aic_isa.c revision 1.8
1 /* $NetBSD: aic_isa.c,v 1.8 2001/11/13 08:01:09 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 1994, 1995, 1996 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 * Copyright (c) 1994 Jarle Greipsland 21 * All rights reserved. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the above copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. The name of the author may not be used to endorse or promote products 32 * derived from this software without specific prior written permission. 33 * 34 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 35 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 36 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 37 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 38 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 39 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 40 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 41 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 42 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 43 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 44 * POSSIBILITY OF SUCH DAMAGE. 45 */ 46 47 /* 48 * Acknowledgements: Many of the algorithms used in this driver are 49 * inspired by the work of Julian Elischer (julian (at) tfs.com) and 50 * Charles Hannum (mycroft (at) duality.gnu.ai.mit.edu). Thanks a million! 51 */ 52 53 #include <sys/cdefs.h> 54 __KERNEL_RCSID(0, "$NetBSD: aic_isa.c,v 1.8 2001/11/13 08:01:09 lukem Exp $"); 55 56 #include <sys/types.h> 57 #include <sys/param.h> 58 #include <sys/systm.h> 59 #include <sys/kernel.h> 60 #include <sys/errno.h> 61 #include <sys/ioctl.h> 62 #include <sys/device.h> 63 #include <sys/buf.h> 64 #include <sys/proc.h> 65 #include <sys/user.h> 66 #include <sys/queue.h> 67 68 #include <machine/bus.h> 69 #include <machine/intr.h> 70 71 #include <dev/scsipi/scsi_all.h> 72 #include <dev/scsipi/scsipi_all.h> 73 #include <dev/scsipi/scsiconf.h> 74 75 #include <dev/isa/isavar.h> 76 77 #include <dev/ic/aic6360reg.h> 78 #include <dev/ic/aic6360var.h> 79 80 int aic_isa_probe __P((struct device *, struct cfdata *, void *)); 81 82 struct aic_isa_softc { 83 struct aic_softc sc_aic; /* real "aic" softc */ 84 85 /* ISA-specific goo. */ 86 void *sc_ih; /* interrupt handler */ 87 }; 88 89 struct cfattach aic_isa_ca = { 90 sizeof(struct aic_isa_softc), aic_isa_probe, aic_isa_attach 91 }; 92 93 94 /* 96 * INITIALIZATION ROUTINES (probe, attach ++) 97 */ 98 99 /* 100 * aic_isa_probe: probe for AIC6360 SCSI-controller 101 * returns non-zero value if a controller is found. 102 */ 103 int 104 aic_isa_probe(parent, match, aux) 105 struct device *parent; 106 struct cfdata *match; 107 void *aux; 108 { 109 struct isa_attach_args *ia = aux; 110 bus_space_tag_t iot = ia->ia_iot; 111 bus_space_handle_t ioh; 112 int rv; 113 114 /* Disallow wildcarded i/o address. */ 115 if (ia->ia_iobase == ISACF_PORT_DEFAULT) 116 return (0); 117 118 if (bus_space_map(iot, ia->ia_iobase, AIC_ISA_IOSIZE, 0, &ioh)) 119 return (0); 120 121 AIC_TRACE(("aic_isa_probe: port 0x%x\n", ia->ia_iobase)); 122 rv = aic_find(iot, ioh); 123 124 bus_space_unmap(iot, ioh, AIC_ISA_IOSIZE); 125 126 if (rv) { 127 ia->ia_msize = 0; 128 ia->ia_iosize = AIC_ISA_IOSIZE; 129 } 130 return rv; 131 } 132 133 void 134 aic_isa_attach(parent, self, aux) 135 struct device *parent, *self; 136 void *aux; 137 { 138 struct isa_attach_args *ia = aux; 139 struct aic_isa_softc *isc = (void *)self; 140 struct aic_softc *sc = &isc->sc_aic; 141 bus_space_tag_t iot = ia->ia_iot; 142 bus_space_handle_t ioh; 143 isa_chipset_tag_t ic = ia->ia_ic; 144 145 printf("\n"); 146 147 if (bus_space_map(iot, ia->ia_iobase, AIC_ISA_IOSIZE, 0, &ioh)) { 148 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 149 return; 150 } 151 152 sc->sc_iot = iot; 153 sc->sc_ioh = ioh; 154 AIC_TRACE(("aic_isa_attach: port 0x%x\n", ia->ia_iobase)); 155 if (!aic_find(iot, ioh)) { 156 printf("%s: aic_find failed", sc->sc_dev.dv_xname); 157 return; 158 } 159 160 isc->sc_ih = isa_intr_establish(ic, ia->ia_irq, IST_EDGE, IPL_BIO, 161 aicintr, sc); 162 if (isc->sc_ih == NULL) { 163 printf("%s: couldn't establish interrupt\n", 164 sc->sc_dev.dv_xname); 165 return; 166 } 167 168 aicattach(sc); 169 } 170
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