116 lines
2.7 KiB
C++
116 lines
2.7 KiB
C++
/*
|
|
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) */
|