340 lines
9.5 KiB
C
340 lines
9.5 KiB
C
/* $NetBSD: csc.c,v 1.8 2000/06/29 08:53:02 mrg Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Scott Stevens.
|
|
*
|
|
* 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-2 driver uses the SFAS216 generic driver
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/device.h>
|
|
#include <dev/scsipi/scsi_all.h>
|
|
#include <dev/scsipi/scsipi_all.h>
|
|
#include <dev/scsipi/scsiconf.h>
|
|
#include <uvm/uvm_extern.h>
|
|
#include <machine/pmap.h>
|
|
#include <machine/io.h>
|
|
#include <machine/irqhandler.h>
|
|
#include <machine/bootconfig.h>
|
|
#include <arm32/podulebus/podulebus.h>
|
|
#include <arm32/podulebus/sfasreg.h>
|
|
#include <arm32/podulebus/sfasvar.h>
|
|
#include <arm32/podulebus/cscreg.h>
|
|
#include <arm32/podulebus/cscvar.h>
|
|
#include <arm32/podulebus/podules.h>
|
|
|
|
void cscattach __P((struct device *, struct device *, void *));
|
|
int cscmatch __P((struct device *, struct cfdata *, void *));
|
|
int csc_scsicmd __P((struct scsipi_xfer *));
|
|
|
|
struct scsipi_device csc_scsidev = {
|
|
NULL, /* use default error handler */
|
|
NULL, /* do not have a start functio */
|
|
NULL, /* have no async handler */
|
|
NULL, /* Use default done routine */
|
|
};
|
|
|
|
struct cfattach csc_ca = {
|
|
sizeof(struct csc_softc), cscmatch, cscattach
|
|
};
|
|
|
|
int csc_intr __P((void *arg));
|
|
int csc_setup_dma __P((struct sfas_softc *sc, void *ptr, int len,
|
|
int mode));
|
|
int csc_build_dma_chain __P((struct sfas_softc *sc,
|
|
struct sfas_dma_chain *chain, void *p, int l));
|
|
int csc_need_bump __P((struct sfas_softc *sc, void *ptr, int len));
|
|
void csc_led __P((struct sfas_softc *sc, int mode));
|
|
|
|
/*
|
|
* if we are a Cumana SCSI-2 card
|
|
*/
|
|
int
|
|
cscmatch(pdp, cf, auxp)
|
|
struct device *pdp;
|
|
struct cfdata *cf;
|
|
void *auxp;
|
|
{
|
|
struct podule_attach_args *pa = (struct podule_attach_args *)auxp;
|
|
|
|
/* Look for the card */
|
|
if (matchpodule(pa, MANUFACTURER_CUMANA, PODULE_CUMANA_SCSI2, -1) == 0)
|
|
return(0);
|
|
|
|
return(1);
|
|
}
|
|
|
|
void
|
|
cscattach(pdp, dp, auxp)
|
|
struct device *pdp;
|
|
struct device *dp;
|
|
void *auxp;
|
|
{
|
|
struct csc_softc *sc = (struct csc_softc *)dp;
|
|
struct podule_attach_args *pa;
|
|
csc_regmap_p rp = &sc->sc_regmap;
|
|
vu_char *fas;
|
|
int loop;
|
|
|
|
pa = (struct podule_attach_args *)auxp;
|
|
|
|
if (pa->pa_podule_number == -1)
|
|
panic("Podule has disappeared !");
|
|
|
|
sc->sc_specific.sc_podule_number = pa->pa_podule_number;
|
|
sc->sc_specific.sc_podule = pa->pa_podule;
|
|
sc->sc_specific.sc_iobase =
|
|
(vu_char *)sc->sc_specific.sc_podule->mod_base;
|
|
|
|
rp->status0 = &sc->sc_specific.sc_iobase[CSC_STATUS0];
|
|
rp->alatch = &sc->sc_specific.sc_iobase[CSC_ALATCH];
|
|
rp->dack = (vu_short *)&sc->sc_specific.sc_iobase[CSC_DACK];
|
|
fas = &sc->sc_specific.sc_iobase[CSC_FAS_OFFSET_BASE];
