1 /* $NetBSD: if_iwn.c,v 1.100 2024/04/03 01:13:41 gutteridge Exp $ */ 2 /* $OpenBSD: if_iwn.c,v 1.135 2014/09/10 07:22:09 dcoppa Exp $ */ 3 4 /*- 5 * Copyright (c) 2007-2010 Damien Bergamini <damien.bergamini@free.fr> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /* 21 * Driver for Intel WiFi Link 4965 and 1000/5000/6000 Series 802.11 network 22 * adapters. 23 */ 24 #include <sys/cdefs.h> 25 __KERNEL_RCSID(0, "$NetBSD: if_iwn.c,v 1.100 2024/04/03 01:13:41 gutteridge Exp $"); 26 27 #define IWN_USE_RBUF /* Use local storage for RX */ 28 #undef IWN_HWCRYPTO /* XXX does not even compile yet */ 29 30 #include <sys/param.h> 31 #include <sys/sockio.h> 32 #include <sys/proc.h> 33 #include <sys/mbuf.h> 34 #include <sys/kernel.h> 35 #include <sys/socket.h> 36 #include <sys/systm.h> 37 #include <sys/malloc.h> 38 #ifdef notyetMODULE 39 #include <sys/module.h> 40 #endif 41 #include <sys/mutex.h> 42 #include <sys/conf.h> 43 #include <sys/kauth.h> 44 #include <sys/callout.h> 45 46 #include <dev/sysmon/sysmonvar.h> 47 48 #include <sys/bus.h> 49 #include <machine/endian.h> 50 #include <sys/intr.h> 51 52 #include <dev/pci/pcireg.h> 53 #include <dev/pci/pcivar.h> 54 #include <dev/pci/pcidevs.h> 55 56 #include <net/bpf.h> 57 #include <net/if.h> 58 #include <net/if_arp.h> 59 #include <net/if_dl.h> 60 #include <net/if_media.h> 61 #include <net/if_types.h> 62 63 #include <netinet/in.h> 64 #include <netinet/in_systm.h> 65 #include <netinet/in_var.h> 66 #include <net/if_ether.h> 67 #include <netinet/ip.h> 68 69 #include <net80211/ieee80211_var.h> 70 #include <net80211/ieee80211_amrr.h> 71 #include <net80211/ieee80211_radiotap.h> 72 73 #include <dev/firmload.h> 74 75 #include <dev/pci/if_iwnreg.h> 76 #include <dev/pci/if_iwnvar.h> 77 78 static const struct device_compatible_entry compat_data[] = { 79 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 80 PCI_PRODUCT_INTEL_WIFI_LINK_1030_1), }, 81 82 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 83 PCI_PRODUCT_INTEL_WIFI_LINK_1030_2), }, 84 85 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 86 PCI_PRODUCT_INTEL_WIFI_LINK_4965_1), }, 87 88 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 89 PCI_PRODUCT_INTEL_WIFI_LINK_4965_2), }, 90 91 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 92 PCI_PRODUCT_INTEL_WIFI_LINK_4965_3), }, 93 94 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 95 PCI_PRODUCT_INTEL_WIFI_LINK_4965_4), }, 96 97 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 98 PCI_PRODUCT_INTEL_WIFI_LINK_5100_1), }, 99 100 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 101 PCI_PRODUCT_INTEL_WIFI_LINK_5100_2), }, 102 103 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 104 PCI_PRODUCT_INTEL_WIFI_LINK_5150_1), }, 105 106 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 107 PCI_PRODUCT_INTEL_WIFI_LINK_5150_2), }, 108 109 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 110 PCI_PRODUCT_INTEL_WIFI_LINK_5300_1), }, 111 112 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 113 PCI_PRODUCT_INTEL_WIFI_LINK_5300_2), }, 114 115 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 116 PCI_PRODUCT_INTEL_WIFI_LINK_5350_1), }, 117 118 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 119 PCI_PRODUCT_INTEL_WIFI_LINK_5350_2), }, 120 121 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 122 PCI_PRODUCT_INTEL_WIFI_LINK_1000_1), }, 123 124 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 125 PCI_PRODUCT_INTEL_WIFI_LINK_1000_2), }, 126 127 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 128 PCI_PRODUCT_INTEL_WIFI_LINK_6000_3X3_1), }, 129 130 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 131 PCI_PRODUCT_INTEL_WIFI_LINK_6000_3X3_2), }, 132 133 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 134 PCI_PRODUCT_INTEL_WIFI_LINK_6000_IPA_1), }, 135 136 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 137 PCI_PRODUCT_INTEL_WIFI_LINK_6000_IPA_2), }, 138 139 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 140 PCI_PRODUCT_INTEL_WIFI_LINK_6050_2X2_1), }, 141 142 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 143 PCI_PRODUCT_INTEL_WIFI_LINK_6050_2X2_2), }, 144 145 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 146 PCI_PRODUCT_INTEL_WIFI_LINK_6005_2X2_1), }, 147 148 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 149 PCI_PRODUCT_INTEL_WIFI_LINK_6005_2X2_2), }, 150 151 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 152 PCI_PRODUCT_INTEL_WIFI_LINK_6230_1), }, 153 154 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 155 PCI_PRODUCT_INTEL_WIFI_LINK_6230_2), }, 156 157 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 158 PCI_PRODUCT_INTEL_WIFI_LINK_6235), }, 159 160 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 161 PCI_PRODUCT_INTEL_WIFI_LINK_6235_2), }, 162 163 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 164 PCI_PRODUCT_INTEL_WIFI_LINK_100_1), }, 165 166 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 167 PCI_PRODUCT_INTEL_WIFI_LINK_100_2), }, 168 169 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 170 PCI_PRODUCT_INTEL_WIFI_LINK_130_1), }, 171 172 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 173 PCI_PRODUCT_INTEL_WIFI_LINK_130_2), }, 174 175 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 176 PCI_PRODUCT_INTEL_WIFI_LINK_2230_1), }, 177 178 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 179 PCI_PRODUCT_INTEL_WIFI_LINK_2230_2), }, 180 181 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 182 PCI_PRODUCT_INTEL_WIFI_LINK_2200_1), }, 183 184 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 185 PCI_PRODUCT_INTEL_WIFI_LINK_2200_2), }, 186 187 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 188 PCI_PRODUCT_INTEL_WIFI_LINK_135_1), }, 189 190 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 191 PCI_PRODUCT_INTEL_WIFI_LINK_135_2), }, 192 193 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 194 PCI_PRODUCT_INTEL_WIFI_LINK_105_1), }, 195 196 { .id = PCI_ID_CODE(PCI_VENDOR_INTEL, 197 PCI_PRODUCT_INTEL_WIFI_LINK_105_2), }, 198 199 PCI_COMPAT_EOL 200 }; 201 202 static int iwn_match(device_t , struct cfdata *, void *); 203 static void iwn_attach(device_t , device_t , void *); 204 static int iwn4965_attach(struct iwn_softc *, pci_product_id_t); 205 static int iwn5000_attach(struct iwn_softc *, pci_product_id_t); 206 static void iwn_radiotap_attach(struct iwn_softc *); 207 static int iwn_detach(device_t , int); 208 #if 0 209 static void iwn_power(int, void *); 210 #endif 211 static bool iwn_resume(device_t, const pmf_qual_t *); 212 static int iwn_nic_lock(struct iwn_softc *); 213 static int iwn_eeprom_lock(struct iwn_softc *); 214 static int iwn_init_otprom(struct iwn_softc *); 215 static int iwn_read_prom_data(struct iwn_softc *, uint32_t, void *, int); 216 static int iwn_dma_contig_alloc(bus_dma_tag_t, struct iwn_dma_info *, 217 void **, bus_size_t, bus_size_t); 218 static void iwn_dma_contig_free(struct iwn_dma_info *); 219 static int iwn_alloc_sched(struct iwn_softc *); 220 static void iwn_free_sched(struct iwn_softc *); 221 static int iwn_alloc_kw(struct iwn_softc *); 222 static void iwn_free_kw(struct iwn_softc *); 223 static int iwn_alloc_ict(struct iwn_softc *); 224 static void iwn_free_ict(struct iwn_softc *); 225 static int iwn_alloc_fwmem(struct iwn_softc *); 226 static void iwn_free_fwmem(struct iwn_softc *); 227 static int iwn_alloc_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 228 static void iwn_reset_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 229 static void iwn_free_rx_ring(struct iwn_softc *, struct iwn_rx_ring *); 230 static int iwn_alloc_tx_ring(struct iwn_softc *, struct iwn_tx_ring *, 231 int); 232 static void iwn_reset_tx_ring(struct iwn_softc *, struct iwn_tx_ring *); 233 static void iwn_free_tx_ring(struct iwn_softc *, struct iwn_tx_ring *); 234 static void iwn5000_ict_reset(struct iwn_softc *); 235 static int iwn_read_eeprom(struct iwn_softc *); 236 static void iwn4965_read_eeprom(struct iwn_softc *); 237 238 #ifdef IWN_DEBUG 239 static void iwn4965_print_power_group(struct iwn_softc *, int); 240 #endif 241 static void iwn5000_read_eeprom(struct iwn_softc *); 242 static void iwn_read_eeprom_channels(struct iwn_softc *, int, uint32_t); 243 static void iwn_read_eeprom_enhinfo(struct iwn_softc *); 244 static struct ieee80211_node *iwn_node_alloc(struct ieee80211_node_table *); 245 static void iwn_newassoc(struct ieee80211_node *, int); 246 static int iwn_media_change(struct ifnet *); 247 static int iwn_newstate(struct ieee80211com *, enum ieee80211_state, int); 248 static void iwn_iter_func(void *, struct ieee80211_node *); 249 static void iwn_calib_timeout(void *); 250 static void iwn_rx_phy(struct iwn_softc *, struct iwn_rx_desc *, 251 struct iwn_rx_data *); 252 static void iwn_rx_done(struct iwn_softc *, struct iwn_rx_desc *, 253 struct iwn_rx_data *); 254 #ifndef IEEE80211_NO_HT 255 static void iwn_rx_compressed_ba(struct iwn_softc *, struct iwn_rx_desc *, 256 struct iwn_rx_data *); 257 #endif 258 static void iwn5000_rx_calib_results(struct iwn_softc *, 259 struct iwn_rx_desc *, struct iwn_rx_data *); 260 static void iwn_rx_statistics(struct iwn_softc *, struct iwn_rx_desc *, 261 struct iwn_rx_data *); 262 static void iwn4965_tx_done(struct iwn_softc *, struct iwn_rx_desc *, 263 struct iwn_rx_data *); 264 static void iwn5000_tx_done(struct iwn_softc *, struct iwn_rx_desc *, 265 struct iwn_rx_data *); 266 static void iwn_tx_done(struct iwn_softc *, struct iwn_rx_desc *, int, 267 uint8_t); 268 static void iwn_cmd_done(struct iwn_softc *, struct iwn_rx_desc *); 269 static void iwn_notif_intr(struct iwn_softc *); 270 static void iwn_wakeup_intr(struct iwn_softc *); 271 static void iwn_fatal_intr(struct iwn_softc *); 272 static int iwn_intr(void *); 273 static void iwn_softintr(void *); 274 static void iwn4965_update_sched(struct iwn_softc *, int, int, uint8_t, 275 uint16_t); 276 static void iwn5000_update_sched(struct iwn_softc *, int, int, uint8_t, 277 uint16_t); 278 #ifdef notyet 279 static void iwn5000_reset_sched(struct iwn_softc *, int, int); 280 #endif 281 static int iwn_tx(struct iwn_softc *, struct mbuf *, 282 struct ieee80211_node *, int); 283 static void iwn_start(struct ifnet *); 284 static void iwn_watchdog(struct ifnet *); 285 static int iwn_ioctl(struct ifnet *, u_long, void *); 286 static int iwn_cmd(struct iwn_softc *, int, const void *, int, int); 287 static int iwn4965_add_node(struct iwn_softc *, struct iwn_node_info *, 288 int); 289 static int iwn5000_add_node(struct iwn_softc *, struct iwn_node_info *, 290 int); 291 static int iwn_set_link_quality(struct iwn_softc *, 292 struct ieee80211_node *); 293 static int iwn_add_broadcast_node(struct iwn_softc *, int); 294 static void iwn_set_led(struct iwn_softc *, uint8_t, uint8_t, uint8_t); 295 static int iwn_set_critical_temp(struct iwn_softc *); 296 static int iwn_set_timing(struct iwn_softc *, struct ieee80211_node *); 297 static void iwn4965_power_calibration(struct iwn_softc *, int); 298 static int iwn4965_set_txpower(struct iwn_softc *, int); 299 static int iwn5000_set_txpower(struct iwn_softc *, int); 300 static int iwn4965_get_rssi(const struct iwn_rx_stat *); 301 static int iwn5000_get_rssi(const struct iwn_rx_stat *); 302 static int iwn_get_noise(const struct iwn_rx_general_stats *); 303 static int iwn4965_get_temperature(struct iwn_softc *); 304 static int iwn5000_get_temperature(struct iwn_softc *); 305 static int iwn_init_sensitivity(struct iwn_softc *); 306 static void iwn_collect_noise(struct iwn_softc *, 307 const struct iwn_rx_general_stats *); 308 static int iwn4965_init_gains(struct iwn_softc *); 309 static int iwn5000_init_gains(struct iwn_softc *); 310 static int iwn4965_set_gains(struct iwn_softc *); 311 static int iwn5000_set_gains(struct iwn_softc *); 312 static void iwn_tune_sensitivity(struct iwn_softc *, 313 const struct iwn_rx_stats *); 314 static int iwn_send_sensitivity(struct iwn_softc *); 315 static int iwn_set_pslevel(struct iwn_softc *, int, int, int); 316 static int iwn5000_runtime_calib(struct iwn_softc *); 317 318 static int iwn_config_bt_coex_bluetooth(struct iwn_softc *); 319 static int iwn_config_bt_coex_prio_table(struct iwn_softc *); 320 static int iwn_config_bt_coex_adv1(struct iwn_softc *); 321 static int iwn_config_bt_coex_adv2(struct iwn_softc *); 322 323 static int iwn_config(struct iwn_softc *); 324 static uint16_t iwn_get_active_dwell_time(struct iwn_softc *, uint16_t, 325 uint8_t); 326 static uint16_t iwn_limit_dwell(struct iwn_softc *, uint16_t); 327 static uint16_t iwn_get_passive_dwell_time(struct iwn_softc *, uint16_t); 328 static int iwn_scan(struct iwn_softc *, uint16_t); 329 static int iwn_auth(struct iwn_softc *); 330 static int iwn_run(struct iwn_softc *); 331 #ifdef IWN_HWCRYPTO 332 static int iwn_set_key(struct ieee80211com *, struct ieee80211_node *, 333 struct ieee80211_key *); 334 static void iwn_delete_key(struct ieee80211com *, struct ieee80211_node *, 335 struct ieee80211_key *); 336 #endif 337 static int iwn_wme_update(struct ieee80211com *); 338 #ifndef IEEE80211_NO_HT 339 static int iwn_ampdu_rx_start(struct ieee80211com *, 340 struct ieee80211_node *, uint8_t); 341 static void iwn_ampdu_rx_stop(struct ieee80211com *, 342 struct ieee80211_node *, uint8_t); 343 static int iwn_ampdu_tx_start(struct ieee80211com *, 344 struct ieee80211_node *, uint8_t); 345 static void iwn_ampdu_tx_stop(struct ieee80211com *, 346 struct ieee80211_node *, uint8_t); 347 static void iwn4965_ampdu_tx_start(struct iwn_softc *, 348 struct ieee80211_node *, uint8_t, uint16_t); 349 static void iwn4965_ampdu_tx_stop(struct iwn_softc *, 350 uint8_t, uint16_t); 351 static void iwn5000_ampdu_tx_start(struct iwn_softc *, 352 struct ieee80211_node *, uint8_t, uint16_t); 353 static void iwn5000_ampdu_tx_stop(struct iwn_softc *, 354 uint8_t, uint16_t); 355 #endif 356 static int iwn5000_query_calibration(struct iwn_softc *); 357 static int iwn5000_send_calibration(struct iwn_softc *); 358 static int iwn5000_send_wimax_coex(struct iwn_softc *); 359 static int iwn6000_temp_offset_calib(struct iwn_softc *); 360 static int iwn2000_temp_offset_calib(struct iwn_softc *); 361 static int iwn4965_post_alive(struct iwn_softc *); 362 static int iwn5000_post_alive(struct iwn_softc *); 363 static int iwn4965_load_bootcode(struct iwn_softc *, const uint8_t *, 364 int); 365 static int iwn4965_load_firmware(struct iwn_softc *); 366 static int iwn5000_load_firmware_section(struct iwn_softc *, uint32_t, 367 const uint8_t *, int); 368 static int iwn5000_load_firmware(struct iwn_softc *); 369 static int iwn_read_firmware_leg(struct iwn_softc *, 370 struct iwn_fw_info *); 371 static int iwn_read_firmware_tlv(struct iwn_softc *, 372 struct iwn_fw_info *, uint16_t); 373 static int iwn_read_firmware(struct iwn_softc *); 374 static int iwn_clock_wait(struct iwn_softc *); 375 static int iwn_apm_init(struct iwn_softc *); 376 static void iwn_apm_stop_master(struct iwn_softc *); 377 static void iwn_apm_stop(struct iwn_softc *); 378 static int iwn4965_nic_config(struct iwn_softc *); 379 static int iwn5000_nic_config(struct iwn_softc *); 380 static int iwn_hw_prepare(struct iwn_softc *); 381 static int iwn_hw_init(struct iwn_softc *); 382 static void iwn_hw_stop(struct iwn_softc *); 383 static int iwn_init(struct ifnet *); 384 static void iwn_stop(struct ifnet *, int); 385 386 /* XXX MCLGETI alternative */ 387 static struct mbuf *MCLGETIalt(struct iwn_softc *, int, 388 struct ifnet *, u_int); 389 #ifdef IWN_USE_RBUF 390 static struct iwn_rbuf *iwn_alloc_rbuf(struct iwn_softc *); 391 static void iwn_free_rbuf(struct mbuf *, void *, size_t, void *); 392 static int iwn_alloc_rpool(struct iwn_softc *); 393 static void iwn_free_rpool(struct iwn_softc *); 394 #endif 395 396 static void iwn_fix_channel(struct ieee80211com *, struct mbuf *, 397 struct iwn_rx_stat *); 398 399 #ifdef IWN_DEBUG 400 #define DPRINTF(x) do { if (iwn_debug > 0) printf x; } while (0) 401 #define DPRINTFN(n, x) do { if (iwn_debug >= (n)) printf x; } while (0) 402 int iwn_debug = 0; 403 #else 404 #define DPRINTF(x) 405 #define DPRINTFN(n, x) 406 #endif 407 408 CFATTACH_DECL_NEW(iwn, sizeof(struct iwn_softc), iwn_match, iwn_attach, 409 iwn_detach, NULL); 410 411 static int 412 iwn_match(device_t parent, cfdata_t match __unused, void *aux) 413 { 414 struct pci_attach_args *pa = aux; 415 416 return pci_compatible_match(pa, compat_data); 417 } 418 419 static void 420 iwn_attach(device_t parent __unused, device_t self, void *aux) 421 { 422 struct iwn_softc *sc = device_private(self); 423 struct ieee80211com *ic = &sc->sc_ic; 424 struct ifnet *ifp = &sc->sc_ec.ec_if; 425 struct pci_attach_args *pa = aux; 426 const char *intrstr; 427 pcireg_t memtype, reg; 428 int i, error; 429 char intrbuf[PCI_INTRSTR_LEN]; 430 431 sc->sc_dev = self; 432 sc->sc_pct = pa->pa_pc; 433 sc->sc_pcitag = pa->pa_tag; 434 sc->sc_dmat = pa->pa_dmat; 435 mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_NONE); 436 437 callout_init(&sc->calib_to, 0); 438 callout_setfunc(&sc->calib_to, iwn_calib_timeout, sc); 439 440 pci_aprint_devinfo(pa, NULL); 441 442 /* 443 * Get the offset of the PCI Express Capability Structure in PCI 444 * Configuration Space. 445 */ 446 error = pci_get_capability(sc->sc_pct, sc->sc_pcitag, 447 PCI_CAP_PCIEXPRESS, &sc->sc_cap_off, NULL); 448 if (error == 0) { 449 aprint_error_dev(self, 450 "PCIe capability structure not found!\n"); 451 return; 452 } 453 454 /* Clear device-specific "PCI retry timeout" register (41h). */ 455 reg = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 456 if (reg & 0xff00) 457 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, reg & ~0xff00); 458 459 /* Enable bus-mastering. */ 460 /* XXX verify the bus-mastering is really needed (not in OpenBSD) */ 461 reg = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 462 reg |= PCI_COMMAND_MASTER_ENABLE; 463 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, reg); 464 465 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, IWN_PCI_BAR0); 466 error = pci_mapreg_map(pa, IWN_PCI_BAR0, memtype, 0, &sc->sc_st, 467 &sc->sc_sh, NULL, &sc->sc_sz); 468 if (error != 0) { 469 aprint_error_dev(self, "can't map mem space\n"); 470 return; 471 } 472 473 sc->sc_soft_ih = softint_establish(SOFTINT_NET, iwn_softintr, sc); 474 if (sc->sc_soft_ih == NULL) { 475 aprint_error_dev(self, "can't establish soft interrupt\n"); 476 goto unmap; 477 } 478 479 /* Install interrupt handler. */ 480 error = pci_intr_alloc(pa, &sc->sc_pihp, NULL, 0); 481 if (error) { 482 aprint_error_dev(self, "can't allocate interrupt\n"); 483 goto failsi; 484 } 485 reg = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 486 if (pci_intr_type(sc->sc_pct, sc->sc_pihp[0]) == PCI_INTR_TYPE_INTX) 487 CLR(reg, PCI_COMMAND_INTERRUPT_DISABLE); 488 else 489 SET(reg, PCI_COMMAND_INTERRUPT_DISABLE); 490 pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, reg); 491 intrstr = pci_intr_string(sc->sc_pct, sc->sc_pihp[0], intrbuf, 492 sizeof(intrbuf)); 493 sc->sc_ih = pci_intr_establish_xname(sc->sc_pct, sc->sc_pihp[0], 494 IPL_NET, iwn_intr, sc, device_xname(self)); 495 if (sc->sc_ih == NULL) { 496 aprint_error_dev(self, "can't establish interrupt"); 497 if (intrstr != NULL) 498 aprint_error(" at %s", intrstr); 499 aprint_error("\n"); 500 goto failia; 501 } 502 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 503 504 /* Read hardware revision and attach. */ 505 sc->hw_type = 506 (IWN_READ(sc, IWN_HW_REV) & IWN_HW_REV_TYPE_MASK) 507 >> IWN_HW_REV_TYPE_SHIFT; 508 if (sc->hw_type == IWN_HW_REV_TYPE_4965) 509 error = iwn4965_attach(sc, PCI_PRODUCT(pa->pa_id)); 510 else 511 error = iwn5000_attach(sc, PCI_PRODUCT(pa->pa_id)); 512 if (error != 0) { 513 aprint_error_dev(self, "could not attach device\n"); 514 goto failih; 515 } 516 517 if ((error = iwn_hw_prepare(sc)) != 0) { 518 aprint_error_dev(self, "hardware not ready\n"); 519 goto failih; 520 } 521 522 /* Read MAC address, channels, etc from EEPROM. */ 523 if ((error = iwn_read_eeprom(sc)) != 0) { 524 aprint_error_dev(self, "could not read EEPROM\n"); 525 goto failih; 526 } 527 528 /* Allocate DMA memory for firmware transfers. */ 529 if ((error = iwn_alloc_fwmem(sc)) != 0) { 530 aprint_error_dev(self, 531 "could not allocate memory for firmware\n"); 532 goto failih; 533 } 534 535 /* Allocate "Keep Warm" page. */ 536 if ((error = iwn_alloc_kw(sc)) != 0) { 537 aprint_error_dev(self, "could not allocate keep warm page\n"); 538 goto fail1; 539 } 540 541 /* Allocate ICT table for 5000 Series. */ 542 if (sc->hw_type != IWN_HW_REV_TYPE_4965 && 543 (error = iwn_alloc_ict(sc)) != 0) { 544 aprint_error_dev(self, "could not allocate ICT table\n"); 545 goto fail2; 546 } 547 548 /* Allocate TX scheduler "rings". */ 549 if ((error = iwn_alloc_sched(sc)) != 0) { 550 aprint_error_dev(self, 551 "could not allocate TX scheduler rings\n"); 552 goto fail3; 553 } 554 555 #ifdef IWN_USE_RBUF 556 /* Allocate RX buffers. */ 557 if ((error = iwn_alloc_rpool(sc)) != 0) { 558 aprint_error_dev(self, "could not allocate RX buffers\n"); 559 goto fail3; 560 } 561 #endif 562 563 /* Allocate TX rings (16 on 4965AGN, 20 on >=5000). */ 564 for (i = 0; i < sc->ntxqs; i++) { 565 if ((error = iwn_alloc_tx_ring(sc, &sc->txq[i], i)) != 0) { 566 aprint_error_dev(self, 567 "could not allocate TX ring %d\n", i); 568 goto fail4; 569 } 570 } 571 572 /* Allocate RX ring. */ 573 if ((error = iwn_alloc_rx_ring(sc, &sc->rxq)) != 0) { 574 aprint_error_dev(self, "could not allocate RX ring\n"); 575 goto fail4; 576 } 577 578 /* Clear pending interrupts. */ 579 IWN_WRITE(sc, IWN_INT, 0xffffffff); 580 581 /* Count the number of available chains. */ 582 sc->ntxchains = 583 ((sc->txchainmask >> 2) & 1) + 584 ((sc->txchainmask >> 1) & 1) + 585 ((sc->txchainmask >> 0) & 1); 586 sc->nrxchains = 587 ((sc->rxchainmask >> 2) & 1) + 588 ((sc->rxchainmask >> 1) & 1) + 589 ((sc->rxchainmask >> 0) & 1); 590 aprint_normal_dev(self, "MIMO %dT%dR, %.4s, address %s\n", 591 sc->ntxchains, sc->nrxchains, sc->eeprom_domain, 592 ether_sprintf(ic->ic_myaddr)); 593 594 ic->ic_ifp = ifp; 595 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 596 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 597 ic->ic_state = IEEE80211_S_INIT; 598 599 /* 600 * Set device capabilities. 601 * XXX OpenBSD has IEEE80211_C_WEP, IEEE80211_C_RSN, and 602 * IEEE80211_C_PMGT too. 603 */ 604 ic->ic_caps = 605 IEEE80211_C_IBSS | /* IBSS mode support */ 606 IEEE80211_C_WPA | /* 802.11i */ 607 IEEE80211_C_MONITOR | /* monitor mode supported */ 608 IEEE80211_C_TXPMGT | /* tx power management */ 609 IEEE80211_C_SHSLOT | /* short slot time supported */ 610 IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 611 IEEE80211_C_WME; /* 802.11e */ 612 613 #ifndef IEEE80211_NO_HT 614 if (sc->sc_flags & IWN_FLAG_HAS_11N) { 615 /* Set HT capabilities. */ 616 ic->ic_htcaps = 617 #if IWN_RBUF_SIZE == 8192 618 IEEE80211_HTCAP_AMSDU7935 | 619 #endif 620 IEEE80211_HTCAP_CBW20_40 | 621 IEEE80211_HTCAP_SGI20 | 622 IEEE80211_HTCAP_SGI40; 623 if (sc->hw_type != IWN_HW_REV_TYPE_4965) 624 ic->ic_htcaps |= IEEE80211_HTCAP_GF; 625 if (sc->hw_type == IWN_HW_REV_TYPE_6050) 626 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_DYN; 627 else 628 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_DIS; 629 } 630 #endif /* !IEEE80211_NO_HT */ 631 632 /* Set supported legacy rates. */ 633 ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; 634 ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g; 635 if (sc->sc_flags & IWN_FLAG_HAS_5GHZ) { 636 ic->ic_sup_rates[IEEE80211_MODE_11A] = ieee80211_std_rateset_11a; 637 } 638 #ifndef IEEE80211_NO_HT 639 if (sc->sc_flags & IWN_FLAG_HAS_11N) { 640 /* Set supported HT rates. */ 641 ic->ic_sup_mcs[0] = 0xff; /* MCS 0-7 */ 642 if (sc->nrxchains > 1) 643 ic->ic_sup_mcs[1] = 0xff; /* MCS 7-15 */ 644 if (sc->nrxchains > 2) 645 ic->ic_sup_mcs[2] = 0xff; /* MCS 16-23 */ 646 } 647 #endif 648 649 /* IBSS channel undefined for now. */ 650 ic->ic_ibss_chan = &ic->ic_channels[0]; 651 652 ifp->if_softc = sc; 653 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 654 ifp->if_init = iwn_init; 655 ifp->if_ioctl = iwn_ioctl; 656 ifp->if_start = iwn_start; 657 ifp->if_stop = iwn_stop; 658 ifp->if_watchdog = iwn_watchdog; 659 IFQ_SET_READY(&ifp->if_snd); 660 memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 661 662 if_initialize(ifp); 663 ieee80211_ifattach(ic); 664 /* Use common softint-based if_input */ 665 ifp->if_percpuq = if_percpuq_create(ifp); 666 if_register(ifp); 667 668 ic->ic_node_alloc = iwn_node_alloc; 669 ic->ic_newassoc = iwn_newassoc; 670 #ifdef IWN_HWCRYPTO 671 ic->ic_crypto.cs_key_set = iwn_set_key; 672 ic->ic_crypto.cs_key_delete = iwn_delete_key; 673 #endif 674 ic->ic_wme.wme_update = iwn_wme_update; 675 #ifndef IEEE80211_NO_HT 676 ic->ic_ampdu_rx_start = iwn_ampdu_rx_start; 677 ic->ic_ampdu_rx_stop = iwn_ampdu_rx_stop; 678 ic->ic_ampdu_tx_start = iwn_ampdu_tx_start; 679 ic->ic_ampdu_tx_stop = iwn_ampdu_tx_stop; 680 #endif 681 682 /* Override 802.11 state transition machine. */ 683 sc->sc_newstate = ic->ic_newstate; 684 ic->ic_newstate = iwn_newstate; 685 686 /* XXX media locking needs revisiting */ 687 mutex_init(&sc->sc_media_mtx, MUTEX_DEFAULT, IPL_SOFTNET); 688 ieee80211_media_init_with_lock(ic, 689 iwn_media_change, ieee80211_media_status, &sc->sc_media_mtx); 690 691 sc->amrr.amrr_min_success_threshold = 1; 692 sc->amrr.amrr_max_success_threshold = 15; 693 694 iwn_radiotap_attach(sc); 695 696 /* 697 * XXX for NetBSD, OpenBSD timeout_set replaced by 698 * callout_init and callout_setfunc, above. 