1 /* $NetBSD: aha_isa.c,v 1.4 1997/06/06 23:43:47 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1994, 1996, 1997 Charles M. Hannum. 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. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Charles M. Hannum. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/types.h> 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/device.h> 36 37 #include <machine/bus.h> 38 #include <machine/intr.h> 39 40 #include <scsi/scsi_all.h> 41 #include <scsi/scsiconf.h> 42 43 #include <dev/isa/isavar.h> 44 #include <dev/isa/isadmavar.h> 45 46 #include <dev/ic/ahareg.h> 47 #include <dev/ic/ahavar.h> 48 49 #define AHA_ISA_IOSIZE 4 50 51 #ifdef __BROKEN_INDIRECT_CONFIG 52 int aha_isa_probe __P((struct device *, void *, void *)); 53 #else 54 int aha_isa_probe __P((struct device *, struct cfdata *, void *)); 55 #endif 56 void aha_isa_attach __P((struct device *, struct device *, void *)); 57 58 struct cfattach aha_isa_ca = { 59 sizeof(struct aha_softc), aha_isa_probe, aha_isa_attach 60 }; 61 62 /* 63 * Check the slots looking for a board we recognise 64 * If we find one, note it's address (slot) and call 65 * the actual probe routine to check it out. 66 */ 67 int 68 aha_isa_probe(parent, match, aux) 69 struct device *parent; 70 #ifdef __BROKEN_INDIRECT_CONFIG 71 void *match; 72 #else 73 struct cfdata *match; 74 #endif 75 void *aux; 76 { 77 struct isa_attach_args *ia = aux; 78 bus_space_tag_t iot = ia->ia_iot; 79 bus_space_handle_t ioh; 80 struct aha_probe_data apd; 81 int rv; 82 83 if (bus_space_map(iot, ia->ia_iobase, AHA_ISA_IOSIZE, 0, &ioh)) 84 return (0); 85 86 rv = aha_find(iot, ioh, &apd); 87 88 bus_space_unmap(iot, ioh, AHA_ISA_IOSIZE); 89 90 if (rv) { 91 if (ia->ia_irq != -1 && ia->ia_irq != apd.sc_irq) 92 return (0); 93 if (ia->ia_drq != -1 && ia->ia_drq != apd.sc_drq) 94 return (0); 95 ia->ia_irq = apd.sc_irq; 96 ia->ia_drq = apd.sc_drq; 97 ia->ia_msize = 0; 98 ia->ia_iosize = AHA_ISA_IOSIZE; 99 } 100 return (rv); 101 } 102 103 /* 104 * Attach all the sub-devices we can find 105 */ 106 void 107 aha_isa_attach(parent, self, aux) 108 struct device *parent, *self; 109 void *aux; 110 { 111 struct isa_attach_args *ia = aux; 112 struct aha_softc *sc = (void *)self; 113 bus_space_tag_t iot = ia->ia_iot; 114 bus_space_handle_t ioh; 115 struct aha_probe_data apd; 116 isa_chipset_tag_t ic = ia->ia_ic; 117 118 printf("\n"); 119 120 if (bus_space_map(iot, ia->ia_iobase, AHA_ISA_IOSIZE, 0, &ioh)) 121 panic("aha_isa_attach: bus_space_map failed"); 122 123 sc->sc_iot = iot; 124 sc->sc_ioh = ioh; 125 sc->sc_dmat = ia->ia_dmat; 126 if (!aha_find(iot, ioh, &apd)) 127 panic("aha_isa_attach: aha_find failed"); 128 129 if (apd.sc_drq != -1) 130 isa_dmacascade(parent, apd.sc_drq); 131 132 sc->sc_ih = isa_intr_establish(ic, apd.sc_irq, IST_EDGE, IPL_BIO, 133 aha_intr, sc); 134 if (sc->sc_ih == NULL) { 135 printf("%s: couldn't establish interrupt\n", 136 sc->sc_dev.dv_xname); 137 return; 138 } 139 140 aha_attach(sc, &apd); 141 } 142