if_re_pci.c revision 1.5
1 /* $NetBSD: if_re_pci.c,v 1.5 2005/01/22 04:34:22 briggs Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1998-2003 5 * Bill Paul <wpaul (at) windriver.com>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* $FreeBSD: /repoman/r/ncvs/src/sys/dev/re/if_re.c,v 1.20 2004/04/11 20:34:08 ru Exp $ */ 36 37 /* 38 * RealTek 8139C+/8169/8169S/8110S PCI NIC driver 39 * 40 * Written by Bill Paul <wpaul (at) windriver.com> 41 * Senior Networking Software Engineer 42 * Wind River Systems 43 * 44 * NetBSD bus-specific frontends for written by 45 * Jonathan Stone <jonathan (at) netbsd.org> 46 */ 47 48 #include "bpfilter.h" 49 #include "vlan.h" 50 51 #include <sys/types.h> 52 53 #include <sys/param.h> 54 #include <sys/endian.h> 55 #include <sys/systm.h> 56 #include <sys/sockio.h> 57 #include <sys/mbuf.h> 58 #include <sys/malloc.h> 59 #include <sys/kernel.h> 60 #include <sys/socket.h> 61 #include <sys/device.h> 62 63 #include <net/if.h> 64 #include <net/if_arp.h> 65 #include <net/if_dl.h> 66 #include <net/if_ether.h> 67 #include <net/if_media.h> 68 #include <net/if_vlanvar.h> 69 70 #include <machine/bus.h> 71 72 #include <dev/mii/mii.h> 73 #include <dev/mii/miivar.h> 74 75 #include <dev/pci/pcireg.h> 76 #include <dev/pci/pcivar.h> 77 #include <dev/pci/pcidevs.h> 78 79 /* 80 * Default to using PIO access for this driver. 81 */ 82 #define RE_USEIOSPACE 83 84 #include <dev/ic/rtl81x9reg.h> 85 #include <dev/ic/rtl81x9var.h> 86 #include <dev/ic/rtl8169var.h> 87 88 struct re_pci_softc { 89 struct rtk_softc sc_rtk; 90 91 void *sc_ih; 92 pci_chipset_tag_t sc_pc; 93 pcitag_t sc_pcitag; 94 }; 95 96 static int re_pci_probe(struct device *, struct cfdata *, void *); 97 static void re_pci_attach(struct device *, struct device *, void *); 98 99 /* 100 * Various supported device vendors/types and their names. 101 */ 102 static struct rtk_type re_devs[] = { 103 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, RTK_HWREV_8139CPLUS, 104 "RealTek 8139C+ 10/100BaseTX" }, 105 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8169, 106 "RealTek 8169 Gigabit Ethernet" }, 107 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8169S, 108 "RealTek 8169S Single-chip Gigabit Ethernet" }, 109 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, RTK_HWREV_8110S, 110 "RealTek 8110S Single-chip Gigabit Ethernet" }, 111 { 0, 0, 0, NULL } 112 }; 113 114 static struct rtk_hwrev re_hwrevs[] = { 115 { RTK_HWREV_8139, RTK_8139, "" }, 116 { RTK_HWREV_8139A, RTK_8139, "A" }, 117 { RTK_HWREV_8139AG, RTK_8139, "A-G" }, 118 { RTK_HWREV_8139B, RTK_8139, "B" }, 119 { RTK_HWREV_8130, RTK_8139, "8130" }, 120 { RTK_HWREV_8139C, RTK_8139, "C" }, 121 { RTK_HWREV_8139D, RTK_8139, "8139D/8100B/8100C" }, 122 { RTK_HWREV_8139CPLUS, RTK_8139CPLUS, "C+"}, 123 { RTK_HWREV_8169, RTK_8169, "8169"}, 124 { RTK_HWREV_8169S, RTK_8169, "8169S"}, 125 { RTK_HWREV_8110S, RTK_8169, "8110S"}, 126 { RTK_HWREV_8100, RTK_8139, "8100"}, 127 { RTK_HWREV_8101, RTK_8139, "8101"}, 128 { 0, 0, NULL } 129 }; 130 131 CFATTACH_DECL(re_pci, sizeof(struct re_pci_softc), re_pci_probe, re_pci_attach, 132 NULL, NULL); 133 134 /* 135 * Probe for a RealTek 8139C+/8169/8110 chip. Check the PCI vendor and device 136 * IDs against our list and return a device name if we find a match. 137 */ 138 static int 139 re_pci_probe(struct device *parent, struct cfdata *match, void *aux) 140 { 141 struct rtk_type *t; 142 struct pci_attach_args *pa = aux; 143 bus_space_tag_t rtk_btag; 144 bus_space_handle_t rtk_bhandle; 145 bus_size_t bsize; 146 u_int32_t hwrev; 147 148 t = re_devs; 149 150 while (t->rtk_name != NULL) { 151 if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && 152 (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { 153 154 /* 155 * Temporarily map the I/O space 156 * so we can read the chip ID register. 