1 /* $NetBSD: if_rtk_pci.c,v 1.15 2002/10/02 16:51:28 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1998 5 * Bill Paul <wpaul@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@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 1.15 2002/10/02 16:51:28 thorpej 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 #ifndef dreamcast /* XXX */ 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 }; 100 101 static const struct rtk_type rtk_pci_devs[] = { 102 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8129, 103 "RealTek 8129 10/100BaseTX", 104 RTK_8129 }, 105 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, 106 "RealTek 8139 10/100BaseTX", 107 RTK_8139 }, 108 { PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_MPX5030, 109 "Accton MPX 5030/5038 10/100BaseTX", 110 RTK_8139 }, 111 { PCI_VENDOR_DELTA, PCI_PRODUCT_DELTA_8139, 112 "Delta Electronics 8139 10/100BaseTX", 113 RTK_8139 }, 114 { PCI_VENDOR_ADDTRON, PCI_PRODUCT_ADDTRON_8139, 115 "Addtron Technology 8139 10/100BaseTX", 116 RTK_8139 }, 117 { PCI_VENDOR_SEGA, PCI_PRODUCT_SEGA_BROADBAND, 118 "SEGA Broadband Adapter", 119 RTK_8139 }, 120 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DFE530TXPLUS, 121 "D-Link Systems DFE 530TX+", 122 RTK_8139 }, 123 { 0, 0, NULL, 0 } 124 }; 125 126 const struct rtk_type *rtk_pci_lookup __P((const struct pci_attach_args *)); 127 128 int rtk_pci_match __P((struct device *, struct cfdata *, void *)); 129 void rtk_pci_attach __P((struct device *, struct device *, void *)); 130 131 CFATTACH_DECL(rtk_pci, sizeof(struct rtk_pci_softc), 132 rtk_pci_match, rtk_pci_attach, NULL, NULL); 133 134 const struct rtk_type * 135 rtk_pci_lookup(pa) 136 const struct pci_attach_args *pa; 137 { 138 const struct rtk_type *t; 139 140 for (t = rtk_pci_devs; t->rtk_name != NULL; t++) { 141 if (PCI_VENDOR(pa->pa_id) == t->rtk_vid && 142 PCI_PRODUCT(pa->pa_id) == t->rtk_did) { 143 return (t); 144 } 145 } 146 return (NULL); 147 } 148 149 int 150 rtk_pci_match(parent, match, aux) 151 struct device *parent; 152 struct cfdata *match; 153 void *aux; 154 { 155 struct pci_attach_args *pa = aux; 156 157 if (rtk_pci_lookup(pa) != NULL) 158 return (1); 159 160 return (0); 161 } 162 163 /* 164 * Attach the interface. Allocate softc structures, do ifmedia 165 * setup and ethernet/BPF attach. 166 */ 167 void 168 rtk_pci_attach(parent, self, aux) 169 struct device *parent, *self; 170 void *aux; 171 { 172 struct rtk_pci_softc *psc = (struct rtk_pci_softc *)self; 173 struct rtk_softc *sc = &psc->sc_rtk; 174 pcireg_t command; 175 struct pci_attach_args *pa = aux; 176 pci_chipset_tag_t pc = pa->pa_pc; 177 pci_intr_handle_t ih; 178 const char *intrstr = NULL; 179 const struct rtk_type *t; 180 int pmreg; 181 182 psc->sc_pc = pa->pa_pc; 183 psc->sc_pcitag = pa->pa_tag; 184 185 t = rtk_pci_lookup(pa); 186 if (t == NULL) { 187 printf("\n"); 188 panic("rtk_pci_attach: impossible"); 189 } 190 printf(": %s\n", t->rtk_name); 191 192 /* 193 * Handle power management nonsense. 194 */ 195 196 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { 197 command = pci_conf_read(pc, pa->pa_tag, pmreg + 4); 198 if (command & RTK_PSTATE_MASK) { 199 pcireg_t iobase, membase, irq; 200 201 /* Save important PCI config data. */ 202 iobase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOIO); 203 membase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOMEM); 204 irq = pci_conf_read(pc, pa->pa_tag, 205 PCI_PRODUCT_DELTA_8139); 206 207 /* Reset the power state. */ 208 printf("%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 command &= 0xFFFFFFFC; 212 pci_conf_write(pc, pa->pa_tag, pmreg + 4, command); 213 214 /* Restore PCI config data. */ 215 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOIO, iobase); 216 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOMEM, membase); 217 pci_conf_write(pc, pa->pa_tag, 218 PCI_PRODUCT_DELTA_8139, irq); 219 } 220 } 221 222 /* 223 * Map control/status registers. 224 */ 225 #ifdef RTK_USEIOSPACE 226 if (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 227 &sc->rtk_btag, &sc->rtk_bhandle, NULL, NULL)) { 228 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 229 return; 230 } 231 #else 232 if (pci_mapreg_map(pa, RTK_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 233 &sc->rtk_btag, &sc->rtk_bhandle, NULL, NULL)) { 234 printf("%s: can't map mem space\n", sc->sc_dev.dv_xname); 235 return; 236 } 237 #endif 238 239 /* Allocate interrupt */ 240 if (pci_intr_map(pa, &ih)) { 241 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 242 return; 243 } 244 intrstr = pci_intr_string(pc, ih); 245 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, rtk_intr, sc); 246 if (psc->sc_ih == NULL) { 247 printf("%s: couldn't establish interrupt", 248 sc->sc_dev.dv_xname); 249 if (intrstr != NULL) 250 printf(" at %s", intrstr); 251 printf("\n"); 252 return; 253 } 254 255 sc->rtk_type = t->rtk_type; 256 257 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 258 259 sc->sc_dmat = pa->pa_dmat; 260 261 rtk_attach(sc); 262 } 263