xserver-multidpi/hw/xfree86/os-support/linux/lnx_bell.c
Daniel Stone 81728558a0 input: add non-keyboard bell ringing function
Add a generic 'ring the bell' function (console bell on Linux and BSD,
/dev/audio on Solaris), and add DDX functions for this.  Make this the
core keyboard's bell.
Port Xvfb and Xnest to this.
Port XFree86 to this, with OS-specific hooks for Linux, BSD, and Solaris
taken from foo_io.c in the old layer.
2006-11-01 23:10:26 +02:00

44 lines
1.4 KiB
C

/*
* Copyright © 2006 Daniel Stone
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and that
* both that this copyright notice and this permission notice appear in
* supporting electronic documentation.
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR AUTHORS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Author: Daniel Stone <daniel@fooishbar.org>
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <sys/ioctl.h>
#include <linux/kd.h>
#include "xf86.h"
#include "xf86Priv.h"
_X_EXPORT void
xf86OSRingBell(int loudness, int pitch, int duration)
{
if (xf86Info.consoleFd == -1 || !pitch || !loudness)
return;
ioctl(xf86Info.consoleFd, KDMKTONE,
((1193190 / pitch) & 0xffff) |
(((unsigned long)duration * loudness / 50) << 16));
}