ohci_s3c24x0.c revision 1.5 
1/*	$NetBSD: ohci_s3c24x0.c,v 1.5 2008/04/26 14:57:44 drochner Exp $ */
2
3/* derived from ohci_pci.c */
4
5/*
6 * Copyright (c) 1998 The NetBSD Foundation, Inc.
7 * All rights reserved.
8 *
9 * This code is derived from software contributed to The NetBSD Foundation
10 * by Lennart Augustsson (lennart@augustsson.net) at
11 * Carlstedt Research & Technology.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 *    must display the following acknowledgement:
23 *        This product includes software developed by the NetBSD
24 *        Foundation, Inc. and its contributors.
25 * 4. Neither the name of The NetBSD Foundation nor the names of its
26 *    contributors may be used to endorse or promote products derived
27 *    from this software without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
30 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
31 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
32 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
33 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
36 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
37 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39 * POSSIBILITY OF SUCH DAMAGE.
40 */
41
42#include <sys/cdefs.h>
43__KERNEL_RCSID(0, "$NetBSD: ohci_s3c24x0.c,v 1.5 2008/04/26 14:57:44 drochner Exp $");
44
45#include <sys/param.h>
46#include <sys/systm.h>
47#include <sys/kernel.h>
48#include <sys/device.h>
49#include <sys/proc.h>
50#include <sys/queue.h>
51
52#include <machine/bus.h>
53
54#include <arm/s3c2xx0/s3c24x0var.h>
55
56#include <dev/usb/usb.h>
57#include <dev/usb/usbdi.h>
58#include <dev/usb/usbdivar.h>
59#include <dev/usb/usb_mem.h>
60
61#include <dev/usb/ohcireg.h>
62#include <dev/usb/ohcivar.h>
63
64int	ohci_ssio_match(struct device *, struct cfdata *, void *);
65void	ohci_ssio_attach(struct device *, struct device *, void *);
66int	ohci_ssio_detach(device_ptr_t, int);
67
68extern	int ohcidebug;
69
70struct ohci_ssio_softc {
71	ohci_softc_t		sc;
72
73	void 			*sc_ih;		/* interrupt vectoring */
74};
75
76CFATTACH_DECL_NEW(ohci_ssio, sizeof(struct ohci_ssio_softc),
77    ohci_ssio_match, ohci_ssio_attach, ohci_ssio_detach, ohci_activate);
78
79int
80ohci_ssio_match(struct device *parent, struct cfdata *match, void *aux)
81{
82	struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *)aux;
83	/* XXX: check some registers */
84
85	if (sa->sa_dmat == NULL) {
86		/* busdma tag is not initialized. */
87		return 0;
88	}
89
90	return 1;
91}
92
93void
94ohci_ssio_attach(struct device *parent, struct device *self, void *aux)
95{
96	struct ohci_ssio_softc *sc = device_private(self);
97	struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *)aux;
98
99	usbd_status r;
100
101	aprint_normal("\n");
102
103	sc->sc.sc_dev = self;
104	sc->sc.sc_bus.hci_private = sc;
105
106	sc->sc.iot = sa->sa_iot;
107	/*ohcidebug=15;*/
108
109	/* Map I/O registers */
110	if (bus_space_map(sc->sc.iot, sa->sa_addr, 0x5c, 0, &sc->sc.ioh)) {
111		aprint_error_dev(self, "can't map mem space\n");
112		return;
113	}
114
115	/* Disable interrupts, so we don't get any spurious ones. */
116	bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
117			  OHCI_ALL_INTRS);
118
119	sc->sc.sc_bus.dmatag = sa->sa_dmat;
120
121	/* Enable the device. */
122	/* XXX: provide clock to USB block */
123
124	/* establish the interrupt. */
125	sc->sc_ih = s3c24x0_intr_establish(sa->sa_intr, IPL_USB, IST_NONE, ohci_intr, sc);
126	if (sc->sc_ih == NULL) {
127		aprint_error_dev(self, "couldn't establish interrupt\n");
128		return;
129	}
130
131	strlcpy(sc->sc.sc_vendor, "Samsung", sizeof sc->sc.sc_vendor);
132
133	r = ohci_init(&sc->sc);
134	if (r != USBD_NORMAL_COMPLETION) {
135		aprint_error_dev(self, "init failed, error=%d\n", r);
136		return;
137	}
138
139	/* Attach usb device. */
140	sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint);
141}
142
143int
144ohci_ssio_detach(device_ptr_t self, int flags)
145{
146	return (0);
147}
148