siop_pci.c revision 1.1
1 /* $NetBSD: siop_pci.c,v 1.1 2000/04/21 17:57:00 bouyer Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Manuel Bouyer. 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 the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 */ 35 36 /* SYM53c8xx PCI-SCSI I/O Processors driver: PCI front-end */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/device.h> 41 #include <sys/malloc.h> 42 #include <sys/buf.h> 43 #include <sys/kernel.h> 44 45 #include <machine/endian.h> 46 47 #include <dev/pci/pcireg.h> 48 #include <dev/pci/pcivar.h> 49 #include <dev/pci/pcidevs.h> 50 51 #include <dev/scsipi/scsipi_all.h> 52 #include <dev/scsipi/scsipiconf.h> 53 54 #include <dev/ic/siopvar.h> 55 56 /* structure describing each chip */ 57 struct siop_product_desc { 58 u_int32_t product; 59 int revision; 60 const char *name; 61 int features; /* features are defined in siopvar.h */ 62 u_int8_t maxburst; 63 u_int8_t maxoff; 64 u_int8_t clock_div; 65 }; 66 67 /* List (array, really :) of chips we know how to handle */ 68 const struct siop_product_desc siop_products[] = { 69 { PCI_PRODUCT_SYMBIOS_810, 70 0x00, 71 "Symbios Logic 53c810 (fast scsi)", 72 SF_PCI_RL, 73 4, 8, 4 74 }, 75 { PCI_PRODUCT_SYMBIOS_810, 76 0x10, 77 "Symbios Logic 53c810a (fast scsi)", 78 SF_PCI_RL | SF_PCI_BOF | SF_CHIP_PF, 79 4, 8, 4 80 }, 81 { PCI_PRODUCT_SYMBIOS_815, 82 0x00, 83 "Symbios Logic 53c815 (fast scsi)", 84 SF_PCI_RL | SF_PCI_BOF, 85 4, 8, 4 86 }, 87 { PCI_PRODUCT_SYMBIOS_820, 88 0x00, 89 "Symbios Logic 53c820 (fast wide scsi)", 90 SF_PCI_RL | SF_BUS_WIDE, 91 4, 8, 4 92 }, 93 { PCI_PRODUCT_SYMBIOS_825, 94 0x00, 95 "Symbios Logic 53c825 (fast wide scsi)", 96 SF_PCI_RL | SF_PCI_BOF | SF_BUS_WIDE, 97 4, 8, 4 98 }, 99 { PCI_PRODUCT_SYMBIOS_825, 100 0x10, 101 "Symbios Logic 53c825a (fast wide scsi)", 102 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 103 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | 104 SF_BUS_WIDE, 105 7, 8, 4 106 }, 107 { PCI_PRODUCT_SYMBIOS_860, 108 0x00, 109 "Symbios Logic 53c860 (ultra scsi)", 110 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 111 SF_CHIP_PF | SF_CHIP_CLK80 | 112 SF_BUS_ULTRA, 113 4, 8, 5 114 }, 115 { PCI_PRODUCT_SYMBIOS_875, 116 0x00, 117 "Symbios Logic 53c875 (ultra-wide scsi)", 118 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 119 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | SF_CHIP_CLK80 | 120 SF_BUS_ULTRA | SF_BUS_WIDE, 121 7, 16, 5 122 }, 123 { PCI_PRODUCT_SYMBIOS_875, 124 0x02, 125 "Symbios Logic 53c875 (ultra-wide scsi)", 126 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 127 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | SF_CHIP_DBLR | 128 SF_BUS_ULTRA | SF_BUS_WIDE, 129 7, 16, 5 130 }, 131 { PCI_PRODUCT_SYMBIOS_875J, 132 0x00, 133 "Symbios Logic 53c875j (ultra-wide scsi)", 134 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 135 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | SF_CHIP_DBLR | 136 SF_BUS_ULTRA | SF_BUS_WIDE, 137 7, 16, 5 138 }, 139 { PCI_PRODUCT_SYMBIOS_885, 140 0x00, 141 "Symbios Logic 53c885 (ultra-wide scsi)", 142 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 143 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | SF_CHIP_DBLR | 144 SF_BUS_ULTRA | SF_BUS_WIDE, 145 7, 16, 5 146 }, 147 { PCI_PRODUCT_SYMBIOS_895, 148 0x00, 149 "Symbios Logic 53c895 (ultra2-wide scsi)", 150 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 151 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | SF_CHIP_QUAD | 152 SF_BUS_ULTRA2 | SF_BUS_WIDE, 153 7, 31, 7 154 }, 155 { PCI_PRODUCT_SYMBIOS_896, 156 0x00, 157 "Symbios Logic 53c896 (ultra2-wide scsi)", 158 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 