| 1 | /* $NetBSD: if_iwi.c,v 1.100 2016/08/03 19:59:57 mlelstv Exp $ */ |
| 2 | /* $OpenBSD: if_iwi.c,v 1.111 2010/11/15 19:11:57 damien Exp $ */ |
| 3 | |
| 4 | /*- |
| 5 | * Copyright (c) 2004-2008 |
| 6 | * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. |
| 7 | * |
| 8 | * Permission to use, copy, modify, and distribute this software for any |
| 9 | * purpose with or without fee is hereby granted, provided that the above |
| 10 | * copyright notice and this permission notice appear in all copies. |
| 11 | * |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 13 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 14 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 15 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 16 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 17 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 18 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 19 | */ |
| 20 | |
| 21 | #include <sys/cdefs.h> |
| 22 | __KERNEL_RCSID(0, "$NetBSD: if_iwi.c,v 1.100 2016/08/03 19:59:57 mlelstv Exp $" ); |
| 23 | |
| 24 | /*- |
| 25 | * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver |
| 26 | * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm |
| 27 | */ |
| 28 | |
| 29 | |
| 30 | #include <sys/param.h> |
| 31 | #include <sys/sockio.h> |
| 32 | #include <sys/sysctl.h> |
| 33 | #include <sys/mbuf.h> |
| 34 | #include <sys/kernel.h> |
| 35 | #include <sys/socket.h> |
| 36 | #include <sys/systm.h> |
| 37 | #include <sys/malloc.h> |
| 38 | #include <sys/conf.h> |
| 39 | #include <sys/kauth.h> |
| 40 | #include <sys/proc.h> |
| 41 | #include <sys/cprng.h> |
| 42 | |
| 43 | #include <sys/bus.h> |
| 44 | #include <machine/endian.h> |
| 45 | #include <sys/intr.h> |
| 46 | |
| 47 | #include <dev/firmload.h> |
| 48 | |
| 49 | #include <dev/pci/pcireg.h> |
| 50 | #include <dev/pci/pcivar.h> |
| 51 | #include <dev/pci/pcidevs.h> |
| 52 | |
| 53 | #include <net/bpf.h> |
| 54 | #include <net/if.h> |
| 55 | #include <net/if_arp.h> |
| 56 | #include <net/if_dl.h> |
| 57 | #include <net/if_ether.h> |
| 58 | #include <net/if_media.h> |
| 59 | #include <net/if_types.h> |
| 60 | |
| 61 | #include <net80211/ieee80211_var.h> |
| 62 | #include <net80211/ieee80211_radiotap.h> |
| 63 | |
| 64 | #include <netinet/in.h> |
| 65 | #include <netinet/in_systm.h> |
| 66 | #include <netinet/in_var.h> |
| 67 | #include <netinet/ip.h> |
| 68 | |
| 69 | #include <dev/pci/if_iwireg.h> |
| 70 | #include <dev/pci/if_iwivar.h> |
| 71 | |
| 72 | #ifdef IWI_DEBUG |
| 73 | #define DPRINTF(x) if (iwi_debug > 0) printf x |
| 74 | #define DPRINTFN(n, x) if (iwi_debug >= (n)) printf x |
| 75 | int iwi_debug = 4; |
| 76 | #else |
| 77 | #define DPRINTF(x) |
| 78 | #define DPRINTFN(n, x) |
| 79 | #endif |
| 80 | |
| 81 | /* Permit loading the Intel firmware */ |
| 82 | static int iwi_accept_eula; |
| 83 | |
| 84 | static int iwi_match(device_t, cfdata_t, void *); |
| 85 | static void iwi_attach(device_t, device_t, void *); |
| 86 | static int iwi_detach(device_t, int); |
| 87 | |
| 88 | static int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, |
| 89 | int); |
| 90 | static void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); |
| 91 | static void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); |
| 92 | static int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, |
| 93 | int, bus_size_t, bus_size_t); |
| 94 | static void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); |
| 95 | static void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); |
| 96 | static struct mbuf * |
| 97 | iwi_alloc_rx_buf(struct iwi_softc *sc); |
| 98 | static int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, |
| 99 | int); |
| 100 | static void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); |
| 101 | static void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); |
| 102 | |
| 103 | static struct ieee80211_node *iwi_node_alloc(struct ieee80211_node_table *); |
| 104 | static void iwi_node_free(struct ieee80211_node *); |
| 105 | |
| 106 | static int iwi_cvtrate(int); |
| 107 | static int iwi_media_change(struct ifnet *); |
| 108 | static void iwi_media_status(struct ifnet *, struct ifmediareq *); |
| 109 | static int iwi_wme_update(struct ieee80211com *); |
| 110 | static uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); |
| 111 | static int iwi_newstate(struct ieee80211com *, enum ieee80211_state, int); |
| 112 | static void iwi_fix_channel(struct ieee80211com *, struct mbuf *); |
| 113 | static void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, |
| 114 | struct iwi_frame *); |
| 115 | static void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); |
| 116 | static void iwi_cmd_intr(struct iwi_softc *); |
| 117 | static void iwi_rx_intr(struct iwi_softc *); |
| 118 | static void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); |
| 119 | static int iwi_intr(void *); |
| 120 | static int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int); |
| 121 | static void iwi_write_ibssnode(struct iwi_softc *, const struct iwi_node *); |
| 122 | static int iwi_tx_start(struct ifnet *, struct mbuf *, struct ieee80211_node *, |
| 123 | int); |
| 124 | static void iwi_start(struct ifnet *); |
| 125 | static void iwi_watchdog(struct ifnet *); |
| 126 | |
| 127 | static int iwi_alloc_unr(struct iwi_softc *); |
| 128 | static void iwi_free_unr(struct iwi_softc *, int); |
| 129 | |
| 130 | static int iwi_get_table0(struct iwi_softc *, uint32_t *); |
| 131 | |
| 132 | static int iwi_ioctl(struct ifnet *, u_long, void *); |
| 133 | static void iwi_stop_master(struct iwi_softc *); |
| 134 | static int iwi_reset(struct iwi_softc *); |
| 135 | static int iwi_load_ucode(struct iwi_softc *, void *, int); |
| 136 | static int iwi_load_firmware(struct iwi_softc *, void *, int); |
| 137 | static int iwi_cache_firmware(struct iwi_softc *); |
| 138 | static void iwi_free_firmware(struct iwi_softc *); |
| 139 | static int iwi_config(struct iwi_softc *); |
| 140 | static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *); |
| 141 | static int iwi_scan(struct iwi_softc *); |
| 142 | static int iwi_auth_and_assoc(struct iwi_softc *); |
| 143 | static int iwi_init(struct ifnet *); |
| 144 | static void iwi_stop(struct ifnet *, int); |
| 145 | static int iwi_getrfkill(struct iwi_softc *); |
| 146 | static void iwi_led_set(struct iwi_softc *, uint32_t, int); |
| 147 | static void iwi_sysctlattach(struct iwi_softc *); |
| 148 | |
| 149 | /* |
| 150 | * Supported rates for 802.11a/b/g modes (in 500Kbps unit). |
| 151 | */ |
| 152 | static const struct ieee80211_rateset iwi_rateset_11a = |
| 153 | { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; |
| 154 | |
| 155 | static const struct ieee80211_rateset iwi_rateset_11b = |
| 156 | { 4, { 2, 4, 11, 22 } }; |
| 157 | |
| 158 | static const struct ieee80211_rateset iwi_rateset_11g = |
| 159 | { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; |
| 160 | |
| 161 | static inline uint8_t |
| 162 | MEM_READ_1(struct iwi_softc *sc, uint32_t addr) |
| 163 | { |
| 164 | CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); |
| 165 | return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); |
| 166 | } |
| 167 | |
| 168 | static inline uint32_t |
| 169 | MEM_READ_4(struct iwi_softc *sc, uint32_t addr) |
| 170 | { |
| 171 | CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); |
| 172 | return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); |
| 173 | } |
| 174 | |
| 175 | CFATTACH_DECL_NEW(iwi, sizeof (struct iwi_softc), iwi_match, iwi_attach, |
| 176 | iwi_detach, NULL); |
| 177 | |
| 178 | static int |
| 179 | iwi_match(device_t parent, cfdata_t match, void *aux) |
| 180 | { |
| 181 | struct pci_attach_args *pa = aux; |
| 182 | |
| 183 | if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) |
| 184 | return 0; |
| 185 | |
| 186 | if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2200BG || |
| 187 | PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2225BG || |
| 188 | PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || |
| 189 | PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) |
| 190 | return 1; |
| 191 | |
| 192 | return 0; |
| 193 | } |
| 194 | |
| 195 | /* Base Address Register */ |
| 196 | #define IWI_PCI_BAR0 0x10 |
| 197 | |
| 198 | static void |
| 199 | iwi_attach(device_t parent, device_t self, void *aux) |
| 200 | { |
| 201 | struct iwi_softc *sc = device_private(self); |
| 202 | struct ieee80211com *ic = &sc->sc_ic; |
| 203 | struct ifnet *ifp = &sc->sc_if; |
| 204 | struct pci_attach_args *pa = aux; |
| 205 | const char *intrstr; |
| 206 | bus_space_tag_t memt; |
| 207 | bus_space_handle_t memh; |
| 208 | pci_intr_handle_t ih; |
| 209 | pcireg_t data; |
| 210 | uint16_t val; |
| 211 | int error, i; |
| 212 | char intrbuf[PCI_INTRSTR_LEN]; |
| 213 | |
| 214 | sc->sc_dev = self; |
| 215 | sc->sc_pct = pa->pa_pc; |
| 216 | sc->sc_pcitag = pa->pa_tag; |
| 217 | |
| 218 | pci_aprint_devinfo(pa, NULL); |
| 219 | |
| 220 | /* clear unit numbers allocated to IBSS */ |
| 221 | sc->sc_unr = 0; |
| 222 | |
| 223 | /* power up chip */ |
| 224 | if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, |
| 225 | NULL)) && error != EOPNOTSUPP) { |
| 226 | aprint_error_dev(self, "cannot activate %d\n" , error); |
| 227 | return; |
| 228 | } |
| 229 | |
| 230 | /* clear device specific PCI configuration register 0x41 */ |
| 231 | data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); |
| 232 | data &= ~0x0000ff00; |
| 233 | pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); |
| 234 | |
| 235 | |
| 236 | /* enable bus-mastering */ |
| 237 | data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); |
| 238 | data |= PCI_COMMAND_MASTER_ENABLE; |
| 239 | pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); |
| 240 | |
| 241 | /* map the register window */ |
| 242 | error = pci_mapreg_map(pa, IWI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | |
| 243 | PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, &sc->sc_sz); |
| 244 | if (error != 0) { |
| 245 | aprint_error_dev(self, "could not map memory space\n" ); |
| 246 | return; |
| 247 | } |
| 248 | |
| 249 | sc->sc_st = memt; |
| 250 | sc->sc_sh = memh; |
| 251 | sc->sc_dmat = pa->pa_dmat; |
| 252 | |
| 253 | /* disable interrupts */ |
| 254 | CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); |
| 255 | |
| 256 | if (pci_intr_map(pa, &ih) != 0) { |
| 257 | aprint_error_dev(self, "could not map interrupt\n" ); |
| 258 | return; |
| 259 | } |
| 260 | |
| 261 | intrstr = pci_intr_string(sc->sc_pct, ih, intrbuf, sizeof(intrbuf)); |
| 262 | sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, iwi_intr, sc); |
| 263 | if (sc->sc_ih == NULL) { |
| 264 | aprint_error_dev(self, "could not establish interrupt" ); |
| 265 | if (intrstr != NULL) |
| 266 | aprint_error(" at %s" , intrstr); |
| 267 | aprint_error("\n" ); |
| 268 | return; |
| 269 | } |
| 270 | aprint_normal_dev(self, "interrupting at %s\n" , intrstr); |
| 271 | |
| 272 | if (iwi_reset(sc) != 0) { |
| 273 | pci_intr_disestablish(sc->sc_pct, sc->sc_ih); |
| 274 | aprint_error_dev(self, "could not reset adapter\n" ); |
| 275 | return; |
| 276 | } |
| 277 | |
| 278 | ic->ic_ifp = ifp; |
| 279 | ic->ic_wme.wme_update = iwi_wme_update; |
| 280 | ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ |
| 281 | ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ |
| 282 | ic->ic_state = IEEE80211_S_INIT; |
| 283 | |
| 284 | sc->sc_fwname = "ipw2200-bss.fw" ; |
| 285 | |
| 286 | /* set device capabilities */ |
| 287 | ic->ic_caps = |
| 288 | IEEE80211_C_IBSS | /* IBSS mode supported */ |
| 289 | IEEE80211_C_MONITOR | /* monitor mode supported */ |
