Annotation of sys/arch/hppa/gsc/com_gsc.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: com_gsc.c,v 1.21 2007/07/15 19:25:49 kettenis 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/tty.h>
33:
34: #include <machine/bus.h>
35: #include <machine/intr.h>
36: #include <machine/iomod.h>
37: #include <machine/autoconf.h>
38:
39: #include <dev/ic/comreg.h>
40: #include <dev/ic/comvar.h>
41:
42: #include <hppa/dev/cpudevs.h>
43: #include <hppa/gsc/gscbusvar.h>
44:
45: #define COM_GSC_FREQ 7372800
46:
47: struct com_gsc_regs {
48: u_int8_t reset;
49: };
50:
51: int com_gsc_probe(struct device *, void *, void *);
52: void com_gsc_attach(struct device *, struct device *, void *);
53:
54: struct cfattach com_gsc_ca = {
55: sizeof(struct com_softc), com_gsc_probe, com_gsc_attach
56: };
57:
58: int
59: com_gsc_probe(parent, match, aux)
60: struct device *parent;
61: void *match, *aux;
62: {
63: struct gsc_attach_args *ga = aux;
64:
65: if (ga->ga_type.iodc_type != HPPA_TYPE_FIO ||
66: (ga->ga_type.iodc_sv_model != HPPA_FIO_GRS232 &&
67: ga->ga_type.iodc_sv_model != HPPA_FIO_RS232 &&
68: ga->ga_type.iodc_sv_model != HPPA_FIO_GRJ16))
69: return (0);
70:
71: return (1);
72: /* HOZER comprobe1(ga->ga_iot, ga->ga_hpa + IOMOD_DEVOFFSET); */
73: }
74:
75: void
76: com_gsc_attach(parent, self, aux)
77: struct device *parent, *self;
78: void *aux;
79: {
80: struct com_softc *sc = (void *)self;
81: struct gsc_attach_args *ga = aux;
82:
83: sc->sc_iot = ga->ga_iot;
84: sc->sc_iobase = (bus_addr_t)ga->ga_hpa;
85: if (ga->ga_type.iodc_sv_model != HPPA_FIO_GRJ16)
86: sc->sc_iobase += IOMOD_DEVOFFSET;
87:
88: if (bus_space_map(sc->sc_iot, sc->sc_iobase, COM_NPORTS,
89: 0, &sc->sc_ioh)) {
90: printf(": cannot map io space\n");
91: return;
92: }
93:
94: if (PAGE0->mem_cons.pz_class == PCL_DUPLEX &&
95: PAGE0->mem_cons.pz_hpa == ga->ga_hpa) {
96: bus_space_unmap(sc->sc_iot, sc->sc_ioh, COM_NPORTS);
97: comcnattach(sc->sc_iot, sc->sc_iobase, comdefaultrate,
98: COM_GSC_FREQ, comconscflag);
99: }
100:
101: sc->sc_frequency = COM_GSC_FREQ;
102: com_attach_subr(sc);
103:
104: sc->sc_ih = gsc_intr_establish((struct gsc_softc *)parent,
105: ga->ga_irq, IPL_TTY, comintr, sc, sc->sc_dev.dv_xname);
106: }
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