1 /* $NetBSD: aha_mca.c,v 1.22 2009/09/22 13:22:53 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 2000-2002 The NetBSD Foundation, Inc. 5 * Copyright (c) 1996-1999 Scott D. Telford. 6 * Copyright (c) 1994, 1996 Charles M. Hannum. All rights reserved. 7 * Portions: 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by Charles M. Hannum. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* 36 * Originally written by Julian Elischer (julian (at) tfs.com) 37 * for TRW Financial Systems for use under the MACH(2.5) operating system. 38 * 39 * TRW Financial Systems, in accordance with their agreement with Carnegie 40 * Mellon University, makes this software available to CMU to distribute 41 * or use in any manner that they see fit as long as this message is kept with 42 * the software. For this reason TFS also grants any other persons or 43 * organisations permission to use or modify this software. 44 * 45 * TFS supplies this software to be publicly redistributed 46 * on the understanding that TFS is not responsible for the correct 47 * functioning of this software in any circumstances. 48 */ 49 50 /* 51 * AHA-1640 MCA bus code by Scott Telford 52 */ 53 54 #include <sys/cdefs.h> 55 __KERNEL_RCSID(0, "$NetBSD: aha_mca.c,v 1.22 2009/09/22 13:22:53 tsutsui Exp $"); 56 57 #include <sys/param.h> 58 #include <sys/systm.h> 59 #include <sys/device.h> 60 61 #include <sys/bus.h> 62 #include <sys/intr.h> 63 64 #include <dev/scsipi/scsi_all.h> 65 #include <dev/scsipi/scsipi_all.h> 66 #include <dev/scsipi/scsiconf.h> 67 68 #include <dev/isa/isavar.h> 69 #include <dev/isa/isadmavar.h> 70 71 #include <dev/ic/ahareg.h> 72 #include <dev/ic/ahavar.h> 73 74 #include <dev/mca/mcareg.h> 75 #include <dev/mca/mcavar.h> 76 #include <dev/mca/mcadevs.h> 77 78 #define AHA_ISA_IOSIZE 4 79 80 static int aha_mca_probe(device_t, cfdata_t, void *); 81 static void aha_mca_attach(device_t, device_t, void *); 82 83 CFATTACH_DECL_NEW(aha_mca, sizeof(struct aha_softc), 84 aha_mca_probe, aha_mca_attach, NULL, NULL); 85 86 int 87 aha_mca_probe(device_t parent, cfdata_t match, void *aux) 88 { 89 register struct mca_attach_args *ma = aux; 90 91 if (ma->ma_id == MCA_PRODUCT_AHA1640) 92 return (1); 93 94 return (0); 95 } 96 97 98 void 99 aha_mca_attach(device_t parent, device_t self, void *aux) 100 { 101 struct mca_attach_args *ma = aux; 102 struct aha_softc *sc = device_private(self); 103 bus_space_tag_t iot = ma->ma_iot; 104 bus_space_handle_t ioh; 105 struct aha_probe_data apd; 106 mca_chipset_tag_t mc = ma->ma_mc; 107 bus_addr_t iobase; 108 109 sc->sc_dev =self; 110 111 /* 112 * POS registers differ much between 8003 and 8013, so they are 113 * divided to two sections. 114 * 115 * POS register 2: (adf pos0) 116 * 7 6 5 4 3 2 1 0 117 * | 0 0 0 0 0 0 \__ enable: 0=adapter disabled, 1=adapter enabled 118 * \_______________ Adapter BIOS location 119 * 120 * POS register 3: (adf pos1) 121 * 7 6 5 4 3 2 1 0 122 * \_/ \___/ \___/ 123 * | | \__ I/O Port Address (upper part) 124 * | |__________ Adapter BIOS location 125 * |_______________ I/O Port Address (lower part) 126 * 127 * POS register 4: (adf pos2) 128 * 7 6 5 4 3 2 1 0 129 * \___/ | | \___/ 130 * | | | \__ IRQ: XXX+8 131 * | | |________ Sync xfer started by AHA-1640: 1=YES 2=NO 132 * | |__________ SCSI Parity Checking On/Off 133 * |______________ SCSI Address 134 * 135 * POS register 3: (adf pos3) 136 * 7 6 5 4 3 2 1 0 137 * | \_____/ 138 * | \__ Arbitration lvl (DMA channel) 139 * |__________ Fairness On/Off 140 * 141 */ 142 143 apd.sc_irq = (ma->ma_pos[4] & 0x7) + 8; 144 apd.sc_drq = ma->ma_pos[5] & 0xf; 145 apd.sc_scsi_dev = (ma->ma_pos[4] & 0xe0) >> 5; 146 147 printf(" slot %d irq %d drq %d: Adaptec AHA-1640 SCSI Adapter\n", 148 ma->ma_slot + 1, 149 apd.sc_irq, apd.sc_drq); 150 151 iobase = ((ma->ma_pos[3] & 0x03) << 8) + 0x30 + 152 ((ma->ma_pos[3] & 0x40) >> 4); 153 154 if (bus_space_map(iot, iobase, AHA_ISA_IOSIZE, 0, &ioh)) { 155 aprint_error_dev(self, "can't map i/o space\n"); 156 return; 157 } 158 159 sc->sc_iot = iot; 160 sc->sc_ioh = ioh; 161 sc->sc_dmat = ma->ma_dmat; 162 163 /* 164 * AHA1640 is bus-mastering card, does not need any assistance 165 * with DMA transfers by MCA DMA controller. 166 */ 167 168 sc->sc_ih = mca_intr_establish(mc, apd.sc_irq, IPL_BIO, aha_intr, sc); 169 if (sc->sc_ih == NULL) { 170 aprint_error_dev(self, "couldn't establish interrupt\n"); 171 return; 172 } 173 174 aha_attach(sc, &apd); 175 } 176
Indexes created Sun Sep 21 20:09:37 GMT 2025