if_fxp_cardbus.c revision 1.52
1 /* $NetBSD: if_fxp_cardbus.c,v 1.52 2016/07/07 06:55:41 msaitoh 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 1.52 2016/07/07 06:55:41 msaitoh 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 <net/if.h> 52 #include <net/if_dl.h> 53 #include <net/if_media.h> 54 #include <net/if_ether.h> 55 56 #include <machine/endian.h> 57 58 #ifdef INET 59 #include <netinet/in.h> 60 #include <netinet/if_inarp.h> 61 #endif 62 63 64 #include <sys/bus.h> 65 #include <sys/intr.h> 66 67 #include <dev/mii/miivar.h> 68 69 #include <dev/ic/i82557reg.h> 70 #include <dev/ic/i82557var.h> 71 72 #include <dev/pci/pcivar.h> 73 #include <dev/pci/pcireg.h> 74 #include <dev/pci/pcidevs.h> 75 76 #include <dev/cardbus/cardbusvar.h> 77 #include <dev/pci/pcidevs.h> 78 79 static int fxp_cardbus_match(device_t, cfdata_t, void *); 80 static void fxp_cardbus_attach(device_t, device_t, void *); 81 static int fxp_cardbus_detach(device_t, int); 82 static void fxp_cardbus_setup(struct fxp_softc *); 83 static int fxp_cardbus_enable(struct fxp_softc *); 84 static void fxp_cardbus_disable(struct fxp_softc *); 85 86 struct fxp_cardbus_softc { 87 struct fxp_softc sc; 88 cardbus_devfunc_t ct; 89 pcitag_t tag; 90 pcireg_t base0_reg; 91 pcireg_t base1_reg; 92 }; 93 94 CFATTACH_DECL3_NEW(fxp_cardbus, sizeof(struct fxp_cardbus_softc), 95 fxp_cardbus_match, fxp_cardbus_attach, fxp_cardbus_detach, fxp_activate, 96 NULL, null_childdetached, DVF_DETACH_SHUTDOWN); 97 98 #ifdef CBB_DEBUG 99 #define DPRINTF(X) printf X 100 #else 101 #define DPRINTF(X) 102 #endif 103 104 static int 105 fxp_cardbus_match(device_t parent, cfdata_t match, void *aux) 106 { 107 struct cardbus_attach_args *ca = aux; 108 109 if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_INTEL && 110 PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_INTEL_8255X) 111 return (1); 112 113 return (0); 114 } 115 116 static void 117 fxp_cardbus_attach(device_t parent, device_t self, void *aux) 118 { 119 struct fxp_cardbus_softc *csc = device_private(self); 120 struct fxp_softc *sc = &csc->sc; 121 struct cardbus_attach_args *ca = aux; 122 bus_space_tag_t iot, memt; 123 bus_space_handle_t ioh, memh; 124 125 bus_addr_t adr; 126 127 sc->sc_dev = self; 128 csc->ct = ca->ca_ct; 129 csc->tag = ca->ca_tag; 130 131 /* 132 * Map control/status registers. 133 */ 134 if (Cardbus_mapreg_map(csc->ct, PCI_BAR1, 135 PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, &adr, &sc->sc_size) == 0) { 136 csc->base1_reg = adr | 1; 137 sc->sc_st = iot; 138 sc->sc_sh = ioh; 139 } else if (Cardbus_mapreg_map(csc->ct, PCI_BAR0, 140 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 141 0, &memt, &memh, &adr, &sc->sc_size) == 0) { 142 csc->base0_reg = adr; 143 sc->sc_st = memt; 144 sc->sc_sh = memh; 145 } else 146 panic("%s: failed to allocate mem and io space", __func__); 147 148 if (ca->ca_cis.cis1_info[0] && ca->ca_cis.cis1_info[1]) 149 printf(": %s %s\n", ca->ca_cis.cis1_info[0], 150 ca->ca_cis.cis1_info[1]); 151 else 152 printf("\n"); 