1 /* $NetBSD: if_fxp_cardbus.c,v 1.53 2022/09/25 17:33:19 thorpej 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 1.53 2022/09/25 17:33:19 thorpej 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/kernel.h> 45 #include <sys/socket.h> 46 #include <sys/ioctl.h> 47 #include <sys/errno.h> 48 #include <sys/device.h> 49 50 #include <net/if.h> 51 #include <net/if_dl.h> 52 #include <net/if_media.h> 53 #include <net/if_ether.h> 54 55 #include <machine/endian.h> 56 57 #ifdef INET 58 #include <netinet/in.h> 59 #include <netinet/if_inarp.h> 60 #endif 61 62 63 #include <sys/bus.h> 64 #include <sys/intr.h> 65 66 #include <dev/mii/miivar.h> 67 68 #include <dev/ic/i82557reg.h> 69 #include <dev/ic/i82557var.h> 70 71 #include <dev/pci/pcivar.h> 72 #include <dev/pci/pcireg.h> 73 #include <dev/pci/pcidevs.h> 74 75 #include <dev/cardbus/cardbusvar.h> 76 #include <dev/pci/pcidevs.h> 77 78 static int fxp_cardbus_match(device_t, cfdata_t, void *); 79 static void fxp_cardbus_attach(device_t, device_t, void *); 80 static int fxp_cardbus_detach(device_t, int); 81 static void fxp_cardbus_setup(struct fxp_softc *); 82 static int fxp_cardbus_enable(struct fxp_softc *); 83 static void fxp_cardbus_disable(struct fxp_softc *); 84 85 struct fxp_cardbus_softc { 86 struct fxp_softc sc; 87 cardbus_devfunc_t ct; 88 pcitag_t tag; 89 pcireg_t base0_reg; 90 pcireg_t base1_reg; 91 }; 92 93 CFATTACH_DECL3_NEW(fxp_cardbus, sizeof(struct fxp_cardbus_softc), 94 fxp_cardbus_match, fxp_cardbus_attach, fxp_cardbus_detach, fxp_activate, 95 NULL, null_childdetached, DVF_DETACH_SHUTDOWN); 96 97 #ifdef CBB_DEBUG 98 #define DPRINTF(X) printf X 99 #else 100 #define DPRINTF(X) 101 #endif 102 103 static int 104 fxp_cardbus_match(device_t parent, cfdata_t match, void *aux) 105 { 106 struct cardbus_attach_args *ca = aux; 107 108 if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_INTEL && 109 PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_INTEL_8255X) 110 return (1); 111 112 return (0); 113 } 114 115 static void 116 fxp_cardbus_attach(device_t parent, device_t self, void *aux) 117 { 118 struct fxp_cardbus_softc *csc = device_private(self); 119 struct fxp_softc *sc = &csc->sc; 120 struct cardbus_attach_args *ca = aux; 121 bus_space_tag_t iot, memt; 122 bus_space_handle_t ioh, memh; 123 124 bus_addr_t adr; 125 126 sc->sc_dev = self; 127 csc->ct = ca->ca_ct; 128 csc->tag = ca->ca_tag; 129 130 /* 131 * Map control/status registers. 132 */ 133 if (Cardbus_mapreg_map(csc->ct, PCI_BAR1, 134 PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, &adr, &sc->sc_size) == 0) { 135 csc->base1_reg = adr | 1; 136 sc->sc_st = iot; 137 sc->sc_sh = ioh; 138 } else if (Cardbus_mapreg_map(csc->ct, PCI_BAR0, 139 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 140 0, &memt, &memh, &adr, &sc->sc_size) == 0) { 141 csc->base0_reg = adr; 142 sc->sc_st = memt; 143 sc->sc_sh = memh; 144 } else 145 panic("%s: failed to allocate mem and io space", __func__); 146 147 if (ca->ca_cis.cis1_info[0] && ca->ca_cis.cis1_info[1]) 148 printf(": %s %s\n", ca->ca_cis.cis1_info[0], 149 