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k3ng_cw_keyer/libraries/USB_Host_Shield/hid.h

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/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
This software may be distributed and modified under the terms of the GNU
General Public License version 2 (GPL2) as published by the Free Software
Foundation and appearing in the file GPL2.TXT included in the packaging of
this file. Please note that GPL2 Section 2[b] requires that all works based
on this software must also be made publicly available under the terms of
the GPL2 ("Copyleft").
Contact information
-------------------
Circuits At Home, LTD
Web : http://www.circuitsathome.com
e-mail : support@circuitsathome.com
*/
#if !defined(__HID_H__)
#define __HID_H__
#include "Usb.h"
#include "hidusagestr.h"
#define MAX_REPORT_PARSERS 2
#define HID_MAX_HID_CLASS_DESCRIPTORS 5
#define DATA_SIZE_MASK 0x03
#define TYPE_MASK 0x0C
#define TAG_MASK 0xF0
#define DATA_SIZE_0 0x00
#define DATA_SIZE_1 0x01
#define DATA_SIZE_2 0x02
#define DATA_SIZE_4 0x03
#define TYPE_MAIN 0x00
#define TYPE_GLOBAL 0x04
#define TYPE_LOCAL 0x08
#define TAG_MAIN_INPUT 0x80
#define TAG_MAIN_OUTPUT 0x90
#define TAG_MAIN_COLLECTION 0xA0
#define TAG_MAIN_FEATURE 0xB0
#define TAG_MAIN_ENDCOLLECTION 0xC0
#define TAG_GLOBAL_USAGEPAGE 0x00
#define TAG_GLOBAL_LOGICALMIN 0x10
#define TAG_GLOBAL_LOGICALMAX 0x20
#define TAG_GLOBAL_PHYSMIN 0x30
#define TAG_GLOBAL_PHYSMAX 0x40
#define TAG_GLOBAL_UNITEXP 0x50
#define TAG_GLOBAL_UNIT 0x60
#define TAG_GLOBAL_REPORTSIZE 0x70
#define TAG_GLOBAL_REPORTID 0x80
#define TAG_GLOBAL_REPORTCOUNT 0x90
#define TAG_GLOBAL_PUSH 0xA0
#define TAG_GLOBAL_POP 0xB0
#define TAG_LOCAL_USAGE 0x00
#define TAG_LOCAL_USAGEMIN 0x10
#define TAG_LOCAL_USAGEMAX 0x20
/* HID requests */
#define bmREQ_HID_OUT USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_INTERFACE
#define bmREQ_HID_IN USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_INTERFACE
#define bmREQ_HID_REPORT USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_STANDARD|USB_SETUP_RECIPIENT_INTERFACE
/* HID constants. Not part of chapter 9 */
/* Class-Specific Requests */
#define HID_REQUEST_GET_REPORT 0x01
#define HID_REQUEST_GET_IDLE 0x02
#define HID_REQUEST_GET_PROTOCOL 0x03
#define HID_REQUEST_SET_REPORT 0x09
#define HID_REQUEST_SET_IDLE 0x0A
#define HID_REQUEST_SET_PROTOCOL 0x0B
/* Class Descriptor Types */
#define HID_DESCRIPTOR_HID 0x21
#define HID_DESCRIPTOR_REPORT 0x22
#define HID_DESRIPTOR_PHY 0x23
/* Protocol Selection */
#define HID_BOOT_PROTOCOL 0x00
#define HID_RPT_PROTOCOL 0x01
/* HID Interface Class Code */
#define HID_INTF 0x03
/* HID Interface Class SubClass Codes */
#define HID_BOOT_INTF_SUBCLASS 0x01
/* HID Interface Class Protocol Codes */
#define HID_PROTOCOL_NONE 0x00
#define HID_PROTOCOL_KEYBOARD 0x01
#define HID_PROTOCOL_MOUSE 0x02
#define HID_ITEM_TYPE_MAIN 0
