NetBSD/sys/dev/pcmcia/nca_pcmcia.c

304 lines
8.4 KiB
C

/* $NetBSD: nca_pcmcia.c,v 1.6 2002/06/01 23:51:02 lukem Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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 <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: nca_pcmcia.c,v 1.6 2002/06/01 23:51:02 lukem Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/buf.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/scsipi/scsi_all.h>
#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsiconf.h>
#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciavar.h>
#include <dev/pcmcia/pcmciadevs.h>
#include <dev/ic/ncr5380reg.h>
#include <dev/ic/ncr5380var.h>
#include <dev/ic/ncr53c400reg.h>
struct nca_pcmcia_softc {
struct ncr5380_softc sc_ncr5380; /* glue to MI code */
/* PCMCIA-specific goo. */
struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */
int sc_io_window; /* our i/o window */
struct pcmcia_function *sc_pf; /* our PCMCIA function */
void *sc_ih; /* interrupt handler */
int sc_flags;
#define NCA_PCMCIA_ATTACHED 1 /* attach completed */
#define NCA_PCMCIA_ATTACHING 2 /* attach in progress */
};
int nca_pcmcia_match __P((struct device *, struct cfdata *, void *));
void nca_pcmcia_attach __P((struct device *, struct device *, void *));
int nca_pcmcia_detach __P((struct device *, int));
int nca_pcmcia_enable __P((struct device *, int));
struct cfattach nca_pcmcia_ca = {
sizeof(struct nca_pcmcia_softc), nca_pcmcia_match, nca_pcmcia_attach,
nca_pcmcia_detach
};
#define MIN_DMA_LEN 128
/* Options for disconnect/reselect, DMA, and interrupts. */
#define NCA_NO_DISCONNECT 0x00ff
#define NCA_NO_PARITY_CHK 0xff00
const struct pcmcia_product nca_pcmcia_products[] = {
{ NULL }
};
int
nca_pcmcia_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct pcmcia_attach_args *pa = aux;
if (pcmcia_product_lookup(pa, nca_pcmcia_products,
sizeof nca_pcmcia_products[0], NULL) != NULL)
return (1);
return (0);
}
void
nca_pcmcia_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct nca_pcmcia_softc *esc = (void *)self;
struct ncr5380_softc *sc = &esc->sc_ncr5380;
struct pcmcia_attach_args *pa = aux;
struct pcmcia_config_entry *cfe;
struct pcmcia_function *pf = pa->pf;
const struct pcmcia_product *pp;
int flags;
esc->sc_pf = pf;
SIMPLEQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
if (cfe->num_memspace != 0 ||
cfe->num_iospace != 1)
continue;
if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start,
cfe->iospace[0].length, 0, &esc->sc_pcioh) == 0)
break;
}
if (cfe == 0) {
printf(": can't alloc i/o space\n");
goto no_config_entry;
}
/* Enable the card. */
pcmcia_function_init(pf, cfe);
if (pcmcia_function_enable(pf)) {
printf(": function enable failed\n");
goto enable_failed;
}
/* Map in the I/O space */
if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 0, esc->sc_pcioh.size,
&esc->sc_pcioh, &esc->sc_io_window)) {
printf(": can't map i/o space\n");
goto iomap_failed;
}
pp = pcmcia_product_lookup(pa, nca_pcmcia_products,
sizeof nca_pcmcia_products[0], NULL);
if (pp == NULL) {
printf("\n");
panic("nca_pcmcia_attach: impossible");
}
printf(": %s\n", pp->pp_name);
/* We can enable and disable the controller. */
sc->sc_adapter.adapt_enable = nca_pcmcia_enable;
/* Reset into 5380-compat. mode */
bus_space_write_1(esc->sc_pcioh.iot, esc->sc_pcioh.ioh, C400_CSR,
C400_CSR_5380_ENABLE);
/* Initialize 5380 compatible register offsets. */
sc->sci_r0 = C400_5380_REG_OFFSET + 0;
sc->sci_r1 = C400_5380_REG_OFFSET + 1;
sc->sci_r2 = C400_5380_REG_OFFSET + 2;
sc->sci_r3 = C400_5380_REG_OFFSET + 3;
sc->sci_r4 = C400_5380_REG_OFFSET + 4;
sc->sci_r5 = C400_5380_REG_OFFSET + 5;
sc->sci_r6 = C400_5380_REG_OFFSET + 6;
sc->sci_r7 = C400_5380_REG_OFFSET + 7;
sc->sc_rev = NCR_VARIANT_NCR53C400;
/*
* MD function pointers used by the MI code.
