1 /* $OpenBSD: if_rl_cardbus.c,v 1.30 2015/11/24 17:11:39 mpi Exp $ */ 2 /* $NetBSD: if_rl_cardbus.c,v 1.3.8.3 2001/11/14 19:14:02 nathanw Exp $ */ 3 4 /* 5 * Copyright (c) 2000 Masanori Kanaoka 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* 32 * if_rl_cardbus.c: 33 * Cardbus specific routines for Realtek 8139 ethernet adapter. 34 * Tested for 35 * - elecom-Laneed LD-10/100CBA (Accton MPX5030) 36 * - MELCO LPC3-TX-CB (Realtek 8139) 37 */ 38 39 #include "bpfilter.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/mbuf.h> 44 #include <sys/socket.h> 45 #include <sys/ioctl.h> 46 #include <sys/errno.h> 47 #include <sys/malloc.h> 48 #include <sys/kernel.h> 49 #include <sys/timeout.h> 50 #include <sys/device.h> 51 #include <sys/endian.h> 52 53 #include <net/if.h> 54 #include <net/if_media.h> 55 56 #if NBPFILTER > 0 57 #include <net/bpf.h> 58 #endif 59 60 #include <netinet/in.h> 61 #include <netinet/if_ether.h> 62 63 #include <machine/bus.h> 64 #include <machine/intr.h> 65 66 #include <dev/mii/miivar.h> 67 68 #include <dev/pci/pcivar.h> 69 #include <dev/pci/pcireg.h> 70 #include <dev/pci/pcidevs.h> 71 72 #include <dev/cardbus/cardbusvar.h> 73 74 /* 75 * Default to using PIO access for this driver. On SMP systems, 76 * there appear to be problems with memory mapped mode: it looks like 77 * doing too many memory mapped access back to back in rapid succession 78 * can hang the bus. I'm inclined to blame this on crummy design/construction 79 * on the part of Realtek. Memory mapped mode does appear to work on 80 * uniprocessor systems though. 81 */ 82 #define RL_USEIOSPACE 83 84 #include <dev/ic/rtl81x9reg.h> 85 86 /* 87 * Various supported device vendors/types and their names. 88 */ 89 const struct pci_matchid rl_cardbus_devices[] = { 90 { PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_FE2000VX }, 91 { PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_5030 }, 92 { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_2CB_TXD }, 93 { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_CB_TXD }, 94 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DFE690TXD }, 95 { PCI_VENDOR_PLANEX, PCI_PRODUCT_PLANEX_FNW_3603_TX }, 96 { PCI_VENDOR_PLANEX, PCI_PRODUCT_PLANEX_FNW_3800_TX }, 97 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8138 }, 98 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139 }, 99 }; 100 101 struct rl_cardbus_softc { 102 struct rl_softc sc_rl; /* real rtk softc */ 103 104 /* CardBus-specific goo. */ 105 void *sc_ih; 106 cardbus_devfunc_t sc_ct; 107 pci_chipset_tag_t sc_pc; 108 pcitag_t sc_tag; 109 int sc_csr; 110 int sc_cben; 111 int sc_bar_reg; 112 pcireg_t sc_bar_val; 113 bus_size_t sc_mapsize; 114 int sc_intrline; 115 }; 116 117 static int rl_cardbus_match(struct device *, void *, void *); 118 static void rl_cardbus_attach(struct device *, struct device *, void *); 119 static int rl_cardbus_detach(struct device *, int); 120 void rl_cardbus_setup(struct rl_cardbus_softc *); 121 122 struct cfattach rl_cardbus_ca = { 123 sizeof(struct rl_cardbus_softc), rl_cardbus_match, rl_cardbus_attach, 124 rl_cardbus_detach 125 }; 126 127 int 128 rl_cardbus_match(struct device *parent, void *match, void *aux) 129 { 130 return (cardbus_matchbyid((struct cardbus_attach_args *)aux, 131 rl_cardbus_devices, nitems(rl_cardbus_devices))); 132 } 133 134 135 void 136 rl_cardbus_attach(struct device *parent, struct device *self, void *aux) 137 { 138 struct rl_cardbus_softc *csc = 139 (struct rl_cardbus_softc *)self; 140 struct rl_softc *sc = &csc->sc_rl; 141 struct cardbus_attach_args *ca = aux; 142 struct cardbus_softc *psc = 143 (struct cardbus_softc *)sc->sc_dev.dv_parent; 144 cardbus_chipset_tag_t cc = psc->sc_cc; 145 cardbus_function_tag_t cf = psc->sc_cf; 146 cardbus_devfunc_t ct = ca->ca_ct; 147 bus_addr_t adr; 148 149 sc->sc_dmat = ca->ca_dmat; 150 csc->sc_ct = ct; 151 csc->sc_tag = ca->ca_tag; 152 csc->sc_intrline = ca->ca_intrline; 153 csc->sc_pc = ca->ca_pc; 154 155 /* 156 * Map control/status registers. 