cac_pci.c revision 1.4
1 /* $NetBSD: cac_pci.c,v 1.4 2000/06/13 13:36:52 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/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: cac_pci.c,v 1.4 2000/06/13 13:36:52 ad 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 #include <sys/proc.h> 52 #include <sys/buf.h> 53 54 #include <machine/endian.h> 55 #include <machine/bus.h> 56 57 #include <dev/pci/pcidevs.h> 58 #include <dev/pci/pcivar.h> 59 60 #include <dev/ic/cacreg.h> 61 #include <dev/ic/cacvar.h> 62 63 #define PCI_CBIO 0x10 /* Configuration base I/O address */ 64 #define PCI_CBMA 0x14 /* Configuration base memory address */ 65 66 static int cac_pci_match __P((struct device *, struct cfdata *, void *)); 67 static void cac_pci_attach __P((struct device *, struct device *, void *)); 68 69 static void cac_pci_l0_submit __P((struct cac_softc *, paddr_t)); 70 static paddr_t cac_pci_l0_completed __P((struct cac_softc *)); 71 static int cac_pci_l0_intr_pending __P((struct cac_softc *)); 72 static void cac_pci_l0_intr_enable __P((struct cac_softc *, int)); 73 static int cac_pci_l0_fifo_full __P((struct cac_softc *)); 74 75 static void cac_pci_l1_submit __P((struct cac_softc *, paddr_t)); 76 static paddr_t cac_pci_l1_completed __P((struct cac_softc *)); 77 static int cac_pci_l1_intr_pending __P((struct cac_softc *)); 78 static void cac_pci_l1_intr_enable __P((struct cac_softc *, int)); 79 static int cac_pci_l1_fifo_full __P((struct cac_softc *)); 80 81 struct cfattach cac_pci_ca = { 82 sizeof(struct cac_softc), cac_pci_match, cac_pci_attach 83 }; 84 85 static struct cac_linkage cac_pci_l0 = { 86 cac_pci_l0_submit, 87 cac_pci_l0_completed, 88 cac_pci_l0_intr_pending, 89 cac_pci_l0_intr_enable, 90 cac_pci_l0_fifo_full 91 }; 92 93 static struct cac_linkage cac_pci_l1 = { 94 cac_pci_l1_submit, 95 cac_pci_l1_completed, 96 cac_pci_l1_intr_pending, 97 cac_pci_l1_intr_enable, 98 cac_pci_l1_fifo_full 99 }; 100 101 /* This block of code inspired by Compaq's Linux driver. */ 102 struct cac_type { 103 int ct_subsysid; /* PCI subsystem ID */ 104 int ct_mmreg; /* Memory mapped registers */ 105 struct cac_linkage *ct_linkage; /* Command interface */ 106 char *ct_typestr; /* Textual description */ 107 } static cac_type[] = { 108 #ifdef notdef 109 { 0x0040110e, 0, &cac_pci_lX, "IDA" }, 110 { 0x0140110e, 0, &cac_pci_lX, "IDA 2" }, 111 { 0x1040110e, 0, &cac_pci_lX, "IAES" }, 112 { 0x2040110e, 0, &cac_pci_lX, "SMART" }, 113 #endif 114 { 0x3040110e, 0, &cac_pci_l0, "SMART-2/E" }, 115 { 0x40300e11, 1, &cac_pci_l0, "SMART-2/P" }, 116 { 0x40310e11, 1, &cac_pci_l0, "SMART-2SL" }, 117 { 0x40320e11, 1, &cac_pci_l0, "Smart Array 3200" }, 118 { 0x40330e11, 1, &cac_pci_l0, "Smart Array 3100ES" }, 119 { 0x40340e11, 1, &cac_pci_l0, "Smart Array 221" }, 120 { 0x40400e11, 1, &cac_pci_l1, "Integrated Array" }, 121 { 0x40500e11, 1, &cac_pci_l1, "Smart Array 4200" }, 122 { 0x40510e11, 1, &cac_pci_l1, "Smart Array 4200ES" }, 123 { -1, 1, &cac_pci_l0, "array controller (unknown type)" }, 124 }; 125 126 static int 127 cac_pci_match(parent, match, aux) 128 struct device *parent; 129 struct cfdata *match; 130 void *aux; 131 { 132 struct pci_attach_args *pa; 133 134 pa = (struct pci_attach_args *)aux; 135 136 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_COMPAQ && 137 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_COMPAQ_SMART2P) 138 return (1); 139 140 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC && 141 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_CPQ42XX) 142 return (1); 143 144 return (0); 