1/* $NetBSD: pcppivar.h,v 1.12 2017/06/14 05:01:35 pgoyette Exp $ */
2
3/*
4 * Copyright (c) 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#ifndef _PCPPIVAR_H_
31#define _PCPPIVAR_H_
32
33typedef void *pcppi_tag_t;
34
35struct pcppi_attach_args {
36 pcppi_tag_t pa_cookie;
37 void (*pa_bell_func)(pcppi_tag_t, int, int, int);
38};
39
40struct pcppi_softc {
41 device_t sc_dv;
42
43 bus_space_tag_t sc_iot;
44 bus_space_handle_t sc_ppi_ioh;
45 bus_size_t sc_size;
46 device_t sc_timer;
47
48 int sc_bellactive, sc_bellpitch;
49 int sc_timeout;
50
51 kcondvar_t sc_slp;
52 callout_t sc_bell_ch;
53};
54
55void pcppi_attach(struct pcppi_softc *);
56int pcppi_detach(device_t, int);
57
58#define PCPPI_BELL_SLEEP 0x01 /* synchronous; sleep for complete */
59#define PCPPI_BELL_POLL 0x02 /* synchronous; poll for complete */
60
61void pcppi_bell(pcppi_tag_t, int, int, int);
62void pcppi_bell_locked(pcppi_tag_t, int, int, int);
63
64#endif /* ! _PCPPIVAR_H_ */
65