if_wpi.c revision 288999
1248590Smm/*- 2248590Smm * Copyright (c) 2006,2007 3248590Smm * Damien Bergamini <damien.bergamini@free.fr> 4248590Smm * Benjamin Close <Benjamin.Close@clearchain.com> 5248590Smm * 6248590Smm * Permission to use, copy, modify, and distribute this software for any 7248590Smm * purpose with or without fee is hereby granted, provided that the above 8248590Smm * copyright notice and this permission notice appear in all copies. 9248590Smm * 10248590Smm * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11248590Smm * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12248590Smm * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13248590Smm * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14248590Smm * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15248590Smm * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16248590Smm * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17248590Smm */ 18248590Smm 19248590Smm#include <sys/cdefs.h> 20248590Smm__FBSDID("$FreeBSD: head/sys/dev/wpi/if_wpi.c 288999 2015-10-08 00:52:41Z adrian $"); 21248590Smm 22248590Smm/* 23248590Smm * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters. 24248590Smm * 25248590Smm * The 3945ABG network adapter doesn't use traditional hardware as 26248590Smm * many other adaptors do. Instead at run time the eeprom is set into a known 27248590Smm * state and told to load boot firmware. The boot firmware loads an init and a 28248590Smm * main binary firmware image into SRAM on the card via DMA. 29248590Smm * Once the firmware is loaded, the driver/hw then 30248590Smm * communicate by way of circular dma rings via the SRAM to the firmware. 31248590Smm * 32248590Smm * There is 6 memory rings. 1 command ring, 1 rx data ring & 4 tx data rings. 33248590Smm * The 4 tx data rings allow for prioritization QoS. 34248590Smm * 35248590Smm * The rx data ring consists of 32 dma buffers. Two registers are used to 36248590Smm * indicate where in the ring the driver and the firmware are up to. The 37248590Smm * driver sets the initial read index (reg1) and the initial write index (reg2), 38248590Smm * the firmware updates the read index (reg1) on rx of a packet and fires an 39248590Smm * interrupt. The driver then processes the buffers starting at reg1 indicating 40248590Smm * to the firmware which buffers have been accessed by updating reg2. At the 41248590Smm * same time allocating new memory for the processed buffer. 42299529Smm * 43248590Smm * A similar thing happens with the tx rings. The difference is the firmware 44248590Smm * stop processing buffers once the queue is full and until confirmation 45248590Smm * of a successful transmition (tx_done) has occurred. 46313570Smm * 47248590Smm * The command ring operates in the same manner as the tx queues. 48248590Smm * 49248590Smm * All communication direct to the card (ie eeprom) is classed as Stage1 50248590Smm * communication 51248590Smm * 52248590Smm * All communication via the firmware to the card is classed as State2. 53248590Smm * The firmware consists of 2 parts. A bootstrap firmware and a runtime 54248590Smm * firmware. The bootstrap firmware and runtime firmware are loaded 55248590Smm * from host memory via dma to the card then told to execute. From this point 56248590Smm * on the majority of communications between the driver and the card goes 57248590Smm * via the firmware. 58248590Smm */ 59248590Smm 60248590Smm#include "opt_wlan.h" 61299529Smm#include "opt_wpi.h" 62248590Smm 63248590Smm#include <sys/param.h> 64299529Smm#include <sys/sysctl.h> 65248590Smm#include <sys/sockio.h> 66248590Smm#include <sys/mbuf.h> 67248590Smm#include <sys/kernel.h> 68248590Smm#include <sys/socket.h> 69248590Smm#include <sys/systm.h> 70248590Smm#include <sys/malloc.h> 71248590Smm#include <sys/queue.h> 72248590Smm#include <sys/taskqueue.h> 73248590Smm#include <sys/module.h> 74248590Smm#include <sys/bus.h> 75248590Smm#include <sys/endian.h> 76248590Smm#include <sys/linker.h> 77248590Smm#include <sys/firmware.h> 78248590Smm 79248590Smm#include <machine/bus.h> 80248590Smm#include <machine/resource.h> 81299529Smm#include <sys/rman.h> 82248590Smm 83248590Smm#include <dev/pci/pcireg.h> 84248590Smm#include <dev/pci/pcivar.h> 85248590Smm 86248590Smm#include <net/bpf.h> 87248590Smm#include <net/if.h> 88248590Smm#include <net/if_var.h> 89248590Smm#include <net/if_arp.h> 90248590Smm#include <net/ethernet.h> 91248590Smm#include <net/if_dl.h> 92248590Smm#include <net/if_media.h> 93248590Smm#include <net/if_types.h> 94248590Smm 95313570Smm#include <netinet/in.h> 96248590Smm#include <netinet/in_systm.h> 97248590Smm#include <netinet/in_var.h> 98248590Smm#include <netinet/if_ether.h> 99248590Smm#include <netinet/ip.h> 100248590Smm 101299529Smm#include <net80211/ieee80211_var.h> 102248590Smm#include <net80211/ieee80211_radiotap.h> 103248590Smm#include <net80211/ieee80211_regdomain.h> 104248590Smm#include <net80211/ieee80211_ratectl.h> 105248590Smm 106248590Smm#include <dev/wpi/if_wpireg.h> 107248590Smm#include <dev/wpi/if_wpivar.h> 108248590Smm#include <dev/wpi/if_wpi_debug.h> 109248590Smm 110248590Smmstruct wpi_ident { 111248590Smm uint16_t vendor; 112248590Smm uint16_t device; 113248590Smm uint16_t subdevice; 114248590Smm const char *name; 115248590Smm}; 116248590Smm 117248590Smmstatic const struct wpi_ident wpi_ident_table[] = { 118248590Smm /* The below entries support ABG regardless of the subid */ 119248590Smm { 0x8086, 0x4222, 0x0, "Intel(R) PRO/Wireless 3945ABG" }, 120248590Smm { 0x8086, 0x4227, 0x0, "Intel(R) PRO/Wireless 3945ABG" }, 121248590Smm /* The below entries only support BG */ 122248590Smm { 0x8086, 0x4222, 0x1005, "Intel(R) PRO/Wireless 3945BG" }, 123248590Smm { 0x8086, 0x4222, 0x1034, "Intel(R) PRO/Wireless 3945BG" }, 124248590Smm { 0x8086, 0x4227, 0x1014, "Intel(R) PRO/Wireless 3945BG" }, 125248590Smm { 0x8086, 0x4222, 0x1044, "Intel(R) PRO/Wireless 3945BG" }, 126248590Smm { 0, 0, 0, NULL } 127248590Smm}; 128248590Smm 129248590Smmstatic int wpi_probe(device_t); 130248590Smmstatic int wpi_attach(device_t); 131248590Smmstatic void wpi_radiotap_attach(struct wpi_softc *); 132248590Smmstatic void wpi_sysctlattach(struct wpi_softc *); 133248590Smmstatic void wpi_init_beacon(struct wpi_vap *); 134248590Smmstatic struct ieee80211vap *wpi_vap_create(struct ieee80211com *, 135248590Smm const char [IFNAMSIZ], int, enum ieee80211_opmode, int, 136248590Smm const uint8_t [IEEE80211_ADDR_LEN], 137299529Smm const uint8_t [IEEE80211_ADDR_LEN]); 138248590Smmstatic void wpi_vap_delete(struct ieee80211vap *); 139248590Smmstatic int wpi_detach(device_t); 140248590Smmstatic int wpi_shutdown(device_t); 141248590Smmstatic int wpi_suspend(device_t); 142248590Smmstatic int wpi_resume(device_t); 143248590Smmstatic int wpi_nic_lock(struct wpi_softc *); 144248590Smmstatic int wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int); 145248590Smmstatic void wpi_dma_map_addr(void *, bus_dma_segment_t *, int, int); 146248590Smmstatic int wpi_dma_contig_alloc(struct wpi_softc *, struct wpi_dma_info *, 147248590Smm void **, bus_size_t, bus_size_t); 148248590Smmstatic void wpi_dma_contig_free(struct wpi_dma_info *); 149248590Smmstatic int wpi_alloc_shared(struct wpi_softc *); 150248590Smmstatic void wpi_free_shared(struct wpi_softc *); 151248590Smmstatic int wpi_alloc_fwmem(struct wpi_softc *); 152248590Smmstatic void wpi_free_fwmem(struct wpi_softc *); 153248590Smmstatic int wpi_alloc_rx_ring(struct wpi_softc *); 154248590Smmstatic void wpi_update_rx_ring(struct wpi_softc *); 155248590Smmstatic void wpi_update_rx_ring_ps(struct wpi_softc *); 156248590Smmstatic void wpi_reset_rx_ring(struct wpi_softc *); 157248590Smmstatic void wpi_free_rx_ring(struct wpi_softc *); 158248590Smmstatic int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *, 159248590Smm int); 160248590Smmstatic void wpi_update_tx_ring(struct wpi_softc *, struct wpi_tx_ring *); 161248590Smmstatic void wpi_update_tx_ring_ps(struct wpi_softc *, 162248590Smm struct wpi_tx_ring *); 163248590Smmstatic void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *); 164248590Smmstatic void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *); 165299529Smmstatic int wpi_read_eeprom(struct wpi_softc *, 166248590Smm uint8_t macaddr[IEEE80211_ADDR_LEN]); 167248590Smmstatic uint32_t wpi_eeprom_channel_flags(struct wpi_eeprom_chan *); 168248590Smmstatic void wpi_read_eeprom_band(struct wpi_softc *, int); 169248590Smmstatic int wpi_read_eeprom_channels(struct wpi_softc *, int); 170248590Smmstatic struct wpi_eeprom_chan *wpi_find_eeprom_channel(struct wpi_softc *, 171248590Smm struct ieee80211_channel *); 172248590Smmstatic int wpi_setregdomain(struct ieee80211com *, 173248590Smm struct ieee80211_regdomain *, int, 174248590Smm struct ieee80211_channel[]); 175248590Smmstatic int wpi_read_eeprom_group(struct wpi_softc *, int); 176248590Smmstatic int wpi_add_node_entry_adhoc(struct wpi_softc *); 177248590Smmstatic struct ieee80211_node *wpi_node_alloc(struct ieee80211vap *, 178248590Smm const uint8_t mac[IEEE80211_ADDR_LEN]); 179248590Smmstatic void wpi_node_free(struct ieee80211_node *); 180248590Smmstatic void wpi_recv_mgmt(struct ieee80211_node *, struct mbuf *, int, 181248590Smm const struct ieee80211_rx_stats *, 182248590Smm int, int); 183248590Smmstatic void wpi_restore_node(void *, struct ieee80211_node *); 184248590Smmstatic void wpi_restore_node_table(struct wpi_softc *, struct wpi_vap *); 185248590Smmstatic int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int); 186248590Smmstatic void wpi_calib_timeout(void *); 187248590Smmstatic void wpi_rx_done(struct wpi_softc *, struct wpi_rx_desc *, 188248590Smm struct wpi_rx_data *); 189248590Smmstatic void wpi_rx_statistics(struct wpi_softc *, struct wpi_rx_desc *, 190299529Smm struct wpi_rx_data *); 191248590Smmstatic void wpi_tx_done(struct wpi_softc *, struct wpi_rx_desc *); 192248590Smmstatic void wpi_cmd_done(struct wpi_softc *, struct wpi_rx_desc *); 193248590Smmstatic void wpi_notif_intr(struct wpi_softc *); 194248590Smmstatic void wpi_wakeup_intr(struct wpi_softc *); 195248590Smm#ifdef WPI_DEBUG 196248590Smmstatic void wpi_debug_registers(struct wpi_softc *); 197248590Smm#endif 198248590Smmstatic void wpi_fatal_intr(struct wpi_softc *); 199248590Smmstatic void wpi_intr(void *); 200248590Smmstatic int wpi_cmd2(struct wpi_softc *, struct wpi_buf *); 201248590Smmstatic int wpi_tx_data(struct wpi_softc *, struct mbuf *, 202248590Smm struct ieee80211_node *); 203248590Smmstatic int wpi_tx_data_raw(struct wpi_softc *, struct mbuf *, 204248590Smm struct ieee80211_node *, 205248590Smm const struct ieee80211_bpf_params *); 206248590Smmstatic int wpi_raw_xmit(struct ieee80211_node *, struct mbuf *, 207248590Smm const struct ieee80211_bpf_params *); 208248590Smmstatic int wpi_transmit(struct ieee80211com *, struct mbuf *); 209248590Smmstatic void wpi_watchdog_rfkill(void *); 210248590Smmstatic void wpi_scan_timeout(void *); 211248590Smmstatic void wpi_tx_timeout(void *); 212248590Smmstatic void wpi_parent(struct ieee80211com *); 213248590Smmstatic int wpi_cmd(struct wpi_softc *, int, const void *, size_t, int); 214248590Smmstatic int wpi_mrr_setup(struct wpi_softc *); 215313570Smmstatic int wpi_add_node(struct wpi_softc *, struct ieee80211_node *); 216248590Smmstatic int wpi_add_broadcast_node(struct wpi_softc *, int); 217248590Smmstatic int wpi_add_ibss_node(struct wpi_softc *, struct ieee80211_node *); 218248590Smmstatic void wpi_del_node(struct wpi_softc *, struct ieee80211_node *); 219248590Smmstatic int wpi_updateedca(struct ieee80211com *); 220299529Smmstatic void wpi_set_promisc(struct wpi_softc *); 221248590Smmstatic void wpi_update_promisc(struct ieee80211com *); 222248590Smmstatic void wpi_update_mcast(struct ieee80211com *); 223248590Smmstatic void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t); 224248590Smmstatic int wpi_set_timing(struct wpi_softc *, struct ieee80211_node *); 225248590Smmstatic void wpi_power_calibration(struct wpi_softc *); 226248590Smmstatic int wpi_set_txpower(struct wpi_softc *, int); 227248590Smmstatic int wpi_get_power_index(struct wpi_softc *, 228248590Smm struct wpi_power_group *, uint8_t, int, int); 229248590Smmstatic int wpi_set_pslevel(struct wpi_softc *, uint8_t, int, int); 230248590Smmstatic int wpi_send_btcoex(struct wpi_softc *); 231248590Smmstatic int wpi_send_rxon(struct wpi_softc *, int, int); 232248590Smmstatic int wpi_config(struct wpi_softc *); 233248590Smmstatic uint16_t wpi_get_active_dwell_time(struct wpi_softc *, 234248590Smm struct ieee80211_channel *, uint8_t); 235248590Smmstatic uint16_t wpi_limit_dwell(struct wpi_softc *, uint16_t); 236248590Smmstatic uint16_t wpi_get_passive_dwell_time(struct wpi_softc *, 237248590Smm struct ieee80211_channel *); 238248590Smmstatic uint32_t wpi_get_scan_pause_time(uint32_t, uint16_t); 239248590Smmstatic int wpi_scan(struct wpi_softc *, struct ieee80211_channel *); 240248590Smmstatic int wpi_auth(struct wpi_softc *, struct ieee80211vap *); 241248590Smmstatic int wpi_config_beacon(struct wpi_vap *); 242248590Smmstatic int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *); 243248590Smmstatic void wpi_update_beacon(struct ieee80211vap *, int); 244248590Smmstatic void wpi_newassoc(struct ieee80211_node *, int); 245248590Smmstatic int wpi_run(struct wpi_softc *, struct ieee80211vap *); 246248590Smmstatic int wpi_load_key(struct ieee80211_node *, 247248590Smm const struct ieee80211_key *); 248248590Smmstatic void wpi_load_key_cb(void *, struct ieee80211_node *); 249248590Smmstatic int wpi_set_global_keys(struct ieee80211_node *); 250248590Smmstatic int wpi_del_key(struct ieee80211_node *, 251248590Smm const struct ieee80211_key *); 252248590Smmstatic void wpi_del_key_cb(void *, struct ieee80211_node *); 253248590Smmstatic int wpi_process_key(struct ieee80211vap *, 254248590Smm const struct ieee80211_key *, int); 255248590Smmstatic int wpi_key_set(struct ieee80211vap *, 256248590Smm const struct ieee80211_key *); 257248590Smmstatic int wpi_key_delete(struct ieee80211vap *, 258248590Smm const struct ieee80211_key *); 259248590Smmstatic int wpi_post_alive(struct wpi_softc *); 260248590Smmstatic int wpi_load_bootcode(struct wpi_softc *, const uint8_t *, int); 261248590Smmstatic int wpi_load_firmware(struct wpi_softc *); 262248590Smmstatic int wpi_read_firmware(struct wpi_softc *); 263248590Smmstatic void wpi_unload_firmware(struct wpi_softc *); 264248590Smmstatic int wpi_clock_wait(struct wpi_softc *); 265248590Smmstatic int wpi_apm_init(struct wpi_softc *); 266248590Smmstatic void wpi_apm_stop_master(struct wpi_softc *); 267248590Smmstatic void wpi_apm_stop(struct wpi_softc *); 268248590Smmstatic void wpi_nic_config(struct wpi_softc *); 269static int wpi_hw_init(struct wpi_softc *); 270static void wpi_hw_stop(struct wpi_softc *); 271static void wpi_radio_on(void *, int); 272static void wpi_radio_off(void *, int); 273static int wpi_init(struct wpi_softc *); 274static void wpi_stop_locked(struct wpi_softc *); 275static void wpi_stop(struct wpi_softc *); 276static void wpi_scan_start(struct ieee80211com *); 277static void wpi_scan_end(struct ieee80211com *); 278static void wpi_set_channel(struct ieee80211com *); 279static void wpi_scan_curchan(struct ieee80211_scan_state *, unsigned long); 280static void wpi_scan_mindwell(struct ieee80211_scan_state *); 281static void wpi_hw_reset(void *, int); 282 283static device_method_t wpi_methods[] = { 284 /* Device interface */ 285 DEVMETHOD(device_probe, wpi_probe), 286 DEVMETHOD(device_attach, wpi_attach), 287 DEVMETHOD(device_detach, wpi_detach), 288 DEVMETHOD(device_shutdown, wpi_shutdown), 289 DEVMETHOD(device_suspend, wpi_suspend), 290 DEVMETHOD(device_resume, wpi_resume), 291 292 DEVMETHOD_END 293}; 294 295static driver_t wpi_driver = { 296 "wpi", 297 wpi_methods, 298 sizeof (struct wpi_softc) 299}; 300static devclass_t wpi_devclass; 301 302DRIVER_MODULE(wpi, pci, wpi_driver, wpi_devclass, NULL, NULL); 303 304MODULE_VERSION(wpi, 1); 305 306MODULE_DEPEND(wpi, pci, 1, 1, 1); 307MODULE_DEPEND(wpi, wlan, 1, 1, 1); 308MODULE_DEPEND(wpi, firmware, 1, 1, 1); 309 310static int 311wpi_probe(device_t dev) 312{ 313 const struct wpi_ident *ident; 314 315 for (ident = wpi_ident_table; ident->name != NULL; ident++) { 316 if (pci_get_vendor(dev) == ident->vendor && 317 pci_get_device(dev) == ident->device) { 318 device_set_desc(dev, ident->name); 319 return (BUS_PROBE_DEFAULT); 320 } 321 } 322 return ENXIO; 323} 324 325static int 326wpi_attach(device_t dev) 327{ 328 struct wpi_softc *sc = (struct wpi_softc *)device_get_softc(dev); 329 struct ieee80211com *ic; 330 int i, error, rid; 331#ifdef WPI_DEBUG 332 int supportsa = 1; 333 const struct wpi_ident *ident; 334#endif 335 336 sc->sc_dev = dev; 337 338#ifdef WPI_DEBUG 339 error = resource_int_value(device_get_name(sc->sc_dev), 340 device_get_unit(sc->sc_dev), "debug", &(sc->sc_debug)); 341 if (error != 0) 342 sc->sc_debug = 0; 343#else 344 sc->sc_debug = 0; 345#endif 346 347 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 348 349 /* 350 * Get the offset of the PCI Express Capability Structure in PCI 351 * Configuration Space. 352 */ 353 error = pci_find_cap(dev, PCIY_EXPRESS, &sc->sc_cap_off); 354 if (error != 0) { 355 device_printf(dev, "PCIe capability structure not found!\n"); 356 return error; 357 } 358 359 /* 360 * Some card's only support 802.11b/g not a, check to see if 361 * this is one such card. A 0x0 in the subdevice table indicates 362 * the entire subdevice range is to be ignored. 363 */ 364#ifdef WPI_DEBUG 365 for (ident = wpi_ident_table; ident->name != NULL; ident++) { 366 if (ident->subdevice && 367 pci_get_subdevice(dev) == ident->subdevice) { 368 supportsa = 0; 369 break; 370 } 371 } 372#endif 373 374 /* Clear device-specific "PCI retry timeout" register (41h). */ 375 pci_write_config(dev, 0x41, 0, 1); 376 377 /* Enable bus-mastering. */ 378 pci_enable_busmaster(dev); 379 380 rid = PCIR_BAR(0); 381 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 382 RF_ACTIVE); 383 if (sc->mem == NULL) { 384 device_printf(dev, "can't map mem space\n"); 385 return ENOMEM; 386 } 387 sc->sc_st = rman_get_bustag(sc->mem); 388 sc->sc_sh = rman_get_bushandle(sc->mem); 389 390 i = 1; 391 rid = 0; 392 if (pci_alloc_msi(dev, &i) == 0) 393 rid = 1; 394 /* Install interrupt handler. */ 395 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE | 396 (rid != 0 ? 0 : RF_SHAREABLE)); 397 if (sc->irq == NULL) { 398 device_printf(dev, "can't map interrupt\n"); 399 error = ENOMEM; 400 goto fail; 401 } 402 403 WPI_LOCK_INIT(sc); 404 WPI_TX_LOCK_INIT(sc); 405 WPI_RXON_LOCK_INIT(sc); 406 WPI_NT_LOCK_INIT(sc); 407 WPI_TXQ_LOCK_INIT(sc); 408 WPI_TXQ_STATE_LOCK_INIT(sc); 409 410 /* Allocate DMA memory for firmware transfers. */ 411 if ((error = wpi_alloc_fwmem(sc)) != 0) { 412 device_printf(dev, 413 "could not allocate memory for firmware, error %d\n", 414 error); 415 goto fail; 416 } 417 418 /* Allocate shared page. */ 419 if ((error = wpi_alloc_shared(sc)) != 0) { 420 device_printf(dev, "could not allocate shared page\n"); 421 goto fail; 422 } 423 424 /* Allocate TX rings - 4 for QoS purposes, 1 for commands. */ 425 for (i = 0; i < WPI_NTXQUEUES; i++) { 426 if ((error = wpi_alloc_tx_ring(sc, &sc->txq[i], i)) != 0) { 427 device_printf(dev, 428 "could not allocate TX ring %d, error %d\n", i, 429 error); 430 goto fail; 431 } 432 } 433 434 /* Allocate RX ring. */ 435 if ((error = wpi_alloc_rx_ring(sc)) != 0) { 436 device_printf(dev, "could not allocate RX ring, error %d\n", 437 error); 438 goto fail; 439 } 440 441 /* Clear pending interrupts. */ 442 WPI_WRITE(sc, WPI_INT, 0xffffffff); 443 444 ic = &sc->sc_ic; 445 ic->ic_softc = sc; 446 ic->ic_name = device_get_nameunit(dev); 447 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 448 ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 449 450 /* Set device capabilities. */ 451 ic->ic_caps = 452 IEEE80211_C_STA /* station mode supported */ 453 | IEEE80211_C_IBSS /* IBSS mode supported */ 454 | IEEE80211_C_HOSTAP /* Host access point mode */ 455 | IEEE80211_C_MONITOR /* monitor mode supported */ 456 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 457 | IEEE80211_C_BGSCAN /* capable of bg scanning */ 458 | IEEE80211_C_TXPMGT /* tx power management */ 459 | IEEE80211_C_SHSLOT /* short slot time supported */ 460 | IEEE80211_C_WPA /* 802.11i */ 461 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 462 | IEEE80211_C_WME /* 802.11e */ 463 | IEEE80211_C_PMGT /* Station-side power mgmt */ 464 ; 465 466 ic->ic_cryptocaps = 467 IEEE80211_CRYPTO_AES_CCM; 468 469 /* 470 * Read in the eeprom and also setup the channels for 471 * net80211. We don't set the rates as net80211 does this for us 472 */ 473 if ((error = wpi_read_eeprom(sc, ic->ic_macaddr)) != 0) { 474 device_printf(dev, "could not read EEPROM, error %d\n", 475 error); 476 goto fail; 477 } 478 479#ifdef WPI_DEBUG 480 if (bootverbose) { 481 device_printf(sc->sc_dev, "Regulatory Domain: %.4s\n", 482 sc->domain); 483 device_printf(sc->sc_dev, "Hardware Type: %c\n", 484 sc->type > 1 ? 