1 /* $NetBSD: opms_isa.c,v 1.13 2023/08/30 09:17:46 andvar 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 1.13 2023/08/30 09:17:46 andvar 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 #include <arc/isa/pccons_isavar.h>
46
47 static int opms_isa_match(device_t, cfdata_t, void *);
48 static void opms_isa_attach(device_t, device_t, void *);
49
50 CFATTACH_DECL_NEW(opms_isa, sizeof(struct opms_softc),
51 opms_isa_match, opms_isa_attach, NULL, NULL);
52
53 static int
opms_isa_match(device_t parent,cfdata_t cf,void * aux)54 opms_isa_match(device_t parent, cfdata_t cf, void *aux)
55 {
56 struct isa_attach_args *ia = aux;
57 bus_addr_t iobase = IO_KBD;
58 bus_size_t iosize = IO_KBDSIZE;
59 int irq = 12;
60
61 if (ia->ia_nio < 1)
62 return 0;
63 if (ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT)
64 iobase = ia->ia_io[0].ir_addr;
65 #if 0 /* XXX isa.c */
66 if (ia->ia_iosize != 0)
67 iosize = ia->ia_iosize;
68 #endif
69 if (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ)
70 irq = ia->ia_irq[0].ir_irq;
71
72 #if 0
73 /* If values are hardwired to something that they can't be, punt. */
74 if (iobase != IO_KBD || iosize != IO_KBDSIZE ||
75 ia->ia_maddr != MADDRUNK || ia->ia_msize != 0 ||
76 ia->ia_irq != 1 || ia->ia_drq != DRQUNK)
77 return 0;
78 #endif
79
80 if (pccons_isa_conf == NULL)
81 return 0;
82
83 if (!opms_common_match(ia->ia_iot, pccons_isa_conf))
84 return 0;
85
86 ia->ia_nio = 1;
87 ia->ia_io[0].ir_addr = iobase;
88 ia->ia_io[0].ir_size = iosize;
89
90 ia->ia_nirq = 1;
91 ia->ia_irq[0].ir_irq = irq;
92
93 ia->ia_niomem = 0;
94 ia->ia_ndrq = 0;
95
96 return 1;
97 }
98
99 static void
opms_isa_attach(device_t parent,device_t self,void * aux)100 opms_isa_attach(device_t parent, device_t self, void *aux)
101 {
102 struct opms_softc *sc = device_private(self);
103 struct isa_attach_args *ia = aux;
104
105 sc->sc_dev = self;
106
107 aprint_normal("\n");
108
109 isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_TTY,
110 pcintr, sc);
111 opms_common_attach(sc, ia->ia_iot, pccons_isa_conf);
112 }
113