1 /* $NetBSD: if_atw_cardbus.c,v 1.37 2022/09/25 17:33:19 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000, 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. This code was adapted for the ADMtek ADM8211 10 * by David Young. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * CardBus bus front-end for the ADMtek ADM8211 802.11 MAC/BBP driver. 36 */ 37 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: if_atw_cardbus.c,v 1.37 2022/09/25 17:33:19 thorpej Exp $"); 40 41 #include "opt_inet.h" 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/mbuf.h> 46 #include <sys/kernel.h> 47 #include <sys/socket.h> 48 #include <sys/ioctl.h> 49 #include <sys/errno.h> 50 #include <sys/device.h> 51 52 #include <machine/endian.h> 53 54 #include <net/if.h> 55 #include <net/if_dl.h> 56 #include <net/if_media.h> 57 #include <net/if_ether.h> 58 59 #include <net80211/ieee80211_netbsd.h> 60 #include <net80211/ieee80211_radiotap.h> 61 #include <net80211/ieee80211_var.h> 62 63 #ifdef INET 64 #include <netinet/in.h> 65 #include <netinet/if_inarp.h> 66 #endif 67 68 69 #include <sys/bus.h> 70 #include <sys/intr.h> 71 72 #include <dev/ic/atwreg.h> 73 #include <dev/ic/rf3000reg.h> 74 #include <dev/ic/si4136reg.h> 75 #include <dev/ic/atwvar.h> 76 77 #include <dev/pci/pcivar.h> 78 #include <dev/pci/pcireg.h> 79 #include <dev/pci/pcidevs.h> 80 81 #include <dev/cardbus/cardbusvar.h> 82 #include <dev/pci/pcidevs.h> 83 84 /* 85 * PCI configuration space registers used by the ADM8211. 86 */ 87 #define ATW_PCI_IOBA PCI_BAR(0) /* i/o mapped base */ 88 #define ATW_PCI_MMBA PCI_BAR(1) /* memory mapped base */ 89 90 struct atw_cardbus_softc { 91 struct atw_softc sc_atw; 92 93 /* CardBus-specific goo. */ 94 void *sc_ih; /* interrupt handle */ 95 cardbus_devfunc_t sc_ct; /* our CardBus devfuncs */ 96 pcitag_t sc_tag; /* our CardBus tag */ 97 pcireg_t sc_csr; /* CSR bits */ 98 bus_size_t sc_mapsize; /* the size of mapped bus space 99 * region 100 */ 101 102 int sc_bar_reg; /* which BAR to use */ 103 pcireg_t sc_bar_val; /* value of the BAR */ 104 }; 105 106 static int atw_cardbus_match(device_t, cfdata_t, void *); 107 static void atw_cardbus_attach(device_t, device_t, void *); 108 static int atw_cardbus_detach(device_t, int); 109 110 CFATTACH_DECL3_NEW(atw_cardbus, sizeof(struct atw_cardbus_softc), 111 atw_cardbus_match, atw_cardbus_attach, atw_cardbus_detach, atw_activate, 112 NULL, NULL, DVF_DETACH_SHUTDOWN); 113 114 static void atw_cardbus_setup(struct atw_cardbus_softc *); 115 116 static bool atw_cardbus_suspend(device_t, const pmf_qual_t *); 117 static bool atw_cardbus_resume(device_t, const pmf_qual_t *); 118 119 static const struct atw_cardbus_product *atw_cardbus_lookup 120 (const struct cardbus_attach_args *); 121 122 static const struct atw_cardbus_product { 123 u_int32_t acp_vendor; /* PCI vendor ID */ 124 u_int32_t acp_product; /* PCI product ID */ 125 const char *acp_product_name; 126 } atw_cardbus_products[] = { 127 { PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_ADM8211, 128 "ADMtek ADM8211 802.11 MAC/BBP" }, 129 130 { 0, 0, NULL }, 131 }; 132 133 static const struct