1 /* $OpenBSD: cac_pci.c,v 1.4 2001/06/12 15:40:30 niklas Exp $ */ 2 /* $NetBSD: cac_pci.c,v 1.10 2001/01/10 16:48:04 ad Exp $ */ 3 4 /*- 5 * Copyright (c) 2000 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Andrew Doran. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * PCI front-end for cac(4) driver. 42 */ 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/kernel.h> 47 #include <sys/device.h> 48 #include <sys/queue.h> 49 50 #include <machine/endian.h> 51 #include <machine/bus.h> 52 53 #include <dev/pci/pcidevs.h> 54 #include <dev/pci/pcivar.h> 55 56 #include <scsi/scsi_all.h> 57 #include <scsi/scsi_disk.h> 58 #include <scsi/scsiconf.h> 59 60 #include <dev/ic/cacreg.h> 61 #include <dev/ic/cacvar.h> 62 63 void cac_pci_attach(struct device *, struct device *, void *); 64 const struct cac_pci_type *cac_pci_findtype(struct pci_attach_args *); 65 int cac_pci_match(struct device *, void *, void *); 66 67 struct cac_ccb *cac_pci_l0_completed(struct cac_softc *); 68 int cac_pci_l0_fifo_full(struct cac_softc *); 69 void cac_pci_l0_intr_enable(struct cac_softc *, int); 70 int cac_pci_l0_intr_pending(struct cac_softc *); 71 void cac_pci_l0_submit(struct cac_softc *, struct cac_ccb *); 72 73 struct cfattach cac_pci_ca = { 74 sizeof(struct cac_softc), cac_pci_match, cac_pci_attach 75 }; 76 77 static const struct cac_linkage cac_pci_l0 = { 78 cac_pci_l0_completed, 79 cac_pci_l0_fifo_full, 80 cac_pci_l0_intr_enable, 81 cac_pci_l0_intr_pending, 82 cac_pci_l0_submit 83 }; 84 85 #define CT_STARTFW 0x01 /* Need to start controller firmware */ 86 87 static const 88 struct cac_pci_type { 89 int ct_subsysid; 90 int ct_flags; 91 const struct cac_linkage *ct_linkage; 92 char *ct_typestr; 93 } cac_pci_type[] = { 94 { 0x40300e11, 0, &cac_l0, "SMART-2/P" }, 95 { 0x40310e11, 0, &cac_l0, "SMART-2SL" }, 96 { 0x40320e11, 0, &cac_l0, "Smart Array 3200" }, 97 { 0x40330e11, 0, &cac_l0, "Smart Array 3100ES" }, 98 { 0x40340e11, 0, &cac_l0, "Smart Array 221" }, 99 { 0x40400e11, CT_STARTFW, &cac_pci_l0, "Integrated Array" }, 100 { 0x40480e11, CT_STARTFW, &cac_pci_l0, "RAID LC2" }, 101 { 0x40500e11, 0, &cac_pci_l0, "Smart Array 4200" }, 102 { 0x40510e11, 0, &cac_pci_l0, "Smart Array 4200ES" }, 103 { 0x40580e11, 0, &cac_pci_l0, "Smart Array 431" }, 104 }; 105 106 static const 107 struct cac_pci_product { 108 u_short cp_vendor; 109 u_short cp_product; 110 } cac_pci_product[] = { 111 { PCI_VENDOR_COMPAQ, PCI_PRODUCT_COMPAQ_SMART2P }, 112 { PCI_VENDOR_DEC, PCI_PRODUCT_DEC_CPQ42XX }, 113 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_1510 }, 114 }; 115 116 const struct cac_pci_type * 117 cac_pci_findtype(pa) 118 struct pci_attach_args *pa; 119 { 120 const struct cac_pci_type *ct; 121 const struct cac_pci_product *cp; 122 pcireg_t subsysid; 123 int i; 124 125 cp = cac_pci_product; 126 i = 0; 127 while (i < sizeof(cac_pci_product) / sizeof(cac_pci_product[0])) { 128 if (PCI_VENDOR(pa->pa_id) == cp->cp_vendor && 129 PCI_PRODUCT(pa->pa_id) == cp->cp_product) 130 break; 131 cp++; 132 i++; 133 } 134 if (i == sizeof(cac_pci_product) / sizeof(cac_pci_product[0])) 135 return (NULL); 136 137 subsysid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 138 ct = cac_pci_type; 139 i = 0; 140 while (i < sizeof(cac_pci_type) / sizeof(cac_pci_type[0])) { 141 if (subsysid == ct->ct_subsysid) 142 break; 143 ct++; 144 i++; 145 } 146 if (i == sizeof(cac_pci_type) / sizeof(cac_pci_type[0])) 147 return (NULL); 148 149 return (ct); 150 } 151 152 int 153 cac_pci_match(parent, match, aux) 