if_wi_pci.c revision 1.5
1 /* $NetBSD: if_wi_pci.c,v 1.5 2002/01/15 13:50:59 augustss Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Hideaki Imaizumi <hiddy (at) sfc.wide.ad.jp> 9 * and Ichiro FUKUHARA (ichiro (at) ichiro.org). 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 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * PCI bus front-end for the Intersil PCI WaveLan. 42 * Works with Prism2.5 Mini-PCI wavelan. 43 */ 44 45 #include <sys/cdefs.h> 46 __KERNEL_RCSID(0, "$NetBSD: if_wi_pci.c,v 1.5 2002/01/15 13:50:59 augustss Exp $"); 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/mbuf.h> 51 #include <sys/syslog.h> 52 #include <sys/socket.h> 53 #include <sys/device.h> 54 #include <sys/callout.h> 55 56 #include <net/if.h> 57 #include <net/if_ether.h> 58 #include <net/if_media.h> 59 #include <net/if_ieee80211.h> 60 61 #include <machine/bus.h> 62 #include <machine/intr.h> 63 64 #include <dev/pci/pcireg.h> 65 #include <dev/pci/pcivar.h> 66 #include <dev/pci/pcidevs.h> 67 68 #include <dev/ic/wi_ieee.h> 69 #include <dev/ic/wireg.h> 70 #include <dev/ic/wivar.h> 71 72 #define WI_PCI_PLX_LOMEM 0x10 /* PLX chip membase */ 73 #define WI_PCI_PLX_LOIO 0x14 /* PLX chip iobase */ 74 #define WI_PCI_LOMEM 0x18 /* ISA membase */ 75 #define WI_PCI_LOIO 0x1C /* ISA iobase */ 76 77 #define WI_PLX_COR_OFFSET 0x3E0 78 #define WI_PLX_COR_VALUE 0x41 79 80 struct wi_pci_softc { 81 struct wi_softc psc_wi; /* real "wi" softc */ 82 83 /* PCI-specific goo */ 84 pci_intr_handle_t psc_ih; 85 struct pci_attach_args *psc_pa; 86 87 void *sc_powerhook; /* power hook descriptor */ 88 }; 89 90 static int wi_pci_match __P((struct device *, struct cfdata *, void *)); 91 static void wi_pci_attach __P((struct device *, struct device *, void *)); 92 static int wi_pci_enable __P((struct wi_softc *)); 93 static void wi_pci_disable __P((struct wi_softc *)); 94 static void wi_pci_powerhook __P((int, void *)); 95 96 static const struct wi_pci_product 97 *wi_pci_lookup __P((struct pci_attach_args *)); 98 99 struct cfattach wi_pci_ca = { 100 sizeof(struct wi_pci_softc), wi_pci_match, wi_pci_attach 101 }; 102 103 const struct wi_pci_product { 104 pci_vendor_id_t wpp_vendor; /* vendor ID */ 105 pci_product_id_t wpp_product; /* product ID */ 106 const char *wpp_name; /* product name */ 107 int wpp_plx; /* uses PLX chip */ 108 } wi_pci_products[] = { 109 { PCI_VENDOR_GLOBALSUN, PCI_PRODUCT_GLOBALSUN_GL24110P, 110 NULL, 1 }, 111 { PCI_VENDOR_GLOBALSUN, PCI_PRODUCT_GLOBALSUN_GL24110P02, 112 NULL, 1 }, 113 { PCI_VENDOR_EUMITCOM, PCI_PRODUCT_EUMITCOM_WL11000P, 114 NULL, 1 }, 115 { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CRWE777A, 116 NULL, 1 }, 117 { PCI_VENDOR_NETGEAR, PCI_PRODUCT_NETGEAR_MA301, 118 NULL, 1 }, 119 { PCI_VENDOR_INTERSIL, PCI_PRODUCT_INTERSIL_MINI_PCI_WLAN, 120 "Intersil Prism2.5", 0 }, 121 { 0, 0, 122 NULL, 0}, 123 }; 124 125 static int 126 wi_pci_enable(sc) 127 struct wi_softc *sc; 128 { 129 struct wi_pci_softc *psc = (struct wi_pci_softc *)sc; 130 131 /* establish the interrupt. */ 132 sc->sc_ih = pci_intr_establish(psc->psc_pa->pa_pc, 133 psc->psc_ih, IPL_NET, wi_intr, sc); 134 if (sc->sc_ih == NULL) { 135 printf("%s: couldn't establish interrupt\n", 136 sc->sc_dev.dv_xname); 137 return (EIO); 138 } 139 140 /* reset HFA3842 MAC core */ 141 wi_pci_reset(sc); 142 143 return (0); 144 } 145 146 static void 147 wi_pci_disable(sc) 148 struct wi_softc *sc; 149 { 150 struct wi_pci_softc *psc = (struct wi_pci_softc *)sc; 151 152 pci_intr_disestablish(psc->psc_pa->pa_pc, sc->sc_ih); 153 } 154 155 static const struct wi_pci_product * 156 wi_pci_lookup(pa) 157 struct pci_attach_args *pa; 158 { 159 const struct wi_pci_product *wpp; 160 161 for (wpp = wi_pci_products; wpp->wpp_vendor != 0; wpp++) { 162 if (PCI_VENDOR(pa->pa_id) == wpp->wpp_vendor && 163 PCI_PRODUCT(pa->pa_id) == wpp->wpp_product) 164 return (wpp); 165 } 166 return (NULL); 