1 /* $NetBSD: cac_pci.c,v 1.13 2002/05/15 14:15:17 augustss Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * PCI front-end for cac(4) driver. 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: cac_pci.c,v 1.13 2002/05/15 14:15:17 augustss Exp $"); 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/device.h> 50 #include <sys/queue.h> 51 52 #include <machine/endian.h> 53 #include <machine/bus.h> 54 55 #include <dev/pci/pcidevs.h> 56 #include <dev/pci/pcivar.h> 57 58 #include <dev/ic/cacreg.h> 59 #include <dev/ic/cacvar.h> 60 61 void cac_pci_attach(struct device *, struct device *, void *); 62 const struct cac_pci_type *cac_pci_findtype(struct pci_attach_args *); 63 int cac_pci_match(struct device *, struct cfdata *, void *); 64 65 struct cac_ccb *cac_pci_l0_completed(struct cac_softc *); 66 int cac_pci_l0_fifo_full(struct cac_softc *); 67 void cac_pci_l0_intr_enable(struct cac_softc *, int); 68 int cac_pci_l0_intr_pending(struct cac_softc *); 69 void cac_pci_l0_submit(struct cac_softc *, struct cac_ccb *); 70 71 struct cfattach cac_pci_ca = { 72 sizeof(struct cac_softc), cac_pci_match, cac_pci_attach 73 }; 74 75 static const struct cac_linkage cac_pci_l0 = { 76 cac_pci_l0_completed, 77 cac_pci_l0_fifo_full, 78 cac_pci_l0_intr_enable, 79 cac_pci_l0_intr_pending, 80 cac_pci_l0_submit 81 }; 82 83 #define CT_STARTFW 0x01 /* Need to start controller firmware */ 84 85 struct cac_pci_type { 86 int ct_subsysid; 87 int ct_flags; 88 const struct cac_linkage *ct_linkage; 89 const char *ct_typestr; 90 } static const cac_pci_type[] = { 91 { 0x40300e11, 0, &cac_l0, "SMART-2/P" }, 92 { 0x40310e11, 0, &cac_l0, "SMART-2SL" }, 93 { 0x40320e11, 0, &cac_l0, "Smart Array 3200" }, 94 { 0x40330e11, 0, &cac_l0, "Smart Array 3100ES" }, 95 { 0x40340e11, 0, &cac_l0, "Smart Array 221" }, 96 { 0x40400e11, CT_STARTFW, &cac_pci_l0, "Integrated Array" }, 97 { 0x40480e11, CT_STARTFW, &cac_pci_l0, "RAID LC2" }, 98 { 0x40500e11, 0, &cac_pci_l0, "Smart Array 4200" }, 99 { 0x40510e11, 0, &cac_pci_l0, "Smart Array 4200ES" }, 100 { 0x40580e11, 0, &cac_pci_l0, "Smart Array 431" }, 101 }; 102 103 struct cac_pci_product { 104 u_short cp_vendor; 105 u_short cp_product; 106 } static const cac_pci_product[] = { 107 { PCI_VENDOR_COMPAQ, PCI_PRODUCT_COMPAQ_SMART2P }, 108 { PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21554 }, 109 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_1510 }, 110 }; 111 112 const struct cac_pci_type * 113 cac_pci_findtype(struct pci_attach_args *pa) 114 { 115 const struct cac_pci_type *ct; 116 const struct cac_pci_product *cp; 117 pcireg_t subsysid; 118 int i; 119 120 cp = cac_pci_product; 121 i = 0; 122 while (i < sizeof(cac_pci_product) / sizeof(cac_pci_product[0])) { 123 if (PCI_VENDOR(pa->pa_id) == cp->cp_vendor && 124 PCI_PRODUCT(pa->pa_id) == cp->cp_product) 125 break; 126 cp++; 127 i++; 128 } 129 if (i == sizeof(cac_pci_product) / sizeof(cac_pci_product[0])) 130 return (NULL); 131 132 subsysid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 133 ct = cac_pci_type; 134 i = 0; 135 while (i < sizeof(cac_pci_type) / sizeof(cac_pci_type[0])) { 136 if (subsysid == ct->ct_subsysid) 137 break; 138 ct++; 139 i++; 140 } 141 if (i == sizeof(cac_pci_type) / sizeof(cac_pci_type[0])) 142 return (NULL); 143 144 return (ct); 145 } 146 147 int 148 cac_pci_match(struct device *parent, struct cfdata *match, void *aux) 149 { 150 151 return (cac_pci_findtype(aux) != NULL); 152 } 153 154 void 155 cac_pci_attach(struct device *parent, struct device *self, void *aux) 156 { 157 struct pci_attach_args *pa; 158 const struct cac_pci_type *ct; 159 struct cac_softc *sc; 160 pci_chipset_tag_t pc; 161 pci_intr_handle_t ih; 162 const char *intrstr; 163 pcireg_t reg; 164 int memr, ior, i; 165 166 sc = (struct cac_softc *)self; 167 pa = (struct pci_attach_args *)aux; 168 pc = pa->pa_pc; 169 ct = cac_pci_findtype(pa); 170 171 /* 172 * Map the PCI register window. 