1 /* $NetBSD: if_rtk_pci.c,v 1.12 2002/02/06 12:43:05 tsutsui 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 1.12 2002/02/06 12:43:05 tsutsui 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 struct cfattach rtk_pci_ca = { 132 sizeof(struct rtk_pci_softc), rtk_pci_match, rtk_pci_attach, 133 }; 134 135 const struct rtk_type * 136 rtk_pci_lookup(pa) 137 const struct pci_attach_args *pa; 138 { 139 const struct rtk_type *t; 140 141 for (t = rtk_pci_devs; t->rtk_name != NULL; t++) { 142 if (PCI_VENDOR(pa->pa_id) == t->rtk_vid && 143 PCI_PRODUCT(pa->pa_id) == t->rtk_did) { 144 return (t); 145 } 146 } 147 return (NULL); 148 } 149 150 int 151 rtk_pci_match(parent, match, aux) 152 struct device *parent; 153 struct cfdata *match; 154 void *aux; 155 { 156 struct pci_attach_args *pa = aux; 157 158 if (rtk_pci_lookup(pa) != NULL) 159 return (1); 160 161 return (0); 162 } 163 164 /* 165 * Attach the interface. Allocate softc structures, do ifmedia 166 * setup and ethernet/BPF attach. 167 */ 168 void 169 rtk_pci_attach(parent, self, aux) 170 struct device *parent, *self; 171 void *aux; 172 { 173 struct rtk_pci_softc *psc = (struct rtk_pci_softc *)self; 174 struct rtk_softc *sc = &psc->sc_rtk; 175 pcireg_t command; 176 struct pci_attach_args *pa = aux; 177 pci_chipset_tag_t pc = pa->pa_pc; 178 pci_intr_handle_t ih; 179 const char *intrstr = NULL; 180 const struct rtk_type *t; 181 int pmreg; 182 183 psc->sc_pc = pa->pa_pc; 184 psc->sc_pcitag = pa->pa_tag; 185 186 t = rtk_pci_lookup(pa); 187 if (t == NULL) { 188 printf("\n"); 189 panic("rtk_pci_attach: impossible"); 190 } 191 printf(": %s\n", t->rtk_name); 192 193 /* 194 * Handle power management nonsense. 195 */ 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 + 4); 199 if (command & RTK_PSTATE_MASK) { 200 pcireg_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, 206 PCI_PRODUCT_DELTA_8139); 207 208 /* Reset the power state. */ 209 printf("%s: chip is is in D%d power mode " 210 "-- setting to D0\n", sc->sc_dev.dv_xname, 211 command & RTK_PSTATE_MASK); 212 command &= 0xFFFFFFFC; 213 pci_conf_write(pc, pa->pa_tag, pmreg + 4, command); 214 215 /* Restore PCI config data. */ 216 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOIO, iobase); 217 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOMEM, membase); 218 pci_conf_write(pc, pa->pa_tag, 219 PCI_PRODUCT_DELTA_8139, irq); 220 } 221 } 222 223 /* 224 * Map control/status registers. 225 */ 226 #ifdef RTK_USEIOSPACE 227 if (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 228 &sc->rtk_btag, &sc->rtk_bhandle, NULL, NULL)) { 229 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 230 return; 231 } 232 #else 233 if (pci_mapreg_map(pa, RTK_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 234 &sc->rtk_btag, &sc->rtk_bhandle, NULL, NULL)) { 235 printf("%s: can't map mem space\n", sc->sc_dev.dv_xname); 236 return; 237 } 238 #endif 239 240 /* Allocate interrupt */ 241 if (pci_intr_map(pa, &ih)) { 242 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 243 return; 244 } 245 intrstr = pci_intr_string(pc, ih); 246 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, rtk_intr, sc); 247 if (psc->sc_ih == NULL) { 248 printf("%s: couldn't establish interrupt", 249 sc->sc_dev.dv_xname); 250 if (intrstr != NULL) 251 printf(" at %s", intrstr); 252 printf("\n"); 253 return; 254 } 255 256 sc->rtk_type = t->rtk_type; 257 258 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 259 260 sc->sc_dmat = pa->pa_dmat; 261 262 rtk_attach(sc); 263 } 264