Class: Smartware::Driver::Modem::Standard

Inherits:
Object
  • Object
show all
Defined in:
lib/smartware/drivers/modem/standard.rb

Defined Under Namespace

Classes: LogConnection

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ Standard

Returns a new instance of Standard.



49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
 
# File 'lib/smartware/drivers/modem/standard.rb', line 49

def initialize(config)
  @port = config["port"]
  @balance_ussd = config["balance_ussd"]
  @status_channel_id = config["status_channel"].to_i
  @ppp_channel_id = config["ppp_channel"].to_i
  @poll_interval = config["poll_interval"].to_i
  @balance_interval = config["balance_interval"].to_i
  @apn = config["apn"]

  @state = :closed
  @error = Interface::Modem::MODEM_NOT_AVAILABLE
  @mux = nil
  @status_channel = nil
  @info_requested = false
  @model = "GSM modem"
  @version = ""
  @signal = "+CSQ: 99,99"
  @balance_timer = 0
  @balance = nil
  @ppp_state = :stopped
  @ppp_pid = nil
  @shutdown = false
  @account = nil

  logpipe_smartware, @logpipe_ppp = IO.pipe
  EventMachine.attach logpipe_smartware, LogConnection, self
end

Instance Attribute Details

#account ⇒ Object

Returns the value of attribute account.



47
48
49
 
# File 'lib/smartware/drivers/modem/standard.rb', line 47

def 
  @account
end

#balance ⇒ Object (readonly)

Returns the value of attribute balance.



46
47
48
 
# File 'lib/smartware/drivers/modem/standard.rb', line 46

def balance
  @balance
end

#error ⇒ Object (readonly)

Returns the value of attribute error.



46
47
48
 
# File 'lib/smartware/drivers/modem/standard.rb', line 46

def error
  @error
end

#model ⇒ Object (readonly)

Returns the value of attribute model.



46
47
48
 
# File 'lib/smartware/drivers/modem/standard.rb', line 46

def model
  @model
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



46
47
48
 
# File 'lib/smartware/drivers/modem/standard.rb', line 46

def version
  @version
end

Instance Method Details

#shutdown(callback) ⇒ Object 



77
78
79
80
81
82
83
84
85
86
87
88
89
 
# File 'lib/smartware/drivers/modem/standard.rb', line 77

def shutdown(callback)
  @shutdown_callback = callback

  Logging.logger.info "stopping modem gracefully"
  @shutdown = true
  @shutdown_timer = EventMachine.add_periodic_timer(0.5) do
    if @state == :closed && @ppp_state == :stopped
      Logging.logger.info "modem stopped"
      EventMachine.cancel_timer @shutdown_timer
      @shutdown_callback.call
    end
  end
end

#signal_level ⇒ Object 



91
92
93
94
 
# File 'lib/smartware/drivers/modem/standard.rb', line 91

def signal_level
  value = @signal.gsub("+CSQ: ",'').split(',')[0].to_i
  "#{(-113 + value * 2)} dbm"
end

#tick ⇒ Object 



96
97
98
99
100
101
102
103
104
105
 
# File 'lib/smartware/drivers/modem/standard.rb', line 96

def tick
  begin
    modem_tick
    ppp_tick

    wait_for_event
  rescue => e
    Logging.logger.error "uncatched exception in modem monitor: #{e}"
  end
end

#unsolicited(type, fields) ⇒ Object 



107
108
109
110
111
112
 
# File 'lib/smartware/drivers/modem/standard.rb', line 107

def unsolicited(type, fields)
  case type
  when "CUSD"
    ussd *fields
  end
end

#ussd(mode, string = nil, dcs = nil) ⇒ Object 



114
115
116
117
118
119
120
121
122
123
124
125
126
127
 
# File 'lib/smartware/drivers/modem/standard.rb', line 114

def ussd(mode, string = nil, dcs = nil)
  if mode != "0"
    Logging.logger.warn "USSD completed with mode #{mode}, expected 0"
  end

  if string
    @balance = string.scan(/\w{4}/)
    .map! { |i| [ i.hex ].pack("U") }
    .join
    .strip
  else
    @balance = nil
  end
end