cac_pci.c revision 1.10
1 /* $NetBSD: cac_pci.c,v 1.10 2001/01/10 16:48:04 ad 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/param.h> 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/device.h> 47 #include <sys/queue.h> 48 49 #include <machine/endian.h> 50 #include <machine/bus.h> 51 52 #include <dev/pci/pcidevs.h> 53 #include <dev/pci/pcivar.h> 54 55 #include <dev/ic/cacreg.h> 56 #include <dev/ic/cacvar.h> 57 58 static void cac_pci_attach(struct device *, struct device *, void *); 59 static struct cac_pci_type *cac_pci_findtype(struct pci_attach_args *); 60 static int cac_pci_match(struct device *, struct cfdata *, void *); 61 62 static struct cac_ccb *cac_pci_l0_completed(struct cac_softc *); 63 static int cac_pci_l0_fifo_full(struct cac_softc *); 64 static void cac_pci_l0_intr_enable(struct cac_softc *, int); 65 static int cac_pci_l0_intr_pending(struct cac_softc *); 66 static void cac_pci_l0_submit(struct cac_softc *, struct cac_ccb *); 67 68 struct cfattach cac_pci_ca = { 69 sizeof(struct cac_softc), cac_pci_match, cac_pci_attach 70 }; 71 72 static struct cac_linkage cac_pci_l0 = { 73 cac_pci_l0_completed, 74 cac_pci_l0_fifo_full, 75 cac_pci_l0_intr_enable, 76 cac_pci_l0_intr_pending, 77 cac_pci_l0_submit 78 }; 79 80 #define CT_STARTFW 0x01 /* Need to start controller firmware */ 81 82 struct cac_pci_type { 83 int ct_subsysid; 84 int ct_flags; 85 struct cac_linkage *ct_linkage; 86 char *ct_typestr; 87 } static cac_pci_type[] = { 88 { 0x40300e11, 0, &cac_l0, "SMART-2/P" }, 89 { 0x40310e11, 0, &cac_l0, "SMART-2SL" }, 90 { 0x40320e11, 0, &cac_l0, "Smart Array 3200" }, 91 { 0x40330e11, 0, &cac_l0, "Smart Array 3100ES" }, 92 { 0x40340e11, 0, &cac_l0, "Smart Array 221" }, 93 { 0x40400e11, CT_STARTFW, &cac_pci_l0, "Integrated Array" }, 94 { 0x40480e11, CT_STARTFW, &cac_pci_l0, "RAID LC2" }, 95 { 0x40500e11, 0, &cac_pci_l0, "Smart Array 4200" }, 96 { 0x40510e11, 0, &cac_pci_l0, "Smart Array 4200ES" }, 97 { 0x40580e11, 0, &cac_pci_l0, "Smart Array 431" }, 98 }; 99 100 struct cac_pci_product { 101 u_short cp_vendor; 102 u_short cp_product; 103 } static cac_pci_product[] = { 104 { PCI_VENDOR_COMPAQ, PCI_PRODUCT_COMPAQ_SMART2P }, 105 { PCI_VENDOR_DEC, PCI_PRODUCT_DEC_CPQ42XX }, 106 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_1510 }, 107 }; 108 109 static struct cac_pci_type * 110 cac_pci_findtype(struct pci_attach_args *pa) 111 { 112 struct cac_pci_type *ct; 113 struct cac_pci_product *cp; 114 pcireg_t subsysid; 115 int i; 116 117 cp = cac_pci_product; 118 i = 0; 119 while (i < sizeof(cac_pci_product) / sizeof(cac_pci_product[0])) { 120 if (PCI_VENDOR(pa->pa_id) == cp->cp_vendor && 121 PCI_PRODUCT(pa->pa_id) == cp->cp_product) 122 break; 123 cp++; 124 i++; 125 } 126 if (i == sizeof(cac_pci_product) / sizeof(cac_pci_product[0])) 127 return (NULL); 128 129 subsysid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 130 ct = cac_pci_type; 131 i = 0; 132 while (i < sizeof(cac_pci_type) / sizeof(cac_pci_type[0])) { 133 if (subsysid == ct->ct_subsysid) 134 break; 135 ct++; 136 i++; 137 } 138 if (i == sizeof(cac_pci_type) / sizeof(cac_pci_type[0])) 139 return (NULL); 140 141 return (ct); 142 } 143 144 static int 145 cac_pci_match(struct device *parent, struct cfdata *match, void *aux) 146 { 147 148 return (cac_pci_findtype(aux) != NULL); 149 } 150 151 static void 152 cac_pci_attach(struct device *parent, struct device *self, void *aux) 153 { 154 struct pci_attach_args *pa; 155 struct cac_pci_type *ct; 156 struct cac_softc *sc; 157 pci_chipset_tag_t pc; 158 pci_intr_handle_t ih; 159 const char *intrstr; 160 pcireg_t reg; 161 int memr, ior, i; 162 163 sc = (struct cac_softc *)self; 164 pa = (struct pci_attach_args *)aux; 165 pc = pa->pa_pc; 166 ct = cac_pci_findtype(pa); 167 168 /* 169 * Map the PCI register window. 