/* $OpenBSD: isa.c,v 1.39 2003/06/03 21:09:02 deraadt Exp $ */ /* $NetBSD: isa.c,v 1.85 1996/05/14 00:31:04 thorpej Exp $ */ /* * Copyright (c) 1997, Jason Downs. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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(S) 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. */ /*- * 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 <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/conf.h> #include <sys/malloc.h> #include <sys/device.h> #include <sys/extent.h> #include <machine/intr.h> #include <dev/isa/isareg.h> #include <dev/isa/isavar.h> #include <dev/isa/isadmareg.h> int isamatch(struct device *, void *, void *); void isaattach(struct device *, struct device *, void *); extern int autoconf_verbose; struct cfattach isa_ca = { sizeof(struct isa_softc), isamatch, isaattach }; struct cfdriver isa_cd = { NULL, "isa", DV_DULL, 1 }; int isamatch(parent, match, aux) struct device *parent; void *match, *aux; { struct cfdata *cf = match; 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; #if NISADMA > 0 sc->sc_dmat = iba->iba_dmat; #endif /* NISADMA > 0 */ sc->sc_ic = iba->iba_ic; #if NISAPNP > 0 isapnp_isa_attach_hook(sc); #endif #if NISADMA > 0 /* * Map the registers used by the ISA DMA controller. * XXX Should be done in the isadmaattach routine.. but the delay * XXX port makes it troublesome. Note that these aren't really * XXX valid on ISA busses without DMA. */ 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. * XXX this port doesn't exist on all ISA busses... */ if (bus_space_subregion(sc->sc_iot, sc->sc_dmapgh, 0x04, 1, &sc->sc_delaybah)) #else /* NISADMA > 0 */ if (bus_space_map(sc->sc_iot, IO_DMAPG + 0x4, 0x1, 0, &sc->sc_delaybah)) #endif /* NISADMA > 0 */ panic("isaattach: can't map `delay port'"); /* XXX */ TAILQ_INIT(&sc->sc_subdevs); config_scan(isascan, self); } 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("/%d", ia->ia_iosize); if (ia->ia_msize) printf(" iomem 0x%x", ia->ia_maddr); if (ia->ia_msize > 1) printf("/%d", ia->ia_msize); if (ia->ia_irq != IRQUNK) printf(" irq %d", ia->ia_irq); if (ia->ia_drq != DRQUNK) printf(" drq %d", ia->ia_drq); if (ia->ia_drq2 != DRQUNK) printf(" drq2 %d", ia->ia_drq2); return (UNCONF); } 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; ia.ia_iot = sc->sc_iot; ia.ia_memt = sc->sc_memt; #if NISADMA > 0 ia.ia_dmat = sc->sc_dmat; #endif /* NISADMA > 0 */ ia.ia_ic = sc->sc_ic; ia.ia_iobase = cf->cf_iobase; ia.ia_iosize = 0x666; ia.ia_maddr = cf->cf_maddr; ia.ia_msize = cf->cf_msize; ia.ia_irq = cf->cf_irq == 2 ? 9 : cf->cf_irq; ia.ia_drq = cf->cf_drq; ia.ia_drq2 = cf->cf_drq2; ia.ia_delaybah = sc->sc_delaybah; if (cf->cf_fstate == FSTATE_STAR) { struct isa_attach_args ia2 = ia; if (autoconf_verbose) printf(">>> probing for %s*\n", cf->cf_driver->cd_name); while ((*cf->cf_attach->ca_match)(parent, dev, &ia2) > 0) { #if !defined(__NO_ISA_INTR_CHECK) if ((ia2.ia_irq != IRQUNK) && !isa_intr_check(sc->sc_ic, ia2.ia_irq, IST_EDGE)) { printf("%s%d: irq %d already in use\n", cf->cf_driver->cd_name, cf->cf_unit, ia2.ia_irq); ia2 = ia; break; } #endif if (autoconf_verbose) printf(">>> probe for %s* clone into %s%d\n", cf->cf_driver->cd_name, cf->cf_driver->cd_name, cf->cf_unit); if (ia2.ia_iosize == 0x666) { printf("%s: iosize not repaired by driver\n", sc->sc_dev.dv_xname); ia2.ia_iosize = 0; } config_attach(parent, dev, &ia2, isaprint); dev = config_make_softc(parent, cf); #if NISADMA > 0 if (ia2.ia_drq != DRQUNK) ISA_DRQ_ALLOC((struct device *)sc, ia2.ia_drq); if (ia2.ia_drq2 != DRQUNK) ISA_DRQ_ALLOC((struct device *)sc, ia2.ia_drq2); #endif /* NISAMDA > 0 */ ia2 = ia; } if (autoconf_verbose) printf(">>> probing for %s* finished\n", cf->cf_driver->cd_name); free(dev, M_DEVBUF); return; } if (autoconf_verbose) printf(">>> probing for %s%d\n", cf->cf_driver->cd_name, cf->cf_unit); if ((*cf->cf_attach->ca_match)(parent, dev, &ia) > 0) { #if !defined(__NO_ISA_INTR_CHECK) if ((ia.ia_irq != IRQUNK) && !isa_intr_check(sc->sc_ic, ia.ia_irq, IST_EDGE)) { printf("%s%d: irq %d already in use\n", cf->cf_driver->cd_name, cf->cf_unit, ia.ia_irq); free(dev, M_DEVBUF); } else { #endif if (autoconf_verbose) printf(">>> probing for %s%d succeeded\n", cf->cf_driver->cd_name, cf->cf_unit); config_attach(parent, dev, &ia, isaprint); #if NISADMA > 0 if (ia.ia_drq != DRQUNK) ISA_DRQ_ALLOC((struct device *)sc, ia.ia_drq); if (ia.ia_drq2 != DRQUNK) ISA_DRQ_ALLOC((struct device *)sc, ia.ia_drq2); #endif /* NISAMDA > 0 */ #if !defined(__NO_ISA_INTR_CHECK) } #endif } else { if (autoconf_verbose) printf(">>> probing for %s%d failed\n", cf->cf_driver->cd_name, cf->cf_unit); free(dev, M_DEVBUF); } } 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); } }