if_fxp_cardbus.c revision 1.28
1 /* $NetBSD: if_fxp_cardbus.c,v 1.28 2007/12/09 23:47:53 jmcneill Exp $ */ 2 3 /* 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Johan Danielsson. 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 * CardBus front-end for the Intel i82557 family of Ethernet chips. 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: if_fxp_cardbus.c,v 1.28 2007/12/09 23:47:53 jmcneill Exp $"); 45 46 #include "opt_inet.h" 47 #include "bpfilter.h" 48 #include "rnd.h" 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/mbuf.h> 53 #include <sys/malloc.h> 54 #include <sys/kernel.h> 55 #include <sys/socket.h> 56 #include <sys/ioctl.h> 57 #include <sys/errno.h> 58 #include <sys/device.h> 59 60 #if NRND > 0 61 #include <sys/rnd.h> 62 #endif 63 64 #include <net/if.h> 65 #include <net/if_dl.h> 66 #include <net/if_media.h> 67 #include <net/if_ether.h> 68 69 #include <machine/endian.h> 70 71 #if NBPFILTER > 0 72 #include <net/bpf.h> 73 #endif 74 75 #ifdef INET 76 #include <netinet/in.h> 77 #include <netinet/if_inarp.h> 78 #endif 79 80 81 #include <sys/bus.h> 82 #include <sys/intr.h> 83 84 #include <dev/mii/miivar.h> 85 86 #include <dev/ic/i82557reg.h> 87 #include <dev/ic/i82557var.h> 88 89 #include <dev/pci/pcivar.h> 90 #include <dev/pci/pcireg.h> 91 #include <dev/pci/pcidevs.h> 92 93 #include <dev/cardbus/cardbusvar.h> 94 #include <dev/pci/pcidevs.h> 95 96 static int fxp_cardbus_match(struct device *, struct cfdata *, void *); 97 static void fxp_cardbus_attach(struct device *, struct device *, void *); 98 static int fxp_cardbus_detach(struct device * self, int flags); 99 static void fxp_cardbus_setup(struct fxp_softc * sc); 100 static int fxp_cardbus_enable(struct fxp_softc * sc); 101 static void fxp_cardbus_disable(struct fxp_softc * sc); 102 103 struct fxp_cardbus_softc { 104 struct fxp_softc sc; 105 cardbus_devfunc_t ct; 106 pcireg_t base0_reg; 107 pcireg_t base1_reg; 108 bus_size_t size; 109 }; 110 111 CFATTACH_DECL(fxp_cardbus, sizeof(struct fxp_cardbus_softc), 112 fxp_cardbus_match, fxp_cardbus_attach, fxp_cardbus_detach, fxp_activate); 113 114 #ifdef CBB_DEBUG 115 #define DPRINTF(X) printf X 116 #else 117 #define DPRINTF(X) 118 #endif 119 120 static int 121 fxp_cardbus_match(struct device *parent, struct cfdata *match, 122 void *aux) 123 { 124 struct cardbus_attach_args *ca = aux; 125 126 if (CARDBUS_VENDOR(ca->ca_id) == PCI_VENDOR_INTEL && 127 CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_INTEL_82557) 128 return (1); 129 130 return (0); 131 } 132 133 static void 134 fxp_cardbus_attach(struct device *parent, struct device *self, 135 void *aux) 136 { 137 static const char thisfunc[] = "fxp_cardbus_attach"; 138 139 struct fxp_softc *sc = device_private(self); 140 struct fxp_cardbus_softc *csc = device_private(self); 141 struct cardbus_attach_args *ca = aux; 142 bus_space_tag_t iot, memt; 143 bus_space_handle_t ioh, memh; 144 145 bus_addr_t adr; 146 bus_size_t size; 147 148 csc->ct = ca->ca_ct; 149 150 /* 151 * Map control/status registers. 152 */ 153 if (Cardbus_mapreg_map(csc->ct, CARDBUS_BASE1_REG, 154 PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, &adr, &size) == 0) { 155 csc->base1_reg = adr | 1; 156 sc->sc_st = iot; 157 sc->sc_sh = ioh; 158 csc->size = size; 159 } else if (Cardbus_mapreg_map(csc->ct, CARDBUS_BASE0_REG, 160 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 161 0, &memt, &memh, &adr, &size) == 0) { 162 csc->base0_reg = adr; 163 sc->sc_st = memt; 164 sc->sc_sh = memh; 165 csc->size = size; 166 } else 167 panic("%s: failed to allocate mem and io space", thisfunc); 168 169 170 if (ca->ca_cis.cis1_info[0] && ca->ca_cis.cis1_info[1]) 