/* $NetBSD: csc.c,v 1.19 2014/01/21 19:50:40 christos 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. * * 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 __KERNEL_RCSID(0, "$NetBSD: csc.c,v 1.19 2014/01/21 19:50:40 christos Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int cscmatch(device_t, cfdata_t, void *); void cscattach(device_t, device_t, void *); CFATTACH_DECL_NEW(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(device_t parent, cfdata_t cf, void *aux) { struct podule_attach_args *pa = aux; /* 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(device_t parent, device_t self, void *aux) { struct csc_softc *sc = device_private(self); struct podule_attach_args *pa; csc_regmap_p rp = &sc->sc_regmap; vu_char *fas; int loop; pa = aux; 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_dev = self; 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 = self; 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, device_xname(self), "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", device_xname(self)); #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(self, &sc->sc_softc.sc_channel, scsiprint); } int csc_intr(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(struct sfas_softc *sc, void *ptr) { return; } /* Set DMA transfer counter */ void csc_set_dma_tc(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(struct sfas_softc *sc, int mode) { } /* Initialize DMA for transfer */ int csc_setup_dma(void *sc, void *ptr, int len, int mode) { return (0); } /* Check if address and len is ok for DMA transfer */ int csc_need_bump(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(void *sc, void *chain, void *p, int l) { return(0); } /* Turn on/off led */ void csc_led(void *v, int mode) { struct sfas_softc *sc = v; if (mode) { sc->sc_led_status++; } else { if (sc->sc_led_status) sc->sc_led_status--; } }