drivers/scsi/bfa/include/bfa_timer.h

   1 /*
   2  * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
   3  * All rights reserved
   4  * www.brocade.com
   5  *
   6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License (GPL) Version 2 as
  10  * published by the Free Software Foundation
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  */
  17 #ifndef __BFA_TIMER_H__
  18 #define __BFA_TIMER_H__
  19
  20 #include <bfa_os_inc.h>
  21 #include <cs/bfa_q.h>
  22
  23 struct bfa_s;
  24
  25 typedef void (*bfa_timer_cbfn_t)(void *);
  26
  27 /**
  28  * BFA timer data structure
  29  */
  30 struct bfa_timer_s {
  31         struct list_head        qe;
  32         bfa_timer_cbfn_t timercb;
  33         void            *arg;
  34         int             timeout;        /**< in millisecs. */
  35 };
  36
  37 /**
  38  * Timer module structure
  39  */
  40 struct bfa_timer_mod_s {
  41         struct list_head timer_q;
  42 };
  43
  44 #define BFA_TIMER_FREQ 200 /**< specified in millisecs */
  45
  46 void bfa_timer_beat(struct bfa_timer_mod_s *mod);
  47 void bfa_timer_init(struct bfa_timer_mod_s *mod);
  48 void bfa_timer_begin(struct bfa_timer_mod_s *mod, struct bfa_timer_s *timer,
  49                         bfa_timer_cbfn_t timercb, void *arg,
  50                         unsigned int timeout);
  51 void bfa_timer_stop(struct bfa_timer_s *timer);
  52
  53 #endif /* __BFA_TIMER_H__ */