/* $NetBSD: pcppivar.h,v 1.12 2017/06/14 05:01:35 pgoyette Exp $ */

/* $NetBSD: pcppivar.h,v 1.12 2017/06/14 05:01:35 pgoyette Exp $ */

/*
* Copyright (c) 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or [email protected]
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/

#ifndef _PCPPIVAR_H_
#define _PCPPIVAR_H_

typedef void *pcppi_tag_t;

struct pcppi_attach_args {
pcppi_tag_t pa_cookie;
void (*pa_bell_func)(pcppi_tag_t, int, int, int);
};

struct pcppi_softc {
device_t sc_dv;

bus_space_tag_t sc_iot;
bus_space_handle_t sc_ppi_ioh;
bus_size_t sc_size;
device_t sc_timer;

int sc_bellactive, sc_bellpitch;
int sc_timeout;

kcondvar_t sc_slp;
callout_t sc_bell_ch;
};

void pcppi_attach(struct pcppi_softc *);
int pcppi_detach(device_t, int);

#define PCPPI_BELL_SLEEP 0x01 /* synchronous; sleep for complete */
#define PCPPI_BELL_POLL 0x02 /* synchronous; poll for complete */

void pcppi_bell(pcppi_tag_t, int, int, int);
void pcppi_bell_locked(pcppi_tag_t, int, int, int);

#endif /* ! _PCPPIVAR_H_ */