bha_eisa.c revision 1.15
1 /* $NetBSD: bha_eisa.c,v 1.15 1998/08/15 02:37:51 mycroft Exp $ */ 2 3 /* 4 * Copyright (c) 1994, 1996, 1997, 1998 Charles M. Hannum. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Charles M. Hannum. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/types.h> 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/device.h> 36 37 #include <machine/bus.h> 38 #include <machine/intr.h> 39 40 #include <dev/scsipi/scsi_all.h> 41 #include <dev/scsipi/scsipi_all.h> 42 #include <dev/scsipi/scsiconf.h> 43 44 #include <dev/eisa/eisavar.h> 45 #include <dev/eisa/eisadevs.h> 46 47 #include <dev/ic/bhareg.h> 48 #include <dev/ic/bhavar.h> 49 50 #define BHA_EISA_SLOT_OFFSET 0x0c80 51 #define BHA_EISA_IOSIZE 0x0010 52 #define BHA_ISA_IOSIZE 0x0004 53 54 #define BHA_EISA_IOCONF 0x0c 55 56 int bha_eisa_address __P((bus_space_tag_t, bus_space_handle_t, int *)); 57 int bha_eisa_match __P((struct device *, struct cfdata *, void *)); 58 void bha_eisa_attach __P((struct device *, struct device *, void *)); 59 60 struct cfattach bha_eisa_ca = { 61 sizeof(struct bha_softc), bha_eisa_match, bha_eisa_attach 62 }; 63 64 int 65 bha_eisa_address(iot, ioh, portp) 66 bus_space_tag_t iot; 67 bus_space_handle_t ioh; 68 int *portp; 69 { 70 int port; 71 72 switch (bus_space_read_1(iot, ioh, BHA_EISA_IOCONF) & 0x07) { 73 case 0x00: 74 port = 0x330; 75 break; 76 case 0x01: 77 port = 0x334; 78 break; 79 case 0x02: 80 port = 0x230; 81 break; 82 case 0x03: 83 port = 0x234; 84 break; 85 case 0x04: 86 port = 0x130; 87 break; 88 case 0x05: 89 port = 0x134; 90 break; 91 default: 92 return (1); 93 } 94 95 *portp = port; 96 return (0); 97 } 98 99 /* 100 * Check the slots looking for a board we recognise 101 * If we find one, note it's address (slot) and call 102 * the actual probe routine to check it out. 103 */ 104 int 105 bha_eisa_match(parent, match, aux) 106 struct device *parent; 107 struct cfdata *match; 108 void *aux; 109 { 110 struct eisa_attach_args *ea = aux; 111 bus_space_tag_t iot = ea->ea_iot; 112 bus_space_handle_t ioh, ioh2; 113 int port; 114 int rv; 115 116 /* must match one of our known ID strings */ 117 if (strcmp(ea->ea_idstring, "BUS4201") && 118 strcmp(ea->ea_idstring, "BUS4202")) 119 return (0); 120 121 if (bus_space_map(iot, 122 EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE, 123 0, &ioh)) 124 return (0); 125 126 if (bha_eisa_address(iot, ioh, &port) || 127 bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2)) { 128 bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE); 129 return (0); 130 } 131 132 rv = bha_find(iot, ioh2, NULL); 133 134 bus_space_unmap(iot, ioh2, BHA_ISA_IOSIZE); 135 bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE); 136 137 return (rv); 138 } 139 140 /* 141 * Attach all the sub-devices we can find 142 */ 143 void 144 bha_eisa_attach(parent, self, aux) 145 struct device *parent, *self; 146 void *aux; 147 { 148 struct eisa_attach_args *ea = aux; 149 struct bha_softc *sc = (void *)self; 150 bus_space_tag_t iot = ea->ea_iot; 151 bus_space_handle_t ioh, ioh2; 152 int port; 153 struct bha_probe_data bpd; 154 eisa_chipset_tag_t ec = ea->ea_ec; 155 eisa_intr_handle_t ih; 156 const char *model, *intrstr; 157 158 if (!strcmp(ea->ea_idstring, "BUS4201")) 159 model = EISA_PRODUCT_BUS4201; 160 else if (!strcmp(ea->ea_idstring, "BUS4202")) 161 model = EISA_PRODUCT_BUS4202; 162 else 163 model = "unknown model!"; 164 printf(": %s\n", model); 165 166 if (bus_space_map(iot, 167 EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE, 168 0, &ioh)) 169 panic("bha_eisa_attach: could not map EISA slot"); 170 171 if (bha_eisa_address(iot, ioh, &port) || 172 bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2)) 173 panic("bha_eisa_attach: could not map ISA address"); 174 175 sc->sc_iot = iot; 176 sc->sc_ioh = ioh2; 177 sc->sc_dmat = ea->ea_dmat; 178 if (!bha_find(iot, ioh2, &bpd)) 179 panic("bha_eisa_attach: bha_find failed"); 180 181 sc->sc_dmaflags = 0; 182 183 if (eisa_intr_map(ec, bpd.sc_irq, &ih)) { 184 printf("%s: couldn't map interrupt (%d)\n", 185 sc->sc_dev.dv_xname, bpd.sc_irq); 186 return; 187 } 188 intrstr = eisa_intr_string(ec, ih); 189 sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO, 190 bha_intr, sc); 191 if (sc->sc_ih == NULL) { 192 printf("%s: couldn't establish interrupt", 193 sc->sc_dev.dv_xname); 194 if (intrstr != NULL) 195 printf(" at %s", intrstr); 196 printf("\n"); 197 return; 198 } 199 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 200 201 bha_attach(sc, &bpd); 202 } 203
Indexes created Fri Oct 03 02:09:57 GMT 2025