/* $NetBSD: ahc_eisa.c,v 1.17 2000/01/26 06:41:11 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. * * from Id: aic7770.c,v 1.29 1996/05/30 07:18:52 gibbs Exp */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define AHC_EISA_SLOT_OFFSET 0xc00 #define AHC_EISA_IOSIZE 0x100 #define INTDEF 0x5cul /* Interrupt Definition Register */ /* * Under normal circumstances, these messages are unnecessary * and not terribly cosmetic. */ #ifdef DEBUG #define bootverbose 1 #else #define bootverbose 0 #endif int ahc_eisa_irq __P((bus_space_tag_t, bus_space_handle_t)); int ahc_eisa_match __P((struct device *, struct cfdata *, void *)); void ahc_eisa_attach __P((struct device *, struct device *, void *)); struct cfattach ahc_eisa_ca = { sizeof(struct ahc_data), ahc_eisa_match, ahc_eisa_attach }; /* * Return irq setting of the board, otherwise -1. */ int ahc_eisa_irq(iot, ioh) bus_space_tag_t iot; bus_space_handle_t ioh; { int irq; u_char intdef; ahc_reset("ahc_eisa", iot, ioh); intdef = bus_space_read_1(iot, ioh, INTDEF); switch (irq = (intdef & 0xf)) { 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 it's address (slot) and call * the actual probe routine to check it out. */ int ahc_eisa_match(parent, match, aux) struct device *parent; struct cfdata *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(parent, self, aux) struct device *parent, *self; void *aux; { ahc_type type; struct ahc_data *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; if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) + AHC_EISA_SLOT_OFFSET, AHC_EISA_IOSIZE, 0, &ioh)) panic("ahc_eisa_attach: could not 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; type = AHC_AIC7770; } else if (strcmp(ea->ea_idstring, "ADP7771") == 0) { model = EISA_PRODUCT_ADP7771; type = AHC_274; #if 0 } else if (strcmp(ea->ea_idstring, "ADP7756") == 0) { model = EISA_PRODUCT_ADP7756; type = AHC_284; } else if (strcmp(ea->ea_idstring, "ADP7757") == 0) { model = EISA_PRODUCT_ADP7757; type = AHC_284; #endif } else { panic("ahc_eisa_attach: Unknown device type %s\n", ea->ea_idstring); } printf(": %s\n", model); ahc_construct(ahc, iot, ioh, ea->ea_dmat, type, AHC_FNONE); 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. * usefull 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. */ switch( ahc->type ) { case AHC_AIC7770: case AHC_274: { u_char biosctrl = AHC_INB(ahc, HA_274_BIOSCTRL); /* Get the primary channel information */ ahc->flags |= (biosctrl & CHANNEL_B_PRIMARY); if((biosctrl & BIOSMODE) == BIOSDISABLED) ahc->flags |= AHC_USEDEFAULTS; break; } case AHC_284: { /* XXX * All values are automagically intialized at * POST for these cards, so we can always rely * on the Scratch Ram values. However, we should * read the SEEPROM here (Dan has the code to do * it) so we can say what kind of translation the * BIOS is using. Printing out the geometry could * save a lot of users the grief of failed installs. */ break; } default: break; } /* * 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 differenent 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, "; printf("%s: %s", 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; } /* * 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->sc_ih = eisa_intr_establish(ec, ih, ahc->pause & IRQMS ? IST_LEVEL : IST_EDGE, IPL_BIO, ahc_intr, ahc); if (ahc->sc_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); /* Attach sub-devices - always succeeds */ ahc_attach(ahc); }