154 struct device *parent; 155 void *match, *aux; 156 { 157 158 return (cac_pci_findtype(aux) != NULL); 159 } 160 161 void 162 cac_pci_attach(parent, self, aux) 163 struct device *parent; 164 struct device *self; 165 void *aux; 166 { 167 struct pci_attach_args *pa; 168 const struct cac_pci_type *ct; 169 struct cac_softc *sc; 170 pci_chipset_tag_t pc; 171 pci_intr_handle_t ih; 172 const char *intrstr; 173 pcireg_t reg; 174 int memr, ior, i; 175 176 sc = (struct cac_softc *)self; 177 pa = (struct pci_attach_args *)aux; 178 pc = pa->pa_pc; 179 ct = cac_pci_findtype(pa); 180 181 /* 182 * Map the PCI register window. 183 */ 184 memr = -1; 185 ior = -1; 186 187 for (i = 0x10; i <= 0x14; i += 4) { 188 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, i); 189 190 if (PCI_MAPREG_TYPE(reg) == PCI_MAPREG_TYPE_IO) { 191 if (ior == -1 && PCI_MAPREG_IO_SIZE(reg) != 0) 192 ior = i; 193 } else { 194 if (memr == -1 && PCI_MAPREG_MEM_SIZE(reg) != 0) 195 memr = i; 196 } 197 } 198 199 if (memr != -1) { 200 if (pci_mapreg_map(pa, memr, PCI_MAPREG_TYPE_MEM, 0, 201 &sc->sc_iot, &sc->sc_ioh, NULL, NULL, 0)) 202 memr = -1; 203 else 204 ior = -1; 205 } 206 if (ior != -1) 207 if (pci_mapreg_map(pa, ior, PCI_MAPREG_TYPE_IO, 0, 208 &sc->sc_iot, &sc->sc_ioh, NULL, NULL, 0)) 209 ior = -1; 210 if (memr == -1 && ior == -1) { 211 printf("%s: can't map i/o or memory space\n", self->dv_xname); 212 return; 213 } 214 215 sc->sc_dmat = pa->pa_dmat; 216 217 /* Enable the device. */ 218 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 219 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 220 reg | PCI_COMMAND_MASTER_ENABLE); 221 222 /* Map and establish the interrupt. */ 223 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 224 pa->pa_intrline, &ih)) { 225 printf(": can't map interrupt\n"); 226 return; 227 } 228 intrstr = pci_intr_string(pc, ih); 229 sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, cac_intr, 230 sc, sc->sc_dv.dv_xname); 231 if (sc->sc_ih == NULL) { 232 printf(": can't establish interrupt"); 233 if (intrstr != NULL) 234 printf(" at %s", intrstr); 235 printf("\n"); 236 return; 237 } 238 239 printf(": %s Compaq %s\n", intrstr, ct->ct_typestr); 240 241 /* Now attach to the bus-independent code. */ 242 sc->sc_cl = ct->ct_linkage; 243 cac_init(sc, (ct->ct_flags & CT_STARTFW) != 0); 244 } 245 246 void 247 cac_pci_l0_submit(struct cac_softc *sc, struct cac_ccb *ccb) 248 { 249 250 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 251 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 252 cac_outl(sc, CAC_42REG_CMD_FIFO, ccb->ccb_paddr); 253 } 254 255 struct cac_ccb * 256 cac_pci_l0_completed(struct cac_softc *sc) 257 { 258 struct cac_ccb *ccb; 259 u_int32_t off; 260 261 if ((off = cac_inl(sc, CAC_42REG_DONE_FIFO)) == 0xffffffffU) 262 return (NULL); 263 264 cac_outl(sc, CAC_42REG_DONE_FIFO, 0); 265 off = (off & ~3) - sc->sc_ccbs_paddr; 266 ccb = (struct cac_ccb *)(sc->sc_ccbs + off); 267 268 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 269 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 270 271 return (ccb); 272 } 273 274 int 275 cac_pci_l0_intr_pending(struct cac_softc *sc) 276 { 277 278 return (cac_inl(sc, CAC_42REG_STATUS) & CAC_42_EXTINT); 279 } 280 281 void 282 cac_pci_l0_intr_enable(struct cac_softc *sc, int state) 283 { 284 285 cac_outl(sc, CAC_42REG_INTR_MASK, (state ? 0 : 8)); /* XXX */ 286 } 287 288 int 289 cac_pci_l0_fifo_full(struct cac_softc *sc) 290 { 291 292 return (~cac_inl(sc, CAC_42REG_CMD_FIFO)); 293 } 294