Annotation of sys/arch/arm/s3c2xx0/ohci_s3c24x0.c, Revision 1.1.1.1
1.1 nbrk 1: /* $NetBSD: ohci_s3c24x0.c,v 1.3 2005/12/11 12:16:51 christos Exp $ */
2:
3: /* derived from ohci_pci.c */
4:
5: /*
6: * Copyright (c) 1998 The NetBSD Foundation, Inc.
7: * All rights reserved.
8: *
9: * This code is derived from software contributed to The NetBSD Foundation
10: * by Lennart Augustsson (lennart@augustsson.net) at
11: * Carlstedt Research & Technology.
12: *
13: * Redistribution and use in source and binary forms, with or without
14: * modification, are permitted provided that the following conditions
15: * are met:
16: * 1. Redistributions of source code must retain the above copyright
17: * notice, this list of conditions and the following disclaimer.
18: * 2. Redistributions in binary form must reproduce the above copyright
19: * notice, this list of conditions and the following disclaimer in the
20: * documentation and/or other materials provided with the distribution.
21: * 3. All advertising materials mentioning features or use of this software
22: * must display the following acknowledgement:
23: * This product includes software developed by the NetBSD
24: * Foundation, Inc. and its contributors.
25: * 4. Neither the name of The NetBSD Foundation nor the names of its
26: * contributors may be used to endorse or promote products derived
27: * from this software without specific prior written permission.
28: *
29: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
30: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
31: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
32: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
33: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
34: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
35: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
36: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
37: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39: * POSSIBILITY OF SUCH DAMAGE.
40: */
41:
42: #include <sys/cdefs.h>
43: __KERNEL_RCSID(0, "$NetBSD: ohci_s3c24x0.c,v 1.3 2005/12/11 12:16:51 christos Exp $");
44:
45: #include <sys/param.h>
46: #include <sys/systm.h>
47: #include <sys/kernel.h>
48: #include <sys/device.h>
49: #include <sys/proc.h>
50: #include <sys/queue.h>
51:
52: #include <machine/bus.h>
53:
54: #include <arm/s3c2xx0/s3c24x0var.h>
55:
56: #include <dev/usb/usb.h>
57: #include <dev/usb/usbdi.h>
58: #include <dev/usb/usbdivar.h>
59: #include <dev/usb/usb_mem.h>
60:
61: #include <dev/usb/ohcireg.h>
62: #include <dev/usb/ohcivar.h>
63:
64: int ohci_ssio_match(struct device *, struct cfdata *, void *);
65: void ohci_ssio_attach(struct device *, struct device *, void *);
66: int ohci_ssio_detach(device_ptr_t, int);
67:
68: extern int ohcidebug;
69:
70: struct ohci_ssio_softc {
71: ohci_softc_t sc;
72:
73: void *sc_ih; /* interrupt vectoring */
74: };
75:
76: CFATTACH_DECL(ohci_ssio, sizeof(struct ohci_ssio_softc),
77: ohci_ssio_match, ohci_ssio_attach, ohci_ssio_detach, ohci_activate);
78:
79: int
80: ohci_ssio_match(struct device *parent, struct cfdata *match, void *aux)
81: {
82: struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *)aux;
83: /* XXX: check some registers */
84:
85: if (sa->sa_dmat == NULL) {
86: /* busdma tag is not initialized. */
87: return 0;
88: }
89:
90: return 1;
91: }
92:
93: void
94: ohci_ssio_attach(struct device *parent, struct device *self, void *aux)
95: {
96: struct ohci_ssio_softc *sc = (struct ohci_ssio_softc *)self;
97: struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *)aux;
98:
99: usbd_status r;
100: char *devname = sc->sc.sc_bus.bdev.dv_xname;
101:
102: aprint_normal("\n");
103:
104: sc->sc.iot = sa->sa_iot;
105: /*ohcidebug=15;*/
106:
107: /* Map I/O registers */
108: if (bus_space_map(sc->sc.iot, sa->sa_addr, 0x5c, 0, &sc->sc.ioh)) {
109: printf("%s: can't map mem space\n", devname);
110: return;
111: }
112:
113: /* Disable interrupts, so we don't get any spurious ones. */
114: bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
115: OHCI_ALL_INTRS);
116:
117: sc->sc.sc_bus.dmatag = sa->sa_dmat;
118:
119: /* Enable the device. */
120: /* XXX: provide clock to USB block */
121:
122: /* establish the interrupt. */
123: sc->sc_ih = s3c24x0_intr_establish(sa->sa_intr, IPL_USB, IST_NONE, ohci_intr, sc);
124: if (sc->sc_ih == NULL) {
125: printf("%s: couldn't establish interrupt\n", devname);
126: return;
127: }
128:
129: strlcpy(sc->sc.sc_vendor, "Samsung", sizeof sc->sc.sc_vendor);
130:
131: r = ohci_init(&sc->sc);
132: if (r != USBD_NORMAL_COMPLETION) {
133: printf("%s: init failed, error=%d\n", devname, r);
134: return;
135: }
136:
137: /* Attach usb device. */
138: sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus,
139: usbctlprint);
140: }
141:
142: int
143: ohci_ssio_detach(device_ptr_t self, int flags)
144: {
145: return (0);
146: }
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