Line data Source code
1 : /* $OpenBSD: uhci_cardbus.c,v 1.15 2015/03/14 03:38:47 jsg Exp $ */
2 :
3 : /*
4 : * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 : * All rights reserved.
6 : *
7 : * This code is derived from software contributed to The NetBSD Foundation
8 : * by Lennart Augustsson (lennart@augustsson.net) at
9 : * Carlstedt Research & Technology.
10 : *
11 : * Redistribution and use in source and binary forms, with or without
12 : * modification, are permitted provided that the following conditions
13 : * are met:
14 : * 1. Redistributions of source code must retain the above copyright
15 : * notice, this list of conditions and the following disclaimer.
16 : * 2. Redistributions in binary form must reproduce the above copyright
17 : * notice, this list of conditions and the following disclaimer in the
18 : * documentation and/or other materials provided with the distribution.
19 : *
20 : * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 : * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 : * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 : * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 : * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 : * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 : * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 : * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 : * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 : * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 : * POSSIBILITY OF SUCH DAMAGE.
31 : */
32 :
33 : #include <sys/param.h>
34 : #include <sys/systm.h>
35 : #include <sys/kernel.h>
36 : #include <sys/device.h>
37 :
38 : #include <machine/bus.h>
39 :
40 : #include <dev/cardbus/cardbusvar.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/uhcireg.h>
48 : #include <dev/usb/uhcivar.h>
49 :
50 : int uhci_cardbus_match(struct device *, void *, void *);
51 : void uhci_cardbus_attach(struct device *, struct device *, void *);
52 : int uhci_cardbus_detach(struct device *, int);
53 :
54 : struct uhci_cardbus_softc {
55 : struct uhci_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 : struct cfattach uhci_cardbus_ca = {
63 : sizeof(struct uhci_cardbus_softc), uhci_cardbus_match,
64 : uhci_cardbus_attach, uhci_cardbus_detach, uhci_activate
65 : };
66 :
67 : #define cardbus_findvendor pci_findvendor
68 :
69 : int
70 0 : uhci_cardbus_match(struct device *parent, void *match, void *aux)
71 : {
72 0 : struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux;
73 :
74 0 : if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SERIALBUS &&
75 0 : PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SERIALBUS_USB &&
76 0 : PCI_INTERFACE(ca->ca_class) == PCI_INTERFACE_UHCI)
77 0 : return (1);
78 :
79 0 : return (0);
80 0 : }
81 :
82 : void
83 0 : uhci_cardbus_attach(struct device *parent, struct device *self, void *aux)
84 : {
85 0 : struct uhci_cardbus_softc *sc = (struct uhci_cardbus_softc *)self;
86 0 : struct cardbus_attach_args *ca = aux;
87 0 : cardbus_devfunc_t ct = ca->ca_ct;
88 0 : cardbus_chipset_tag_t cc = ct->ct_cc;
89 0 : pci_chipset_tag_t pc = ca->ca_pc;
90 0 : cardbus_function_tag_t cf = ct->ct_cf;
91 : pcireg_t csr;
92 : usbd_status r;
93 : const char *vendor;
94 0 : const char *devname = sc->sc.sc_bus.bdev.dv_xname;
95 :
96 : /* Map I/O registers */
97 0 : if (Cardbus_mapreg_map(ct, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
98 : &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
99 0 : printf(": can't map io space\n");
100 0 : return;
101 : }
102 :
103 : /* Disable interrupts, so we don't get any spurious ones. */
104 0 : bus_space_write_2(sc->sc.iot, sc->sc.ioh, UHCI_INTR, 0);
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_IO_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_IO_ENABLE);
120 :
121 0 : sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline,
122 0 : IPL_USB, uhci_intr, sc, devname);
123 0 : if (sc->sc_ih == NULL) {
124 0 : printf(": couldn't establish interrupt\n");
125 0 : return;
126 : }
127 0 : printf(": irq %d\n", ca->ca_intrline);
128 :
129 : /* Set LEGSUP register to its default value. */
130 0 : pci_conf_write(pc, ca->ca_tag, PCI_LEGSUP,
131 : PCI_LEGSUP_USBPIRQDEN);
132 :
133 0 : switch(pci_conf_read(pc, ca->ca_tag, PCI_USBREV) & PCI_USBREV_MASK) {
134 : case PCI_USBREV_PRE_1_0:
135 0 : sc->sc.sc_bus.usbrev = USBREV_PRE_1_0;
136 0 : break;
137 : case PCI_USBREV_1_0:
138 0 : sc->sc.sc_bus.usbrev = USBREV_1_0;
139 0 : break;
140 : case PCI_USBREV_1_1:
141 0 : sc->sc.sc_bus.usbrev = USBREV_1_1;
142 0 : break;
143 : default:
144 0 : sc->sc.sc_bus.usbrev = USBREV_UNKNOWN;
145 0 : break;
146 : }
147 :
148 0 : uhci_run(&sc->sc, 0); /* stop the controller */
149 : /* disable interrupts */
150 0 : bus_space_barrier(sc->sc.iot, sc->sc.ioh, 0, sc->sc.sc_size,
151 : BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE);
152 0 : bus_space_write_2(sc->sc.iot, sc->sc.ioh, UHCI_INTR, 0);
153 :
154 : /* Figure out vendor for root hub descriptor. */
155 0 : vendor = cardbus_findvendor(ca->ca_id);
156 0 : sc->sc.sc_id_vendor = PCI_VENDOR(ca->ca_id);
157 0 : if (vendor)
158 0 : strlcpy(sc->sc.sc_vendor, vendor, sizeof (sc->sc.sc_vendor));
159 : else
160 0 : snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor),
161 0 : "vendor 0x%04x", PCI_VENDOR(ca->ca_id));
162 :
163 0 : r = uhci_init(&sc->sc);
164 0 : if (r != USBD_NORMAL_COMPLETION) {
165 0 : printf("%s: init failed, error=%d\n", devname, r);
166 0 : bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size);
167 0 : return;
168 : }
169 :
170 : /* Attach usb device. */
171 0 : config_found(self, &sc->sc.sc_bus, usbctlprint);
172 0 : }
173 :
174 : int
175 0 : uhci_cardbus_detach(struct device *self, int flags)
176 : {
177 0 : struct uhci_cardbus_softc *sc = (struct uhci_cardbus_softc *)self;
178 0 : struct cardbus_devfunc *ct = sc->sc_ct;
179 : int rv;
180 :
181 0 : rv = uhci_detach(self, flags);
182 0 : if (rv)
183 0 : return (rv);
184 :
185 0 : if (sc->sc_ih != NULL) {
186 0 : cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
187 0 : sc->sc_ih = NULL;
188 0 : }
189 :
190 0 : if (sc->sc.sc_size) {
191 0 : Cardbus_mapreg_unmap(ct, PCI_CBIO, sc->sc.iot,
192 : sc->sc.ioh, sc->sc.sc_size);
193 0 : sc->sc.sc_size = 0;
194 0 : }
195 :
196 0 : return (0);
197 0 : }
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