2 * Copyright (c) 2005, M. Warner Losh
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
31 #include <sys/param.h>
33 #include <sys/malloc.h>
34 #include <sys/systm.h>
38 #include <machine/bus.h>
40 #include <machine/resource.h>
42 #include <dev/pccard/pccardreg.h>
43 #include <dev/pccard/pccardvar.h>
44 #include <dev/pccard/pccardvarp.h>
45 #include <dev/pccard/pccard_cis.h>
47 static d_open_t pccard_open;
48 static d_close_t pccard_close;
49 static d_read_t pccard_read;
50 static d_ioctl_t pccard_ioctl;
52 static struct cdevsw pccard_cdevsw = {
53 .d_version = D_VERSION,
54 .d_open = pccard_open,
55 .d_close = pccard_close,
56 .d_read = pccard_read,
57 .d_ioctl = pccard_ioctl,
62 pccard_device_create(struct pccard_softc *sc)
66 minor = device_get_unit(sc->dev) << 16;
67 sc->cisdev = make_dev(&pccard_cdevsw, minor, 0, 0, 0666,
68 "pccard%u.cis", device_get_unit(sc->dev));
69 sc->cisdev->si_drv1 = sc;
74 pccard_device_destroy(struct pccard_softc *sc)
77 destroy_dev(sc->cisdev);
82 pccard_build_cis(const struct pccard_tuple *tuple, void *argp)
84 struct cis_buffer *cis;
88 cis = (struct cis_buffer *)argp;
90 * CISTPL_END is a special case, it has no length field.
92 if (tuple->code == CISTPL_END) {
93 if (cis->len + 1 > sizeof(cis->buffer))
95 cis->buffer[cis->len++] = tuple->code;
98 if (cis->len + 2 + tuple->length > sizeof(cis->buffer))
100 cis->buffer[cis->len++] = tuple->code;
101 cis->buffer[cis->len++] = tuple->length;
102 for (i = 0; i < tuple->length; i++) {
103 ch = pccard_tuple_read_1(tuple, i);
104 cis->buffer[cis->len++] = ch;
110 pccard_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
112 device_t parent, child;
115 struct pccard_softc *sc;
121 err = device_get_children(parent, &kids, &cnt);
132 sc->cis = malloc(sizeof(*sc->cis), M_TEMP, M_ZERO | M_WAITOK);
133 err = pccard_scan_cis(parent, child, pccard_build_cis, sc->cis);
135 free(sc->cis, M_TEMP);
144 pccard_close(struct cdev *dev, int fflags, int devtype, struct thread *td)
146 struct pccard_softc *sc;
149 free(sc->cis, M_TEMP);
156 pccard_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
163 pccard_read(struct cdev *dev, struct uio *uio, int ioflag)
165 struct pccard_softc *sc;
169 if (sc->cis == NULL || uio->uio_offset > sc->cis->len)
171 return (uiomove(sc->cis->buffer + uio->uio_offset,
172 MIN(uio->uio_resid, sc->cis->len - uio->uio_offset), uio));