/* $NetBSD: isa.c,v 1.95 1997/06/06 23:43:54 thorpej Exp $ */ /*- * Copyright (c) 1993, 1994 Charles Hannum. 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 Charles Hannum. * 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. */ #include #include #include #include #include #include #include #include #include #include #ifdef __BROKEN_INDIRECT_CONFIG int isamatch __P((struct device *, void *, void *)); #else int isamatch __P((struct device *, struct cfdata *, void *)); #endif void isaattach __P((struct device *, struct device *, void *)); int isaprint __P((void *, const char *)); struct cfattach isa_ca = { sizeof(struct isa_softc), isamatch, isaattach }; struct cfdriver isa_cd = { #ifdef __BROKEN_INDIRECT_CONFIG NULL, "isa", DV_DULL, 1 #else NULL, "isa", DV_DULL #endif }; #ifdef __BROKEN_INDIRECT_CONFIG void isascan __P((struct device *, void *)); #else int isasearch __P((struct device *, struct cfdata *, void *)); #endif int #ifdef __BROKEN_INDIRECT_CONFIG isamatch(parent, match, aux) #else isamatch(parent, cf, aux) #endif struct device *parent; #ifdef __BROKEN_INDIRECT_CONFIG void *match; #else struct cfdata *cf; #endif void *aux; { #ifdef __BROKEN_INDIRECT_CONFIG struct cfdata *cf = match; #endif struct isabus_attach_args *iba = aux; if (strcmp(iba->iba_busname, cf->cf_driver->cd_name)) return (0); /* XXX check other indicators */ return (1); } void isaattach(parent, self, aux) struct device *parent, *self; void *aux; { struct isa_softc *sc = (struct isa_softc *)self; struct isabus_attach_args *iba = aux; isa_attach_hook(parent, self, iba); printf("\n"); sc->sc_iot = iba->iba_iot; sc->sc_memt = iba->iba_memt; sc->sc_dmat = iba->iba_dmat; sc->sc_ic = iba->iba_ic; /* * Map the registers used by the ISA DMA controller. */ if (bus_space_map(sc->sc_iot, IO_DMA1, DMA1_IOSIZE, 0, &sc->sc_dma1h)) panic("isaattach: can't map DMA controller #1"); if (bus_space_map(sc->sc_iot, IO_DMA2, DMA2_IOSIZE, 0, &sc->sc_dma2h)) panic("isaattach: can't map DMA controller #2"); if (bus_space_map(sc->sc_iot, IO_DMAPG, 0xf, 0, &sc->sc_dmapgh)) panic("isaattach: can't map DMA page registers"); /* * Map port 0x84, which causes a 1.25us delay when read. * We do this now, since several drivers need it. */ if (bus_space_subregion(sc->sc_iot, sc->sc_dmapgh, 0x04, 1, &sc->sc_delaybah)) panic("isaattach: can't map `delay port'"); /* XXX */ TAILQ_INIT(&sc->sc_subdevs); #ifdef __BROKEN_INDIRECT_CONFIG config_scan(isascan, self); #else config_search(isasearch, self, NULL); #endif } int isaprint(aux, isa) void *aux; const 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); if (ia->ia_msize > 1) printf("-0x%x", ia->ia_maddr + ia->ia_msize - 1); if (ia->ia_irq != IRQUNK) printf(" irq %d", ia->ia_irq); if (ia->ia_drq != DRQUNK) printf(" drq %d", ia->ia_drq); return (UNCONF); } #ifdef __BROKEN_INDIRECT_CONFIG void isascan(parent, match) struct device *parent; void *match; { struct isa_softc *sc = (struct isa_softc *)parent; struct device *dev = match; struct cfdata *cf = dev->dv_cfdata; struct isa_attach_args ia; #if defined(__i386__) if (cf->cf_fstate == FSTATE_STAR) panic("clone devices not supported on ISA bus"); #endif ia.ia_iot = sc->sc_iot; ia.ia_memt = sc->sc_memt; ia.ia_dmat = sc->sc_dmat; ia.ia_ic = sc->sc_ic; ia.ia_iobase = cf->cf_loc[0]; ia.ia_iosize = 0x666; ia.ia_maddr = cf->cf_loc[2]; ia.ia_msize = cf->cf_loc[3]; ia.ia_irq = cf->cf_loc[4] == 2 ? 9 : cf->cf_loc[4]; ia.ia_drq = cf->cf_loc[5]; ia.ia_delaybah = sc->sc_delaybah; if ((*cf->cf_attach->ca_match)(parent, match, &ia) > 0) config_attach(parent, match, &ia, isaprint); else free(dev, M_DEVBUF); } #else /* !__BROKEN_INDIRECT_CONFIG */ int isasearch(parent, cf, aux) struct device *parent; struct cfdata *cf; void *aux; { struct isa_softc *sc = (struct isa_softc *)parent; struct isa_attach_args ia; int tryagain; do { ia.ia_iot = sc->sc_iot; ia.ia_memt = sc->sc_memt; ia.ia_dmat = sc->sc_dmat; ia.ia_ic = sc->sc_ic; ia.ia_iobase = cf->cf_loc[0]; ia.ia_iosize = 0x666; ia.ia_maddr = cf->cf_loc[2]; ia.ia_msize = cf->cf_loc[3]; ia.ia_irq = cf->cf_loc[4] == 2 ? 9 : cf->cf_loc[4]; ia.ia_drq = cf->cf_loc[5]; ia.ia_delaybah = sc->sc_delaybah; tryagain = 0; if ((*cf->cf_attach->ca_match)(parent, cf, &ia) > 0) { config_attach(parent, cf, &ia, isaprint); tryagain = (cf->cf_fstate == FSTATE_STAR); } } while (tryagain); return (0); } #endif /* __BROKEN_INDIRECT_CONFIG */ char * isa_intr_typename(type) int type; { switch (type) { case IST_NONE : return ("none"); case IST_PULSE: return ("pulsed"); case IST_EDGE: return ("edge-triggered"); case IST_LEVEL: return ("level-triggered"); default: panic("isa_intr_typename: invalid type %d", type); } }