1/* $NetBSD: pccons_isa.c,v 1.11 2011/03/06 14:58:43 tsutsui Exp $ */
2/* NetBSD: vga_isa.c,v 1.4 2000/08/14 20:14:51 thorpej Exp  */
3
4/*
5 * Copyright (c) 1995, 1996 Carnegie-Mellon University.
6 * All rights reserved.
7 *
8 * Author: Chris G. Demetriou
9 *
10 * Permission to use, copy, modify and distribute this software and
11 * its documentation is hereby granted, provided that both the copyright
12 * notice and this permission notice appear in all copies of the
13 * software, derivative works or modified versions, and any portions
14 * thereof, and that both notices appear in supporting documentation.
15 *
16 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
17 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
18 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
19 *
20 * Carnegie Mellon requests users of this software to return to
21 *
22 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
23 *  School of Computer Science
24 *  Carnegie Mellon University
25 *  Pittsburgh PA 15213-3890
26 *
27 * any improvements or extensions that they make and grant Carnegie the
28 * rights to redistribute these changes.
29 */
30
31#include <sys/cdefs.h>
32__KERNEL_RCSID(0, "$NetBSD: pccons_isa.c,v 1.11 2011/03/06 14:58:43 tsutsui Exp $");
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/device.h>
37
38#include <sys/bus.h>
39
40#include <dev/isa/isavar.h>
41
42#include <arc/dev/pcconsvar.h>
43#include <arc/isa/pccons_isavar.h>
44
45static int	pccons_isa_match(device_t, cfdata_t, void *);
46static void	pccons_isa_attach(device_t, device_t, void *);
47
48CFATTACH_DECL_NEW(pc_isa, sizeof(struct pc_softc),
49    pccons_isa_match, pccons_isa_attach, NULL, NULL);
50
51struct pccons_config *pccons_isa_conf;
52
53static int
54pccons_isa_match(device_t parent, cfdata_t cf, void *aux)
55{
56	struct isa_attach_args *ia = aux;
57	bus_addr_t iobase = 0x3b0;	/* XXX mono 0x3b0 color 0x3c0 */
58	bus_size_t iosize = 0x30;	/* XXX 0x20 */
59	bus_addr_t maddr = 0xa0000;
60	bus_size_t msize = 0x20000;
61	int irq = 1;
62
63	if (ia->ia_nio < 1)
64		return 0;
65	if (ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT)
66		iobase = ia->ia_io[0].ir_addr;
67#if 0	/* XXX isa.c */
68	if (ia->ia_iosize != 0)
69		iosize = ia->ia_iosize;
70#endif
71	if (ia->ia_niomem < 1)
72		return 0;
73	if (ia->ia_iomem[0].ir_addr != ISA_UNKNOWN_IOMEM)
74		maddr = ia->ia_iomem[0].ir_addr;
75	if (ia->ia_iomem[0].ir_size != ISA_UNKNOWN_IOSIZ)
76		msize = ia->ia_iomem[0].ir_size;
77
78	if (ia->ia_nirq < 1)
79		return 0;
80	if (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ)
81		irq = ia->ia_irq[0].ir_irq;
82
83#if 0
84	/* If values are hardwired to something that they can't be, punt. */
85	if (iobase != 0x3b0 || iosize != 0x30 ||
86	    maddr != 0xa0000 || msize != 0x20000 ||
87	    ia->ia_irq != 1 || ia->ia_drq != DRQUNK)
88		return 0;
89#endif
90
91	if (pccons_isa_conf == NULL)
92		return 0;
93
94	if (!pccons_common_match(ia->ia_iot, ia->ia_memt, ia->ia_iot,
95	    pccons_isa_conf))
96		return 0;
97
98	ia->ia_nio = 1;
99	ia->ia_io[0].ir_addr = iobase;
100	ia->ia_io[0].ir_size = iosize;
101
102	ia->ia_niomem = 1;
103	ia->ia_iomem[0].ir_addr = maddr;
104	ia->ia_iomem[0].ir_size = msize;
105
106	ia->ia_nirq = 1;
107	ia->ia_irq[0].ir_irq = irq;
108
109	ia->ia_ndrq = 0;
110
111	return 1;
112}
113
114static void
115pccons_isa_attach(device_t parent, device_t self, void *aux)
116{
117	struct pc_softc *sc = device_private(self);
118	struct isa_attach_args *ia = aux;
119
120	sc->sc_dev = self;
121
122	isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_TTY,
123	    pcintr, sc);
124	pccons_common_attach(sc, ia->ia_iot, ia->ia_memt, ia->ia_iot,
125	    pccons_isa_conf);
126}
127
128int
129pccons_isa_cnattach(bus_space_tag_t iot, bus_space_tag_t memt)
130{
131
132	if (pccons_isa_conf == NULL)
133		return ENXIO;
134
135	pccons_common_cnattach(iot, memt, iot, pccons_isa_conf);
136	return 0;
137}
138