2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2005 M. Warner Losh <imp@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice unmodified, this list of conditions, and the following
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
34 #include <sys/malloc.h>
35 #include <sys/systm.h>
39 #include <machine/bus.h>
41 #include <machine/resource.h>
43 #include <dev/pccard/pccardreg.h>
44 #include <dev/pccard/pccardvar.h>
45 #include <dev/pccard/pccardvarp.h>
46 #include <dev/pccard/pccard_cis.h>
48 static d_open_t pccard_open;
49 static d_close_t pccard_close;
50 static d_read_t pccard_read;
51 static d_ioctl_t pccard_ioctl;
53 static struct cdevsw pccard_cdevsw = {
54 .d_version = D_VERSION,
55 .d_open = pccard_open,
56 .d_close = pccard_close,
57 .d_read = pccard_read,
58 .d_ioctl = pccard_ioctl,
63 pccard_device_create(struct pccard_softc *sc)
67 minor = device_get_unit(sc->dev) << 16;
68 sc->cisdev = make_dev(&pccard_cdevsw, minor, 0, 0, 0666,
69 "pccard%u.cis", device_get_unit(sc->dev));
70 sc->cisdev->si_drv1 = sc;
75 pccard_device_destroy(struct pccard_softc *sc)
78 destroy_dev(sc->cisdev);
83 pccard_build_cis(const struct pccard_tuple *tuple, void *argp)
85 struct cis_buffer *cis;
89 cis = (struct cis_buffer *)argp;
91 * CISTPL_END is a special case, it has no length field.
93 if (tuple->code == CISTPL_END) {
94 if (cis->len + 1 > sizeof(cis->buffer))
96 cis->buffer[cis->len++] = tuple->code;
99 if (cis->len + 2 + tuple->length > sizeof(cis->buffer))
101 cis->buffer[cis->len++] = tuple->code;
102 cis->buffer[cis->len++] = tuple->length;
103 for (i = 0; i < tuple->length; i++) {
104 ch = pccard_tuple_read_1(tuple, i);
105 cis->buffer[cis->len++] = ch;
111 pccard_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
113 device_t parent, child;
116 struct pccard_softc *sc;
122 err = device_get_children(parent, &kids, &cnt);
133 sc->cis = malloc(sizeof(*sc->cis), M_TEMP, M_ZERO | M_WAITOK);
134 err = pccard_scan_cis(parent, child, pccard_build_cis, sc->cis);
136 free(sc->cis, M_TEMP);
145 pccard_close(struct cdev *dev, int fflags, int devtype, struct thread *td)
147 struct pccard_softc *sc;
150 free(sc->cis, M_TEMP);
157 pccard_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
164 pccard_read(struct cdev *dev, struct uio *uio, int ioflag)
166 struct pccard_softc *sc;
170 if (sc->cis == NULL || uio->uio_offset > sc->cis->len)
172 return (uiomove(sc->cis->buffer + uio->uio_offset,
173 MIN(uio->uio_resid, sc->cis->len - uio->uio_offset), uio));