if_rtk_pci.c revision 1.33.2.2
1 /* $NetBSD: if_rtk_pci.c,v 1.33.2.2 2007/12/27 00:45:17 mjf 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 1.33.2.2 2007/12/27 00:45:17 mjf 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 <sys/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 #include <dev/ic/rtl81x9reg.h> 78 #include <dev/ic/rtl81x9var.h> 79 80 struct rtk_pci_softc { 81 struct rtk_softc sc_rtk; /* real rtk softc */ 82 83 /* PCI-specific goo.*/ 84 void *sc_ih; 85 }; 86 87 static const struct rtk_type rtk_pci_devs[] = { 88 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8129, 89 RTK_8129, "Realtek 8129 10/100BaseTX" }, 90 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, 91 RTK_8139, "Realtek 8139 10/100BaseTX" }, 92 { PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_MPX5030, 93 RTK_8139, "Accton MPX 5030/5038 10/100BaseTX" }, 94 { PCI_VENDOR_DELTA, PCI_PRODUCT_DELTA_8139, 95 RTK_8139, "Delta Electronics 8139 10/100BaseTX" }, 96 { PCI_VENDOR_ADDTRON, PCI_PRODUCT_ADDTRON_8139, 97 RTK_8139, "Addtron Technology 8139 10/100BaseTX" }, 98 { PCI_VENDOR_SEGA, PCI_PRODUCT_SEGA_BROADBAND, 99 RTK_8139, "SEGA Broadband Adapter" }, 100 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DFE530TXPLUS, 101 RTK_8139, "D-Link Systems DFE 530TX+" }, 102 { PCI_VENDOR_NORTEL, PCI_PRODUCT_NORTEL_BAYSTACK_21, 103 RTK_8139, "Baystack 21 (MPX EN5038) 10/100BaseTX" }, 104 { 0, 0, 0, NULL } 105 }; 106 107 static int rtk_pci_match(device_t, struct cfdata *, void *); 108 static void rtk_pci_attach(device_t, device_t, void *); 109 110 CFATTACH_DECL(rtk_pci, sizeof(struct rtk_pci_softc), 111 rtk_pci_match, rtk_pci_attach, NULL, NULL); 112 113 static const struct rtk_type * 114 rtk_pci_lookup(const struct pci_attach_args *pa) 115 { 116 const struct rtk_type *t; 117 118 for (t = rtk_pci_devs; t->rtk_name != NULL; t++) { 119 if (PCI_VENDOR(pa->pa_id) == t->rtk_vid && 120 PCI_PRODUCT(pa->pa_id) == t->rtk_did) { 121 return (t); 122 } 123 } 124 return (NULL); 125 } 126 127 static int 128 rtk_pci_match(device_t parent, struct cfdata *match, 129 void *aux) 130 { 131 struct pci_attach_args *pa = aux; 132 133 if (rtk_pci_lookup(pa) != NULL) 134 return (1); 135 136 return (0); 137 } 138 139 /* 140 * Attach the interface. Allocate softc structures, do ifmedia 141 * setup and ethernet/BPF attach. 142 */ 143 static void 144 rtk_pci_attach(device_t parent, device_t self, void *aux) 145 { 146 struct rtk_pci_softc *psc = device_private(self); 147 struct rtk_softc *sc = &psc->sc_rtk; 148 struct pci_attach_args *pa = aux; 149 pci_chipset_tag_t pc = pa->pa_pc; 150 pci_intr_handle_t ih; 151 bus_space_tag_t iot, memt; 152 bus_space_handle_t ioh, memh; 153 const char *intrstr = NULL; 154 const struct rtk_type *t; 155 int ioh_valid, memh_valid; 156 157 t = rtk_pci_lookup(pa); 158 if (t == NULL) { 159 printf("\n"); 160 panic("rtk_pci_attach: impossible"); 161 } 162 163 aprint_naive("\n"); 164 aprint_normal(": %s (rev. 0x%02x)\n", 165 t->rtk_name, PCI_REVISION(pa->pa_class)); 166 167 /* 168 * Map control/status registers. 169 * 170 * The original FreeBSD's driver has the following comment: 171 * 172 * Default to using PIO access for this driver. On SMP systems, 173 * there appear to be problems with memory mapped mode: 174 * it looks like doing too many memory mapped access 175 * back to back in rapid succession can hang the bus. 176 * I'm inclined to blame this on crummy design/construction 177 * on the part of Realtek. Memory mapped mode does appear to 178 * work on uniprocessor systems though. 179 * 180 * On NetBSD, some port doesn't support PCI I/O space properly, 181 * so we try to map both and prefer I/O space to mem space. 182 */ 183 ioh_valid = (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 184 &iot, &ioh, NULL, NULL) == 0); 185 memh_valid = (pci_mapreg_map(pa, RTK_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 186 &memt, &memh, NULL, NULL) == 0); 187 if (ioh_valid) { 188 sc->rtk_btag = iot; 189 sc->rtk_bhandle = ioh; 190 } else if (memh_valid) { 191 sc->rtk_btag = memt; 192 sc->rtk_bhandle = memh; 193 } else { 194 aprint_error_dev(self, "can't map registers\n"); 195 return; 196 } 197 198 /* Allocate interrupt */ 199 if (pci_intr_map(pa, &ih)) { 200 aprint_error_dev(self, "couldn't map interrupt\n"); 201 return; 202 } 203 intrstr = pci_intr_string(pc, ih); 204 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, rtk_intr, sc); 205 if (psc->sc_ih == NULL) { 206 aprint_error_dev(self, "couldn't establish interrupt"); 207 if (intrstr != NULL) 208 aprint_normal(" at %s", intrstr); 209 aprint_normal("\n"); 210 return; 211 } 212 213 if (t->rtk_basetype == RTK_8129) 214 sc->sc_quirk |= RTKQ_8129; 215 216 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 217 218 sc->sc_dmat = pa->pa_dmat; 219 sc->sc_flags |= RTK_ENABLED; 220 221 if (!pmf_device_register(self, NULL, NULL)) 222 aprint_error_dev(self, "couldn't establish power handler\n"); 223 else 224 pmf_class_network_register(self, &sc->ethercom.ec_if); 225 226 rtk_attach(sc); 227 } 228
Indexes created Sun Oct 12 09:09:55 GMT 2025