'B': '?'); 485 device_printf(sc->sc_dev, "Hardware Revision: %c\n", 486 ((sc->rev & 0xf0) == 0xd0) ? 'D': '?'); 487 device_printf(sc->sc_dev, "SKU %s support 802.11a\n", 488 supportsa ? "does" : "does not"); 489 490 /* XXX hw_config uses the PCIDEV for the Hardware rev. Must 491 check what sc->rev really represents - benjsc 20070615 */ 492 } 493#endif 494 495 ieee80211_ifattach(ic); 496 ic->ic_vap_create = wpi_vap_create; 497 ic->ic_vap_delete = wpi_vap_delete; 498 ic->ic_parent = wpi_parent; 499 ic->ic_raw_xmit = wpi_raw_xmit; 500 ic->ic_transmit = wpi_transmit; 501 ic->ic_node_alloc = wpi_node_alloc; 502 sc->sc_node_free = ic->ic_node_free; 503 ic->ic_node_free = wpi_node_free; 504 ic->ic_wme.wme_update = wpi_updateedca; 505 ic->ic_update_promisc = wpi_update_promisc; 506 ic->ic_update_mcast = wpi_update_mcast; 507 ic->ic_newassoc = wpi_newassoc; 508 ic->ic_scan_start = wpi_scan_start; 509 ic->ic_scan_end = wpi_scan_end; 510 ic->ic_set_channel = wpi_set_channel; 511 ic->ic_scan_curchan = wpi_scan_curchan; 512 ic->ic_scan_mindwell = wpi_scan_mindwell; 513 ic->ic_setregdomain = wpi_setregdomain; 514 515 sc->sc_update_rx_ring = wpi_update_rx_ring; 516 sc->sc_update_tx_ring = wpi_update_tx_ring; 517 518 wpi_radiotap_attach(sc); 519 520 callout_init_mtx(&sc->calib_to, &sc->rxon_mtx, 0); 521 callout_init_mtx(&sc->scan_timeout, &sc->rxon_mtx, 0); 522 callout_init_mtx(&sc->tx_timeout, &sc->txq_state_mtx, 0); 523 callout_init_mtx(&sc->watchdog_rfkill, &sc->sc_mtx, 0); 524 TASK_INIT(&sc->sc_reinittask, 0, wpi_hw_reset, sc); 525 TASK_INIT(&sc->sc_radiooff_task, 0, wpi_radio_off, sc); 526 TASK_INIT(&sc->sc_radioon_task, 0, wpi_radio_on, sc); 527 528 sc->sc_tq = taskqueue_create("wpi_taskq", M_WAITOK, 529 taskqueue_thread_enqueue, &sc->sc_tq); 530 error = taskqueue_start_threads(&sc->sc_tq, 1, 0, "wpi_taskq"); 531 if (error != 0) { 532 device_printf(dev, "can't start threads, error %d\n", error); 533 goto fail; 534 } 535 536 wpi_sysctlattach(sc); 537 538 /* 539 * Hook our interrupt after all initialization is complete. 540 */ 541 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 542 NULL, wpi_intr, sc, &sc->sc_ih); 543 if (error != 0) { 544 device_printf(dev, "can't establish interrupt, error %d\n", 545 error); 546 goto fail; 547 } 548 549 if (bootverbose) 550 ieee80211_announce(ic); 551 552#ifdef WPI_DEBUG 553 if (sc->sc_debug & WPI_DEBUG_HW) 554 ieee80211_announce_channels(ic); 555#endif 556 557 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 558 return 0; 559 560fail: wpi_detach(dev); 561 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__); 562 return error; 563} 564 565/* 566 * Attach the interface to 802.11 radiotap. 567 */ 568static void 569wpi_radiotap_attach(struct wpi_softc *sc) 570{ 571 struct wpi_rx_radiotap_header *rxtap = &sc->sc_rxtap; 572 struct wpi_tx_radiotap_header *txtap = &sc->sc_txtap; 573 574 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 575 ieee80211_radiotap_attach(&sc->sc_ic, 576 &txtap->wt_ihdr, sizeof(*txtap), WPI_TX_RADIOTAP_PRESENT, 577 &rxtap->wr_ihdr, sizeof(*rxtap), WPI_RX_RADIOTAP_PRESENT); 578 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 579} 580 581static void 582wpi_sysctlattach(struct wpi_softc *sc) 583{ 584#ifdef WPI_DEBUG 585 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); 586 struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); 587 588 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 589 "debug", CTLFLAG_RW, &sc->sc_debug, sc->sc_debug, 590 "control debugging printfs"); 591#endif 592} 593 594static void 595wpi_init_beacon(struct wpi_vap *wvp) 596{ 597 struct wpi_buf *bcn = &wvp->wv_bcbuf; 598 struct wpi_cmd_beacon *cmd = (struct wpi_cmd_beacon *)&bcn->data; 599 600 cmd->id = WPI_ID_BROADCAST; 601 cmd->ofdm_mask = 0xff; 602 cmd->cck_mask = 0x0f; 603 cmd->lifetime = htole32(WPI_LIFETIME_INFINITE); 604 605 /* 606 * XXX WPI_TX_AUTO_SEQ seems to be ignored - workaround this issue 607 * XXX by using WPI_TX_NEED_ACK instead (with some side effects). 608 */ 609 cmd->flags = htole32(WPI_TX_NEED_ACK | WPI_TX_INSERT_TSTAMP); 610 611 bcn->code = WPI_CMD_SET_BEACON; 612 bcn->ac = WPI_CMD_QUEUE_NUM; 613 bcn->size = sizeof(struct wpi_cmd_beacon); 614} 615 616static struct ieee80211vap * 617wpi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 618 enum ieee80211_opmode opmode, int flags, 619 const uint8_t bssid[IEEE80211_ADDR_LEN], 620 const uint8_t mac[IEEE80211_ADDR_LEN]) 621{ 622 struct wpi_vap *wvp; 623 struct ieee80211vap *vap; 624 625 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 626 return NULL; 627 628 wvp = malloc(sizeof(struct wpi_vap), M_80211_VAP, M_WAITOK | M_ZERO); 629 vap = &wvp->wv_vap; 630 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 631 632 if (opmode == IEEE80211_M_IBSS || opmode == IEEE80211_M_HOSTAP) { 633 WPI_VAP_LOCK_INIT(wvp); 634 wpi_init_beacon(wvp); 635 } 636 637 /* Override with driver methods. */ 638 vap->iv_key_set = wpi_key_set; 639 vap->iv_key_delete = wpi_key_delete; 640 wvp->wv_recv_mgmt = vap->iv_recv_mgmt; 641 vap->iv_recv_mgmt = wpi_recv_mgmt; 642 wvp->wv_newstate = vap->iv_newstate; 643 vap->iv_newstate = wpi_newstate; 644 vap->iv_update_beacon = wpi_update_beacon; 645 vap->iv_max_aid = WPI_ID_IBSS_MAX - WPI_ID_IBSS_MIN + 1; 646 647 ieee80211_ratectl_init(vap); 648 /* Complete setup. */ 649 ieee80211_vap_attach(vap, ieee80211_media_change, 650 ieee80211_media_status, mac); 651 ic->ic_opmode = opmode; 652 return vap; 653} 654 655static void 656wpi_vap_delete(struct ieee80211vap *vap) 657{ 658 struct wpi_vap *wvp = WPI_VAP(vap); 659 struct wpi_buf *bcn = &wvp->wv_bcbuf; 660 enum ieee80211_opmode opmode = vap->iv_opmode; 661 662 ieee80211_ratectl_deinit(vap); 663 ieee80211_vap_detach(vap); 664 665 if (opmode == IEEE80211_M_IBSS || opmode == IEEE80211_M_HOSTAP) { 666 if (bcn->m != NULL) 667 m_freem(bcn->m); 668 669 WPI_VAP_LOCK_DESTROY(wvp); 670 } 671 672 free(wvp, M_80211_VAP); 673} 674 675static int 676wpi_detach(device_t dev) 677{ 678 struct wpi_softc *sc = device_get_softc(dev); 679 struct ieee80211com *ic = &sc->sc_ic; 680 int qid; 681 682 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 683 684 if (ic->ic_vap_create == wpi_vap_create) { 685 ieee80211_draintask(ic, &sc->sc_radioon_task); 686 687 wpi_stop(sc); 688 689 if (sc->sc_tq != NULL) { 690 taskqueue_drain_all(sc->sc_tq); 691 taskqueue_free(sc->sc_tq); 692 } 693 694 callout_drain(&sc->watchdog_rfkill); 695 callout_drain(&sc->tx_timeout); 696 callout_drain(&sc->scan_timeout); 697 callout_drain(&sc->calib_to); 698 ieee80211_ifdetach(ic); 699 } 700 701 /* Uninstall interrupt handler. */ 702 if (sc->irq != NULL) { 703 bus_teardown_intr(dev, sc->irq, sc->sc_ih); 704 bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), 705 sc->irq); 706 pci_release_msi(dev); 707 } 708 709 if (sc->txq[0].data_dmat) { 710 /* Free DMA resources. */ 711 for (qid = 0; qid < WPI_NTXQUEUES; qid++) 712 wpi_free_tx_ring(sc, &sc->txq[qid]); 713 714 wpi_free_rx_ring(sc); 715 wpi_free_shared(sc); 716 } 717 718 if (sc->fw_dma.tag) 719 wpi_free_fwmem(sc); 720 721 if (sc->mem != NULL) 722 bus_release_resource(dev, SYS_RES_MEMORY, 723 rman_get_rid(sc->mem), sc->mem); 724 725 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 726 WPI_TXQ_STATE_LOCK_DESTROY(sc); 727 WPI_TXQ_LOCK_DESTROY(sc); 728 WPI_NT_LOCK_DESTROY(sc); 729 WPI_RXON_LOCK_DESTROY(sc); 730 WPI_TX_LOCK_DESTROY(sc); 731 WPI_LOCK_DESTROY(sc); 732 return 0; 733} 734 735static int 736wpi_shutdown(device_t dev) 737{ 738 struct wpi_softc *sc = device_get_softc(dev); 739 740 wpi_stop(sc); 741 return 0; 742} 743 744static int 745wpi_suspend(device_t dev) 746{ 747 struct wpi_softc *sc = device_get_softc(dev); 748 struct ieee80211com *ic = &sc->sc_ic; 749 750 ieee80211_suspend_all(ic); 751 return 0; 752} 753 754static int 755wpi_resume(device_t dev) 756{ 757 struct wpi_softc *sc = device_get_softc(dev); 758 struct ieee80211com *ic = &sc->sc_ic; 759 760 /* Clear device-specific "PCI retry timeout" register (41h). */ 761 pci_write_config(dev, 0x41, 0, 1); 762 763 ieee80211_resume_all(ic); 764 return 0; 765} 766 767/* 768 * Grab exclusive access to NIC memory. 769 */ 770static int 771wpi_nic_lock(struct wpi_softc *sc) 772{ 773 int ntries; 774 775 /* Request exclusive access to NIC. */ 776 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ); 777 778 /* Spin until we actually get the lock. */ 779 for (ntries = 0; ntries < 1000; ntries++) { 780 if ((WPI_READ(sc, WPI_GP_CNTRL) & 781 (WPI_GP_CNTRL_MAC_ACCESS_ENA | WPI_GP_CNTRL_SLEEP)) == 782 WPI_GP_CNTRL_MAC_ACCESS_ENA) 783 return 0; 784 DELAY(10); 785 } 786 787 device_printf(sc->sc_dev, "could not lock memory\n"); 788 789 return ETIMEDOUT; 790} 791 792/* 793 * Release lock on NIC memory. 794 */ 795static __inline void 796wpi_nic_unlock(struct wpi_softc *sc) 797{ 798 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ); 799} 800 801static __inline uint32_t 802wpi_prph_read(struct wpi_softc *sc, uint32_t addr) 803{ 804 WPI_WRITE(sc, WPI_PRPH_RADDR, WPI_PRPH_DWORD | addr); 805 WPI_BARRIER_READ_WRITE(sc); 806 return WPI_READ(sc, WPI_PRPH_RDATA); 807} 808 809static __inline void 810wpi_prph_write(struct wpi_softc *sc, uint32_t addr, uint32_t data) 811{ 812 WPI_WRITE(sc, WPI_PRPH_WADDR, WPI_PRPH_DWORD | addr); 813 WPI_BARRIER_WRITE(sc); 814 WPI_WRITE(sc, WPI_PRPH_WDATA, data); 815} 816 817static __inline void 818wpi_prph_setbits(struct wpi_softc *sc, uint32_t addr, uint32_t mask) 819{ 820 wpi_prph_write(sc, addr, wpi_prph_read(sc, addr) | mask); 821} 822 823static __inline void 824wpi_prph_clrbits(struct wpi_softc *sc, uint32_t addr, uint32_t mask) 825{ 826 wpi_prph_write(sc, addr, wpi_prph_read(sc, addr) & ~mask); 827} 828 829static __inline void 830wpi_prph_write_region_4(struct wpi_softc *sc, uint32_t addr, 831 const uint32_t *data, int count) 832{ 833 for (; count > 0; count--, data++, addr += 4) 834 wpi_prph_write(sc, addr, *data); 835} 836 837static __inline uint32_t 838wpi_mem_read(struct wpi_softc *sc, uint32_t addr) 839{ 840 WPI_WRITE(sc, WPI_MEM_RADDR, addr); 841 WPI_BARRIER_READ_WRITE(sc); 842 return WPI_READ(sc, WPI_MEM_RDATA); 843} 844 845static __inline void 846wpi_mem_read_region_4(struct wpi_softc *sc, uint32_t addr, uint32_t *data, 847 int count) 848{ 849 for (; count > 0; count--, addr += 4) 850 *data++ = wpi_mem_read(sc, addr); 851} 852 853static int 854wpi_read_prom_data(struct wpi_softc *sc, uint32_t addr, void *data, int count) 855{ 856 uint8_t *out = data; 857 uint32_t val; 858 int error, ntries; 859 860 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 861 862 if ((error = wpi_nic_lock(sc)) != 0) 863 return error; 864 865 for (; count > 0; count -= 2, addr++) { 866 WPI_WRITE(sc, WPI_EEPROM, addr << 2); 867 for (ntries = 0; ntries < 10; ntries++) { 868 val = WPI_READ(sc, WPI_EEPROM); 869 if (val & WPI_EEPROM_READ_VALID) 870 break; 871 DELAY(5); 872 } 873 if (ntries == 10) { 874 device_printf(sc->sc_dev, 875 "timeout reading ROM at 0x%x\n", addr); 876 return ETIMEDOUT; 877 } 878 *out++= val >> 16; 879 if (count > 1) 880 *out ++= val >> 24; 881 } 882 883 wpi_nic_unlock(sc); 884 885 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 886 887 return 0; 888} 889 890static void 891wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 892{ 893 if (error != 0) 894 return; 895 KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs)); 896 *(bus_addr_t *)arg = segs[0].ds_addr; 897} 898 899/* 900 * Allocates a contiguous block of dma memory of the requested size and 901 * alignment. 902 */ 903static int 904wpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma, 905 void **kvap, bus_size_t size, bus_size_t alignment) 906{ 907 int error; 908 909 dma->tag = NULL; 910 dma->size = size; 911 912 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), alignment, 913 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size, 914 1, size, BUS_DMA_NOWAIT, NULL, NULL, &dma->tag); 915 if (error != 0) 916 goto fail; 917 918 error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr, 919 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map); 920 if (error != 0) 921 goto fail; 922 923 error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size, 924 wpi_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT); 925 if (error != 0) 926 goto fail; 927 928 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 929 930 if (kvap != NULL) 931 *kvap = dma->vaddr; 932 933 return 0; 934 935fail: wpi_dma_contig_free(dma); 936 return error; 937} 938 939static void 940wpi_dma_contig_free(struct wpi_dma_info *dma) 941{ 942 if (dma->vaddr != NULL) { 943 bus_dmamap_sync(dma->tag, dma->map, 944 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 945 bus_dmamap_unload(dma->tag, dma->map); 946 bus_dmamem_free(dma->tag, dma->vaddr, dma->map); 947 dma->vaddr = NULL; 948 } 949 if (dma->tag != NULL) { 950 bus_dma_tag_destroy(dma->tag); 951 dma->tag = NULL; 952 } 953} 954 955/* 956 * Allocate a shared page between host and NIC. 957 */ 958static int 959wpi_alloc_shared(struct wpi_softc *sc) 960{ 961 /* Shared buffer must be aligned on a 4KB boundary. */ 962 return wpi_dma_contig_alloc(sc, &sc->shared_dma, 963 (void **)&sc->shared, sizeof (struct wpi_shared), 4096); 964} 965 966static void 967wpi_free_shared(struct wpi_softc *sc) 968{ 969 wpi_dma_contig_free(&sc->shared_dma); 970} 971 972/* 973 * Allocate DMA-safe memory for firmware transfer. 974 */ 975static int 976wpi_alloc_fwmem(struct wpi_softc *sc) 977{ 978 /* Must be aligned on a 16-byte boundary. */ 979 return wpi_dma_contig_alloc(sc, &sc->fw_dma, NULL, 980 WPI_FW_TEXT_MAXSZ + WPI_FW_DATA_MAXSZ, 16); 981} 982 983static void 984wpi_free_fwmem(struct wpi_softc *sc) 985{ 986 wpi_dma_contig_free(&sc->fw_dma); 987} 988 989static int 990wpi_alloc_rx_ring(struct wpi_softc *sc) 991{ 992 struct wpi_rx_ring *ring = &sc->rxq; 993 bus_size_t size; 994 int i, error; 995 996 ring->cur = 0; 997 ring->update = 0; 998 999 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 1000 1001 /* Allocate RX descriptors (16KB aligned.) */ 1002 size = WPI_RX_RING_COUNT * sizeof (uint32_t); 1003 error = wpi_dma_contig_alloc(sc, &ring->desc_dma, 1004 (void **)&ring->desc, size, WPI_RING_DMA_ALIGN); 1005 if (error != 0) { 1006 device_printf(sc->sc_dev, 1007 "%s: could not allocate RX ring DMA memory, error %d\n", 1008 __func__, error); 1009 goto fail; 1010 } 1011 1012 /* Create RX buffer DMA tag. */ 1013 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 1014 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 1015 MJUMPAGESIZE, 1, MJUMPAGESIZE, BUS_DMA_NOWAIT, NULL, NULL, 1016 &ring->data_dmat); 1017 if (error != 0) { 1018 device_printf(sc->sc_dev, 1019 "%s: could not create RX buf DMA tag, error %d\n", 1020 __func__, error); 1021 goto fail; 1022 } 1023 1024 /* 1025 * Allocate and map RX buffers. 1026 */ 1027 for (i = 0; i < WPI_RX_RING_COUNT; i++) { 1028 struct wpi_rx_data *data = &ring->data[i]; 1029 bus_addr_t paddr; 1030 1031 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 1032 if (error != 0) { 1033 device_printf(sc->sc_dev, 1034 "%s: could not create RX buf DMA map, error %d\n", 1035 __func__, error); 1036 goto fail; 1037 } 1038 1039 data->m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE); 1040 if (data->m == NULL) { 1041 device_printf(sc->sc_dev, 1042 "%s: could not allocate RX mbuf\n", __func__); 1043 error = ENOBUFS; 1044 goto fail; 1045 } 1046 1047 error = bus_dmamap_load(ring->data_dmat, data->map, 1048 mtod(data->m, void *), MJUMPAGESIZE, wpi_dma_map_addr, 1049 &paddr, BUS_DMA_NOWAIT); 1050 if (error != 0 && error != EFBIG) { 1051 device_printf(sc->sc_dev, 1052 "%s: can't map mbuf (error %d)\n", __func__, 1053 error); 1054 goto fail; 1055 } 1056 1057 /* Set physical address of RX buffer. */ 1058 ring->desc[i] = htole32(paddr); 1059 } 1060 1061 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 1062 BUS_DMASYNC_PREWRITE); 1063 1064 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 1065 1066 return 0; 1067 1068fail: wpi_free_rx_ring(sc); 1069 1070 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__); 1071 1072 return error; 1073} 1074 1075static void 1076wpi_update_rx_ring(struct wpi_softc *sc) 1077{ 1078 WPI_WRITE(sc, WPI_FH_RX_WPTR, sc->rxq.cur & ~7); 1079} 1080 1081static void 1082wpi_update_rx_ring_ps(struct wpi_softc *sc) 1083{ 1084 struct wpi_rx_ring *ring = &sc->rxq; 1085 1086 if (ring->update != 0) { 1087 /* Wait for INT_WAKEUP event. */ 1088 return; 1089 } 1090 1091 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ); 1092 if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_SLEEP) { 1093 DPRINTF(sc, WPI_DEBUG_PWRSAVE, "%s: wakeup request\n", 1094 __func__); 1095 ring->update = 1; 1096 } else { 1097 wpi_update_rx_ring(sc); 1098 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ); 1099 } 1100} 1101 1102static void 1103wpi_reset_rx_ring(struct wpi_softc *sc) 1104{ 1105 struct wpi_rx_ring *ring = &sc->rxq; 1106 int ntries; 1107 1108 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 1109 1110 if (wpi_nic_lock(sc) == 0) { 1111 WPI_WRITE(sc, WPI_FH_RX_CONFIG, 0); 1112 for (ntries = 0; ntries < 1000; ntries++) { 1113 if (WPI_READ(sc, WPI_FH_RX_STATUS) & 1114 WPI_FH_RX_STATUS_IDLE) 1115 break; 1116 DELAY(10); 1117 } 1118 wpi_nic_unlock(sc); 1119 } 1120 1121 ring->cur = 0; 1122 ring->update = 0; 1123} 1124 1125static void 1126wpi_free_rx_ring(struct wpi_softc *sc) 1127{ 1128 struct wpi_rx_ring *ring = &sc->rxq; 1129 int i; 1130 1131 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 1132 1133 wpi_dma_contig_free(&ring->desc_dma); 1134 1135 for (i = 0; i < WPI_RX_RING_COUNT; i++) { 1136 struct wpi_rx_data *data = &ring->data[i]; 1137 1138 if (data->m != NULL) { 1139 bus_dmamap_sync(ring->data_dmat, data->map, 1140 BUS_DMASYNC_POSTREAD); 1141 bus_dmamap_unload(ring->data_dmat, data->map); 1142 m_freem(data->m); 1143 data->m = NULL; 1144 } 1145 if (data->map != NULL) 1146 bus_dmamap_destroy(ring->data_dmat, data->map); 1147 } 1148 if (ring->data_dmat != NULL) { 1149 bus_dma_tag_destroy(ring->data_dmat); 1150 ring->data_dmat = NULL; 1151 } 1152} 1153 1154static int 1155wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int qid) 1156{ 1157 bus_addr_t paddr; 1158 bus_size_t size; 1159 int i, error; 1160 1161 ring->qid = qid; 1162 ring->queued = 0; 1163 ring->cur = 0; 1164 ring->update = 0; 1165 1166 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 1167 1168 /* Allocate TX descriptors (16KB aligned.) */ 1169 size = WPI_TX_RING_COUNT * sizeof (struct wpi_tx_desc); 1170 error = wpi_dma_contig_alloc(sc, &ring->desc_dma, (void **)&ring->desc, 1171 size, WPI_RING_DMA_ALIGN); 1172 if (error != 0) { 1173 device_printf(sc->sc_dev, 1174 "%s: could not allocate TX ring DMA memory, error %d\n", 1175 __func__, error); 1176 goto fail; 1177 } 1178 1179 /* Update shared area with ring physical address. */ 1180 sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr); 1181 bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map, 1182 BUS_DMASYNC_PREWRITE); 1183 1184 /* 1185 * We only use rings 0 through 4 (4 EDCA + cmd) so there is no need 1186 * to allocate commands space for other rings. 1187 * XXX Do we really need to allocate descriptors for other rings? 