#define HID_ITEM_TYPE_GLOBAL 1
#define HID_ITEM_TYPE_LOCAL 2
#define HID_ITEM_TYPE_RESERVED 3
#define HID_LONG_ITEM_PREFIX 0xfe // Long item prefix value
#define bmHID_MAIN_ITEM_TAG 0xfc // Main item tag mask
#define bmHID_MAIN_ITEM_INPUT 0x80 // Main item Input tag value
#define bmHID_MAIN_ITEM_OUTPUT 0x90 // Main item Output tag value
#define bmHID_MAIN_ITEM_FEATURE 0xb0 // Main item Feature tag value
#define bmHID_MAIN_ITEM_COLLECTION 0xa0 // Main item Collection tag value
#define bmHID_MAIN_ITEM_END_COLLECTION 0xce // Main item End Collection tag value
#define HID_MAIN_ITEM_COLLECTION_PHYSICAL 0
#define HID_MAIN_ITEM_COLLECTION_APPLICATION 1
#define HID_MAIN_ITEM_COLLECTION_LOGICAL 2
#define HID_MAIN_ITEM_COLLECTION_REPORT 3
#define HID_MAIN_ITEM_COLLECTION_NAMED_ARRAY 4
#define HID_MAIN_ITEM_COLLECTION_USAGE_SWITCH 5
#define HID_MAIN_ITEM_COLLECTION_USAGE_MODIFIER 6
struct HidItemPrefix {
uint8_t bSize : 2;
uint8_t bType : 2;
uint8_t bTag : 4;
};
struct MainItemIOFeature {
uint8_t bmIsConstantOrData : 1;
uint8_t bmIsArrayOrVariable : 1;
uint8_t bmIsRelativeOrAbsolute : 1;
uint8_t bmIsWrapOrNoWrap : 1;
uint8_t bmIsNonLonearOrLinear : 1;
uint8_t bmIsNoPreferedOrPrefered : 1;
uint8_t bmIsNullOrNoNull : 1;
uint8_t bmIsVolatileOrNonVolatile : 1;
};
class HID;
class HIDReportParser {
public:
virtual void Parse(HID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf) = 0;
};
class HID : public USBDeviceConfig, public UsbConfigXtracter {
protected:
USB *pUsb; // USB class instance pointer
uint8_t bAddress; // address
protected:
static const uint8_t epInterruptInIndex = 1; // InterruptIN endpoint index
static const uint8_t epInterruptOutIndex = 2; // InterruptOUT endpoint index
static const uint8_t maxHidInterfaces = 3;
static const uint8_t maxEpPerInterface = 2;
static const uint8_t totalEndpoints = (maxHidInterfaces * maxEpPerInterface + 1);
void PrintEndpointDescriptor(const USB_ENDPOINT_DESCRIPTOR* ep_ptr);
void PrintHidDescriptor(const USB_HID_DESCRIPTOR *pDesc);
virtual HIDReportParser* GetReportParser(uint8_t id) {};
public:
HID(USB *pusb) : pUsb(pusb) {
};
const USB* GetUsb() {
return pUsb;
};
virtual bool SetReportParser(uint8_t id, HIDReportParser *prs) {};
uint8_t SetProtocol(uint8_t iface, uint8_t protocol);
uint8_t GetProtocol(uint8_t iface, uint8_t* dataptr);
uint8_t GetIdle(uint8_t iface, uint8_t reportID, uint8_t* dataptr);
uint8_t SetIdle(uint8_t iface, uint8_t reportID, uint8_t duration);
uint8_t GetReportDescr(uint16_t wIndex, USBReadParser *parser = NULL);
uint8_t GetHidDescr(uint8_t ep, uint16_t nbytes, uint8_t* dataptr);
uint8_t GetReport(uint8_t ep, uint8_t iface, uint8_t report_type, uint8_t report_id, uint16_t nbytes, uint8_t* dataptr);
uint8_t SetReport(uint8_t ep, uint8_t iface, uint8_t report_type, uint8_t report_id, uint16_t nbytes, uint8_t* dataptr);
};
#endif // __HID_H__
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