ddfc9c4c59
Now that the upper layers all go through a layer to tie into these
information functions that translates an sbuf into char * and len. The
current interface suffers issues of what to do in cases of truncation,
etc. Instead, migrate all these functions to using struct sbuf and these
issues go away. The caller is also in charge of any memory allocation
and/or expansion that's needed during this process.
Create a bus_generic_child_{pnpinfo,location} and make it default. It
just returns success. This is for those busses that have no information
for these items. Migrate the now-empty routines to using this as
appropriate.
Document these new interfaces with man pages, and oversight from before.
Reviewed by: jhb, bcr
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D29937
203 lines
6.2 KiB
C
203 lines
6.2 KiB
C
/* $NetBSD: puc.c,v 1.7 2000/07/29 17:43:38 jlam Exp $ */
|
|
|
|
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND BSD-3-Clause
|
|
*
|
|
* Copyright (c) 2002 JF Hay. All rights reserved.
|
|
* Copyright (c) 2000 M. Warner Losh <imp@FreeBSD.org>
|
|
*
|
|
* 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, 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.
|
|
*/
|
|
|
|
/*-
|
|
* Copyright (c) 1996, 1998, 1999
|
|
* Christopher G. Demetriou. 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, 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Christopher G. Demetriou
|
|
* for the NetBSD Project.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/sysctl.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
#include <sys/rman.h>
|
|
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcivar.h>
|
|
|
|
#include <dev/puc/puc_cfg.h>
|
|
#include <dev/puc/puc_bfe.h>
|
|
#include <dev/puc/pucdata.c>
|
|
|
|
static int puc_msi_disable;
|
|
SYSCTL_INT(_hw_puc, OID_AUTO, msi_disable, CTLFLAG_RDTUN,
|
|
&puc_msi_disable, 0, "Disable use of MSI interrupts by puc(9)");
|
|
|
|
static const struct puc_cfg *
|
|
puc_pci_match(device_t dev, const struct puc_cfg *desc)
|
|
{
|
|
uint16_t vendor, device;
|
|
uint16_t subvendor, subdevice;
|
|
|
|
vendor = pci_get_vendor(dev);
|
|
device = pci_get_device(dev);
|
|
subvendor = pci_get_subvendor(dev);
|
|
subdevice = pci_get_subdevice(dev);
|
|
|
|
while (desc->vendor != 0xffff) {
|
|
if (desc->vendor == vendor && desc->device == device) {
|
|
/* exact match */
|
|
if (desc->subvendor == subvendor &&
|
|
desc->subdevice == subdevice)
|
|
return (desc);
|
|
/* wildcard match */
|
|
if (desc->subvendor == 0xffff)
|
|
return (desc);
|
|
}
|
|
desc++;
|
|
}
|
|
|
|
/* no match */
|
|
return (NULL);
|
|
}
|
|
|
|
static int
|
|
puc_pci_probe(device_t dev)
|
|
{
|
|
const struct puc_cfg *desc;
|
|
|
|
if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0)
|
|
return (ENXIO);
|
|
|
|
desc = puc_pci_match(dev, puc_pci_devices);
|
|
if (desc == NULL)
|
|
return (ENXIO);
|
|
return (puc_bfe_probe(dev, desc));
|
|
}
|
|
|
|
static int
|
|
puc_pci_attach(device_t dev)
|
|
{
|
|
struct puc_softc *sc;
|
|
int error, count;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
if (!puc_msi_disable) {
|
|
count = 1;
|
|
|
|
if (pci_alloc_msi(dev, &count) == 0) {
|
|
sc->sc_msi = 1;
|
|
sc->sc_irid = 1;
|
|
}
|
|
}
|
|
|
|
error = puc_bfe_attach(dev);
|
|
|
|
if (error != 0 && sc->sc_msi)
|
|
pci_release_msi(dev);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
puc_pci_detach(device_t dev)
|
|
{
|
|
struct puc_softc *sc;
|
|
int error;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
error = puc_bfe_detach(dev);
|
|
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
if (sc->sc_msi)
|
|
error = pci_release_msi(dev);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static device_method_t puc_pci_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, puc_pci_probe),
|
|
DEVMETHOD(device_attach, puc_pci_attach),
|
|
DEVMETHOD(device_detach, puc_pci_detach),
|
|
|
|
DEVMETHOD(bus_alloc_resource, puc_bus_alloc_resource),
|
|
DEVMETHOD(bus_release_resource, puc_bus_release_resource),
|
|
DEVMETHOD(bus_get_resource, puc_bus_get_resource),
|
|
DEVMETHOD(bus_read_ivar, puc_bus_read_ivar),
|
|
DEVMETHOD(bus_setup_intr, puc_bus_setup_intr),
|
|
DEVMETHOD(bus_teardown_intr, puc_bus_teardown_intr),
|
|
DEVMETHOD(bus_print_child, puc_bus_print_child),
|
|
DEVMETHOD(bus_child_pnpinfo, puc_bus_child_pnpinfo),
|
|
DEVMETHOD(bus_child_location, puc_bus_child_location),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static driver_t puc_pci_driver = {
|
|
puc_driver_name,
|
|
puc_pci_methods,
|
|
sizeof(struct puc_softc),
|
|
};
|
|
|
|
DRIVER_MODULE(puc, pci, puc_pci_driver, puc_devclass, 0, 0);
|
|
MODULE_PNP_INFO("U16:vendor;U16:device;U16:#;U16:#;D:#", pci, puc,
|
|
puc_pci_devices, nitems(puc_pci_devices) - 1);
|