699 */ 700 701 if (pmf_device_register(self, NULL, iwn_resume)) 702 pmf_class_network_register(self, ifp); 703 else 704 aprint_error_dev(self, "couldn't establish power handler\n"); 705 706 /* XXX NetBSD add call to ieee80211_announce for dmesg. */ 707 ieee80211_announce(ic); 708 709 sc->sc_flags |= IWN_FLAG_ATTACHED; 710 return; 711 712 /* Free allocated memory if something failed during attachment. */ 713 fail4: while (--i >= 0) 714 iwn_free_tx_ring(sc, &sc->txq[i]); 715 #ifdef IWN_USE_RBUF 716 iwn_free_rpool(sc); 717 #endif 718 iwn_free_sched(sc); 719 fail3: if (sc->ict != NULL) 720 iwn_free_ict(sc); 721 fail2: iwn_free_kw(sc); 722 fail1: iwn_free_fwmem(sc); 723 failih: pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 724 sc->sc_ih = NULL; 725 failia: pci_intr_release(sc->sc_pct, sc->sc_pihp, 1); 726 sc->sc_pihp = NULL; 727 failsi: softint_disestablish(sc->sc_soft_ih); 728 sc->sc_soft_ih = NULL; 729 unmap: bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 730 } 731 732 int 733 iwn4965_attach(struct iwn_softc *sc, pci_product_id_t pid) 734 { 735 struct iwn_ops *ops = &sc->ops; 736 737 ops->load_firmware = iwn4965_load_firmware; 738 ops->read_eeprom = iwn4965_read_eeprom; 739 ops->post_alive = iwn4965_post_alive; 740 ops->nic_config = iwn4965_nic_config; 741 ops->config_bt_coex = iwn_config_bt_coex_bluetooth; 742 ops->update_sched = iwn4965_update_sched; 743 ops->get_temperature = iwn4965_get_temperature; 744 ops->get_rssi = iwn4965_get_rssi; 745 ops->set_txpower = iwn4965_set_txpower; 746 ops->init_gains = iwn4965_init_gains; 747 ops->set_gains = iwn4965_set_gains; 748 ops->add_node = iwn4965_add_node; 749 ops->tx_done = iwn4965_tx_done; 750 #ifndef IEEE80211_NO_HT 751 ops->ampdu_tx_start = iwn4965_ampdu_tx_start; 752 ops->ampdu_tx_stop = iwn4965_ampdu_tx_stop; 753 #endif 754 sc->ntxqs = IWN4965_NTXQUEUES; 755 sc->ndmachnls = IWN4965_NDMACHNLS; 756 sc->broadcast_id = IWN4965_ID_BROADCAST; 757 sc->rxonsz = IWN4965_RXONSZ; 758 sc->schedsz = IWN4965_SCHEDSZ; 759 sc->fw_text_maxsz = IWN4965_FW_TEXT_MAXSZ; 760 sc->fw_data_maxsz = IWN4965_FW_DATA_MAXSZ; 761 sc->fwsz = IWN4965_FWSZ; 762 sc->sched_txfact_addr = IWN4965_SCHED_TXFACT; 763 sc->limits = &iwn4965_sensitivity_limits; 764 sc->fwname = "iwlwifi-4965-2.ucode"; 765 /* Override chains masks, ROM is known to be broken. */ 766 sc->txchainmask = IWN_ANT_AB; 767 sc->rxchainmask = IWN_ANT_ABC; 768 769 return 0; 770 } 771 772 int 773 iwn5000_attach(struct iwn_softc *sc, pci_product_id_t pid) 774 { 775 struct iwn_ops *ops = &sc->ops; 776 777 ops->load_firmware = iwn5000_load_firmware; 778 ops->read_eeprom = iwn5000_read_eeprom; 779 ops->post_alive = iwn5000_post_alive; 780 ops->nic_config = iwn5000_nic_config; 781 ops->config_bt_coex = iwn_config_bt_coex_bluetooth; 782 ops->update_sched = iwn5000_update_sched; 783 ops->get_temperature = iwn5000_get_temperature; 784 ops->get_rssi = iwn5000_get_rssi; 785 ops->set_txpower = iwn5000_set_txpower; 786 ops->init_gains = iwn5000_init_gains; 787 ops->set_gains = iwn5000_set_gains; 788 ops->add_node = iwn5000_add_node; 789 ops->tx_done = iwn5000_tx_done; 790 #ifndef IEEE80211_NO_HT 791 ops->ampdu_tx_start = iwn5000_ampdu_tx_start; 792 ops->ampdu_tx_stop = iwn5000_ampdu_tx_stop; 793 #endif 794 sc->ntxqs = IWN5000_NTXQUEUES; 795 sc->ndmachnls = IWN5000_NDMACHNLS; 796 sc->broadcast_id = IWN5000_ID_BROADCAST; 797 sc->rxonsz = IWN5000_RXONSZ; 798 sc->schedsz = IWN5000_SCHEDSZ; 799 sc->fw_text_maxsz = IWN5000_FW_TEXT_MAXSZ; 800 sc->fw_data_maxsz = IWN5000_FW_DATA_MAXSZ; 801 sc->fwsz = IWN5000_FWSZ; 802 sc->sched_txfact_addr = IWN5000_SCHED_TXFACT; 803 804 switch (sc->hw_type) { 805 case IWN_HW_REV_TYPE_5100: 806 sc->limits = &iwn5000_sensitivity_limits; 807 sc->fwname = "iwlwifi-5000-2.ucode"; 808 /* Override chains masks, ROM is known to be broken. */ 809 sc->txchainmask = IWN_ANT_B; 810 sc->rxchainmask = IWN_ANT_AB; 811 break; 812 case IWN_HW_REV_TYPE_5150: 813 sc->limits = &iwn5150_sensitivity_limits; 814 sc->fwname = "iwlwifi-5150-2.ucode"; 815 break; 816 case IWN_HW_REV_TYPE_5300: 817 case IWN_HW_REV_TYPE_5350: 818 sc->limits = &iwn5000_sensitivity_limits; 819 sc->fwname = "iwlwifi-5000-2.ucode"; 820 break; 821 case IWN_HW_REV_TYPE_1000: 822 sc->limits = &iwn1000_sensitivity_limits; 823 if (pid == PCI_PRODUCT_INTEL_WIFI_LINK_100_1 || 824 pid == PCI_PRODUCT_INTEL_WIFI_LINK_100_2) 825 sc->fwname = "iwlwifi-100-5.ucode"; 826 else 827 sc->fwname = "iwlwifi-1000-3.ucode"; 828 break; 829 case IWN_HW_REV_TYPE_6000: 830 sc->limits = &iwn6000_sensitivity_limits; 831 sc->fwname = "iwlwifi-6000-4.ucode"; 832 if (pid == PCI_PRODUCT_INTEL_WIFI_LINK_6000_IPA_1 || 833 pid == PCI_PRODUCT_INTEL_WIFI_LINK_6000_IPA_2) { 834 sc->sc_flags |= IWN_FLAG_INTERNAL_PA; 835 /* Override chains masks, ROM is known to be broken. */ 836 sc->txchainmask = IWN_ANT_BC; 837 sc->rxchainmask = IWN_ANT_BC; 838 } 839 break; 840 case IWN_HW_REV_TYPE_6050: 841 sc->limits = &iwn6000_sensitivity_limits; 842 sc->fwname = "iwlwifi-6050-5.ucode"; 843 break; 844 case IWN_HW_REV_TYPE_6005: 845 sc->limits = &iwn6000_sensitivity_limits; 846 /* Type 6030 cards return IWN_HW_REV_TYPE_6005 */ 847 if (pid == PCI_PRODUCT_INTEL_WIFI_LINK_1030_1 || 848 pid == PCI_PRODUCT_INTEL_WIFI_LINK_1030_2 || 849 pid == PCI_PRODUCT_INTEL_WIFI_LINK_130_1 || 850 pid == PCI_PRODUCT_INTEL_WIFI_LINK_130_2 || 851 pid == PCI_PRODUCT_INTEL_WIFI_LINK_6230_1 || 852 pid == PCI_PRODUCT_INTEL_WIFI_LINK_6230_2 || 853 pid == PCI_PRODUCT_INTEL_WIFI_LINK_6235 || 854 pid == PCI_PRODUCT_INTEL_WIFI_LINK_6235_2) { 855 sc->fwname = "iwlwifi-6000g2b-6.ucode"; 856 ops->config_bt_coex = iwn_config_bt_coex_adv1; 857 } 858 /* 859 * This covers: 860 * PCI_PRODUCT_INTEL_WIFI_LINK_6005_2X2_1 861 * PCI_PRODUCT_INTEL_WIFI_LINK_6005_2X2_2 862 */ 863 else 864 sc->fwname = "iwlwifi-6000g2a-6.ucode"; 865 break; 866 case IWN_HW_REV_TYPE_2030: 867 sc->limits = &iwn2030_sensitivity_limits; 868 sc->fwname = "iwlwifi-2030-6.ucode"; 869 ops->config_bt_coex = iwn_config_bt_coex_adv2; 870 break; 871 case IWN_HW_REV_TYPE_2000: 872 sc->limits = &iwn2000_sensitivity_limits; 873 sc->fwname = "iwlwifi-2000-6.ucode"; 874 break; 875 case IWN_HW_REV_TYPE_135: 876 sc->limits = &iwn2000_sensitivity_limits; 877 sc->fwname = "iwlwifi-135-6.ucode"; 878 ops->config_bt_coex = iwn_config_bt_coex_adv2; 879 break; 880 case IWN_HW_REV_TYPE_105: 881 sc->limits = &iwn2000_sensitivity_limits; 882 sc->fwname = "iwlwifi-105-6.ucode"; 883 break; 884 default: 885 aprint_normal(": adapter type %d not supported\n", sc->hw_type); 886 return ENOTSUP; 887 } 888 return 0; 889 } 890 891 /* 892 * Attach the interface to 802.11 radiotap. 893 */ 894 static void 895 iwn_radiotap_attach(struct iwn_softc *sc) 896 { 897 struct ifnet *ifp = sc->sc_ic.ic_ifp; 898 899 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 900 sizeof (struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN, 901 &sc->sc_drvbpf); 902 903 sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 904 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 905 sc->sc_rxtap.wr_ihdr.it_present = htole32(IWN_RX_RADIOTAP_PRESENT); 906 907 sc->sc_txtap_len = sizeof sc->sc_txtapu; 908 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 909 sc->sc_txtap.wt_ihdr.it_present = htole32(IWN_TX_RADIOTAP_PRESENT); 910 } 911 912 static int 913 iwn_detach(device_t self, int flags __unused) 914 { 915 struct iwn_softc *sc = device_private(self); 916 struct ifnet *ifp = sc->sc_ic.ic_ifp; 917 int qid; 918 919 if (!(sc->sc_flags & IWN_FLAG_ATTACHED)) 920 return 0; 921 922 callout_stop(&sc->calib_to); 923 924 /* Uninstall interrupt handler. */ 925 if (sc->sc_ih != NULL) 926 pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 927 if (sc->sc_pihp != NULL) 928 pci_intr_release(sc->sc_pct, sc->sc_pihp, 1); 929 if (sc->sc_soft_ih != NULL) 930 softint_disestablish(sc->sc_soft_ih); 931 932 /* Free DMA resources. */ 933 iwn_free_rx_ring(sc, &sc->rxq); 934 for (qid = 0; qid < sc->ntxqs; qid++) 935 iwn_free_tx_ring(sc, &sc->txq[qid]); 936 #ifdef IWN_USE_RBUF 937 iwn_free_rpool(sc); 938 #endif 939 iwn_free_sched(sc); 940 iwn_free_kw(sc); 941 if (sc->ict != NULL) 942 iwn_free_ict(sc); 943 iwn_free_fwmem(sc); 944 945 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 946 947 ieee80211_ifdetach(&sc->sc_ic); 948 if_detach(ifp); 949 950 return 0; 951 } 952 953 #if 0 954 /* 955 * XXX Investigate if clearing the PCI retry timeout could eliminate 956 * the repeated scan calls. Also the calls to if_init and if_start 957 * are similar to the effect of adding the call to ifioctl_common . 958 */ 959 static void 960 iwn_power(int why, void *arg) 961 { 962 struct iwn_softc *sc = arg; 963 struct ifnet *ifp; 964 pcireg_t reg; 965 int s; 966 967 if (why != PWR_RESUME) 968 return; 969 970 /* Clear device-specific "PCI retry timeout" register (41h). */ 971 reg = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 972 if (reg & 0xff00) 973 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, reg & ~0xff00); 974 975 s = splnet(); 976 ifp = &sc->sc_ic.ic_if; 977 if (ifp->if_flags & IFF_UP) { 978 if_init(ifp); 979 if (ifp->if_flags & IFF_RUNNING) 980 ifp->if_start(ifp); 981 } 982 splx(s); 983 } 984 #endif 985 986 static bool 987 iwn_resume(device_t dv, const pmf_qual_t *qual) 988 { 989 return true; 990 } 991 992 static int 993 iwn_nic_lock(struct iwn_softc *sc) 994 { 995 int ntries; 996 997 /* Request exclusive access to NIC. */ 998 IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ); 999 1000 /* Spin until we actually get the lock. */ 1001 for (ntries = 0; ntries < 1000; ntries++) { 1002 if ((IWN_READ(sc, IWN_GP_CNTRL) & 1003 (IWN_GP_CNTRL_MAC_ACCESS_ENA | IWN_GP_CNTRL_SLEEP)) == 1004 IWN_GP_CNTRL_MAC_ACCESS_ENA) 1005 return 0; 1006 DELAY(10); 1007 } 1008 return ETIMEDOUT; 1009 } 1010 1011 static __inline void 1012 iwn_nic_unlock(struct iwn_softc *sc) 1013 { 1014 IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_MAC_ACCESS_REQ); 1015 } 1016 1017 static __inline uint32_t 1018 iwn_prph_read(struct iwn_softc *sc, uint32_t addr) 1019 { 1020 IWN_WRITE(sc, IWN_PRPH_RADDR, IWN_PRPH_DWORD | addr); 1021 IWN_BARRIER_READ_WRITE(sc); 1022 return IWN_READ(sc, IWN_PRPH_RDATA); 1023 } 1024 1025 static __inline void 1026 iwn_prph_write(struct iwn_softc *sc, uint32_t addr, uint32_t data) 1027 { 1028 IWN_WRITE(sc, IWN_PRPH_WADDR, IWN_PRPH_DWORD | addr); 1029 IWN_BARRIER_WRITE(sc); 1030 IWN_WRITE(sc, IWN_PRPH_WDATA, data); 1031 } 1032 1033 static __inline void 1034 iwn_prph_setbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask) 1035 { 1036 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) | mask); 1037 } 1038 1039 static __inline void 1040 iwn_prph_clrbits(struct iwn_softc *sc, uint32_t addr, uint32_t mask) 1041 { 1042 iwn_prph_write(sc, addr, iwn_prph_read(sc, addr) & ~mask); 1043 } 1044 1045 static __inline void 1046 iwn_prph_write_region_4(struct iwn_softc *sc, uint32_t addr, 1047 const uint32_t *data, int count) 1048 { 1049 for (; count > 0; count--, data++, addr += 4) 1050 iwn_prph_write(sc, addr, *data); 1051 } 1052 1053 static __inline uint32_t 1054 iwn_mem_read(struct iwn_softc *sc, uint32_t addr) 1055 { 1056 IWN_WRITE(sc, IWN_MEM_RADDR, addr); 1057 IWN_BARRIER_READ_WRITE(sc); 1058 return IWN_READ(sc, IWN_MEM_RDATA); 1059 } 1060 1061 static __inline void 1062 iwn_mem_write(struct iwn_softc *sc, uint32_t addr, uint32_t data) 1063 { 1064 IWN_WRITE(sc, IWN_MEM_WADDR, addr); 1065 IWN_BARRIER_WRITE(sc); 1066 IWN_WRITE(sc, IWN_MEM_WDATA, data); 1067 } 1068 1069 #ifndef IEEE80211_NO_HT 1070 static __inline void 1071 iwn_mem_write_2(struct iwn_softc *sc, uint32_t addr, uint16_t data) 1072 { 1073 uint32_t tmp; 1074 1075 tmp = iwn_mem_read(sc, addr & ~3); 1076 if (addr & 3) 1077 tmp = (tmp & 0x0000ffff) | data << 16; 1078 else 1079 tmp = (tmp & 0xffff0000) | data; 1080 iwn_mem_write(sc, addr & ~3, tmp); 1081 } 1082 #endif 1083 1084 static __inline void 1085 iwn_mem_read_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t *data, 1086 int count) 1087 { 1088 for (; count > 0; count--, addr += 4) 1089 *data++ = iwn_mem_read(sc, addr); 1090 } 1091 1092 static __inline void 1093 iwn_mem_set_region_4(struct iwn_softc *sc, uint32_t addr, uint32_t val, 1094 int count) 1095 { 1096 for (; count > 0; count--, addr += 4) 1097 iwn_mem_write(sc, addr, val); 1098 } 1099 1100 static int 1101 iwn_eeprom_lock(struct iwn_softc *sc) 1102 { 1103 int i, ntries; 1104 1105 for (i = 0; i < 100; i++) { 1106 /* Request exclusive access to EEPROM. */ 1107 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, 1108 IWN_HW_IF_CONFIG_EEPROM_LOCKED); 1109 1110 /* Spin until we actually get the lock. */ 1111 for (ntries = 0; ntries < 100; ntries++) { 1112 if (IWN_READ(sc, IWN_HW_IF_CONFIG) & 1113 IWN_HW_IF_CONFIG_EEPROM_LOCKED) 1114 return 0; 1115 DELAY(10); 1116 } 1117 } 1118 return ETIMEDOUT; 1119 } 1120 1121 static __inline void 1122 iwn_eeprom_unlock(struct iwn_softc *sc) 1123 { 1124 IWN_CLRBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_EEPROM_LOCKED); 1125 } 1126 1127 /* 1128 * Initialize access by host to One Time Programmable ROM. 1129 * NB: This kind of ROM can be found on 1000 or 6000 Series only. 1130 */ 1131 static int 1132 iwn_init_otprom(struct iwn_softc *sc) 1133 { 1134 uint16_t prev = 0, base, next; 1135 int count, error; 1136 1137 /* Wait for clock stabilization before accessing prph. */ 1138 if ((error = iwn_clock_wait(sc)) != 0) 1139 return error; 1140 1141 if ((error = iwn_nic_lock(sc)) != 0) 1142 return error; 1143 iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ); 1144 DELAY(5); 1145 iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_RESET_REQ); 1146 iwn_nic_unlock(sc); 1147 1148 /* Set auto clock gate disable bit for HW with OTP shadow RAM. */ 1149 if (sc->hw_type != IWN_HW_REV_TYPE_1000) { 1150 IWN_SETBITS(sc, IWN_DBG_LINK_PWR_MGMT, 1151 IWN_RESET_LINK_PWR_MGMT_DIS); 1152 } 1153 IWN_CLRBITS(sc, IWN_EEPROM_GP, IWN_EEPROM_GP_IF_OWNER); 1154 /* Clear ECC status. */ 1155 IWN_SETBITS(sc, IWN_OTP_GP, 1156 IWN_OTP_GP_ECC_CORR_STTS | IWN_OTP_GP_ECC_UNCORR_STTS); 1157 1158 /* 1159 * Find the block before last block (contains the EEPROM image) 1160 * for HW without OTP shadow RAM. 1161 */ 1162 if (sc->hw_type == IWN_HW_REV_TYPE_1000) { 1163 /* Switch to absolute addressing mode. */ 1164 IWN_CLRBITS(sc, IWN_OTP_GP, IWN_OTP_GP_RELATIVE_ACCESS); 1165 base = 0; 1166 for (count = 0; count < IWN1000_OTP_NBLOCKS; count++) { 1167 error = iwn_read_prom_data(sc, base, &next, 2); 1168 if (error != 0) 1169 return error; 1170 if (next == 0) /* End of linked-list. */ 1171 break; 1172 prev = base; 1173 base = le16toh(next); 1174 } 1175 if (count == 0 || count == IWN1000_OTP_NBLOCKS) 1176 return EIO; 1177 /* Skip "next" word. */ 1178 sc->prom_base = prev + 1; 1179 } 1180 return 0; 1181 } 1182 1183 static int 1184 iwn_read_prom_data(struct iwn_softc *sc, uint32_t addr, void *data, int count) 1185 { 1186 uint8_t *out = data; 1187 uint32_t val, tmp; 1188 int ntries; 1189 1190 addr += sc->prom_base; 1191 for (; count > 0; count -= 2, addr++) { 1192 IWN_WRITE(sc, IWN_EEPROM, addr << 2); 1193 for (ntries = 0; ntries < 10; ntries++) { 1194 val = IWN_READ(sc, IWN_EEPROM); 1195 if (val & IWN_EEPROM_READ_VALID) 1196 break; 1197 DELAY(5); 1198 } 1199 if (ntries == 10) { 1200 aprint_error_dev(sc->sc_dev, 1201 "timeout reading ROM at 0x%x\n", addr); 1202 return ETIMEDOUT; 1203 } 1204 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) { 1205 /* OTPROM, check for ECC errors. */ 1206 tmp = IWN_READ(sc, IWN_OTP_GP); 1207 if (tmp & IWN_OTP_GP_ECC_UNCORR_STTS) { 1208 aprint_error_dev(sc->sc_dev, 1209 "OTPROM ECC error at 0x%x\n", addr); 1210 return EIO; 1211 } 1212 if (tmp & IWN_OTP_GP_ECC_CORR_STTS) { 1213 /* Correctable ECC error, clear bit. */ 1214 IWN_SETBITS(sc, IWN_OTP_GP, 1215 IWN_OTP_GP_ECC_CORR_STTS); 1216 } 1217 } 1218 *out++ = val >> 16; 1219 if (count > 1) 1220 *out++ = val >> 24; 1221 } 1222 return 0; 1223 } 1224 1225 static int 1226 iwn_dma_contig_alloc(bus_dma_tag_t tag, struct iwn_dma_info *dma, void **kvap, 1227 bus_size_t size, bus_size_t alignment) 1228 { 1229 int nsegs, error; 1230 1231 dma->tag = tag; 1232 dma->size = size; 1233 1234 error = bus_dmamap_create(tag, size, 1, size, 0, BUS_DMA_NOWAIT, 1235 &dma->map); 1236 if (error != 0) 1237 goto fail; 1238 1239 error = bus_dmamem_alloc(tag, size, alignment, 0, &dma->seg, 1, &nsegs, 1240 BUS_DMA_NOWAIT); /* XXX OpenBSD adds BUS_DMA_ZERO */ 1241 if (error != 0) 1242 goto fail; 1243 1244 error = bus_dmamem_map(tag, &dma->seg, 1, size, &dma->vaddr, 1245 BUS_DMA_NOWAIT); /* XXX OpenBSD adds BUS_DMA_COHERENT */ 1246 if (error != 0) 1247 goto fail; 1248 1249 error = bus_dmamap_load(tag, dma->map, dma->vaddr, size, NULL, 1250 BUS_DMA_NOWAIT); 1251 if (error != 0) 1252 goto fail; 1253 1254 /* XXX Presumably needed because of missing BUS_DMA_ZERO, above. */ 1255 memset(dma->vaddr, 0, size); 1256 bus_dmamap_sync(tag, dma->map, 0, size, BUS_DMASYNC_PREWRITE); 1257 1258 dma->paddr = dma->map->dm_segs[0].ds_addr; 1259 if (kvap != NULL) 1260 *kvap = dma->vaddr; 1261 1262 return 0; 1263 1264 fail: iwn_dma_contig_free(dma); 1265 return error; 1266 } 1267 1268 static void 1269 iwn_dma_contig_free(struct iwn_dma_info *dma) 1270 { 1271 if (dma->map != NULL) { 1272 if (dma->vaddr != NULL) { 1273 bus_dmamap_sync(dma->tag, dma->map, 0, dma->size, 1274 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1275 bus_dmamap_unload(dma->tag, dma->map); 1276 bus_dmamem_unmap(dma->tag, dma->vaddr, dma->size); 1277 bus_dmamem_free(dma->tag, &dma->seg, 1); 1278 dma->vaddr = NULL; 1279 } 1280 bus_dmamap_destroy(dma->tag, dma->map); 1281 dma->map = NULL; 1282 } 1283 } 1284 1285 static int 1286 iwn_alloc_sched(struct iwn_softc *sc) 1287 { 1288 /* TX scheduler rings must be aligned on a 1KB boundary. */ 1289 return iwn_dma_contig_alloc(sc->sc_dmat, &sc->sched_dma, 1290 (void **)&sc->sched, sc->schedsz, 1024); 1291 } 1292 1293 static void 1294 iwn_free_sched(struct iwn_softc *sc) 1295 { 1296 iwn_dma_contig_free(&sc->sched_dma); 1297 } 1298 1299 static int 1300 iwn_alloc_kw(struct iwn_softc *sc) 1301 { 1302 /* "Keep Warm" page must be aligned on a 4KB boundary. */ 1303 return iwn_dma_contig_alloc(sc->sc_dmat, &sc->kw_dma, NULL, 4096, 1304 4096); 1305 } 1306 1307 static void 1308 iwn_free_kw(struct iwn_softc *sc) 1309 { 1310 iwn_dma_contig_free(&sc->kw_dma); 1311 } 1312 1313 static int 1314 iwn_alloc_ict(struct iwn_softc *sc) 1315 { 1316 /* ICT table must be aligned on a 4KB boundary. */ 1317 return iwn_dma_contig_alloc(sc->sc_dmat, &sc->ict_dma, 1318 (void **)&sc->ict, IWN_ICT_SIZE, 4096); 1319 } 1320 1321 static void 1322 iwn_free_ict(struct iwn_softc *sc) 1323 { 1324 iwn_dma_contig_free(&sc->ict_dma); 1325 } 1326 1327 static int 1328 iwn_alloc_fwmem(struct iwn_softc *sc) 1329 { 1330 /* Must be aligned on a 16-byte boundary. */ 1331 return iwn_dma_contig_alloc(sc->sc_dmat, &sc->fw_dma, NULL, 1332 sc->fwsz, 16); 1333 } 1334 1335 static void 1336 iwn_free_fwmem(struct iwn_softc *sc) 1337 { 1338 iwn_dma_contig_free(&sc->fw_dma); 1339 } 1340 1341 static int 1342 iwn_alloc_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 1343 { 1344 bus_size_t size; 1345 int i, error; 1346 1347 ring->cur = 0; 1348 1349 /* Allocate RX descriptors (256-byte aligned). */ 1350 size = IWN_RX_RING_COUNT * sizeof (uint32_t); 1351 error = iwn_dma_contig_alloc(sc->sc_dmat, &ring->desc_dma, 1352 (void **)&ring->desc, size, 256); 1353 if (error != 0) { 1354 aprint_error_dev(sc->sc_dev, 1355 "could not allocate RX ring DMA memory\n"); 1356 goto fail; 1357 } 1358 1359 /* Allocate RX status area (16-byte aligned). */ 1360 error = iwn_dma_contig_alloc(sc->sc_dmat, &ring->stat_dma, 1361 (void **)&ring->stat, sizeof (struct iwn_rx_status), 16); 1362 if (error != 0) { 1363 aprint_error_dev(sc->sc_dev, 1364 "could not allocate RX status DMA memory\n"); 1365 goto fail; 1366 } 1367 1368 /* 1369 * Allocate and map RX buffers. 1370 */ 1371 for (i = 0; i < IWN_RX_RING_COUNT; i++) { 1372 struct iwn_rx_data *data = &ring->data[i]; 1373 1374 error = bus_dmamap_create(sc->sc_dmat, IWN_RBUF_SIZE, 1, 1375 IWN_RBUF_SIZE, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 1376 &data->map); 1377 if (error != 0) { 1378 aprint_error_dev(sc->sc_dev, 1379 "could not create RX buf DMA map\n"); 1380 goto fail; 1381 } 1382 1383 data->m = MCLGETIalt(sc, M_DONTWAIT, NULL, IWN_RBUF_SIZE); 1384 if (data->m == NULL) { 1385 aprint_error_dev(sc->sc_dev, 1386 "could not allocate RX mbuf\n"); 1387 error = ENOBUFS; 1388 goto fail; 1389 } 1390 1391 error = bus_dmamap_load(sc->sc_dmat, data->map, 1392 mtod(data->m, void *), IWN_RBUF_SIZE, NULL, 1393 BUS_DMA_NOWAIT | BUS_DMA_READ); 1394 if (error != 0) { 1395 aprint_error_dev(sc->sc_dev, 1396 "can't not map mbuf (error %d)\n", error); 1397 goto fail; 1398 } 1399 1400 /* Set physical address of RX buffer (256-byte aligned). */ 1401 ring->desc[i] = htole32(data->map->dm_segs[0].ds_addr >> 8); 1402 } 1403 1404 bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, 0, size, 1405 BUS_DMASYNC_PREWRITE); 1406 1407 return 0; 1408 1409 fail: iwn_free_rx_ring(sc, ring); 1410 return error; 1411 } 1412 1413 static void 1414 iwn_reset_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 1415 { 1416 int ntries; 1417 1418 if (iwn_nic_lock(sc) == 0) { 1419 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0); 1420 for (ntries = 0; ntries < 1000; ntries++) { 1421 if (IWN_READ(sc, IWN_FH_RX_STATUS) & 1422 IWN_FH_RX_STATUS_IDLE) 1423 break; 1424 DELAY(10); 1425 } 1426 iwn_nic_unlock(sc); 1427 } 1428 ring->cur = 0; 1429 sc->last_rx_valid = 0; 1430 } 1431 1432 static void 1433 iwn_free_rx_ring(struct iwn_softc *sc, struct iwn_rx_ring *ring) 1434 { 1435 int i; 1436 1437 iwn_dma_contig_free(&ring->desc_dma); 1438 iwn_dma_contig_free(&ring->stat_dma); 1439 1440 for (i = 0; i < IWN_RX_RING_COUNT; i++) { 1441 struct iwn_rx_data *data = &ring->data[i]; 1442 1443 if (data->m != NULL) { 1444 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1445 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1446 bus_dmamap_unload(sc->sc_dmat, data->map); 1447 m_freem(data->m); 1448 } 1449 if (data->map != NULL) 1450 bus_dmamap_destroy(sc->sc_dmat, data->map); 1451 } 1452 } 1453 1454 static int 1455 iwn_alloc_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring, int qid) 1456 { 1457 bus_addr_t paddr; 1458 bus_size_t size; 1459 int i, error; 1460 1461 ring->qid = qid; 1462 ring->queued = 0; 1463 ring->cur = 0; 1464 1465 /* Allocate TX descriptors (256-byte aligned). */ 1466 size = IWN_TX_RING_COUNT * sizeof (struct iwn_tx_desc); 1467 error = iwn_dma_contig_alloc(sc->sc_dmat, &ring->desc_dma, 1468 (void **)&ring->desc, size, 256); 1469 if (error != 0) { 1470 aprint_error_dev(sc->sc_dev, 1471 "could not allocate TX ring DMA memory\n"); 1472 goto fail; 1473 } 1474 /* 1475 * We only use rings 0 through 4 (4 EDCA + cmd) so there is no need 1476 * to allocate commands space for other rings. 1477 * XXX Do we really need to allocate descriptors for other rings? 1478 */ 1479 if (qid > 4) 1480 return 0; 1481 1482 size = IWN_TX_RING_COUNT * sizeof (struct iwn_tx_cmd); 1483 error = iwn_dma_contig_alloc(sc->sc_dmat, &ring->cmd_dma, 1484 (void **)&ring->cmd, size, 4); 1485 if (error != 0) { 1486 aprint_error_dev(sc->sc_dev, 1487 "could not allocate TX cmd DMA memory\n"); 1488 goto fail; 1489 } 1490 1491 paddr = ring->cmd_dma.paddr; 1492 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 1493 struct iwn_tx_data *data = &ring->data[i]; 1494 1495 data->cmd_paddr = paddr; 1496 data->scratch_paddr = paddr + 12; 1497 paddr += sizeof (struct iwn_tx_cmd); 1498 1499 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1500 IWN_MAX_SCATTER - 1, MCLBYTES, 0, BUS_DMA_NOWAIT, 1501 &data->map); 1502 if (error != 0) { 1503 aprint_error_dev(sc->sc_dev, 1504 "could not create TX buf DMA map\n"); 1505 goto fail; 1506 } 1507 } 1508 return 0; 1509 1510 fail: iwn_free_tx_ring(sc, ring); 1511 return error; 1512 } 1513 1514 static void 1515 iwn_reset_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring) 1516 { 1517 int i; 1518 1519 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 1520 struct iwn_tx_data *data = &ring->data[i]; 1521 1522 if (data->m != NULL) { 1523 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1524 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1525 bus_dmamap_unload(sc->sc_dmat, data->map); 1526 m_freem(data->m); 1527 data->m = NULL; 1528 } 1529 } 1530 /* Clear TX descriptors. */ 1531 memset(ring->desc, 0, ring->desc_dma.size); 1532 bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, 0, 1533 ring->desc_dma.size, BUS_DMASYNC_PREWRITE); 1534 sc->qfullmsk &= ~(1 << ring->qid); 1535 ring->queued = 0; 1536 ring->cur = 0; 1537 } 1538 1539 static void 1540 iwn_free_tx_ring(struct iwn_softc *sc, struct iwn_tx_ring *ring) 1541 { 1542 int i; 1543 1544 iwn_dma_contig_free(&ring->desc_dma); 1545 iwn_dma_contig_free(&ring->cmd_dma); 1546 1547 for (i = 0; i < IWN_TX_RING_COUNT; i++) { 1548 struct iwn_tx_data *data = &ring->data[i]; 1549 1550 if (data->m != NULL) { 1551 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1552 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1553 bus_dmamap_unload(sc->sc_dmat, data->map); 1554 m_freem(data->m); 1555 } 1556 if (data->map != NULL) 1557 bus_dmamap_destroy(sc->sc_dmat, data->map); 1558 } 1559 } 1560 1561 static void 1562 iwn5000_ict_reset(struct iwn_softc *sc) 1563 { 1564 /* Disable interrupts. */ 1565 IWN_WRITE(sc, IWN_INT_MASK, 0); 1566 1567 /* Reset ICT table. */ 1568 memset(sc->ict, 0, IWN_ICT_SIZE); 1569 bus_dmamap_sync(sc->sc_dmat, sc->ict_dma.map, 0, IWN_ICT_SIZE, 1570 BUS_DMASYNC_PREWRITE); 1571 sc->ict_cur = 0; 1572 1573 /* Set physical address of ICT table (4KB aligned). */ 1574 DPRINTF(("enabling ICT\n")); 1575 IWN_WRITE(sc, IWN_DRAM_INT_TBL, IWN_DRAM_INT_TBL_ENABLE | 1576 IWN_DRAM_INT_TBL_WRAP_CHECK | sc->ict_dma.paddr >> 12); 1577 1578 /* Enable periodic RX interrupt. */ 1579 sc->int_mask |= IWN_INT_RX_PERIODIC; 1580 /* Switch to ICT interrupt mode in driver. */ 1581 sc->sc_flags |= IWN_FLAG_USE_ICT; 1582 1583 /* Re-enable interrupts. */ 1584 IWN_WRITE(sc, IWN_INT, 0xffffffff); 1585 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 1586 } 1587 1588 static int 1589 iwn_read_eeprom(struct iwn_softc *sc) 1590 { 1591 struct iwn_ops *ops = &sc->ops; 1592 struct ieee80211com *ic = &sc->sc_ic; 1593 uint16_t val; 1594 int error; 1595 1596 /* Check whether adapter has an EEPROM or an OTPROM. */ 1597 if (sc->hw_type >= IWN_HW_REV_TYPE_1000 && 1598 (IWN_READ(sc, IWN_OTP_GP) & IWN_OTP_GP_DEV_SEL_OTP)) 1599 sc->sc_flags |= IWN_FLAG_HAS_OTPROM; 1600 DPRINTF(("%s found\n", (sc->sc_flags & IWN_FLAG_HAS_OTPROM) ? 