| 1 | /*- |
| 2 | * Copyright (c) 2004, 2005 |
| 3 | * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. |
| 4 | * Copyright (c) 2005-2006 Sam Leffler, Errno Consulting |
| 5 | * Copyright (c) 2007 Andrew Thompson <thompsa@FreeBSD.org> |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice unmodified, this list of conditions, and the following |
| 12 | * disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | * |
| 29 | * $FreeBSD: head/sys/dev/iwi/if_iwi.c 298818 2016-04-29 22:14:11Z avos $ |
| 30 | */ |
| 31 | |
| 32 | /*- |
| 33 | * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver |
| 34 | * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm |
| 35 | */ |
| 36 | |
| 37 | #include <sys/param.h> |
| 38 | #include <sys/sysctl.h> |
| 39 | #include <sys/sockio.h> |
| 40 | #include <sys/mbuf.h> |
| 41 | #include <sys/kernel.h> |
| 42 | #include <sys/socket.h> |
| 43 | #include <sys/systm.h> |
| 44 | #include <sys/malloc.h> |
| 45 | #include <sys/lock.h> |
| 46 | #include <sys/module.h> |
| 47 | #include <sys/bus.h> |
| 48 | #include <sys/endian.h> |
| 49 | #include <sys/proc.h> |
| 50 | #include <sys/mount.h> |
| 51 | #include <sys/linker.h> |
| 52 | #include <sys/firmware.h> |
| 53 | #include <sys/taskqueue.h> |
| 54 | #if defined(__DragonFly__) |
| 55 | #include <sys/devfs.h> |
| 56 | #endif |
| 57 | |
| 58 | #if !defined(__DragonFly__) |
| 59 | #include <machine/bus.h> |
| 60 | #include <machine/resource.h> |
| 61 | #endif |
| 62 | #include <sys/rman.h> |
| 63 | |
| 64 | #if defined(__DragonFly__) |
| 65 | #include <bus/pci/pcivar.h> |
| 66 | #include <bus/pci/pcireg.h> |
| 67 | #else |
| 68 | #include <dev/pci/pcireg.h> |
| 69 | #include <dev/pci/pcivar.h> |
| 70 | #endif |
| 71 | |
| 72 | #include <net/bpf.h> |
| 73 | #include <net/if.h> |
| 74 | #include <net/if_var.h> |
| 75 | #include <net/if_arp.h> |
| 76 | #include <net/ethernet.h> |
| 77 | #include <net/if_dl.h> |
| 78 | #include <net/if_media.h> |
| 79 | #include <net/if_types.h> |
| 80 | |
| 81 | #if defined(__DragonFly__) |
| 82 | #include <netproto/802_11/ieee80211_var.h> |
| 83 | #include <netproto/802_11/ieee80211_radiotap.h> |
| 84 | #include <netproto/802_11/ieee80211_input.h> |
| 85 | #include <netproto/802_11/ieee80211_regdomain.h> |
| 86 | #else |
| 87 | #include <net80211/ieee80211_var.h> |
| 88 | #include <net80211/ieee80211_radiotap.h> |
| 89 | #include <net80211/ieee80211_input.h> |
| 90 | #include <net80211/ieee80211_regdomain.h> |
| 91 | #endif |
| 92 | |
| 93 | #include <netinet/in.h> |
| 94 | #include <netinet/in_systm.h> |
| 95 | #include <netinet/in_var.h> |
| 96 | #include <netinet/ip.h> |
| 97 | #include <netinet/if_ether.h> |
| 98 | |
| 99 | #if defined(__DragonFly__) |
| 100 | #include "if_iwireg.h" |
| 101 | #include "if_iwivar.h" |
| 102 | #else |
| 103 | #include <dev/iwi/if_iwireg.h> |
| 104 | #include <dev/iwi/if_iwivar.h> |
| 105 | #endif |
| 106 | |
| 107 | #define IWI_DEBUG |
| 108 | #ifdef IWI_DEBUG |
| 109 | #define DPRINTF(x) do { if (iwi_debug > 0) kprintf x; } while (0) |
| 110 | #define DPRINTFN(n, x) do { if (iwi_debug >= (n)) kprintf x; } while (0) |
| 111 | int iwi_debug = 0; |
| 112 | SYSCTL_INT(_debug, OID_AUTO, iwi, CTLFLAG_RW, &iwi_debug, 0, "iwi debug level"); |
| 113 | |
| 114 | static const char *iwi_fw_states[] = { |
| 115 | "IDLE", /* IWI_FW_IDLE */ |
| 116 | "LOADING", /* IWI_FW_LOADING */ |
| 117 | "ASSOCIATING", /* IWI_FW_ASSOCIATING */ |
| 118 | "DISASSOCIATING", /* IWI_FW_DISASSOCIATING */ |
| 119 | "SCANNING", /* IWI_FW_SCANNING */ |
| 120 | }; |
| 121 | #else |
| 122 | #define DPRINTF(x) |
| 123 | #define DPRINTFN(n, x) |
| 124 | #endif |
| 125 | |
| 126 | MODULE_DEPEND(iwi, pci, 1, 1, 1); |
| 127 | MODULE_DEPEND(iwi, wlan, 1, 1, 1); |
| 128 | MODULE_DEPEND(iwi, firmware, 1, 1, 1); |
| 129 | |
| 130 | enum { |
| 131 | IWI_LED_TX, |
| 132 | IWI_LED_RX, |
| 133 | IWI_LED_POLL, |
| 134 | }; |
| 135 | |
| 136 | struct iwi_ident { |
| 137 | uint16_t vendor; |
| 138 | uint16_t device; |
| 139 | const char *name; |
| 140 | }; |
| 141 | |
| 142 | static const struct iwi_ident iwi_ident_table[] = { |
| 143 | { 0x8086, 0x4220, "Intel(R) PRO/Wireless 2200BG" }, |
| 144 | { 0x8086, 0x4221, "Intel(R) PRO/Wireless 2225BG" }, |
| 145 | { 0x8086, 0x4223, "Intel(R) PRO/Wireless 2915ABG" }, |
| 146 | { 0x8086, 0x4224, "Intel(R) PRO/Wireless 2915ABG" }, |
| 147 | |
| 148 | { 0, 0, NULL } |
| 149 | }; |
| 150 | |
| 151 | static struct ieee80211vap *iwi_vap_create(struct ieee80211com *, |
| 152 | const char [IFNAMSIZ], int, enum ieee80211_opmode, int, |
| 153 | const uint8_t [IEEE80211_ADDR_LEN], |
| 154 | const uint8_t [IEEE80211_ADDR_LEN]); |
| 155 | static void iwi_vap_delete(struct ieee80211vap *); |
| 156 | static void iwi_dma_map_addr(void *, bus_dma_segment_t *, int, int); |
| 157 | static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, |
| 158 | int); |
| 159 | static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); |
| 160 | static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); |
| 161 | static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, |
| 162 | int, bus_addr_t, bus_addr_t); |
| 163 | static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); |
| 164 | static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); |
| 165 | static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, |
| 166 | int); |
| 167 | static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); |
| 168 | static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); |
| 169 | static struct ieee80211_node *iwi_node_alloc(struct ieee80211vap *, |
| 170 | const uint8_t [IEEE80211_ADDR_LEN]); |
| 171 | static void iwi_node_free(struct ieee80211_node *); |
| 172 | static void iwi_media_status(struct ifnet *, struct ifmediareq *); |
| 173 | static int iwi_newstate(struct ieee80211vap *, enum ieee80211_state, int); |
| 174 | static void iwi_wme_init(struct iwi_softc *); |
| 175 | static int iwi_wme_setparams(struct iwi_softc *); |
| 176 | static int iwi_wme_update(struct ieee80211com *); |
| 177 | static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); |
| 178 | static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, |
| 179 | struct iwi_frame *); |
| 180 | static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); |
| 181 | static void iwi_rx_intr(struct iwi_softc *); |
| 182 | static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); |
| 183 | static void iwi_intr(void *); |
| 184 | static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t); |
| 185 | static void iwi_write_ibssnode(struct iwi_softc *, const u_int8_t [], int); |
| 186 | static int iwi_tx_start(struct iwi_softc *, struct mbuf *, |
| 187 | struct ieee80211_node *, int); |
| 188 | static int iwi_raw_xmit(struct ieee80211_node *, struct mbuf *, |
| 189 | const struct ieee80211_bpf_params *); |
| 190 | static void iwi_start(struct iwi_softc *); |
| 191 | static int iwi_transmit(struct ieee80211com *, struct mbuf *); |
| 192 | static void iwi_watchdog(void *); |
| 193 | static void iwi_parent(struct ieee80211com *); |
| 194 | static void iwi_stop_master(struct iwi_softc *); |
| 195 | static int iwi_reset(struct iwi_softc *); |
| 196 | static int iwi_load_ucode(struct iwi_softc *, const struct iwi_fw *); |
| 197 | static int iwi_load_firmware(struct iwi_softc *, const struct iwi_fw *); |
| 198 | static void iwi_release_fw_dma(struct iwi_softc *sc); |
| 199 | static int iwi_config(struct iwi_softc *); |
| 200 | static int iwi_get_firmware(struct iwi_softc *, enum ieee80211_opmode); |
| 201 | static void iwi_put_firmware(struct iwi_softc *); |
| 202 | static void iwi_monitor_scan(void *, int); |
| 203 | static int iwi_scanchan(struct iwi_softc *, unsigned long, int); |
| 204 | static void iwi_scan_start(struct ieee80211com *); |
| 205 | static void iwi_scan_end(struct ieee80211com *); |
| 206 | static void iwi_set_channel(struct ieee80211com *); |
| 207 | static void iwi_scan_curchan(struct ieee80211_scan_state *, unsigned long maxdwell); |
| 208 | static void iwi_scan_mindwell(struct ieee80211_scan_state *); |
| 209 | static int iwi_auth_and_assoc(struct iwi_softc *, struct ieee80211vap *); |
| 210 | static void iwi_disassoc(void *, int); |
| 211 | static int iwi_disassociate(struct iwi_softc *, int quiet); |
| 212 | static void iwi_init_locked(struct iwi_softc *); |
| 213 | static void iwi_init(void *); |
| 214 | static int iwi_init_fw_dma(struct iwi_softc *, int); |
| 215 | static void iwi_stop_locked(void *); |
| 216 | static void iwi_stop(struct iwi_softc *); |
| 217 | static void iwi_restart(void *, int); |
| 218 | static int iwi_getrfkill(struct iwi_softc *); |
| 219 | static void iwi_radio_on(void *, int); |
| 220 | static void iwi_radio_off(void *, int); |
| 221 | static void iwi_sysctlattach(struct iwi_softc *); |
| 222 | static void iwi_led_event(struct iwi_softc *, int); |
| 223 | static void iwi_ledattach(struct iwi_softc *); |
| 224 | |
| 225 | static int iwi_probe(device_t); |
| 226 | static int iwi_attach(device_t); |
| 227 | static int iwi_detach(device_t); |
| 228 | static int iwi_shutdown(device_t); |
| 229 | static int iwi_suspend(device_t); |
| 230 | static int iwi_resume(device_t); |
| 231 | |
| 232 | static device_method_t iwi_methods[] = { |
| 233 | /* Device interface */ |
| 234 | DEVMETHOD(device_probe, iwi_probe), |
| 235 | DEVMETHOD(device_attach, iwi_attach), |
| 236 | DEVMETHOD(device_detach, iwi_detach), |
| 237 | DEVMETHOD(device_shutdown, iwi_shutdown), |
| 238 | DEVMETHOD(device_suspend, iwi_suspend), |
| 239 | DEVMETHOD(device_resume, iwi_resume), |
| 240 | |
| 241 | DEVMETHOD_END |
| 242 | }; |
| 243 | |
| 244 | static driver_t iwi_driver = { |
| 245 | "iwi", |
| 246 | iwi_methods, |
| 247 | sizeof (struct iwi_softc) |
| 248 | }; |
| 249 | |
| 250 | static devclass_t iwi_devclass; |
| 251 | |
| 252 | DRIVER_MODULE(iwi, pci, iwi_driver, iwi_devclass, NULL, NULL); |
| 253 | |
| 254 | MODULE_VERSION(iwi, 1); |
| 255 | |
| 256 | static __inline uint8_t |
| 257 | MEM_READ_1(struct iwi_softc *sc, uint32_t addr) |
| 258 | { |
| 259 | CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); |
| 260 | return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); |
| 261 | } |
| 262 | |
| 263 | static __inline uint32_t |
| 264 | MEM_READ_4(struct iwi_softc *sc, uint32_t addr) |
| 265 | { |
| 266 | CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); |
| 267 | return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); |
| 268 | } |
| 269 | |
| 270 | static int |
| 271 | iwi_probe(device_t dev) |
| 272 | { |
| 273 | const struct iwi_ident *ident; |
| 274 | |
| 275 | for (ident = iwi_ident_table; ident->name != NULL; ident++) { |
| 276 | if (pci_get_vendor(dev) == ident->vendor && |
| 277 | pci_get_device(dev) == ident->device) { |
| 278 | device_set_desc(dev, ident->name); |
| 279 | return (BUS_PROBE_DEFAULT); |
| 280 | } |
| 281 | } |
| 282 | return ENXIO; |
| 283 | } |
| 284 | |
| 285 | static int |
| 286 | iwi_attach(device_t dev) |
| 287 | { |
| 288 | struct iwi_softc *sc = device_get_softc(dev); |
| 289 | struct ieee80211com *ic = &sc->sc_ic; |
| 290 | uint16_t val; |
| 291 | uint8_t bands[IEEE80211_MODE_BYTES]; |
| 292 | int i, error; |
| 293 | |
| 294 | sc->sc_dev = dev; |
| 295 | |
| 296 | IWI_LOCK_INIT(sc); |
| 297 | mbufq_init(&sc->sc_snd, ifqmaxlen); |
| 298 | |
| 299 | #if defined(__DragonFly__) |
| 300 | devfs_clone_bitmap_init(&sc->sc_unr); |
| 301 | #else |
| 302 | sc->sc_unr = new_unrhdr(1, IWI_MAX_IBSSNODE-1, &sc->sc_mtx); |
| 303 | #endif |
| 304 | |
| 305 | TASK_INIT(&sc->sc_radiontask, 0, iwi_radio_on, sc); |
| 306 | TASK_INIT(&sc->sc_radiofftask, 0, iwi_radio_off, sc); |
| 307 | TASK_INIT(&sc->sc_restarttask, 0, iwi_restart, sc); |
| 308 | TASK_INIT(&sc->sc_disassoctask, 0, iwi_disassoc, sc); |
| 309 | TASK_INIT(&sc->sc_monitortask, 0, iwi_monitor_scan, sc); |
| 310 | |
| 311 | #if defined(__DragonFly__) |
| 312 | callout_init_lk(&sc->sc_wdtimer, &sc->sc_lock); |
| 313 | callout_init_lk(&sc->sc_rftimer, &sc->sc_lock); |
| 314 | #else |
| 315 | callout_init_mtx(&sc->sc_wdtimer, &sc->sc_mtx, 0); |
| 316 | callout_init_mtx(&sc->sc_rftimer, &sc->sc_mtx, 0); |
| 317 | #endif |
| 318 | |
| 319 | pci_write_config(dev, 0x41, 0, 1); |
| 320 | |
| 321 | /* enable bus-mastering */ |
| 322 | pci_enable_busmaster(dev); |
| 323 | |
| 324 | i = PCIR_BAR(0); |
| 325 | sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &i, RF_ACTIVE); |
| 326 | if (sc->mem == NULL) { |
| 327 | device_printf(dev, "could not allocate memory resource\n"); |
| 328 | goto fail; |
| 329 | } |
| 330 | |
| 331 | sc->sc_st = rman_get_bustag(sc->mem); |
| 332 | sc->sc_sh = rman_get_bushandle(sc->mem); |
| 333 | |
| 334 | i = 0; |
| 335 | sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i, |
| 336 | RF_ACTIVE | RF_SHAREABLE); |
| 337 | if (sc->irq == NULL) { |
| 338 | device_printf(dev, "could not allocate interrupt resource\n"); |
| 339 | goto fail; |
| 340 | } |
| 341 | |
| 342 | if (iwi_reset(sc) != 0) { |
| 343 | device_printf(dev, "could not reset adapter\n"); |
| 344 | goto fail; |
| 345 | } |
| 346 | |
| 347 | /* |
| 348 | * Allocate rings. |
| 349 | */ |
| 350 | if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { |
| 351 | device_printf(dev, "could not allocate Cmd ring\n"); |
| 352 | goto fail; |
| 353 | } |
| 354 | |
| 355 | for (i = 0; i < 4; i++) { |
| 356 | error = iwi_alloc_tx_ring(sc, &sc->txq[i], IWI_TX_RING_COUNT, |
| 357 | IWI_CSR_TX1_RIDX + i * 4, |
| 358 | IWI_CSR_TX1_WIDX + i * 4); |
| 359 | if (error != 0) { |
| 360 | device_printf(dev, "could not allocate Tx ring %d\n", |
| 361 | i+i); |
| 362 | goto fail; |
| 363 | } |
| 364 | } |
| 365 | |
| 366 | if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { |
| 367 | device_printf(dev, "could not allocate Rx ring\n"); |
| 368 | goto fail; |
| 369 | } |
| 370 | |
| 371 | iwi_wme_init(sc); |
| 372 | |
| 373 | ic->ic_softc = sc; |
| 374 | ic->ic_name = device_get_nameunit(dev); |
| 375 | ic->ic_opmode = IEEE80211_M_STA; |
| 376 | ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ |
| 377 | |
| 378 | /* set device capabilities */ |
| 379 | ic->ic_caps = |
| 380 | IEEE80211_C_STA /* station mode supported */ |
| 381 | | IEEE80211_C_IBSS /* IBSS mode supported */ |
| 382 | | IEEE80211_C_MONITOR /* monitor mode supported */ |
| 383 | | IEEE80211_C_PMGT /* power save supported */ |
| 384 | | IEEE80211_C_SHPREAMBLE /* short preamble supported */ |
| 385 | | IEEE80211_C_WPA /* 802.11i */ |
| 386 | | IEEE80211_C_WME /* 802.11e */ |
| 387 | #if 0 |
| 388 | | IEEE80211_C_BGSCAN /* capable of bg scanning */ |
| 389 | #endif |
| 390 | ; |
| 391 | |
| 392 | /* read MAC address from EEPROM */ |
| 393 | val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); |
| 394 | ic->ic_macaddr[0] = val & 0xff; |
| 395 | ic->ic_macaddr[1] = val >> 8; |
| 396 | val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); |
| 397 | ic->ic_macaddr[2] = val & 0xff; |
| 398 | ic->ic_macaddr[3] = val >> 8; |
| 399 | val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); |
| 400 | ic->ic_macaddr[4] = val & 0xff; |
| 401 | ic->ic_macaddr[5] = val >> 8; |
| 402 | |
| 403 | memset(bands, 0, sizeof(bands)); |
| 404 | setbit(bands, IEEE80211_MODE_11B); |
| 405 | setbit(bands, IEEE80211_MODE_11G); |
| 406 | if (pci_get_device(dev) >= 0x4223) |
| 407 | setbit(bands, IEEE80211_MODE_11A); |
| 408 | ieee80211_init_channels(ic, NULL, bands); |
| 409 | |
| 410 | ieee80211_ifattach(ic); |
| 411 | /* override default methods */ |
| 412 | ic->ic_node_alloc = iwi_node_alloc; |
| 413 | sc->sc_node_free = ic->ic_node_free; |
| 414 | ic->ic_node_free = iwi_node_free; |
| 415 | ic->ic_raw_xmit = iwi_raw_xmit; |
| 416 | ic->ic_scan_start = iwi_scan_start; |
| 417 | ic->ic_scan_end = iwi_scan_end; |
| 418 | ic->ic_set_channel = iwi_set_channel; |
| 419 | ic->ic_scan_curchan = iwi_scan_curchan; |
| 420 | ic->ic_scan_mindwell = iwi_scan_mindwell; |
| 421 | ic->ic_wme.wme_update = iwi_wme_update; |
| 422 | |
| 423 | ic->ic_vap_create = iwi_vap_create; |
| 424 | ic->ic_vap_delete = iwi_vap_delete; |
| 425 | ic->ic_transmit = iwi_transmit; |
| 426 | ic->ic_parent = iwi_parent; |
| 427 | |
| 428 | ieee80211_radiotap_attach(ic, |
| 429 | &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), |
| 430 | IWI_TX_RADIOTAP_PRESENT, |
| 431 | &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), |
| 432 | IWI_RX_RADIOTAP_PRESENT); |
