447 lines
11 KiB
C
447 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* USB Hanwang tablet support
|
|
*
|
|
* Copyright (c) 2010 Xing Wei <weixing@hanwang.com.cn>
|
|
*/
|
|
|
|
/*
|
|
*/
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/module.h>
|
|
#include <linux/usb/input.h>
|
|
|
|
MODULE_AUTHOR("Xing Wei <weixing@hanwang.com.cn>");
|
|
MODULE_DESCRIPTION("USB Hanwang tablet driver");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
#define USB_VENDOR_ID_HANWANG 0x0b57
|
|
#define HANWANG_TABLET_INT_CLASS 0x0003
|
|
#define HANWANG_TABLET_INT_SUB_CLASS 0x0001
|
|
#define HANWANG_TABLET_INT_PROTOCOL 0x0002
|
|
|
|
#define ART_MASTER_PKGLEN_MAX 10
|
|
|
|
/* device IDs */
|
|
#define STYLUS_DEVICE_ID 0x02
|
|
#define TOUCH_DEVICE_ID 0x03
|
|
#define CURSOR_DEVICE_ID 0x06
|
|
#define ERASER_DEVICE_ID 0x0A
|
|
#define PAD_DEVICE_ID 0x0F
|
|
|
|
/* match vendor and interface info */
|
|
#define HANWANG_TABLET_DEVICE(vend, cl, sc, pr) \
|
|
.match_flags = USB_DEVICE_ID_MATCH_VENDOR \
|
|
| USB_DEVICE_ID_MATCH_INT_INFO, \
|
|
.idVendor = (vend), \
|
|
.bInterfaceClass = (cl), \
|
|
.bInterfaceSubClass = (sc), \
|
|
.bInterfaceProtocol = (pr)
|
|
|
|
enum hanwang_tablet_type {
|
|
HANWANG_ART_MASTER_III,
|
|
HANWANG_ART_MASTER_HD,
|
|
HANWANG_ART_MASTER_II,
|
|
};
|
|
|
|
struct hanwang {
|
|
unsigned char *data;
|
|
dma_addr_t data_dma;
|
|
struct input_dev *dev;
|
|
struct usb_device *usbdev;
|
|
struct urb *irq;
|
|
const struct hanwang_features *features;
|
|
unsigned int current_tool;
|
|
unsigned int current_id;
|
|
char name[64];
|
|
char phys[32];
|
|
};
|
|
|
|
struct hanwang_features {
|
|
unsigned short pid;
|
|
char *name;
|
|
enum hanwang_tablet_type type;
|
|
int pkg_len;
|
|
int max_x;
|
|
int max_y;
|
|
int max_tilt_x;
|
|
int max_tilt_y;
|
|
int max_pressure;
|
|
};
|
|
|
|
static const struct hanwang_features features_array[] = {
|
|
{ 0x8528, "Hanwang Art Master III 0906", HANWANG_ART_MASTER_III,
|
|
ART_MASTER_PKGLEN_MAX, 0x5757, 0x3692, 0x3f, 0x7f, 2048 },
|
|
{ 0x8529, "Hanwang Art Master III 0604", HANWANG_ART_MASTER_III,
|
|
ART_MASTER_PKGLEN_MAX, 0x3d84, 0x2672, 0x3f, 0x7f, 2048 },
|
|
{ 0x852a, "Hanwang Art Master III 1308", HANWANG_ART_MASTER_III,
|
|
ART_MASTER_PKGLEN_MAX, 0x7f00, 0x4f60, 0x3f, 0x7f, 2048 },
|
|
{ 0x8401, "Hanwang Art Master HD 5012", HANWANG_ART_MASTER_HD,
|
|
ART_MASTER_PKGLEN_MAX, 0x678e, 0x4150, 0x3f, 0x7f, 1024 },
|
|
{ 0x8503, "Hanwang Art Master II", HANWANG_ART_MASTER_II,
|
|
ART_MASTER_PKGLEN_MAX, 0x27de, 0x1cfe, 0x3f, 0x7f, 1024 },
|
|
};
|
|
|
|
static const int hw_eventtypes[] = {
|
|
EV_KEY, EV_ABS, EV_MSC,
|
|
};
|
|
|
|
static const int hw_absevents[] = {
|
|
ABS_X, ABS_Y, ABS_TILT_X, ABS_TILT_Y, ABS_WHEEL,
|
|
ABS_RX, ABS_RY, ABS_PRESSURE, ABS_MISC,
|
|
};
|
|
|
|
static const int hw_btnevents[] = {
|
|
BTN_STYLUS, BTN_STYLUS2, BTN_TOOL_PEN, BTN_TOOL_RUBBER,
|
|
BTN_TOOL_MOUSE, BTN_TOOL_FINGER,
|
|
BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8,
|
|
};
|
|
|
|
static const int hw_mscevents[] = {
|
|
MSC_SERIAL,
|
|
};
|
|
|
|
static void hanwang_parse_packet(struct hanwang *hanwang)
|
|
{
|
|
unsigned char *data = hanwang->data;