1188 */ 1189 if (qid > WPI_CMD_QUEUE_NUM) { 1190 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 1191 return 0; 1192 } 1193 1194 size = WPI_TX_RING_COUNT * sizeof (struct wpi_tx_cmd); 1195 error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd, 1196 size, 4); 1197 if (error != 0) { 1198 device_printf(sc->sc_dev, 1199 "%s: could not allocate TX cmd DMA memory, error %d\n", 1200 __func__, error); 1201 goto fail; 1202 } 1203 1204 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 1205 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1206 WPI_MAX_SCATTER - 1, MCLBYTES, BUS_DMA_NOWAIT, NULL, NULL, 1207 &ring->data_dmat); 1208 if (error != 0) { 1209 device_printf(sc->sc_dev, 1210 "%s: could not create TX buf DMA tag, error %d\n", 1211 __func__, error); 1212 goto fail; 1213 } 1214 1215 paddr = ring->cmd_dma.paddr; 1216 for (i = 0; i < WPI_TX_RING_COUNT; i++) { 1217 struct wpi_tx_data *data = &ring->data[i]; 1218 1219 data->cmd_paddr = paddr; 1220 paddr += sizeof (struct wpi_tx_cmd); 1221 1222 error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 1223 if (error != 0) { 1224 device_printf(sc->sc_dev, 1225 "%s: could not create TX buf DMA map, error %d\n", 1226 __func__, error); 1227 goto fail; 1228 } 1229 } 1230 1231 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 1232 1233 return 0; 1234 1235fail: wpi_free_tx_ring(sc, ring); 1236 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__); 1237 return error; 1238} 1239 1240static void 1241wpi_update_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring) 1242{ 1243 WPI_WRITE(sc, WPI_HBUS_TARG_WRPTR, ring->qid << 8 | ring->cur); 1244} 1245 1246static void 1247wpi_update_tx_ring_ps(struct wpi_softc *sc, struct wpi_tx_ring *ring) 1248{ 1249 1250 if (ring->update != 0) { 1251 /* Wait for INT_WAKEUP event. */ 1252 return; 1253 } 1254 1255 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ); 1256 if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_SLEEP) { 1257 DPRINTF(sc, WPI_DEBUG_PWRSAVE, "%s (%d): requesting wakeup\n", 1258 __func__, ring->qid); 1259 ring->update = 1; 1260 } else { 1261 wpi_update_tx_ring(sc, ring); 1262 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ); 1263 } 1264} 1265 1266static void 1267wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring) 1268{ 1269 int i; 1270 1271 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 1272 1273 for (i = 0; i < WPI_TX_RING_COUNT; i++) { 1274 struct wpi_tx_data *data = &ring->data[i]; 1275 1276 if (data->m != NULL) { 1277 bus_dmamap_sync(ring->data_dmat, data->map, 1278 BUS_DMASYNC_POSTWRITE); 1279 bus_dmamap_unload(ring->data_dmat, data->map); 1280 m_freem(data->m); 1281 data->m = NULL; 1282 } 1283 if (data->ni != NULL) { 1284 ieee80211_free_node(data->ni); 1285 data->ni = NULL; 1286 } 1287 } 1288 /* Clear TX descriptors. */ 1289 memset(ring->desc, 0, ring->desc_dma.size); 1290 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 1291 BUS_DMASYNC_PREWRITE); 1292 ring->queued = 0; 1293 ring->cur = 0; 1294 ring->update = 0; 1295} 1296 1297static void 1298wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring) 1299{ 1300 int i; 1301 1302 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 1303 1304 wpi_dma_contig_free(&ring->desc_dma); 1305 wpi_dma_contig_free(&ring->cmd_dma); 1306 1307 for (i = 0; i < WPI_TX_RING_COUNT; i++) { 1308 struct wpi_tx_data *data = &ring->data[i]; 1309 1310 if (data->m != NULL) { 1311 bus_dmamap_sync(ring->data_dmat, data->map, 1312 BUS_DMASYNC_POSTWRITE); 1313 bus_dmamap_unload(ring->data_dmat, data->map); 1314 m_freem(data->m); 1315 } 1316 if (data->map != NULL) 1317 bus_dmamap_destroy(ring->data_dmat, data->map); 1318 } 1319 if (ring->data_dmat != NULL) { 1320 bus_dma_tag_destroy(ring->data_dmat); 1321 ring->data_dmat = NULL; 1322 } 1323} 1324 1325/* 1326 * Extract various information from EEPROM. 1327 */ 1328static int 1329wpi_read_eeprom(struct wpi_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN]) 1330{ 1331#define WPI_CHK(res) do { \ 1332 if ((error = res) != 0) \ 1333 goto fail; \ 1334} while (0) 1335 int error, i; 1336 1337 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 1338 1339 /* Adapter has to be powered on for EEPROM access to work. */ 1340 if ((error = wpi_apm_init(sc)) != 0) { 1341 device_printf(sc->sc_dev, 1342 "%s: could not power ON adapter, error %d\n", __func__, 1343 error); 1344 return error; 1345 } 1346 1347 if ((WPI_READ(sc, WPI_EEPROM_GP) & 0x6) == 0) { 1348 device_printf(sc->sc_dev, "bad EEPROM signature\n"); 1349 error = EIO; 1350 goto fail; 1351 } 1352 /* Clear HW ownership of EEPROM. */ 1353 WPI_CLRBITS(sc, WPI_EEPROM_GP, WPI_EEPROM_GP_IF_OWNER); 1354 1355 /* Read the hardware capabilities, revision and SKU type. */ 1356 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_SKU_CAP, &sc->cap, 1357 sizeof(sc->cap))); 1358 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_REVISION, &sc->rev, 1359 sizeof(sc->rev))); 1360 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_TYPE, &sc->type, 1361 sizeof(sc->type))); 1362 1363 sc->rev = le16toh(sc->rev); 1364 DPRINTF(sc, WPI_DEBUG_EEPROM, "cap=%x rev=%x type=%x\n", sc->cap, 1365 sc->rev, sc->type); 1366 1367 /* Read the regulatory domain (4 ASCII characters.) */ 1368 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_DOMAIN, sc->domain, 1369 sizeof(sc->domain))); 1370 1371 /* Read MAC address. */ 1372 WPI_CHK(wpi_read_prom_data(sc, WPI_EEPROM_MAC, macaddr, 1373 IEEE80211_ADDR_LEN)); 1374 1375 /* Read the list of authorized channels. */ 1376 for (i = 0; i < WPI_CHAN_BANDS_COUNT; i++) 1377 WPI_CHK(wpi_read_eeprom_channels(sc, i)); 1378 1379 /* Read the list of TX power groups. */ 1380 for (i = 0; i < WPI_POWER_GROUPS_COUNT; i++) 1381 WPI_CHK(wpi_read_eeprom_group(sc, i)); 1382 1383fail: wpi_apm_stop(sc); /* Power OFF adapter. */ 1384 1385 DPRINTF(sc, WPI_DEBUG_TRACE, error ? TRACE_STR_END_ERR : TRACE_STR_END, 1386 __func__); 1387 1388 return error; 1389#undef WPI_CHK 1390} 1391 1392/* 1393 * Translate EEPROM flags to net80211. 1394 */ 1395static uint32_t 1396wpi_eeprom_channel_flags(struct wpi_eeprom_chan *channel) 1397{ 1398 uint32_t nflags; 1399 1400 nflags = 0; 1401 if ((channel->flags & WPI_EEPROM_CHAN_ACTIVE) == 0) 1402 nflags |= IEEE80211_CHAN_PASSIVE; 1403 if ((channel->flags & WPI_EEPROM_CHAN_IBSS) == 0) 1404 nflags |= IEEE80211_CHAN_NOADHOC; 1405 if (channel->flags & WPI_EEPROM_CHAN_RADAR) { 1406 nflags |= IEEE80211_CHAN_DFS; 1407 /* XXX apparently IBSS may still be marked */ 1408 nflags |= IEEE80211_CHAN_NOADHOC; 1409 } 1410 1411 /* XXX HOSTAP uses WPI_MODE_IBSS */ 1412 if (nflags & IEEE80211_CHAN_NOADHOC) 1413 nflags |= IEEE80211_CHAN_NOHOSTAP; 1414 1415 return nflags; 1416} 1417 1418static void 1419wpi_read_eeprom_band(struct wpi_softc *sc, int n) 1420{ 1421 struct ieee80211com *ic = &sc->sc_ic; 1422 struct wpi_eeprom_chan *channels = sc->eeprom_channels[n]; 1423 const struct wpi_chan_band *band = &wpi_bands[n]; 1424 struct ieee80211_channel *c; 1425 uint8_t chan; 1426 int i, nflags; 1427 1428 for (i = 0; i < band->nchan; i++) { 1429 if (!(channels[i].flags & WPI_EEPROM_CHAN_VALID)) { 1430 DPRINTF(sc, WPI_DEBUG_EEPROM, 1431 "Channel Not Valid: %d, band %d\n", 1432 band->chan[i],n); 1433 continue; 1434 } 1435 1436 chan = band->chan[i]; 1437 nflags = wpi_eeprom_channel_flags(&channels[i]); 1438 1439 c = &ic->ic_channels[ic->ic_nchans++]; 1440 c->ic_ieee = chan; 1441 c->ic_maxregpower = channels[i].maxpwr; 1442 c->ic_maxpower = 2*c->ic_maxregpower; 1443 1444 if (n == 0) { /* 2GHz band */ 1445 c->ic_freq = ieee80211_ieee2mhz(chan, 1446 IEEE80211_CHAN_G); 1447 1448 /* G =>'s B is supported */ 1449 c->ic_flags = IEEE80211_CHAN_B | nflags; 1450 c = &ic->ic_channels[ic->ic_nchans++]; 1451 c[0] = c[-1]; 1452 c->ic_flags = IEEE80211_CHAN_G | nflags; 1453 } else { /* 5GHz band */ 1454 c->ic_freq = ieee80211_ieee2mhz(chan, 1455 IEEE80211_CHAN_A); 1456 1457 c->ic_flags = IEEE80211_CHAN_A | nflags; 1458 } 1459 1460 /* Save maximum allowed TX power for this channel. */ 1461 sc->maxpwr[chan] = channels[i].maxpwr; 1462 1463 DPRINTF(sc, WPI_DEBUG_EEPROM, 1464 "adding chan %d (%dMHz) flags=0x%x maxpwr=%d passive=%d," 1465 " offset %d\n", chan, c->ic_freq, 1466 channels[i].flags, sc->maxpwr[chan], 1467 IEEE80211_IS_CHAN_PASSIVE(c), ic->ic_nchans); 1468 } 1469} 1470 1471/** 1472 * Read the eeprom to find out what channels are valid for the given 1473 * band and update net80211 with what we find. 1474 */ 1475static int 1476wpi_read_eeprom_channels(struct wpi_softc *sc, int n) 1477{ 1478 struct ieee80211com *ic = &sc->sc_ic; 1479 const struct wpi_chan_band *band = &wpi_bands[n]; 1480 int error; 1481 1482 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 1483 1484 error = wpi_read_prom_data(sc, band->addr, &sc->eeprom_channels[n], 1485 band->nchan * sizeof (struct wpi_eeprom_chan)); 1486 if (error != 0) { 1487 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__); 1488 return error; 1489 } 1490 1491 wpi_read_eeprom_band(sc, n); 1492 1493 ieee80211_sort_channels(ic->ic_channels, ic->ic_nchans); 1494 1495 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 1496 1497 return 0; 1498} 1499 1500static struct wpi_eeprom_chan * 1501wpi_find_eeprom_channel(struct wpi_softc *sc, struct ieee80211_channel *c) 1502{ 1503 int i, j; 1504 1505 for (j = 0; j < WPI_CHAN_BANDS_COUNT; j++) 1506 for (i = 0; i < wpi_bands[j].nchan; i++) 1507 if (wpi_bands[j].chan[i] == c->ic_ieee) 1508 return &sc->eeprom_channels[j][i]; 1509 1510 return NULL; 1511} 1512 1513/* 1514 * Enforce flags read from EEPROM. 1515 */ 1516static int 1517wpi_setregdomain(struct ieee80211com *ic, struct ieee80211_regdomain *rd, 1518 int nchan, struct ieee80211_channel chans[]) 1519{ 1520 struct wpi_softc *sc = ic->ic_softc; 1521 int i; 1522 1523 for (i = 0; i < nchan; i++) { 1524 struct ieee80211_channel *c = &chans[i]; 1525 struct wpi_eeprom_chan *channel; 1526 1527 channel = wpi_find_eeprom_channel(sc, c); 1528 if (channel == NULL) { 1529 ic_printf(ic, "%s: invalid channel %u freq %u/0x%x\n", 1530 __func__, c->ic_ieee, c->ic_freq, c->ic_flags); 1531 return EINVAL; 1532 } 1533 c->ic_flags |= wpi_eeprom_channel_flags(channel); 1534 } 1535 1536 return 0; 1537} 1538 1539static int 1540wpi_read_eeprom_group(struct wpi_softc *sc, int n) 1541{ 1542 struct wpi_power_group *group = &sc->groups[n]; 1543 struct wpi_eeprom_group rgroup; 1544 int i, error; 1545 1546 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 1547 1548 if ((error = wpi_read_prom_data(sc, WPI_EEPROM_POWER_GRP + n * 32, 1549 &rgroup, sizeof rgroup)) != 0) { 1550 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__); 1551 return error; 1552 } 1553 1554 /* Save TX power group information. */ 1555 group->chan = rgroup.chan; 1556 group->maxpwr = rgroup.maxpwr; 1557 /* Retrieve temperature at which the samples were taken. */ 1558 group->temp = (int16_t)le16toh(rgroup.temp); 1559 1560 DPRINTF(sc, WPI_DEBUG_EEPROM, 1561 "power group %d: chan=%d maxpwr=%d temp=%d\n", n, group->chan, 1562 group->maxpwr, group->temp); 1563 1564 for (i = 0; i < WPI_SAMPLES_COUNT; i++) { 1565 group->samples[i].index = rgroup.samples[i].index; 1566 group->samples[i].power = rgroup.samples[i].power; 1567 1568 DPRINTF(sc, WPI_DEBUG_EEPROM, 1569 "\tsample %d: index=%d power=%d\n", i, 1570 group->samples[i].index, group->samples[i].power); 1571 } 1572 1573 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 1574 1575 return 0; 1576} 1577 1578static int 1579wpi_add_node_entry_adhoc(struct wpi_softc *sc) 1580{ 1581 int newid = WPI_ID_IBSS_MIN; 1582 1583 for (; newid <= WPI_ID_IBSS_MAX; newid++) { 1584 if ((sc->nodesmsk & (1 << newid)) == 0) { 1585 sc->nodesmsk |= 1 << newid; 1586 return newid; 1587 } 1588 } 1589 1590 return WPI_ID_UNDEFINED; 1591} 1592 1593static __inline int 1594wpi_add_node_entry_sta(struct wpi_softc *sc) 1595{ 1596 sc->nodesmsk |= 1 << WPI_ID_BSS; 1597 1598 return WPI_ID_BSS; 1599} 1600 1601static __inline int 1602wpi_check_node_entry(struct wpi_softc *sc, uint8_t id) 1603{ 1604 if (id == WPI_ID_UNDEFINED) 1605 return 0; 1606 1607 return (sc->nodesmsk >> id) & 1; 1608} 1609 1610static __inline void 1611wpi_clear_node_table(struct wpi_softc *sc) 1612{ 1613 sc->nodesmsk = 0; 1614} 1615 1616static __inline void 1617wpi_del_node_entry(struct wpi_softc *sc, uint8_t id) 1618{ 1619 sc->nodesmsk &= ~(1 << id); 1620} 1621 1622static struct ieee80211_node * 1623wpi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) 1624{ 1625 struct wpi_node *wn; 1626 1627 wn = malloc(sizeof (struct wpi_node), M_80211_NODE, 1628 M_NOWAIT | M_ZERO); 1629 1630 if (wn == NULL) 1631 return NULL; 1632 1633 wn->id = WPI_ID_UNDEFINED; 1634 1635 return &wn->ni; 1636} 1637 1638static void 1639wpi_node_free(struct ieee80211_node *ni) 1640{ 1641 struct wpi_softc *sc = ni->ni_ic->ic_softc; 1642 struct wpi_node *wn = WPI_NODE(ni); 1643 1644 if (wn->id != WPI_ID_UNDEFINED) { 1645 WPI_NT_LOCK(sc); 1646 if (wpi_check_node_entry(sc, wn->id)) { 1647 wpi_del_node_entry(sc, wn->id); 1648 wpi_del_node(sc, ni); 1649 } 1650 WPI_NT_UNLOCK(sc); 1651 } 1652 1653 sc->sc_node_free(ni); 1654} 1655 1656static __inline int 1657wpi_check_bss_filter(struct wpi_softc *sc) 1658{ 1659 return (sc->rxon.filter & htole32(WPI_FILTER_BSS)) != 0; 1660} 1661 1662static void 1663wpi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype, 1664 const struct ieee80211_rx_stats *rxs, 1665 int rssi, int nf) 1666{ 1667 struct ieee80211vap *vap = ni->ni_vap; 1668 struct wpi_softc *sc = vap->iv_ic->ic_softc; 1669 struct wpi_vap *wvp = WPI_VAP(vap); 1670 uint64_t ni_tstamp, rx_tstamp; 1671 1672 wvp->wv_recv_mgmt(ni, m, subtype, rxs, rssi, nf); 1673 1674 if (vap->iv_opmode == IEEE80211_M_IBSS && 1675 vap->iv_state == IEEE80211_S_RUN && 1676 (subtype == IEEE80211_FC0_SUBTYPE_BEACON || 1677 subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP)) { 1678 ni_tstamp = le64toh(ni->ni_tstamp.tsf); 1679 rx_tstamp = le64toh(sc->rx_tstamp); 1680 1681 if (ni_tstamp >= rx_tstamp) { 1682 DPRINTF(sc, WPI_DEBUG_STATE, 1683 "ibss merge, tsf %ju tstamp %ju\n", 1684 (uintmax_t)rx_tstamp, (uintmax_t)ni_tstamp); 1685 (void) ieee80211_ibss_merge(ni); 1686 } 1687 } 1688} 1689 1690static void 1691wpi_restore_node(void *arg, struct ieee80211_node *ni) 1692{ 1693 struct wpi_softc *sc = arg; 1694 struct wpi_node *wn = WPI_NODE(ni); 1695 int error; 1696 1697 WPI_NT_LOCK(sc); 1698 if (wn->id != WPI_ID_UNDEFINED) { 1699 wn->id = WPI_ID_UNDEFINED; 1700 if ((error = wpi_add_ibss_node(sc, ni)) != 0) { 1701 device_printf(sc->sc_dev, 1702 "%s: could not add IBSS node, error %d\n", 1703 __func__, error); 1704 } 1705 } 1706 WPI_NT_UNLOCK(sc); 1707} 1708 1709static void 1710wpi_restore_node_table(struct wpi_softc *sc, struct wpi_vap *wvp) 1711{ 1712 struct ieee80211com *ic = &sc->sc_ic; 1713 1714 /* Set group keys once. */ 1715 WPI_NT_LOCK(sc); 1716 wvp->wv_gtk = 0; 1717 WPI_NT_UNLOCK(sc); 1718 1719 ieee80211_iterate_nodes(&ic->ic_sta, wpi_restore_node, sc); 1720 ieee80211_crypto_reload_keys(ic); 1721} 1722 1723/** 1724 * Called by net80211 when ever there is a change to 80211 state machine 1725 */ 1726static int 1727wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1728{ 1729 struct wpi_vap *wvp = WPI_VAP(vap); 1730 struct ieee80211com *ic = vap->iv_ic; 1731 struct wpi_softc *sc = ic->ic_softc; 1732 int error = 0; 1733 1734 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 1735 1736 WPI_TXQ_LOCK(sc); 1737 if (nstate > IEEE80211_S_INIT && sc->sc_running == 0) { 1738 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__); 1739 WPI_TXQ_UNLOCK(sc); 1740 1741 return ENXIO; 1742 } 1743 WPI_TXQ_UNLOCK(sc); 1744 1745 DPRINTF(sc, WPI_DEBUG_STATE, "%s: %s -> %s\n", __func__, 1746 ieee80211_state_name[vap->iv_state], 1747 ieee80211_state_name[nstate]); 1748 1749 if (vap->iv_state == IEEE80211_S_RUN && nstate < IEEE80211_S_RUN) { 1750 if ((error = wpi_set_pslevel(sc, 0, 0, 1)) != 0) { 1751 device_printf(sc->sc_dev, 1752 "%s: could not set power saving level\n", 1753 __func__); 1754 return error; 1755 } 1756 1757 wpi_set_led(sc, WPI_LED_LINK, 1, 0); 1758 } 1759 1760 switch (nstate) { 1761 case IEEE80211_S_SCAN: 1762 WPI_RXON_LOCK(sc); 1763 if (wpi_check_bss_filter(sc) != 0) { 1764 sc->rxon.filter &= ~htole32(WPI_FILTER_BSS); 1765 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) { 1766 device_printf(sc->sc_dev, 1767 "%s: could not send RXON\n", __func__); 1768 } 1769 } 1770 WPI_RXON_UNLOCK(sc); 1771 break; 1772 1773 case IEEE80211_S_ASSOC: 1774 if (vap->iv_state != IEEE80211_S_RUN) 1775 break; 1776 /* FALLTHROUGH */ 1777 case IEEE80211_S_AUTH: 1778 /* 1779 * NB: do not optimize AUTH -> AUTH state transmission - 1780 * this will break powersave with non-QoS AP! 1781 */ 1782 1783 /* 1784 * The node must be registered in the firmware before auth. 1785 * Also the associd must be cleared on RUN -> ASSOC 1786 * transitions. 1787 */ 1788 if ((error = wpi_auth(sc, vap)) != 0) { 1789 device_printf(sc->sc_dev, 1790 "%s: could not move to AUTH state, error %d\n", 1791 __func__, error); 1792 } 1793 break; 1794 1795 case IEEE80211_S_RUN: 1796 /* 1797 * RUN -> RUN transition: 1798 * STA mode: Just restart the timers. 1799 * IBSS mode: Process IBSS merge. 1800 */ 1801 if (vap->iv_state == IEEE80211_S_RUN) { 1802 if (vap->iv_opmode != IEEE80211_M_IBSS) { 1803 WPI_RXON_LOCK(sc); 1804 wpi_calib_timeout(sc); 1805 WPI_RXON_UNLOCK(sc); 1806 break; 1807 } else { 1808 /* 1809 * Drop the BSS_FILTER bit 1810 * (there is no another way to change bssid). 1811 */ 1812 WPI_RXON_LOCK(sc); 1813 sc->rxon.filter &= ~htole32(WPI_FILTER_BSS); 1814 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) { 1815 device_printf(sc->sc_dev, 1816 "%s: could not send RXON\n", 1817 __func__); 1818 } 1819 WPI_RXON_UNLOCK(sc); 1820 1821 /* Restore all what was lost. */ 1822 wpi_restore_node_table(sc, wvp); 1823 1824 /* XXX set conditionally? */ 1825 wpi_updateedca(ic); 1826 } 1827 } 1828 1829 /* 1830 * !RUN -> RUN requires setting the association id 1831 * which is done with a firmware cmd. We also defer 1832 * starting the timers until that work is done. 1833 */ 1834 if ((error = wpi_run(sc, vap)) != 0) { 1835 device_printf(sc->sc_dev, 1836 "%s: could not move to RUN state\n", __func__); 1837 } 1838 break; 1839 1840 default: 1841 break; 1842 } 1843 if (error != 0) { 1844 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__); 1845 return error; 1846 } 1847 1848 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 1849 1850 return wvp->wv_newstate(vap, nstate, arg); 1851} 1852 1853static void 1854wpi_calib_timeout(void *arg) 1855{ 1856 struct wpi_softc *sc = arg; 1857 1858 if (wpi_check_bss_filter(sc) == 0) 1859 return; 1860 1861 wpi_power_calibration(sc); 1862 1863 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc); 1864} 1865 1866static __inline uint8_t 1867rate2plcp(const uint8_t rate) 1868{ 1869 switch (rate) { 1870 case 12: return 0xd; 1871 case 18: return 0xf; 1872 case 24: return 0x5; 1873 case 36: return 0x7; 1874 case 48: return 0x9; 1875 case 72: return 0xb; 1876 case 96: return 0x1; 1877 case 108: return 0x3; 1878 case 2: return 10; 1879 case 4: return 20; 1880 case 11: return 55; 1881 case 22: return 110; 1882 default: return 0; 1883 } 1884} 1885 1886static __inline uint8_t 1887plcp2rate(const uint8_t plcp) 1888{ 1889 switch (plcp) { 1890 case 0xd: return 12; 1891 case 0xf: return 18; 1892 case 0x5: return 24; 1893 case 0x7: return 36; 1894 case 0x9: return 48; 1895 case 0xb: return 72; 1896 case 0x1: return 96; 1897 case 0x3: return 108; 1898 case 10: return 2; 1899 case 20: return 4; 1900 case 55: return 11; 1901 case 110: return 22; 1902 default: return 0; 1903 } 1904} 1905 1906/* Quickly determine if a given rate is CCK or OFDM. */ 1907#define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22) 1908 1909static void 1910wpi_rx_done(struct wpi_softc *sc, struct wpi_rx_desc *desc, 1911 struct wpi_rx_data *data) 1912{ 1913 struct ieee80211com *ic = &sc->sc_ic; 1914 struct wpi_rx_ring *ring = &sc->rxq; 1915 struct wpi_rx_stat *stat; 1916 struct wpi_rx_head *head; 1917 struct wpi_rx_tail *tail; 1918 struct ieee80211_frame *wh; 1919 struct ieee80211_node *ni; 1920 struct mbuf *m, *m1; 1921 bus_addr_t paddr; 1922 uint32_t flags; 1923 uint16_t len; 1924 int error; 1925 1926 stat = (struct wpi_rx_stat *)(desc + 1); 1927 1928 if (stat->len > WPI_STAT_MAXLEN) { 1929 device_printf(sc->sc_dev, "invalid RX statistic header\n"); 1930 goto fail1; 1931 } 1932 1933 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTREAD); 1934 head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len); 1935 len = le16toh(head->len); 1936 tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + len); 1937 flags = le32toh(tail->flags); 1938 1939 DPRINTF(sc, WPI_DEBUG_RECV, "%s: idx %d len %d stat len %u rssi %d" 1940 " rate %x chan %d tstamp %ju\n", __func__, ring->cur, 1941 le32toh(desc->len), len, (int8_t)stat->rssi, 1942 head->plcp, head->chan, (uintmax_t)le64toh(tail->tstamp)); 1943 1944 /* Discard frames with a bad FCS early. */ 1945 if ((flags & WPI_RX_NOERROR) != WPI_RX_NOERROR) { 1946 DPRINTF(sc, WPI_DEBUG_RECV, "%s: RX flags error %x\n", 1947 __func__, flags); 1948 goto fail1; 1949 } 1950 /* Discard frames that are too short. */ 1951 if (len < sizeof (struct ieee80211_frame_ack)) { 1952 DPRINTF(sc, WPI_DEBUG_RECV, "%s: frame too short: %d\n", 1953 __func__, len); 1954 goto fail1; 1955 } 1956 1957 m1 = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE); 1958 if (m1 == NULL) { 1959 DPRINTF(sc, WPI_DEBUG_ANY, "%s: no mbuf to restock ring\n", 1960 __func__); 1961 goto fail1; 1962 } 1963 bus_dmamap_unload(ring->data_dmat, data->map); 1964 1965 error = bus_dmamap_load(ring->data_dmat, data->map, mtod(m1, void *), 1966 MJUMPAGESIZE, wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 1967 if (error != 0 && error != EFBIG) { 1968 device_printf(sc->sc_dev, 1969 "%s: bus_dmamap_load failed, error %d\n", __func__, error); 1970 m_freem(m1); 1971 1972 /* Try to reload the old mbuf. */ 1973 error = bus_dmamap_load(ring->data_dmat, data->map, 1974 mtod(data->m, void *), MJUMPAGESIZE, wpi_dma_map_addr, 1975 &paddr, BUS_DMA_NOWAIT); 1976 if (error != 0 && error != EFBIG) { 1977 panic("%s: could not load old RX mbuf", __func__); 1978 } 1979 /* Physical address may have changed. */ 1980 ring->desc[ring->cur] = htole32(paddr); 1981 bus_dmamap_sync(ring->data_dmat, ring->desc_dma.map, 1982 BUS_DMASYNC_PREWRITE); 1983 goto fail1; 1984 } 1985 1986 m = data->m; 1987 data->m = m1; 1988 /* Update RX descriptor. */ 1989 ring->desc[ring->cur] = htole32(paddr); 1990 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 1991 BUS_DMASYNC_PREWRITE); 1992 1993 /* Finalize mbuf. */ 1994 m->m_data = (caddr_t)(head + 1); 1995 m->m_pkthdr.len = m->m_len = len; 