Annotation of sys/arch/armish/dev/com_obio.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: com_obio.c,v 1.4 2006/06/16 01:31:35 drahn Exp $ */
2: /* $NetBSD: com_obio.c,v 1.9 2005/12/11 12:17:09 christos Exp $ */
3:
4: /*-
5: * Copyright (c) 2001 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Matt Thomas <matt@3am-software.com>.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the NetBSD
22: * Foundation, Inc. and its contributors.
23: * 4. Neither the name of The NetBSD Foundation nor the names of its
24: * contributors may be used to endorse or promote products derived
25: * from this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: */
39:
40: #include <sys/param.h>
41: #include <sys/systm.h>
42: #include <sys/device.h>
43: #include <sys/termios.h>
44:
45: #include <machine/bus.h>
46:
47: #include <arm/xscale/i80321var.h>
48: #include <armish/dev/obiovar.h>
49:
50: #include <dev/ic/comreg.h>
51: #include <dev/ic/comvar.h>
52:
53: struct com_obio_softc {
54: struct com_softc sc_com;
55:
56: void *sc_ih;
57: };
58:
59: int com_obio_match(struct device *, void *, void *);
60: void com_obio_attach(struct device *, struct device *, void *);
61:
62: struct cfattach com_obio_ca = {
63: sizeof(struct com_obio_softc), com_obio_match, com_obio_attach
64: };
65:
66: struct cfdriver com_obio_cd = {
67: NULL, "com_obio", DV_DULL
68: };
69:
70: int com_irq_override = -1;
71:
72: int
73: com_obio_match(struct device *parent, void *cf, void *aux)
74: {
75: struct obio_attach_args *oba = aux;
76:
77: /* if the irq does not match, do not attach */
78: if (com_irq_override != -1)
79: oba->oba_irq = com_irq_override;
80:
81: /* We take it on faith that the device is there. */
82: return (1);
83: }
84:
85:
86: void
87: com_obio_attach(struct device *parent, struct device *self, void *aux)
88: {
89: struct obio_attach_args *oba = aux;
90: struct com_obio_softc *osc = (void *) self;
91: struct com_softc *sc = &osc->sc_com;
92: int error;
93:
94: sc->sc_iot = oba->oba_st;
95: sc->sc_iobase = oba->oba_addr;
96: sc->sc_frequency = COM_FREQ;
97: /* sc->sc_hwflags = COM_HW_NO_TXPRELOAD; */
98: sc->sc_hwflags = 0;
99: error = bus_space_map(sc->sc_iot, oba->oba_addr, 8, 0, &sc->sc_ioh);
100:
101: if (error) {
102: printf(": failed to map registers: %d\n", error);
103: return;
104: }
105:
106: com_attach_subr(sc);
107: osc->sc_ih = i80321_intr_establish(oba->oba_irq, IPL_TTY,
108: comintr, sc, sc->sc_dev.dv_xname);
109: if (osc->sc_ih == NULL)
110: printf("%s: unable to establish interrupt at CPLD irq %d\n",
111: sc->sc_dev.dv_xname, oba->oba_irq);
112: }
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