Annotation of sys/dev/cardbus/ehci_cardbus.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: ehci_cardbus.c,v 1.9 2007/05/20 00:52:26 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: * 3. All advertising materials mentioning features or use of this software
21: * must display the following acknowledgement:
22: * This product includes software developed by the NetBSD
23: * Foundation, Inc. and its contributors.
24: * 4. Neither the name of The NetBSD Foundation nor the names of its
25: * contributors may be used to endorse or promote products derived
26: * from this software without specific prior written permission.
27: *
28: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38: * POSSIBILITY OF SUCH DAMAGE.
39: */
40:
41: #include <sys/param.h>
42: #include <sys/systm.h>
43: #include <sys/kernel.h>
44: #include <sys/rwlock.h>
45: #include <sys/device.h>
46: #include <sys/proc.h>
47:
48: #include <machine/bus.h>
49:
50: #include <dev/cardbus/cardbusvar.h>
51: #include <dev/pci/pcidevs.h>
52:
53: #include <dev/usb/usb.h>
54: #include <dev/usb/usbdi.h>
55: #include <dev/usb/usbdivar.h>
56: #include <dev/usb/usb_mem.h>
57:
58: #include <dev/usb/ehcireg.h>
59: #include <dev/usb/ehcivar.h>
60:
61: #ifdef EHCI_DEBUG
62: #define DPRINTF(x) if (ehcidebug) printf x
63: extern int ehcidebug;
64: #else
65: #define DPRINTF(x)
66: #endif
67:
68:
69: int ehci_cardbus_match(struct device *, void *, void *);
70: void ehci_cardbus_attach(struct device *, struct device *, void *);
71: int ehci_cardbus_detach(struct device *, int);
72:
73: struct ehci_cardbus_softc {
74: ehci_softc_t sc;
75: cardbus_chipset_tag_t sc_cc;
76: cardbus_function_tag_t sc_cf;
77: cardbus_devfunc_t sc_ct;
78: void *sc_ih; /* interrupt vectoring */
79: };
80:
81: struct cfattach ehci_cardbus_ca = {
82: sizeof(struct ehci_cardbus_softc), ehci_cardbus_match,
83: ehci_cardbus_attach, ehci_cardbus_detach, ehci_activate
84: };
85:
86: #define CARDBUS_INTERFACE_EHCI PCI_INTERFACE_EHCI
87: #define CARDBUS_CBMEM PCI_CBMEM
88: #define cardbus_findvendor pci_findvendor
89: #define cardbus_devinfo pci_devinfo
90:
91: int
92: ehci_cardbus_match(struct device *parent, void *match, void *aux)
93: {
94: struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux;
95:
96: if (CARDBUS_CLASS(ca->ca_class) == CARDBUS_CLASS_SERIALBUS &&
97: CARDBUS_SUBCLASS(ca->ca_class) == CARDBUS_SUBCLASS_SERIALBUS_USB &&
98: CARDBUS_INTERFACE(ca->ca_class) == CARDBUS_INTERFACE_EHCI)
99: return (1);
100:
101: return (0);
102: }
103:
104: void
105: ehci_cardbus_attach(struct device *parent, struct device *self, void *aux)
106: {
107: struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self;
108: struct cardbus_attach_args *ca = aux;
109: cardbus_devfunc_t ct = ca->ca_ct;
110: cardbus_chipset_tag_t cc = ct->ct_cc;
111: cardbus_function_tag_t cf = ct->ct_cf;
112: cardbusreg_t csr;
113: char devinfo[256];
114: usbd_status r;
115: const char *vendor;
116: const char *devname = sc->sc.sc_bus.bdev.dv_xname;
117:
118: cardbus_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo));
119: printf(" %s", devinfo);
120:
121: /* Map I/O registers */
122: if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, CARDBUS_MAPREG_TYPE_MEM, 0,
123: &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
124: printf("%s: can't map mem space\n", devname);
125: return;
126: }
127:
128: sc->sc_cc = cc;
129: sc->sc_cf = cf;
130: sc->sc_ct = ct;
131: sc->sc.sc_bus.dmatag = ca->ca_dmat;
132:
133: (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
134: (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
135:
136: /* Enable the device. */
137: csr = cardbus_conf_read(cc, cf, ca->ca_tag,
138: CARDBUS_COMMAND_STATUS_REG);
139: cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG,
140: csr | CARDBUS_COMMAND_MASTER_ENABLE
141: | CARDBUS_COMMAND_MEM_ENABLE);
142:
143: /* Disable interrupts, so we don't get any spurious ones. */
144: sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH);
145: DPRINTF((": offs=%d", devname, sc->sc.sc_offs));
146: EOWRITE2(&sc->sc, EHCI_USBINTR, 0);
147:
148: sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline,
149: IPL_USB, ehci_intr, sc, devname);
150: if (sc->sc_ih == NULL) {
151: printf(": unable to establish interrupt\n");
152: return;
153: }
154: printf(": irq %d\n", ca->ca_intrline);
155:
156: /* Figure out vendor for root hub descriptor. */
157: vendor = cardbus_findvendor(ca->ca_id);
158: sc->sc.sc_id_vendor = CARDBUS_VENDOR(ca->ca_id);
159: if (vendor)
160: strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor));
161: else
162: snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor),
163: "vendor 0x%04x", CARDBUS_VENDOR(ca->ca_id));
164:
165: r = ehci_init(&sc->sc);
166: if (r != USBD_NORMAL_COMPLETION) {
167: printf("%s: init failed, error=%d\n", devname, r);
168:
169: /* Avoid spurious interrupts. */
170: cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
171: sc->sc_ih = NULL;
172:
173: return;
174: }
175:
176: sc->sc.sc_shutdownhook = shutdownhook_establish(ehci_shutdown, &sc->sc);
177:
178: /* Attach usb device. */
179: sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus,
180: usbctlprint);
181: }
182:
183: int
184: ehci_cardbus_detach(struct device *self, int flags)
185: {
186: struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self;
187: struct cardbus_devfunc *ct = sc->sc_ct;
188: int rv;
189:
190: rv = ehci_detach(&sc->sc, flags);
191: if (rv)
192: return (rv);
193: if (sc->sc_ih != NULL) {
194: cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
195: sc->sc_ih = NULL;
196: }
197: if (sc->sc.sc_size) {
198: Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot,
199: sc->sc.ioh, sc->sc.sc_size);
200: sc->sc.sc_size = 0;
201: }
202: return (0);
203: }
204:
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