1996 1997 /* Grab a reference to the source node. */ 1998 wh = mtod(m, struct ieee80211_frame *); 1999 2000 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 2001 (flags & WPI_RX_CIPHER_MASK) == WPI_RX_CIPHER_CCMP) { 2002 /* Check whether decryption was successful or not. */ 2003 if ((flags & WPI_RX_DECRYPT_MASK) != WPI_RX_DECRYPT_OK) { 2004 DPRINTF(sc, WPI_DEBUG_RECV, 2005 "CCMP decryption failed 0x%x\n", flags); 2006 goto fail2; 2007 } 2008 m->m_flags |= M_WEP; 2009 } 2010 2011 if (len >= sizeof(struct ieee80211_frame_min)) 2012 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 2013 else 2014 ni = NULL; 2015 2016 sc->rx_tstamp = tail->tstamp; 2017 2018 if (ieee80211_radiotap_active(ic)) { 2019 struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap; 2020 2021 tap->wr_flags = 0; 2022 if (head->flags & htole16(WPI_STAT_FLAG_SHPREAMBLE)) 2023 tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 2024 tap->wr_dbm_antsignal = (int8_t)(stat->rssi + WPI_RSSI_OFFSET); 2025 tap->wr_dbm_antnoise = WPI_RSSI_OFFSET; 2026 tap->wr_tsft = tail->tstamp; 2027 tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf; 2028 tap->wr_rate = plcp2rate(head->plcp); 2029 } 2030 2031 WPI_UNLOCK(sc); 2032 2033 /* Send the frame to the 802.11 layer. */ 2034 if (ni != NULL) { 2035 (void)ieee80211_input(ni, m, stat->rssi, WPI_RSSI_OFFSET); 2036 /* Node is no longer needed. */ 2037 ieee80211_free_node(ni); 2038 } else 2039 (void)ieee80211_input_all(ic, m, stat->rssi, WPI_RSSI_OFFSET); 2040 2041 WPI_LOCK(sc); 2042 2043 return; 2044 2045fail2: m_freem(m); 2046 2047fail1: counter_u64_add(ic->ic_ierrors, 1); 2048} 2049 2050static void 2051wpi_rx_statistics(struct wpi_softc *sc, struct wpi_rx_desc *desc, 2052 struct wpi_rx_data *data) 2053{ 2054 /* Ignore */ 2055} 2056 2057static void 2058wpi_tx_done(struct wpi_softc *sc, struct wpi_rx_desc *desc) 2059{ 2060 struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3]; 2061 struct wpi_tx_data *data = &ring->data[desc->idx]; 2062 struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1); 2063 struct mbuf *m; 2064 struct ieee80211_node *ni; 2065 struct ieee80211vap *vap; 2066 struct ieee80211com *ic; 2067 uint32_t status = le32toh(stat->status); 2068 int ackfailcnt = stat->ackfailcnt / WPI_NTRIES_DEFAULT; 2069 2070 KASSERT(data->ni != NULL, ("no node")); 2071 KASSERT(data->m != NULL, ("no mbuf")); 2072 2073 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 2074 2075 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: " 2076 "qid %d idx %d retries %d btkillcnt %d rate %x duration %d " 2077 "status %x\n", __func__, desc->qid, desc->idx, stat->ackfailcnt, 2078 stat->btkillcnt, stat->rate, le32toh(stat->duration), status); 2079 2080 /* Unmap and free mbuf. */ 2081 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE); 2082 bus_dmamap_unload(ring->data_dmat, data->map); 2083 m = data->m, data->m = NULL; 2084 ni = data->ni, data->ni = NULL; 2085 vap = ni->ni_vap; 2086 ic = vap->iv_ic; 2087 2088 /* 2089 * Update rate control statistics for the node. 2090 */ 2091 if (status & WPI_TX_STATUS_FAIL) { 2092 ieee80211_ratectl_tx_complete(vap, ni, 2093 IEEE80211_RATECTL_TX_FAILURE, &ackfailcnt, NULL); 2094 } else 2095 ieee80211_ratectl_tx_complete(vap, ni, 2096 IEEE80211_RATECTL_TX_SUCCESS, &ackfailcnt, NULL); 2097 2098 ieee80211_tx_complete(ni, m, (status & WPI_TX_STATUS_FAIL) != 0); 2099 2100 WPI_TXQ_STATE_LOCK(sc); 2101 if (--ring->queued > 0) 2102 callout_reset(&sc->tx_timeout, 5*hz, wpi_tx_timeout, sc); 2103 else 2104 callout_stop(&sc->tx_timeout); 2105 WPI_TXQ_STATE_UNLOCK(sc); 2106 2107 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 2108} 2109 2110/* 2111 * Process a "command done" firmware notification. This is where we wakeup 2112 * processes waiting for a synchronous command completion. 2113 */ 2114static void 2115wpi_cmd_done(struct wpi_softc *sc, struct wpi_rx_desc *desc) 2116{ 2117 struct wpi_tx_ring *ring = &sc->txq[WPI_CMD_QUEUE_NUM]; 2118 struct wpi_tx_data *data; 2119 2120 DPRINTF(sc, WPI_DEBUG_CMD, "cmd notification qid %x idx %d flags %x " 2121 "type %s len %d\n", desc->qid, desc->idx, 2122 desc->flags, wpi_cmd_str(desc->type), 2123 le32toh(desc->len)); 2124 2125 if ((desc->qid & WPI_RX_DESC_QID_MSK) != WPI_CMD_QUEUE_NUM) 2126 return; /* Not a command ack. */ 2127 2128 KASSERT(ring->queued == 0, ("ring->queued must be 0")); 2129 2130 data = &ring->data[desc->idx]; 2131 2132 /* If the command was mapped in an mbuf, free it. */ 2133 if (data->m != NULL) { 2134 bus_dmamap_sync(ring->data_dmat, data->map, 2135 BUS_DMASYNC_POSTWRITE); 2136 bus_dmamap_unload(ring->data_dmat, data->map); 2137 m_freem(data->m); 2138 data->m = NULL; 2139 } 2140 2141 wakeup(&ring->cmd[desc->idx]); 2142 2143 if (desc->type == WPI_CMD_SET_POWER_MODE) { 2144 WPI_TXQ_LOCK(sc); 2145 if (sc->sc_flags & WPI_PS_PATH) { 2146 sc->sc_update_rx_ring = wpi_update_rx_ring_ps; 2147 sc->sc_update_tx_ring = wpi_update_tx_ring_ps; 2148 } else { 2149 sc->sc_update_rx_ring = wpi_update_rx_ring; 2150 sc->sc_update_tx_ring = wpi_update_tx_ring; 2151 } 2152 WPI_TXQ_UNLOCK(sc); 2153 } 2154} 2155 2156static void 2157wpi_notif_intr(struct wpi_softc *sc) 2158{ 2159 struct ieee80211com *ic = &sc->sc_ic; 2160 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2161 uint32_t hw; 2162 2163 bus_dmamap_sync(sc->shared_dma.tag, sc->shared_dma.map, 2164 BUS_DMASYNC_POSTREAD); 2165 2166 hw = le32toh(sc->shared->next) & 0xfff; 2167 hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1; 2168 2169 while (sc->rxq.cur != hw) { 2170 sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT; 2171 2172 struct wpi_rx_data *data = &sc->rxq.data[sc->rxq.cur]; 2173 struct wpi_rx_desc *desc; 2174 2175 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2176 BUS_DMASYNC_POSTREAD); 2177 desc = mtod(data->m, struct wpi_rx_desc *); 2178 2179 DPRINTF(sc, WPI_DEBUG_NOTIFY, 2180 "%s: cur=%d; qid %x idx %d flags %x type %d(%s) len %d\n", 2181 __func__, sc->rxq.cur, desc->qid, desc->idx, desc->flags, 2182 desc->type, wpi_cmd_str(desc->type), le32toh(desc->len)); 2183 2184 if (!(desc->qid & WPI_UNSOLICITED_RX_NOTIF)) { 2185 /* Reply to a command. */ 2186 wpi_cmd_done(sc, desc); 2187 } 2188 2189 switch (desc->type) { 2190 case WPI_RX_DONE: 2191 /* An 802.11 frame has been received. */ 2192 wpi_rx_done(sc, desc, data); 2193 2194 if (sc->sc_running == 0) { 2195 /* wpi_stop() was called. */ 2196 return; 2197 } 2198 2199 break; 2200 2201 case WPI_TX_DONE: 2202 /* An 802.11 frame has been transmitted. */ 2203 wpi_tx_done(sc, desc); 2204 break; 2205 2206 case WPI_RX_STATISTICS: 2207 case WPI_BEACON_STATISTICS: 2208 wpi_rx_statistics(sc, desc, data); 2209 break; 2210 2211 case WPI_BEACON_MISSED: 2212 { 2213 struct wpi_beacon_missed *miss = 2214 (struct wpi_beacon_missed *)(desc + 1); 2215 uint32_t expected, misses, received, threshold; 2216 2217 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2218 BUS_DMASYNC_POSTREAD); 2219 2220 misses = le32toh(miss->consecutive); 2221 expected = le32toh(miss->expected); 2222 received = le32toh(miss->received); 2223 threshold = MAX(2, vap->iv_bmissthreshold); 2224 2225 DPRINTF(sc, WPI_DEBUG_BMISS, 2226 "%s: beacons missed %u(%u) (received %u/%u)\n", 2227 __func__, misses, le32toh(miss->total), received, 2228 expected); 2229 2230 if (misses >= threshold || 2231 (received == 0 && expected >= threshold)) { 2232 WPI_RXON_LOCK(sc); 2233 if (callout_pending(&sc->scan_timeout)) { 2234 wpi_cmd(sc, WPI_CMD_SCAN_ABORT, NULL, 2235 0, 1); 2236 } 2237 WPI_RXON_UNLOCK(sc); 2238 if (vap->iv_state == IEEE80211_S_RUN && 2239 (ic->ic_flags & IEEE80211_F_SCAN) == 0) 2240 ieee80211_beacon_miss(ic); 2241 } 2242 2243 break; 2244 } 2245#ifdef WPI_DEBUG 2246 case WPI_BEACON_SENT: 2247 { 2248 struct wpi_tx_stat *stat = 2249 (struct wpi_tx_stat *)(desc + 1); 2250 uint64_t *tsf = (uint64_t *)(stat + 1); 2251 uint32_t *mode = (uint32_t *)(tsf + 1); 2252 2253 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2254 BUS_DMASYNC_POSTREAD); 2255 2256 DPRINTF(sc, WPI_DEBUG_BEACON, 2257 "beacon sent: rts %u, ack %u, btkill %u, rate %u, " 2258 "duration %u, status %x, tsf %ju, mode %x\n", 2259 stat->rtsfailcnt, stat->ackfailcnt, 2260 stat->btkillcnt, stat->rate, le32toh(stat->duration), 2261 le32toh(stat->status), *tsf, *mode); 2262 2263 break; 2264 } 2265#endif 2266 case WPI_UC_READY: 2267 { 2268 struct wpi_ucode_info *uc = 2269 (struct wpi_ucode_info *)(desc + 1); 2270 2271 /* The microcontroller is ready. */ 2272 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2273 BUS_DMASYNC_POSTREAD); 2274 DPRINTF(sc, WPI_DEBUG_RESET, 2275 "microcode alive notification version=%d.%d " 2276 "subtype=%x alive=%x\n", uc->major, uc->minor, 2277 uc->subtype, le32toh(uc->valid)); 2278 2279 if (le32toh(uc->valid) != 1) { 2280 device_printf(sc->sc_dev, 2281 "microcontroller initialization failed\n"); 2282 wpi_stop_locked(sc); 2283 return; 2284 } 2285 /* Save the address of the error log in SRAM. */ 2286 sc->errptr = le32toh(uc->errptr); 2287 break; 2288 } 2289 case WPI_STATE_CHANGED: 2290 { 2291 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2292 BUS_DMASYNC_POSTREAD); 2293 2294 uint32_t *status = (uint32_t *)(desc + 1); 2295 2296 DPRINTF(sc, WPI_DEBUG_STATE, "state changed to %x\n", 2297 le32toh(*status)); 2298 2299 if (le32toh(*status) & 1) { 2300 WPI_NT_LOCK(sc); 2301 wpi_clear_node_table(sc); 2302 WPI_NT_UNLOCK(sc); 2303 taskqueue_enqueue(sc->sc_tq, 2304 &sc->sc_radiooff_task); 2305 return; 2306 } 2307 break; 2308 } 2309#ifdef WPI_DEBUG 2310 case WPI_START_SCAN: 2311 { 2312 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2313 BUS_DMASYNC_POSTREAD); 2314 2315 struct wpi_start_scan *scan = 2316 (struct wpi_start_scan *)(desc + 1); 2317 DPRINTF(sc, WPI_DEBUG_SCAN, 2318 "%s: scanning channel %d status %x\n", 2319 __func__, scan->chan, le32toh(scan->status)); 2320 2321 break; 2322 } 2323#endif 2324 case WPI_STOP_SCAN: 2325 { 2326 bus_dmamap_sync(sc->rxq.data_dmat, data->map, 2327 BUS_DMASYNC_POSTREAD); 2328 2329 struct wpi_stop_scan *scan = 2330 (struct wpi_stop_scan *)(desc + 1); 2331 2332 DPRINTF(sc, WPI_DEBUG_SCAN, 2333 "scan finished nchan=%d status=%d chan=%d\n", 2334 scan->nchan, scan->status, scan->chan); 2335 2336 WPI_RXON_LOCK(sc); 2337 callout_stop(&sc->scan_timeout); 2338 WPI_RXON_UNLOCK(sc); 2339 if (scan->status == WPI_SCAN_ABORTED) 2340 ieee80211_cancel_scan(vap); 2341 else 2342 ieee80211_scan_next(vap); 2343 break; 2344 } 2345 } 2346 2347 if (sc->rxq.cur % 8 == 0) { 2348 /* Tell the firmware what we have processed. */ 2349 sc->sc_update_rx_ring(sc); 2350 } 2351 } 2352} 2353 2354/* 2355 * Process an INT_WAKEUP interrupt raised when the microcontroller wakes up 2356 * from power-down sleep mode. 2357 */ 2358static void 2359wpi_wakeup_intr(struct wpi_softc *sc) 2360{ 2361 int qid; 2362 2363 DPRINTF(sc, WPI_DEBUG_PWRSAVE, 2364 "%s: ucode wakeup from power-down sleep\n", __func__); 2365 2366 /* Wakeup RX and TX rings. */ 2367 if (sc->rxq.update) { 2368 sc->rxq.update = 0; 2369 wpi_update_rx_ring(sc); 2370 } 2371 WPI_TXQ_LOCK(sc); 2372 for (qid = 0; qid < WPI_DRV_NTXQUEUES; qid++) { 2373 struct wpi_tx_ring *ring = &sc->txq[qid]; 2374 2375 if (ring->update) { 2376 ring->update = 0; 2377 wpi_update_tx_ring(sc, ring); 2378 } 2379 } 2380 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_MAC_ACCESS_REQ); 2381 WPI_TXQ_UNLOCK(sc); 2382} 2383 2384/* 2385 * This function prints firmware registers 2386 */ 2387#ifdef WPI_DEBUG 2388static void 2389wpi_debug_registers(struct wpi_softc *sc) 2390{ 2391 size_t i; 2392 static const uint32_t csr_tbl[] = { 2393 WPI_HW_IF_CONFIG, 2394 WPI_INT, 2395 WPI_INT_MASK, 2396 WPI_FH_INT, 2397 WPI_GPIO_IN, 2398 WPI_RESET, 2399 WPI_GP_CNTRL, 2400 WPI_EEPROM, 2401 WPI_EEPROM_GP, 2402 WPI_GIO, 2403 WPI_UCODE_GP1, 2404 WPI_UCODE_GP2, 2405 WPI_GIO_CHICKEN, 2406 WPI_ANA_PLL, 2407 WPI_DBG_HPET_MEM, 2408 }; 2409 static const uint32_t prph_tbl[] = { 2410 WPI_APMG_CLK_CTRL, 2411 WPI_APMG_PS, 2412 WPI_APMG_PCI_STT, 2413 WPI_APMG_RFKILL, 2414 }; 2415 2416 DPRINTF(sc, WPI_DEBUG_REGISTER,"%s","\n"); 2417 2418 for (i = 0; i < nitems(csr_tbl); i++) { 2419 DPRINTF(sc, WPI_DEBUG_REGISTER, " %-18s: 0x%08x ", 2420 wpi_get_csr_string(csr_tbl[i]), WPI_READ(sc, csr_tbl[i])); 2421 2422 if ((i + 1) % 2 == 0) 2423 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n"); 2424 } 2425 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n\n"); 2426 2427 if (wpi_nic_lock(sc) == 0) { 2428 for (i = 0; i < nitems(prph_tbl); i++) { 2429 DPRINTF(sc, WPI_DEBUG_REGISTER, " %-18s: 0x%08x ", 2430 wpi_get_prph_string(prph_tbl[i]), 2431 wpi_prph_read(sc, prph_tbl[i])); 2432 2433 if ((i + 1) % 2 == 0) 2434 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n"); 2435 } 2436 DPRINTF(sc, WPI_DEBUG_REGISTER, "\n"); 2437 wpi_nic_unlock(sc); 2438 } else { 2439 DPRINTF(sc, WPI_DEBUG_REGISTER, 2440 "Cannot access internal registers.\n"); 2441 } 2442} 2443#endif 2444 2445/* 2446 * Dump the error log of the firmware when a firmware panic occurs. Although 2447 * we can't debug the firmware because it is neither open source nor free, it 2448 * can help us to identify certain classes of problems. 2449 */ 2450static void 2451wpi_fatal_intr(struct wpi_softc *sc) 2452{ 2453 struct wpi_fw_dump dump; 2454 uint32_t i, offset, count; 2455 2456 /* Check that the error log address is valid. */ 2457 if (sc->errptr < WPI_FW_DATA_BASE || 2458 sc->errptr + sizeof (dump) > 2459 WPI_FW_DATA_BASE + WPI_FW_DATA_MAXSZ) { 2460 printf("%s: bad firmware error log address 0x%08x\n", __func__, 2461 sc->errptr); 2462 return; 2463 } 2464 if (wpi_nic_lock(sc) != 0) { 2465 printf("%s: could not read firmware error log\n", __func__); 2466 return; 2467 } 2468 /* Read number of entries in the log. */ 2469 count = wpi_mem_read(sc, sc->errptr); 2470 if (count == 0 || count * sizeof (dump) > WPI_FW_DATA_MAXSZ) { 2471 printf("%s: invalid count field (count = %u)\n", __func__, 2472 count); 2473 wpi_nic_unlock(sc); 2474 return; 2475 } 2476 /* Skip "count" field. */ 2477 offset = sc->errptr + sizeof (uint32_t); 2478 printf("firmware error log (count = %u):\n", count); 2479 for (i = 0; i < count; i++) { 2480 wpi_mem_read_region_4(sc, offset, (uint32_t *)&dump, 2481 sizeof (dump) / sizeof (uint32_t)); 2482 2483 printf(" error type = \"%s\" (0x%08X)\n", 2484 (dump.desc < nitems(wpi_fw_errmsg)) ? 2485 wpi_fw_errmsg[dump.desc] : "UNKNOWN", 2486 dump.desc); 2487 printf(" error data = 0x%08X\n", 2488 dump.data); 2489 printf(" branch link = 0x%08X%08X\n", 2490 dump.blink[0], dump.blink[1]); 2491 printf(" interrupt link = 0x%08X%08X\n", 2492 dump.ilink[0], dump.ilink[1]); 2493 printf(" time = %u\n", dump.time); 2494 2495 offset += sizeof (dump); 2496 } 2497 wpi_nic_unlock(sc); 2498 /* Dump driver status (TX and RX rings) while we're here. */ 2499 printf("driver status:\n"); 2500 WPI_TXQ_LOCK(sc); 2501 for (i = 0; i < WPI_DRV_NTXQUEUES; i++) { 2502 struct wpi_tx_ring *ring = &sc->txq[i]; 2503 printf(" tx ring %2d: qid=%-2d cur=%-3d queued=%-3d\n", 2504 i, ring->qid, ring->cur, ring->queued); 2505 } 2506 WPI_TXQ_UNLOCK(sc); 2507 printf(" rx ring: cur=%d\n", sc->rxq.cur); 2508} 2509 2510static void 2511wpi_intr(void *arg) 2512{ 2513 struct wpi_softc *sc = arg; 2514 uint32_t r1, r2; 2515 2516 WPI_LOCK(sc); 2517 2518 /* Disable interrupts. */ 2519 WPI_WRITE(sc, WPI_INT_MASK, 0); 2520 2521 r1 = WPI_READ(sc, WPI_INT); 2522 2523 if (r1 == 0xffffffff || (r1 & 0xfffffff0) == 0xa5a5a5a0) 2524 goto end; /* Hardware gone! */ 2525 2526 r2 = WPI_READ(sc, WPI_FH_INT); 2527 2528 DPRINTF(sc, WPI_DEBUG_INTR, "%s: reg1=0x%08x reg2=0x%08x\n", __func__, 2529 r1, r2); 2530 2531 if (r1 == 0 && r2 == 0) 2532 goto done; /* Interrupt not for us. */ 2533 2534 /* Acknowledge interrupts. */ 2535 WPI_WRITE(sc, WPI_INT, r1); 2536 WPI_WRITE(sc, WPI_FH_INT, r2); 2537 2538 if (r1 & (WPI_INT_SW_ERR | WPI_INT_HW_ERR)) { 2539 device_printf(sc->sc_dev, "fatal firmware error\n"); 2540#ifdef WPI_DEBUG 2541 wpi_debug_registers(sc); 2542#endif 2543 wpi_fatal_intr(sc); 2544 DPRINTF(sc, WPI_DEBUG_HW, 2545 "(%s)\n", (r1 & WPI_INT_SW_ERR) ? "(Software Error)" : 2546 "(Hardware Error)"); 2547 taskqueue_enqueue(sc->sc_tq, &sc->sc_reinittask); 2548 goto end; 2549 } 2550 2551 if ((r1 & (WPI_INT_FH_RX | WPI_INT_SW_RX)) || 2552 (r2 & WPI_FH_INT_RX)) 2553 wpi_notif_intr(sc); 2554 2555 if (r1 & WPI_INT_ALIVE) 2556 wakeup(sc); /* Firmware is alive. */ 2557 2558 if (r1 & WPI_INT_WAKEUP) 2559 wpi_wakeup_intr(sc); 2560 2561done: 2562 /* Re-enable interrupts. */ 2563 if (sc->sc_running) 2564 WPI_WRITE(sc, WPI_INT_MASK, WPI_INT_MASK_DEF); 2565 2566end: WPI_UNLOCK(sc); 2567} 2568 2569static int 2570wpi_cmd2(struct wpi_softc *sc, struct wpi_buf *buf) 2571{ 2572 struct ieee80211_frame *wh; 2573 struct wpi_tx_cmd *cmd; 2574 struct wpi_tx_data *data; 2575 struct wpi_tx_desc *desc; 2576 struct wpi_tx_ring *ring; 2577 struct mbuf *m1; 2578 bus_dma_segment_t *seg, segs[WPI_MAX_SCATTER]; 2579 int error, i, hdrlen, nsegs, totlen, pad; 2580 2581 WPI_TXQ_LOCK(sc); 2582 2583 KASSERT(buf->size <= sizeof(buf->data), ("buffer overflow")); 2584 2585 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 2586 2587 if (sc->sc_running == 0) { 2588 /* wpi_stop() was called */ 2589 error = ENETDOWN; 2590 goto fail; 2591 } 2592 2593 wh = mtod(buf->m, struct ieee80211_frame *); 2594 hdrlen = ieee80211_anyhdrsize(wh); 2595 totlen = buf->m->m_pkthdr.len; 2596 2597 if (hdrlen & 3) { 2598 /* First segment length must be a multiple of 4. */ 2599 pad = 4 - (hdrlen & 3); 2600 } else 2601 pad = 0; 2602 2603 ring = &sc->txq[buf->ac]; 2604 desc = &ring->desc[ring->cur]; 2605 data = &ring->data[ring->cur]; 2606 2607 /* Prepare TX firmware command. */ 2608 cmd = &ring->cmd[ring->cur]; 2609 cmd->code = buf->code; 2610 cmd->flags = 0; 2611 cmd->qid = ring->qid; 2612 cmd->idx = ring->cur; 2613 2614 memcpy(cmd->data, buf->data, buf->size); 2615 2616 /* Save and trim IEEE802.11 header. */ 2617 memcpy((uint8_t *)(cmd->data + buf->size), wh, hdrlen); 2618 m_adj(buf->m, hdrlen); 2619 2620 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, buf->m, 2621 segs, &nsegs, BUS_DMA_NOWAIT); 2622 if (error != 0 && error != EFBIG) { 2623 device_printf(sc->sc_dev, 2624 "%s: can't map mbuf (error %d)\n", __func__, error); 2625 goto fail; 2626 } 2627 if (error != 0) { 2628 /* Too many DMA segments, linearize mbuf. */ 2629 m1 = m_collapse(buf->m, M_NOWAIT, WPI_MAX_SCATTER - 1); 2630 if (m1 == NULL) { 2631 device_printf(sc->sc_dev, 2632 "%s: could not defrag mbuf\n", __func__); 2633 error = ENOBUFS; 2634 goto fail; 2635 } 2636 buf->m = m1; 2637 2638 error = bus_dmamap_load_mbuf_sg(ring->data_dmat, data->map, 2639 buf->m, segs, &nsegs, BUS_DMA_NOWAIT); 2640 if (error != 0) { 2641 device_printf(sc->sc_dev, 2642 "%s: can't map mbuf (error %d)\n", __func__, 2643 error); 2644 goto fail; 2645 } 2646 } 2647 2648 KASSERT(nsegs < WPI_MAX_SCATTER, 2649 ("too many DMA segments, nsegs (%d) should be less than %d", 2650 nsegs, WPI_MAX_SCATTER)); 2651 2652 data->m = buf->m; 2653 data->ni = buf->ni; 2654 2655 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: qid %d idx %d len %d nsegs %d\n", 2656 __func__, ring->qid, ring->cur, totlen, nsegs); 2657 2658 /* Fill TX descriptor. */ 2659 desc->nsegs = WPI_PAD32(totlen + pad) << 4 | (1 + nsegs); 2660 /* First DMA segment is used by the TX command. */ 2661 desc->segs[0].addr = htole32(data->cmd_paddr); 2662 desc->segs[0].len = htole32(4 + buf->size + hdrlen + pad); 2663 /* Other DMA segments are for data payload. */ 2664 seg = &segs[0]; 2665 for (i = 1; i <= nsegs; i++) { 2666 desc->segs[i].addr = htole32(seg->ds_addr); 2667 desc->segs[i].len = htole32(seg->ds_len); 2668 seg++; 2669 } 2670 2671 bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 2672 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map, 2673 BUS_DMASYNC_PREWRITE); 2674 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 2675 BUS_DMASYNC_PREWRITE); 2676 2677 /* Kick TX ring. */ 2678 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT; 2679 sc->sc_update_tx_ring(sc, ring); 2680 2681 if (ring->qid < WPI_CMD_QUEUE_NUM) { 2682 WPI_TXQ_STATE_LOCK(sc); 2683 ring->queued++; 2684 callout_reset(&sc->tx_timeout, 5*hz, wpi_tx_timeout, sc); 2685 WPI_TXQ_STATE_UNLOCK(sc); 2686 } 2687 2688 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 2689 2690 WPI_TXQ_UNLOCK(sc); 2691 2692 return 0; 2693 2694fail: m_freem(buf->m); 2695 2696 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__); 2697 2698 WPI_TXQ_UNLOCK(sc); 2699 2700 return error; 2701} 2702 2703/* 2704 * Construct the data packet for a transmit buffer. 