hplpxa27xinterrupt.nc

tinyos2.0版本驱动

// $Id: HplPXA27xInterrupt.nc,v 1.6 2008/06/11 00:46:23 razvanm Exp $
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/**
 * This interface supports the core peripheral interrupts of the PXA27X 
 * processor.  
 * It is usually parameterized based on the Peripheral ID (PPID) of the 
 * interrupt signal.
 * ARM interrupt levels (IRQ/FIQ) are established by wiring.
 * Priorities are established by a static table (TOSH_IRP_TABLE)
 *
 * Components implementing this interface are expected to provide reentrant
 * (i.e. atomic) semantics.
 *
 * @author: Philip Buonadonna
 */

interface HplPXA27xInterrupt
{
  /** 
   * Allocates a given peripheral interrupt with the PXA27X interrupt manager.
   * Specifically, it establishes the interrupt level (IRQ or FIQ) and the 
   * priority. 
   */
  async command error_t allocate();

  /**
   * Enables a periperhal interrupt.
   */
  async command void enable();

  /**
   * Disables a peripheral interrupt.
   */
  async command void disable();

  /**
   * The peripheral interrupt event.
   */
  async event void fired();
}