3858c5f53c
level 117. Reviewed by: Naofumi Honda <honda@Kururu.math.sci.hokudai.ac.jp>
189 lines
5.3 KiB
C
189 lines
5.3 KiB
C
/* $NecBSD: bs_isa.c,v 1.3 1997/10/31 17:43:35 honda Exp $ */
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/* $NetBSD$ */
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/*
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* [NetBSD for NEC PC98 series]
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* Copyright (c) 1995, 1996 NetBSD/pc98 porting staff.
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* 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 <i386/Cbus/dev/bs/bsif.h>
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static int bs_isa_probe __P((struct device *, void *, void *));
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static void bs_isa_attach __P((struct device *, struct device *, void *));
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static void bs_args_copy
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__P((struct bs_softc *, struct isa_attach_args *, struct bshw *));
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struct cfattach bs_isa_ca = {
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sizeof(struct bs_softc), bs_isa_probe, bs_isa_attach
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};
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static void
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bs_args_copy(bsc, ia, hw)
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struct bs_softc *bsc;
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struct isa_attach_args *ia;
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struct bshw *hw;
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{
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bsc->sc_hw = hw;
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bsc->sc_iot = ia->ia_iot;
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bsc->sc_memt = ia->ia_memt;
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bsc->sc_dmat = ia->ia_dmat;
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bsc->sc_delaybah = ia->ia_delaybah; /* should be die */
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bsc->sc_iobase = ia->ia_iobase;
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if (ia->ia_maddr != MADDRUNK)
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bsc->sm_offset = BSHW_SMITFIFO_OFFSET;
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else
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bsc->sm_offset = 0;
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bsc->sc_cfgflags = DVCFG_MINOR(ia->ia_cfgflags);
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strcpy(bsc->sc_dvname, bsc->sc_dev.dv_xname);
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}
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static int
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bs_isa_probe(parent, match, aux)
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struct device *parent;
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void *match, *aux;
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{
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struct bs_softc *bsc = (void *) match;
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struct isa_attach_args *ia = aux;
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bus_space_handle_t ioh, memh = NULL;
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bus_space_tag_t iot, memt;
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struct bshw *hw;
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u_int irq, drq;
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int rv = 0;
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hw = DVCFG_HW(&bshw_hwsel, DVCFG_MAJOR(ia->ia_cfgflags));
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if (hw == NULL)
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return rv;
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iot = ia->ia_iot;
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memt = ia->ia_memt;
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if (ia->ia_iobase == IOBASEUNK)
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{
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printf("%s: iobase not specified. Assume default port(0x%x)\n",
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bsc->sc_dvname, BSHW_DEFAULT_PORT);
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ia->ia_iobase = BSHW_DEFAULT_PORT;
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}
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if (bus_space_map(iot, ia->ia_iobase, BSHW_IOSZ, 0, &ioh))
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return rv;
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if ((hw->hw_flags & BSHW_SMFIFO) != 0 && (ia->ia_maddr != MADDRUNK))
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{
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ia->ia_maddr = (ia->ia_maddr & (~((NBPG * 2) - 1))) + NBPG;
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ia->ia_msize = NBPG;
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if (bus_space_map(memt, ia->ia_maddr, NBPG, 0, &memh))
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{
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bus_space_unmap(iot, ioh, BSHW_IOSZ);
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return 0;
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}
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}
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else
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ia->ia_maddr = MADDRUNK;
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irq = IRQUNK;
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drq = DRQUNK;
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bsc->sc_ioh = ioh;
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bsc->sc_memh = memh;
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bs_args_copy(bsc, ia, hw);
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if (bshw_board_probe(bsc, &drq, &irq))
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goto bad;
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ia->ia_irq = irq;
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ia->ia_drq = drq;
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ia->ia_iosize = BSHW_IOSZ;
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rv = 1;
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bad:
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bus_space_unmap(iot, bsc->sc_ioh, BSHW_IOSZ);
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if (ia->ia_maddr != MADDRUNK)
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bus_space_unmap(memt, bsc->sc_memh, ia->ia_msize);
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return rv;
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}
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static void
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bs_isa_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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extern struct scsi_adapter pc98texa55bs;
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extern struct scsi_device bs_dev;
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struct bs_softc *bsc = (void *) self;
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struct isa_attach_args *ia = aux;
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bus_space_tag_t iot, memt;
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struct bshw *hw;
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int i;
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printf("\n");
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hw = DVCFG_HW(&bshw_hwsel, DVCFG_MAJOR(ia->ia_cfgflags));
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iot = ia->ia_iot;
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memt = ia->ia_memt;
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if (bus_space_map(iot, ia->ia_iobase, BSHW_IOSZ, 0, &bsc->sc_ioh))
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panic("%s: bus io map failed\n", bsc->sc_dev.dv_xname);
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if (ia->ia_maddr != MADDRUNK &&
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bus_space_map(memt, ia->ia_maddr, NBPG, 0, &bsc->sc_memh))
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panic("%s: bus mem map failed\n", bsc->sc_dev.dv_xname);
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if (isa_dmamap_create(NULL, ia->ia_drq, MAXBSIZE, BUS_DMA_NOWAIT))
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{
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printf("%s: can't set up ISA DMA map\n", bsc->sc_dev.dv_xname);
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return;
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}
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/* system initialize */
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bs_args_copy(bsc, ia, hw);
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bs_hostque_init(bsc);
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for (i = 0; i < NTARGETS; i++)
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{
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if (i != bsc->sc_hostid)
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bs_init_target_info(bsc, i);
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}
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bs_init_ccbque(BS_MAX_CCB);
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bsc->sc_hstate = BSC_BOOTUP;
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bsc->sc_retry = RETRIES;
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bsc->sc_wc = delaycount * 250;
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bs_reset_nexus(bsc);
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/* link upper layer */
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bsc->sc_link.adapter_target = bsc->sc_hostid;
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bsc->sc_link.openings = XSMAX;
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bsc->sc_link.max_target = 7;
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bsc->sc_link.channel = SCSI_CHANNEL_ONLY_ONE;
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bsc->sc_link.adapter_softc = bsc;
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bsc->sc_link.adapter = &pc98texa55bs;
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bsc->sc_link.device = &bs_dev;
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config_found(self, &bsc->sc_link, bsprint);
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bsc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
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IPL_BIO, bsintr, bsc);
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bs_start_timeout(bsc);
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}
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