Annotation of sys/dev/eisa/dpt_eisa.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: dpt_eisa.c,v 1.3 2003/10/21 10:27:12 jmc Exp $ */
! 2: /* $NetBSD: dpt_eisa.c,v 1.2 1999/10/18 21:59:19 ad Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1999 Andy Doran <ad@NetBSD.org>
! 6: * All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: *
! 29: */
! 30:
! 31: /*
! 32: * EISA front-end for DPT EATA SCSI driver.
! 33: */
! 34:
! 35: #include <sys/cdefs.h>
! 36: #ifdef __NetBSD__
! 37: __KERNEL_RCSID(0, "$NetBSD: dpt_eisa.c,v 1.2 1999/10/18 21:59:19 ad Exp $");
! 38: #endif /* __NetBSD__ */
! 39:
! 40: #include <sys/types.h>
! 41: #include <sys/param.h>
! 42: #include <sys/systm.h>
! 43: #include <sys/device.h>
! 44:
! 45: #include <machine/bus.h>
! 46: #include <machine/intr.h>
! 47:
! 48: #ifdef __NetBSD__
! 49: #include <dev/scsipi/scsi_all.h>
! 50: #include <dev/scsipi/scsipi_all.h>
! 51: #include <dev/scsipi/scsiconf.h>
! 52: #endif /* __NetBSD__ */
! 53: #ifdef __OpenBSD__
! 54: #include <scsi/scsi_all.h>
! 55: #include <scsi/scsiconf.h>
! 56: #endif /* __OpenBSD__ */
! 57:
! 58: #include <dev/eisa/eisavar.h>
! 59: #include <dev/eisa/eisadevs.h>
! 60:
! 61: #include <dev/ic/dptreg.h>
! 62: #include <dev/ic/dptvar.h>
! 63:
! 64: #define DPT_EISA_SLOT_OFFSET 0x0c00
! 65: #define DPT_EISA_IOSIZE 0x0100
! 66: #define DPT_EISA_IOCONF 0x90
! 67: #define DPT_EISA_EATA_REG_OFFSET 0x88
! 68:
! 69: int dpt_eisa_irq(bus_space_tag_t, bus_space_handle_t, int *);
! 70: #ifdef __NetBSD__
! 71: int dpt_eisa_match(struct device *, struct cfdata *, void *);
! 72: #endif /* __NetBSD__ */
! 73: #ifdef __OpenBSD__
! 74: int dpt_eisa_match(struct device *, void *, void *);
! 75: #endif /* __OpenBSD__ */
! 76: void dpt_eisa_attach(struct device *, struct device *, void *);
! 77:
! 78: struct cfattach dpt_eisa_ca = {
! 79: sizeof(struct dpt_softc), dpt_eisa_match, dpt_eisa_attach
! 80: };
! 81:
! 82: const char *dpt_eisa_boards[] = {
! 83: "DPT2402",
! 84: "DPTA401",
! 85: "DPTA402",
! 86: "DPTA410",
! 87: "DPTA411",
! 88: "DPTA412",
! 89: "DPTA420",
! 90: "DPTA501",
! 91: "DPTA502",
! 92: "DPTA701",
! 93: "DPTBC01",
! 94: "NEC8200", /* OEM */
! 95: "ATT2408", /* OEM */
! 96: NULL
! 97: };
! 98:
! 99: int
! 100: dpt_eisa_irq(iot, ioh, irq)
! 101: bus_space_tag_t iot;
! 102: bus_space_handle_t ioh;
! 103: int *irq;
! 104: {
! 105:
! 106: switch (bus_space_read_1(iot, ioh, DPT_EISA_IOCONF) & 0x38) {
! 107: case 0x08:
! 108: *irq = 11;
! 109: break;
! 110: case 0x10:
! 111: *irq = 15;
! 112: break;
! 113: case 0x20:
! 114: *irq = 14;
! 115: break;
! 116: default:
! 117: return (-1);
! 118: }
! 119:
! 120: return (0);
! 121: }
! 122:
! 123: int
! 124: dpt_eisa_match(parent, match, aux)
! 125: struct device *parent;
! 126: #ifdef __NetBSD__
! 127: struct cfdata *match;
! 128: #endif /* __NetBSD__ */
! 129: #ifdef __OpenBSD__
! 130: void *match;
! 131: #endif /* __OpenBSD__ */
! 132: void *aux;
! 133: {
! 134: struct eisa_attach_args *ea;
! 135: int i;
! 136:
! 137: ea = aux;
! 138:
! 139: for (i = 0; dpt_eisa_boards[i] != NULL; i++)
! 140: if (strcmp(ea->ea_idstring, dpt_eisa_boards[i]) == 0)
! 141: break;
! 142:
! 143: return (dpt_eisa_boards[i] != NULL);
! 144: }
! 145:
! 146: void
! 147: dpt_eisa_attach(parent, self, aux)
! 148: struct device *parent, *self;
! 149: void *aux;
! 150: {
! 151: struct eisa_attach_args *ea;
! 152: bus_space_handle_t ioh;
! 153: eisa_chipset_tag_t ec;
! 154: eisa_intr_handle_t ih;
! 155: struct dpt_softc *sc;
! 156: bus_space_tag_t iot;
! 157: const char *intrstr;
! 158: int irq;
! 159:
! 160: ea = aux;
! 161: sc = (struct dpt_softc *)self;
! 162: iot = ea->ea_iot;
! 163: ec = ea->ea_ec;
! 164:
! 165: printf(": ");
! 166:
! 167: if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) +
! 168: DPT_EISA_SLOT_OFFSET, DPT_EISA_IOSIZE, 0, &ioh)) {
! 169: printf("can't map i/o space\n");
! 170: return;
! 171: }
! 172:
! 173: sc->sc_iot = iot;
! 174: sc->sc_ioh = ioh;
! 175: sc->sc_dmat = ea->ea_dmat;
! 176:
! 177: /* Map and establish the interrupt. */
! 178: if (dpt_eisa_irq(iot, ioh, &irq)) {
! 179: printf("HBA on invalid IRQ (%d)\n", irq);
! 180: return;
! 181: }
! 182:
! 183: if (eisa_intr_map(ec, irq, &ih)) {
! 184: printf("can't map interrupt (%d)\n", irq);
! 185: return;
! 186: }
! 187:
! 188: intrstr = eisa_intr_string(ec, ih);
! 189: #ifdef __NetBSD__
! 190: sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO,
! 191: dpt_intr, sc);
! 192: #endif /* __NetBSD__ */
! 193: #ifdef __OpenBSD__
! 194: sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO,
! 195: dpt_intr, sc, sc->sc_dv.dv_xname);
! 196: #endif /* __OpenBSD__ */
! 197: if (sc->sc_ih == NULL) {
! 198: printf("can't establish interrupt");
! 199: if (intrstr != NULL)
! 200: printf(" at %s", intrstr);
! 201: printf("\n");
! 202: return;
! 203: }
! 204:
! 205: /* Read the EATA configuration */
! 206: if (dpt_readcfg(sc)) {
! 207: printf("%s: readcfg failed - see dpt(4)\n",
! 208: sc->sc_dv.dv_xname);
! 209: return;
! 210: }
! 211:
! 212: /* Now attach to the bus-independent code */
! 213: dpt_init(sc, intrstr);
! 214: }
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