atw_cardbus_product * 134 atw_cardbus_lookup(const struct cardbus_attach_args *ca) 135 { 136 const struct atw_cardbus_product *acp; 137 138 for (acp = atw_cardbus_products; acp->acp_product_name != NULL; acp++) { 139 if (PCI_VENDOR(ca->ca_id) == acp->acp_vendor && 140 PCI_PRODUCT(ca->ca_id) == acp->acp_product) 141 return acp; 142 } 143 return NULL; 144 } 145 146 static int 147 atw_cardbus_match(device_t parent, cfdata_t match, void *aux) 148 { 149 struct cardbus_attach_args *ca = aux; 150 151 if (atw_cardbus_lookup(ca) != NULL) 152 return 1; 153 154 return 0; 155 } 156 157 static void 158 atw_cardbus_attach(device_t parent, device_t self, void *aux) 159 { 160 struct atw_cardbus_softc *csc = device_private(self); 161 struct atw_softc *sc = &csc->sc_atw; 162 struct cardbus_attach_args *ca = aux; 163 cardbus_devfunc_t ct = ca->ca_ct; 164 const struct atw_cardbus_product *acp; 165 #if 0 166 int i; 167 #define FUNCREG(__x) {#__x, (__x)} 168 struct { 169 const char *name; 170 bus_size_t ofs; 171 } funcregs[] = { 172 FUNCREG(ATW_FER), FUNCREG(ATW_FEMR), FUNCREG(ATW_FPSR), 173 FUNCREG(ATW_FFER) 174 }; 175 #undef FUNCREG 176 #endif 177 bus_addr_t adr; 178 179 sc->sc_dev = self; 180 sc->sc_dmat = ca->ca_dmat; 181 csc->sc_ct = ct; 182 csc->sc_tag = ca->ca_tag; 183 184 acp = atw_cardbus_lookup(ca); 185 if (acp == NULL) { 186 printf("\n"); 187 panic("atw_cardbus_attach: impossible"); 188 } 189 190 /* Get revision info. */ 191 sc->sc_rev = PCI_REVISION(ca->ca_class); 192 193 printf(": %s, revision %d.%d\n", acp->acp_product_name, 194 (sc->sc_rev >> 4) & 0xf, sc->sc_rev & 0xf); 195 196 #if 0 197 printf("%s: signature %08x\n", device_xname(self), 198 (rev >> 4) & 0xf, rev & 0xf, 199 Cardbus_conf_read(ct, csc->sc_tag, 0x80)); 200 #endif 201 202 /* 203 * Map the device. 204 */ 205 csc->sc_csr = PCI_COMMAND_MASTER_ENABLE | 206 PCI_COMMAND_PARITY_ENABLE | 207 PCI_COMMAND_SERR_ENABLE; 208 if (Cardbus_mapreg_map(ct, ATW_PCI_MMBA, 209 PCI_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &adr, 210 &csc->sc_mapsize) == 0) { 211 #if 0 212 printf("%s: atw_cardbus_attach mapped %d bytes mem space\n", 213 device_xname(self), csc->sc_mapsize); 214 #endif 215 csc->sc_csr |= PCI_COMMAND_MEM_ENABLE; 216 csc->sc_bar_reg = ATW_PCI_MMBA; 217 csc->sc_bar_val = adr | PCI_MAPREG_TYPE_MEM; 218 } else if (Cardbus_mapreg_map(ct, ATW_PCI_IOBA, 219 PCI_MAPREG_TYPE_IO, 0, &sc->sc_st, &sc->sc_sh, &adr, 220 &csc->sc_mapsize) == 0) { 221 #if 0 222 printf("%s: atw_cardbus_attach mapped %d bytes I/O space\n", 223 device_xname(self), csc->sc_mapsize); 224 #endif 225 csc->sc_csr |= PCI_COMMAND_IO_ENABLE; 226 csc->sc_bar_reg = ATW_PCI_IOBA; 227 csc->sc_bar_val = adr | PCI_MAPREG_TYPE_IO; 228 } else { 229 aprint_error_dev(self, "unable to map device registers\n"); 230 return; 231 } 232 233 /* 234 * Bring the chip out of powersave mode and initialize the 235 * configuration registers. 236 */ 237 atw_cardbus_setup(csc); 238 239 #if 0 240 /* 241 * The CardBus cards will make it to store-and-forward mode as 242 * soon as you put them under any kind of load, so just start 243 * out there. 