Annotation of sys/dev/cardbus/ohci_cardbus.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: ohci_cardbus.c,v 1.9 2007/03/22 05:53:36 pascoe 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: * 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: /*
42: * USB Open Host Controller driver.
43: *
44: * OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf
45: * USB spec: http://www.teleport.com/cgi-bin/mailmerge.cgi/~usb/cgiform.tpl
46: */
47:
48:
49: #include <sys/param.h>
50: #include <sys/systm.h>
51: #include <sys/kernel.h>
52: #include <sys/device.h>
53: #include <sys/proc.h>
54:
55: #include <machine/bus.h>
56:
57: #include <dev/cardbus/cardbusvar.h>
58: #include <dev/pci/pcidevs.h>
59:
60: #include <dev/usb/usb.h>
61: #include <dev/usb/usbdi.h>
62: #include <dev/usb/usbdivar.h>
63: #include <dev/usb/usb_mem.h>
64:
65: #include <dev/usb/ohcireg.h>
66: #include <dev/usb/ohcivar.h>
67:
68: int ohci_cardbus_match(struct device *, void *, void *);
69: void ohci_cardbus_attach(struct device *, struct device *, void *);
70: int ohci_cardbus_detach(struct device *, int);
71:
72: struct ohci_cardbus_softc {
73: ohci_softc_t sc;
74: cardbus_chipset_tag_t sc_cc;
75: cardbus_function_tag_t sc_cf;
76: cardbus_devfunc_t sc_ct;
77: void *sc_ih; /* interrupt vectoring */
78: };
79:
80: struct cfattach ohci_cardbus_ca = {
81: sizeof(struct ohci_cardbus_softc), ohci_cardbus_match,
82: ohci_cardbus_attach, ohci_cardbus_detach, ohci_activate
83: };
84:
85: #define CARDBUS_INTERFACE_OHCI PCI_INTERFACE_OHCI
86: #define CARDBUS_CBMEM PCI_CBMEM
87: #define cardbus_findvendor pci_findvendor
88: #define cardbus_devinfo pci_devinfo
89:
90: int
91: ohci_cardbus_match(struct device *parent, void *match, void *aux)
92: {
93: struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux;
94:
95: if (CARDBUS_CLASS(ca->ca_class) == CARDBUS_CLASS_SERIALBUS &&
96: CARDBUS_SUBCLASS(ca->ca_class) == CARDBUS_SUBCLASS_SERIALBUS_USB &&
97: CARDBUS_INTERFACE(ca->ca_class) == CARDBUS_INTERFACE_OHCI)
98: return (1);
99:
100: return (0);
101: }
102:
103: void
104: ohci_cardbus_attach(struct device *parent, struct device *self, void *aux)
105: {
106: struct ohci_cardbus_softc *sc = (struct ohci_cardbus_softc *)self;
107: struct cardbus_attach_args *ca = aux;
108: cardbus_devfunc_t ct = ca->ca_ct;
109: cardbus_chipset_tag_t cc = ct->ct_cc;
110: cardbus_function_tag_t cf = ct->ct_cf;
111: cardbusreg_t csr;
112: char devinfo[256];
113: usbd_status r;
114: const char *vendor;
115: const char *devname = sc->sc.sc_bus.bdev.dv_xname;
116:
117: cardbus_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo));
118: printf(" %s", devinfo);
119:
120: /* Map I/O registers */
121: if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, CARDBUS_MAPREG_TYPE_MEM, 0,
122: &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
123: printf("%s: can't map mem space\n", devname);
124: return;
125: }
126:
127: /* Disable interrupts, so we don't get any spurious ones. */
128: bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
129: OHCI_MIE);
130:
131: sc->sc_cc = cc;
132: sc->sc_cf = cf;
133: sc->sc_ct = ct;
134: sc->sc.sc_bus.dmatag = ca->ca_dmat;
135:
136: (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
137: (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
138:
139: /* Enable the device. */
140: csr = cardbus_conf_read(cc, cf, ca->ca_tag,
141: CARDBUS_COMMAND_STATUS_REG);
142: cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG,
143: csr | CARDBUS_COMMAND_MASTER_ENABLE
144: | CARDBUS_COMMAND_MEM_ENABLE);
145:
146: sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline,
147: IPL_USB, ohci_intr, sc, devname);
148: if (sc->sc_ih == NULL) {
149: printf("%s: couldn't establish interrupt\n", devname);
150: return;
151: }
152: printf(": irq %d", ca->ca_intrline);
153:
154: /* Figure out vendor for root hub descriptor. */
155: vendor = cardbus_findvendor(ca->ca_id);
156: sc->sc.sc_id_vendor = CARDBUS_VENDOR(ca->ca_id);
157: if (vendor)
158: strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor));
159: else
160: snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor),
161: "vendor 0x%04x", CARDBUS_VENDOR(ca->ca_id));
162:
163: /* Display revision and perform legacy emulation handover. */
164: if (ohci_checkrev(&sc->sc) != USBD_NORMAL_COMPLETION ||
165: ohci_handover(&sc->sc) != USBD_NORMAL_COMPLETION) {
166: cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
167: sc->sc_ih = 0;
168: return;
169: }
170:
171: r = ohci_init(&sc->sc);
172: if (r != USBD_NORMAL_COMPLETION) {
173: printf("%s: init failed, error=%d\n", devname, r);
174:
175: /* Avoid spurious interrupts. */
176: cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
177: sc->sc_ih = 0;
178:
179: return;
180: }
181:
182: sc->sc.sc_powerhook = powerhook_establish(ohci_power, &sc->sc);
183:
184: /* Attach usb device. */
185: sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus,
186: usbctlprint);
187: }
188:
189: int
190: ohci_cardbus_detach(struct device *self, int flags)
191: {
192: struct ohci_cardbus_softc *sc = (struct ohci_cardbus_softc *)self;
193: struct cardbus_devfunc *ct = sc->sc_ct;
194: int rv;
195:
196: rv = ohci_detach(&sc->sc, flags);
197: if (rv)
198: return (rv);
199:
200: if (sc->sc.sc_powerhook != NULL)
201: powerhook_disestablish(sc->sc.sc_powerhook);
202:
203: if (sc->sc_ih != NULL) {
204: cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
205: sc->sc_ih = NULL;
206: }
207: if (sc->sc.sc_size) {
208: Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot,
209: sc->sc.ioh, sc->sc.sc_size);
210: sc->sc.sc_size = 0;
211: }
212:
213: return (0);
214: }
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