153 154 sc->sc_rev = PCI_REVISION(ca->ca_class); 155 if (sc->sc_rev >= FXP_REV_82558_A4) 156 sc->sc_flags |= FXPF_FC|FXPF_EXT_TXCB; 157 if (sc->sc_rev >= FXP_REV_82559_A0) 158 sc->sc_flags |= FXPF_82559_RXCSUM; 159 if (sc->sc_rev >= FXP_REV_82550) { 160 sc->sc_flags &= ~FXPF_82559_RXCSUM; 161 sc->sc_flags |= FXPF_EXT_RFA; 162 } 163 164 sc->sc_dmat = ca->ca_dmat; 165 sc->sc_enable = fxp_cardbus_enable; 166 sc->sc_disable = fxp_cardbus_disable; 167 sc->sc_enabled = 0; 168 169 fxp_enable(sc); 170 fxp_attach(sc); 171 fxp_disable(sc); 172 173 if (pmf_device_register(self, NULL, NULL)) 174 pmf_class_network_register(self, &sc->sc_ethercom.ec_if); 175 else 176 aprint_error_dev(self, "couldn't establish power handler\n"); 177 } 178 179 static void 180 fxp_cardbus_setup(struct fxp_softc * sc) 181 { 182 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc; 183 pcireg_t command; 184 185 pcitag_t tag = csc->tag; 186 187 command = Cardbus_conf_read(csc->ct, tag, PCI_COMMAND_STATUS_REG); 188 if (csc->base0_reg) { 189 Cardbus_conf_write(csc->ct, tag, 190 PCI_BAR0, csc->base0_reg); 191 command |= PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE; 192 } else if (csc->base1_reg) { 193 Cardbus_conf_write(csc->ct, tag, 194 PCI_BAR1, csc->base1_reg); 195 command |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MASTER_ENABLE; 196 } 197 198 /* enable the card */ 199 Cardbus_conf_write(csc->ct, tag, PCI_COMMAND_STATUS_REG, command); 200 } 201 202 static int 203 fxp_cardbus_enable(struct fxp_softc * sc) 204 { 205 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc; 206 cardbus_devfunc_t ct = csc->ct; 207 208 Cardbus_function_enable(csc->ct); 209 210 fxp_cardbus_setup(sc); 211 212 /* Map and establish the interrupt. */ 213 214 sc->sc_ih = Cardbus_intr_establish(ct, IPL_NET, fxp_intr, sc); 215 if (NULL == sc->sc_ih) { 216 aprint_error_dev(sc->sc_dev, "couldn't establish interrupt\n"); 217 return 1; 218 } 219 220 return 0; 221 } 222 223 static void 224 fxp_cardbus_disable(struct fxp_softc * sc) 225 { 226 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc; 227 cardbus_devfunc_t ct = csc->ct; 228 229 /* Remove interrupt handler. */ 230 Cardbus_intr_disestablish(ct, sc->sc_ih); 231 232 Cardbus_function_disable(csc->ct); 233 } 234 235 static int 236 fxp_cardbus_detach(device_t self, int flags) 237 { 238 struct fxp_cardbus_softc *csc = device_private(self); 239 struct fxp_softc *sc = &csc->sc; 240 struct cardbus_devfunc *ct = csc->ct; 241 int rv, reg; 242 243 #ifdef DIAGNOSTIC 244 if (ct == NULL) 245 panic("%s: data structure lacks", device_xname(self)); 246 #endif 247 248 if ((rv = fxp_detach(sc, flags)) != 0) 249 return rv; 250 /* 251 * Unhook the interrupt handler. 252 */ 253 Cardbus_intr_disestablish(ct, sc->sc_ih); 254 255 /* 256 * release bus space and close window 257 */ 258 if (csc->base0_reg) 259 reg = PCI_BAR0; 260 else 261 reg = PCI_BAR1; 262 Cardbus_mapreg_unmap(ct, reg, sc->sc_st, sc->sc_sh, sc->sc_size); 263 return 0; 264 } 265
Indexes created Tue Sep 30 11:09:46 GMT 2025