| 290 | IEEE80211_C_TXPMGT | /* tx power management */ |
| 291 | IEEE80211_C_SHPREAMBLE | /* short preamble supported */ |
| 292 | IEEE80211_C_SHSLOT | /* short slot time supported */ |
| 293 | IEEE80211_C_WPA | /* 802.11i */ |
| 294 | IEEE80211_C_WME; /* 802.11e */ |
| 295 | |
| 296 | /* read MAC address from EEPROM */ |
| 297 | val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); |
| 298 | ic->ic_myaddr[0] = val & 0xff; |
| 299 | ic->ic_myaddr[1] = val >> 8; |
| 300 | val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); |
| 301 | ic->ic_myaddr[2] = val & 0xff; |
| 302 | ic->ic_myaddr[3] = val >> 8; |
| 303 | val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); |
| 304 | ic->ic_myaddr[4] = val & 0xff; |
| 305 | ic->ic_myaddr[5] = val >> 8; |
| 306 | |
| 307 | aprint_verbose_dev(self, "802.11 address %s\n" , |
| 308 | ether_sprintf(ic->ic_myaddr)); |
| 309 | |
| 310 | /* read the NIC type from EEPROM */ |
| 311 | val = iwi_read_prom_word(sc, IWI_EEPROM_NIC_TYPE); |
| 312 | sc->nictype = val & 0xff; |
| 313 | |
| 314 | DPRINTF(("%s: NIC type %d\n" , device_xname(self), sc->nictype)); |
| 315 | |
| 316 | if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_1 || |
| 317 | PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_2915ABG_2) { |
| 318 | /* set supported .11a rates (2915ABG only) */ |
| 319 | ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a; |
| 320 | |
| 321 | /* set supported .11a channels */ |
| 322 | for (i = 36; i <= 64; i += 4) { |
| 323 | ic->ic_channels[i].ic_freq = |
| 324 | ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); |
| 325 | ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; |
| 326 | } |
| 327 | for (i = 149; i <= 165; i += 4) { |
| 328 | ic->ic_channels[i].ic_freq = |
| 329 | ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); |
| 330 | ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; |
| 331 | } |
| 332 | } |
| 333 | |
| 334 | /* set supported .11b and .11g rates */ |
| 335 | ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b; |
| 336 | ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g; |
| 337 | |
| 338 | /* set supported .11b and .11g channels (1 through 14) */ |
| 339 | for (i = 1; i <= 14; i++) { |
| 340 | ic->ic_channels[i].ic_freq = |
| 341 | ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); |
| 342 | ic->ic_channels[i].ic_flags = |
| 343 | IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | |
| 344 | IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; |
| 345 | } |
| 346 | |
| 347 | ifp->if_softc = sc; |
| 348 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; |
| 349 | ifp->if_init = iwi_init; |
| 350 | ifp->if_stop = iwi_stop; |
| 351 | ifp->if_ioctl = iwi_ioctl; |
| 352 | ifp->if_start = iwi_start; |
| 353 | ifp->if_watchdog = iwi_watchdog; |
| 354 | IFQ_SET_READY(&ifp->if_snd); |
| 355 | memcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); |
| 356 | |
| 357 | if_attach(ifp); |
| 358 | ieee80211_ifattach(ic); |
| 359 | /* override default methods */ |
| 360 | ic->ic_node_alloc = iwi_node_alloc; |
| 361 | sc->sc_node_free = ic->ic_node_free; |
| 362 | ic->ic_node_free = iwi_node_free; |
| 363 | /* override state transition machine */ |
| 364 | sc->sc_newstate = ic->ic_newstate; |
| 365 | ic->ic_newstate = iwi_newstate; |
| 366 | ieee80211_media_init(ic, iwi_media_change, iwi_media_status); |
| 367 | |
| 368 | /* |
| 369 | * Allocate rings. |
| 370 | */ |
| 371 | if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { |
| 372 | aprint_error_dev(self, "could not allocate command ring\n" ); |
| 373 | goto fail; |
| 374 | } |
| 375 | |
| 376 | error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, |
| 377 | IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); |
| 378 | if (error != 0) { |
| 379 | aprint_error_dev(self, "could not allocate Tx ring 1\n" ); |
| 380 | goto fail; |
| 381 | } |
| 382 | |
| 383 | error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, |
| 384 | IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); |
| 385 | if (error != 0) { |
| 386 | aprint_error_dev(self, "could not allocate Tx ring 2\n" ); |
| 387 | goto fail; |
| 388 | } |
| 389 | |
| 390 | error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, |
| 391 | IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); |
| 392 | if (error != 0) { |
| 393 | aprint_error_dev(self, "could not allocate Tx ring 3\n" ); |
| 394 | goto fail; |
| 395 | } |
| 396 | |
| 397 | error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, |
| 398 | IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); |
| 399 | if (error != 0) { |
| 400 | aprint_error_dev(self, "could not allocate Tx ring 4\n" ); |
| 401 | goto fail; |
| 402 | } |
| 403 | |
| 404 | if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { |
| 405 | aprint_error_dev(self, "could not allocate Rx ring\n" ); |
| 406 | goto fail; |
| 407 | } |
| 408 | |
| 409 | bpf_attach2(ifp, DLT_IEEE802_11_RADIO, |
| 410 | sizeof(struct ieee80211_frame) + 64, &sc->sc_drvbpf); |
| 411 | |
| 412 | sc->sc_rxtap_len = sizeof sc->sc_rxtapu; |
| 413 | sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); |
| 414 | sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); |
| 415 | |
| 416 | sc->sc_txtap_len = sizeof sc->sc_txtapu; |
| 417 | sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); |
| 418 | sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); |
| 419 | |
| 420 | iwi_sysctlattach(sc); |
| 421 | |
| 422 | if (pmf_device_register(self, NULL, NULL)) |
| 423 | pmf_class_network_register(self, ifp); |
| 424 | else |
| 425 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
| 426 | |
| 427 | ieee80211_announce(ic); |
| 428 | |
| 429 | return; |
| 430 | |
| 431 | fail: iwi_detach(self, 0); |
| 432 | } |
| 433 | |
| 434 | static int |
| 435 | iwi_detach(device_t self, int flags) |
| 436 | { |
| 437 | struct iwi_softc *sc = device_private(self); |
| 438 | struct ifnet *ifp = &sc->sc_if; |
| 439 | |
| 440 | pmf_device_deregister(self); |
| 441 | |
| 442 | if (ifp != NULL) |
| 443 | iwi_stop(ifp, 1); |
| 444 | |
| 445 | iwi_free_firmware(sc); |
| 446 | |
| 447 | ieee80211_ifdetach(&sc->sc_ic); |
| 448 | if (ifp != NULL) |
| 449 | if_detach(ifp); |
| 450 | |
| 451 | iwi_free_cmd_ring(sc, &sc->cmdq); |
| 452 | iwi_free_tx_ring(sc, &sc->txq[0]); |
| 453 | iwi_free_tx_ring(sc, &sc->txq[1]); |
| 454 | iwi_free_tx_ring(sc, &sc->txq[2]); |
| 455 | iwi_free_tx_ring(sc, &sc->txq[3]); |
| 456 | iwi_free_rx_ring(sc, &sc->rxq); |
| 457 | |
| 458 | if (sc->sc_ih != NULL) { |
| 459 | pci_intr_disestablish(sc->sc_pct, sc->sc_ih); |
| 460 | sc->sc_ih = NULL; |
| 461 | } |
| 462 | |
| 463 | bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); |
| 464 | |
| 465 | return 0; |
| 466 | } |
| 467 | |
| 468 | static int |
| 469 | iwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, |
| 470 | int count) |
| 471 | { |
| 472 | int error, nsegs; |
| 473 | |
| 474 | ring->count = count; |
| 475 | ring->queued = 0; |
| 476 | ring->cur = ring->next = 0; |
| 477 | |
| 478 | /* |
| 479 | * Allocate and map command ring |
| 480 | */ |
| 481 | error = bus_dmamap_create(sc->sc_dmat, |
| 482 | IWI_CMD_DESC_SIZE * count, 1, |
| 483 | IWI_CMD_DESC_SIZE * count, 0, |
| 484 | BUS_DMA_NOWAIT, &ring->desc_map); |
| 485 | if (error != 0) { |
| 486 | aprint_error_dev(sc->sc_dev, |
| 487 | "could not create command ring DMA map\n" ); |
| 488 | ring->desc_map = NULL; |
| 489 | goto fail; |
| 490 | } |
| 491 | |
| 492 | error = bus_dmamem_alloc(sc->sc_dmat, |
| 493 | IWI_CMD_DESC_SIZE * count, PAGE_SIZE, 0, |
| 494 | &sc->cmdq.desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); |
| 495 | if (error != 0) { |
| 496 | aprint_error_dev(sc->sc_dev, |
| 497 | "could not allocate command ring DMA memory\n" ); |
| 498 | goto fail; |
| 499 | } |
| 500 | |
| 501 | error = bus_dmamem_map(sc->sc_dmat, &sc->cmdq.desc_seg, nsegs, |
| 502 | IWI_CMD_DESC_SIZE * count, |
| 503 | (void **)&sc->cmdq.desc, BUS_DMA_NOWAIT); |
| 504 | if (error != 0) { |
| 505 | aprint_error_dev(sc->sc_dev, |
| 506 | "could not map command ring DMA memory\n" ); |
| 507 | goto fail; |
| 508 | } |
| 509 | |
| 510 | error = bus_dmamap_load(sc->sc_dmat, sc->cmdq.desc_map, sc->cmdq.desc, |
| 511 | IWI_CMD_DESC_SIZE * count, NULL, |
| 512 | BUS_DMA_NOWAIT); |
| 513 | if (error != 0) { |
| 514 | aprint_error_dev(sc->sc_dev, |
| 515 | "could not load command ring DMA map\n" ); |
| 516 | goto fail; |
| 517 | } |
| 518 | |
| 519 | memset(sc->cmdq.desc, 0, |
| 520 | IWI_CMD_DESC_SIZE * count); |
| 521 | |
| 522 | return 0; |
| 523 | |
| 524 | fail: return error; |
| 525 | } |
| 526 | |
| 527 | static void |
| 528 | iwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) |
| 529 | { |
| 530 | int i; |
| 531 | |
| 532 | for (i = ring->next; i != ring->cur;) { |
| 533 | bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, |
| 534 | i * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, |
| 535 | BUS_DMASYNC_POSTWRITE); |
| 536 | |
| 537 | wakeup(&ring->desc[i]); |
| 538 | i = (i + 1) % ring->count; |
| 539 | } |
| 540 | |
| 541 | ring->queued = 0; |
| 542 | ring->cur = ring->next = 0; |
| 543 | } |
| 544 | |
| 545 | static void |
| 546 | iwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) |
| 547 | { |
| 548 | if (ring->desc_map != NULL) { |
| 549 | if (ring->desc != NULL) { |
| 550 | bus_dmamap_unload(sc->sc_dmat, ring->desc_map); |
| 551 | bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, |
| 552 | IWI_CMD_DESC_SIZE * ring->count); |
| 553 | bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); |
| 554 | } |
| 555 | bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); |
| 556 | } |
| 557 | } |
| 558 | |
| 559 | static int |
| 560 | iwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, |
| 561 | int count, bus_size_t csr_ridx, bus_size_t csr_widx) |
| 562 | { |
| 563 | int i, error, nsegs; |
| 564 | |
| 565 | ring->count = 0; |
| 566 | ring->queued = 0; |
| 567 | ring->cur = ring->next = 0; |
| 568 | ring->csr_ridx = csr_ridx; |
| 569 | ring->csr_widx = csr_widx; |
| 570 | |
| 571 | /* |
| 572 | * Allocate and map Tx ring |
| 573 | */ |
| 574 | error = bus_dmamap_create(sc->sc_dmat, |
| 575 | IWI_TX_DESC_SIZE * count, 1, |
| 576 | IWI_TX_DESC_SIZE * count, 0, BUS_DMA_NOWAIT, |
| 577 | &ring->desc_map); |
| 578 | if (error != 0) { |
| 579 | aprint_error_dev(sc->sc_dev, |
| 580 | "could not create tx ring DMA map\n" ); |
| 581 | ring->desc_map = NULL; |
| 582 | goto fail; |
| 583 | } |
| 584 | |
| 585 | error = bus_dmamem_alloc(sc->sc_dmat, |
| 586 | IWI_TX_DESC_SIZE * count, PAGE_SIZE, 0, |
| 587 | &ring->desc_seg, 1, &nsegs, BUS_DMA_NOWAIT); |
| 588 | if (error != 0) { |
| 589 | aprint_error_dev(sc->sc_dev, |
| 590 | "could not allocate tx ring DMA memory\n" ); |
| 591 | goto fail; |
| 592 | } |
| 593 | |
| 594 | error = bus_dmamem_map(sc->sc_dmat, &ring->desc_seg, nsegs, |
| 595 | IWI_TX_DESC_SIZE * count, |
| 596 | (void **)&ring->desc, BUS_DMA_NOWAIT); |
| 597 | if (error != 0) { |
| 598 | aprint_error_dev(sc->sc_dev, |
| 599 | "could not map tx ring DMA memory\n" ); |
| 600 | goto fail; |
| 601 | } |
| 602 | |
| 603 | error = bus_dmamap_load(sc->sc_dmat, ring->desc_map, ring->desc, |
| 604 | IWI_TX_DESC_SIZE * count, NULL, |
| 605 | BUS_DMA_NOWAIT); |
| 606 | if (error != 0) { |
| 607 | aprint_error_dev(sc->sc_dev, |
| 608 | "could not load tx ring DMA map\n" ); |
| 609 | goto fail; |
| 610 | } |
| 611 | |
| 612 | memset(ring->desc, 0, IWI_TX_DESC_SIZE * count); |
| 613 | |
| 614 | ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, |
| 615 | M_NOWAIT | M_ZERO); |
| 616 | if (ring->data == NULL) { |
| 617 | aprint_error_dev(sc->sc_dev, "could not allocate soft data\n" ); |
