mirror of
https://github.com/arduino/Arduino.git
synced 2024-12-04 15:24:12 +01:00
145 lines
3.8 KiB
C++
145 lines
3.8 KiB
C++
/*
|
|
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 "HID.h"
|
|
|
|
#if defined(USBCON)
|
|
|
|
HID_& HID()
|
|
{
|
|
static HID_ obj;
|
|
return obj;
|
|
}
|
|
|
|
int HID_::getInterface(uint8_t* interfaceCount)
|
|
{
|
|
*interfaceCount += 1; // uses 1
|
|
HIDDescriptor hidInterface = {
|
|
D_INTERFACE(pluggedInterface, 1, USB_DEVICE_CLASS_HUMAN_INTERFACE, HID_SUBCLASS_NONE, HID_PROTOCOL_NONE),
|
|
D_HIDREPORT(descriptorSize),
|
|
D_ENDPOINT(USB_ENDPOINT_IN(pluggedEndpoint), USB_ENDPOINT_TYPE_INTERRUPT, USB_EP_SIZE, 0x01)
|
|
};
|
|
return USB_SendControl(0, &hidInterface, sizeof(hidInterface));
|
|
}
|
|
|
|
int HID_::getDescriptor(USBSetup& setup)
|
|
{
|
|
// Check if this is a HID Class Descriptor request
|
|
if (setup.bmRequestType != REQUEST_DEVICETOHOST_STANDARD_INTERFACE) { return 0; }
|
|
if (setup.wValueH != HID_REPORT_DESCRIPTOR_TYPE) { return 0; }
|
|
|
|
// In a HID Class Descriptor wIndex cointains the interface number
|
|
if (setup.wIndex != pluggedInterface) { return 0; }
|
|
|
|
int total = 0;
|
|
HIDDescriptorListNode* node;
|
|
for (node = rootNode; node; node = node->next) {
|
|
int res = USB_SendControl(TRANSFER_PGM, node->data, node->length);
|
|
if (res == -1)
|
|
return -1;
|
|
total += res;
|
|
}
|
|
return total;
|
|
}
|
|
|
|
void HID_::AppendDescriptor(HIDDescriptorListNode *node)
|
|
{
|
|
if (!rootNode) {
|
|
rootNode = node;
|
|
} else {
|
|
HIDDescriptorListNode *current = rootNode;
|
|
while (current->next) {
|
|
current = current->next;
|
|
}
|
|
current->next = node;
|
|
}
|
|
descriptorSize += node->length;
|
|
}
|
|
|
|
void HID_::SendReport(uint8_t id, const void* data, int len)
|
|
{
|
|
USB_Send(pluggedEndpoint, &id, 1);
|
|
USB_Send(pluggedEndpoint | TRANSFER_RELEASE, data, len);
|
|
}
|
|
|
|
bool HID_::setup(USBSetup& setup)
|
|
{
|
|
if (pluggedInterface != setup.wIndex) {
|
|
return false;
|
|
}
|
|
|
|
uint8_t request = setup.bRequest;
|
|
uint8_t requestType = setup.bmRequestType;
|
|
|
|
if (requestType == REQUEST_DEVICETOHOST_CLASS_INTERFACE)
|
|
{
|
|
if (request == HID_GET_REPORT) {
|
|
// TODO: HID_GetReport();
|
|
return true;
|
|
}
|
|
if (request == HID_GET_PROTOCOL) {
|
|
// TODO: Send8(protocol);
|
|
return true;
|
|
}
|
|
if (request == HID_GET_IDLE) {
|
|
// TODO: Send8(idle);
|
|
}
|
|
}
|
|
|
|
if (requestType == REQUEST_HOSTTODEVICE_CLASS_INTERFACE)
|
|
{
|
|
if (request == HID_SET_PROTOCOL) {
|
|
// The USB Host tells us if we are in boot or report mode.
|
|
// This only works with a real boot compatible device.
|
|
protocol = setup.wValueL;
|
|
return true;
|
|
}
|
|
if (request == HID_SET_IDLE) {
|
|
idle = setup.wValueL;
|
|
return true;
|
|
}
|
|
if (request == HID_SET_REPORT)
|
|
{
|
|
//uint8_t reportID = setup.wValueL;
|
|
//uint16_t length = setup.wLength;
|
|
//uint8_t data[length];
|
|
// Make sure to not read more data than USB_EP_SIZE.
|
|
// You can read multiple times through a loop.
|
|
// The first byte (may!) contain the reportID on a multreport.
|
|
//USB_RecvControl(data, length);
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
HID_::HID_(void) : PUSBListNode(1, 1, epType),
|
|
rootNode(NULL), descriptorSize(0),
|
|
protocol(1), idle(1)
|
|
{
|
|
epType[0] = EP_TYPE_INTERRUPT_IN;
|
|
PluggableUSB().plug(this);
|
|
}
|
|
|
|
int HID_::begin(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* if defined(USBCON) */
|