| 433 | |
| 434 | iwi_sysctlattach(sc); |
| 435 | iwi_ledattach(sc); |
| 436 | |
| 437 | /* |
| 438 | * Hook our interrupt after all initialization is complete. |
| 439 | */ |
| 440 | #if defined(__DragonFly__) |
| 441 | error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE, |
| 442 | iwi_intr, sc, &sc->sc_ih, &wlan_global_serializer); |
| 443 | #else |
| 444 | error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, |
| 445 | NULL, iwi_intr, sc, &sc->sc_ih); |
| 446 | #endif |
| 447 | if (error != 0) { |
| 448 | device_printf(dev, "could not set up interrupt\n"); |
| 449 | goto fail; |
| 450 | } |
| 451 | |
| 452 | if (bootverbose) |
| 453 | ieee80211_announce(ic); |
| 454 | |
| 455 | return 0; |
| 456 | fail: |
| 457 | /* XXX fix */ |
| 458 | iwi_detach(dev); |
| 459 | return ENXIO; |
| 460 | } |
| 461 | |
| 462 | static int |
| 463 | iwi_detach(device_t dev) |
| 464 | { |
| 465 | struct iwi_softc *sc = device_get_softc(dev); |
| 466 | struct ieee80211com *ic = &sc->sc_ic; |
| 467 | |
| 468 | bus_teardown_intr(dev, sc->irq, sc->sc_ih); |
| 469 | |
| 470 | /* NB: do early to drain any pending tasks */ |
| 471 | ieee80211_draintask(ic, &sc->sc_radiontask); |
| 472 | ieee80211_draintask(ic, &sc->sc_radiofftask); |
| 473 | ieee80211_draintask(ic, &sc->sc_restarttask); |
| 474 | ieee80211_draintask(ic, &sc->sc_disassoctask); |
| 475 | ieee80211_draintask(ic, &sc->sc_monitortask); |
| 476 | |
| 477 | iwi_stop(sc); |
| 478 | |
| 479 | ieee80211_ifdetach(ic); |
| 480 | |
| 481 | iwi_put_firmware(sc); |
| 482 | iwi_release_fw_dma(sc); |
| 483 | |
| 484 | iwi_free_cmd_ring(sc, &sc->cmdq); |
| 485 | iwi_free_tx_ring(sc, &sc->txq[0]); |
| 486 | iwi_free_tx_ring(sc, &sc->txq[1]); |
| 487 | iwi_free_tx_ring(sc, &sc->txq[2]); |
| 488 | iwi_free_tx_ring(sc, &sc->txq[3]); |
| 489 | iwi_free_rx_ring(sc, &sc->rxq); |
| 490 | |
| 491 | bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(sc->irq), sc->irq); |
| 492 | |
| 493 | bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(sc->mem), |
| 494 | sc->mem); |
| 495 | |
| 496 | #if defined(__DragonFly__) |
| 497 | devfs_clone_bitmap_uninit(&sc->sc_unr); |
| 498 | #else |
| 499 | delete_unrhdr(sc->sc_unr); |
| 500 | #endif |
| 501 | mbufq_drain(&sc->sc_snd); |
| 502 | |
| 503 | IWI_LOCK_DESTROY(sc); |
| 504 | |
| 505 | return 0; |
| 506 | } |
| 507 | |
| 508 | static struct ieee80211vap * |
| 509 | iwi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, |
| 510 | enum ieee80211_opmode opmode, int flags, |
| 511 | const uint8_t bssid[IEEE80211_ADDR_LEN], |
| 512 | const uint8_t mac[IEEE80211_ADDR_LEN]) |
| 513 | { |
| 514 | struct iwi_softc *sc = ic->ic_softc; |
| 515 | struct iwi_vap *ivp; |
| 516 | struct ieee80211vap *vap; |
| 517 | int i; |
| 518 | |
| 519 | if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ |
| 520 | return NULL; |
| 521 | /* |
| 522 | * Get firmware image (and possibly dma memory) on mode change. |
| 523 | */ |
| 524 | if (iwi_get_firmware(sc, opmode)) |
| 525 | return NULL; |
| 526 | /* allocate DMA memory for mapping firmware image */ |
| 527 | i = sc->fw_fw.size; |
| 528 | if (sc->fw_boot.size > i) |
| 529 | i = sc->fw_boot.size; |
| 530 | /* XXX do we dma the ucode as well ? */ |
| 531 | if (sc->fw_uc.size > i) |
| 532 | i = sc->fw_uc.size; |
| 533 | if (iwi_init_fw_dma(sc, i)) |
| 534 | return NULL; |
| 535 | |
| 536 | ivp = kmalloc(sizeof(struct iwi_vap), M_80211_VAP, M_WAITOK | M_ZERO); |
| 537 | vap = &ivp->iwi_vap; |
| 538 | ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); |
| 539 | /* override the default, the setting comes from the linux driver */ |
| 540 | vap->iv_bmissthreshold = 24; |
| 541 | /* override with driver methods */ |
| 542 | ivp->iwi_newstate = vap->iv_newstate; |
| 543 | vap->iv_newstate = iwi_newstate; |
| 544 | |
| 545 | /* complete setup */ |
| 546 | ieee80211_vap_attach(vap, ieee80211_media_change, iwi_media_status, |
| 547 | mac); |
| 548 | ic->ic_opmode = opmode; |
| 549 | return vap; |
| 550 | } |
| 551 | |
| 552 | static void |
| 553 | iwi_vap_delete(struct ieee80211vap *vap) |
| 554 | { |
| 555 | struct iwi_vap *ivp = IWI_VAP(vap); |
| 556 | |
| 557 | ieee80211_vap_detach(vap); |
| 558 | kfree(ivp, M_80211_VAP); |
| 559 | } |
| 560 | |
| 561 | static void |
| 562 | iwi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) |
| 563 | { |
| 564 | if (error != 0) |
| 565 | return; |
| 566 | |
| 567 | KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); |
| 568 | |
| 569 | *(bus_addr_t *)arg = segs[0].ds_addr; |
| 570 | } |
| 571 | |
| 572 | static int |
| 573 | iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, int count) |
| 574 | { |
| 575 | int error; |
| 576 | |
| 577 | ring->count = count; |
| 578 | ring->queued = 0; |
| 579 | ring->cur = ring->next = 0; |
| 580 | |
| 581 | #if defined(__DragonFly__) |
| 582 | error = bus_dma_tag_create(NULL, 4, 0, |
| 583 | BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, |
| 584 | count * IWI_CMD_DESC_SIZE, 1, count * IWI_CMD_DESC_SIZE, |
| 585 | 0 , &ring->desc_dmat); |
| 586 | #else |
| 587 | error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, |
| 588 | BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, |
| 589 | count * IWI_CMD_DESC_SIZE, 1, count * IWI_CMD_DESC_SIZE, 0, |
| 590 | NULL, NULL, &ring->desc_dmat); |
| 591 | #endif |
| 592 | if (error != 0) { |
| 593 | device_printf(sc->sc_dev, "could not create desc DMA tag\n"); |
| 594 | goto fail; |
| 595 | } |
| 596 | |
| 597 | error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, |
| 598 | BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); |
| 599 | if (error != 0) { |
| 600 | device_printf(sc->sc_dev, "could not allocate DMA memory\n"); |
| 601 | goto fail; |
| 602 | } |
| 603 | |
| 604 | error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, |
| 605 | count * IWI_CMD_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); |
| 606 | if (error != 0) { |
| 607 | device_printf(sc->sc_dev, "could not load desc DMA map\n"); |
| 608 | goto fail; |
| 609 | } |
| 610 | |
| 611 | return 0; |
| 612 | |
| 613 | fail: iwi_free_cmd_ring(sc, ring); |
| 614 | return error; |
| 615 | } |
| 616 | |
| 617 | static void |
| 618 | iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) |
| 619 | { |
| 620 | ring->queued = 0; |
| 621 | ring->cur = ring->next = 0; |
| 622 | } |
| 623 | |
| 624 | static void |
| 625 | iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) |
| 626 | { |
| 627 | if (ring->desc != NULL) { |
| 628 | bus_dmamap_sync(ring->desc_dmat, ring->desc_map, |
| 629 | BUS_DMASYNC_POSTWRITE); |
| 630 | bus_dmamap_unload(ring->desc_dmat, ring->desc_map); |
| 631 | bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); |
| 632 | } |
| 633 | |
| 634 | if (ring->desc_dmat != NULL) |
| 635 | bus_dma_tag_destroy(ring->desc_dmat); |
| 636 | } |
| 637 | |
| 638 | static int |
| 639 | iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, int count, |
| 640 | bus_addr_t csr_ridx, bus_addr_t csr_widx) |
| 641 | { |
| 642 | int i, error; |
| 643 | |
| 644 | ring->count = count; |
| 645 | ring->queued = 0; |
| 646 | ring->cur = ring->next = 0; |
| 647 | ring->csr_ridx = csr_ridx; |
| 648 | ring->csr_widx = csr_widx; |
| 649 | |
| 650 | #if defined(__DragonFly__) |
| 651 | error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, |
| 652 | BUS_SPACE_MAXADDR, count * IWI_TX_DESC_SIZE, 1, |
| 653 | count * IWI_TX_DESC_SIZE, 0, &ring->desc_dmat); |
| 654 | #else |
| 655 | error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, |
| 656 | BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, |
| 657 | count * IWI_TX_DESC_SIZE, 1, count * IWI_TX_DESC_SIZE, 0, NULL, |
| 658 | NULL, &ring->desc_dmat); |
| 659 | #endif |
| 660 | if (error != 0) { |
| 661 | device_printf(sc->sc_dev, "could not create desc DMA tag\n"); |
| 662 | goto fail; |
| 663 | } |
| 664 | |
| 665 | error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, |
| 666 | BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); |
| 667 | if (error != 0) { |
| 668 | device_printf(sc->sc_dev, "could not allocate DMA memory\n"); |
| 669 | goto fail; |
| 670 | } |
| 671 | |
| 672 | error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, |
| 673 | count * IWI_TX_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); |
| 674 | if (error != 0) { |
| 675 | device_printf(sc->sc_dev, "could not load desc DMA map\n"); |
| 676 | goto fail; |
| 677 | } |
| 678 | |
| 679 | ring->data = kmalloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, |
| 680 | M_WAITOK | M_ZERO); |
| 681 | if (ring->data == NULL) { |
| 682 | device_printf(sc->sc_dev, "could not allocate soft data\n"); |
| 683 | error = ENOMEM; |
| 684 | goto fail; |
| 685 | } |
| 686 | |
| 687 | #if defined(__DragonFly__) |
| 688 | error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, |
| 689 | BUS_SPACE_MAXADDR, MCLBYTES, IWI_MAX_NSEG, |
| 690 | MCLBYTES, 0, &ring->data_dmat); |
| 691 | #else |
| 692 | error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, |
| 693 | BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, |
| 694 | IWI_MAX_NSEG, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); |
| 695 | #endif |
| 696 | if (error != 0) { |
| 697 | device_printf(sc->sc_dev, "could not create data DMA tag\n"); |
| 698 | goto fail; |
| 699 | } |
| 700 | |
| 701 | for (i = 0; i < count; i++) { |
| 702 | error = bus_dmamap_create(ring->data_dmat, 0, |
| 703 | &ring->data[i].map); |
| 704 | if (error != 0) { |
| 705 | device_printf(sc->sc_dev, "could not create DMA map\n"); |
| 706 | goto fail; |
| 707 | } |
| 708 | } |
| 709 | |
| 710 | return 0; |
| 711 | |
| 712 | fail: iwi_free_tx_ring(sc, ring); |
| 713 | return error; |
| 714 | } |
| 715 | |
| 716 | static void |
| 717 | iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) |
| 718 | { |
| 719 | struct iwi_tx_data *data; |
| 720 | int i; |
| 721 | |
| 722 | for (i = 0; i < ring->count; i++) { |
| 723 | data = &ring->data[i]; |
| 724 | |
| 725 | if (data->m != NULL) { |
| 726 | bus_dmamap_sync(ring->data_dmat, data->map, |
| 727 | BUS_DMASYNC_POSTWRITE); |
| 728 | bus_dmamap_unload(ring->data_dmat, data->map); |
| 729 | m_freem(data->m); |
| 730 | data->m = NULL; |
| 731 | } |
| 732 | |
| 733 | if (data->ni != NULL) { |
| 734 | ieee80211_free_node(data->ni); |
| 735 | data->ni = NULL; |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | ring->queued = 0; |
| 740 | ring->cur = ring->next = 0; |
| 741 | } |
| 742 | |
| 743 | static void |
| 744 | iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) |
| 745 | { |
| 746 | struct iwi_tx_data *data; |
| 747 | int i; |
| 748 | |
| 749 | if (ring->desc != NULL) { |
| 750 | bus_dmamap_sync(ring->desc_dmat, ring->desc_map, |
| 751 | BUS_DMASYNC_POSTWRITE); |
| 752 | bus_dmamap_unload(ring->desc_dmat, ring->desc_map); |
| 753 | bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); |
| 754 | } |
| 755 | |
| 756 | if (ring->desc_dmat != NULL) |
| 757 | bus_dma_tag_destroy(ring->desc_dmat); |
| 758 | |
| 759 | if (ring->data != NULL) { |
| 760 | for (i = 0; i < ring->count; i++) { |
| 761 | data = &ring->data[i]; |
| 762 | |
| 763 | if (data->m != NULL) { |
| 764 | bus_dmamap_sync(ring->data_dmat, data->map, |
| 765 | BUS_DMASYNC_POSTWRITE); |
| 766 | bus_dmamap_unload(ring->data_dmat, data->map); |
| 767 | m_freem(data->m); |
| 768 | } |
| 769 | |
| 770 | if (data->ni != NULL) |
| 771 | ieee80211_free_node(data->ni); |
| 772 | |
| 773 | if (data->map != NULL) |
| 774 | bus_dmamap_destroy(ring->data_dmat, data->map); |
| 775 | } |
| 776 | |
| 777 | kfree(ring->data, M_DEVBUF); |
| 778 | } |
| 779 | |
| 780 | if (ring->data_dmat != NULL) |
| 781 | bus_dma_tag_destroy(ring->data_dmat); |
| 782 | } |
| 783 | |
| 784 | static int |
| 785 | iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) |
| 786 | { |
| 787 | struct iwi_rx_data *data; |
| 788 | int i, error; |
| 789 | |
| 790 | ring->count = count; |
| 791 | ring->cur = 0; |
| 792 | |
| 793 | ring->data = kmalloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, |
| 794 | M_WAITOK | M_ZERO); |
| 795 | if (ring->data == NULL) { |
| 796 | device_printf(sc->sc_dev, "could not allocate soft data\n"); |
| 797 | error = ENOMEM; |
| 798 | goto fail; |
| 799 | } |
| 800 | |
| 801 | #if defined(__DragonFly__) |
| 802 | error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, |
| 803 | BUS_SPACE_MAXADDR, MCLBYTES, 1, MCLBYTES, |
| 804 | 0, &ring->data_dmat); |
| 805 | #else |
| 806 | error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, |
| 807 | BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, |
| 808 | 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); |
| 809 | #endif |
| 810 | if (error != 0) { |
| 811 | device_printf(sc->sc_dev, "could not create data DMA tag\n"); |
| 812 | goto fail; |
| 813 | } |
| 814 | |
| 815 | for (i = 0; i < count; i++) { |
| 816 | data = &ring->data[i]; |
| 817 | |
| 818 | error = bus_dmamap_create(ring->data_dmat, 0, &data->map); |
| 819 | if (error != 0) { |
| 820 | device_printf(sc->sc_dev, "could not create DMA map\n"); |
| 821 | goto fail; |
| 822 | } |
| 823 | |
| 824 | data->m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); |
| 825 | if (data->m == NULL) { |
| 826 | device_printf(sc->sc_dev, |
| 827 | "could not allocate rx mbuf\n"); |
| 828 | error = ENOMEM; |
| 829 | goto fail; |
| 830 | } |
| 831 | |
| 832 | error = bus_dmamap_load(ring->data_dmat, data->map, |
| 833 | mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, |
| 834 | &data->physaddr, 0); |
| 835 | if (error != 0) { |
| 836 | device_printf(sc->sc_dev, |
| 837 | "could not load rx buf DMA map"); |
| 838 | goto fail; |
| 839 | } |
| 840 | |
| 841 | data->reg = IWI_CSR_RX_BASE + i * 4; |
| 842 | } |
| 843 | |
| 844 | return 0; |
| 845 | |
| 846 | fail: iwi_free_rx_ring(sc, ring); |
| 847 | return error; |
| 848 | } |
| 849 | |
| 850 | static void |
| 851 | iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) |
| 852 | { |
| 853 | ring->cur = 0; |
| 854 | } |
| 855 | |
| 856 | static void |
| 857 | iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) |
| 858 | { |
| 859 | struct iwi_rx_data *data; |
| 860 | int i; |
| 861 | |
| 862 | if (ring->data != NULL) { |
| 863 | for (i = 0; i < ring->count; i++) { |
| 864 | data = &ring->data[i]; |
| 865 | |
| 866 | if (data->m != NULL) { |
| 867 | bus_dmamap_sync(ring->data_dmat, data->map, |
| 868 | BUS_DMASYNC_POSTREAD); |
| 869 | bus_dmamap_unload(ring->data_dmat, data->map); |
| 870 | m_freem(data->m); |
| 871 | } |
| 872 | |
| 873 | if (data->map != NULL) |
| 874 | bus_dmamap_destroy(ring->data_dmat, data->map); |
| 875 | } |
| 876 | |
| 877 | kfree(ring->data, M_DEVBUF); |
| 878 | } |
| 879 | |
| 880 | if (ring->data_dmat != NULL) |
| 881 | bus_dma_tag_destroy(ring->data_dmat); |
| 882 | } |
| 883 | |
| 884 | static int |
| 885 | iwi_shutdown(device_t dev) |
| 886 | { |
| 887 | struct iwi_softc *sc = device_get_softc(dev); |
| 888 | |
| 889 | iwi_stop(sc); |
| 890 | iwi_put_firmware(sc); /* ??? XXX */ |
| 891 | |
| 892 | return 0; |
| 893 | } |
| 894 | |
| 895 | static int |
| 896 | iwi_suspend(device_t dev) |
| 897 | { |
| 898 | struct iwi_softc *sc = device_get_softc(dev); |
| 899 | struct ieee80211com *ic = &sc->sc_ic; |
| 900 | |
| 901 | ieee80211_suspend_all(ic); |
| 902 | return 0; |
| 903 | } |
| 904 | |
| 905 | static int |
| 906 | iwi_resume(device_t dev) |
| 907 | { |
| 908 | struct iwi_softc *sc = device_get_softc(dev); |
| 909 | struct ieee80211com *ic = &sc->sc_ic; |
| 910 | |
| 911 | pci_write_config(dev, 0x41, 0, 1); |
| 912 | |
| 913 | ieee80211_resume_all(ic); |
| 914 | return 0; |
| 915 | } |
| 916 | |
| 917 | static struct ieee80211_node * |
| 918 | iwi_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) |
| 919 | { |
| 920 | struct iwi_node *in; |
| 921 | |
| 922 | in = kmalloc(sizeof (struct iwi_node), M_80211_NODE, M_INTWAIT | M_ZERO); |
| 923 | if (in == NULL) |
| 924 | return NULL; |
| 925 | /* XXX assign sta table entry for adhoc */ |
| 926 | in->in_station = -1; |
| 927 | |
| 928 | return &in->in_node; |
| 929 | } |
| 930 | |
| 931 | static void |
| 932 | iwi_node_free(struct ieee80211_node *ni) |
| 933 | { |
| 934 | struct ieee80211com *ic = ni->ni_ic; |
| 935 | struct iwi_softc *sc = ic->ic_softc; |
| 936 | struct iwi_node *in = (struct iwi_node *)ni; |
| 937 | |
| 938 | if (in->in_station != -1) { |
| 939 | #if defined(__DragonFly__) |