| 618 | error = ENOMEM; |
| 619 | goto fail; |
| 620 | } |
| 621 | ring->count = count; |
| 622 | |
| 623 | /* |
| 624 | * Allocate Tx buffers DMA maps |
| 625 | */ |
| 626 | for (i = 0; i < count; i++) { |
| 627 | error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, IWI_MAX_NSEG, |
| 628 | MCLBYTES, 0, BUS_DMA_NOWAIT, &ring->data[i].map); |
| 629 | if (error != 0) { |
| 630 | aprint_error_dev(sc->sc_dev, |
| 631 | "could not create tx buf DMA map" ); |
| 632 | ring->data[i].map = NULL; |
| 633 | goto fail; |
| 634 | } |
| 635 | } |
| 636 | return 0; |
| 637 | |
| 638 | fail: return error; |
| 639 | } |
| 640 | |
| 641 | static void |
| 642 | iwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) |
| 643 | { |
| 644 | struct iwi_tx_data *data; |
| 645 | int i; |
| 646 | |
| 647 | for (i = 0; i < ring->count; i++) { |
| 648 | data = &ring->data[i]; |
| 649 | |
| 650 | if (data->m != NULL) { |
| 651 | m_freem(data->m); |
| 652 | data->m = NULL; |
| 653 | } |
| 654 | |
| 655 | if (data->map != NULL) { |
| 656 | bus_dmamap_sync(sc->sc_dmat, data->map, 0, |
| 657 | data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); |
| 658 | bus_dmamap_unload(sc->sc_dmat, data->map); |
| 659 | } |
| 660 | |
| 661 | if (data->ni != NULL) { |
| 662 | ieee80211_free_node(data->ni); |
| 663 | data->ni = NULL; |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | ring->queued = 0; |
| 668 | ring->cur = ring->next = 0; |
| 669 | } |
| 670 | |
| 671 | static void |
| 672 | iwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) |
| 673 | { |
| 674 | int i; |
| 675 | struct iwi_tx_data *data; |
| 676 | |
| 677 | if (ring->desc_map != NULL) { |
| 678 | if (ring->desc != NULL) { |
| 679 | bus_dmamap_unload(sc->sc_dmat, ring->desc_map); |
| 680 | bus_dmamem_unmap(sc->sc_dmat, (void *)ring->desc, |
| 681 | IWI_TX_DESC_SIZE * ring->count); |
| 682 | bus_dmamem_free(sc->sc_dmat, &ring->desc_seg, 1); |
| 683 | } |
| 684 | bus_dmamap_destroy(sc->sc_dmat, ring->desc_map); |
| 685 | } |
| 686 | |
| 687 | for (i = 0; i < ring->count; i++) { |
| 688 | data = &ring->data[i]; |
| 689 | |
| 690 | if (data->m != NULL) { |
| 691 | m_freem(data->m); |
| 692 | } |
| 693 | |
| 694 | if (data->map != NULL) { |
| 695 | bus_dmamap_unload(sc->sc_dmat, data->map); |
| 696 | bus_dmamap_destroy(sc->sc_dmat, data->map); |
| 697 | } |
| 698 | } |
| 699 | } |
| 700 | |
| 701 | static int |
| 702 | iwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) |
| 703 | { |
| 704 | int i, error; |
| 705 | |
| 706 | ring->count = 0; |
| 707 | ring->cur = 0; |
| 708 | |
| 709 | ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, |
| 710 | M_NOWAIT | M_ZERO); |
| 711 | if (ring->data == NULL) { |
| 712 | aprint_error_dev(sc->sc_dev, "could not allocate soft data\n" ); |
| 713 | error = ENOMEM; |
| 714 | goto fail; |
| 715 | } |
| 716 | |
| 717 | ring->count = count; |
| 718 | |
| 719 | /* |
| 720 | * Allocate and map Rx buffers |
| 721 | */ |
| 722 | for (i = 0; i < count; i++) { |
| 723 | |
| 724 | error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, |
| 725 | 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ring->data[i].map); |
| 726 | if (error != 0) { |
| 727 | aprint_error_dev(sc->sc_dev, |
| 728 | "could not create rx buf DMA map" ); |
| 729 | ring->data[i].map = NULL; |
| 730 | goto fail; |
| 731 | } |
| 732 | |
| 733 | if ((ring->data[i].m = iwi_alloc_rx_buf(sc)) == NULL) { |
| 734 | error = ENOMEM; |
| 735 | goto fail; |
| 736 | } |
| 737 | |
| 738 | error = bus_dmamap_load_mbuf(sc->sc_dmat, ring->data[i].map, |
| 739 | ring->data[i].m, BUS_DMA_READ | BUS_DMA_NOWAIT); |
| 740 | if (error != 0) { |
| 741 | aprint_error_dev(sc->sc_dev, |
| 742 | "could not load rx buffer DMA map\n" ); |
| 743 | goto fail; |
| 744 | } |
| 745 | |
| 746 | bus_dmamap_sync(sc->sc_dmat, ring->data[i].map, 0, |
| 747 | ring->data[i].map->dm_mapsize, BUS_DMASYNC_PREREAD); |
| 748 | } |
| 749 | |
| 750 | return 0; |
| 751 | |
| 752 | fail: return error; |
| 753 | } |
| 754 | |
| 755 | static void |
| 756 | iwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) |
| 757 | { |
| 758 | ring->cur = 0; |
| 759 | } |
| 760 | |
| 761 | static void |
| 762 | iwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) |
| 763 | { |
| 764 | int i; |
| 765 | struct iwi_rx_data *data; |
| 766 | |
| 767 | for (i = 0; i < ring->count; i++) { |
| 768 | data = &ring->data[i]; |
| 769 | |
| 770 | if (data->m != NULL) { |
| 771 | m_freem(data->m); |
| 772 | } |
| 773 | |
| 774 | if (data->map != NULL) { |
| 775 | bus_dmamap_unload(sc->sc_dmat, data->map); |
| 776 | bus_dmamap_destroy(sc->sc_dmat, data->map); |
| 777 | } |
| 778 | |
| 779 | } |
| 780 | } |
| 781 | |
| 782 | static struct ieee80211_node * |
| 783 | iwi_node_alloc(struct ieee80211_node_table *nt) |
| 784 | { |
| 785 | struct iwi_node *in; |
| 786 | |
| 787 | in = malloc(sizeof (struct iwi_node), M_80211_NODE, M_NOWAIT | M_ZERO); |
| 788 | if (in == NULL) |
| 789 | return NULL; |
| 790 | |
| 791 | in->in_station = -1; |
| 792 | |
| 793 | return &in->in_node; |
| 794 | } |
| 795 | |
| 796 | static int |
| 797 | iwi_alloc_unr(struct iwi_softc *sc) |
| 798 | { |
| 799 | int i; |
| 800 | |
| 801 | for (i = 0; i < IWI_MAX_IBSSNODE - 1; i++) |
| 802 | if ((sc->sc_unr & (1 << i)) == 0) { |
| 803 | sc->sc_unr |= 1 << i; |
| 804 | return i; |
| 805 | } |
| 806 | |
| 807 | return -1; |
| 808 | } |
| 809 | |
| 810 | static void |
| 811 | iwi_free_unr(struct iwi_softc *sc, int r) |
| 812 | { |
| 813 | |
| 814 | sc->sc_unr &= 1 << r; |
| 815 | } |
| 816 | |
| 817 | static void |
| 818 | iwi_node_free(struct ieee80211_node *ni) |
| 819 | { |
| 820 | struct ieee80211com *ic = ni->ni_ic; |
| 821 | struct iwi_softc *sc = ic->ic_ifp->if_softc; |
| 822 | struct iwi_node *in = (struct iwi_node *)ni; |
| 823 | |
| 824 | if (in->in_station != -1) |
| 825 | iwi_free_unr(sc, in->in_station); |
| 826 | |
| 827 | sc->sc_node_free(ni); |
| 828 | } |
| 829 | |
| 830 | static int |
| 831 | iwi_media_change(struct ifnet *ifp) |
| 832 | { |
| 833 | int error; |
| 834 | |
| 835 | error = ieee80211_media_change(ifp); |
| 836 | if (error != ENETRESET) |
| 837 | return error; |
| 838 | |
| 839 | if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) |
| 840 | iwi_init(ifp); |
| 841 | |
| 842 | return 0; |
| 843 | } |
| 844 | |
| 845 | /* |
| 846 | * Convert h/w rate code to IEEE rate code. |
| 847 | */ |
| 848 | static int |
| 849 | iwi_cvtrate(int iwirate) |
| 850 | { |
| 851 | switch (iwirate) { |
| 852 | case IWI_RATE_DS1: return 2; |
| 853 | case IWI_RATE_DS2: return 4; |
| 854 | case IWI_RATE_DS5: return 11; |
| 855 | case IWI_RATE_DS11: return 22; |
| 856 | case IWI_RATE_OFDM6: return 12; |
| 857 | case IWI_RATE_OFDM9: return 18; |
| 858 | case IWI_RATE_OFDM12: return 24; |
| 859 | case IWI_RATE_OFDM18: return 36; |
| 860 | case IWI_RATE_OFDM24: return 48; |
| 861 | case IWI_RATE_OFDM36: return 72; |
| 862 | case IWI_RATE_OFDM48: return 96; |
| 863 | case IWI_RATE_OFDM54: return 108; |
| 864 | } |
| 865 | return 0; |
| 866 | } |
| 867 | |
| 868 | /* |
| 869 | * The firmware automatically adapts the transmit speed. We report its current |
| 870 | * value here. |
| 871 | */ |
| 872 | static void |
| 873 | iwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) |
| 874 | { |
| 875 | struct iwi_softc *sc = ifp->if_softc; |
| 876 | struct ieee80211com *ic = &sc->sc_ic; |
| 877 | int rate; |
| 878 | |
| 879 | imr->ifm_status = IFM_AVALID; |
| 880 | imr->ifm_active = IFM_IEEE80211; |
| 881 | if (ic->ic_state == IEEE80211_S_RUN) |
| 882 | imr->ifm_status |= IFM_ACTIVE; |
| 883 | |
| 884 | /* read current transmission rate from adapter */ |
| 885 | rate = iwi_cvtrate(CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE)); |
| 886 | imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); |
| 887 | |
| 888 | switch (ic->ic_opmode) { |
| 889 | case IEEE80211_M_STA: |
| 890 | break; |
| 891 | |
| 892 | case IEEE80211_M_IBSS: |
| 893 | imr->ifm_active |= IFM_IEEE80211_ADHOC; |
| 894 | break; |
| 895 | |
| 896 | case IEEE80211_M_MONITOR: |
| 897 | imr->ifm_active |= IFM_IEEE80211_MONITOR; |
| 898 | break; |
| 899 | |
| 900 | case IEEE80211_M_AHDEMO: |
| 901 | case IEEE80211_M_HOSTAP: |
| 902 | /* should not get there */ |
| 903 | break; |
| 904 | } |
| 905 | } |
| 906 | |
| 907 | static int |
| 908 | iwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) |
| 909 | { |
| 910 | struct iwi_softc *sc = ic->ic_ifp->if_softc; |
| 911 | |
| 912 | DPRINTF(("%s: %s -> %s flags 0x%x\n" , __func__, |
| 913 | ieee80211_state_name[ic->ic_state], |
| 914 | ieee80211_state_name[nstate], sc->flags)); |
| 915 | |
| 916 | switch (nstate) { |
| 917 | case IEEE80211_S_SCAN: |
| 918 | if (sc->flags & IWI_FLAG_SCANNING) |
| 919 | break; |
| 920 | |
| 921 | ieee80211_node_table_reset(&ic->ic_scan); |
| 922 | ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; |
| 923 | sc->flags |= IWI_FLAG_SCANNING; |
| 924 | /* blink the led while scanning */ |
| 925 | iwi_led_set(sc, IWI_LED_ASSOCIATED, 1); |
| 926 | iwi_scan(sc); |
| 927 | break; |
| 928 | |
| 929 | case IEEE80211_S_AUTH: |
| 930 | iwi_auth_and_assoc(sc); |
| 931 | break; |
| 932 | |
| 933 | case IEEE80211_S_RUN: |
| 934 | if (ic->ic_opmode == IEEE80211_M_IBSS && |
| 935 | ic->ic_state == IEEE80211_S_SCAN) |
| 936 | iwi_auth_and_assoc(sc); |
| 937 | else if (ic->ic_opmode == IEEE80211_M_MONITOR) |
| 938 | iwi_set_chan(sc, ic->ic_ibss_chan); |
| 939 | break; |
| 940 | case IEEE80211_S_ASSOC: |
| 941 | iwi_led_set(sc, IWI_LED_ASSOCIATED, 0); |
| 942 | if (ic->ic_state == IEEE80211_S_AUTH) |
| 943 | break; |
| 944 | iwi_auth_and_assoc(sc); |
| 945 | break; |
| 946 | |
| 947 | case IEEE80211_S_INIT: |
| 948 | sc->flags &= ~IWI_FLAG_SCANNING; |
| 949 | break; |
| 950 | } |
| 951 | |
| 952 | return sc->sc_newstate(ic, nstate, arg); |
| 953 | } |
| 954 | |
| 955 | /* |
| 956 | * WME parameters coming from IEEE 802.11e specification. These values are |
| 957 | * already declared in ieee80211_proto.c, but they are static so they can't |
| 958 | * be reused here. |
| 959 | */ |
| 960 | static const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { |
| 961 | { 0, 3, 5, 7, 0, 0, }, /* WME_AC_BE */ |
| 962 | { 0, 3, 5, 10, 0, 0, }, /* WME_AC_BK */ |
| 963 | { 0, 2, 4, 5, 188, 0, }, /* WME_AC_VI */ |
| 964 | { 0, 2, 3, 4, 102, 0, }, /* WME_AC_VO */ |
| 965 | }; |
| 966 | |
| 967 | static const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { |
| 968 | { 0, 3, 4, 6, 0, 0, }, /* WME_AC_BE */ |
| 969 | { 0, 3, 4, 10, 0, 0, }, /* WME_AC_BK */ |
| 970 | { 0, 2, 3, 4, 94, 0, }, /* WME_AC_VI */ |
| 971 | { 0, 2, 2, 3, 47, 0, }, /* WME_AC_VO */ |
| 972 | }; |
| 973 | |
| 974 | static int |
| 975 | iwi_wme_update(struct ieee80211com *ic) |
| 976 | { |
| 977 | #define IWI_EXP2(v) htole16((1 << (v)) - 1) |
| 978 | #define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) |
| 979 | struct iwi_softc *sc = ic->ic_ifp->if_softc; |
| 980 | struct iwi_wme_params wme[3]; |
| 981 | const struct wmeParams *wmep; |
| 982 | int ac; |
| 983 | |
| 984 | /* |
| 985 | * We shall not override firmware default WME values if WME is not |
| 986 | * actually enabled. |
| 987 | */ |
| 988 | if (!(ic->ic_flags & IEEE80211_F_WME)) |
| 989 | return 0; |
| 990 | |
| 991 | for (ac = 0; ac < WME_NUM_AC; ac++) { |
| 992 | /* set WME values for current operating mode */ |
| 993 | wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; |
| 994 | wme[0].aifsn[ac] = wmep->wmep_aifsn; |
| 995 | wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); |
| 996 | wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); |
| 997 | wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); |
| 998 | wme[0].acm[ac] = wmep->wmep_acm; |
| 999 | |
