if_fxp_cardbus.c revision 1.50
1 /* $NetBSD: if_fxp_cardbus.c,v 1.50 2012/02/02 19:43:02 tls 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * CardBus front-end for the Intel i82557 family of Ethernet chips. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: if_fxp_cardbus.c,v 1.50 2012/02/02 19:43:02 tls Exp $"); 38 39 #include "opt_inet.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/mbuf.h> 44 #include <sys/malloc.h> 45 #include <sys/kernel.h> 46 #include <sys/socket.h> 47 #include <sys/ioctl.h> 48 #include <sys/errno.h> 49 #include <sys/device.h> 50 51 #include <sys/rnd.h> 52 53 #include <net/if.h> 54 #include <net/if_dl.h> 55 #include <net/if_media.h> 56 #include <net/if_ether.h> 57 58 #include <machine/endian.h> 59 60 #ifdef INET 61 #include <netinet/in.h> 62 #include <netinet/if_inarp.h> 63 #endif 64 65 66 #include <sys/bus.h> 67 #include <sys/intr.h> 68 69 #include <dev/mii/miivar.h> 70 71 #include <dev/ic/i82557reg.h> 72 #include <dev/ic/i82557var.h> 73 74 #include <dev/pci/pcivar.h> 75 #include <dev/pci/pcireg.h> 76 #include <dev/pci/pcidevs.h> 77 78 #include <dev/cardbus/cardbusvar.h> 79 #include <dev/pci/pcidevs.h> 80 81 static int fxp_cardbus_match(device_t, cfdata_t, void *); 82 static void fxp_cardbus_attach(device_t, device_t, void *); 83 static int fxp_cardbus_detach(device_t, int); 84 static void fxp_cardbus_setup(struct fxp_softc *); 85 static int fxp_cardbus_enable(struct fxp_softc *); 86 static void fxp_cardbus_disable(struct fxp_softc *); 87 88 struct fxp_cardbus_softc { 89 struct fxp_softc sc; 90 cardbus_devfunc_t ct; 91 pcitag_t tag; 92 pcireg_t base0_reg; 93 pcireg_t base1_reg; 94 }; 95 96 CFATTACH_DECL3_NEW(fxp_cardbus, sizeof(struct fxp_cardbus_softc), 97 fxp_cardbus_match, fxp_cardbus_attach, fxp_cardbus_detach, fxp_activate, 98 NULL, null_childdetached, DVF_DETACH_SHUTDOWN); 99 100 #ifdef CBB_DEBUG 101 #define DPRINTF(X) printf X 102 #else 103 #define DPRINTF(X) 104 #endif 105 106 static int 107 fxp_cardbus_match(device_t parent, cfdata_t match, 108 void *aux) 109 { 110 struct cardbus_attach_args *ca = aux; 111 112 if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_INTEL && 113 PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_INTEL_8255X) 114 return (1); 115 116 return (0); 117 } 118 119 static void 120 fxp_cardbus_attach(device_t parent, device_t self, 121 void *aux) 122 { 123 struct fxp_cardbus_softc *csc = device_private(self); 124 struct fxp_softc *sc = &csc->sc; 125 struct cardbus_attach_args *ca = aux; 126 bus_space_tag_t iot, memt; 127 bus_space_handle_t ioh, memh; 128 129 bus_addr_t adr; 130 131 sc->sc_dev = self; 132 csc->ct = ca->ca_ct; 133 csc->tag = ca->ca_tag; 134 135 /* 136 * Map control/status registers. 137 */ 138 if (Cardbus_mapreg_map(csc->ct, PCI_BAR1, 139 PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, &adr, &sc->sc_size) == 0) { 140 csc->base1_reg = adr | 1; 141 sc->sc_st = iot; 142 sc->sc_sh = ioh; 143 } else if (Cardbus_mapreg_map(csc->ct, PCI_BAR0, 144 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 145 0, &memt, &memh, &adr, &sc->sc_size) == 0) { 146 csc->base0_reg = adr; 147 sc->sc_st = memt; 148 sc->sc_sh = memh; 149 } else 150 panic("%s: failed to allocate mem and