173 */ 174 memr = -1; 175 ior = -1; 176 177 for (i = 0x10; i <= 0x14; i += 4) { 178 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, i); 179 180 if (PCI_MAPREG_TYPE(reg) == PCI_MAPREG_TYPE_IO) { 181 if (ior == -1 && PCI_MAPREG_IO_SIZE(reg) != 0) 182 ior = i; 183 } else { 184 if (memr == -1 && PCI_MAPREG_MEM_SIZE(reg) != 0) 185 memr = i; 186 } 187 } 188 189 if (memr != -1) { 190 if (pci_mapreg_map(pa, memr, PCI_MAPREG_TYPE_MEM, 0, 191 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) 192 memr = -1; 193 else 194 ior = -1; 195 } 196 if (ior != -1) 197 if (pci_mapreg_map(pa, ior, PCI_MAPREG_TYPE_IO, 0, 198 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) 199 ior = -1; 200 if (memr == -1 && ior == -1) { 201 printf("%s: can't map i/o or memory space\n", self->dv_xname); 202 return; 203 } 204 205 sc->sc_dmat = pa->pa_dmat; 206 207 /* Enable the device. */ 208 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 209 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 210 reg | PCI_COMMAND_MASTER_ENABLE); 211 212 /* Map and establish the interrupt. */ 213 if (pci_intr_map(pa, &ih)) { 214 printf("can't map interrupt\n"); 215 return; 216 } 217 intrstr = pci_intr_string(pc, ih); 218 sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, cac_intr, sc); 219 if (sc->sc_ih == NULL) { 220 printf("can't establish interrupt"); 221 if (intrstr != NULL) 222 printf(" at %s", intrstr); 223 printf("\n"); 224 return; 225 } 226 227 printf(": Compaq %s\n", ct->ct_typestr); 228 229 /* Now attach to the bus-independent code. */ 230 memcpy(&sc->sc_cl, ct->ct_linkage, sizeof(sc->sc_cl)); 231 cac_init(sc, intrstr, (ct->ct_flags & CT_STARTFW) != 0); 232 } 233 234 void 235 cac_pci_l0_submit(struct cac_softc *sc, struct cac_ccb *ccb) 236 { 237 238 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, (caddr_t)ccb - sc->sc_ccbs, 239 sizeof(struct cac_ccb), BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 240 cac_outl(sc, CAC_42REG_CMD_FIFO, ccb->ccb_paddr); 241 } 242 243 struct cac_ccb * 244 cac_pci_l0_completed(struct cac_softc *sc) 245 { 246 struct cac_ccb *ccb; 247 u_int32_t off; 248 249 if ((off = cac_inl(sc, CAC_42REG_DONE_FIFO)) == 0xffffffffU) 250 return (NULL); 251 252 cac_outl(sc, CAC_42REG_DONE_FIFO, 0); 253 254 if ((off & 3) != 0) 255 printf("%s: failed command list returned: %lx\n", 256 sc->sc_dv.dv_xname, (long)off); 257 258 off = (off & ~3) - sc->sc_ccbs_paddr; 259 ccb = (struct cac_ccb *)(sc->sc_ccbs + off); 260 261 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, off, sizeof(struct cac_ccb), 262 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 263 264 return (ccb); 265 } 266 267 int 268 cac_pci_l0_intr_pending(struct cac_softc *sc) 269 { 270 271 return ((cac_inl(sc, CAC_42REG_STATUS) & CAC_42_EXTINT) != 0); 272 } 273 274 void 275 cac_pci_l0_intr_enable(struct cac_softc *sc, int state) 276 { 277 278 cac_outl(sc, CAC_42REG_INTR_MASK, (state ? 0 : 8)); /* XXX */ 279 } 280 281 int 282 cac_pci_l0_fifo_full(struct cac_softc *sc) 283 { 284 285 return (cac_inl(sc, CAC_42REG_CMD_FIFO) != 0); 286 } 287