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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(__HIDUNIVERSAL_H__)
#define __HIDUNIVERSAL_H__
#include "hid.h"
//#include "hidescriptorparser.h"
class HIDUniversal : public HID {
struct ReportParser {
uint8_t rptId;
HIDReportParser *rptParser;
} rptParsers[MAX_REPORT_PARSERS];
// HID class specific descriptor type and length info obtained from HID descriptor
HID_CLASS_DESCRIPTOR_LEN_AND_TYPE descrInfo[HID_MAX_HID_CLASS_DESCRIPTORS];
// Returns HID class specific descriptor length by its type and order number
uint16_t GetHidClassDescrLen(uint8_t type, uint8_t num);
struct HIDInterface {
struct {
uint8_t bmInterface : 3;
uint8_t bmAltSet : 3;
uint8_t bmProtocol : 2;
};
uint8_t epIndex[maxEpPerInterface];
};
uint8_t bConfNum; // configuration number
uint8_t bNumIface; // number of interfaces in the configuration
uint8_t bNumEP; // total number of EP in the configuration
uint32_t qNextPollTime; // next poll time
uint8_t pollInterval;
bool bPollEnable; // poll enable flag
static const uint16_t constBuffLen = 64; // event buffer length
uint8_t prevBuf[constBuffLen]; // previous event buffer
void Initialize();
HIDInterface* FindInterface(uint8_t iface, uint8_t alt, uint8_t proto);
void ZeroMemory(uint8_t len, uint8_t *buf);
bool BuffersIdentical(uint8_t len, uint8_t *buf1, uint8_t *buf2);
void SaveBuffer(uint8_t len, uint8_t *src, uint8_t *dest);
protected:
EpInfo epInfo[totalEndpoints];
HIDInterface hidInterfaces[maxHidInterfaces];
bool bHasReportId;
uint16_t PID, VID; // PID and VID of connected device
// HID implementation
HIDReportParser* GetReportParser(uint8_t id);
virtual uint8_t OnInitSuccessful() {
return 0;
};
virtual void ParseHIDData(HID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf) {
return;
};
public:
HIDUniversal(USB *p);
// HID implementation
bool SetReportParser(uint8_t id, HIDReportParser *prs);
// USBDeviceConfig implementation
uint8_t Init(uint8_t parent, uint8_t port, bool lowspeed);
uint8_t Release();
uint8_t Poll();
virtual uint8_t GetAddress() {
return bAddress;
};
virtual bool isReady() {
return bPollEnable;
};
// UsbConfigXtracter implementation
void EndpointXtract(uint8_t conf, uint8_t iface, uint8_t alt, uint8_t proto, const USB_ENDPOINT_DESCRIPTOR *ep);
// Send report - do not mix with SetReport()!
uint8_t SndRpt(uint16_t nbytes, uint8_t *dataptr);
};
#endif // __HIDUNIVERSAL_H__
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