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300 lines
6.6 KiB
C
300 lines
6.6 KiB
C
/* $FreeBSD$ */
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/* $NecBSD: tmc18c30_pisa.c,v 1.22 1998/11/26 01:59:21 honda Exp $ */
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/* $NetBSD$ */
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/*
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* [Ported for FreeBSD]
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* Copyright (c) 2000
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* Noriaki Mitsunaga, Mitsuru Iwasaki and Takanori Watanabe.
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* All rights reserved.
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* [NetBSD for NEC PC-98 series]
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* Copyright (c) 1996, 1997, 1998
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* NetBSD/pc98 porting staff. All rights reserved.
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* Copyright (c) 1996, 1997, 1998
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* Naofumi HONDA. All rights reserved.
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* Copyright (c) 1996, 1997, 1998
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* Kouichi Matsuda. 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. 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
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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/disklabel.h>
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#if defined(__FreeBSD__) && __FreeBSD_version >= 500001
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#include <sys/bio.h>
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#endif
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#include <sys/buf.h>
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#include <sys/queue.h>
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#include <sys/malloc.h>
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#include <sys/errno.h>
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#include <vm/vm.h>
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#include <machine/bus_pio.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 <isa/isavar.h>
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#include <machine/dvcfg.h>
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#include <sys/device_port.h>
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#include <cam/scsi/scsi_low.h>
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#include <isa/isa_common.h>
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#include <cam/scsi/scsi_low_pisa.h>
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#include <dev/stg/tmc18c30reg.h>
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#include <dev/stg/tmc18c30var.h>
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#define STG_HOSTID 7
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#include <sys/kernel.h>
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#include <sys/module.h>
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static int stgprobe(device_t devi);
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static int stgattach(device_t devi);
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static void stg_isa_unload __P((device_t));
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static void
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stg_isa_intr(void * arg)
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{
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stgintr(arg);
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}
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static void
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stg_release_resource(device_t dev)
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{
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struct stg_softc *sc = device_get_softc(dev);
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if (sc->stg_intrhand) {
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bus_teardown_intr(dev, sc->irq_res, sc->stg_intrhand);
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}
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if (sc->port_res) {
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bus_release_resource(dev, SYS_RES_IOPORT,
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sc->port_rid, sc->port_res);
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}
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if (sc->irq_res) {
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bus_release_resource(dev, SYS_RES_IRQ,
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sc->irq_rid, sc->irq_res);
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}
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if (sc->mem_res) {
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bus_release_resource(dev, SYS_RES_MEMORY,
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sc->mem_rid, sc->mem_res);
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}
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}
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static int
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stg_alloc_resource(device_t dev)
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{
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struct stg_softc *sc = device_get_softc(dev);
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u_long maddr, msize;
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int error;
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sc->port_rid = 0;
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sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->port_rid,
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0, ~0, STGIOSZ, RF_ACTIVE);
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if (sc->port_res == NULL) {
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stg_release_resource(dev);
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return(ENOMEM);
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}
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sc->irq_rid = 0;
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sc->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irq_rid,
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0, ~0, 1, RF_ACTIVE);
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if (sc->irq_res == NULL) {
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stg_release_resource(dev);
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return(ENOMEM);
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}
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error = bus_get_resource(dev, SYS_RES_MEMORY, 0, &maddr, &msize);
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if (error) {
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return(0); /* XXX */
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}
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/* no need to allocate memory if not configured */
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if (maddr == 0 || msize == 0) {
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return(0);
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}
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sc->mem_rid = 0;
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sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mem_rid,
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0, ~0, 1, RF_ACTIVE);
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if (sc->mem_res == NULL) {
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stg_release_resource(dev);
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return(ENOMEM);
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}
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return(0);
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}
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static int
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stg_isa_probe(device_t dev)
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{
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struct stg_softc *sc = device_get_softc(dev);
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int error;
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bzero(sc, sizeof(struct stg_softc));
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error = stg_alloc_resource(dev);
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if (error) {
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return(error);
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}
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if (stgprobe(dev) == 0) {
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stg_release_resource(dev);
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return(ENXIO);
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}
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stg_release_resource(dev);
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return(0);
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}
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static int
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stg_isa_attach(device_t dev)
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{
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struct stg_softc *sc = device_get_softc(dev);
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int error;
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error = stg_alloc_resource(dev);
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if (error) {
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return(error);
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}
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error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_CAM | INTR_ENTROPY,
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stg_isa_intr, (void *)sc, &sc->stg_intrhand);
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if (error) {
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stg_release_resource(dev);
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return(error);
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}
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if (stgattach(dev) == 0) {
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stg_release_resource(dev);
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return(ENXIO);
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}
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return(0);
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}
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static void
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stg_isa_detach(device_t dev)
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{
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stg_isa_unload(dev);
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stg_release_resource(dev);
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}
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static device_method_t stg_isa_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, stg_isa_probe),
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DEVMETHOD(device_attach, stg_isa_attach),
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DEVMETHOD(device_detach, stg_isa_detach),
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{ 0, 0 }
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};
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static driver_t stg_isa_driver = {
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"stg",
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stg_isa_methods,
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sizeof(struct stg_softc),
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};
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static devclass_t stg_devclass;
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DRIVER_MODULE(stg, isa, stg_isa_driver, stg_devclass, 0, 0);
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static void
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stg_isa_unload(device_t devi)
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{
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struct stg_softc *sc = device_get_softc(devi);
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intrmask_t s;
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printf("%s: unload\n",sc->sc_sclow.sl_xname);
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s = splcam();
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scsi_low_deactivate((struct scsi_low_softc *)sc);
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scsi_low_dettach(&sc->sc_sclow);
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splx(s);
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}
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static int
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stgprobe(device_t devi)
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{
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int rv;
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struct stg_softc *sc = device_get_softc(devi);
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rv = stgprobesubr(rman_get_bustag(sc->port_res),
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rman_get_bushandle(sc->port_res),
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device_get_flags(devi));
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return rv;
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}
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static int
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stgattach(device_t devi)
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{
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struct stg_softc *sc;
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struct scsi_low_softc *slp;
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u_int32_t flags = device_get_flags(devi);
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u_int iobase = bus_get_resource_start(devi, SYS_RES_IOPORT, 0);
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intrmask_t s;
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char dvname[16];
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strcpy(dvname,"stg");
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if (iobase == 0)
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{
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printf("%s: no ioaddr is given\n", dvname);
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return (0);
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}
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sc = device_get_softc(devi);
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if (sc == NULL) {
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return(0);
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}
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slp = &sc->sc_sclow;
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slp->sl_dev = devi;
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sc->sc_iot = rman_get_bustag(sc->port_res);
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sc->sc_ioh = rman_get_bushandle(sc->port_res);
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slp->sl_hostid = STG_HOSTID;
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slp->sl_cfgflags = flags;
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s = splcam();
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stgattachsubr(sc);
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splx(s);
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return(STGIOSZ);
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}
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