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142 lines
3.3 KiB
C
142 lines
3.3 KiB
C
/*
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* Device driver for Specialix range (SI/XIO) of serial line multiplexors.
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*
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* Copyright (C) 2000, Peter Wemm <peter@netplex.com.au>
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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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* notices, 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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* notices, 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 ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHORS BE LIABLE.
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*
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* $FreeBSD$
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*/
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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/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 <dev/si/sireg.h>
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#include <dev/si/sivar.h>
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#include <pci/pcivar.h>
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static int
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si_pci_probe(device_t dev)
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{
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const char *desc = NULL;
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switch (pci_get_devid(dev)) {
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case 0x400011cb:
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desc = "Specialix SI/XIO PCI host card";
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break;
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case 0x200011cb:
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if (pci_read_config(dev, SIJETSSIDREG, 4) == 0x020011cb)
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desc = "Specialix SX PCI host card";
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break;
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}
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if (desc) {
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device_set_desc(dev, desc);
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return 0;
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}
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return ENXIO;
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}
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static int
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si_pci_attach(device_t dev)
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{
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struct si_softc *sc;
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void *ih;
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int error;
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error = 0;
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ih = NULL;
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sc = device_get_softc(dev);
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switch (pci_get_devid(dev)) {
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case 0x400011cb:
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sc->sc_type = SIPCI;
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sc->sc_mem_rid = SIPCIBADR;
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break;
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case 0x200011cb:
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sc->sc_type = SIJETPCI;
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sc->sc_mem_rid = SIJETBADR;
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break;
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}
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sc->sc_mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
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&sc->sc_mem_rid,
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0, ~0, 1, RF_ACTIVE);
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if (!sc->sc_mem_res) {
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device_printf(dev, "couldn't map memory\n");
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goto fail;
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}
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sc->sc_paddr = (caddr_t)rman_get_start(sc->sc_mem_res);
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sc->sc_maddr = rman_get_virtual(sc->sc_mem_res);
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sc->sc_irq_rid = 0;
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sc->sc_irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->sc_irq_rid,
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0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
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if (!sc->sc_irq_res) {
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device_printf(dev, "couldn't map interrupt\n");
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goto fail;
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}
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sc->sc_irq = rman_get_start(sc->sc_irq_res);
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error = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_TTY,
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si_intr, sc, &ih);
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if (error) {
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device_printf(dev, "could not activate interrupt\n");
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goto fail;
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}
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error = siattach(dev);
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if (error)
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goto fail;
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return (0); /* success */
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fail:
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if (error == 0)
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error = ENXIO;
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if (sc->sc_irq_res) {
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if (ih)
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bus_teardown_intr(dev, sc->sc_irq_res, ih);
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bus_release_resource(dev, SYS_RES_IRQ,
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sc->sc_irq_rid, sc->sc_irq_res);
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sc->sc_irq_res = 0;
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}
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if (sc->sc_mem_res) {
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bus_release_resource(dev, SYS_RES_MEMORY,
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sc->sc_mem_rid, sc->sc_mem_res);
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sc->sc_mem_res = 0;
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}
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return (error);
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}
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static device_method_t si_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, si_pci_probe),
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DEVMETHOD(device_attach, si_pci_attach),
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{ 0, 0 }
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};
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static driver_t si_pci_driver = {
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"si",
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si_pci_methods,
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sizeof(struct si_softc),
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};
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DRIVER_MODULE(si, pci, si_pci_driver, si_devclass, 0, 0);
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