1 /* $NetBSD: cy_isa.c,v 1.12 2001/01/20 02:26:39 thorpej Exp $ */ 2 3 /* 4 * cy.c 5 * 6 * Driver for Cyclades Cyclom-8/16/32 multiport serial cards 7 * (currently not tested with Cyclom-32 cards) 8 * 9 * Timo Rossi, 1996 10 */ 11 12 #include <sys/param.h> 13 #include <sys/systm.h> 14 #include <sys/device.h> 15 16 #include <machine/bus.h> 17 #include <machine/intr.h> 18 19 #include <dev/isa/isavar.h> 20 #include <dev/isa/isareg.h> 21 22 #include <dev/ic/cd1400reg.h> 23 #include <dev/ic/cyreg.h> 24 #include <dev/ic/cyvar.h> 25 26 int cy_isa_probe(struct device *, struct cfdata *, void *); 27 void cy_isa_attach(struct device *, struct device *, void *); 28 29 struct cfattach cy_isa_ca = { 30 sizeof(struct cy_softc), cy_isa_probe, cy_isa_attach 31 }; 32 33 int 34 cy_isa_probe(struct device *parent, struct cfdata *match, void *aux) 35 { 36 struct isa_attach_args *ia = aux; 37 struct cy_softc sc; 38 int found; 39 40 memcpy(&sc.sc_dev, match, sizeof(struct device)); 41 42 sc.sc_memt = ia->ia_memt; 43 sc.sc_bustype = CY_BUSTYPE_ISA; 44 45 /* Disallow wildcarded memory address. */ 46 if (ia->ia_maddr == ISACF_IOMEM_DEFAULT) 47 return (0); 48 49 if (ia->ia_irq == IRQUNK) 50 return 0; 51 52 if (bus_space_map(ia->ia_memt, ia->ia_maddr, CY_MEMSIZE, 0, 53 &sc.sc_bsh) != 0) 54 return 0; 55 56 found = cy_find(&sc); 57 58 bus_space_unmap(ia->ia_memt, sc.sc_bsh, CY_MEMSIZE); 59 60 if (found) { 61 ia->ia_iosize = 0; 62 ia->ia_msize = CY_MEMSIZE; 63 } 64 65 return (found); 66 } 67 68 void 69 cy_isa_attach(struct device *parent, struct device *self, void *aux) 70 { 71 struct cy_softc *sc = (void *) self; 72 struct isa_attach_args *ia = aux; 73 74 sc->sc_memt = ia->ia_memt; 75 sc->sc_bustype = CY_BUSTYPE_ISA; 76 77 printf(": Cyclades-Y multiport serial\n"); 78 79 if (bus_space_map(ia->ia_memt, ia->ia_maddr, CY_MEMSIZE, 0, 80 &sc->sc_bsh) != 0) { 81 printf("%s: unable to map device registers\n", 82 sc->sc_dev.dv_xname); 83 return; 84 } 85 86 if (cy_find(sc) == 0) { 87 printf("%s: unable to find CD1400s\n", sc->sc_dev.dv_xname); 88 return; 89 } 90 91 cy_attach(sc); 92 93 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, 94 IST_EDGE, IPL_TTY, cy_intr, sc); 95 if (sc->sc_ih == NULL) 96 printf("%s: unable to establish interrupt", 97 sc->sc_dev.dv_xname); 98 } 99