|
|
|
|
rp->FAS216.sfas_tc_low = &fas[CSC_FAS_OFFSET_TCL];
|
|
rp->FAS216.sfas_tc_mid = &fas[CSC_FAS_OFFSET_TCM];
|
|
rp->FAS216.sfas_fifo = &fas[CSC_FAS_OFFSET_FIFO];
|
|
rp->FAS216.sfas_command = &fas[CSC_FAS_OFFSET_COMMAND];
|
|
rp->FAS216.sfas_dest_id = &fas[CSC_FAS_OFFSET_DESTID];
|
|
rp->FAS216.sfas_timeout = &fas[CSC_FAS_OFFSET_TIMEOUT];
|
|
rp->FAS216.sfas_syncper = &fas[CSC_FAS_OFFSET_PERIOD];
|
|
rp->FAS216.sfas_syncoff = &fas[CSC_FAS_OFFSET_OFFSET];
|
|
rp->FAS216.sfas_config1 = &fas[CSC_FAS_OFFSET_CONFIG1];
|
|
rp->FAS216.sfas_clkconv = &fas[CSC_FAS_OFFSET_CLKCONV];
|
|
rp->FAS216.sfas_test = &fas[CSC_FAS_OFFSET_TEST];
|
|
rp->FAS216.sfas_config2 = &fas[CSC_FAS_OFFSET_CONFIG2];
|
|
rp->FAS216.sfas_config3 = &fas[CSC_FAS_OFFSET_CONFIG3];
|
|
rp->FAS216.sfas_tc_high = &fas[CSC_FAS_OFFSET_TCH];
|
|
rp->FAS216.sfas_fifo_bot = &fas[CSC_FAS_OFFSET_FIFOBOT];
|
|
|
|
sc->sc_softc.sc_fas = (sfas_regmap_p)rp;
|
|
sc->sc_softc.sc_spec = &sc->sc_specific;
|
|
|
|
sc->sc_softc.sc_led = csc_led;
|
|
|
|
sc->sc_softc.sc_setup_dma = csc_setup_dma;
|
|
sc->sc_softc.sc_build_dma_chain = csc_build_dma_chain;
|
|
sc->sc_softc.sc_need_bump = csc_need_bump;
|
|
|
|
sc->sc_softc.sc_clock_freq = 8; /* Cumana runs at 8MHz */
|
|
sc->sc_softc.sc_timeout = 250; /* Set default timeout to 250ms */
|
|
sc->sc_softc.sc_config_flags = SFAS_NO_DMA /*| SFAS_NF_DEBUG*/;
|
|
sc->sc_softc.sc_host_id = 7; /* Should check the jumpers */
|
|
|
|
sc->sc_softc.sc_bump_sz = NBPG;
|
|
sc->sc_softc.sc_bump_pa = 0x0;
|
|
|
|
sfasinitialize((struct sfas_softc *)sc);
|
|
|
|
sc->sc_softc.sc_adapter.scsipi_cmd = csc_scsicmd;
|
|
sc->sc_softc.sc_adapter.scsipi_minphys = sfas_minphys;
|
|
|
|
sc->sc_softc.sc_link.scsipi_scsi.channel = SCSI_CHANNEL_ONLY_ONE;
|
|
sc->sc_softc.sc_link.adapter_softc = sc;
|
|
sc->sc_softc.sc_link.scsipi_scsi.adapter_target = sc->sc_softc.sc_host_id;
|
|
sc->sc_softc.sc_link.adapter = &sc->sc_softc.sc_adapter;
|
|
sc->sc_softc.sc_link.device = &csc_scsidev;
|
|
sc->sc_softc.sc_link.openings = 1;
|
|
sc->sc_softc.sc_link.scsipi_scsi.max_target = 7;
|
|
sc->sc_softc.sc_link.scsipi_scsi.max_lun = 7;
|
|
sc->sc_softc.sc_link.type = BUS_SCSI;
|
|
|
|
/* Provide an override for the host id */
|
|
(void)get_bootconf_option(boot_args, "csc.hostid",
|
|
BOOTOPT_TYPE_INT, &sc->sc_softc.sc_link.scsipi_scsi.adapter_target);
|
|
|
|
printf(" host=%d", sc->sc_softc.sc_link.scsipi_scsi.adapter_target);
|
|
|
|
sc->sc_softc.sc_ih.ih_func = csc_intr;
|
|
sc->sc_softc.sc_ih.ih_arg = &sc->sc_softc;
|
|
sc->sc_softc.sc_ih.ih_level = IPL_BIO;
|
|
sc->sc_softc.sc_ih.ih_name = "scsi: csc";
|
|
sc->sc_softc.sc_ih.ih_maskaddr = sc->sc_specific.sc_podule->irq_addr;
|
|
sc->sc_softc.sc_ih.ih_maskbits = sc->sc_specific.sc_podule->irq_mask;
|
|
|
|
/* initialise the alatch */
|
|
sc->sc_specific.sc_alatch_defs = (CSC_POLL?0:CSC_ALATCH_DEFS_INTEN);
|
|
