/*- * Copyright (c) 1993, 1994 Charles Hannum. * Copyright (c) 1991 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * 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 the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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: @(#)isa.c 7.2 (Berkeley) 5/13/91 * $Id: isa.c,v 1.55.2.2 1994/10/11 09:46:36 mycroft Exp $ */ /* * Code to manage AT bus */ #include #include #include #include #include #include #include #include #include #include #include /* sorry, has to be here, no place else really suitable */ #include u_short *Crtat = (u_short *)MONO_BUF; /* * Configure all ISA devices * * XXX This code is a hack. It wants to be new config, but can't be until the * interrupt system is redone. For now, we do some gross hacks to make it look * 99% like new config. */ static char *msgs[3] = { "", " not configured\n", " unsupported\n" }; struct cfdata * config_search(fn, parent, aux) cfmatch_t fn; struct device *parent; void *aux; { struct cfdata *cf = 0; struct device *dv = 0; size_t devsize; struct cfdriver *cd; struct isa_device *id, *idp = parent ? (void *)parent->dv_cfdata->cf_loc : 0; for (id = isa_devtab; id->id_driver; id++) { if (id->id_state == FSTATE_FOUND) continue; if (id->id_parent != idp) continue; cd = id->id_driver; if (id->id_unit < cd->cd_ndevs) { if (cd->cd_devs[id->id_unit] != 0) continue; } else { int old = cd->cd_ndevs, new; void **nsp; if (old == 0) new = MINALLOCSIZE / sizeof(void *); else new = old * 2; while (new <= id->id_unit) new *= 2; cd->cd_ndevs = new; nsp = malloc(new * sizeof(void *), M_DEVBUF, M_NOWAIT); if (nsp == 0) panic("config_search: %sing dev array", old != 0 ? "expand" : "creat"); bzero(nsp + old, (new - old) * sizeof(void *)); if (old != 0) { bcopy(cd->cd_devs, nsp, old * sizeof(void *)); free(cd->cd_devs, M_DEVBUF); } cd->cd_devs = nsp; } if (!cf) { cf = malloc(sizeof(struct cfdata), M_DEVBUF, M_NOWAIT); if (!cf) panic("config_search: creating cfdata"); } cf->cf_driver = cd; cf->cf_unit = id->id_unit; cf->cf_fstate = 0; cf->cf_loc = (void *)id; cf->cf_flags = id->id_flags; cf->cf_parents = 0; cf->cf_ivstubs = 0; if (dv && devsize != cd->cd_devsize) { free(dv, M_DEVBUF); dv = 0; } if (!dv) { devsize = cd->cd_devsize; dv = malloc(devsize, M_DEVBUF, M_NOWAIT); if (!dv) panic("config_search: creating softc"); } bzero(dv, cd->cd_devsize); dv->dv_class = cd->cd_class; dv->dv_cfdata = cf; dv->dv_unit = id->id_unit; sprintf(dv->dv_xname, "%s%d", cd->cd_name, id->id_unit); dv->dv_parent = parent; cd->cd_devs[id->id_unit] = dv; if (fn) { if ((*fn)(parent, dv, aux)) return cf; } else { if ((*cd->cd_match)(parent, dv, aux)) return cf; } cd->cd_devs[id->id_unit] = 0; } if (cf) free(cf, M_DEVBUF); if (dv) free(dv, M_DEVBUF); return 0; } void config_attach(parent, cf, aux, print) struct device *parent; struct cfdata *cf; void *aux; cfprint_t print; { struct isa_device *id = (void *)cf->cf_loc; struct cfdriver *cd = cf->cf_driver; struct device *dv = cd->cd_devs[id->id_unit]; cf->cf_fstate = id->id_state = FSTATE_FOUND; printf("%s at %s", dv->dv_xname, parent ? parent->dv_xname : "isa0"); if (print) (void) (*print)(aux, (char *)0); (*cd->cd_attach)(parent, dv, aux); } int config_found(parent, aux, print) struct device *parent; void *aux; cfprint_t print; { struct cfdata *cf; if ((cf = config_search((cfmatch_t)NULL, parent, aux)) != NULL) { config_attach(parent, cf, aux, print); return 1; } if (print) printf(msgs[(*print)(aux, parent->dv_xname)]); return 0; } int isaprint(aux, isa) void *aux; char *isa; { struct isa_attach_args *ia = aux; if (ia->ia_iosize) printf(" port 0x%x", ia->ia_iobase); if (ia->ia_iosize > 1) printf("-0x%x", ia->ia_iobase + ia->ia_iosize - 1); if (ia->ia_msize) printf(" iomem 0x%x", ia->ia_maddr - atdevbase + 0xa0000); if (ia->ia_msize > 1) printf("-0x%x", ia->ia_maddr - atdevbase + 0xa0000 + ia->ia_msize - 1); if (ia->ia_irq) printf(" irq %d", ffs(ia->ia_irq) - 1); if (ia->ia_drq != (u_short)-1) printf(" drq %d", ia->ia_drq); /* XXXX print flags */ return QUIET; } int isasubmatch(parent, self, aux) struct device *parent, *self; void *aux; { struct isa_device *id = (void *)self->dv_cfdata->cf_loc; struct isa_attach_args ia; ia.ia_iobase = id->id_iobase; ia.ia_iosize = 0x666; ia.ia_irq = id->id_irq; ia.ia_drq = id->id_drq; ia.ia_maddr = id->id_maddr - 0xa0000 + atdevbase; ia.ia_msize = id->id_msize; if (!(*id->id_driver->cd_match)(parent, self, &ia)) { /* * If we don't do this, isa_configure() will repeatedly try to * probe devices that weren't found. But we need to be careful * to do it only for the ISA bus, or we would cause things like * `com0 at ast? slave ?' to not probe on the second ast. */ if (!parent) id->id_state = FSTATE_FOUND; return 0; } config_attach(parent, self->dv_cfdata, &ia, isaprint); return 1; } void isa_configure() { startrtclock(); while (config_search(isasubmatch, NULL, NULL)); printf("biomask %x netmask %x ttymask %x\n", (u_short)imask[IPL_BIO], (u_short)imask[IPL_NET], (u_short)imask[IPL_TTY]); spl0(); }