1/* $NetBSD: opms_isa.c,v 1.11 2011/03/06 14:58:43 tsutsui Exp $ */
2
3/*
4 * Copyright (c) 1995, 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#include <sys/cdefs.h>
31__KERNEL_RCSID(0, "$NetBSD: opms_isa.c,v 1.11 2011/03/06 14:58:43 tsutsui Exp $");
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/tty.h>
36#include <sys/device.h>
37
38#include <sys/bus.h>
39
40#include <dev/isa/isareg.h>
41#include <dev/isa/isavar.h>
42
43#include <arc/dev/pcconsvar.h>
44#include <arc/dev/opmsvar.h>
45
46static int	opms_isa_match(device_t, cfdata_t, void *);
47static void	opms_isa_attach(device_t, device_t, void *);
48
49CFATTACH_DECL_NEW(opms_isa, sizeof(struct opms_softc),
50    opms_isa_match, opms_isa_attach, NULL, NULL);
51
52struct pccons_config *pccons_isa_conf;	/* share stroage with pccons_isa.c */
53
54static int
55opms_isa_match(device_t parent, cfdata_t cf, void *aux)
56{
57	struct isa_attach_args *ia = aux;
58	bus_addr_t iobase = IO_KBD;
59	bus_size_t iosize = IO_KBDSIZE;
60	int irq = 12;
61
62	if (ia->ia_nio < 1)
63		return 0;
64	if (ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT)
65		iobase = ia->ia_io[0].ir_addr;
66#if 0	/* XXX isa.c */
67	if (ia->ia_iosize != 0)
68		iosize = ia->ia_iosize;
69#endif
70	if (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ)
71		irq = ia->ia_irq[0].ir_irq;
72
73#if 0
74	/* If values are hardwired to something that they can't be, punt. */
75	if (iobase != IO_KBD || iosize != IO_KBDSIZE ||
76	    ia->ia_maddr != MADDRUNK || ia->ia_msize != 0 ||
77	    ia->ia_irq != 1 || ia->ia_drq != DRQUNK)
78		return 0;
79#endif
80
81	if (pccons_isa_conf == NULL)
82		return 0;
83
84	if (!opms_common_match(ia->ia_iot, pccons_isa_conf))
85		return 0;
86
87	ia->ia_nio = 1;
88	ia->ia_io[0].ir_addr = iobase;
89	ia->ia_io[0].ir_size = iosize;
90
91	ia->ia_nirq = 1;
92	ia->ia_irq[0].ir_irq = irq;
93
94	ia->ia_niomem = 0;
95	ia->ia_ndrq = 0;
96
97	return 1;
98}
99
100static void
101opms_isa_attach(device_t parent, device_t self, void *aux)
102{
103	struct opms_softc *sc = device_private(self);
104	struct isa_attach_args *ia = aux;
105
106	sc->sc_dev = self;
107
108	aprint_normal("\n");
109
110	isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_TTY,
111	    pcintr, sc);
112	opms_common_attach(sc, ia->ia_iot, pccons_isa_conf);
113}
114