| 940 | DPRINTF(("%s mac %s station %u\n", __func__, |
| 941 | ether_sprintf(ni->ni_macaddr), in->in_station)); |
| 942 | #else |
| 943 | DPRINTF(("%s mac %6D station %u\n", __func__, |
| 944 | ni->ni_macaddr, ":", in->in_station)); |
| 945 | #endif |
| 946 | #if defined(__DragonFly__) |
| 947 | devfs_clone_bitmap_put(&sc->sc_unr, in->in_station); |
| 948 | #else |
| 949 | free_unr(sc->sc_unr, in->in_station); |
| 950 | #endif |
| 951 | } |
| 952 | |
| 953 | sc->sc_node_free(ni); |
| 954 | } |
| 955 | |
| 956 | /* |
| 957 | * Convert h/w rate code to IEEE rate code. |
| 958 | */ |
| 959 | static int |
| 960 | iwi_cvtrate(int iwirate) |
| 961 | { |
| 962 | switch (iwirate) { |
| 963 | case IWI_RATE_DS1: return 2; |
| 964 | case IWI_RATE_DS2: return 4; |
| 965 | case IWI_RATE_DS5: return 11; |
| 966 | case IWI_RATE_DS11: return 22; |
| 967 | case IWI_RATE_OFDM6: return 12; |
| 968 | case IWI_RATE_OFDM9: return 18; |
| 969 | case IWI_RATE_OFDM12: return 24; |
| 970 | case IWI_RATE_OFDM18: return 36; |
| 971 | case IWI_RATE_OFDM24: return 48; |
| 972 | case IWI_RATE_OFDM36: return 72; |
| 973 | case IWI_RATE_OFDM48: return 96; |
| 974 | case IWI_RATE_OFDM54: return 108; |
| 975 | } |
| 976 | return 0; |
| 977 | } |
| 978 | |
| 979 | /* |
| 980 | * The firmware automatically adapts the transmit speed. We report its current |
| 981 | * value here. |
| 982 | */ |
| 983 | static void |
| 984 | iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) |
| 985 | { |
| 986 | struct ieee80211vap *vap = ifp->if_softc; |
| 987 | struct ieee80211com *ic = vap->iv_ic; |
| 988 | struct iwi_softc *sc = ic->ic_softc; |
| 989 | struct ieee80211_node *ni; |
| 990 | |
| 991 | /* read current transmission rate from adapter */ |
| 992 | ni = ieee80211_ref_node(vap->iv_bss); |
| 993 | ni->ni_txrate = |
| 994 | iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); |
| 995 | ieee80211_free_node(ni); |
| 996 | ieee80211_media_status(ifp, imr); |
| 997 | } |
| 998 | |
| 999 | static int |
| 1000 | iwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) |
| 1001 | { |
| 1002 | struct iwi_vap *ivp = IWI_VAP(vap); |
| 1003 | struct ieee80211com *ic = vap->iv_ic; |
| 1004 | struct iwi_softc *sc = ic->ic_softc; |
| 1005 | IWI_LOCK_DECL; |
| 1006 | |
| 1007 | DPRINTF(("%s: %s -> %s flags 0x%x\n", __func__, |
| 1008 | ieee80211_state_name[vap->iv_state], |
| 1009 | ieee80211_state_name[nstate], sc->flags)); |
| 1010 | |
| 1011 | IEEE80211_UNLOCK(ic); |
| 1012 | IWI_LOCK(sc); |
| 1013 | switch (nstate) { |
| 1014 | case IEEE80211_S_INIT: |
| 1015 | /* |
| 1016 | * NB: don't try to do this if iwi_stop_master has |
| 1017 | * shutdown the firmware and disabled interrupts. |
| 1018 | */ |
| 1019 | if (vap->iv_state == IEEE80211_S_RUN && |
| 1020 | (sc->flags & IWI_FLAG_FW_INITED)) |
| 1021 | iwi_disassociate(sc, 0); |
| 1022 | break; |
| 1023 | case IEEE80211_S_AUTH: |
| 1024 | iwi_auth_and_assoc(sc, vap); |
| 1025 | break; |
| 1026 | case IEEE80211_S_RUN: |
| 1027 | if (vap->iv_opmode == IEEE80211_M_IBSS && |
| 1028 | vap->iv_state == IEEE80211_S_SCAN) { |
| 1029 | /* |
| 1030 | * XXX when joining an ibss network we are called |
| 1031 | * with a SCAN -> RUN transition on scan complete. |
| 1032 | * Use that to call iwi_auth_and_assoc. On completing |
| 1033 | * the join we are then called again with an |
| 1034 | * AUTH -> RUN transition and we want to do nothing. |
| 1035 | * This is all totally bogus and needs to be redone. |
| 1036 | */ |
| 1037 | iwi_auth_and_assoc(sc, vap); |
| 1038 | } else if (vap->iv_opmode == IEEE80211_M_MONITOR) |
| 1039 | ieee80211_runtask(ic, &sc->sc_monitortask); |
| 1040 | break; |
| 1041 | case IEEE80211_S_ASSOC: |
| 1042 | /* |
| 1043 | * If we are transitioning from AUTH then just wait |
| 1044 | * for the ASSOC status to come back from the firmware. |
| 1045 | * Otherwise we need to issue the association request. |
| 1046 | */ |
| 1047 | if (vap->iv_state == IEEE80211_S_AUTH) |
| 1048 | break; |
| 1049 | iwi_auth_and_assoc(sc, vap); |
| 1050 | break; |
| 1051 | default: |
| 1052 | break; |
| 1053 | } |
| 1054 | IWI_UNLOCK(sc); |
| 1055 | IEEE80211_LOCK(ic); |
| 1056 | return ivp->iwi_newstate(vap, nstate, arg); |
| 1057 | } |
| 1058 | |
| 1059 | /* |
| 1060 | * WME parameters coming from IEEE 802.11e specification. These values are |
| 1061 | * already declared in ieee80211_proto.c, but they are static so they can't |
| 1062 | * be reused here. |
| 1063 | */ |
| 1064 | static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { |
| 1065 | { 0, 3, 5, 7, 0 }, /* WME_AC_BE */ |
| 1066 | { 0, 3, 5, 10, 0 }, /* WME_AC_BK */ |
| 1067 | { 0, 2, 4, 5, 188 }, /* WME_AC_VI */ |
| 1068 | { 0, 2, 3, 4, 102 } /* WME_AC_VO */ |
| 1069 | }; |
| 1070 | |
| 1071 | static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { |
| 1072 | { 0, 3, 4, 6, 0 }, /* WME_AC_BE */ |
| 1073 | { 0, 3, 4, 10, 0 }, /* WME_AC_BK */ |
| 1074 | { 0, 2, 3, 4, 94 }, /* WME_AC_VI */ |
| 1075 | { 0, 2, 2, 3, 47 } /* WME_AC_VO */ |
| 1076 | }; |
| 1077 | #define IWI_EXP2(v) htole16((1 << (v)) - 1) |
| 1078 | #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) |
| 1079 | |
| 1080 | static void |
| 1081 | iwi_wme_init(struct iwi_softc *sc) |
| 1082 | { |
| 1083 | const struct wmeParams *wmep; |
| 1084 | int ac; |
| 1085 | |
| 1086 | memset(sc->wme, 0, sizeof sc->wme); |
| 1087 | for (ac = 0; ac < WME_NUM_AC; ac++) { |
| 1088 | /* set WME values for CCK modulation */ |
| 1089 | wmep = &iwi_wme_cck_params[ac]; |
| 1090 | sc->wme[1].aifsn[ac] = wmep->wmep_aifsn; |
| 1091 | sc->wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); |
| 1092 | sc->wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); |
| 1093 | sc->wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); |
| 1094 | sc->wme[1].acm[ac] = wmep->wmep_acm; |
| 1095 | |
| 1096 | /* set WME values for OFDM modulation */ |
| 1097 | wmep = &iwi_wme_ofdm_params[ac]; |
| 1098 | sc->wme[2].aifsn[ac] = wmep->wmep_aifsn; |
| 1099 | sc->wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); |
| 1100 | sc->wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); |
| 1101 | sc->wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); |
| 1102 | sc->wme[2].acm[ac] = wmep->wmep_acm; |
| 1103 | } |
| 1104 | } |
| 1105 | |
| 1106 | static int |
| 1107 | iwi_wme_setparams(struct iwi_softc *sc) |
| 1108 | { |
| 1109 | struct ieee80211com *ic = &sc->sc_ic; |
| 1110 | const struct wmeParams *wmep; |
| 1111 | int ac; |
| 1112 | |
| 1113 | for (ac = 0; ac < WME_NUM_AC; ac++) { |
| 1114 | /* set WME values for current operating mode */ |
| 1115 | wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; |
| 1116 | sc->wme[0].aifsn[ac] = wmep->wmep_aifsn; |
| 1117 | sc->wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); |
| 1118 | sc->wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); |
| 1119 | sc->wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); |
| 1120 | sc->wme[0].acm[ac] = wmep->wmep_acm; |
| 1121 | } |
| 1122 | |
| 1123 | DPRINTF(("Setting WME parameters\n")); |
| 1124 | return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, sc->wme, sizeof sc->wme); |
| 1125 | } |
| 1126 | #undef IWI_USEC |
| 1127 | #undef IWI_EXP2 |
| 1128 | |
| 1129 | static int |
| 1130 | iwi_wme_update(struct ieee80211com *ic) |
| 1131 | { |
| 1132 | struct iwi_softc *sc = ic->ic_softc; |
| 1133 | struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); |
| 1134 | IWI_LOCK_DECL; |
| 1135 | |
| 1136 | /* |
| 1137 | * We may be called to update the WME parameters in |
| 1138 | * the adapter at various places. If we're already |
| 1139 | * associated then initiate the request immediately; |
| 1140 | * otherwise we assume the params will get sent down |
| 1141 | * to the adapter as part of the work iwi_auth_and_assoc |
| 1142 | * does. |
| 1143 | */ |
| 1144 | if (vap->iv_state == IEEE80211_S_RUN) { |
| 1145 | IWI_LOCK(sc); |
| 1146 | iwi_wme_setparams(sc); |
| 1147 | IWI_UNLOCK(sc); |
| 1148 | } |
| 1149 | return (0); |
| 1150 | } |
| 1151 | |
| 1152 | static int |
| 1153 | iwi_wme_setie(struct iwi_softc *sc) |
| 1154 | { |
| 1155 | struct ieee80211_wme_info wme; |
| 1156 | |
| 1157 | memset(&wme, 0, sizeof wme); |
| 1158 | wme.wme_id = IEEE80211_ELEMID_VENDOR; |
| 1159 | wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; |
| 1160 | wme.wme_oui[0] = 0x00; |
| 1161 | wme.wme_oui[1] = 0x50; |
| 1162 | wme.wme_oui[2] = 0xf2; |
| 1163 | wme.wme_type = WME_OUI_TYPE; |
| 1164 | wme.wme_subtype = WME_INFO_OUI_SUBTYPE; |
| 1165 | wme.wme_version = WME_VERSION; |
| 1166 | wme.wme_info = 0; |
| 1167 | |
| 1168 | DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); |
| 1169 | return iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme); |
| 1170 | } |
| 1171 | |
| 1172 | /* |
| 1173 | * Read 16 bits at address 'addr' from the serial EEPROM. |
| 1174 | */ |
| 1175 | static uint16_t |
| 1176 | iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) |
| 1177 | { |
| 1178 | uint32_t tmp; |
| 1179 | uint16_t val; |
| 1180 | int n; |
| 1181 | |
| 1182 | /* clock C once before the first command */ |
| 1183 | IWI_EEPROM_CTL(sc, 0); |
| 1184 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S); |
| 1185 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); |
| 1186 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S); |
| 1187 | |
| 1188 | /* write start bit (1) */ |
| 1189 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); |
| 1190 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); |
| 1191 | |
| 1192 | /* write READ opcode (10) */ |
| 1193 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); |
| 1194 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); |
| 1195 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S); |
| 1196 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); |
| 1197 | |
| 1198 | /* write address A7-A0 */ |
| 1199 | for (n = 7; n >= 0; n--) { |
| 1200 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | |
| 1201 | (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); |
| 1202 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | |
| 1203 | (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); |
| 1204 | } |
| 1205 | |
| 1206 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S); |
| 1207 | |
| 1208 | /* read data Q15-Q0 */ |
| 1209 | val = 0; |
| 1210 | for (n = 15; n >= 0; n--) { |
| 1211 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); |
| 1212 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S); |
| 1213 | tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); |
| 1214 | val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; |
| 1215 | } |
| 1216 | |
| 1217 | IWI_EEPROM_CTL(sc, 0); |
| 1218 | |
| 1219 | /* clear Chip Select and clock C */ |
| 1220 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S); |
| 1221 | IWI_EEPROM_CTL(sc, 0); |
| 1222 | IWI_EEPROM_CTL(sc, IWI_EEPROM_C); |
| 1223 | |
| 1224 | return val; |
| 1225 | } |
| 1226 | |
| 1227 | static void |
| 1228 | iwi_setcurchan(struct iwi_softc *sc, int chan) |
| 1229 | { |
| 1230 | struct ieee80211com *ic = &sc->sc_ic; |
| 1231 | |
| 1232 | sc->curchan = chan; |
| 1233 | ieee80211_radiotap_chan_change(ic); |
| 1234 | } |
| 1235 | |
| 1236 | static void |
| 1237 | iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, |
| 1238 | struct iwi_frame *frame) |
| 1239 | { |
| 1240 | struct ieee80211com *ic = &sc->sc_ic; |
| 1241 | struct mbuf *mnew, *m; |
| 1242 | struct ieee80211_node *ni; |
| 1243 | int type, error, framelen; |
| 1244 | int8_t rssi, nf; |
| 1245 | IWI_LOCK_DECL; |
| 1246 | |
| 1247 | framelen = le16toh(frame->len); |
| 1248 | if (framelen < IEEE80211_MIN_LEN || framelen > MCLBYTES) { |
| 1249 | /* |
| 1250 | * XXX >MCLBYTES is bogus as it means the h/w dma'd |
| 1251 | * out of bounds; need to figure out how to limit |
| 1252 | * frame size in the firmware |
| 1253 | */ |
| 1254 | /* XXX stat */ |
| 1255 | DPRINTFN(1, |
| 1256 | ("drop rx frame len=%u chan=%u rssi=%u rssi_dbm=%u\n", |
| 1257 | le16toh(frame->len), frame->chan, frame->rssi, |
| 1258 | frame->rssi_dbm)); |
| 1259 | return; |
| 1260 | } |
| 1261 | |
| 1262 | DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u rssi_dbm=%u\n", |
| 1263 | le16toh(frame->len), frame->chan, frame->rssi, frame->rssi_dbm)); |
| 1264 | |
| 1265 | if (frame->chan != sc->curchan) |
| 1266 | iwi_setcurchan(sc, frame->chan); |
| 1267 | |
| 1268 | /* |
| 1269 | * Try to allocate a new mbuf for this ring element and load it before |
| 1270 | * processing the current mbuf. If the ring element cannot be loaded, |
| 1271 | * drop the received packet and reuse the old mbuf. In the unlikely |
| 1272 | * case that the old mbuf can't be reloaded either, explicitly panic. |
| 1273 | */ |
| 1274 | mnew = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); |
| 1275 | if (mnew == NULL) { |
| 1276 | #if defined(__DragonFly__) |
| 1277 | ++ic->ic_ierrors; |
| 1278 | #else |
| 1279 | counter_u64_add(ic->ic_ierrors, 1); |
| 1280 | #endif |
| 1281 | return; |
| 1282 | } |
| 1283 | |
| 1284 | bus_dmamap_unload(sc->rxq.data_dmat, data->map); |
| 1285 | |
| 1286 | error = bus_dmamap_load(sc->rxq.data_dmat, data->map, |
| 1287 | mtod(mnew, void *), MCLBYTES, iwi_dma_map_addr, &data->physaddr, |
| 1288 | 0); |
| 1289 | if (error != 0) { |
| 1290 | m_freem(mnew); |
| 1291 | |
| 1292 | /* try to reload the old mbuf */ |
| 1293 | error = bus_dmamap_load(sc->rxq.data_dmat, data->map, |
| 1294 | mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, |
| 1295 | &data->physaddr, 0); |
| 1296 | if (error != 0) { |
| 1297 | /* very unlikely that it will fail... */ |
| 1298 | panic("%s: could not load old rx mbuf", |
| 1299 | device_get_name(sc->sc_dev)); |
| 1300 | } |
| 1301 | #if defined(__DragonFly__) |
| 1302 | ++ic->ic_ierrors; |
| 1303 | #else |
| 1304 | counter_u64_add(ic->ic_ierrors, 1); |
| 1305 | #endif |
| 1306 | return; |
| 1307 | } |
| 1308 | |
| 1309 | /* |
| 1310 | * New mbuf successfully loaded, update Rx ring and continue |
| 1311 | * processing. |
| 1312 | */ |
| 1313 | m = data->m; |
| 1314 | data->m = mnew; |
| 1315 | CSR_WRITE_4(sc, data->reg, data->physaddr); |
| 1316 | |
| 1317 | /* finalize mbuf */ |
| 1318 | m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + |
| 1319 | sizeof (struct iwi_frame) + framelen; |
| 1320 | |
| 1321 | m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); |
| 1322 | |
| 1323 | rssi = frame->rssi_dbm; |
| 1324 | nf = -95; |
| 1325 | if (ieee80211_radiotap_active(ic)) { |
| 1326 | struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; |
| 1327 | |
| 1328 | tap->wr_flags = 0; |
| 1329 | tap->wr_antsignal = rssi; |
| 1330 | tap->wr_antnoise = nf; |
| 1331 | tap->wr_rate = iwi_cvtrate(frame->rate); |
| 1332 | tap->wr_antenna = frame->antenna; |
| 1333 | } |
| 1334 | IWI_UNLOCK(sc); |
| 1335 | |
| 1336 | ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); |
| 1337 | if (ni != NULL) { |
| 1338 | type = ieee80211_input(ni, m, rssi, nf); |
| 1339 | ieee80211_free_node(ni); |
| 1340 | } else |
| 1341 | type = ieee80211_input_all(ic, m, rssi, nf); |
| 1342 | |
| 1343 | IWI_LOCK(sc); |
| 1344 | if (sc->sc_softled) { |
| 1345 | /* |
| 1346 | * Blink for any data frame. Otherwise do a |
| 1347 | * heartbeat-style blink when idle. The latter |
| 1348 | * is mainly for station mode where we depend on |
| 1349 | * periodic beacon frames to trigger the poll event. |
| 1350 | */ |
| 1351 | if (type == IEEE80211_FC0_TYPE_DATA) { |
| 1352 | sc->sc_rxrate = frame->rate; |
| 1353 | iwi_led_event(sc, IWI_LED_RX); |
| 1354 | } else if (ticks - sc->sc_ledevent >= sc->sc_ledidle) |
| 1355 | iwi_led_event(sc, IWI_LED_POLL); |
| 1356 | } |
| 1357 | } |
| 1358 | |
| 1359 | /* |
| 1360 | * Check for an association response frame to see if QoS |
| 1361 | * has been negotiated. We parse just enough to figure |
| 1362 | * out if we're supposed to use QoS. The proper solution |
| 1363 | * is to pass the frame up so ieee80211_input can do the |
| 1364 | * work but that's made hard by how things currently are |
| 1365 | * done in the driver. |
| 1366 | */ |
| 1367 | static void |
| 1368 | iwi_checkforqos(struct ieee80211vap *vap, |
| 1369 | const struct ieee80211_frame *wh, int len) |
| 1370 | { |
| 1371 | #define SUBTYPE(wh) ((wh)->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) |
| 1372 | const uint8_t *frm, *efrm, *wme; |
| 1373 | struct ieee80211_node *ni; |
