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Annotation of src/sys/dev/isa/cy_isa.c, Revision 1.22

1.22    ! ad          1: /*     $NetBSD: cy_isa.c,v 1.21 2006/11/16 01:33:00 christos Exp $     */
1.1       christos    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:  */
1.13      lukem      11:
                     12: #include <sys/cdefs.h>
1.22    ! ad         13: __KERNEL_RCSID(0, "$NetBSD: cy_isa.c,v 1.21 2006/11/16 01:33:00 christos Exp $");
1.1       christos   14:
                     15: #include <sys/param.h>
                     16: #include <sys/systm.h>
                     17: #include <sys/device.h>
                     18:
1.22    ! ad         19: #include <sys/bus.h>
        !            20: #include <sys/intr.h>
1.1       christos   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:
1.11      thorpej    29: int    cy_isa_probe(struct device *, struct cfdata *, void *);
                     30: void   cy_isa_attach(struct device *, struct device *, void *);
1.1       christos   31:
1.17      thorpej    32: CFATTACH_DECL(cy_isa, sizeof(struct cy_softc),
                     33:     cy_isa_probe, cy_isa_attach, NULL, NULL);
1.1       christos   34:
1.11      thorpej    35: int
1.21      christos   36: cy_isa_probe(struct device *parent, struct cfdata *match, void *aux)
1.1       christos   37: {
                     38:        struct isa_attach_args *ia = aux;
                     39:        struct cy_softc sc;
1.2       thorpej    40:        int found;
1.1       christos   41:
1.14      thorpej    42:        if (ia->ia_niomem < 1)
                     43:                return (0);
                     44:        if (ia->ia_nirq < 1)
                     45:                return (0);
                     46:
1.1       christos   47:        memcpy(&sc.sc_dev, match, sizeof(struct device));
                     48:
1.5       thorpej    49:        sc.sc_memt = ia->ia_memt;
1.1       christos   50:        sc.sc_bustype = CY_BUSTYPE_ISA;
1.6       thorpej    51:
1.9       christos   52:        /* Disallow wildcarded memory address. */
1.18      drochner   53:        if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM)
1.14      thorpej    54:                return 0;
1.18      drochner   55:        if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ)
1.1       christos   56:                return 0;
                     57:
1.14      thorpej    58:        if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, CY_MEMSIZE, 0,
1.5       thorpej    59:            &sc.sc_bsh) != 0)
1.1       christos   60:                return 0;
                     61:
1.2       thorpej    62:        found = cy_find(&sc);
1.1       christos   63:
1.5       thorpej    64:        bus_space_unmap(ia->ia_memt, sc.sc_bsh, CY_MEMSIZE);
1.1       christos   65:
1.2       thorpej    66:        if (found) {
1.14      thorpej    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;
1.2       thorpej    74:        }
1.11      thorpej    75:        return (found);
1.1       christos   76: }
                     77:
1.11      thorpej    78: void
1.21      christos   79: cy_isa_attach(struct device *parent, struct device *self, void *aux)
1.1       christos   80: {
                     81:        struct cy_softc *sc = (void *) self;
                     82:        struct isa_attach_args *ia = aux;
                     83:
1.5       thorpej    84:        sc->sc_memt = ia->ia_memt;
1.1       christos   85:        sc->sc_bustype = CY_BUSTYPE_ISA;
                     86:
1.11      thorpej    87:        printf(": Cyclades-Y multiport serial\n");
                     88:
1.14      thorpej    89:        if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, CY_MEMSIZE, 0,
1.7       thorpej    90:            &sc->sc_bsh) != 0) {
1.11      thorpej    91:                printf("%s: unable to map device registers\n",
                     92:                    sc->sc_dev.dv_xname);
1.7       thorpej    93:                return;
                     94:        }
1.1       christos   95:
1.7       thorpej    96:        if (cy_find(sc) == 0) {
1.11      thorpej    97:                printf("%s: unable to find CD1400s\n", sc->sc_dev.dv_xname);
1.7       thorpej    98:                return;
                     99:        }
1.1       christos  100:
1.12      thorpej   101:        cy_attach(sc);
1.1       christos  102:
1.14      thorpej   103:        sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
1.1       christos  104:            IST_EDGE, IPL_TTY, cy_intr, sc);
                    105:        if (sc->sc_ih == NULL)
1.11      thorpej   106:                printf("%s: unable to establish interrupt",
                    107:                    sc->sc_dev.dv_xname);
1.1       christos  108: }