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cy_isa.c revision 1.2 
      1 /*	$NetBSD: cy_isa.c,v 1.2 1996/09/26 19:24:04 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 
     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 static int cy_probe_isa __P((struct device *, void *, void *));
     28 static void cy_attach_isa   __P((struct device *, struct device *, void *));
     29 
     30 struct cfattach cy_isa_ca = {
     31 	sizeof(struct cy_softc), cy_probe_isa, cy_attach_isa
     32 };
     33 
     34 static int
     35 cy_probe_isa(parent, match, aux)
     36 	struct device  *parent;
     37 	void *match, *aux;
     38 {
     39 	struct isa_attach_args *ia = aux;
     40 	struct cy_softc sc;
     41 	int found;
     42 
     43 	memcpy(&sc.sc_dev, match, sizeof(struct device));
     44 
     45 	sc.sc_bc = ia->ia_bc;
     46 	sc.sc_bustype = CY_BUSTYPE_ISA;
     47 
     48 	if (ia->ia_irq == IRQUNK) {
     49 		printf("%s: interrupt not defined\n", sc.sc_dev.dv_xname);
     50 		return 0;
     51 	}
     52 
     53 	if (bus_mem_map(ia->ia_bc, ia->ia_maddr, CY_MEMSIZE, 0,
     54 	    &sc.sc_memh) != 0)
     55 		return 0;
     56 
     57 	found = cy_find(&sc);
     58 
     59 	bus_mem_unmap(ia->ia_bc, sc.sc_memh, CY_MEMSIZE);
     60 
     61 	if (found) {
     62 		ia->ia_iosize = 0;
     63 		ia->ia_msize = CY_MEMSIZE;
     64 	}
     65 
     66 	return found;
     67 }
     68 
     69 static void
     70 cy_attach_isa(parent, self, aux)
     71 	struct device  *parent, *self;
     72 	void *aux;
     73 {
     74 	struct cy_softc *sc = (void *) self;
     75 	struct isa_attach_args *ia = aux;
     76 
     77 	sc->sc_bc = ia->ia_bc;
     78 	sc->sc_bustype = CY_BUSTYPE_ISA;
     79 
     80 	if (bus_mem_map(ia->ia_bc, ia->ia_maddr, CY_MEMSIZE, 0,
     81 	    &sc->sc_memh) != 0)
     82 		panic("%s: Cannot map memory", sc->sc_dev.dv_xname);
     83 
     84 	if (cy_find(sc) == 0)
     85 		panic("%s: Cannot find card", sc->sc_dev.dv_xname);
     86 
     87 	cy_attach(parent, self, aux);
     88 
     89 	sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq,
     90 	    IST_EDGE, IPL_TTY, cy_intr, sc);
     91 
     92 	if (sc->sc_ih == NULL)
     93 		printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname);
     94 }
     95