1 /* $NetBSD: dpt_eisa.c,v 1.10 2002/12/07 19:48:31 ad Exp $ */ 2 3 /* 4 * Copyright (c) 1999, 2000, 2001 Andrew Doran <ad@netbsd.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 */ 29 30 /* 31 * EISA front-end for DPT EATA SCSI driver. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: dpt_eisa.c,v 1.10 2002/12/07 19:48:31 ad Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 #include <sys/queue.h> 41 42 #include <machine/bus.h> 43 #include <machine/intr.h> 44 45 #include <dev/scsipi/scsipi_all.h> 46 #include <dev/scsipi/scsiconf.h> 47 48 #include <dev/eisa/eisavar.h> 49 50 #include <dev/ic/dptreg.h> 51 #include <dev/ic/dptvar.h> 52 53 #include <dev/i2o/dptivar.h> 54 55 #define DPT_EISA_SLOT_OFFSET 0x0c00 56 #define DPT_EISA_IOSIZE 0x0100 57 #define DPT_EISA_IOCONF 0x90 58 #define DPT_EISA_EATA_REG_OFFSET 0x88 59 60 static void dpt_eisa_attach(struct device *, struct device *, void *); 61 static int dpt_eisa_irq(bus_space_tag_t, bus_space_handle_t, int *); 62 static int dpt_eisa_match(struct device *, struct cfdata *, void *); 63 64 CFATTACH_DECL(dpt_eisa, sizeof(struct dpt_softc), 65 dpt_eisa_match, dpt_eisa_attach, NULL, NULL); 66 67 static const char * const dpt_eisa_boards[] = { 68 "DPT2402", 69 "DPTA401", 70 "DPTA402", 71 "DPTA410", 72 "DPTA411", 73 "DPTA412", 74 "DPTA420", 75 "DPTA501", 76 "DPTA502", 77 "DPTA701", 78 "DPTBC01", 79 "NEC8200", /* OEM */ 80 "ATT2408", /* OEM */ 81 NULL 82 }; 83 84 static int 85 dpt_eisa_irq(bus_space_tag_t iot, bus_space_handle_t ioh, int *irq) 86 { 87 88 switch (bus_space_read_1(iot, ioh, DPT_EISA_IOCONF) & 0x38) { 89 case 0x08: 90 *irq = 11; 91 break; 92 case 0x10: 93 *irq = 15; 94 break; 95 case 0x20: 96 *irq = 14; 97 break; 98 default: 99 return (-1); 100 } 101 102 return (0); 103 } 104 105 static int 106 dpt_eisa_match(struct device *parent, struct cfdata *match, void *aux) 107 { 108 struct eisa_attach_args *ea; 109 int i; 110 111 ea = aux; 112 113 for (i = 0; dpt_eisa_boards[i] != NULL; i++) 114 if (strcmp(ea->ea_idstring, dpt_eisa_boards[i]) == 0) 115 break; 116 117 return (dpt_eisa_boards[i] != NULL); 118 } 119 120 static void 121 dpt_eisa_attach(struct device *parent, struct device *self, void *aux) 122 { 123 struct eisa_attach_args *ea; 124 bus_space_handle_t ioh; 125 eisa_chipset_tag_t ec; 126 eisa_intr_handle_t ih; 127 struct dpt_softc *sc; 128 bus_space_tag_t iot; 129 const char *intrstr; 130 int irq; 131 132 ea = aux; 133 sc = (struct dpt_softc *)self; 134 iot = ea->ea_iot; 135 ec = ea->ea_ec; 136 137 printf(": "); 138 139 if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) + 140 DPT_EISA_SLOT_OFFSET, DPT_EISA_IOSIZE, 0, &ioh)) { 141 printf("can't map i/o space\n"); 142 return; 143 } 144 145 sc->sc_iot = iot; 146 sc->sc_ioh = ioh; 147 sc->sc_dmat = ea->ea_dmat; 148 149 /* Map and establish the interrupt. */ 150 if (dpt_eisa_irq(iot, ioh, &irq)) { 151 printf("HBA on invalid IRQ\n"); 152 return; 153 } 154 155 if (eisa_intr_map(ec, irq, &ih)) { 156 printf("can't map interrupt (%d)\n", irq); 157 return; 158 } 159 160 intrstr = eisa_intr_string(ec, ih); 161 sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO, 162 dpt_intr, sc); 163 if (sc->sc_ih == NULL) { 164 printf("can't establish interrupt"); 165 if (intrstr != NULL) 166 printf(" at %s", intrstr); 167 printf("\n"); 168 return; 169 } 170 171 /* Read the EATA configuration. */ 172 if (dpt_readcfg(sc)) { 173 printf("%s: readcfg failed - see dpt(4)\n", 174 sc->sc_dv.dv_xname); 175 return; 176 } 177 178 sc->sc_bustype = SI_EISA_BUS; 179 sc->sc_isaport = EISA_SLOT_ADDR(ea->ea_slot) + DPT_EISA_SLOT_OFFSET; 180 sc->sc_isairq = irq; 181 182 /* Now attach to the bus-independent code. */ 183 dpt_init(sc, intrstr); 184 } 185