7d4a1addde
The IOMD/VIDC combination is now moved to arch/arm/iomd together. These files still need a lot of cleaning up :( .... esp. the RC7500 support that is still dormant in it; this needs either to be removed or split out for RC7500's ``VIDC'' video/audio variant. Apart from the RC7500 support wich is still in arch/arm32 the iomd,vidc,riscpc and podulebus subdirectories of arch/arm32 can be removed. This split still uses some small parts of arch/arm32 .... those are the MI parts that haven't been moved yet. RiscPC/A7000 have been tested and confirmed to build as should NC.
230 lines
6.9 KiB
C
230 lines
6.9 KiB
C
/* $NetBSD: csa.c,v 1.1 2001/10/05 22:27:55 reinoud Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Mark Brinicombe of Causality Limited.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Cumana SCSI 1 driver using the generic NCR5380 driver
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/device.h>
|
|
#include <sys/buf.h>
|
|
#include <dev/scsipi/scsi_all.h>
|
|
#include <dev/scsipi/scsipi_all.h>
|
|
#include <dev/scsipi/scsiconf.h>
|
|
|
|
#include <dev/ic/ncr5380reg.h>
|
|
#include <dev/ic/ncr5380var.h>
|
|
|
|
#include <machine/io.h>
|
|
#include <machine/irqhandler.h>
|
|
#include <machine/bootconfig.h>
|
|
|
|
#include <acorn32/podulebus/podulebus.h>
|
|
#include <dev/podulebus/podules.h>
|
|
#include <dev/podulebus/powerromreg.h>
|
|
|
|
#define CSA_NCR5380_OFFSET 0x2100
|
|
#define CSA_CTRL_OFFSET 0x2000 - 2308
|
|
#define CSA_DIRWRITE 0x02
|
|
#define CSA_DIRREAD 0x00
|
|
#define CSA_16BITS 0x00
|
|
#define CSA_8BITS 0x10
|
|
#define CSA_XXX 0x40
|
|
#define CSA_DATA_OFFSET 0x2000
|
|
#define CSA_INTR_OFFSET 0x2000
|
|
#define CSA_INTR_MASK 0x80
|
|
#define CSA_STAT_OFFSET 0x2004
|
|
#define CSA_STAT_DRQ 0x40
|
|
#define CSA_STAT_END 0x80
|
|
|
|
void csa_attach __P((struct device *, struct device *, void *));
|
|
int csa_match __P((struct device *, struct cfdata *, void *));
|
|
|
|
/*
|
|
* Cumana SCSI 1 softc structure.
|
|
*
|
|
* Contains the generic ncr5380 device node, podule information and global information
|
|
* required by the driver.
|
|
*/
|
|
|
|
struct csa_softc {
|
|
struct ncr5380_softc sc_ncr5380;
|
|
void *sc_ih;
|
|
struct evcnt sc_intrcnt;
|
|
int sc_podule_number;
|
|
podule_t *sc_podule;
|
|
volatile u_char *sc_irqstatus;
|
|
u_char sc_irqmask;
|
|
volatile u_char *sc_ctrl;
|
|
volatile u_char *sc_status;
|
|
volatile u_char *sc_data;
|
|
};
|
|
|
|
struct cfattach csa_ca = {
|
|
sizeof(struct csa_softc), csa_match, csa_attach
|
|
};
|
|
|
|
int csa_intr __P((void *arg));
|
|
|
|
/*
|
|
* Card probe function
|
|
*
|
|
* Just match the manufacturer and podule ID's
|
|
*/
|
|
|
|
int
|
|
csa_match(parent, cf, aux)
|
|
struct device *parent;
|
|
struct cfdata *cf;
|
|
void *aux;
|
|
{
|
|
struct podule_attach_args *pa = aux;
|
|
|
|
if (matchpodule(pa, MANUFACTURER_CUMANA, PODULE_CUMANA_SCSI1, -1))
|
|
return(1);
|
|
|
|
/* PowerROM */
|
|
if (pa->pa_product == PODULE_ALSYSTEMS_SCSI &&
|
|
podulebus_initloader(pa) == 0 &&
|
|
(podloader_callloader(pa, 0, 0) == PRID_CUMANA_SCSI1_8 ||
|
|
