1 /* $NetBSD: dpt_eisa.c,v 1.6 2001/11/13 12:47:33 lukem 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 1.6 2001/11/13 12:47:33 lukem 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 #define DPT_EISA_SLOT_OFFSET 0x0c00 54 #define DPT_EISA_IOSIZE 0x0100 55 #define DPT_EISA_IOCONF 0x90 56 #define DPT_EISA_EATA_REG_OFFSET 0x88 57 58 static void dpt_eisa_attach(struct device *, struct device *, void *); 59 static int dpt_eisa_irq(bus_space_tag_t, bus_space_handle_t, int *); 60 static int dpt_eisa_match(struct device *, struct cfdata *, void *); 61 62 struct cfattach dpt_eisa_ca = { 63 sizeof(struct dpt_softc), dpt_eisa_match, dpt_eisa_attach 64 }; 65 66 static const char * const dpt_eisa_boards[] = { 67 "DPT2402", 68 "DPTA401", 69 "DPTA402", 70 "DPTA410", 71 "DPTA411", 72 "DPTA412", 73 "DPTA420", 74 "DPTA501", 75 "DPTA502", 76 "DPTA701", 77 "DPTBC01", 78 "NEC8200", /* OEM */ 79 "ATT2408", /* OEM */ 80 NULL 81 }; 82 83 static int 84 dpt_eisa_irq(bus_space_tag_t iot, bus_space_handle_t ioh, int *irq) 85 { 86 87 switch (bus_space_read_1(iot, ioh, DPT_EISA_IOCONF) & 0x38) { 88 case 0x08: 89 *irq = 11; 90 break; 91 case 0x10: 92 *irq = 15; 93 break; 94 case 0x20: 95 *irq = 14; 96 break; 97 default: 98 return (-1); 99 } 100 101 return (0); 102 } 103 104 static int 105 dpt_eisa_match(struct device *parent, struct cfdata *match, void *aux) 106 { 107 struct eisa_attach_args *ea; 108 int i; 109 110 ea = aux; 111 112 for (i = 0; dpt_eisa_boards[i] != NULL; i++) 113 if (strcmp(ea->ea_idstring, dpt_eisa_boards[i]) == 0) 114 break; 115 116 return (dpt_eisa_boards[i] != NULL); 117 } 118 119 static void 120 dpt_eisa_attach(struct device *parent, struct device *self, void *aux) 121 { 122 struct eisa_attach_args *ea; 123 bus_space_handle_t ioh; 124 eisa_chipset_tag_t ec; 125 eisa_intr_handle_t ih; 126 struct dpt_softc *sc; 127 bus_space_tag_t iot; 128 const char *intrstr; 129 int irq; 130 131 ea = aux; 132 sc = (struct dpt_softc *)self; 133 iot = ea->ea_iot; 134 ec = ea->ea_ec; 135 136 printf(": "); 137 138 if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) + 139 DPT_EISA_SLOT_OFFSET, DPT_EISA_IOSIZE, 0, &ioh)) { 140 printf("can't map i/o space\n"); 141 return; 142 } 143 144 sc->sc_iot = iot; 145 sc->sc_ioh = ioh; 146 sc->sc_dmat = ea->ea_dmat; 147 148 /* Map and establish the interrupt. */ 149 if (dpt_eisa_irq(iot, ioh, &irq)) { 150 printf("HBA on invalid IRQ\n"); 151 return; 152 } 153 154 if (eisa_intr_map(ec, irq, &ih)) { 155 printf("can't map interrupt (%d)\n", irq); 156 return; 157 } 158 159 intrstr = eisa_intr_string(ec, ih); 160 sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO, 161 dpt_intr, sc); 162 if (sc->sc_ih == NULL) { 163 printf("can't establish interrupt"); 164 if (intrstr != NULL) 165 printf(" at %s", intrstr); 166 printf("\n"); 167 return; 168 } 169 170 /* Read the EATA configuration. */ 171 if (dpt_readcfg(sc)) { 172 printf("%s: readcfg failed - see dpt(4)\n", 173 sc->sc_dv.dv_xname); 174 return; 175 } 176 177 /* Now attach to the bus-independent code. */ 178 dpt_init(sc, intrstr); 179 } 180