1601 "OTPROM" : "EEPROM")); 1602 1603 /* Adapter has to be powered on for EEPROM access to work. */ 1604 if ((error = iwn_apm_init(sc)) != 0) { 1605 aprint_error_dev(sc->sc_dev, 1606 "could not power ON adapter\n"); 1607 return error; 1608 } 1609 1610 if ((IWN_READ(sc, IWN_EEPROM_GP) & 0x7) == 0) { 1611 aprint_error_dev(sc->sc_dev, 1612 "bad ROM signature\n"); 1613 return EIO; 1614 } 1615 if ((error = iwn_eeprom_lock(sc)) != 0) { 1616 aprint_error_dev(sc->sc_dev, 1617 "could not lock ROM (error=%d)\n", error); 1618 return error; 1619 } 1620 if (sc->sc_flags & IWN_FLAG_HAS_OTPROM) { 1621 if ((error = iwn_init_otprom(sc)) != 0) { 1622 aprint_error_dev(sc->sc_dev, 1623 "could not initialize OTPROM\n"); 1624 return error; 1625 } 1626 } 1627 1628 iwn_read_prom_data(sc, IWN_EEPROM_SKU_CAP, &val, 2); 1629 DPRINTF(("SKU capabilities=0x%04x\n", le16toh(val))); 1630 /* Check if HT support is bonded out. */ 1631 if (val & htole16(IWN_EEPROM_SKU_CAP_11N)) 1632 sc->sc_flags |= IWN_FLAG_HAS_11N; 1633 1634 iwn_read_prom_data(sc, IWN_EEPROM_RFCFG, &val, 2); 1635 sc->rfcfg = le16toh(val); 1636 DPRINTF(("radio config=0x%04x\n", sc->rfcfg)); 1637 /* Read Tx/Rx chains from ROM unless it's known to be broken. */ 1638 if (sc->txchainmask == 0) 1639 sc->txchainmask = IWN_RFCFG_TXANTMSK(sc->rfcfg); 1640 if (sc->rxchainmask == 0) 1641 sc->rxchainmask = IWN_RFCFG_RXANTMSK(sc->rfcfg); 1642 1643 /* Read MAC address. */ 1644 iwn_read_prom_data(sc, IWN_EEPROM_MAC, ic->ic_myaddr, ETHER_ADDR_LEN); 1645 1646 /* Read adapter-specific information from EEPROM. */ 1647 ops->read_eeprom(sc); 1648 1649 iwn_apm_stop(sc); /* Power OFF adapter. */ 1650 1651 iwn_eeprom_unlock(sc); 1652 return 0; 1653 } 1654 1655 static void 1656 iwn4965_read_eeprom(struct iwn_softc *sc) 1657 { 1658 uint32_t addr; 1659 uint16_t val; 1660 int i; 1661 1662 /* Read regulatory domain (4 ASCII characters). */ 1663 iwn_read_prom_data(sc, IWN4965_EEPROM_DOMAIN, sc->eeprom_domain, 4); 1664 1665 /* Read the list of authorized channels (20MHz ones only). */ 1666 for (i = 0; i < 5; i++) { 1667 addr = iwn4965_regulatory_bands[i]; 1668 iwn_read_eeprom_channels(sc, i, addr); 1669 } 1670 1671 /* Read maximum allowed TX power for 2GHz and 5GHz bands. */ 1672 iwn_read_prom_data(sc, IWN4965_EEPROM_MAXPOW, &val, 2); 1673 sc->maxpwr2GHz = val & 0xff; 1674 sc->maxpwr5GHz = val >> 8; 1675 /* Check that EEPROM values are within valid range. */ 1676 if (sc->maxpwr5GHz < 20 || sc->maxpwr5GHz > 50) 1677 sc->maxpwr5GHz = 38; 1678 if (sc->maxpwr2GHz < 20 || sc->maxpwr2GHz > 50) 1679 sc->maxpwr2GHz = 38; 1680 DPRINTF(("maxpwr 2GHz=%d 5GHz=%d\n", sc->maxpwr2GHz, sc->maxpwr5GHz)); 1681 1682 /* Read samples for each TX power group. */ 1683 iwn_read_prom_data(sc, IWN4965_EEPROM_BANDS, sc->bands, 1684 sizeof sc->bands); 1685 1686 /* Read voltage at which samples were taken. */ 1687 iwn_read_prom_data(sc, IWN4965_EEPROM_VOLTAGE, &val, 2); 1688 sc->eeprom_voltage = (int16_t)le16toh(val); 1689 DPRINTF(("voltage=%d (in 0.3V)\n", sc->eeprom_voltage)); 1690 1691 #ifdef IWN_DEBUG 1692 /* Print samples. */ 1693 if (iwn_debug > 0) { 1694 for (i = 0; i < IWN_NBANDS; i++) 1695 iwn4965_print_power_group(sc, i); 1696 } 1697 #endif 1698 } 1699 1700 #ifdef IWN_DEBUG 1701 static void 1702 iwn4965_print_power_group(struct iwn_softc *sc, int i) 1703 { 1704 struct iwn4965_eeprom_band *band = &sc->bands[i]; 1705 struct iwn4965_eeprom_chan_samples *chans = band->chans; 1706 int j, c; 1707 1708 aprint_normal("===band %d===\n", i); 1709 aprint_normal("chan lo=%d, chan hi=%d\n", band->lo, band->hi); 1710 aprint_normal("chan1 num=%d\n", chans[0].num); 1711 for (c = 0; c < 2; c++) { 1712 for (j = 0; j < IWN_NSAMPLES; j++) { 1713 aprint_normal("chain %d, sample %d: temp=%d gain=%d " 1714 "power=%d pa_det=%d\n", c, j, 1715 chans[0].samples[c][j].temp, 1716 chans[0].samples[c][j].gain, 1717 chans[0].samples[c][j].power, 1718 chans[0].samples[c][j].pa_det); 1719 } 1720 } 1721 aprint_normal("chan2 num=%d\n", chans[1].num); 1722 for (c = 0; c < 2; c++) { 1723 for (j = 0; j < IWN_NSAMPLES; j++) { 1724 aprint_normal("chain %d, sample %d: temp=%d gain=%d " 1725 "power=%d pa_det=%d\n", c, j, 1726 chans[1].samples[c][j].temp, 1727 chans[1].samples[c][j].gain, 1728 chans[1].samples[c][j].power, 1729 chans[1].samples[c][j].pa_det); 1730 } 1731 } 1732 } 1733 #endif 1734 1735 static void 1736 iwn5000_read_eeprom(struct iwn_softc *sc) 1737 { 1738 struct iwn5000_eeprom_calib_hdr hdr; 1739 int32_t volt; 1740 uint32_t base, addr; 1741 uint16_t val; 1742 int i; 1743 1744 /* Read regulatory domain (4 ASCII characters). */ 1745 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2); 1746 base = le16toh(val); 1747 iwn_read_prom_data(sc, base + IWN5000_EEPROM_DOMAIN, 1748 sc->eeprom_domain, 4); 1749 1750 /* Read the list of authorized channels (20MHz ones only). */ 1751 for (i = 0; i < 5; i++) { 1752 addr = base + iwn5000_regulatory_bands[i]; 1753 iwn_read_eeprom_channels(sc, i, addr); 1754 } 1755 1756 /* Read enhanced TX power information for 6000 Series. */ 1757 if (sc->hw_type >= IWN_HW_REV_TYPE_6000) 1758 iwn_read_eeprom_enhinfo(sc); 1759 1760 iwn_read_prom_data(sc, IWN5000_EEPROM_CAL, &val, 2); 1761 base = le16toh(val); 1762 iwn_read_prom_data(sc, base, &hdr, sizeof hdr); 1763 DPRINTF(("calib version=%u pa type=%u voltage=%u\n", 1764 hdr.version, hdr.pa_type, le16toh(hdr.volt))); 1765 sc->calib_ver = hdr.version; 1766 1767 if (sc->hw_type == IWN_HW_REV_TYPE_2030 || 1768 sc->hw_type == IWN_HW_REV_TYPE_2000 || 1769 sc->hw_type == IWN_HW_REV_TYPE_135 || 1770 sc->hw_type == IWN_HW_REV_TYPE_105) { 1771 sc->eeprom_voltage = le16toh(hdr.volt); 1772 iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2); 1773 sc->eeprom_temp = le16toh(val); 1774 iwn_read_prom_data(sc, base + IWN2000_EEPROM_RAWTEMP, &val, 2); 1775 sc->eeprom_rawtemp = le16toh(val); 1776 } 1777 1778 if (sc->hw_type == IWN_HW_REV_TYPE_5150) { 1779 /* Compute temperature offset. */ 1780 iwn_read_prom_data(sc, base + IWN5000_EEPROM_TEMP, &val, 2); 1781 sc->eeprom_temp = le16toh(val); 1782 iwn_read_prom_data(sc, base + IWN5000_EEPROM_VOLT, &val, 2); 1783 volt = le16toh(val); 1784 sc->temp_off = sc->eeprom_temp - (volt / -5); 1785 DPRINTF(("temp=%d volt=%d offset=%dK\n", 1786 sc->eeprom_temp, volt, sc->temp_off)); 1787 } else { 1788 /* Read crystal calibration. */ 1789 iwn_read_prom_data(sc, base + IWN5000_EEPROM_CRYSTAL, 1790 &sc->eeprom_crystal, sizeof (uint32_t)); 1791 DPRINTF(("crystal calibration 0x%08x\n", 1792 le32toh(sc->eeprom_crystal))); 1793 } 1794 } 1795 1796 static void 1797 iwn_read_eeprom_channels(struct iwn_softc *sc, int n, uint32_t addr) 1798 { 1799 struct ieee80211com *ic = &sc->sc_ic; 1800 const struct iwn_chan_band *band = &iwn_bands[n]; 1801 struct iwn_eeprom_chan channels[IWN_MAX_CHAN_PER_BAND]; 1802 uint8_t chan; 1803 int i; 1804 1805 iwn_read_prom_data(sc, addr, channels, 1806 band->nchan * sizeof (struct iwn_eeprom_chan)); 1807 1808 for (i = 0; i < band->nchan; i++) { 1809 if (!(channels[i].flags & IWN_EEPROM_CHAN_VALID)) 1810 continue; 1811 1812 chan = band->chan[i]; 1813 1814 if (n == 0) { /* 2GHz band */ 1815 ic->ic_channels[chan].ic_freq = 1816 ieee80211_ieee2mhz(chan, IEEE80211_CHAN_2GHZ); 1817 ic->ic_channels[chan].ic_flags = 1818 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 1819 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 1820 1821 } else { /* 5GHz band */ 1822 /* 1823 * Some adapters support channels 7, 8, 11 and 12 1824 * both in the 2GHz and 4.9GHz bands. 1825 * Because of limitations in our net80211 layer, 1826 * we don't support them in the 4.9GHz band. 1827 */ 1828 if (chan <= 14) 1829 continue; 1830 1831 ic->ic_channels[chan].ic_freq = 1832 ieee80211_ieee2mhz(chan, IEEE80211_CHAN_5GHZ); 1833 ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_A; 1834 /* We have at least one valid 5GHz channel. */ 1835 sc->sc_flags |= IWN_FLAG_HAS_5GHZ; 1836 } 1837 1838 /* Is active scan allowed on this channel? */ 1839 if (!(channels[i].flags & IWN_EEPROM_CHAN_ACTIVE)) { 1840 ic->ic_channels[chan].ic_flags |= 1841 IEEE80211_CHAN_PASSIVE; 1842 } 1843 1844 /* Save maximum allowed TX power for this channel. */ 1845 sc->maxpwr[chan] = channels[i].maxpwr; 1846 1847 DPRINTF(("adding chan %d flags=0x%x maxpwr=%d\n", 1848 chan, channels[i].flags, sc->maxpwr[chan])); 1849 } 1850 } 1851 1852 static void 1853 iwn_read_eeprom_enhinfo(struct iwn_softc *sc) 1854 { 1855 struct iwn_eeprom_enhinfo enhinfo[35]; 1856 uint16_t val, base; 1857 int8_t maxpwr; 1858 uint8_t flags; 1859 int i; 1860 1861 iwn_read_prom_data(sc, IWN5000_EEPROM_REG, &val, 2); 1862 base = le16toh(val); 1863 iwn_read_prom_data(sc, base + IWN6000_EEPROM_ENHINFO, 1864 enhinfo, sizeof enhinfo); 1865 1866 memset(sc->enh_maxpwr, 0, sizeof sc->enh_maxpwr); 1867 for (i = 0; i < __arraycount(enhinfo); i++) { 1868 flags = enhinfo[i].flags; 1869 if (!(flags & IWN_ENHINFO_VALID)) 1870 continue; /* Skip invalid entries. */ 1871 1872 maxpwr = 0; 1873 if (sc->txchainmask & IWN_ANT_A) 1874 maxpwr = MAX(maxpwr, enhinfo[i].chain[0]); 1875 if (sc->txchainmask & IWN_ANT_B) 1876 maxpwr = MAX(maxpwr, enhinfo[i].chain[1]); 1877 if (sc->txchainmask & IWN_ANT_C) 1878 maxpwr = MAX(maxpwr, enhinfo[i].chain[2]); 1879 if (sc->ntxchains == 2) 1880 maxpwr = MAX(maxpwr, enhinfo[i].mimo2); 1881 else if (sc->ntxchains == 3) 1882 maxpwr = MAX(maxpwr, enhinfo[i].mimo3); 1883 maxpwr /= 2; /* Convert half-dBm to dBm. */ 1884 1885 DPRINTF(("enhinfo %d, maxpwr=%d\n", i, maxpwr)); 1886 sc->enh_maxpwr[i] = maxpwr; 1887 } 1888 } 1889 1890 static struct ieee80211_node * 1891 iwn_node_alloc(struct ieee80211_node_table *ic __unused) 1892 { 1893 return malloc(sizeof (struct iwn_node), M_80211_NODE, M_NOWAIT | M_ZERO); 1894 } 1895 1896 static void 1897 iwn_newassoc(struct ieee80211_node *ni, int isnew) 1898 { 1899 struct iwn_softc *sc = ni->ni_ic->ic_ifp->if_softc; 1900 struct iwn_node *wn = (void *)ni; 1901 uint8_t rate; 1902 int ridx, i; 1903 1904 ieee80211_amrr_node_init(&sc->amrr, &wn->amn); 1905 /* Start at lowest available bit-rate, AMRR will raise. */ 1906 ni->ni_txrate = 0; 1907 1908 for (i = 0; i < ni->ni_rates.rs_nrates; i++) { 1909 rate = ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL; 1910 /* Map 802.11 rate to HW rate index. */ 1911 for (ridx = 0; ridx <= IWN_RIDX_MAX; ridx++) 1912 if (iwn_rates[ridx].rate == rate) 1913 break; 1914 wn->ridx[i] = ridx; 1915 } 1916 } 1917 1918 static int 1919 iwn_media_change(struct ifnet *ifp) 1920 { 1921 struct iwn_softc *sc = ifp->if_softc; 1922 struct ieee80211com *ic = &sc->sc_ic; 1923 uint8_t rate, ridx; 1924 int error; 1925 1926 error = ieee80211_media_change(ifp); 1927 if (error != ENETRESET) 1928 return error; 1929 1930 if (ic->ic_fixed_rate != -1) { 1931 rate = ic->ic_sup_rates[ic->ic_curmode]. 1932 rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; 1933 /* Map 802.11 rate to HW rate index. */ 1934 for (ridx = 0; ridx <= IWN_RIDX_MAX; ridx++) 1935 if (iwn_rates[ridx].rate == rate) 1936 break; 1937 sc->fixed_ridx = ridx; 1938 } 1939 1940 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1941 (IFF_UP | IFF_RUNNING)) { 1942 iwn_stop(ifp, 0); 1943 error = iwn_init(ifp); 1944 } 1945 return error; 1946 } 1947 1948 static int 1949 iwn_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1950 { 1951 struct ifnet *ifp = ic->ic_ifp; 1952 struct iwn_softc *sc = ifp->if_softc; 1953 int error; 1954 1955 callout_stop(&sc->calib_to); 1956 1957 switch (nstate) { 1958 case IEEE80211_S_SCAN: 1959 /* XXX Do not abort a running scan. */ 1960 if (sc->sc_flags & IWN_FLAG_SCANNING) { 1961 if (ic->ic_state != nstate) 1962 aprint_debug_dev(sc->sc_dev, "scan request(%d) " 1963 "while scanning(%d) ignored\n", nstate, 1964 ic->ic_state); 1965 break; 1966 } 1967 1968 /* XXX Not sure if call and flags are needed. */ 1969 ieee80211_node_table_reset(&ic->ic_scan); 1970 ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 1971 sc->sc_flags |= IWN_FLAG_SCANNING_2GHZ; 1972 1973 /* Make the link LED blink while we're scanning. */ 1974 iwn_set_led(sc, IWN_LED_LINK, 10, 10); 1975 1976 if ((error = iwn_scan(sc, IEEE80211_CHAN_2GHZ)) != 0) { 1977 aprint_error_dev(sc->sc_dev, 1978 "could not initiate scan\n"); 1979 return error; 1980 } 1981 ic->ic_state = nstate; 1982 return 0; 1983 1984 case IEEE80211_S_ASSOC: 1985 if (ic->ic_state != IEEE80211_S_RUN) 1986 break; 1987 /* FALLTHROUGH */ 1988 case IEEE80211_S_AUTH: 1989 /* Reset state to handle reassociations correctly. */ 1990 sc->rxon.associd = 0; 1991 sc->rxon.filter &= ~htole32(IWN_FILTER_BSS); 1992 sc->calib.state = IWN_CALIB_STATE_INIT; 1993 1994 /* Wait until we hear a beacon before we transmit */ 1995 if (IEEE80211_IS_CHAN_PASSIVE(ic->ic_curchan)) 1996 sc->sc_beacon_wait = 1; 1997 1998 if ((error = iwn_auth(sc)) != 0) { 1999 aprint_error_dev(sc->sc_dev, 2000 "could not move to auth state\n"); 2001 return error; 2002 } 2003 break; 2004 2005 case IEEE80211_S_RUN: 2006 /* 2007 * RUN -> RUN transition; Just restart timers. 2008 */ 2009 if (ic->ic_state == IEEE80211_S_RUN) { 2010 sc->calib_cnt = 0; 2011 break; 2012 } 2013 2014 /* Wait until we hear a beacon before we transmit */ 2015 if (IEEE80211_IS_CHAN_PASSIVE(ic->ic_curchan)) 2016 sc->sc_beacon_wait = 1; 2017 2018 if ((error = iwn_run(sc)) != 0) { 2019 aprint_error_dev(sc->sc_dev, 2020 "could not move to run state\n"); 2021 return error; 2022 } 2023 break; 2024 2025 case IEEE80211_S_INIT: 2026 sc->sc_flags &= ~IWN_FLAG_SCANNING; 2027 sc->calib.state = IWN_CALIB_STATE_INIT; 2028 /* 2029 * Purge the xmit queue so we don't have old frames 2030 * during a new association attempt. 2031 */ 2032 sc->sc_beacon_wait = 0; 2033 ifp->if_flags &= ~IFF_OACTIVE; 2034 iwn_start(ifp); 2035 break; 2036 } 2037 2038 return sc->sc_newstate(ic, nstate, arg); 2039 } 2040 2041 static void 2042 iwn_iter_func(void *arg, struct ieee80211_node *ni) 2043 { 2044 struct iwn_softc *sc = arg; 2045 struct iwn_node *wn = (struct iwn_node *)ni; 2046 2047 ieee80211_amrr_choose(&sc->amrr, ni, &wn->amn); 2048 } 2049 2050 static void 2051 iwn_calib_timeout(void *arg) 2052 { 2053 struct iwn_softc *sc = arg; 2054 struct ieee80211com *ic = &sc->sc_ic; 2055 int s; 2056 2057 s = splnet(); 2058 if (ic->ic_fixed_rate == -1) { 2059 if (ic->ic_opmode == IEEE80211_M_STA) 2060 iwn_iter_func(sc, ic->ic_bss); 2061 else 2062 ieee80211_iterate_nodes(&ic->ic_sta, iwn_iter_func, sc); 2063 } 2064 /* Force automatic TX power calibration every 60 secs. */ 2065 if (++sc->calib_cnt >= 120) { 2066 uint32_t flags = 0; 2067 2068 DPRINTF(("sending request for statistics\n")); 2069 (void)iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, 2070 sizeof flags, 1); 2071 sc->calib_cnt = 0; 2072 } 2073 splx(s); 2074 2075 /* Automatic rate control triggered every 500ms. */ 2076 callout_schedule(&sc->calib_to, mstohz(500)); 2077 } 2078 2079 /* 2080 * Process an RX_PHY firmware notification. This is usually immediately 2081 * followed by an MPDU_RX_DONE notification. 2082 */ 2083 static void 2084 iwn_rx_phy(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2085 struct iwn_rx_data *data) 2086 { 2087 struct iwn_rx_stat *stat = (struct iwn_rx_stat *)(desc + 1); 2088 2089 DPRINTFN(2, ("received PHY stats\n")); 2090 bus_dmamap_sync(sc->sc_dmat, data->map, sizeof (*desc), 2091 sizeof (*stat), BUS_DMASYNC_POSTREAD); 2092 2093 /* Save RX statistics, they will be used on MPDU_RX_DONE. */ 2094 memcpy(&sc->last_rx_stat, stat, sizeof (*stat)); 2095 sc->last_rx_valid = 1; 2096 } 2097 2098 /* 2099 * Process an RX_DONE (4965AGN only) or MPDU_RX_DONE firmware notification. 2100 * Each MPDU_RX_DONE notification must be preceded by an RX_PHY one. 2101 */ 2102 static void 2103 iwn_rx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2104 struct iwn_rx_data *data) 2105 { 2106 struct iwn_ops *ops = &sc->ops; 2107 struct ieee80211com *ic = &sc->sc_ic; 2108 struct ifnet *ifp = ic->ic_ifp; 2109 struct iwn_rx_ring *ring = &sc->rxq; 2110 struct ieee80211_frame *wh; 2111 struct ieee80211_node *ni; 2112 struct mbuf *m, *m1; 2113 struct iwn_rx_stat *stat; 2114 char *head; 2115 uint32_t flags; 2116 int error, len, rssi, s; 2117 2118 if (desc->type == IWN_MPDU_RX_DONE) { 2119 /* Check for prior RX_PHY notification. */ 2120 if (!sc->last_rx_valid) { 2121 DPRINTF(("missing RX_PHY\n")); 2122 return; 2123 } 2124 sc->last_rx_valid = 0; 2125 stat = &sc->last_rx_stat; 2126 } else 2127 stat = (struct iwn_rx_stat *)(desc + 1); 2128 2129 bus_dmamap_sync(sc->sc_dmat, data->map, 0, IWN_RBUF_SIZE, 2130 BUS_DMASYNC_POSTREAD); 2131 2132 if (stat->cfg_phy_len > IWN_STAT_MAXLEN) { 2133 aprint_error_dev(sc->sc_dev, 2134 "invalid RX statistic header\n"); 2135 return; 2136 } 2137 if (desc->type == IWN_MPDU_RX_DONE) { 2138 struct iwn_rx_mpdu *mpdu = (struct iwn_rx_mpdu *)(desc + 1); 2139 head = (char *)(mpdu + 1); 2140 len = le16toh(mpdu->len); 2141 } else { 2142 head = (char *)(stat + 1) + stat->cfg_phy_len; 2143 len = le16toh(stat->len); 2144 } 2145 2146 flags = le32toh(*(uint32_t *)(head + len)); 2147 2148 /* Discard frames with a bad FCS early. */ 2149 if ((flags & IWN_RX_NOERROR) != IWN_RX_NOERROR) { 2150 DPRINTFN(2, ("RX flags error %x\n", flags)); 2151 if_statinc(ifp, if_ierrors); 2152 return; 2153 } 2154 /* Discard frames that are too short. */ 2155 if (len < sizeof (*wh)) { 2156 DPRINTF(("frame too short: %d\n", len)); 2157 ic->ic_stats.is_rx_tooshort++; 2158 if_statinc(ifp, if_ierrors); 2159 return; 2160 } 2161 2162 m1 = MCLGETIalt(sc, M_DONTWAIT, NULL, IWN_RBUF_SIZE); 2163 if (m1 == NULL) { 2164 ic->ic_stats.is_rx_nobuf++; 2165 if_statinc(ifp, if_ierrors); 2166 return; 2167 } 2168 bus_dmamap_unload(sc->sc_dmat, data->map); 2169 2170 error = bus_dmamap_load(sc->sc_dmat, data->map, mtod(m1, void *), 2171 IWN_RBUF_SIZE, NULL, BUS_DMA_NOWAIT | BUS_DMA_READ); 2172 if (error != 0) { 2173 m_freem(m1); 2174 2175 /* Try to reload the old mbuf. */ 2176 error = bus_dmamap_load(sc->sc_dmat, data->map, 2177 mtod(data->m, void *), IWN_RBUF_SIZE, NULL, 2178 BUS_DMA_NOWAIT | BUS_DMA_READ); 2179 if (error != 0) { 2180 panic("%s: could not load old RX mbuf", 2181 device_xname(sc->sc_dev)); 2182 } 2183 /* Physical address may have changed. */ 2184 ring->desc[ring->cur] = 2185 htole32(data->map->dm_segs[0].ds_addr >> 8); 2186 bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, 2187 ring->cur * sizeof (uint32_t), sizeof (uint32_t), 2188 BUS_DMASYNC_PREWRITE); 2189 if_statinc(ifp, if_ierrors); 2190 return; 2191 } 2192 2193 m = data->m; 2194 data->m = m1; 2195 /* Update RX descriptor. */ 2196 ring->desc[ring->cur] = htole32(data->map->dm_segs[0].ds_addr >> 8); 2197 bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, 2198 ring->cur * sizeof (uint32_t), sizeof (uint32_t), 2199 BUS_DMASYNC_PREWRITE); 2200 2201 /* Finalize mbuf. */ 2202 m_set_rcvif(m, ifp); 2203 m->m_data = head; 2204 m->m_pkthdr.len = m->m_len = len; 2205 2206 s = splnet(); 2207 2208 /* Grab a reference to the source node. */ 2209 wh = mtod(m, struct ieee80211_frame *); 2210 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 2211 2212 /* XXX OpenBSD adds decryption here (see also comments in iwn_tx). */ 2213 /* NetBSD does decryption in ieee80211_input. */ 2214 2215 rssi = ops->get_rssi(stat); 2216 2217 /* XXX Added for NetBSD: scans never stop without it */ 2218 if (ic->ic_state == IEEE80211_S_SCAN) 2219 iwn_fix_channel(ic, m, stat); 2220 2221 if (sc->sc_drvbpf != NULL) { 2222 struct iwn_rx_radiotap_header *tap = &sc->sc_rxtap; 2223 2224 tap->wr_flags = 0; 2225 if (stat->flags & htole16(IWN_STAT_FLAG_SHPREAMBLE)) 2226 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 2227 tap->wr_chan_freq = 2228 htole16(ic->ic_channels[stat->chan].ic_freq); 2229 tap->wr_chan_flags = 2230 htole16(ic->ic_channels[stat->chan].ic_flags); 2231 tap->wr_dbm_antsignal = (int8_t)rssi; 2232 tap->wr_dbm_antnoise = (int8_t)sc->noise; 2233 tap->wr_tsft = stat->tstamp; 2234 switch (stat->rate) { 2235 /* CCK rates. */ 2236 case 10: tap->wr_rate = 2; break; 2237 case 20: tap->wr_rate = 4; break; 2238 case 55: tap->wr_rate = 11; break; 2239 case 110: tap->wr_rate = 22; break; 2240 /* OFDM rates. */ 2241 case 0xd: tap->wr_rate = 12; break; 2242 case 0xf: tap->wr_rate = 18; break; 2243 case 0x5: tap->wr_rate = 24; break; 2244 case 0x7: tap->wr_rate = 36; break; 2245 case 0x9: tap->wr_rate = 48; break; 2246 case 0xb: tap->wr_rate = 72; break; 2247 case 0x1: tap->wr_rate = 96; break; 2248 case 0x3: tap->wr_rate = 108; break; 2249 /* Unknown rate: should not happen. */ 2250 default: tap->wr_rate = 0; 2251 } 2252 2253 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m, BPF_D_IN); 2254 } 2255 2256 /* 2257 * If it's a beacon and we're waiting, then do the wakeup. 2258 */ 2259 if (sc->sc_beacon_wait) { 2260 uint8_t type, subtype; 2261 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2262 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 2263 /* 2264 * This assumes at this point we've received our own 2265 * beacon. 2266 */ 2267 if (type == IEEE80211_FC0_TYPE_MGT && 2268 subtype == IEEE80211_FC0_SUBTYPE_BEACON) { 2269 sc->sc_beacon_wait = 0; 2270 ifp->if_flags &= ~IFF_OACTIVE; 2271 iwn_start(ifp); 2272 } 2273 } 2274 2275 /* Send the frame to the 802.11 layer. */ 2276 ieee80211_input(ic, m, ni, rssi, 0); 2277 2278 /* Node is no longer needed. */ 2279 ieee80211_free_node(ni); 2280 2281 splx(s); 2282 } 2283 2284 #ifndef IEEE80211_NO_HT 2285 /* Process an incoming Compressed BlockAck. */ 2286 static void 2287 iwn_rx_compressed_ba(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2288 struct iwn_rx_data *data) 2289 { 2290 struct iwn_compressed_ba *ba = (struct iwn_compressed_ba *)(desc + 1); 2291 struct iwn_tx_ring *txq; 2292 2293 bus_dmamap_sync(sc->sc_dmat, data->map, sizeof (*desc), sizeof (*ba), 2294 BUS_DMASYNC_POSTREAD); 2295 2296 txq = &sc->txq[le16toh(ba->qid)]; 2297 /* XXX TBD */ 2298 } 2299 #endif 2300 2301 /* 2302 * Process a CALIBRATION_RESULT notification sent by the initialization 2303 * firmware on response to a CMD_CALIB_CONFIG command (5000 only). 2304 */ 2305 static void 2306 iwn5000_rx_calib_results(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2307 struct iwn_rx_data *data) 2308 { 2309 struct iwn_phy_calib *calib = (struct iwn_phy_calib *)(desc + 1); 2310 int len, idx = -1; 2311 2312 /* Runtime firmware should not send such a notification. */ 2313 if (sc->sc_flags & IWN_FLAG_CALIB_DONE) 2314 return; 2315 2316 len = (le32toh(desc->len) & 0x3fff) - 4; 2317 bus_dmamap_sync(sc->sc_dmat, data->map, sizeof (*desc), len, 2318 BUS_DMASYNC_POSTREAD); 2319 2320 switch (calib->code) { 2321 case IWN5000_PHY_CALIB_DC: 2322 if (sc->hw_type == IWN_HW_REV_TYPE_5150 || 2323 sc->hw_type == IWN_HW_REV_TYPE_2030 || 2324 sc->hw_type == IWN_HW_REV_TYPE_2000 || 2325 sc->hw_type == IWN_HW_REV_TYPE_135 || 2326 sc->hw_type == IWN_HW_REV_TYPE_105) 2327 idx = 0; 2328 break; 2329 case IWN5000_PHY_CALIB_LO: 2330 idx = 1; 2331 break; 2332 case IWN5000_PHY_CALIB_TX_IQ: 2333 idx = 2; 2334 break; 2335 case IWN5000_PHY_CALIB_TX_IQ_PERIODIC: 2336 if (sc->hw_type < IWN_HW_REV_TYPE_6000 && 2337 sc->hw_type != IWN_HW_REV_TYPE_5150) 2338 idx = 3; 2339 break; 2340 case IWN5000_PHY_CALIB_BASE_BAND: 2341 idx = 4; 2342 break; 2343 } 2344 if (idx == -1) /* Ignore other results. */ 2345 return; 2346 2347 /* Save calibration result. */ 2348 if (sc->calibcmd[idx].buf != NULL) 2349 free(sc->calibcmd[idx].buf, M_DEVBUF); 2350 sc->calibcmd[idx].buf = malloc(len, M_DEVBUF, M_NOWAIT); 2351 if (sc->calibcmd[idx].buf == NULL) { 2352 DPRINTF(("not enough memory for calibration result %d\n", 2353 calib->code)); 2354 return; 2355 } 2356 DPRINTF(("saving calibration result code=%d len=%d\n", 2357 calib->code, len)); 2358 sc->calibcmd[idx].len = len; 2359 memcpy(sc->calibcmd[idx].buf, calib, len); 2360 } 2361 2362 /* 2363 * Process an RX_STATISTICS or BEACON_STATISTICS firmware notification. 2364 * The latter is sent by the firmware after each received beacon. 2365 */ 2366 static void 2367 iwn_rx_statistics(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2368 struct iwn_rx_data *data) 2369 { 2370 struct iwn_ops *ops = &sc->ops; 2371 struct ieee80211com *ic = &sc->sc_ic; 2372 struct iwn_calib_state *calib = &sc->calib; 2373 struct iwn_stats *stats = (struct iwn_stats *)(desc + 1); 2374 int temp; 2375 2376 /* Ignore statistics received during a scan. */ 2377 if (ic->ic_state != IEEE80211_S_RUN) 2378 return; 2379 2380 bus_dmamap_sync(sc->sc_dmat, data->map, sizeof (*desc), 2381 sizeof (*stats), BUS_DMASYNC_POSTREAD); 2382 2383 DPRINTFN(3, ("received statistics (cmd=%d)\n", desc->type)); 2384 sc->calib_cnt = 0; /* Reset TX power calibration timeout. */ 2385 2386 /* Test if temperature has changed. */ 2387 if (stats->general.temp != sc->rawtemp) { 2388 /* Convert "raw" temperature to degC. */ 2389 sc->rawtemp = stats->general.temp; 2390 temp = ops->get_temperature(sc); 2391 DPRINTFN(2, ("temperature=%dC\n", temp)); 2392 2393 /* Update TX power if need be (4965AGN only). */ 2394 if (sc->hw_type == IWN_HW_REV_TYPE_4965) 2395 iwn4965_power_calibration(sc, temp); 2396 } 2397 2398 if (desc->type != IWN_BEACON_STATISTICS) 2399 return; /* Reply to a statistics request. */ 2400 2401 sc->noise = iwn_get_noise(&stats->rx.general); 2402 2403 /* Test that RSSI and noise are present in stats report. */ 2404 if (le32toh(stats->rx.general.flags) != 1) { 2405 DPRINTF(("received statistics without RSSI\n")); 2406 return; 2407 } 2408 2409 /* 2410 * XXX Differential gain calibration makes the 6005 firmware 2411 * crap out, so skip it for now. This effectively disables 2412 * sensitivity tuning as well. 2413 */ 2414 if (sc->hw_type == IWN_HW_REV_TYPE_6005) 2415 return; 2416 2417 if (calib->state == IWN_CALIB_STATE_ASSOC) 2418 iwn_collect_noise(sc, &stats->rx.general); 2419 else if (calib->state == IWN_CALIB_STATE_RUN) 2420 iwn_tune_sensitivity(sc, &stats->rx); 2421 } 2422 2423 /* 2424 * Process a TX_DONE firmware notification. Unfortunately, the 4965AGN 2425 * and 5000 adapters have different incompatible TX status formats. 2426 */ 2427 static void 2428 iwn4965_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2429 struct iwn_rx_data *data) 2430 { 2431 struct iwn4965_tx_stat *stat = (struct iwn4965_tx_stat *)(desc + 1); 2432 2433 bus_dmamap_sync(sc->sc_dmat, data->map, sizeof (*desc), 2434 sizeof (*stat), BUS_DMASYNC_POSTREAD); 2435 iwn_tx_done(sc, desc, stat->ackfailcnt, le32toh(stat->status) & 0xff); 2436 } 2437 2438 static void 2439 iwn5000_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, 2440 struct iwn_rx_data *data) 2441 { 2442 struct iwn5000_tx_stat *stat = (struct iwn5000_tx_stat *)(desc + 1); 2443 2444 #ifdef notyet 2445 /* Reset TX scheduler slot. */ 2446 iwn5000_reset_sched(sc, desc->qid & 0xf, desc->idx); 2447 #endif 2448 2449 bus_dmamap_sync(sc->sc_dmat, data->map, sizeof (*desc), 2450 sizeof (*stat), BUS_DMASYNC_POSTREAD); 2451 iwn_tx_done(sc, desc, stat->ackfailcnt, le16toh(stat->status) & 0xff); 2452 } 2453 2454 /* 2455 * Adapter-independent backend for TX_DONE firmware notifications. 2456 */ 2457 static void 2458 iwn_tx_done(struct iwn_softc *sc, struct iwn_rx_desc *desc, int ackfailcnt, 2459 uint8_t status) 2460 { 2461 struct ieee80211com *ic = &sc->sc_ic; 2462 struct ifnet *ifp = ic->ic_ifp; 2463 struct iwn_tx_ring *ring = &sc->txq[desc->qid & 0xf]; 2464 struct iwn_tx_data *data = &ring->data[desc->idx]; 2465 struct iwn_node *wn = (struct iwn_node *)data->ni; 2466 int s; 2467 2468 s = splnet(); 2469 2470 /* Update rate control statistics. */ 2471 wn->amn.amn_txcnt++; 2472 if (ackfailcnt > 0) 2473 wn->amn.amn_retrycnt++; 2474 2475 if (status != 1 && status != 2) 2476 if_statinc(ifp, if_oerrors); 2477 else 2478 if_statinc(ifp, if_opackets); 2479 2480 /* Unmap and free mbuf. */ 2481 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 2482 BUS_DMASYNC_POSTWRITE); 2483 bus_dmamap_unload(sc->sc_dmat, data->map); 2484 m_freem(data->m); 2485 data->m = NULL; 2486 ieee80211_free_node(data->ni); 2487 data->ni = NULL; 2488 2489 sc->sc_tx_timer = 0; 2490 if (--ring->queued < IWN_TX_RING_LOMARK) { 2491 sc->qfullmsk &= ~(1 << ring->qid); 2492 if (sc->qfullmsk == 0 && (ifp->if_flags & IFF_OACTIVE)) { 2493 ifp->if_flags &= ~IFF_OACTIVE; 2494 iwn_start(ifp); 2495 } 2496 } 2497 2498 splx(s); 2499 } 2500 2501 /* 2502 * Process a "command done" firmware notification. This is where we wakeup 2503 * processes waiting for a synchronous command completion. 