Module: Denko::Behaviors::Subcomponents

Included in:
BoardProxy, BusController, Denko::Board
Defined in:
lib/denko/behaviors/subcomponents.rb

Instance Method Summary collapse

Instance Method Details

#add_component(component) ⇒ Object

Main Methods



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# File 'lib/denko/behaviors/subcomponents.rb', line 7

def add_component(component)
  add_single_pin(component)
  add_hw_i2c(component)
  add_hw_spi(component)
  components << component
end

#add_hw_i2c(component) ⇒ Object

I2C



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# File 'lib/denko/behaviors/subcomponents.rb', line 53

def add_hw_i2c(component)
  if component.respond_to?(:i2c_index)
    unless hw_i2c_comps[component.i2c_index]
      hw_i2c_comps[component.i2c_index] = component
    else
      raise StandardError,  "Error adding #{component} to #{self}. I2C dev: #{component.i2c_index} " \
                            "already in use by: #{hw_i2c_comps[component.i2c_index]}"
    end
  end
end

#add_hw_spi(component) ⇒ Object

SPI



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# File 'lib/denko/behaviors/subcomponents.rb', line 75

def add_hw_spi(component)
  if component.respond_to?(:spi_index)
    unless hw_spi_comps[component.spi_index]
      hw_spi_comps[component.spi_index] = component
    else
      raise StandardError,  "Error adding #{component} to #{self}. SPI dev: #{component.spi_index} " \
                            "already in use by: #{hw_spi_comps[component.spi_index]}"
    end
  end
end

#add_single_pin(component) ⇒ Object

Single Pin



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# File 'lib/denko/behaviors/subcomponents.rb', line 29

def add_single_pin(component)
  if component.respond_to?(:pin) && component.pin.class == Integer
    unless single_pin_components[component.pin]
      single_pin_components[component.pin] = component
    else
      raise StandardError,  "Error adding #{component} to #{self}. Pin: #{component.pin} " \
                            "already in use by: #{single_pin_components[component.pin]}"
    end
  end
end

#components ⇒ Object 



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# File 'lib/denko/behaviors/subcomponents.rb', line 22

def components
  @components ||= []
end

#hw_i2c_comps ⇒ Object 



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# File 'lib/denko/behaviors/subcomponents.rb', line 68

def hw_i2c_comps
  @hw_i2c_comps ||= {}
end

#hw_spi_comps ⇒ Object 



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# File 'lib/denko/behaviors/subcomponents.rb', line 90

def hw_spi_comps
  @hw_spi_comps ||= {}
end

#remove_component(component) ⇒ Object 



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# File 'lib/denko/behaviors/subcomponents.rb', line 14

def remove_component(component)
  remove_single_pin(component)
  remove_hw_i2c(component)
  remove_hw_spi(component)
  deleted = components.delete(component)
  component.stop if deleted && component.respond_to?(:stop)
end

#remove_hw_i2c(component) ⇒ Object 



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# File 'lib/denko/behaviors/subcomponents.rb', line 64

def remove_hw_i2c(component)
  hw_i2c_comps.delete(component.i2c_index) if component.respond_to?(:i2c_index)
end

#remove_hw_spi(component) ⇒ Object 



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# File 'lib/denko/behaviors/subcomponents.rb', line 86

def remove_hw_spi(component)
  hw_spi_comps.delete(component.spi_index) if component.respond_to?(:spi_index)
end

#remove_single_pin(component) ⇒ Object 



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# File 'lib/denko/behaviors/subcomponents.rb', line 40

def remove_single_pin(component)
  if component.respond_to?(:pin) && component.pin.class == Integer
    single_pin_components.delete(component.pin)
  end
end

#single_pin_components ⇒ Object 



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# File 'lib/denko/behaviors/subcomponents.rb', line 46

def single_pin_components
  @single_pin_components ||= {}
end