199 lines
6.1 KiB
C
199 lines
6.1 KiB
C
/* $NetBSD: puc.c,v 1.7 2000/07/29 17:43:38 jlam Exp $ */
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/*-
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* Copyright (c) 2002 JF Hay. All rights reserved.
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* Copyright (c) 2000 M. Warner Losh. 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, this list of conditions and the following 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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* Copyright (c) 1996, 1998, 1999
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* Christopher G. Demetriou. 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, this list of conditions and the following 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/malloc.h>
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#include <sys/sysctl.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/puc/puc_cfg.h>
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#include <dev/puc/puc_bfe.h>
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static int puc_msi_disable;
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SYSCTL_INT(_hw_puc, OID_AUTO, msi_disable, CTLFLAG_RDTUN,
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&puc_msi_disable, 0, "Disable use of MSI interrupts by puc(9)");
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static const struct puc_cfg *
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puc_pci_match(device_t dev, const struct puc_cfg *desc)
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{
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uint16_t vendor, device;
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uint16_t subvendor, subdevice;
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vendor = pci_get_vendor(dev);
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device = pci_get_device(dev);
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subvendor = pci_get_subvendor(dev);
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subdevice = pci_get_subdevice(dev);
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while (desc->vendor != 0xffff) {
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if (desc->vendor == vendor && desc->device == device) {
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/* exact match */
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if (desc->subvendor == subvendor &&
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desc->subdevice == subdevice)
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return (desc);
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/* wildcard match */
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if (desc->subvendor == 0xffff)
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return (desc);
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}
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desc++;
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}
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/* no match */
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return (NULL);
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}
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static int
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puc_pci_probe(device_t dev)
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{
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const struct puc_cfg *desc;
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if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0)
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return (ENXIO);
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desc = puc_pci_match(dev, puc_pci_devices);
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if (desc == NULL)
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return (ENXIO);
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return (puc_bfe_probe(dev, desc));
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}
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static int
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puc_pci_attach(device_t dev)
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{
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struct puc_softc *sc;
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int error, count;
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sc = device_get_softc(dev);
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if (!puc_msi_disable) {
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count = 1;
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if (pci_alloc_msi(dev, &count) == 0) {
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sc->sc_msi = 1;
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sc->sc_irid = 1;
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}
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}
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error = puc_bfe_attach(dev);
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if (error != 0 && sc->sc_msi)
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pci_release_msi(dev);
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return (error);
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}
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static int
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puc_pci_detach(device_t dev)
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{
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struct puc_softc *sc;
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int error;
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sc = device_get_softc(dev);
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error = puc_bfe_detach(dev);
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if (error != 0)
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return (error);
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if (sc->sc_msi)
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error = pci_release_msi(dev);
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return (error);
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}
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static device_method_t puc_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, puc_pci_probe),
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DEVMETHOD(device_attach, puc_pci_attach),
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DEVMETHOD(device_detach, puc_pci_detach),
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DEVMETHOD(bus_alloc_resource, puc_bus_alloc_resource),
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DEVMETHOD(bus_release_resource, puc_bus_release_resource),
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DEVMETHOD(bus_get_resource, puc_bus_get_resource),
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DEVMETHOD(bus_read_ivar, puc_bus_read_ivar),
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DEVMETHOD(bus_setup_intr, puc_bus_setup_intr),
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DEVMETHOD(bus_teardown_intr, puc_bus_teardown_intr),
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DEVMETHOD(bus_print_child, puc_bus_print_child),
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DEVMETHOD(bus_child_pnpinfo_str, puc_bus_child_pnpinfo_str),
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DEVMETHOD(bus_child_location_str, puc_bus_child_location_str),
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DEVMETHOD_END
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};
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static driver_t puc_pci_driver = {
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puc_driver_name,
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puc_pci_methods,
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sizeof(struct puc_softc),
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};
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DRIVER_MODULE(puc, pci, puc_pci_driver, puc_devclass, 0, 0);
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