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[src/trunk]: src/sys Move MI PMAZ-A SCSI attachment to sys/dev/tc.
details: https://anonhg.NetBSD.org/src/rev/678e03421e35
branches: trunk
changeset: 515663:678e03421e35
user: simonb <simonb%NetBSD.org@localhost>
date: Mon Oct 01 10:17:25 2001 +0000
description:
Move MI PMAZ-A SCSI attachment to sys/dev/tc.
diffstat:
sys/arch/pmax/tc/asc_pmaz.c | 368 --------------------------------------------
sys/dev/tc/asc_tc.c | 368 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 368 insertions(+), 368 deletions(-)
diffs (truncated from 744 to 300 lines):
diff -r c50d61dfb415 -r 678e03421e35 sys/arch/pmax/tc/asc_pmaz.c
--- a/sys/arch/pmax/tc/asc_pmaz.c Mon Oct 01 09:26:29 2001 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,368 +0,0 @@
-/* $NetBSD: asc_pmaz.c,v 1.8 2001/08/26 11:47:25 simonb Exp $ */
-
-/*-
- * Copyright (c) 2000 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Tohru Nishimura.
- *
- * 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> /* RCS ID & Copyright macro defns */
-__KERNEL_RCSID(0, "$NetBSD: asc_pmaz.c,v 1.8 2001/08/26 11:47:25 simonb Exp $");
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/systm.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/scsipi/scsi_message.h>
-
-#include <machine/bus.h>
-
-#include <dev/ic/ncr53c9xreg.h>
-#include <dev/ic/ncr53c9xvar.h>
-
-#include <dev/tc/tcvar.h>
-
-struct asc_softc {
- struct ncr53c9x_softc sc_ncr53c9x; /* glue to MI code */
- bus_space_tag_t sc_bst;
- bus_space_handle_t sc_bsh;
- bus_dma_tag_t sc_dmat;
- bus_dmamap_t sc_dmamap;
- caddr_t *sc_dmaaddr;
- size_t *sc_dmalen;
- size_t sc_dmasize;
- int sc_active; /* DMA active ? */
- int sc_ispullup; /* DMA into main memory? */
-
- /* XXX XXX XXX */
- caddr_t sc_base, sc_bounce, sc_target;
-};
-
-static int asc_pmaz_match __P((struct device *, struct cfdata *, void *));
-static void asc_pmaz_attach __P((struct device *, struct device *, void *));
-
-struct cfattach asc_pmaz_ca = {
- sizeof(struct asc_softc), asc_pmaz_match, asc_pmaz_attach
-};
-
-static u_char asc_read_reg __P((struct ncr53c9x_softc *, int));
-static void asc_write_reg __P((struct ncr53c9x_softc *, int, u_char));
-static int asc_dma_isintr __P((struct ncr53c9x_softc *));
-static void asc_pmaz_reset __P((struct ncr53c9x_softc *));
-static int asc_pmaz_intr __P((struct ncr53c9x_softc *));
-static int asc_pmaz_setup __P((struct ncr53c9x_softc *, caddr_t *,
- size_t *, int, size_t *));
-static void asc_pmaz_go __P((struct ncr53c9x_softc *));
-static void asc_pmaz_stop __P((struct ncr53c9x_softc *));
-static int asc_dma_isactive __P((struct ncr53c9x_softc *));
-static void asc_clear_latched_intr __P((struct ncr53c9x_softc *));
-
-static struct ncr53c9x_glue asc_pmaz_glue = {
- asc_read_reg,
- asc_write_reg,
- asc_dma_isintr,
- asc_pmaz_reset,
- asc_pmaz_intr,
- asc_pmaz_setup,
- asc_pmaz_go,
- asc_pmaz_stop,
- asc_dma_isactive,
- asc_clear_latched_intr,
-};
-
-/*
- * Parameters specific to PMAZ-A TC option card.
- */
-#define PMAZ_OFFSET_53C94 0x0 /* from module base */
-#define PMAZ_OFFSET_DMAR 0x40000 /* DMA Address Register */
-#define PMAZ_OFFSET_RAM 0x80000 /* 128KB SRAM buffer */
-#define PMAZ_OFFSET_ROM 0xc0000 /* diagnostic ROM */
-
-#define PMAZ_RAM_SIZE 0x20000 /* 128k (32k*32) */
-#define PER_TGT_DMA_SIZE ((PMAZ_RAM_SIZE/7) & ~(sizeof(int)-1))
-
-#define PMAZ_DMAR_WRITE 0x80000000 /* DMA direction bit */
-#define PMAZ_DMAR_MASK 0x1ffff /* 17 bits, 128k */
-#define PMAZ_DMA_ADDR(x) ((unsigned long)(x) & PMAZ_DMAR_MASK)
-
-static int
-asc_pmaz_match(parent, cfdata, aux)
- struct device *parent;
- struct cfdata *cfdata;
- void *aux;
-{
- struct tc_attach_args *d = aux;
-
- if (strncmp("PMAZ-AA ", d->ta_modname, TC_ROM_LLEN))
- return (0);
-
- return (1);
-}
-
-static void
-asc_pmaz_attach(parent, self, aux)
- struct device *parent, *self;
- void *aux;
-{
- struct tc_attach_args *ta = aux;
- struct asc_softc *asc = (struct asc_softc *)self;
- struct ncr53c9x_softc *sc = &asc->sc_ncr53c9x;
-
- /*
- * Set up glue for MI code early; we use some of it here.