for (loop = 0; loop < 8; loop ++) {
|
|
if(loop != 3)
|
|
*rp->alatch = (loop << 1) |
|
|
((sc->sc_specific.sc_alatch_defs & (1 << loop))?1:0);
|
|
}
|
|
|
|
#if CSC_POLL == 0
|
|
if (irq_claim(IRQ_PODULE, &sc->sc_softc.sc_ih))
|
|
panic("%s: Cannot install IRQ handler\n", dp->dv_xname);
|
|
#else
|
|
printf(" polling");
|
|
#endif
|
|
printf("\n");
|
|
|
|
/* attach all scsi units on us */
|
|
config_found(dp, &sc->sc_softc.sc_link, scsiprint);
|
|
}
|
|
|
|
|
|
int
|
|
csc_intr(arg)
|
|
void *arg;
|
|
{
|
|
struct sfas_softc *dev = arg;
|
|
csc_regmap_p rp;
|
|
int quickints;
|
|
|
|
rp = (csc_regmap_p)dev->sc_fas;
|
|
|
|
if (*rp->FAS216.sfas_status & SFAS_STAT_INTERRUPT_PENDING) {
|
|
quickints = 16;
|
|
do {
|
|
dev->sc_status = *rp->FAS216.sfas_status;
|
|
dev->sc_interrupt = *rp->FAS216.sfas_interrupt;
|
|
|
|
if (dev->sc_interrupt & SFAS_INT_RESELECTED) {
|
|
dev->sc_resel[0] = *rp->FAS216.sfas_fifo;
|
|
dev->sc_resel[1] = *rp->FAS216.sfas_fifo;
|
|
}
|
|
sfasintr(dev);
|
|
|
|
} while((*rp->FAS216.sfas_status & SFAS_STAT_INTERRUPT_PENDING)
|
|
&& --quickints);
|
|
}
|
|
|
|
return(0); /* Pass interrupt on down the chain */
|
|
}
|
|
|
|
/* Load transfer address into dma register */
|
|
void
|
|
csc_set_dma_adr(sc, ptr)
|
|
struct sfas_softc *sc;
|
|
void *ptr;
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* Set DMA transfer counter */
|
|
void
|
|
csc_set_dma_tc(sc, len)
|
|
struct sfas_softc *sc;
|
|
unsigned int len;
|
|
{
|
|
*sc->sc_fas->sfas_tc_low = len; len >>= 8;
|
|
*sc->sc_fas->sfas_tc_mid = len; len >>= 8;
|
|
*sc->sc_fas->sfas_tc_high = len;
|
|
}
|
|
|
|
/* Set DMA mode */
|
|
void
|
|
csc_set_dma_mode(sc, mode)
|
|
struct sfas_softc *sc;
|
|
int mode;
|
|
{
|
|
}
|
|
|
|
/* Initialize DMA for transfer */
|
|
int
|
|
csc_setup_dma(sc, ptr, len, mode)
|
|
struct sfas_softc *sc;
|
|
void *ptr;
|
|
int len;
|
|
int mode;
|
|
{
|
|
return(0);
|
|
}
|
|
|
|
/* Check if address and len is ok for DMA transfer */
|
|
int
|
|
csc_need_bump(sc, ptr, len)
|
|
struct sfas_softc *sc;
|
|
void *ptr;
|
|
int len;
|
|
{
|
|
int p;
|
|
|
|
p = (int)ptr & 0x03;
|
|
|
|
if (p) {
|
|
p = 4-p;
|
|
|
|
if (len < 256)
|
|
p = len;
|
|
}
|
|
|
|
return(p);
|
|
}
|
|
|
|
/* Interrupt driven routines */
|
|
int
|
|
csc_build_dma_chain(sc, chain, p, l)
|
|
struct sfas_softc *sc;
|
|
struct sfas_dma_chain *chain;
|
|
void *p;
|
|
int l;
|
|
{
|
|
return(0);
|
|
}
|
|
|
|
/* Turn on/off led */
|
|
void
|
|
csc_led(sc, mode)
|
|
struct sfas_softc *sc;
|
|
int mode;
|
|
{
|
|
csc_regmap_p rp;
|
|
|
|
rp = (csc_regmap_p)sc->sc_fas;
|
|
|
|
if (mode) {
|
|
sc->sc_led_status++;
|
|
} else {
|
|
if (sc->sc_led_status)
|
|
sc->sc_led_status--;
|
|
}
|
|
}
|
|
|
|
int
|
|
csc_scsicmd(xs)
|
|
struct scsipi_xfer *xs;
|
|
{
|
|
/* ensure command is polling for the moment */
|
|
#if CSC_POLL > 0
|
|
xs->xs_control |= XS_CTL_POLL;
|
|
#endif
|
|
return(sfas_scsicmd(xs));
|
|
}
|