170 */ 171 memr = -1; 172 ior = -1; 173 174 for (i = 0x10; i <= 0x14; i += 4) { 175 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, i); 176 177 if (PCI_MAPREG_TYPE(reg) == PCI_MAPREG_TYPE_IO) { 178 if (ior == -1 && PCI_MAPREG_IO_SIZE(reg) != 0) 179 ior = i; 180 } else { 181 if (memr == -1 && PCI_MAPREG_MEM_SIZE(reg) != 0) 182 memr = i; 183 } 184 } 185 186 if (memr != -1) { 187 if (pci_mapreg_map(pa, memr, PCI_MAPREG_TYPE_MEM, 0, 188 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) 189 memr = -1; 190 else 191 ior = -1; 192 } 193 if (ior != -1) 194 if (pci_mapreg_map(pa, ior, PCI_MAPREG_TYPE_IO, 0, 195 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) 196 ior = -1; 197 if (memr == -1 && ior == -1) { 198 printf("%s: can't map i/o or memory space\n", self->dv_xname); 199 return; 200 } 201 202 sc->sc_dmat = pa->pa_dmat; 203 204 /* Enable the device. */ 205 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 206 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 207 reg | PCI_COMMAND_MASTER_ENABLE); 208 209 /* Map and establish the interrupt. */ 210 if (pci_intr_map(pa, &ih)) { 211 printf("can't map interrupt\n"); 212 return; 213 } 214 intrstr = pci_intr_string(pc, ih); 215 sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, cac_intr, sc); 216 if (sc->sc_ih == NULL) { 217 printf("can't establish interrupt"); 218 if (intrstr != NULL) 219 printf(" at %s", intrstr); 220 printf("\n"); 221 return; 222 } 223 224 printf(": Compaq %s\n", ct->ct_typestr); 225 226 /* Now attach to the bus-independent code. */ 227 sc->sc_cl = ct->ct_linkage; 228 cac_init(sc, intrstr, (ct->ct_flags & CT_STARTFW) != 0); 229 } 230 231 static void 232 cac_pci_l0_submit(struct cac_softc *sc, struct cac_ccb *ccb) 233 { 234 235 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, (caddr_t)ccb - sc->sc_ccbs, 236 sizeof(struct cac_ccb), BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 237 cac_outl(sc, CAC_42REG_CMD_FIFO, ccb->ccb_paddr); 238 } 239 240 static struct cac_ccb * 241 cac_pci_l0_completed(struct cac_softc *sc) 242 { 243 struct cac_ccb *ccb; 244 u_int32_t off; 245 246 if ((off = cac_inl(sc, CAC_42REG_DONE_FIFO)) == 0xffffffffU) 247 return (0); 248 249 cac_outl(sc, CAC_42REG_DONE_FIFO, 0); 250 off = (off & ~3) - sc->sc_ccbs_paddr; 251 ccb = (struct cac_ccb *)(sc->sc_ccbs + off); 252 253 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, off, sizeof(struct cac_ccb), 254 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 255 256 return (ccb); 257 } 258 259 static int 260 cac_pci_l0_intr_pending(struct cac_softc *sc) 261 { 262 263 return ((cac_inl(sc, CAC_42REG_STATUS) & CAC_42_EXTINT) != 0); 264 } 265 266 static void 267 cac_pci_l0_intr_enable(struct cac_softc *sc, int state) 268 { 269 270 cac_outl(sc, CAC_42REG_INTR_MASK, (state ? 0 : 8)); /* XXX */ 271 } 272 273 static int 274 cac_pci_l0_fifo_full(struct cac_softc *sc) 275 { 276 277 return (cac_inl(sc, CAC_42REG_CMD_FIFO) != 0); 278 } 279
Indexes created Mon Sep 22 13:09:51 GMT 2025