|
|
struct input_dev *input_dev = hanwang->dev;
|
|
struct usb_device *dev = hanwang->usbdev;
|
|
enum hanwang_tablet_type type = hanwang->features->type;
|
|
int i;
|
|
u16 p;
|
|
|
|
if (type == HANWANG_ART_MASTER_II) {
|
|
hanwang->current_tool = BTN_TOOL_PEN;
|
|
hanwang->current_id = STYLUS_DEVICE_ID;
|
|
}
|
|
|
|
switch (data[0]) {
|
|
case 0x02: /* data packet */
|
|
switch (data[1]) {
|
|
case 0x80: /* tool prox out */
|
|
if (type != HANWANG_ART_MASTER_II) {
|
|
hanwang->current_id = 0;
|
|
input_report_key(input_dev,
|
|
hanwang->current_tool, 0);
|
|
}
|
|
break;
|
|
|
|
case 0x00: /* artmaster ii pen leave */
|
|
if (type == HANWANG_ART_MASTER_II) {
|
|
hanwang->current_id = 0;
|
|
input_report_key(input_dev,
|
|
hanwang->current_tool, 0);
|
|
}
|
|
break;
|
|
|
|
case 0xc2: /* first time tool prox in */
|
|
switch (data[3] & 0xf0) {
|
|
case 0x20: /* art_master III */
|
|
case 0x30: /* art_master_HD */
|
|
hanwang->current_id = STYLUS_DEVICE_ID;
|
|
hanwang->current_tool = BTN_TOOL_PEN;
|
|
input_report_key(input_dev, BTN_TOOL_PEN, 1);
|
|
break;
|
|
case 0xa0: /* art_master III */
|
|
case 0xb0: /* art_master_HD */
|
|
hanwang->current_id = ERASER_DEVICE_ID;
|
|
hanwang->current_tool = BTN_TOOL_RUBBER;
|
|
input_report_key(input_dev, BTN_TOOL_RUBBER, 1);
|
|
break;
|
|
default:
|
|
hanwang->current_id = 0;
|
|
dev_dbg(&dev->dev,
|
|
"unknown tablet tool %02x\n", data[0]);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default: /* tool data packet */
|
|
switch (type) {
|
|
case HANWANG_ART_MASTER_III:
|
|
p = (data[6] << 3) |
|
|
((data[7] & 0xc0) >> 5) |
|
|
(data[1] & 0x01);
|
|
break;
|
|
|
|
case HANWANG_ART_MASTER_HD:
|
|
case HANWANG_ART_MASTER_II:
|
|
p = (data[7] >> 6) | (data[6] << 2);
|
|
break;
|
|
|
|
default:
|
|
p = 0;
|
|
break;
|
|
}
|
|
|
|
input_report_abs(input_dev, ABS_X,
|
|
be16_to_cpup((__be16 *)&data[2]));
|
|
input_report_abs(input_dev, ABS_Y,
|
|
be16_to_cpup((__be16 *)&data[4]));
|
|
input_report_abs(input_dev, ABS_PRESSURE, p);
|
|
input_report_abs(input_dev, ABS_TILT_X, data[7] & 0x3f);
|
|
input_report_abs(input_dev, ABS_TILT_Y, data[8] & 0x7f);
|
|
input_report_key(input_dev, BTN_STYLUS, data[1] & 0x02);
|
|
|
|
if (type != HANWANG_ART_MASTER_II)
|
|
input_report_key(input_dev, BTN_STYLUS2,
|
|
data[1] & 0x04);
|
|
else
|
|
input_report_key(input_dev, BTN_TOOL_PEN, 1);
|
|
|
|
break;
|
|
}
|
|
|
|
input_report_abs(input_dev, ABS_MISC, hanwang->current_id);
|
|
input_event(input_dev, EV_MSC, MSC_SERIAL,
|
|
hanwang->features->pid);
|
|
break;
|
|
|
|
case 0x0c:
|
|
/* roll wheel */
|
|
hanwang->current_id = PAD_DEVICE_ID;
|
|
|
|
switch (type) {
|
|
case HANWANG_ART_MASTER_III:
|
|
input_report_key(input_dev, BTN_TOOL_FINGER,
|
|
data[1] || data[2] || data[3]);
|
|
input_report_abs(input_dev, ABS_WHEEL, data[1]);
|
|
input_report_key(input_dev, BTN_0, data[2]);
|
|
for (i = 0; i < 8; i++)
|
|
input_report_key(input_dev,
|
|
BTN_1 + i, data[3] & (1 << i));
|
|
break;
|
|
|
|
case HANWANG_ART_MASTER_HD:
|
|
input_report_key(input_dev, BTN_TOOL_FINGER, data[1] ||
|
|
data[2] || data[3] || data[4] ||
|
|
data[5] || data[6]);
|
|
input_report_abs(input_dev, ABS_RX,
