if_rtk_pci.c revision 1.25
1 /* $NetBSD: if_rtk_pci.c,v 1.25 2006/09/01 20:28:14 uwe Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1998 5 * Bill Paul <wpaul (at) ctr.columbia.edu>. 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 * FreeBSD Id: if_rl.c,v 1.17 1999/06/19 20:17:37 wpaul Exp 35 */ 36 37 /* 38 * Realtek 8129/8139 PCI NIC driver 39 * 40 * Supports several extremely cheap PCI 10/100 adapters based on 41 * the Realtek chipset. Datasheets can be obtained from 42 * www.realtek.com.tw. 43 * 44 * Written by Bill Paul <wpaul (at) ctr.columbia.edu> 45 * Electrical Engineering Department 46 * Columbia University, New York City 47 */ 48 49 #include <sys/cdefs.h> 50 __KERNEL_RCSID(0, "$NetBSD: if_rtk_pci.c,v 1.25 2006/09/01 20:28:14 uwe Exp $"); 51 52 #include <sys/param.h> 53 #include <sys/systm.h> 54 #include <sys/callout.h> 55 #include <sys/device.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 62 #include <net/if.h> 63 #include <net/if_arp.h> 64 #include <net/if_ether.h> 65 #include <net/if_dl.h> 66 #include <net/if_media.h> 67 68 #include <machine/bus.h> 69 70 #include <dev/pci/pcireg.h> 71 #include <dev/pci/pcivar.h> 72 #include <dev/pci/pcidevs.h> 73 74 #include <dev/mii/mii.h> 75 #include <dev/mii/miivar.h> 76 77 /* 78 * Default to using PIO access for this driver. On SMP systems, 79 * there appear to be problems with memory mapped mode: it looks like 80 * doing too many memory mapped access back to back in rapid succession 81 * can hang the bus. I'm inclined to blame this on crummy design/construction 82 * on the part of Realtek. Memory mapped mode does appear to work on 83 * uniprocessor systems though. 84 */ 85 #if !defined(__sh__) /* XXX: dreamcast, landisk */ 86 #define RTK_USEIOSPACE 87 #endif 88 89 #include <dev/ic/rtl81x9reg.h> 90 #include <dev/ic/rtl81x9var.h> 91 92 struct rtk_pci_softc { 93 struct rtk_softc sc_rtk; /* real rtk softc */ 94 95 /* PCI-specific goo.*/ 96 void *sc_ih; 97 pci_chipset_tag_t sc_pc; /* PCI chipset */ 98 pcitag_t sc_pcitag; /* PCI tag */ 99 100 void *sc_powerhook; /* powerhook ctxt. */ 101 struct pci_conf_state sc_pciconf; 102 }; 103 104 static const struct rtk_type rtk_pci_devs[] = { 105 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8129, 106 RTK_8129, "Realtek 8129 10/100BaseTX" }, 107 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, 108 RTK_8139, "Realtek 8139 10/100BaseTX" }, 109 { PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_MPX5030, 110 RTK_8139, "Accton MPX 5030/5038 10/100BaseTX" }, 111 { PCI_VENDOR_DELTA, PCI_PRODUCT_DELTA_8139, 112 RTK_8139, "Delta Electronics 8139 10/100BaseTX" }, 113 { PCI_VENDOR_ADDTRON, PCI_PRODUCT_ADDTRON_8139, 114 RTK_8139, "Addtron Technology 8139 10/100BaseTX" }, 115 { PCI_VENDOR_SEGA, PCI_PRODUCT_SEGA_BROADBAND, 116 RTK_8139, "SEGA Broadband Adapter" }, 117 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DFE530TXPLUS, 118 RTK_8139, "D-Link Systems DFE 530TX+" }, 119 { PCI_VENDOR_NORTEL, PCI_PRODUCT_NORTEL_BAYSTACK_21, 120 RTK_8139, "Baystack 21 (MPX EN5038) 10/100BaseTX" }, 121 { 0, 0, 0, NULL } 122 }; 123 124 static int rtk_pci_match(struct device *, struct cfdata *, void *); 125 static void rtk_pci_attach(struct device *, struct device *, void *); 126 static void rtk_pci_powerhook(int, void *); 127 128 CFATTACH_DECL(rtk_pci, sizeof(struct rtk_pci_softc), 129 rtk_pci_match, rtk_pci_attach, NULL, NULL); 130 131 static const struct rtk_type * 132 rtk_pci_lookup(const struct pci_attach_args *pa) 133 { 134 const struct rtk_type *t; 135 136 for (t = rtk_pci_devs; t->rtk_name != NULL; t++) { 137 if (PCI_VENDOR(pa->pa_id) == t->rtk_vid && 138 PCI_PRODUCT(pa->pa_id) == t->rtk_did) { 139 return (t); 140 } 141 } 142 return (NULL); 143 } 144 145 static int 146 rtk_pci_match(struct device *parent, struct cfdata *match, void *aux) 147 { 148 struct pci_attach_args *pa = aux; 149 150 if (rtk_pci_lookup(pa) != NULL) 151 return (1); 152 153 return (0); 154 } 155 156 /* 157 * Attach the interface. Allocate softc structures, do ifmedia 158 * setup and ethernet/BPF attach. 