a92cf726f8
related cleanups: - Require each driver to initalize a mutex in the scsi_low_softc that is shared with the scsi_low code. This mutex is used for CAM SIMs, timers, and interrupt handlers. - Replace the osdep function switch with direct calls to the relevant CAM functions and direct manipulation of timers via callout(9). - Collapse the CAM-specific scsi_low_osdep_interface substructure directly into scsi_low_softc. - Use bus_*() instead of bus_space_*(). - Return BUS_PROBE_DEFAULT from probe routines instead of 0. - No need to zero softcs. - Pass 0ul and ~0ul instead of 0 and ~0 to bus_alloc_resource(). - Spell "dettach" as "detach". - Remove unused 'dvname' variables. - De-spl(). Tested by: no one
177 lines
4.4 KiB
C
177 lines
4.4 KiB
C
/*-
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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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*/
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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/socket.h>
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#include <sys/module.h>
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#include <sys/bus.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 <cam/scsi/scsi_low.h>
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#include <dev/stg/tmc18c30reg.h>
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#include <dev/stg/tmc18c30var.h>
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#include <dev/stg/tmc18c30.h>
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#define STG_HOSTID 7
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devclass_t stg_devclass;
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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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mtx_init(&sc->sc_sclow.sl_lock, "stg", NULL, MTX_DEF);
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sc->port_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
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&sc->port_rid, 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_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
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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_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
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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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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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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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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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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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mtx_destroy(&sc->sc_sclow.sl_lock);
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}
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int
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stg_probe(device_t dev)
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{
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int rv;
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struct stg_softc *sc = device_get_softc(dev);
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rv = stgprobesubr(sc->port_res,
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device_get_flags(dev));
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return rv;
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}
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int
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stg_attach(device_t dev)
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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(dev);
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sc = device_get_softc(dev);
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slp = &sc->sc_sclow;
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slp->sl_dev = dev;
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slp->sl_hostid = STG_HOSTID;
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slp->sl_cfgflags = flags;
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stgattachsubr(sc);
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return(STGIOSZ);
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}
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int
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stg_detach(device_t dev)
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{
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struct stg_softc *sc = device_get_softc(dev);
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scsi_low_deactivate(&sc->sc_sclow);
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scsi_low_detach(&sc->sc_sclow);
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stg_release_resource(dev);
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return (0);
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}
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void
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stg_intr(void *arg)
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{
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struct stg_softc *sc;
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sc = arg;
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SCSI_LOW_LOCK(&sc->sc_sclow);
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stgintr(sc);
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SCSI_LOW_UNLOCK(&sc->sc_sclow);
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}
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