reactos/hal/halppc/generic/beep.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS kernel
   4  * FILE:            ntoskrnl/hal/x86/beep.c
   5  * PURPOSE:         Speaker function (it's only one)
   6  * PROGRAMMER:      Eric Kohl
   7  * UPDATE HISTORY:
   8  *                  Created 31/01/99
   9  */
  10
  11 /* INCLUDES *****************************************************************/
  12
  13 #include <hal.h>
  14 #define NDEBUG
  15 #include <debug.h>
  16
  17
  18 /* CONSTANTS *****************************************************************/
  19
  20 #define TIMER2     0x42
  21 #define TIMER3     0x43
  22 #define PORT_B     0x61
  23 #define CLOCKFREQ  1193167
  24
  25
  26 /* FUNCTIONS *****************************************************************/
  27 /*
  28  * FUNCTION: Beeps the speaker.
  29  * ARGUMENTS:
  30  *       Frequency = If 0, the speaker will be switched off, otherwise
  31  *                   the speaker beeps with the specified frequency.
  32  */
  33
  34 BOOLEAN
  35 NTAPI
  36 HalMakeBeep (
  37         ULONG   Frequency
  38         )
  39 {
  40     return TRUE;
  41 }
  42