1 /* $OpenBSD: cac_pci.c,v 1.13 2009/04/06 15:18:45 kettenis 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * PCI front-end for cac(4) driver. 35 */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/device.h> 41 #include <sys/queue.h> 42 43 #include <machine/endian.h> 44 #include <machine/bus.h> 45 46 #include <dev/pci/pcidevs.h> 47 #include <dev/pci/pcivar.h> 48 49 #include <scsi/scsi_all.h> 50 #include <scsi/scsi_disk.h> 51 #include <scsi/scsiconf.h> 52 53 #include <dev/ic/cacreg.h> 54 #include <dev/ic/cacvar.h> 55 56 void cac_pci_attach(struct device *, struct device *, void *); 57 const struct cac_pci_type *cac_pci_findtype(struct pci_attach_args *); 58 int cac_pci_match(struct device *, void *, void *); 59 60 struct cac_ccb *cac_pci_l0_completed(struct cac_softc *); 61 int cac_pci_l0_fifo_full(struct cac_softc *); 62 void cac_pci_l0_intr_enable(struct cac_softc *, int); 63 int cac_pci_l0_intr_pending(struct cac_softc *); 64 void cac_pci_l0_submit(struct cac_softc *, struct cac_ccb *); 65 66 struct cfattach cac_pci_ca = { 67 sizeof(struct cac_softc), cac_pci_match, cac_pci_attach 68 }; 69 70 static const struct cac_linkage cac_pci_l0 = { 71 cac_pci_l0_completed, 72 cac_pci_l0_fifo_full, 73 cac_pci_l0_intr_enable, 74 cac_pci_l0_intr_pending, 75 cac_pci_l0_submit 76 }; 77 78 #define CT_STARTFW 0x01 /* Need to start controller firmware */ 79 80 static const 81 struct cac_pci_type { 82 int ct_subsysid; 83 int ct_flags; 84 const struct cac_linkage *ct_linkage; 85 char *ct_typestr; 86 } cac_pci_type[] = { 87 { 0x40300e11, 0, &cac_l0, "SMART-2/P" }, 88 { 0x40310e11, 0, &cac_l0, "SMART-2SL" }, 89 { 0x40320e11, 0, &cac_l0, "Smart Array 3200" }, 90 { 0x40330e11, 0, &cac_l0, "Smart Array 3100ES" }, 91 { 0x40340e11, 0, &cac_l0, "Smart Array 221" }, 92 { 0x40400e11, CT_STARTFW, &cac_pci_l0, "Integrated Array" }, 93 { 0x40480e11, CT_STARTFW, &cac_pci_l0, "RAID LC2" }, 94 { 0x40500e11, 0, &cac_pci_l0, "Smart Array 4200" }, 95 { 0x40510e11, 0, &cac_pci_l0, "Smart Array 4200ES" }, 96 { 0x40580e11, 0, &cac_pci_l0, "Smart Array 431" }, 97 }; 98 99 static const 100 struct cac_pci_product { 101 u_short cp_vendor; 102 u_short cp_product; 103 } cac_pci_product[] = { 104 { PCI_VENDOR_COMPAQ, PCI_PRODUCT_COMPAQ_SMART2P }, 105 { PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21554 }, 106 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_1510 }, 107 }; 108 109 const struct cac_pci_type * 110 cac_pci_findtype(pa) 111 struct pci_attach_args *pa; 112 { 113 const struct cac_pci_type *ct; 114 const struct cac_pci_product *cp; 115 pcireg_t subsysid; 116 int i; 117 118 cp = cac_pci_product; 119 i = 0; 120 while (i < sizeof(cac_pci_product) / sizeof(cac_pci_product[0])) { 121 if (PCI_VENDOR(pa->pa_id) == cp->cp_vendor && 122 PCI_PRODUCT(pa->pa_id) == cp->cp_product) 123 break; 124 cp++; 125 i++; 126 } 127 if (i == sizeof(cac_pci_product) / sizeof(cac_pci_product[0])) 128 return (NULL); 129 130 subsysid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 131 ct = cac_pci_type; 132 i = 0; 133 while (i < sizeof(cac_pci_type) / sizeof(cac_pci_type[0])) { 134 if (subsysid == ct->ct_subsysid) 135 break; 136 ct++; 137 i++; 138 } 139 if (i == sizeof(cac_pci_type) / sizeof(cac_pci_type[0])) 140 return (NULL); 141 142 return (ct); 143 } 144 145 int 146 cac_pci_match(parent, match, aux) 147 struct device *parent; 148 void *match, *aux; 149 { 