| 1374 | uint16_t capinfo, status, associd; |
| 1375 | |
| 1376 | /* NB: +8 for capinfo, status, associd, and first ie */ |
| 1377 | if (!(sizeof(*wh)+8 < len && len < IEEE80211_MAX_LEN) || |
| 1378 | SUBTYPE(wh) != IEEE80211_FC0_SUBTYPE_ASSOC_RESP) |
| 1379 | return; |
| 1380 | /* |
| 1381 | * asresp frame format |
| 1382 | * [2] capability information |
| 1383 | * [2] status |
| 1384 | * [2] association ID |
| 1385 | * [tlv] supported rates |
| 1386 | * [tlv] extended supported rates |
| 1387 | * [tlv] WME |
| 1388 | */ |
| 1389 | frm = (const uint8_t *)&wh[1]; |
| 1390 | efrm = ((const uint8_t *) wh) + len; |
| 1391 | |
| 1392 | capinfo = le16toh(*(const uint16_t *)frm); |
| 1393 | frm += 2; |
| 1394 | status = le16toh(*(const uint16_t *)frm); |
| 1395 | frm += 2; |
| 1396 | associd = le16toh(*(const uint16_t *)frm); |
| 1397 | frm += 2; |
| 1398 | |
| 1399 | wme = NULL; |
| 1400 | while (efrm - frm > 1) { |
| 1401 | IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return); |
| 1402 | switch (*frm) { |
| 1403 | case IEEE80211_ELEMID_VENDOR: |
| 1404 | if (iswmeoui(frm)) |
| 1405 | wme = frm; |
| 1406 | break; |
| 1407 | } |
| 1408 | frm += frm[1] + 2; |
| 1409 | } |
| 1410 | |
| 1411 | ni = ieee80211_ref_node(vap->iv_bss); |
| 1412 | ni->ni_capinfo = capinfo; |
| 1413 | ni->ni_associd = associd & 0x3fff; |
| 1414 | if (wme != NULL) |
| 1415 | ni->ni_flags |= IEEE80211_NODE_QOS; |
| 1416 | else |
| 1417 | ni->ni_flags &= ~IEEE80211_NODE_QOS; |
| 1418 | ieee80211_free_node(ni); |
| 1419 | #undef SUBTYPE |
| 1420 | } |
| 1421 | |
| 1422 | static void |
| 1423 | iwi_notif_link_quality(struct iwi_softc *sc, struct iwi_notif *notif) |
| 1424 | { |
| 1425 | struct iwi_notif_link_quality *lq; |
| 1426 | int len; |
| 1427 | |
| 1428 | len = le16toh(notif->len); |
| 1429 | |
| 1430 | DPRINTFN(5, ("Notification (%u) - len=%d, sizeof=%zu\n", |
| 1431 | notif->type, |
| 1432 | len, |
| 1433 | sizeof(struct iwi_notif_link_quality) |
| 1434 | )); |
| 1435 | |
| 1436 | /* enforce length */ |
| 1437 | if (len != sizeof(struct iwi_notif_link_quality)) { |
| 1438 | DPRINTFN(5, ("Notification: (%u) too short (%d)\n", |
| 1439 | notif->type, |
| 1440 | len)); |
| 1441 | return; |
| 1442 | } |
| 1443 | |
| 1444 | lq = (struct iwi_notif_link_quality *)(notif + 1); |
| 1445 | memcpy(&sc->sc_linkqual, lq, sizeof(sc->sc_linkqual)); |
| 1446 | sc->sc_linkqual_valid = 1; |
| 1447 | } |
| 1448 | |
| 1449 | /* |
| 1450 | * Task queue callbacks for iwi_notification_intr used to avoid LOR's. |
| 1451 | */ |
| 1452 | |
| 1453 | static void |
| 1454 | iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) |
| 1455 | { |
| 1456 | struct ieee80211com *ic = &sc->sc_ic; |
| 1457 | struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); |
| 1458 | struct iwi_notif_scan_channel *chan; |
| 1459 | struct iwi_notif_scan_complete *scan; |
| 1460 | struct iwi_notif_authentication *auth; |
| 1461 | struct iwi_notif_association *assoc; |
| 1462 | struct iwi_notif_beacon_state *beacon; |
| 1463 | |
| 1464 | switch (notif->type) { |
| 1465 | case IWI_NOTIF_TYPE_SCAN_CHANNEL: |
| 1466 | chan = (struct iwi_notif_scan_channel *)(notif + 1); |
| 1467 | |
| 1468 | DPRINTFN(3, ("Scan of channel %u complete (%u)\n", |
| 1469 | ieee80211_ieee2mhz(chan->nchan, 0), chan->nchan)); |
| 1470 | |
| 1471 | /* Reset the timer, the scan is still going */ |
| 1472 | sc->sc_state_timer = 3; |
| 1473 | break; |
| 1474 | |
| 1475 | case IWI_NOTIF_TYPE_SCAN_COMPLETE: |
| 1476 | scan = (struct iwi_notif_scan_complete *)(notif + 1); |
| 1477 | |
| 1478 | DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, |
| 1479 | scan->status)); |
| 1480 | |
| 1481 | IWI_STATE_END(sc, IWI_FW_SCANNING); |
| 1482 | |
| 1483 | /* |
| 1484 | * Monitor mode works by doing a passive scan to set |
| 1485 | * the channel and enable rx. Because we don't want |
| 1486 | * to abort a scan lest the firmware crash we scan |
| 1487 | * for a short period of time and automatically restart |
| 1488 | * the scan when notified the sweep has completed. |
| 1489 | */ |
| 1490 | if (vap->iv_opmode == IEEE80211_M_MONITOR) { |
| 1491 | ieee80211_runtask(ic, &sc->sc_monitortask); |
| 1492 | break; |
| 1493 | } |
| 1494 | |
| 1495 | if (scan->status == IWI_SCAN_COMPLETED) { |
| 1496 | /* NB: don't need to defer, net80211 does it for us */ |
| 1497 | ieee80211_scan_next(vap); |
| 1498 | } |
| 1499 | break; |
| 1500 | |
| 1501 | case IWI_NOTIF_TYPE_AUTHENTICATION: |
| 1502 | auth = (struct iwi_notif_authentication *)(notif + 1); |
| 1503 | switch (auth->state) { |
| 1504 | case IWI_AUTH_SUCCESS: |
| 1505 | DPRINTFN(2, ("Authentication succeeeded\n")); |
| 1506 | ieee80211_new_state(vap, IEEE80211_S_ASSOC, -1); |
| 1507 | break; |
| 1508 | case IWI_AUTH_FAIL: |
| 1509 | /* |
| 1510 | * These are delivered as an unsolicited deauth |
| 1511 | * (e.g. due to inactivity) or in response to an |
| 1512 | * associate request. |
| 1513 | */ |
| 1514 | sc->flags &= ~IWI_FLAG_ASSOCIATED; |
| 1515 | if (vap->iv_state != IEEE80211_S_RUN) { |
| 1516 | DPRINTFN(2, ("Authentication failed\n")); |
| 1517 | vap->iv_stats.is_rx_auth_fail++; |
| 1518 | IWI_STATE_END(sc, IWI_FW_ASSOCIATING); |
| 1519 | } else { |
| 1520 | DPRINTFN(2, ("Deauthenticated\n")); |
| 1521 | vap->iv_stats.is_rx_deauth++; |
| 1522 | } |
| 1523 | ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); |
| 1524 | break; |
| 1525 | case IWI_AUTH_SENT_1: |
| 1526 | case IWI_AUTH_RECV_2: |
| 1527 | case IWI_AUTH_SEQ1_PASS: |
| 1528 | break; |
| 1529 | case IWI_AUTH_SEQ1_FAIL: |
| 1530 | DPRINTFN(2, ("Initial authentication handshake failed; " |
| 1531 | "you probably need shared key\n")); |
| 1532 | vap->iv_stats.is_rx_auth_fail++; |
| 1533 | IWI_STATE_END(sc, IWI_FW_ASSOCIATING); |
| 1534 | /* XXX retry shared key when in auto */ |
| 1535 | break; |
| 1536 | default: |
| 1537 | device_printf(sc->sc_dev, |
| 1538 | "unknown authentication state %u\n", auth->state); |
| 1539 | break; |
| 1540 | } |
| 1541 | break; |
| 1542 | |
| 1543 | case IWI_NOTIF_TYPE_ASSOCIATION: |
| 1544 | assoc = (struct iwi_notif_association *)(notif + 1); |
| 1545 | switch (assoc->state) { |
| 1546 | case IWI_AUTH_SUCCESS: |
| 1547 | /* re-association, do nothing */ |
| 1548 | break; |
| 1549 | case IWI_ASSOC_SUCCESS: |
| 1550 | DPRINTFN(2, ("Association succeeded\n")); |
| 1551 | sc->flags |= IWI_FLAG_ASSOCIATED; |
| 1552 | IWI_STATE_END(sc, IWI_FW_ASSOCIATING); |
| 1553 | iwi_checkforqos(vap, |
| 1554 | (const struct ieee80211_frame *)(assoc+1), |
| 1555 | le16toh(notif->len) - sizeof(*assoc) - 1); |
| 1556 | ieee80211_new_state(vap, IEEE80211_S_RUN, -1); |
| 1557 | break; |
| 1558 | case IWI_ASSOC_INIT: |
| 1559 | sc->flags &= ~IWI_FLAG_ASSOCIATED; |
| 1560 | switch (sc->fw_state) { |
| 1561 | case IWI_FW_ASSOCIATING: |
| 1562 | DPRINTFN(2, ("Association failed\n")); |
| 1563 | IWI_STATE_END(sc, IWI_FW_ASSOCIATING); |
| 1564 | ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); |
| 1565 | break; |
| 1566 | |
| 1567 | case IWI_FW_DISASSOCIATING: |
| 1568 | DPRINTFN(2, ("Dissassociated\n")); |
| 1569 | IWI_STATE_END(sc, IWI_FW_DISASSOCIATING); |
| 1570 | vap->iv_stats.is_rx_disassoc++; |
| 1571 | ieee80211_new_state(vap, IEEE80211_S_SCAN, -1); |
| 1572 | break; |
| 1573 | } |
| 1574 | break; |
| 1575 | default: |
| 1576 | device_printf(sc->sc_dev, |
| 1577 | "unknown association state %u\n", assoc->state); |
| 1578 | break; |
| 1579 | } |
| 1580 | break; |
| 1581 | |
| 1582 | case IWI_NOTIF_TYPE_BEACON: |
| 1583 | /* XXX check struct length */ |
| 1584 | beacon = (struct iwi_notif_beacon_state *)(notif + 1); |
| 1585 | |
| 1586 | DPRINTFN(5, ("Beacon state (%u, %u)\n", |
| 1587 | beacon->state, le32toh(beacon->number))); |
| 1588 | |
| 1589 | if (beacon->state == IWI_BEACON_MISS) { |
| 1590 | /* |
| 1591 | * The firmware notifies us of every beacon miss |
| 1592 | * so we need to track the count against the |
| 1593 | * configured threshold before notifying the |
| 1594 | * 802.11 layer. |
| 1595 | * XXX try to roam, drop assoc only on much higher count |
| 1596 | */ |
| 1597 | if (le32toh(beacon->number) >= vap->iv_bmissthreshold) { |
| 1598 | DPRINTF(("Beacon miss: %u >= %u\n", |
| 1599 | le32toh(beacon->number), |
| 1600 | vap->iv_bmissthreshold)); |
| 1601 | vap->iv_stats.is_beacon_miss++; |
| 1602 | /* |
| 1603 | * It's pointless to notify the 802.11 layer |
| 1604 | * as it'll try to send a probe request (which |
| 1605 | * we'll discard) and then timeout and drop us |
| 1606 | * into scan state. Instead tell the firmware |
| 1607 | * to disassociate and then on completion we'll |
| 1608 | * kick the state machine to scan. |
| 1609 | */ |
| 1610 | ieee80211_runtask(ic, &sc->sc_disassoctask); |
| 1611 | } |
| 1612 | } |
| 1613 | break; |
| 1614 | |
| 1615 | case IWI_NOTIF_TYPE_CALIBRATION: |
| 1616 | case IWI_NOTIF_TYPE_NOISE: |
| 1617 | /* XXX handle? */ |
| 1618 | DPRINTFN(5, ("Notification (%u)\n", notif->type)); |
| 1619 | break; |
| 1620 | case IWI_NOTIF_TYPE_LINK_QUALITY: |
| 1621 | iwi_notif_link_quality(sc, notif); |
| 1622 | break; |
| 1623 | |
| 1624 | default: |
| 1625 | DPRINTF(("unknown notification type %u flags 0x%x len %u\n", |
| 1626 | notif->type, notif->flags, le16toh(notif->len))); |
| 1627 | break; |
| 1628 | } |
| 1629 | } |
| 1630 | |
| 1631 | static void |
| 1632 | iwi_rx_intr(struct iwi_softc *sc) |
| 1633 | { |
| 1634 | struct iwi_rx_data *data; |
| 1635 | struct iwi_hdr *hdr; |
| 1636 | uint32_t hw; |
| 1637 | |
| 1638 | hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); |
| 1639 | |
| 1640 | for (; sc->rxq.cur != hw;) { |
| 1641 | data = &sc->rxq.data[sc->rxq.cur]; |
| 1642 | |
| 1643 | bus_dmamap_sync(sc->rxq.data_dmat, data->map, |
| 1644 | BUS_DMASYNC_POSTREAD); |
| 1645 | |
| 1646 | hdr = mtod(data->m, struct iwi_hdr *); |
| 1647 | |
| 1648 | switch (hdr->type) { |
| 1649 | case IWI_HDR_TYPE_FRAME: |
| 1650 | iwi_frame_intr(sc, data, sc->rxq.cur, |
| 1651 | (struct iwi_frame *)(hdr + 1)); |
| 1652 | break; |
| 1653 | |
| 1654 | case IWI_HDR_TYPE_NOTIF: |
| 1655 | iwi_notification_intr(sc, |
| 1656 | (struct iwi_notif *)(hdr + 1)); |
| 1657 | break; |
| 1658 | |
| 1659 | default: |
| 1660 | device_printf(sc->sc_dev, "unknown hdr type %u\n", |
| 1661 | hdr->type); |
| 1662 | } |
| 1663 | |
| 1664 | DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); |
| 1665 | |
| 1666 | sc->rxq.cur = (sc->rxq.cur + 1) % IWI_RX_RING_COUNT; |
| 1667 | } |
| 1668 | |
| 1669 | /* tell the firmware what we have processed */ |
| 1670 | hw = (hw == 0) ? IWI_RX_RING_COUNT - 1 : hw - 1; |
| 1671 | CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); |
| 1672 | } |
| 1673 | |
| 1674 | static void |
| 1675 | iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) |
| 1676 | { |
| 1677 | struct iwi_tx_data *data; |
| 1678 | uint32_t hw; |
| 1679 | |
| 1680 | hw = CSR_READ_4(sc, txq->csr_ridx); |
| 1681 | |
| 1682 | while (txq->next != hw) { |
| 1683 | data = &txq->data[txq->next]; |
| 1684 | DPRINTFN(15, ("tx done idx=%u\n", txq->next)); |
| 1685 | bus_dmamap_sync(txq->data_dmat, data->map, |
| 1686 | BUS_DMASYNC_POSTWRITE); |
| 1687 | bus_dmamap_unload(txq->data_dmat, data->map); |
| 1688 | ieee80211_tx_complete(data->ni, data->m, 0); |
| 1689 | data->ni = NULL; |
| 1690 | data->m = NULL; |
| 1691 | txq->queued--; |
| 1692 | txq->next = (txq->next + 1) % IWI_TX_RING_COUNT; |
| 1693 | } |
| 1694 | sc->sc_tx_timer = 0; |
| 1695 | if (sc->sc_softled) |
| 1696 | iwi_led_event(sc, IWI_LED_TX); |
| 1697 | iwi_start(sc); |
| 1698 | } |
| 1699 | |
| 1700 | static void |
| 1701 | iwi_fatal_error_intr(struct iwi_softc *sc) |
| 1702 | { |
| 1703 | struct ieee80211com *ic = &sc->sc_ic; |
| 1704 | struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); |
| 1705 | |
| 1706 | device_printf(sc->sc_dev, "firmware error\n"); |
| 1707 | if (vap != NULL) |
| 1708 | ieee80211_cancel_scan(vap); |
| 1709 | ieee80211_runtask(ic, &sc->sc_restarttask); |
| 1710 | |
| 1711 | sc->flags &= ~IWI_FLAG_BUSY; |
| 1712 | sc->sc_busy_timer = 0; |
| 1713 | wakeup(sc); |
| 1714 | } |
| 1715 | |
| 1716 | static void |
| 1717 | iwi_radio_off_intr(struct iwi_softc *sc) |
| 1718 | { |
| 1719 | |
| 1720 | ieee80211_runtask(&sc->sc_ic, &sc->sc_radiofftask); |
| 1721 | } |
| 1722 | |
| 1723 | static void |
| 1724 | iwi_intr(void *arg) |
| 1725 | { |
| 1726 | struct iwi_softc *sc = arg; |
| 1727 | uint32_t r; |
| 1728 | IWI_LOCK_DECL; |
| 1729 | |
| 1730 | IWI_LOCK(sc); |
| 1731 | |
| 1732 | if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) { |
| 1733 | IWI_UNLOCK(sc); |
| 1734 | return; |
| 1735 | } |
| 1736 | |
| 1737 | /* acknowledge interrupts */ |
| 1738 | CSR_WRITE_4(sc, IWI_CSR_INTR, r); |
| 1739 | |
| 1740 | if (r & IWI_INTR_FATAL_ERROR) { |
| 1741 | iwi_fatal_error_intr(sc); |
| 1742 | goto done; |
| 1743 | } |
| 1744 | |
| 1745 | if (r & IWI_INTR_FW_INITED) { |
| 1746 | if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) |
| 1747 | wakeup(sc); |
| 1748 | } |
| 1749 | |
| 1750 | if (r & IWI_INTR_RADIO_OFF) |
| 1751 | iwi_radio_off_intr(sc); |
| 1752 | |
| 1753 | if (r & IWI_INTR_CMD_DONE) { |
| 1754 | sc->flags &= ~IWI_FLAG_BUSY; |
| 1755 | sc->sc_busy_timer = 0; |
| 1756 | wakeup(sc); |
| 1757 | } |
| 1758 | |
| 1759 | if (r & IWI_INTR_TX1_DONE) |
| 1760 | iwi_tx_intr(sc, &sc->txq[0]); |
| 1761 | |
| 1762 | if (r & IWI_INTR_TX2_DONE) |
| 1763 | iwi_tx_intr(sc, &sc->txq[1]); |
| 1764 | |
| 1765 | if (r & IWI_INTR_TX3_DONE) |
| 1766 | iwi_tx_intr(sc, &sc->txq[2]); |
| 1767 | |
| 1768 | if (r & IWI_INTR_TX4_DONE) |
| 1769 | iwi_tx_intr(sc, &sc->txq[3]); |
| 1770 | |
| 1771 | if (r & IWI_INTR_RX_DONE) |
| 1772 | iwi_rx_intr(sc); |
| 1773 | |
| 1774 | if (r & IWI_INTR_PARITY_ERROR) { |
| 1775 | /* XXX rate-limit */ |
| 1776 | device_printf(sc->sc_dev, "parity error\n"); |
| 1777 | } |
| 1778 | done: |
| 1779 | IWI_UNLOCK(sc); |
| 1780 | } |
| 1781 | |
| 1782 | static int |
| 1783 | iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len) |
| 1784 | { |
| 1785 | struct iwi_cmd_desc *desc; |
| 1786 | |
| 1787 | IWI_LOCK_ASSERT(sc); |
| 1788 | |
| 1789 | if (sc->flags & IWI_FLAG_BUSY) { |
| 1790 | device_printf(sc->sc_dev, "%s: cmd %d not sent, busy\n", |
| 1791 | __func__, type); |
| 1792 | return EAGAIN; |
| 1793 | } |
| 1794 | sc->flags |= IWI_FLAG_BUSY; |
| 1795 | sc->sc_busy_timer = 2; |
| 1796 | |
| 1797 | desc = &sc->cmdq.desc[sc->cmdq.cur]; |
| 1798 | |
| 1799 | desc->hdr.type = IWI_HDR_TYPE_COMMAND; |
| 1800 | desc->hdr.flags = IWI_HDR_FLAG_IRQ; |
| 1801 | desc->type = type; |
| 1802 | desc->len = len; |
| 1803 | memcpy(desc->data, data, len); |
| 1804 | |
| 1805 | bus_dmamap_sync(sc->cmdq.desc_dmat, sc->cmdq.desc_map, |
| 1806 | BUS_DMASYNC_PREWRITE); |
| 1807 | |
| 1808 | DPRINTFN(2, ("sending command idx=%u type=%u len=%u\n", sc->cmdq.cur, |
| 1809 | type, len)); |
| 1810 | |
| 1811 | sc->cmdq.cur = (sc->cmdq.cur + 1) % IWI_CMD_RING_COUNT; |
| 1812 | CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); |
| 1813 | |
| 1814 | #if defined(__DragonFly__) |
| 1815 | return lksleep(sc, &sc->sc_lock, 0, "iwicmd", hz); |
| 1816 | #else |
| 1817 | return msleep(sc, &sc->sc_mtx, 0, "iwicmd", hz); |
| 1818 | #endif |
| 1819 | } |
| 1820 | |
| 1821 | static void |
| 1822 | iwi_write_ibssnode(struct iwi_softc *sc, |
| 1823 | const u_int8_t addr[IEEE80211_ADDR_LEN], int entry) |
| 1824 | { |
| 1825 | struct iwi_ibssnode node; |
| 1826 | |
| 1827 | /* write node information into NIC memory */ |
| 1828 | memset(&node, 0, sizeof node); |
| 1829 | IEEE80211_ADDR_COPY(node.bssid, addr); |
| 1830 | #if defined(__DragonFly__) |
| 1831 | DPRINTF(("%s mac %s station %u\n", __func__, ether_sprintf(node.bssid), |
| 1832 | entry)); |
| 1833 | #else |
| 1834 | DPRINTF(("%s mac %6D station %u\n", __func__, node.bssid, ":", entry)); |
| 1835 | #endif |
| 1836 | |
| 1837 | CSR_WRITE_REGION_1(sc, |
| 1838 | IWI_CSR_NODE_BASE + entry * sizeof node, |
| 1839 | (uint8_t *)&node, sizeof node); |
| 1840 | } |
| 1841 | |
| 1842 | static int |
| 1843 | iwi_tx_start(struct iwi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, |
| 1844 | int ac) |
| 1845 | { |
| 1846 | struct ieee80211vap *vap = ni->ni_vap; |
| 1847 | struct ieee80211com *ic = ni->ni_ic; |
| 1848 | struct iwi_node *in = (struct iwi_node *)ni; |
| 1849 | const struct ieee80211_frame *wh; |
| 1850 | struct ieee80211_key *k; |
| 1851 | const struct chanAccParams *cap; |
| 1852 | struct iwi_tx_ring *txq = &sc->txq[ac]; |
