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/*
HID.h
Copyright (c) 2015, Arduino LLC
Original code (pre-library): Copyright (c) 2011, Peter Barrett
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
*/
#ifndef HID_h
#define HID_h
#include <stdint.h>
#include <Arduino.h>
#include "PluggableUSB.h"
#if defined(USBCON)
#define _USING_HID
// HID 'Driver'
// ------------
#define HID_GET_REPORT 0x01
#define HID_GET_IDLE 0x02
#define HID_GET_PROTOCOL 0x03
#define HID_SET_REPORT 0x09
#define HID_SET_IDLE 0x0A
#define HID_SET_PROTOCOL 0x0B
#define HID_HID_DESCRIPTOR_TYPE 0x21
#define HID_REPORT_DESCRIPTOR_TYPE 0x22
#define HID_PHYSICAL_DESCRIPTOR_TYPE 0x23
typedef struct
{
uint8_t len; // 9
uint8_t dtype; // 0x21
uint8_t addr;
uint8_t versionL; // 0x101
uint8_t versionH; // 0x101
uint8_t country;
uint8_t desctype; // 0x22 report
uint8_t descLenL;
uint8_t descLenH;
} HIDDescDescriptor;
typedef struct
{
InterfaceDescriptor hid;
HIDDescDescriptor desc;
EndpointDescriptor in;
} HIDDescriptor;
class HIDDescriptorListNode {
public:
HIDDescriptorListNode *next = NULL;
HIDDescriptorListNode(const void *d, const uint16_t l) : data(d), length(l) { }
const void* data;
uint16_t length;
};
class HID_ : public PUSBListNode
{
public:
HID_(void);
int begin(void);
void SendReport(uint8_t id, const void* data, int len);
void AppendDescriptor(HIDDescriptorListNode* node);
protected:
// Implementation of the PUSBListNode
int getInterface(uint8_t* interfaceNum);
int getDescriptor(int8_t type);
bool setup(USBSetup& setup, uint8_t interfaceNum);
private:
HIDDescriptor hidInterface;
uint8_t epType[1];
HIDDescriptorListNode* rootNode;
uint16_t sizeof_hidReportDescriptor;
uint8_t protocol;
uint8_t idle;
};
#define D_HIDREPORT(length) { 9, 0x21, 0x01, 0x01, 0, 1, 0x22, lowByte(length), highByte(length) }
#define WEAK __attribute__ ((weak))
#endif
#endif
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