157 */ 158 csc->sc_csr = PCI_COMMAND_MASTER_ENABLE; 159 #ifdef RL_USEIOSPACE 160 if (Cardbus_mapreg_map(ct, RL_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 161 &sc->rl_btag, &sc->rl_bhandle, &adr, &csc->sc_mapsize) == 0) { 162 csc->sc_cben = CARDBUS_IO_ENABLE; 163 csc->sc_csr |= PCI_COMMAND_IO_ENABLE; 164 csc->sc_bar_reg = RL_PCI_LOIO; 165 csc->sc_bar_val = adr | PCI_MAPREG_TYPE_IO; 166 } 167 #else 168 if (Cardbus_mapreg_map(ct, RL_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 169 &sc->rl_btag, &sc->rl_bhandle, &adr, &csc->sc_mapsize) == 0) { 170 csc->sc_cben = CARDBUS_MEM_ENABLE; 171 csc->sc_csr |= PCI_COMMAND_MEM_ENABLE; 172 csc->sc_bar_reg = RL_PCI_LOMEM; 173 csc->sc_bar_val = adr | PCI_MAPREG_TYPE_MEM; 174 } 175 #endif 176 else { 177 printf("%s: unable to map deviceregisters\n", 178 sc->sc_dev.dv_xname); 179 return; 180 } 181 182 Cardbus_function_enable(ct); 183 184 rl_cardbus_setup(csc); 185 186 /* 187 * Map and establish the interrupt. 188 */ 189 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET, 190 rl_intr, sc, sc->sc_dev.dv_xname); 191 if (csc->sc_ih == NULL) { 192 printf(": couldn't establish interrupt\n"); 193 Cardbus_function_disable(csc->sc_ct); 194 return; 195 } 196 printf(": irq %d", csc->sc_intrline); 197 198 sc->rl_type = RL_8139; 199 200 rl_attach(sc); 201 } 202 203 int 204 rl_cardbus_detach(struct device *self, int flags) 205 { 206 struct rl_cardbus_softc *csc = (void *) self; 207 struct rl_softc *sc = &csc->sc_rl; 208 struct cardbus_devfunc *ct = csc->sc_ct; 209 int rv; 210 211 #ifdef DIAGNOSTIC 212 if (ct == NULL) 213 panic("%s: data structure lacks", sc->sc_dev.dv_xname); 214 #endif 215 rv = rl_detach(sc); 216 if (rv) 217 return (rv); 218 /* 219 * Unhook the interrupt handler. 220 */ 221 if (csc->sc_ih != NULL) 222 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih); 223 224 /* 225 * Release bus space and close window. 226 */ 227 if (csc->sc_bar_reg != 0) 228 Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, 229 sc->rl_btag, sc->rl_bhandle, csc->sc_mapsize); 230 231 return (0); 232 } 233 234 void 235 rl_cardbus_setup(struct rl_cardbus_softc *csc) 236 { 237 struct rl_softc *sc = &csc->sc_rl; 238 cardbus_devfunc_t ct = csc->sc_ct; 239 cardbus_chipset_tag_t cc = ct->ct_cc; 240 pci_chipset_tag_t pc = csc->sc_pc; 241 pcireg_t reg, command; 242 int pmreg; 243 244 /* 245 * Handle power management nonsense. 246 */ 247 if (pci_get_capability(pc, csc->sc_tag, 248 PCI_CAP_PWRMGMT, &pmreg, 0)) { 249 command = pci_conf_read(pc, csc->sc_tag, pmreg + 4); 250 if (command & RL_PSTATE_MASK) { 251 pcireg_t iobase, membase, irq; 252 253 /* Save important PCI config data. */ 254 iobase = pci_conf_read(pc, csc->sc_tag, 255 RL_PCI_LOIO); 256 membase = pci_conf_read(pc, csc->sc_tag, 257 RL_PCI_LOMEM); 258 irq = pci_conf_read(pc, csc->sc_tag, 259 PCI_PRODUCT_DELTA_8139); 260 261 /* Reset the power state. */ 262 printf("%s: chip is in D%d power mode " 263 "-- setting to D0\n", sc->sc_dev.dv_xname, 264 command & RL_PSTATE_MASK); 265 command &= 0xFFFFFFFC; 266 pci_conf_write(pc, csc->sc_tag, 267 pmreg + 4, command); 268 269 /* Restore PCI config data. */ 270 pci_conf_write(pc, csc->sc_tag, 271 RL_PCI_LOIO, iobase); 272 pci_conf_write(pc, csc->sc_tag, 273 RL_PCI_LOMEM, membase); 274 pci_conf_write(pc, csc->sc_tag, 275 PCI_PRODUCT_DELTA_8139, irq); 276 } 277 } 278 279 /* Make sure the right access type is on the CardBus bridge. */ 280 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); 281 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 282 283 /* Program the BAR */ 284 pci_conf_write(pc, csc->sc_tag, 285 csc->sc_bar_reg, csc->sc_bar_val); 286 287 /* Enable the appropriate bits in the CARDBUS CSR. */ 288 reg = pci_conf_read(pc, csc->sc_tag, 289 PCI_COMMAND_STATUS_REG); 290 reg &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE); 291 reg |= csc->sc_csr; 292 pci_conf_write(pc, csc->sc_tag, 293 PCI_COMMAND_STATUS_REG, reg); 294 295 /* 296 * Make sure the latency timer is set to some reasonable 297 * value. 298 */ 299 reg = pci_conf_read(pc, csc->sc_tag, PCI_BHLC_REG); 300 if (PCI_LATTIMER(reg) < 0x20) { 301 reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT); 302 reg |= (0x20 << PCI_LATTIMER_SHIFT); 303 pci_conf_write(pc, csc->sc_tag, PCI_BHLC_REG, reg); 304 } 305 } 306 307