| 1853 | struct iwi_tx_data *data; |
| 1854 | struct iwi_tx_desc *desc; |
| 1855 | struct mbuf *mnew; |
| 1856 | bus_dma_segment_t segs[IWI_MAX_NSEG]; |
| 1857 | int error, nsegs, hdrlen, i; |
| 1858 | int ismcast, flags, xflags, staid; |
| 1859 | |
| 1860 | IWI_LOCK_ASSERT(sc); |
| 1861 | wh = mtod(m0, const struct ieee80211_frame *); |
| 1862 | /* NB: only data frames use this path */ |
| 1863 | hdrlen = ieee80211_hdrsize(wh); |
| 1864 | ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); |
| 1865 | flags = xflags = 0; |
| 1866 | |
| 1867 | if (!ismcast) |
| 1868 | flags |= IWI_DATA_FLAG_NEED_ACK; |
| 1869 | if (vap->iv_flags & IEEE80211_F_SHPREAMBLE) |
| 1870 | flags |= IWI_DATA_FLAG_SHPREAMBLE; |
| 1871 | if (IEEE80211_QOS_HAS_SEQ(wh)) { |
| 1872 | xflags |= IWI_DATA_XFLAG_QOS; |
| 1873 | cap = &ic->ic_wme.wme_chanParams; |
| 1874 | if (!cap->cap_wmeParams[ac].wmep_noackPolicy) |
| 1875 | flags &= ~IWI_DATA_FLAG_NEED_ACK; |
| 1876 | } |
| 1877 | |
| 1878 | /* |
| 1879 | * This is only used in IBSS mode where the firmware expect an index |
| 1880 | * in a h/w table instead of a destination address. |
| 1881 | */ |
| 1882 | if (vap->iv_opmode == IEEE80211_M_IBSS) { |
| 1883 | if (!ismcast) { |
| 1884 | if (in->in_station == -1) { |
| 1885 | #if defined(__DragonFly__) |
| 1886 | in->in_station = devfs_clone_bitmap_get(&sc->sc_unr, |
| 1887 | IWI_MAX_IBSSNODE-1); |
| 1888 | #else |
| 1889 | in->in_station = alloc_unr(sc->sc_unr); |
| 1890 | #endif |
| 1891 | if (in->in_station == -1) { |
| 1892 | /* h/w table is full */ |
| 1893 | if_inc_counter(ni->ni_vap->iv_ifp, |
| 1894 | IFCOUNTER_OERRORS, 1); |
| 1895 | m_freem(m0); |
| 1896 | ieee80211_free_node(ni); |
| 1897 | return 0; |
| 1898 | } |
| 1899 | iwi_write_ibssnode(sc, |
| 1900 | ni->ni_macaddr, in->in_station); |
| 1901 | } |
| 1902 | staid = in->in_station; |
| 1903 | } else { |
| 1904 | /* |
| 1905 | * Multicast addresses have no associated node |
| 1906 | * so there will be no station entry. We reserve |
| 1907 | * entry 0 for one mcast address and use that. |
| 1908 | * If there are many being used this will be |
| 1909 | * expensive and we'll need to do a better job |
| 1910 | * but for now this handles the broadcast case. |
| 1911 | */ |
| 1912 | if (!IEEE80211_ADDR_EQ(wh->i_addr1, sc->sc_mcast)) { |
| 1913 | IEEE80211_ADDR_COPY(sc->sc_mcast, wh->i_addr1); |
| 1914 | iwi_write_ibssnode(sc, sc->sc_mcast, 0); |
| 1915 | } |
| 1916 | staid = 0; |
| 1917 | } |
| 1918 | } else |
| 1919 | staid = 0; |
| 1920 | |
| 1921 | if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { |
| 1922 | k = ieee80211_crypto_encap(ni, m0); |
| 1923 | if (k == NULL) { |
| 1924 | m_freem(m0); |
| 1925 | return ENOBUFS; |
| 1926 | } |
| 1927 | |
| 1928 | /* packet header may have moved, reset our local pointer */ |
| 1929 | wh = mtod(m0, struct ieee80211_frame *); |
| 1930 | } |
| 1931 | |
| 1932 | if (ieee80211_radiotap_active_vap(vap)) { |
| 1933 | struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; |
| 1934 | |
| 1935 | tap->wt_flags = 0; |
| 1936 | |
| 1937 | ieee80211_radiotap_tx(vap, m0); |
| 1938 | } |
| 1939 | |
| 1940 | data = &txq->data[txq->cur]; |
| 1941 | desc = &txq->desc[txq->cur]; |
| 1942 | |
| 1943 | /* save and trim IEEE802.11 header */ |
| 1944 | m_copydata(m0, 0, hdrlen, &desc->wh); |
| 1945 | m_adj(m0, hdrlen); |
| 1946 | |
| 1947 | #if defined(__DragonFly__) |
| 1948 | error = bus_dmamap_load_mbuf_segment(txq->data_dmat, data->map, |
| 1949 | m0, segs, 1, &nsegs, BUS_DMA_NOWAIT); |
| 1950 | #else |
| 1951 | error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, m0, segs, |
| 1952 | &nsegs, 0); |
| 1953 | #endif |
| 1954 | if (error != 0 && error != EFBIG) { |
| 1955 | device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", |
| 1956 | error); |
| 1957 | m_freem(m0); |
| 1958 | return error; |
| 1959 | } |
| 1960 | if (error != 0) { |
| 1961 | mnew = m_defrag(m0, M_NOWAIT); |
| 1962 | if (mnew == NULL) { |
| 1963 | device_printf(sc->sc_dev, |
| 1964 | "could not defragment mbuf\n"); |
| 1965 | m_freem(m0); |
| 1966 | return ENOBUFS; |
| 1967 | } |
| 1968 | m0 = mnew; |
| 1969 | |
| 1970 | #if defined(__DragonFly__) |
| 1971 | error = bus_dmamap_load_mbuf_segment(txq->data_dmat, |
| 1972 | data->map, m0, segs, 1, &nsegs, BUS_DMA_NOWAIT); |
| 1973 | #else |
| 1974 | error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, |
| 1975 | m0, segs, &nsegs, 0); |
| 1976 | #endif |
| 1977 | if (error != 0) { |
| 1978 | device_printf(sc->sc_dev, |
| 1979 | "could not map mbuf (error %d)\n", error); |
| 1980 | m_freem(m0); |
| 1981 | return error; |
| 1982 | } |
| 1983 | } |
| 1984 | |
| 1985 | data->m = m0; |
| 1986 | data->ni = ni; |
| 1987 | |
| 1988 | desc->hdr.type = IWI_HDR_TYPE_DATA; |
| 1989 | desc->hdr.flags = IWI_HDR_FLAG_IRQ; |
| 1990 | desc->station = staid; |
| 1991 | desc->cmd = IWI_DATA_CMD_TX; |
| 1992 | desc->len = htole16(m0->m_pkthdr.len); |
| 1993 | desc->flags = flags; |
| 1994 | desc->xflags = xflags; |
| 1995 | |
| 1996 | #if 0 |
| 1997 | if (vap->iv_flags & IEEE80211_F_PRIVACY) |
| 1998 | desc->wep_txkey = vap->iv_def_txkey; |
| 1999 | else |
| 2000 | #endif |
| 2001 | desc->flags |= IWI_DATA_FLAG_NO_WEP; |
| 2002 | |
| 2003 | desc->nseg = htole32(nsegs); |
| 2004 | for (i = 0; i < nsegs; i++) { |
| 2005 | desc->seg_addr[i] = htole32(segs[i].ds_addr); |
| 2006 | desc->seg_len[i] = htole16(segs[i].ds_len); |
| 2007 | } |
| 2008 | |
| 2009 | bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE); |
| 2010 | bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE); |
| 2011 | |
| 2012 | DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", |
| 2013 | ac, txq->cur, le16toh(desc->len), nsegs)); |
| 2014 | |
| 2015 | txq->queued++; |
| 2016 | txq->cur = (txq->cur + 1) % IWI_TX_RING_COUNT; |
| 2017 | CSR_WRITE_4(sc, txq->csr_widx, txq->cur); |
| 2018 | |
| 2019 | return 0; |
| 2020 | } |
| 2021 | |
| 2022 | static int |
| 2023 | iwi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, |
| 2024 | const struct ieee80211_bpf_params *params) |
| 2025 | { |
| 2026 | /* no support; just discard */ |
| 2027 | m_freem(m); |
| 2028 | ieee80211_free_node(ni); |
| 2029 | return 0; |
| 2030 | } |
| 2031 | |
| 2032 | static int |
| 2033 | iwi_transmit(struct ieee80211com *ic, struct mbuf *m) |
| 2034 | { |
| 2035 | struct iwi_softc *sc = ic->ic_softc; |
| 2036 | int error; |
| 2037 | IWI_LOCK_DECL; |
| 2038 | |
| 2039 | IWI_LOCK(sc); |
| 2040 | if (!sc->sc_running) { |
| 2041 | IWI_UNLOCK(sc); |
| 2042 | return (ENXIO); |
| 2043 | } |
| 2044 | error = mbufq_enqueue(&sc->sc_snd, m); |
| 2045 | if (error) { |
| 2046 | IWI_UNLOCK(sc); |
| 2047 | return (error); |
| 2048 | } |
| 2049 | iwi_start(sc); |
| 2050 | IWI_UNLOCK(sc); |
| 2051 | return (0); |
| 2052 | } |
| 2053 | |
| 2054 | static void |
| 2055 | iwi_start(struct iwi_softc *sc) |
| 2056 | { |
| 2057 | struct mbuf *m; |
| 2058 | struct ieee80211_node *ni; |
| 2059 | int ac; |
| 2060 | |
| 2061 | IWI_LOCK_ASSERT(sc); |
| 2062 | |
| 2063 | while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) { |
| 2064 | ac = M_WME_GETAC(m); |
| 2065 | if (sc->txq[ac].queued > IWI_TX_RING_COUNT - 8) { |
| 2066 | /* there is no place left in this ring; tail drop */ |
| 2067 | /* XXX tail drop */ |
| 2068 | mbufq_prepend(&sc->sc_snd, m); |
| 2069 | break; |
| 2070 | } |
| 2071 | ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; |
| 2072 | if (iwi_tx_start(sc, m, ni, ac) != 0) { |
| 2073 | ieee80211_free_node(ni); |
| 2074 | if_inc_counter(ni->ni_vap->iv_ifp, |
| 2075 | IFCOUNTER_OERRORS, 1); |
| 2076 | break; |
| 2077 | } |
| 2078 | sc->sc_tx_timer = 5; |
| 2079 | } |
| 2080 | } |
| 2081 | |
| 2082 | static void |
| 2083 | iwi_watchdog(void *arg) |
| 2084 | { |
| 2085 | struct iwi_softc *sc = arg; |
| 2086 | struct ieee80211com *ic = &sc->sc_ic; |
| 2087 | |
| 2088 | IWI_LOCK_ASSERT(sc); |
| 2089 | |
| 2090 | if (sc->sc_tx_timer > 0) { |
| 2091 | if (--sc->sc_tx_timer == 0) { |
| 2092 | device_printf(sc->sc_dev, "device timeout\n"); |
| 2093 | #if defined(__DragonFly__) |
| 2094 | ++ic->ic_oerrors; |
| 2095 | #else |
| 2096 | counter_u64_add(ic->ic_oerrors, 1); |
| 2097 | #endif |
| 2098 | ieee80211_runtask(ic, &sc->sc_restarttask); |
| 2099 | } |
| 2100 | } |
| 2101 | if (sc->sc_state_timer > 0) { |
| 2102 | if (--sc->sc_state_timer == 0) { |
| 2103 | device_printf(sc->sc_dev, |
| 2104 | "firmware stuck in state %d, resetting\n", |
| 2105 | sc->fw_state); |
| 2106 | if (sc->fw_state == IWI_FW_SCANNING) |
| 2107 | ieee80211_cancel_scan(TAILQ_FIRST(&ic->ic_vaps)); |
| 2108 | ieee80211_runtask(ic, &sc->sc_restarttask); |
| 2109 | sc->sc_state_timer = 3; |
| 2110 | } |
| 2111 | } |
| 2112 | if (sc->sc_busy_timer > 0) { |
| 2113 | if (--sc->sc_busy_timer == 0) { |
| 2114 | device_printf(sc->sc_dev, |
| 2115 | "firmware command timeout, resetting\n"); |
| 2116 | ieee80211_runtask(ic, &sc->sc_restarttask); |
| 2117 | } |
| 2118 | } |
| 2119 | callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc); |
| 2120 | } |
| 2121 | |
| 2122 | static void |
| 2123 | iwi_parent(struct ieee80211com *ic) |
| 2124 | { |
| 2125 | struct iwi_softc *sc = ic->ic_softc; |
| 2126 | int startall = 0; |
| 2127 | IWI_LOCK_DECL; |
| 2128 | |
| 2129 | IWI_LOCK(sc); |
| 2130 | if (ic->ic_nrunning > 0) { |
| 2131 | if (!sc->sc_running) { |
| 2132 | iwi_init_locked(sc); |
| 2133 | startall = 1; |
| 2134 | } |
| 2135 | } else if (sc->sc_running) |
| 2136 | iwi_stop_locked(sc); |
| 2137 | IWI_UNLOCK(sc); |
| 2138 | if (startall) |
| 2139 | ieee80211_start_all(ic); |
| 2140 | } |
| 2141 | |
| 2142 | static void |
| 2143 | iwi_stop_master(struct iwi_softc *sc) |
| 2144 | { |
| 2145 | uint32_t tmp; |
| 2146 | int ntries; |
| 2147 | |
| 2148 | /* disable interrupts */ |
| 2149 | CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); |
| 2150 | |
| 2151 | CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); |
| 2152 | for (ntries = 0; ntries < 5; ntries++) { |
| 2153 | if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) |
| 2154 | break; |
| 2155 | DELAY(10); |
| 2156 | } |
| 2157 | if (ntries == 5) |
| 2158 | device_printf(sc->sc_dev, "timeout waiting for master\n"); |
| 2159 | |
| 2160 | tmp = CSR_READ_4(sc, IWI_CSR_RST); |
| 2161 | CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_PRINCETON_RESET); |
| 2162 | |
| 2163 | sc->flags &= ~IWI_FLAG_FW_INITED; |
| 2164 | } |
| 2165 | |
| 2166 | static int |
| 2167 | iwi_reset(struct iwi_softc *sc) |
| 2168 | { |
| 2169 | uint32_t tmp; |
| 2170 | int i, ntries; |
| 2171 | |
| 2172 | iwi_stop_master(sc); |
| 2173 | |
| 2174 | tmp = CSR_READ_4(sc, IWI_CSR_CTL); |
| 2175 | CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); |
| 2176 | |
| 2177 | CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); |
| 2178 | |
| 2179 | /* wait for clock stabilization */ |
| 2180 | for (ntries = 0; ntries < 1000; ntries++) { |
| 2181 | if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) |
| 2182 | break; |
| 2183 | DELAY(200); |
| 2184 | } |
| 2185 | if (ntries == 1000) { |
| 2186 | device_printf(sc->sc_dev, |
| 2187 | "timeout waiting for clock stabilization\n"); |
| 2188 | return EIO; |
| 2189 | } |
| 2190 | |
| 2191 | tmp = CSR_READ_4(sc, IWI_CSR_RST); |
| 2192 | CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_SOFT_RESET); |
| 2193 | |
| 2194 | DELAY(10); |
| 2195 | |
| 2196 | tmp = CSR_READ_4(sc, IWI_CSR_CTL); |
| 2197 | CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); |
| 2198 | |
| 2199 | /* clear NIC memory */ |
| 2200 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); |
| 2201 | for (i = 0; i < 0xc000; i++) |
| 2202 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); |
| 2203 | |
| 2204 | return 0; |
| 2205 | } |
| 2206 | |
| 2207 | static const struct iwi_firmware_ohdr * |
| 2208 | iwi_setup_ofw(struct iwi_softc *sc, struct iwi_fw *fw) |
| 2209 | { |
| 2210 | const struct firmware *fp = fw->fp; |
| 2211 | const struct iwi_firmware_ohdr *hdr; |
| 2212 | |
| 2213 | if (fp->datasize < sizeof (struct iwi_firmware_ohdr)) { |
| 2214 | device_printf(sc->sc_dev, "image '%s' too small\n", fp->name); |
| 2215 | return NULL; |
| 2216 | } |
| 2217 | hdr = (const struct iwi_firmware_ohdr *)fp->data; |
| 2218 | if ((IWI_FW_GET_MAJOR(le32toh(hdr->version)) != IWI_FW_REQ_MAJOR) || |
| 2219 | (IWI_FW_GET_MINOR(le32toh(hdr->version)) != IWI_FW_REQ_MINOR)) { |
| 2220 | device_printf(sc->sc_dev, "version for '%s' %d.%d != %d.%d\n", |
| 2221 | fp->name, IWI_FW_GET_MAJOR(le32toh(hdr->version)), |
| 2222 | IWI_FW_GET_MINOR(le32toh(hdr->version)), IWI_FW_REQ_MAJOR, |
| 2223 | IWI_FW_REQ_MINOR); |
| 2224 | return NULL; |
| 2225 | } |
| 2226 | fw->data = ((const char *) fp->data) + sizeof(struct iwi_firmware_ohdr); |
| 2227 | fw->size = fp->datasize - sizeof(struct iwi_firmware_ohdr); |
| 2228 | fw->name = fp->name; |
| 2229 | return hdr; |
| 2230 | } |
| 2231 | |
| 2232 | static const struct iwi_firmware_ohdr * |
| 2233 | iwi_setup_oucode(struct iwi_softc *sc, struct iwi_fw *fw) |
| 2234 | { |
| 2235 | const struct iwi_firmware_ohdr *hdr; |
| 2236 | |
| 2237 | hdr = iwi_setup_ofw(sc, fw); |
| 2238 | if (hdr != NULL && le32toh(hdr->mode) != IWI_FW_MODE_UCODE) { |
| 2239 | device_printf(sc->sc_dev, "%s is not a ucode image\n", |
| 2240 | fw->name); |
| 2241 | hdr = NULL; |
| 2242 | } |
| 2243 | return hdr; |
| 2244 | } |
| 2245 | |
| 2246 | static void |
| 2247 | iwi_getfw(struct iwi_fw *fw, const char *fwname, |
| 2248 | struct iwi_fw *uc, const char *ucname) |
| 2249 | { |
| 2250 | if (fw->fp == NULL) |
| 2251 | fw->fp = firmware_get(fwname); |
| 2252 | /* NB: pre-3.0 ucode is packaged separately */ |
| 2253 | if (uc->fp == NULL && fw->fp != NULL && fw->fp->version < 300) |
| 2254 | uc->fp = firmware_get(ucname); |
| 2255 | } |
| 2256 | |
| 2257 | /* |
| 2258 | * Get the required firmware images if not already loaded. |
| 2259 | * Note that we hold firmware images so long as the device |
| 2260 | * is marked up in case we need to reload them on device init. |
| 2261 | * This is necessary because we re-init the device sometimes |
| 2262 | * from a context where we cannot read from the filesystem |
| 2263 | * (e.g. from the taskqueue thread when rfkill is re-enabled). |
| 2264 | * XXX return 0 on success, 1 on error. |
| 2265 | * |
| 2266 | * NB: the order of get'ing and put'ing images here is |
| 2267 | * intentional to support handling firmware images bundled |
| 2268 | * by operating mode and/or all together in one file with |
| 2269 | * the boot firmware as "master". |
| 2270 | */ |
| 2271 | static int |
| 2272 | iwi_get_firmware(struct iwi_softc *sc, enum ieee80211_opmode opmode) |
| 2273 | { |
| 2274 | const struct iwi_firmware_hdr *hdr; |
| 2275 | const struct firmware *fp; |
| 2276 | |
| 2277 | /* invalidate cached firmware on mode change */ |
| 2278 | if (sc->fw_mode != opmode) |
| 2279 | iwi_put_firmware(sc); |
| 2280 | |
| 2281 | switch (opmode) { |
| 2282 | case IEEE80211_M_STA: |
| 2283 | iwi_getfw(&sc->fw_fw, "iwi_bss", &sc->fw_uc, "iwi_ucode_bss"); |
| 2284 | break; |
| 2285 | case IEEE80211_M_IBSS: |
| 2286 | iwi_getfw(&sc->fw_fw, "iwi_ibss", &sc->fw_uc, "iwi_ucode_ibss"); |
| 2287 | break; |
| 2288 | case IEEE80211_M_MONITOR: |
| 2289 | iwi_getfw(&sc->fw_fw, "iwi_monitor", |
| 2290 | &sc->fw_uc, "iwi_ucode_monitor"); |
| 2291 | break; |
| 2292 | default: |
| 2293 | device_printf(sc->sc_dev, "unknown opmode %d\n", opmode); |
| 2294 | return EINVAL; |
| 2295 | } |
| 2296 | fp = sc->fw_fw.fp; |
| 2297 | if (fp == NULL) { |
| 2298 | device_printf(sc->sc_dev, "could not load firmware\n"); |
| 2299 | goto bad; |
| 2300 | } |
| 2301 | if (fp->version < 300) { |
| 2302 | /* |
| 2303 | * Firmware prior to 3.0 was packaged as separate |
| 2304 | * boot, firmware, and ucode images. Verify the |
| 2305 | * ucode image was read in, retrieve the boot image |
| 2306 | * if needed, and check version stamps for consistency. |
| 2307 | * The version stamps in the data are also checked |
| 2308 | * above; this is a bit paranoid but is a cheap |
| 2309 | * safeguard against mis-packaging. |
| 2310 | */ |
| 2311 | if (sc->fw_uc.fp == NULL) { |
| 2312 | device_printf(sc->sc_dev, "could not load ucode\n"); |
| 2313 | goto bad; |
| 2314 | } |
| 2315 | if (sc->fw_boot.fp == NULL) { |
| 2316 | sc->fw_boot.fp = firmware_get("iwi_boot"); |
| 2317 | if (sc->fw_boot.fp == NULL) { |
| 2318 | device_printf(sc->sc_dev, |