2504 */ 2505 static void 2506 iwn_cmd_done(struct iwn_softc *sc, struct iwn_rx_desc *desc) 2507 { 2508 struct iwn_tx_ring *ring = &sc->txq[4]; 2509 struct iwn_tx_data *data; 2510 2511 if ((desc->qid & 0xf) != 4) 2512 return; /* Not a command ack. */ 2513 2514 data = &ring->data[desc->idx]; 2515 2516 /* If the command was mapped in an mbuf, free it. */ 2517 if (data->m != NULL) { 2518 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 2519 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 2520 bus_dmamap_unload(sc->sc_dmat, data->map); 2521 m_freem(data->m); 2522 data->m = NULL; 2523 } 2524 wakeup(&ring->desc[desc->idx]); 2525 } 2526 2527 /* 2528 * Process an INT_FH_RX or INT_SW_RX interrupt. 2529 */ 2530 static void 2531 iwn_notif_intr(struct iwn_softc *sc) 2532 { 2533 struct iwn_ops *ops = &sc->ops; 2534 struct ieee80211com *ic = &sc->sc_ic; 2535 struct ifnet *ifp = ic->ic_ifp; 2536 uint16_t hw; 2537 int s; 2538 2539 bus_dmamap_sync(sc->sc_dmat, sc->rxq.stat_dma.map, 2540 0, sc->rxq.stat_dma.size, BUS_DMASYNC_POSTREAD); 2541 2542 hw = le16toh(sc->rxq.stat->closed_count) & 0xfff; 2543 while (sc->rxq.cur != hw) { 2544 struct iwn_rx_data *data = &sc->rxq.data[sc->rxq.cur]; 2545 struct iwn_rx_desc *desc; 2546 2547 bus_dmamap_sync(sc->sc_dmat, data->map, 0, sizeof (*desc), 2548 BUS_DMASYNC_POSTREAD); 2549 desc = mtod(data->m, struct iwn_rx_desc *); 2550 2551 DPRINTFN(4, ("notification qid=%d idx=%d flags=%x type=%d\n", 2552 desc->qid & 0xf, desc->idx, desc->flags, desc->type)); 2553 2554 if (!(desc->qid & 0x80)) /* Reply to a command. */ 2555 iwn_cmd_done(sc, desc); 2556 2557 switch (desc->type) { 2558 case IWN_RX_PHY: 2559 iwn_rx_phy(sc, desc, data); 2560 break; 2561 2562 case IWN_RX_DONE: /* 4965AGN only. */ 2563 case IWN_MPDU_RX_DONE: 2564 /* An 802.11 frame has been received. */ 2565 iwn_rx_done(sc, desc, data); 2566 break; 2567 #ifndef IEEE80211_NO_HT 2568 case IWN_RX_COMPRESSED_BA: 2569 /* A Compressed BlockAck has been received. */ 2570 iwn_rx_compressed_ba(sc, desc, data); 2571 break; 2572 #endif 2573 case IWN_TX_DONE: 2574 /* An 802.11 frame has been transmitted. */ 2575 ops->tx_done(sc, desc, data); 2576 break; 2577 2578 case IWN_RX_STATISTICS: 2579 case IWN_BEACON_STATISTICS: 2580 iwn_rx_statistics(sc, desc, data); 2581 break; 2582 2583 case IWN_BEACON_MISSED: 2584 { 2585 struct iwn_beacon_missed *miss = 2586 (struct iwn_beacon_missed *)(desc + 1); 2587 2588 bus_dmamap_sync(sc->sc_dmat, data->map, sizeof (*desc), 2589 sizeof (*miss), BUS_DMASYNC_POSTREAD); 2590 /* 2591 * If more than 5 consecutive beacons are missed, 2592 * reinitialize the sensitivity state machine. 2593 */ 2594 DPRINTF(("beacons missed %d/%d\n", 2595 le32toh(miss->consecutive), le32toh(miss->total))); 2596 if (ic->ic_state == IEEE80211_S_RUN && 2597 le32toh(miss->consecutive) > 5) 2598 (void)iwn_init_sensitivity(sc); 2599 break; 2600 } 2601 case IWN_UC_READY: 2602 { 2603 struct iwn_ucode_info *uc = 2604 (struct iwn_ucode_info *)(desc + 1); 2605 2606 /* The microcontroller is ready. */ 2607 bus_dmamap_sync(sc->sc_dmat, data->map, sizeof (*desc), 2608 sizeof (*uc), BUS_DMASYNC_POSTREAD); 2609 DPRINTF(("microcode alive notification version=%d.%d " 2610 "subtype=%x alive=%x\n", uc->major, uc->minor, 2611 uc->subtype, le32toh(uc->valid))); 2612 2613 if (le32toh(uc->valid) != 1) { 2614 aprint_error_dev(sc->sc_dev, 2615 "microcontroller initialization " 2616 "failed\n"); 2617 break; 2618 } 2619 if (uc->subtype == IWN_UCODE_INIT) { 2620 /* Save microcontroller report. */ 2621 memcpy(&sc->ucode_info, uc, sizeof (*uc)); 2622 } 2623 /* Save the address of the error log in SRAM. */ 2624 sc->errptr = le32toh(uc->errptr); 2625 break; 2626 } 2627 case IWN_STATE_CHANGED: 2628 { 2629 uint32_t *status = (uint32_t *)(desc + 1); 2630 2631 /* Enabled/disabled notification. */ 2632 bus_dmamap_sync(sc->sc_dmat, data->map, sizeof (*desc), 2633 sizeof (*status), BUS_DMASYNC_POSTREAD); 2634 DPRINTF(("state changed to %x\n", le32toh(*status))); 2635 2636 if (le32toh(*status) & 1) { 2637 /* The radio button has to be pushed. */ 2638 aprint_error_dev(sc->sc_dev, 2639 "Radio transmitter is off\n"); 2640 /* Turn the interface down. */ 2641 s = splnet(); 2642 ifp->if_flags &= ~IFF_UP; 2643 iwn_stop(ifp, 1); 2644 splx(s); 2645 return; /* No further processing. */ 2646 } 2647 break; 2648 } 2649 case IWN_START_SCAN: 2650 { 2651 struct iwn_start_scan *scan = 2652 (struct iwn_start_scan *)(desc + 1); 2653 2654 bus_dmamap_sync(sc->sc_dmat, data->map, sizeof (*desc), 2655 sizeof (*scan), BUS_DMASYNC_POSTREAD); 2656 DPRINTFN(2, ("scanning channel %d status %x\n", 2657 scan->chan, le32toh(scan->status))); 2658 2659 /* Fix current channel. */ 2660 ic->ic_bss->ni_chan = &ic->ic_channels[scan->chan]; 2661 break; 2662 } 2663 case IWN_STOP_SCAN: 2664 { 2665 struct iwn_stop_scan *scan = 2666 (struct iwn_stop_scan *)(desc + 1); 2667 2668 bus_dmamap_sync(sc->sc_dmat, data->map, sizeof (*desc), 2669 sizeof (*scan), BUS_DMASYNC_POSTREAD); 2670 DPRINTF(("scan finished nchan=%d status=%d chan=%d\n", 2671 scan->nchan, scan->status, scan->chan)); 2672 2673 if (scan->status == 1 && scan->chan <= 14 && 2674 (sc->sc_flags & IWN_FLAG_HAS_5GHZ)) { 2675 /* 2676 * We just finished scanning 2GHz channels, 2677 * start scanning 5GHz ones. 2678 */ 2679 sc->sc_flags &= ~IWN_FLAG_SCANNING_2GHZ; 2680 sc->sc_flags |= IWN_FLAG_SCANNING_5GHZ; 2681 if (iwn_scan(sc, IEEE80211_CHAN_5GHZ) == 0) 2682 break; 2683 } 2684 sc->sc_flags &= ~IWN_FLAG_SCANNING; 2685 ieee80211_end_scan(ic); 2686 break; 2687 } 2688 case IWN5000_CALIBRATION_RESULT: 2689 iwn5000_rx_calib_results(sc, desc, data); 2690 break; 2691 2692 case IWN5000_CALIBRATION_DONE: 2693 sc->sc_flags |= IWN_FLAG_CALIB_DONE; 2694 wakeup(sc); 2695 break; 2696 } 2697 2698 sc->rxq.cur = (sc->rxq.cur + 1) % IWN_RX_RING_COUNT; 2699 } 2700 2701 /* Tell the firmware what we have processed. */ 2702 hw = (hw == 0) ? IWN_RX_RING_COUNT - 1 : hw - 1; 2703 IWN_WRITE(sc, IWN_FH_RX_WPTR, hw & ~7); 2704 } 2705 2706 /* 2707 * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up 2708 * from power-down sleep mode. 2709 */ 2710 static void 2711 iwn_wakeup_intr(struct iwn_softc *sc) 2712 { 2713 int qid; 2714 2715 DPRINTF(("ucode wakeup from power-down sleep\n")); 2716 2717 /* Wakeup RX and TX rings. */ 2718 IWN_WRITE(sc, IWN_FH_RX_WPTR, sc->rxq.cur & ~7); 2719 for (qid = 0; qid < sc->ntxqs; qid++) { 2720 struct iwn_tx_ring *ring = &sc->txq[qid]; 2721 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | ring->cur); 2722 } 2723 } 2724 2725 /* 2726 * Dump the error log of the firmware when a firmware panic occurs. Although 2727 * we can't debug the firmware because it is neither open source nor free, it 2728 * can help us to identify certain classes of problems. 2729 */ 2730 static void 2731 iwn_fatal_intr(struct iwn_softc *sc) 2732 { 2733 struct iwn_fw_dump dump; 2734 int i; 2735 2736 /* Force a complete recalibration on next init. */ 2737 sc->sc_flags &= ~IWN_FLAG_CALIB_DONE; 2738 2739 /* Check that the error log address is valid. */ 2740 if (sc->errptr < IWN_FW_DATA_BASE || 2741 sc->errptr + sizeof (dump) > 2742 IWN_FW_DATA_BASE + sc->fw_data_maxsz) { 2743 aprint_error_dev(sc->sc_dev, 2744 "bad firmware error log address 0x%08x\n", sc->errptr); 2745 return; 2746 } 2747 if (iwn_nic_lock(sc) != 0) { 2748 aprint_error_dev(sc->sc_dev, 2749 "could not read firmware error log\n"); 2750 return; 2751 } 2752 /* Read firmware error log from SRAM. */ 2753 iwn_mem_read_region_4(sc, sc->errptr, (uint32_t *)&dump, 2754 sizeof (dump) / sizeof (uint32_t)); 2755 iwn_nic_unlock(sc); 2756 2757 if (dump.valid == 0) { 2758 aprint_error_dev(sc->sc_dev, 2759 "firmware error log is empty\n"); 2760 return; 2761 } 2762 aprint_error("firmware error log:\n"); 2763 aprint_error(" error type = \"%s\" (0x%08X)\n", 2764 (dump.id < __arraycount(iwn_fw_errmsg)) ? 2765 iwn_fw_errmsg[dump.id] : "UNKNOWN", 2766 dump.id); 2767 aprint_error(" program counter = 0x%08X\n", dump.pc); 2768 aprint_error(" source line = 0x%08X\n", dump.src_line); 2769 aprint_error(" error data = 0x%08X%08X\n", 2770 dump.error_data[0], dump.error_data[1]); 2771 aprint_error(" branch link = 0x%08X%08X\n", 2772 dump.branch_link[0], dump.branch_link[1]); 2773 aprint_error(" interrupt link = 0x%08X%08X\n", 2774 dump.interrupt_link[0], dump.interrupt_link[1]); 2775 aprint_error(" time = %u\n", dump.time[0]); 2776 2777 /* Dump driver status (TX and RX rings) while we're here. */ 2778 aprint_error("driver status:\n"); 2779 for (i = 0; i < sc->ntxqs; i++) { 2780 struct iwn_tx_ring *ring = &sc->txq[i]; 2781 aprint_error(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n", 2782 i, ring->qid, ring->cur, ring->queued); 2783 } 2784 aprint_error(" rx ring: cur=%d\n", sc->rxq.cur); 2785 aprint_error(" 802.11 state %d\n", sc->sc_ic.ic_state); 2786 } 2787 2788 static int 2789 iwn_intr(void *arg) 2790 { 2791 struct iwn_softc *sc = arg; 2792 2793 /* Disable interrupts. */ 2794 IWN_WRITE(sc, IWN_INT_MASK, 0); 2795 2796 softint_schedule(sc->sc_soft_ih); 2797 return 1; 2798 } 2799 2800 static void 2801 iwn_softintr(void *arg) 2802 { 2803 struct iwn_softc *sc = arg; 2804 struct ifnet *ifp = sc->sc_ic.ic_ifp; 2805 uint32_t r1, r2, tmp; 2806 int s; 2807 2808 /* Read interrupts from ICT (fast) or from registers (slow). */ 2809 if (sc->sc_flags & IWN_FLAG_USE_ICT) { 2810 bus_dmamap_sync(sc->sc_dmat, sc->ict_dma.map, 0, 2811 IWN_ICT_SIZE, BUS_DMASYNC_POSTREAD); 2812 tmp = 0; 2813 while (sc->ict[sc->ict_cur] != 0) { 2814 tmp |= sc->ict[sc->ict_cur]; 2815 sc->ict[sc->ict_cur] = 0; /* Acknowledge. */ 2816 sc->ict_cur = (sc->ict_cur + 1) % IWN_ICT_COUNT; 2817 } 2818 bus_dmamap_sync(sc->sc_dmat, sc->ict_dma.map, 0, 2819 IWN_ICT_SIZE, BUS_DMASYNC_PREWRITE); 2820 tmp = le32toh(tmp); 2821 if (tmp == 0xffffffff) /* Shouldn't happen. */ 2822 tmp = 0; 2823 else if (tmp & 0xc0000) /* Workaround a HW bug. */ 2824 tmp |= 0x8000; 2825 r1 = (tmp & 0xff00) << 16 | (tmp & 0xff); 2826 r2 = 0; /* Unused. */ 2827 } else { 2828 r1 = IWN_READ(sc, IWN_INT); 2829 if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0) 2830 return; /* Hardware gone! */ 2831 r2 = IWN_READ(sc, IWN_FH_INT); 2832 } 2833 if (r1 == 0 && r2 == 0) { 2834 goto out; /* Interrupt not for us. */ 2835 } 2836 2837 /* Acknowledge interrupts. */ 2838 IWN_WRITE(sc, IWN_INT, r1); 2839 if (!(sc->sc_flags & IWN_FLAG_USE_ICT)) 2840 IWN_WRITE(sc, IWN_FH_INT, r2); 2841 2842 if (r1 & IWN_INT_RF_TOGGLED) { 2843 tmp = IWN_READ(sc, IWN_GP_CNTRL); 2844 aprint_error_dev(sc->sc_dev, 2845 "RF switch: radio %s\n", 2846 (tmp & IWN_GP_CNTRL_RFKILL) ? "enabled" : "disabled"); 2847 } 2848 if (r1 & IWN_INT_CT_REACHED) { 2849 aprint_error_dev(sc->sc_dev, 2850 "critical temperature reached!\n"); 2851 } 2852 if (r1 & (IWN_INT_SW_ERR | IWN_INT_HW_ERR)) { 2853 aprint_error_dev(sc->sc_dev, 2854 "fatal firmware error\n"); 2855 /* Dump firmware error log and stop. */ 2856 iwn_fatal_intr(sc); 2857 s = splnet(); 2858 ifp->if_flags &= ~IFF_UP; 2859 iwn_stop(ifp, 1); 2860 splx(s); 2861 return; 2862 } 2863 if ((r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX | IWN_INT_RX_PERIODIC)) || 2864 (r2 & IWN_FH_INT_RX)) { 2865 if (sc->sc_flags & IWN_FLAG_USE_ICT) { 2866 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) 2867 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_RX); 2868 IWN_WRITE_1(sc, IWN_INT_PERIODIC, IWN_INT_PERIODIC_DIS); 2869 iwn_notif_intr(sc); 2870 if (r1 & (IWN_INT_FH_RX | IWN_INT_SW_RX)) { 2871 IWN_WRITE_1(sc, IWN_INT_PERIODIC, 2872 IWN_INT_PERIODIC_ENA); 2873 } 2874 } else 2875 iwn_notif_intr(sc); 2876 } 2877 2878 if ((r1 & IWN_INT_FH_TX) || (r2 & IWN_FH_INT_TX)) { 2879 if (sc->sc_flags & IWN_FLAG_USE_ICT) 2880 IWN_WRITE(sc, IWN_FH_INT, IWN_FH_INT_TX); 2881 wakeup(sc); /* FH DMA transfer completed. */ 2882 } 2883 2884 if (r1 & IWN_INT_ALIVE) 2885 wakeup(sc); /* Firmware is alive. */ 2886 2887 if (r1 & IWN_INT_WAKEUP) 2888 iwn_wakeup_intr(sc); 2889 2890 out: 2891 /* Re-enable interrupts. */ 2892 if (ifp->if_flags & IFF_UP) 2893 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 2894 } 2895 2896 /* 2897 * Update TX scheduler ring when transmitting an 802.11 frame (4965AGN and 2898 * 5000 adapters use a slightly different format). 2899 */ 2900 static void 2901 iwn4965_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id, 2902 uint16_t len) 2903 { 2904 uint16_t *w = &sc->sched[qid * IWN4965_SCHED_COUNT + idx]; 2905 2906 *w = htole16(len + 8); 2907 bus_dmamap_sync(sc->sc_dmat, sc->sched_dma.map, 2908 (char *)(void *)w - (char *)(void *)sc->sched_dma.vaddr, 2909 sizeof (uint16_t), 2910 BUS_DMASYNC_PREWRITE); 2911 if (idx < IWN_SCHED_WINSZ) { 2912 *(w + IWN_TX_RING_COUNT) = *w; 2913 bus_dmamap_sync(sc->sc_dmat, sc->sched_dma.map, 2914 (char *)(void *)(w + IWN_TX_RING_COUNT) - 2915 (char *)(void *)sc->sched_dma.vaddr, 2916 sizeof (uint16_t), BUS_DMASYNC_PREWRITE); 2917 } 2918 } 2919 2920 static void 2921 iwn5000_update_sched(struct iwn_softc *sc, int qid, int idx, uint8_t id, 2922 uint16_t len) 2923 { 2924 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx]; 2925 2926 *w = htole16(id << 12 | (len + 8)); 2927 bus_dmamap_sync(sc->sc_dmat, sc->sched_dma.map, 2928 (char *)(void *)w - (char *)(void *)sc->sched_dma.vaddr, 2929 sizeof (uint16_t), BUS_DMASYNC_PREWRITE); 2930 if (idx < IWN_SCHED_WINSZ) { 2931 *(w + IWN_TX_RING_COUNT) = *w; 2932 bus_dmamap_sync(sc->sc_dmat, sc->sched_dma.map, 2933 (char *)(void *)(w + IWN_TX_RING_COUNT) - 2934 (char *)(void *)sc->sched_dma.vaddr, 2935 sizeof (uint16_t), BUS_DMASYNC_PREWRITE); 2936 } 2937 } 2938 2939 #ifdef notyet 2940 static void 2941 iwn5000_reset_sched(struct iwn_softc *sc, int qid, int idx) 2942 { 2943 uint16_t *w = &sc->sched[qid * IWN5000_SCHED_COUNT + idx]; 2944 2945 *w = (*w & htole16(0xf000)) | htole16(1); 2946 bus_dmamap_sync(sc->sc_dmat, sc->sched_dma.map, 2947 (char *)(void *)w - (char *)(void *)sc->sched_dma.vaddr, 2948 sizeof (uint16_t), BUS_DMASYNC_PREWRITE); 2949 if (idx < IWN_SCHED_WINSZ) { 2950 *(w + IWN_TX_RING_COUNT) = *w; 2951 bus_dmamap_sync(sc->sc_dmat, sc->sched_dma.map, 2952 (char *)(void *)(w + IWN_TX_RING_COUNT) - 2953 (char *)(void *)sc->sched_dma.vaddr, 2954 sizeof (uint16_t), BUS_DMASYNC_PREWRITE); 2955 } 2956 } 2957 #endif 2958 2959 static int 2960 iwn_tx(struct iwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni, int ac) 2961 { 2962 struct ieee80211com *ic = &sc->sc_ic; 2963 struct iwn_node *wn = (void *)ni; 2964 struct iwn_tx_ring *ring; 2965 struct iwn_tx_desc *desc; 2966 struct iwn_tx_data *data; 2967 struct iwn_tx_cmd *cmd; 2968 struct iwn_cmd_data *tx; 2969 const struct iwn_rate *rinfo; 2970 struct ieee80211_frame *wh; 2971 struct ieee80211_key *k = NULL; 2972 struct mbuf *m1; 2973 uint32_t flags; 2974 u_int hdrlen; 2975 bus_dma_segment_t *seg; 2976 uint8_t tid, ridx, txant, type; 2977 int i, totlen, error, pad; 2978 2979 const struct chanAccParams *cap; 2980 int noack; 2981 int hdrlen2; 2982 2983 wh = mtod(m, struct ieee80211_frame *); 2984 hdrlen = ieee80211_anyhdrsize(wh); 2985 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2986 2987 hdrlen2 = (ieee80211_has_qos(wh)) ? 2988 sizeof (struct ieee80211_qosframe) : 2989 sizeof (struct ieee80211_frame); 2990 2991 if (hdrlen != hdrlen2) 2992 aprint_error_dev(sc->sc_dev, "hdrlen error (%d != %d)\n", 2993 hdrlen, hdrlen2); 2994 2995 /* XXX OpenBSD sets a different tid when using QOS */ 2996 tid = 0; 2997 if (ieee80211_has_qos(wh)) { 2998 cap = &ic->ic_wme.wme_chanParams; 2999 noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 3000 } 3001 else 3002 noack = 0; 3003 3004 ring = &sc->txq[ac]; 3005 desc = &ring->desc[ring->cur]; 3006 data = &ring->data[ring->cur]; 3007 3008 /* Choose a TX rate index. */ 3009 if (IEEE80211_IS_MULTICAST(wh->i_addr1) || 3010 type != IEEE80211_FC0_TYPE_DATA) { 3011 ridx = (ic->ic_curmode == IEEE80211_MODE_11A) ? 3012 IWN_RIDX_OFDM6 : IWN_RIDX_CCK1; 3013 } else if (ic->ic_fixed_rate != -1) { 3014 ridx = sc->fixed_ridx; 3015 } else 3016 ridx = wn->ridx[ni->ni_txrate]; 3017 rinfo = &iwn_rates[ridx]; 3018 3019 /* Encrypt the frame if need be. */ 3020 /* 3021 * XXX For now, NetBSD swaps the encryption and bpf sections 3022 * in order to match old code and other drivers. Tests with 3023 * tcpdump indicates that the order is irrelevant, however, 3024 * as bpf produces unencrypted data for both ordering choices. 3025 */ 3026 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 3027 k = ieee80211_crypto_encap(ic, ni, m); 3028 if (k == NULL) { 3029 m_freem(m); 3030 return ENOBUFS; 3031 } 3032 /* Packet header may have moved, reset our local pointer. */ 3033 wh = mtod(m, struct ieee80211_frame *); 3034 } 3035 totlen = m->m_pkthdr.len; 3036 3037 if (sc->sc_drvbpf != NULL) { 3038 struct iwn_tx_radiotap_header *tap = &sc->sc_txtap; 3039 3040 tap->wt_flags = 0; 3041 tap->wt_chan_freq = htole16(ni->ni_chan->ic_freq); 3042 tap->wt_chan_flags = htole16(ni->ni_chan->ic_flags); 3043 tap->wt_rate = rinfo->rate; 3044 tap->wt_hwqueue = ac; 3045 if (wh->i_fc[1] & IEEE80211_FC1_WEP) 3046 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3047 3048 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m, BPF_D_OUT); 3049 } 3050 3051 /* Prepare TX firmware command. */ 3052 cmd = &ring->cmd[ring->cur]; 3053 cmd->code = IWN_CMD_TX_DATA; 3054 cmd->flags = 0; 3055 cmd->qid = ring->qid; 3056 cmd->idx = ring->cur; 3057 3058 tx = (struct iwn_cmd_data *)cmd->data; 3059 /* NB: No need to clear tx, all fields are reinitialized here. */ 3060 tx->scratch = 0; /* clear "scratch" area */ 3061 3062 flags = 0; 3063 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 3064 /* Unicast frame, check if an ACK is expected. */ 3065 if (!noack) 3066 flags |= IWN_TX_NEED_ACK; 3067 } 3068 3069 #ifdef notyet 3070 /* XXX NetBSD does not define IEEE80211_FC0_SUBTYPE_BAR */ 3071 if ((wh->i_fc[0] & 3072 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 3073 (IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_BAR)) 3074 flags |= IWN_TX_IMM_BA; /* Cannot happen yet. */ 3075 #endif 3076 3077 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG) 3078 flags |= IWN_TX_MORE_FRAG; /* Cannot happen yet. */ 3079 3080 /* Check if frame must be protected using RTS/CTS or CTS-to-self. */ 3081 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 3082 /* NB: Group frames are sent using CCK in 802.11b/g. */ 3083 if (totlen + IEEE80211_CRC_LEN > ic->ic_rtsthreshold) { 3084 flags |= IWN_TX_NEED_RTS; 3085 } else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 3086 ridx >= IWN_RIDX_OFDM6) { 3087 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY) 3088 flags |= IWN_TX_NEED_CTS; 3089 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS) 3090 flags |= IWN_TX_NEED_RTS; 3091 } 3092 if (flags & (IWN_TX_NEED_RTS | IWN_TX_NEED_CTS)) { 3093 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 3094 /* 5000 autoselects RTS/CTS or CTS-to-self. */ 3095 flags &= ~(IWN_TX_NEED_RTS | IWN_TX_NEED_CTS); 3096 flags |= IWN_TX_NEED_PROTECTION; 3097 } else 3098 flags |= IWN_TX_FULL_TXOP; 3099 } 3100 } 3101 3102 if (IEEE80211_IS_MULTICAST(wh->i_addr1) || 3103 type != IEEE80211_FC0_TYPE_DATA) 3104 tx->id = sc->broadcast_id; 3105 else 3106 tx->id = wn->id; 3107 3108 if (type == IEEE80211_FC0_TYPE_MGT) { 3109 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 3110 3111 #ifndef IEEE80211_STA_ONLY 3112 /* Tell HW to set timestamp in probe responses. */ 3113 /* XXX NetBSD rev 1.11 added probe requests here but */ 3114 /* probe requests do not take timestamps (from Bergamini). */ 3115 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 3116 flags |= IWN_TX_INSERT_TSTAMP; 3117 #endif 3118 /* XXX NetBSD rev 1.11 and 1.20 added AUTH/DAUTH and RTS/CTS */ 3119 /* changes here. These are not needed (from Bergamini). */ 3120 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 3121 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 3122 tx->timeout = htole16(3); 3123 else 3124 tx->timeout = htole16(2); 3125 } else 3126 tx->timeout = htole16(0); 3127 3128 if (hdrlen & 3) { 3129 /* First segment length must be a multiple of 4. */ 3130 flags |= IWN_TX_NEED_PADDING; 3131 pad = 4 - (hdrlen & 3); 3132 } else 3133 pad = 0; 3134 3135 tx->len = htole16(totlen); 3136 tx->tid = tid; 3137 tx->rts_ntries = 60; 3138 tx->data_ntries = 15; 3139 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 3140 tx->plcp = rinfo->plcp; 3141 tx->rflags = rinfo->flags; 3142 if (tx->id == sc->broadcast_id) { 3143 /* Group or management frame. */ 3144 tx->linkq = 0; 3145 /* XXX Alternate between antenna A and B? */ 3146 txant = IWN_LSB(sc->txchainmask); 3147 tx->rflags |= IWN_RFLAG_ANT(txant); 3148 } else { 3149 tx->linkq = ni->ni_rates.rs_nrates - ni->ni_txrate - 1; 3150 flags |= IWN_TX_LINKQ; /* enable MRR */ 3151 } 3152 /* Set physical address of "scratch area". */ 3153 tx->loaddr = htole32(IWN_LOADDR(data->scratch_paddr)); 3154 tx->hiaddr = IWN_HIADDR(data->scratch_paddr); 3155 3156 /* Copy 802.11 header in TX command. */ 3157 /* XXX NetBSD changed this in rev 1.20 */ 3158 memcpy(((uint8_t *)tx) + sizeof(*tx), wh, hdrlen); 3159 3160 /* Trim 802.11 header. */ 3161 m_adj(m, hdrlen); 3162 tx->security = 0; 3163 tx->flags = htole32(flags); 3164 3165 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m, 3166 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 3167 if (error != 0) { 3168 if (error != EFBIG) { 3169 aprint_error_dev(sc->sc_dev, 3170 "can't map mbuf (error %d)\n", error); 3171 m_freem(m); 3172 return error; 3173 } 3174 /* Too many DMA segments, linearize mbuf. */ 3175 MGETHDR(m1, M_DONTWAIT, MT_DATA); 3176 if (m1 == NULL) { 3177 m_freem(m); 3178 return ENOBUFS; 3179 } 3180 if (m->m_pkthdr.len > MHLEN) { 3181 MCLGET(m1, M_DONTWAIT); 3182 if (!(m1->m_flags & M_EXT)) { 3183 m_freem(m); 3184 m_freem(m1); 3185 return ENOBUFS; 3186 } 3187 } 3188 m_copydata(m, 0, m->m_pkthdr.len, mtod(m1, void *)); 3189 m1->m_pkthdr.len = m1->m_len = m->m_pkthdr.len; 3190 m_freem(m); 3191 m = m1; 3192 3193 error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m, 3194 BUS_DMA_NOWAIT | BUS_DMA_WRITE); 3195 if (error != 0) { 3196 aprint_error_dev(sc->sc_dev, 3197 "can't map mbuf (error %d)\n", error); 3198 m_freem(m); 3199 return error; 3200 } 3201 } 3202 3203 data->m = m; 3204 data->ni = ni; 3205 3206 DPRINTFN(4, ("sending data: qid=%d idx=%d len=%d nsegs=%d\n", 3207 ring->qid, ring->cur, m->m_pkthdr.len, data->map->dm_nsegs)); 3208 3209 /* Fill TX descriptor. */ 3210 desc->nsegs = 1 + data->map->dm_nsegs; 3211 /* First DMA segment is used by the TX command. */ 3212 desc->segs[0].addr = htole32(IWN_LOADDR(data->cmd_paddr)); 3213 desc->segs[0].len = htole16(IWN_HIADDR(data->cmd_paddr) | 3214 (4 + sizeof (*tx) + hdrlen + pad) << 4); 3215 /* Other DMA segments are for data payload. */ 3216 seg = data->map->dm_segs; 3217 for (i = 1; i <= data->map->dm_nsegs; i++) { 3218 desc->segs[i].addr = htole32(IWN_LOADDR(seg->ds_addr)); 3219 desc->segs[i].len = htole16(IWN_HIADDR(seg->ds_addr) | 3220 seg->ds_len << 4); 3221 seg++; 3222 } 3223 3224 bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, 3225 BUS_DMASYNC_PREWRITE); 3226 bus_dmamap_sync(sc->sc_dmat, ring->cmd_dma.map, 3227 (char *)(void *)cmd - (char *)(void *)ring->cmd_dma.vaddr, 3228 sizeof (*cmd), BUS_DMASYNC_PREWRITE); 3229 bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, 3230 (char *)(void *)desc - (char *)(void *)ring->desc_dma.vaddr, 3231 sizeof (*desc), BUS_DMASYNC_PREWRITE); 3232 3233 #ifdef notyet 3234 /* Update TX scheduler. */ 3235 ops->update_sched(sc, ring->qid, ring->cur, tx->id, totlen); 3236 #endif 3237 3238 /* Kick TX ring. */ 3239 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 3240 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); 3241 3242 /* Mark TX ring as full if we reach a certain threshold. */ 3243 if (++ring->queued > IWN_TX_RING_HIMARK) 3244 sc->qfullmsk |= 1 << ring->qid; 3245 3246 return 0; 3247 } 3248 3249 static void 3250 iwn_start(struct ifnet *ifp) 3251 { 3252 struct iwn_softc *sc = ifp->if_softc; 3253 struct ieee80211com *ic = &sc->sc_ic; 3254 struct ieee80211_node *ni; 3255 struct ether_header *eh; 3256 struct mbuf *m; 3257 int ac; 3258 3259 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 3260 return; 3261 3262 for (;;) { 3263 if (sc->sc_beacon_wait == 1) { 3264 ifp->if_flags |= IFF_OACTIVE; 3265 break; 3266 } 3267 3268 if (sc->qfullmsk != 0) { 3269 ifp->if_flags |= IFF_OACTIVE; 3270 break; 3271 } 3272 /* Send pending management frames first. */ 3273 IF_DEQUEUE(&ic->ic_mgtq, m); 3274 if (m != NULL) { 3275 ni = M_GETCTX(m, struct ieee80211_node *); 3276 ac = 0; 3277 goto sendit; 3278 } 3279 if (ic->ic_state != IEEE80211_S_RUN) 3280 break; 3281 3282 /* Encapsulate and send data frames. */ 3283 IFQ_DEQUEUE(&ifp->if_snd, m); 3284 if (m == NULL) 3285 break; 3286 if (m->m_len < sizeof (*eh) && 3287 (m = m_pullup(m, sizeof (*eh))) == NULL) { 3288 if_statinc(ifp, if_oerrors); 3289 continue; 3290 } 3291 eh = mtod(m, struct ether_header *); 3292 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 3293 if (ni == NULL) { 3294 m_freem(m); 3295 if_statinc(ifp, if_oerrors); 3296 continue; 3297 } 3298 /* classify mbuf so we can find which tx ring to use */ 3299 if (ieee80211_classify(ic, m, ni) != 0) { 3300 m_freem(m); 3301 ieee80211_free_node(ni); 3302 if_statinc(ifp, if_oerrors); 3303 continue; 3304 } 3305 3306 /* No QoS encapsulation for EAPOL frames. */ 3307 ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 3308 M_WME_GETAC(m) : WME_AC_BE; 3309 3310 if (sc->sc_beacon_wait == 0) 3311 bpf_mtap(ifp, m, BPF_D_OUT); 3312 3313 if ((m = ieee80211_encap(ic, m, ni)) == NULL) { 3314 ieee80211_free_node(ni); 3315 if_statinc(ifp, if_oerrors); 3316 continue; 3317 } 3318 sendit: 3319 if (sc->sc_beacon_wait) 3320 continue; 3321 3322 bpf_mtap3(ic->ic_rawbpf, m, BPF_D_OUT); 3323 3324 if (iwn_tx(sc, m, ni, ac) != 0) { 3325 ieee80211_free_node(ni); 3326 if_statinc(ifp, if_oerrors); 3327 continue; 3328 } 3329 3330 sc->sc_tx_timer = 5; 3331 ifp->if_timer = 1; 3332 } 3333 3334 if (sc->sc_beacon_wait > 1) 3335 sc->sc_beacon_wait = 0; 3336 } 3337 3338 static void 3339 iwn_watchdog(struct ifnet *ifp) 3340 { 3341 struct iwn_softc *sc = ifp->if_softc; 3342 3343 ifp->if_timer = 0; 3344 3345 if (sc->sc_tx_timer > 0) { 3346 if (--sc->sc_tx_timer == 0) { 3347 aprint_error_dev(sc->sc_dev, 3348 "device timeout\n"); 3349 ifp->if_flags &= ~IFF_UP; 3350 iwn_stop(ifp, 1); 3351 if_statinc(ifp, if_oerrors); 3352 return; 3353 } 3354 ifp->if_timer = 1; 3355 } 3356 3357 ieee80211_watchdog(&sc->sc_ic); 3358 } 3359 3360 static int 3361 iwn_ioctl(struct ifnet *ifp, u_long cmd, void *data) 3362 { 3363 struct iwn_softc *sc = ifp->if_softc; 3364 struct ieee80211com *ic = &sc->sc_ic; 3365 const struct sockaddr *sa; 3366 int s, error = 0; 3367 3368 s = splnet(); 3369 3370 switch (cmd) { 3371 case SIOCSIFADDR: 3372 ifp->if_flags |= IFF_UP; 3373 /* FALLTHROUGH */ 3374 case SIOCSIFFLAGS: 3375 /* XXX Added as it is in every NetBSD driver */ 3376 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 3377 break; 3378 if (ifp->if_flags & IFF_UP) { 3379 if (!