- */
- sc->sc_glue = &asc_pmaz_glue;
- asc->sc_bst = ta->ta_memt;
- asc->sc_dmat = ta->ta_dmat;
- if (bus_space_map(asc->sc_bst, ta->ta_addr,
- PMAZ_OFFSET_RAM + PMAZ_RAM_SIZE, 0, &asc->sc_bsh)) {
- printf("%s: unable to map device\n", sc->sc_dev.dv_xname);
- return;
- }
- asc->sc_base = (caddr_t)ta->ta_addr; /* XXX XXX XXX */
-
- tc_intr_establish(parent, ta->ta_cookie, IPL_BIO, ncr53c9x_intr, sc);
-
- sc->sc_id = 7;
- sc->sc_freq = (ta->ta_busspeed) ? 25000000 : 12500000;
-
- /* gimme Mhz */
- sc->sc_freq /= 1000000;
-
- /*
- * XXX More of this should be in ncr53c9x_attach(), but
- * XXX should we really poke around the chip that much in
- * XXX the MI code? Think about this more...
- */
-
- /*
- * Set up static configuration info.
- */
- sc->sc_cfg1 = sc->sc_id | NCRCFG1_PARENB;
- sc->sc_cfg2 = NCRCFG2_SCSI2;
- sc->sc_cfg3 = 0;
- sc->sc_rev = NCR_VARIANT_NCR53C94;
-
- /*
- * XXX minsync and maxxfer _should_ be set up in MI code,
- * XXX but it appears to have some dependency on what sort
- * XXX of DMA we're hooked up to, etc.
- */
-
- /*
- * This is the value used to start sync negotiations
- * Note that the NCR register "SYNCTP" is programmed
- * in "clocks per byte", and has a minimum value of 4.
- * The SCSI period used in negotiation is one-fourth
- * of the time (in nanoseconds) needed to transfer one byte.
- * Since the chip's clock is given in MHz, we have the following
- * formula: 4 * period = (1000 / freq) * 4
- */
- sc->sc_minsync = (1000 / sc->sc_freq) * 5 / 4;
-
- sc->sc_maxxfer = 64 * 1024;
-
- /* Do the common parts of attachment. */
- sc->sc_adapter.adapt_minphys = minphys;
- sc->sc_adapter.adapt_request = ncr53c9x_scsipi_request;
- ncr53c9x_attach(sc);
-}
-
-static void
-asc_pmaz_reset(sc)
- struct ncr53c9x_softc *sc;
-{
- struct asc_softc *asc = (struct asc_softc *)sc;
-
- asc->sc_active = 0;
-}
-
-static int
-asc_pmaz_intr(sc)
- struct ncr53c9x_softc *sc;
-{
- struct asc_softc *asc = (struct asc_softc *)sc;
- int trans, resid;
-
- resid = 0;
- if (!asc->sc_ispullup &&
- (resid = (NCR_READ_REG(sc, NCR_FFLAG) & NCRFIFO_FF)) != 0) {
- NCR_DMA(("pmaz_intr: empty FIFO of %d ", resid));
- DELAY(1);
- }
-
- resid += NCR_READ_REG(sc, NCR_TCL);
- resid += NCR_READ_REG(sc, NCR_TCM) << 8;
-
- trans = asc->sc_dmasize - resid;
-
- if (asc->sc_ispullup)
- memcpy(asc->sc_target, asc->sc_bounce, trans);
- *asc->sc_dmalen -= trans;
- *asc->sc_dmaaddr += trans;
- asc->sc_active = 0;
-
- return (0);
-}
-
-static int
-asc_pmaz_setup(sc, addr, len, datain, dmasize)
- struct ncr53c9x_softc *sc;
- caddr_t *addr;
- size_t *len;
- int datain;
- size_t *dmasize;
-{
- struct asc_softc *asc = (struct asc_softc *)sc;
- u_int32_t tc_dmar;
- size_t size;
-
- asc->sc_dmaaddr = addr;
- asc->sc_dmalen = len;
- asc->sc_ispullup = datain;
-
- NCR_DMA(("pmaz_setup: start %ld@%p, %s\n", (long)*asc->sc_dmalen,
- *asc->sc_dmaaddr, datain ? "IN" : "OUT"));
-
- size = *dmasize;
- if (size > PER_TGT_DMA_SIZE)
- size = PER_TGT_DMA_SIZE;
- *dmasize = asc->sc_dmasize = size;
-
- NCR_DMA(("pmaz_setup: dmasize = %ld\n", (long)asc->sc_dmasize));
-
- asc->sc_bounce = asc->sc_base + PMAZ_OFFSET_RAM;
- asc->sc_bounce += PER_TGT_DMA_SIZE *
- sc->sc_nexus->xs->xs_periph->periph_target;
- asc->sc_target = *addr;
-
- if (!asc->sc_ispullup)
- memcpy(asc->sc_bounce, asc->sc_target, size);
-
-#if 1
- if (asc->sc_ispullup)
- tc_dmar = PMAZ_DMA_ADDR(asc->sc_bounce);
- else
- tc_dmar = PMAZ_DMAR_WRITE | PMAZ_DMA_ADDR(asc->sc_bounce);
- bus_space_write_4(asc->sc_bst, asc->sc_bsh, PMAZ_OFFSET_DMAR, tc_dmar);
- asc->sc_active = 1;
-#endif
- return (0);
-}
-
-static void
-asc_pmaz_go(sc)
- struct ncr53c9x_softc *sc;
-{
-#if 0
- struct asc_softc *asc = (struct asc_softc *)sc;
- u_int32_t tc_dmar;
-
- if (asc->sc_ispullup)
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