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/* $NecBSD: bs_isa.c,v 1.3 1997/10/31 17:43:35 honda Exp $ */
/* $NetBSD$ */
/*
* [NetBSD for NEC PC98 series]
* Copyright (c) 1995, 1996 NetBSD/pc98 porting staff.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <i386/Cbus/dev/bs/bsif.h>
static int bs_isa_probe __P((struct device *, void *, void *));
static void bs_isa_attach __P((struct device *, struct device *, void *));
static void bs_args_copy
__P((struct bs_softc *, struct isa_attach_args *, struct bshw *));
struct cfattach bs_isa_ca = {
sizeof(struct bs_softc), bs_isa_probe, bs_isa_attach
};
static void
bs_args_copy(bsc, ia, hw)
struct bs_softc *bsc;
struct isa_attach_args *ia;
struct bshw *hw;
{
bsc->sc_hw = hw;
bsc->sc_iot = ia->ia_iot;
bsc->sc_memt = ia->ia_memt;
bsc->sc_dmat = ia->ia_dmat;
bsc->sc_delaybah = ia->ia_delaybah; /* should be die */
bsc->sc_iobase = ia->ia_iobase;
if (ia->ia_maddr != MADDRUNK)
bsc->sm_offset = BSHW_SMITFIFO_OFFSET;
else
bsc->sm_offset = 0;
bsc->sc_cfgflags = DVCFG_MINOR(ia->ia_cfgflags);
snprintf(bsc->sc_dvname, sizeof(bsc->sc_dvname),
"%s", bsc->sc_dev.dv_xname);
}
static int
bs_isa_probe(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct bs_softc *bsc = (void *) match;
struct isa_attach_args *ia = aux;
bus_space_handle_t ioh, memh = NULL;
bus_space_tag_t iot, memt;
struct bshw *hw;
u_int irq, drq;
int rv = 0;
hw = DVCFG_HW(&bshw_hwsel, DVCFG_MAJOR(ia->ia_cfgflags));
if (hw == NULL)
return rv;
iot = ia->ia_iot;
memt = ia->ia_memt;
if (ia->ia_iobase == IOBASEUNK)
{
printf("%s: iobase not specified. Assume default port(0x%x)\n",
bsc->sc_dvname, BSHW_DEFAULT_PORT);
ia->ia_iobase = BSHW_DEFAULT_PORT;
}
if (bus_space_map(iot, ia->ia_iobase, BSHW_IOSZ, 0, &ioh))
return rv;
if ((hw->hw_flags & BSHW_SMFIFO) != 0 && (ia->ia_maddr != MADDRUNK))
{
ia->ia_maddr = (ia->ia_maddr & (~((NBPG * 2) - 1))) + NBPG;
ia->ia_msize = NBPG;
if (bus_space_map(memt, ia->ia_maddr, NBPG, 0, &memh))
{
bus_space_unmap(iot, ioh, BSHW_IOSZ);
return 0;
}
}
else
ia->ia_maddr = MADDRUNK;
irq = IRQUNK;
drq = DRQUNK;
bsc->sc_ioh = ioh;
bsc->sc_memh = memh;
bs_args_copy(bsc, ia, hw);
if (bshw_board_probe(bsc, &drq, &irq))
goto bad;
ia->ia_irq = irq;
ia->ia_drq = drq;
ia->ia_iosize = BSHW_IOSZ;
rv = 1;
bad:
bus_space_unmap(iot, bsc->sc_ioh, BSHW_IOSZ);
if (ia->ia_maddr != MADDRUNK)
bus_space_unmap(memt, bsc->sc_memh, ia->ia_msize);
return rv;
}
static void
bs_isa_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
extern struct scsi_adapter pc98texa55bs;
extern struct scsi_device bs_dev;
struct bs_softc *bsc = (void *) self;
struct isa_attach_args *ia = aux;
bus_space_tag_t iot, memt;
struct bshw *hw;
int i;
printf("\n");
hw = DVCFG_HW(&bshw_hwsel, DVCFG_MAJOR(ia->ia_cfgflags));
iot = ia->ia_iot;
memt = ia->ia_memt;
if (bus_space_map(iot, ia->ia_iobase, BSHW_IOSZ, 0, &bsc->sc_ioh))
panic("%s: bus io map failed\n", bsc->sc_dev.dv_xname);
if (ia->ia_maddr != MADDRUNK &&
bus_space_map(memt, ia->ia_maddr, NBPG, 0, &bsc->sc_memh))
panic("%s: bus mem map failed\n", bsc->sc_dev.dv_xname);
if (isa_dmamap_create(NULL, ia->ia_drq, MAXBSIZE, BUS_DMA_NOWAIT))
{
printf("%s: can't set up ISA DMA map\n", bsc->sc_dev.dv_xname);
return;
}
/* system initialize */
bs_args_copy(bsc, ia, hw);
bs_hostque_init(bsc);
for (i = 0; i < NTARGETS; i++)
{
if (i != bsc->sc_hostid)
bs_init_target_info(bsc, i);
}
bs_init_ccbque(BS_MAX_CCB);
bsc->sc_hstate = BSC_BOOTUP;
bsc->sc_retry = RETRIES;
bsc->sc_wc = delaycount * 250;
bs_reset_nexus(bsc);
/* link upper layer */
bsc->sc_link.adapter_target = bsc->sc_hostid;
bsc->sc_link.openings = XSMAX;
bsc->sc_link.max_target = 7;
bsc->sc_link.channel = SCSI_CHANNEL_ONLY_ONE;
bsc->sc_link.adapter_softc = bsc;
bsc->sc_link.adapter = &pc98texa55bs;
bsc->sc_link.device = &bs_dev;
config_found(self, &bsc->sc_link, bsprint);
bsc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
IPL_BIO, bsintr, bsc);
bs_start_timeout(bsc);
}
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