| 2319 | "could not load boot firmware\n"); |
| 2320 | goto bad; |
| 2321 | } |
| 2322 | } |
| 2323 | if (sc->fw_boot.fp->version != sc->fw_fw.fp->version || |
| 2324 | sc->fw_boot.fp->version != sc->fw_uc.fp->version) { |
| 2325 | device_printf(sc->sc_dev, |
| 2326 | "firmware version mismatch: " |
| 2327 | "'%s' is %d, '%s' is %d, '%s' is %d\n", |
| 2328 | sc->fw_boot.fp->name, sc->fw_boot.fp->version, |
| 2329 | sc->fw_uc.fp->name, sc->fw_uc.fp->version, |
| 2330 | sc->fw_fw.fp->name, sc->fw_fw.fp->version |
| 2331 | ); |
| 2332 | goto bad; |
| 2333 | } |
| 2334 | /* |
| 2335 | * Check and setup each image. |
| 2336 | */ |
| 2337 | if (iwi_setup_oucode(sc, &sc->fw_uc) == NULL || |
| 2338 | iwi_setup_ofw(sc, &sc->fw_boot) == NULL || |
| 2339 | iwi_setup_ofw(sc, &sc->fw_fw) == NULL) |
| 2340 | goto bad; |
| 2341 | } else { |
| 2342 | /* |
| 2343 | * Check and setup combined image. |
| 2344 | */ |
| 2345 | if (fp->datasize < sizeof(struct iwi_firmware_hdr)) { |
| 2346 | device_printf(sc->sc_dev, "image '%s' too small\n", |
| 2347 | fp->name); |
| 2348 | goto bad; |
| 2349 | } |
| 2350 | hdr = (const struct iwi_firmware_hdr *)fp->data; |
| 2351 | if (fp->datasize < sizeof(*hdr) + le32toh(hdr->bsize) + le32toh(hdr->usize) |
| 2352 | + le32toh(hdr->fsize)) { |
| 2353 | device_printf(sc->sc_dev, "image '%s' too small (2)\n", |
| 2354 | fp->name); |
| 2355 | goto bad; |
| 2356 | } |
| 2357 | sc->fw_boot.data = ((const char *) fp->data) + sizeof(*hdr); |
| 2358 | sc->fw_boot.size = le32toh(hdr->bsize); |
| 2359 | sc->fw_boot.name = fp->name; |
| 2360 | sc->fw_uc.data = sc->fw_boot.data + sc->fw_boot.size; |
| 2361 | sc->fw_uc.size = le32toh(hdr->usize); |
| 2362 | sc->fw_uc.name = fp->name; |
| 2363 | sc->fw_fw.data = sc->fw_uc.data + sc->fw_uc.size; |
| 2364 | sc->fw_fw.size = le32toh(hdr->fsize); |
| 2365 | sc->fw_fw.name = fp->name; |
| 2366 | } |
| 2367 | #if 0 |
| 2368 | device_printf(sc->sc_dev, "boot %d ucode %d fw %d bytes\n", |
| 2369 | sc->fw_boot.size, sc->fw_uc.size, sc->fw_fw.size); |
| 2370 | #endif |
| 2371 | |
| 2372 | sc->fw_mode = opmode; |
| 2373 | return 0; |
| 2374 | bad: |
| 2375 | iwi_put_firmware(sc); |
| 2376 | return 1; |
| 2377 | } |
| 2378 | |
| 2379 | static void |
| 2380 | iwi_put_fw(struct iwi_fw *fw) |
| 2381 | { |
| 2382 | if (fw->fp != NULL) { |
| 2383 | firmware_put(fw->fp, FIRMWARE_UNLOAD); |
| 2384 | fw->fp = NULL; |
| 2385 | } |
| 2386 | fw->data = NULL; |
| 2387 | fw->size = 0; |
| 2388 | fw->name = NULL; |
| 2389 | } |
| 2390 | |
| 2391 | /* |
| 2392 | * Release any cached firmware images. |
| 2393 | */ |
| 2394 | static void |
| 2395 | iwi_put_firmware(struct iwi_softc *sc) |
| 2396 | { |
| 2397 | iwi_put_fw(&sc->fw_uc); |
| 2398 | iwi_put_fw(&sc->fw_fw); |
| 2399 | iwi_put_fw(&sc->fw_boot); |
| 2400 | } |
| 2401 | |
| 2402 | static int |
| 2403 | iwi_load_ucode(struct iwi_softc *sc, const struct iwi_fw *fw) |
| 2404 | { |
| 2405 | uint32_t tmp; |
| 2406 | const uint16_t *w; |
| 2407 | const char *uc = fw->data; |
| 2408 | size_t size = fw->size; |
| 2409 | int i, ntries, error; |
| 2410 | |
| 2411 | IWI_LOCK_ASSERT(sc); |
| 2412 | error = 0; |
| 2413 | CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | |
| 2414 | IWI_RST_STOP_MASTER); |
| 2415 | for (ntries = 0; ntries < 5; ntries++) { |
| 2416 | if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) |
| 2417 | break; |
| 2418 | DELAY(10); |
| 2419 | } |
| 2420 | if (ntries == 5) { |
| 2421 | device_printf(sc->sc_dev, "timeout waiting for master\n"); |
| 2422 | error = EIO; |
| 2423 | goto fail; |
| 2424 | } |
| 2425 | |
| 2426 | MEM_WRITE_4(sc, 0x3000e0, 0x80000000); |
| 2427 | DELAY(5000); |
| 2428 | |
| 2429 | tmp = CSR_READ_4(sc, IWI_CSR_RST); |
| 2430 | tmp &= ~IWI_RST_PRINCETON_RESET; |
| 2431 | CSR_WRITE_4(sc, IWI_CSR_RST, tmp); |
| 2432 | |
| 2433 | DELAY(5000); |
| 2434 | MEM_WRITE_4(sc, 0x3000e0, 0); |
| 2435 | DELAY(1000); |
| 2436 | MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 1); |
| 2437 | DELAY(1000); |
| 2438 | MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, 0); |
| 2439 | DELAY(1000); |
| 2440 | MEM_WRITE_1(sc, 0x200000, 0x00); |
| 2441 | MEM_WRITE_1(sc, 0x200000, 0x40); |
| 2442 | DELAY(1000); |
| 2443 | |
| 2444 | /* write microcode into adapter memory */ |
| 2445 | for (w = (const uint16_t *)uc; size > 0; w++, size -= 2) |
| 2446 | MEM_WRITE_2(sc, 0x200010, htole16(*w)); |
| 2447 | |
| 2448 | MEM_WRITE_1(sc, 0x200000, 0x00); |
| 2449 | MEM_WRITE_1(sc, 0x200000, 0x80); |
| 2450 | |
| 2451 | /* wait until we get an answer */ |
| 2452 | for (ntries = 0; ntries < 100; ntries++) { |
| 2453 | if (MEM_READ_1(sc, 0x200000) & 1) |
| 2454 | break; |
| 2455 | DELAY(100); |
| 2456 | } |
| 2457 | if (ntries == 100) { |
| 2458 | device_printf(sc->sc_dev, |
| 2459 | "timeout waiting for ucode to initialize\n"); |
| 2460 | error = EIO; |
| 2461 | goto fail; |
| 2462 | } |
| 2463 | |
| 2464 | /* read the answer or the firmware will not initialize properly */ |
| 2465 | for (i = 0; i < 7; i++) |
| 2466 | MEM_READ_4(sc, 0x200004); |
| 2467 | |
| 2468 | MEM_WRITE_1(sc, 0x200000, 0x00); |
| 2469 | |
| 2470 | fail: |
| 2471 | return error; |
| 2472 | } |
| 2473 | |
| 2474 | /* macro to handle unaligned little endian data in firmware image */ |
| 2475 | #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) |
| 2476 | |
| 2477 | static int |
| 2478 | iwi_load_firmware(struct iwi_softc *sc, const struct iwi_fw *fw) |
| 2479 | { |
| 2480 | u_char *p, *end; |
| 2481 | uint32_t sentinel, ctl, src, dst, sum, len, mlen, tmp; |
| 2482 | int ntries, error; |
| 2483 | |
| 2484 | IWI_LOCK_ASSERT(sc); |
| 2485 | |
| 2486 | /* copy firmware image to DMA memory */ |
| 2487 | memcpy(sc->fw_virtaddr, fw->data, fw->size); |
| 2488 | |
| 2489 | /* make sure the adapter will get up-to-date values */ |
| 2490 | bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_PREWRITE); |
| 2491 | |
| 2492 | /* tell the adapter where the command blocks are stored */ |
| 2493 | MEM_WRITE_4(sc, 0x3000a0, 0x27000); |
| 2494 | |
| 2495 | /* |
| 2496 | * Store command blocks into adapter's internal memory using register |
| 2497 | * indirections. The adapter will read the firmware image through DMA |
| 2498 | * using information stored in command blocks. |
| 2499 | */ |
| 2500 | src = sc->fw_physaddr; |
| 2501 | p = sc->fw_virtaddr; |
| 2502 | end = p + fw->size; |
| 2503 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); |
| 2504 | |
| 2505 | while (p < end) { |
| 2506 | dst = GETLE32(p); p += 4; src += 4; |
| 2507 | len = GETLE32(p); p += 4; src += 4; |
| 2508 | p += len; |
| 2509 | |
| 2510 | while (len > 0) { |
| 2511 | mlen = min(len, IWI_CB_MAXDATALEN); |
| 2512 | |
| 2513 | ctl = IWI_CB_DEFAULT_CTL | mlen; |
| 2514 | sum = ctl ^ src ^ dst; |
| 2515 | |
| 2516 | /* write a command block */ |
| 2517 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); |
| 2518 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, src); |
| 2519 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, dst); |
| 2520 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); |
| 2521 | |
| 2522 | src += mlen; |
| 2523 | dst += mlen; |
| 2524 | len -= mlen; |
| 2525 | } |
| 2526 | } |
| 2527 | |
| 2528 | /* write a fictive final command block (sentinel) */ |
| 2529 | sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); |
| 2530 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); |
| 2531 | |
| 2532 | tmp = CSR_READ_4(sc, IWI_CSR_RST); |
| 2533 | tmp &= ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER); |
| 2534 | CSR_WRITE_4(sc, IWI_CSR_RST, tmp); |
| 2535 | |
| 2536 | /* tell the adapter to start processing command blocks */ |
| 2537 | MEM_WRITE_4(sc, 0x3000a4, 0x540100); |
| 2538 | |
| 2539 | /* wait until the adapter reaches the sentinel */ |
| 2540 | for (ntries = 0; ntries < 400; ntries++) { |
| 2541 | if (MEM_READ_4(sc, 0x3000d0) >= sentinel) |
| 2542 | break; |
| 2543 | DELAY(100); |
| 2544 | } |
| 2545 | /* sync dma, just in case */ |
| 2546 | bus_dmamap_sync(sc->fw_dmat, sc->fw_map, BUS_DMASYNC_POSTWRITE); |
| 2547 | if (ntries == 400) { |
| 2548 | device_printf(sc->sc_dev, |
| 2549 | "timeout processing command blocks for %s firmware\n", |
| 2550 | fw->name); |
| 2551 | return EIO; |
| 2552 | } |
| 2553 | |
| 2554 | /* we're done with command blocks processing */ |
| 2555 | MEM_WRITE_4(sc, 0x3000a4, 0x540c00); |
| 2556 | |
| 2557 | /* allow interrupts so we know when the firmware is ready */ |
| 2558 | CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); |
| 2559 | |
| 2560 | /* tell the adapter to initialize the firmware */ |
| 2561 | CSR_WRITE_4(sc, IWI_CSR_RST, 0); |
| 2562 | |
| 2563 | tmp = CSR_READ_4(sc, IWI_CSR_CTL); |
| 2564 | CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_ALLOW_STANDBY); |
| 2565 | |
| 2566 | /* wait at most one second for firmware initialization to complete */ |
| 2567 | #if defined(__DragonFly__) |
| 2568 | if ((error = lksleep(sc, &sc->sc_lock, 0, "iwiinit", hz)) != 0) { |
| 2569 | #else |
| 2570 | if ((error = msleep(sc, &sc->sc_mtx, 0, "iwiinit", hz)) != 0) { |
| 2571 | #endif |
| 2572 | device_printf(sc->sc_dev, "timeout waiting for %s firmware " |
| 2573 | "initialization to complete\n", fw->name); |
| 2574 | } |
| 2575 | |
| 2576 | return error; |
| 2577 | } |
| 2578 | |
| 2579 | static int |
| 2580 | iwi_setpowermode(struct iwi_softc *sc, struct ieee80211vap *vap) |
| 2581 | { |
| 2582 | uint32_t data; |
| 2583 | |
| 2584 | if (vap->iv_flags & IEEE80211_F_PMGTON) { |
| 2585 | /* XXX set more fine-grained operation */ |
| 2586 | data = htole32(IWI_POWER_MODE_MAX); |
| 2587 | } else |
| 2588 | data = htole32(IWI_POWER_MODE_CAM); |
| 2589 | |
| 2590 | DPRINTF(("Setting power mode to %u\n", le32toh(data))); |
| 2591 | return iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data); |
| 2592 | } |
| 2593 | |
| 2594 | static int |
| 2595 | iwi_setwepkeys(struct iwi_softc *sc, struct ieee80211vap *vap) |
| 2596 | { |
| 2597 | struct iwi_wep_key wepkey; |
| 2598 | struct ieee80211_key *wk; |
| 2599 | int error, i; |
| 2600 | |
| 2601 | for (i = 0; i < IEEE80211_WEP_NKID; i++) { |
| 2602 | wk = &vap->iv_nw_keys[i]; |
| 2603 | |
| 2604 | wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; |
| 2605 | wepkey.idx = i; |
| 2606 | wepkey.len = wk->wk_keylen; |
| 2607 | memset(wepkey.key, 0, sizeof wepkey.key); |
| 2608 | memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); |
| 2609 | DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx, |
| 2610 | wepkey.len)); |
| 2611 | error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, |
| 2612 | sizeof wepkey); |
| 2613 | if (error != 0) |
| 2614 | return error; |
| 2615 | } |
| 2616 | return 0; |
| 2617 | } |
| 2618 | |
| 2619 | static int |
| 2620 | iwi_config(struct iwi_softc *sc) |
| 2621 | { |
| 2622 | struct ieee80211com *ic = &sc->sc_ic; |
| 2623 | struct iwi_configuration config; |
| 2624 | struct iwi_rateset rs; |
| 2625 | struct iwi_txpower power; |
| 2626 | uint32_t data; |
| 2627 | int error, i; |
| 2628 | |
| 2629 | IWI_LOCK_ASSERT(sc); |
| 2630 | |
| 2631 | #if defined(__DragonFly__) |
| 2632 | DPRINTF(("Setting MAC address to %s\n", ether_sprintf(ic->ic_macaddr))); |
| 2633 | #else |
| 2634 | DPRINTF(("Setting MAC address to %6D\n", ic->ic_macaddr, ":")); |
| 2635 | #endif |
| 2636 | error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_macaddr, |
| 2637 | IEEE80211_ADDR_LEN); |
| 2638 | if (error != 0) |
| 2639 | return error; |
| 2640 | |
| 2641 | memset(&config, 0, sizeof config); |
| 2642 | config.bluetooth_coexistence = sc->bluetooth; |
| 2643 | config.silence_threshold = 0x1e; |
| 2644 | config.antenna = sc->antenna; |
| 2645 | config.multicast_enabled = 1; |
| 2646 | config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; |
| 2647 | config.disable_unicast_decryption = 1; |
| 2648 | config.disable_multicast_decryption = 1; |
| 2649 | if (ic->ic_opmode == IEEE80211_M_MONITOR) { |
| 2650 | config.allow_invalid_frames = 1; |
| 2651 | config.allow_beacon_and_probe_resp = 1; |
| 2652 | config.allow_mgt = 1; |
| 2653 | } |
| 2654 | DPRINTF(("Configuring adapter\n")); |
| 2655 | error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config); |
| 2656 | if (error != 0) |
| 2657 | return error; |
| 2658 | if (ic->ic_opmode == IEEE80211_M_IBSS) { |
| 2659 | power.mode = IWI_MODE_11B; |
| 2660 | power.nchan = 11; |
| 2661 | for (i = 0; i < 11; i++) { |
| 2662 | power.chan[i].chan = i + 1; |
| 2663 | power.chan[i].power = IWI_TXPOWER_MAX; |
| 2664 | } |
| 2665 | DPRINTF(("Setting .11b channels tx power\n")); |
| 2666 | error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power); |
| 2667 | if (error != 0) |
| 2668 | return error; |
| 2669 | |
| 2670 | power.mode = IWI_MODE_11G; |
| 2671 | DPRINTF(("Setting .11g channels tx power\n")); |
| 2672 | error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power); |
| 2673 | if (error != 0) |
| 2674 | return error; |
| 2675 | } |
| 2676 | |
| 2677 | memset(&rs, 0, sizeof rs); |
| 2678 | rs.mode = IWI_MODE_11G; |
| 2679 | rs.type = IWI_RATESET_TYPE_SUPPORTED; |
| 2680 | rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; |
| 2681 | memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, |
| 2682 | rs.nrates); |
| 2683 | DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); |
| 2684 | error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); |
| 2685 | if (error != 0) |
| 2686 | return error; |
| 2687 | |
| 2688 | memset(&rs, 0, sizeof rs); |
| 2689 | rs.mode = IWI_MODE_11A; |
| 2690 | rs.type = IWI_RATESET_TYPE_SUPPORTED; |
| 2691 | rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; |
| 2692 | memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, |
| 2693 | rs.nrates); |
| 2694 | DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); |
| 2695 | error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); |
| 2696 | if (error != 0) |
| 2697 | return error; |
| 2698 | |
| 2699 | data = htole32(karc4random()); |
| 2700 | DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); |
| 2701 | error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data); |
| 2702 | if (error != 0) |
| 2703 | return error; |
| 2704 | |
| 2705 | /* enable adapter */ |
| 2706 | DPRINTF(("Enabling adapter\n")); |
| 2707 | return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0); |
| 2708 | } |
| 2709 | |
| 2710 | static __inline void |
| 2711 | set_scan_type(struct iwi_scan_ext *scan, int ix, int scan_type) |
| 2712 | { |
| 2713 | uint8_t *st = &scan->scan_type[ix / 2]; |
| 2714 | if (ix % 2) |
| 2715 | *st = (*st & 0xf0) | ((scan_type & 0xf) << 0); |
| 2716 | else |
| 2717 | *st = (*st & 0x0f) | ((scan_type & 0xf) << 4); |
| 2718 | } |
| 2719 | |
| 2720 | static int |
| 2721 | scan_type(const struct ieee80211_scan_state *ss, |
| 2722 | const struct ieee80211_channel *chan) |
| 2723 | { |
| 2724 | /* We can only set one essid for a directed scan */ |
| 2725 | if (ss->ss_nssid != 0) |
| 2726 | return IWI_SCAN_TYPE_BDIRECTED; |
| 2727 | if ((ss->ss_flags & IEEE80211_SCAN_ACTIVE) && |
| 2728 | (chan->ic_flags & IEEE80211_CHAN_PASSIVE) == 0) |
| 2729 | return IWI_SCAN_TYPE_BROADCAST; |
| 2730 | return IWI_SCAN_TYPE_PASSIVE; |
| 2731 | } |
| 2732 | |
| 2733 | static __inline int |
| 2734 | scan_band(const struct ieee80211_channel *c) |
| 2735 | { |
| 2736 | return IEEE80211_IS_CHAN_5GHZ(c) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ; |
| 2737 | } |
| 2738 | |
| 2739 | static void |
| 2740 | iwi_monitor_scan(void *arg, int npending) |
| 2741 | { |
| 2742 | struct iwi_softc *sc = arg; |
| 2743 | IWI_LOCK_DECL; |
| 2744 | |
| 2745 | IWI_LOCK(sc); |
| 2746 | (void) iwi_scanchan(sc, 2000, 0); |
| 2747 | IWI_UNLOCK(sc); |
| 2748 | } |
| 2749 | |
| 2750 | /* |
| 2751 | * Start a scan on the current channel or all channels. |
| 2752 | */ |
| 2753 | static int |
| 2754 | iwi_scanchan(struct iwi_softc *sc, unsigned long maxdwell, int allchan) |
| 2755 | { |
| 2756 | struct ieee80211com *ic = &sc->sc_ic; |
| 2757 | struct ieee80211_channel *chan; |
| 2758 | struct ieee80211_scan_state *ss; |
| 2759 | struct iwi_scan_ext scan; |
| 2760 | int error = 0; |
| 2761 | |
| 2762 | IWI_LOCK_ASSERT(sc); |
| 2763 | if (sc->fw_state == IWI_FW_SCANNING) { |
| 2764 | /* |
| 2765 | * This should not happen as we only trigger scan_next after |
| 2766 | * completion |
| 2767 | */ |
| 2768 | DPRINTF(("%s: called too early - still scanning\n", __func__)); |