244 */ 245 sc->sc_txthresh = 3; /* TBD name constant */ 246 #endif 247 248 #if 0 249 for (i = 0; i < __arraycount(funcregs); i++) { 250 aprint_error_dev(sc->sc_dev, "%s %" PRIx32 "\n", 251 funcregs[i].name, ATW_READ(sc, funcregs[i].ofs)); 252 } 253 #endif 254 255 ATW_WRITE(sc, ATW_FEMR, 0); 256 ATW_WRITE(sc, ATW_FER, ATW_READ(sc, ATW_FER)); 257 258 /* 259 * Bus-independent attach. 260 */ 261 atw_attach(sc); 262 263 if (pmf_device_register1(sc->sc_dev, atw_cardbus_suspend, 264 atw_cardbus_resume, atw_shutdown)) 265 pmf_class_network_register(sc->sc_dev, &sc->sc_if); 266 else 267 aprint_error_dev(sc->sc_dev, 268 "couldn't establish power handler\n"); 269 270 /* 271 * Power down the socket. 272 */ 273 pmf_device_suspend(sc->sc_dev, &sc->sc_qual); 274 } 275 276 static int 277 atw_cardbus_detach(device_t self, int flags) 278 { 279 struct atw_cardbus_softc *csc = device_private(self); 280 struct atw_softc *sc = &csc->sc_atw; 281 struct cardbus_devfunc *ct = csc->sc_ct; 282 int rv; 283 284 #if defined(DIAGNOSTIC) 285 if (ct == NULL) 286 panic("%s: data structure lacks", device_xname(self)); 287 #endif 288 289 rv = atw_detach(sc); 290 if (rv != 0) 291 return rv; 292 293 /* 294 * Unhook the interrupt handler. 295 */ 296 if (csc->sc_ih != NULL) 297 Cardbus_intr_disestablish(ct, csc->sc_ih); 298 299 /* 300 * Release bus space and close window. 301 */ 302 if (csc->sc_bar_reg != 0) 303 Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, 304 sc->sc_st, sc->sc_sh, csc->sc_mapsize); 305 306 return 0; 307 } 308 309 static bool 310 atw_cardbus_resume(device_t self, const pmf_qual_t *qual) 311 { 312 struct atw_cardbus_softc *csc = device_private(self); 313 struct atw_softc *sc = &csc->sc_atw; 314 cardbus_devfunc_t ct = csc->sc_ct; 315 316 /* 317 * Map and establish the interrupt. 318 */ 319 csc->sc_ih = Cardbus_intr_establish(ct, IPL_NET, atw_intr, sc); 320 if (csc->sc_ih == NULL) { 321 aprint_error_dev(sc->sc_dev, "unable to establish interrupt\n"); 322 return false; 323 } 324 325 return true; 326 } 327 328 static bool 329 atw_cardbus_suspend(device_t self, const pmf_qual_t *qual) 330 { 331 struct atw_cardbus_softc *csc = device_private(self); 332 cardbus_devfunc_t ct = csc->sc_ct; 333 334 /* Unhook the interrupt handler. */ 335 Cardbus_intr_disestablish(ct, csc->sc_ih); 336 csc->sc_ih = NULL; 337 338 return atw_suspend(self, qual); 339 } 340 341 static void 342 atw_cardbus_setup(struct atw_cardbus_softc *csc) 343 { 344 cardbus_devfunc_t ct = csc->sc_ct; 345 pcireg_t csr; 346 int rc; 347 348 if ((rc = cardbus_set_powerstate(ct, csc->sc_tag, PCI_PWR_D0)) != 0) 349 aprint_debug("%s: cardbus_set_powerstate %d\n", __func__, rc); 350 351 /* Program the BAR. */ 352 Cardbus_conf_write(ct, csc->sc_tag, csc->sc_bar_reg, 353 csc->sc_bar_val); 354 355 /* Enable the appropriate bits in the PCI CSR. */ 356 csr = Cardbus_conf_read(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG); 357 csr &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE); 358 csr |= csc->sc_csr; 359 Cardbus_conf_write(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG, csr); 360 } 361
Indexes created Fri Sep 26 20:09:58 GMT 2025