| 1000 | /* set WME values for CCK modulation */ |
| 1001 | wmep = &iwi_wme_cck_params[ac]; |
| 1002 | wme[1].aifsn[ac] = wmep->wmep_aifsn; |
| 1003 | wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); |
| 1004 | wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); |
| 1005 | wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); |
| 1006 | wme[1].acm[ac] = wmep->wmep_acm; |
| 1007 | |
| 1008 | /* set WME values for OFDM modulation */ |
| 1009 | wmep = &iwi_wme_ofdm_params[ac]; |
| 1010 | wme[2].aifsn[ac] = wmep->wmep_aifsn; |
| 1011 | wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); |
| 1012 | wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); |
| 1013 | wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); |
| 1014 | wme[2].acm[ac] = wmep->wmep_acm; |
| 1015 | } |
| 1016 | |
| 1017 | DPRINTF(("Setting WME parameters\n" )); |
| 1018 | return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); |
| 1019 | #undef IWI_USEC |
| 1020 | #undef IWI_EXP2 |
| 1021 | } |
| 1022 | |
| 1023 | /* |
| 1024 | * Read 16 bits at address 'addr' from the serial EEPROM. |
| 1025 | */ |
| 1026 | static uint16_t |
| 1027 | iwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) |
| 1028 | { |
| 1029 | uint32_t tmp; |
| 1030 | uint16_t val; |
| 1031 | int n; |
| 1032 | |
| 1033 | /* Clock C once before the first command */ |
| 1034 | IWI_EEPROM_CTL(sc, 0); |
| 1035 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S); |
| 1036 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); |
| 1037 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S); |
| 1038 | |
| 1039 | /* Write start bit (1) */ |
| 1040 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); |
| 1041 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); |
| 1042 | |
| 1043 | /* Write READ opcode (10) */ |
| 1044 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); |
| 1045 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); |
| 1046 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S); |
| 1047 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); |
| 1048 | |
| 1049 | /* Write address A7-A0 */ |
| 1050 | for (n = 7; n >= 0; n--) { |
| 1051 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | |
| 1052 | (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); |
| 1053 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | |
| 1054 | (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); |
| 1055 | } |
| 1056 | |
| 1057 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S); |
| 1058 | |
| 1059 | /* Read data Q15-Q0 */ |
| 1060 | val = 0; |
| 1061 | for (n = 15; n >= 0; n--) { |
| 1062 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); |
| 1063 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S); |
| 1064 | tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); |
| 1065 | val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; |
| 1066 | } |
| 1067 | |
| 1068 | IWI_EEPROM_CTL(sc, 0); |
| 1069 | |
| 1070 | /* Clear Chip Select and clock C */ |
| 1071 | IWI_EEPROM_CTL(sc, IWI_EEPROM_S); |
| 1072 | IWI_EEPROM_CTL(sc, 0); |
| 1073 | IWI_EEPROM_CTL(sc, IWI_EEPROM_C); |
| 1074 | |
| 1075 | return val; |
| 1076 | } |
| 1077 | |
| 1078 | /* |
| 1079 | * XXX: Hack to set the current channel to the value advertised in beacons or |
| 1080 | * probe responses. Only used during AP detection. |
| 1081 | */ |
| 1082 | static void |
| 1083 | iwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) |
| 1084 | { |
| 1085 | struct ieee80211_frame *wh; |
| 1086 | uint8_t subtype; |
| 1087 | uint8_t *frm, *efrm; |
| 1088 | |
| 1089 | wh = mtod(m, struct ieee80211_frame *); |
| 1090 | |
| 1091 | if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) |
| 1092 | return; |
| 1093 | |
| 1094 | subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; |
| 1095 | |
| 1096 | if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && |
| 1097 | subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) |
| 1098 | return; |
| 1099 | |
| 1100 | frm = (uint8_t *)(wh + 1); |
| 1101 | efrm = mtod(m, uint8_t *) + m->m_len; |
| 1102 | |
| 1103 | frm += 12; /* skip tstamp, bintval and capinfo fields */ |
| 1104 | while (frm < efrm) { |
| 1105 | if (*frm == IEEE80211_ELEMID_DSPARMS) |
| 1106 | #if IEEE80211_CHAN_MAX < 255 |
| 1107 | if (frm[2] <= IEEE80211_CHAN_MAX) |
| 1108 | #endif |
| 1109 | ic->ic_curchan = &ic->ic_channels[frm[2]]; |
| 1110 | |
| 1111 | frm += frm[1] + 2; |
| 1112 | } |
| 1113 | } |
| 1114 | |
| 1115 | static struct mbuf * |
| 1116 | iwi_alloc_rx_buf(struct iwi_softc *sc) |
| 1117 | { |
| 1118 | struct mbuf *m; |
| 1119 | |
| 1120 | MGETHDR(m, M_DONTWAIT, MT_DATA); |
| 1121 | if (m == NULL) { |
| 1122 | aprint_error_dev(sc->sc_dev, "could not allocate rx mbuf\n" ); |
| 1123 | return NULL; |
| 1124 | } |
| 1125 | |
| 1126 | MCLGET(m, M_DONTWAIT); |
| 1127 | if (!(m->m_flags & M_EXT)) { |
| 1128 | aprint_error_dev(sc->sc_dev, |
| 1129 | "could not allocate rx mbuf cluster\n" ); |
| 1130 | m_freem(m); |
| 1131 | return NULL; |
| 1132 | } |
| 1133 | |
| 1134 | m->m_pkthdr.len = m->m_len = m->m_ext.ext_size; |
| 1135 | return m; |
| 1136 | } |
| 1137 | |
| 1138 | static void |
| 1139 | iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, |
| 1140 | struct iwi_frame *frame) |
| 1141 | { |
| 1142 | struct ieee80211com *ic = &sc->sc_ic; |
| 1143 | struct ifnet *ifp = ic->ic_ifp; |
| 1144 | struct mbuf *m, *m_new; |
| 1145 | struct ieee80211_frame *wh; |
| 1146 | struct ieee80211_node *ni; |
| 1147 | int error; |
| 1148 | |
| 1149 | DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n" , |
| 1150 | le16toh(frame->len), frame->chan, frame->rssi_dbm)); |
| 1151 | |
| 1152 | if (le16toh(frame->len) < sizeof (struct ieee80211_frame) || |
| 1153 | le16toh(frame->len) > MCLBYTES) { |
| 1154 | DPRINTF(("%s: bad frame length\n" , device_xname(sc->sc_dev))); |
| 1155 | ifp->if_ierrors++; |
| 1156 | return; |
| 1157 | } |
| 1158 | |
| 1159 | /* |
| 1160 | * Try to allocate a new mbuf for this ring element and |
| 1161 | * load it before processing the current mbuf. If the ring |
| 1162 | * element cannot be reloaded, drop the received packet |
| 1163 | * and reuse the old mbuf. In the unlikely case that |
| 1164 | * the old mbuf can't be reloaded either, explicitly panic. |
| 1165 | * |
| 1166 | * XXX Reorganize buffer by moving elements from the logical |
| 1167 | * end of the ring to the front instead of dropping. |
| 1168 | */ |
| 1169 | if ((m_new = iwi_alloc_rx_buf(sc)) == NULL) { |
| 1170 | ifp->if_ierrors++; |
| 1171 | return; |
| 1172 | } |
| 1173 | |
| 1174 | bus_dmamap_unload(sc->sc_dmat, data->map); |
| 1175 | |
| 1176 | error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m_new, |
| 1177 | BUS_DMA_READ | BUS_DMA_NOWAIT); |
| 1178 | if (error != 0) { |
| 1179 | aprint_error_dev(sc->sc_dev, |
| 1180 | "could not load rx buf DMA map\n" ); |
| 1181 | m_freem(m_new); |
| 1182 | ifp->if_ierrors++; |
| 1183 | error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, |
| 1184 | data->m, BUS_DMA_READ | BUS_DMA_NOWAIT); |
| 1185 | if (error) |
| 1186 | panic("%s: unable to remap rx buf" , |
| 1187 | device_xname(sc->sc_dev)); |
| 1188 | return; |
| 1189 | } |
| 1190 | |
| 1191 | /* |
| 1192 | * New mbuf successfully loaded, update RX ring and continue |
| 1193 | * processing. |
| 1194 | */ |
| 1195 | m = data->m; |
| 1196 | data->m = m_new; |
| 1197 | CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, data->map->dm_segs[0].ds_addr); |
| 1198 | |
| 1199 | /* Finalize mbuf */ |
| 1200 | m_set_rcvif(m, ifp); |
| 1201 | m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + |
| 1202 | sizeof (struct iwi_frame) + le16toh(frame->len); |
| 1203 | |
| 1204 | m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); |
| 1205 | |
| 1206 | if (ic->ic_state == IEEE80211_S_SCAN) |
| 1207 | iwi_fix_channel(ic, m); |
| 1208 | |
| 1209 | if (sc->sc_drvbpf != NULL) { |
| 1210 | struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; |
| 1211 | |
| 1212 | tap->wr_flags = 0; |
| 1213 | tap->wr_rate = iwi_cvtrate(frame->rate); |
| 1214 | tap->wr_chan_freq = |
| 1215 | htole16(ic->ic_channels[frame->chan].ic_freq); |
| 1216 | tap->wr_chan_flags = |
| 1217 | htole16(ic->ic_channels[frame->chan].ic_flags); |
| 1218 | tap->wr_antsignal = frame->signal; |
| 1219 | tap->wr_antenna = frame->antenna; |
| 1220 | |
| 1221 | bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); |
| 1222 | } |
| 1223 | wh = mtod(m, struct ieee80211_frame *); |
| 1224 | ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); |
| 1225 | |
| 1226 | /* Send the frame to the upper layer */ |
| 1227 | ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); |
| 1228 | |
| 1229 | /* node is no longer needed */ |
| 1230 | ieee80211_free_node(ni); |
| 1231 | } |
| 1232 | |
| 1233 | static void |
| 1234 | iwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) |
| 1235 | { |
| 1236 | struct ieee80211com *ic = &sc->sc_ic; |
| 1237 | struct iwi_notif_authentication *auth; |
| 1238 | struct iwi_notif_association *assoc; |
| 1239 | struct iwi_notif_beacon_state *beacon; |
| 1240 | |
| 1241 | switch (notif->type) { |
| 1242 | case IWI_NOTIF_TYPE_SCAN_CHANNEL: |
| 1243 | #ifdef IWI_DEBUG |
| 1244 | { |
| 1245 | struct iwi_notif_scan_channel *chan = |
| 1246 | (struct iwi_notif_scan_channel *)(notif + 1); |
| 1247 | |
| 1248 | DPRINTFN(2, ("Scan of channel %u complete (%u)\n" , |
| 1249 | ic->ic_channels[chan->nchan].ic_freq, chan->nchan)); |
| 1250 | } |
| 1251 | #endif |
| 1252 | break; |
| 1253 | |
| 1254 | case IWI_NOTIF_TYPE_SCAN_COMPLETE: |
| 1255 | #ifdef IWI_DEBUG |
| 1256 | { |
| 1257 | struct iwi_notif_scan_complete *scan = |
| 1258 | (struct iwi_notif_scan_complete *)(notif + 1); |
| 1259 | |
| 1260 | DPRINTFN(2, ("Scan completed (%u, %u)\n" , scan->nchan, |
| 1261 | scan->status)); |
| 1262 | } |
| 1263 | #endif |
| 1264 | |
| 1265 | /* monitor mode uses scan to set the channel ... */ |
| 1266 | if (ic->ic_opmode != IEEE80211_M_MONITOR) { |
| 1267 | sc->flags &= ~IWI_FLAG_SCANNING; |
| 1268 | ieee80211_end_scan(ic); |
| 1269 | } else |
| 1270 | iwi_set_chan(sc, ic->ic_ibss_chan); |
| 1271 | break; |
| 1272 | |
| 1273 | case IWI_NOTIF_TYPE_AUTHENTICATION: |
| 1274 | auth = (struct iwi_notif_authentication *)(notif + 1); |
| 1275 | |
| 1276 | DPRINTFN(2, ("Authentication (%u)\n" , auth->state)); |
| 1277 | |
| 1278 | switch (auth->state) { |
| 1279 | case IWI_AUTH_SUCCESS: |
| 1280 | ieee80211_node_authorize(ic->ic_bss); |
| 1281 | ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); |
| 1282 | break; |
| 1283 | |
| 1284 | case IWI_AUTH_FAIL: |
| 1285 | break; |
| 1286 | |
| 1287 | case IWI_AUTH_SENT_1: |
| 1288 | case IWI_AUTH_RECV_2: |
| 1289 | case IWI_AUTH_SEQ1_PASS: |
| 1290 | break; |
| 1291 | |
| 1292 | case IWI_AUTH_SEQ1_FAIL: |
| 1293 | break; |
| 1294 | |
| 1295 | default: |
| 1296 | aprint_error_dev(sc->sc_dev, |
| 1297 | "unknown authentication state %u\n" , auth->state); |
| 1298 | } |
| 1299 | break; |
| 1300 | |
| 1301 | case IWI_NOTIF_TYPE_ASSOCIATION: |
| 1302 | assoc = (struct iwi_notif_association *)(notif + 1); |
| 1303 | |
| 1304 | DPRINTFN(2, ("Association (%u, %u)\n" , assoc->state, |
| 1305 | assoc->status)); |
| 1306 | |
| 1307 | switch (assoc->state) { |
| 1308 | case IWI_AUTH_SUCCESS: |
| 1309 | /* re-association, do nothing */ |
| 1310 | break; |
| 1311 | |
| 1312 | case IWI_ASSOC_SUCCESS: |
| 1313 | ieee80211_new_state(ic, IEEE80211_S_RUN, -1); |
| 1314 | break; |
| 1315 | |
| 1316 | case IWI_ASSOC_FAIL: |
| 1317 | ieee80211_begin_scan(ic, 1); |
| 1318 | break; |
| 1319 | |
| 1320 | default: |
| 1321 | aprint_error_dev(sc->sc_dev, |
| 1322 | "unknown association state %u\n" , assoc->state); |
| 1323 | } |
| 1324 | break; |
