167 lines
4.4 KiB
C
167 lines
4.4 KiB
C
/*-
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* Copyright (c) 2005-2008, M. Warner Losh
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/malloc.h>
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#include <sys/systm.h>
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#include <sys/uio.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <sys/pciio.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pci_private.h>
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#include <dev/cardbus/cardbusreg.h>
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#include <dev/cardbus/cardbusvar.h>
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#include <dev/cardbus/cardbus_cis.h>
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#include <dev/pccard/pccard_cis.h>
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static d_open_t cardbus_open;
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static d_close_t cardbus_close;
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static d_read_t cardbus_read;
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static d_ioctl_t cardbus_ioctl;
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static struct cdevsw cardbus_cdevsw = {
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.d_version = D_VERSION,
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.d_open = cardbus_open,
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.d_close = cardbus_close,
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.d_read = cardbus_read,
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.d_ioctl = cardbus_ioctl,
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.d_name = "cardbus"
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};
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static int
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cardbus_build_cis(device_t cbdev, device_t child, int id,
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int len, uint8_t *tupledata, uint32_t start, uint32_t *off,
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struct tuple_callbacks *info, void *argp)
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{
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struct cis_buffer *cis;
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int i;
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cis = (struct cis_buffer *)argp;
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/*
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* CISTPL_END is a special case, it has no length field.
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*/
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if (id == CISTPL_END) {
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if (cis->len + 1 > sizeof(cis->buffer)) {
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cis->len = 0;
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return (ENOSPC);
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}
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cis->buffer[cis->len++] = id;
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return (0);
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}
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if (cis->len + 2 + len > sizeof(cis->buffer)) {
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cis->len = 0;
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return (ENOSPC);
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}
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cis->buffer[cis->len++] = id;
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cis->buffer[cis->len++] = len;
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for (i = 0; i < len; i++)
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cis->buffer[cis->len++] = tupledata[i];
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return (0);
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}
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static int
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cardbus_device_buffer_cis(device_t parent, device_t child,
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struct cis_buffer *cbp)
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{
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struct tuple_callbacks cb[] = {
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{CISTPL_GENERIC, "GENERIC", cardbus_build_cis}
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};
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return (cardbus_parse_cis(parent, child, cb, cbp));
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}
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int
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cardbus_device_create(struct cardbus_softc *sc, struct cardbus_devinfo *devi,
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device_t parent, device_t child)
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{
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uint32_t minor;
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int unit;
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cardbus_device_buffer_cis(parent, child, &devi->sc_cis);
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minor = (device_get_unit(sc->sc_dev) << 8) + devi->pci.cfg.func;
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unit = device_get_unit(sc->sc_dev);
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devi->sc_cisdev = make_dev(&cardbus_cdevsw, minor, 0, 0, 0666,
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"cardbus%d.%d.cis", unit, devi->pci.cfg.func);
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if (devi->pci.cfg.func == 0)
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make_dev_alias(devi->sc_cisdev, "cardbus%d.cis", unit);
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devi->sc_cisdev->si_drv1 = devi;
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return (0);
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}
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int
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cardbus_device_destroy(struct cardbus_devinfo *devi)
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{
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if (devi->sc_cisdev)
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destroy_dev(devi->sc_cisdev);
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return (0);
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}
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static int
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cardbus_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
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{
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return (0);
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}
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static int
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cardbus_close(struct cdev *dev, int fflags, int devtype, struct thread *td)
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{
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return (0);
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}
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static int
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cardbus_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
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struct thread *td)
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{
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return (ENOTTY);
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}
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static int
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cardbus_read(struct cdev *dev, struct uio *uio, int ioflag)
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{
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struct cardbus_devinfo *devi;
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devi = dev->si_drv1;
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/* EOF */
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if (uio->uio_offset >= devi->sc_cis.len)
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return (0);
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return (uiomove(devi->sc_cis.buffer + uio->uio_offset,
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MIN(uio->uio_resid, devi->sc_cis.len - uio->uio_offset), uio));
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}
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