(ifp->if_flags & IFF_RUNNING)) 3380 error = iwn_init(ifp); 3381 } else { 3382 if (ifp->if_flags & IFF_RUNNING) 3383 iwn_stop(ifp, 1); 3384 } 3385 break; 3386 3387 case SIOCADDMULTI: 3388 case SIOCDELMULTI: 3389 sa = ifreq_getaddr(SIOCADDMULTI, (struct ifreq *)data); 3390 error = (cmd == SIOCADDMULTI) ? 3391 ether_addmulti(sa, &sc->sc_ec) : 3392 ether_delmulti(sa, &sc->sc_ec); 3393 3394 if (error == ENETRESET) 3395 error = 0; 3396 break; 3397 3398 default: 3399 error = ieee80211_ioctl(ic, cmd, data); 3400 } 3401 3402 if (error == ENETRESET) { 3403 error = 0; 3404 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 3405 (IFF_UP | IFF_RUNNING)) { 3406 iwn_stop(ifp, 0); 3407 error = iwn_init(ifp); 3408 } 3409 } 3410 3411 splx(s); 3412 return error; 3413 } 3414 3415 /* 3416 * Send a command to the firmware. 3417 */ 3418 static int 3419 iwn_cmd(struct iwn_softc *sc, int code, const void *buf, int size, int async) 3420 { 3421 struct iwn_tx_ring *ring = &sc->txq[4]; 3422 struct iwn_tx_desc *desc; 3423 struct iwn_tx_data *data; 3424 struct iwn_tx_cmd *cmd; 3425 struct mbuf *m; 3426 bus_addr_t paddr; 3427 int totlen, error; 3428 3429 desc = &ring->desc[ring->cur]; 3430 data = &ring->data[ring->cur]; 3431 totlen = 4 + size; 3432 3433 if (size > sizeof cmd->data) { 3434 /* Command is too large to fit in a descriptor. */ 3435 if (totlen > MCLBYTES) 3436 return EINVAL; 3437 MGETHDR(m, M_DONTWAIT, MT_DATA); 3438 if (m == NULL) 3439 return ENOMEM; 3440 if (totlen > MHLEN) { 3441 MCLGET(m, M_DONTWAIT); 3442 if (!(m->m_flags & M_EXT)) { 3443 m_freem(m); 3444 return ENOMEM; 3445 } 3446 } 3447 cmd = mtod(m, struct iwn_tx_cmd *); 3448 error = bus_dmamap_load(sc->sc_dmat, data->map, cmd, totlen, 3449 NULL, BUS_DMA_NOWAIT | BUS_DMA_WRITE); 3450 if (error != 0) { 3451 m_freem(m); 3452 return error; 3453 } 3454 data->m = m; 3455 paddr = data->map->dm_segs[0].ds_addr; 3456 } else { 3457 cmd = &ring->cmd[ring->cur]; 3458 paddr = data->cmd_paddr; 3459 } 3460 3461 cmd->code = code; 3462 cmd->flags = 0; 3463 cmd->qid = ring->qid; 3464 cmd->idx = ring->cur; 3465 /* 3466 * Coverity:[OUT_OF_BOUNDS] 3467 * false positive since, allocated in mbuf if it does not fit 3468 */ 3469 memcpy(cmd->data, buf, size); 3470 3471 desc->nsegs = 1; 3472 desc->segs[0].addr = htole32(IWN_LOADDR(paddr)); 3473 desc->segs[0].len = htole16(IWN_HIADDR(paddr) | totlen << 4); 3474 3475 if (size > sizeof cmd->data) { 3476 bus_dmamap_sync(sc->sc_dmat, data->map, 0, totlen, 3477 BUS_DMASYNC_PREWRITE); 3478 } else { 3479 bus_dmamap_sync(sc->sc_dmat, ring->cmd_dma.map, 3480 (char *)(void *)cmd - (char *)(void *)ring->cmd_dma.vaddr, 3481 totlen, BUS_DMASYNC_PREWRITE); 3482 } 3483 bus_dmamap_sync(sc->sc_dmat, ring->desc_dma.map, 3484 (char *)(void *)desc - (char *)(void *)ring->desc_dma.vaddr, 3485 sizeof (*desc), BUS_DMASYNC_PREWRITE); 3486 3487 #ifdef notyet 3488 /* Update TX scheduler. */ 3489 ops->update_sched(sc, ring->qid, ring->cur, 0, 0); 3490 #endif 3491 DPRINTFN(4, ("iwn_cmd %d size=%d %s\n", code, size, async ? " (async)" : "")); 3492 3493 /* Kick command ring. */ 3494 ring->cur = (ring->cur + 1) % IWN_TX_RING_COUNT; 3495 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); 3496 3497 return async ? 0 : tsleep(desc, PCATCH, "iwncmd", hz); 3498 } 3499 3500 static int 3501 iwn4965_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async) 3502 { 3503 struct iwn4965_node_info hnode; 3504 char *src, *dst; 3505 3506 /* 3507 * We use the node structure for 5000 Series internally (it is 3508 * a superset of the one for 4965AGN). We thus copy the common 3509 * fields before sending the command. 3510 */ 3511 src = (char *)node; 3512 dst = (char *)&hnode; 3513 memcpy(dst, src, 48); 3514 /* Skip TSC, RX MIC and TX MIC fields from ``src''. */ 3515 memcpy(dst + 48, src + 72, 20); 3516 return iwn_cmd(sc, IWN_CMD_ADD_NODE, &hnode, sizeof hnode, async); 3517 } 3518 3519 static int 3520 iwn5000_add_node(struct iwn_softc *sc, struct iwn_node_info *node, int async) 3521 { 3522 /* Direct mapping. */ 3523 return iwn_cmd(sc, IWN_CMD_ADD_NODE, node, sizeof (*node), async); 3524 } 3525 3526 static int 3527 iwn_set_link_quality(struct iwn_softc *sc, struct ieee80211_node *ni) 3528 { 3529 struct iwn_node *wn = (void *)ni; 3530 struct ieee80211_rateset *rs = &ni->ni_rates; 3531 struct iwn_cmd_link_quality linkq; 3532 const struct iwn_rate *rinfo; 3533 uint8_t txant; 3534 int i, txrate; 3535 3536 /* Use the first valid TX antenna. */ 3537 txant = IWN_LSB(sc->txchainmask); 3538 3539 memset(&linkq, 0, sizeof linkq); 3540 linkq.id = wn->id; 3541 linkq.antmsk_1stream = txant; 3542 linkq.antmsk_2stream = IWN_ANT_AB; 3543 linkq.ampdu_max = 31; 3544 linkq.ampdu_threshold = 3; 3545 linkq.ampdu_limit = htole16(4000); /* 4ms */ 3546 3547 /* Start at highest available bit-rate. */ 3548 txrate = rs->rs_nrates - 1; 3549 for (i = 0; i < IWN_MAX_TX_RETRIES; i++) { 3550 rinfo = &iwn_rates[wn->ridx[txrate]]; 3551 linkq.retry[i].plcp = rinfo->plcp; 3552 linkq.retry[i].rflags = rinfo->flags; 3553 linkq.retry[i].rflags |= IWN_RFLAG_ANT(txant); 3554 /* Next retry at immediate lower bit-rate. */ 3555 if (txrate > 0) 3556 txrate--; 3557 } 3558 return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, 1); 3559 } 3560 3561 /* 3562 * Broadcast node is used to send group-addressed and management frames. 3563 */ 3564 static int 3565 iwn_add_broadcast_node(struct iwn_softc *sc, int async) 3566 { 3567 struct iwn_ops *ops = &sc->ops; 3568 struct iwn_node_info node; 3569 struct iwn_cmd_link_quality linkq; 3570 const struct iwn_rate *rinfo; 3571 uint8_t txant; 3572 int i, error; 3573 3574 memset(&node, 0, sizeof node); 3575 IEEE80211_ADDR_COPY(node.macaddr, etherbroadcastaddr); 3576 node.id = sc->broadcast_id; 3577 DPRINTF(("adding broadcast node\n")); 3578 if ((error = ops->add_node(sc, &node, async)) != 0) 3579 return error; 3580 3581 /* Use the first valid TX antenna. */ 3582 txant = IWN_LSB(sc->txchainmask); 3583 3584 memset(&linkq, 0, sizeof linkq); 3585 linkq.id = sc->broadcast_id; 3586 linkq.antmsk_1stream = txant; 3587 linkq.antmsk_2stream = IWN_ANT_AB; 3588 linkq.ampdu_max = 64; 3589 linkq.ampdu_threshold = 3; 3590 linkq.ampdu_limit = htole16(4000); /* 4ms */ 3591 3592 /* Use lowest mandatory bit-rate. */ 3593 rinfo = (sc->sc_ic.ic_curmode != IEEE80211_MODE_11A) ? 3594 &iwn_rates[IWN_RIDX_CCK1] : &iwn_rates[IWN_RIDX_OFDM6]; 3595 linkq.retry[0].plcp = rinfo->plcp; 3596 linkq.retry[0].rflags = rinfo->flags; 3597 linkq.retry[0].rflags |= IWN_RFLAG_ANT(txant); 3598 /* Use same bit-rate for all TX retries. */ 3599 for (i = 1; i < IWN_MAX_TX_RETRIES; i++) { 3600 linkq.retry[i].plcp = linkq.retry[0].plcp; 3601 linkq.retry[i].rflags = linkq.retry[0].rflags; 3602 } 3603 return iwn_cmd(sc, IWN_CMD_LINK_QUALITY, &linkq, sizeof linkq, async); 3604 } 3605 3606 static void 3607 iwn_set_led(struct iwn_softc *sc, uint8_t which, uint8_t off, uint8_t on) 3608 { 3609 struct iwn_cmd_led led; 3610 3611 /* Clear microcode LED ownership. */ 3612 IWN_CLRBITS(sc, IWN_LED, IWN_LED_BSM_CTRL); 3613 3614 led.which = which; 3615 led.unit = htole32(10000); /* on/off in unit of 100ms */ 3616 led.off = off; 3617 led.on = on; 3618 (void)iwn_cmd(sc, IWN_CMD_SET_LED, &led, sizeof led, 1); 3619 } 3620 3621 /* 3622 * Set the critical temperature at which the firmware will stop the radio 3623 * and notify us. 3624 */ 3625 static int 3626 iwn_set_critical_temp(struct iwn_softc *sc) 3627 { 3628 struct iwn_critical_temp crit; 3629 int32_t temp; 3630 3631 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CTEMP_STOP_RF); 3632 3633 if (sc->hw_type == IWN_HW_REV_TYPE_5150) 3634 temp = (IWN_CTOK(110) - sc->temp_off) * -5; 3635 else if (sc->hw_type == IWN_HW_REV_TYPE_4965) 3636 temp = IWN_CTOK(110); 3637 else 3638 temp = 110; 3639 memset(&crit, 0, sizeof crit); 3640 crit.tempR = htole32(temp); 3641 DPRINTF(("setting critical temperature to %d\n", temp)); 3642 return iwn_cmd(sc, IWN_CMD_SET_CRITICAL_TEMP, &crit, sizeof crit, 0); 3643 } 3644 3645 static int 3646 iwn_set_timing(struct iwn_softc *sc, struct ieee80211_node *ni) 3647 { 3648 struct iwn_cmd_timing cmd; 3649 uint64_t val, mod; 3650 3651 memset(&cmd, 0, sizeof cmd); 3652 memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t)); 3653 cmd.bintval = htole16(ni->ni_intval); 3654 cmd.lintval = htole16(10); 3655 3656 /* Compute remaining time until next beacon. */ 3657 val = (uint64_t)ni->ni_intval * 1024; /* msecs -> usecs */ 3658 mod = le64toh(cmd.tstamp) % val; 3659 cmd.binitval = htole32((uint32_t)(val - mod)); 3660 3661 DPRINTF(("timing bintval=%u, tstamp=%" PRIu64 ", init=%" PRIu32 "\n", 3662 ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod))); 3663 3664 return iwn_cmd(sc, IWN_CMD_TIMING, &cmd, sizeof cmd, 1); 3665 } 3666 3667 static void 3668 iwn4965_power_calibration(struct iwn_softc *sc, int temp) 3669 { 3670 /* Adjust TX power if need be (delta >= 3 degC). */ 3671 DPRINTF(("temperature %d->%d\n", sc->temp, temp)); 3672 if (abs(temp - sc->temp) >= 3) { 3673 /* Record temperature of last calibration. */ 3674 sc->temp = temp; 3675 (void)iwn4965_set_txpower(sc, 1); 3676 } 3677 } 3678 3679 /* 3680 * Set TX power for current channel (each rate has its own power settings). 3681 * This function takes into account the regulatory information from EEPROM, 3682 * the current temperature and the current voltage. 3683 */ 3684 static int 3685 iwn4965_set_txpower(struct iwn_softc *sc, int async) 3686 { 3687 /* Fixed-point arithmetic division using a n-bit fractional part. */ 3688 #define fdivround(a, b, n) \ 3689 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n)) 3690 /* Linear interpolation. */ 3691 #define interpolate(x, x1, y1, x2, y2, n) \ 3692 ((y1) + fdivround(((int)(x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n)) 3693 3694 static const int tdiv[IWN_NATTEN_GROUPS] = { 9, 8, 8, 8, 6 }; 3695 struct ieee80211com *ic = &sc->sc_ic; 3696 struct iwn_ucode_info *uc = &sc->ucode_info; 3697 struct ieee80211_channel *ch; 3698 struct iwn4965_cmd_txpower cmd; 3699 struct iwn4965_eeprom_chan_samples *chans; 3700 const uint8_t *rf_gain, *dsp_gain; 3701 int32_t vdiff, tdiff; 3702 int i, c, grp, maxpwr; 3703 uint8_t chan; 3704 3705 /* Retrieve current channel from last RXON. */ 3706 chan = sc->rxon.chan; 3707 DPRINTF(("setting TX power for channel %d\n", chan)); 3708 ch = &ic->ic_channels[chan]; 3709 3710 memset(&cmd, 0, sizeof cmd); 3711 cmd.band = IEEE80211_IS_CHAN_5GHZ(ch) ? 0 : 1; 3712 cmd.chan = chan; 3713 3714 if (IEEE80211_IS_CHAN_5GHZ(ch)) { 3715 maxpwr = sc->maxpwr5GHz; 3716 rf_gain = iwn4965_rf_gain_5ghz; 3717 dsp_gain = iwn4965_dsp_gain_5ghz; 3718 } else { 3719 maxpwr = sc->maxpwr2GHz; 3720 rf_gain = iwn4965_rf_gain_2ghz; 3721 dsp_gain = iwn4965_dsp_gain_2ghz; 3722 } 3723 3724 /* Compute voltage compensation. */ 3725 vdiff = ((int32_t)le32toh(uc->volt) - sc->eeprom_voltage) / 7; 3726 if (vdiff > 0) 3727 vdiff *= 2; 3728 if (abs(vdiff) > 2) 3729 vdiff = 0; 3730 DPRINTF(("voltage compensation=%d (UCODE=%d, EEPROM=%d)\n", 3731 vdiff, le32toh(uc->volt), sc->eeprom_voltage)); 3732 3733 /* Get channel attenuation group. */ 3734 if (chan <= 20) /* 1-20 */ 3735 grp = 4; 3736 else if (chan <= 43) /* 34-43 */ 3737 grp = 0; 3738 else if (chan <= 70) /* 44-70 */ 3739 grp = 1; 3740 else if (chan <= 124) /* 71-124 */ 3741 grp = 2; 3742 else /* 125-200 */ 3743 grp = 3; 3744 DPRINTF(("chan %d, attenuation group=%d\n", chan, grp)); 3745 3746 /* Get channel sub-band. */ 3747 for (i = 0; i < IWN_NBANDS; i++) 3748 if (sc->bands[i].lo != 0 && 3749 sc->bands[i].lo <= chan && chan <= sc->bands[i].hi) 3750 break; 3751 if (i == IWN_NBANDS) /* Can't happen in real-life. */ 3752 return EINVAL; 3753 chans = sc->bands[i].chans; 3754 DPRINTF(("chan %d sub-band=%d\n", chan, i)); 3755 3756 for (c = 0; c < 2; c++) { 3757 uint8_t power, gain, temp; 3758 int maxchpwr, pwr, ridx, idx; 3759 3760 power = interpolate(chan, 3761 chans[0].num, chans[0].samples[c][1].power, 3762 chans[1].num, chans[1].samples[c][1].power, 1); 3763 gain = interpolate(chan, 3764 chans[0].num, chans[0].samples[c][1].gain, 3765 chans[1].num, chans[1].samples[c][1].gain, 1); 3766 temp = interpolate(chan, 3767 chans[0].num, chans[0].samples[c][1].temp, 3768 chans[1].num, chans[1].samples[c][1].temp, 1); 3769 DPRINTF(("TX chain %d: power=%d gain=%d temp=%d\n", 3770 c, power, gain, temp)); 3771 3772 /* Compute temperature compensation. */ 3773 tdiff = ((sc->temp - temp) * 2) / tdiv[grp]; 3774 DPRINTF(("temperature compensation=%d (current=%d, " 3775 "EEPROM=%d)\n", tdiff, sc->temp, temp)); 3776 3777 for (ridx = 0; ridx <= IWN_RIDX_MAX; ridx++) { 3778 /* Convert dBm to half-dBm. */ 3779 maxchpwr = sc->maxpwr[chan] * 2; 3780 if ((ridx / 8) & 1) 3781 maxchpwr -= 6; /* MIMO 2T: -3dB */ 3782 3783 pwr = maxpwr; 3784 3785 /* Adjust TX power based on rate. */ 3786 if ((ridx % 8) == 5) 3787 pwr -= 15; /* OFDM48: -7.5dB */ 3788 else if ((ridx % 8) == 6) 3789 pwr -= 17; /* OFDM54: -8.5dB */ 3790 else if ((ridx % 8) == 7) 3791 pwr -= 20; /* OFDM60: -10dB */ 3792 else 3793 pwr -= 10; /* Others: -5dB */ 3794 3795 /* Do not exceed channel max TX power. */ 3796 if (pwr > maxchpwr) 3797 pwr = maxchpwr; 3798 3799 idx = gain - (pwr - power) - tdiff - vdiff; 3800 if ((ridx / 8) & 1) /* MIMO */ 3801 idx += (int32_t)le32toh(uc->atten[grp][c]); 3802 3803 if (cmd.band == 0) 3804 idx += 9; /* 5GHz */ 3805 if (ridx == IWN_RIDX_MAX) 3806 idx += 5; /* CCK */ 3807 3808 /* Make sure idx stays in a valid range. */ 3809 if (idx < 0) 3810 idx = 0; 3811 else if (idx > IWN4965_MAX_PWR_INDEX) 3812 idx = IWN4965_MAX_PWR_INDEX; 3813 3814 DPRINTF(("TX chain %d, rate idx %d: power=%d\n", 3815 c, ridx, idx)); 3816 cmd.power[ridx].rf_gain[c] = rf_gain[idx]; 3817 cmd.power[ridx].dsp_gain[c] = dsp_gain[idx]; 3818 } 3819 } 3820 3821 DPRINTF(("setting TX power for chan %d\n", chan)); 3822 return iwn_cmd(sc, IWN_CMD_TXPOWER, &cmd, sizeof cmd, async); 3823 3824 #undef interpolate 3825 #undef fdivround 3826 } 3827 3828 static int 3829 iwn5000_set_txpower(struct iwn_softc *sc, int async) 3830 { 3831 struct iwn5000_cmd_txpower cmd; 3832 int cmdid; 3833 3834 /* 3835 * TX power calibration is handled automatically by the firmware 3836 * for 5000 Series. 3837 */ 3838 memset(&cmd, 0, sizeof cmd); 3839 cmd.global_limit = 2 * IWN5000_TXPOWER_MAX_DBM; /* 16 dBm */ 3840 cmd.flags = IWN5000_TXPOWER_NO_CLOSED; 3841 cmd.srv_limit = IWN5000_TXPOWER_AUTO; 3842 DPRINTF(("setting TX power\n")); 3843 if (IWN_UCODE_API(sc->ucode_rev) == 1) 3844 cmdid = IWN_CMD_TXPOWER_DBM_V1; 3845 else 3846 cmdid = IWN_CMD_TXPOWER_DBM; 3847 return iwn_cmd(sc, cmdid, &cmd, sizeof cmd, async); 3848 } 3849 3850 /* 3851 * Retrieve the maximum RSSI (in dBm) among receivers. 3852 */ 3853 static int 3854 iwn4965_get_rssi(const struct iwn_rx_stat *stat) 3855 { 3856 const struct iwn4965_rx_phystat *phy = (const void *)stat->phybuf; 3857 uint8_t mask, agc; 3858 int rssi; 3859 3860 mask = (le16toh(phy->antenna) >> 4) & IWN_ANT_ABC; 3861 agc = (le16toh(phy->agc) >> 7) & 0x7f; 3862 3863 rssi = 0; 3864 if (mask & IWN_ANT_A) 3865 rssi = MAX(rssi, phy->rssi[0]); 3866 if (mask & IWN_ANT_B) 3867 rssi = MAX(rssi, phy->rssi[2]); 3868 if (mask & IWN_ANT_C) 3869 rssi = MAX(rssi, phy->rssi[4]); 3870 3871 return rssi - agc - IWN_RSSI_TO_DBM; 3872 } 3873 3874 static int 3875 iwn5000_get_rssi(const struct iwn_rx_stat *stat) 3876 { 3877 const struct iwn5000_rx_phystat *phy = (const void *)stat->phybuf; 3878 uint8_t agc; 3879 int rssi; 3880 3881 agc = (le32toh(phy->agc) >> 9) & 0x7f; 3882 3883 rssi = MAX(le16toh(phy->rssi[0]) & 0xff, 3884 le16toh(phy->rssi[1]) & 0xff); 3885 rssi = MAX(le16toh(phy->rssi[2]) & 0xff, rssi); 3886 3887 return rssi - agc - IWN_RSSI_TO_DBM; 3888 } 3889 3890 /* 3891 * Retrieve the average noise (in dBm) among receivers. 3892 */ 3893 static int 3894 iwn_get_noise(const struct iwn_rx_general_stats *stats) 3895 { 3896 int i, total, nbant, noise; 3897 3898 total = nbant = 0; 3899 for (i = 0; i < 3; i++) { 3900 if ((noise = le32toh(stats->noise[i]) & 0xff) == 0) 3901 continue; 3902 total += noise; 3903 nbant++; 3904 } 3905 /* There should be at least one antenna but check anyway. */ 3906 return (nbant == 0) ? -127 : (total / nbant) - 107; 3907 } 3908 3909 /* 3910 * Compute temperature (in degC) from last received statistics. 3911 */ 3912 static int 3913 iwn4965_get_temperature(struct iwn_softc *sc) 3914 { 3915 struct iwn_ucode_info *uc = &sc->ucode_info; 3916 int32_t r1, r2, r3, r4, temp; 3917 3918 r1 = le32toh(uc->temp[0].chan20MHz); 3919 r2 = le32toh(uc->temp[1].chan20MHz); 3920 r3 = le32toh(uc->temp[2].chan20MHz); 3921 r4 = le32toh(sc->rawtemp); 3922 3923 if (r1 == r3) /* Prevents division by 0 (should not happen). */ 3924 return 0; 3925 3926 /* Sign-extend 23-bit R4 value to 32-bit. */ 3927 r4 = ((r4 & 0xffffff) ^ 0x800000) - 0x800000; 3928 /* Compute temperature in Kelvin. */ 3929 temp = (259 * (r4 - r2)) / (r3 - r1); 3930 temp = (temp * 97) / 100 + 8; 3931 3932 DPRINTF(("temperature %dK/%dC\n", temp, IWN_KTOC(temp))); 3933 return IWN_KTOC(temp); 3934 } 3935 3936 static int 3937 iwn5000_get_temperature(struct iwn_softc *sc) 3938 { 3939 int32_t temp; 3940 3941 /* 3942 * Temperature is not used by the driver for 5000 Series because 3943 * TX power calibration is handled by firmware. We export it to 3944 * users through the sensor framework though. 3945 */ 3946 temp = le32toh(sc->rawtemp); 3947 if (sc->hw_type == IWN_HW_REV_TYPE_5150) { 3948 temp = (temp / -5) + sc->temp_off; 3949 temp = IWN_KTOC(temp); 3950 } 3951 return temp; 3952 } 3953 3954 /* 3955 * Initialize sensitivity calibration state machine. 3956 */ 3957 static int 3958 iwn_init_sensitivity(struct iwn_softc *sc) 3959 { 3960 struct iwn_ops *ops = &sc->ops; 3961 struct iwn_calib_state *calib = &sc->calib; 3962 uint32_t flags; 3963 int error; 3964 3965 /* Reset calibration state machine. */ 3966 memset(calib, 0, sizeof (*calib)); 3967 calib->state = IWN_CALIB_STATE_INIT; 3968 calib->cck_state = IWN_CCK_STATE_HIFA; 3969 /* Set initial correlation values. */ 3970 calib->ofdm_x1 = sc->limits->min_ofdm_x1; 3971 calib->ofdm_mrc_x1 = sc->limits->min_ofdm_mrc_x1; 3972 calib->ofdm_x4 = sc->limits->min_ofdm_x4; 3973 calib->ofdm_mrc_x4 = sc->limits->min_ofdm_mrc_x4; 3974 calib->cck_x4 = 125; 3975 calib->cck_mrc_x4 = sc->limits->min_cck_mrc_x4; 3976 calib->energy_cck = sc->limits->energy_cck; 3977 3978 /* Write initial sensitivity. */ 3979 if ((error = iwn_send_sensitivity(sc)) != 0) 3980 return error; 3981 3982 /* Write initial gains. */ 3983 if ((error = ops->init_gains(sc)) != 0) 3984 return error; 3985 3986 /* Request statistics at each beacon interval. */ 3987 flags = 0; 3988 DPRINTF(("sending request for statistics\n")); 3989 return iwn_cmd(sc, IWN_CMD_GET_STATISTICS, &flags, sizeof flags, 1); 3990 } 3991 3992 /* 3993 * Collect noise and RSSI statistics for the first 20 beacons received 3994 * after association and use them to determine connected antennas and 3995 * to set differential gains. 3996 */ 3997 static void 3998 iwn_collect_noise(struct iwn_softc *sc, 3999 const struct iwn_rx_general_stats *stats) 4000 { 4001 struct iwn_ops *ops = &sc->ops; 4002 struct iwn_calib_state *calib = &sc->calib; 4003 uint32_t val; 4004 int i; 4005 4006 /* Accumulate RSSI and noise for all 3 antennas. */ 4007 for (i = 0; i < 3; i++) { 4008 calib->rssi[i] += le32toh(stats->rssi[i]) & 0xff; 4009 calib->noise[i] += le32toh(stats->noise[i]) & 0xff; 4010 } 4011 /* NB: We update differential gains only once after 20 beacons. */ 4012 if (++calib->nbeacons < 20) 4013 return; 4014 4015 /* Determine highest average RSSI. */ 4016 val = MAX(calib->rssi[0], calib->rssi[1]); 4017 val = MAX(calib->rssi[2], val); 4018 4019 /* Determine which antennas are connected. */ 4020 sc->chainmask = sc->rxchainmask; 4021 for (i = 0; i < 3; i++) 4022 if (val - calib->rssi[i] > 15 * 20) 4023 sc->chainmask &= ~(1 << i); 4024 DPRINTF(("RX chains mask: theoretical=0x%x, actual=0x%x\n", 4025 sc->rxchainmask, sc->chainmask)); 4026 4027 /* If none of the TX antennas are connected, keep at least one. */ 4028 if ((sc->chainmask & sc->txchainmask) == 0) 4029 sc->chainmask |= IWN_LSB(sc->txchainmask); 4030 4031 (void)ops->set_gains(sc); 4032 calib->state = IWN_CALIB_STATE_RUN; 4033 4034 #ifdef notyet 4035 /* XXX Disable RX chains with no antennas connected. */ 4036 sc->rxon.rxchain = htole16(IWN_RXCHAIN_SEL(sc->chainmask)); 4037 (void)iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, sc->rxonsz, 1); 4038 #endif 4039 4040 /* Enable power-saving mode if requested by user. */ 4041 if (sc->sc_ic.ic_flags & IEEE80211_F_PMGTON) 4042 (void)iwn_set_pslevel(sc, 0, 3, 1); 4043 } 4044 4045 static int 4046 iwn4965_init_gains(struct iwn_softc *sc) 4047 { 4048 struct iwn_phy_calib_gain cmd; 4049 4050 memset(&cmd, 0, sizeof cmd); 4051 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN; 4052 /* Differential gains initially set to 0 for all 3 antennas. */ 4053 DPRINTF(("setting initial differential gains\n")); 4054 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 4055 } 4056 4057 static int 4058 iwn5000_init_gains(struct iwn_softc *sc) 4059 { 4060 struct iwn_phy_calib cmd; 4061 4062 memset(&cmd, 0, sizeof cmd); 4063 cmd.code = sc->reset_noise_gain; 4064 cmd.ngroups = 1; 4065 cmd.isvalid = 1; 4066 DPRINTF(("setting initial differential gains\n")); 4067 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 4068 } 4069 4070 static int 4071 iwn4965_set_gains(struct iwn_softc *sc) 4072 { 4073 struct iwn_calib_state *calib = &sc->calib; 4074 struct iwn_phy_calib_gain cmd; 4075 int i, delta, noise; 4076 4077 /* Get minimal noise among connected antennas. */ 4078 noise = INT_MAX; /* NB: There's at least one antenna. */ 4079 for (i = 0; i < 3; i++) 4080 if (sc->chainmask & (1 << i)) 4081 noise = MIN(calib->noise[i], noise); 4082 4083 memset(&cmd, 0, sizeof cmd); 4084 cmd.code = IWN4965_PHY_CALIB_DIFF_GAIN; 4085 /* Set differential gains for connected antennas. */ 4086 for (i = 0; i < 3; i++) { 4087 if (sc->chainmask & (1 << i)) { 4088 /* Compute attenuation (in unit of 1.5dB). */ 4089 delta = (noise - (int32_t)calib->noise[i]) / 30; 4090 /* NB: delta <= 0 */ 4091 /* Limit to [-4.5dB,0]. */ 4092 cmd.gain[i] = MIN(abs(delta), 3); 4093 if (delta < 0) 4094 cmd.gain[i] |= 1 << 2; /* sign bit */ 4095 } 4096 } 4097 DPRINTF(("setting differential gains Ant A/B/C: %x/%x/%x (%x)\n", 4098 cmd.gain[0], cmd.gain[1], cmd.gain[2], sc->chainmask)); 4099 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 4100 } 4101 4102 static int 4103 iwn5000_set_gains(struct iwn_softc *sc) 4104 { 4105 struct iwn_calib_state *calib = &sc->calib; 4106 struct iwn_phy_calib_gain cmd; 4107 int i, ant, div, delta; 4108 4109 /* We collected 20 beacons and !=6050 need a 1.5 factor. */ 4110 div = (sc->hw_type == IWN_HW_REV_TYPE_6050) ? 20 : 30; 4111 4112 memset(&cmd, 0, sizeof cmd); 4113 cmd.code = sc->noise_gain; 4114 cmd.ngroups = 1; 4115 cmd.isvalid = 1; 4116 /* Get first available RX antenna as referential. */ 4117 ant = IWN_LSB(sc->rxchainmask); 4118 /* Set differential gains for other antennas. */ 4119 for (i = ant + 1; i < 3; i++) { 4120 if (sc->chainmask & (1 << i)) { 4121 /* The delta is relative to antenna "ant". */ 4122 delta = ((int32_t)calib->noise[ant] - 4123 (int32_t)calib->noise[i]) / div; 4124 /* Limit to [-4.5dB,+4.5dB]. */ 4125 cmd.gain[i - 1] = MIN(abs(delta), 3); 4126 if (delta < 0) 4127 cmd.gain[i - 1] |= 1 << 2; /* sign bit */ 4128 } 4129 } 4130 DPRINTF(("setting differential gains: %x/%x (%x)\n", 4131 cmd.gain[0], cmd.gain[1], sc->chainmask)); 4132 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 1); 4133 } 4134 4135 /* 4136 * Tune RF RX sensitivity based on the number of false alarms detected 4137 * during the last beacon period. 4138 */ 4139 static void 4140 iwn_tune_sensitivity(struct iwn_softc *sc, const struct iwn_rx_stats *stats) 4141 { 4142 #define inc(val, inc, max) \ 4143 if ((val) < (max)) { \ 4144 if ((val) < (max) - (inc)) \ 4145 (val) += (inc); \ 4146 else \ 4147 (val) = (max); \ 4148 needs_update = 1; \ 4149 } 4150 #define dec(val, dec, min) \ 4151 if ((val) > (min)) { \ 4152 if ((val) > (min) + (dec)) \ 4153 (val) -= (dec); \ 4154 else \ 4155 (val) = (min); \ 4156 needs_update = 1; \ 4157 } 4158 4159 const struct iwn_sensitivity_limits *limits = sc->limits; 4160 struct iwn_calib_state *calib = &sc->calib; 4161 uint32_t val, rxena, fa; 4162 uint32_t energy[3], energy_min; 4163 uint8_t noise[3], noise_ref; 4164 int i, needs_update = 0; 4165 4166 /* Check that we've been enabled long enough. */ 4167 if ((rxena = le32toh(stats->general.load)) == 0) 4168 return; 4169 4170 /* Compute number of false alarms since last call for OFDM. */ 4171 fa = le32toh(stats->ofdm.bad_plcp) - calib->bad_plcp_ofdm; 4172 fa += le32toh(stats->ofdm.fa) - calib->fa_ofdm; 4173 fa *= 200 * 1024; /* 200TU */ 4174 4175 /* Save counters values for next call. */ 4176 calib->bad_plcp_ofdm = le32toh(stats->ofdm.bad_plcp); 4177 calib->fa_ofdm = le32toh(stats->ofdm.fa); 4178 4179 if (fa > 50 * rxena) { 4180 /* High false alarm count, decrease sensitivity. */ 4181 DPRINTFN(2, ("OFDM high false alarm count: %u\n", fa)); 4182 inc(calib->ofdm_x1, 1, limits->max_ofdm_x1); 4183 inc(calib->ofdm_mrc_x1, 1, limits->max_ofdm_mrc_x1); 4184 inc(calib->ofdm_x4, 1, limits->max_ofdm_x4); 4185 inc(calib->ofdm_mrc_x4, 1, limits->max_ofdm_mrc_x4); 4186 4187 } else if (fa < 5 * rxena) { 4188 /* Low false alarm count, increase sensitivity. */ 4189 DPRINTFN(2, ("OFDM low false alarm count: %u\n", fa)); 4190 dec(calib->ofdm_x1, 1, limits->min_ofdm_x1); 4191 dec(calib->ofdm_mrc_x1, 1, limits->min_ofdm_mrc_x1); 4192 dec(calib->ofdm_x4, 1, limits->min_ofdm_x4); 4193 dec(calib->ofdm_mrc_x4, 1, limits->min_ofdm_mrc_x4); 4194 } 4195 4196 /* Compute maximum noise among 3 receivers. */ 4197 for (i = 0; i < 3; i++) 4198 noise[i] = (le32toh(stats->general.noise[i]) >> 8) & 0xff; 4199 val = MAX(noise[0], noise[1]); 4200 val = MAX(noise[2], val); 4201 /* Insert it into our samples table. */ 4202 calib->noise_samples[calib->cur_noise_sample] = val; 4203 calib->cur_noise_sample = (calib->cur_noise_sample + 1) % 20; 4204 4205 /* Compute maximum noise among last 20 samples. */ 4206 noise_ref = calib->noise_samples[0]; 4207 for (i = 1; i < 20; i++) 4208 noise_ref = MAX(noise_ref, calib->noise_samples[i]); 4209 4210 /* Compute maximum energy among 3 receivers. */ 4211 for (i = 0; i < 3; i++) 4212 energy[i] = le32toh(stats->general.energy[i]); 4213 val = MIN(energy[0], energy[1]); 4214 val = MIN(energy[2], val); 4215 /* Insert it into our samples table. */ 4216 calib->energy_samples[calib->cur_energy_sample] = val; 4217 calib->cur_energy_sample = (calib->cur_energy_sample + 1) % 10; 4218 4219 /* Compute minimum energy among last 10 samples. */ 4220 energy_min = calib->energy_samples[0]; 4221 for (i = 1; i < 10; i++) 4222 energy_min = MAX(energy_min, calib->energy_samples[i]); 4223 energy_min += 6; 4224 4225 /* Compute number of false alarms since last call for CCK. */ 4226 fa = le32toh(stats->cck.bad_plcp) - calib->bad_plcp_cck; 4227 fa += le32toh(stats->cck.fa) - calib->fa_cck; 4228 fa *= 200 * 1024; /* 200TU */ 4229 4230 /* Save counters values for next call. */ 4231 calib->bad_plcp_cck = le32toh(stats->cck.bad_plcp); 4232 calib->fa_cck = le32toh(stats->cck.fa); 4233 4234 if (fa > 50 * rxena) { 4235 /* High false alarm count, decrease sensitivity. */ 4236 DPRINTFN(2, ("CCK high false alarm count: %u\n", fa)); 4237 calib->cck_state = IWN_CCK_STATE_HIFA; 4238 calib->low_fa = 0; 4239 4240 if (calib->cck_x4 > 160) { 4241 calib->noise_ref = noise_ref; 4242 if (calib->energy_cck > 2) 4243 dec(calib->energy_cck, 2, energy_min); 4244 } 4245 if (calib->cck_x4 < 160) { 4246 calib->cck_x4 = 161; 4247 needs_update = 1; 4248 } else 4249 inc(calib->cck_x4, 3, limits->max_cck_x4); 4250 4251 inc(calib->cck_mrc_x4, 3, limits->max_cck_mrc_x4); 4252 4253 } else if (fa < 5 * rxena) { 4254 /* Low false alarm count, increase sensitivity. */ 4255 DPRINTFN(2, ("CCK low false alarm count: %u\n", fa)); 4256 calib->cck_state = IWN_CCK_STATE_LOFA; 4257 calib->low_fa++; 4258 4259 if (calib->cck_state != IWN_CCK_STATE_INIT && 4260 (((int32_t)calib->noise_ref - (int32_t)noise_ref) > 2 || 4261 calib->low_fa > 100)) { 4262 inc(calib->energy_cck, 2, limits->min_energy_cck); 4263 dec(calib->cck_x4, 3, limits->min_cck_x4); 4264 dec(calib->cck_mrc_x4, 3, limits->min_cck_mrc_x4); 4265 } 4266 } else { 4267 /* Not worth to increase or decrease sensitivity. */ 4268 DPRINTFN(2, ("CCK normal false alarm count: %u\n", fa)); 4269 calib->low_fa = 0; 4270 calib->noise_ref = noise_ref; 4271 4272 if (calib->cck_state == IWN_CCK_STATE_HIFA) { 4273 /* Previous interval had many false alarms. */ 4274 dec(calib->energy_cck, 8, energy_min); 4275 } 4276 calib->cck_state = IWN_CCK_STATE_INIT; 4277 } 4278 4279 if (needs_update) 4280 (void)iwn_send_sensitivity(sc); 4281 #undef dec 4282 #undef inc 4283 } 4284 4285 static int 4286 iwn_send_sensitivity(struct iwn_softc *sc) 4287 { 4288 struct iwn_calib_state *calib = &sc->calib; 4289 struct iwn_enhanced_sensitivity_cmd cmd; 4290 int len; 4291 4292 memset(&cmd, 0, sizeof cmd); 4293 len = sizeof (struct iwn_sensitivity_cmd); 4294 cmd.which = IWN_SENSITIVITY_WORKTBL; 4295 /* OFDM modulation. */ 4296 cmd.corr_ofdm_x1 = htole16(calib->ofdm_x1); 4297 cmd.corr_ofdm_mrc_x1 = htole16(calib->ofdm_mrc_x1); 4298 cmd.corr_ofdm_x4 = htole16(calib->ofdm_x4); 4299 cmd.corr_ofdm_mrc_x4 = htole16(calib->ofdm_mrc_x4); 4300 cmd.energy_ofdm = htole16(sc->limits->energy_ofdm); 4301 cmd.energy_ofdm_th = htole16(62); 4302 /* CCK modulation. */ 4303 cmd.corr_cck_x4 = htole16(calib->cck_x4); 4304 cmd.corr_cck_mrc_x4 = htole16(calib->cck_mrc_x4); 4305 cmd.energy_cck = htole16(calib->energy_cck); 4306 /* Barker modulation: use default values. */ 4307 cmd.corr_barker = htole16(190); 4308 cmd.corr_barker_mrc = htole16(sc->limits->barker_mrc); 4309 if (!