| 1325 | |
| 1326 | case IWI_NOTIF_TYPE_BEACON: |
| 1327 | beacon = (struct iwi_notif_beacon_state *)(notif + 1); |
| 1328 | |
| 1329 | if (beacon->state == IWI_BEACON_MISS) { |
| 1330 | DPRINTFN(5, ("%s: %u beacon(s) missed\n" , |
| 1331 | device_xname(sc->sc_dev), le32toh(beacon->number))); |
| 1332 | } |
| 1333 | break; |
| 1334 | |
| 1335 | case IWI_NOTIF_TYPE_FRAG_LENGTH: |
| 1336 | case IWI_NOTIF_TYPE_LINK_QUALITY: |
| 1337 | case IWI_NOTIF_TYPE_TGI_TX_KEY: |
| 1338 | case IWI_NOTIF_TYPE_CALIBRATION: |
| 1339 | case IWI_NOTIF_TYPE_NOISE: |
| 1340 | DPRINTFN(5, ("Notification (%u)\n" , notif->type)); |
| 1341 | break; |
| 1342 | |
| 1343 | default: |
| 1344 | DPRINTF(("%s: unknown notification type %u flags 0x%x len %d\n" , |
| 1345 | device_xname(sc->sc_dev), notif->type, notif->flags, |
| 1346 | le16toh(notif->len))); |
| 1347 | } |
| 1348 | } |
| 1349 | |
| 1350 | static void |
| 1351 | iwi_cmd_intr(struct iwi_softc *sc) |
| 1352 | { |
| 1353 | |
| 1354 | (void)CSR_READ_4(sc, IWI_CSR_CMD_RIDX); |
| 1355 | |
| 1356 | bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, |
| 1357 | sc->cmdq.next * IWI_CMD_DESC_SIZE, IWI_CMD_DESC_SIZE, |
| 1358 | BUS_DMASYNC_POSTWRITE); |
| 1359 | |
| 1360 | wakeup(&sc->cmdq.desc[sc->cmdq.next]); |
| 1361 | |
| 1362 | sc->cmdq.next = (sc->cmdq.next + 1) % sc->cmdq.count; |
| 1363 | |
| 1364 | if (--sc->cmdq.queued > 0) { |
| 1365 | CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, (sc->cmdq.next + 1) % sc->cmdq.count); |
| 1366 | } |
| 1367 | } |
| 1368 | |
| 1369 | static void |
| 1370 | iwi_rx_intr(struct iwi_softc *sc) |
| 1371 | { |
| 1372 | struct iwi_rx_data *data; |
| 1373 | struct iwi_hdr *hdr; |
| 1374 | uint32_t hw; |
| 1375 | |
| 1376 | hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); |
| 1377 | |
| 1378 | for (; sc->rxq.cur != hw;) { |
| 1379 | data = &sc->rxq.data[sc->rxq.cur]; |
| 1380 | |
| 1381 | bus_dmamap_sync(sc->sc_dmat, data->map, 0, |
| 1382 | data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); |
| 1383 | |
| 1384 | hdr = mtod(data->m, struct iwi_hdr *); |
| 1385 | |
| 1386 | switch (hdr->type) { |
| 1387 | case IWI_HDR_TYPE_FRAME: |
| 1388 | iwi_frame_intr(sc, data, sc->rxq.cur, |
| 1389 | (struct iwi_frame *)(hdr + 1)); |
| 1390 | break; |
| 1391 | |
| 1392 | case IWI_HDR_TYPE_NOTIF: |
| 1393 | iwi_notification_intr(sc, |
| 1394 | (struct iwi_notif *)(hdr + 1)); |
| 1395 | break; |
| 1396 | |
| 1397 | default: |
| 1398 | aprint_error_dev(sc->sc_dev, "unknown hdr type %u\n" , |
| 1399 | hdr->type); |
| 1400 | } |
| 1401 | |
| 1402 | bus_dmamap_sync(sc->sc_dmat, data->map, 0, |
| 1403 | data->map->dm_mapsize, BUS_DMASYNC_PREREAD); |
| 1404 | |
| 1405 | DPRINTFN(15, ("rx done idx=%u\n" , sc->rxq.cur)); |
| 1406 | |
| 1407 | sc->rxq.cur = (sc->rxq.cur + 1) % sc->rxq.count; |
| 1408 | } |
| 1409 | |
| 1410 | /* Tell the firmware what we have processed */ |
| 1411 | hw = (hw == 0) ? sc->rxq.count - 1 : hw - 1; |
| 1412 | CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); |
| 1413 | } |
| 1414 | |
| 1415 | static void |
| 1416 | iwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) |
| 1417 | { |
| 1418 | struct ifnet *ifp = &sc->sc_if; |
| 1419 | struct iwi_tx_data *data; |
| 1420 | uint32_t hw; |
| 1421 | |
| 1422 | hw = CSR_READ_4(sc, txq->csr_ridx); |
| 1423 | |
| 1424 | for (; txq->next != hw;) { |
| 1425 | data = &txq->data[txq->next]; |
| 1426 | |
| 1427 | bus_dmamap_sync(sc->sc_dmat, data->map, 0, |
| 1428 | data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); |
| 1429 | bus_dmamap_unload(sc->sc_dmat, data->map); |
| 1430 | m_freem(data->m); |
| 1431 | data->m = NULL; |
| 1432 | ieee80211_free_node(data->ni); |
| 1433 | data->ni = NULL; |
| 1434 | |
| 1435 | DPRINTFN(15, ("tx done idx=%u\n" , txq->next)); |
| 1436 | |
| 1437 | ifp->if_opackets++; |
| 1438 | |
| 1439 | txq->queued--; |
| 1440 | txq->next = (txq->next + 1) % txq->count; |
| 1441 | } |
| 1442 | |
| 1443 | sc->sc_tx_timer = 0; |
| 1444 | ifp->if_flags &= ~IFF_OACTIVE; |
| 1445 | |
| 1446 | /* Call start() since some buffer descriptors have been released */ |
| 1447 | (*ifp->if_start)(ifp); |
| 1448 | } |
| 1449 | |
| 1450 | static int |
| 1451 | iwi_intr(void *arg) |
| 1452 | { |
| 1453 | struct iwi_softc *sc = arg; |
| 1454 | uint32_t r; |
| 1455 | |
| 1456 | if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) |
| 1457 | return 0; |
| 1458 | |
| 1459 | /* Acknowledge interrupts */ |
| 1460 | CSR_WRITE_4(sc, IWI_CSR_INTR, r); |
| 1461 | |
| 1462 | if (r & IWI_INTR_FATAL_ERROR) { |
| 1463 | aprint_error_dev(sc->sc_dev, "fatal error\n" ); |
| 1464 | sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; |
| 1465 | iwi_stop(&sc->sc_if, 1); |
| 1466 | return (1); |
| 1467 | } |
| 1468 | |
| 1469 | if (r & IWI_INTR_FW_INITED) { |
| 1470 | if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) |
| 1471 | wakeup(sc); |
| 1472 | } |
| 1473 | |
| 1474 | if (r & IWI_INTR_RADIO_OFF) { |
| 1475 | DPRINTF(("radio transmitter off\n" )); |
| 1476 | sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; |
| 1477 | iwi_stop(&sc->sc_if, 1); |
| 1478 | return (1); |
| 1479 | } |
| 1480 | |
| 1481 | if (r & IWI_INTR_CMD_DONE) |
| 1482 | iwi_cmd_intr(sc); |
| 1483 | |
| 1484 | if (r & IWI_INTR_TX1_DONE) |
| 1485 | iwi_tx_intr(sc, &sc->txq[0]); |
| 1486 | |
| 1487 | if (r & IWI_INTR_TX2_DONE) |
| 1488 | iwi_tx_intr(sc, &sc->txq[1]); |
| 1489 | |
| 1490 | if (r & IWI_INTR_TX3_DONE) |
| 1491 | iwi_tx_intr(sc, &sc->txq[2]); |
| 1492 | |
| 1493 | if (r & IWI_INTR_TX4_DONE) |
| 1494 | iwi_tx_intr(sc, &sc->txq[3]); |
| 1495 | |
| 1496 | if (r & IWI_INTR_RX_DONE) |
| 1497 | iwi_rx_intr(sc); |
| 1498 | |
| 1499 | if (r & IWI_INTR_PARITY_ERROR) |
| 1500 | aprint_error_dev(sc->sc_dev, "parity error\n" ); |
| 1501 | |
| 1502 | return 1; |
| 1503 | } |
| 1504 | |
| 1505 | static int |
| 1506 | iwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, |
| 1507 | int async) |
| 1508 | { |
| 1509 | struct iwi_cmd_desc *desc; |
| 1510 | |
| 1511 | desc = &sc->cmdq.desc[sc->cmdq.cur]; |
| 1512 | |
| 1513 | desc->hdr.type = IWI_HDR_TYPE_COMMAND; |
| 1514 | desc->hdr.flags = IWI_HDR_FLAG_IRQ; |
| 1515 | desc->type = type; |
| 1516 | desc->len = len; |
| 1517 | memcpy(desc->data, data, len); |
| 1518 | |
| 1519 | bus_dmamap_sync(sc->sc_dmat, sc->cmdq.desc_map, |
| 1520 | sc->cmdq.cur * IWI_CMD_DESC_SIZE, |
| 1521 | IWI_CMD_DESC_SIZE, BUS_DMASYNC_PREWRITE); |
| 1522 | |
| 1523 | DPRINTFN(2, ("sending command idx=%u type=%u len=%u async=%d\n" , |
| 1524 | sc->cmdq.cur, type, len, async)); |
| 1525 | |
| 1526 | sc->cmdq.cur = (sc->cmdq.cur + 1) % sc->cmdq.count; |
| 1527 | |
| 1528 | if (++sc->cmdq.queued == 1) |
| 1529 | CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); |
| 1530 | |
| 1531 | return async ? 0 : tsleep(desc, 0, "iwicmd" , hz); |
| 1532 | } |
| 1533 | |
| 1534 | static void |
| 1535 | iwi_write_ibssnode(struct iwi_softc *sc, const struct iwi_node *in) |
| 1536 | { |
| 1537 | struct iwi_ibssnode node; |
| 1538 | |
| 1539 | /* write node information into NIC memory */ |
| 1540 | memset(&node, 0, sizeof node); |
| 1541 | IEEE80211_ADDR_COPY(node.bssid, in->in_node.ni_macaddr); |
| 1542 | |
| 1543 | CSR_WRITE_REGION_1(sc, |
| 1544 | IWI_CSR_NODE_BASE + in->in_station * sizeof node, |
| 1545 | (uint8_t *)&node, sizeof node); |
| 1546 | } |
| 1547 | |
| 1548 | static int |
| 1549 | iwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni, |
| 1550 | int ac) |
| 1551 | { |
| 1552 | struct iwi_softc *sc = ifp->if_softc; |
| 1553 | struct ieee80211com *ic = &sc->sc_ic; |
| 1554 | struct iwi_node *in = (struct iwi_node *)ni; |
| 1555 | struct ieee80211_frame *wh; |
| 1556 | struct ieee80211_key *k; |
| 1557 | const struct chanAccParams *cap; |
| 1558 | struct iwi_tx_ring *txq = &sc->txq[ac]; |
| 1559 | struct iwi_tx_data *data; |
| 1560 | struct iwi_tx_desc *desc; |
| 1561 | struct mbuf *mnew; |
| 1562 | int error, hdrlen, i, noack = 0; |
| 1563 | |
| 1564 | wh = mtod(m0, struct ieee80211_frame *); |
| 1565 | |
| 1566 | if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { |
| 1567 | hdrlen = sizeof (struct ieee80211_qosframe); |
| 1568 | cap = &ic->ic_wme.wme_chanParams; |
| 1569 | noack = cap->cap_wmeParams[ac].wmep_noackPolicy; |
| 1570 | } else |
| 1571 | hdrlen = sizeof (struct ieee80211_frame); |
| 1572 | |
| 1573 | /* |
| 1574 | * This is only used in IBSS mode where the firmware expect an index |
| 1575 | * in a h/w table instead of a destination address. |
| 1576 | */ |
| 1577 | if (ic->ic_opmode == IEEE80211_M_IBSS && in->in_station == -1) { |
| 1578 | in->in_station = iwi_alloc_unr(sc); |
| 1579 | |
| 1580 | if (in->in_station == -1) { /* h/w table is full */ |
| 1581 | m_freem(m0); |
| 1582 | ieee80211_free_node(ni); |
| 1583 | ifp->if_oerrors++; |
| 1584 | return 0; |
| 1585 | } |
| 1586 | iwi_write_ibssnode(sc, in); |
| 1587 | } |
| 1588 | |
| 1589 | if (wh->i_fc[1] & IEEE80211_FC1_WEP) { |
| 1590 | k = ieee80211_crypto_encap(ic, ni, m0); |
| 1591 | if (k == NULL) { |
| 1592 | m_freem(m0); |
| 1593 | return ENOBUFS; |
| 1594 | } |
| 1595 | |
| 1596 | /* packet header may have moved, reset our local pointer */ |
| 1597 | wh = mtod(m0, struct ieee80211_frame *); |
| 1598 | } |
| 1599 | |
| 1600 | if (sc->sc_drvbpf != NULL) { |
| 1601 | struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; |
| 1602 | |
| 1603 | tap->wt_flags = 0; |
| 1604 | tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); |
| 1605 | tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); |
| 1606 | |
| 1607 | bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); |
| 1608 | } |
| 1609 | |
| 1610 | data = &txq->data[txq->cur]; |
| 1611 | desc = &txq->desc[txq->cur]; |
| 1612 | |
| 1613 | /* save and trim IEEE802.11 header */ |
| 1614 | m_copydata(m0, 0, hdrlen, (void *)&desc->wh); |
| 1615 | m_adj(m0, hdrlen); |
| 1616 | |
| 1617 | error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, |
| 1618 | BUS_DMA_WRITE | BUS_DMA_NOWAIT); |
| 1619 | if (error != 0 && error != EFBIG) { |
| 1620 | aprint_error_dev(sc->sc_dev, "could not map mbuf (error %d)\n" , |
| 1621 | error); |
| 1622 | m_freem(m0); |
| 1623 | return error; |
| 1624 | } |
| 1625 | if (error != 0) { |
| 1626 | /* too many fragments, linearize */ |
| 1627 | |
| 1628 | MGETHDR(mnew, M_DONTWAIT, MT_DATA); |
| 1629 | if (mnew == NULL) { |
| 1630 | m_freem(m0); |
| 1631 | return ENOMEM; |
| 1632 | } |
| 1633 | |
| 1634 | M_COPY_PKTHDR(mnew, m0); |
| 1635 | |
| 1636 | /* If the data won't fit in the header, get a cluster */ |
| 1637 | if (m0->m_pkthdr.len > MHLEN) { |
| 1638 | MCLGET(mnew, M_DONTWAIT); |
| 1639 | if (!(mnew->m_flags & M_EXT)) { |
| 1640 | m_freem(m0); |
| 1641 | m_freem(mnew); |
| 1642 | return ENOMEM; |
| 1643 | } |
| 1644 | } |
| 1645 | m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, void *)); |
| 1646 | m_freem(m0); |
| 1647 | mnew->m_len = mnew->m_pkthdr.len; |
| 1648 | m0 = mnew; |
| 1649 | |
| 1650 | error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, |
| 1651 | BUS_DMA_WRITE | BUS_DMA_NOWAIT); |
| 1652 | if (error != 0) { |
| 1653 | aprint_error_dev(sc->sc_dev, |
| 1654 | "could not map mbuf (error %d)\n" , error); |
| 1655 | m_freem(m0); |
| 1656 | return error; |
| 1657 | } |
| 1658 | } |
| 1659 | |
| 1660 | data->m = m0; |
| 1661 | data->ni = ni; |
| 1662 | |
| 1663 | desc->hdr.type = IWI_HDR_TYPE_DATA; |
| 1664 | desc->hdr.flags = IWI_HDR_FLAG_IRQ; |
| 1665 | desc->station = |
| 1666 | (ic->ic_opmode == IEEE80211_M_IBSS) ? in->in_station : 0; |
| 1667 | desc->cmd = IWI_DATA_CMD_TX; |
| 1668 | desc->len = htole16(m0->m_pkthdr.len); |
| 1669 | desc->flags = 0; |
| 1670 | desc->xflags = 0; |
| 1671 | |
| 1672 | if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) |
