304 lines
8.4 KiB
C
304 lines
8.4 KiB
C
/* $NetBSD: nca_pcmcia.c,v 1.6 2002/06/01 23:51:02 lukem Exp $ */
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/*-
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* Copyright (c) 2000 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 1.6 2002/06/01 23:51:02 lukem 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_io_handle sc_pcioh; /* PCMCIA i/o space info */
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int sc_io_window; /* our i/o window */
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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_flags;
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#define NCA_PCMCIA_ATTACHED 1 /* attach completed */
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#define NCA_PCMCIA_ATTACHING 2 /* attach in progress */
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};
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int nca_pcmcia_match __P((struct device *, struct cfdata *, void *));
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void nca_pcmcia_attach __P((struct device *, struct device *, void *));
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int nca_pcmcia_detach __P((struct device *, int));
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int nca_pcmcia_enable __P((struct device *, int));
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struct cfattach nca_pcmcia_ca = {
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sizeof(struct nca_pcmcia_softc), nca_pcmcia_match, nca_pcmcia_attach,
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nca_pcmcia_detach
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};
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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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{ NULL }
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};
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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,
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sizeof nca_pcmcia_products[0], NULL) != NULL)
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return (1);
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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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const struct pcmcia_product *pp;
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int flags;
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esc->sc_pf = pf;
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SIMPLEQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
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if (cfe->num_memspace != 0 ||
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cfe->num_iospace != 1)
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continue;
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if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start,
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cfe->iospace[0].length, 0, &esc->sc_pcioh) == 0)
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break;
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}
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if (cfe == 0) {
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printf(": can't alloc i/o space\n");
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goto no_config_entry;
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}
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/* Enable the card. */
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pcmcia_function_init(pf, cfe);
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if (pcmcia_function_enable(pf)) {
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printf(": function enable failed\n");
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goto enable_failed;
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}
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/* Map in the I/O space */
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if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, esc->sc_pcioh.size,
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&esc->sc_pcioh, &esc->sc_io_window)) {
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printf(": can't map i/o space\n");
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goto iomap_failed;
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}
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pp = pcmcia_product_lookup(pa, nca_pcmcia_products,
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sizeof nca_pcmcia_products[0], NULL);
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if (pp == NULL) {
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printf("\n");
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panic("nca_pcmcia_attach: impossible");
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}
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printf(": %s\n", pp->pp_name);
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/* We can enable and disable the controller. */
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sc->sc_adapter.adapt_enable = nca_pcmcia_enable;
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/* Reset into 5380-compat. mode */
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bus_space_write_1(esc->sc_pcioh.iot, esc->sc_pcioh.ioh, C400_CSR,
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C400_CSR_5380_ENABLE);
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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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/*
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* Initialize fields used by the MI code
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*/
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sc->sc_regt = esc->sc_pcioh.iot;
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sc->sc_regh = esc->sc_pcioh.ioh;
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/*
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* Initialize nca board itself.
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*/
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esc->sc_flags |= NCA_PCMCIA_ATTACHING;
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ncr5380_attach(sc);
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esc->sc_flags &= ~NCA_PCMCIA_ATTACHING;
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esc->sc_flags |= NCA_PCMCIA_ATTACHED;
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return;
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iomap_failed:
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/* Disable the device. */
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pcmcia_function_disable(esc->sc_pf);
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enable_failed:
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/* Unmap our I/O space. */
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pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh);
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no_config_entry:
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return;
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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 *esc = (void *)self;
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int error;
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if ((esc->sc_flags & NCA_PCMCIA_ATTACHED) == 0) {
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/* Nothing to detach. */
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return (0);
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}
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if ((error = ncr5380_detach(&esc->sc_ncr5380, flags)) != 0)
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return (error);
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/* Unmap our i/o window and i/o space. */
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pcmcia_io_unmap(esc->sc_pf, esc->sc_io_window);
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pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh);
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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 *esc = (struct nca_pcmcia_softc*)arg;
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if (onoff) {
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/* Establish the interrupt handler. */
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esc->sc_ih = pcmcia_intr_establish(esc->sc_pf, IPL_BIO,
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ncr5380_intr, &esc->sc_ncr5380);
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if (esc->sc_ih == NULL) {
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printf("%s: couldn't establish interrupt handler\n",
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esc->sc_ncr5380.sc_dev.dv_xname);
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return (EIO);
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}
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/*
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* If attach is in progress, we know that card power is
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* enabled and chip will be initialized later.
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* Otherwise, enable and reset now.
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*/
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if ((esc->sc_flags & NCA_PCMCIA_ATTACHING) == 0) {
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if (pcmcia_function_enable(esc->sc_pf)) {
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printf("%s: couldn't enable PCMCIA function\n",
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esc->sc_ncr5380.sc_dev.dv_xname);
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pcmcia_intr_disestablish(esc->sc_pf,
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esc->sc_ih);
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return (EIO);
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}
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/* Initialize only chip. */
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ncr5380_init(&esc->sc_ncr5380);
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}
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} else {
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pcmcia_function_disable(esc->sc_pf);
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pcmcia_intr_disestablish(esc->sc_pf, esc->sc_ih);
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}
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return (0);
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}
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