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      1 /*	$NetBSD: lptvar.h,v 1.5 2008/04/28 20:23:54 martin Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999, 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Steve C. Woodford.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Common front-end for mvme68k/mvme88k parallel printer ports
     34  */
     35 
     36 #ifndef __mvme_lptvar_h
     37 #define __mvme_lptvar_h
     38 
     39 #include <sys/callout.h>
     40 
     41 struct lpt_funcs;
     42 
     43 
     44 struct lpt_softc {
     45 	device_t		sc_dev;
     46 	struct callout		sc_wakeup_ch;
     47 	struct lpt_funcs	*sc_funcs;
     48 	void			*sc_arg;
     49 	size_t			sc_count;
     50 	struct buf		*sc_inbuf;
     51 	u_char			*sc_cp;
     52 	int			sc_spinmax;
     53 	u_char			sc_state;
     54 #define	LPT_OPEN	0x01	/* device is open */
     55 #define	LPT_OBUSY	0x02	/* printer is busy doing output */
     56 #define	LPT_INIT	0x04	/* waiting to initialize for open */
     57 	u_char			sc_flags;
     58 #define	LPT_FAST_STROBE	0x10	/* Select 1.6uS strobe pulse */
     59 #define	LPT_AUTOLF	0x20	/* automatic LF on CR */
     60 #define	LPT_NOPRIME	0x40	/* don't prime on open */
     61 #define	LPT_NOINTR	0x80	/* do not use interrupt */
     62 
     63 	/* Back-end specific stuff */
     64 	bus_space_tag_t		sc_bust;
     65 	bus_space_handle_t	sc_bush;
     66 	int			sc_ipl;
     67 	u_char			sc_icr;
     68 	u_char			sc_laststatus;
     69 	struct evcnt		sc_evcnt;
     70 };
     71 
     72 
     73 struct lpt_funcs {
     74 	void	(*lf_open)(struct lpt_softc *, int);
     75 	void	(*lf_close)(struct lpt_softc *);
     76 	void	(*lf_iprime)(struct lpt_softc *);
     77 	void	(*lf_speed)(struct lpt_softc *, int);
     78 	int	(*lf_notrdy)(struct lpt_softc *, int);
     79 	void	(*lf_wrdata)(struct lpt_softc *, u_char);
     80 };
     81 
     82 #define	LPT_STROBE_FAST	0
     83 #define LPT_STROBE_SLOW	1
     84 
     85 extern	void	lpt_attach_subr(struct lpt_softc *);
     86 extern	int	lpt_intr(struct lpt_softc *);
     87 
     88 #endif	/* __mvme_lptvar_h */
     89