1 /* $NetBSD: bha_eisa.c,v 1.27 2006/10/12 01:30:57 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: bha_eisa.c,v 1.27 2006/10/12 01:30:57 christos Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 46 #include <machine/bus.h> 47 #include <machine/intr.h> 48 49 #include <dev/scsipi/scsipi_all.h> 50 #include <dev/scsipi/scsiconf.h> 51 52 #include <dev/eisa/eisavar.h> 53 #include <dev/eisa/eisadevs.h> 54 55 #include <dev/ic/bhareg.h> 56 #include <dev/ic/bhavar.h> 57 58 #define BHA_EISA_SLOT_OFFSET 0x0c80 59 #define BHA_EISA_IOSIZE 0x0010 60 #define BHA_ISA_IOSIZE 0x0004 61 62 #define BHA_EISA_IOCONF 0x0c 63 64 static int bha_eisa_address(bus_space_tag_t, bus_space_handle_t, int *); 65 static int bha_eisa_match(struct device *, struct cfdata *, void *); 66 static void bha_eisa_attach(struct device *, struct device *, void *); 67 68 CFATTACH_DECL(bha_eisa, sizeof(struct bha_softc), 69 bha_eisa_match, bha_eisa_attach, NULL, NULL); 70 71 static int 72 bha_eisa_address(bus_space_tag_t iot, bus_space_handle_t ioh, int *portp) 73 { 74 int port; 75 76 switch (bus_space_read_1(iot, ioh, BHA_EISA_IOCONF) & 0x07) { 77 case 0x00: 78 port = 0x330; 79 break; 80 case 0x01: 81 port = 0x334; 82 break; 83 case 0x02: 84 port = 0x230; 85 break; 86 case 0x03: 87 port = 0x234; 88 break; 89 case 0x04: 90 port = 0x130; 91 break; 92 case 0x05: 93 port = 0x134; 94 break; 95 default: 96 return (1); 97 } 98 99 *portp = port; 100 return (0); 101 } 102 103 /* 104 * Check the slots looking for a board we recognise 105 * If we find one, note it's address (slot) and call 106 * the actual probe routine to check it out. 107 */ 108 static int 109 bha_eisa_match(struct device *parent __unused, struct cfdata *match __unused, 110 void *aux) 111 { 112 struct eisa_attach_args *ea = aux; 113 bus_space_tag_t iot = ea->ea_iot; 114 bus_space_handle_t ioh, ioh2; 115 int port; 116 int rv; 117 118 /* must match one of our known ID strings */ 119 if (strcmp(ea->ea_idstring, "BUS4201") && 120 strcmp(ea->ea_idstring, "BUS4202")) 121 return (0); 122 123 if (bus_space_map(iot, 124 EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE, 125 0, &ioh)) 126 return (0); 127 128 if (bha_eisa_address(iot, ioh, &port) || 129 bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2)) { 130 bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE); 131 return (0); 132 } 133 134 rv = bha_find(iot, ioh2); 135 136 bus_space_unmap(iot, ioh2, BHA_ISA_IOSIZE); 137 bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE); 138 139 return (rv); 140 } 141 142 /* 143 * Attach all the sub-devices we can find 144 */ 145 static void 146 bha_eisa_attach(struct device *parent __unused, struct device *self, void *aux) 147 { 148 struct eisa_attach_args *ea = aux; 149 struct bha_softc *sc = device_private(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_probe_inquiry(iot, ioh2, &bpd)) 179 panic("bha_eisa_attach 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); 202 } 203