NetBSD-5.0.2/sys/dev/pcmcia/nca_pcmcia.c
/* $NetBSD: nca_pcmcia.c,v 1.24 2008/04/28 20:23:56 martin Exp $ */
/*-
* Copyright (c) 2000, 2004 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.
*
* 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 1.24 2008/04/28 20:23:56 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/buf.h>
#include <sys/bus.h>
#include <sys/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_function *sc_pf; /* our PCMCIA function */
void *sc_ih; /* interrupt handler */
int sc_state;
#define NCA_PCMCIA_ATTACHED 3
};
int nca_pcmcia_match(device_t, cfdata_t, void *);
int nca_pcmcia_validate_config(struct pcmcia_config_entry *);
void nca_pcmcia_attach(device_t, device_t, void *);
int nca_pcmcia_detach(device_t, int);
int nca_pcmcia_enable(device_t, int);
CFATTACH_DECL_NEW(nca_pcmcia, sizeof(struct nca_pcmcia_softc),
nca_pcmcia_match, nca_pcmcia_attach, nca_pcmcia_detach, NULL);
#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[] = {
{ PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
PCMCIA_CIS_INVALID },
};
const size_t nca_pcmcia_nproducts =
__arraycount(nca_pcmcia_products);
int
nca_pcmcia_match(device_t parent, cfdata_t cf, void *aux)
{
struct pcmcia_attach_args *pa = aux;
if (pcmcia_product_lookup(pa, nca_pcmcia_products, nca_pcmcia_nproducts,
sizeof(nca_pcmcia_products[0]), NULL))
return 1;
return 0;
}
int
nca_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
{
if (cfe->iftype != PCMCIA_IFTYPE_IO ||
cfe->num_memspace != 0 ||
cfe->num_iospace != 1)
return EINVAL;
return 0;
}
void
nca_pcmcia_attach(device_t parent, device_t self, void *aux)
{
struct nca_pcmcia_softc *esc = device_private(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;
int flags;
int error;
sc->sc_dev = self;
esc->sc_pf = pf;
error = pcmcia_function_configure(pf, nca_pcmcia_validate_config);
if (error) {
aprint_error_dev(self, "configure failed, error=%d\n", error);
return;
}
cfe = pf->cfe;
sc->sc_regt = cfe->iospace[0].handle.iot;
sc->sc_regh = cfe->iospace[0].handle.ioh;
/* 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;
error = nca_pcmcia_enable(self, 1);
if (error)
goto fail;
sc->sc_adapter.adapt_enable = nca_pcmcia_enable;
sc->sc_adapter.adapt_refcnt = 1;
ncr5380_attach(sc);
scsipi_adapter_delref(&sc->sc_adapter);
esc->sc_state = NCA_PCMCIA_ATTACHED;
return;
fail:
pcmcia_function_unconfigure(pf);
}
int
nca_pcmcia_detach(device_t self, int flags)
{
struct nca_pcmcia_softc *sc = device_private(self);
int error;
if (sc->sc_state != NCA_PCMCIA_ATTACHED)
return 0;
error = ncr5380_detach(&sc->sc_ncr5380, flags);
if (error)
return error;
pcmcia_function_unconfigure(sc->sc_pf);
return 0;
}
int
nca_pcmcia_enable(device_t self, int onoff)
{
struct nca_pcmcia_softc *sc = device_private(self);
int error;
if (onoff) {
/* Establish the interrupt handler. */
sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_BIO,
ncr5380_intr, &sc->sc_ncr5380);
if (sc->sc_ih == NULL)
return EIO;
error = pcmcia_function_enable(sc->sc_pf);
if (error) {
pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
sc->sc_ih = 0;
return error;
}
/* Initialize only chip. */
ncr5380_init(&sc->sc_ncr5380);
} else {
pcmcia_function_disable(sc->sc_pf);
pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
sc->sc_ih = 0;
}
return 0;
}