siop_pci.c revision 1.2
1 /* $NetBSD: siop_pci.c,v 1.2 2000/04/27 14:06:59 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 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 for (pp = siop_products; pp->name != NULL; pp++) { 178 if (PCI_PRODUCT(id) == pp->product && pp->revision <= rev) 179 if (rp == NULL || pp->revision > rp->revision) 180 rp = pp; 181 } 182 return rp; 183 } 184 185 /* Driver internal state */ 186 struct siop_pci_softc { 187 struct siop_softc siop; 188 pci_chipset_tag_t sc_pc; /* PCI registers info */ 189 pcitag_t sc_tag; 190 void *sc_ih; /* PCI interrupt handle */ 191 const struct siop_product_desc *sc_pp; /* Adapter description */ 192 }; 193 194 int siop_pci_match __P((struct device *, struct cfdata *, void *)); 195 void siop_pci_attach __P((struct device *, struct device *, void *)); 196 197 struct cfattach siop_pci_ca = { 198 sizeof(struct siop_pci_softc), siop_pci_match, siop_pci_attach 199 }; 200 201 int 202 siop_pci_match(parent, match, aux) 203 struct device *parent; 204 struct cfdata *match; 205 void *aux; 206 { 207 struct pci_attach_args *pa = aux; 208 const struct siop_product_desc *pp; 209 210 /* look if it's a known product */ 211 pp = siop_lookup_product(pa->pa_id, PCI_REVISION(pa->pa_class)); 212 if (pp) 213 return 1; 214 return 0; 215 } 216 217 void 218 siop_pci_attach(parent, self, aux) 219 struct device *parent, *self; 220 void *aux; 221 { 222 struct pci_attach_args *pa = aux; 223 pci_chipset_tag_t pc = pa->pa_pc; 224 pcitag_t tag = pa->pa_tag; 225 struct siop_pci_softc *sc = (struct siop_pci_softc *)self; 226 const char *intrstr; 227 pci_intr_handle_t intrhandle; 228 229 sc->sc_pp = siop_lookup_product(pa->pa_id, PCI_REVISION(pa->pa_class)); 230 if (sc->sc_pp == NULL) { 231 printf("sym: broken match/attach!!\n"); 232 return; 233 } 234 printf(": %s\n", sc->sc_pp->name); 235 sc->sc_pc = pc; 236 sc->sc_tag = tag; 237 sc->siop.sc_dmat = pa->pa_dmat; 238 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0, 239 &sc->siop.sc_rt, &sc->siop.sc_rh, &sc->siop.sc_raddr, NULL) != 0) { 240 /* Try to map memory addr */ 241 if (pci_mapreg_map(pa, 0x14, 242 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 243 &sc->siop.sc_rt, &sc->siop.sc_rh, 244 &sc->siop.sc_raddr, NULL) != 0) { 245 printf("%s: unable to map device registers\n", 246 sc->siop.sc_dev.dv_xname); 247 } 248 } 249 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 250 pa->pa_intrline, &intrhandle) != 0) { 251 printf("%s: couldn't map native-PCI interrupt\n", 252 sc->siop.sc_dev.dv_xname); 253 return; 254 } 255 intrstr = pci_intr_string(pa->pa_pc, intrhandle); 256 sc->sc_ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_BIO, 257 siop_intr, &sc->siop); 258 if (sc->sc_ih != NULL) { 259 printf("%s: using %s for native-PCI interrupt\n", 260 sc->siop.sc_dev.dv_xname, 261 intrstr ? intrstr : "unknown interrupt"); 262 } else { 263 printf("%s: couldn't establish interrupt", 264 sc->siop.sc_dev.dv_xname); 265 if (intrstr != NULL) 266 printf(" at %s", intrstr); 267 printf("\n"); 268 return; 269 } 270 /* copy interesting infos about the chip */ 271 sc->siop.features = sc->sc_pp->features; 272 sc->siop.maxburst = sc->sc_pp->maxburst; 273 sc->siop.maxoff = sc->sc_pp->maxoff; 274 sc->siop.clock_div = sc->sc_pp->clock_div; 275 /* attach generic code */ 276 siop_attach(&sc->siop); 277 } 278
Indexes created Mon Sep 29 21:09:56 GMT 2025