/* $NetBSD: csa.c,v 1.10 2008/04/28 20:23:10 martin 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. * * 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 __KERNEL_RCSID(0, "$NetBSD: csa.c,v 1.10 2008/04/28 20:23:10 martin Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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 int csa_match(device_t, cfdata_t, void *); void csa_attach(device_t, device_t, 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 uint8_t *sc_irqstatus; uint8_t sc_irqmask; volatile uint8_t *sc_ctrl; volatile uint8_t *sc_status; volatile uint8_t *sc_data; }; CFATTACH_DECL_NEW(csa, sizeof(struct csa_softc), csa_match, csa_attach, NULL, NULL); int csa_intr(void *arg); /* * Card probe function * * Just match the manufacturer and podule ID's */ int csa_match(device_t parent, cfdata_t cf, void *aux) { struct podule_attach_args *pa = aux; if (pa->pa_product == PODULE_CUMANA_SCSI1) 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(device_t parent, device_t self, void *aux) { struct csa_softc *sc = device_private(self); struct ncr5380_softc *ncr_sc = &sc->sc_ncr5380; struct podule_attach_args *pa = aux; uint8_t *iobase; char hi_option[sizeof(self->dv_xname) + 8]; ncr_sc->sc_dev = self; /* 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; ncr_sc->sc_flags |= NCR5380_FORCE_POLLING; ncr_sc->sc_min_dma_len = 0; ncr_sc->sc_no_disconnect = 0x00; ncr_sc->sc_parity_disable = 0x00; ncr_sc->sc_dma_alloc = NULL; ncr_sc->sc_dma_free = NULL; ncr_sc->sc_dma_poll = NULL; ncr_sc->sc_dma_setup = NULL; ncr_sc->sc_dma_start = NULL; ncr_sc->sc_dma_eop = NULL; ncr_sc->sc_dma_stop = NULL; ncr_sc->sc_intr_on = NULL; ncr_sc->sc_intr_off = NULL; iobase = (uint8_t *)pa->pa_podule->slow_base + CSA_NCR5380_OFFSET; ncr_sc->sci_r0 = iobase + 0; ncr_sc->sci_r1 = iobase + 4; ncr_sc->sci_r2 = iobase + 8; ncr_sc->sci_r3 = iobase + 12; ncr_sc->sci_r4 = iobase + 16; ncr_sc->sci_r5 = iobase + 20; ncr_sc->sci_r6 = iobase + 24; ncr_sc->sci_r7 = iobase + 28; ncr_sc->sc_rev = NCR_VARIANT_NCR5380; sc->sc_ctrl = (uint8_t *)pa->pa_podule->slow_base + CSA_CTRL_OFFSET; sc->sc_status = (uint8_t *)pa->pa_podule->slow_base + CSA_STAT_OFFSET; sc->sc_data = (uint8_t *)pa->pa_podule->slow_base + CSA_DATA_OFFSET; ncr_sc->sc_pio_in = ncr5380_pio_in; ncr_sc->sc_pio_out = ncr5380_pio_out; /* Provide an override for the host id */ ncr_sc->sc_channel.chan_id = 7; sprintf(hi_option, "%s.hostid", device_xname(self)); (void)get_bootconf_option(boot_args, hi_option, BOOTOPT_TYPE_INT, &ncr_sc->sc_channel.chan_id); ncr_sc->sc_adapter.adapt_minphys = minphys; aprint_normal(": host=%d, using 8 bit PIO", ncr_sc->sc_channel.chan_id); sc->sc_irqstatus = (uint8_t *)pa->pa_podule->slow_base + CSA_INTR_OFFSET; sc->sc_irqmask = CSA_INTR_MASK; evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, device_xname(self), "intr"); sc->sc_ih = podulebus_irq_establish(pa->pa_ih, IPL_BIO, csa_intr, sc, &sc->sc_intrcnt); if (sc->sc_ih == NULL) ncr_sc->sc_flags |= NCR5380_FORCE_POLLING; if (ncr_sc->sc_flags & NCR5380_FORCE_POLLING) aprint_normal(", polling"); aprint_normal("\n"); *sc->sc_ctrl = 0; ncr5380_attach(ncr_sc); } int csa_intr(void *arg) { struct csa_softc *sc = arg; if ((*sc->sc_irqstatus) & sc->sc_irqmask) (void)ncr5380_intr(&sc->sc_ncr5380); return 0; }