2705 */ 2706static int 2707wpi_tx_data(struct wpi_softc *sc, struct mbuf *m, struct ieee80211_node *ni) 2708{ 2709 const struct ieee80211_txparam *tp; 2710 struct ieee80211vap *vap = ni->ni_vap; 2711 struct ieee80211com *ic = ni->ni_ic; 2712 struct wpi_node *wn = WPI_NODE(ni); 2713 struct ieee80211_channel *chan; 2714 struct ieee80211_frame *wh; 2715 struct ieee80211_key *k = NULL; 2716 struct wpi_buf tx_data; 2717 struct wpi_cmd_data *tx = (struct wpi_cmd_data *)&tx_data.data; 2718 uint32_t flags; 2719 uint16_t qos; 2720 uint8_t tid, type; 2721 int ac, error, swcrypt, rate, ismcast, totlen; 2722 2723 wh = mtod(m, struct ieee80211_frame *); 2724 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2725 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 2726 2727 /* Select EDCA Access Category and TX ring for this frame. */ 2728 if (IEEE80211_QOS_HAS_SEQ(wh)) { 2729 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 2730 tid = qos & IEEE80211_QOS_TID; 2731 } else { 2732 qos = 0; 2733 tid = 0; 2734 } 2735 ac = M_WME_GETAC(m); 2736 2737 chan = (ni->ni_chan != IEEE80211_CHAN_ANYC) ? 2738 ni->ni_chan : ic->ic_curchan; 2739 tp = &vap->iv_txparms[ieee80211_chan2mode(chan)]; 2740 2741 /* Choose a TX rate index. */ 2742 if (type == IEEE80211_FC0_TYPE_MGT) 2743 rate = tp->mgmtrate; 2744 else if (ismcast) 2745 rate = tp->mcastrate; 2746 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 2747 rate = tp->ucastrate; 2748 else if (m->m_flags & M_EAPOL) 2749 rate = tp->mgmtrate; 2750 else { 2751 /* XXX pass pktlen */ 2752 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2753 rate = ni->ni_txrate; 2754 } 2755 2756 /* Encrypt the frame if need be. */ 2757 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2758 /* Retrieve key for TX. */ 2759 k = ieee80211_crypto_encap(ni, m); 2760 if (k == NULL) { 2761 error = ENOBUFS; 2762 goto fail; 2763 } 2764 swcrypt = k->wk_flags & IEEE80211_KEY_SWCRYPT; 2765 2766 /* 802.11 header may have moved. */ 2767 wh = mtod(m, struct ieee80211_frame *); 2768 } 2769 totlen = m->m_pkthdr.len; 2770 2771 if (ieee80211_radiotap_active_vap(vap)) { 2772 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap; 2773 2774 tap->wt_flags = 0; 2775 tap->wt_rate = rate; 2776 if (k != NULL) 2777 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 2778 2779 ieee80211_radiotap_tx(vap, m); 2780 } 2781 2782 flags = 0; 2783 if (!ismcast) { 2784 /* Unicast frame, check if an ACK is expected. */ 2785 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 2786 IEEE80211_QOS_ACKPOLICY_NOACK) 2787 flags |= WPI_TX_NEED_ACK; 2788 } 2789 2790 if (!IEEE80211_QOS_HAS_SEQ(wh)) 2791 flags |= WPI_TX_AUTO_SEQ; 2792 if (wh->i_fc[1] & IEEE80211_FC1_MORE_FRAG) 2793 flags |= WPI_TX_MORE_FRAG; /* Cannot happen yet. */ 2794 2795 /* Check if frame must be protected using RTS/CTS or CTS-to-self. */ 2796 if (!ismcast) { 2797 /* NB: Group frames are sent using CCK in 802.11b/g. */ 2798 if (totlen + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) { 2799 flags |= WPI_TX_NEED_RTS; 2800 } else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 2801 WPI_RATE_IS_OFDM(rate)) { 2802 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY) 2803 flags |= WPI_TX_NEED_CTS; 2804 else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS) 2805 flags |= WPI_TX_NEED_RTS; 2806 } 2807 2808 if (flags & (WPI_TX_NEED_RTS | WPI_TX_NEED_CTS)) 2809 flags |= WPI_TX_FULL_TXOP; 2810 } 2811 2812 memset(tx, 0, sizeof (struct wpi_cmd_data)); 2813 if (type == IEEE80211_FC0_TYPE_MGT) { 2814 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 2815 2816 /* Tell HW to set timestamp in probe responses. */ 2817 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 2818 flags |= WPI_TX_INSERT_TSTAMP; 2819 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 2820 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 2821 tx->timeout = htole16(3); 2822 else 2823 tx->timeout = htole16(2); 2824 } 2825 2826 if (ismcast || type != IEEE80211_FC0_TYPE_DATA) 2827 tx->id = WPI_ID_BROADCAST; 2828 else { 2829 if (wn->id == WPI_ID_UNDEFINED) { 2830 device_printf(sc->sc_dev, 2831 "%s: undefined node id\n", __func__); 2832 error = EINVAL; 2833 goto fail; 2834 } 2835 2836 tx->id = wn->id; 2837 } 2838 2839 if (k != NULL && !swcrypt) { 2840 switch (k->wk_cipher->ic_cipher) { 2841 case IEEE80211_CIPHER_AES_CCM: 2842 tx->security = WPI_CIPHER_CCMP; 2843 break; 2844 2845 default: 2846 break; 2847 } 2848 2849 memcpy(tx->key, k->wk_key, k->wk_keylen); 2850 } 2851 2852 tx->len = htole16(totlen); 2853 tx->flags = htole32(flags); 2854 tx->plcp = rate2plcp(rate); 2855 tx->tid = tid; 2856 tx->lifetime = htole32(WPI_LIFETIME_INFINITE); 2857 tx->ofdm_mask = 0xff; 2858 tx->cck_mask = 0x0f; 2859 tx->rts_ntries = 7; 2860 tx->data_ntries = tp->maxretry; 2861 2862 tx_data.ni = ni; 2863 tx_data.m = m; 2864 tx_data.size = sizeof(struct wpi_cmd_data); 2865 tx_data.code = WPI_CMD_TX_DATA; 2866 tx_data.ac = ac; 2867 2868 return wpi_cmd2(sc, &tx_data); 2869 2870fail: m_freem(m); 2871 return error; 2872} 2873 2874static int 2875wpi_tx_data_raw(struct wpi_softc *sc, struct mbuf *m, 2876 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params) 2877{ 2878 struct ieee80211vap *vap = ni->ni_vap; 2879 struct ieee80211_key *k = NULL; 2880 struct ieee80211_frame *wh; 2881 struct wpi_buf tx_data; 2882 struct wpi_cmd_data *tx = (struct wpi_cmd_data *)&tx_data.data; 2883 uint32_t flags; 2884 uint8_t type; 2885 int ac, rate, swcrypt, totlen; 2886 2887 wh = mtod(m, struct ieee80211_frame *); 2888 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2889 2890 ac = params->ibp_pri & 3; 2891 2892 /* Choose a TX rate index. */ 2893 rate = params->ibp_rate0; 2894 2895 flags = 0; 2896 if (!IEEE80211_QOS_HAS_SEQ(wh)) 2897 flags |= WPI_TX_AUTO_SEQ; 2898 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 2899 flags |= WPI_TX_NEED_ACK; 2900 if (params->ibp_flags & IEEE80211_BPF_RTS) 2901 flags |= WPI_TX_NEED_RTS; 2902 if (params->ibp_flags & IEEE80211_BPF_CTS) 2903 flags |= WPI_TX_NEED_CTS; 2904 if (flags & (WPI_TX_NEED_RTS | WPI_TX_NEED_CTS)) 2905 flags |= WPI_TX_FULL_TXOP; 2906 2907 /* Encrypt the frame if need be. */ 2908 if (params->ibp_flags & IEEE80211_BPF_CRYPTO) { 2909 /* Retrieve key for TX. */ 2910 k = ieee80211_crypto_encap(ni, m); 2911 if (k == NULL) { 2912 m_freem(m); 2913 return ENOBUFS; 2914 } 2915 swcrypt = k->wk_flags & IEEE80211_KEY_SWCRYPT; 2916 2917 /* 802.11 header may have moved. */ 2918 wh = mtod(m, struct ieee80211_frame *); 2919 } 2920 totlen = m->m_pkthdr.len; 2921 2922 if (ieee80211_radiotap_active_vap(vap)) { 2923 struct wpi_tx_radiotap_header *tap = &sc->sc_txtap; 2924 2925 tap->wt_flags = 0; 2926 tap->wt_rate = rate; 2927 if (params->ibp_flags & IEEE80211_BPF_CRYPTO) 2928 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 2929 2930 ieee80211_radiotap_tx(vap, m); 2931 } 2932 2933 memset(tx, 0, sizeof (struct wpi_cmd_data)); 2934 if (type == IEEE80211_FC0_TYPE_MGT) { 2935 uint8_t subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 2936 2937 /* Tell HW to set timestamp in probe responses. */ 2938 if (subtype == IEEE80211_FC0_SUBTYPE_PROBE_RESP) 2939 flags |= WPI_TX_INSERT_TSTAMP; 2940 if (subtype == IEEE80211_FC0_SUBTYPE_ASSOC_REQ || 2941 subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) 2942 tx->timeout = htole16(3); 2943 else 2944 tx->timeout = htole16(2); 2945 } 2946 2947 if (k != NULL && !swcrypt) { 2948 switch (k->wk_cipher->ic_cipher) { 2949 case IEEE80211_CIPHER_AES_CCM: 2950 tx->security = WPI_CIPHER_CCMP; 2951 break; 2952 2953 default: 2954 break; 2955 } 2956 2957 memcpy(tx->key, k->wk_key, k->wk_keylen); 2958 } 2959 2960 tx->len = htole16(totlen); 2961 tx->flags = htole32(flags); 2962 tx->plcp = rate2plcp(rate); 2963 tx->id = WPI_ID_BROADCAST; 2964 tx->lifetime = htole32(WPI_LIFETIME_INFINITE); 2965 tx->rts_ntries = params->ibp_try1; 2966 tx->data_ntries = params->ibp_try0; 2967 2968 tx_data.ni = ni; 2969 tx_data.m = m; 2970 tx_data.size = sizeof(struct wpi_cmd_data); 2971 tx_data.code = WPI_CMD_TX_DATA; 2972 tx_data.ac = ac; 2973 2974 return wpi_cmd2(sc, &tx_data); 2975} 2976 2977static __inline int 2978wpi_tx_ring_is_full(struct wpi_softc *sc, int ac) 2979{ 2980 struct wpi_tx_ring *ring = &sc->txq[ac]; 2981 int retval; 2982 2983 WPI_TXQ_STATE_LOCK(sc); 2984 retval = (ring->queued > WPI_TX_RING_HIMARK); 2985 WPI_TXQ_STATE_UNLOCK(sc); 2986 2987 return retval; 2988} 2989 2990static __inline void 2991wpi_handle_tx_failure(struct ieee80211_node *ni) 2992{ 2993 /* NB: m is reclaimed on tx failure */ 2994 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, 1); 2995 ieee80211_free_node(ni); 2996} 2997 2998static int 2999wpi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3000 const struct ieee80211_bpf_params *params) 3001{ 3002 struct ieee80211com *ic = ni->ni_ic; 3003 struct wpi_softc *sc = ic->ic_softc; 3004 int ac, error = 0; 3005 3006 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 3007 3008 ac = M_WME_GETAC(m); 3009 3010 WPI_TX_LOCK(sc); 3011 3012 if (sc->sc_running == 0 || wpi_tx_ring_is_full(sc, ac)) { 3013 m_freem(m); 3014 error = sc->sc_running ? ENOBUFS : ENETDOWN; 3015 goto unlock; 3016 } 3017 3018 if (params == NULL) { 3019 /* 3020 * Legacy path; interpret frame contents to decide 3021 * precisely how to send the frame. 3022 */ 3023 error = wpi_tx_data(sc, m, ni); 3024 } else { 3025 /* 3026 * Caller supplied explicit parameters to use in 3027 * sending the frame. 3028 */ 3029 error = wpi_tx_data_raw(sc, m, ni, params); 3030 } 3031 3032unlock: WPI_TX_UNLOCK(sc); 3033 3034 if (error != 0) { 3035 wpi_handle_tx_failure(ni); 3036 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__); 3037 3038 return error; 3039 } 3040 3041 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 3042 3043 return 0; 3044} 3045 3046static int 3047wpi_transmit(struct ieee80211com *ic, struct mbuf *m) 3048{ 3049 struct wpi_softc *sc = ic->ic_softc; 3050 struct ieee80211_node *ni; 3051 int ac, error; 3052 3053 WPI_TX_LOCK(sc); 3054 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: called\n", __func__); 3055 3056 /* Check if interface is up & running. */ 3057 if (sc->sc_running == 0) { 3058 error = ENXIO; 3059 goto unlock; 3060 } 3061 3062 /* Check for available space. */ 3063 ac = M_WME_GETAC(m); 3064 if (wpi_tx_ring_is_full(sc, ac)) { 3065 error = ENOBUFS; 3066 goto unlock; 3067 } 3068 3069 error = 0; 3070 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3071 if (wpi_tx_data(sc, m, ni) != 0) { 3072 wpi_handle_tx_failure(ni); 3073 } 3074 3075 DPRINTF(sc, WPI_DEBUG_XMIT, "%s: done\n", __func__); 3076 3077unlock: WPI_TX_UNLOCK(sc); 3078 3079 return (error); 3080} 3081 3082static void 3083wpi_watchdog_rfkill(void *arg) 3084{ 3085 struct wpi_softc *sc = arg; 3086 struct ieee80211com *ic = &sc->sc_ic; 3087 3088 DPRINTF(sc, WPI_DEBUG_WATCHDOG, "RFkill Watchdog: tick\n"); 3089 3090 /* No need to lock firmware memory. */ 3091 if ((wpi_prph_read(sc, WPI_APMG_RFKILL) & 0x1) == 0) { 3092 /* Radio kill switch is still off. */ 3093 callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill, 3094 sc); 3095 } else 3096 ieee80211_runtask(ic, &sc->sc_radioon_task); 3097} 3098 3099static void 3100wpi_scan_timeout(void *arg) 3101{ 3102 struct wpi_softc *sc = arg; 3103 struct ieee80211com *ic = &sc->sc_ic; 3104 3105 ic_printf(ic, "scan timeout\n"); 3106 taskqueue_enqueue(sc->sc_tq, &sc->sc_reinittask); 3107} 3108 3109static void 3110wpi_tx_timeout(void *arg) 3111{ 3112 struct wpi_softc *sc = arg; 3113 struct ieee80211com *ic = &sc->sc_ic; 3114 3115 ic_printf(ic, "device timeout\n"); 3116 taskqueue_enqueue(sc->sc_tq, &sc->sc_reinittask); 3117} 3118 3119static void 3120wpi_parent(struct ieee80211com *ic) 3121{ 3122 struct wpi_softc *sc = ic->ic_softc; 3123 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3124 3125 if (ic->ic_nrunning > 0) { 3126 if (wpi_init(sc) == 0) { 3127 ieee80211_notify_radio(ic, 1); 3128 ieee80211_start_all(ic); 3129 } else { 3130 ieee80211_notify_radio(ic, 0); 3131 ieee80211_stop(vap); 3132 } 3133 } else 3134 wpi_stop(sc); 3135} 3136 3137/* 3138 * Send a command to the firmware. 3139 */ 3140static int 3141wpi_cmd(struct wpi_softc *sc, int code, const void *buf, size_t size, 3142 int async) 3143{ 3144 struct wpi_tx_ring *ring = &sc->txq[WPI_CMD_QUEUE_NUM]; 3145 struct wpi_tx_desc *desc; 3146 struct wpi_tx_data *data; 3147 struct wpi_tx_cmd *cmd; 3148 struct mbuf *m; 3149 bus_addr_t paddr; 3150 int totlen, error; 3151 3152 WPI_TXQ_LOCK(sc); 3153 3154 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 3155 3156 if (sc->sc_running == 0) { 3157 /* wpi_stop() was called */ 3158 if (code == WPI_CMD_SCAN) 3159 error = ENETDOWN; 3160 else 3161 error = 0; 3162 3163 goto fail; 3164 } 3165 3166 if (async == 0) 3167 WPI_LOCK_ASSERT(sc); 3168 3169 DPRINTF(sc, WPI_DEBUG_CMD, "%s: cmd %s size %zu async %d\n", 3170 __func__, wpi_cmd_str(code), size, async); 3171 3172 desc = &ring->desc[ring->cur]; 3173 data = &ring->data[ring->cur]; 3174 totlen = 4 + size; 3175 3176 if (size > sizeof cmd->data) { 3177 /* Command is too large to fit in a descriptor. */ 3178 if (totlen > MCLBYTES) { 3179 error = EINVAL; 3180 goto fail; 3181 } 3182 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUMPAGESIZE); 3183 if (m == NULL) { 3184 error = ENOMEM; 3185 goto fail; 3186 } 3187 cmd = mtod(m, struct wpi_tx_cmd *); 3188 error = bus_dmamap_load(ring->data_dmat, data->map, cmd, 3189 totlen, wpi_dma_map_addr, &paddr, BUS_DMA_NOWAIT); 3190 if (error != 0) { 3191 m_freem(m); 3192 goto fail; 3193 } 3194 data->m = m; 3195 } else { 3196 cmd = &ring->cmd[ring->cur]; 3197 paddr = data->cmd_paddr; 3198 } 3199 3200 cmd->code = code; 3201 cmd->flags = 0; 3202 cmd->qid = ring->qid; 3203 cmd->idx = ring->cur; 3204 memcpy(cmd->data, buf, size); 3205 3206 desc->nsegs = 1 + (WPI_PAD32(size) << 4); 3207 desc->segs[0].addr = htole32(paddr); 3208 desc->segs[0].len = htole32(totlen); 3209 3210 if (size > sizeof cmd->data) { 3211 bus_dmamap_sync(ring->data_dmat, data->map, 3212 BUS_DMASYNC_PREWRITE); 3213 } else { 3214 bus_dmamap_sync(ring->data_dmat, ring->cmd_dma.map, 3215 BUS_DMASYNC_PREWRITE); 3216 } 3217 bus_dmamap_sync(ring->desc_dma.tag, ring->desc_dma.map, 3218 BUS_DMASYNC_PREWRITE); 3219 3220 /* Kick command ring. */ 3221 ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT; 3222 sc->sc_update_tx_ring(sc, ring); 3223 3224 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 3225 3226 WPI_TXQ_UNLOCK(sc); 3227 3228 return async ? 0 : mtx_sleep(cmd, &sc->sc_mtx, PCATCH, "wpicmd", hz); 3229 3230fail: DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__); 3231 3232 WPI_TXQ_UNLOCK(sc); 3233 3234 return error; 3235} 3236 3237/* 3238 * Configure HW multi-rate retries. 3239 */ 3240static int 3241wpi_mrr_setup(struct wpi_softc *sc) 3242{ 3243 struct ieee80211com *ic = &sc->sc_ic; 3244 struct wpi_mrr_setup mrr; 3245 int i, error; 3246 3247 /* CCK rates (not used with 802.11a). */ 3248 for (i = WPI_RIDX_CCK1; i <= WPI_RIDX_CCK11; i++) { 3249 mrr.rates[i].flags = 0; 3250 mrr.rates[i].plcp = wpi_ridx_to_plcp[i]; 3251 /* Fallback to the immediate lower CCK rate (if any.) */ 3252 mrr.rates[i].next = 3253 (i == WPI_RIDX_CCK1) ? WPI_RIDX_CCK1 : i - 1; 3254 /* Try twice at this rate before falling back to "next". */ 3255 mrr.rates[i].ntries = WPI_NTRIES_DEFAULT; 3256 } 3257 /* OFDM rates (not used with 802.11b). */ 3258 for (i = WPI_RIDX_OFDM6; i <= WPI_RIDX_OFDM54; i++) { 3259 mrr.rates[i].flags = 0; 3260 mrr.rates[i].plcp = wpi_ridx_to_plcp[i]; 3261 /* Fallback to the immediate lower rate (if any.) */ 3262 /* We allow fallback from OFDM/6 to CCK/2 in 11b/g mode. */ 3263 mrr.rates[i].next = (i == WPI_RIDX_OFDM6) ? 3264 ((ic->ic_curmode == IEEE80211_MODE_11A) ? 3265 WPI_RIDX_OFDM6 : WPI_RIDX_CCK2) : 3266 i - 1; 3267 /* Try twice at this rate before falling back to "next". */ 3268 mrr.rates[i].ntries = WPI_NTRIES_DEFAULT; 3269 } 3270 /* Setup MRR for control frames. */ 3271 mrr.which = htole32(WPI_MRR_CTL); 3272 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0); 3273 if (error != 0) { 3274 device_printf(sc->sc_dev, 3275 "could not setup MRR for control frames\n"); 3276 return error; 3277 } 3278 /* Setup MRR for data frames. */ 3279 mrr.which = htole32(WPI_MRR_DATA); 3280 error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 0); 3281 if (error != 0) { 3282 device_printf(sc->sc_dev, 3283 "could not setup MRR for data frames\n"); 3284 return error; 3285 } 3286 return 0; 3287} 3288 3289static int 3290wpi_add_node(struct wpi_softc *sc, struct ieee80211_node *ni) 3291{ 3292 struct ieee80211com *ic = ni->ni_ic; 3293 struct wpi_vap *wvp = WPI_VAP(ni->ni_vap); 3294 struct wpi_node *wn = WPI_NODE(ni); 3295 struct wpi_node_info node; 3296 int error; 3297 3298 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 3299 3300 if (wn->id == WPI_ID_UNDEFINED) 3301 return EINVAL; 3302 3303 memset(&node, 0, sizeof node); 3304 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr); 3305 node.id = wn->id; 3306 node.plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ? 3307 wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1]; 3308 node.action = htole32(WPI_ACTION_SET_RATE); 3309 node.antenna = WPI_ANTENNA_BOTH; 3310 3311 DPRINTF(sc, WPI_DEBUG_NODE, "%s: adding node %d (%s)\n", __func__, 3312 wn->id, ether_sprintf(ni->ni_macaddr)); 3313 3314 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1); 3315 if (error != 0) { 3316 device_printf(sc->sc_dev, 3317 "%s: wpi_cmd() call failed with error code %d\n", __func__, 3318 error); 3319 return error; 3320 } 3321 3322 if (wvp->wv_gtk != 0) { 3323 error = wpi_set_global_keys(ni); 3324 if (error != 0) { 3325 device_printf(sc->sc_dev, 3326 "%s: error while setting global keys\n", __func__); 3327 return ENXIO; 3328 } 3329 } 3330 3331 return 0; 3332} 3333 3334/* 3335 * Broadcast node is used to send group-addressed and management frames. 3336 */ 3337static int 3338wpi_add_broadcast_node(struct wpi_softc *sc, int async) 3339{ 3340 struct ieee80211com *ic = &sc->sc_ic; 3341 struct wpi_node_info node; 3342 3343 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 3344 3345 memset(&node, 0, sizeof node); 3346 IEEE80211_ADDR_COPY(node.macaddr, ieee80211broadcastaddr); 3347 node.id = WPI_ID_BROADCAST; 3348 node.plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ? 3349 wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1]; 3350 node.action = htole32(WPI_ACTION_SET_RATE); 3351 node.antenna = WPI_ANTENNA_BOTH; 3352 3353 DPRINTF(sc, WPI_DEBUG_NODE, "%s: adding broadcast node\n", __func__); 3354 3355 return wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, async); 3356} 3357 3358static int 3359wpi_add_sta_node(struct wpi_softc *sc, struct ieee80211_node *ni) 3360{ 3361 struct wpi_node *wn = WPI_NODE(ni); 3362 int error; 3363 3364 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 3365 3366 wn->id = wpi_add_node_entry_sta(sc); 3367 3368 if ((error = wpi_add_node(sc, ni)) != 0) { 3369 wpi_del_node_entry(sc, wn->id); 3370 wn->id = WPI_ID_UNDEFINED; 3371 return error; 3372 } 3373 3374 return 0; 3375} 3376 3377static int 3378wpi_add_ibss_node(struct wpi_softc *sc, struct ieee80211_node *ni) 3379{ 3380 struct wpi_node *wn = WPI_NODE(ni); 3381 int error; 3382 3383 KASSERT(wn->id == WPI_ID_UNDEFINED, 3384 ("the node %d was added before", wn->id)); 3385 3386 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 3387 3388 if ((wn->id = wpi_add_node_entry_adhoc(sc)) == WPI_ID_UNDEFINED) { 3389 device_printf(sc->sc_dev, "%s: h/w table is full\n", __func__); 3390 return ENOMEM; 3391 } 3392 3393 if ((error = wpi_add_node(sc, ni)) != 0) { 3394 wpi_del_node_entry(sc, wn->id); 3395 wn->id = WPI_ID_UNDEFINED; 3396 return error; 3397 } 3398 3399 return 0; 3400} 3401 3402static void 3403wpi_del_node(struct wpi_softc *sc, struct ieee80211_node *ni) 3404{ 3405 struct wpi_node *wn = WPI_NODE(ni); 3406 struct wpi_cmd_del_node node; 3407 int error; 3408 3409 KASSERT(wn->id != WPI_ID_UNDEFINED, ("undefined node id passed")); 3410 3411 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 3412 3413 memset(&node, 0, sizeof node); 3414 IEEE80211_ADDR_COPY(node.macaddr, ni->ni_macaddr); 3415 node.count = 1; 3416 3417 DPRINTF(sc, WPI_DEBUG_NODE, "%s: deleting node %d (%s)\n", __func__, 3418 wn->id, ether_sprintf(ni->ni_macaddr)); 3419 3420 error = wpi_cmd(sc, WPI_CMD_DEL_NODE, &node, sizeof node, 1); 3421 if (error != 0) { 3422 device_printf(sc->sc_dev, 3423 "%s: could not delete node %u, error %d\n", __func__, 3424 wn->id, error); 3425 } 3426} 3427 3428static int 3429wpi_updateedca(struct ieee80211com *ic) 3430{ 3431#define WPI_EXP2(x) ((1 << (x)) - 1) /* CWmin = 2^ECWmin - 1 */ 3432 struct wpi_softc *sc = ic->ic_softc; 3433 struct wpi_edca_params cmd; 3434 int aci, error; 3435 3436 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 3437 3438 memset(&cmd, 0, sizeof cmd); 3439 cmd.flags = htole32(WPI_EDCA_UPDATE); 3440 for (aci = 0; aci < WME_NUM_AC; aci++) { 3441 const struct wmeParams *ac = 3442 &ic->ic_wme.wme_chanParams.cap_wmeParams[aci]; 3443 cmd.ac[aci].aifsn = ac->wmep_aifsn; 3444 cmd.ac[aci].cwmin = htole16(WPI_EXP2(ac->wmep_logcwmin)); 3445 cmd.ac[aci].cwmax = htole16(WPI_EXP2(ac->wmep_logcwmax)); 3446 cmd.ac[aci].txoplimit = 3447 htole16(IEEE80211_TXOP_TO_US(ac->wmep_txopLimit)); 3448 3449 DPRINTF(sc, WPI_DEBUG_EDCA, 3450 "setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d " 3451 "txoplimit=%d\n", aci, cmd.ac[aci].aifsn, 3452 cmd.ac[aci].cwmin, cmd.ac[aci].cwmax, 3453 cmd.ac[aci].txoplimit); 3454 } 3455 error = wpi_cmd(sc, WPI_CMD_EDCA_PARAMS, &cmd, sizeof cmd, 1); 3456 3457 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 3458 3459 return error; 3460#undef WPI_EXP2 3461} 3462 3463static void 3464wpi_set_promisc(struct wpi_softc *sc) 3465{ 3466 struct ieee80211com *ic = &sc->sc_ic; 3467 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3468 uint32_t promisc_filter; 3469 3470 promisc_filter = WPI_FILTER_CTL; 3471 if (vap != NULL && vap->iv_opmode != IEEE80211_M_HOSTAP) 3472 promisc_filter |= WPI_FILTER_PROMISC; 3473 3474 if (ic->ic_promisc > 0) 3475 sc->rxon.filter |= htole32(promisc_filter); 3476 else 3477 sc->rxon.filter &= ~htole32(promisc_filter); 3478} 3479 3480static void 3481wpi_update_promisc(struct ieee80211com *ic) 3482{ 3483 struct wpi_softc *sc = ic->ic_softc; 3484 3485 WPI_RXON_LOCK(sc); 3486 wpi_set_promisc(sc); 3487 3488 if (wpi_send_rxon(sc, 1, 1) != 0) { 3489 device_printf(sc->sc_dev, "%s: could not send RXON\n", 3490 __func__); 3491 } 3492 WPI_RXON_UNLOCK(sc); 3493} 3494 3495static void 3496wpi_update_mcast(struct ieee80211com *ic) 3497{ 3498 /* Ignore */ 3499} 3500 3501static void 3502wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on) 3503{ 3504 struct wpi_cmd_led led; 3505 3506 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 3507 3508 led.which = which; 3509 led.unit = htole32(100000); /* on/off in unit of 100ms */ 3510 led.off = off; 3511 led.on = on; 3512 (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1); 3513} 3514 3515static int 3516wpi_set_timing(struct wpi_softc *sc, struct ieee80211_node *ni) 3517{ 3518 struct wpi_cmd_timing cmd; 3519 uint64_t val, mod; 3520 3521 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 3522 3523 memset(&cmd, 0, sizeof cmd); 3524 memcpy(&cmd.tstamp, ni->ni_tstamp.data, sizeof (uint64_t)); 3525 cmd.bintval = htole16(ni->ni_intval); 3526 cmd.lintval = htole16(10); 3527 3528 /* Compute remaining time until next beacon. */ 3529 val = (uint64_t)ni->ni_intval * IEEE80211_DUR_TU; 3530 mod = le64toh(cmd.tstamp) % val; 3531 cmd.binitval = htole32((uint32_t)(val - mod)); 3532 3533 DPRINTF(sc, WPI_DEBUG_RESET, "timing bintval=%u tstamp=%ju, init=%u\n", 3534 ni->ni_intval, le64toh(cmd.tstamp), (uint32_t)(val - mod)); 3535 3536 return wpi_cmd(sc, WPI_CMD_TIMING, &cmd, sizeof cmd, 1); 3537} 3538 3539/* 3540 * This function is called periodically (every 60 seconds) to adjust output 3541 * power to temperature changes. 