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cy_isa.c revision 1.9 
      1 /*	$NetBSD: cy_isa.c,v 1.9 1998/01/31 11:23:35 christos 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 
     13 #include <sys/param.h>
     14 #include <sys/systm.h>
     15 #include <sys/device.h>
     16 
     17 #include <machine/bus.h>
     18 #include <machine/intr.h>
     19 
     20 #include <dev/isa/isavar.h>
     21 #include <dev/isa/isareg.h>
     22 
     23 #include <dev/ic/cd1400reg.h>
     24 #include <dev/ic/cyreg.h>
     25 #include <dev/ic/cyvar.h>
     26 
     27 #ifdef __BROKEN_INDIRECT_CONFIG
     28 static int cy_probe_isa __P((struct device *, void *, void *));
     29 #else
     30 static int cy_probe_isa __P((struct device *, struct cfdata *, void *));
     31 #endif
     32 static void cy_attach_isa   __P((struct device *, struct device *, void *));
     33 
     34 struct cfattach cy_isa_ca = {
     35 	sizeof(struct cy_softc), cy_probe_isa, cy_attach_isa
     36 };
     37 
     38 static int
     39 cy_probe_isa(parent, match, aux)
     40 	struct device  *parent;
     41 #ifdef __BROKEN_INDIRECT_CONFIG
     42 	void *match;
     43 #else
     44 	struct cfdata *match;
     45 #endif
     46 	void *aux;
     47 {
     48 	struct isa_attach_args *ia = aux;
     49 	struct cy_softc sc;
     50 	int found;
     51 
     52 	memcpy(&sc.sc_dev, match, sizeof(struct device));
     53 
     54 	sc.sc_memt = ia->ia_memt;
     55 	sc.sc_bustype = CY_BUSTYPE_ISA;
     56 
     57 	/* Disallow wildcarded memory address. */
     58 	if (ia->ia_maddr == ISACF_IOMEM_DEFAULT) {
     59 		printf("%s: memory addr not defined\n", sc.sc_dev.dv_xname);
     60 		return (0);
     61 	}
     62 
     63 	if (ia->ia_irq == IRQUNK) {
     64 		printf("%s: interrupt not defined\n", sc.sc_dev.dv_xname);
     65 		return 0;
     66 	}
     67 
     68 	if (bus_space_map(ia->ia_memt, ia->ia_maddr, CY_MEMSIZE, 0,
     69 	    &sc.sc_bsh) != 0)
     70 		return 0;
     71 
     72 	found = cy_find(&sc);
     73 
     74 	bus_space_unmap(ia->ia_memt, sc.sc_bsh, CY_MEMSIZE);
     75 
     76 	if (found) {
     77 		ia->ia_iosize = 0;
     78 		ia->ia_msize = CY_MEMSIZE;
     79 	}
     80 
     81 	return found;
     82 }
     83 
     84 static void
     85 cy_attach_isa(parent, self, aux)
     86 	struct device  *parent, *self;
     87 	void *aux;
     88 {
     89 	struct cy_softc *sc = (void *) self;
     90 	struct isa_attach_args *ia = aux;
     91 
     92 	sc->sc_memt = ia->ia_memt;
     93 	sc->sc_bustype = CY_BUSTYPE_ISA;
     94 
     95 	if (bus_space_map(ia->ia_memt, ia->ia_maddr, CY_MEMSIZE, 0,
     96 	    &sc->sc_bsh) != 0) {
     97 		printf(": cannot map mem space\n");
     98 		return;
     99 	}
    100 
    101 	if (cy_find(sc) == 0) {
    102 		printf(": cy_find failed\n");
    103 		return;
    104 	}
    105 
    106 	cy_attach(parent, self, aux);
    107 
    108 	sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq,
    109 	    IST_EDGE, IPL_TTY, cy_intr, sc);
    110 
    111 	if (sc->sc_ih == NULL)
    112 		printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname);
    113 }
    114