171 printf(": %s %s\n", ca->ca_cis.cis1_info[0], 172 ca->ca_cis.cis1_info[1]); 173 else 174 printf("\n"); 175 176 sc->sc_dmat = ca->ca_dmat; 177 sc->sc_enable = fxp_cardbus_enable; 178 sc->sc_disable = fxp_cardbus_disable; 179 sc->sc_enabled = 0; 180 181 fxp_enable(sc); 182 fxp_attach(sc); 183 fxp_disable(sc); 184 185 if (!pmf_driver_register(self, NULL, NULL)) 186 aprint_error_dev(self, "couldn't establish power handler\n"); 187 else 188 pmf_class_network_register(self, &sc->sc_ethercom.ec_if); 189 } 190 191 static void 192 fxp_cardbus_setup(struct fxp_softc * sc) 193 { 194 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *) sc; 195 struct cardbus_softc *psc = 196 (struct cardbus_softc *) device_parent(&sc->sc_dev); 197 cardbus_chipset_tag_t cc = psc->sc_cc; 198 cardbus_function_tag_t cf = psc->sc_cf; 199 pcireg_t command; 200 201 cardbustag_t tag = cardbus_make_tag(cc, cf, csc->ct->ct_bus, 202 csc->ct->ct_func); 203 204 command = Cardbus_conf_read(csc->ct, tag, CARDBUS_COMMAND_STATUS_REG); 205 if (csc->base0_reg) { 206 Cardbus_conf_write(csc->ct, tag, 207 CARDBUS_BASE0_REG, csc->base0_reg); 208 (cf->cardbus_ctrl) (cc, CARDBUS_MEM_ENABLE); 209 command |= CARDBUS_COMMAND_MEM_ENABLE | 210 CARDBUS_COMMAND_MASTER_ENABLE; 211 } else if (csc->base1_reg) { 212 Cardbus_conf_write(csc->ct, tag, 213 CARDBUS_BASE1_REG, csc->base1_reg); 214 (cf->cardbus_ctrl) (cc, CARDBUS_IO_ENABLE); 215 command |= (CARDBUS_COMMAND_IO_ENABLE | 216 CARDBUS_COMMAND_MASTER_ENABLE); 217 } 218 219 (cf->cardbus_ctrl) (cc, CARDBUS_BM_ENABLE); 220 221 /* enable the card */ 222 Cardbus_conf_write(csc->ct, tag, CARDBUS_COMMAND_STATUS_REG, command); 223 } 224 225 static int 226 fxp_cardbus_enable(struct fxp_softc * sc) 227 { 228 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *) sc; 229 struct cardbus_softc *psc = 230 (struct cardbus_softc *) device_parent(&sc->sc_dev); 231 cardbus_chipset_tag_t cc = psc->sc_cc; 232 cardbus_function_tag_t cf = psc->sc_cf; 233 234 Cardbus_function_enable(csc->ct); 235 236 fxp_cardbus_setup(sc); 237 238 /* Map and establish the interrupt. */ 239 240 sc->sc_ih = cardbus_intr_establish(cc, cf, psc->sc_intrline, IPL_NET, 241 fxp_intr, sc); 242 if (NULL == sc->sc_ih) { 243 printf("%s: couldn't establish interrupt\n", 244 sc->sc_dev.dv_xname); 245 return 1; 246 } 247 248 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 249 psc->sc_intrline); 250 251 return 0; 252 } 253 254 static void 255 fxp_cardbus_disable(struct fxp_softc * sc) 256 { 257 struct cardbus_softc *psc = 258 (struct cardbus_softc *) device_parent(&sc->sc_dev); 259 cardbus_chipset_tag_t cc = psc->sc_cc; 260 cardbus_function_tag_t cf = psc->sc_cf; 261 262 /* Remove interrupt handler. */ 263 cardbus_intr_disestablish(cc, cf, sc->sc_ih); 264 265 Cardbus_function_disable(((struct fxp_cardbus_softc *) sc)->ct); 266 } 267 268 static int 269 fxp_cardbus_detach(struct device *self, int flags) 270 { 271 struct fxp_softc *sc = device_private(self); 272 struct fxp_cardbus_softc *csc = device_private(self); 273 struct cardbus_devfunc *ct = csc->ct; 274 int rv, reg; 275 276 #ifdef DIAGNOSTIC 277 if (ct == NULL) 278 panic("%s: data structure lacks", sc->sc_dev.dv_xname); 279 #endif 280 281 rv = fxp_detach(sc); 282 if (rv == 0) { 283 /* 284 * Unhook the interrupt handler. 285 */ 286 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih); 287 288 /* 289 * release bus space and close window 290 */ 291 if (csc->base0_reg) 292 reg = CARDBUS_BASE0_REG; 293 else 294 reg = CARDBUS_BASE1_REG; 295 Cardbus_mapreg_unmap(ct, reg, sc->sc_st, sc->sc_sh, csc->size); 296 } 297 return (rv); 298 } 299
Indexes created Tue Sep 30 11:09:46 GMT 2025