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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.
*/
#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
// HID subclass HID1.11 Page 8 4.2 Subclass
#define HID_SUBCLASS_NONE 0
#define HID_SUBCLASS_BOOT_INTERFACE 1
// HID Keyboard/Mouse bios compatible protocols HID1.11 Page 9 4.3 Protocols
#define HID_PROTOCOL_NONE 0
#define HID_PROTOCOL_KEYBOARD 1
#define HID_PROTOCOL_MOUSE 2
// Normal or bios protocol (Keyboard/Mouse) HID1.11 Page 54 7.2.5 Get_Protocol Request
// "protocol" variable is used for this purpose.
#define HID_BOOT_PROTOCOL 0
#define HID_REPORT_PROTOCOL 1
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 HIDSubDescriptor {
public:
HIDSubDescriptor *next = NULL;
HIDSubDescriptor(const void *d, const uint16_t l) : data(d), length(l) { }
const void* data;
const uint16_t length;
};
class HID_ : public PluggableUSBModule
{
public:
HID_(void);
int begin(void);
void SendReport(uint8_t id, const void* data, int len);
void AppendDescriptor(HIDSubDescriptor* node);
protected:
// Implementation of the PluggableUSBModule
int getInterface(uint8_t* interfaceCount);
int getDescriptor(USBSetup& setup);
bool setup(USBSetup& setup);
private:
uint8_t epType[1];
HIDSubDescriptor* rootNode;
uint16_t descriptorSize;
uint8_t protocol;
uint8_t idle;
};
// Replacement for global singleton.
// This function prevents static-initialization-order-fiasco
// https://isocpp.org/wiki/faq/ctors#static-init-order-on-first-use
HID_& HID();
#define D_HIDREPORT(length) { 9, 0x21, 0x01, 0x01, 0, 1, 0x22, lowByte(length), highByte(length) }
#endif // USBCON
#endif // HID_h
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