ohci_arbus.c revision 1.5 
1/*	$NetBSD: ohci_arbus.c,v 1.5 2021/08/07 16:18:59 thorpej Exp $	*/
2
3/*-
4 * Copyright (c) 1998, 1999, 2000, 2002, 2003 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Herb Peyerl of Middle Digital Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include "locators.h"
33
34#include <sys/cdefs.h>
35__KERNEL_RCSID(0, "$NetBSD: ohci_arbus.c,v 1.5 2021/08/07 16:18:59 thorpej Exp $");
36
37#include <sys/param.h>
38#include <sys/systm.h>
39#include <sys/device.h>
40#include <sys/bus.h>
41
42#include <dev/usb/usb.h>
43#include <dev/usb/usbdi.h>
44#include <dev/usb/usbdivar.h>
45#include <dev/usb/usb_mem.h>
46
47#include <dev/usb/ohcireg.h>
48#include <dev/usb/ohcivar.h>
49
50#include <mips/locore.h>
51
52#include <mips/atheros/include/arbusvar.h>
53
54static int	ohci_arbus_match(device_t, cfdata_t, void *);
55static void	ohci_arbus_attach(device_t, device_t, void *);
56
57CFATTACH_DECL_NEW(ohci_arbus, sizeof (ohci_softc_t),
58    ohci_arbus_match, ohci_arbus_attach, NULL, NULL);
59
60int
61ohci_arbus_match(device_t parent, cfdata_t cf, void *aux)
62{
63	struct arbus_attach_args *aa = aux;
64	bus_space_handle_t bsh;
65
66	if (strcmp(aa->aa_name, cf->cf_name))
67		return 0;
68
69	if (bus_space_map(aa->aa_bst, aa->aa_addr, aa->aa_size, 0, &bsh) != 0)
70		return 0;
71
72	return 0; /* XXX */
73
74	if (badaddr((void *)bsh, 4) == -1) {
75		bus_space_unmap(aa->aa_bst, bsh, aa->aa_size);
76		return 0;
77	}
78
79	bus_space_unmap(aa->aa_bst, bsh, aa->aa_size);
80	return 1;
81}
82
83void
84ohci_arbus_attach(device_t parent, device_t self, void *aux)
85{
86	ohci_softc_t * const sc = device_private(self);
87	struct arbus_attach_args * const aa = aux;
88	void *ih = NULL;
89
90	sc->sc_dev = self;
91	sc->iot = aa->aa_bst;
92	sc->sc_size = aa->aa_size;
93	sc->sc_bus.ub_dmatag = aa->aa_dmat;
94	sc->sc_bus.ub_hcpriv = sc;
95
96	if (bus_space_map(sc->iot, aa->aa_addr, sc->sc_size, 0, &sc->ioh)) {
97		aprint_error_dev(self, "unable to map registers\n");
98		return;
99	}
100
101	/* Disable OHCI interrupts */
102	bus_space_write_4(sc->iot, sc->ioh, OHCI_INTERRUPT_DISABLE,
103	    OHCI_ALL_INTRS);
104
105	/* establish interrupt */
106	ih = arbus_intr_establish(aa->aa_cirq, aa->aa_mirq, ohci_intr, sc);
107	if (ih == NULL)
108		panic("%s: couldn't establish interrupt", device_xname(self));
109
110	/* we don't handle endianess in bus space */
111	sc->sc_endian = OHCI_LITTLE_ENDIAN;
112
113	int err = ohci_init(sc);
114	if (err) {
115		aprint_error_dev(self, "init failed, error=%d\n", err);
116		if (ih != NULL)
117			arbus_intr_disestablish(ih);
118		return;
119	}
120
121#if 0
122	if (psc->sc_ohci_devs[0] == NULL) {
123		psc->sc_ohci_devs[0] = self;
124	} else if (psc->sc_ohci_devs[1] == NULL) {
125		psc->sc_ohci_devs[1] = self;
126	} else {
127		panic("%s: too many ohci devices", __func__);
128	}
129#endif
130
131	/* Attach USB device */
132	sc->sc_child = config_found(self, &sc->sc_bus, usbctlprint, CFARGS_NONE);
133}
134