157 */ 158 if (pci_mapreg_map(pa, RTK_PCI_LOIO, 159 PCI_MAPREG_TYPE_IO, 0, &rtk_btag, 160 &rtk_bhandle, NULL, &bsize)) { 161 aprint_error("can't map i/o space\n"); 162 return 0; 163 } 164 hwrev = bus_space_read_4(rtk_btag, rtk_bhandle, 165 RTK_TXCFG) & RTK_TXCFG_HWREV; 166 bus_space_unmap(rtk_btag, rtk_bhandle, bsize); 167 if (t->rtk_basetype == hwrev) 168 return 2; /* defeat rtk(4) */ 169 } 170 t++; 171 } 172 173 return 0; 174 } 175 176 static void 177 re_pci_attach(struct device *parent, struct device *self, void *aux) 178 { 179 struct re_pci_softc *psc = (void *)self; 180 struct rtk_softc *sc = &psc->sc_rtk; 181 struct pci_attach_args *pa = aux; 182 pci_chipset_tag_t pc = pa->pa_pc; 183 pci_intr_handle_t ih; 184 const char *intrstr = NULL; 185 struct rtk_type *t; 186 struct rtk_hwrev *hw_rev; 187 int hwrev; 188 int error = 0; 189 int pmreg; 190 pcireg_t command; 191 bus_size_t bsize; 192 193 194 /* 195 * Handle power management nonsense. 196 */ 197 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { 198 command = pci_conf_read(pc, pa->pa_tag, pmreg + PCI_PMCSR); 199 if (command & RTK_PSTATE_MASK) { 200 u_int32_t iobase, membase, irq; 201 202 /* Save important PCI config data. */ 203 iobase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOIO); 204 membase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOMEM); 205 irq = pci_conf_read(pc, pa->pa_tag, PCI_INTERRUPT_REG); 206 207 /* Reset the power state. */ 208 aprint_normal("%s: chip is is in D%d power mode " 209 "-- setting to D0\n", sc->sc_dev.dv_xname, 210 command & RTK_PSTATE_MASK); 211 212 command &= ~RTK_PSTATE_MASK; 213 pci_conf_write(pc, pa->pa_tag, 214 pmreg + PCI_PMCSR, command); 215 216 /* Restore PCI config data. */ 217 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOIO, iobase); 218 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOMEM, membase); 219 pci_conf_write(pc, pa->pa_tag, PCI_INTERRUPT_REG, irq); 220 } 221 } 222 223 /* 224 * Map control/status registers. 225 */ 226 command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 227 command |= PCI_COMMAND_MASTER_ENABLE; 228 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 229 230 #ifdef RE_USEIOSPACE 231 if (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 232 &sc->rtk_btag, &sc->rtk_bhandle, NULL, &bsize)) { 233 aprint_error("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 234 return; 235 } 236 #else 237 if (pci_mapreg_map(pa, RTK_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 238 &sc->rtk_btag, &sc->rtk_bhandle, NULL, &bsize)) { 239 aprint_error("%s: can't map mem space\n", sc->sc_dev.dv_xname); 240 return; 241 } 242 #endif 243 t = re_devs; 244 hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; 245 246 while (t->rtk_name != NULL) { 247 if ((PCI_VENDOR(pa->pa_id) == t->rtk_vid) && 248 (PCI_PRODUCT(pa->pa_id) == t->rtk_did)) { 249 250 if (t->rtk_basetype == hwrev) 251 break; 252 } 253 t++; 254 } 255 aprint_normal(": %s\n", t->rtk_name); 256 257 hw_rev = re_hwrevs; 258 hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; 259 while (hw_rev->rtk_desc != NULL) { 260 if (hw_rev->rtk_rev == hwrev) { 261 sc->rtk_type = hw_rev->rtk_type; 262 break; 263 } 264 hw_rev++; 265 } 266 267 sc->sc_dmat = pa->pa_dmat; 268 269 /* 270 * No power/enable/disable machinery for PCI attac; 271 * mark the card enabled now. 272 */ 273 sc->sc_flags |= RTK_ENABLED; 274 275 /* Hook interrupt last to avoid having to lock softc */ 276 /* Allocate interrupt */ 277 if (pci_intr_map(pa, &ih)) { 278 aprint_error("%s: couldn't map interrupt\n", 279 sc->sc_dev.dv_xname); 280 return; 281 } 282 intrstr = pci_intr_string(pc, ih); 283 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, re_intr, sc); 284 if (psc->sc_ih == NULL) { 285 aprint_error("%s: couldn't establish interrupt", 286 sc->sc_dev.dv_xname); 287 if (intrstr != NULL) 288 aprint_error(" at %s", intrstr); 289 aprint_error("\n"); 290 return; 291 } 292 aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 293 294 re_attach(sc); 295 296 /* 297 * Perform hardware diagnostic. 298 * XXX: this diagnostic only makes sense for attachemnts with 64-bit 299 * busses: PCI, but not CardBus. 300 */ 301 error = re_diag(sc); 302 if (error) { 303 aprint_error( 304 "%s: attach aborted due to hardware diag failure\n", 305 sc->sc_dev.dv_xname); 306 307 re_detach(sc); 308 309 if (psc->sc_ih != NULL) { 310 pci_intr_disestablish(pc, psc->sc_ih); 311 psc->sc_ih = NULL; 312 } 313 314 if (bsize) 315 bus_space_unmap(sc->rtk_btag, sc->rtk_bhandle, bsize); 316 } 317 } 318
Indexes created Tue Oct 28 12:10:06 GMT 2025