1 /* $NetBSD: cy_isa.c,v 1.18 2004/09/14 20:20:46 drochner 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 1.18 2004/09/14 20:20:46 drochner 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 CFATTACH_DECL(cy_isa, sizeof(struct cy_softc), 33 cy_isa_probe, cy_isa_attach, NULL, NULL); 34 35 int 36 cy_isa_probe(struct device *parent, struct cfdata *match, void *aux) 37 { 38 struct isa_attach_args *ia = aux; 39 struct cy_softc sc; 40 int found; 41 42 if (ia->ia_niomem < 1) 43 return (0); 44 if (ia->ia_nirq < 1) 45 return (0); 46 47 memcpy(&sc.sc_dev, match, sizeof(struct device)); 48 49 sc.sc_memt = ia->ia_memt; 50 sc.sc_bustype = CY_BUSTYPE_ISA; 51 52 /* Disallow wildcarded memory address. */ 53 if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM) 54 return 0; 55 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) 56 return 0; 57 58 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, CY_MEMSIZE, 0, 59 &sc.sc_bsh) != 0) 60 return 0; 61 62 found = cy_find(&sc); 63 64 bus_space_unmap(ia->ia_memt, sc.sc_bsh, CY_MEMSIZE); 65 66 if (found) { 67 ia->ia_niomem = 1; 68 ia->ia_iomem[0].ir_size = CY_MEMSIZE; 69 70 ia->ia_nirq = 1; 71 72 ia->ia_nio = 0; 73 ia->ia_ndrq = 0; 74 } 75 return (found); 76 } 77 78 void 79 cy_isa_attach(struct device *parent, struct device *self, void *aux) 80 { 81 struct cy_softc *sc = (void *) self; 82 struct isa_attach_args *ia = aux; 83 84 sc->sc_memt = ia->ia_memt; 85 sc->sc_bustype = CY_BUSTYPE_ISA; 86 87 printf(": Cyclades-Y multiport serial\n"); 88 89 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, CY_MEMSIZE, 0, 90 &sc->sc_bsh) != 0) { 91 printf("%s: unable to map device registers\n", 92 sc->sc_dev.dv_xname); 93 return; 94 } 95 96 if (cy_find(sc) == 0) { 97 printf("%s: unable to find CD1400s\n", sc->sc_dev.dv_xname); 98 return; 99 } 100 101 cy_attach(sc); 102 103 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 104 IST_EDGE, IPL_TTY, cy_intr, sc); 105 if (sc->sc_ih == NULL) 106 printf("%s: unable to establish interrupt", 107 sc->sc_dev.dv_xname); 108 } 109