ca->ca_cis.cis1_info[1]); 150 else 151 printf("\n"); 152 153 sc->sc_rev = PCI_REVISION(ca->ca_class); 154 if (sc->sc_rev >= FXP_REV_82558_A4) 155 sc->sc_flags |= FXPF_FC|FXPF_EXT_TXCB; 156 if (sc->sc_rev >= FXP_REV_82559_A0) 157 sc->sc_flags |= FXPF_82559_RXCSUM; 158 if (sc->sc_rev >= FXP_REV_82550) { 159 sc->sc_flags &= ~FXPF_82559_RXCSUM; 160 sc->sc_flags |= FXPF_EXT_RFA; 161 } 162 163 sc->sc_dmat = ca->ca_dmat; 164 sc->sc_enable = fxp_cardbus_enable; 165 sc->sc_disable = fxp_cardbus_disable; 166 sc->sc_enabled = 0; 167 168 fxp_enable(sc); 169 fxp_attach(sc); 170 fxp_disable(sc); 171 172 if (pmf_device_register(self, NULL, NULL)) 173 pmf_class_network_register(self, &sc->sc_ethercom.ec_if); 174 else 175 aprint_error_dev(self, "couldn't establish power handler\n"); 176 } 177 178 static void 179 fxp_cardbus_setup(struct fxp_softc * sc) 180 { 181 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc; 182 pcireg_t command; 183 184 pcitag_t tag = csc->tag; 185 186 command = Cardbus_conf_read(csc->ct, tag, PCI_COMMAND_STATUS_REG); 187 if (csc->base0_reg) { 188 Cardbus_conf_write(csc->ct, tag, 189 PCI_BAR0, csc->base0_reg); 190 command |= PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE; 191 } else if (csc->base1_reg) { 192 Cardbus_conf_write(csc->ct, tag, 193 PCI_BAR1, csc->base1_reg); 194 command |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MASTER_ENABLE; 195 } 196 197 /* enable the card */ 198 Cardbus_conf_write(csc->ct, tag, PCI_COMMAND_STATUS_REG, command); 199 } 200 201 static int 202 fxp_cardbus_enable(struct fxp_softc * sc) 203 { 204 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc; 205 cardbus_devfunc_t ct = csc->ct; 206 207 Cardbus_function_enable(csc->ct); 208 209 fxp_cardbus_setup(sc); 210 211 /* Map and establish the interrupt. */ 212 213 sc->sc_ih = Cardbus_intr_establish(ct, IPL_NET, fxp_intr, sc); 214 if (NULL == sc->sc_ih) { 215 aprint_error_dev(sc->sc_dev, "couldn't establish interrupt\n"); 216 return 1; 217 } 218 219 return 0; 220 } 221 222 static void 223 fxp_cardbus_disable(struct fxp_softc * sc) 224 { 225 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc; 226 cardbus_devfunc_t ct = csc->ct; 227 228 /* Remove interrupt handler. */ 229 Cardbus_intr_disestablish(ct, sc->sc_ih); 230 231 Cardbus_function_disable(csc->ct); 232 } 233 234 static int 235 fxp_cardbus_detach(device_t self, int flags) 236 { 237 struct fxp_cardbus_softc *csc = device_private(self); 238 struct fxp_softc *sc = &csc->sc; 239 struct cardbus_devfunc *ct = csc->ct; 240 int rv, reg; 241 242 #ifdef DIAGNOSTIC 243 if (ct == NULL) 244 panic("%s: data structure lacks", device_xname(self)); 245 #endif 246 247 if ((rv = fxp_detach(sc, flags)) != 0) 248 return rv; 249 /* 250 * Unhook the interrupt handler. 251 */ 252 Cardbus_intr_disestablish(ct, sc->sc_ih); 253 254 /* 255 * release bus space and close window 256 */ 257 if (csc->base0_reg) 258 reg = PCI_BAR0; 259 else 260 reg = PCI_BAR1; 261 Cardbus_mapreg_unmap(ct, reg, sc->sc_st, sc->sc_sh, sc->sc_size); 262 return 0; 263 } 264
Indexes created Mon Sep 29 21:09:56 GMT 2025