159 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | SF_CHIP_QUAD | 160 SF_BUS_ULTRA2 | SF_BUS_WIDE, 161 7, 31, 7 162 }, 163 { 0, 164 0x00, 165 NULL, 166 0x00, 167 7, 31, 7 168 }, 169 }; 170 171 const struct siop_product_desc * siop_lookup_product __P((u_int32_t, int)); 172 173 const struct siop_product_desc * 174 siop_lookup_product(id, rev) 175 u_int32_t id; 176 int rev; 177 { 178 const struct siop_product_desc *pp; 179 const struct siop_product_desc *rp = NULL; 180 for (pp = siop_products; pp->name != NULL; pp++) { 181 if (PCI_PRODUCT(id) == pp->product && pp->revision <= rev) 182 if (rp == NULL || pp->revision > rp->revision) 183 rp = pp; 184 } 185 return rp; 186 } 187 188 /* Driver internal state */ 189 struct siop_pci_softc { 190 struct siop_softc siop; 191 pci_chipset_tag_t sc_pc; /* PCI registers info */ 192 pcitag_t sc_tag; 193 void *sc_ih; /* PCI interrupt handle */ 194 const struct siop_product_desc *sc_pp; /* Adapter description */ 195 }; 196 197 int siop_pci_match __P((struct device *, struct cfdata *, void *)); 198 void siop_pci_attach __P((struct device *, struct device *, void *)); 199 200 struct cfattach siop_pci_ca = { 201 sizeof(struct siop_pci_softc), siop_pci_match, siop_pci_attach 202 }; 203 204 int 205 siop_pci_match(parent, match, aux) 206 struct device *parent; 207 struct cfdata *match; 208 void *aux; 209 { 210 struct pci_attach_args *pa = aux; 211 const struct siop_product_desc *pp; 212 213 /* look if it's a known product */ 214 pp = siop_lookup_product(pa->pa_id, PCI_REVISION(pa->pa_class)); 215 if (pp) 216 return 1; 217 return 0; 218 } 219 220 void 221 siop_pci_attach(parent, self, aux) 222 struct device *parent, *self; 223 void *aux; 224 { 225 struct pci_attach_args *pa = aux; 226 pci_chipset_tag_t pc = pa->pa_pc; 227 pcitag_t tag = pa->pa_tag; 228 struct siop_pci_softc *sc = (struct siop_pci_softc *)self; 229 const char *intrstr; 230 pci_intr_handle_t intrhandle; 231 232 sc->sc_pp = siop_lookup_product(pa->pa_id, PCI_REVISION(pa->pa_class)); 233 if (sc->sc_pp == NULL) { 234 printf("sym: broken match/attach!!\n"); 235 return; 236 } 237 printf(": %s\n", sc->sc_pp->name); 238 sc->sc_pc = pc; 239 sc->sc_tag = tag; 240 sc->siop.sc_dmat = pa->pa_dmat; 241 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0, 242 &sc->siop.sc_rt, &sc->siop.sc_rh, &sc->siop.sc_raddr, NULL) != 0) { 243 /* Try to map memory addr */ 244 if (pci_mapreg_map(pa, 0x14, 245 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 246 &sc->siop.sc_rt, &sc->siop.sc_rh, 247 &sc->siop.sc_raddr, NULL) != 0) { 248 printf("%s: unable to map device registers\n", 249 sc->siop.sc_dev.dv_xname); 250 } 251 } 252 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 253 pa->pa_intrline, &intrhandle) != 0) { 254 printf("%s: couldn't map native-PCI interrupt\n", 255 sc->siop.sc_dev.dv_xname); 256 return; 257 } 258 intrstr = pci_intr_string(pa->pa_pc, intrhandle); 259 sc->sc_ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_BIO, 260 siop_intr, &sc->siop); 261 if (sc->sc_ih != NULL) { 262 printf("%s: using %s for native-PCI interrupt\n", 263 sc->siop.sc_dev.dv_xname, 264 intrstr ? intrstr : "unknown interrupt"); 265 } else { 266 printf("%s: couldn't establish interrupt", 267 sc->siop.sc_dev.dv_xname); 268 if (intrstr != NULL) 269 printf(" at %s", intrstr); 270 printf("\n"); 271 return; 272 } 273 /* copy interesting infos about the chip */ 274 sc->siop.features = sc->sc_pp->features; 275 sc->siop.maxburst = sc->sc_pp->maxburst; 276 sc->siop.maxoff = sc->sc_pp->maxoff; 277 sc->siop.clock_div = sc->sc_pp->clock_div; 278 /* attach generic code */ 279 siop_attach(&sc->siop); 280 } 281
Indexes created Sun Sep 28 12:09:53 GMT 2025