168 lines
4.1 KiB
C
168 lines
4.1 KiB
C
/*-
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* Device driver for Specialix I/O8+ multiport serial card.
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*
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* Copyright 2003 Frank Mayhar <frank@exit.com>
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*
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* Derived from the "si" driver by Peter Wemm <peter@netplex.com.au>, using
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* lots of information from the Linux "specialix" driver by Roger Wolff
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* <R.E.Wolff@BitWizard.nl> and from the Intel CD1865 "Intelligent Eight-
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* Channel Communications Controller" datasheet. Roger was also nice
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* enough to answer numerous questions about stuff specific to the I/O8+
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* not covered by the CD1865 datasheet.
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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/module.h>
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#include <sys/bus.h>
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#include <sys/tty.h>
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <machine/clock.h>
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#include <sys/rman.h>
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#include <dev/sx/cd1865.h>
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#include <dev/sx/sxvar.h>
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#include <dev/sx/sx.h>
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#include <dev/sx/sx_util.h>
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#include <dev/pci/pcivar.h>
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static int
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sx_pci_probe(
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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 0x200011cb:
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if (pci_get_subdevice(dev) == (uint16_t)0xb008) {
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desc = "Specialix I/O8+ Multiport Serial Card";
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}
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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 BUS_PROBE_DEFAULT;
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}
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return ENXIO;
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}
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static int
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sx_pci_attach(device_t dev)
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{
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struct sx_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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sc->sc_io_rid = 0x18;
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sc->sc_io_res = bus_alloc_resource(dev,
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SYS_RES_IOPORT,
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&sc->sc_io_rid,
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0, ~0, 1,
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RF_ACTIVE);
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if (!sc->sc_io_res) {
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device_printf(dev, "can't map I/O\n");
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goto fail;
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}
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sc->sc_st = rman_get_bustag(sc->sc_io_res);
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sc->sc_sh = rman_get_bushandle(sc->sc_io_res);
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/*
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* Now that we have the bus handle, we can make certain that this
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* is an I/O8+.
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*/
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if (sx_probe_io8(dev)) {
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device_printf(dev, "Oops! Device is not an I/O8+ board!\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_io_res);*/
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/*sc->sc_maddr = rman_get_virtual(sc->sc_io_res);*/
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sc->sc_irq_rid = 0;
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sc->sc_irq_res = bus_alloc_resource(dev,
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SYS_RES_IRQ,
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&sc->sc_irq_rid,
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0, ~0, 1,
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RF_ACTIVE | RF_SHAREABLE);
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if (!sc->sc_irq_res) {
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device_printf(dev, "Can'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,
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sc->sc_irq_res,
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INTR_TYPE_TTY,
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sx_intr,
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sc, &ih);
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if (error) {
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device_printf(dev, "Can't activate interrupt\n");
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goto fail;
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}
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error = sxattach(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,
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SYS_RES_IRQ,
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sc->sc_irq_rid,
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sc->sc_irq_res);
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sc->sc_irq_res = 0;
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}
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if (sc->sc_io_res) {
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bus_release_resource(dev,
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SYS_RES_IOPORT,
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sc->sc_io_rid,
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sc->sc_io_res);
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sc->sc_io_res = 0;
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}
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return(error);
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}
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static device_method_t sx_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, sx_pci_probe),
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DEVMETHOD(device_attach, sx_pci_attach),
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/* DEVMETHOD(device_detach, sx_pci_detach),*/
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{ 0, 0 }
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};
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static driver_t sx_pci_driver = {
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"sx",
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sx_pci_methods,
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sizeof(struct sx_softc),
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};
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DRIVER_MODULE(sx, pci, sx_pci_driver, sx_devclass, 0, 0);
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