-
Notifications
You must be signed in to change notification settings - Fork 0
/
hanvon.c
263 lines (213 loc) · 7.17 KB
/
hanvon.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/usb/input.h>
#include <asm/unaligned.h>
#define DRIVER_VERSION "0.4"
#define DRIVER_AUTHOR "Ondra Havel <ondra.havel@gmail.com>"
#define DRIVER_DESC "USB Hanvon tablet driver"
#define DRIVER_LICENSE "GPL"
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE(DRIVER_LICENSE);
#define USB_VENDOR_ID_HANVON 0x0b57
#define USB_PRODUCT_ID_AM0806 0x8502
#define USB_PRODUCT_ID_AM1107 0x8505
#define USB_PRODUCT_ID_AM1209 0x8501
#define USB_PRODUCT_ID_RL0604 0x851f
#define USB_PRODUCT_ID_RK0504 0x851d
#define USB_AM_PACKET_LEN 10
static int lbuttons[]={BTN_0,BTN_1,BTN_2,BTN_3}; /* reported on all AMs */
static int rbuttons[]={BTN_4,BTN_5,BTN_6,BTN_7}; /* reported on AM1107+ */
#define AM_WHEEL_THRESHOLD 4
#define AM_MAX_ABS_X 0x27de
#define AM_MAX_ABS_Y 0x1cfe
#define AM_MAX_TILT_X 0x3f
#define AM_MAX_TILT_Y 0x7f
#define AM_MAX_PRESSURE 0x400
struct hanvon {
unsigned char *data;
dma_addr_t data_dma;
struct input_dev *dev;
struct usb_device *usbdev;
struct urb *irq;
int old_wheel_pos;
char phys[32];
};
static void report_buttons(struct hanvon *hanvon, int buttons[],unsigned char dta)
{
struct input_dev *dev = hanvon->dev;
if((dta & 0xf0) == 0xa0) {
input_report_key(dev, buttons[1], dta & 0x02);
input_report_key(dev, buttons[2], dta & 0x04);
input_report_key(dev, buttons[3], dta & 0x08);
} else {
if(dta <= 0x3f) { /* slider area active */
int diff = dta - hanvon->old_wheel_pos;
if(abs(diff) < AM_WHEEL_THRESHOLD)
input_report_rel(dev, REL_WHEEL, diff);
hanvon->old_wheel_pos = dta;
}
}
}
static void hanvon_irq(struct urb *urb)
{
struct hanvon *hanvon = urb->context;
unsigned char *data = hanvon->data;
struct input_dev *dev = hanvon->dev;
int retval;
switch (urb->status) {
case 0:
/* success */
break;
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
//dbg("%s - urb shutting down with status: %d", __func__, urb->status);
return;
default:
//dbg("%s - nonzero urb status received: %d", __func__, urb->status);
goto exit;
}
switch(data[0]) {
case 0x01: /* button press */
if(data[1]==0x55) /* left side */
report_buttons(hanvon,lbuttons,data[2]);
if(data[3]==0xaa) /* right side (am1107, am1209) */
report_buttons(hanvon,rbuttons,data[4]);
break;
case 0x02: /* position change */
if((data[1] & 0xf0) != 0) {
input_report_abs(dev, ABS_X, get_unaligned_be16(&data[2]));
input_report_abs(dev, ABS_Y, get_unaligned_be16(&data[4]));
input_report_abs(dev, ABS_TILT_X, data[7] & 0x3f);
input_report_abs(dev, ABS_TILT_Y, data[8]);
input_report_abs(dev, ABS_PRESSURE, get_unaligned_be16(&data[6])>>6);
}
input_report_key(dev, BTN_LEFT, data[1] & 0x1);
input_report_key(dev, BTN_RIGHT, data[1] & 0x2); /* stylus button pressed (right click) */
input_report_key(dev, lbuttons[0], data[1] & 0x20);
break;
}
input_sync(dev);
exit:
retval = usb_submit_urb (urb, GFP_ATOMIC);
// if (retval)
//err("%s - usb_submit_urb failed with result %d", __func__, retval);
}
static struct usb_device_id hanvon_ids[] = {
{ USB_DEVICE(USB_VENDOR_ID_HANVON, USB_PRODUCT_ID_AM1209) },
{ USB_DEVICE(USB_VENDOR_ID_HANVON, USB_PRODUCT_ID_AM1107) },
{ USB_DEVICE(USB_VENDOR_ID_HANVON, USB_PRODUCT_ID_AM0806) },
{ USB_DEVICE(USB_VENDOR_ID_HANVON, USB_PRODUCT_ID_RL0604) },
{ USB_DEVICE(USB_VENDOR_ID_HANVON, USB_PRODUCT_ID_RK0504) },
{ }
};
MODULE_DEVICE_TABLE(usb, hanvon_ids);
static int hanvon_open(struct input_dev *dev)
