siop_pci.c revision 1.3
1 /* $NetBSD: siop_pci.c,v 1.3 2000/05/02 03:59:35 nathanw 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 Manuel Bouyer 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 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 21 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 22 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 23 * AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 24 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33 /* SYM53c8xx PCI-SCSI I/O Processors driver: PCI front-end */ 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 #include <sys/malloc.h> 39 #include <sys/buf.h> 40 #include <sys/kernel.h> 41 42 #include <machine/endian.h> 43 44 #include <dev/pci/pcireg.h> 45 #include <dev/pci/pcivar.h> 46 #include <dev/pci/pcidevs.h> 47 48 #include <dev/scsipi/scsipi_all.h> 49 #include <dev/scsipi/scsipiconf.h> 50 51 #include <dev/ic/siopvar.h> 52 53 /* structure describing each chip */ 54 struct siop_product_desc { 55 u_int32_t product; 56 int revision; 57 const char *name; 58 int features; /* features are defined in siopvar.h */ 59 u_int8_t maxburst; 60 u_int8_t maxoff; 61 u_int8_t clock_div; 62 }; 63 64 /* List (array, really :) of chips we know how to handle */ 65 const struct siop_product_desc siop_products[] = { 66 { PCI_PRODUCT_SYMBIOS_810, 67 0x00, 68 "Symbios Logic 53c810 (fast scsi)", 69 SF_PCI_RL, 70 4, 8, 4 71 }, 72 { PCI_PRODUCT_SYMBIOS_810, 73 0x10, 74 "Symbios Logic 53c810a (fast scsi)", 75 SF_PCI_RL | SF_PCI_BOF | SF_CHIP_PF, 76 4, 8, 4 77 }, 78 { PCI_PRODUCT_SYMBIOS_815, 79 0x00, 80 "Symbios Logic 53c815 (fast scsi)", 81 SF_PCI_RL | SF_PCI_BOF, 82 4, 8, 4 83 }, 84 { PCI_PRODUCT_SYMBIOS_820, 85 0x00, 86 "Symbios Logic 53c820 (fast wide scsi)", 87 SF_PCI_RL | SF_BUS_WIDE, 88 4, 8, 4 89 }, 90 { PCI_PRODUCT_SYMBIOS_825, 91 0x00, 92 "Symbios Logic 53c825 (fast wide scsi)", 93 SF_PCI_RL | SF_PCI_BOF | SF_BUS_WIDE, 94 4, 8, 4 95 }, 96 { PCI_PRODUCT_SYMBIOS_825, 97 0x10, 98 "Symbios Logic 53c825a (fast wide scsi)", 99 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 100 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | 101 SF_BUS_WIDE, 102 7, 8, 4 103 }, 104 { PCI_PRODUCT_SYMBIOS_860, 105 0x00, 106 "Symbios Logic 53c860 (ultra scsi)", 107 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 108 SF_CHIP_PF | SF_CHIP_CLK80 | 109 SF_BUS_ULTRA, 110 4, 8, 5 111 }, 112 { PCI_PRODUCT_SYMBIOS_875, 113 0x00, 114 "Symbios Logic 53c875 (ultra-wide scsi)", 115 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 116 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | SF_CHIP_CLK80 | 117 SF_BUS_ULTRA | SF_BUS_WIDE, 118 7, 16, 5 119 }, 120 { PCI_PRODUCT_SYMBIOS_875, 121 0x02, 122 "Symbios Logic 53c875 (ultra-wide scsi)", 123 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 124 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | SF_CHIP_DBLR | 125 SF_BUS_ULTRA | SF_BUS_WIDE, 126 7, 16, 5 127 }, 128 { PCI_PRODUCT_SYMBIOS_875J, 129 0x00, 130 "Symbios Logic 53c875j (ultra-wide scsi)", 131 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 132 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | SF_CHIP_DBLR | 133 SF_BUS_ULTRA | SF_BUS_WIDE, 134 7, 16, 5 135 }, 136 { PCI_PRODUCT_SYMBIOS_885, 137 0x00, 138 "Symbios Logic 53c885 (ultra-wide scsi)", 139 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 140 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | SF_CHIP_DBLR | 141 SF_BUS_ULTRA | SF_BUS_WIDE, 142 7, 16, 5 143 }, 144 { PCI_PRODUCT_SYMBIOS_895, 145 0x00, 146 "Symbios Logic 53c895 (ultra2-wide scsi)", 147 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 148 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | SF_CHIP_QUAD | 149 SF_BUS_ULTRA2 | SF_BUS_WIDE, 150 7, 31, 7 151 }, 152 { PCI_PRODUCT_SYMBIOS_896, 153 0x00, 154 "Symbios Logic 53c896 (ultra2-wide scsi)", 155 SF_PCI_RL | SF_PCI_CLS | SF_PCI_WRI | SF_PCI_RM | 156 SF_CHIP_FIFO | SF_CHIP_PF | SF_CHIP_RAM | SF_CHIP_QUAD | 157 SF_BUS_ULTRA2 | SF_BUS_WIDE, 158 7, 31, 7 159 }, 160 { 0, 161 0x00, 162 NULL, 163 0x00, 164 7, 31, 7 165 }, 166 }; 167 168 const struct siop_product_desc * siop_lookup_product __P((u_int32_t, int)); 169 170 const struct siop_product_desc * 171 siop_lookup_product(id, rev) 172 u_int32_t id; 173 int rev; 174 { 175 const struct siop_product_desc *pp; 176 const struct siop_product_desc *rp = NULL; 177 178 if (PCI_VENDOR(id) != PCI_VENDOR_SYMBIOS) 179 return NULL; 180 181 for (pp = siop_products; pp->name != NULL; pp++) { 182 if (PCI_PRODUCT(id) == pp->product && pp->revision <= rev) 183 if (rp == NULL || pp->revision > rp->revision) 184 rp = pp; 185 } 186 return rp; 187 } 188 189 /* Driver internal state */ 190 struct siop_pci_softc { 191 struct siop_softc siop; 192 pci_chipset_tag_t sc_pc; /* PCI registers info */ 193 pcitag_t sc_tag; 194 void *sc_ih; /* PCI interrupt handle */ 195 const struct siop_product_desc *sc_pp; /* Adapter description */ 196 }; 197 198 int siop_pci_match __P((struct device *, struct cfdata *, void *)); 199 void siop_pci_attach __P((struct device *, struct device *, void *)); 200 201 struct cfattach siop_pci_ca = { 202 sizeof(struct siop_pci_softc), siop_pci_match, siop_pci_attach 203 }; 204 205 int 206 siop_pci_match(parent, match, aux) 207 struct device *parent; 208 struct cfdata *match; 209 void *aux; 210 { 211 struct pci_attach_args *pa = aux; 212 const struct siop_product_desc *pp; 213 214 /* look if it's a known product */ 215 pp = siop_lookup_product(pa->pa_id, PCI_REVISION(pa->pa_class)); 216 if (pp) 217 return 1; 218 return 0; 219 } 220 221 void 222 siop_pci_attach(parent, self, aux) 223 struct device *parent, *self; 224 void *aux; 225 { 226 struct pci_attach_args *pa = aux; 227 pci_chipset_tag_t pc = pa->pa_pc; 228 pcitag_t tag = pa->pa_tag; 229 struct siop_pci_softc *sc = (struct siop_pci_softc *)self; 230 const char *intrstr; 231 pci_intr_handle_t intrhandle; 232 233 sc->sc_pp = siop_lookup_product(pa->pa_id, PCI_REVISION(pa->pa_class)); 234 if (sc->sc_pp == NULL) { 235 printf("sym: broken match/attach!!\n"); 236 return; 237 } 238 printf(": %s\n", sc->sc_pp->name); 239 sc->sc_pc = pc; 240 sc->sc_tag = tag; 241 sc->siop.sc_dmat = pa->pa_dmat; 242 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0, 243 &sc->siop.sc_rt, &sc->siop.sc_rh, &sc->siop.sc_raddr, NULL) != 0) { 244 /* Try to map memory addr */ 245 if (pci_mapreg_map(pa, 0x14, 246 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 247 &sc->siop.sc_rt, &sc->siop.sc_rh, 248 &sc->siop.sc_raddr, NULL) != 0) { 249 printf("%s: unable to map device registers\n", 250 sc->siop.sc_dev.dv_xname); 251 } 252 } 253 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 254 pa->pa_intrline, &intrhandle) != 0) { 255 printf("%s: couldn't map native-PCI interrupt\n", 256 sc->siop.sc_dev.dv_xname); 257 return; 258 } 259 intrstr = pci_intr_string(pa->pa_pc, intrhandle); 260 sc->sc_ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_BIO, 261 siop_intr, &sc->siop); 262 if (sc->sc_ih != NULL) { 263 printf("%s: using %s for native-PCI interrupt\n", 264 sc->siop.sc_dev.dv_xname, 265 intrstr ? intrstr : "unknown interrupt"); 266 } else { 267 printf("%s: couldn't establish interrupt", 268 sc->siop.sc_dev.dv_xname); 269 if (intrstr != NULL) 270 printf(" at %s", intrstr); 271 printf("\n"); 272 return; 273 } 274 /* copy interesting infos about the chip */ 275 sc->siop.features = sc->sc_pp->features; 276 sc->siop.maxburst = sc->sc_pp->maxburst; 277 sc->siop.maxoff = sc->sc_pp->maxoff; 278 sc->siop.clock_div = sc->sc_pp->clock_div; 279 /* attach generic code */ 280 siop_attach(&sc->siop); 281 } 282
Indexes created Mon Sep 29 21:09:56 GMT 2025