(sc->sc_flags & IWN_FLAG_ENH_SENS)) 4310 goto send; 4311 /* Enhanced sensitivity settings. */ 4312 len = sizeof (struct iwn_enhanced_sensitivity_cmd); 4313 cmd.ofdm_det_slope_mrc = htole16(668); 4314 cmd.ofdm_det_icept_mrc = htole16(4); 4315 cmd.ofdm_det_slope = htole16(486); 4316 cmd.ofdm_det_icept = htole16(37); 4317 cmd.cck_det_slope_mrc = htole16(853); 4318 cmd.cck_det_icept_mrc = htole16(4); 4319 cmd.cck_det_slope = htole16(476); 4320 cmd.cck_det_icept = htole16(99); 4321 send: 4322 DPRINTFN(2, ("setting sensitivity %d/%d/%d/%d/%d/%d/%d\n", 4323 calib->ofdm_x1, calib->ofdm_mrc_x1, calib->ofdm_x4, 4324 calib->ofdm_mrc_x4, calib->cck_x4, calib->cck_mrc_x4, 4325 calib->energy_cck)); 4326 return iwn_cmd(sc, IWN_CMD_SET_SENSITIVITY, &cmd, len, 1); 4327 } 4328 4329 /* 4330 * Set STA mode power saving level (between 0 and 5). 4331 * Level 0 is CAM (Continuously Aware Mode), 5 is for maximum power saving. 4332 */ 4333 static int 4334 iwn_set_pslevel(struct iwn_softc *sc, int dtim, int level, int async) 4335 { 4336 struct iwn_pmgt_cmd cmd; 4337 const struct iwn_pmgt *pmgt; 4338 uint32_t maxp, skip_dtim; 4339 pcireg_t reg; 4340 int i; 4341 4342 /* Select which PS parameters to use. */ 4343 if (dtim <= 2) 4344 pmgt = &iwn_pmgt[0][level]; 4345 else if (dtim <= 10) 4346 pmgt = &iwn_pmgt[1][level]; 4347 else 4348 pmgt = &iwn_pmgt[2][level]; 4349 4350 memset(&cmd, 0, sizeof cmd); 4351 if (level != 0) /* not CAM */ 4352 cmd.flags |= htole16(IWN_PS_ALLOW_SLEEP); 4353 if (level == 5) 4354 cmd.flags |= htole16(IWN_PS_FAST_PD); 4355 /* Retrieve PCIe Active State Power Management (ASPM). */ 4356 reg = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 4357 sc->sc_cap_off + PCIE_LCSR); 4358 if (!(reg & PCIE_LCSR_ASPM_L0S)) /* L0s Entry disabled. */ 4359 cmd.flags |= htole16(IWN_PS_PCI_PMGT); 4360 cmd.rxtimeout = htole32(pmgt->rxtimeout * 1024); 4361 cmd.txtimeout = htole32(pmgt->txtimeout * 1024); 4362 4363 if (dtim == 0) { 4364 dtim = 1; 4365 skip_dtim = 0; 4366 } else 4367 skip_dtim = pmgt->skip_dtim; 4368 if (skip_dtim != 0) { 4369 cmd.flags |= htole16(IWN_PS_SLEEP_OVER_DTIM); 4370 maxp = pmgt->intval[4]; 4371 if (maxp == (uint32_t)-1) 4372 maxp = dtim * (skip_dtim + 1); 4373 else if (maxp > dtim) 4374 maxp = (maxp / dtim) * dtim; 4375 } else 4376 maxp = dtim; 4377 for (i = 0; i < 5; i++) 4378 cmd.intval[i] = htole32(MIN(maxp, pmgt->intval[i])); 4379 4380 DPRINTF(("setting power saving level to %d\n", level)); 4381 return iwn_cmd(sc, IWN_CMD_SET_POWER_MODE, &cmd, sizeof cmd, async); 4382 } 4383 4384 int 4385 iwn5000_runtime_calib(struct iwn_softc *sc) 4386 { 4387 struct iwn5000_calib_config cmd; 4388 4389 memset(&cmd, 0, sizeof cmd); 4390 cmd.ucode.once.enable = 0xffffffff; 4391 cmd.ucode.once.start = IWN5000_CALIB_DC; 4392 DPRINTF(("configuring runtime calibration\n")); 4393 return iwn_cmd(sc, IWN5000_CMD_CALIB_CONFIG, &cmd, sizeof(cmd), 0); 4394 } 4395 4396 static int 4397 iwn_config_bt_coex_bluetooth(struct iwn_softc *sc) 4398 { 4399 struct iwn_bluetooth bluetooth; 4400 4401 memset(&bluetooth, 0, sizeof bluetooth); 4402 bluetooth.flags = IWN_BT_COEX_ENABLE; 4403 bluetooth.lead_time = IWN_BT_LEAD_TIME_DEF; 4404 bluetooth.max_kill = IWN_BT_MAX_KILL_DEF; 4405 4406 DPRINTF(("configuring bluetooth coexistence\n")); 4407 return iwn_cmd(sc, IWN_CMD_BT_COEX, &bluetooth, sizeof bluetooth, 0); 4408 } 4409 4410 static int 4411 iwn_config_bt_coex_prio_table(struct iwn_softc *sc) 4412 { 4413 uint8_t prio_table[16]; 4414 4415 memset(&prio_table, 0, sizeof prio_table); 4416 prio_table[ 0] = 6; /* init calibration 1 */ 4417 prio_table[ 1] = 7; /* init calibration 2 */ 4418 prio_table[ 2] = 2; /* periodic calib low 1 */ 4419 prio_table[ 3] = 3; /* periodic calib low 2 */ 4420 prio_table[ 4] = 4; /* periodic calib high 1 */ 4421 prio_table[ 5] = 5; /* periodic calib high 2 */ 4422 prio_table[ 6] = 6; /* dtim */ 4423 prio_table[ 7] = 8; /* scan52 */ 4424 prio_table[ 8] = 10; /* scan24 */ 4425 4426 DPRINTF(("sending priority lookup table\n")); 4427 return iwn_cmd(sc, IWN_CMD_BT_COEX_PRIO_TABLE, 4428 &prio_table, sizeof prio_table, 0); 4429 } 4430 4431 static int 4432 iwn_config_bt_coex_adv_config(struct iwn_softc *sc, struct iwn_bt_basic *basic, 4433 size_t len) 4434 { 4435 struct iwn_btcoex_prot btprot; 4436 int error; 4437 4438 basic->bt.flags = IWN_BT_COEX_ENABLE; 4439 basic->bt.lead_time = IWN_BT_LEAD_TIME_DEF; 4440 basic->bt.max_kill = IWN_BT_MAX_KILL_DEF; 4441 basic->bt.bt3_timer_t7_value = IWN_BT_BT3_T7_DEF; 4442 basic->bt.kill_ack_mask = IWN_BT_KILL_ACK_MASK_DEF; 4443 basic->bt.kill_cts_mask = IWN_BT_KILL_CTS_MASK_DEF; 4444 basic->bt3_prio_sample_time = IWN_BT_BT3_PRIO_SAMPLE_DEF; 4445 basic->bt3_timer_t2_value = IWN_BT_BT3_T2_DEF; 4446 basic->bt3_lookup_table[ 0] = htole32(0xaaaaaaaa); /* Normal */ 4447 basic->bt3_lookup_table[ 1] = htole32(0xaaaaaaaa); 4448 basic->bt3_lookup_table[ 2] = htole32(0xaeaaaaaa); 4449 basic->bt3_lookup_table[ 3] = htole32(0xaaaaaaaa); 4450 basic->bt3_lookup_table[ 4] = htole32(0xcc00ff28); 4451 basic->bt3_lookup_table[ 5] = htole32(0x0000aaaa); 4452 basic->bt3_lookup_table[ 6] = htole32(0xcc00aaaa); 4453 basic->bt3_lookup_table[ 7] = htole32(0x0000aaaa); 4454 basic->bt3_lookup_table[ 8] = htole32(0xc0004000); 4455 basic->bt3_lookup_table[ 9] = htole32(0x00004000); 4456 basic->bt3_lookup_table[10] = htole32(0xf0005000); 4457 basic->bt3_lookup_table[11] = htole32(0xf0005000); 4458 basic->reduce_txpower = 0; /* as not implemented */ 4459 basic->valid = IWN_BT_ALL_VALID_MASK; 4460 4461 DPRINTF(("configuring advanced bluetooth coexistence v1\n")); 4462 error = iwn_cmd(sc, IWN_CMD_BT_COEX, basic, len, 0); 4463 if (error != 0) { 4464 aprint_error_dev(sc->sc_dev, 4465 "could not configure advanced bluetooth coexistence\n"); 4466 return error; 4467 } 4468 4469 error = iwn_config_bt_coex_prio_table(sc); 4470 if (error != 0) { 4471 aprint_error_dev(sc->sc_dev, 4472 "could not configure send BT priority table\n"); 4473 return error; 4474 } 4475 4476 /* Force BT state machine change */ 4477 memset(&btprot, 0, sizeof btprot); 4478 btprot.open = 1; 4479 btprot.type = 1; 4480 error = iwn_cmd(sc, IWN_CMD_BT_COEX_PROT, &btprot, sizeof btprot, 1); 4481 if (error != 0) { 4482 aprint_error_dev(sc->sc_dev, "could not open BT protocol\n"); 4483 return error; 4484 } 4485 4486 btprot.open = 0; 4487 error = iwn_cmd(sc, IWN_CMD_BT_COEX_PROT, &btprot, sizeof btprot, 1); 4488 if (error != 0) { 4489 aprint_error_dev(sc->sc_dev, "could not close BT protocol\n"); 4490 return error; 4491 } 4492 return 0; 4493 } 4494 4495 static int 4496 iwn_config_bt_coex_adv1(struct iwn_softc *sc) 4497 { 4498 struct iwn_bt_adv1 d; 4499 4500 memset(&d, 0, sizeof d); 4501 d.prio_boost = IWN_BT_PRIO_BOOST_DEF; 4502 d.tx_prio_boost = 0; 4503 d.rx_prio_boost = 0; 4504 return iwn_config_bt_coex_adv_config(sc, &d.basic, sizeof d); 4505 } 4506 4507 static int 4508 iwn_config_bt_coex_adv2(struct iwn_softc *sc) 4509 { 4510 struct iwn_bt_adv2 d; 4511 4512 memset(&d, 0, sizeof d); 4513 d.prio_boost = IWN_BT_PRIO_BOOST_DEF; 4514 d.tx_prio_boost = 0; 4515 d.rx_prio_boost = 0; 4516 return iwn_config_bt_coex_adv_config(sc, &d.basic, sizeof d); 4517 } 4518 4519 static int 4520 iwn_config(struct iwn_softc *sc) 4521 { 4522 struct iwn_ops *ops = &sc->ops; 4523 struct ieee80211com *ic = &sc->sc_ic; 4524 struct ifnet *ifp = ic->ic_ifp; 4525 uint32_t txmask; 4526 uint16_t rxchain; 4527 int error; 4528 4529 error = ops->config_bt_coex(sc); 4530 if (error != 0) { 4531 aprint_error_dev(sc->sc_dev, 4532 "could not configure bluetooth coexistence\n"); 4533 return error; 4534 } 4535 4536 /* Set radio temperature sensor offset. */ 4537 if (sc->hw_type == IWN_HW_REV_TYPE_6005) { 4538 error = iwn6000_temp_offset_calib(sc); 4539 if (error != 0) { 4540 aprint_error_dev(sc->sc_dev, 4541 "could not set temperature offset\n"); 4542 return error; 4543 } 4544 } 4545 4546 if (sc->hw_type == IWN_HW_REV_TYPE_2030 || 4547 sc->hw_type == IWN_HW_REV_TYPE_2000 || 4548 sc->hw_type == IWN_HW_REV_TYPE_135 || 4549 sc->hw_type == IWN_HW_REV_TYPE_105) { 4550 error = iwn2000_temp_offset_calib(sc); 4551 if (error != 0) { 4552 aprint_error_dev(sc->sc_dev, 4553 "could not set temperature offset\n"); 4554 return error; 4555 } 4556 } 4557 4558 if (sc->hw_type == IWN_HW_REV_TYPE_6050 || 4559 sc->hw_type == IWN_HW_REV_TYPE_6005) { 4560 /* Configure runtime DC calibration. */ 4561 error = iwn5000_runtime_calib(sc); 4562 if (error != 0) { 4563 aprint_error_dev(sc->sc_dev, 4564 "could not configure runtime calibration\n"); 4565 return error; 4566 } 4567 } 4568 4569 /* Configure valid TX chains for 5000 Series. */ 4570 if (sc->hw_type != IWN_HW_REV_TYPE_4965) { 4571 txmask = htole32(sc->txchainmask); 4572 DPRINTF(("configuring valid TX chains 0x%x\n", txmask)); 4573 error = iwn_cmd(sc, IWN5000_CMD_TX_ANT_CONFIG, &txmask, 4574 sizeof txmask, 0); 4575 if (error != 0) { 4576 aprint_error_dev(sc->sc_dev, 4577 "could not configure valid TX chains\n"); 4578 return error; 4579 } 4580 } 4581 4582 /* Set mode, channel, RX filter and enable RX. */ 4583 memset(&sc->rxon, 0, sizeof (struct iwn_rxon)); 4584 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 4585 IEEE80211_ADDR_COPY(sc->rxon.myaddr, ic->ic_myaddr); 4586 IEEE80211_ADDR_COPY(sc->rxon.wlap, ic->ic_myaddr); 4587 sc->rxon.chan = ieee80211_chan2ieee(ic, ic->ic_ibss_chan); 4588 sc->rxon.flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF); 4589 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_ibss_chan)) 4590 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ); 4591 switch (ic->ic_opmode) { 4592 case IEEE80211_M_STA: 4593 sc->rxon.mode = IWN_MODE_STA; 4594 sc->rxon.filter = htole32(IWN_FILTER_MULTICAST); 4595 break; 4596 case IEEE80211_M_MONITOR: 4597 sc->rxon.mode = IWN_MODE_MONITOR; 4598 sc->rxon.filter = htole32(IWN_FILTER_MULTICAST | 4599 IWN_FILTER_CTL | IWN_FILTER_PROMISC); 4600 break; 4601 default: 4602 /* Should not get there. */ 4603 break; 4604 } 4605 sc->rxon.cck_mask = 0x0f; /* not yet negotiated */ 4606 sc->rxon.ofdm_mask = 0xff; /* not yet negotiated */ 4607 sc->rxon.ht_single_mask = 0xff; 4608 sc->rxon.ht_dual_mask = 0xff; 4609 sc->rxon.ht_triple_mask = 0xff; 4610 rxchain = 4611 IWN_RXCHAIN_VALID(sc->rxchainmask) | 4612 IWN_RXCHAIN_MIMO_COUNT(2) | 4613 IWN_RXCHAIN_IDLE_COUNT(2); 4614 sc->rxon.rxchain = htole16(rxchain); 4615 DPRINTF(("setting configuration\n")); 4616 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, sc->rxonsz, 0); 4617 if (error != 0) { 4618 aprint_error_dev(sc->sc_dev, 4619 "RXON command failed\n"); 4620 return error; 4621 } 4622 4623 if ((error = iwn_add_broadcast_node(sc, 0)) != 0) { 4624 aprint_error_dev(sc->sc_dev, 4625 "could not add broadcast node\n"); 4626 return error; 4627 } 4628 4629 /* Configuration has changed, set TX power accordingly. */ 4630 if ((error = ops->set_txpower(sc, 0)) != 0) { 4631 aprint_error_dev(sc->sc_dev, 4632 "could not set TX power\n"); 4633 return error; 4634 } 4635 4636 if ((error = iwn_set_critical_temp(sc)) != 0) { 4637 aprint_error_dev(sc->sc_dev, 4638 "could not set critical temperature\n"); 4639 return error; 4640 } 4641 4642 /* Set power saving level to CAM during initialization. */ 4643 if ((error = iwn_set_pslevel(sc, 0, 0, 0)) != 0) { 4644 aprint_error_dev(sc->sc_dev, 4645 "could not set power saving level\n"); 4646 return error; 4647 } 4648 return 0; 4649 } 4650 4651 static uint16_t 4652 iwn_get_active_dwell_time(struct iwn_softc *sc, uint16_t flags, 4653 uint8_t n_probes) 4654 { 4655 /* No channel? Default to 2GHz settings */ 4656 if (flags & IEEE80211_CHAN_2GHZ) 4657 return IWN_ACTIVE_DWELL_TIME_2GHZ + 4658 IWN_ACTIVE_DWELL_FACTOR_2GHZ * (n_probes + 1); 4659 4660 /* 5GHz dwell time */ 4661 return IWN_ACTIVE_DWELL_TIME_5GHZ + 4662 IWN_ACTIVE_DWELL_FACTOR_5GHZ * (n_probes + 1); 4663 } 4664 4665 /* 4666 * Limit the total dwell time to 85% of the beacon interval. 4667 * 4668 * Returns the dwell time in milliseconds. 4669 */ 4670 static uint16_t 4671 iwn_limit_dwell(struct iwn_softc *sc, uint16_t dwell_time) 4672 { 4673 struct ieee80211com *ic = &sc->sc_ic; 4674 struct ieee80211_node *ni = ic->ic_bss; 4675 int bintval = 0; 4676 4677 /* bintval is in TU (1.024mS) */ 4678 if (ni != NULL) 4679 bintval = ni->ni_intval; 4680 4681 /* 4682 * If it's non-zero, we should calculate the minimum of 4683 * it and the DWELL_BASE. 4684 * 4685 * XXX Yes, the math should take into account that bintval 4686 * is 1.024mS, not 1mS.. 4687 */ 4688 if (bintval > 0) 4689 return MIN(IWN_PASSIVE_DWELL_BASE, ((bintval * 85) / 100)); 4690 4691 /* No association context? Default */ 4692 return IWN_PASSIVE_DWELL_BASE; 4693 } 4694 4695 static uint16_t 4696 iwn_get_passive_dwell_time(struct iwn_softc *sc, uint16_t flags) 4697 { 4698 uint16_t passive; 4699 if (flags & IEEE80211_CHAN_2GHZ) 4700 passive = IWN_PASSIVE_DWELL_BASE + IWN_PASSIVE_DWELL_TIME_2GHZ; 4701 else 4702 passive = IWN_PASSIVE_DWELL_BASE + IWN_PASSIVE_DWELL_TIME_5GHZ; 4703 4704 /* Clamp to the beacon interval if we're associated */ 4705 return iwn_limit_dwell(sc, passive); 4706 } 4707 4708 static int 4709 iwn_scan(struct iwn_softc *sc, uint16_t flags) 4710 { 4711 struct ieee80211com *ic = &sc->sc_ic; 4712 struct iwn_scan_hdr *hdr; 4713 struct iwn_cmd_data *tx; 4714 struct iwn_scan_essid *essid; 4715 struct iwn_scan_chan *chan; 4716 struct ieee80211_frame *wh; 4717 struct ieee80211_rateset *rs; 4718 struct ieee80211_channel *c; 4719 uint8_t *buf, *frm; 4720 uint16_t rxchain, dwell_active, dwell_passive; 4721 uint8_t txant; 4722 int buflen, error, is_active; 4723 4724 buf = malloc(IWN_SCAN_MAXSZ, M_DEVBUF, M_NOWAIT | M_ZERO); 4725 if (buf == NULL) { 4726 aprint_error_dev(sc->sc_dev, 4727 "could not allocate buffer for scan command\n"); 4728 return ENOMEM; 4729 } 4730 hdr = (struct iwn_scan_hdr *)buf; 4731 /* 4732 * Move to the next channel if no frames are received within 10ms 4733 * after sending the probe request. 4734 */ 4735 hdr->quiet_time = htole16(10); /* timeout in milliseconds */ 4736 hdr->quiet_threshold = htole16(1); /* min # of packets */ 4737 4738 /* Select antennas for scanning. */ 4739 rxchain = 4740 IWN_RXCHAIN_VALID(sc->rxchainmask) | 4741 IWN_RXCHAIN_FORCE_MIMO_SEL(sc->rxchainmask) | 4742 IWN_RXCHAIN_DRIVER_FORCE; 4743 if ((flags & IEEE80211_CHAN_5GHZ) && 4744 sc->hw_type == IWN_HW_REV_TYPE_4965) { 4745 /* Ant A must be avoided in 5GHz because of an HW bug. */ 4746 rxchain |= IWN_RXCHAIN_FORCE_SEL(IWN_ANT_BC); 4747 } else /* Use all available RX antennas. */ 4748 rxchain |= IWN_RXCHAIN_FORCE_SEL(sc->rxchainmask); 4749 hdr->rxchain = htole16(rxchain); 4750 hdr->filter = htole32(IWN_FILTER_MULTICAST | IWN_FILTER_BEACON); 4751 4752 tx = (struct iwn_cmd_data *)(hdr + 1); 4753 tx->flags = htole32(IWN_TX_AUTO_SEQ); 4754 tx->id = sc->broadcast_id; 4755 tx->lifetime = htole32(IWN_LIFETIME_INFINITE); 4756 4757 if (flags & IEEE80211_CHAN_5GHZ) { 4758 hdr->crc_threshold = 0xffff; 4759 /* Send probe requests at 6Mbps. */ 4760 tx->plcp = iwn_rates[IWN_RIDX_OFDM6].plcp; 4761 rs = &ic->ic_sup_rates[IEEE80211_MODE_11A]; 4762 } else { 4763 hdr->flags = htole32(IWN_RXON_24GHZ | IWN_RXON_AUTO); 4764 /* Send probe requests at 1Mbps. */ 4765 tx->plcp = iwn_rates[IWN_RIDX_CCK1].plcp; 4766 tx->rflags = IWN_RFLAG_CCK; 4767 rs = &ic->ic_sup_rates[IEEE80211_MODE_11G]; 4768 } 4769 /* Use the first valid TX antenna. */ 4770 txant = IWN_LSB(sc->txchainmask); 4771 tx->rflags |= IWN_RFLAG_ANT(txant); 4772 4773 /* 4774 * Only do active scanning if we're announcing a probe request 4775 * for a given SSID (or more, if we ever add it to the driver.) 4776 */ 4777 is_active = 0; 4778 4779 essid = (struct iwn_scan_essid *)(tx + 1); 4780 if (ic->ic_des_esslen != 0) { 4781 essid[0].id = IEEE80211_ELEMID_SSID; 4782 essid[0].len = ic->ic_des_esslen; 4783 memcpy(essid[0].data, ic->ic_des_essid, ic->ic_des_esslen); 4784 4785 is_active = 1; 4786 } 4787 /* 4788 * Build a probe request frame. Most of the following code is a 4789 * copy & paste of what is done in net80211. 4790 */ 4791 wh = (struct ieee80211_frame *)(essid + 20); 4792 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 4793 IEEE80211_FC0_SUBTYPE_PROBE_REQ; 4794 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 4795 IEEE80211_ADDR_COPY(wh->i_addr1, etherbroadcastaddr); 4796 IEEE80211_ADDR_COPY(wh->i_addr2, ic->ic_myaddr); 4797 IEEE80211_ADDR_COPY(wh->i_addr3, etherbroadcastaddr); 4798 *(uint16_t *)&wh->i_dur[0] = 0; /* filled by HW */ 4799 *(uint16_t *)&wh->i_seq[0] = 0; /* filled by HW */ 4800 4801 frm = (uint8_t *)(wh + 1); 4802 frm = ieee80211_add_ssid(frm, NULL, 0); 4803 frm = ieee80211_add_rates(frm, rs); 4804 #ifndef IEEE80211_NO_HT 4805 if (ic->ic_flags & IEEE80211_F_HTON) 4806 frm = ieee80211_add_htcaps(frm, ic); 4807 #endif 4808 if (rs->rs_nrates > IEEE80211_RATE_SIZE) 4809 frm = ieee80211_add_xrates(frm, rs); 4810 4811 /* Set length of probe request. */ 4812 tx->len = htole16(frm - (uint8_t *)wh); 4813 4814 4815 /* 4816 * If active scanning is requested but a certain channel is 4817 * marked passive, we can do active scanning if we detect 4818 * transmissions. 4819 * 4820 * There is an issue with some firmware versions that triggers 4821 * a sysassert on a "good CRC threshold" of zero (== disabled), 4822 * on a radar channel even though this means that we should NOT 4823 * send probes. 4824 * 4825 * The "good CRC threshold" is the number of frames that we 4826 * need to receive during our dwell time on a channel before 4827 * sending out probes -- setting this to a huge value will 4828 * mean we never reach it, but at the same time work around 4829 * the aforementioned issue. Thus use IWN_GOOD_CRC_TH_NEVER 4830 * here instead of IWN_GOOD_CRC_TH_DISABLED. 4831 * 4832 * This was fixed in later versions along with some other 4833 * scan changes, and the threshold behaves as a flag in those 4834 * versions. 4835 */ 4836 4837 /* 4838 * If we're doing active scanning, set the crc_threshold 4839 * to a suitable value. This is different to active veruss 4840 * passive scanning depending upon the channel flags; the 4841 * firmware will obey that particular check for us. 4842 */ 4843 if (sc->tlv_feature_flags & IWN_UCODE_TLV_FLAGS_NEWSCAN) 4844 hdr->crc_threshold = is_active ? 4845 IWN_GOOD_CRC_TH_DEFAULT : IWN_GOOD_CRC_TH_DISABLED; 4846 else 4847 hdr->crc_threshold = is_active ? 4848 IWN_GOOD_CRC_TH_DEFAULT : IWN_GOOD_CRC_TH_NEVER; 4849 4850 chan = (struct iwn_scan_chan *)frm; 4851 for (c = &ic->ic_channels[1]; 4852 c <= &ic->ic_channels[IEEE80211_CHAN_MAX]; c++) { 4853 if ((c->ic_flags & flags) != flags) 4854 continue; 4855 4856 chan->chan = htole16(ieee80211_chan2ieee(ic, c)); 4857 DPRINTFN(2, ("adding channel %d\n", chan->chan)); 4858 chan->flags = 0; 4859 if (!(c->ic_flags & IEEE80211_CHAN_PASSIVE)) 4860 chan->flags |= htole32(IWN_CHAN_ACTIVE); 4861 if (ic->ic_des_esslen != 0) 4862 chan->flags |= htole32(IWN_CHAN_NPBREQS(1)); 4863 4864 /* 4865 * Calculate the active/passive dwell times. 4866 */ 4867 4868 dwell_active = iwn_get_active_dwell_time(sc, flags, is_active); 4869 dwell_passive = iwn_get_passive_dwell_time(sc, flags); 4870 4871 /* Make sure they're valid */ 4872 if (dwell_passive <= dwell_active) 4873 dwell_passive = dwell_active + 1; 4874 4875 chan->active = htole16(dwell_active); 4876 chan->passive = htole16(dwell_passive); 4877 4878 chan->dsp_gain = 0x6e; 4879 if (IEEE80211_IS_CHAN_5GHZ(c)) { 4880 chan->rf_gain = 0x3b; 4881 } else { 4882 chan->rf_gain = 0x28; 4883 } 4884 hdr->nchan++; 4885 chan++; 4886 } 4887 4888 buflen = (uint8_t *)chan - buf; 4889 hdr->len = htole16(buflen); 4890 4891 DPRINTF(("sending scan command nchan=%d\n", hdr->nchan)); 4892 error = iwn_cmd(sc, IWN_CMD_SCAN, buf, buflen, 1); 4893 free(buf, M_DEVBUF); 4894 return error; 4895 } 4896 4897 static int 4898 iwn_auth(struct iwn_softc *sc) 4899 { 4900 struct iwn_ops *ops = &sc->ops; 4901 struct ieee80211com *ic = &sc->sc_ic; 4902 struct ieee80211_node *ni = ic->ic_bss; 4903 int error; 4904 4905 /* Update adapter configuration. */ 4906 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid); 4907 sc->rxon.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 4908 sc->rxon.flags = htole32(IWN_RXON_TSF | IWN_RXON_CTS_TO_SELF); 4909 if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 4910 sc->rxon.flags |= htole32(IWN_RXON_AUTO | IWN_RXON_24GHZ); 4911 if (ic->ic_flags & IEEE80211_F_SHSLOT) 4912 sc->rxon.flags |= htole32(IWN_RXON_SHSLOT); 4913 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 4914 sc->rxon.flags |= htole32(IWN_RXON_SHPREAMBLE); 4915 switch (ic->ic_curmode) { 4916 case IEEE80211_MODE_11A: 4917 sc->rxon.cck_mask = 0; 4918 sc->rxon.ofdm_mask = 0x15; 4919 break; 4920 case IEEE80211_MODE_11B: 4921 sc->rxon.cck_mask = 0x03; 4922 sc->rxon.ofdm_mask = 0; 4923 break; 4924 default: /* Assume 802.11b/g. */ 4925 sc->rxon.cck_mask = 0x0f; 4926 sc->rxon.ofdm_mask = 0x15; 4927 } 4928 DPRINTF(("rxon chan %d flags %x cck %x ofdm %x\n", sc->rxon.chan, 4929 sc->rxon.flags, sc->rxon.cck_mask, sc->rxon.ofdm_mask)); 4930 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, sc->rxonsz, 1); 4931 if (error != 0) { 4932 aprint_error_dev(sc->sc_dev, 4933 "RXON command failed\n"); 4934 return error; 4935 } 4936 4937 /* Configuration has changed, set TX power accordingly. */ 4938 if ((error = ops->set_txpower(sc, 1)) != 0) { 4939 aprint_error_dev(sc->sc_dev, 4940 "could not set TX power\n"); 4941 return error; 4942 } 4943 /* 4944 * Reconfiguring RXON clears the firmware nodes table so we must 4945 * add the broadcast node again. 4946 */ 4947 if ((error = iwn_add_broadcast_node(sc, 1)) != 0) { 4948 aprint_error_dev(sc->sc_dev, 4949 "could not add broadcast node\n"); 4950 return error; 4951 } 4952 return 0; 4953 } 4954 4955 static int 4956 iwn_run(struct iwn_softc *sc) 4957 { 4958 struct iwn_ops *ops = &sc->ops; 4959 struct ieee80211com *ic = &sc->sc_ic; 4960 struct ieee80211_node *ni = ic->ic_bss; 4961 struct iwn_node_info node; 4962 int error; 4963 4964 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 4965 /* Link LED blinks while monitoring. */ 4966 iwn_set_led(sc, IWN_LED_LINK, 5, 5); 4967 return 0; 4968 } 4969 if ((error = iwn_set_timing(sc, ni)) != 0) { 4970 aprint_error_dev(sc->sc_dev, 4971 "could not set timing\n"); 4972 return error; 4973 } 4974 4975 /* Update adapter configuration. */ 4976 sc->rxon.associd = htole16(IEEE80211_AID(ni->ni_associd)); 4977 /* Short preamble and slot time are negotiated when associating. */ 4978 sc->rxon.flags &= ~htole32(IWN_RXON_SHPREAMBLE | IWN_RXON_SHSLOT); 4979 if (ic->ic_flags & IEEE80211_F_SHSLOT) 4980 sc->rxon.flags |= htole32(IWN_RXON_SHSLOT); 4981 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 4982 sc->rxon.flags |= htole32(IWN_RXON_SHPREAMBLE); 4983 sc->rxon.filter |= htole32(IWN_FILTER_BSS); 4984 DPRINTF(("rxon chan %d flags %x\n", sc->rxon.chan, sc->rxon.flags)); 4985 error = iwn_cmd(sc, IWN_CMD_RXON, &sc->rxon, sc->rxonsz, 1); 4986 if (error != 0) { 4987 aprint_error_dev(sc->sc_dev, 4988 "could not update configuration\n"); 4989 return error; 4990 } 4991 4992 /* Configuration has changed, set TX power accordingly. */ 4993 if ((error = ops->set_txpower(sc, 1)) != 0) { 4994 aprint_error_dev(sc->sc_dev, 4995 "could not set TX power\n"); 4996 return error; 4997 } 4998 4999 /* Fake a join to initialize the TX rate. */ 5000 ((struct iwn_node *)ni)->id = IWN_ID_BSS; 5001 iwn_newassoc(ni, 1); 5002 5003 /* Add BSS node. */ 5004 memset(&node, 0, sizeof node); 5005 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr); 5006 node.id = IWN_ID_BSS; 5007 #ifdef notyet 5008 node.htflags = htole32(IWN_AMDPU_SIZE_FACTOR(3) | 5009 IWN_AMDPU_DENSITY(5)); /* 2us */ 5010 #endif 5011 DPRINTF(("adding BSS node\n")); 5012 error = ops->add_node(sc, &node, 1); 5013 if (error != 0) { 5014 aprint_error_dev(sc->sc_dev, 5015 "could not add BSS node\n"); 5016 return error; 5017 } 5018 DPRINTF(("setting link quality for node %d\n", node.id)); 5019 if ((error = iwn_set_link_quality(sc, ni)) != 0) { 5020 aprint_error_dev(sc->sc_dev, 5021 "could not setup link quality for node %d\n", node.id); 5022 return error; 5023 } 5024 5025 if ((error = iwn_init_sensitivity(sc)) != 0) { 5026 aprint_error_dev(sc->sc_dev, 5027 "could not set sensitivity\n"); 5028 return error; 5029 } 5030 /* Start periodic calibration timer. */ 5031 sc->calib.state = IWN_CALIB_STATE_ASSOC; 5032 sc->calib_cnt = 0; 5033 callout_schedule(&sc->calib_to, hz/2); 5034 5035 /* Link LED always on while associated. */ 5036 iwn_set_led(sc, IWN_LED_LINK, 0, 1); 5037 return 0; 5038 } 5039 5040 #ifdef IWN_HWCRYPTO 5041 /* 5042 * We support CCMP hardware encryption/decryption of unicast frames only. 5043 * HW support for TKIP really sucks. We should let TKIP die anyway. 