| 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 | |