3542 */ 3543static void 3544wpi_power_calibration(struct wpi_softc *sc) 3545{ 3546 int temp; 3547 3548 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 3549 3550 /* Update sensor data. */ 3551 temp = (int)WPI_READ(sc, WPI_UCODE_GP2); 3552 DPRINTF(sc, WPI_DEBUG_TEMP, "Temp in calibration is: %d\n", temp); 3553 3554 /* Sanity-check read value. */ 3555 if (temp < -260 || temp > 25) { 3556 /* This can't be correct, ignore. */ 3557 DPRINTF(sc, WPI_DEBUG_TEMP, 3558 "out-of-range temperature reported: %d\n", temp); 3559 return; 3560 } 3561 3562 DPRINTF(sc, WPI_DEBUG_TEMP, "temperature %d->%d\n", sc->temp, temp); 3563 3564 /* Adjust Tx power if need be. */ 3565 if (abs(temp - sc->temp) <= 6) 3566 return; 3567 3568 sc->temp = temp; 3569 3570 if (wpi_set_txpower(sc, 1) != 0) { 3571 /* just warn, too bad for the automatic calibration... */ 3572 device_printf(sc->sc_dev,"could not adjust Tx power\n"); 3573 } 3574} 3575 3576/* 3577 * Set TX power for current channel. 3578 */ 3579static int 3580wpi_set_txpower(struct wpi_softc *sc, int async) 3581{ 3582 struct wpi_power_group *group; 3583 struct wpi_cmd_txpower cmd; 3584 uint8_t chan; 3585 int idx, is_chan_5ghz, i; 3586 3587 /* Retrieve current channel from last RXON. */ 3588 chan = sc->rxon.chan; 3589 is_chan_5ghz = (sc->rxon.flags & htole32(WPI_RXON_24GHZ)) == 0; 3590 3591 /* Find the TX power group to which this channel belongs. */ 3592 if (is_chan_5ghz) { 3593 for (group = &sc->groups[1]; group < &sc->groups[4]; group++) 3594 if (chan <= group->chan) 3595 break; 3596 } else 3597 group = &sc->groups[0]; 3598 3599 memset(&cmd, 0, sizeof cmd); 3600 cmd.band = is_chan_5ghz ? WPI_BAND_5GHZ : WPI_BAND_2GHZ; 3601 cmd.chan = htole16(chan); 3602 3603 /* Set TX power for all OFDM and CCK rates. */ 3604 for (i = 0; i <= WPI_RIDX_MAX ; i++) { 3605 /* Retrieve TX power for this channel/rate. */ 3606 idx = wpi_get_power_index(sc, group, chan, is_chan_5ghz, i); 3607 3608 cmd.rates[i].plcp = wpi_ridx_to_plcp[i]; 3609 3610 if (is_chan_5ghz) { 3611 cmd.rates[i].rf_gain = wpi_rf_gain_5ghz[idx]; 3612 cmd.rates[i].dsp_gain = wpi_dsp_gain_5ghz[idx]; 3613 } else { 3614 cmd.rates[i].rf_gain = wpi_rf_gain_2ghz[idx]; 3615 cmd.rates[i].dsp_gain = wpi_dsp_gain_2ghz[idx]; 3616 } 3617 DPRINTF(sc, WPI_DEBUG_TEMP, 3618 "chan %d/ridx %d: power index %d\n", chan, i, idx); 3619 } 3620 3621 return wpi_cmd(sc, WPI_CMD_TXPOWER, &cmd, sizeof cmd, async); 3622} 3623 3624/* 3625 * Determine Tx power index for a given channel/rate combination. 3626 * This takes into account the regulatory information from EEPROM and the 3627 * current temperature. 3628 */ 3629static int 3630wpi_get_power_index(struct wpi_softc *sc, struct wpi_power_group *group, 3631 uint8_t chan, int is_chan_5ghz, int ridx) 3632{ 3633/* Fixed-point arithmetic division using a n-bit fractional part. */ 3634#define fdivround(a, b, n) \ 3635 ((((1 << n) * (a)) / (b) + (1 << n) / 2) / (1 << n)) 3636 3637/* Linear interpolation. */ 3638#define interpolate(x, x1, y1, x2, y2, n) \ 3639 ((y1) + fdivround(((x) - (x1)) * ((y2) - (y1)), (x2) - (x1), n)) 3640 3641 struct wpi_power_sample *sample; 3642 int pwr, idx; 3643 3644 /* Default TX power is group maximum TX power minus 3dB. */ 3645 pwr = group->maxpwr / 2; 3646 3647 /* Decrease TX power for highest OFDM rates to reduce distortion. */ 3648 switch (ridx) { 3649 case WPI_RIDX_OFDM36: 3650 pwr -= is_chan_5ghz ? 5 : 0; 3651 break; 3652 case WPI_RIDX_OFDM48: 3653 pwr -= is_chan_5ghz ? 10 : 7; 3654 break; 3655 case WPI_RIDX_OFDM54: 3656 pwr -= is_chan_5ghz ? 12 : 9; 3657 break; 3658 } 3659 3660 /* Never exceed the channel maximum allowed TX power. */ 3661 pwr = min(pwr, sc->maxpwr[chan]); 3662 3663 /* Retrieve TX power index into gain tables from samples. */ 3664 for (sample = group->samples; sample < &group->samples[3]; sample++) 3665 if (pwr > sample[1].power) 3666 break; 3667 /* Fixed-point linear interpolation using a 19-bit fractional part. */ 3668 idx = interpolate(pwr, sample[0].power, sample[0].index, 3669 sample[1].power, sample[1].index, 19); 3670 3671 /*- 3672 * Adjust power index based on current temperature: 3673 * - if cooler than factory-calibrated: decrease output power 3674 * - if warmer than factory-calibrated: increase output power 3675 */ 3676 idx -= (sc->temp - group->temp) * 11 / 100; 3677 3678 /* Decrease TX power for CCK rates (-5dB). */ 3679 if (ridx >= WPI_RIDX_CCK1) 3680 idx += 10; 3681 3682 /* Make sure idx stays in a valid range. */ 3683 if (idx < 0) 3684 return 0; 3685 if (idx > WPI_MAX_PWR_INDEX) 3686 return WPI_MAX_PWR_INDEX; 3687 return idx; 3688 3689#undef interpolate 3690#undef fdivround 3691} 3692 3693/* 3694 * Set STA mode power saving level (between 0 and 5). 3695 * Level 0 is CAM (Continuously Aware Mode), 5 is for maximum power saving. 3696 */ 3697static int 3698wpi_set_pslevel(struct wpi_softc *sc, uint8_t dtim, int level, int async) 3699{ 3700 struct wpi_pmgt_cmd cmd; 3701 const struct wpi_pmgt *pmgt; 3702 uint32_t max, skip_dtim; 3703 uint32_t reg; 3704 int i; 3705 3706 DPRINTF(sc, WPI_DEBUG_PWRSAVE, 3707 "%s: dtim=%d, level=%d, async=%d\n", 3708 __func__, dtim, level, async); 3709 3710 /* Select which PS parameters to use. */ 3711 if (dtim <= 10) 3712 pmgt = &wpi_pmgt[0][level]; 3713 else 3714 pmgt = &wpi_pmgt[1][level]; 3715 3716 memset(&cmd, 0, sizeof cmd); 3717 WPI_TXQ_LOCK(sc); 3718 if (level != 0) { /* not CAM */ 3719 cmd.flags |= htole16(WPI_PS_ALLOW_SLEEP); 3720 sc->sc_flags |= WPI_PS_PATH; 3721 } else 3722 sc->sc_flags &= ~WPI_PS_PATH; 3723 WPI_TXQ_UNLOCK(sc); 3724 /* Retrieve PCIe Active State Power Management (ASPM). */ 3725 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1); 3726 if (!(reg & 0x1)) /* L0s Entry disabled. */ 3727 cmd.flags |= htole16(WPI_PS_PCI_PMGT); 3728 3729 cmd.rxtimeout = htole32(pmgt->rxtimeout * IEEE80211_DUR_TU); 3730 cmd.txtimeout = htole32(pmgt->txtimeout * IEEE80211_DUR_TU); 3731 3732 if (dtim == 0) { 3733 dtim = 1; 3734 skip_dtim = 0; 3735 } else 3736 skip_dtim = pmgt->skip_dtim; 3737 3738 if (skip_dtim != 0) { 3739 cmd.flags |= htole16(WPI_PS_SLEEP_OVER_DTIM); 3740 max = pmgt->intval[4]; 3741 if (max == (uint32_t)-1) 3742 max = dtim * (skip_dtim + 1); 3743 else if (max > dtim) 3744 max = (max / dtim) * dtim; 3745 } else 3746 max = dtim; 3747 3748 for (i = 0; i < 5; i++) 3749 cmd.intval[i] = htole32(MIN(max, pmgt->intval[i])); 3750 3751 return wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &cmd, sizeof cmd, async); 3752} 3753 3754static int 3755wpi_send_btcoex(struct wpi_softc *sc) 3756{ 3757 struct wpi_bluetooth cmd; 3758 3759 memset(&cmd, 0, sizeof cmd); 3760 cmd.flags = WPI_BT_COEX_MODE_4WIRE; 3761 cmd.lead_time = WPI_BT_LEAD_TIME_DEF; 3762 cmd.max_kill = WPI_BT_MAX_KILL_DEF; 3763 DPRINTF(sc, WPI_DEBUG_RESET, "%s: configuring bluetooth coexistence\n", 3764 __func__); 3765 return wpi_cmd(sc, WPI_CMD_BT_COEX, &cmd, sizeof(cmd), 0); 3766} 3767 3768static int 3769wpi_send_rxon(struct wpi_softc *sc, int assoc, int async) 3770{ 3771 int error; 3772 3773 if (async) 3774 WPI_RXON_LOCK_ASSERT(sc); 3775 3776 if (assoc && wpi_check_bss_filter(sc) != 0) { 3777 struct wpi_assoc rxon_assoc; 3778 3779 rxon_assoc.flags = sc->rxon.flags; 3780 rxon_assoc.filter = sc->rxon.filter; 3781 rxon_assoc.ofdm_mask = sc->rxon.ofdm_mask; 3782 rxon_assoc.cck_mask = sc->rxon.cck_mask; 3783 rxon_assoc.reserved = 0; 3784 3785 error = wpi_cmd(sc, WPI_CMD_RXON_ASSOC, &rxon_assoc, 3786 sizeof (struct wpi_assoc), async); 3787 if (error != 0) { 3788 device_printf(sc->sc_dev, 3789 "RXON_ASSOC command failed, error %d\n", error); 3790 return error; 3791 } 3792 } else { 3793 if (async) { 3794 WPI_NT_LOCK(sc); 3795 error = wpi_cmd(sc, WPI_CMD_RXON, &sc->rxon, 3796 sizeof (struct wpi_rxon), async); 3797 if (error == 0) 3798 wpi_clear_node_table(sc); 3799 WPI_NT_UNLOCK(sc); 3800 } else { 3801 error = wpi_cmd(sc, WPI_CMD_RXON, &sc->rxon, 3802 sizeof (struct wpi_rxon), async); 3803 if (error == 0) 3804 wpi_clear_node_table(sc); 3805 } 3806 3807 if (error != 0) { 3808 device_printf(sc->sc_dev, 3809 "RXON command failed, error %d\n", error); 3810 return error; 3811 } 3812 3813 /* Add broadcast node. */ 3814 error = wpi_add_broadcast_node(sc, async); 3815 if (error != 0) { 3816 device_printf(sc->sc_dev, 3817 "could not add broadcast node, error %d\n", error); 3818 return error; 3819 } 3820 } 3821 3822 /* Configuration has changed, set Tx power accordingly. */ 3823 if ((error = wpi_set_txpower(sc, async)) != 0) { 3824 device_printf(sc->sc_dev, 3825 "%s: could not set TX power, error %d\n", __func__, error); 3826 return error; 3827 } 3828 3829 return 0; 3830} 3831 3832/** 3833 * Configure the card to listen to a particular channel, this transisions the 3834 * card in to being able to receive frames from remote devices. 3835 */ 3836static int 3837wpi_config(struct wpi_softc *sc) 3838{ 3839 struct ieee80211com *ic = &sc->sc_ic; 3840 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3841 struct ieee80211_channel *c = ic->ic_curchan; 3842 int error; 3843 3844 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 3845 3846 /* Set power saving level to CAM during initialization. */ 3847 if ((error = wpi_set_pslevel(sc, 0, 0, 0)) != 0) { 3848 device_printf(sc->sc_dev, 3849 "%s: could not set power saving level\n", __func__); 3850 return error; 3851 } 3852 3853 /* Configure bluetooth coexistence. */ 3854 if ((error = wpi_send_btcoex(sc)) != 0) { 3855 device_printf(sc->sc_dev, 3856 "could not configure bluetooth coexistence\n"); 3857 return error; 3858 } 3859 3860 /* Configure adapter. */ 3861 memset(&sc->rxon, 0, sizeof (struct wpi_rxon)); 3862 IEEE80211_ADDR_COPY(sc->rxon.myaddr, vap->iv_myaddr); 3863 3864 /* Set default channel. */ 3865 sc->rxon.chan = ieee80211_chan2ieee(ic, c); 3866 sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF); 3867 if (IEEE80211_IS_CHAN_2GHZ(c)) 3868 sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ); 3869 3870 sc->rxon.filter = WPI_FILTER_MULTICAST; 3871 switch (ic->ic_opmode) { 3872 case IEEE80211_M_STA: 3873 sc->rxon.mode = WPI_MODE_STA; 3874 break; 3875 case IEEE80211_M_IBSS: 3876 sc->rxon.mode = WPI_MODE_IBSS; 3877 sc->rxon.filter |= WPI_FILTER_BEACON; 3878 break; 3879 case IEEE80211_M_HOSTAP: 3880 /* XXX workaround for beaconing */ 3881 sc->rxon.mode = WPI_MODE_IBSS; 3882 sc->rxon.filter |= WPI_FILTER_ASSOC | WPI_FILTER_PROMISC; 3883 break; 3884 case IEEE80211_M_AHDEMO: 3885 sc->rxon.mode = WPI_MODE_HOSTAP; 3886 break; 3887 case IEEE80211_M_MONITOR: 3888 sc->rxon.mode = WPI_MODE_MONITOR; 3889 break; 3890 default: 3891 device_printf(sc->sc_dev, "unknown opmode %d\n", 3892 ic->ic_opmode); 3893 return EINVAL; 3894 } 3895 sc->rxon.filter = htole32(sc->rxon.filter); 3896 wpi_set_promisc(sc); 3897 sc->rxon.cck_mask = 0x0f; /* not yet negotiated */ 3898 sc->rxon.ofdm_mask = 0xff; /* not yet negotiated */ 3899 3900 if ((error = wpi_send_rxon(sc, 0, 0)) != 0) { 3901 device_printf(sc->sc_dev, "%s: could not send RXON\n", 3902 __func__); 3903 return error; 3904 } 3905 3906 /* Setup rate scalling. */ 3907 if ((error = wpi_mrr_setup(sc)) != 0) { 3908 device_printf(sc->sc_dev, "could not setup MRR, error %d\n", 3909 error); 3910 return error; 3911 } 3912 3913 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 3914 3915 return 0; 3916} 3917 3918static uint16_t 3919wpi_get_active_dwell_time(struct wpi_softc *sc, 3920 struct ieee80211_channel *c, uint8_t n_probes) 3921{ 3922 /* No channel? Default to 2GHz settings. */ 3923 if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c)) { 3924 return (WPI_ACTIVE_DWELL_TIME_2GHZ + 3925 WPI_ACTIVE_DWELL_FACTOR_2GHZ * (n_probes + 1)); 3926 } 3927 3928 /* 5GHz dwell time. */ 3929 return (WPI_ACTIVE_DWELL_TIME_5GHZ + 3930 WPI_ACTIVE_DWELL_FACTOR_5GHZ * (n_probes + 1)); 3931} 3932 3933/* 3934 * Limit the total dwell time. 3935 * 3936 * Returns the dwell time in milliseconds. 3937 */ 3938static uint16_t 3939wpi_limit_dwell(struct wpi_softc *sc, uint16_t dwell_time) 3940{ 3941 struct ieee80211com *ic = &sc->sc_ic; 3942 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 3943 int bintval = 0; 3944 3945 /* bintval is in TU (1.024mS) */ 3946 if (vap != NULL) 3947 bintval = vap->iv_bss->ni_intval; 3948 3949 /* 3950 * If it's non-zero, we should calculate the minimum of 3951 * it and the DWELL_BASE. 3952 * 3953 * XXX Yes, the math should take into account that bintval 3954 * is 1.024mS, not 1mS.. 3955 */ 3956 if (bintval > 0) { 3957 DPRINTF(sc, WPI_DEBUG_SCAN, "%s: bintval=%d\n", __func__, 3958 bintval); 3959 return (MIN(dwell_time, bintval - WPI_CHANNEL_TUNE_TIME * 2)); 3960 } 3961 3962 /* No association context? Default. */ 3963 return dwell_time; 3964} 3965 3966static uint16_t 3967wpi_get_passive_dwell_time(struct wpi_softc *sc, struct ieee80211_channel *c) 3968{ 3969 uint16_t passive; 3970 3971 if (c == NULL || IEEE80211_IS_CHAN_2GHZ(c)) 3972 passive = WPI_PASSIVE_DWELL_BASE + WPI_PASSIVE_DWELL_TIME_2GHZ; 3973 else 3974 passive = WPI_PASSIVE_DWELL_BASE + WPI_PASSIVE_DWELL_TIME_5GHZ; 3975 3976 /* Clamp to the beacon interval if we're associated. */ 3977 return (wpi_limit_dwell(sc, passive)); 3978} 3979 3980static uint32_t 3981wpi_get_scan_pause_time(uint32_t time, uint16_t bintval) 3982{ 3983 uint32_t mod = (time % bintval) * IEEE80211_DUR_TU; 3984 uint32_t nbeacons = time / bintval; 3985 3986 if (mod > WPI_PAUSE_MAX_TIME) 3987 mod = WPI_PAUSE_MAX_TIME; 3988 3989 return WPI_PAUSE_SCAN(nbeacons, mod); 3990} 3991 3992/* 3993 * Send a scan request to the firmware. 3994 */ 3995static int 3996wpi_scan(struct wpi_softc *sc, struct ieee80211_channel *c) 3997{ 3998 struct ieee80211com *ic = &sc->sc_ic; 3999 struct ieee80211_scan_state *ss = ic->ic_scan; 4000 struct ieee80211vap *vap = ss->ss_vap; 4001 struct wpi_scan_hdr *hdr; 4002 struct wpi_cmd_data *tx; 4003 struct wpi_scan_essid *essids; 4004 struct wpi_scan_chan *chan; 4005 struct ieee80211_frame *wh; 4006 struct ieee80211_rateset *rs; 4007 uint16_t dwell_active, dwell_passive; 4008 uint8_t *buf, *frm; 4009 int bgscan, bintval, buflen, error, i, nssid; 4010 4011 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 4012 4013 /* 4014 * We are absolutely not allowed to send a scan command when another 4015 * scan command is pending. 4016 */ 4017 if (callout_pending(&sc->scan_timeout)) { 4018 device_printf(sc->sc_dev, "%s: called whilst scanning!\n", 4019 __func__); 4020 error = EAGAIN; 4021 goto fail; 4022 } 4023 4024 bgscan = wpi_check_bss_filter(sc); 4025 bintval = vap->iv_bss->ni_intval; 4026 if (bgscan != 0 && 4027 bintval < WPI_QUIET_TIME_DEFAULT + WPI_CHANNEL_TUNE_TIME * 2) { 4028 error = EOPNOTSUPP; 4029 goto fail; 4030 } 4031 4032 buf = malloc(WPI_SCAN_MAXSZ, M_DEVBUF, M_NOWAIT | M_ZERO); 4033 if (buf == NULL) { 4034 device_printf(sc->sc_dev, 4035 "%s: could not allocate buffer for scan command\n", 4036 __func__); 4037 error = ENOMEM; 4038 goto fail; 4039 } 4040 hdr = (struct wpi_scan_hdr *)buf; 4041 4042 /* 4043 * Move to the next channel if no packets are received within 10 msecs 4044 * after sending the probe request. 4045 */ 4046 hdr->quiet_time = htole16(WPI_QUIET_TIME_DEFAULT); 4047 hdr->quiet_threshold = htole16(1); 4048 4049 if (bgscan != 0) { 4050 /* 4051 * Max needs to be greater than active and passive and quiet! 4052 * It's also in microseconds! 4053 */ 4054 hdr->max_svc = htole32(250 * IEEE80211_DUR_TU); 4055 hdr->pause_svc = htole32(wpi_get_scan_pause_time(100, 4056 bintval)); 4057 } 4058 4059 hdr->filter = htole32(WPI_FILTER_MULTICAST | WPI_FILTER_BEACON); 4060 4061 tx = (struct wpi_cmd_data *)(hdr + 1); 4062 tx->flags = htole32(WPI_TX_AUTO_SEQ); 4063 tx->id = WPI_ID_BROADCAST; 4064 tx->lifetime = htole32(WPI_LIFETIME_INFINITE); 4065 4066 if (IEEE80211_IS_CHAN_5GHZ(c)) { 4067 /* Send probe requests at 6Mbps. */ 4068 tx->plcp = wpi_ridx_to_plcp[WPI_RIDX_OFDM6]; 4069 rs = &ic->ic_sup_rates[IEEE80211_MODE_11A]; 4070 } else { 4071 hdr->flags = htole32(WPI_RXON_24GHZ | WPI_RXON_AUTO); 4072 /* Send probe requests at 1Mbps. */ 4073 tx->plcp = wpi_ridx_to_plcp[WPI_RIDX_CCK1]; 4074 rs = &ic->ic_sup_rates[IEEE80211_MODE_11G]; 4075 } 4076 4077 essids = (struct wpi_scan_essid *)(tx + 1); 4078 nssid = MIN(ss->ss_nssid, WPI_SCAN_MAX_ESSIDS); 4079 for (i = 0; i < nssid; i++) { 4080 essids[i].id = IEEE80211_ELEMID_SSID; 4081 essids[i].len = MIN(ss->ss_ssid[i].len, IEEE80211_NWID_LEN); 4082 memcpy(essids[i].data, ss->ss_ssid[i].ssid, essids[i].len); 4083#ifdef WPI_DEBUG 4084 if (sc->sc_debug & WPI_DEBUG_SCAN) { 4085 printf("Scanning Essid: "); 4086 ieee80211_print_essid(essids[i].data, essids[i].len); 4087 printf("\n"); 4088 } 4089#endif 4090 } 4091 4092 /* 4093 * Build a probe request frame. Most of the following code is a 4094 * copy & paste of what is done in net80211. 4095 */ 4096 wh = (struct ieee80211_frame *)(essids + WPI_SCAN_MAX_ESSIDS); 4097 wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 4098 IEEE80211_FC0_SUBTYPE_PROBE_REQ; 4099 wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 4100 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4101 IEEE80211_ADDR_COPY(wh->i_addr2, vap->iv_myaddr); 4102 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4103 4104 frm = (uint8_t *)(wh + 1); 4105 frm = ieee80211_add_ssid(frm, NULL, 0); 4106 frm = ieee80211_add_rates(frm, rs); 4107 if (rs->rs_nrates > IEEE80211_RATE_SIZE) 4108 frm = ieee80211_add_xrates(frm, rs); 4109 4110 /* Set length of probe request. */ 4111 tx->len = htole16(frm - (uint8_t *)wh); 4112 4113 /* 4114 * Construct information about the channel that we 4115 * want to scan. The firmware expects this to be directly 4116 * after the scan probe request 4117 */ 4118 chan = (struct wpi_scan_chan *)frm; 4119 chan->chan = htole16(ieee80211_chan2ieee(ic, c)); 4120 chan->flags = 0; 4121 if (nssid) { 4122 hdr->crc_threshold = WPI_SCAN_CRC_TH_DEFAULT; 4123 chan->flags |= WPI_CHAN_NPBREQS(nssid); 4124 } else 4125 hdr->crc_threshold = WPI_SCAN_CRC_TH_NEVER; 4126 4127 if (!IEEE80211_IS_CHAN_PASSIVE(c)) 4128 chan->flags |= WPI_CHAN_ACTIVE; 4129 4130 /* 4131 * Calculate the active/passive dwell times. 