256 lines
7.0 KiB
C
256 lines
7.0 KiB
C
/* $NetBSD: nca_pcmcia.c,v 1.20 2005/02/27 00:27:43 perry Exp $ */
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/*-
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* Copyright (c) 2000, 2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Charles M. Hannum.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN 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/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: nca_pcmcia.c,v 1.20 2005/02/27 00:27:43 perry Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/buf.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/scsipi/scsi_all.h>
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#include <dev/scsipi/scsipi_all.h>
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#include <dev/scsipi/scsiconf.h>
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#include <dev/pcmcia/pcmciareg.h>
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#include <dev/pcmcia/pcmciavar.h>
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#include <dev/pcmcia/pcmciadevs.h>
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#include <dev/ic/ncr5380reg.h>
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#include <dev/ic/ncr5380var.h>
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#include <dev/ic/ncr53c400reg.h>
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struct nca_pcmcia_softc {
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struct ncr5380_softc sc_ncr5380; /* glue to MI code */
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/* PCMCIA-specific goo. */
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struct pcmcia_function *sc_pf; /* our PCMCIA function */
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void *sc_ih; /* interrupt handler */
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int sc_state;
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#define NCA_PCMCIA_ATTACHED 3
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};
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int nca_pcmcia_match(struct device *, struct cfdata *, void *);
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int nca_pcmcia_validate_config(struct pcmcia_config_entry *);
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void nca_pcmcia_attach(struct device *, struct device *, void *);
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int nca_pcmcia_detach(struct device *, int);
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int nca_pcmcia_enable(struct device *, int);
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CFATTACH_DECL(nca_pcmcia, sizeof(struct nca_pcmcia_softc),
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nca_pcmcia_match, nca_pcmcia_attach, nca_pcmcia_detach, NULL);
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#define MIN_DMA_LEN 128
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/* Options for disconnect/reselect, DMA, and interrupts. */
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#define NCA_NO_DISCONNECT 0x00ff
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#define NCA_NO_PARITY_CHK 0xff00
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const struct pcmcia_product nca_pcmcia_products[] = {
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{ PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
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PCMCIA_CIS_INVALID },
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};
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const size_t nca_pcmcia_nproducts =
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sizeof(nca_pcmcia_products) / sizeof(nca_pcmcia_products[0]);
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int
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nca_pcmcia_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct pcmcia_attach_args *pa = aux;
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if (pcmcia_product_lookup(pa, nca_pcmcia_products, nca_pcmcia_nproducts,
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sizeof(nca_pcmcia_products[0]), NULL))
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return (1);
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return (0);
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}
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int
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nca_pcmcia_validate_config(cfe)
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struct pcmcia_config_entry *cfe;
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{
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if (cfe->iftype != PCMCIA_IFTYPE_IO ||
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cfe->num_memspace != 0 ||
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cfe->num_iospace != 1)
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return (EINVAL);
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return (0);
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}
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void
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nca_pcmcia_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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struct nca_pcmcia_softc *esc = (void *)self;
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struct ncr5380_softc *sc = &esc->sc_ncr5380;
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struct pcmcia_attach_args *pa = aux;
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struct pcmcia_config_entry *cfe;
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struct pcmcia_function *pf = pa->pf;
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int flags;
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int error;
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esc->sc_pf = pf;
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error = pcmcia_function_configure(pf, nca_pcmcia_validate_config);
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if (error) {
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aprint_error("%s: configure failed, error=%d\n", self->dv_xname,
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error);
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return;
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}
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cfe = pf->cfe;
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sc->sc_regt = cfe->iospace[0].handle.iot;
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sc->sc_regh = cfe->iospace[0].handle.ioh;
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/* Initialize 5380 compatible register offsets. */
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sc->sci_r0 = C400_5380_REG_OFFSET + 0;
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sc->sci_r1 = C400_5380_REG_OFFSET + 1;
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sc->sci_r2 = C400_5380_REG_OFFSET + 2;
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sc->sci_r3 = C400_5380_REG_OFFSET + 3;
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sc->sci_r4 = C400_5380_REG_OFFSET + 4;
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sc->sci_r5 = C400_5380_REG_OFFSET + 5;
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sc->sci_r6 = C400_5380_REG_OFFSET + 6;
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sc->sci_r7 = C400_5380_REG_OFFSET + 7;
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sc->sc_rev = NCR_VARIANT_NCR53C400;
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/*
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* MD function pointers used by the MI code.
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*/
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sc->sc_pio_out = ncr5380_pio_out;
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sc->sc_pio_in = ncr5380_pio_in;
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sc->sc_dma_alloc = NULL;
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sc->sc_dma_free = NULL;
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sc->sc_dma_setup = NULL;
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sc->sc_dma_start = NULL;
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sc->sc_dma_poll = NULL;
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sc->sc_dma_eop = NULL;
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sc->sc_dma_stop = NULL;
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sc->sc_intr_on = NULL;
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sc->sc_intr_off = NULL;
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/*
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* Support the "options" (config file flags).
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* Disconnect/reselect is a per-target mask.
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* Interrupts and DMA are per-controller.
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*/
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#if 0
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flags = 0x0000; /* no options */
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#else
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flags = 0xffff; /* all options except force poll */
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#endif
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sc->sc_no_disconnect = (flags & NCA_NO_DISCONNECT);
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sc->sc_parity_disable = (flags & NCA_NO_PARITY_CHK) >> 8;
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sc->sc_min_dma_len = MIN_DMA_LEN;
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error = nca_pcmcia_enable(self, 1);
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if (error)
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goto fail;
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sc->sc_adapter.adapt_enable = nca_pcmcia_enable;
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sc->sc_adapter.adapt_refcnt = 1;
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ncr5380_attach(sc);
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scsipi_adapter_delref(&sc->sc_adapter);
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esc->sc_state = NCA_PCMCIA_ATTACHED;
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return;
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fail:
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pcmcia_function_unconfigure(pf);
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}
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int
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nca_pcmcia_detach(self, flags)
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struct device *self;
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int flags;
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{
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struct nca_pcmcia_softc *sc = (void *)self;
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int error;
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if (sc->sc_state != NCA_PCMCIA_ATTACHED)
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return (0);
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error = ncr5380_detach(&sc->sc_ncr5380, flags);
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if (error)
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return (error);
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pcmcia_function_unconfigure(sc->sc_pf);
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return (0);
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}
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int
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nca_pcmcia_enable(arg, onoff)
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struct device *arg;
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int onoff;
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{
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struct nca_pcmcia_softc *sc = (struct nca_pcmcia_softc*)arg;
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int error;
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if (onoff) {
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/* Establish the interrupt handler. */
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sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_BIO,
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ncr5380_intr, &sc->sc_ncr5380);
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if (!sc->sc_ih)
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return (EIO);
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error = pcmcia_function_enable(sc->sc_pf);
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if (error) {
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pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
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sc->sc_ih = 0;
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return (error);
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}
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/* Initialize only chip. */
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ncr5380_init(&sc->sc_ncr5380);
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} else {
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pcmcia_function_disable(sc->sc_pf);
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pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
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sc->sc_ih = 0;
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}
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return (0);
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}
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