1 /* $NetBSD: cy_isa.c,v 1.23 2008/03/26 17:50:32 matt 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 1.23 2008/03/26 17:50:32 matt Exp $"); 14 15 #include <sys/param.h> 16 #include <sys/systm.h> 17 #include <sys/device.h> 18 19 #include <sys/bus.h> 20 #include <sys/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(device_t, cfdata_t, void *); 30 void cy_isa_attach(device_t, device_t, void *); 31 32 CFATTACH_DECL_NEW(cy_isa, sizeof(struct cy_softc), 33 cy_isa_probe, cy_isa_attach, NULL, NULL); 34 35 int 36 cy_isa_probe(device_t parent, cfdata_t 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 sc.sc_memt = ia->ia_memt; 48 sc.sc_bustype = CY_BUSTYPE_ISA; 49 50 /* Disallow wildcarded memory address. */ 51 if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM) 52 return 0; 53 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) 54 return 0; 55 56 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, CY_MEMSIZE, 0, 57 &sc.sc_bsh) != 0) 58 return 0; 59 60 found = cy_find(&sc); 61 62 bus_space_unmap(ia->ia_memt, sc.sc_bsh, CY_MEMSIZE); 63 64 if (found) { 65 ia->ia_niomem = 1; 66 ia->ia_iomem[0].ir_size = CY_MEMSIZE; 67 68 ia->ia_nirq = 1; 69 70 ia->ia_nio = 0; 71 ia->ia_ndrq = 0; 72 } 73 return (found); 74 } 75 76 void 77 cy_isa_attach(device_t parent, device_t self, void *aux) 78 { 79 struct cy_softc *sc = device_private(self); 80 struct isa_attach_args *ia = aux; 81 82 sc->sc_dev = self; 83 sc->sc_memt = ia->ia_memt; 84 sc->sc_bustype = CY_BUSTYPE_ISA; 85 86 printf(": Cyclades-Y multiport serial\n"); 87 88 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, CY_MEMSIZE, 0, 89 &sc->sc_bsh) != 0) { 90 aprint_error_dev(sc->sc_dev, 91 "unable to map device registers\n"); 92 return; 93 } 94 95 if (cy_find(sc) == 0) { 96 aprint_error_dev(sc->sc_dev, "unable to find CD1400s\n"); 97 return; 98 } 99 100 cy_attach(sc); 101 102 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 103 IST_EDGE, IPL_TTY, cy_intr, sc); 104 if (sc->sc_ih == NULL) 105 aprint_error_dev(sc->sc_dev, "unable to establish interrupt\n"); 106 } 107