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/* Copyright (c) 2015, Arduino LLC
**
** Original code (pre-library): Copyright (c) 2011, Peter Barrett
**
** Permission to use, copy, modify, and/or distribute this software for
** any purpose with or without fee is hereby granted, provided that the
** above copyright notice and this permission notice appear in all copies.
**
** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
** WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
** WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR
** BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
** OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
** WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
** ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
** SOFTWARE.
*/
#include "PluggableUSB.h"
#include "HID.h"
#if defined(USBCON)
HID_ HID;
int HID_::getInterface(uint8_t* interfaceNum)
{
interfaceNum[0] += 1; // uses 1
hidInterface =
{
D_INTERFACE(interface(), 1, 3, 0, 0),
D_HIDREPORT(sizeof_hidReportDescriptor),
D_ENDPOINT(USB_ENDPOINT_IN(endpoint()), USB_ENDPOINT_TYPE_INTERRUPT, USB_EP_SIZE, 0x01)
};
return USB_SendControl(0, &hidInterface, sizeof(hidInterface));
}
int HID_::getDescriptor(int8_t t)
{
if (HID_REPORT_DESCRIPTOR_TYPE == t) {
HIDDescriptorListNode* current = rootNode;
int total = 0;
while(current != NULL) {
total += USB_SendControl(TRANSFER_PGM,current->data,current->length);
current = current->next;
}
return total;
} else {
return 0;
}
}
void HID_::AppendDescriptor(HIDDescriptorListNode *node)
{
if (modules_count == 0) {
rootNode = node;
} else {
HIDDescriptorListNode *current = rootNode;
while(current->next != NULL) {
current = current->next;
}
current->next = node;
}
modules_count++;
sizeof_hidReportDescriptor += (uint16_t)node->length;
}
void HID_::SendReport(uint8_t id, const void* data, int len)
{
USB_Send(endpoint(), &id, 1);
USB_Send(endpoint() | TRANSFER_RELEASE,data,len);
}
bool HID_::setup(USBSetup& setup, uint8_t i)
{
if (interface() != i) {
return false;
} else {
uint8_t r = setup.bRequest;
uint8_t requestType = setup.bmRequestType;
if (REQUEST_DEVICETOHOST_CLASS_INTERFACE == requestType)
{
if (HID_GET_REPORT == r)
{
//HID_GetReport();
return true;
}
if (HID_GET_PROTOCOL == r)
{
//Send8(protocol); // TODO
return true;
}
}
if (REQUEST_HOSTTODEVICE_CLASS_INTERFACE == requestType)
{
if (HID_SET_PROTOCOL == r)
{
protocol = setup.wValueL;
return true;
}
if (HID_SET_IDLE == r)
{
idle = setup.wValueL;
return true;
}
}
return false;
}
}
// XXX: I've found no way to pass literal value directly in
// the PUSBListNode constructor
static uint8_t epTypeDef[] = { EP_TYPE_INTERRUPT_IN };
HID_::HID_(void) : PUSBListNode(1, 1, epTypeDef),
rootNode(NULL), sizeof_hidReportDescriptor(0),
modules_count(0), protocol(1), idle(1)
{
// XXX: Shall this be done in PUSBListNode(...) constructor?
PluggableUSB.plug(this);
}
int HID_::begin(void)
{
return 0;
}
#endif /* if defined(USBCON) */
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