1 /* $NetBSD: cy_isa.c,v 1.14 2002/01/07 21:47:04 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/cdefs.h> 13 __KERNEL_RCSID(0, "$NetBSD: cy_isa.c,v 1.14 2002/01/07 21:47:04 thorpej Exp $"); 14 15 #include <sys/param.h> 16 #include <sys/systm.h> 17 #include <sys/device.h> 18 19 #include <machine/bus.h> 20 #include <machine/intr.h> 21 22 #include <dev/isa/isavar.h> 23 #include <dev/isa/isareg.h> 24 25 #include <dev/ic/cd1400reg.h> 26 #include <dev/ic/cyreg.h> 27 #include <dev/ic/cyvar.h> 28 29 int cy_isa_probe(struct device *, struct cfdata *, void *); 30 void cy_isa_attach(struct device *, struct device *, void *); 31 32 struct cfattach cy_isa_ca = { 33 sizeof(struct cy_softc), cy_isa_probe, cy_isa_attach 34 }; 35 36 int 37 cy_isa_probe(struct device *parent, struct cfdata *match, void *aux) 38 { 39 struct isa_attach_args *ia = aux; 40 struct cy_softc sc; 41 int found; 42 43 if (ia->ia_niomem < 1) 44 return (0); 45 if (ia->ia_nirq < 1) 46 return (0); 47 48 memcpy(&sc.sc_dev, match, sizeof(struct device)); 49 50 sc.sc_memt = ia->ia_memt; 51 sc.sc_bustype = CY_BUSTYPE_ISA; 52 53 /* Disallow wildcarded memory address. */ 54 if (ia->ia_iomem[0].ir_addr == ISACF_IOMEM_DEFAULT) 55 return 0; 56 if (ia->ia_irq[0].ir_irq == ISACF_IRQ_DEFAULT) 57 return 0; 58 59 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, CY_MEMSIZE, 0, 60 &sc.sc_bsh) != 0) 61 return 0; 62 63 found = cy_find(&sc); 64 65 bus_space_unmap(ia->ia_memt, sc.sc_bsh, CY_MEMSIZE); 66 67 if (found) { 68 ia->ia_niomem = 1; 69 ia->ia_iomem[0].ir_size = CY_MEMSIZE; 70 71 ia->ia_nirq = 1; 72 73 ia->ia_nio = 0; 74 ia->ia_ndrq = 0; 75 } 76 return (found); 77 } 78 79 void 80 cy_isa_attach(struct device *parent, struct device *self, void *aux) 81 { 82 struct cy_softc *sc = (void *) self; 83 struct isa_attach_args *ia = aux; 84 85 sc->sc_memt = ia->ia_memt; 86 sc->sc_bustype = CY_BUSTYPE_ISA; 87 88 printf(": Cyclades-Y multiport serial\n"); 89 90 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, CY_MEMSIZE, 0, 91 &sc->sc_bsh) != 0) { 92 printf("%s: unable to map device registers\n", 93 sc->sc_dev.dv_xname); 94 return; 95 } 96 97 if (cy_find(sc) == 0) { 98 printf("%s: unable to find CD1400s\n", sc->sc_dev.dv_xname); 99 return; 100 } 101 102 cy_attach(sc); 103 104 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 105 IST_EDGE, IPL_TTY, cy_intr, sc); 106 if (sc->sc_ih == NULL) 107 printf("%s: unable to establish interrupt", 108 sc->sc_dev.dv_xname); 109 } 110