145 } 146 147 static void 148 cac_pci_attach(parent, self, aux) 149 struct device *parent; 150 struct device *self; 151 void *aux; 152 { 153 struct pci_attach_args *pa; 154 struct cac_type *ct; 155 struct cac_softc *sc; 156 pci_chipset_tag_t pc; 157 pci_intr_handle_t ih; 158 const char *intrstr; 159 pcireg_t csr, subsysid; 160 int mmreg; 161 162 sc = (struct cac_softc *)self; 163 pa = (struct pci_attach_args *)aux; 164 pc = pa->pa_pc; 165 mmreg = 0; 166 167 printf(": "); 168 169 subsysid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 170 171 for (ct = cac_type; ct->ct_subsysid != -1; ct++) 172 if (subsysid == ct->ct_subsysid) 173 break; 174 175 if ((mmreg = ct->ct_mmreg) != 0) 176 if (pci_mapreg_map(pa, PCI_CBMA, PCI_MAPREG_TYPE_MEM, 0, 177 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) 178 mmreg = 0; 179 180 if (mmreg == 0) 181 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 182 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { 183 printf("can't map i/o space\n"); 184 return; 185 } 186 187 sc->sc_dmat = pa->pa_dmat; 188 189 /* Enable the device. */ 190 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 191 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 192 csr | PCI_COMMAND_MASTER_ENABLE); 193 194 /* Map and establish the interrupt. */ 195 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 196 pa->pa_intrline, &ih)) { 197 printf("can't map interrupt\n"); 198 return; 199 } 200 intrstr = pci_intr_string(pc, ih); 201 sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, cac_intr, sc); 202 if (sc->sc_ih == NULL) { 203 printf("can't establish interrupt"); 204 if (intrstr != NULL) 205 printf(" at %s", intrstr); 206 printf("\n"); 207 return; 208 } 209 210 /* Now attach to the bus-independent code */ 211 sc->sc_typestr = ct->ct_typestr; 212 sc->sc_cl = ct->ct_linkage; 213 cac_init(sc, intrstr); 214 } 215 216 static void 217 cac_pci_l0_submit(sc, addr) 218 struct cac_softc *sc; 219 paddr_t addr; 220 { 221 222 cac_outl(sc, CAC_REG_CMD_FIFO, addr); 223 } 224 225 static paddr_t 226 cac_pci_l0_completed(sc) 227 struct cac_softc *sc; 228 { 229 230 return (cac_inl(sc, CAC_REG_DONE_FIFO)); 231 } 232 233 static int 234 cac_pci_l0_intr_pending(sc) 235 struct cac_softc *sc; 236 { 237 238 return (cac_inl(sc, CAC_REG_INT_PENDING)); 239 } 240 241 static void 242 cac_pci_l0_intr_enable(sc, state) 243 struct cac_softc *sc; 244 int state; 245 { 246 247 cac_outl(sc, CAC_REG_INT_MASK, state); 248 } 249 250 static int 251 cac_pci_l0_fifo_full(sc) 252 struct cac_softc *sc; 253 { 254 255 return (cac_inl(sc, CAC_REG_CMD_FIFO) == 0); 256 } 257 258 static void 259 cac_pci_l1_submit(sc, addr) 260 struct cac_softc *sc; 261 paddr_t addr; 262 { 263 264 cac_outl(sc, CAC_42REG_CMD_FIFO, addr); 265 } 266 267 static paddr_t 268 cac_pci_l1_completed(sc) 269 struct cac_softc *sc; 270 { 271 int32_t val; 272 273 if ((val = cac_inl(sc, CAC_42REG_DONE_FIFO)) == -1) 274 return (0); 275 276 cac_outl(sc, CAC_42REG_DONE_FIFO, 0); 277 return ((paddr_t)val); 278 } 279 280 static int 281 cac_pci_l1_intr_pending(sc) 282 struct cac_softc *sc; 283 { 284 285 return (cac_inl(sc, CAC_42REG_INT_PENDING) & 286 cac_inl(sc, CAC_42REG_STATUS)); 287 } 288 289 static void 290 cac_pci_l1_intr_enable(sc, state) 291 struct cac_softc *sc; 292 int state; 293 { 294 295 cac_outl(sc, CAC_REG_INT_MASK, (state ? 0 : 8)); /* XXX */ 296 } 297 298 static int 299 cac_pci_l1_fifo_full(sc) 300 struct cac_softc *sc; 301 { 302 303 return (~cac_inl(sc, CAC_42REG_CMD_FIFO)); 304 } 305
Indexes created Sun Sep 21 15:09:59 GMT 2025