blob: c489d9f1af2c9ceb148977f1c1a0c22e87395cda (
plain)
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
|
/*
PluggableUSB.cpp
Copyright (c) 2015 Arduino LLC
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "USBAPI.h"
#include "PluggableUSB.h"
#if defined(USBCON)
#ifdef PLUGGABLE_USB_ENABLED
extern uint8_t _initEndpoints[];
int PluggableUSB_::getInterface(uint8_t* interfaceCount)
{
int sent = 0;
PluggableUSBModule* node;
for (node = rootNode; node; node = node->next) {
int res = node->getInterface(interfaceCount);
if (res < 0)
return -1;
sent += res;
}
return sent;
}
int PluggableUSB_::getDescriptor(USBSetup& setup)
{
PluggableUSBModule* node;
for (node = rootNode; node; node = node->next) {
int ret = node->getDescriptor(setup);
// ret!=0 -> request has been processed
if (ret)
return ret;
}
return 0;
}
void PluggableUSB_::getShortName(char *iSerialNum)
{
PluggableUSBModule* node;
for (node = rootNode; node; node = node->next) {
iSerialNum += node->getShortName(iSerialNum);
}
*iSerialNum = 0;
}
bool PluggableUSB_::setup(USBSetup& setup)
{
PluggableUSBModule* node;
for (node = rootNode; node; node = node->next) {
if (node->setup(setup)) {
return true;
}
}
return false;
}
bool PluggableUSB_::plug(PluggableUSBModule *node)
{
if ((lastEp + node->numEndpoints) > USB_ENDPOINTS) {
return false;
}
if (!rootNode) {
rootNode = node;
} else {
PluggableUSBModule *current = rootNode;
while (current->next) {
current = current->next;
}
current->next = node;
}
node->pluggedInterface = lastIf;
node->pluggedEndpoint = lastEp;
lastIf += node->numInterfaces;
for (uint8_t i = 0; i < node->numEndpoints; i++) {
_initEndpoints[lastEp] = node->endpointType[i];
lastEp++;
}
return true;
// restart USB layer???
}
PluggableUSB_& PluggableUSB()
{
static PluggableUSB_ obj;
return obj;
}
PluggableUSB_::PluggableUSB_() : lastIf(CDC_ACM_INTERFACE + CDC_INTERFACE_COUNT),
lastEp(CDC_FIRST_ENDPOINT + CDC_ENPOINT_COUNT),
rootNode(NULL)
{
// Empty
}
#endif
#endif /* if defined(USBCON) */
|