4132 */ 4133 dwell_active = wpi_get_active_dwell_time(sc, c, nssid); 4134 dwell_passive = wpi_get_passive_dwell_time(sc, c); 4135 4136 /* Make sure they're valid. */ 4137 if (dwell_active > dwell_passive) 4138 dwell_active = dwell_passive; 4139 4140 chan->active = htole16(dwell_active); 4141 chan->passive = htole16(dwell_passive); 4142 4143 chan->dsp_gain = 0x6e; /* Default level */ 4144 4145 if (IEEE80211_IS_CHAN_5GHZ(c)) 4146 chan->rf_gain = 0x3b; 4147 else 4148 chan->rf_gain = 0x28; 4149 4150 DPRINTF(sc, WPI_DEBUG_SCAN, "Scanning %u Passive: %d\n", 4151 chan->chan, IEEE80211_IS_CHAN_PASSIVE(c)); 4152 4153 hdr->nchan++; 4154 4155 if (hdr->nchan == 1 && sc->rxon.chan == chan->chan) { 4156 /* XXX Force probe request transmission. */ 4157 memcpy(chan + 1, chan, sizeof (struct wpi_scan_chan)); 4158 4159 chan++; 4160 4161 /* Reduce unnecessary delay. */ 4162 chan->flags = 0; 4163 chan->passive = chan->active = hdr->quiet_time; 4164 4165 hdr->nchan++; 4166 } 4167 4168 chan++; 4169 4170 buflen = (uint8_t *)chan - buf; 4171 hdr->len = htole16(buflen); 4172 4173 DPRINTF(sc, WPI_DEBUG_CMD, "sending scan command nchan=%d\n", 4174 hdr->nchan); 4175 error = wpi_cmd(sc, WPI_CMD_SCAN, buf, buflen, 1); 4176 free(buf, M_DEVBUF); 4177 4178 if (error != 0) 4179 goto fail; 4180 4181 callout_reset(&sc->scan_timeout, 5*hz, wpi_scan_timeout, sc); 4182 4183 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 4184 4185 return 0; 4186 4187fail: DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__); 4188 4189 return error; 4190} 4191 4192static int 4193wpi_auth(struct wpi_softc *sc, struct ieee80211vap *vap) 4194{ 4195 struct ieee80211com *ic = vap->iv_ic; 4196 struct ieee80211_node *ni = vap->iv_bss; 4197 struct ieee80211_channel *c = ni->ni_chan; 4198 int error; 4199 4200 WPI_RXON_LOCK(sc); 4201 4202 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 4203 4204 /* Update adapter configuration. */ 4205 sc->rxon.associd = 0; 4206 sc->rxon.filter &= ~htole32(WPI_FILTER_BSS); 4207 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid); 4208 sc->rxon.chan = ieee80211_chan2ieee(ic, c); 4209 sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF); 4210 if (IEEE80211_IS_CHAN_2GHZ(c)) 4211 sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ); 4212 if (ic->ic_flags & IEEE80211_F_SHSLOT) 4213 sc->rxon.flags |= htole32(WPI_RXON_SHSLOT); 4214 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 4215 sc->rxon.flags |= htole32(WPI_RXON_SHPREAMBLE); 4216 if (IEEE80211_IS_CHAN_A(c)) { 4217 sc->rxon.cck_mask = 0; 4218 sc->rxon.ofdm_mask = 0x15; 4219 } else if (IEEE80211_IS_CHAN_B(c)) { 4220 sc->rxon.cck_mask = 0x03; 4221 sc->rxon.ofdm_mask = 0; 4222 } else { 4223 /* Assume 802.11b/g. */ 4224 sc->rxon.cck_mask = 0x0f; 4225 sc->rxon.ofdm_mask = 0x15; 4226 } 4227 4228 DPRINTF(sc, WPI_DEBUG_STATE, "rxon chan %d flags %x cck %x ofdm %x\n", 4229 sc->rxon.chan, sc->rxon.flags, sc->rxon.cck_mask, 4230 sc->rxon.ofdm_mask); 4231 4232 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) { 4233 device_printf(sc->sc_dev, "%s: could not send RXON\n", 4234 __func__); 4235 } 4236 4237 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 4238 4239 WPI_RXON_UNLOCK(sc); 4240 4241 return error; 4242} 4243 4244static int 4245wpi_config_beacon(struct wpi_vap *wvp) 4246{ 4247 struct ieee80211vap *vap = &wvp->wv_vap; 4248 struct ieee80211com *ic = vap->iv_ic; 4249 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off; 4250 struct wpi_buf *bcn = &wvp->wv_bcbuf; 4251 struct wpi_softc *sc = ic->ic_softc; 4252 struct wpi_cmd_beacon *cmd = (struct wpi_cmd_beacon *)&bcn->data; 4253 struct ieee80211_tim_ie *tie; 4254 struct mbuf *m; 4255 uint8_t *ptr; 4256 int error; 4257 4258 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 4259 4260 WPI_VAP_LOCK_ASSERT(wvp); 4261 4262 cmd->len = htole16(bcn->m->m_pkthdr.len); 4263 cmd->plcp = (ic->ic_curmode == IEEE80211_MODE_11A) ? 4264 wpi_ridx_to_plcp[WPI_RIDX_OFDM6] : wpi_ridx_to_plcp[WPI_RIDX_CCK1]; 4265 4266 /* XXX seems to be unused */ 4267 if (*(bo->bo_tim) == IEEE80211_ELEMID_TIM) { 4268 tie = (struct ieee80211_tim_ie *) bo->bo_tim; 4269 ptr = mtod(bcn->m, uint8_t *); 4270 4271 cmd->tim = htole16(bo->bo_tim - ptr); 4272 cmd->timsz = tie->tim_len; 4273 } 4274 4275 /* Necessary for recursion in ieee80211_beacon_update(). */ 4276 m = bcn->m; 4277 bcn->m = m_dup(m, M_NOWAIT); 4278 if (bcn->m == NULL) { 4279 device_printf(sc->sc_dev, 4280 "%s: could not copy beacon frame\n", __func__); 4281 error = ENOMEM; 4282 goto end; 4283 } 4284 4285 if ((error = wpi_cmd2(sc, bcn)) != 0) { 4286 device_printf(sc->sc_dev, 4287 "%s: could not update beacon frame, error %d", __func__, 4288 error); 4289 } 4290 4291 /* Restore mbuf. */ 4292end: bcn->m = m; 4293 4294 return error; 4295} 4296 4297static int 4298wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni) 4299{ 4300 struct ieee80211vap *vap = ni->ni_vap; 4301 struct wpi_vap *wvp = WPI_VAP(vap); 4302 struct wpi_buf *bcn = &wvp->wv_bcbuf; 4303 struct mbuf *m; 4304 int error; 4305 4306 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 4307 4308 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 4309 return EINVAL; 4310 4311 m = ieee80211_beacon_alloc(ni); 4312 if (m == NULL) { 4313 device_printf(sc->sc_dev, 4314 "%s: could not allocate beacon frame\n", __func__); 4315 return ENOMEM; 4316 } 4317 4318 WPI_VAP_LOCK(wvp); 4319 if (bcn->m != NULL) 4320 m_freem(bcn->m); 4321 4322 bcn->m = m; 4323 4324 error = wpi_config_beacon(wvp); 4325 WPI_VAP_UNLOCK(wvp); 4326 4327 return error; 4328} 4329 4330static void 4331wpi_update_beacon(struct ieee80211vap *vap, int item) 4332{ 4333 struct wpi_softc *sc = vap->iv_ic->ic_softc; 4334 struct wpi_vap *wvp = WPI_VAP(vap); 4335 struct wpi_buf *bcn = &wvp->wv_bcbuf; 4336 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off; 4337 struct ieee80211_node *ni = vap->iv_bss; 4338 int mcast = 0; 4339 4340 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 4341 4342 WPI_VAP_LOCK(wvp); 4343 if (bcn->m == NULL) { 4344 bcn->m = ieee80211_beacon_alloc(ni); 4345 if (bcn->m == NULL) { 4346 device_printf(sc->sc_dev, 4347 "%s: could not allocate beacon frame\n", __func__); 4348 4349 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, 4350 __func__); 4351 4352 WPI_VAP_UNLOCK(wvp); 4353 return; 4354 } 4355 } 4356 WPI_VAP_UNLOCK(wvp); 4357 4358 if (item == IEEE80211_BEACON_TIM) 4359 mcast = 1; /* TODO */ 4360 4361 setbit(bo->bo_flags, item); 4362 ieee80211_beacon_update(ni, bcn->m, mcast); 4363 4364 WPI_VAP_LOCK(wvp); 4365 wpi_config_beacon(wvp); 4366 WPI_VAP_UNLOCK(wvp); 4367 4368 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 4369} 4370 4371static void 4372wpi_newassoc(struct ieee80211_node *ni, int isnew) 4373{ 4374 struct ieee80211vap *vap = ni->ni_vap; 4375 struct wpi_softc *sc = ni->ni_ic->ic_softc; 4376 struct wpi_node *wn = WPI_NODE(ni); 4377 int error; 4378 4379 WPI_NT_LOCK(sc); 4380 4381 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 4382 4383 if (vap->iv_opmode != IEEE80211_M_STA && wn->id == WPI_ID_UNDEFINED) { 4384 if ((error = wpi_add_ibss_node(sc, ni)) != 0) { 4385 device_printf(sc->sc_dev, 4386 "%s: could not add IBSS node, error %d\n", 4387 __func__, error); 4388 } 4389 } 4390 WPI_NT_UNLOCK(sc); 4391} 4392 4393static int 4394wpi_run(struct wpi_softc *sc, struct ieee80211vap *vap) 4395{ 4396 struct ieee80211com *ic = vap->iv_ic; 4397 struct ieee80211_node *ni = vap->iv_bss; 4398 struct ieee80211_channel *c = ni->ni_chan; 4399 int error; 4400 4401 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 4402 4403 if (vap->iv_opmode == IEEE80211_M_MONITOR) { 4404 /* Link LED blinks while monitoring. */ 4405 wpi_set_led(sc, WPI_LED_LINK, 5, 5); 4406 return 0; 4407 } 4408 4409 /* XXX kernel panic workaround */ 4410 if (c == IEEE80211_CHAN_ANYC) { 4411 device_printf(sc->sc_dev, "%s: incomplete configuration\n", 4412 __func__); 4413 return EINVAL; 4414 } 4415 4416 if ((error = wpi_set_timing(sc, ni)) != 0) { 4417 device_printf(sc->sc_dev, 4418 "%s: could not set timing, error %d\n", __func__, error); 4419 return error; 4420 } 4421 4422 /* Update adapter configuration. */ 4423 WPI_RXON_LOCK(sc); 4424 IEEE80211_ADDR_COPY(sc->rxon.bssid, ni->ni_bssid); 4425 sc->rxon.associd = htole16(IEEE80211_NODE_AID(ni)); 4426 sc->rxon.chan = ieee80211_chan2ieee(ic, c); 4427 sc->rxon.flags = htole32(WPI_RXON_TSF | WPI_RXON_CTS_TO_SELF); 4428 if (IEEE80211_IS_CHAN_2GHZ(c)) 4429 sc->rxon.flags |= htole32(WPI_RXON_AUTO | WPI_RXON_24GHZ); 4430 if (ic->ic_flags & IEEE80211_F_SHSLOT) 4431 sc->rxon.flags |= htole32(WPI_RXON_SHSLOT); 4432 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 4433 sc->rxon.flags |= htole32(WPI_RXON_SHPREAMBLE); 4434 if (IEEE80211_IS_CHAN_A(c)) { 4435 sc->rxon.cck_mask = 0; 4436 sc->rxon.ofdm_mask = 0x15; 4437 } else if (IEEE80211_IS_CHAN_B(c)) { 4438 sc->rxon.cck_mask = 0x03; 4439 sc->rxon.ofdm_mask = 0; 4440 } else { 4441 /* Assume 802.11b/g. */ 4442 sc->rxon.cck_mask = 0x0f; 4443 sc->rxon.ofdm_mask = 0x15; 4444 } 4445 sc->rxon.filter |= htole32(WPI_FILTER_BSS); 4446 4447 DPRINTF(sc, WPI_DEBUG_STATE, "rxon chan %d flags %x\n", 4448 sc->rxon.chan, sc->rxon.flags); 4449 4450 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) { 4451 device_printf(sc->sc_dev, "%s: could not send RXON\n", 4452 __func__); 4453 return error; 4454 } 4455 4456 /* Start periodic calibration timer. */ 4457 callout_reset(&sc->calib_to, 60*hz, wpi_calib_timeout, sc); 4458 4459 WPI_RXON_UNLOCK(sc); 4460 4461 if (vap->iv_opmode == IEEE80211_M_IBSS || 4462 vap->iv_opmode == IEEE80211_M_HOSTAP) { 4463 if ((error = wpi_setup_beacon(sc, ni)) != 0) { 4464 device_printf(sc->sc_dev, 4465 "%s: could not setup beacon, error %d\n", __func__, 4466 error); 4467 return error; 4468 } 4469 } 4470 4471 if (vap->iv_opmode == IEEE80211_M_STA) { 4472 /* Add BSS node. */ 4473 WPI_NT_LOCK(sc); 4474 error = wpi_add_sta_node(sc, ni); 4475 WPI_NT_UNLOCK(sc); 4476 if (error != 0) { 4477 device_printf(sc->sc_dev, 4478 "%s: could not add BSS node, error %d\n", __func__, 4479 error); 4480 return error; 4481 } 4482 } 4483 4484 /* Link LED always on while associated. */ 4485 wpi_set_led(sc, WPI_LED_LINK, 0, 1); 4486 4487 /* Enable power-saving mode if requested by user. */ 4488 if ((vap->iv_flags & IEEE80211_F_PMGTON) && 4489 vap->iv_opmode != IEEE80211_M_IBSS) 4490 (void)wpi_set_pslevel(sc, 0, 3, 1); 4491 4492 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 4493 4494 return 0; 4495} 4496 4497static int 4498wpi_load_key(struct ieee80211_node *ni, const struct ieee80211_key *k) 4499{ 4500 const struct ieee80211_cipher *cip = k->wk_cipher; 4501 struct ieee80211vap *vap = ni->ni_vap; 4502 struct wpi_softc *sc = ni->ni_ic->ic_softc; 4503 struct wpi_node *wn = WPI_NODE(ni); 4504 struct wpi_node_info node; 4505 uint16_t kflags; 4506 int error; 4507 4508 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 4509 4510 if (wpi_check_node_entry(sc, wn->id) == 0) { 4511 device_printf(sc->sc_dev, "%s: node does not exist\n", 4512 __func__); 4513 return 0; 4514 } 4515 4516 switch (cip->ic_cipher) { 4517 case IEEE80211_CIPHER_AES_CCM: 4518 kflags = WPI_KFLAG_CCMP; 4519 break; 4520 4521 default: 4522 device_printf(sc->sc_dev, "%s: unknown cipher %d\n", __func__, 4523 cip->ic_cipher); 4524 return 0; 4525 } 4526 4527 kflags |= WPI_KFLAG_KID(k->wk_keyix); 4528 if (k->wk_flags & IEEE80211_KEY_GROUP) 4529 kflags |= WPI_KFLAG_MULTICAST; 4530 4531 memset(&node, 0, sizeof node); 4532 node.id = wn->id; 4533 node.control = WPI_NODE_UPDATE; 4534 node.flags = WPI_FLAG_KEY_SET; 4535 node.kflags = htole16(kflags); 4536 memcpy(node.key, k->wk_key, k->wk_keylen); 4537again: 4538 DPRINTF(sc, WPI_DEBUG_KEY, 4539 "%s: setting %s key id %d for node %d (%s)\n", __func__, 4540 (kflags & WPI_KFLAG_MULTICAST) ? "group" : "ucast", k->wk_keyix, 4541 node.id, ether_sprintf(ni->ni_macaddr)); 4542 4543 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1); 4544 if (error != 0) { 4545 device_printf(sc->sc_dev, "can't update node info, error %d\n", 4546 error); 4547 return !error; 4548 } 4549 4550 if (!(kflags & WPI_KFLAG_MULTICAST) && &vap->iv_nw_keys[0] <= k && 4551 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 4552 kflags |= WPI_KFLAG_MULTICAST; 4553 node.kflags = htole16(kflags); 4554 4555 goto again; 4556 } 4557 4558 return 1; 4559} 4560 4561static void 4562wpi_load_key_cb(void *arg, struct ieee80211_node *ni) 4563{ 4564 const struct ieee80211_key *k = arg; 4565 struct ieee80211vap *vap = ni->ni_vap; 4566 struct wpi_softc *sc = ni->ni_ic->ic_softc; 4567 struct wpi_node *wn = WPI_NODE(ni); 4568 int error; 4569 4570 if (vap->iv_bss == ni && wn->id == WPI_ID_UNDEFINED) 4571 return; 4572 4573 WPI_NT_LOCK(sc); 4574 error = wpi_load_key(ni, k); 4575 WPI_NT_UNLOCK(sc); 4576 4577 if (error == 0) { 4578 device_printf(sc->sc_dev, "%s: error while setting key\n", 4579 __func__); 4580 } 4581} 4582 4583static int 4584wpi_set_global_keys(struct ieee80211_node *ni) 4585{ 4586 struct ieee80211vap *vap = ni->ni_vap; 4587 struct ieee80211_key *wk = &vap->iv_nw_keys[0]; 4588 int error = 1; 4589 4590 for (; wk < &vap->iv_nw_keys[IEEE80211_WEP_NKID] && error; wk++) 4591 if (wk->wk_keyix != IEEE80211_KEYIX_NONE) 4592 error = wpi_load_key(ni, wk); 4593 4594 return !error; 4595} 4596 4597static int 4598wpi_del_key(struct ieee80211_node *ni, const struct ieee80211_key *k) 4599{ 4600 struct ieee80211vap *vap = ni->ni_vap; 4601 struct wpi_softc *sc = ni->ni_ic->ic_softc; 4602 struct wpi_node *wn = WPI_NODE(ni); 4603 struct wpi_node_info node; 4604 uint16_t kflags; 4605 int error; 4606 4607 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 4608 4609 if (wpi_check_node_entry(sc, wn->id) == 0) { 4610 DPRINTF(sc, WPI_DEBUG_KEY, "%s: node was removed\n", __func__); 4611 return 1; /* Nothing to do. */ 4612 } 4613 4614 kflags = WPI_KFLAG_KID(k->wk_keyix); 4615 if (k->wk_flags & IEEE80211_KEY_GROUP) 4616 kflags |= WPI_KFLAG_MULTICAST; 4617 4618 memset(&node, 0, sizeof node); 4619 node.id = wn->id; 4620 node.control = WPI_NODE_UPDATE; 4621 node.flags = WPI_FLAG_KEY_SET; 4622 node.kflags = htole16(kflags); 4623again: 4624 DPRINTF(sc, WPI_DEBUG_KEY, "%s: deleting %s key %d for node %d (%s)\n", 4625 __func__, (kflags & WPI_KFLAG_MULTICAST) ? "group" : "ucast", 4626 k->wk_keyix, node.id, ether_sprintf(ni->ni_macaddr)); 4627 4628 error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1); 4629 if (error != 0) { 4630 device_printf(sc->sc_dev, "can't update node info, error %d\n", 4631 error); 4632 return !error; 4633 } 4634 4635 if (!(kflags & WPI_KFLAG_MULTICAST) && &vap->iv_nw_keys[0] <= k && 4636 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 4637 kflags |= WPI_KFLAG_MULTICAST; 4638 node.kflags = htole16(kflags); 4639 4640 goto again; 4641 } 4642 4643 return 1; 4644} 4645 4646static void 4647wpi_del_key_cb(void *arg, struct ieee80211_node *ni) 4648{ 4649 const struct ieee80211_key *k = arg; 4650 struct ieee80211vap *vap = ni->ni_vap; 4651 struct wpi_softc *sc = ni->ni_ic->ic_softc; 4652 struct wpi_node *wn = WPI_NODE(ni); 4653 int error; 4654 4655 if (vap->iv_bss == ni && wn->id == WPI_ID_UNDEFINED) 4656 return; 4657 4658 WPI_NT_LOCK(sc); 4659 error = wpi_del_key(ni, k); 4660 WPI_NT_UNLOCK(sc); 4661 4662 if (error == 0) { 4663 device_printf(sc->sc_dev, "%s: error while deleting key\n", 4664 __func__); 4665 } 4666} 4667 4668static int 4669wpi_process_key(struct ieee80211vap *vap, const struct ieee80211_key *k, 4670 int set) 4671{ 4672 struct ieee80211com *ic = vap->iv_ic; 4673 struct wpi_softc *sc = ic->ic_softc; 4674 struct wpi_vap *wvp = WPI_VAP(vap); 4675 struct ieee80211_node *ni; 4676 int error, ni_ref = 0; 4677 4678 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 4679 4680 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 4681 /* Not for us. */ 4682 return 1; 4683 } 4684 4685 if (!(k->wk_flags & IEEE80211_KEY_RECV)) { 4686 /* XMIT keys are handled in wpi_tx_data(). */ 4687 return 1; 4688 } 4689 4690 /* Handle group keys. */ 4691 if (&vap->iv_nw_keys[0] <= k && 4692 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]) { 4693 WPI_NT_LOCK(sc); 4694 if (set) 4695 wvp->wv_gtk |= WPI_VAP_KEY(k->wk_keyix); 4696 else 4697 wvp->wv_gtk &= ~WPI_VAP_KEY(k->wk_keyix); 4698 WPI_NT_UNLOCK(sc); 4699 4700 if (vap->iv_state == IEEE80211_S_RUN) { 4701 ieee80211_iterate_nodes(&ic->ic_sta, 4702 set ? wpi_load_key_cb : wpi_del_key_cb, 4703 __DECONST(void *, k)); 4704 } 4705 4706 return 1; 4707 } 4708 4709 switch (vap->iv_opmode) { 4710 case IEEE80211_M_STA: 4711 ni = vap->iv_bss; 4712 break; 4713 4714 case IEEE80211_M_IBSS: 4715 case IEEE80211_M_AHDEMO: 4716 case IEEE80211_M_HOSTAP: 4717 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, k->wk_macaddr); 4718 if (ni == NULL) 4719 return 0; /* should not happen */ 4720 4721 ni_ref = 1; 4722 break; 4723 4724 default: 4725 device_printf(sc->sc_dev, "%s: unknown opmode %d\n", __func__, 4726 vap->iv_opmode); 4727 return 0; 4728 } 4729 4730 WPI_NT_LOCK(sc); 4731 if (set) 4732 error = wpi_load_key(ni, k); 4733 else 4734 error = wpi_del_key(ni, k); 4735 WPI_NT_UNLOCK(sc); 4736 4737 if (ni_ref) 4738 ieee80211_node_decref(ni); 4739 4740 return error; 4741} 4742 4743static int 4744wpi_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 4745{ 4746 return wpi_process_key(vap, k, 1); 4747} 4748 4749static int 4750wpi_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 4751{ 4752 return wpi_process_key(vap, k, 0); 4753} 4754 4755/* 4756 * This function is called after the runtime firmware notifies us of its 4757 * readiness (called in a process context). 4758 */ 4759static int 4760wpi_post_alive(struct wpi_softc *sc) 4761{ 4762 int ntries, error; 4763 4764 /* Check (again) that the radio is not disabled. */ 4765 if ((error = wpi_nic_lock(sc)) != 0) 4766 return error; 4767 4768 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 4769 4770 /* NB: Runtime firmware must be up and running. */ 4771 if (!(wpi_prph_read(sc, WPI_APMG_RFKILL) & 1)) { 4772 device_printf(sc->sc_dev, 4773 "RF switch: radio disabled (%s)\n", __func__); 4774 wpi_nic_unlock(sc); 4775 return EPERM; /* :-) */ 4776 } 4777 wpi_nic_unlock(sc); 4778 4779 /* Wait for thermal sensor to calibrate. */ 4780 for (ntries = 0; ntries < 1000; ntries++) { 4781 if ((sc->temp = (int)WPI_READ(sc, WPI_UCODE_GP2)) != 0) 4782 break; 4783 DELAY(10); 4784 } 4785 4786 if (ntries == 1000) { 4787 device_printf(sc->sc_dev, 4788 "timeout waiting for thermal sensor calibration\n"); 4789 return ETIMEDOUT; 4790 } 4791 4792 DPRINTF(sc, WPI_DEBUG_TEMP, "temperature %d\n", sc->temp); 4793 return 0; 4794} 4795 4796/* 4797 * The firmware boot code is small and is intended to be copied directly into 4798 * the NIC internal memory (no DMA transfer). 