1 /* $NetBSD: ohci_s3c24x0.c,v 1.12 2021/08/07 16:18:45 thorpej 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 *
22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 #include <sys/cdefs.h>
36 __KERNEL_RCSID(0, "$NetBSD: ohci_s3c24x0.c,v 1.12 2021/08/07 16:18:45 thorpej Exp $");
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/kernel.h>
41 #include <sys/device.h>
42 #include <sys/proc.h>
43 #include <sys/queue.h>
44
45 #include <sys/bus.h>
46
47 #include <arm/s3c2xx0/s3c24x0var.h>
48
49 #include <dev/usb/usb.h>
50 #include <dev/usb/usbdi.h>
51 #include <dev/usb/usbdivar.h>
52 #include <dev/usb/usb_mem.h>
53
54 #include <dev/usb/ohcireg.h>
55 #include <dev/usb/ohcivar.h>
56
57 int ohci_ssio_match(device_t, cfdata_t, void *);
58 void ohci_ssio_attach(device_t, device_t, void *);
59 int ohci_ssio_detach(device_t, int);
60
61 extern int ohcidebug;
62
63 struct ohci_ssio_softc {
64 ohci_softc_t sc;
65
66 void *sc_ih; /* interrupt vectoring */
67 };
68
69 CFATTACH_DECL_NEW(ohci_ssio, sizeof(struct ohci_ssio_softc),
70 ohci_ssio_match, ohci_ssio_attach, ohci_ssio_detach, ohci_activate);
71
72 int
ohci_ssio_match(device_t parent,cfdata_t match,void * aux)73 ohci_ssio_match(device_t parent, cfdata_t match, void *aux)
74 {
75 struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *)aux;
76 /* XXX: check some registers */
77
78 if (sa->sa_dmat == NULL) {
79 /* busdma tag is not initialized. */
80 return 0;
81 }
82
83 return 1;
84 }
85
86 void
ohci_ssio_attach(device_t parent,device_t self,void * aux)87 ohci_ssio_attach(device_t parent, device_t self, void *aux)
88 {
89 struct ohci_ssio_softc *sc = device_private(self);
90 struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *)aux;
91
92 aprint_normal("\n");
93 aprint_naive("\n");
94
95 sc->sc.sc_dev = self;
96 sc->sc.sc_bus.ub_hcpriv = sc;
97
98 sc->sc.iot = sa->sa_iot;
99 /*ohcidebug=15;*/
100
101 /* Map I/O registers */
102 if (bus_space_map(sc->sc.iot, sa->sa_addr, 0x5c, 0, &sc->sc.ioh)) {
103 aprint_error_dev(self, "can't map mem space\n");
104 return;
105 }
106
107 /* Disable interrupts, so we don't get any spurious ones. */
108 bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
109 OHCI_ALL_INTRS);
110
111 sc->sc.sc_bus.ub_dmatag = sa->sa_dmat;
112
113 /* Enable the device. */
114 /* XXX: provide clock to USB block */
115
116 /* establish the interrupt. */
117 sc->sc_ih = s3c24x0_intr_establish(sa->sa_intr, IPL_USB, IST_NONE, ohci_intr, sc);
118 if (sc->sc_ih == NULL) {
119 aprint_error_dev(self, "couldn't establish interrupt\n");
120 return;
121 }
122
123 int err = ohci_init(&sc->sc);
124 if (err) {
125 aprint_error_dev(self, "init failed, error=%d\n", err);
126 return;
127 }
128
129 /* Attach usb device. */
130 sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint,
131 CFARGS_NONE);
132 }
133
134 int
ohci_ssio_detach(device_t self,int flags)135 ohci_ssio_detach(device_t self, int flags)
136 {
137 return 0;
138 }
139