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