4799 */ 4800static int 4801wpi_load_bootcode(struct wpi_softc *sc, const uint8_t *ucode, int size) 4802{ 4803 int error, ntries; 4804 4805 DPRINTF(sc, WPI_DEBUG_HW, "Loading microcode size 0x%x\n", size); 4806 4807 size /= sizeof (uint32_t); 4808 4809 if ((error = wpi_nic_lock(sc)) != 0) 4810 return error; 4811 4812 /* Copy microcode image into NIC memory. */ 4813 wpi_prph_write_region_4(sc, WPI_BSM_SRAM_BASE, 4814 (const uint32_t *)ucode, size); 4815 4816 wpi_prph_write(sc, WPI_BSM_WR_MEM_SRC, 0); 4817 wpi_prph_write(sc, WPI_BSM_WR_MEM_DST, WPI_FW_TEXT_BASE); 4818 wpi_prph_write(sc, WPI_BSM_WR_DWCOUNT, size); 4819 4820 /* Start boot load now. */ 4821 wpi_prph_write(sc, WPI_BSM_WR_CTRL, WPI_BSM_WR_CTRL_START); 4822 4823 /* Wait for transfer to complete. */ 4824 for (ntries = 0; ntries < 1000; ntries++) { 4825 uint32_t status = WPI_READ(sc, WPI_FH_TX_STATUS); 4826 DPRINTF(sc, WPI_DEBUG_HW, 4827 "firmware status=0x%x, val=0x%x, result=0x%x\n", status, 4828 WPI_FH_TX_STATUS_IDLE(6), 4829 status & WPI_FH_TX_STATUS_IDLE(6)); 4830 if (status & WPI_FH_TX_STATUS_IDLE(6)) { 4831 DPRINTF(sc, WPI_DEBUG_HW, 4832 "Status Match! - ntries = %d\n", ntries); 4833 break; 4834 } 4835 DELAY(10); 4836 } 4837 if (ntries == 1000) { 4838 device_printf(sc->sc_dev, "%s: could not load boot firmware\n", 4839 __func__); 4840 wpi_nic_unlock(sc); 4841 return ETIMEDOUT; 4842 } 4843 4844 /* Enable boot after power up. */ 4845 wpi_prph_write(sc, WPI_BSM_WR_CTRL, WPI_BSM_WR_CTRL_START_EN); 4846 4847 wpi_nic_unlock(sc); 4848 return 0; 4849} 4850 4851static int 4852wpi_load_firmware(struct wpi_softc *sc) 4853{ 4854 struct wpi_fw_info *fw = &sc->fw; 4855 struct wpi_dma_info *dma = &sc->fw_dma; 4856 int error; 4857 4858 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 4859 4860 /* Copy initialization sections into pre-allocated DMA-safe memory. */ 4861 memcpy(dma->vaddr, fw->init.data, fw->init.datasz); 4862 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 4863 memcpy(dma->vaddr + WPI_FW_DATA_MAXSZ, fw->init.text, fw->init.textsz); 4864 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 4865 4866 /* Tell adapter where to find initialization sections. */ 4867 if ((error = wpi_nic_lock(sc)) != 0) 4868 return error; 4869 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_ADDR, dma->paddr); 4870 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_SIZE, fw->init.datasz); 4871 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_ADDR, 4872 dma->paddr + WPI_FW_DATA_MAXSZ); 4873 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_SIZE, fw->init.textsz); 4874 wpi_nic_unlock(sc); 4875 4876 /* Load firmware boot code. */ 4877 error = wpi_load_bootcode(sc, fw->boot.text, fw->boot.textsz); 4878 if (error != 0) { 4879 device_printf(sc->sc_dev, "%s: could not load boot firmware\n", 4880 __func__); 4881 return error; 4882 } 4883 4884 /* Now press "execute". */ 4885 WPI_WRITE(sc, WPI_RESET, 0); 4886 4887 /* Wait at most one second for first alive notification. */ 4888 if ((error = mtx_sleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) { 4889 device_printf(sc->sc_dev, 4890 "%s: timeout waiting for adapter to initialize, error %d\n", 4891 __func__, error); 4892 return error; 4893 } 4894 4895 /* Copy runtime sections into pre-allocated DMA-safe memory. */ 4896 memcpy(dma->vaddr, fw->main.data, fw->main.datasz); 4897 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 4898 memcpy(dma->vaddr + WPI_FW_DATA_MAXSZ, fw->main.text, fw->main.textsz); 4899 bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE); 4900 4901 /* Tell adapter where to find runtime sections. */ 4902 if ((error = wpi_nic_lock(sc)) != 0) 4903 return error; 4904 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_ADDR, dma->paddr); 4905 wpi_prph_write(sc, WPI_BSM_DRAM_DATA_SIZE, fw->main.datasz); 4906 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_ADDR, 4907 dma->paddr + WPI_FW_DATA_MAXSZ); 4908 wpi_prph_write(sc, WPI_BSM_DRAM_TEXT_SIZE, 4909 WPI_FW_UPDATED | fw->main.textsz); 4910 wpi_nic_unlock(sc); 4911 4912 return 0; 4913} 4914 4915static int 4916wpi_read_firmware(struct wpi_softc *sc) 4917{ 4918 const struct firmware *fp; 4919 struct wpi_fw_info *fw = &sc->fw; 4920 const struct wpi_firmware_hdr *hdr; 4921 int error; 4922 4923 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 4924 4925 DPRINTF(sc, WPI_DEBUG_FIRMWARE, 4926 "Attempting Loading Firmware from %s module\n", WPI_FW_NAME); 4927 4928 WPI_UNLOCK(sc); 4929 fp = firmware_get(WPI_FW_NAME); 4930 WPI_LOCK(sc); 4931 4932 if (fp == NULL) { 4933 device_printf(sc->sc_dev, 4934 "could not load firmware image '%s'\n", WPI_FW_NAME); 4935 return EINVAL; 4936 } 4937 4938 sc->fw_fp = fp; 4939 4940 if (fp->datasize < sizeof (struct wpi_firmware_hdr)) { 4941 device_printf(sc->sc_dev, 4942 "firmware file too short: %zu bytes\n", fp->datasize); 4943 error = EINVAL; 4944 goto fail; 4945 } 4946 4947 fw->size = fp->datasize; 4948 fw->data = (const uint8_t *)fp->data; 4949 4950 /* Extract firmware header information. */ 4951 hdr = (const struct wpi_firmware_hdr *)fw->data; 4952 4953 /* | RUNTIME FIRMWARE | INIT FIRMWARE | BOOT FW | 4954 |HDR|<--TEXT-->|<--DATA-->|<--TEXT-->|<--DATA-->|<--TEXT-->| */ 4955 4956 fw->main.textsz = le32toh(hdr->rtextsz); 4957 fw->main.datasz = le32toh(hdr->rdatasz); 4958 fw->init.textsz = le32toh(hdr->itextsz); 4959 fw->init.datasz = le32toh(hdr->idatasz); 4960 fw->boot.textsz = le32toh(hdr->btextsz); 4961 fw->boot.datasz = 0; 4962 4963 /* Sanity-check firmware header. */ 4964 if (fw->main.textsz > WPI_FW_TEXT_MAXSZ || 4965 fw->main.datasz > WPI_FW_DATA_MAXSZ || 4966 fw->init.textsz > WPI_FW_TEXT_MAXSZ || 4967 fw->init.datasz > WPI_FW_DATA_MAXSZ || 4968 fw->boot.textsz > WPI_FW_BOOT_TEXT_MAXSZ || 4969 (fw->boot.textsz & 3) != 0) { 4970 device_printf(sc->sc_dev, "invalid firmware header\n"); 4971 error = EINVAL; 4972 goto fail; 4973 } 4974 4975 /* Check that all firmware sections fit. */ 4976 if (fw->size < sizeof (*hdr) + fw->main.textsz + fw->main.datasz + 4977 fw->init.textsz + fw->init.datasz + fw->boot.textsz) { 4978 device_printf(sc->sc_dev, 4979 "firmware file too short: %zu bytes\n", fw->size); 4980 error = EINVAL; 4981 goto fail; 4982 } 4983 4984 /* Get pointers to firmware sections. */ 4985 fw->main.text = (const uint8_t *)(hdr + 1); 4986 fw->main.data = fw->main.text + fw->main.textsz; 4987 fw->init.text = fw->main.data + fw->main.datasz; 4988 fw->init.data = fw->init.text + fw->init.textsz; 4989 fw->boot.text = fw->init.data + fw->init.datasz; 4990 4991 DPRINTF(sc, WPI_DEBUG_FIRMWARE, 4992 "Firmware Version: Major %d, Minor %d, Driver %d, \n" 4993 "runtime (text: %u, data: %u) init (text: %u, data %u) " 4994 "boot (text %u)\n", hdr->major, hdr->minor, le32toh(hdr->driver), 4995 fw->main.textsz, fw->main.datasz, 4996 fw->init.textsz, fw->init.datasz, fw->boot.textsz); 4997 4998 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->main.text %p\n", fw->main.text); 4999 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->main.data %p\n", fw->main.data); 5000 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->init.text %p\n", fw->init.text); 5001 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->init.data %p\n", fw->init.data); 5002 DPRINTF(sc, WPI_DEBUG_FIRMWARE, "fw->boot.text %p\n", fw->boot.text); 5003 5004 return 0; 5005 5006fail: wpi_unload_firmware(sc); 5007 return error; 5008} 5009 5010/** 5011 * Free the referenced firmware image 5012 */ 5013static void 5014wpi_unload_firmware(struct wpi_softc *sc) 5015{ 5016 if (sc->fw_fp != NULL) { 5017 firmware_put(sc->fw_fp, FIRMWARE_UNLOAD); 5018 sc->fw_fp = NULL; 5019 } 5020} 5021 5022static int 5023wpi_clock_wait(struct wpi_softc *sc) 5024{ 5025 int ntries; 5026 5027 /* Set "initialization complete" bit. */ 5028 WPI_SETBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_INIT_DONE); 5029 5030 /* Wait for clock stabilization. */ 5031 for (ntries = 0; ntries < 2500; ntries++) { 5032 if (WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_MAC_CLOCK_READY) 5033 return 0; 5034 DELAY(100); 5035 } 5036 device_printf(sc->sc_dev, 5037 "%s: timeout waiting for clock stabilization\n", __func__); 5038 5039 return ETIMEDOUT; 5040} 5041 5042static int 5043wpi_apm_init(struct wpi_softc *sc) 5044{ 5045 uint32_t reg; 5046 int error; 5047 5048 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 5049 5050 /* Disable L0s exit timer (NMI bug workaround). */ 5051 WPI_SETBITS(sc, WPI_GIO_CHICKEN, WPI_GIO_CHICKEN_DIS_L0S_TIMER); 5052 /* Don't wait for ICH L0s (ICH bug workaround). */ 5053 WPI_SETBITS(sc, WPI_GIO_CHICKEN, WPI_GIO_CHICKEN_L1A_NO_L0S_RX); 5054 5055 /* Set FH wait threshold to max (HW bug under stress workaround). */ 5056 WPI_SETBITS(sc, WPI_DBG_HPET_MEM, 0xffff0000); 5057 5058 /* Retrieve PCIe Active State Power Management (ASPM). */ 5059 reg = pci_read_config(sc->sc_dev, sc->sc_cap_off + 0x10, 1); 5060 /* Workaround for HW instability in PCIe L0->L0s->L1 transition. */ 5061 if (reg & 0x02) /* L1 Entry enabled. */ 5062 WPI_SETBITS(sc, WPI_GIO, WPI_GIO_L0S_ENA); 5063 else 5064 WPI_CLRBITS(sc, WPI_GIO, WPI_GIO_L0S_ENA); 5065 5066 WPI_SETBITS(sc, WPI_ANA_PLL, WPI_ANA_PLL_INIT); 5067 5068 /* Wait for clock stabilization before accessing prph. */ 5069 if ((error = wpi_clock_wait(sc)) != 0) 5070 return error; 5071 5072 if ((error = wpi_nic_lock(sc)) != 0) 5073 return error; 5074 /* Cleanup. */ 5075 wpi_prph_write(sc, WPI_APMG_CLK_DIS, 0x00000400); 5076 wpi_prph_clrbits(sc, WPI_APMG_PS, 0x00000200); 5077 5078 /* Enable DMA and BSM (Bootstrap State Machine). */ 5079 wpi_prph_write(sc, WPI_APMG_CLK_EN, 5080 WPI_APMG_CLK_CTRL_DMA_CLK_RQT | WPI_APMG_CLK_CTRL_BSM_CLK_RQT); 5081 DELAY(20); 5082 /* Disable L1-Active. */ 5083 wpi_prph_setbits(sc, WPI_APMG_PCI_STT, WPI_APMG_PCI_STT_L1A_DIS); 5084 wpi_nic_unlock(sc); 5085 5086 return 0; 5087} 5088 5089static void 5090wpi_apm_stop_master(struct wpi_softc *sc) 5091{ 5092 int ntries; 5093 5094 /* Stop busmaster DMA activity. */ 5095 WPI_SETBITS(sc, WPI_RESET, WPI_RESET_STOP_MASTER); 5096 5097 if ((WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_PS_MASK) == 5098 WPI_GP_CNTRL_MAC_PS) 5099 return; /* Already asleep. */ 5100 5101 for (ntries = 0; ntries < 100; ntries++) { 5102 if (WPI_READ(sc, WPI_RESET) & WPI_RESET_MASTER_DISABLED) 5103 return; 5104 DELAY(10); 5105 } 5106 device_printf(sc->sc_dev, "%s: timeout waiting for master\n", 5107 __func__); 5108} 5109 5110static void 5111wpi_apm_stop(struct wpi_softc *sc) 5112{ 5113 wpi_apm_stop_master(sc); 5114 5115 /* Reset the entire device. */ 5116 WPI_SETBITS(sc, WPI_RESET, WPI_RESET_SW); 5117 DELAY(10); 5118 /* Clear "initialization complete" bit. */ 5119 WPI_CLRBITS(sc, WPI_GP_CNTRL, WPI_GP_CNTRL_INIT_DONE); 5120} 5121 5122static void 5123wpi_nic_config(struct wpi_softc *sc) 5124{ 5125 uint32_t rev; 5126 5127 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 5128 5129 /* voodoo from the Linux "driver".. */ 5130 rev = pci_read_config(sc->sc_dev, PCIR_REVID, 1); 5131 if ((rev & 0xc0) == 0x40) 5132 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_ALM_MB); 5133 else if (!(rev & 0x80)) 5134 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_ALM_MM); 5135 5136 if (sc->cap == 0x80) 5137 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_SKU_MRC); 5138 5139 if ((sc->rev & 0xf0) == 0xd0) 5140 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_REV_D); 5141 else 5142 WPI_CLRBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_REV_D); 5143 5144 if (sc->type > 1) 5145 WPI_SETBITS(sc, WPI_HW_IF_CONFIG, WPI_HW_IF_CONFIG_TYPE_B); 5146} 5147 5148static int 5149wpi_hw_init(struct wpi_softc *sc) 5150{ 5151 int chnl, ntries, error; 5152 5153 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 5154 5155 /* Clear pending interrupts. */ 5156 WPI_WRITE(sc, WPI_INT, 0xffffffff); 5157 5158 if ((error = wpi_apm_init(sc)) != 0) { 5159 device_printf(sc->sc_dev, 5160 "%s: could not power ON adapter, error %d\n", __func__, 5161 error); 5162 return error; 5163 } 5164 5165 /* Select VMAIN power source. */ 5166 if ((error = wpi_nic_lock(sc)) != 0) 5167 return error; 5168 wpi_prph_clrbits(sc, WPI_APMG_PS, WPI_APMG_PS_PWR_SRC_MASK); 5169 wpi_nic_unlock(sc); 5170 /* Spin until VMAIN gets selected. */ 5171 for (ntries = 0; ntries < 5000; ntries++) { 5172 if (WPI_READ(sc, WPI_GPIO_IN) & WPI_GPIO_IN_VMAIN) 5173 break; 5174 DELAY(10); 5175 } 5176 if (ntries == 5000) { 5177 device_printf(sc->sc_dev, "timeout selecting power source\n"); 5178 return ETIMEDOUT; 5179 } 5180 5181 /* Perform adapter initialization. */ 5182 wpi_nic_config(sc); 5183 5184 /* Initialize RX ring. */ 5185 if ((error = wpi_nic_lock(sc)) != 0) 5186 return error; 5187 /* Set physical address of RX ring. */ 5188 WPI_WRITE(sc, WPI_FH_RX_BASE, sc->rxq.desc_dma.paddr); 5189 /* Set physical address of RX read pointer. */ 5190 WPI_WRITE(sc, WPI_FH_RX_RPTR_ADDR, sc->shared_dma.paddr + 5191 offsetof(struct wpi_shared, next)); 5192 WPI_WRITE(sc, WPI_FH_RX_WPTR, 0); 5193 /* Enable RX. */ 5194 WPI_WRITE(sc, WPI_FH_RX_CONFIG, 5195 WPI_FH_RX_CONFIG_DMA_ENA | 5196 WPI_FH_RX_CONFIG_RDRBD_ENA | 5197 WPI_FH_RX_CONFIG_WRSTATUS_ENA | 5198 WPI_FH_RX_CONFIG_MAXFRAG | 5199 WPI_FH_RX_CONFIG_NRBD(WPI_RX_RING_COUNT_LOG) | 5200 WPI_FH_RX_CONFIG_IRQ_DST_HOST | 5201 WPI_FH_RX_CONFIG_IRQ_TIMEOUT(1)); 5202 (void)WPI_READ(sc, WPI_FH_RSSR_TBL); /* barrier */ 5203 wpi_nic_unlock(sc); 5204 WPI_WRITE(sc, WPI_FH_RX_WPTR, (WPI_RX_RING_COUNT - 1) & ~7); 5205 5206 /* Initialize TX rings. */ 5207 if ((error = wpi_nic_lock(sc)) != 0) 5208 return error; 5209 wpi_prph_write(sc, WPI_ALM_SCHED_MODE, 2); /* bypass mode */ 5210 wpi_prph_write(sc, WPI_ALM_SCHED_ARASTAT, 1); /* enable RA0 */ 5211 /* Enable all 6 TX rings. */ 5212 wpi_prph_write(sc, WPI_ALM_SCHED_TXFACT, 0x3f); 5213 wpi_prph_write(sc, WPI_ALM_SCHED_SBYPASS_MODE1, 0x10000); 5214 wpi_prph_write(sc, WPI_ALM_SCHED_SBYPASS_MODE2, 0x30002); 5215 wpi_prph_write(sc, WPI_ALM_SCHED_TXF4MF, 4); 5216 wpi_prph_write(sc, WPI_ALM_SCHED_TXF5MF, 5); 5217 /* Set physical address of TX rings. */ 5218 WPI_WRITE(sc, WPI_FH_TX_BASE, sc->shared_dma.paddr); 5219 WPI_WRITE(sc, WPI_FH_MSG_CONFIG, 0xffff05a5); 5220 5221 /* Enable all DMA channels. */ 5222 for (chnl = 0; chnl < WPI_NDMACHNLS; chnl++) { 5223 WPI_WRITE(sc, WPI_FH_CBBC_CTRL(chnl), 0); 5224 WPI_WRITE(sc, WPI_FH_CBBC_BASE(chnl), 0); 5225 WPI_WRITE(sc, WPI_FH_TX_CONFIG(chnl), 0x80200008); 5226 } 5227 wpi_nic_unlock(sc); 5228 (void)WPI_READ(sc, WPI_FH_TX_BASE); /* barrier */ 5229 5230 /* Clear "radio off" and "commands blocked" bits. */ 5231 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL); 5232 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_CMD_BLOCKED); 5233 5234 /* Clear pending interrupts. */ 5235 WPI_WRITE(sc, WPI_INT, 0xffffffff); 5236 /* Enable interrupts. */ 5237 WPI_WRITE(sc, WPI_INT_MASK, WPI_INT_MASK_DEF); 5238 5239 /* _Really_ make sure "radio off" bit is cleared! */ 5240 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL); 5241 WPI_WRITE(sc, WPI_UCODE_GP1_CLR, WPI_UCODE_GP1_RFKILL); 5242 5243 if ((error = wpi_load_firmware(sc)) != 0) { 5244 device_printf(sc->sc_dev, 5245 "%s: could not load firmware, error %d\n", __func__, 5246 error); 5247 return error; 5248 } 5249 /* Wait at most one second for firmware alive notification. */ 5250 if ((error = mtx_sleep(sc, &sc->sc_mtx, PCATCH, "wpiinit", hz)) != 0) { 5251 device_printf(sc->sc_dev, 5252 "%s: timeout waiting for adapter to initialize, error %d\n", 5253 __func__, error); 5254 return error; 5255 } 5256 5257 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 5258 5259 /* Do post-firmware initialization. */ 5260 return wpi_post_alive(sc); 5261} 5262 5263static void 5264wpi_hw_stop(struct wpi_softc *sc) 5265{ 5266 int chnl, qid, ntries; 5267 5268 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 5269 5270 if (WPI_READ(sc, WPI_UCODE_GP1) & WPI_UCODE_GP1_MAC_SLEEP) 5271 wpi_nic_lock(sc); 5272 5273 WPI_WRITE(sc, WPI_RESET, WPI_RESET_NEVO); 5274 5275 /* Disable interrupts. */ 5276 WPI_WRITE(sc, WPI_INT_MASK, 0); 5277 WPI_WRITE(sc, WPI_INT, 0xffffffff); 5278 WPI_WRITE(sc, WPI_FH_INT, 0xffffffff); 5279 5280 /* Make sure we no longer hold the NIC lock. */ 5281 wpi_nic_unlock(sc); 5282 5283 if (wpi_nic_lock(sc) == 0) { 5284 /* Stop TX scheduler. */ 5285 wpi_prph_write(sc, WPI_ALM_SCHED_MODE, 0); 5286 wpi_prph_write(sc, WPI_ALM_SCHED_TXFACT, 0); 5287 5288 /* Stop all DMA channels. */ 5289 for (chnl = 0; chnl < WPI_NDMACHNLS; chnl++) { 5290 WPI_WRITE(sc, WPI_FH_TX_CONFIG(chnl), 0); 5291 for (ntries = 0; ntries < 200; ntries++) { 5292 if (WPI_READ(sc, WPI_FH_TX_STATUS) & 5293 WPI_FH_TX_STATUS_IDLE(chnl)) 5294 break; 5295 DELAY(10); 5296 } 5297 } 5298 wpi_nic_unlock(sc); 5299 } 5300 5301 /* Stop RX ring. */ 5302 wpi_reset_rx_ring(sc); 5303 5304 /* Reset all TX rings. */ 5305 for (qid = 0; qid < WPI_NTXQUEUES; qid++) 5306 wpi_reset_tx_ring(sc, &sc->txq[qid]); 5307 5308 if (wpi_nic_lock(sc) == 0) { 5309 wpi_prph_write(sc, WPI_APMG_CLK_DIS, 5310 WPI_APMG_CLK_CTRL_DMA_CLK_RQT); 5311 wpi_nic_unlock(sc); 5312 } 5313 DELAY(5); 5314 /* Power OFF adapter. */ 5315 wpi_apm_stop(sc); 5316} 5317 5318static void 5319wpi_radio_on(void *arg0, int pending) 5320{ 5321 struct wpi_softc *sc = arg0; 5322 struct ieee80211com *ic = &sc->sc_ic; 5323 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 5324 5325 device_printf(sc->sc_dev, "RF switch: radio enabled\n"); 5326 5327 WPI_LOCK(sc); 5328 callout_stop(&sc->watchdog_rfkill); 5329 WPI_UNLOCK(sc); 5330 5331 if (vap != NULL) 5332 ieee80211_init(vap); 5333} 5334 5335static void 5336wpi_radio_off(void *arg0, int pending) 5337{ 5338 struct wpi_softc *sc = arg0; 5339 struct ieee80211com *ic = &sc->sc_ic; 5340 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 5341 5342 device_printf(sc->sc_dev, "RF switch: radio disabled\n"); 5343 5344 ieee80211_notify_radio(ic, 0); 5345 wpi_stop(sc); 5346 if (vap != NULL) 5347 ieee80211_stop(vap); 5348 5349 WPI_LOCK(sc); 5350 callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill, sc); 5351 WPI_UNLOCK(sc); 5352} 5353 5354static int 5355wpi_init(struct wpi_softc *sc) 5356{ 5357 int error = 0; 5358 5359 WPI_LOCK(sc); 5360 5361 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_BEGIN, __func__); 5362 5363 if (sc->sc_running != 0) 5364 goto end; 5365 5366 /* Check that the radio is not disabled by hardware switch. */ 5367 if (!(WPI_READ(sc, WPI_GP_CNTRL) & WPI_GP_CNTRL_RFKILL)) { 5368 device_printf(sc->sc_dev, 5369 "RF switch: radio disabled (%s)\n", __func__); 5370 callout_reset(&sc->watchdog_rfkill, hz, wpi_watchdog_rfkill, 5371 sc); 5372 error = EINPROGRESS; 5373 goto end; 5374 } 5375 5376 /* Read firmware images from the filesystem. */ 5377 if ((error = wpi_read_firmware(sc)) != 0) { 5378 device_printf(sc->sc_dev, 5379 "%s: could not read firmware, error %d\n", __func__, 5380 error); 5381 goto end; 5382 } 5383 5384 sc->sc_running = 1; 5385 5386 /* Initialize hardware and upload firmware. */ 5387 error = wpi_hw_init(sc); 5388 wpi_unload_firmware(sc); 5389 if (error != 0) { 5390 device_printf(sc->sc_dev, 5391 "%s: could not initialize hardware, error %d\n", __func__, 5392 error); 5393 goto fail; 5394 } 5395 5396 /* Configure adapter now that it is ready. */ 5397 if ((error = wpi_config(sc)) != 0) { 5398 device_printf(sc->sc_dev, 5399 "%s: could not configure device, error %d\n", __func__, 5400 error); 5401 goto fail; 5402 } 5403 5404 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END, __func__); 5405 5406 WPI_UNLOCK(sc); 5407 5408 return 0; 5409 5410fail: wpi_stop_locked(sc); 5411 5412end: DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_END_ERR, __func__); 5413 WPI_UNLOCK(sc); 5414 5415 return error; 5416} 5417 5418static void 5419wpi_stop_locked(struct wpi_softc *sc) 5420{ 5421 5422 WPI_LOCK_ASSERT(sc); 5423 5424 if (sc->sc_running == 0) 5425 return; 5426 5427 WPI_TX_LOCK(sc); 5428 WPI_TXQ_LOCK(sc); 5429 sc->sc_running = 0; 5430 WPI_TXQ_UNLOCK(sc); 5431 WPI_TX_UNLOCK(sc); 5432 5433 WPI_TXQ_STATE_LOCK(sc); 5434 callout_stop(&sc->tx_timeout); 5435 WPI_TXQ_STATE_UNLOCK(sc); 5436 5437 WPI_RXON_LOCK(sc); 5438 callout_stop(&sc->scan_timeout); 5439 callout_stop(&sc->calib_to); 5440 WPI_RXON_UNLOCK(sc); 5441 5442 /* Power OFF hardware. */ 5443 wpi_hw_stop(sc); 5444} 5445 5446static void 5447wpi_stop(struct wpi_softc *sc) 5448{ 5449 WPI_LOCK(sc); 5450 wpi_stop_locked(sc); 5451 WPI_UNLOCK(sc); 5452} 5453 5454/* 5455 * Callback from net80211 to start a scan. 5456 */ 5457static void 5458wpi_scan_start(struct ieee80211com *ic) 5459{ 5460 struct wpi_softc *sc = ic->ic_softc; 5461 5462 wpi_set_led(sc, WPI_LED_LINK, 20, 2); 5463} 5464 5465/* 5466 * Callback from net80211 to terminate a scan. 5467 */ 5468static void 5469wpi_scan_end(struct ieee80211com *ic) 5470{ 5471 struct wpi_softc *sc = ic->ic_softc; 5472 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 5473 5474 if (vap->iv_state == IEEE80211_S_RUN) 5475 wpi_set_led(sc, WPI_LED_LINK, 0, 1); 5476} 5477 5478/** 5479 * Called by the net80211 framework to indicate to the driver 5480 * that the channel should be changed 5481 */ 5482static void 5483wpi_set_channel(struct ieee80211com *ic) 5484{ 5485 const struct ieee80211_channel *c = ic->ic_curchan; 5486 struct wpi_softc *sc = ic->ic_softc; 5487 int error; 5488 5489 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 5490 5491 WPI_LOCK(sc); 5492 sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq); 5493 sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags); 5494 WPI_UNLOCK(sc); 5495 WPI_TX_LOCK(sc); 5496 sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq); 5497 sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags); 5498 WPI_TX_UNLOCK(sc); 5499 5500 /* 5501 * Only need to set the channel in Monitor mode. AP scanning and auth 5502 * are already taken care of by their respective firmware commands. 5503 */ 5504 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 5505 WPI_RXON_LOCK(sc); 5506 sc->rxon.chan = ieee80211_chan2ieee(ic, c); 5507 if (IEEE80211_IS_CHAN_2GHZ(c)) { 5508 sc->rxon.flags |= htole32(WPI_RXON_AUTO | 5509 WPI_RXON_24GHZ); 5510 } else { 5511 sc->rxon.flags &= ~htole32(WPI_RXON_AUTO | 5512 WPI_RXON_24GHZ); 5513 } 5514 if ((error = wpi_send_rxon(sc, 0, 1)) != 0) 5515 device_printf(sc->sc_dev, 5516 "%s: error %d setting channel\n", __func__, 5517 error); 5518 WPI_RXON_UNLOCK(sc); 5519 } 5520} 5521 5522/** 5523 * Called by net80211 to indicate that we need to scan the current 5524 * channel. The channel is previously be set via the wpi_set_channel 5525 * callback. 5526 */ 5527static void 5528wpi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) 5529{ 5530 struct ieee80211vap *vap = ss->ss_vap; 5531 struct ieee80211com *ic = vap->iv_ic; 5532 struct wpi_softc *sc = ic->ic_softc; 5533 int error; 5534 5535 WPI_RXON_LOCK(sc); 5536 error = wpi_scan(sc, ic->ic_curchan); 5537 WPI_RXON_UNLOCK(sc); 5538 if (error != 0) 5539 ieee80211_cancel_scan(vap); 5540} 5541 5542/** 5543 * Called by the net80211 framework to indicate 5544 * the minimum dwell time has been met, terminate the scan. 5545 * We don't actually terminate the scan as the firmware will notify 5546 * us when it's finished and we have no way to interrupt it. 5547 */ 5548static void 5549wpi_scan_mindwell(struct ieee80211_scan_state *ss) 5550{ 5551 /* NB: don't try to abort scan; wait for firmware to finish */ 5552} 5553 5554static void 5555wpi_hw_reset(void *arg, int pending) 5556{ 5557 struct wpi_softc *sc = arg; 5558 struct ieee80211com *ic = &sc->sc_ic; 5559 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 5560 5561 DPRINTF(sc, WPI_DEBUG_TRACE, TRACE_STR_DOING, __func__); 5562 5563 ieee80211_notify_radio(ic, 0); 5564 if (vap != NULL && (ic->ic_flags & IEEE80211_F_SCAN)) 5565 ieee80211_cancel_scan(vap); 5566 5567 wpi_stop(sc); 5568 if (vap != NULL) { 5569 ieee80211_stop(vap); 5570 ieee80211_init(vap); 5571 } 5572} 5573