Annotation of sys/arch/hppa/dev/wax.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: wax.c,v 1.10 2004/11/08 20:53:25 miod Exp $ */
2:
3: /*
4: * Copyright (c) 1998-2003 Michael Shalayeff
5: * 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: *
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19: * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
20: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22: * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
25: * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26: * THE POSSIBILITY OF SUCH DAMAGE.
27: */
28:
29: #include <sys/param.h>
30: #include <sys/systm.h>
31: #include <sys/device.h>
32: #include <sys/reboot.h>
33:
34: #include <machine/iomod.h>
35: #include <machine/autoconf.h>
36:
37: #include <hppa/dev/cpudevs.h>
38:
39: #include <hppa/gsc/gscbusvar.h>
40:
41: #define WAX_IOMASK 0xfff00000
42:
43: struct wax_regs {
44: u_int32_t wax_irr; /* int request register */
45: u_int32_t wax_imr; /* int mask register */
46: u_int32_t wax_ipr; /* int pending register */
47: u_int32_t wax_icr; /* int command? register */
48: u_int32_t wax_iar; /* int acquire? register */
49: };
50:
51: struct wax_softc {
52: struct device sc_dv;
53: struct gscbus_ic sc_ic;
54:
55: struct wax_regs volatile *sc_regs;
56: };
57:
58: int waxmatch(struct device *, void *, void *);
59: void waxattach(struct device *, struct device *, void *);
60: void wax_gsc_attach(struct device *);
61:
62: struct cfattach wax_ca = {
63: sizeof(struct wax_softc), waxmatch, waxattach
64: };
65:
66: struct cfdriver wax_cd = {
67: NULL, "wax", DV_DULL
68: };
69:
70: int
71: waxmatch(parent, cfdata, aux)
72: struct device *parent;
73: void *cfdata;
74: void *aux;
75: {
76: struct confargs *ca = aux;
77: struct cfdata *cf = cfdata;
78:
79: /* there will be only one */
80: if (cf->cf_unit > 0 ||
81: ca->ca_type.iodc_type != HPPA_TYPE_BHA ||
82: ca->ca_type.iodc_sv_model != HPPA_BHA_WAX)
83: return 0;
84:
85: return 1;
86: }
87:
88: void
89: waxattach(parent, self, aux)
90: struct device *parent;
91: struct device *self;
92: void *aux;
93: {
94: struct wax_softc *sc = (struct wax_softc *)self;
95: struct confargs *ca = aux;
96: struct gsc_attach_args ga;
97: bus_space_handle_t ioh;
98: int s, in;
99:
100: if (bus_space_map(ca->ca_iot, ca->ca_hpa, IOMOD_HPASIZE, 0, &ioh)) {
101: printf(": can't map IO space\n");
102: return;
103: }
104:
105: sc->sc_regs = (struct wax_regs *)ca->ca_hpa;
106:
107: printf("\n");
108:
109: /* interrupts guts */
110: s = splhigh();
111: sc->sc_regs->wax_iar = cpu_gethpa(0) | (31 - ca->ca_irq);
112: sc->sc_regs->wax_icr = 0;
113: sc->sc_regs->wax_imr = ~0U;
114: in = sc->sc_regs->wax_irr;
115: sc->sc_regs->wax_imr = 0;
116: splx(s);
117:
118: sc->sc_ic.gsc_type = gsc_wax;
119: sc->sc_ic.gsc_dv = sc;
120: sc->sc_ic.gsc_base = sc->sc_regs;
121:
122: ga.ga_ca = *ca; /* clone from us */
123: if (!strcmp(parent->dv_xname, "mainbus0")) {
124: ga.ga_dp.dp_bc[0] = ga.ga_dp.dp_bc[1];
125: ga.ga_dp.dp_bc[1] = ga.ga_dp.dp_bc[2];
126: ga.ga_dp.dp_bc[2] = ga.ga_dp.dp_bc[3];
127: ga.ga_dp.dp_bc[3] = ga.ga_dp.dp_bc[4];
128: ga.ga_dp.dp_bc[4] = ga.ga_dp.dp_bc[5];
129: ga.ga_dp.dp_bc[5] = ga.ga_dp.dp_mod;
130: ga.ga_dp.dp_mod = 0;
131: }
132:
133: ga.ga_name = "gsc";
134: ga.ga_hpamask = WAX_IOMASK;
135: ga.ga_ic = &sc->sc_ic;
136: config_found(self, &ga, gscprint);
137: }
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