arch/all-pc/timer/beginio.c

   1 /*
   2     Copyright © 1995-2011, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: BeginIO - Start up a timer.device request.
   6     Lang: english
   7 */
   8
   9 #include <aros/debug.h>
  10 #include <aros/libcall.h>
  11 #include <asm/io.h>
  12
  13 #include "ticks.h"
  14
  15 AROS_LH1(void, BeginIO,
  16          AROS_LHA(struct timerequest *, timereq, A1),
  17          struct TimerBase *, TimerBase, 5, Timer)
  18 {
  19     AROS_LIBFUNC_INIT
  20
  21     D(bug("[Timereq 0x%p] unit %ld, command %d\n", timereq, timereq->tr_node.io_Unit, timereq->tr_node.io_Command));
  22
  23 #if DEBUG
  24     if (timereq->tr_node.io_Command == TR_ADDREQUEST)
  25     {
  26         bug("[Timereq 0x%p] Request time %d sec %d usec\n", timereq, timereq->tr_time.tv_secs, timereq->tr_time.tv_micro);
  27     }
  28 #endif
  29
  30     if (common_BeginIO(timereq, TimerBase))
  31     {
  32         D(bug("[Timereq 0x%p] Updating hardware interrupt request\n", timereq));
  33
  34         Disable();
  35         Timer0Setup(TimerBase);
  36         Enable();
  37     }
  38
  39 #if DEBUG
  40     if (timereq->tr_node.io_Command == TR_ADDREQUEST)
  41     {
  42         bug("[Timereq 0x%p] Request time %d sec %d usec\n", timereq, timereq->tr_time.tv_secs, timereq->tr_time.tv_micro);
  43         bug("[Timereq 0x%p] Elapsed time %d sec %d usec\n", timereq, TimerBase->tb_Elapsed.tv_secs, TimerBase->tb_Elapsed.tv_micro);
  44     }
  45 #endif
  46
  47     AROS_USERFUNC_EXIT
  48 }