
};
module_hid_driver(wacom_driver);
MODULE_DESCRIPTION("Driver for Wacom Graphire Bluetooth and Wacom Intuos4 WL");
MODULE_LICENSE("GPL");