Class: Smartware::SankyoConnection

Inherits:
CommandBasedDevice show all
Defined in:
lib/smartware/drivers/common/sankyo_connection.rb

Defined Under Namespace

Classes: CommandResponse

Constant Summary collapse

STX = 
0xF2
ACK = 
0x06
NAK = 
0x15

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from CommandBasedDevice

#command, #receive_data

Constructor Details

#initialize ⇒ SankyoConnection

Returns a new instance of SankyoConnection.



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# File 'lib/smartware/drivers/common/sankyo_connection.rb', line 30

def initialize
  super

  @command_timer = nil
  @initialize_device = nil
  @ready_for_commands = false
  @state = :drop

  EventMachine.add_periodic_timer(10) { check_dsr! }
  EventMachine.next_tick { check_dsr! }
end

Instance Attribute Details

#initialize_device ⇒ Object

Returns the value of attribute initialize_device.



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# File 'lib/smartware/drivers/common/sankyo_connection.rb', line 28

def initialize_device
  @initialize_device
end

Instance Method Details

#check_dsr! ⇒ Object 



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# File 'lib/smartware/drivers/common/sankyo_connection.rb', line 42

def check_dsr!
  if @io.dsr == 0
    @state = :drop
    kill_queue
  else
    was_ready, @ready_for_commands = @ready_for_commands, true

    if !was_ready
      @initialize_device.call
    end
  end
end