1 /* $OpenBSD: ehci_cardbus.c,v 1.24 2024/05/24 06:26:47 jsg Exp $ */
2 /* $NetBSD: ehci_cardbus.c,v 1.6.6.3 2004/09/21 13:27:25 skrll Exp $ */
3
4 /*
5 * Copyright (c) 1998 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Lennart Augustsson (lennart@augustsson.net) at
10 * Carlstedt Research & Technology.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/rwlock.h>
37 #include <sys/device.h>
38
39 #include <machine/bus.h>
40
41 #include <dev/cardbus/cardbusvar.h>
42
43 #include <dev/usb/usb.h>
44 #include <dev/usb/usbdi.h>
45 #include <dev/usb/usbdivar.h>
46
47 #include <dev/usb/ehcireg.h>
48 #include <dev/usb/ehcivar.h>
49
50 int ehci_cardbus_match(struct device *, void *, void *);
51 void ehci_cardbus_attach(struct device *, struct device *, void *);
52 int ehci_cardbus_detach(struct device *, int);
53
54 struct ehci_cardbus_softc {
55 struct ehci_softc sc;
56 cardbus_chipset_tag_t sc_cc;
57 cardbus_function_tag_t sc_cf;
58 cardbus_devfunc_t sc_ct;
59 void *sc_ih; /* interrupt vectoring */
60 };
61
62 const struct cfattach ehci_cardbus_ca = {
63 sizeof(struct ehci_cardbus_softc), ehci_cardbus_match,
64 ehci_cardbus_attach, ehci_cardbus_detach, ehci_activate
65 };
66
67 #define CARDBUS_CBMEM PCI_CBMEM
68 #define cardbus_findvendor pci_findvendor
69
70 int
ehci_cardbus_match(struct device * parent,void * match,void * aux)71 ehci_cardbus_match(struct device *parent, void *match, void *aux)
72 {
73 struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux;
74
75 if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SERIALBUS &&
76 PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SERIALBUS_USB &&
77 PCI_INTERFACE(ca->ca_class) == PCI_INTERFACE_EHCI)
78 return (1);
79
80 return (0);
81 }
82
83 void
ehci_cardbus_attach(struct device * parent,struct device * self,void * aux)84 ehci_cardbus_attach(struct device *parent, struct device *self, void *aux)
85 {
86 struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self;
87 struct cardbus_attach_args *ca = aux;
88 cardbus_devfunc_t ct = ca->ca_ct;
89 cardbus_chipset_tag_t cc = ct->ct_cc;
90 pci_chipset_tag_t pc = ca->ca_pc;
91 cardbus_function_tag_t cf = ct->ct_cf;
92 pcireg_t csr;
93 usbd_status r;
94 const char *vendor;
95 const char *devname = sc->sc.sc_bus.bdev.dv_xname;
96
97 /* Map I/O registers */
98 if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, PCI_MAPREG_TYPE_MEM, 0,
99 &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
100 printf(": can't map mem space\n");
101 return;
102 }
103
104 sc->sc_cc = cc;
105 sc->sc_cf = cf;
106 sc->sc_ct = ct;
107 sc->sc.sc_bus.dmatag = ca->ca_dmat;
108
109 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
110 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
111
112 /* Enable the device. */
113 csr = pci_conf_read(pc, ca->ca_tag,
114 PCI_COMMAND_STATUS_REG);
115 pci_conf_write(pc, ca->ca_tag, PCI_COMMAND_STATUS_REG,
116 csr | PCI_COMMAND_MASTER_ENABLE
117 | PCI_COMMAND_MEM_ENABLE);
118
119 /* Disable interrupts, so we don't get any spurious ones. */
120 sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH);
121 EOWRITE2(&sc->sc, EHCI_USBINTR, 0);
122
123 sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline,
124 IPL_USB | IPL_MPSAFE, ehci_intr, sc, devname);
125 if (sc->sc_ih == NULL) {
126 printf(": unable to establish interrupt\n");
127 return;
128 }
129 printf(": irq %d\n", ca->ca_intrline);
130
131 /* Figure out vendor for root hub descriptor. */
132 vendor = cardbus_findvendor(ca->ca_id);
133 sc->sc.sc_id_vendor = PCI_VENDOR(ca->ca_id);
134 if (vendor)
135 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor));
136 else
137 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor),
138 "vendor 0x%04x", PCI_VENDOR(ca->ca_id));
139
140 r = ehci_init(&sc->sc);
141 if (r != USBD_NORMAL_COMPLETION) {
142 printf("%s: init failed, error=%d\n", devname, r);
143
144 /* Avoid spurious interrupts. */
145 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
146 sc->sc_ih = NULL;
147
148 return;
149 }
150
151 /* Attach usb device. */
152 config_found(self, &sc->sc.sc_bus, usbctlprint);
153 }
154
155 int
ehci_cardbus_detach(struct device * self,int flags)156 ehci_cardbus_detach(struct device *self, int flags)
157 {
158 struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self;
159 struct cardbus_devfunc *ct = sc->sc_ct;
160 int rv;
161
162 rv = ehci_detach(self, flags);
163 if (rv)
164 return (rv);
165 if (sc->sc_ih != NULL) {
166 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
167 sc->sc_ih = NULL;
168 }
169 if (sc->sc.sc_size) {
170 Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot,
171 sc->sc.ioh, sc->sc.sc_size);
172 sc->sc.sc_size = 0;
173 }
174 return (0);
175 }
176