Module: Denko::I2C::BusCommon

Includes:
Behaviors::BusControllerAddressed, Behaviors::Lifecycle, Behaviors::Reader
Included in:
BitBang, Bus
Defined in:
lib/denko/i2c/bus_common.rb

Constant Summary

Constants included from Behaviors::Lifecycle

Behaviors::Lifecycle::CALLBACK_METHODS

Constants included from Behaviors::Reader

Behaviors::Reader::READ_WAIT_TIME

Instance Attribute Summary

Attributes included from Behaviors::State

#state

Attributes included from Behaviors::Component

#board, #params

Instance Method Summary collapse

Methods included from Behaviors::Lifecycle

included

Methods included from Behaviors::Reader

#_read, #read, #read_busy?, #read_nb, #read_raw, #read_using, #update

Methods included from Behaviors::Callbacks

#add_callback, #callbacks, #pre_callback_filter, #remove_callback, #update

Methods included from Behaviors::State

#update_state

Methods included from Behaviors::BusControllerAddressed

#add_component

Methods included from Behaviors::BusController

#mutex

Methods included from Behaviors::Subcomponents

#add_component, #add_hw_i2c, #add_hw_spi, #add_single_pin, #components, #hw_i2c_comps, #hw_spi_comps, #remove_component, #remove_hw_i2c, #remove_hw_spi, #remove_single_pin, #single_pin_components

Methods included from Behaviors::Component

#initialize, #micro_delay

Instance Method Details

#bubble_callbacks ⇒ Object 



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# File 'lib/denko/i2c/bus_common.rb', line 27

def bubble_callbacks
  add_callback(:bus_controller) do |data|
    bytes = nil

    # Array data from PiBoard.
    if data.class == Array
      address = data[0]
      bytes = data[1..-1]

    # String data from microcontroller.
    elsif (data.class == String) && (data.match /\A\d+-/)
      address, bytes = data.split("-", 2)
      address = address.to_i
      bytes = bytes.split(",").map(&:to_i)
      bytes = nil if bytes.empty?
    end

    # Update components.
    components.each { |c| c.update(bytes) if c.address == address } if bytes
  end
end

#found_devices ⇒ Object 



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# File 'lib/denko/i2c/bus_common.rb', line 12

def found_devices
  @found_devices ||= []
end

#search ⇒ Object 



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# File 'lib/denko/i2c/bus_common.rb', line 16

def search
  addresses = read_using -> { _search }
  if addresses.class == String
    @found_devices = addresses.split(":").map(&:to_i).reject{ |e| e==0 }
  elsif addresses.class == Array
    # 0th element being 0 (invalid address) means the array contains search results,
    # instead of bytes read from a peripheral. Remove it.
    @found_devices = addresses - [0]
  end
end