xref: /openbsd/sys/dev/puc/lpt_puc.c (revision 133306f0)
1 /*	$OpenBSD: lpt_puc.c,v 1.2 2000/07/21 17:41:04 mickey Exp $	*/
2 /*	$NetBSD: lpt_puc.c,v 1.1 1998/06/26 18:52:41 cgd Exp $	*/
3 
4 /*
5  * Copyright (c) 1998 Christopher G. Demetriou.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *      This product includes software developed by Christopher G. Demetriou
18  *	for the NetBSD Project.
19  * 4. The name of the author may not be used to endorse or promote products
20  *    derived from this software without specific prior written permission
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 /*
35  * Machine-independent parallel port ('lpt') driver attachment to "PCI
36  * Universal Communications" controller driver.
37  *
38  * Author: Christopher G. Demetriou, May 17, 1998.
39  */
40 
41 #include <sys/types.h>
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/device.h>
45 
46 #include <machine/bus.h>
47 
48 #include <dev/pci/pcivar.h>
49 #include <dev/pci/pucvar.h>
50 #include <dev/ic/lptreg.h>
51 #include <dev/ic/lptvar.h>
52 
53 int	lpt_puc_probe __P((struct device *, void *, void *));
54 void	lpt_puc_attach __P((struct device *, struct device *, void *));
55 
56 struct cfattach lpt_puc_ca = {
57 	sizeof(struct lpt_softc), lpt_puc_probe, lpt_puc_attach
58 };
59 
60 int
61 lpt_puc_probe(parent, match, aux)
62 	struct device *parent;
63 	void *match, *aux;
64 {
65 	struct puc_attach_args *aa = aux;
66 
67 	/*
68 	 * Locators already matched, just check the type.
69 	 */
70 	if (aa->type != PUC_PORT_TYPE_LPT)
71 		return (0);
72 
73 	return (1);
74 }
75 
76 void
77 lpt_puc_attach(parent, self, aux)
78 	struct device *parent, *self;
79 	void *aux;
80 {
81 	struct lpt_softc *sc = (void *)self;
82 	struct puc_attach_args *aa = aux;
83 	const char *intrstr;
84 
85 	sc->sc_iot = aa->t;
86 	sc->sc_ioh = aa->h;
87 
88 	intrstr = pci_intr_string(aa->pc, aa->intrhandle);
89 	sc->sc_ih = pci_intr_establish(aa->pc, aa->intrhandle, IPL_TTY,
90 	    lptintr, sc, sc->sc_dev.dv_xname);
91 	if (sc->sc_ih == NULL) {
92 		printf(": couldn't establish interrupt");
93 		if (intrstr != NULL)
94 			printf(" at %s", intrstr);
95 		printf("\n");
96 		return;
97 	}
98 	printf(": interrupting at %s", intrstr);
99 
100 	sc->sc_state = 0;
101 
102 	lpt_attach_common(sc);
103 }
104