/* $OpenBSD: ahc_eisa.c,v 1.24 2021/03/07 06:18:48 jsg Exp $ */ /* $NetBSD: ahc_eisa.c,v 1.10 1996/10/21 22:30:58 thorpej Exp $ */ /* * Product specific probe and attach routines for: * 27/284X and aic7770 motherboard SCSI controllers * * Copyright (c) 1994, 1995, 1996 Justin T. Gibbs. * All rights reserved. * * 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 immediately at the beginning of the file, without modification, * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * * $Id: ahc_eisa.c,v 1.24 2021/03/07 06:18:48 jsg Exp $ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #define AHC_EISA_SLOT_OFFSET 0xc00 #define AHC_EISA_IOSIZE 0x100 int ahc_eisa_irq(bus_space_tag_t, bus_space_handle_t); int ahc_eisa_match(struct device *, void *, void *); void ahc_eisa_attach(struct device *, struct device *, void *); struct cfattach ahc_eisa_ca = { sizeof(struct ahc_softc), ahc_eisa_match, ahc_eisa_attach }; /* * Return irq setting of the board, otherwise -1. */ int ahc_eisa_irq(bus_space_tag_t iot, bus_space_handle_t ioh) { int irq; u_char intdef; u_char hcntrl; /* Pause the card preserving the IRQ type */ hcntrl = bus_space_read_1(iot, ioh, HCNTRL) & IRQMS; bus_space_write_1(iot, ioh, HCNTRL, hcntrl | PAUSE); intdef = bus_space_read_1(iot, ioh, INTDEF); switch (irq = (intdef & VECTOR)) { case 9: case 10: case 11: case 12: case 14: case 15: break; default: printf("ahc_eisa_irq: illegal irq setting %d\n", intdef); return -1; } /* Note that we are going and return (to probe) */ return irq; } /* * Check the slots looking for a board we recognise * If we find one, note its address (slot) and call * the actual probe routine to check it out. */ int ahc_eisa_match(struct device *parent, void *match, void *aux) { struct eisa_attach_args *ea = aux; bus_space_tag_t iot = ea->ea_iot; bus_space_handle_t ioh; int irq; /* must match one of our known ID strings */ if (strcmp(ea->ea_idstring, "ADP7770") && strcmp(ea->ea_idstring, "ADP7771") #if 0 && strcmp(ea->ea_idstring, "ADP7756") /* not EISA, but VL */ && strcmp(ea->ea_idstring, "ADP7757") /* not EISA, but VL */ #endif ) return (0); if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) + AHC_EISA_SLOT_OFFSET, AHC_EISA_IOSIZE, 0, &ioh)) return (0); irq = ahc_eisa_irq(iot, ioh); bus_space_unmap(iot, ioh, AHC_EISA_IOSIZE); return (irq >= 0); } void ahc_eisa_attach(struct device *parent, struct device *self, void *aux) { struct ahc_softc *ahc = (void *)self; struct eisa_attach_args *ea = aux; bus_space_tag_t iot = ea->ea_iot; bus_space_handle_t ioh; int irq; eisa_chipset_tag_t ec = ea->ea_ec; eisa_intr_handle_t ih; const char *model, *intrstr; u_int biosctrl; u_int scsiconf; u_int scsiconf1; u_int intdef; int i; ahc_set_name(ahc, ahc->sc_dev.dv_xname); ahc_set_unit(ahc, ahc->sc_dev.dv_unit); /* set dma tags */ ahc->parent_dmat = ea->ea_dmat; if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) + AHC_EISA_SLOT_OFFSET, AHC_EISA_IOSIZE, 0, &ioh)) panic("ahc_eisa_attach: can't map i/o addresses"); if ((irq = ahc_eisa_irq(iot, ioh)) < 0) panic("ahc_eisa_attach: ahc_eisa_irq failed!"); if (strcmp(ea->ea_idstring, "ADP7770") == 0) { model = EISA_PRODUCT_ADP7770; } else if (strcmp(ea->ea_idstring, "ADP7771") == 0) { model = EISA_PRODUCT_ADP7771; } else { panic("ahc_eisa_attach: Unknown device type %s", ea->ea_idstring); } printf(": %s\n", model); /* * Instead of ahc_alloc() as in FreeBSD, do the few relevant * initializations manually. */ LIST_INIT(&ahc->pending_scbs); for (i = 0; i < AHC_NUM_TARGETS; i++) TAILQ_INIT(&ahc->untagged_queues[i]); /* * SCSI_IS_SCSIBUS_B() must returns false until sc_channel_b * has been properly initialized. */ ahc->sc_child_b = NULL; ahc->channel = 'A'; ahc->chip = AHC_AIC7770|AHC_EISA; ahc->features = AHC_AIC7770_FE; ahc->bugs |= AHC_TMODE_WIDEODD_BUG; ahc->flags |= AHC_PAGESCBS; ahc->tag = iot; ahc->bsh = ioh; ahc->bus_chip_init = ahc_chip_init; ahc->instruction_ram_size = 512; if (ahc_softc_init(ahc) != 0) return; if (ahc_reset(ahc, /*reinit*/FALSE) != 0) return; /* See if we are edge triggered */ intdef = ahc_inb(ahc, INTDEF); if ((intdef & EDGE_TRIG) != 0) ahc->flags |= AHC_EDGE_INTERRUPT; if (eisa_intr_map(ec, irq, &ih)) { printf("%s: couldn't map interrupt (%d)\n", ahc->sc_dev.dv_xname, irq); return; } /* * Tell the user what type of interrupts we're using. * useful for debugging irq problems */ if (bootverbose) { printf("%s: Using %s Interrupts\n", ahc_name(ahc), ahc->pause & IRQMS ? "Level Sensitive" : "Edge Triggered"); } /* * Now that we know we own the resources we need, do the * card initialization. * * First, the aic7770 card specific setup. */ biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL); scsiconf = ahc_inb(ahc, SCSICONF); scsiconf1 = ahc_inb(ahc, SCSICONF + 1); /* Get the primary channel information */ if ((biosctrl & CHANNEL_B_PRIMARY) != 0) ahc->flags |= AHC_PRIMARY_CHANNEL; if ((biosctrl & BIOSMODE) == BIOSDISABLED) { ahc->flags |= AHC_USEDEFAULTS; } else if ((ahc->features & AHC_WIDE) != 0) { ahc->our_id = scsiconf1 & HWSCSIID; if (scsiconf & TERM_ENB) ahc->flags |= AHC_TERM_ENB_A; } else { ahc->our_id = scsiconf & HSCSIID; ahc->our_id_b = scsiconf1 & HSCSIID; if (scsiconf & TERM_ENB) ahc->flags |= AHC_TERM_ENB_A; if (scsiconf1 & TERM_ENB) ahc->flags |= AHC_TERM_ENB_B; } /* * We have no way to tell, so assume extended * translation is enabled. */ ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B; /* * See if we have a Rev E or higher aic7770. Anything below a * Rev E will have a R/O autoflush disable configuration bit. * It's still not clear exactly what is different about the Rev E. * We think it allows 8 bit entries in the QOUTFIFO to support * "paging" SCBs so you can have more than 4 commands active at * once. */ { char *id_string; u_char sblkctl; u_char sblkctl_orig; sblkctl_orig = ahc_inb(ahc, SBLKCTL); sblkctl = sblkctl_orig ^ AUTOFLUSHDIS; ahc_outb(ahc, SBLKCTL, sblkctl); sblkctl = ahc_inb(ahc, SBLKCTL); if (sblkctl != sblkctl_orig) { id_string = "aic7770 >= Rev E"; /* * Ensure autoflush is enabled */ sblkctl &= ~AUTOFLUSHDIS; ahc_outb(ahc, SBLKCTL, sblkctl); /* Allow paging on this adapter */ ahc->flags |= AHC_PAGESCBS; } else id_string = "aic7770 <= Rev C"; if (bootverbose) printf("%s: %s\n", ahc_name(ahc), id_string); } /* Setup the FIFO threshold and the bus off time */ { u_char hostconf = ahc_inb(ahc, HOSTCONF); ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH); ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF); } /* * Generic aic7xxx initialization. */ if (ahc_init(ahc)) { ahc_free(ahc); return; } /* * Link this softc in with all other ahc instances. */ ahc_softc_insert(ahc); /* * Enable the board's BUS drivers */ ahc_outb(ahc, BCTL, ENABLE); intrstr = eisa_intr_string(ec, ih); /* * The IRQMS bit enables level sensitive interrupts only allow * IRQ sharing if its set. */ ahc->ih = eisa_intr_establish(ec, ih, ahc->pause & IRQMS ? IST_LEVEL : IST_EDGE, IPL_BIO, ahc_platform_intr, ahc, ahc->sc_dev.dv_xname); if (ahc->ih == NULL) { printf("%s: couldn't establish interrupt", ahc->sc_dev.dv_xname); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); ahc_free(ahc); return; } if (intrstr != NULL) printf("%s: interrupting at %s\n", ahc->sc_dev.dv_xname, intrstr); ahc_intr_enable(ahc, TRUE); /* Attach sub-devices - always succeeds */ ahc_attach(ahc); }