5044 */ 5045 static int 5046 iwn_set_key(struct ieee80211com *ic, struct ieee80211_node *ni, 5047 struct ieee80211_key *k) 5048 { 5049 struct iwn_softc *sc = ic->ic_softc; 5050 struct iwn_ops *ops = &sc->ops; 5051 struct iwn_node *wn = (void *)ni; 5052 struct iwn_node_info node; 5053 uint16_t kflags; 5054 5055 if ((k->k_flags & IEEE80211_KEY_GROUP) || 5056 k->k_cipher != IEEE80211_CIPHER_CCMP) 5057 return ieee80211_set_key(ic, ni, k); 5058 5059 kflags = IWN_KFLAG_CCMP | IWN_KFLAG_MAP | IWN_KFLAG_KID(k->k_id); 5060 if (k->k_flags & IEEE80211_KEY_GROUP) 5061 kflags |= IWN_KFLAG_GROUP; 5062 5063 memset(&node, 0, sizeof node); 5064 node.id = (k->k_flags & IEEE80211_KEY_GROUP) ? 5065 sc->broadcast_id : wn->id; 5066 node.control = IWN_NODE_UPDATE; 5067 node.flags = IWN_FLAG_SET_KEY; 5068 node.kflags = htole16(kflags); 5069 node.kid = k->k_id; 5070 memcpy(node.key, k->k_key, k->k_len); 5071 DPRINTF(("set key id=%d for node %d\n", k->k_id, node.id)); 5072 return ops->add_node(sc, &node, 1); 5073 } 5074 5075 static void 5076 iwn_delete_key(struct ieee80211com *ic, struct ieee80211_node *ni, 5077 struct ieee80211_key *k) 5078 { 5079 struct iwn_softc *sc = ic->ic_softc; 5080 struct iwn_ops *ops = &sc->ops; 5081 struct iwn_node *wn = (void *)ni; 5082 struct iwn_node_info node; 5083 5084 if ((k->k_flags & IEEE80211_KEY_GROUP) || 5085 k->k_cipher != IEEE80211_CIPHER_CCMP) { 5086 /* See comment about other ciphers above. */ 5087 ieee80211_delete_key(ic, ni, k); 5088 return; 5089 } 5090 if (ic->ic_state != IEEE80211_S_RUN) 5091 return; /* Nothing to do. */ 5092 memset(&node, 0, sizeof node); 5093 node.id = (k->k_flags & IEEE80211_KEY_GROUP) ? 5094 sc->broadcast_id : wn->id; 5095 node.control = IWN_NODE_UPDATE; 5096 node.flags = IWN_FLAG_SET_KEY; 5097 node.kflags = htole16(IWN_KFLAG_INVALID); 5098 node.kid = 0xff; 5099 DPRINTF(("delete keys for node %d\n", node.id)); 5100 (void)ops->add_node(sc, &node, 1); 5101 } 5102 #endif 5103 5104 /* XXX Added for NetBSD (copied from rev 1.39). */ 5105 5106 static int 5107 iwn_wme_update(struct ieee80211com *ic) 5108 { 5109 #define IWN_EXP2(v) htole16((1 << (v)) - 1) 5110 #define IWN_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 5111 struct iwn_softc *sc = ic->ic_ifp->if_softc; 5112 const struct wmeParams *wmep; 5113 struct iwn_edca_params cmd; 5114 int ac; 5115 5116 /* don't override default WME values if WME is not actually enabled */ 5117 if (!(ic->ic_flags & IEEE80211_F_WME)) 5118 return 0; 5119 cmd.flags = 0; 5120 for (ac = 0; ac < WME_NUM_AC; ac++) { 5121 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 5122 cmd.ac[ac].aifsn = wmep->wmep_aifsn; 5123 cmd.ac[ac].cwmin = IWN_EXP2(wmep->wmep_logcwmin); 5124 cmd.ac[ac].cwmax = IWN_EXP2(wmep->wmep_logcwmax); 5125 cmd.ac[ac].txoplimit = IWN_USEC(wmep->wmep_txopLimit); 5126 5127 DPRINTF(("setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d " 5128 "txop=%d\n", ac, cmd.ac[ac].aifsn, 5129 cmd.ac[ac].cwmin, 5130 cmd.ac[ac].cwmax, cmd.ac[ac].txoplimit)); 5131 } 5132 return iwn_cmd(sc, IWN_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1); 5133 #undef IWN_USEC 5134 #undef IWN_EXP2 5135 } 5136 5137 #ifndef IEEE80211_NO_HT 5138 /* 5139 * This function is called by upper layer when an ADDBA request is received 5140 * from another STA and before the ADDBA response is sent. 5141 */ 5142 static int 5143 iwn_ampdu_rx_start(struct ieee80211com *ic, struct ieee80211_node *ni, 5144 uint8_t tid) 5145 { 5146 struct ieee80211_rx_ba *ba = &ni->ni_rx_ba[tid]; 5147 struct iwn_softc *sc = ic->ic_softc; 5148 struct iwn_ops *ops = &sc->ops; 5149 struct iwn_node *wn = (void *)ni; 5150 struct iwn_node_info node; 5151 5152 memset(&node, 0, sizeof node); 5153 node.id = wn->id; 5154 node.control = IWN_NODE_UPDATE; 5155 node.flags = IWN_FLAG_SET_ADDBA; 5156 node.addba_tid = tid; 5157 node.addba_ssn = htole16(ba->ba_winstart); 5158 DPRINTFN(2, ("ADDBA RA=%d TID=%d SSN=%d\n", wn->id, tid, 5159 ba->ba_winstart)); 5160 return ops->add_node(sc, &node, 1); 5161 } 5162 5163 /* 5164 * This function is called by upper layer on teardown of an HT-immediate 5165 * Block Ack agreement (eg. uppon receipt of a DELBA frame). 5166 */ 5167 static void 5168 iwn_ampdu_rx_stop(struct ieee80211com *ic, struct ieee80211_node *ni, 5169 uint8_t tid) 5170 { 5171 struct iwn_softc *sc = ic->ic_softc; 5172 struct iwn_ops *ops = &sc->ops; 5173 struct iwn_node *wn = (void *)ni; 5174 struct iwn_node_info node; 5175 5176 memset(&node, 0, sizeof node); 5177 node.id = wn->id; 5178 node.control = IWN_NODE_UPDATE; 5179 node.flags = IWN_FLAG_SET_DELBA; 5180 node.delba_tid = tid; 5181 DPRINTFN(2, ("DELBA RA=%d TID=%d\n", wn->id, tid)); 5182 (void)ops->add_node(sc, &node, 1); 5183 } 5184 5185 /* 5186 * This function is called by upper layer when an ADDBA response is received 5187 * from another STA. 5188 */ 5189 static int 5190 iwn_ampdu_tx_start(struct ieee80211com *ic, struct ieee80211_node *ni, 5191 uint8_t tid) 5192 { 5193 struct ieee80211_tx_ba *ba = &ni->ni_tx_ba[tid]; 5194 struct iwn_softc *sc = ic->ic_softc; 5195 struct iwn_ops *ops = &sc->ops; 5196 struct iwn_node *wn = (void *)ni; 5197 struct iwn_node_info node; 5198 int error; 5199 5200 /* Enable TX for the specified RA/TID. */ 5201 wn->disable_tid &= ~(1 << tid); 5202 memset(&node, 0, sizeof node); 5203 node.id = wn->id; 5204 node.control = IWN_NODE_UPDATE; 5205 node.flags = IWN_FLAG_SET_DISABLE_TID; 5206 node.disable_tid = htole16(wn->disable_tid); 5207 error = ops->add_node(sc, &node, 1); 5208 if (error != 0) 5209 return error; 5210 5211 if ((error = iwn_nic_lock(sc)) != 0) 5212 return error; 5213 ops->ampdu_tx_start(sc, ni, tid, ba->ba_winstart); 5214 iwn_nic_unlock(sc); 5215 return 0; 5216 } 5217 5218 static void 5219 iwn_ampdu_tx_stop(struct ieee80211com *ic, struct ieee80211_node *ni, 5220 uint8_t tid) 5221 { 5222 struct ieee80211_tx_ba *ba = &ni->ni_tx_ba[tid]; 5223 struct iwn_softc *sc = ic->ic_softc; 5224 struct iwn_ops *ops = &sc->ops; 5225 5226 if (iwn_nic_lock(sc) != 0) 5227 return; 5228 ops->ampdu_tx_stop(sc, tid, ba->ba_winstart); 5229 iwn_nic_unlock(sc); 5230 } 5231 5232 static void 5233 iwn4965_ampdu_tx_start(struct iwn_softc *sc, struct ieee80211_node *ni, 5234 uint8_t tid, uint16_t ssn) 5235 { 5236 struct iwn_node *wn = (void *)ni; 5237 int qid = 7 + tid; 5238 5239 /* Stop TX scheduler while we're changing its configuration. */ 5240 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid), 5241 IWN4965_TXQ_STATUS_CHGACT); 5242 5243 /* Assign RA/TID translation to the queue. */ 5244 iwn_mem_write_2(sc, sc->sched_base + IWN4965_SCHED_TRANS_TBL(qid), 5245 wn->id << 4 | tid); 5246 5247 /* Enable chain-building mode for the queue. */ 5248 iwn_prph_setbits(sc, IWN4965_SCHED_QCHAIN_SEL, 1 << qid); 5249 5250 /* Set starting sequence number from the ADDBA request. */ 5251 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff)); 5252 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), ssn); 5253 5254 /* Set scheduler window size. */ 5255 iwn_mem_write(sc, sc->sched_base + IWN4965_SCHED_QUEUE_OFFSET(qid), 5256 IWN_SCHED_WINSZ); 5257 /* Set scheduler frame limit. */ 5258 iwn_mem_write(sc, sc->sched_base + IWN4965_SCHED_QUEUE_OFFSET(qid) + 4, 5259 IWN_SCHED_LIMIT << 16); 5260 5261 /* Enable interrupts for the queue. */ 5262 iwn_prph_setbits(sc, IWN4965_SCHED_INTR_MASK, 1 << qid); 5263 5264 /* Mark the queue as active. */ 5265 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid), 5266 IWN4965_TXQ_STATUS_ACTIVE | IWN4965_TXQ_STATUS_AGGR_ENA | 5267 iwn_tid2fifo[tid] << 1); 5268 } 5269 5270 static void 5271 iwn4965_ampdu_tx_stop(struct iwn_softc *sc, uint8_t tid, uint16_t ssn) 5272 { 5273 int qid = 7 + tid; 5274 5275 /* Stop TX scheduler while we're changing its configuration. */ 5276 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid), 5277 IWN4965_TXQ_STATUS_CHGACT); 5278 5279 /* Set starting sequence number from the ADDBA request. */ 5280 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff)); 5281 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), ssn); 5282 5283 /* Disable interrupts for the queue. */ 5284 iwn_prph_clrbits(sc, IWN4965_SCHED_INTR_MASK, 1 << qid); 5285 5286 /* Mark the queue as inactive. */ 5287 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid), 5288 IWN4965_TXQ_STATUS_INACTIVE | iwn_tid2fifo[tid] << 1); 5289 } 5290 5291 static void 5292 iwn5000_ampdu_tx_start(struct iwn_softc *sc, struct ieee80211_node *ni, 5293 uint8_t tid, uint16_t ssn) 5294 { 5295 struct iwn_node *wn = (void *)ni; 5296 int qid = 10 + tid; 5297 5298 /* Stop TX scheduler while we're changing its configuration. */ 5299 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid), 5300 IWN5000_TXQ_STATUS_CHGACT); 5301 5302 /* Assign RA/TID translation to the queue. */ 5303 iwn_mem_write_2(sc, sc->sched_base + IWN5000_SCHED_TRANS_TBL(qid), 5304 wn->id << 4 | tid); 5305 5306 /* Enable chain-building mode for the queue. */ 5307 iwn_prph_setbits(sc, IWN5000_SCHED_QCHAIN_SEL, 1 << qid); 5308 5309 /* Enable aggregation for the queue. */ 5310 iwn_prph_setbits(sc, IWN5000_SCHED_AGGR_SEL, 1 << qid); 5311 5312 /* Set starting sequence number from the ADDBA request. */ 5313 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff)); 5314 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), ssn); 5315 5316 /* Set scheduler window size and frame limit. */ 5317 iwn_mem_write(sc, sc->sched_base + IWN5000_SCHED_QUEUE_OFFSET(qid) + 4, 5318 IWN_SCHED_LIMIT << 16 | IWN_SCHED_WINSZ); 5319 5320 /* Enable interrupts for the queue. */ 5321 iwn_prph_setbits(sc, IWN5000_SCHED_INTR_MASK, 1 << qid); 5322 5323 /* Mark the queue as active. */ 5324 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid), 5325 IWN5000_TXQ_STATUS_ACTIVE | iwn_tid2fifo[tid]); 5326 } 5327 5328 static void 5329 iwn5000_ampdu_tx_stop(struct iwn_softc *sc, uint8_t tid, uint16_t ssn) 5330 { 5331 int qid = 10 + tid; 5332 5333 /* Stop TX scheduler while we're changing its configuration. */ 5334 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid), 5335 IWN5000_TXQ_STATUS_CHGACT); 5336 5337 /* Disable aggregation for the queue. */ 5338 iwn_prph_clrbits(sc, IWN5000_SCHED_AGGR_SEL, 1 << qid); 5339 5340 /* Set starting sequence number from the ADDBA request. */ 5341 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | (ssn & 0xff)); 5342 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), ssn); 5343 5344 /* Disable interrupts for the queue. */ 5345 iwn_prph_clrbits(sc, IWN5000_SCHED_INTR_MASK, 1 << qid); 5346 5347 /* Mark the queue as inactive. */ 5348 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid), 5349 IWN5000_TXQ_STATUS_INACTIVE | iwn_tid2fifo[tid]); 5350 } 5351 #endif /* !IEEE80211_NO_HT */ 5352 5353 /* 5354 * Query calibration tables from the initialization firmware. We do this 5355 * only once at first boot. Called from a process context. 5356 */ 5357 static int 5358 iwn5000_query_calibration(struct iwn_softc *sc) 5359 { 5360 struct iwn5000_calib_config cmd; 5361 int error; 5362 5363 memset(&cmd, 0, sizeof cmd); 5364 cmd.ucode.once.enable = 0xffffffff; 5365 cmd.ucode.once.start = 0xffffffff; 5366 cmd.ucode.once.send = 0xffffffff; 5367 cmd.ucode.flags = 0xffffffff; 5368 DPRINTF(("sending calibration query\n")); 5369 error = iwn_cmd(sc, IWN5000_CMD_CALIB_CONFIG, &cmd, sizeof cmd, 0); 5370 if (error != 0) 5371 return error; 5372 5373 /* Wait at most two seconds for calibration to complete. */ 5374 if (!(sc->sc_flags & IWN_FLAG_CALIB_DONE)) 5375 error = tsleep(sc, PCATCH, "iwncal", 2 * hz); 5376 return error; 5377 } 5378 5379 /* 5380 * Send calibration results to the runtime firmware. These results were 5381 * obtained on first boot from the initialization firmware. 5382 */ 5383 static int 5384 iwn5000_send_calibration(struct iwn_softc *sc) 5385 { 5386 int idx, error; 5387 5388 for (idx = 0; idx < 5; idx++) { 5389 if (sc->calibcmd[idx].buf == NULL) 5390 continue; /* No results available. */ 5391 DPRINTF(("send calibration result idx=%d len=%d\n", 5392 idx, sc->calibcmd[idx].len)); 5393 error = iwn_cmd(sc, IWN_CMD_PHY_CALIB, sc->calibcmd[idx].buf, 5394 sc->calibcmd[idx].len, 0); 5395 if (error != 0) { 5396 aprint_error_dev(sc->sc_dev, 5397 "could not send calibration result\n"); 5398 return error; 5399 } 5400 } 5401 return 0; 5402 } 5403 5404 static int 5405 iwn5000_send_wimax_coex(struct iwn_softc *sc) 5406 { 5407 struct iwn5000_wimax_coex wimax; 5408 5409 #ifdef notyet 5410 if (sc->hw_type == IWN_HW_REV_TYPE_6050) { 5411 /* Enable WiMAX coexistence for combo adapters. */ 5412 wimax.flags = 5413 IWN_WIMAX_COEX_ASSOC_WA_UNMASK | 5414 IWN_WIMAX_COEX_UNASSOC_WA_UNMASK | 5415 IWN_WIMAX_COEX_STA_TABLE_VALID | 5416 IWN_WIMAX_COEX_ENABLE; 5417 memcpy(wimax.events, iwn6050_wimax_events, 5418 sizeof iwn6050_wimax_events); 5419 } else 5420 #endif 5421 { 5422 /* Disable WiMAX coexistence. */ 5423 wimax.flags = 0; 5424 memset(wimax.events, 0, sizeof wimax.events); 5425 } 5426 DPRINTF(("Configuring WiMAX coexistence\n")); 5427 return iwn_cmd(sc, IWN5000_CMD_WIMAX_COEX, &wimax, sizeof wimax, 0); 5428 } 5429 5430 static int 5431 iwn6000_temp_offset_calib(struct iwn_softc *sc) 5432 { 5433 struct iwn6000_phy_calib_temp_offset cmd; 5434 5435 memset(&cmd, 0, sizeof cmd); 5436 cmd.code = IWN6000_PHY_CALIB_TEMP_OFFSET; 5437 cmd.ngroups = 1; 5438 cmd.isvalid = 1; 5439 if (sc->eeprom_temp != 0) 5440 cmd.offset = htole16(sc->eeprom_temp); 5441 else 5442 cmd.offset = htole16(IWN_DEFAULT_TEMP_OFFSET); 5443 DPRINTF(("setting radio sensor offset to %d\n", le16toh(cmd.offset))); 5444 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0); 5445 } 5446 5447 static int 5448 iwn2000_temp_offset_calib(struct iwn_softc *sc) 5449 { 5450 struct iwn2000_phy_calib_temp_offset cmd; 5451 5452 memset(&cmd, 0, sizeof cmd); 5453 cmd.code = IWN2000_PHY_CALIB_TEMP_OFFSET; 5454 cmd.ngroups = 1; 5455 cmd.isvalid = 1; 5456 if (sc->eeprom_rawtemp != 0) { 5457 cmd.offset_low = htole16(sc->eeprom_rawtemp); 5458 cmd.offset_high = htole16(sc->eeprom_temp); 5459 } else { 5460 cmd.offset_low = htole16(IWN_DEFAULT_TEMP_OFFSET); 5461 cmd.offset_high = htole16(IWN_DEFAULT_TEMP_OFFSET); 5462 } 5463 cmd.burnt_voltage_ref = htole16(sc->eeprom_voltage); 5464 DPRINTF(("setting radio sensor offset to %d:%d, voltage to %d\n", 5465 le16toh(cmd.offset_low), le16toh(cmd.offset_high), 5466 le16toh(cmd.burnt_voltage_ref))); 5467 return iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0); 5468 } 5469 5470 /* 5471 * This function is called after the runtime firmware notifies us of its 5472 * readiness (called in a process context). 5473 */ 5474 static int 5475 iwn4965_post_alive(struct iwn_softc *sc) 5476 { 5477 int error, qid; 5478 5479 if ((error = iwn_nic_lock(sc)) != 0) 5480 return error; 5481 5482 /* Clear TX scheduler state in SRAM. */ 5483 sc->sched_base = iwn_prph_read(sc, IWN_SCHED_SRAM_ADDR); 5484 iwn_mem_set_region_4(sc, sc->sched_base + IWN4965_SCHED_CTX_OFF, 0, 5485 IWN4965_SCHED_CTX_LEN / sizeof (uint32_t)); 5486 5487 /* Set physical address of TX scheduler rings (1KB aligned). */ 5488 iwn_prph_write(sc, IWN4965_SCHED_DRAM_ADDR, sc->sched_dma.paddr >> 10); 5489 5490 IWN_SETBITS(sc, IWN_FH_TX_CHICKEN, IWN_FH_TX_CHICKEN_SCHED_RETRY); 5491 5492 /* Disable chain mode for all our 16 queues. */ 5493 iwn_prph_write(sc, IWN4965_SCHED_QCHAIN_SEL, 0); 5494 5495 for (qid = 0; qid < IWN4965_NTXQUEUES; qid++) { 5496 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_RDPTR(qid), 0); 5497 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | 0); 5498 5499 /* Set scheduler window size. */ 5500 iwn_mem_write(sc, sc->sched_base + 5501 IWN4965_SCHED_QUEUE_OFFSET(qid), IWN_SCHED_WINSZ); 5502 /* Set scheduler frame limit. */ 5503 iwn_mem_write(sc, sc->sched_base + 5504 IWN4965_SCHED_QUEUE_OFFSET(qid) + 4, 5505 IWN_SCHED_LIMIT << 16); 5506 } 5507 5508 /* Enable interrupts for all our 16 queues. */ 5509 iwn_prph_write(sc, IWN4965_SCHED_INTR_MASK, 0xffff); 5510 /* Identify TX FIFO rings (0-7). */ 5511 iwn_prph_write(sc, IWN4965_SCHED_TXFACT, 0xff); 5512 5513 /* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */ 5514 for (qid = 0; qid < 7; qid++) { 5515 static uint8_t qid2fifo[] = { 3, 2, 1, 0, 4, 5, 6 }; 5516 iwn_prph_write(sc, IWN4965_SCHED_QUEUE_STATUS(qid), 5517 IWN4965_TXQ_STATUS_ACTIVE | qid2fifo[qid] << 1); 5518 } 5519 iwn_nic_unlock(sc); 5520 return 0; 5521 } 5522 5523 /* 5524 * This function is called after the initialization or runtime firmware 5525 * notifies us of its readiness (called in a process context). 5526 */ 5527 static int 5528 iwn5000_post_alive(struct iwn_softc *sc) 5529 { 5530 int error, qid; 5531 5532 /* Switch to using ICT interrupt mode. */ 5533 iwn5000_ict_reset(sc); 5534 5535 if ((error = iwn_nic_lock(sc)) != 0) 5536 return error; 5537 5538 /* Clear TX scheduler state in SRAM. */ 5539 sc->sched_base = iwn_prph_read(sc, IWN_SCHED_SRAM_ADDR); 5540 iwn_mem_set_region_4(sc, sc->sched_base + IWN5000_SCHED_CTX_OFF, 0, 5541 IWN5000_SCHED_CTX_LEN / sizeof (uint32_t)); 5542 5543 /* Set physical address of TX scheduler rings (1KB aligned). */ 5544 iwn_prph_write(sc, IWN5000_SCHED_DRAM_ADDR, sc->sched_dma.paddr >> 10); 5545 5546 IWN_SETBITS(sc, IWN_FH_TX_CHICKEN, IWN_FH_TX_CHICKEN_SCHED_RETRY); 5547 5548 /* Enable chain mode for all queues, except command queue. */ 5549 iwn_prph_write(sc, IWN5000_SCHED_QCHAIN_SEL, 0xfffef); 5550 iwn_prph_write(sc, IWN5000_SCHED_AGGR_SEL, 0); 5551 5552 for (qid = 0; qid < IWN5000_NTXQUEUES; qid++) { 5553 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_RDPTR(qid), 0); 5554 IWN_WRITE(sc, IWN_HBUS_TARG_WRPTR, qid << 8 | 0); 5555 5556 iwn_mem_write(sc, sc->sched_base + 5557 IWN5000_SCHED_QUEUE_OFFSET(qid), 0); 5558 /* Set scheduler window size and frame limit. */ 5559 iwn_mem_write(sc, sc->sched_base + 5560 IWN5000_SCHED_QUEUE_OFFSET(qid) + 4, 5561 IWN_SCHED_LIMIT << 16 | IWN_SCHED_WINSZ); 5562 } 5563 5564 /* Enable interrupts for all our 20 queues. */ 5565 iwn_prph_write(sc, IWN5000_SCHED_INTR_MASK, 0xfffff); 5566 /* Identify TX FIFO rings (0-7). */ 5567 iwn_prph_write(sc, IWN5000_SCHED_TXFACT, 0xff); 5568 5569 /* Mark TX rings (4 EDCA + cmd + 2 HCCA) as active. */ 5570 for (qid = 0; qid < 7; qid++) { 5571 static uint8_t qid2fifo[] = { 3, 2, 1, 0, 7, 5, 6 }; 5572 iwn_prph_write(sc, IWN5000_SCHED_QUEUE_STATUS(qid), 5573 IWN5000_TXQ_STATUS_ACTIVE | qid2fifo[qid]); 5574 } 5575 iwn_nic_unlock(sc); 5576 5577 /* Configure WiMAX coexistence for combo adapters. */ 5578 error = iwn5000_send_wimax_coex(sc); 5579 if (error != 0) { 5580 aprint_error_dev(sc->sc_dev, 5581 "could not configure WiMAX coexistence\n"); 5582 return error; 5583 } 5584 if (sc->hw_type != IWN_HW_REV_TYPE_5150) { 5585 struct iwn5000_phy_calib_crystal cmd; 5586 5587 /* Perform crystal calibration. */ 5588 memset(&cmd, 0, sizeof cmd); 5589 cmd.code = IWN5000_PHY_CALIB_CRYSTAL; 5590 cmd.ngroups = 1; 5591 cmd.isvalid = 1; 5592 cmd.cap_pin[0] = le32toh(sc->eeprom_crystal) & 0xff; 5593 cmd.cap_pin[1] = (le32toh(sc->eeprom_crystal) >> 16) & 0xff; 5594 DPRINTF(("sending crystal calibration %d, %d\n", 5595 cmd.cap_pin[0], cmd.cap_pin[1])); 5596 error = iwn_cmd(sc, IWN_CMD_PHY_CALIB, &cmd, sizeof cmd, 0); 5597 if (error != 0) { 5598 aprint_error_dev(sc->sc_dev, 5599 "crystal calibration failed\n"); 5600 return error; 5601 } 5602 } 5603 if (!(sc->sc_flags & IWN_FLAG_CALIB_DONE)) { 5604 /* Query calibration from the initialization firmware. */ 5605 if ((error = iwn5000_query_calibration(sc)) != 0) { 5606 aprint_error_dev(sc->sc_dev, 5607 "could not query calibration\n"); 5608 return error; 5609 } 5610 /* 5611 * We have the calibration results now, reboot with the 5612 * runtime firmware (call ourselves recursively!) 5613 */ 5614 iwn_hw_stop(sc); 5615 error = iwn_hw_init(sc); 5616 } else { 5617 /* Send calibration results to runtime firmware. */ 5618 error = iwn5000_send_calibration(sc); 5619 } 5620 return error; 5621 } 5622 5623 /* 5624 * The firmware boot code is small and is intended to be copied directly into 5625 * the NIC internal memory (no DMA transfer). 5626 */ 5627 static int 5628 iwn4965_load_bootcode(struct iwn_softc *sc, const uint8_t *ucode, int size) 5629 { 5630 int error, ntries; 5631 5632 size /= sizeof (uint32_t); 5633 5634 if ((error = iwn_nic_lock(sc)) != 0) 5635 return error; 5636 5637 /* Copy microcode image into NIC memory. */ 5638 iwn_prph_write_region_4(sc, IWN_BSM_SRAM_BASE, 5639 (const uint32_t *)ucode, size); 5640 5641 iwn_prph_write(sc, IWN_BSM_WR_MEM_SRC, 0); 5642 iwn_prph_write(sc, IWN_BSM_WR_MEM_DST, IWN_FW_TEXT_BASE); 5643 iwn_prph_write(sc, IWN_BSM_WR_DWCOUNT, size); 5644 5645 /* Start boot load now. */ 5646 iwn_prph_write(sc, IWN_BSM_WR_CTRL, IWN_BSM_WR_CTRL_START); 5647 5648 /* Wait for transfer to complete. */ 5649 for (ntries = 0; ntries < 1000; ntries++) { 5650 if (!(iwn_prph_read(sc, IWN_BSM_WR_CTRL) & 5651 IWN_BSM_WR_CTRL_START)) 5652 break; 5653 DELAY(10); 5654 } 5655 if (ntries == 1000) { 5656 aprint_error_dev(sc->sc_dev, 5657 "could not load boot firmware\n"); 5658 iwn_nic_unlock(sc); 5659 return ETIMEDOUT; 5660 } 5661 5662 /* Enable boot after power up. */ 5663 iwn_prph_write(sc, IWN_BSM_WR_CTRL, IWN_BSM_WR_CTRL_START_EN); 5664 5665 iwn_nic_unlock(sc); 5666 return 0; 5667 } 5668 5669 static int 5670 iwn4965_load_firmware(struct iwn_softc *sc) 5671 { 5672 struct iwn_fw_info *fw = &sc->fw; 5673 struct iwn_dma_info *dma = &sc->fw_dma; 5674 int error; 5675 5676 /* Copy initialization sections into pre-allocated DMA-safe memory. */ 5677 memcpy(dma->vaddr, fw->init.data, fw->init.datasz); 5678 bus_dmamap_sync(sc->sc_dmat, dma->map, 0, fw->init.datasz, 5679 BUS_DMASYNC_PREWRITE); 5680 memcpy((char *)dma->vaddr + IWN4965_FW_DATA_MAXSZ, 5681 fw->init.text, fw->init.textsz); 5682 bus_dmamap_sync(sc->sc_dmat, dma->map, IWN4965_FW_DATA_MAXSZ, 5683 fw->init.textsz, BUS_DMASYNC_PREWRITE); 5684 5685 /* Tell adapter where to find initialization sections. */ 5686 if ((error = iwn_nic_lock(sc)) != 0) 5687 return error; 5688 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_ADDR, dma->paddr >> 4); 5689 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_SIZE, fw->init.datasz); 5690 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_ADDR, 5691 (dma->paddr + IWN4965_FW_DATA_MAXSZ) >> 4); 5692 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_SIZE, fw->init.textsz); 5693 iwn_nic_unlock(sc); 5694 5695 /* Load firmware boot code. */ 5696 error = iwn4965_load_bootcode(sc, fw->boot.text, fw->boot.textsz); 5697 if (error != 0) { 5698 aprint_error_dev(sc->sc_dev, 5699 "could not load boot firmware\n"); 5700 return error; 5701 } 5702 /* Now press "execute". */ 5703 IWN_WRITE(sc, IWN_RESET, 0); 5704 5705 /* Wait at most one second for first alive notification. */ 5706 if ((error = tsleep(sc, PCATCH, "iwninit", hz)) != 0) { 5707 aprint_error_dev(sc->sc_dev, 5708 "timeout waiting for adapter to initialize\n"); 5709 return error; 5710 } 5711 5712 /* Retrieve current temperature for initial TX power calibration. */ 5713 sc->rawtemp = sc->ucode_info.temp[3].chan20MHz; 5714 sc->temp = iwn4965_get_temperature(sc); 5715 5716 /* Copy runtime sections into pre-allocated DMA-safe memory. */ 5717 memcpy(dma->vaddr, fw->main.data, fw->main.datasz); 5718 bus_dmamap_sync(sc->sc_dmat, dma->map, 0, fw->main.datasz, 5719 BUS_DMASYNC_PREWRITE); 5720 memcpy((char *)dma->vaddr + IWN4965_FW_DATA_MAXSZ, 5721 fw->main.text, fw->main.textsz); 5722 bus_dmamap_sync(sc->sc_dmat, dma->map, IWN4965_FW_DATA_MAXSZ, 5723 fw->main.textsz, BUS_DMASYNC_PREWRITE); 5724 5725 /* Tell adapter where to find runtime sections. */ 5726 if ((error = iwn_nic_lock(sc)) != 0) 5727 return error; 5728 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_ADDR, dma->paddr >> 4); 5729 iwn_prph_write(sc, IWN_BSM_DRAM_DATA_SIZE, fw->main.datasz); 5730 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_ADDR, 5731 (dma->paddr + IWN4965_FW_DATA_MAXSZ) >> 4); 5732 iwn_prph_write(sc, IWN_BSM_DRAM_TEXT_SIZE, 5733 IWN_FW_UPDATED | fw->main.textsz); 5734 iwn_nic_unlock(sc); 5735 5736 return 0; 5737 } 5738 5739 static int 5740 iwn5000_load_firmware_section(struct iwn_softc *sc, uint32_t dst, 5741 const uint8_t *section, int size) 5742 { 5743 struct iwn_dma_info *dma = &sc->fw_dma; 5744 int error; 5745 5746 /* Copy firmware section into pre-allocated DMA-safe memory. */ 5747 memcpy(dma->vaddr, section, size); 5748 bus_dmamap_sync(sc->sc_dmat, dma->map, 0, size, BUS_DMASYNC_PREWRITE); 5749 5750 if ((error = iwn_nic_lock(sc)) != 0) 5751 return error; 5752 5753 IWN_WRITE(sc, IWN_FH_TX_CONFIG(IWN_SRVC_DMACHNL), 5754 IWN_FH_TX_CONFIG_DMA_PAUSE); 5755 5756 IWN_WRITE(sc, IWN_FH_SRAM_ADDR(IWN_SRVC_DMACHNL), dst); 5757 IWN_WRITE(sc, IWN_FH_TFBD_CTRL0(IWN_SRVC_DMACHNL), 5758 IWN_LOADDR(dma->paddr)); 5759 IWN_WRITE(sc, IWN_FH_TFBD_CTRL1(IWN_SRVC_DMACHNL), 5760 IWN_HIADDR(dma->paddr) << 28 | size); 5761 IWN_WRITE(sc, IWN_FH_TXBUF_STATUS(IWN_SRVC_DMACHNL), 5762 IWN_FH_TXBUF_STATUS_TBNUM(1) | 5763 IWN_FH_TXBUF_STATUS_TBIDX(1) | 5764 IWN_FH_TXBUF_STATUS_TFBD_VALID); 5765 5766 /* Kick Flow Handler to start DMA transfer. */ 5767 IWN_WRITE(sc, IWN_FH_TX_CONFIG(IWN_SRVC_DMACHNL), 5768 IWN_FH_TX_CONFIG_DMA_ENA | IWN_FH_TX_CONFIG_CIRQ_HOST_ENDTFD); 5769 5770 iwn_nic_unlock(sc); 5771 5772 /* Wait at most five seconds for FH DMA transfer to complete. */ 5773 return tsleep(sc, PCATCH, "iwninit", 5 * hz); 5774 } 5775 5776 static int 5777 iwn5000_load_firmware(struct iwn_softc *sc) 5778 { 5779 struct iwn_fw_part *fw; 5780 int error; 5781 5782 /* Load the initialization firmware on first boot only. */ 5783 fw = (sc->sc_flags & IWN_FLAG_CALIB_DONE) ? 5784 &sc->fw.main : &sc->fw.init; 5785 5786 error = iwn5000_load_firmware_section(sc, IWN_FW_TEXT_BASE, 5787 fw->text, fw->textsz); 5788 if (error != 0) { 5789 aprint_error_dev(sc->sc_dev, 5790 "could not load firmware %s section\n", ".text"); 5791 return error; 5792 } 5793 error = iwn5000_load_firmware_section(sc, IWN_FW_DATA_BASE, 5794 fw->data, fw->datasz); 5795 if (error != 0) { 5796 aprint_error_dev(sc->sc_dev, 5797 "could not load firmware %s section\n", ".data"); 5798 return error; 5799 } 5800 5801 /* Now press "execute". */ 5802 IWN_WRITE(sc, IWN_RESET, 0); 5803 return 0; 5804 } 5805 5806 /* 5807 * Extract text and data sections from a legacy firmware image. 