cac_pci.c revision 1.8
1 /* $NetBSD: cac_pci.c,v 1.8 2000/11/09 18:19:40 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 #define PCI_CBIO 0x10 /* Configuration base I/O address */ 59 #define PCI_CBMA 0x14 /* Configuration base memory address */ 60 61 static void cac_pci_attach(struct device *, struct device *, void *); 62 static struct cac_pci_type *cac_pci_findtype(struct pci_attach_args *); 63 static int cac_pci_match(struct device *, struct cfdata *, void *); 64 65 static struct cac_ccb *cac_pci_l0_completed(struct cac_softc *); 66 static int cac_pci_l0_fifo_full(struct cac_softc *); 67 static void cac_pci_l0_intr_enable(struct cac_softc *, int); 68 static int cac_pci_l0_intr_pending(struct cac_softc *); 69 static 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 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 struct cac_linkage *ct_linkage; 89 char *ct_typestr; 90 } static 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 cac_pci_product[] = { 107 { PCI_VENDOR_COMPAQ, PCI_PRODUCT_COMPAQ_SMART2P }, 108 { PCI_VENDOR_DEC, PCI_PRODUCT_DEC_CPQ42XX }, 109 { PCI_VENDOR_SYMBIOS, PCI_PRODUCT_SYMBIOS_1510 }, 110 }; 111 112 static struct cac_pci_type * 113 cac_pci_findtype(struct pci_attach_args *pa) 114 { 115 struct cac_pci_type *ct; 116 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 static 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 static void 155 cac_pci_attach(struct device *parent, struct device *self, void *aux) 156 { 157 struct pci_attach_args *pa; 158 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 csr; 164 165 sc = (struct cac_softc *)self; 166 pa = (struct pci_attach_args *)aux; 167 pc = pa->pa_pc; 168 ct = cac_pci_findtype(pa); 169 170 if (pci_mapreg_map(pa, PCI_CBMA, PCI_MAPREG_TYPE_MEM, 0, 171 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) 172 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 173 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { 174 printf("can't map memory or i/o space\n"); 175 return; 176 } 177 178 sc->sc_dmat = pa->pa_dmat; 179 180 /* Enable the device. */ 181 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 182 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 183 csr | PCI_COMMAND_MASTER_ENABLE); 184 185 /* Map and establish the interrupt. */ 186 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 187 pa->pa_intrline, &ih)) { 188 printf("can't map interrupt\n"); 189 return; 190 } 191 intrstr = pci_intr_string(pc, ih); 192 sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, cac_intr, sc); 193 if (sc->sc_ih == NULL) { 194 printf("can't establish interrupt"); 195 if (intrstr != NULL) 196 printf(" at %s", intrstr); 197 printf("\n"); 198 return; 199 } 200 201 printf(": Compaq %s\n", ct->ct_typestr); 202 203 /* Now attach to the bus-independent code. */ 204 sc->sc_cl = ct->ct_linkage; 205 cac_init(sc, intrstr, (ct->ct_flags & CT_STARTFW) != 0); 206 } 207 208 static void 209 cac_pci_l0_submit(struct cac_softc *sc, struct cac_ccb *ccb) 210 { 211 212 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, (caddr_t)ccb - sc->sc_ccbs, 213 sizeof(struct cac_ccb), BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 214 cac_outl(sc, CAC_42REG_CMD_FIFO, ccb->ccb_paddr); 215 } 216 217 static struct cac_ccb * 218 cac_pci_l0_completed(struct cac_softc *sc) 219 { 220 struct cac_ccb *ccb; 221 u_int32_t off; 222 223 if ((off = cac_inl(sc, CAC_42REG_DONE_FIFO)) == 0xffffffffU) 224 return (0); 225 226 cac_outl(sc, CAC_42REG_DONE_FIFO, 0); 227 off = (off & ~3) - sc->sc_ccbs_paddr; 228 ccb = (struct cac_ccb *)(sc->sc_ccbs + off); 229 230 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, off, sizeof(struct cac_ccb), 231 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 232 233 return (ccb); 234 } 235 236 static int 237 cac_pci_l0_intr_pending(struct cac_softc *sc) 238 { 239 240 return (cac_inl(sc, CAC_42REG_INTR_PENDING) & 241 cac_inl(sc, CAC_42REG_STATUS)); 242 } 243 244 static void 245 cac_pci_l0_intr_enable(struct cac_softc *sc, int state) 246 { 247 248 cac_outl(sc, CAC_42REG_INTR_MASK, (state ? 0 : 8)); /* XXX */ 249 } 250 251 static int 252 cac_pci_l0_fifo_full(struct cac_softc *sc) 253 { 254 255 return (~cac_inl(sc, CAC_42REG_CMD_FIFO)); 256 } 257
Indexes created Sun Sep 21 15:09:59 GMT 2025