| 2769 | return (EBUSY); |
| 2770 | } |
| 2771 | IWI_STATE_BEGIN(sc, IWI_FW_SCANNING); |
| 2772 | |
| 2773 | ss = ic->ic_scan; |
| 2774 | |
| 2775 | memset(&scan, 0, sizeof scan); |
| 2776 | scan.full_scan_index = htole32(++sc->sc_scangen); |
| 2777 | scan.dwell_time[IWI_SCAN_TYPE_PASSIVE] = htole16(maxdwell); |
| 2778 | if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) { |
| 2779 | /* |
| 2780 | * Use very short dwell times for when we send probe request |
| 2781 | * frames. Without this bg scans hang. Ideally this should |
| 2782 | * be handled with early-termination as done by net80211 but |
| 2783 | * that's not feasible (aborting a scan is problematic). |
| 2784 | */ |
| 2785 | scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(30); |
| 2786 | scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(30); |
| 2787 | } else { |
| 2788 | scan.dwell_time[IWI_SCAN_TYPE_BROADCAST] = htole16(maxdwell); |
| 2789 | scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED] = htole16(maxdwell); |
| 2790 | } |
| 2791 | |
| 2792 | /* We can only set one essid for a directed scan */ |
| 2793 | if (ss->ss_nssid != 0) { |
| 2794 | error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ss->ss_ssid[0].ssid, |
| 2795 | ss->ss_ssid[0].len); |
| 2796 | if (error) |
| 2797 | return (error); |
| 2798 | } |
| 2799 | |
| 2800 | if (allchan) { |
| 2801 | int i, next, band, b, bstart; |
| 2802 | /* |
| 2803 | * Convert scan list to run-length encoded channel list |
| 2804 | * the firmware requires (preserving the order setup by |
| 2805 | * net80211). The first entry in each run specifies the |
| 2806 | * band and the count of items in the run. |
| 2807 | */ |
| 2808 | next = 0; /* next open slot */ |
| 2809 | bstart = 0; /* NB: not needed, silence compiler */ |
| 2810 | band = -1; /* NB: impossible value */ |
| 2811 | KASSERT(ss->ss_last > 0, ("no channels")); |
| 2812 | for (i = 0; i < ss->ss_last; i++) { |
| 2813 | chan = ss->ss_chans[i]; |
| 2814 | b = scan_band(chan); |
| 2815 | if (b != band) { |
| 2816 | if (band != -1) |
| 2817 | scan.channels[bstart] = |
| 2818 | (next - bstart) | band; |
| 2819 | /* NB: this allocates a slot for the run-len */ |
| 2820 | band = b, bstart = next++; |
| 2821 | } |
| 2822 | if (next >= IWI_SCAN_CHANNELS) { |
| 2823 | DPRINTF(("truncating scan list\n")); |
| 2824 | break; |
| 2825 | } |
| 2826 | scan.channels[next] = ieee80211_chan2ieee(ic, chan); |
| 2827 | set_scan_type(&scan, next, scan_type(ss, chan)); |
| 2828 | next++; |
| 2829 | } |
| 2830 | scan.channels[bstart] = (next - bstart) | band; |
| 2831 | } else { |
| 2832 | /* Scan the current channel only */ |
| 2833 | chan = ic->ic_curchan; |
| 2834 | scan.channels[0] = 1 | scan_band(chan); |
| 2835 | scan.channels[1] = ieee80211_chan2ieee(ic, chan); |
| 2836 | set_scan_type(&scan, 1, scan_type(ss, chan)); |
| 2837 | } |
| 2838 | #ifdef IWI_DEBUG |
| 2839 | if (iwi_debug > 0) { |
| 2840 | static const char *scantype[8] = |
| 2841 | { "PSTOP", "PASV", "DIR", "BCAST", "BDIR", "5", "6", "7" }; |
| 2842 | int i; |
| 2843 | kprintf("Scan request: index %u dwell %d/%d/%d\n" |
| 2844 | , le32toh(scan.full_scan_index) |
| 2845 | , le16toh(scan.dwell_time[IWI_SCAN_TYPE_PASSIVE]) |
| 2846 | , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BROADCAST]) |
| 2847 | , le16toh(scan.dwell_time[IWI_SCAN_TYPE_BDIRECTED]) |
| 2848 | ); |
| 2849 | i = 0; |
| 2850 | do { |
| 2851 | int run = scan.channels[i]; |
| 2852 | if (run == 0) |
| 2853 | break; |
| 2854 | kprintf("Scan %d %s channels:", run & 0x3f, |
| 2855 | run & IWI_CHAN_2GHZ ? "2.4GHz" : "5GHz"); |
| 2856 | for (run &= 0x3f, i++; run > 0; run--, i++) { |
| 2857 | uint8_t type = scan.scan_type[i/2]; |
| 2858 | kprintf(" %u/%s", scan.channels[i], |
| 2859 | scantype[(i & 1 ? type : type>>4) & 7]); |
| 2860 | } |
| 2861 | kprintf("\n"); |
| 2862 | } while (i < IWI_SCAN_CHANNELS); |
| 2863 | } |
| 2864 | #endif |
| 2865 | |
| 2866 | return (iwi_cmd(sc, IWI_CMD_SCAN_EXT, &scan, sizeof scan)); |
| 2867 | } |
| 2868 | |
| 2869 | static int |
| 2870 | iwi_set_sensitivity(struct iwi_softc *sc, int8_t rssi_dbm) |
| 2871 | { |
| 2872 | struct iwi_sensitivity sens; |
| 2873 | |
| 2874 | DPRINTF(("Setting sensitivity to %d\n", rssi_dbm)); |
| 2875 | |
| 2876 | memset(&sens, 0, sizeof sens); |
| 2877 | sens.rssi = htole16(rssi_dbm); |
| 2878 | return iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &sens, sizeof sens); |
| 2879 | } |
| 2880 | |
| 2881 | static int |
| 2882 | iwi_auth_and_assoc(struct iwi_softc *sc, struct ieee80211vap *vap) |
| 2883 | { |
| 2884 | struct ieee80211com *ic = vap->iv_ic; |
| 2885 | struct ifnet *ifp = vap->iv_ifp; |
| 2886 | struct ieee80211_node *ni; |
| 2887 | struct iwi_configuration config; |
| 2888 | struct iwi_associate *assoc = &sc->assoc; |
| 2889 | struct iwi_rateset rs; |
| 2890 | uint16_t capinfo; |
| 2891 | uint32_t data; |
| 2892 | int error, mode; |
| 2893 | |
| 2894 | IWI_LOCK_ASSERT(sc); |
| 2895 | |
| 2896 | ni = ieee80211_ref_node(vap->iv_bss); |
| 2897 | |
| 2898 | if (sc->flags & IWI_FLAG_ASSOCIATED) { |
| 2899 | DPRINTF(("Already associated\n")); |
| 2900 | return (-1); |
| 2901 | } |
| 2902 | |
| 2903 | IWI_STATE_BEGIN(sc, IWI_FW_ASSOCIATING); |
| 2904 | error = 0; |
| 2905 | mode = 0; |
| 2906 | |
| 2907 | if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) |
| 2908 | mode = IWI_MODE_11A; |
| 2909 | else if (IEEE80211_IS_CHAN_G(ic->ic_curchan)) |
| 2910 | mode = IWI_MODE_11G; |
| 2911 | if (IEEE80211_IS_CHAN_B(ic->ic_curchan)) |
| 2912 | mode = IWI_MODE_11B; |
| 2913 | |
| 2914 | if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { |
| 2915 | memset(&config, 0, sizeof config); |
| 2916 | config.bluetooth_coexistence = sc->bluetooth; |
| 2917 | config.antenna = sc->antenna; |
| 2918 | config.multicast_enabled = 1; |
| 2919 | if (mode == IWI_MODE_11G) |
| 2920 | config.use_protection = 1; |
| 2921 | config.answer_pbreq = |
| 2922 | (vap->iv_opmode == IEEE80211_M_IBSS) ? 1 : 0; |
| 2923 | config.disable_unicast_decryption = 1; |
| 2924 | config.disable_multicast_decryption = 1; |
| 2925 | DPRINTF(("Configuring adapter\n")); |
| 2926 | error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config); |
| 2927 | if (error != 0) |
| 2928 | goto done; |
| 2929 | } |
| 2930 | |
| 2931 | #ifdef IWI_DEBUG |
| 2932 | if (iwi_debug > 0) { |
| 2933 | kprintf("Setting ESSID to "); |
| 2934 | ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); |
| 2935 | kprintf("\n"); |
| 2936 | } |
| 2937 | #endif |
| 2938 | error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen); |
| 2939 | if (error != 0) |
| 2940 | goto done; |
| 2941 | |
| 2942 | error = iwi_setpowermode(sc, vap); |
| 2943 | if (error != 0) |
| 2944 | goto done; |
| 2945 | |
| 2946 | data = htole32(vap->iv_rtsthreshold); |
| 2947 | DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); |
| 2948 | error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data); |
| 2949 | if (error != 0) |
| 2950 | goto done; |
| 2951 | |
| 2952 | data = htole32(vap->iv_fragthreshold); |
| 2953 | DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); |
| 2954 | error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data); |
| 2955 | if (error != 0) |
| 2956 | goto done; |
| 2957 | |
| 2958 | /* the rate set has already been "negotiated" */ |
| 2959 | memset(&rs, 0, sizeof rs); |
| 2960 | rs.mode = mode; |
| 2961 | rs.type = IWI_RATESET_TYPE_NEGOTIATED; |
| 2962 | rs.nrates = ni->ni_rates.rs_nrates; |
| 2963 | if (rs.nrates > IWI_RATESET_SIZE) { |
| 2964 | DPRINTF(("Truncating negotiated rate set from %u\n", |
| 2965 | rs.nrates)); |
| 2966 | rs.nrates = IWI_RATESET_SIZE; |
| 2967 | } |
| 2968 | memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); |
| 2969 | DPRINTF(("Setting negotiated rates (%u)\n", rs.nrates)); |
| 2970 | error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs); |
| 2971 | if (error != 0) |
| 2972 | goto done; |
| 2973 | |
| 2974 | memset(assoc, 0, sizeof *assoc); |
| 2975 | |
| 2976 | if ((vap->iv_flags & IEEE80211_F_WME) && ni->ni_ies.wme_ie != NULL) { |
| 2977 | /* NB: don't treat WME setup as failure */ |
| 2978 | if (iwi_wme_setparams(sc) == 0 && iwi_wme_setie(sc) == 0) |
| 2979 | assoc->policy |= htole16(IWI_POLICY_WME); |
| 2980 | /* XXX complain on failure? */ |
| 2981 | } |
| 2982 | |
| 2983 | if (vap->iv_appie_wpa != NULL) { |
| 2984 | struct ieee80211_appie *ie = vap->iv_appie_wpa; |
| 2985 | |
| 2986 | DPRINTF(("Setting optional IE (len=%u)\n", ie->ie_len)); |
| 2987 | error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ie->ie_data, ie->ie_len); |
| 2988 | if (error != 0) |
| 2989 | goto done; |
| 2990 | } |
| 2991 | |
| 2992 | error = iwi_set_sensitivity(sc, ic->ic_node_getrssi(ni)); |
| 2993 | if (error != 0) |
| 2994 | goto done; |
| 2995 | |
| 2996 | assoc->mode = mode; |
| 2997 | assoc->chan = ic->ic_curchan->ic_ieee; |
| 2998 | /* |
| 2999 | * NB: do not arrange for shared key auth w/o privacy |
| 3000 | * (i.e. a wep key); it causes a firmware error. |
| 3001 | */ |
| 3002 | if ((vap->iv_flags & IEEE80211_F_PRIVACY) && |
| 3003 | ni->ni_authmode == IEEE80211_AUTH_SHARED) { |
| 3004 | assoc->auth = IWI_AUTH_SHARED; |
| 3005 | /* |
| 3006 | * It's possible to have privacy marked but no default |
| 3007 | * key setup. This typically is due to a user app bug |
| 3008 | * but if we blindly grab the key the firmware will |
| 3009 | * barf so avoid it for now. |
| 3010 | */ |
| 3011 | if (vap->iv_def_txkey != IEEE80211_KEYIX_NONE) |
| 3012 | assoc->auth |= vap->iv_def_txkey << 4; |
| 3013 | |
| 3014 | error = iwi_setwepkeys(sc, vap); |
| 3015 | if (error != 0) |
| 3016 | goto done; |
| 3017 | } |
| 3018 | if (vap->iv_flags & IEEE80211_F_WPA) |
| 3019 | assoc->policy |= htole16(IWI_POLICY_WPA); |
| 3020 | if (vap->iv_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) |
| 3021 | assoc->type = IWI_HC_IBSS_START; |
| 3022 | else |
| 3023 | assoc->type = IWI_HC_ASSOC; |
| 3024 | memcpy(assoc->tstamp, ni->ni_tstamp.data, 8); |
| 3025 | |
| 3026 | if (vap->iv_opmode == IEEE80211_M_IBSS) |
| 3027 | capinfo = IEEE80211_CAPINFO_IBSS; |
| 3028 | else |
| 3029 | capinfo = IEEE80211_CAPINFO_ESS; |
| 3030 | if (vap->iv_flags & IEEE80211_F_PRIVACY) |
| 3031 | capinfo |= IEEE80211_CAPINFO_PRIVACY; |
| 3032 | if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && |
| 3033 | IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) |
| 3034 | capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; |
| 3035 | if (ni->ni_capinfo & IEEE80211_CAPINFO_SHORT_SLOTTIME) |
| 3036 | capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; |
| 3037 | assoc->capinfo = htole16(capinfo); |
| 3038 | |
| 3039 | assoc->lintval = htole16(ic->ic_lintval); |
| 3040 | assoc->intval = htole16(ni->ni_intval); |
| 3041 | IEEE80211_ADDR_COPY(assoc->bssid, ni->ni_bssid); |
| 3042 | if (vap->iv_opmode == IEEE80211_M_IBSS) |
| 3043 | IEEE80211_ADDR_COPY(assoc->dst, ifp->if_broadcastaddr); |
| 3044 | else |
| 3045 | IEEE80211_ADDR_COPY(assoc->dst, ni->ni_bssid); |
| 3046 | |
| 3047 | #if defined(__DragonFly__) |
| 3048 | DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " |
| 3049 | "auth %u capinfo 0x%x lintval %u bintval %u\n", |
| 3050 | assoc->type == IWI_HC_IBSS_START ? "Start" : "Join", |
| 3051 | ether_sprintf(assoc->bssid), ether_sprintf(assoc->dst), |
| 3052 | assoc->chan, le16toh(assoc->policy), assoc->auth, |
| 3053 | le16toh(assoc->capinfo), le16toh(assoc->lintval), |
| 3054 | le16toh(assoc->intval))); |
| 3055 | #else |
| 3056 | DPRINTF(("%s bssid %6D dst %6D channel %u policy 0x%x " |
| 3057 | "auth %u capinfo 0x%x lintval %u bintval %u\n", |
| 3058 | assoc->type == IWI_HC_IBSS_START ? "Start" : "Join", |
| 3059 | assoc->bssid, ":", assoc->dst, ":", |
| 3060 | assoc->chan, le16toh(assoc->policy), assoc->auth, |
| 3061 | le16toh(assoc->capinfo), le16toh(assoc->lintval), |
| 3062 | le16toh(assoc->intval))); |
| 3063 | #endif |
| 3064 | error = iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc); |
| 3065 | done: |
| 3066 | ieee80211_free_node(ni); |
| 3067 | if (error) |
| 3068 | IWI_STATE_END(sc, IWI_FW_ASSOCIATING); |
| 3069 | |
| 3070 | return (error); |
| 3071 | } |
| 3072 | |
| 3073 | static void |
| 3074 | iwi_disassoc(void *arg, int pending) |
| 3075 | { |
| 3076 | struct iwi_softc *sc = arg; |
| 3077 | IWI_LOCK_DECL; |
| 3078 | |
| 3079 | IWI_LOCK(sc); |
| 3080 | iwi_disassociate(sc, 0); |
| 3081 | IWI_UNLOCK(sc); |
| 3082 | } |
| 3083 | |
| 3084 | static int |
| 3085 | iwi_disassociate(struct iwi_softc *sc, int quiet) |
| 3086 | { |
| 3087 | struct iwi_associate *assoc = &sc->assoc; |
| 3088 | |
| 3089 | if ((sc->flags & IWI_FLAG_ASSOCIATED) == 0) { |
| 3090 | DPRINTF(("Not associated\n")); |
| 3091 | return (-1); |
| 3092 | } |
| 3093 | |
| 3094 | IWI_STATE_BEGIN(sc, IWI_FW_DISASSOCIATING); |
| 3095 | |
| 3096 | if (quiet) |
| 3097 | assoc->type = IWI_HC_DISASSOC_QUIET; |
| 3098 | else |
| 3099 | assoc->type = IWI_HC_DISASSOC; |
| 3100 | |
| 3101 | #if defined(__DragonFly__) |
| 3102 | DPRINTF(("Trying to disassociate from %s channel %u\n", |
| 3103 | ether_sprintf(assoc->bssid), assoc->chan)); |
| 3104 | #else |
| 3105 | DPRINTF(("Trying to disassociate from %6D channel %u\n", |
| 3106 | assoc->bssid, ":", assoc->chan)); |
| 3107 | #endif |
| 3108 | return iwi_cmd(sc, IWI_CMD_ASSOCIATE, assoc, sizeof *assoc); |
| 3109 | } |
| 3110 | |
| 3111 | /* |
| 3112 | * release dma resources for the firmware |
| 3113 | */ |
| 3114 | static void |
| 3115 | iwi_release_fw_dma(struct iwi_softc *sc) |
| 3116 | { |
| 3117 | if (sc->fw_flags & IWI_FW_HAVE_PHY) |
| 3118 | bus_dmamap_unload(sc->fw_dmat, sc->fw_map); |
| 3119 | if (sc->fw_flags & IWI_FW_HAVE_MAP) |
| 3120 | bus_dmamem_free(sc->fw_dmat, sc->fw_virtaddr, sc->fw_map); |
| 3121 | if (sc->fw_flags & IWI_FW_HAVE_DMAT) |
| 3122 | bus_dma_tag_destroy(sc->fw_dmat); |
| 3123 | |
| 3124 | sc->fw_flags = 0; |
| 3125 | sc->fw_dma_size = 0; |
| 3126 | sc->fw_dmat = NULL; |
| 3127 | sc->fw_map = NULL; |
| 3128 | sc->fw_physaddr = 0; |
| 3129 | sc->fw_virtaddr = NULL; |
| 3130 | } |
| 3131 | |
| 3132 | /* |
| 3133 | * allocate the dma descriptor for the firmware. |
| 3134 | * Return 0 on success, 1 on error. |
| 3135 | * Must be called unlocked, protected by IWI_FLAG_FW_LOADING. |
| 3136 | */ |
| 3137 | static int |
| 3138 | iwi_init_fw_dma(struct iwi_softc *sc, int size) |
| 3139 | { |
| 3140 | if (sc->fw_dma_size >= size) |
| 3141 | return 0; |
| 3142 | #if defined(__DragonFly__) |
| 3143 | if (bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, |
| 3144 | BUS_SPACE_MAXADDR, size, 1, size, |
| 3145 | 0, &sc->fw_dmat) != 0) { |
| 3146 | #else |
| 3147 | if (bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, |
| 3148 | BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, |
| 3149 | size, 1, size, 0, NULL, NULL, &sc->fw_dmat) != 0) { |
| 3150 | #endif |
| 3151 | device_printf(sc->sc_dev, |
| 3152 | "could not create firmware DMA tag\n"); |
| 3153 | goto error; |
| 3154 | } |
| 3155 | sc->fw_flags |= IWI_FW_HAVE_DMAT; |
| 3156 | if (bus_dmamem_alloc(sc->fw_dmat, &sc->fw_virtaddr, 0, |
| 3157 | &sc->fw_map) != 0) { |
| 3158 | device_printf(sc->sc_dev, |
| 3159 | "could not allocate firmware DMA memory\n"); |
| 3160 | goto error; |
| 3161 | } |
| 3162 | sc->fw_flags |= IWI_FW_HAVE_MAP; |
| 3163 | if (bus_dmamap_load(sc->fw_dmat, sc->fw_map, sc->fw_virtaddr, |
| 3164 | size, iwi_dma_map_addr, &sc->fw_physaddr, 0) != 0) { |
| 3165 | device_printf(sc->sc_dev, "could not load firmware DMA map\n"); |
| 3166 | goto error; |
| 3167 | } |
| 3168 | sc->fw_flags |= IWI_FW_HAVE_PHY; |
| 3169 | sc->fw_dma_size = size; |
| 3170 | return 0; |
| 3171 | |
| 3172 | error: |
| 3173 | iwi_release_fw_dma(sc); |
| 3174 | return 1; |
| 3175 | } |
| 3176 | |
| 3177 | static void |
| 3178 | iwi_init_locked(struct iwi_softc *sc) |
| 3179 | { |
| 3180 | struct iwi_rx_data *data; |
| 3181 | int i; |
| 3182 | |
| 3183 | IWI_LOCK_ASSERT(sc); |
| 3184 | |
| 3185 | if (sc->fw_state == IWI_FW_LOADING) { |
| 3186 | device_printf(sc->sc_dev, "%s: already loading\n", __func__); |
| 3187 | return; /* XXX: condvar? */ |
| 3188 | } |
| 3189 | |
| 3190 | iwi_stop_locked(sc); |
| 3191 | |
| 3192 | IWI_STATE_BEGIN(sc, IWI_FW_LOADING); |
| 3193 | |
| 3194 | if (iwi_reset(sc) != 0) { |
| 3195 | device_printf(sc->sc_dev, "could not reset adapter\n"); |
| 3196 | goto fail; |
| 3197 | } |
