if_rtk_pci.c revision 1.32.8.1
1 /* $NetBSD: if_rtk_pci.c,v 1.32.8.1 2007/10/05 00:37:20 joerg 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 1.32.8.1 2007/10/05 00:37:20 joerg 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 #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(struct device *, struct cfdata *, void *); 108 static void rtk_pci_attach(struct device *, struct device *, 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(struct device *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(struct device *parent, struct device *self, void *aux) 145 { 146 struct rtk_pci_softc *psc = (struct rtk_pci_softc *)self; 147 struct rtk_softc *sc = &psc->sc_rtk; 148 pcireg_t command; 149 struct pci_attach_args *pa = aux; 150 pci_chipset_tag_t pc = pa->pa_pc; 151 pci_intr_handle_t ih; 152 bus_space_tag_t iot, memt; 153 bus_space_handle_t ioh, memh; 154 const char *intrstr = NULL; 155 const struct rtk_type *t; 156 int pmreg; 157 int ioh_valid, memh_valid; 158 pnp_status_t pnp_status; 159 160 t = rtk_pci_lookup(pa); 161 if (t == NULL) { 162 printf("\n"); 163 panic("rtk_pci_attach: impossible"); 164 } 165 printf(": %s (rev. 0x%02x)\n", t->rtk_name, PCI_REVISION(pa->pa_class)); 166 167 /* 168 * Handle power management nonsense. 169 */ 170 171 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { 172 command = pci_conf_read(pc, pa->pa_tag, pmreg + PCI_PMCSR); 173 if (command & PCI_PMCSR_STATE_MASK) { 174 pcireg_t iobase, membase, irq; 175 176 /* Save important PCI config data. */ 177 iobase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOIO); 178 membase = pci_conf_read(pc, pa->pa_tag, RTK_PCI_LOMEM); 179 irq = pci_conf_read(pc, pa->pa_tag, PCI_INTERRUPT_REG); 180 181 /* Reset the power state. */ 182 printf("%s: chip is in D%d power mode " 183 "-- setting to D0\n", sc->sc_dev.dv_xname, 184 command & PCI_PMCSR_STATE_MASK); 185 command &= ~PCI_PMCSR_STATE_MASK; 186 pci_conf_write(pc, pa->pa_tag, 187 pmreg + PCI_PMCSR, command); 188 189 /* Restore PCI config data. */ 190 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOIO, iobase); 191 pci_conf_write(pc, pa->pa_tag, RTK_PCI_LOMEM, membase); 192 pci_conf_write(pc, pa->pa_tag, PCI_INTERRUPT_REG, irq); 193 } 194 } 195 196 /* 197 * Map control/status registers. 198 * 199 * The original FreeBSD's driver has the following comment: 200 * 201 * Default to using PIO access for this driver. On SMP systems, 202 * there appear to be problems with memory mapped mode: 203 * it looks like doing too many memory mapped access 204 * back to back in rapid succession can hang the bus. 205 * I'm inclined to blame this on crummy design/construction 206 * on the part of Realtek. Memory mapped mode does appear to 207 * work on uniprocessor systems though. 208 * 209 * On NetBSD, some port doesn't support PCI I/O space properly, 210 * so we try to map both and prefer I/O space to mem space. 211 */ 212 ioh_valid = (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 213 &iot, &ioh, NULL, NULL) == 0); 214 memh_valid = (pci_mapreg_map(pa, RTK_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 215 &memt, &memh, NULL, NULL) == 0); 216 if (ioh_valid) { 217 sc->rtk_btag = iot; 218 sc->rtk_bhandle = ioh; 219 } else if (memh_valid) { 220 sc->rtk_btag = memt; 221 sc->rtk_bhandle = memh; 222 } else { 223 aprint_error("%s: can't map registers\n", sc->sc_dev.dv_xname); 224 return; 225 } 226 227 /* Allocate interrupt */ 228 if (pci_intr_map(pa, &ih)) { 229 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 230 return; 231 } 232 intrstr = pci_intr_string(pc, ih); 233 psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, rtk_intr, sc); 234 if (psc->sc_ih == NULL) { 235 printf("%s: couldn't establish interrupt", 236 sc->sc_dev.dv_xname); 237 if (intrstr != NULL) 238 printf(" at %s", intrstr); 239 printf("\n"); 240 return; 241 } 242 243 if (t->rtk_basetype == RTK_8129) 244 sc->sc_quirk |= RTKQ_8129; 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 pnp_status = pci_net_generic_power_register(self, 252 pa->pa_pc, pa->pa_tag, &sc->ethercom.ec_if, NULL, NULL); 253 if (pnp_status != PNP_STATUS_SUCCESS) { 254 aprint_error_dev(self, "couldn't establish power handler\n"); 255 } 256 257 rtk_attach(sc); 258 } 259
Indexes created Sun Oct 12 09:09:55 GMT 2025