Line data Source code
1 : /* $OpenBSD: ehci_cardbus.c,v 1.22 2015/11/11 02:29:14 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/kernel.h>
37 : #include <sys/rwlock.h>
38 : #include <sys/device.h>
39 :
40 : #include <machine/bus.h>
41 :
42 : #include <dev/cardbus/cardbusvar.h>
43 :
44 : #include <dev/usb/usb.h>
45 : #include <dev/usb/usbdi.h>
46 : #include <dev/usb/usbdivar.h>
47 : #include <dev/usb/usb_mem.h>
48 :
49 : #include <dev/usb/ehcireg.h>
50 : #include <dev/usb/ehcivar.h>
51 :
52 : int ehci_cardbus_match(struct device *, void *, void *);
53 : void ehci_cardbus_attach(struct device *, struct device *, void *);
54 : int ehci_cardbus_detach(struct device *, int);
55 :
56 : struct ehci_cardbus_softc {
57 : struct ehci_softc sc;
58 : cardbus_chipset_tag_t sc_cc;
59 : cardbus_function_tag_t sc_cf;
60 : cardbus_devfunc_t sc_ct;
61 : void *sc_ih; /* interrupt vectoring */
62 : };
63 :
64 : struct cfattach ehci_cardbus_ca = {
65 : sizeof(struct ehci_cardbus_softc), ehci_cardbus_match,
66 : ehci_cardbus_attach, ehci_cardbus_detach, ehci_activate
67 : };
68 :
69 : #define CARDBUS_CBMEM PCI_CBMEM
70 : #define cardbus_findvendor pci_findvendor
71 :
72 : int
73 0 : ehci_cardbus_match(struct device *parent, void *match, void *aux)
74 : {
75 0 : struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux;
76 :
77 0 : if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SERIALBUS &&
78 0 : PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SERIALBUS_USB &&
79 0 : PCI_INTERFACE(ca->ca_class) == PCI_INTERFACE_EHCI)
80 0 : return (1);
81 :
82 0 : return (0);
83 0 : }
84 :
85 : void
86 0 : ehci_cardbus_attach(struct device *parent, struct device *self, void *aux)
87 : {
88 0 : struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self;
89 0 : struct cardbus_attach_args *ca = aux;
90 0 : cardbus_devfunc_t ct = ca->ca_ct;
91 0 : cardbus_chipset_tag_t cc = ct->ct_cc;
92 0 : pci_chipset_tag_t pc = ca->ca_pc;
93 0 : cardbus_function_tag_t cf = ct->ct_cf;
94 : pcireg_t csr;
95 : usbd_status r;
96 : const char *vendor;
97 0 : const char *devname = sc->sc.sc_bus.bdev.dv_xname;
98 :
99 : /* Map I/O registers */
100 0 : if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, PCI_MAPREG_TYPE_MEM, 0,
101 : &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
102 0 : printf(": can't map mem space\n");
103 0 : return;
104 : }
105 :
106 0 : sc->sc_cc = cc;
107 0 : sc->sc_cf = cf;
108 0 : sc->sc_ct = ct;
109 0 : sc->sc.sc_bus.dmatag = ca->ca_dmat;
110 :
111 0 : (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
112 0 : (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
113 :
114 : /* Enable the device. */
115 0 : csr = pci_conf_read(pc, ca->ca_tag,
116 : PCI_COMMAND_STATUS_REG);
117 0 : pci_conf_write(pc, ca->ca_tag, PCI_COMMAND_STATUS_REG,
118 0 : csr | PCI_COMMAND_MASTER_ENABLE
119 0 : | PCI_COMMAND_MEM_ENABLE);
120 :
121 : /* Disable interrupts, so we don't get any spurious ones. */
122 0 : sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH);
123 0 : EOWRITE2(&sc->sc, EHCI_USBINTR, 0);
124 :
125 0 : sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline,
126 0 : IPL_USB | IPL_MPSAFE, ehci_intr, sc, devname);
127 0 : if (sc->sc_ih == NULL) {
128 0 : printf(": unable to establish interrupt\n");
129 0 : return;
130 : }
131 0 : printf(": irq %d\n", ca->ca_intrline);
132 :
133 : /* Figure out vendor for root hub descriptor. */
134 0 : vendor = cardbus_findvendor(ca->ca_id);
135 0 : sc->sc.sc_id_vendor = PCI_VENDOR(ca->ca_id);
136 0 : if (vendor)
137 0 : strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor));
138 : else
139 0 : snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor),
140 0 : "vendor 0x%04x", PCI_VENDOR(ca->ca_id));
141 :
142 0 : r = ehci_init(&sc->sc);
143 0 : if (r != USBD_NORMAL_COMPLETION) {
144 0 : printf("%s: init failed, error=%d\n", devname, r);
145 :
146 : /* Avoid spurious interrupts. */
147 0 : cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
148 0 : sc->sc_ih = NULL;
149 :
150 0 : return;
151 : }
152 :
153 : /* Attach usb device. */
154 0 : config_found(self, &sc->sc.sc_bus, usbctlprint);
155 0 : }
156 :
157 : int
158 0 : ehci_cardbus_detach(struct device *self, int flags)
159 : {
160 0 : struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self;
161 0 : struct cardbus_devfunc *ct = sc->sc_ct;
162 : int rv;
163 :
164 0 : rv = ehci_detach(self, flags);
165 0 : if (rv)
166 0 : return (rv);
167 0 : if (sc->sc_ih != NULL) {
168 0 : cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
169 0 : sc->sc_ih = NULL;
170 0 : }
171 0 : if (sc->sc.sc_size) {
172 0 : Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot,
173 : sc->sc.ioh, sc->sc.sc_size);
174 0 : sc->sc.sc_size = 0;
175 0 : }
176 0 : return (0);
177 0 : }
|