|
|
((data[1] & 0x1f) << 8) | data[2]);
|
|
input_report_abs(input_dev, ABS_RY,
|
|
((data[3] & 0x1f) << 8) | data[4]);
|
|
input_report_key(input_dev, BTN_0, data[5] & 0x01);
|
|
for (i = 0; i < 4; i++) {
|
|
input_report_key(input_dev,
|
|
BTN_1 + i, data[5] & (1 << i));
|
|
input_report_key(input_dev,
|
|
BTN_5 + i, data[6] & (1 << i));
|
|
}
|
|
break;
|
|
|
|
case HANWANG_ART_MASTER_II:
|
|
dev_dbg(&dev->dev, "error packet %02x\n", data[0]);
|
|
return;
|
|
}
|
|
|
|
input_report_abs(input_dev, ABS_MISC, hanwang->current_id);
|
|
input_event(input_dev, EV_MSC, MSC_SERIAL, 0xffffffff);
|
|
break;
|
|
|
|
default:
|
|
dev_dbg(&dev->dev, "error packet %02x\n", data[0]);
|
|
break;
|
|
}
|
|
|
|
input_sync(input_dev);
|
|
}
|
|
|
|
static void hanwang_irq(struct urb *urb)
|
|
{
|
|
struct hanwang *hanwang = urb->context;
|
|
struct usb_device *dev = hanwang->usbdev;
|
|
int retval;
|
|
|
|
switch (urb->status) {
|
|
case 0:
|
|
/* success */;
|
|
hanwang_parse_packet(hanwang);
|
|
break;
|
|
case -ECONNRESET:
|
|
case -ENOENT:
|
|
case -ESHUTDOWN:
|
|
/* this urb is terminated, clean up */
|
|
dev_err(&dev->dev, "%s - urb shutting down with status: %d",
|
|
__func__, urb->status);
|
|
return;
|
|
default:
|
|
dev_err(&dev->dev, "%s - nonzero urb status received: %d",
|
|
__func__, urb->status);
|
|
break;
|
|
}
|
|
|
|
retval = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (retval)
|
|
dev_err(&dev->dev, "%s - usb_submit_urb failed with result %d",
|
|
__func__, retval);
|
|
}
|
|
|
|
static int hanwang_open(struct input_dev *dev)
|
|
{
|
|
struct hanwang *hanwang = input_get_drvdata(dev);
|
|
|
|
hanwang->irq->dev = hanwang->usbdev;
|
|
if (usb_submit_urb(hanwang->irq, GFP_KERNEL))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hanwang_close(struct input_dev *dev)
|
|
{
|
|
struct hanwang *hanwang = input_get_drvdata(dev);
|
|
|
|
usb_kill_urb(hanwang->irq);
|
|
}
|
|
|
|
static bool get_features(struct usb_device *dev, struct hanwang *hanwang)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(features_array); i++) {
|
|
if (le16_to_cpu(dev->descriptor.idProduct) ==
|
|
features_array[i].pid) {
|
|
hanwang->features = &features_array[i];
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
static int hanwang_probe(struct usb_interface *intf, const struct usb_device_id *id)
|
|
{
|
|
struct usb_device *dev = interface_to_usbdev(intf);
|
|
struct usb_endpoint_descriptor *endpoint;
|
|
struct hanwang *hanwang;
|
|
struct input_dev *input_dev;
|
|
int error;
|
|
int i;
|
|
|
|
if (intf->cur_altsetting->desc.bNumEndpoints < 1)
|
|
return -ENODEV;
|
|
|
|
hanwang = kzalloc(sizeof(struct hanwang), GFP_KERNEL);
|
|
input_dev = input_allocate_device();
|
|
if (!hanwang || !input_dev) {
|
|
error = -ENOMEM;
|
|
goto fail1;
|
|
}
|
|
|
|
if (!get_features(dev, hanwang)) {
|
|
error = -ENXIO;
|
|
goto fail1;
|
|
}
|
|
|
|
hanwang->data = usb_alloc_coherent(dev, hanwang->features->pkg_len,
|
|
GFP_KERNEL, &hanwang->data_dma);
|
|
if (!hanwang->data) {
|
|
error = -ENOMEM;
|
|
goto fail1;
|
|
}
|
|
|
|
hanwang->irq = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!hanwang->irq) {
|
|
