9725900ba6
Add support for MSI interrupts in the puc(9) driver. By default the driver will prefer MSI interrupts to legacy interrupts. A tunable, hw.puc.msi_disable, has been added to force the allocation of legacy interrupts. Reviewed by: jhb@ MFC after: 2 weeks Sponsored by: Sandvine Inc.
100 lines
3.2 KiB
C
100 lines
3.2 KiB
C
/*-
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* Copyright (c) 2002 Poul-Henning Kamp. 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 ``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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*/
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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/pccard/pccardvar.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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/* http://www.argosy.com.tw/product/sp320.htm */
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const struct puc_cfg puc_pccard_rscom = {
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0, 0, 0, 0,
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"ARGOSY SP320 Dual port serial PCMCIA",
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DEFAULT_RCLK,
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PUC_PORT_2S, 0, 1, 0,
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};
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static int
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puc_pccard_probe(device_t dev)
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{
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const char *vendor, *product;
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int error;
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error = pccard_get_vendor_str(dev, &vendor);
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if (error)
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return(error);
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error = pccard_get_product_str(dev, &product);
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if (error)
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return(error);
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if (!strcmp(vendor, "PCMCIA") && !strcmp(product, "RS-COM 2P"))
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return (puc_bfe_probe(dev, &puc_pccard_rscom));
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return (ENXIO);
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}
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static device_method_t puc_pccard_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, puc_pccard_probe),
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DEVMETHOD(device_attach, puc_bfe_attach),
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DEVMETHOD(device_detach, puc_bfe_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_pccard_driver = {
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puc_driver_name,
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puc_pccard_methods,
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sizeof(struct puc_softc),
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};
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DRIVER_MODULE(puc, pccard, puc_pccard_driver, puc_devclass, 0, 0);
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