5808 */ 5809 static int 5810 iwn_read_firmware_leg(struct iwn_softc *sc, struct iwn_fw_info *fw) 5811 { 5812 const uint32_t *ptr; 5813 size_t hdrlen = 24; 5814 uint32_t rev; 5815 5816 ptr = (const uint32_t *)fw->data; 5817 rev = le32toh(*ptr++); 5818 5819 sc->ucode_rev = rev; 5820 5821 /* Check firmware API version. */ 5822 if (IWN_FW_API(rev) <= 1) { 5823 aprint_error_dev(sc->sc_dev, 5824 "bad firmware, need API version >=2\n"); 5825 return EINVAL; 5826 } 5827 if (IWN_FW_API(rev) >= 3) { 5828 /* Skip build number (version 2 header). */ 5829 hdrlen += 4; 5830 ptr++; 5831 } 5832 if (fw->size < hdrlen) { 5833 aprint_error_dev(sc->sc_dev, 5834 "firmware too short: %zd bytes\n", fw->size); 5835 return EINVAL; 5836 } 5837 fw->main.textsz = le32toh(*ptr++); 5838 fw->main.datasz = le32toh(*ptr++); 5839 fw->init.textsz = le32toh(*ptr++); 5840 fw->init.datasz = le32toh(*ptr++); 5841 fw->boot.textsz = le32toh(*ptr++); 5842 5843 /* Check that all firmware sections fit. */ 5844 if (fw->size < hdrlen + fw->main.textsz + fw->main.datasz + 5845 fw->init.textsz + fw->init.datasz + fw->boot.textsz) { 5846 aprint_error_dev(sc->sc_dev, 5847 "firmware too short: %zd bytes\n", fw->size); 5848 return EINVAL; 5849 } 5850 5851 /* Get pointers to firmware sections. */ 5852 fw->main.text = (const uint8_t *)ptr; 5853 fw->main.data = fw->main.text + fw->main.textsz; 5854 fw->init.text = fw->main.data + fw->main.datasz; 5855 fw->init.data = fw->init.text + fw->init.textsz; 5856 fw->boot.text = fw->init.data + fw->init.datasz; 5857 return 0; 5858 } 5859 5860 /* 5861 * Extract text and data sections from a TLV firmware image. 5862 */ 5863 static int 5864 iwn_read_firmware_tlv(struct iwn_softc *sc, struct iwn_fw_info *fw, 5865 uint16_t alt) 5866 { 5867 const struct iwn_fw_tlv_hdr *hdr; 5868 const struct iwn_fw_tlv *tlv; 5869 const uint8_t *ptr, *end; 5870 uint64_t altmask; 5871 uint32_t len; 5872 5873 if (fw->size < sizeof (*hdr)) { 5874 aprint_error_dev(sc->sc_dev, 5875 "firmware too short: %zd bytes\n", fw->size); 5876 return EINVAL; 5877 } 5878 hdr = (const struct iwn_fw_tlv_hdr *)fw->data; 5879 if (hdr->signature != htole32(IWN_FW_SIGNATURE)) { 5880 aprint_error_dev(sc->sc_dev, 5881 "bad firmware signature 0x%08x\n", le32toh(hdr->signature)); 5882 return EINVAL; 5883 } 5884 DPRINTF(("FW: \"%.64s\", build 0x%x\n", hdr->descr, 5885 le32toh(hdr->build))); 5886 sc->ucode_rev = le32toh(hdr->rev); 5887 5888 /* 5889 * Select the closest supported alternative that is less than 5890 * or equal to the specified one. 5891 */ 5892 altmask = le64toh(hdr->altmask); 5893 while (alt > 0 && !(altmask & (1ULL << alt))) 5894 alt--; /* Downgrade. */ 5895 DPRINTF(("using alternative %d\n", alt)); 5896 5897 ptr = (const uint8_t *)(hdr + 1); 5898 end = (const uint8_t *)(fw->data + fw->size); 5899 5900 /* Parse type-length-value fields. */ 5901 while (ptr + sizeof (*tlv) <= end) { 5902 tlv = (const struct iwn_fw_tlv *)ptr; 5903 len = le32toh(tlv->len); 5904 5905 ptr += sizeof (*tlv); 5906 if (ptr + len > end) { 5907 aprint_error_dev(sc->sc_dev, 5908 "firmware too short: %zd bytes\n", fw->size); 5909 return EINVAL; 5910 } 5911 /* Skip other alternatives. */ 5912 if (tlv->alt != 0 && tlv->alt != htole16(alt)) 5913 goto next; 5914 5915 switch (le16toh(tlv->type)) { 5916 case IWN_FW_TLV_MAIN_TEXT: 5917 fw->main.text = ptr; 5918 fw->main.textsz = len; 5919 break; 5920 case IWN_FW_TLV_MAIN_DATA: 5921 fw->main.data = ptr; 5922 fw->main.datasz = len; 5923 break; 5924 case IWN_FW_TLV_INIT_TEXT: 5925 fw->init.text = ptr; 5926 fw->init.textsz = len; 5927 break; 5928 case IWN_FW_TLV_INIT_DATA: 5929 fw->init.data = ptr; 5930 fw->init.datasz = len; 5931 break; 5932 case IWN_FW_TLV_BOOT_TEXT: 5933 fw->boot.text = ptr; 5934 fw->boot.textsz = len; 5935 break; 5936 case IWN_FW_TLV_ENH_SENS: 5937 if (len != 0) { 5938 aprint_error_dev(sc->sc_dev, 5939 "TLV type %d has invalid size %u\n", 5940 le16toh(tlv->type), len); 5941 goto next; 5942 } 5943 sc->sc_flags |= IWN_FLAG_ENH_SENS; 5944 break; 5945 case IWN_FW_TLV_PHY_CALIB: 5946 if (len != sizeof(uint32_t)) { 5947 aprint_error_dev(sc->sc_dev, 5948 "TLV type %d has invalid size %u\n", 5949 le16toh(tlv->type), len); 5950 goto next; 5951 } 5952 if (le32toh(*ptr) <= IWN5000_PHY_CALIB_MAX) { 5953 sc->reset_noise_gain = le32toh(*ptr); 5954 sc->noise_gain = le32toh(*ptr) + 1; 5955 } 5956 break; 5957 case IWN_FW_TLV_FLAGS: 5958 if (len < sizeof(uint32_t)) 5959 break; 5960 if (len % sizeof(uint32_t)) 5961 break; 5962 sc->tlv_feature_flags = le32toh(*ptr); 5963 DPRINTF(("feature: 0x%08x\n", sc->tlv_feature_flags)); 5964 break; 5965 default: 5966 DPRINTF(("TLV type %d not handled\n", 5967 le16toh(tlv->type))); 5968 break; 5969 } 5970 next: /* TLV fields are 32-bit aligned. */ 5971 ptr += (len + 3) & ~3; 5972 } 5973 return 0; 5974 } 5975 5976 static int 5977 iwn_read_firmware(struct iwn_softc *sc) 5978 { 5979 struct iwn_fw_info *fw = &sc->fw; 5980 firmware_handle_t fwh; 5981 int error; 5982 5983 /* 5984 * Some PHY calibration commands are firmware-dependent; these 5985 * are the default values that will be overridden if 5986 * necessary. 5987 */ 5988 sc->reset_noise_gain = IWN5000_PHY_CALIB_RESET_NOISE_GAIN; 5989 sc->noise_gain = IWN5000_PHY_CALIB_NOISE_GAIN; 5990 5991 /* Initialize for error returns */ 5992 fw->data = NULL; 5993 fw->size = 0; 5994 5995 /* Open firmware image. */ 5996 if ((error = firmware_open("if_iwn", sc->fwname, &fwh)) != 0) { 5997 aprint_error_dev(sc->sc_dev, 5998 "could not get firmware handle %s\n", sc->fwname); 5999 return error; 6000 } 6001 fw->size = firmware_get_size(fwh); 6002 if (fw->size < sizeof (uint32_t)) { 6003 aprint_error_dev(sc->sc_dev, 6004 "firmware too short: %zd bytes\n", fw->size); 6005 firmware_close(fwh); 6006 return EINVAL; 6007 } 6008 6009 /* Read the firmware. */ 6010 fw->data = firmware_malloc(fw->size); 6011 if (fw->data == NULL) { 6012 aprint_error_dev(sc->sc_dev, 6013 "not enough memory to stock firmware %s\n", sc->fwname); 6014 firmware_close(fwh); 6015 return ENOMEM; 6016 } 6017 error = firmware_read(fwh, 0, fw->data, fw->size); 6018 firmware_close(fwh); 6019 if (error != 0) { 6020 aprint_error_dev(sc->sc_dev, 6021 "could not read firmware %s\n", sc->fwname); 6022 goto out; 6023 } 6024 6025 /* Retrieve text and data sections. */ 6026 if (*(const uint32_t *)fw->data != 0) /* Legacy image. */ 6027 error = iwn_read_firmware_leg(sc, fw); 6028 else 6029 error = iwn_read_firmware_tlv(sc, fw, 1); 6030 if (error != 0) { 6031 aprint_error_dev(sc->sc_dev, 6032 "could not read firmware sections\n"); 6033 goto out; 6034 } 6035 6036 /* Make sure text and data sections fit in hardware memory. */ 6037 if (fw->main.textsz > sc->fw_text_maxsz || 6038 fw->main.datasz > sc->fw_data_maxsz || 6039 fw->init.textsz > sc->fw_text_maxsz || 6040 fw->init.datasz > sc->fw_data_maxsz || 6041 fw->boot.textsz > IWN_FW_BOOT_TEXT_MAXSZ || 6042 (fw->boot.textsz & 3) != 0) { 6043 aprint_error_dev(sc->sc_dev, 6044 "firmware sections too large\n"); 6045 goto out; 6046 } 6047 6048 /* We can proceed with loading the firmware. */ 6049 return 0; 6050 out: 6051 firmware_free(fw->data, fw->size); 6052 fw->data = NULL; 6053 fw->size = 0; 6054 return error ? error : EINVAL; 6055 } 6056 6057 static int 6058 iwn_clock_wait(struct iwn_softc *sc) 6059 { 6060 int ntries; 6061 6062 /* Set "initialization complete" bit. */ 6063 IWN_SETBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_INIT_DONE); 6064 6065 /* Wait for clock stabilization. */ 6066 for (ntries = 0; ntries < 2500; ntries++) { 6067 if (IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_MAC_CLOCK_READY) 6068 return 0; 6069 DELAY(10); 6070 } 6071 aprint_error_dev(sc->sc_dev, 6072 "timeout waiting for clock stabilization\n"); 6073 return ETIMEDOUT; 6074 } 6075 6076 static int 6077 iwn_apm_init(struct iwn_softc *sc) 6078 { 6079 pcireg_t reg; 6080 int error; 6081 6082 /* Disable L0s exit timer (NMI bug workaround). */ 6083 IWN_SETBITS(sc, IWN_GIO_CHICKEN, IWN_GIO_CHICKEN_DIS_L0S_TIMER); 6084 /* Don't wait for ICH L0s (ICH bug workaround). */ 6085 IWN_SETBITS(sc, IWN_GIO_CHICKEN, IWN_GIO_CHICKEN_L1A_NO_L0S_RX); 6086 6087 /* Set FH wait threshold to max (HW bug under stress workaround). */ 6088 IWN_SETBITS(sc, IWN_DBG_HPET_MEM, 0xffff0000); 6089 6090 /* Enable HAP INTA to move adapter from L1a to L0s. */ 6091 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_HAP_WAKE_L1A); 6092 6093 /* Retrieve PCIe Active State Power Management (ASPM). */ 6094 reg = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 6095 sc->sc_cap_off + PCIE_LCSR); 6096 /* Workaround for HW instability in PCIe L0->L0s->L1 transition. */ 6097 if (reg & PCIE_LCSR_ASPM_L1) /* L1 Entry enabled. */ 6098 IWN_SETBITS(sc, IWN_GIO, IWN_GIO_L0S_ENA); 6099 else 6100 IWN_CLRBITS(sc, IWN_GIO, IWN_GIO_L0S_ENA); 6101 6102 if (sc->hw_type != IWN_HW_REV_TYPE_4965 && 6103 sc->hw_type <= IWN_HW_REV_TYPE_1000) 6104 IWN_SETBITS(sc, IWN_ANA_PLL, IWN_ANA_PLL_INIT); 6105 6106 /* Wait for clock stabilization before accessing prph. */ 6107 if ((error = iwn_clock_wait(sc)) != 0) 6108 return error; 6109 6110 if ((error = iwn_nic_lock(sc)) != 0) 6111 return error; 6112 if (sc->hw_type == IWN_HW_REV_TYPE_4965) { 6113 /* Enable DMA and BSM (Bootstrap State Machine). */ 6114 iwn_prph_write(sc, IWN_APMG_CLK_EN, 6115 IWN_APMG_CLK_CTRL_DMA_CLK_RQT | 6116 IWN_APMG_CLK_CTRL_BSM_CLK_RQT); 6117 } else { 6118 /* Enable DMA. */ 6119 iwn_prph_write(sc, IWN_APMG_CLK_EN, 6120 IWN_APMG_CLK_CTRL_DMA_CLK_RQT); 6121 } 6122 DELAY(20); 6123 /* Disable L1-Active. */ 6124 iwn_prph_setbits(sc, IWN_APMG_PCI_STT, IWN_APMG_PCI_STT_L1A_DIS); 6125 iwn_nic_unlock(sc); 6126 6127 return 0; 6128 } 6129 6130 static void 6131 iwn_apm_stop_master(struct iwn_softc *sc) 6132 { 6133 int ntries; 6134 6135 /* Stop busmaster DMA activity. */ 6136 IWN_SETBITS(sc, IWN_RESET, IWN_RESET_STOP_MASTER); 6137 for (ntries = 0; ntries < 100; ntries++) { 6138 if (IWN_READ(sc, IWN_RESET) & IWN_RESET_MASTER_DISABLED) 6139 return; 6140 DELAY(10); 6141 } 6142 aprint_error_dev(sc->sc_dev, "timeout waiting for master\n"); 6143 } 6144 6145 static void 6146 iwn_apm_stop(struct iwn_softc *sc) 6147 { 6148 iwn_apm_stop_master(sc); 6149 6150 /* Reset the entire device. */ 6151 IWN_SETBITS(sc, IWN_RESET, IWN_RESET_SW); 6152 DELAY(10); 6153 /* Clear "initialization complete" bit. */ 6154 IWN_CLRBITS(sc, IWN_GP_CNTRL, IWN_GP_CNTRL_INIT_DONE); 6155 } 6156 6157 static int 6158 iwn4965_nic_config(struct iwn_softc *sc) 6159 { 6160 if (IWN_RFCFG_TYPE(sc->rfcfg) == 1) { 6161 /* 6162 * I don't believe this to be correct but this is what the 6163 * vendor driver is doing. Probably the bits should not be 6164 * shifted in IWN_RFCFG_*. 6165 */ 6166 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, 6167 IWN_RFCFG_TYPE(sc->rfcfg) | 6168 IWN_RFCFG_STEP(sc->rfcfg) | 6169 IWN_RFCFG_DASH(sc->rfcfg)); 6170 } 6171 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, 6172 IWN_HW_IF_CONFIG_RADIO_SI | IWN_HW_IF_CONFIG_MAC_SI); 6173 return 0; 6174 } 6175 6176 static int 6177 iwn5000_nic_config(struct iwn_softc *sc) 6178 { 6179 uint32_t tmp; 6180 int error; 6181 6182 if (IWN_RFCFG_TYPE(sc->rfcfg) < 3) { 6183 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, 6184 IWN_RFCFG_TYPE(sc->rfcfg) | 6185 IWN_RFCFG_STEP(sc->rfcfg) | 6186 IWN_RFCFG_DASH(sc->rfcfg)); 6187 } 6188 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, 6189 IWN_HW_IF_CONFIG_RADIO_SI | IWN_HW_IF_CONFIG_MAC_SI); 6190 6191 if ((error = iwn_nic_lock(sc)) != 0) 6192 return error; 6193 iwn_prph_setbits(sc, IWN_APMG_PS, IWN_APMG_PS_EARLY_PWROFF_DIS); 6194 6195 if (sc->hw_type == IWN_HW_REV_TYPE_1000) { 6196 /* 6197 * Select first Switching Voltage Regulator (1.32V) to 6198 * solve a stability issue related to noisy DC2DC line 6199 * in the silicon of 1000 Series. 6200 */ 6201 tmp = iwn_prph_read(sc, IWN_APMG_DIGITAL_SVR); 6202 tmp &= ~IWN_APMG_DIGITAL_SVR_VOLTAGE_MASK; 6203 tmp |= IWN_APMG_DIGITAL_SVR_VOLTAGE_1_32; 6204 iwn_prph_write(sc, IWN_APMG_DIGITAL_SVR, tmp); 6205 } 6206 iwn_nic_unlock(sc); 6207 6208 if (sc->sc_flags & IWN_FLAG_INTERNAL_PA) { 6209 /* Use internal power amplifier only. */ 6210 IWN_WRITE(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_RADIO_2X2_IPA); 6211 } 6212 if ((sc->hw_type == IWN_HW_REV_TYPE_6050 || 6213 sc->hw_type == IWN_HW_REV_TYPE_6005) && sc->calib_ver >= 6) { 6214 /* Indicate that ROM calibration version is >=6. */ 6215 IWN_SETBITS(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_CALIB_VER6); 6216 } 6217 if (sc->hw_type == IWN_HW_REV_TYPE_6005) 6218 IWN_SETBITS(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_6050_1X2); 6219 if (sc->hw_type == IWN_HW_REV_TYPE_2030 || 6220 sc->hw_type == IWN_HW_REV_TYPE_2000 || 6221 sc->hw_type == IWN_HW_REV_TYPE_135 || 6222 sc->hw_type == IWN_HW_REV_TYPE_105) 6223 IWN_SETBITS(sc, IWN_GP_DRIVER, IWN_GP_DRIVER_RADIO_IQ_INVERT); 6224 return 0; 6225 } 6226 6227 /* 6228 * Take NIC ownership over Intel Active Management Technology (AMT). 6229 */ 6230 static int 6231 iwn_hw_prepare(struct iwn_softc *sc) 6232 { 6233 int ntries; 6234 6235 /* Check if hardware is ready. */ 6236 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_NIC_READY); 6237 for (ntries = 0; ntries < 5; ntries++) { 6238 if (IWN_READ(sc, IWN_HW_IF_CONFIG) & 6239 IWN_HW_IF_CONFIG_NIC_READY) 6240 return 0; 6241 DELAY(10); 6242 } 6243 6244 /* Hardware not ready, force into ready state. */ 6245 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_PREPARE); 6246 for (ntries = 0; ntries < 15000; ntries++) { 6247 if (!(IWN_READ(sc, IWN_HW_IF_CONFIG) & 6248 IWN_HW_IF_CONFIG_PREPARE_DONE)) 6249 break; 6250 DELAY(10); 6251 } 6252 if (ntries == 15000) 6253 return ETIMEDOUT; 6254 6255 /* Hardware should be ready now. */ 6256 IWN_SETBITS(sc, IWN_HW_IF_CONFIG, IWN_HW_IF_CONFIG_NIC_READY); 6257 for (ntries = 0; ntries < 5; ntries++) { 6258 if (IWN_READ(sc, IWN_HW_IF_CONFIG) & 6259 IWN_HW_IF_CONFIG_NIC_READY) 6260 return 0; 6261 DELAY(10); 6262 } 6263 return ETIMEDOUT; 6264 } 6265 6266 static int 6267 iwn_hw_init(struct iwn_softc *sc) 6268 { 6269 struct iwn_ops *ops = &sc->ops; 6270 int error, chnl, qid; 6271 6272 /* Clear pending interrupts. */ 6273 IWN_WRITE(sc, IWN_INT, 0xffffffff); 6274 6275 if ((error = iwn_apm_init(sc)) != 0) { 6276 aprint_error_dev(sc->sc_dev, 6277 "could not power ON adapter\n"); 6278 return error; 6279 } 6280 6281 /* Select VMAIN power source. */ 6282 if ((error = iwn_nic_lock(sc)) != 0) 6283 return error; 6284 iwn_prph_clrbits(sc, IWN_APMG_PS, IWN_APMG_PS_PWR_SRC_MASK); 6285 iwn_nic_unlock(sc); 6286 6287 /* Perform adapter-specific initialization. */ 6288 if ((error = ops->nic_config(sc)) != 0) 6289 return error; 6290 6291 /* Initialize RX ring. */ 6292 if ((error = iwn_nic_lock(sc)) != 0) 6293 return error; 6294 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 0); 6295 IWN_WRITE(sc, IWN_FH_RX_WPTR, 0); 6296 /* Set physical address of RX ring (256-byte aligned). */ 6297 IWN_WRITE(sc, IWN_FH_RX_BASE, sc->rxq.desc_dma.paddr >> 8); 6298 /* Set physical address of RX status (16-byte aligned). */ 6299 IWN_WRITE(sc, IWN_FH_STATUS_WPTR, sc->rxq.stat_dma.paddr >> 4); 6300 /* Enable RX. */ 6301 IWN_WRITE(sc, IWN_FH_RX_CONFIG, 6302 IWN_FH_RX_CONFIG_ENA | 6303 IWN_FH_RX_CONFIG_IGN_RXF_EMPTY | /* HW bug workaround */ 6304 IWN_FH_RX_CONFIG_IRQ_DST_HOST | 6305 IWN_FH_RX_CONFIG_SINGLE_FRAME | 6306 IWN_FH_RX_CONFIG_RB_TIMEOUT(0) | 6307 IWN_FH_RX_CONFIG_NRBD(IWN_RX_RING_COUNT_LOG)); 6308 iwn_nic_unlock(sc); 6309 IWN_WRITE(sc, IWN_FH_RX_WPTR, (IWN_RX_RING_COUNT - 1) & ~7); 6310 6311 if ((error = iwn_nic_lock(sc)) != 0) 6312 return error; 6313 6314 /* Initialize TX scheduler. */ 6315 iwn_prph_write(sc, sc->sched_txfact_addr, 0); 6316 6317 /* Set physical address of "keep warm" page (16-byte aligned). */ 6318 IWN_WRITE(sc, IWN_FH_KW_ADDR, sc->kw_dma.paddr >> 4); 6319 6320 /* Initialize TX rings. */ 6321 for (qid = 0; qid < sc->ntxqs; qid++) { 6322 struct iwn_tx_ring *txq = &sc->txq[qid]; 6323 6324 /* Set physical address of TX ring (256-byte aligned). */ 6325 IWN_WRITE(sc, IWN_FH_CBBC_QUEUE(qid), 6326 txq->desc_dma.paddr >> 8); 6327 } 6328 iwn_nic_unlock(sc); 6329 6330 /* Enable DMA channels. */ 6331 for (chnl = 0; chnl < sc->ndmachnls; chnl++) { 6332 IWN_WRITE(sc, IWN_FH_TX_CONFIG(chnl), 6333 IWN_FH_TX_CONFIG_DMA_ENA | 6334 IWN_FH_TX_CONFIG_DMA_CREDIT_ENA); 6335 } 6336 6337 /* Clear "radio off" and "commands blocked" bits. */ 6338 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL); 6339 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_CMD_BLOCKED); 6340 6341 /* Clear pending interrupts. */ 6342 IWN_WRITE(sc, IWN_INT, 0xffffffff); 6343 /* Enable interrupt coalescing. */ 6344 IWN_WRITE(sc, IWN_INT_COALESCING, 512 / 8); 6345 /* Enable interrupts. */ 6346 IWN_WRITE(sc, IWN_INT_MASK, sc->int_mask); 6347 6348 /* _Really_ make sure "radio off" bit is cleared! */ 6349 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL); 6350 IWN_WRITE(sc, IWN_UCODE_GP1_CLR, IWN_UCODE_GP1_RFKILL); 6351 6352 /* Enable shadow registers. */ 6353 if (sc->hw_type >= IWN_HW_REV_TYPE_6000) 6354 IWN_SETBITS(sc, IWN_SHADOW_REG_CTRL, 0x800fffff); 6355 6356 if ((error = ops->load_firmware(sc)) != 0) { 6357 aprint_error_dev(sc->sc_dev, 6358 "could not load firmware\n"); 6359 return error; 6360 } 6361 /* Wait at most one second for firmware alive notification. */ 6362 if ((error = tsleep(sc, PCATCH, "iwninit", hz)) != 0) { 6363 aprint_error_dev(sc->sc_dev, 6364 "timeout waiting for adapter to initialize\n"); 6365 return error; 6366 } 6367 /* Do post-firmware initialization. */ 6368 return ops->post_alive(sc); 6369 } 6370 6371 static void 6372 iwn_hw_stop(struct iwn_softc *sc) 6373 { 6374 int chnl, qid, ntries; 6375 6376 IWN_WRITE(sc, IWN_RESET, IWN_RESET_NEVO); 6377 6378 /* Disable interrupts. */ 6379 IWN_WRITE(sc, IWN_INT_MASK, 0); 6380 IWN_WRITE(sc, IWN_INT, 0xffffffff); 6381 IWN_WRITE(sc, IWN_FH_INT, 0xffffffff); 6382 sc->sc_flags &= ~IWN_FLAG_USE_ICT; 6383 6384 /* Make sure we no longer hold the NIC lock. */ 6385 iwn_nic_unlock(sc); 6386 6387 /* Stop TX scheduler. */ 6388 iwn_prph_write(sc, sc->sched_txfact_addr, 0); 6389 6390 /* Stop all DMA channels. */ 6391 if (iwn_nic_lock(sc) == 0) { 6392 for (chnl = 0; chnl < sc->ndmachnls; chnl++) { 6393 IWN_WRITE(sc, IWN_FH_TX_CONFIG(chnl), 0); 6394 for (ntries = 0; ntries < 200; ntries++) { 6395 if (IWN_READ(sc, IWN_FH_TX_STATUS) & 6396 IWN_FH_TX_STATUS_IDLE(chnl)) 6397 break; 6398 DELAY(10); 6399 } 6400 } 6401 iwn_nic_unlock(sc); 6402 } 6403 6404 /* Stop RX ring. */ 6405 iwn_reset_rx_ring(sc, &sc->rxq); 6406 6407 /* Reset all TX rings. */ 6408 for (qid = 0; qid < sc->ntxqs; qid++) 6409 iwn_reset_tx_ring(sc, &sc->txq[qid]); 6410 6411 if (iwn_nic_lock(sc) == 0) { 6412 iwn_prph_write(sc, IWN_APMG_CLK_DIS, 6413 IWN_APMG_CLK_CTRL_DMA_CLK_RQT); 6414 iwn_nic_unlock(sc); 6415 } 6416 DELAY(5); 6417 /* Power OFF adapter. */ 6418 iwn_apm_stop(sc); 6419 } 6420 6421 static int 6422 iwn_init(struct ifnet *ifp) 6423 { 6424 struct iwn_softc *sc = ifp->if_softc; 6425 struct ieee80211com *ic = &sc->sc_ic; 6426 int error; 6427 6428 mutex_enter(&sc->sc_mtx); 6429 if (sc->sc_flags & IWN_FLAG_HW_INITED) 6430 goto out; 6431 if ((error = iwn_hw_prepare(sc)) != 0) { 6432 aprint_error_dev(sc->sc_dev, 6433 "hardware not ready\n"); 6434 goto fail; 6435 } 6436 6437 /* Check that the radio is not disabled by hardware switch. */ 6438 if (!(IWN_READ(sc, IWN_GP_CNTRL) & IWN_GP_CNTRL_RFKILL)) { 6439 aprint_error_dev(sc->sc_dev, 6440 "radio is disabled by hardware switch\n"); 6441 error = EPERM; /* :-) */ 6442 goto fail; 6443 } 6444 6445 /* Read firmware images from the filesystem. */ 6446 if ((error = iwn_read_firmware(sc)) != 0) { 6447 aprint_error_dev(sc->sc_dev, 6448 "could not read firmware\n"); 6449 goto fail; 6450 } 6451 6452 /* Initialize interrupt mask to default value. */ 6453 sc->int_mask = IWN_INT_MASK_DEF; 6454 sc->sc_flags &= ~IWN_FLAG_USE_ICT; 6455 6456 /* Initialize hardware and upload firmware. */ 6457 KASSERT(sc->fw.data != NULL && sc->fw.size > 0); 6458 error = iwn_hw_init(sc); 6459 firmware_free(sc->fw.data, sc->fw.size); 6460 sc->fw.data = NULL; 6461 sc->fw.size = 0; 6462 if (error != 0) { 6463 aprint_error_dev(sc->sc_dev, 6464 "could not initialize hardware\n"); 6465 goto fail; 6466 } 6467 6468 /* Configure adapter now that it is ready. */ 6469 if ((error = iwn_config(sc)) != 0) { 6470 aprint_error_dev(sc->sc_dev, 6471 "could not configure device\n"); 6472 goto fail; 6473 } 6474 6475 sc->sc_beacon_wait = 0; 6476 6477 ifp->if_flags &= ~IFF_OACTIVE; 6478 ifp->if_flags |= IFF_RUNNING; 6479 6480 if (ic->ic_opmode != IEEE80211_M_MONITOR) 6481 ieee80211_begin_scan(ic, 0); 6482 else 6483 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 6484 6485 sc->sc_flags |= IWN_FLAG_HW_INITED; 6486 out: 6487 mutex_exit(&sc->sc_mtx); 6488 return 0; 6489 6490 fail: mutex_exit(&sc->sc_mtx); 6491 iwn_stop(ifp, 1); 6492 return error; 6493 } 6494 6495 static void 6496 iwn_stop(struct ifnet *ifp, int disable) 6497 { 6498 struct iwn_softc *sc = ifp->if_softc; 6499 struct ieee80211com *ic = &sc->sc_ic; 6500 6501 if (!disable) 6502 mutex_enter(&sc->sc_mtx); 6503 sc->sc_flags &= ~IWN_FLAG_HW_INITED; 6504 ifp->if_timer = sc->sc_tx_timer = 0; 6505 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 6506 6507 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 6508 6509 /* Power OFF hardware. */ 6510 iwn_hw_stop(sc); 6511 6512 if (!disable) 6513 mutex_exit(&sc->sc_mtx); 6514 } 6515 6516 /* 6517 * XXX MCLGETI alternative 6518 * 6519 * With IWN_USE_RBUF defined it uses the rbuf cache for receive buffers 6520 * as long as there are available free buffers then it uses MEXTMALLOC., 6521 * Without IWN_USE_RBUF defined it uses MEXTMALLOC exclusively. 6522 * The MCLGET4K code is used for testing an alternative mbuf cache. 6523 */ 6524 6525 static struct mbuf * 6526 MCLGETIalt(struct iwn_softc *sc, int how, 6527 struct ifnet *ifp __unused, u_int size) 6528 { 6529 struct mbuf *m; 6530 #ifdef IWN_USE_RBUF 6531 struct iwn_rbuf *rbuf; 6532 #endif 6533 6534 MGETHDR(m, how, MT_DATA); 6535 if (m == NULL) 6536 return NULL; 6537 6538 #ifdef IWN_USE_RBUF 6539 if (sc->rxq.nb_free_entries > 0 && 6540 (rbuf = iwn_alloc_rbuf(sc)) != NULL) { 6541 /* Attach buffer to mbuf header. */ 6542 MEXTADD(m, rbuf->vaddr, size, 0, iwn_free_rbuf, rbuf); 6543 m->m_flags |= M_EXT_RW; 6544 } 6545 else { 6546 MEXTMALLOC(m, size, how); 6547 if ((m->m_flags & M_EXT) == 0) { 6548 m_freem(m); 6549 return NULL; 6550 } 6551 } 6552 6553 #else 6554 #ifdef MCLGET4K 6555 if (size == 4096) 6556 MCLGET4K(m, how); 6557 else 6558 panic("size must be 4k"); 6559 #else 6560 MEXTMALLOC(m, size, how); 6561 #endif 6562 if ((m->m_flags & M_EXT) == 0) { 6563 m_freem(m); 6564 return NULL; 6565 } 6566 #endif 6567 6568 return m; 6569 } 6570 6571 #ifdef IWN_USE_RBUF 6572 static struct iwn_rbuf * 6573 iwn_alloc_rbuf(struct iwn_softc *sc) 6574 { 6575 struct iwn_rbuf *rbuf; 6576 mutex_enter(&sc->rxq.freelist_mtx); 6577 6578 rbuf = SLIST_FIRST(&sc->rxq.freelist); 6579 if (rbuf != NULL) { 6580 SLIST_REMOVE_HEAD(&sc->rxq.freelist, next); 6581 sc->rxq.nb_free_entries --; 6582 } 6583 mutex_exit(&sc->rxq.freelist_mtx); 6584 return rbuf; 6585 } 6586 6587 /* 6588 * This is called automatically by the network stack when the mbuf to which 6589 * our RX buffer is attached is freed. 6590 */ 6591 static void 6592 iwn_free_rbuf(struct mbuf* m, void *buf, size_t size, void *arg) 6593 { 6594 struct iwn_rbuf *rbuf = arg; 6595 struct iwn_softc *sc = rbuf->sc; 6596 6597 /* Put the RX buffer back in the free list. */ 6598 mutex_enter(&sc->rxq.freelist_mtx); 6599 SLIST_INSERT_HEAD(&sc->rxq.freelist, rbuf, next); 6600 mutex_exit(&sc->rxq.freelist_mtx); 6601 6602 sc->rxq.nb_free_entries ++; 6603 if (__predict_true(m != NULL)) 6604 pool_cache_put(mb_cache, m); 6605 } 6606 6607 static int 6608 iwn_alloc_rpool(struct iwn_softc *sc) 6609 { 6610 struct iwn_rx_ring *ring = &sc->rxq; 6611 struct iwn_rbuf *rbuf; 6612 int i, error; 6613 6614 mutex_init(&ring->freelist_mtx, MUTEX_DEFAULT, IPL_NET); 6615 6616 /* Allocate a big chunk of DMA'able memory... */ 6617 error = iwn_dma_contig_alloc(sc->sc_dmat, &ring->buf_dma, NULL, 6618 IWN_RBUF_COUNT * IWN_RBUF_SIZE, PAGE_SIZE); 6619 if (error != 0) { 6620 aprint_error_dev(sc->sc_dev, 6621 "could not allocate RX buffers DMA memory\n"); 6622 return error; 6623 } 6624 /* ...and split it into chunks of IWN_RBUF_SIZE bytes. */ 6625 SLIST_INIT(&ring->freelist); 6626 for (i = 0; i < IWN_RBUF_COUNT; i++) { 6627 rbuf = &ring->rbuf[i]; 6628 6629 rbuf->sc = sc; /* Backpointer for callbacks. */ 6630 rbuf->vaddr = (void *)((vaddr_t)ring->buf_dma.vaddr + i * IWN_RBUF_SIZE); 6631 rbuf->paddr = ring->buf_dma.paddr + i * IWN_RBUF_SIZE; 6632 6633 SLIST_INSERT_HEAD(&ring->freelist, rbuf, next); 6634 } 6635 ring->nb_free_entries = IWN_RBUF_COUNT; 6636 return 0; 6637 } 6638 6639 static void 6640 iwn_free_rpool(struct iwn_softc *sc) 6641 { 6642 iwn_dma_contig_free(&sc->rxq.buf_dma); 6643 } 6644 #endif 6645 6646 /* 6647 * XXX: Hack to set the current channel to the value advertised in beacons or 6648 * probe responses. Only used during AP detection. 6649 * XXX: Duplicated from if_iwi.c 6650 */ 6651 static void 6652 iwn_fix_channel(struct ieee80211com *ic, struct mbuf *m, 6653 struct iwn_rx_stat *stat) 6654 { 6655 struct iwn_softc *sc = ic->ic_ifp->if_softc; 6656 struct ieee80211_frame *wh; 6657 uint8_t subtype; 6658 uint8_t *frm, *efrm; 6659 6660 wh = mtod(m, struct ieee80211_frame *); 6661 6662 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 6663 return; 6664 6665 subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 6666 6667 if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 6668 subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 6669 return; 6670 6671 if (sc->sc_flags & IWN_FLAG_SCANNING_5GHZ) { 6672 int chan = le16toh(stat->chan); 6673 if (chan < __arraycount(ic->ic_channels)) 6674 ic->ic_curchan = &ic->ic_channels[chan]; 6675 return; 6676 } 6677 6678 frm = (uint8_t *)(wh + 1); 6679 efrm = mtod(m, uint8_t *) + m->m_len; 6680 6681 frm += 12; /* skip tstamp, bintval and capinfo fields */ 6682 while (frm + 2 < efrm) { 6683 if (*frm == IEEE80211_ELEMID_DSPARMS) { 6684 #if IEEE80211_CHAN_MAX < 255 6685 if (frm[2] <= IEEE80211_CHAN_MAX) 6686 #endif 6687 ic->ic_curchan = &ic->ic_channels[frm[2]]; 6688 } 6689 6690 frm += frm[1] + 2; 6691 } 6692 } 6693 6694 #ifdef notyetMODULE 6695 6696 MODULE(MODULE_CLASS_DRIVER, if_iwn, "pci"); 6697 6698 #ifdef _MODULE 6699 #include "ioconf.c" 6700 #endif 6701 6702 static int 6703 if_iwn_modcmd(modcmd_t cmd, void *data) 6704 { 6705 int error = 0; 6706 6707 switch (cmd) { 6708 case MODULE_CMD_INIT: 6709 #ifdef _MODULE 6710 error = config_init_component(cfdriver_ioconf_if_iwn, 6711 cfattach_ioconf_if_iwn, cfdata_ioconf_if_iwn); 6712 #endif 6713 return error; 6714 case MODULE_CMD_FINI: 6715 #ifdef _MODULE 6716 error = config_fini_component(cfdriver_ioconf_if_iwn, 6717 cfattach_ioconf_if_iwn, cfdata_ioconf_if_iwn); 6718 #endif 6719 return error; 6720 case MODULE_CMD_AUTOUNLOAD: 6721 #ifdef _MODULE 6722 /* XXX This is not optional! */ 6723 #endif 6724 return error; 6725 default: 6726 return ENOTTY; 6727 } 6728 } 6729 #endif 6730