src/probe.h

   1 ///
   2 /// \file       probe.h
   3 ///             USB Blackberry detection routines
   4 ///
   5
   6 /*
   7     Copyright (C) 2005-2013, Net Direct Inc. (http://www.netdirect.ca/)
   8
   9     This program is free software; you can redistribute it and/or modify
  10     it under the terms of the GNU General Public License as published by
  11     the Free Software Foundation; either version 2 of the License, or
  12     (at your option) any later version.
  13
  14     This program is distributed in the hope that it will be useful,
  15     but WITHOUT ANY WARRANTY; without even the implied warranty of
  16     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  17
  18     See the GNU General Public License in the COPYING file at the
  19     root directory of this project for more details.
  20 */
  21
  22 #ifndef __BARRY_PROBE_H__
  23 #define __BARRY_PROBE_H__
  24
  25 #include "dll.h"
  26 #include "usbwrap.h"
  27 #include "pin.h"
  28 #include <vector>
  29 #include <iosfwd>
  30 #include <stdint.h>
  31
  32 namespace Barry {
  33
  34 class Probe;
  35
  36 struct BXEXPORT ProbeResult
  37 {
  38         friend class Probe;
  39
  40         Usb::DeviceID m_dev;
  41         unsigned char m_interface;
  42         unsigned char m_altsetting;
  43         Barry::Pin m_pin;
  44         Usb::EndpointPair m_ep;
  45         Usb::EndpointPair m_epModem;
  46         // Specifies if it's necessary to clear halt on the
  47         // endpoints before using them. On some devices such
  48         // as the 8830 it's essential to clear halt. On other
  49         // devices such as the Curve 8520 calling clear halt
  50         // can cause them to get into a state where they drop
  51         // packets.
  52         bool m_needClearHalt;
  53         // Specifies if it's necessary to call usb_set_altinterface()
  54         // before attempting to use the end points for this device.
  55         //
  56         // This can help to re-synchronize the state between the USB
  57         // host and the device. However it can also cause usb-storage
  58         // URBs to be lost on some device, so it's only used as a
  59         // last resort.
  60         bool m_needSetAltInterface;
  61         uint8_t m_zeroSocketSequence;
  62         std::string m_description;
  63
  64         // data from a possible ConfigFile (filled in automatically by
  65         // the probe code if available)
  66         std::string m_cfgDeviceName;
  67
  68 private:
  69         // All ProbeResult objects should come from Probe, therefore
  70         // this constructor is private to force the issue.
  71         ProbeResult()
  72                 : m_dev(0), m_interface(0), m_pin(0)
  73                 , m_needClearHalt(false), m_needSetAltInterface(false)
  74                 , m_zeroSocketSequence(0)
  75                 {}
  76
  77 public:
  78         void DumpAll(std::ostream &os) const;
  79         bool HasIpModem() const { return m_epModem.IsComplete(); }
  80
  81         std::string GetDisplayName() const;
  82
  83         bool operator==(const Barry::Pin &pin) const
  84         {
  85                 return m_pin == pin;
  86         }
  87 };
  88
  89 BXEXPORT std::ostream& operator<< (std::ostream &os, const ProbeResult &pr);
  90
  91
  92 class BXEXPORT Probe
  93 {
  94 public:
  95         typedef std::vector<ProbeResult>                Results;
  96
  97         enum LogExceptionBits {
  98                 LOG_BUSY = 0x0001,
  99                 LOG_ACCESS = 0x0002,
 100                 LOG_PERM = 0x0004
 101         };
 102
 103 private:
 104         Usb::DeviceList m_devices;
 105         Results m_results;
 106
 107         unsigned int m_log_exceptions;
 108         std::vector<std::string> m_fail_msgs;
 109         int m_fail_count;
 110
 111         bool m_epp_override;
 112         Usb::EndpointPair m_epp;
 113
 114         BXLOCAL bool CheckSize(const Data &data, unsigned int required);
 115         BXLOCAL bool ParsePIN(const Data &data, uint32_t &pin);
 116         BXLOCAL bool ParseDesc(const Data &data, std::string &desc);
 117
 118 protected:
 119         void ProbeMatching(int vendor, int product,
 120                 const char *busname, const char *devname);
 121         void ProbeDevice(Usb::DeviceID& devid);
 122         void ProbeDeviceEndpoints(Usb::Device &dev, Usb::EndpointPairings &ed, ProbeResult &result);
 123         bool ProbePair(Usb::Device &dev, const Usb::EndpointPair &ep,
 124                 uint32_t &pin, std::string &desc, uint8_t &zeroSocketSequence,
 125                 bool &needClearHalt);
 126         bool ProbeModem(Usb::Device &dev, const Usb::EndpointPair &ep);
 127
 128 public:
 129         /// log_exceptions is a bitmask of low level USB errors to
 130         /// log instead of throw on.  If 0, all USB errors will cause
 131         /// an exception, and thereby stop the probe.  If the error
 132         /// is set in the bitmask, the exception will be caught, and
 133         /// logged in m_fail_msgs, which can be retrieved through
 134         /// GetFailCount() and GetFailMsg().  If auto_dump_log is true,
 135         /// all logged messages will be dumped as well, via the eout() macro,
 136         /// to make sure they are seen, even if the application
 137         /// programmer doesn't deal with them via the API.
 138         Probe(const char *busname = 0, const char *devname = 0,
 139                 const Usb::EndpointPair *epp = 0,
 140                 unsigned int log_exceptions = LOG_BUSY | LOG_ACCESS | LOG_PERM,
 141                 bool auto_dump_log = true);
 142
 143         const Results& GetResults() const { return m_results; }
 144
 145         int GetCount() const { return m_results.size(); }
 146         int GetFailCount() const { return m_fail_count; }
 147
 148         const std::string& GetFailMsg(int index) const { return m_fail_msgs.at(index); }
 149         const ProbeResult& Get(int index) const { return m_results.at(index); }
 150
 151         int FindActive(Barry::Pin pin = 0) const; // returns -1 if pin not found
 152                                                 // or if no devices
 153         static int FindActive(const Results &results, Barry::Pin pin = 0);
 154         static int Find(const Results &results, Barry::Pin pin = 0);
 155 };
 156
 157
 158 } // namespace Barry
 159
 160 #endif
 161