if_rtk_pci.c revision 1.18.2.1
1 /* $NetBSD: if_rtk_pci.c,v 1.18.2.1 2004/08/03 10:49:08 skrll 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 1.18.2.1 2004/08/03 10:49:08 skrll 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 RTK_8129, "Realtek 8129 10/100BaseTX" }, 104 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, 105 RTK_8139, "Realtek 8139 10/100BaseTX" }, 106 { PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_MPX5030, 107 RTK_8139, "Accton MPX 5030/5038 10/100BaseTX" }, 108 { PCI_VENDOR_DELTA, PCI_PRODUCT_DELTA_8139, 109 RTK_8139, "Delta Electronics 8139 10/100BaseTX" }, 110 { PCI_VENDOR_ADDTRON, PCI_PRODUCT_ADDTRON_8139, 111 RTK_8139, "Addtron Technology 8139 10/100BaseTX" }, 112 { PCI_VENDOR_SEGA, PCI_PRODUCT_SEGA_BROADBAND, 113 RTK_8139, "SEGA Broadband Adapter" }, 114 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DFE530TXPLUS, 115 RTK_8139, "D-Link Systems DFE 530TX+" }, 116 { 0, 0, 0, NULL } 117 }; 118 119 const struct rtk_type *rtk_pci_lookup __P((const struct pci_attach_args *)); 120 121 int rtk_pci_match __P((struct device *, struct cfdata *, void *)); 122 void rtk_pci_attach __P((struct device *, struct device *, void *)); 123 124 CFATTACH_DECL(rtk_pci, sizeof(struct rtk_pci_softc), 125 rtk_pci_match, rtk_pci_attach, NULL, NULL); 126 127 const struct rtk_type * 128 rtk_pci_lookup(pa) 129 const struct pci_attach_args *pa; 130 { 131 const struct rtk_type *t; 132 133 for (t = rtk_pci_devs; t->rtk_name != NULL; t++) { 134 if (PCI_VENDOR(pa->pa_id) == t->rtk_vid && 135 PCI_PRODUCT(pa->pa_id) == t->rtk_did) { 136 return (t); 137 } 138 } 139 return (NULL); 140 } 141 142 int 143 rtk_pci_match(parent, match, aux) 144 struct device *parent; 145 struct cfdata *match; 146 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 void 161 rtk_pci_attach(parent, self, aux) 162 struct device *parent, *self; 163 void *aux; 164 { 165 struct rtk_pci_softc *psc = (struct rtk_pci_softc *)self; 166 struct rtk_softc *sc = &psc->sc_rtk; 167 pcireg_t command; 168 struct pci_attach_args *pa = aux; 169 pci_chipset_tag_t pc = pa->pa_pc; 170 pci_intr_handle_t ih; 171 const char *intrstr = NULL; 172 const struct rtk_type *t; 173 int pmreg; 174 175 psc->sc_pc = pa->pa_pc; 176 psc->sc_pcitag = pa->pa_tag; 177 178 t = rtk_pci_lookup(pa); 179 if (t == NULL) { 180 printf("\n"); 181 panic("rtk_pci_attach: impossible"); 182 } 183 printf(": %s\n", t->rtk_name); 184 185 /* 186 * Handle power management nonsense. 187 */ 188 189 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { 190 command = pci_conf_read(pc, pa->pa_tag, pmreg + 4); 191 if (command & RTK_PSTATE_MASK) { 192 pcireg_t iobase, membase, irq; 193 194 /* Save important PCI config data. */ 195 iobase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOIO); 196 membase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOMEM); 197 irq = pci_conf_read(pc, pa->pa_tag, PCI_INTERRUPT_REG); 198 199 /* Reset the power state. */ 200 printf("%s: chip is in D%d power mode " 201 "-- setting to D0\n", sc->sc_dev.dv_xname, 202 command & RTK_PSTATE_MASK); 203 command &= 0xFFFFFFFC; 204 pci_conf_write(pc, pa->pa_tag, pmreg + 4, command); 205 206 /* Restore PCI config data. */ 207 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOIO, iobase); 208 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOMEM, membase); 209 pci_conf_write(pc, pa->pa_tag, PCI_INTERRUPT_REG, irq); 210 } 211 } 212 213 /* 214 * Map control/status registers. 215 */ 216 #ifdef RTK_USEIOSPACE 217 if (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 218 &sc->rtk_btag, &sc->rtk_bhandle, NULL, NULL)) { 219 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 220 return; 221 } 222 #else 223 if (pci_mapreg_map(pa, RTK_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 224 &sc->rtk_btag, &sc->rtk_bhandle, NULL, NULL)) { 225 printf("%s: can't map mem space\n", sc->sc_dev.dv_xname); 226 return; 227 } 228 #endif 229 230 /* Allocate interrupt */ 231 if (pci_intr_map(pa, &ih)) { 232 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 233 return; 234 } 235 intrstr = pci_intr_string(pc, ih); 236 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, rtk_intr, sc); 237 if (psc->sc_ih == NULL) { 238 printf("%s: couldn't establish interrupt", 239 sc->sc_dev.dv_xname); 240 if (intrstr != NULL) 241 printf(" at %s", intrstr); 242 printf("\n"); 243 return; 244 } 245 246 sc->rtk_type = t->rtk_basetype; 247 248 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 249 250 sc->sc_dmat = pa->pa_dmat; 251 sc->sc_flags |= RTK_ENABLED; 252 253 rtk_attach(sc); 254 } 255
Indexes created Sun Oct 12 09:09:55 GMT 2025