1/*	$NetBSD: lptvar.h,v 1.55 2008/02/22 20:53:58 dyoung Exp $	*/
2
3/*
4 * Copyright (c) 1993, 1994 Charles M. Hannum.
5 * Copyright (c) 1990 William F. Jolitz, TeleMuse
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This software is a component of "386BSD" developed by
19 *	William F. Jolitz, TeleMuse.
20 * 4. Neither the name of the developer nor the name "386BSD"
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS A COMPONENT OF 386BSD DEVELOPED BY WILLIAM F. JOLITZ
25 * AND IS INTENDED FOR RESEARCH AND EDUCATIONAL PURPOSES ONLY. THIS
26 * SOFTWARE SHOULD NOT BE CONSIDERED TO BE A COMMERCIAL PRODUCT.
27 * THE DEVELOPER URGES THAT USERS WHO REQUIRE A COMMERCIAL PRODUCT
28 * NOT MAKE USE OF THIS WORK.
29 *
30 * FOR USERS WHO WISH TO UNDERSTAND THE 386BSD SYSTEM DEVELOPED
31 * BY WILLIAM F. JOLITZ, WE RECOMMEND THE USER STUDY WRITTEN
32 * REFERENCES SUCH AS THE  "PORTING UNIX TO THE 386" SERIES
33 * (BEGINNING JANUARY 1991 "DR. DOBBS JOURNAL", USA AND BEGINNING
34 * JUNE 1991 "UNIX MAGAZIN", GERMANY) BY WILLIAM F. JOLITZ AND
35 * LYNNE GREER JOLITZ, AS WELL AS OTHER BOOKS ON UNIX AND THE
36 * ON-LINE 386BSD USER MANUAL BEFORE USE. A BOOK DISCUSSING THE INTERNALS
37 * OF 386BSD ENTITLED "386BSD FROM THE INSIDE OUT" WILL BE AVAILABLE LATE 1992.
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER ``AS IS'' AND
40 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
42 * ARE DISCLAIMED.  IN NO EVENT SHALL THE DEVELOPER BE LIABLE
43 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
44 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
45 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
47 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
48 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
49 * SUCH DAMAGE.
50 */
51
52/*
53 * Device Driver for AT style parallel printer port
54 */
55
56#ifndef _LPT_VAR_H_
57#define _LPT_VAR_H_
58
59#include <sys/callout.h>
60
61struct lpt_softc {
62	device_t sc_dev;
63	void *sc_ih;
64	callout_t sc_wakeup_ch;
65	size_t sc_count;
66	void *sc_sih;
67	void *sc_inbuf;
68	u_char *sc_cp;
69	int sc_spinmax;
70	bus_space_tag_t sc_iot;
71	bus_space_handle_t sc_ioh;
72	u_char sc_dev_ok;	/* device attached correctly */
73	u_char sc_state;
74#define	LPT_OPEN	0x01	/* device is open */
75#define	LPT_OBUSY	0x02	/* printer is busy doing output */
76#define	LPT_INIT	0x04	/* waiting to initialize for open */
77	u_char sc_flags;
78#define	LPT_AUTOLF	0x20	/* automatic LF on CR */
79#define	LPT_NOPRIME	0x40	/* don't prime on open */
80#define	LPT_NOINTR	0x80	/* do not use interrupt */
81	u_char sc_control;
82	u_char sc_laststatus;
83};
84
85#define LPS_INVERT      (LPS_SELECT|LPS_NERR|LPS_NBSY|LPS_NACK)
86#define LPS_MASK        (LPS_SELECT|LPS_NERR|LPS_NBSY|LPS_NACK|LPS_NOPAPER)
87#define NOT_READY()     ((bus_space_read_1(iot, ioh, lpt_status) ^ LPS_INVERT) & LPS_MASK)
88#define NOT_READY_ERR() lptnotready(bus_space_read_1(iot, ioh, lpt_status), sc)
89
90int lptnotready(u_char, struct lpt_softc *);
91void lptwakeup(void *arg);
92int lptpushbytes(struct lpt_softc *);
93
94void lpt_attach_subr(struct lpt_softc *);
95int lpt_detach_subr(device_t, int);
96int lptintr(void *);
97
98#endif /* _LPT_VAR_H_ */
99