150 151 return (cac_pci_findtype(aux) != NULL); 152 } 153 154 void 155 cac_pci_attach(parent, self, aux) 156 struct device *parent; 157 struct device *self; 158 void *aux; 159 { 160 struct pci_attach_args *pa; 161 const struct cac_pci_type *ct; 162 struct cac_softc *sc; 163 pci_chipset_tag_t pc; 164 pci_intr_handle_t ih; 165 const char *intrstr; 166 pcireg_t reg; 167 bus_size_t size; 168 int memr, ior, i; 169 170 sc = (struct cac_softc *)self; 171 pa = (struct pci_attach_args *)aux; 172 pc = pa->pa_pc; 173 ct = cac_pci_findtype(pa); 174 175 /* 176 * Map the PCI register window. 177 */ 178 memr = -1; 179 ior = -1; 180 181 for (i = 0x10; i <= 0x14; i += 4) { 182 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, i); 183 184 if (PCI_MAPREG_TYPE(reg) == PCI_MAPREG_TYPE_IO) { 185 if (ior == -1 && PCI_MAPREG_IO_SIZE(reg) != 0) 186 ior = i; 187 } else { 188 if (memr == -1 && PCI_MAPREG_MEM_SIZE(reg) != 0) 189 memr = i; 190 } 191 } 192 193 if (memr != -1) { 194 if (pci_mapreg_map(pa, memr, PCI_MAPREG_TYPE_MEM, 0, 195 &sc->sc_iot, &sc->sc_ioh, NULL, &size, 0)) 196 memr = -1; 197 else 198 ior = -1; 199 } 200 if (ior != -1) 201 if (pci_mapreg_map(pa, ior, PCI_MAPREG_TYPE_IO, 0, 202 &sc->sc_iot, &sc->sc_ioh, NULL, &size, 0)) 203 ior = -1; 204 if (memr == -1 && ior == -1) { 205 printf(": can't map i/o or memory space\n"); 206 return; 207 } 208 209 sc->sc_dmat = pa->pa_dmat; 210 211 /* Map and establish the interrupt. */ 212 if (pci_intr_map(pa, &ih)) { 213 printf(": can't map interrupt\n"); 214 bus_space_unmap(sc->sc_iot, sc->sc_ioh, size); 215 return; 216 } 217 intrstr = pci_intr_string(pc, ih); 218 sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, cac_intr, 219 sc, sc->sc_dv.dv_xname); 220 if (sc->sc_ih == NULL) { 221 printf(": can't establish interrupt"); 222 if (intrstr != NULL) 223 printf(" at %s", intrstr); 224 printf("\n"); 225 bus_space_unmap(sc->sc_iot, sc->sc_ioh, size); 226 return; 227 } 228 229 printf(": %s, %s\n", intrstr, ct->ct_typestr); 230 231 /* Now attach to the bus-independent code. */ 232 sc->sc_cl = ct->ct_linkage; 233 cac_init(sc, (ct->ct_flags & CT_STARTFW) != 0); 234 } 235 236 void 237 cac_pci_l0_submit(struct cac_softc *sc, struct cac_ccb *ccb) 238 { 239 240 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 0, 241 sc->sc_dmamap->dm_mapsize, 242 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 243 cac_outl(sc, CAC_42REG_CMD_FIFO, ccb->ccb_paddr); 244 } 245 246 struct cac_ccb * 247 cac_pci_l0_completed(struct cac_softc *sc) 248 { 249 struct cac_ccb *ccb; 250 u_int32_t off; 251 252 if ((off = cac_inl(sc, CAC_42REG_DONE_FIFO)) == 0xffffffffU) 253 return (NULL); 254 255 cac_outl(sc, CAC_42REG_DONE_FIFO, 0); 256 off = (off & ~3) - sc->sc_ccbs_paddr; 257 ccb = (struct cac_ccb *)(sc->sc_ccbs + off); 258 259 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 0, 260 sc->sc_dmamap->dm_mapsize, 261 BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); 262 263 return (ccb); 264 } 265 266 int 267 cac_pci_l0_intr_pending(struct cac_softc *sc) 268 { 269 270 return ((cac_inl(sc, CAC_42REG_STATUS) & CAC_42_EXTINT) != 0); 271 } 272 273 void 274 cac_pci_l0_intr_enable(struct cac_softc *sc, int state) 275 { 276 277 cac_outl(sc, CAC_42REG_INTR_MASK, (state ? 0 : 8)); /* XXX */ 278 } 279 280 int 281 cac_pci_l0_fifo_full(struct cac_softc *sc) 282 { 283 284 return (cac_inl(sc, CAC_42REG_CMD_FIFO) != 0); 285 } 286