| 1673 | desc->flags |= IWI_DATA_FLAG_NEED_ACK; |
| 1674 | |
| 1675 | #if 0 |
| 1676 | if (ic->ic_flags & IEEE80211_F_PRIVACY) { |
| 1677 | desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; |
| 1678 | desc->wep_txkey = ic->ic_crypto.cs_def_txkey; |
| 1679 | } else |
| 1680 | #endif |
| 1681 | desc->flags |= IWI_DATA_FLAG_NO_WEP; |
| 1682 | |
| 1683 | if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) |
| 1684 | desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; |
| 1685 | |
| 1686 | if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) |
| 1687 | desc->xflags |= IWI_DATA_XFLAG_QOS; |
| 1688 | |
| 1689 | if (ic->ic_curmode == IEEE80211_MODE_11B) |
| 1690 | desc->xflags |= IWI_DATA_XFLAG_CCK; |
| 1691 | |
| 1692 | desc->nseg = htole32(data->map->dm_nsegs); |
| 1693 | for (i = 0; i < data->map->dm_nsegs; i++) { |
| 1694 | desc->seg_addr[i] = htole32(data->map->dm_segs[i].ds_addr); |
| 1695 | desc->seg_len[i] = htole16(data->map->dm_segs[i].ds_len); |
| 1696 | } |
| 1697 | |
| 1698 | bus_dmamap_sync(sc->sc_dmat, txq->desc_map, |
| 1699 | txq->cur * IWI_TX_DESC_SIZE, |
| 1700 | IWI_TX_DESC_SIZE, BUS_DMASYNC_PREWRITE); |
| 1701 | |
| 1702 | bus_dmamap_sync(sc->sc_dmat, data->map, 0, data->map->dm_mapsize, |
| 1703 | BUS_DMASYNC_PREWRITE); |
| 1704 | |
| 1705 | DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n" , |
| 1706 | ac, txq->cur, le16toh(desc->len), le32toh(desc->nseg))); |
| 1707 | |
| 1708 | /* Inform firmware about this new packet */ |
| 1709 | txq->queued++; |
| 1710 | txq->cur = (txq->cur + 1) % txq->count; |
| 1711 | CSR_WRITE_4(sc, txq->csr_widx, txq->cur); |
| 1712 | |
| 1713 | return 0; |
| 1714 | } |
| 1715 | |
| 1716 | static void |
| 1717 | iwi_start(struct ifnet *ifp) |
| 1718 | { |
| 1719 | struct iwi_softc *sc = ifp->if_softc; |
| 1720 | struct ieee80211com *ic = &sc->sc_ic; |
| 1721 | struct mbuf *m0; |
| 1722 | struct ether_header *eh; |
| 1723 | struct ieee80211_node *ni; |
| 1724 | int ac; |
| 1725 | |
| 1726 | if (ic->ic_state != IEEE80211_S_RUN) |
| 1727 | return; |
| 1728 | |
| 1729 | for (;;) { |
| 1730 | IF_DEQUEUE(&ifp->if_snd, m0); |
| 1731 | if (m0 == NULL) |
| 1732 | break; |
| 1733 | |
| 1734 | if (m0->m_len < sizeof (struct ether_header) && |
| 1735 | (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) { |
| 1736 | ifp->if_oerrors++; |
| 1737 | continue; |
| 1738 | } |
| 1739 | |
| 1740 | eh = mtod(m0, struct ether_header *); |
| 1741 | ni = ieee80211_find_txnode(ic, eh->ether_dhost); |
| 1742 | if (ni == NULL) { |
| 1743 | m_freem(m0); |
| 1744 | ifp->if_oerrors++; |
| 1745 | continue; |
| 1746 | } |
| 1747 | |
| 1748 | /* classify mbuf so we can find which tx ring to use */ |
| 1749 | if (ieee80211_classify(ic, m0, ni) != 0) { |
| 1750 | m_freem(m0); |
| 1751 | ieee80211_free_node(ni); |
| 1752 | ifp->if_oerrors++; |
| 1753 | continue; |
| 1754 | } |
| 1755 | |
| 1756 | /* no QoS encapsulation for EAPOL frames */ |
| 1757 | ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? |
| 1758 | M_WME_GETAC(m0) : WME_AC_BE; |
| 1759 | |
| 1760 | if (sc->txq[ac].queued > sc->txq[ac].count - 8) { |
| 1761 | /* there is no place left in this ring */ |
| 1762 | IF_PREPEND(&ifp->if_snd, m0); |
| 1763 | ifp->if_flags |= IFF_OACTIVE; |
| 1764 | break; |
| 1765 | } |
| 1766 | |
| 1767 | bpf_mtap(ifp, m0); |
| 1768 | |
| 1769 | m0 = ieee80211_encap(ic, m0, ni); |
| 1770 | if (m0 == NULL) { |
| 1771 | ieee80211_free_node(ni); |
| 1772 | ifp->if_oerrors++; |
| 1773 | continue; |
| 1774 | } |
| 1775 | |
| 1776 | bpf_mtap3(ic->ic_rawbpf, m0); |
| 1777 | |
| 1778 | if (iwi_tx_start(ifp, m0, ni, ac) != 0) { |
| 1779 | ieee80211_free_node(ni); |
| 1780 | ifp->if_oerrors++; |
| 1781 | break; |
| 1782 | } |
| 1783 | |
| 1784 | /* start watchdog timer */ |
| 1785 | sc->sc_tx_timer = 5; |
| 1786 | ifp->if_timer = 1; |
| 1787 | } |
| 1788 | } |
| 1789 | |
| 1790 | static void |
| 1791 | iwi_watchdog(struct ifnet *ifp) |
| 1792 | { |
| 1793 | struct iwi_softc *sc = ifp->if_softc; |
| 1794 | |
| 1795 | ifp->if_timer = 0; |
| 1796 | |
| 1797 | if (sc->sc_tx_timer > 0) { |
| 1798 | if (--sc->sc_tx_timer == 0) { |
| 1799 | aprint_error_dev(sc->sc_dev, "device timeout\n" ); |
| 1800 | ifp->if_oerrors++; |
| 1801 | ifp->if_flags &= ~IFF_UP; |
| 1802 | iwi_stop(ifp, 1); |
| 1803 | return; |
| 1804 | } |
| 1805 | ifp->if_timer = 1; |
| 1806 | } |
| 1807 | |
| 1808 | ieee80211_watchdog(&sc->sc_ic); |
| 1809 | } |
| 1810 | |
| 1811 | static int |
| 1812 | iwi_get_table0(struct iwi_softc *sc, uint32_t *tbl) |
| 1813 | { |
| 1814 | uint32_t size, buf[128]; |
| 1815 | |
| 1816 | if (!(sc->flags & IWI_FLAG_FW_INITED)) { |
| 1817 | memset(buf, 0, sizeof buf); |
| 1818 | return copyout(buf, tbl, sizeof buf); |
| 1819 | } |
| 1820 | |
| 1821 | size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); |
| 1822 | CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); |
| 1823 | |
| 1824 | return copyout(buf, tbl, sizeof buf); |
| 1825 | } |
| 1826 | |
| 1827 | static int |
| 1828 | iwi_ioctl(struct ifnet *ifp, u_long cmd, void *data) |
| 1829 | { |
| 1830 | #define IS_RUNNING(ifp) \ |
| 1831 | ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) |
| 1832 | |
| 1833 | struct iwi_softc *sc = ifp->if_softc; |
| 1834 | struct ieee80211com *ic = &sc->sc_ic; |
| 1835 | struct ifreq *ifr = (struct ifreq *)data; |
| 1836 | int s, error = 0; |
| 1837 | int val; |
| 1838 | |
| 1839 | s = splnet(); |
| 1840 | |
| 1841 | switch (cmd) { |
| 1842 | case SIOCSIFFLAGS: |
| 1843 | if ((error = ifioctl_common(ifp, cmd, data)) != 0) |
| 1844 | break; |
| 1845 | if (ifp->if_flags & IFF_UP) { |
| 1846 | if (!(ifp->if_flags & IFF_RUNNING)) |
| 1847 | iwi_init(ifp); |
| 1848 | } else { |
| 1849 | if (ifp->if_flags & IFF_RUNNING) |
| 1850 | iwi_stop(ifp, 1); |
| 1851 | } |
| 1852 | break; |
| 1853 | |
| 1854 | case SIOCADDMULTI: |
| 1855 | case SIOCDELMULTI: |
| 1856 | /* XXX no h/w multicast filter? --dyoung */ |
| 1857 | if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { |
| 1858 | /* setup multicast filter, etc */ |
| 1859 | error = 0; |
| 1860 | } |
| 1861 | break; |
| 1862 | |
| 1863 | case SIOCGTABLE0: |
| 1864 | error = iwi_get_table0(sc, (uint32_t *)ifr->ifr_data); |
| 1865 | break; |
| 1866 | |
| 1867 | case SIOCGRADIO: |
| 1868 | val = !iwi_getrfkill(sc); |
| 1869 | error = copyout(&val, (int *)ifr->ifr_data, sizeof val); |
| 1870 | break; |
| 1871 | |
| 1872 | case SIOCSIFMEDIA: |
| 1873 | if (ifr->ifr_media & IFM_IEEE80211_ADHOC) { |
| 1874 | sc->sc_fwname = "ipw2200-ibss.fw" ; |
| 1875 | } else if (ifr->ifr_media & IFM_IEEE80211_MONITOR) { |
| 1876 | sc->sc_fwname = "ipw2200-sniffer.fw" ; |
| 1877 | } else { |
| 1878 | sc->sc_fwname = "ipw2200-bss.fw" ; |
| 1879 | } |
| 1880 | error = iwi_cache_firmware(sc); |
| 1881 | if (error) |
| 1882 | break; |
| 1883 | /* FALLTRHOUGH */ |
| 1884 | |
| 1885 | default: |
| 1886 | error = ieee80211_ioctl(&sc->sc_ic, cmd, data); |
| 1887 | |
| 1888 | if (error == ENETRESET) { |
| 1889 | if (IS_RUNNING(ifp) && |
| 1890 | (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) |
| 1891 | iwi_init(ifp); |
| 1892 | error = 0; |
| 1893 | } |
| 1894 | } |
| 1895 | |
| 1896 | splx(s); |
| 1897 | return error; |
| 1898 | #undef IS_RUNNING |
| 1899 | } |
| 1900 | |
| 1901 | static void |
| 1902 | iwi_stop_master(struct iwi_softc *sc) |
| 1903 | { |
| 1904 | int ntries; |
| 1905 | |
| 1906 | /* Disable interrupts */ |
| 1907 | CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); |
| 1908 | |
| 1909 | CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); |
| 1910 | for (ntries = 0; ntries < 5; ntries++) { |
| 1911 | if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) |
| 1912 | break; |
| 1913 | DELAY(10); |
| 1914 | } |
| 1915 | if (ntries == 5) |
| 1916 | aprint_error_dev(sc->sc_dev, "timeout waiting for master\n" ); |
| 1917 | |
| 1918 | CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | |
| 1919 | IWI_RST_PRINCETON_RESET); |
| 1920 | |
| 1921 | sc->flags &= ~IWI_FLAG_FW_INITED; |
| 1922 | } |
| 1923 | |
| 1924 | static int |
| 1925 | iwi_reset(struct iwi_softc *sc) |
| 1926 | { |
| 1927 | int i, ntries; |
| 1928 | |
| 1929 | iwi_stop_master(sc); |
| 1930 | |
| 1931 | /* Move adapter to D0 state */ |
| 1932 | CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | |
| 1933 | IWI_CTL_INIT); |
| 1934 | |
| 1935 | /* Initialize Phase-Locked Level (PLL) */ |
| 1936 | CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); |
| 1937 | |
| 1938 | /* Wait for clock stabilization */ |
| 1939 | for (ntries = 0; ntries < 1000; ntries++) { |
| 1940 | if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) |
| 1941 | break; |
| 1942 | DELAY(200); |
| 1943 | } |
| 1944 | if (ntries == 1000) { |
| 1945 | aprint_error_dev(sc->sc_dev, |
| 1946 | "timeout waiting for clock stabilization\n" ); |
| 1947 | return ETIMEDOUT; |
| 1948 | } |
| 1949 | |
| 1950 | CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | |
| 1951 | IWI_RST_SW_RESET); |
| 1952 | |
| 1953 | DELAY(10); |
| 1954 | |
| 1955 | CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | |
| 1956 | IWI_CTL_INIT); |
| 1957 | |
| 1958 | /* Clear NIC memory */ |
| 1959 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); |
| 1960 | for (i = 0; i < 0xc000; i++) |
| 1961 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); |
| 1962 | |
| 1963 | return 0; |
| 1964 | } |
| 1965 | |
| 1966 | static int |
| 1967 | iwi_load_ucode(struct iwi_softc *sc, void *uc, int size) |
| 1968 | { |
| 1969 | uint16_t *w; |
| 1970 | int ntries, i; |
| 1971 | |
| 1972 | CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | |
| 1973 | IWI_RST_STOP_MASTER); |
| 1974 | for (ntries = 0; ntries < 5; ntries++) { |
| 1975 | if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) |
| 1976 | break; |
| 1977 | DELAY(10); |
| 1978 | } |
| 1979 | if (ntries == 5) { |
| 1980 | aprint_error_dev(sc->sc_dev, "timeout waiting for master\n" ); |
| 1981 | return ETIMEDOUT; |
| 1982 | } |
| 1983 | |
| 1984 | MEM_WRITE_4(sc, 0x3000e0, 0x80000000); |
| 1985 | DELAY(5000); |
| 1986 | CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & |
| 1987 | ~IWI_RST_PRINCETON_RESET); |
| 1988 | DELAY(5000); |
| 1989 | MEM_WRITE_4(sc, 0x3000e0, 0); |
| 1990 | DELAY(1000); |
| 1991 | MEM_WRITE_4(sc, 0x300004, 1); |
| 1992 | DELAY(1000); |
| 1993 | MEM_WRITE_4(sc, 0x300004, 0); |
| 1994 | DELAY(1000); |
| 1995 | MEM_WRITE_1(sc, 0x200000, 0x00); |
| 1996 | MEM_WRITE_1(sc, 0x200000, 0x40); |
| 1997 | DELAY(1000); |
| 1998 | |
| 1999 | /* Adapter is buggy, we must set the address for each word */ |
| 2000 | for (w = uc; size > 0; w++, size -= 2) |
| 2001 | MEM_WRITE_2(sc, 0x200010, htole16(*w)); |
| 2002 | |
| 2003 | MEM_WRITE_1(sc, 0x200000, 0x00); |
| 2004 | MEM_WRITE_1(sc, 0x200000, 0x80); |
| 2005 | |
| 2006 | /* Wait until we get a response in the uc queue */ |
| 2007 | for (ntries = 0; ntries < 100; ntries++) { |
| 2008 | if (MEM_READ_1(sc, 0x200000) & 1) |
| 2009 | break; |
| 2010 | DELAY(100); |
| 2011 | } |
| 2012 | if (ntries == 100) { |
| 2013 | aprint_error_dev(sc->sc_dev, |
| 2014 | "timeout waiting for ucode to initialize\n" ); |
| 2015 | return ETIMEDOUT; |
| 2016 | } |
| 2017 | |
| 2018 | /* Empty the uc queue or the firmware will not initialize properly */ |
| 2019 | for (i = 0; i < 7; i++) |
| 2020 | MEM_READ_4(sc, 0x200004); |
| 2021 | |
| 2022 | MEM_WRITE_1(sc, 0x200000, 0x00); |
| 2023 | |
| 2024 | return 0; |
| 2025 | } |
| 2026 | |
| 2027 | /* macro to handle unaligned little endian data in firmware image */ |
| 2028 | #define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) |
| 2029 | static int |
| 2030 | iwi_load_firmware(struct iwi_softc *sc, void *fw, int size) |
