224 lines
6.4 KiB
C
224 lines
6.4 KiB
C
/* $NetBSD: fdc_pcmcia.c,v 1.5 2001/11/13 07:26:32 lukem Exp $ */
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/*-
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* Copyright (c) 1998 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 Christos Zoulas.
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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: fdc_pcmcia.c,v 1.5 2001/11/13 07:26:32 lukem Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <sys/disk.h>
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#include <sys/buf.h>
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#include <machine/bus.h>
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#include <machine/conf.h>
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#include <machine/intr.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/fdcreg.h>
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#include <dev/ic/fdcvar.h>
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struct fdc_pcmcia_softc {
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struct fdc_softc sc_fdc; /* real "fdc" softc */
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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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};
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int fdc_pcmcia_probe __P((struct device *, struct cfdata *, void *));
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void fdc_pcmcia_attach __P((struct device *, struct device *, void *));
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static void fdc_conf __P((struct fdc_softc *));
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struct cfattach fdc_pcmcia_ca = {
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sizeof(struct fdc_pcmcia_softc), fdc_pcmcia_probe, fdc_pcmcia_attach
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};
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static void
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fdc_conf(fdc)
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struct fdc_softc *fdc;
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{
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bus_space_tag_t iot = fdc->sc_iot;
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bus_space_handle_t ioh = fdc->sc_ioh;
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int n;
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/* Figure out what we have */
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if (out_fdc_cmd(iot, ioh, FDC_CMD_VERSION) == -1 ||
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(n = fdcresult(fdc, 1)) != 1)
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return;
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/* Nec765 or equivalent */
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if (FDC_ST0(fdc->sc_status[0]) == FDC_ST0_INVL)
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return;
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#if 0
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/* ns8477 check */
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if (out_fdc_cmd(iot, ioh, FDC_CMD_NSC) == -1 ||
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(n = fdcresult(fdc, 1)) != 1) {
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printf("NSC command failed\n");
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return;
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}
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else
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printf("Version %x\n", fdc->sc_status[0]);
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#endif
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if (out_fdc_cmd(iot, ioh, FDC_CMD_DUMPREG) == -1 ||
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(n = fdcresult(fdc, -1)) == -1)
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return;
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/*
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* Expect 10 bytes of status; one means that it did not
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* understand the command
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*/
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if (n == 1)
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return;
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/*
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* Configure controller to use FIFO and 8 bytes of FIFO threshold
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*/
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(void)out_fdc_cmd(iot, ioh, FDC_CMD_CONFIGURE);
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(void)out_fdc(iot, ioh, 0x00); /* doc says 0 */
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(void)out_fdc(iot, ioh, 8); /* FIFO is active low. */
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(void)out_fdc(iot, ioh, fdc->sc_status[9]); /* same comp */
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/* No result phase */
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/* Lock this configuration */
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if (out_fdc_cmd(iot, ioh, FDC_CMD_LOCK(FDC_CMD_FLAGS_LOCK)) == -1 ||
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fdcresult(fdc, 1) != 1)
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return;
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}
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int
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fdc_pcmcia_probe(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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struct pcmcia_card *card = pa->card;
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char *cis[4] = PCMCIA_CIS_YEDATA_EXTERNAL_FDD;
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/* For this card the manufacturer and product are -1 */
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if (strcmp(cis[0], card->cis1_info[0]) == 0 &&
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strcmp(cis[1], card->cis1_info[1]) == 0)
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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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fdc_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 fdc_pcmcia_softc *psc = (void *)self;
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struct fdc_softc *fdc = &psc->sc_fdc;
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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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struct fdc_attach_args fa;
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psc->sc_pf = pf;
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for (cfe = SIMPLEQ_FIRST(&pf->cfe_head); cfe != NULL;
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cfe = SIMPLEQ_NEXT(cfe, 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, cfe->iospace[0].length,
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&psc->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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return;
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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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return;
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}
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/* Map in the io space */
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if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, psc->sc_pcioh.size,
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&psc->sc_pcioh, &psc->sc_io_window)) {
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printf(": can't map i/o space\n");
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return;
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}
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fdc->sc_iot = psc->sc_pcioh.iot;
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fdc->sc_ioh = psc->sc_pcioh.ioh;
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fdc->sc_flags = FDC_HEADSETTLE;
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fdc->sc_state = DEVIDLE;
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TAILQ_INIT(&fdc->sc_drives);
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if (!fdcfind(fdc->sc_iot, fdc->sc_ioh, 1))
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printf(": coundn't find fdc\n%s", fdc->sc_dev.dv_xname);
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printf(": %s\n", PCMCIA_STR_YEDATA_EXTERNAL_FDD);
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fdc_conf(fdc);
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/* Establish the interrupt handler. */
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fdc->sc_ih = pcmcia_intr_establish(pa->pf, IPL_BIO, fdchwintr, fdc);
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if (fdc->sc_ih == NULL)
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printf("%s: couldn't establish interrupt\n",
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fdc->sc_dev.dv_xname);
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/* physical limit: four drives per controller. */
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for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) {
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if (fa.fa_drive < 2)
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fa.fa_deftype = &fd_types[0];
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else
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fa.fa_deftype = NULL; /* unknown */
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(void)config_found(self, (void *)&fa, fdprint);
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}
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}
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