Line data Source code
1 : /* $OpenBSD: ohci_cardbus.c,v 1.21 2015/03/14 03:38:47 jsg Exp $ */
2 : /* $NetBSD: ohci_cardbus.c,v 1.19 2004/08/02 19:14:28 mycroft 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 : /*
35 : * USB Open Host Controller driver.
36 : *
37 : * OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf
38 : * USB spec: http://www.teleport.com/cgi-bin/mailmerge.cgi/~usb/cgiform.tpl
39 : */
40 :
41 :
42 : #include <sys/param.h>
43 : #include <sys/systm.h>
44 : #include <sys/kernel.h>
45 : #include <sys/device.h>
46 :
47 : #include <machine/bus.h>
48 :
49 : #include <dev/cardbus/cardbusvar.h>
50 :
51 : #include <dev/usb/usb.h>
52 : #include <dev/usb/usbdi.h>
53 : #include <dev/usb/usbdivar.h>
54 : #include <dev/usb/usb_mem.h>
55 :
56 : #include <dev/usb/ohcireg.h>
57 : #include <dev/usb/ohcivar.h>
58 :
59 : int ohci_cardbus_match(struct device *, void *, void *);
60 : void ohci_cardbus_attach(struct device *, struct device *, void *);
61 : int ohci_cardbus_detach(struct device *, int);
62 :
63 : struct ohci_cardbus_softc {
64 : struct ohci_softc sc;
65 : cardbus_chipset_tag_t sc_cc;
66 : cardbus_function_tag_t sc_cf;
67 : cardbus_devfunc_t sc_ct;
68 : void *sc_ih; /* interrupt vectoring */
69 : };
70 :
71 : struct cfattach ohci_cardbus_ca = {
72 : sizeof(struct ohci_cardbus_softc), ohci_cardbus_match,
73 : ohci_cardbus_attach, ohci_cardbus_detach, ohci_activate
74 : };
75 :
76 : #define CARDBUS_CBMEM PCI_CBMEM
77 : #define cardbus_findvendor pci_findvendor
78 :
79 : int
80 0 : ohci_cardbus_match(struct device *parent, void *match, void *aux)
81 : {
82 0 : struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux;
83 :
84 0 : if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SERIALBUS &&
85 0 : PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SERIALBUS_USB &&
86 0 : PCI_INTERFACE(ca->ca_class) == PCI_INTERFACE_OHCI)
87 0 : return (1);
88 :
89 0 : return (0);
90 0 : }
91 :
92 : void
93 0 : ohci_cardbus_attach(struct device *parent, struct device *self, void *aux)
94 : {
95 0 : struct ohci_cardbus_softc *sc = (struct ohci_cardbus_softc *)self;
96 0 : struct cardbus_attach_args *ca = aux;
97 0 : cardbus_devfunc_t ct = ca->ca_ct;
98 0 : cardbus_chipset_tag_t cc = ct->ct_cc;
99 0 : pci_chipset_tag_t pc = ca->ca_pc;
100 0 : cardbus_function_tag_t cf = ct->ct_cf;
101 : pcireg_t csr;
102 : usbd_status r;
103 : const char *vendor;
104 0 : const char *devname = sc->sc.sc_bus.bdev.dv_xname;
105 :
106 : /* Map I/O registers */
107 0 : if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, PCI_MAPREG_TYPE_MEM, 0,
108 : &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
109 0 : printf(": can't map mem space\n");
110 0 : return;
111 : }
112 :
113 : /* Disable interrupts, so we don't get any spurious ones. */
114 0 : bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
115 : OHCI_MIE);
116 :
117 0 : sc->sc_cc = cc;
118 0 : sc->sc_cf = cf;
119 0 : sc->sc_ct = ct;
120 0 : sc->sc.sc_bus.dmatag = ca->ca_dmat;
121 :
122 0 : (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
123 0 : (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
124 :
125 : /* Enable the device. */
126 0 : csr = pci_conf_read(pc, ca->ca_tag,
127 : PCI_COMMAND_STATUS_REG);
128 0 : pci_conf_write(pc, ca->ca_tag, PCI_COMMAND_STATUS_REG,
129 0 : csr | PCI_COMMAND_MASTER_ENABLE
130 0 : | PCI_COMMAND_MEM_ENABLE);
131 :
132 0 : sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline,
133 0 : IPL_USB, ohci_intr, sc, devname);
134 0 : if (sc->sc_ih == NULL) {
135 0 : printf(": couldn't establish interrupt\n");
136 0 : return;
137 : }
138 0 : printf(": irq %d", ca->ca_intrline);
139 :
140 : /* Figure out vendor for root hub descriptor. */
141 0 : vendor = cardbus_findvendor(ca->ca_id);
142 0 : sc->sc.sc_id_vendor = PCI_VENDOR(ca->ca_id);
143 0 : if (vendor)
144 0 : strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor));
145 : else
146 0 : snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor),
147 0 : "vendor 0x%04x", PCI_VENDOR(ca->ca_id));
148 :
149 : /* Display revision and perform legacy emulation handover. */
150 0 : if (ohci_checkrev(&sc->sc) != USBD_NORMAL_COMPLETION ||
151 0 : ohci_handover(&sc->sc) != USBD_NORMAL_COMPLETION) {
152 0 : cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
153 0 : sc->sc_ih = 0;
154 0 : return;
155 : }
156 :
157 0 : r = ohci_init(&sc->sc);
158 0 : if (r != USBD_NORMAL_COMPLETION) {
159 0 : printf("%s: init failed, error=%d\n", devname, r);
160 :
161 : /* Avoid spurious interrupts. */
162 0 : cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
163 0 : sc->sc_ih = 0;
164 :
165 0 : return;
166 : }
167 :
168 : /* Attach usb device. */
169 0 : config_found(self, &sc->sc.sc_bus, usbctlprint);
170 0 : }
171 :
172 : int
173 0 : ohci_cardbus_detach(struct device *self, int flags)
174 : {
175 0 : struct ohci_cardbus_softc *sc = (struct ohci_cardbus_softc *)self;
176 0 : struct cardbus_devfunc *ct = sc->sc_ct;
177 : int rv;
178 :
179 0 : rv = ohci_detach(self, flags);
180 0 : if (rv)
181 0 : return (rv);
182 :
183 0 : if (sc->sc_ih != NULL) {
184 0 : cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
185 0 : sc->sc_ih = NULL;
186 0 : }
187 0 : if (sc->sc.sc_size) {
188 0 : Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot,
189 : sc->sc.ioh, sc->sc.sc_size);
190 0 : sc->sc.sc_size = 0;
191 0 : }
192 :
193 0 : return (0);
194 0 : }
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