at91_tc.h

AT91RM9200的定时器驱动(linux2.4内核）

/*
 *  AT91RM9200 TC driver for use for high speed packet sending/receiving
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 */

#ifndef AT91_TC
#define AT91_TC

#define TC_NUM_PORTS 6  /* TC0, TC1, TC2, TC3, TC4, TC5 */

/* private data per open() of this driver */

struct tc_private {
  struct tc_private *next;
  AT91PS_TC p_tc;  /* pointer to this Timer Counter */
  AT91PS_TCB p_tcb;  /* pointer to this Timer Counter Block */
	/* These fields are for PA and PB only */
  spinlock_t lock1;  /* some spinlocks for saving/restoring interrupt levels */
  int first_time_flag;
  wait_queue_head_t tc_wait;
  int minor;
  int irq;
};

#endif