Annotation of sys/arch/aviion/dev/dart_syscon.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: dart_syscon.c,v 1.1.1.1 2006/05/09 18:13:37 miod Exp $ */
2: /*
3: * Copyright (c) 2006, Miodrag Vallat
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: *
14: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
18: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
22: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
23: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24: * POSSIBILITY OF SUCH DAMAGE.
25: */
26:
27: #include <sys/param.h>
28: #include <sys/systm.h>
29: #include <sys/device.h>
30:
31: #include <machine/autoconf.h>
32: #include <machine/cpu.h>
33:
34: #include <machine/av400.h>
35:
36: #include <aviion/dev/sysconreg.h>
37: #include <aviion/dev/dartvar.h>
38:
39: int dart_syscon_match(struct device *parent, void *self, void *aux);
40: void dart_syscon_attach(struct device *parent, struct device *self, void *aux);
41:
42: struct cfattach dart_syscon_ca = {
43: sizeof(struct dartsoftc), dart_syscon_match, dart_syscon_attach
44: };
45:
46: int
47: dart_syscon_match(struct device *parent, void *cf, void *aux)
48: {
49: struct confargs *ca = aux;
50: bus_space_handle_t ioh;
51: int rc;
52:
53: /*
54: * We do not accept empty locators here...
55: */
56: if (ca->ca_paddr == (paddr_t)-1)
57: return (0);
58:
59: if (bus_space_map(ca->ca_iot, ca->ca_paddr, DART_SIZE, 0, &ioh) != 0)
60: return (0);
61: rc = badaddr((vaddr_t)bus_space_vaddr(ca->ca_iot, ioh), 4);
62: bus_space_unmap(ca->ca_iot, ca->ca_paddr, DART_SIZE);
63:
64: return (rc == 0);
65: }
66:
67: void
68: dart_syscon_attach(struct device *parent, struct device *self, void *aux)
69: {
70: struct dartsoftc *sc = (struct dartsoftc *)self;
71: struct confargs *ca = aux;
72: bus_space_handle_t ioh;
73: u_int vec;
74:
75: if (ca->ca_ipl < 0)
76: ca->ca_ipl = IPL_TTY;
77:
78: sc->sc_iot = ca->ca_iot;
79: if (bus_space_map(sc->sc_iot, ca->ca_paddr, DART_SIZE, 0, &ioh) != 0) {
80: printf(": can't map registers!\n");
81: return;
82: }
83: sc->sc_ioh = ioh;
84:
85: if (ca->ca_paddr == DART_BASE) {
86: vec = SYSCV_SCC;
87: sc->sc_console = 1; /* XXX for now */
88: printf(": console");
89: } else {
90: vec = SYSCV_SCC2;
91: sc->sc_console = 0;
92: }
93:
94: /* enable interrupts */
95: sc->sc_ih.ih_fn = dartintr;
96: sc->sc_ih.ih_arg = sc;
97: sc->sc_ih.ih_wantframe = 0;
98: sc->sc_ih.ih_ipl = ca->ca_ipl;
99:
100: sysconintr_establish(vec, &sc->sc_ih, self->dv_xname);
101:
102: dart_common_attach(sc);
103: }
CVSweb