Annotation of sys/dev/isa/cy_isa.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: cy_isa.c,v 1.9 2002/09/15 21:30:25 art Exp $ */
! 2: /*
! 3: * Copyright (c) 1996 Timo Rossi.
! 4: * All rights reserved.
! 5: *
! 6: * Redistribution and use in source and binary forms, with or without
! 7: * modification, are permitted provided that the following conditions
! 8: * are met:
! 9: * 1. Redistributions of source code must retain the above copyright
! 10: * notice, this list of conditions and the following disclaimer.
! 11: * 2. Redistributions in binary form must reproduce the above copyright
! 12: * notice, this list of conditions and the following disclaimer in the
! 13: * documentation and/or other materials provided with the distribution.
! 14: * 3. Neither the name of the author nor the names of contributors
! 15: * may be used to endorse or promote products derived from this software
! 16: * without specific prior written permission.
! 17: *
! 18: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 19: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 20: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 21: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 22: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 23: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 24: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 25: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 26: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 27: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 28: * SUCH DAMAGE.
! 29: */
! 30:
! 31: /*
! 32: * cy_isa.c
! 33: *
! 34: * Driver for Cyclades Cyclom-8/16/32 multiport serial cards
! 35: * (currently not tested with Cyclom-32 cards)
! 36: *
! 37: * Timo Rossi, 1996
! 38: */
! 39:
! 40: #include <sys/param.h>
! 41: #include <sys/systm.h>
! 42: #include <sys/device.h>
! 43:
! 44: #include <machine/bus.h>
! 45:
! 46: #include <dev/isa/isavar.h>
! 47: #include <dev/isa/isareg.h>
! 48:
! 49: #include <dev/ic/cd1400reg.h>
! 50: #include <dev/ic/cyreg.h>
! 51:
! 52: static int cy_isa_probe(struct device *, void *, void *);
! 53: void cy_isa_attach(struct device *, struct device *, void *);
! 54:
! 55: struct cfattach cy_isa_ca = {
! 56: sizeof(struct cy_softc), cy_isa_probe, cy_isa_attach
! 57: };
! 58:
! 59: int
! 60: cy_isa_probe(parent, match, aux)
! 61: struct device *parent;
! 62: void *match, *aux;
! 63: {
! 64: int card = ((struct device *)match)->dv_unit;
! 65: struct isa_attach_args *ia = aux;
! 66: bus_space_tag_t memt;
! 67: bus_space_handle_t memh;
! 68: int ret;
! 69:
! 70: if (ia->ia_irq == IRQUNK) {
! 71: printf("cy%d error: interrupt not defined\n", card);
! 72: return (0);
! 73: }
! 74:
! 75: memt = ia->ia_memt;
! 76: if (bus_space_map(memt, ia->ia_maddr, 0x2000, 0, &memh) != 0)
! 77: return (0);
! 78:
! 79: ret = cy_probe_common(memt, memh, CY_BUSTYPE_ISA);
! 80: bus_space_unmap(memt, memh, 0x2000);
! 81: if (ret == 0)
! 82: return (0);
! 83:
! 84: ia->ia_iosize = 0;
! 85: ia->ia_msize = 0x2000;
! 86: return (1);
! 87: }
! 88:
! 89: void
! 90: cy_isa_attach(parent, self, aux)
! 91: struct device *parent, *self;
! 92: void *aux;
! 93: {
! 94: struct cy_softc *sc = (struct cy_softc *)self;
! 95: struct isa_attach_args *ia = aux;
! 96:
! 97: sc->sc_bustype = CY_BUSTYPE_ISA;
! 98: sc->sc_memt = ia->ia_memt;
! 99:
! 100: if (bus_space_map(ia->ia_memt, ia->ia_maddr, 0x2000, 0,
! 101: &sc->sc_memh) != 0)
! 102: return;
! 103:
! 104: sc->sc_nr_cd1400s = cy_probe_common(sc->sc_memt, sc->sc_memh,
! 105: CY_BUSTYPE_ISA);
! 106:
! 107: cy_attach(parent, self);
! 108:
! 109: sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq,
! 110: IST_EDGE, IPL_TTY, cy_intr, sc, sc->sc_dev.dv_xname);
! 111:
! 112: if (sc->sc_ih == NULL)
! 113: panic("cy: couldn't establish interrupt");
! 114: }
CVSweb