*/
sc->sc_pio_out = ncr5380_pio_out;
sc->sc_pio_in = ncr5380_pio_in;
sc->sc_dma_alloc = NULL;
sc->sc_dma_free = NULL;
sc->sc_dma_setup = NULL;
sc->sc_dma_start = NULL;
sc->sc_dma_poll = NULL;
sc->sc_dma_eop = NULL;
sc->sc_dma_stop = NULL;
sc->sc_intr_on = NULL;
sc->sc_intr_off = NULL;
/*
* Support the "options" (config file flags).
* Disconnect/reselect is a per-target mask.
* Interrupts and DMA are per-controller.
*/
#if 0
flags = 0x0000; /* no options */
#else
flags = 0xffff; /* all options except force poll */
#endif
sc->sc_no_disconnect = (flags & NCA_NO_DISCONNECT);
sc->sc_parity_disable = (flags & NCA_NO_PARITY_CHK) >> 8;
sc->sc_min_dma_len = MIN_DMA_LEN;
/*
* Initialize fields used by the MI code
*/
sc->sc_regt = esc->sc_pcioh.iot;
sc->sc_regh = esc->sc_pcioh.ioh;
/*
* Initialize nca board itself.
*/
esc->sc_flags |= NCA_PCMCIA_ATTACHING;
ncr5380_attach(sc);
esc->sc_flags &= ~NCA_PCMCIA_ATTACHING;
esc->sc_flags |= NCA_PCMCIA_ATTACHED;
return;
iomap_failed:
/* Disable the device. */
pcmcia_function_disable(esc->sc_pf);
enable_failed:
/* Unmap our I/O space. */
pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh);
no_config_entry:
return;
}
int
nca_pcmcia_detach(self, flags)
struct device *self;
int flags;
{
struct nca_pcmcia_softc *esc = (void *)self;
int error;
if ((esc->sc_flags & NCA_PCMCIA_ATTACHED) == 0) {
/* Nothing to detach. */
return (0);
}
if ((error = ncr5380_detach(&esc->sc_ncr5380, flags)) != 0)
return (error);
/* Unmap our i/o window and i/o space. */
pcmcia_io_unmap(esc->sc_pf, esc->sc_io_window);
pcmcia_io_free(esc->sc_pf, &esc->sc_pcioh);
return (0);
}
int
nca_pcmcia_enable(arg, onoff)
struct device *arg;
int onoff;
{
struct nca_pcmcia_softc *esc = (struct nca_pcmcia_softc*)arg;
if (onoff) {
/* Establish the interrupt handler. */
esc->sc_ih = pcmcia_intr_establish(esc->sc_pf, IPL_BIO,
ncr5380_intr, &esc->sc_ncr5380);
if (esc->sc_ih == NULL) {
printf("%s: couldn't establish interrupt handler\n",
esc->sc_ncr5380.sc_dev.dv_xname);
return (EIO);
}
/*
* If attach is in progress, we know that card power is
* enabled and chip will be initialized later.
* Otherwise, enable and reset now.
*/
if ((esc->sc_flags & NCA_PCMCIA_ATTACHING) == 0) {
if (pcmcia_function_enable(esc->sc_pf)) {
printf("%s: couldn't enable PCMCIA function\n",
esc->sc_ncr5380.sc_dev.dv_xname);
pcmcia_intr_disestablish(esc->sc_pf,
esc->sc_ih);
return (EIO);
}
/* Initialize only chip. */
ncr5380_init(&esc->sc_ncr5380);
}
} else {
pcmcia_function_disable(esc->sc_pf);
pcmcia_intr_disestablish(esc->sc_pf, esc->sc_ih);
}
return (0);
}