| 3198 | if (iwi_load_firmware(sc, &sc->fw_boot) != 0) { |
| 3199 | device_printf(sc->sc_dev, |
| 3200 | "could not load boot firmware %s\n", sc->fw_boot.name); |
| 3201 | goto fail; |
| 3202 | } |
| 3203 | if (iwi_load_ucode(sc, &sc->fw_uc) != 0) { |
| 3204 | device_printf(sc->sc_dev, |
| 3205 | "could not load microcode %s\n", sc->fw_uc.name); |
| 3206 | goto fail; |
| 3207 | } |
| 3208 | |
| 3209 | iwi_stop_master(sc); |
| 3210 | |
| 3211 | CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.physaddr); |
| 3212 | CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); |
| 3213 | CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); |
| 3214 | |
| 3215 | CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].physaddr); |
| 3216 | CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); |
| 3217 | CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); |
| 3218 | |
| 3219 | CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].physaddr); |
| 3220 | CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); |
| 3221 | CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); |
| 3222 | |
| 3223 | CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].physaddr); |
| 3224 | CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); |
| 3225 | CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); |
| 3226 | |
| 3227 | CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].physaddr); |
| 3228 | CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); |
| 3229 | CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); |
| 3230 | |
| 3231 | for (i = 0; i < sc->rxq.count; i++) { |
| 3232 | data = &sc->rxq.data[i]; |
| 3233 | CSR_WRITE_4(sc, data->reg, data->physaddr); |
| 3234 | } |
| 3235 | |
| 3236 | CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count - 1); |
| 3237 | |
| 3238 | if (iwi_load_firmware(sc, &sc->fw_fw) != 0) { |
| 3239 | device_printf(sc->sc_dev, |
| 3240 | "could not load main firmware %s\n", sc->fw_fw.name); |
| 3241 | goto fail; |
| 3242 | } |
| 3243 | sc->flags |= IWI_FLAG_FW_INITED; |
| 3244 | |
| 3245 | IWI_STATE_END(sc, IWI_FW_LOADING); |
| 3246 | |
| 3247 | if (iwi_config(sc) != 0) { |
| 3248 | device_printf(sc->sc_dev, "unable to enable adapter\n"); |
| 3249 | goto fail2; |
| 3250 | } |
| 3251 | |
| 3252 | callout_reset(&sc->sc_wdtimer, hz, iwi_watchdog, sc); |
| 3253 | sc->sc_running = 1; |
| 3254 | return; |
| 3255 | fail: |
| 3256 | IWI_STATE_END(sc, IWI_FW_LOADING); |
| 3257 | fail2: |
| 3258 | iwi_stop_locked(sc); |
| 3259 | } |
| 3260 | |
| 3261 | static void |
| 3262 | iwi_init(void *priv) |
| 3263 | { |
| 3264 | struct iwi_softc *sc = priv; |
| 3265 | struct ieee80211com *ic = &sc->sc_ic; |
| 3266 | IWI_LOCK_DECL; |
| 3267 | |
| 3268 | IWI_LOCK(sc); |
| 3269 | iwi_init_locked(sc); |
| 3270 | IWI_UNLOCK(sc); |
| 3271 | |
| 3272 | if (sc->sc_running) |
| 3273 | ieee80211_start_all(ic); |
| 3274 | } |
| 3275 | |
| 3276 | static void |
| 3277 | iwi_stop_locked(void *priv) |
| 3278 | { |
| 3279 | struct iwi_softc *sc = priv; |
| 3280 | |
| 3281 | IWI_LOCK_ASSERT(sc); |
| 3282 | |
| 3283 | sc->sc_running = 0; |
| 3284 | |
| 3285 | if (sc->sc_softled) { |
| 3286 | callout_stop(&sc->sc_ledtimer); |
| 3287 | sc->sc_blinking = 0; |
| 3288 | } |
| 3289 | callout_stop(&sc->sc_wdtimer); |
| 3290 | callout_stop(&sc->sc_rftimer); |
| 3291 | |
| 3292 | iwi_stop_master(sc); |
| 3293 | |
| 3294 | CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SOFT_RESET); |
| 3295 | |
| 3296 | /* reset rings */ |
| 3297 | iwi_reset_cmd_ring(sc, &sc->cmdq); |
| 3298 | iwi_reset_tx_ring(sc, &sc->txq[0]); |
| 3299 | iwi_reset_tx_ring(sc, &sc->txq[1]); |
| 3300 | iwi_reset_tx_ring(sc, &sc->txq[2]); |
| 3301 | iwi_reset_tx_ring(sc, &sc->txq[3]); |
| 3302 | iwi_reset_rx_ring(sc, &sc->rxq); |
| 3303 | |
| 3304 | sc->sc_tx_timer = 0; |
| 3305 | sc->sc_state_timer = 0; |
| 3306 | sc->sc_busy_timer = 0; |
| 3307 | sc->flags &= ~(IWI_FLAG_BUSY | IWI_FLAG_ASSOCIATED); |
| 3308 | sc->fw_state = IWI_FW_IDLE; |
| 3309 | wakeup(sc); |
| 3310 | } |
| 3311 | |
| 3312 | static void |
| 3313 | iwi_stop(struct iwi_softc *sc) |
| 3314 | { |
| 3315 | IWI_LOCK_DECL; |
| 3316 | |
| 3317 | IWI_LOCK(sc); |
| 3318 | iwi_stop_locked(sc); |
| 3319 | IWI_UNLOCK(sc); |
| 3320 | } |
| 3321 | |
| 3322 | static void |
| 3323 | iwi_restart(void *arg, int npending) |
| 3324 | { |
| 3325 | struct iwi_softc *sc = arg; |
| 3326 | |
| 3327 | iwi_init(sc); |
| 3328 | } |
| 3329 | |
| 3330 | /* |
| 3331 | * Return whether or not the radio is enabled in hardware |
| 3332 | * (i.e. the rfkill switch is "off"). |
| 3333 | */ |
| 3334 | static int |
| 3335 | iwi_getrfkill(struct iwi_softc *sc) |
| 3336 | { |
| 3337 | return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; |
| 3338 | } |
| 3339 | |
| 3340 | static void |
| 3341 | iwi_radio_on(void *arg, int pending) |
| 3342 | { |
| 3343 | struct iwi_softc *sc = arg; |
| 3344 | struct ieee80211com *ic = &sc->sc_ic; |
| 3345 | |
| 3346 | device_printf(sc->sc_dev, "radio turned on\n"); |
| 3347 | |
| 3348 | iwi_init(sc); |
| 3349 | ieee80211_notify_radio(ic, 1); |
| 3350 | } |
| 3351 | |
| 3352 | static void |
| 3353 | iwi_rfkill_poll(void *arg) |
| 3354 | { |
| 3355 | struct iwi_softc *sc = arg; |
| 3356 | |
| 3357 | IWI_LOCK_ASSERT(sc); |
| 3358 | |
| 3359 | /* |
| 3360 | * Check for a change in rfkill state. We get an |
| 3361 | * interrupt when a radio is disabled but not when |
| 3362 | * it is enabled so we must poll for the latter. |
| 3363 | */ |
| 3364 | if (!iwi_getrfkill(sc)) { |
| 3365 | ieee80211_runtask(&sc->sc_ic, &sc->sc_radiontask); |
| 3366 | return; |
| 3367 | } |
| 3368 | callout_reset(&sc->sc_rftimer, 2*hz, iwi_rfkill_poll, sc); |
| 3369 | } |
| 3370 | |
| 3371 | static void |
| 3372 | iwi_radio_off(void *arg, int pending) |
| 3373 | { |
| 3374 | struct iwi_softc *sc = arg; |
| 3375 | struct ieee80211com *ic = &sc->sc_ic; |
| 3376 | IWI_LOCK_DECL; |
| 3377 | |
| 3378 | device_printf(sc->sc_dev, "radio turned off\n"); |
| 3379 | |
| 3380 | ieee80211_notify_radio(ic, 0); |
| 3381 | |
| 3382 | IWI_LOCK(sc); |
| 3383 | iwi_stop_locked(sc); |
| 3384 | iwi_rfkill_poll(sc); |
| 3385 | IWI_UNLOCK(sc); |
| 3386 | } |
| 3387 | |
| 3388 | static int |
| 3389 | iwi_sysctl_stats(SYSCTL_HANDLER_ARGS) |
| 3390 | { |
| 3391 | struct iwi_softc *sc = arg1; |
| 3392 | uint32_t size, buf[128]; |
| 3393 | |
| 3394 | memset(buf, 0, sizeof buf); |
| 3395 | |
| 3396 | if (!(sc->flags & IWI_FLAG_FW_INITED)) |
| 3397 | return SYSCTL_OUT(req, buf, sizeof buf); |
| 3398 | |
| 3399 | size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); |
| 3400 | CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); |
| 3401 | |
| 3402 | return SYSCTL_OUT(req, buf, size); |
| 3403 | } |
| 3404 | |
| 3405 | static int |
| 3406 | iwi_sysctl_radio(SYSCTL_HANDLER_ARGS) |
| 3407 | { |
| 3408 | struct iwi_softc *sc = arg1; |
| 3409 | int val = !iwi_getrfkill(sc); |
| 3410 | |
| 3411 | return SYSCTL_OUT(req, &val, sizeof val); |
| 3412 | } |
| 3413 | |
| 3414 | /* |
| 3415 | * Add sysctl knobs. |
| 3416 | */ |
| 3417 | static void |
| 3418 | iwi_sysctlattach(struct iwi_softc *sc) |
| 3419 | { |
| 3420 | struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); |
| 3421 | struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); |
| 3422 | |
| 3423 | SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "radio", |
| 3424 | CTLTYPE_INT | CTLFLAG_RD, sc, 0, iwi_sysctl_radio, "I", |
| 3425 | "radio transmitter switch state (0=off, 1=on)"); |
| 3426 | |
| 3427 | SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "stats", |
| 3428 | CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, iwi_sysctl_stats, "S", |
| 3429 | "statistics"); |
| 3430 | |
| 3431 | sc->bluetooth = 0; |
| 3432 | SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "bluetooth", |
| 3433 | CTLFLAG_RW, &sc->bluetooth, 0, "bluetooth coexistence"); |
| 3434 | |
| 3435 | sc->antenna = IWI_ANTENNA_AUTO; |
| 3436 | SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "antenna", |
| 3437 | CTLFLAG_RW, &sc->antenna, 0, "antenna (0=auto)"); |
| 3438 | } |
| 3439 | |
| 3440 | /* |
| 3441 | * LED support. |
| 3442 | * |
| 3443 | * Different cards have different capabilities. Some have three |
| 3444 | * led's while others have only one. The linux ipw driver defines |
| 3445 | * led's for link state (associated or not), band (11a, 11g, 11b), |
| 3446 | * and for link activity. We use one led and vary the blink rate |
| 3447 | * according to the tx/rx traffic a la the ath driver. |
| 3448 | */ |
| 3449 | |
| 3450 | static __inline uint32_t |
| 3451 | iwi_toggle_event(uint32_t r) |
| 3452 | { |
| 3453 | return r &~ (IWI_RST_STANDBY | IWI_RST_GATE_ODMA | |
| 3454 | IWI_RST_GATE_IDMA | IWI_RST_GATE_ADMA); |
| 3455 | } |
| 3456 | |
| 3457 | static uint32_t |
| 3458 | iwi_read_event(struct iwi_softc *sc) |
| 3459 | { |
| 3460 | return MEM_READ_4(sc, IWI_MEM_EEPROM_EVENT); |
| 3461 | } |
| 3462 | |
| 3463 | static void |
| 3464 | iwi_write_event(struct iwi_softc *sc, uint32_t v) |
| 3465 | { |
| 3466 | MEM_WRITE_4(sc, IWI_MEM_EEPROM_EVENT, v); |
| 3467 | } |
| 3468 | |
| 3469 | static void |
| 3470 | iwi_led_done(void *arg) |
| 3471 | { |
| 3472 | struct iwi_softc *sc = arg; |
| 3473 | |
| 3474 | sc->sc_blinking = 0; |
| 3475 | } |
| 3476 | |
| 3477 | /* |
| 3478 | * Turn the activity LED off: flip the pin and then set a timer so no |
| 3479 | * update will happen for the specified duration. |
| 3480 | */ |
| 3481 | static void |
| 3482 | iwi_led_off(void *arg) |
| 3483 | { |
| 3484 | struct iwi_softc *sc = arg; |
| 3485 | uint32_t v; |
| 3486 | |
| 3487 | v = iwi_read_event(sc); |
| 3488 | v &= ~sc->sc_ledpin; |
| 3489 | iwi_write_event(sc, iwi_toggle_event(v)); |
| 3490 | callout_reset(&sc->sc_ledtimer, sc->sc_ledoff, iwi_led_done, sc); |
| 3491 | } |
| 3492 | |
| 3493 | /* |
| 3494 | * Blink the LED according to the specified on/off times. |
| 3495 | */ |
| 3496 | static void |
| 3497 | iwi_led_blink(struct iwi_softc *sc, int on, int off) |
| 3498 | { |
| 3499 | uint32_t v; |
| 3500 | |
| 3501 | v = iwi_read_event(sc); |
| 3502 | v |= sc->sc_ledpin; |
| 3503 | iwi_write_event(sc, iwi_toggle_event(v)); |
| 3504 | sc->sc_blinking = 1; |
| 3505 | sc->sc_ledoff = off; |
| 3506 | callout_reset(&sc->sc_ledtimer, on, iwi_led_off, sc); |
| 3507 | } |
| 3508 | |
| 3509 | static void |
| 3510 | iwi_led_event(struct iwi_softc *sc, int event) |
| 3511 | { |
| 3512 | /* NB: on/off times from the Atheros NDIS driver, w/ permission */ |
| 3513 | static const struct { |
| 3514 | u_int rate; /* tx/rx iwi rate */ |
| 3515 | u_int16_t timeOn; /* LED on time (ms) */ |
| 3516 | u_int16_t timeOff; /* LED off time (ms) */ |
| 3517 | } blinkrates[] = { |
| 3518 | { IWI_RATE_OFDM54, 40, 10 }, |
| 3519 | { IWI_RATE_OFDM48, 44, 11 }, |
| 3520 | { IWI_RATE_OFDM36, 50, 13 }, |
| 3521 | { IWI_RATE_OFDM24, 57, 14 }, |
| 3522 | { IWI_RATE_OFDM18, 67, 16 }, |
| 3523 | { IWI_RATE_OFDM12, 80, 20 }, |
| 3524 | { IWI_RATE_DS11, 100, 25 }, |
| 3525 | { IWI_RATE_OFDM9, 133, 34 }, |
| 3526 | { IWI_RATE_OFDM6, 160, 40 }, |
| 3527 | { IWI_RATE_DS5, 200, 50 }, |
| 3528 | { 6, 240, 58 }, /* XXX 3Mb/s if it existed */ |
| 3529 | { IWI_RATE_DS2, 267, 66 }, |
| 3530 | { IWI_RATE_DS1, 400, 100 }, |
| 3531 | { 0, 500, 130 }, /* unknown rate/polling */ |
| 3532 | }; |
| 3533 | uint32_t txrate; |
| 3534 | int j = 0; /* XXX silence compiler */ |
| 3535 | |
| 3536 | sc->sc_ledevent = ticks; /* time of last event */ |
| 3537 | if (sc->sc_blinking) /* don't interrupt active blink */ |
| 3538 | return; |
| 3539 | switch (event) { |
| 3540 | case IWI_LED_POLL: |
| 3541 | j = nitems(blinkrates)-1; |
| 3542 | break; |
| 3543 | case IWI_LED_TX: |
| 3544 | /* read current transmission rate from adapter */ |
| 3545 | txrate = CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE); |
| 3546 | if (blinkrates[sc->sc_txrix].rate != txrate) { |
| 3547 | for (j = 0; j < nitems(blinkrates)-1; j++) |
| 3548 | if (blinkrates[j].rate == txrate) |
| 3549 | break; |
| 3550 | sc->sc_txrix = j; |
| 3551 | } else |
| 3552 | j = sc->sc_txrix; |
| 3553 | break; |
| 3554 | case IWI_LED_RX: |
| 3555 | if (blinkrates[sc->sc_rxrix].rate != sc->sc_rxrate) { |
| 3556 | for (j = 0; j < nitems(blinkrates)-1; j++) |
| 3557 | if (blinkrates[j].rate == sc->sc_rxrate) |
| 3558 | break; |
| 3559 | sc->sc_rxrix = j; |
| 3560 | } else |
| 3561 | j = sc->sc_rxrix; |
| 3562 | break; |
| 3563 | } |
| 3564 | /* XXX beware of overflow */ |
| 3565 | iwi_led_blink(sc, (blinkrates[j].timeOn * hz) / 1000, |
| 3566 | (blinkrates[j].timeOff * hz) / 1000); |
| 3567 | } |
| 3568 | |
| 3569 | static int |
| 3570 | iwi_sysctl_softled(SYSCTL_HANDLER_ARGS) |
| 3571 | { |
| 3572 | struct iwi_softc *sc = arg1; |
| 3573 | int softled = sc->sc_softled; |
| 3574 | int error; |
| 3575 | |
| 3576 | error = sysctl_handle_int(oidp, &softled, 0, req); |
| 3577 | if (error || !req->newptr) |
| 3578 | return error; |
| 3579 | softled = (softled != 0); |
| 3580 | if (softled != sc->sc_softled) { |
| 3581 | if (softled) { |
| 3582 | uint32_t v = iwi_read_event(sc); |
| 3583 | v &= ~sc->sc_ledpin; |
| 3584 | iwi_write_event(sc, iwi_toggle_event(v)); |
| 3585 | } |
| 3586 | sc->sc_softled = softled; |
| 3587 | } |
| 3588 | return 0; |
| 3589 | } |
| 3590 | |
| 3591 | static void |
| 3592 | iwi_ledattach(struct iwi_softc *sc) |
| 3593 | { |
| 3594 | struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); |
| 3595 | struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); |
| 3596 | |
| 3597 | sc->sc_blinking = 0; |
| 3598 | sc->sc_ledstate = 1; |
| 3599 | sc->sc_ledidle = (2700*hz)/1000; /* 2.7sec */ |
| 3600 | #if defined(__DragonFly__) |
| 3601 | callout_init_lk(&sc->sc_ledtimer, &sc->sc_lock); |
| 3602 | #else |
| 3603 | callout_init_mtx(&sc->sc_ledtimer, &sc->sc_mtx, 0); |
| 3604 | #endif |
| 3605 | |
| 3606 | SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, |
| 3607 | "softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0, |
| 3608 | iwi_sysctl_softled, "I", "enable/disable software LED support"); |
| 3609 | SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, |
| 3610 | "ledpin", CTLFLAG_RW, &sc->sc_ledpin, 0, |
| 3611 | "pin setting to turn activity LED on"); |
| 3612 | SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, |
| 3613 | "ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0, |
| 3614 | "idle time for inactivity LED (ticks)"); |
| 3615 | /* XXX for debugging */ |
| 3616 | SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, |
| 3617 | "nictype", CTLFLAG_RD, &sc->sc_nictype, 0, |
| 3618 | "NIC type from EEPROM"); |
| 3619 | |
| 3620 | sc->sc_ledpin = IWI_RST_LED_ACTIVITY; |
| 3621 | sc->sc_softled = 1; |
| 3622 | |
| 3623 | sc->sc_nictype = (iwi_read_prom_word(sc, IWI_EEPROM_NIC) >> 8) & 0xff; |
| 3624 | if (sc->sc_nictype == 1) { |
| 3625 | /* |
| 3626 | * NB: led's are reversed. |
| 3627 | */ |
| 3628 | sc->sc_ledpin = IWI_RST_LED_ASSOCIATED; |
| 3629 | } |
| 3630 | } |
| 3631 | |
| 3632 | static void |
| 3633 | iwi_scan_start(struct ieee80211com *ic) |
| 3634 | { |
| 3635 | /* ignore */ |
| 3636 | } |
| 3637 | |
| 3638 | static void |
| 3639 | iwi_set_channel(struct ieee80211com *ic) |
| 3640 | { |
| 3641 | struct iwi_softc *sc = ic->ic_softc; |
| 3642 | |
| 3643 | if (sc->fw_state == IWI_FW_IDLE) |
| 3644 | iwi_setcurchan(sc, ic->ic_curchan->ic_ieee); |
| 3645 | } |
| 3646 | |
| 3647 | static void |
| 3648 | iwi_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) |
| 3649 | { |
| 3650 | struct ieee80211vap *vap = ss->ss_vap; |
| 3651 | struct iwi_softc *sc = vap->iv_ic->ic_softc; |
| 3652 | IWI_LOCK_DECL; |
| 3653 | |
| 3654 | IWI_LOCK(sc); |
| 3655 | if (iwi_scanchan(sc, maxdwell, 0)) |
| 3656 | ieee80211_cancel_scan(vap); |
| 3657 | IWI_UNLOCK(sc); |
| 3658 | } |
| 3659 | |
| 3660 | static void |
| 3661 | iwi_scan_mindwell(struct ieee80211_scan_state *ss) |
| 3662 | { |
| 3663 | /* NB: don't try to abort scan; wait for firmware to finish */ |
| 3664 | } |
| 3665 | |
| 3666 | static void |
| 3667 | iwi_scan_end(struct ieee80211com *ic) |
| 3668 | { |
| 3669 | struct iwi_softc *sc = ic->ic_softc; |
| 3670 | IWI_LOCK_DECL; |
| 3671 | |
| 3672 | IWI_LOCK(sc); |
| 3673 | sc->flags &= ~IWI_FLAG_CHANNEL_SCAN; |
| 3674 | /* NB: make sure we're still scanning */ |
| 3675 | if (sc->fw_state == IWI_FW_SCANNING) |
| 3676 | iwi_cmd(sc, IWI_CMD_ABORT_SCAN, NULL, 0); |
| 3677 | IWI_UNLOCK(sc); |
| 3678 | } |