podloader_callloader(pa, 0, 0) == PRID_CUMANA_SCSI1_16))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Card attach function
|
|
*
|
|
*/
|
|
|
|
void
|
|
csa_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct csa_softc *sc = (struct csa_softc *)self;
|
|
struct podule_attach_args *pa = aux;
|
|
u_char *iobase;
|
|
char hi_option[sizeof(sc->sc_ncr5380.sc_dev.dv_xname) + 8];
|
|
|
|
/* Note the podule number and validate */
|
|
|
|
if (pa->pa_podule_number == -1)
|
|
panic("Podule has disappeared !");
|
|
|
|
sc->sc_podule_number = pa->pa_podule_number;
|
|
sc->sc_podule = pa->pa_podule;
|
|
podules[sc->sc_podule_number].attached = 1;
|
|
|
|
sc->sc_ncr5380.sc_flags |= NCR5380_FORCE_POLLING;
|
|
sc->sc_ncr5380.sc_min_dma_len = 0;
|
|
sc->sc_ncr5380.sc_no_disconnect = 0x00;
|
|
sc->sc_ncr5380.sc_parity_disable = 0x00;
|
|
|
|
sc->sc_ncr5380.sc_dma_alloc = NULL;
|
|
sc->sc_ncr5380.sc_dma_free = NULL;
|
|
sc->sc_ncr5380.sc_dma_poll = NULL;
|
|
sc->sc_ncr5380.sc_dma_setup = NULL;
|
|
sc->sc_ncr5380.sc_dma_start = NULL;
|
|
sc->sc_ncr5380.sc_dma_eop = NULL;
|
|
sc->sc_ncr5380.sc_dma_stop = NULL;
|
|
sc->sc_ncr5380.sc_intr_on = NULL;
|
|
sc->sc_ncr5380.sc_intr_off = NULL;
|
|
|
|
iobase = (u_char *)pa->pa_podule->slow_base + CSA_NCR5380_OFFSET;
|
|
sc->sc_ncr5380.sci_r0 = iobase + 0;
|
|
sc->sc_ncr5380.sci_r1 = iobase + 4;
|
|
sc->sc_ncr5380.sci_r2 = iobase + 8;
|
|
sc->sc_ncr5380.sci_r3 = iobase + 12;
|
|
sc->sc_ncr5380.sci_r4 = iobase + 16;
|
|
sc->sc_ncr5380.sci_r5 = iobase + 20;
|
|
sc->sc_ncr5380.sci_r6 = iobase + 24;
|
|
sc->sc_ncr5380.sci_r7 = iobase + 28;
|
|
|
|
sc->sc_ncr5380.sc_rev = NCR_VARIANT_NCR5380;
|
|
|
|
sc->sc_ctrl = (u_char *)pa->pa_podule->slow_base + CSA_CTRL_OFFSET;
|
|
sc->sc_status = (u_char *)pa->pa_podule->slow_base + CSA_STAT_OFFSET;
|
|
sc->sc_data = (u_char *)pa->pa_podule->slow_base + CSA_DATA_OFFSET;
|
|
|
|
sc->sc_ncr5380.sc_pio_in = ncr5380_pio_in;
|
|
sc->sc_ncr5380.sc_pio_out = ncr5380_pio_out;
|
|
|
|
/* Provide an override for the host id */
|
|
sc->sc_ncr5380.sc_channel.chan_id = 7;
|
|
sprintf(hi_option, "%s.hostid", sc->sc_ncr5380.sc_dev.dv_xname);
|
|
(void)get_bootconf_option(boot_args, hi_option,
|
|
BOOTOPT_TYPE_INT, &sc->sc_ncr5380.sc_channel.chan_id);
|
|
sc->sc_ncr5380.sc_adapter.adapt_minphys = minphys;
|
|
|
|
printf(": host=%d, using 8 bit PIO",
|
|
sc->sc_ncr5380.sc_channel.chan_id);
|
|
|
|
sc->sc_irqstatus = (u_char *)pa->pa_podule->slow_base + CSA_INTR_OFFSET;
|
|
sc->sc_irqmask = CSA_INTR_MASK;
|
|
|
|
evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL,
|
|
self->dv_xname, "intr");
|
|
sc->sc_ih = podulebus_irq_establish(pa->pa_ih, IPL_BIO, csa_intr, sc,
|
|
&sc->sc_intrcnt);
|
|
if (sc->sc_ih == NULL)
|
|
sc->sc_ncr5380.sc_flags |= NCR5380_FORCE_POLLING;
|
|
|
|
if (sc->sc_ncr5380.sc_flags & NCR5380_FORCE_POLLING)
|
|
printf(", polling");
|
|
printf("\n");
|
|
*sc->sc_ctrl = 0;
|
|
|
|
ncr5380_attach(&sc->sc_ncr5380);
|
|
}
|
|
|
|
int
|
|
csa_intr(arg)
|
|
void *arg;
|
|
{
|
|
struct csa_softc *sc = arg;
|
|
|
|
if ((*sc->sc_irqstatus) & sc->sc_irqmask)
|
|
(void)ncr5380_intr(&sc->sc_ncr5380);
|
|
|
|
return(0);
|
|
}
|