hplm16c62pgeneraliopinp.nc

tinyos-2.x.rar

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/**
 * Generic pin access for pins mapped into I/O space.
 *
 * @author Henrik Makitaavola <[e-mail]>
 * @author Martin Turon <[e-mail]>
 * @author David Gay <[e-mail]>
 */
generic module HplM16c62pGeneralIOPinP (uint16_t port_addr, 
				 uint16_t ddr_addr, 
				 uint16_t bit)
{
  provides interface GeneralIO as IO;
}
implementation
{
#define port (*TCAST(volatile uint8_t* ONE, port_addr))
#define ddr (*TCAST(volatile uint8_t* ONE, ddr_addr))

  inline async command bool IO.get()        { return READ_BIT (port, bit); }
  inline async command void IO.set()        { SET_BIT  (port, bit); }
  inline async command void IO.clr()        { CLR_BIT  (port, bit); }
  inline async command void IO.toggle()     { atomic FLIP_BIT (port, bit); }
    
  inline async command void IO.makeInput()  { CLR_BIT  (ddr, bit);  }
  inline async command bool IO.isInput()    { return !READ_BIT(ddr, bit); }
  inline async command void IO.makeOutput() { SET_BIT  (ddr, bit);  }
  inline async command bool IO.isOutput()   { return READ_BIT(ddr, bit); }
}