/* * Copyright (c) 1994 Michael L. Hitch * 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, 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 Christian E. Hopps. * 4. 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 ``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 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: zthreebus.c,v 1.0 */ #include #include #include #include #include #include #include struct aconfdata { char *name; int manid; int prodid; }; struct preconfdata { int manid; int prodid; caddr_t vaddr; }; /* * explain the names.. 0123456789 => zothfisven */ static struct aconfdata aconftab[] = { /* MacroSystemsUS */ { "wesc", 2203, 19}, /* Warp engine */ { "grfrtblt", 18260, 16}, /* Retina BLT Z3 */ /* Commodore Amiga */ { "afsc", 514, 84} /* A4091 SCSI HD Controller */ }; static int naconfent = sizeof(aconftab) / sizeof(struct aconfdata); /* * Anything listed in this table is subject to pre-configuration, * if autoconf.c:config_console() calls amiga_config_found() on * the Zorro III device. */ static struct preconfdata preconftab[] = { /* Retina BLT Z3 */ { 18260, 16, 0 } }; static int npreconfent = sizeof(preconftab) / sizeof(struct preconfdata); void zthreeattach __P((struct device *, struct device *, void *)); int zthreeprint __P((void *, char *)); int zthreematch __P((struct device *, struct cfdata *,void *)); caddr_t zthreemap __P((caddr_t, u_int)); static char *aconflookup __P((int, int)); /* * given a manufacturer id and product id, find the name * that describes this board. */ static char * aconflookup(mid, pid) int mid, pid; { struct aconfdata *adp, *eadp; eadp = &aconftab[naconfent]; for (adp = aconftab; adp < eadp; adp++) if (adp->manid == mid && adp->prodid == pid) return(adp->name); return("board"); } /* * zorro three bus driver */ struct cfdriver zthreebuscd = { NULL, "zthreebus", zthreematch, zthreeattach, DV_DULL, sizeof(struct device), NULL, 0 }; static struct cfdata *early_cfdata; /*ARGSUSED*/ int zthreematch(pdp, cfp, auxp) struct device *pdp; struct cfdata *cfp; void *auxp; { if (matchname(auxp, "zthreebus") == 0) return(0); if (amiga_realconfig == 0) early_cfdata = cfp; return(1); } /* * called to attach bus, we probe, i.e., scan configdev structs passed * in, for each found name call config_found() which will do this again * with that driver if matched else print a diag. * * If called during config_console() (i.e., amiga_realconfig == 0), skip * everything but the approved devices in preconftab, and when doing * those devices save the allocated virtual address. */ void zthreeattach(pdp, dp, auxp) struct device *pdp, *dp; void *auxp; { struct zthreebus_args za; struct preconfdata *pcp, *epcp; struct cfdev *cdp, *ecdp; epcp = &preconftab[npreconfent]; ecdp = &cfdev[ncfdev]; if (amiga_realconfig) { if (ZTHREEAVAIL) printf(": i/o size 0x%08x", ZTHREEAVAIL); printf("\n"); } for (cdp = cfdev; cdp < ecdp; cdp++) { for (pcp = preconftab; pcp < epcp; pcp++) { if (pcp->manid == cdp->rom.manid && pcp->prodid == cdp->rom.prodid) break; } if (amiga_realconfig == 0 && pcp >= epcp) continue; za.pa = cdp->addr; za.size = cdp->size; if (amiga_realconfig && pcp < epcp && pcp->vaddr) za.va = pcp->vaddr; else { /* * check that its from zorro III space * (board type = Zorro III and not memory) */ if ((cdp->rom.type & 0xe0) != 0x80) continue; za.va = (void *)(iszthreepa(za.pa) ? zthreemap(za.pa, za.size) : 0); /* * save value if early console init */ if (amiga_realconfig == 0) pcp->vaddr = za.va; } za.manid = cdp->rom.manid; za.prodid = cdp->rom.prodid; za.serno = cdp->rom.serno; za.slot = (((u_long)za.pa >> 16) & 0xF) - 0x9; amiga_config_found(early_cfdata, dp, &za, zthreeprint); } } /* * print configuration info. */ int zthreeprint(auxp, pnp) void *auxp; char *pnp; { struct zthreebus_args *zap; int rv; rv = UNCONF; zap = auxp; if (pnp) { printf("%s at %s", aconflookup(zap->manid, zap->prodid), pnp); if (zap->manid == -1) rv = UNSUPP; } printf(" rom 0x%x man/pro %d/%d", zap->pa, zap->manid, zap->prodid); return(rv); } /* * this function is used to map Z3 physical addresses into kernel virtual * addresses. We don't keep track which address we map where, we don't NEED * to know this. We made sure in amiga_init.c (by scanning all available Z3 * devices) to have enough kva-space available, so there is no extra range * check done here. */ caddr_t zthreemap (pa, size) caddr_t pa; u_int size; { static vm_offset_t nextkva = 0; vm_offset_t kva; if (nextkva == 0) nextkva = ZTHREEADDR; if (nextkva > ZTHREEADDR + ZTHREEAVAIL) return 0; /* size better be an integral multiple of the page size... */ kva = nextkva; nextkva += size; if (nextkva > ZTHREEADDR + ZTHREEAVAIL) panic("allocating too much Zorro III address space"); physaccess((caddr_t)kva, (caddr_t)pa, size, PG_RW|PG_CI); return((caddr_t)kva); }