error = -ENOMEM;
|
|
goto fail2;
|
|
}
|
|
|
|
hanwang->usbdev = dev;
|
|
hanwang->dev = input_dev;
|
|
|
|
usb_make_path(dev, hanwang->phys, sizeof(hanwang->phys));
|
|
strlcat(hanwang->phys, "/input0", sizeof(hanwang->phys));
|
|
|
|
strlcpy(hanwang->name, hanwang->features->name, sizeof(hanwang->name));
|
|
input_dev->name = hanwang->name;
|
|
input_dev->phys = hanwang->phys;
|
|
usb_to_input_id(dev, &input_dev->id);
|
|
input_dev->dev.parent = &intf->dev;
|
|
|
|
input_set_drvdata(input_dev, hanwang);
|
|
|
|
input_dev->open = hanwang_open;
|
|
input_dev->close = hanwang_close;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(hw_eventtypes); ++i)
|
|
__set_bit(hw_eventtypes[i], input_dev->evbit);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(hw_absevents); ++i)
|
|
__set_bit(hw_absevents[i], input_dev->absbit);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(hw_btnevents); ++i)
|
|
__set_bit(hw_btnevents[i], input_dev->keybit);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(hw_mscevents); ++i)
|
|
__set_bit(hw_mscevents[i], input_dev->mscbit);
|
|
|
|
input_set_abs_params(input_dev, ABS_X,
|
|
0, hanwang->features->max_x, 4, 0);
|
|
input_set_abs_params(input_dev, ABS_Y,
|
|
0, hanwang->features->max_y, 4, 0);
|
|
input_set_abs_params(input_dev, ABS_TILT_X,
|
|
0, hanwang->features->max_tilt_x, 0, 0);
|
|
input_set_abs_params(input_dev, ABS_TILT_Y,
|
|
0, hanwang->features->max_tilt_y, 0, 0);
|
|
input_set_abs_params(input_dev, ABS_PRESSURE,
|
|
0, hanwang->features->max_pressure, 0, 0);
|
|
|
|
endpoint = &intf->cur_altsetting->endpoint[0].desc;
|
|
usb_fill_int_urb(hanwang->irq, dev,
|
|
usb_rcvintpipe(dev, endpoint->bEndpointAddress),
|
|
hanwang->data, hanwang->features->pkg_len,
|
|
hanwang_irq, hanwang, endpoint->bInterval);
|
|
hanwang->irq->transfer_dma = hanwang->data_dma;
|
|
hanwang->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
|
|
|
error = input_register_device(hanwang->dev);
|
|
if (error)
|
|
goto fail3;
|
|
|
|
usb_set_intfdata(intf, hanwang);
|
|
|
|
return 0;
|
|
|
|
fail3: usb_free_urb(hanwang->irq);
|
|
fail2: usb_free_coherent(dev, hanwang->features->pkg_len,
|
|
hanwang->data, hanwang->data_dma);
|
|
fail1: input_free_device(input_dev);
|
|
kfree(hanwang);
|
|
return error;
|
|
|
|
}
|
|
|
|
static void hanwang_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct hanwang *hanwang = usb_get_intfdata(intf);
|
|
|
|
input_unregister_device(hanwang->dev);
|
|
usb_free_urb(hanwang->irq);
|
|
usb_free_coherent(interface_to_usbdev(intf),
|
|
hanwang->features->pkg_len, hanwang->data,
|
|
hanwang->data_dma);
|
|
kfree(hanwang);
|
|
usb_set_intfdata(intf, NULL);
|
|
}
|
|
|
|
static const struct usb_device_id hanwang_ids[] = {
|
|
{ HANWANG_TABLET_DEVICE(USB_VENDOR_ID_HANWANG, HANWANG_TABLET_INT_CLASS,
|
|
HANWANG_TABLET_INT_SUB_CLASS, HANWANG_TABLET_INT_PROTOCOL) },
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(usb, hanwang_ids);
|
|
|
|
static struct usb_driver hanwang_driver = {
|
|
.name = "hanwang",
|
|
.probe = hanwang_probe,
|
|
.disconnect = hanwang_disconnect,
|
|
.id_table = hanwang_ids,
|
|
};
|
|
|
|
module_usb_driver(hanwang_driver);
|