152 lines
3.8 KiB
C
152 lines
3.8 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 <dev/eisa/eisaconf.h>
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static int
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si_eisa_probe(device_t dev)
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{
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u_long iobase;
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u_long maddr;
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int irq;
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if (eisa_get_id(dev) != SIEISADEVID)
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return ENXIO;
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device_set_desc(dev, "Specialix SI/XIO EISA host card");
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iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + SIEISABASE;
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eisa_add_iospace(dev, iobase, SIEISAIOSIZE, RESVADDR_NONE);
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maddr = (inb(iobase+1) << 24) | (inb(iobase) << 16);
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eisa_add_mspace(dev, maddr, SIEISA_MEMSIZE, RESVADDR_NONE);
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irq = ((inb(iobase+2) >> 4) & 0xf);
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eisa_add_intr(dev, irq, EISA_TRIGGER_LEVEL); /* XXX shared? */
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return (0);
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}
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static int
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si_eisa_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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sc->sc_type = SIEISA;
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sc->sc_port_rid = 0;
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sc->sc_port_res = bus_alloc_resource(dev, SYS_RES_IOPORT,
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&sc->sc_port_rid,
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0, ~0, 1, RF_ACTIVE);
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if (!sc->sc_port_res) {
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device_printf(dev, "couldn't allocate ioports\n");
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goto fail;
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}
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sc->sc_iobase = rman_get_start(sc->sc_port_res);
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sc->sc_mem_rid = 0;
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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 allocate iomemory");
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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 allocate interrupt");
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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, "couldn't activate interrupt");
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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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if (sc->sc_port_res) {
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bus_release_resource(dev, SYS_RES_IOPORT,
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sc->sc_port_rid, sc->sc_port_res);
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sc->sc_port_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_eisa_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, si_eisa_probe),
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DEVMETHOD(device_attach, si_eisa_attach),
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{ 0, 0 }
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};
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static driver_t si_eisa_driver = {
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"si",
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si_eisa_methods,
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sizeof(struct si_softc),
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};
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DRIVER_MODULE(si, eisa, si_eisa_driver, si_devclass, 0, 0);
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