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88 lines
2.6 KiB
88 lines
2.6 KiB
4 months ago
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/*
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* Copyright (C) 2014 Andrew Duggan
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* Copyright (C) 2014 Synaptics Inc
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _HIDDEVICE_H_
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#define _HIDDEVICE_H_
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#include <linux/hidraw.h>
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#include <string>
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#include "rmidevice.h"
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class HIDDevice : public RMIDevice
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{
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public:
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HIDDevice() : RMIDevice(), m_inputReport(NULL), m_outputReport(NULL), m_attnData(NULL),
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m_readData(NULL),
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m_inputReportSize(0),
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m_outputReportSize(0),
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m_featureReportSize(0),
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m_deviceOpen(false)
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{}
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virtual int Open(const char * filename);
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virtual int Read(unsigned short addr, unsigned char *buf,
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unsigned short len);
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virtual int Write(unsigned short addr, const unsigned char *buf,
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unsigned short len);
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virtual int SetMode(int mode);
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virtual int WaitForAttention(struct timeval * timeout = NULL,
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unsigned int source_mask = RMI_INTERUPT_SOURCES_ALL_MASK);
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virtual int GetAttentionReport(struct timeval * timeout, unsigned int source_mask,
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unsigned char *buf, unsigned int *len);
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virtual void Close();
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virtual void RebindDriver();
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~HIDDevice() { Close(); }
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virtual void PrintDeviceInfo();
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private:
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int m_fd;
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struct hidraw_report_descriptor m_rptDesc;
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struct hidraw_devinfo m_info;
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unsigned char *m_inputReport;
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unsigned char *m_outputReport;
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unsigned char *m_attnData;
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unsigned char *m_readData;
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int m_dataBytesRead;
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size_t m_inputReportSize;
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size_t m_outputReportSize;
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size_t m_featureReportSize;
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bool m_deviceOpen;
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enum mode_type {
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HID_RMI4_MODE_MOUSE = 0,
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HID_RMI4_MODE_ATTN_REPORTS = 1,
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HID_RMI4_MODE_NO_PACKED_ATTN_REPORTS = 2,
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};
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int GetReport(int *reportId, struct timeval * timeout = NULL);
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void PrintReport(const unsigned char *report);
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void ParseReportSizes();
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// static HID utility functions
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static bool LookupHidDeviceName(int bus, int vendorId, int productId, std::string &deviceName);
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static bool FindTransportDevice(int bus, std::string & hidDeviceName,
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std::string & transportDeviceName, std::string & driverPath);
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static bool FindHidRawFile(std::string & hidDeviceName, std::string & hidrawFile);
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};
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#endif /* _HIDDEVICE_H_ */
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