/* $NetBSD: csc.c,v 1.10 2003/04/01 02:13:53 thorpej 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int cscmatch(struct device *, struct cfdata *, void *); void cscattach(struct device *, struct device *, void *); CFATTACH_DECL(csc, sizeof(struct csc_softc), cscmatch, cscattach, NULL, NULL); int csc_intr(void *); int csc_setup_dma(void *, void *, int, int); int csc_build_dma_chain(void *, void *, void *, int); int csc_need_bump(void *, void *, int); void csc_led(void *, int); void csc_set_dma_adr(struct sfas_softc *, void *); void csc_set_dma_tc(struct sfas_softc *, unsigned int); void csc_set_dma_mode(struct sfas_softc *, int); /* * 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 (pa->pa_product == PODULE_CUMANA_SCSI2) return 1; /* PowerROM */ if (pa->pa_product == PODULE_ALSYSTEMS_SCSI && podulebus_initloader(pa) == 0 && podloader_callloader(pa, 0, 0) == PRID_CUMANA_SCSI2) return 1; return 0; } 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 = PAGE_SIZE; sc->sc_softc.sc_bump_pa = 0x0; sfasinitialize((struct sfas_softc *)sc); sc->sc_softc.sc_adapter.adapt_dev = &sc->sc_softc.sc_dev; sc->sc_softc.sc_adapter.adapt_nchannels = 1; sc->sc_softc.sc_adapter.adapt_openings = 7; sc->sc_softc.sc_adapter.adapt_max_periph = 1; sc->sc_softc.sc_adapter.adapt_ioctl = NULL; sc->sc_softc.sc_adapter.adapt_minphys = sfas_minphys; sc->sc_softc.sc_adapter.adapt_request = sfas_scsi_request; sc->sc_softc.sc_channel.chan_adapter = &sc->sc_softc.sc_adapter; sc->sc_softc.sc_channel.chan_bustype = &scsi_bustype; sc->sc_softc.sc_channel.chan_channel = 0; sc->sc_softc.sc_channel.chan_ntargets = 8; sc->sc_softc.sc_channel.chan_nluns = 8; sc->sc_softc.sc_channel.chan_id = sc->sc_softc.sc_host_id; /* Provide an override for the host id */ (void)get_bootconf_option(boot_args, "csc.hostid", BOOTOPT_TYPE_INT, &sc->sc_softc.sc_channel.chan_id); printf(": host=%d", sc->sc_softc.sc_channel.chan_id); /* 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 evcnt_attach_dynamic(&sc->sc_softc.sc_intrcnt, EVCNT_TYPE_INTR, NULL, dp->dv_xname, "intr"); sc->sc_softc.sc_ih = podulebus_irq_establish(pa->pa_ih, IPL_BIO, csc_intr, &sc->sc_softc, &sc->sc_softc.sc_intrcnt); if (sc->sc_softc.sc_ih == NULL) panic("%s: Cannot install IRQ handler", dp->dv_xname); #else printf(" polling"); sc->sc_softc.sc_adapter.adapt_flags |= SCSIPI_ADAPT_POLL_ONLY; #endif printf("\n"); /* attach all scsi units on us */ config_found(dp, &sc->sc_softc.sc_channel, 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) void *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) void *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) void *sc; void *chain; void *p; int l; { return(0); } /* Turn on/off led */ void csc_led(v, mode) void *v; int mode; { struct sfas_softc *sc = v; 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--; } }