| 2031 | { |
| 2032 | bus_dmamap_t map; |
| 2033 | u_char *p, *end; |
| 2034 | uint32_t sentinel, ctl, sum; |
| 2035 | uint32_t cs, sl, cd, cl; |
| 2036 | int ntries, nsegs, error; |
| 2037 | int sn; |
| 2038 | |
| 2039 | nsegs = atop((vaddr_t)fw+size-1) - atop((vaddr_t)fw) + 1; |
| 2040 | |
| 2041 | /* Create a DMA map for the firmware image */ |
| 2042 | error = bus_dmamap_create(sc->sc_dmat, size, nsegs, size, 0, |
| 2043 | BUS_DMA_NOWAIT, &map); |
| 2044 | if (error != 0) { |
| 2045 | aprint_error_dev(sc->sc_dev, |
| 2046 | "could not create firmware DMA map\n" ); |
| 2047 | map = NULL; |
| 2048 | goto fail1; |
| 2049 | } |
| 2050 | |
| 2051 | error = bus_dmamap_load(sc->sc_dmat, map, fw, size, NULL, |
| 2052 | BUS_DMA_NOWAIT | BUS_DMA_WRITE); |
| 2053 | if (error != 0) { |
| 2054 | aprint_error_dev(sc->sc_dev, "could not load fw dma map(%d)\n" , |
| 2055 | error); |
| 2056 | goto fail2; |
| 2057 | } |
| 2058 | |
| 2059 | /* Make sure the adapter will get up-to-date values */ |
| 2060 | bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); |
| 2061 | |
| 2062 | /* Tell the adapter where the command blocks are stored */ |
| 2063 | MEM_WRITE_4(sc, 0x3000a0, 0x27000); |
| 2064 | |
| 2065 | /* |
| 2066 | * Store command blocks into adapter's internal memory using register |
| 2067 | * indirections. The adapter will read the firmware image through DMA |
| 2068 | * using information stored in command blocks. |
| 2069 | */ |
| 2070 | p = fw; |
| 2071 | end = p + size; |
| 2072 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); |
| 2073 | |
| 2074 | sn = 0; |
| 2075 | sl = cl = 0; |
| 2076 | cs = cd = 0; |
| 2077 | while (p < end) { |
| 2078 | if (sl == 0) { |
| 2079 | cs = map->dm_segs[sn].ds_addr; |
| 2080 | sl = map->dm_segs[sn].ds_len; |
| 2081 | sn++; |
| 2082 | } |
| 2083 | if (cl == 0) { |
| 2084 | cd = GETLE32(p); p += 4; cs += 4; sl -= 4; |
| 2085 | cl = GETLE32(p); p += 4; cs += 4; sl -= 4; |
| 2086 | } |
| 2087 | while (sl > 0 && cl > 0) { |
| 2088 | int len = min(cl, sl); |
| 2089 | |
| 2090 | sl -= len; |
| 2091 | cl -= len; |
| 2092 | p += len; |
| 2093 | |
| 2094 | while (len > 0) { |
| 2095 | int mlen = min(len, IWI_CB_MAXDATALEN); |
| 2096 | |
| 2097 | ctl = IWI_CB_DEFAULT_CTL | mlen; |
| 2098 | sum = ctl ^ cs ^ cd; |
| 2099 | |
| 2100 | /* Write a command block */ |
| 2101 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); |
| 2102 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cs); |
| 2103 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, cd); |
| 2104 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); |
| 2105 | |
| 2106 | cs += mlen; |
| 2107 | cd += mlen; |
| 2108 | len -= mlen; |
| 2109 | } |
| 2110 | } |
| 2111 | } |
| 2112 | |
| 2113 | /* Write a fictive final command block (sentinel) */ |
| 2114 | sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); |
| 2115 | CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); |
| 2116 | |
| 2117 | CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) & |
| 2118 | ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER)); |
| 2119 | |
| 2120 | /* Tell the adapter to start processing command blocks */ |
| 2121 | MEM_WRITE_4(sc, 0x3000a4, 0x540100); |
| 2122 | |
| 2123 | /* Wait until the adapter has processed all command blocks */ |
| 2124 | for (ntries = 0; ntries < 400; ntries++) { |
| 2125 | if (MEM_READ_4(sc, 0x3000d0) >= sentinel) |
| 2126 | break; |
| 2127 | DELAY(100); |
| 2128 | } |
| 2129 | if (ntries == 400) { |
| 2130 | aprint_error_dev(sc->sc_dev, "timeout processing cb\n" ); |
| 2131 | error = ETIMEDOUT; |
| 2132 | goto fail3; |
| 2133 | } |
| 2134 | |
| 2135 | /* We're done with command blocks processing */ |
| 2136 | MEM_WRITE_4(sc, 0x3000a4, 0x540c00); |
| 2137 | |
| 2138 | /* Allow interrupts so we know when the firmware is inited */ |
| 2139 | CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); |
| 2140 | |
| 2141 | /* Tell the adapter to initialize the firmware */ |
| 2142 | CSR_WRITE_4(sc, IWI_CSR_RST, 0); |
| 2143 | CSR_WRITE_4(sc, IWI_CSR_CTL, CSR_READ_4(sc, IWI_CSR_CTL) | |
| 2144 | IWI_CTL_ALLOW_STANDBY); |
| 2145 | |
| 2146 | /* Wait at most one second for firmware initialization to complete */ |
| 2147 | if ((error = tsleep(sc, 0, "iwiinit" , hz)) != 0) { |
| 2148 | aprint_error_dev(sc->sc_dev, |
| 2149 | "timeout waiting for firmware initialization to complete\n" ); |
| 2150 | goto fail3; |
| 2151 | } |
| 2152 | |
| 2153 | fail3: |
| 2154 | bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); |
| 2155 | bus_dmamap_unload(sc->sc_dmat, map); |
| 2156 | fail2: |
| 2157 | if (map != NULL) |
| 2158 | bus_dmamap_destroy(sc->sc_dmat, map); |
| 2159 | |
| 2160 | fail1: |
| 2161 | return error; |
| 2162 | } |
| 2163 | |
| 2164 | /* |
| 2165 | * Store firmware into kernel memory so we can download it when we need to, |
| 2166 | * e.g when the adapter wakes up from suspend mode. |
| 2167 | */ |
| 2168 | static int |
| 2169 | iwi_cache_firmware(struct iwi_softc *sc) |
| 2170 | { |
| 2171 | struct iwi_firmware *kfw = &sc->fw; |
| 2172 | firmware_handle_t fwh; |
| 2173 | struct iwi_firmware_hdr *hdr; |
| 2174 | off_t size; |
| 2175 | char *fw; |
| 2176 | int error; |
| 2177 | |
| 2178 | if (iwi_accept_eula == 0) { |
| 2179 | aprint_error_dev(sc->sc_dev, |
| 2180 | "EULA not accepted; please see the iwi(4) man page.\n" ); |
| 2181 | return EPERM; |
| 2182 | } |
| 2183 | |
| 2184 | iwi_free_firmware(sc); |
| 2185 | error = firmware_open("if_iwi" , sc->sc_fwname, &fwh); |
| 2186 | if (error != 0) { |
| 2187 | aprint_error_dev(sc->sc_dev, "firmware_open failed\n" ); |
| 2188 | goto fail1; |
| 2189 | } |
| 2190 | |
| 2191 | size = firmware_get_size(fwh); |
| 2192 | if (size < sizeof(struct iwi_firmware_hdr)) { |
| 2193 | aprint_error_dev(sc->sc_dev, "image '%s' has no header\n" , |
| 2194 | sc->sc_fwname); |
| 2195 | error = EIO; |
| 2196 | goto fail1; |
| 2197 | } |
| 2198 | sc->sc_blobsize = size; |
| 2199 | |
| 2200 | sc->sc_blob = firmware_malloc(size); |
| 2201 | if (sc->sc_blob == NULL) { |
| 2202 | error = ENOMEM; |
| 2203 | firmware_close(fwh); |
| 2204 | goto fail1; |
| 2205 | } |
| 2206 | |
| 2207 | error = firmware_read(fwh, 0, sc->sc_blob, size); |
| 2208 | firmware_close(fwh); |
| 2209 | if (error != 0) |
| 2210 | goto fail2; |
| 2211 | |
| 2212 | hdr = (struct iwi_firmware_hdr *)sc->sc_blob; |
| 2213 | hdr->version = le32toh(hdr->version); |
| 2214 | hdr->bsize = le32toh(hdr->bsize); |
| 2215 | hdr->usize = le32toh(hdr->usize); |
| 2216 | hdr->fsize = le32toh(hdr->fsize); |
| 2217 | |
| 2218 | if (size < sizeof(struct iwi_firmware_hdr) + hdr->bsize + hdr->usize + hdr->fsize) { |
| 2219 | aprint_error_dev(sc->sc_dev, "image '%s' too small\n" , |
| 2220 | sc->sc_fwname); |
| 2221 | error = EIO; |
| 2222 | goto fail2; |
| 2223 | } |
| 2224 | |
| 2225 | DPRINTF(("firmware version = %d\n" , hdr->version)); |
| 2226 | if ((IWI_FW_GET_MAJOR(hdr->version) != IWI_FW_REQ_MAJOR) || |
| 2227 | (IWI_FW_GET_MINOR(hdr->version) != IWI_FW_REQ_MINOR)) { |
| 2228 | aprint_error_dev(sc->sc_dev, |
| 2229 | "version for '%s' %d.%d != %d.%d\n" , sc->sc_fwname, |
| 2230 | IWI_FW_GET_MAJOR(hdr->version), |
| 2231 | IWI_FW_GET_MINOR(hdr->version), |
| 2232 | IWI_FW_REQ_MAJOR, IWI_FW_REQ_MINOR); |
| 2233 | error = EIO; |
| 2234 | goto fail2; |
| 2235 | } |
| 2236 | |
| 2237 | kfw->boot_size = hdr->bsize; |
| 2238 | kfw->ucode_size = hdr->usize; |
| 2239 | kfw->main_size = hdr->fsize; |
| 2240 | |
| 2241 | fw = sc->sc_blob + sizeof(struct iwi_firmware_hdr); |
| 2242 | kfw->boot = fw; |
| 2243 | fw += kfw->boot_size; |
| 2244 | kfw->ucode = fw; |
| 2245 | fw += kfw->ucode_size; |
| 2246 | kfw->main = fw; |
| 2247 | |
| 2248 | DPRINTF(("Firmware cached: boot %p, ucode %p, main %p\n" , |
| 2249 | kfw->boot, kfw->ucode, kfw->main)); |
| 2250 | DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n" , |
| 2251 | kfw->boot_size, kfw->ucode_size, kfw->main_size)); |
| 2252 | |
| 2253 | sc->flags |= IWI_FLAG_FW_CACHED; |
| 2254 | |
| 2255 | return 0; |
| 2256 | |
| 2257 | |
| 2258 | fail2: firmware_free(sc->sc_blob, sc->sc_blobsize); |
| 2259 | fail1: |
| 2260 | return error; |
| 2261 | } |
| 2262 | |
| 2263 | static void |
| 2264 | iwi_free_firmware(struct iwi_softc *sc) |
| 2265 | { |
| 2266 | |
| 2267 | if (!(sc->flags & IWI_FLAG_FW_CACHED)) |
| 2268 | return; |
| 2269 | |
| 2270 | firmware_free(sc->sc_blob, sc->sc_blobsize); |
| 2271 | |
| 2272 | sc->flags &= ~IWI_FLAG_FW_CACHED; |
| 2273 | } |
| 2274 | |
| 2275 | static int |
| 2276 | iwi_config(struct iwi_softc *sc) |
| 2277 | { |
| 2278 | struct ieee80211com *ic = &sc->sc_ic; |
| 2279 | struct ifnet *ifp = &sc->sc_if; |
| 2280 | struct iwi_configuration config; |
| 2281 | struct iwi_rateset rs; |
| 2282 | struct iwi_txpower power; |
| 2283 | struct ieee80211_key *wk; |
| 2284 | struct iwi_wep_key wepkey; |
| 2285 | uint32_t data; |
| 2286 | int error, nchan, i; |
| 2287 | |
| 2288 | IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); |
| 2289 | DPRINTF(("Setting MAC address to %s\n" , ether_sprintf(ic->ic_myaddr))); |
| 2290 | error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, |
| 2291 | IEEE80211_ADDR_LEN, 0); |
| 2292 | if (error != 0) |
| 2293 | return error; |
| 2294 | |
| 2295 | memset(&config, 0, sizeof config); |
| 2296 | config.bluetooth_coexistence = sc->bluetooth; |
| 2297 | config.antenna = sc->antenna; |
| 2298 | config.silence_threshold = 0x1e; |
| 2299 | config.multicast_enabled = 1; |
| 2300 | config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; |
| 2301 | config.disable_unicast_decryption = 1; |
| 2302 | config.disable_multicast_decryption = 1; |
| 2303 | DPRINTF(("Configuring adapter\n" )); |
| 2304 | error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, sizeof config, |
| 2305 | 0); |
| 2306 | if (error != 0) |
| 2307 | return error; |
| 2308 | |
| 2309 | data = htole32(IWI_POWER_MODE_CAM); |
| 2310 | DPRINTF(("Setting power mode to %u\n" , le32toh(data))); |
| 2311 | error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); |
| 2312 | if (error != 0) |
| 2313 | return error; |
| 2314 | |
| 2315 | data = htole32(ic->ic_rtsthreshold); |
| 2316 | DPRINTF(("Setting RTS threshold to %u\n" , le32toh(data))); |
| 2317 | error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); |
| 2318 | if (error != 0) |
| 2319 | return error; |
| 2320 | |
| 2321 | data = htole32(ic->ic_fragthreshold); |
| 2322 | DPRINTF(("Setting fragmentation threshold to %u\n" , le32toh(data))); |
| 2323 | error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); |
| 2324 | if (error != 0) |
| 2325 | return error; |
| 2326 | |
| 2327 | /* |
| 2328 | * Set default Tx power for 802.11b/g and 802.11a channels. |
| 2329 | */ |
| 2330 | nchan = 0; |
| 2331 | for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { |
| 2332 | if (!IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i])) |
| 2333 | continue; |
| 2334 | power.chan[nchan].chan = i; |
| 2335 | power.chan[nchan].power = IWI_TXPOWER_MAX; |
| 2336 | nchan++; |
| 2337 | } |
| 2338 | power.nchan = nchan; |
| 2339 | |
| 2340 | power.mode = IWI_MODE_11G; |
| 2341 | DPRINTF(("Setting .11g channels tx power\n" )); |
| 2342 | error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); |
| 2343 | if (error != 0) |
| 2344 | return error; |
| 2345 | |
| 2346 | power.mode = IWI_MODE_11B; |
| 2347 | DPRINTF(("Setting .11b channels tx power\n" )); |
| 2348 | error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 0); |
| 2349 | if (error != 0) |
| 2350 | return error; |
| 2351 | |
| 2352 | nchan = 0; |
| 2353 | for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { |
| 2354 | if (!IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i])) |
| 2355 | continue; |
