if_re_pci.c revision 1.39
1/* $OpenBSD: if_re_pci.c,v 1.39 2013/08/07 01:06:36 bluhm Exp $ */ 2 3/* 4 * Copyright (c) 2005 Peter Valchev <pvalchev@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19/* 20 * PCI front-end for the Realtek 8169 21 */ 22 23#include <sys/param.h> 24#include <sys/endian.h> 25#include <sys/systm.h> 26#include <sys/sockio.h> 27#include <sys/mbuf.h> 28#include <sys/malloc.h> 29#include <sys/kernel.h> 30#include <sys/device.h> 31#include <sys/timeout.h> 32#include <sys/socket.h> 33 34#include <net/if.h> 35#include <net/if_dl.h> 36#include <net/if_media.h> 37 38#ifdef INET 39#include <netinet/in.h> 40#include <netinet/in_systm.h> 41#include <netinet/ip.h> 42#include <netinet/if_ether.h> 43#endif 44 45#include <dev/mii/mii.h> 46#include <dev/mii/miivar.h> 47 48#include <dev/pci/pcireg.h> 49#include <dev/pci/pcivar.h> 50#include <dev/pci/pcidevs.h> 51 52#include <dev/ic/rtl81x9reg.h> 53#include <dev/ic/revar.h> 54 55struct re_pci_softc { 56 /* General */ 57 struct rl_softc sc_rl; 58 59 /* PCI-specific data */ 60 void *sc_ih; 61 pci_chipset_tag_t sc_pc; 62 pcitag_t sc_pcitag; 63 64 bus_size_t sc_iosize; 65}; 66 67const struct pci_matchid re_pci_devices[] = { 68 { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_CGLAPCIGT }, 69 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T }, 70 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE530T_C1 }, 71 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8101E }, 72 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8168 }, 73 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169 }, 74 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169SC }, 75 { PCI_VENDOR_TTTECH, PCI_PRODUCT_TTTECH_MC322 }, 76 { PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902 } 77}; 78 79#define RE_LINKSYS_EG1032_SUBID 0x00241737 80 81int re_pci_probe(struct device *, void *, void *); 82void re_pci_attach(struct device *, struct device *, void *); 83int re_pci_detach(struct device *, int); 84int re_pci_activate(struct device *, int); 85 86/* 87 * PCI autoconfig definitions 88 */ 89struct cfattach re_pci_ca = { 90 sizeof(struct re_pci_softc), 91 re_pci_probe, 92 re_pci_attach, 93 re_pci_detach, 94 re_pci_activate 95}; 96 97/* 98 * Probe for a Realtek 8169/8110 chip. Check the PCI vendor and device 99 * IDs against our list and return a device name if we find a match. 100 */ 101int 102re_pci_probe(struct device *parent, void *match, void *aux) 103{ 104 struct pci_attach_args *pa = aux; 105 pci_chipset_tag_t pc = pa->pa_pc; 106 pcireg_t subid; 107 108 subid = pci_conf_read(pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 109 110 /* C+ mode 8139's */ 111 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK && 112 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RT8139 && 113 PCI_REVISION(pa->pa_class) == 0x20) 114 return (1); 115 116 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LINKSYS && 117 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LINKSYS_EG1032 && 118 subid == RE_LINKSYS_EG1032_SUBID) 119 return (1); 120 121 return (pci_matchbyid((struct pci_attach_args *)aux, re_pci_devices, 122 nitems(re_pci_devices))); 123} 124 125/* 126 * PCI-specific attach routine 127 */ 128void 129re_pci_attach(struct device *parent, struct