1 /* $NetBSD: isabeep.c,v 1.10 2011/06/06 16:42:18 matt Exp $ */ 2 3 /* 4 * Copyright (c) 1995, 1996 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30 #include <sys/cdefs.h> 31 __KERNEL_RCSID(0, "$NetBSD: isabeep.c,v 1.10 2011/06/06 16:42:18 matt Exp $"); 32 33 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 34 35 #include <sys/types.h> 36 #include <sys/param.h> 37 #include <sys/time.h> 38 #include <sys/systm.h> 39 #include <sys/errno.h> 40 #include <sys/device.h> 41 #include <uvm/uvm_extern.h> 42 43 #include <dev/isa/isavar.h> 44 45 #include "pcppi.h" 46 #if NPCPPI > 0 47 #include <dev/isa/pcppivar.h> 48 49 int isabeepmatch(device_t, cfdata_t, void *); 50 void isabeepattach(device_t, device_t, void *); 51 52 CFATTACH_DECL_NEW(isabeep, 0, 53 isabeepmatch, isabeepattach, NULL, NULL); 54 55 static int ppi_attached; 56 static pcppi_tag_t ppicookie; 57 58 int 59 isabeepmatch(device_t parent, cfdata_t match, void *aux) 60 { 61 return (!ppi_attached); 62 } 63 64 void 65 isabeepattach(device_t parent, device_t self, void *aux) 66 { 67 aprint_normal("\n"); 68 69 ppicookie = ((struct pcppi_attach_args *)aux)->pa_cookie; 70 ppi_attached = 1; 71 } 72 #endif 73 74 void 75 isabeep(int pitch, int period) 76 { 77 #if NPCPPI > 0 78 if (ppi_attached) 79 pcppi_bell(ppicookie, pitch, period, 0); 80 #endif 81 } 82