Class: Interlnk::Protocol

Inherits:
Object
  • Object
show all
Defined in:
lib/interlnk/protocol.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(channel:) ⇒ Protocol

Returns a new instance of Protocol.



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# File 'lib/interlnk/protocol.rb', line 9

def initialize(channel:)
  @channel = channel
  @channel.connect
  @channel.baud = 115200
  @server_info = get_server_info
  @init_info = do_init
end

Instance Attribute Details

#init_info ⇒ Object (readonly)

Returns the value of attribute init_info.



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# File 'lib/interlnk/protocol.rb', line 7

def init_info
  @init_info
end

#server_info ⇒ Object (readonly)

Returns the value of attribute server_info.



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# File 'lib/interlnk/protocol.rb', line 7

def server_info
  @server_info
end

Instance Method Details

#debug=(debug_state) ⇒ Object 



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# File 'lib/interlnk/protocol.rb', line 17

def debug=(debug_state)
  @channel.debug = debug_state
end

#do_init ⇒ Object 



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# File 'lib/interlnk/protocol.rb', line 32

def do_init
  @channel.channel_turnaround_to_send
  initr = Packet::InitRequest.new
  @channel.send_packet initr.bytes

  @channel.channel_turnaround_to_recv
  # TODO: do something with the mappings received
  @channel.receive_packet(type: Packet::InitAnswer)
end

#get_bpb(drive_nbr) ⇒ Object 



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# File 'lib/interlnk/protocol.rb', line 50

def get_bpb(drive_nbr)
  @channel.channel_turnaround_to_send
  bpbr = Packet::BpbRequest.new(unit_nbr: drive_nbr)
  @channel.send_packet bpbr.bytes
  @channel.channel_turnaround_to_recv
  @channel.receive_packet(type: Packet::BpbAnswer).bpb
end

#get_drive_info(drive_nbr) ⇒ Object 



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# File 'lib/interlnk/protocol.rb', line 42

def get_drive_info(drive_nbr)
  @channel.channel_turnaround_to_send
  # TODO: convert this to a proper request packet type
  @channel.send_packet([0x1C, drive_nbr]) # packet type: drive_info_request
  @channel.channel_turnaround_to_recv
  @channel.receive_packet(type: Packet::DriveInfoAnswer)
end

#get_sectors(unit_nbr: nil, start_sector: nil, nbr_sectors: nil) ⇒ Object 



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# File 'lib/interlnk/protocol.rb', line 58

def get_sectors(unit_nbr: nil, start_sector: nil, nbr_sectors: nil)
  @channel.channel_turnaround_to_send
  readr = Packet::ReadRequest.new(unit_nbr: unit_nbr, start_sector: start_sector, nbr_sectors: nbr_sectors)
  @channel.send_packet readr.bytes
  @channel.channel_turnaround_to_recv
  # TODO: look at the answering status to make sure it worked
  @channel.receive_packet(type: Packet::IoAnswer)

  @channel.request_more_data
  # get the actual sector data
  @channel.receive_packet
end

#get_server_info ⇒ Object 



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# File 'lib/interlnk/protocol.rb', line 21

def get_server_info
  sir = Packet::ServerInfoRequest.new
  @channel.send_packet([0x00, 0x00]) # packet type: server_info_request
  @channel.send_packet(sir.bytes)

  # now we need to get ready to receive the SIR data
  @channel.channel_turnaround_to_recv

  @channel.receive_packet(type: Packet::ServerInfoAnswer)
end

#idle ⇒ Object 



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# File 'lib/interlnk/protocol.rb', line 71

def idle
  @channel.perform_idle
end