{
struct hanvon *hanvon = input_get_drvdata(dev);
hanvon->old_wheel_pos = -AM_WHEEL_THRESHOLD-1;
hanvon->irq->dev = hanvon->usbdev;
if (usb_submit_urb(hanvon->irq, GFP_KERNEL))
return -EIO;
return 0;
}
static void hanvon_close(struct input_dev *dev)
{
struct hanvon *hanvon = input_get_drvdata(dev);
usb_kill_urb(hanvon->irq);
}
static int hanvon_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 hanvon *hanvon;
struct input_dev *input_dev;
int error = -ENOMEM, i;
hanvon = kzalloc(sizeof(struct hanvon), GFP_KERNEL);
input_dev = input_allocate_device();
if (!hanvon || !input_dev)
goto fail1;
hanvon->data = (unsigned char *)usb_alloc_coherent(dev, USB_AM_PACKET_LEN, GFP_KERNEL, &hanvon->data_dma);
if (!hanvon->data)
goto fail1;
hanvon->irq = usb_alloc_urb(0, GFP_KERNEL);
if (!hanvon->irq)
goto fail2;
hanvon->usbdev = dev;
hanvon->dev = input_dev;
usb_make_path(dev, hanvon->phys, sizeof(hanvon->phys));
strlcat(hanvon->phys, "/input0", sizeof(hanvon->phys));
input_dev->name = "Hanvon Artmaster I tablet";
input_dev->phys = hanvon->phys;
usb_to_input_id(dev, &input_dev->id);
input_dev->dev.parent = &intf->dev;
input_set_drvdata(input_dev, hanvon);
input_dev->open = hanvon_open;
input_dev->close = hanvon_close;
input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) | BIT_MASK(EV_REL);
input_dev->keybit[BIT_WORD(BTN_DIGI)] |= BIT_MASK(BTN_TOOL_PEN) | BIT_MASK(BTN_TOUCH);
input_dev->keybit[BIT_WORD(BTN_LEFT)] |= BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
for(i=0;i<sizeof(lbuttons)/sizeof(lbuttons[0]);i++)
__set_bit(lbuttons[i], input_dev->keybit);
for(i=0;i<sizeof(rbuttons)/sizeof(rbuttons[0]);i++)
__set_bit(rbuttons[i], input_dev->keybit);
input_set_abs_params(input_dev, ABS_X, 0, AM_MAX_ABS_X, 4, 0);
input_set_abs_params(input_dev, ABS_Y, 0, AM_MAX_ABS_Y, 4, 0);
input_set_abs_params(input_dev, ABS_TILT_X, 0, AM_MAX_TILT_X, 0, 0);
input_set_abs_params(input_dev, ABS_TILT_Y, 0, AM_MAX_TILT_Y, 0, 0);
input_set_abs_params(input_dev, ABS_PRESSURE, 0, AM_MAX_PRESSURE, 0, 0);
input_set_capability(input_dev, EV_REL, REL_WHEEL);
endpoint = &intf->cur_altsetting->endpoint[0].desc;
usb_fill_int_urb(hanvon->irq, dev,
usb_rcvintpipe(dev, endpoint->bEndpointAddress),
hanvon->data, USB_AM_PACKET_LEN,
hanvon_irq, hanvon, endpoint->bInterval);
hanvon->irq->transfer_dma = hanvon->data_dma;
hanvon->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
error = input_register_device(hanvon->dev);
if (error)
goto fail3;
usb_set_intfdata(intf, hanvon);
return 0;
fail3: usb_free_urb(hanvon->irq);
fail2: usb_free_coherent(dev, USB_AM_PACKET_LEN, hanvon->data, hanvon->data_dma);
fail1: input_free_device(input_dev);
kfree(hanvon);
return error;
}
static void hanvon_disconnect(struct usb_interface *intf)
{
struct hanvon *hanvon = usb_get_intfdata(intf);
usb_set_intfdata(intf, NULL);
if (hanvon) {
usb_kill_urb(hanvon->irq);
input_unregister_device(hanvon->dev);
usb_free_urb(hanvon->irq);
usb_free_coherent(interface_to_usbdev(intf), USB_AM_PACKET_LEN, hanvon->data, hanvon->data_dma);
kfree(hanvon);
}
}
static struct usb_driver hanvon_driver = {
.name = "hanvon",
.probe = hanvon_probe,
.disconnect = hanvon_disconnect,
.id_table = hanvon_ids,
};
static int __init hanvon_init(void)
{
int rv;
if((rv = usb_register(&hanvon_driver)) != 0)
return rv;
printk(DRIVER_DESC " " DRIVER_VERSION "\n");
return 0;
}
static void __exit hanvon_exit(void)
{
usb_deregister(&hanvon_driver);
}
module_init(hanvon_init);
module_exit(hanvon_exit);