107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
/* $NetBSD: cy_isa.c,v 1.23 2008/03/26 17:50:32 matt Exp $ */
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/*
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* cy.c
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*
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* Driver for Cyclades Cyclom-8/16/32 multiport serial cards
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* (currently not tested with Cyclom-32 cards)
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*
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* Timo Rossi, 1996
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: cy_isa.c,v 1.23 2008/03/26 17:50:32 matt Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/bus.h>
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#include <sys/intr.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/isareg.h>
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#include <dev/ic/cd1400reg.h>
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#include <dev/ic/cyreg.h>
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#include <dev/ic/cyvar.h>
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int cy_isa_probe(device_t, cfdata_t, void *);
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void cy_isa_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(cy_isa, sizeof(struct cy_softc),
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cy_isa_probe, cy_isa_attach, NULL, NULL);
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int
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cy_isa_probe(device_t parent, cfdata_t match, void *aux)
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{
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struct isa_attach_args *ia = aux;
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struct cy_softc sc;
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int found;
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if (ia->ia_niomem < 1)
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return (0);
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if (ia->ia_nirq < 1)
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return (0);
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sc.sc_memt = ia->ia_memt;
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sc.sc_bustype = CY_BUSTYPE_ISA;
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/* Disallow wildcarded memory address. */
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if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM)
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return 0;
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if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ)
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return 0;
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if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, CY_MEMSIZE, 0,
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&sc.sc_bsh) != 0)
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return 0;
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found = cy_find(&sc);
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bus_space_unmap(ia->ia_memt, sc.sc_bsh, CY_MEMSIZE);
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if (found) {
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ia->ia_niomem = 1;
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ia->ia_iomem[0].ir_size = CY_MEMSIZE;
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ia->ia_nirq = 1;
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ia->ia_nio = 0;
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ia->ia_ndrq = 0;
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}
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return (found);
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}
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void
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cy_isa_attach(device_t parent, device_t self, void *aux)
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{
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struct cy_softc *sc = device_private(self);
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struct isa_attach_args *ia = aux;
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sc->sc_dev = self;
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sc->sc_memt = ia->ia_memt;
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sc->sc_bustype = CY_BUSTYPE_ISA;
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printf(": Cyclades-Y multiport serial\n");
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if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, CY_MEMSIZE, 0,
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&sc->sc_bsh) != 0) {
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aprint_error_dev(sc->sc_dev,
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"unable to map device registers\n");
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return;
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}
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if (cy_find(sc) == 0) {
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aprint_error_dev(sc->sc_dev, "unable to find CD1400s\n");
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return;
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}
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cy_attach(sc);
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sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
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IST_EDGE, IPL_TTY, cy_intr, sc);
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if (sc->sc_ih == NULL)
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aprint_error_dev(sc->sc_dev, "unable to establish interrupt\n");
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}
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