device *self, void *aux) 130{ 131 struct re_pci_softc *psc = (struct re_pci_softc *)self; 132 struct rl_softc *sc = &psc->sc_rl; 133 struct pci_attach_args *pa = aux; 134 pci_chipset_tag_t pc = pa->pa_pc; 135 pci_intr_handle_t ih; 136 const char *intrstr = NULL; 137 138 /* Only enable MSI on RT810xE for now. */ 139 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_REALTEK || 140 PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_REALTEK_RT8101E) 141 pa->pa_flags &= ~PCI_FLAGS_MSI_ENABLED; 142 143 pci_set_powerstate(pa->pa_pc, pa->pa_tag, PCI_PMCSR_STATE_D0); 144 145#ifndef SMALL_KERNEL 146 /* Enable power management for wake on lan. */ 147 pci_conf_write(pc, pa->pa_tag, RL_PCI_PMCSR, RL_PME_EN); 148#endif 149 150 /* 151 * Map control/status registers. 152 */ 153 if (pci_mapreg_map(pa, RL_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 154 &sc->rl_btag, &sc->rl_bhandle, NULL, &psc->sc_iosize, 0)) { 155 if (pci_mapreg_map(pa, RL_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 156 &sc->rl_btag, &sc->rl_bhandle, NULL, &psc->sc_iosize, 0)) { 157 printf(": can't map mem or i/o space\n"); 158 return; 159 } 160 } 161 162 /* Allocate interrupt */ 163 if (pci_intr_map_msi(pa, &ih) != 0 && pci_intr_map(pa, &ih) != 0) { 164 printf(": couldn't map interrupt\n"); 165 return; 166 } 167 intrstr = pci_intr_string(pc, ih); 168 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, re_intr, sc, 169 sc->sc_dev.dv_xname); 170 if (psc->sc_ih == NULL) { 171 printf(": couldn't establish interrupt"); 172 if (intrstr != NULL) 173 printf(" at %s", intrstr); 174 return; 175 } 176 177 sc->sc_dmat = pa->pa_dmat; 178 psc->sc_pc = pc; 179 180 /* 181 * PCI Express check. 182 */ 183 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PCIEXPRESS, 184 NULL, NULL)) 185 sc->rl_flags |= RL_FLAG_PCIE; 186 187 /* Call bus-independent attach routine */ 188 if (re_attach(sc, intrstr)) { 189 pci_intr_disestablish(pc, psc->sc_ih); 190 bus_space_unmap(sc->rl_btag, sc->rl_bhandle, psc->sc_iosize); 191 } 192} 193 194int 195re_pci_detach(struct device *self, int flags) 196{ 197 struct re_pci_softc *psc = (struct re_pci_softc *)self; 198 struct rl_softc *sc = &psc->sc_rl; 199 struct ifnet *ifp = &sc->sc_arpcom.ac_if; 200 201 /* Remove timeout handler */ 202 timeout_del(&sc->timer_handle); 203 204 /* Detach PHY */ 205 if (LIST_FIRST(&sc->sc_mii.mii_phys) != NULL) 206 mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY); 207 208 /* Delete media stuff */ 209 ifmedia_delete_instance(&sc->sc_mii.mii_media, IFM_INST_ANY); 210 ether_ifdetach(ifp); 211 if_detach(ifp); 212 213 /* Disable interrupts */ 214 if (psc->sc_ih != NULL) 215 pci_intr_disestablish(psc->sc_pc, psc->sc_ih); 216 217 /* Free pci resources */ 218 bus_space_unmap(sc->rl_btag, sc->rl_bhandle, psc->sc_iosize); 219 220 return (0); 221} 222 223int 224re_pci_activate(struct device *self, int act) 225{ 226 struct re_pci_softc *psc = (struct re_pci_softc *)self; 227 struct rl_softc *sc = &psc->sc_rl; 228 struct ifnet *ifp = &sc->sc_arpcom.ac_if; 229 230 switch (act) { 231 case DVACT_SUSPEND: 232 if (ifp->if_flags & IFF_RUNNING) 233 re_stop(ifp); 234 break; 235 case DVACT_RESUME: 236 re_reset(sc); 237 if (ifp->if_flags & IFF_UP) 238 re_init(ifp); 239 break; 240 } 241 242 return (0); 243} 244