159 */ 160 static void 161 rtk_pci_attach(struct device *parent, struct device *self, void *aux) 162 { 163 struct rtk_pci_softc *psc = (struct rtk_pci_softc *)self; 164 struct rtk_softc *sc = &psc->sc_rtk; 165 pcireg_t command; 166 struct pci_attach_args *pa = aux; 167 pci_chipset_tag_t pc = pa->pa_pc; 168 pci_intr_handle_t ih; 169 const char *intrstr = NULL; 170 const struct rtk_type *t; 171 int pmreg; 172 173 psc->sc_pc = pa->pa_pc; 174 psc->sc_pcitag = pa->pa_tag; 175 176 t = rtk_pci_lookup(pa); 177 if (t == NULL) { 178 printf("\n"); 179 panic("rtk_pci_attach: impossible"); 180 } 181 printf(": %s\n", t->rtk_name); 182 183 /* 184 * Handle power management nonsense. 185 */ 186 187 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { 188 command = pci_conf_read(pc, pa->pa_tag, pmreg + 4); 189 if (command & RTK_PSTATE_MASK) { 190 pcireg_t iobase, membase, irq; 191 192 /* Save important PCI config data. */ 193 iobase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOIO); 194 membase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOMEM); 195 irq = pci_conf_read(pc, pa->pa_tag, PCI_INTERRUPT_REG); 196 197 /* Reset the power state. */ 198 printf("%s: chip is in D%d power mode " 199 "-- setting to D0\n", sc->sc_dev.dv_xname, 200 command & RTK_PSTATE_MASK); 201 command &= 0xFFFFFFFC; 202 pci_conf_write(pc, pa->pa_tag, pmreg + 4, command); 203 204 /* Restore PCI config data. */ 205 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOIO, iobase); 206 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOMEM, membase); 207 pci_conf_write(pc, pa->pa_tag, PCI_INTERRUPT_REG, irq); 208 } 209 } 210 211 /* 212 * Map control/status registers. 213 */ 214 #ifdef RTK_USEIOSPACE 215 if (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 216 &sc->rtk_btag, &sc->rtk_bhandle, NULL, NULL)) { 217 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 218 return; 219 } 220 #else 221 if (pci_mapreg_map(pa, RTK_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 222 &sc->rtk_btag, &sc->rtk_bhandle, NULL, NULL)) { 223 printf("%s: can't map mem space\n", sc->sc_dev.dv_xname); 224 return; 225 } 226 #endif 227 228 /* Allocate interrupt */ 229 if (pci_intr_map(pa, &ih)) { 230 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 231 return; 232 } 233 intrstr = pci_intr_string(pc, ih); 234 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, rtk_intr, sc); 235 if (psc->sc_ih == NULL) { 236 printf("%s: couldn't establish interrupt", 237 sc->sc_dev.dv_xname); 238 if (intrstr != NULL) 239 printf(" at %s", intrstr); 240 printf("\n"); 241 return; 242 } 243 244 sc->rtk_type = t->rtk_basetype; 245 246 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 247 248 sc->sc_dmat = pa->pa_dmat; 249 sc->sc_flags |= RTK_ENABLED; 250 251 psc->sc_powerhook = powerhook_establish(rtk_pci_powerhook, psc); 252 if (psc->sc_powerhook == NULL) 253 printf("%s: WARNING: unable to establish pci power hook\n", 254 sc->sc_dev.dv_xname); 255 256 rtk_attach(sc); 257 } 258 259 static void 260 rtk_pci_powerhook(int why, void *arg) 261 { 262 struct rtk_pci_softc *sc = (struct rtk_pci_softc *)arg; 263 int s; 264 265 s = splnet(); 266 switch (why) { 267 case PWR_SUSPEND: 268 case PWR_STANDBY: 269 pci_conf_capture(sc->sc_pc, sc->sc_pcitag, &sc->sc_pciconf); 270 break; 271 case PWR_RESUME: 272 pci_conf_restore(sc->sc_pc, sc->sc_pcitag, &sc->sc_pciconf); 273 break; 274 case PWR_SOFTSUSPEND: 275 case PWR_SOFTSTANDBY: 276 case PWR_SOFTRESUME: 277 break; 278 } 279 splx(s); 280 } 281
Indexes created Sun Oct 12 09:09:55 GMT 2025