source: arduino-1-6-7/trunk/fuentes/arduino-ide-amd64/hardware/arduino/avr/cores/arduino/PluggableUSB.cpp @ 4837

Last change on this file since 4837 was 4837, checked in by daduve, 3 years ago

Adding new version

File size: 2.7 KB
Line 
1/*
2  PluggableUSB.cpp
3  Copyright (c) 2015 Arduino LLC
4
5  This library is free software; you can redistribute it and/or
6  modify it under the terms of the GNU Lesser General Public
7  License as published by the Free Software Foundation; either
8  version 2.1 of the License, or (at your option) any later version.
9
10  This library is distributed in the hope that it will be useful,
11  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  Lesser General Public License for more details.
14
15  You should have received a copy of the GNU Lesser General Public
16  License along with this library; if not, write to the Free Software
17  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
18*/
19
20#include "USBAPI.h"
21#include "PluggableUSB.h"
22
23#if defined(USBCON)     
24#ifdef PLUGGABLE_USB_ENABLED
25
26extern uint8_t _initEndpoints[];
27
28int PluggableUSB_::getInterface(uint8_t* interfaceCount)
29{
30        int sent = 0;
31        PluggableUSBModule* node;
32        for (node = rootNode; node; node = node->next) {
33                int res = node->getInterface(interfaceCount);
34                if (res < 0)
35                        return -1;
36                sent += res;
37        }
38        return sent;
39}
40
41int PluggableUSB_::getDescriptor(USBSetup& setup)
42{
43        PluggableUSBModule* node;
44        for (node = rootNode; node; node = node->next) {
45                int ret = node->getDescriptor(setup);
46                // ret!=0 -> request has been processed
47                if (ret)
48                        return ret;
49        }
50        return 0;
51}
52
53void PluggableUSB_::getShortName(char *iSerialNum)
54{
55        PluggableUSBModule* node;
56        for (node = rootNode; node; node = node->next) {
57                iSerialNum += node->getShortName(iSerialNum);
58        }
59        *iSerialNum = 0;
60}
61
62bool PluggableUSB_::setup(USBSetup& setup)
63{
64        PluggableUSBModule* node;
65        for (node = rootNode; node; node = node->next) {
66                if (node->setup(setup)) {
67                        return true;
68                }
69        }
70        return false;
71}
72
73bool PluggableUSB_::plug(PluggableUSBModule *node)
74{
75        if ((lastEp + node->numEndpoints) > USB_ENDPOINTS) {
76                return false;
77        }
78
79        if (!rootNode) {
80                rootNode = node;
81        } else {
82                PluggableUSBModule *current = rootNode;
83                while (current->next) {
84                        current = current->next;
85                }
86                current->next = node;
87        }
88
89        node->pluggedInterface = lastIf;
90        node->pluggedEndpoint = lastEp;
91        lastIf += node->numInterfaces;
92        for (uint8_t i = 0; i < node->numEndpoints; i++) {
93                _initEndpoints[lastEp] = node->endpointType[i];
94                lastEp++;
95        }
96        return true;
97        // restart USB layer???
98}
99
100PluggableUSB_& PluggableUSB()
101{
102        static PluggableUSB_ obj;
103        return obj;
104}
105
106PluggableUSB_::PluggableUSB_() : lastIf(CDC_ACM_INTERFACE + CDC_INTERFACE_COUNT),
107                                 lastEp(CDC_FIRST_ENDPOINT + CDC_ENPOINT_COUNT),
108                                 rootNode(NULL)
109{
110        // Empty
111}
112
113#endif
114
115#endif /* if defined(USBCON) */
Note: See TracBrowser for help on using the repository browser.