if_re_pci.c revision 1.8
164562Sgshapiro/* $OpenBSD: if_re_pci.c,v 1.8 2006/05/23 00:41:50 brad Exp $ */ 2261363Sgshapiro 364562Sgshapiro/* 464562Sgshapiro * Copyright (c) 2005 Peter Valchev <pvalchev@openbsd.org> 564562Sgshapiro * 664562Sgshapiro * Permission to use, copy, modify, and distribute this software for any 764562Sgshapiro * purpose with or without fee is hereby granted, provided that the above 864562Sgshapiro * copyright notice and this permission notice appear in all copies. 964562Sgshapiro * 1064562Sgshapiro * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 1164562Sgshapiro * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 1264562Sgshapiro * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13266692Sgshapiro * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 1464562Sgshapiro * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 1590792Sgshapiro * 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/socket.h> 32 33#include <net/if.h> 34#include <net/if_dl.h> 35#include <net/if_media.h> 36 37#ifdef INET 38#include <netinet/in.h> 39#include <netinet/in_systm.h> 40#include <netinet/in_var.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 65const struct pci_matchid re_pci_devices[] = { 66 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8111B }, 67 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169 }, 68 { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_CGLAPCIGT }, 69 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T }, 70 { PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902 }, 71 { PCI_VENDOR_TTTECH, PCI_PRODUCT_TTTECH_MC322 } 72}; 73 74#define RE_LINKSYS_EG1032_SUBID 0x00241737 75 76int re_pci_probe(struct device *, void *, void *); 77void re_pci_attach(struct device *, struct device *, void *); 78 79/* 80 * PCI autoconfig definitions 81 */ 82struct cfattach re_pci_ca = { 83 sizeof(struct re_pci_softc), 84 re_pci_probe, 85 re_pci_attach 86}; 87 88/* 89 * Probe for a Realtek 8169/8110 chip. Check the PCI vendor and device 90 * IDs against our list and return a device name if we find a match. 91 */ 92int 93re_pci_probe(struct device *parent, void *match, void *aux) 94{ 95 struct pci_attach_args *pa = aux; 96 pci_chipset_tag_t pc = pa->pa_pc; 97 pcireg_t subid; 98 99 subid = pci_conf_read(pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 100 101 /* C+ mode 8139's */ 102 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK && 103 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RT8139 && 104 PCI_REVISION(pa->pa_class) == 0x20) 105 return (1); 106 107 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LINKSYS && 108 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LINKSYS_EG1032 && 109 subid == RE_LINKSYS_EG1032_SUBID) 110 return (1); 111 112 return (pci_matchbyid((struct pci_attach_args *)aux, re_pci_devices, 113 sizeof(re_pci_devices)/sizeof(re_pci_devices[0]))); 114} 115 116/* 117 * PCI-specific attach routine 118 */ 119void 120re_pci_attach(struct device *parent, struct device *self, void *aux) 121{ 122 struct re_pci_softc *psc = (struct re_pci_softc *)self; 123 struct rl_softc *sc = &psc->sc_rl; 124 struct pci_attach_args *pa = aux; 125 pci_chipset_tag_t pc = pa->pa_pc; 126 pci_intr_handle_t ih; 127 const char *intrstr = NULL; 128 bus_size_t iosize; 129 pcireg_t command; 130 131 /* 132 * Handle power management nonsense. 133 */ 134 135 command = pci_conf_read(pc, pa->pa_tag, RL_PCI_CAPID) & 0x000000FF; 136 137 if (command == 0x01) { 138 u_int32_t iobase, membase, irq; 139 140 /* Save important PCI config data. */ 141 iobase = pci_conf_read(pc, pa->pa_tag, RL_PCI_LOIO); 142 membase = pci_conf_read(pc, pa->pa_tag, RL_PCI_LOMEM); 143 irq = pci_conf_read(pc, pa->pa_tag, RL_PCI_INTLINE); 144 145 /* Reset the power state. */ 146 printf("%s: chip is is in D%d power mode " 147 "-- setting to D0\n", sc->sc_dev.dv_xname, 148 command & RL_PSTATE_MASK); 149 command &= 0xFFFFFFFC; 150 151 /* Restore PCI config data. */ 152 pci_conf_write(pc, pa->pa_tag, RL_PCI_LOIO, iobase); 153 pci_conf_write(pc, pa->pa_tag, RL_PCI_LOMEM, membase); 154 pci_conf_write(pc, pa->pa_tag, RL_PCI_INTLINE, irq); 155 } 156 157 /* 158 * Map control/status registers. 159 */ 160 command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 161 162 if ((command & (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE)) == 0) { 163 printf(": neither i/o nor mem enabled\n"); 164 return; 165 } 166 167 if (command & PCI_COMMAND_MEM_ENABLE) { 168 if (pci_mapreg_map(pa, RL_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 169 &sc->rl_btag, &sc->rl_bhandle, NULL, &iosize, 0)) { 170 printf(": can't map mem space\n"); 171 return; 172 } 173 } else { 174 if (pci_mapreg_map(pa, RL_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 175 &sc->rl_btag, &sc->rl_bhandle, NULL, &iosize, 0)) { 176 printf(": can't map i/o space\n"); 177 return; 178 } 179 } 180 181 /* Allocate interrupt */ 182 if (pci_intr_map(pa, &ih)) { 183 printf(": couldn't map interrupt\n"); 184 return; 185 } 186 intrstr = pci_intr_string(pc, ih); 187 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, re_intr, sc, 188 sc->sc_dev.dv_xname); 189 if (psc->sc_ih == NULL) { 190 printf(": couldn't establish interrupt"); 191 if (intrstr != NULL) 192 printf(" at %s", intrstr); 193 return; 194 } 195 printf(": %s", intrstr); 196 197 sc->sc_dmat = pa->pa_dmat; 198 sc->sc_flags |= RL_ENABLED; 199 200 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK) { 201 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RT8139) 202 sc->rl_type = RL_8139; 203 else 204 sc->rl_type = RL_8169; 205 } else if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TTTECH && 206 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TTTECH_MC322) 207 sc->rl_type = RL_8139; 208 else 209 sc->rl_type = RL_8169; 210 211 /* Call bus-independent attach routine */ 212 re_attach_common(sc); 213} 214