167 } 168 169 static int 170 wi_pci_match(parent, match, aux) 171 struct device *parent; 172 struct cfdata *match; 173 void *aux; 174 { 175 struct pci_attach_args *pa = aux; 176 177 if (wi_pci_lookup(pa) != NULL) 178 return (1); 179 return (0); 180 } 181 182 static void 183 wi_pci_attach(parent, self, aux) 184 struct device *parent, *self; 185 void *aux; 186 { 187 struct wi_pci_softc *psc = (struct wi_pci_softc *)self; 188 struct wi_softc *sc = &psc->psc_wi; 189 struct pci_attach_args *pa = aux; 190 pci_chipset_tag_t pc = pa->pa_pc; 191 const char *intrstr; 192 const struct wi_pci_product *wpp; 193 pci_intr_handle_t ih; 194 bus_space_tag_t memt, iot; 195 bus_space_handle_t memh, ioh; 196 197 psc->psc_pa = pa; 198 199 wpp = wi_pci_lookup(pa); 200 #ifdef DIAGNOSTIC 201 if (wpp == NULL) { 202 printf("\n"); 203 panic("wi_pci_attach: impossible"); 204 } 205 #endif 206 207 if (wpp->wpp_plx) { 208 /* Map memory and I/O registers. */ 209 if (pci_mapreg_map(pa, WI_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 210 &memt, &memh, NULL, NULL) != 0) { 211 printf(": can't map mem space\n"); 212 return; 213 } 214 if (pci_mapreg_map(pa, WI_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 215 &iot, &ioh, NULL, NULL) != 0) { 216 printf(": can't map I/O space\n"); 217 return; 218 } 219 } else { 220 if (pci_mapreg_map(pa, WI_PCI_CBMA, 221 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 222 0, &iot, &ioh, NULL, NULL) != 0) { 223 printf(": can't map mem space\n"); 224 return; 225 } 226 227 memt = iot; 228 memh = ioh; 229 sc->sc_pci = 1; 230 } 231 232 if (wpp->wpp_name != NULL) { 233 printf(": %s Wireless Lan\n", wpp->wpp_name); 234 } else { 235 char devinfo[256]; 236 237 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 238 printf(": %s (rev. 0x%02x)\n", devinfo, 239 PCI_REVISION(pa->pa_class)); 240 } 241 242 sc->sc_enabled = 1; 243 sc->sc_enable = wi_pci_enable; 244 sc->sc_disable = wi_pci_disable; 245 246 /* Enable the card. */ 247 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 248 pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 249 PCI_COMMAND_MASTER_ENABLE); 250 251 sc->sc_iot = iot; 252 sc->sc_ioh = ioh; 253 /* Make sure interrupts are disabled. */ 254 CSR_WRITE_2(sc, WI_INT_EN, 0); 255 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); 256 257 /* Map and establish the interrupt. */ 258 if (pci_intr_map(pa, &ih)) { 259 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 260 return; 261 } 262 intrstr = pci_intr_string(pc, ih); 263 264 psc->psc_ih = ih; 265 sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, wi_intr, sc); 266 if (sc->sc_ih == NULL) { 267 printf("%s: couldn't establish interrupt", 268 sc->sc_dev.dv_xname); 269 if (intrstr != NULL) 270 printf(" at %s", intrstr); 271 printf("\n"); 272 return; 273 } 274 275 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 276 277 if (wpp->wpp_plx) { 278 /* 279 * Setup the PLX chip for level interrupts and config index 1 280 * XXX - should really reset the PLX chip too. 281 */ 282 bus_space_write_1(memt, memh, 283 WI_PLX_COR_OFFSET, WI_PLX_COR_VALUE); 284 } else { 285 /* reset HFA3842 MAC core */ 286 wi_pci_reset(sc); 287 } 288 289 printf("%s:", sc->sc_dev.dv_xname); 290 sc->sc_ifp = &sc->sc_ethercom.ec_if; 291 if (wi_attach(sc) != 0) { 292 printf(" failed to attach controller\n"); 293 pci_intr_disestablish(pa->pa_pc, sc->sc_ih); 294 return; 295 } 296 297 /* Add a suspend hook to restore PCI config state */ 298 psc->sc_powerhook = powerhook_establish(wi_pci_powerhook, psc); 299 if (psc->sc_powerhook == NULL) 300 printf ("%s: WARNING: unable to establish pci power hook\n", 301 sc->sc_dev.dv_xname); 302 } 303 304 static void 305 wi_pci_powerhook(why, arg) 306 int why; 307 void *arg; 308 { 309 struct wi_pci_softc *psc = arg; 310 struct wi_softc *sc = &psc->psc_wi; 311 312 wi_power(sc, why); 313 } 314
Indexes created Mon Sep 22 13:09:51 GMT 2025