io space", __func__); 151 152 if (ca->ca_cis.cis1_info[0] && ca->ca_cis.cis1_info[1]) 153 printf(": %s %s\n", ca->ca_cis.cis1_info[0], 154 ca->ca_cis.cis1_info[1]); 155 else 156 printf("\n"); 157 158 sc->sc_rev = PCI_REVISION(ca->ca_class); 159 if (sc->sc_rev >= FXP_REV_82558_A4) 160 sc->sc_flags |= FXPF_FC|FXPF_EXT_TXCB; 161 if (sc->sc_rev >= FXP_REV_82559_A0) 162 sc->sc_flags |= FXPF_82559_RXCSUM; 163 if (sc->sc_rev >= FXP_REV_82550) { 164 sc->sc_flags &= ~FXPF_82559_RXCSUM; 165 sc->sc_flags |= FXPF_EXT_RFA; 166 } 167 168 sc->sc_dmat = ca->ca_dmat; 169 sc->sc_enable = fxp_cardbus_enable; 170 sc->sc_disable = fxp_cardbus_disable; 171 sc->sc_enabled = 0; 172 173 fxp_enable(sc); 174 fxp_attach(sc); 175 fxp_disable(sc); 176 177 if (pmf_device_register(self, NULL, NULL)) 178 pmf_class_network_register(self, &sc->sc_ethercom.ec_if); 179 else 180 aprint_error_dev(self, "couldn't establish power handler\n"); 181 } 182 183 static void 184 fxp_cardbus_setup(struct fxp_softc * sc) 185 { 186 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc; 187 pcireg_t command; 188 189 pcitag_t tag = csc->tag; 190 191 command = Cardbus_conf_read(csc->ct, tag, PCI_COMMAND_STATUS_REG); 192 if (csc->base0_reg) { 193 Cardbus_conf_write(csc->ct, tag, 194 PCI_BAR0, csc->base0_reg); 195 command |= PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE; 196 } else if (csc->base1_reg) { 197 Cardbus_conf_write(csc->ct, tag, 198 PCI_BAR1, csc->base1_reg); 199 command |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MASTER_ENABLE; 200 } 201 202 /* enable the card */ 203 Cardbus_conf_write(csc->ct, tag, PCI_COMMAND_STATUS_REG, command); 204 } 205 206 static int 207 fxp_cardbus_enable(struct fxp_softc * sc) 208 { 209 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc; 210 cardbus_devfunc_t ct = csc->ct; 211 212 Cardbus_function_enable(csc->ct); 213 214 fxp_cardbus_setup(sc); 215 216 /* Map and establish the interrupt. */ 217 218 sc->sc_ih = Cardbus_intr_establish(ct, IPL_NET, fxp_intr, sc); 219 if (NULL == sc->sc_ih) { 220 aprint_error_dev(sc->sc_dev, "couldn't establish interrupt\n"); 221 return 1; 222 } 223 224 return 0; 225 } 226 227 static void 228 fxp_cardbus_disable(struct fxp_softc * sc) 229 { 230 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc; 231 cardbus_devfunc_t ct = csc->ct; 232 233 /* Remove interrupt handler. */ 234 Cardbus_intr_disestablish(ct, sc->sc_ih); 235 236 Cardbus_function_disable(csc->ct); 237 } 238 239 static int 240 fxp_cardbus_detach(device_t self, int flags) 241 { 242 struct fxp_cardbus_softc *csc = device_private(self); 243 struct fxp_softc *sc = &csc->sc; 244 struct cardbus_devfunc *ct = csc->ct; 245 int rv, reg; 246 247 #ifdef DIAGNOSTIC 248 if (ct == NULL) 249 panic("%s: data structure lacks", device_xname(self)); 250 #endif 251 252 if ((rv = fxp_detach(sc, flags)) != 0) 253 return rv; 254 /* 255 * Unhook the interrupt handler. 256 */ 257 Cardbus_intr_disestablish(ct, sc->sc_ih); 258 259 /* 260 * release bus space and close window 261 */ 262 if (csc->base0_reg) 263 reg = PCI_BAR0; 264 else 265 reg = PCI_BAR1; 266 Cardbus_mapreg_unmap(ct, reg, sc->sc_st, sc->sc_sh, sc->sc_size); 267 return 0; 268 } 269
Indexes created Thu Oct 23 22:10:10 GMT 2025