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
|
#include "project.h"
static const uint8_t tablet_report_descriptor[] = {
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x02, // USAGE (Mouse)
0xa1, 0x01, // COLLECTION (Application)
0x09, 0x01, // USAGE (Pointer)
0xa1, 0x00, // COLLECTION (Physical)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x30, // USAGE (X)
0x09, 0x31, // USAGE (Y)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xff, 0x7f, // LOGICAL_MAXIMUM (32767)
0x75, 0x10, // REPORT_SIZE (16)
0x95, 0x02, // REPORT_COUNT (2)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x38, // USAGE (Wheel)
0x15, 0x81, // LOGICAL_MINIMUM (-127)
0x25, 0x7f, // LOGICAL_MAXIMUM (127)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x01, // REPORT_COUNT (1)
0x81, 0x06, // INPUT (Data,Var,Rel)
0x05, 0x09, // USAGE_PAGE (Button)
0x19, 0x01, // USAGE_MINIMUM (Button 1)
0x29, 0x03, // USAGE_MAXIMUM (Button 3)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x95, 0x03, // REPORT_COUNT (3)
0x75, 0x01, // REPORT_SIZE (1)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x95, 0x01, // REPORT_COUNT (1)
0x75, 0x05, // REPORT_SIZE (5)
0x81, 0x01, // INPUT (Cnst,Ary,Abs)
0xc0, // END_COLLECTION
0x09, 0x3c, // USAGE (Button 60)
0x06, 0x00, 0xff, // USAGE_PAGE (Vendor Defined Page 1)
0x09, 0x01, // USAGE (Vendor Usage 1)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x75, 0x01, // REPORT_SIZE (1)
0x95, 0x02, // REPORT_COUNT (2)
0xb1, 0x22, // FEATURE (Data,Var,Abs,NPrf)
0x75, 0x06, // REPORT_SIZE (6)
0x95, 0x01, // REPORT_COUNT (1)
0xb1, 0x01, // FEATURE (Cnst,Ary,Abs)
0xc0 // END_COLLECTION
};
static const struct
{
struct usb_hid_descriptor hid_descriptor;
struct
{
uint8_t bReportDescriptorType;
uint16_t wDescriptorLength;
} __attribute__ ((packed)) hid_report;
} __attribute__ ((packed)) tablet_function =
{
.hid_descriptor =
{
.bLength = sizeof (tablet_function),.bDescriptorType =
USB_DT_HID,.bcdHID = 0x0100,.bCountryCode = 0,.bNumDescriptors = 1,}
,.hid_report =
{
.bReportDescriptorType = USB_DT_REPORT,.wDescriptorLength =
sizeof (tablet_report_descriptor),}
,};
const struct usb_endpoint_descriptor tablet_endpoint = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = 0x83,
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
.wMaxPacketSize = 6,
.bInterval = 0x1 //0x20,
};
const struct usb_interface_descriptor tablet_iface = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
.bInterfaceNumber = 2,
.bAlternateSetting = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_HID,
.bInterfaceSubClass = 1, /* boot */
.bInterfaceProtocol = 2, /* tablet */
.iInterface = 0,
.endpoint = &tablet_endpoint,
.extra = &tablet_function,
.extralen = sizeof (tablet_function),
};
void
tablet_get_descriptor (uint8_t ** buf, uint16_t * len)
{
/* Handle the HID report descriptor. */
*buf = (uint8_t *) tablet_report_descriptor;
*len = sizeof (tablet_report_descriptor);
}
void
tablet_test (void)
{
static int c = 0;
uint8_t buf[6] = { 0, 0, 0, 0, 0 };
buf[0] = c & 0xff;
buf[1] = (c & 0x7fff) >> 8;
buf[2] = (32767 - (c & 0x7fff)) & 0xff;
buf[3] = (32767 - (c & 0x7fff)) >> 8;
buf[4] = (c & 8) ? -1 : 1;
buf[5] = c;
c++;
usbd_ep_write_packet (usbd_dev, 0x83, buf, 6);
}
|
