Annotation of sys/dev/eisa/bha_eisa.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: bha_eisa.c,v 1.4 2007/04/10 17:47:55 miod Exp $ */
! 2: /* $NetBSD: bha_eisa.c,v 1.16 1998/08/15 10:10:49 mycroft Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1998 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to The NetBSD Foundation
! 9: * by Charles M. Hannum.
! 10: *
! 11: * Redistribution and use in source and binary forms, with or without
! 12: * modification, are permitted provided that the following conditions
! 13: * are met:
! 14: * 1. Redistributions of source code must retain the above copyright
! 15: * notice, this list of conditions and the following disclaimer.
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in the
! 18: * documentation and/or other materials provided with the distribution.
! 19: * 3. All advertising materials mentioning features or use of this software
! 20: * must display the following acknowledgement:
! 21: * This product includes software developed by the NetBSD
! 22: * Foundation, Inc. and its contributors.
! 23: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 24: * contributors may be used to endorse or promote products derived
! 25: * from this software without specific prior written permission.
! 26: *
! 27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 37: * POSSIBILITY OF SUCH DAMAGE.
! 38: */
! 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: #include <scsi/scsi_all.h>
! 49: #include <scsi/scsiconf.h>
! 50:
! 51: #include <dev/eisa/eisavar.h>
! 52: #include <dev/eisa/eisadevs.h>
! 53:
! 54: #include <dev/ic/bhareg.h>
! 55: #include <dev/ic/bhavar.h>
! 56:
! 57: #define BHA_EISA_SLOT_OFFSET 0x0c80
! 58: #define BHA_EISA_IOSIZE 0x0010
! 59: #define BHA_ISA_IOSIZE 0x0004
! 60:
! 61: #define BHA_EISA_IOCONF 0x0c
! 62:
! 63: int bha_eisa_address(bus_space_tag_t, bus_space_handle_t, int *);
! 64: int bha_eisa_match(struct device *, void *, void *);
! 65: void bha_eisa_attach(struct device *, struct device *, void *);
! 66:
! 67: struct cfattach bha_eisa_ca = {
! 68: sizeof(struct bha_softc), bha_eisa_match, bha_eisa_attach
! 69: };
! 70:
! 71: int
! 72: bha_eisa_address(iot, ioh, portp)
! 73: bus_space_tag_t iot;
! 74: bus_space_handle_t ioh;
! 75: int *portp;
! 76: {
! 77: int port;
! 78:
! 79: switch (bus_space_read_1(iot, ioh, BHA_EISA_IOCONF) & 0x07) {
! 80: case 0x00:
! 81: port = 0x330;
! 82: break;
! 83: case 0x01:
! 84: port = 0x334;
! 85: break;
! 86: case 0x02:
! 87: port = 0x230;
! 88: break;
! 89: case 0x03:
! 90: port = 0x234;
! 91: break;
! 92: case 0x04:
! 93: port = 0x130;
! 94: break;
! 95: case 0x05:
! 96: port = 0x134;
! 97: break;
! 98: default:
! 99: return (1);
! 100: }
! 101:
! 102: *portp = port;
! 103: return (0);
! 104: }
! 105:
! 106: /*
! 107: * Check the slots looking for a board we recognise
! 108: * If we find one, note its address (slot) and call
! 109: * the actual probe routine to check it out.
! 110: */
! 111: int
! 112: bha_eisa_match(parent, match, aux)
! 113: struct device *parent;
! 114: void *aux, *match;
! 115: {
! 116: struct eisa_attach_args *ea = aux;
! 117: bus_space_tag_t iot = ea->ea_iot;
! 118: bus_space_handle_t ioh, ioh2;
! 119: int port;
! 120: int rv;
! 121:
! 122: /* must match one of our known ID strings */
! 123: if (strcmp(ea->ea_idstring, "BUS4201") &&
! 124: strcmp(ea->ea_idstring, "BUS4202"))
! 125: return (0);
! 126:
! 127: if (bus_space_map(iot,
! 128: EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE,
! 129: 0, &ioh))
! 130: return (0);
! 131:
! 132: if (bha_eisa_address(iot, ioh, &port) ||
! 133: bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2)) {
! 134: bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE);
! 135: return (0);
! 136: }
! 137:
! 138: rv = bha_find(iot, ioh2, NULL);
! 139:
! 140: bus_space_unmap(iot, ioh2, BHA_ISA_IOSIZE);
! 141: bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE);
! 142:
! 143: return (rv);
! 144: }
! 145:
! 146: /*
! 147: * Attach all the sub-devices we can find
! 148: */
! 149: void
! 150: bha_eisa_attach(parent, self, aux)
! 151: struct device *parent, *self;
! 152: void *aux;
! 153: {
! 154: struct eisa_attach_args *ea = aux;
! 155: struct bha_softc *sc = (void *)self;
! 156: bus_space_tag_t iot = ea->ea_iot;
! 157: bus_space_handle_t ioh, ioh2;
! 158: int port;
! 159: struct bha_probe_data bpd;
! 160: eisa_chipset_tag_t ec = ea->ea_ec;
! 161: eisa_intr_handle_t ih;
! 162: const char *model, *intrstr;
! 163:
! 164: if (!strcmp(ea->ea_idstring, "BUS4201"))
! 165: model = EISA_PRODUCT_BUS4201;
! 166: else if (!strcmp(ea->ea_idstring, "BUS4202"))
! 167: model = EISA_PRODUCT_BUS4202;
! 168: else
! 169: model = "unknown model!";
! 170:
! 171: if (bus_space_map(iot,
! 172: EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE,
! 173: 0, &ioh)) {
! 174: printf(": could not map EISA slot\n");
! 175: return;
! 176: }
! 177:
! 178: if (bha_eisa_address(iot, ioh, &port) ||
! 179: bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2)) {
! 180: printf(": could not map ISA address\n");
! 181: return;
! 182: }
! 183:
! 184: sc->sc_iot = iot;
! 185: sc->sc_ioh = ioh2;
! 186: sc->sc_dmat = ea->ea_dmat;
! 187: if (!bha_find(iot, ioh2, &bpd)) {
! 188: printf(": bha_find failed\n");
! 189: return;
! 190: }
! 191:
! 192: sc->sc_dmaflags = 0;
! 193:
! 194: if (eisa_intr_map(ec, bpd.sc_irq, &ih)) {
! 195: printf(": couldn't map interrupt (%d)\n", bpd.sc_irq);
! 196: return;
! 197: }
! 198: intrstr = eisa_intr_string(ec, ih);
! 199: sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO,
! 200: bha_intr, sc, sc->sc_dev.dv_xname);
! 201: if (sc->sc_ih == NULL) {
! 202: printf(": couldn't establish interrupt");
! 203: if (intrstr != NULL)
! 204: printf(" at %s", intrstr);
! 205: printf("\n");
! 206: return;
! 207: }
! 208: printf(": %s, %s\n", intrstr, model);
! 209:
! 210: bha_attach(sc, &bpd);
! 211: }
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