1/* $NetBSD: dpt_eisa.c,v 1.24 2021/01/27 04:35:15 thorpej 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 1.24 2021/01/27 04:35:15 thorpej 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 <sys/bus.h> 43#include <sys/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 60static void dpt_eisa_attach(device_t, device_t, void *); 61static int dpt_eisa_irq(bus_space_tag_t, bus_space_handle_t, int *); 62static int dpt_eisa_match(device_t, cfdata_t, void *); 63 64CFATTACH_DECL_NEW(dpt_eisa, sizeof(struct dpt_softc), 65 dpt_eisa_match, dpt_eisa_attach, NULL, NULL); 66 67static const struct device_compatible_entry compat_data[] = { 68 { .compat = "DPT2402" }, 69 { .compat = "DPTA401" }, 70 { .compat = "DPTA402" }, 71 { .compat = "DPTA410" }, 72 { .compat = "DPTA411" }, 73 { .compat = "DPTA412" }, 74 { .compat = "DPTA420" }, 75 { .compat = "DPTA501" }, 76 { .compat = "DPTA502" }, 77 { .compat = "DPTA701" }, 78 { .compat = "DPTBC01" }, 79 { .compat = "NEC8200" }, /* OEM */ 80 { .compat = "ATT2408" }, /* OEM */ 81 DEVICE_COMPAT_EOL 82}; 83 84static int 85dpt_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 105static int 106dpt_eisa_match(device_t parent, cfdata_t match, void *aux) 107{ 108 struct eisa_attach_args *ea = aux; 109 110 return eisa_compatible_match(ea, compat_data); 111} 112 113static void 114dpt_eisa_attach(device_t parent, device_t self, void *aux) 115{ 116 struct eisa_attach_args *ea; 117 bus_space_handle_t ioh; 118 eisa_chipset_tag_t ec; 119 eisa_intr_handle_t ih; 120 struct dpt_softc *sc; 121 bus_space_tag_t iot; 122 const char *intrstr; 123 int irq; 124 char intrbuf[EISA_INTRSTR_LEN]; 125 126 ea = aux; 127 sc = device_private(self); 128 sc->sc_dev = self; 129 iot = ea->ea_iot; 130 ec = ea->ea_ec; 131 132 printf(": "); 133 134 if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) + 135 DPT_EISA_SLOT_OFFSET, DPT_EISA_IOSIZE, 0, &ioh)) { 136 aprint_error("can't map i/o space\n"); 137 return; 138 } 139 140 sc->sc_iot = iot; 141 sc->sc_ioh = ioh; 142 sc->sc_dmat = ea->ea_dmat; 143 144 /* Map and establish the interrupt. */ 145 if (dpt_eisa_irq(iot, ioh, &irq)) { 146 aprint_error("HBA on invalid IRQ\n"); 147 return; 148 } 149 150 if (eisa_intr_map(ec, irq, &ih)) { 151 aprint_error("can't map interrupt (%d)\n", irq); 152 return; 153 } 154 155 intrstr = eisa_intr_string(ec, ih, intrbuf, sizeof(intrbuf)); 156 sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO, 157 dpt_intr, sc); 158 if (sc->sc_ih == NULL) { 159 aprint_error("can't establish interrupt"); 160 if (intrstr != NULL) 161 aprint_error(" at %s", intrstr); 162 aprint_error("\n"); 163 return; 164 } 165 166 /* Read the EATA configuration. */ 167 if (dpt_readcfg(sc)) { 168 aprint_error_dev(sc->sc_dev, "readcfg failed - see dpt(4)\n"); 169 return; 170 } 171 172 sc->sc_bustype = SI_EISA_BUS; 173 sc->sc_isaport = EISA_SLOT_ADDR(ea->ea_slot) + DPT_EISA_SLOT_OFFSET; 174 sc->sc_isairq = irq; 175 176 /* Now attach to the bus-independent code. */ 177 dpt_init(sc, intrstr); 178} 179