| 2356 | power.chan[nchan].chan = i; |
| 2357 | power.chan[nchan].power = IWI_TXPOWER_MAX; |
| 2358 | nchan++; |
| 2359 | } |
| 2360 | power.nchan = nchan; |
| 2361 | |
| 2362 | if (nchan > 0) { /* 2915ABG only */ |
| 2363 | power.mode = IWI_MODE_11A; |
| 2364 | DPRINTF(("Setting .11a channels tx power\n" )); |
| 2365 | error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, |
| 2366 | 0); |
| 2367 | if (error != 0) |
| 2368 | return error; |
| 2369 | } |
| 2370 | |
| 2371 | rs.mode = IWI_MODE_11G; |
| 2372 | rs.type = IWI_RATESET_TYPE_SUPPORTED; |
| 2373 | rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; |
| 2374 | memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, |
| 2375 | rs.nrates); |
| 2376 | DPRINTF(("Setting .11bg supported rates (%u)\n" , rs.nrates)); |
| 2377 | error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); |
| 2378 | if (error != 0) |
| 2379 | return error; |
| 2380 | |
| 2381 | rs.mode = IWI_MODE_11A; |
| 2382 | rs.type = IWI_RATESET_TYPE_SUPPORTED; |
| 2383 | rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; |
| 2384 | memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, |
| 2385 | rs.nrates); |
| 2386 | DPRINTF(("Setting .11a supported rates (%u)\n" , rs.nrates)); |
| 2387 | error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); |
| 2388 | if (error != 0) |
| 2389 | return error; |
| 2390 | |
| 2391 | /* if we have a desired ESSID, set it now */ |
| 2392 | if (ic->ic_des_esslen != 0) { |
| 2393 | #ifdef IWI_DEBUG |
| 2394 | if (iwi_debug > 0) { |
| 2395 | printf("Setting desired ESSID to " ); |
| 2396 | ieee80211_print_essid(ic->ic_des_essid, |
| 2397 | ic->ic_des_esslen); |
| 2398 | printf("\n" ); |
| 2399 | } |
| 2400 | #endif |
| 2401 | error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ic->ic_des_essid, |
| 2402 | ic->ic_des_esslen, 0); |
| 2403 | if (error != 0) |
| 2404 | return error; |
| 2405 | } |
| 2406 | |
| 2407 | cprng_fast(&data, sizeof(data)); |
| 2408 | data = htole32(data); |
| 2409 | DPRINTF(("Setting initialization vector to %u\n" , le32toh(data))); |
| 2410 | error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); |
| 2411 | if (error != 0) |
| 2412 | return error; |
| 2413 | |
| 2414 | if (ic->ic_flags & IEEE80211_F_PRIVACY) { |
| 2415 | /* XXX iwi_setwepkeys? */ |
| 2416 | for (i = 0; i < IEEE80211_WEP_NKID; i++) { |
| 2417 | wk = &ic->ic_crypto.cs_nw_keys[i]; |
| 2418 | |
| 2419 | wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; |
| 2420 | wepkey.idx = i; |
| 2421 | wepkey.len = wk->wk_keylen; |
| 2422 | memset(wepkey.key, 0, sizeof wepkey.key); |
| 2423 | memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); |
| 2424 | DPRINTF(("Setting wep key index %u len %u\n" , |
| 2425 | wepkey.idx, wepkey.len)); |
| 2426 | error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, |
| 2427 | sizeof wepkey, 0); |
| 2428 | if (error != 0) |
| 2429 | return error; |
| 2430 | } |
| 2431 | } |
| 2432 | |
| 2433 | /* Enable adapter */ |
| 2434 | DPRINTF(("Enabling adapter\n" )); |
| 2435 | return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); |
| 2436 | } |
| 2437 | |
| 2438 | static int |
| 2439 | iwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) |
| 2440 | { |
| 2441 | struct ieee80211com *ic = &sc->sc_ic; |
| 2442 | struct iwi_scan_v2 scan; |
| 2443 | |
| 2444 | (void)memset(&scan, 0, sizeof scan); |
| 2445 | |
| 2446 | scan.dwelltime[IWI_SCAN_TYPE_PASSIVE] = htole16(2000); |
| 2447 | scan.channels[0] = 1 | |
| 2448 | (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : IWI_CHAN_2GHZ); |
| 2449 | scan.channels[1] = ieee80211_chan2ieee(ic, chan); |
| 2450 | iwi_scan_type_set(scan, 1, IWI_SCAN_TYPE_PASSIVE); |
| 2451 | |
| 2452 | DPRINTF(("Setting channel to %u\n" , ieee80211_chan2ieee(ic, chan))); |
| 2453 | return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); |
| 2454 | } |
| 2455 | |
| 2456 | static int |
| 2457 | iwi_scan(struct iwi_softc *sc) |
| 2458 | { |
| 2459 | struct ieee80211com *ic = &sc->sc_ic; |
| 2460 | struct iwi_scan_v2 scan; |
| 2461 | uint32_t type; |
| 2462 | uint8_t *p; |
| 2463 | int i, count, idx; |
| 2464 | |
| 2465 | (void)memset(&scan, 0, sizeof scan); |
| 2466 | scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BROADCAST] = |
| 2467 | htole16(sc->dwelltime); |
| 2468 | scan.dwelltime[IWI_SCAN_TYPE_ACTIVE_BDIRECT] = |
| 2469 | htole16(sc->dwelltime); |
| 2470 | |
| 2471 | /* tell the firmware about the desired essid */ |
| 2472 | if (ic->ic_des_esslen) { |
| 2473 | int error; |
| 2474 | |
| 2475 | DPRINTF(("%s: Setting adapter desired ESSID to %s\n" , |
| 2476 | __func__, ic->ic_des_essid)); |
| 2477 | |
| 2478 | error = iwi_cmd(sc, IWI_CMD_SET_ESSID, |
| 2479 | ic->ic_des_essid, ic->ic_des_esslen, 1); |
| 2480 | if (error) |
| 2481 | return error; |
| 2482 | |
| 2483 | type = IWI_SCAN_TYPE_ACTIVE_BDIRECT; |
| 2484 | } else { |
| 2485 | type = IWI_SCAN_TYPE_ACTIVE_BROADCAST; |
| 2486 | } |
| 2487 | |
| 2488 | p = &scan.channels[0]; |
| 2489 | count = idx = 0; |
| 2490 | for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { |
| 2491 | if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && |
| 2492 | isset(ic->ic_chan_active, i)) { |
| 2493 | *++p = i; |
| 2494 | count++; |
| 2495 | idx++; |
| 2496 | iwi_scan_type_set(scan, idx, type); |
| 2497 | } |
| 2498 | } |
| 2499 | if (count) { |
| 2500 | *(p - count) = IWI_CHAN_5GHZ | count; |
| 2501 | p++; |
| 2502 | } |
| 2503 | |
| 2504 | count = 0; |
| 2505 | for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { |
| 2506 | if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && |
| 2507 | isset(ic->ic_chan_active, i)) { |
| 2508 | *++p = i; |
| 2509 | count++; |
| 2510 | idx++; |
| 2511 | iwi_scan_type_set(scan, idx, type); |
| 2512 | } |
| 2513 | } |
| 2514 | *(p - count) = IWI_CHAN_2GHZ | count; |
| 2515 | |
| 2516 | DPRINTF(("Start scanning\n" )); |
| 2517 | return iwi_cmd(sc, IWI_CMD_SCAN_V2, &scan, sizeof scan, 1); |
| 2518 | } |
| 2519 | |
| 2520 | static int |
| 2521 | iwi_auth_and_assoc(struct iwi_softc *sc) |
| 2522 | { |
| 2523 | struct ieee80211com *ic = &sc->sc_ic; |
| 2524 | struct ieee80211_node *ni = ic->ic_bss; |
| 2525 | struct ifnet *ifp = &sc->sc_if; |
| 2526 | struct ieee80211_wme_info wme; |
| 2527 | struct iwi_configuration config; |
| 2528 | struct iwi_associate assoc; |
| 2529 | struct iwi_rateset rs; |
| 2530 | uint16_t capinfo; |
| 2531 | uint32_t data; |
| 2532 | int error; |
| 2533 | |
| 2534 | memset(&config, 0, sizeof config); |
| 2535 | config.bluetooth_coexistence = sc->bluetooth; |
| 2536 | config.antenna = sc->antenna; |
| 2537 | config.multicast_enabled = 1; |
| 2538 | config.silence_threshold = 0x1e; |
| 2539 | if (ic->ic_curmode == IEEE80211_MODE_11G) |
| 2540 | config.use_protection = 1; |
| 2541 | config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; |
| 2542 | config.disable_unicast_decryption = 1; |
| 2543 | config.disable_multicast_decryption = 1; |
| 2544 | |
| 2545 | DPRINTF(("Configuring adapter\n" )); |
| 2546 | error = iwi_cmd(sc, IWI_CMD_SET_CONFIGURATION, &config, |
| 2547 | sizeof config, 1); |
| 2548 | if (error != 0) |
| 2549 | return error; |
| 2550 | |
| 2551 | #ifdef IWI_DEBUG |
| 2552 | if (iwi_debug > 0) { |
| 2553 | aprint_debug_dev(sc->sc_dev, "Setting ESSID to " ); |
| 2554 | ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); |
| 2555 | aprint_debug("\n" ); |
| 2556 | } |
| 2557 | #endif |
| 2558 | error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); |
| 2559 | if (error != 0) |
| 2560 | return error; |
| 2561 | |
| 2562 | /* the rate set has already been "negotiated" */ |
| 2563 | rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : |
| 2564 | IWI_MODE_11G; |
| 2565 | rs.type = IWI_RATESET_TYPE_NEGOTIATED; |
| 2566 | rs.nrates = ni->ni_rates.rs_nrates; |
| 2567 | |
| 2568 | if (rs.nrates > IWI_RATESET_SIZE) { |
| 2569 | DPRINTF(("Truncating negotiated rate set from %u\n" , |
| 2570 | rs.nrates)); |
| 2571 | rs.nrates = IWI_RATESET_SIZE; |
| 2572 | } |
| 2573 | memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); |
| 2574 | DPRINTF(("Setting negotiated rates (%u)\n" , rs.nrates)); |
| 2575 | error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); |
| 2576 | if (error != 0) |
| 2577 | return error; |
| 2578 | |
| 2579 | if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { |
| 2580 | wme.wme_id = IEEE80211_ELEMID_VENDOR; |
| 2581 | wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; |
| 2582 | wme.wme_oui[0] = 0x00; |
| 2583 | wme.wme_oui[1] = 0x50; |
| 2584 | wme.wme_oui[2] = 0xf2; |
| 2585 | wme.wme_type = WME_OUI_TYPE; |
| 2586 | wme.wme_subtype = WME_INFO_OUI_SUBTYPE; |
| 2587 | wme.wme_version = WME_VERSION; |
| 2588 | wme.wme_info = 0; |
| 2589 | |
| 2590 | DPRINTF(("Setting WME IE (len=%u)\n" , wme.wme_len)); |
| 2591 | error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); |
| 2592 | if (error != 0) |
| 2593 | return error; |
| 2594 | } |
| 2595 | |
| 2596 | if (ic->ic_opt_ie != NULL) { |
| 2597 | DPRINTF(("Setting optional IE (len=%u)\n" , ic->ic_opt_ie_len)); |
| 2598 | error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, |
| 2599 | ic->ic_opt_ie_len, 1); |
| 2600 | if (error != 0) |
| 2601 | return error; |
| 2602 | } |
| 2603 | data = htole32(ni->ni_rssi); |
| 2604 | DPRINTF(("Setting sensitivity to %d\n" , (int8_t)ni->ni_rssi)); |
| 2605 | error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); |
| 2606 | if (error != 0) |
| 2607 | return error; |
| 2608 | |
| 2609 | memset(&assoc, 0, sizeof assoc); |
| 2610 | if (IEEE80211_IS_CHAN_A(ni->ni_chan)) |
| 2611 | assoc.mode = IWI_MODE_11A; |
| 2612 | else if (IEEE80211_IS_CHAN_G(ni->ni_chan)) |
| 2613 | assoc.mode = IWI_MODE_11G; |
| 2614 | else if (IEEE80211_IS_CHAN_B(ni->ni_chan)) |
| 2615 | assoc.mode = IWI_MODE_11B; |
| 2616 | |
| 2617 | assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); |
| 2618 | |
| 2619 | if (ni->ni_authmode == IEEE80211_AUTH_SHARED) |
| 2620 | assoc.auth = (ic->ic_crypto.cs_def_txkey << 4) | IWI_AUTH_SHARED; |
| 2621 | |
| 2622 | if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) |
| 2623 | assoc.plen = IWI_ASSOC_SHPREAMBLE; |
| 2624 | |
| 2625 | if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) |
| 2626 | assoc.policy |= htole16(IWI_POLICY_WME); |
| 2627 | if (ic->ic_flags & IEEE80211_F_WPA) |
| 2628 | assoc.policy |= htole16(IWI_POLICY_WPA); |
| 2629 | if (ic->ic_opmode == IEEE80211_M_IBSS && ni->ni_tstamp.tsf == 0) |
| 2630 | assoc.type = IWI_HC_IBSS_START; |
| 2631 | else |
| 2632 | assoc.type = IWI_HC_ASSOC; |
| 2633 | memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); |
| 2634 | |
| 2635 | if (ic->ic_opmode == IEEE80211_M_IBSS) |
| 2636 | capinfo = IEEE80211_CAPINFO_IBSS; |
| 2637 | else |
| 2638 | capinfo = IEEE80211_CAPINFO_ESS; |
| 2639 | if (ic->ic_flags & IEEE80211_F_PRIVACY) |
| 2640 | capinfo |= IEEE80211_CAPINFO_PRIVACY; |
| 2641 | if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && |
| 2642 | IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) |
| 2643 | capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; |
| 2644 | if (ic->ic_flags & IEEE80211_F_SHSLOT) |
| 2645 | capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; |
| 2646 | assoc.capinfo = htole16(capinfo); |
| 2647 | |
| 2648 | assoc.lintval = htole16(ic->ic_lintval); |
| 2649 | assoc.intval = htole16(ni->ni_intval); |
| 2650 | IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); |
| 2651 | if (ic->ic_opmode == IEEE80211_M_IBSS) |
| 2652 | IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); |
| 2653 | else |
| 2654 | IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); |
| 2655 | |
| 2656 | DPRINTF(("%s bssid %s dst %s channel %u policy 0x%x " |
| 2657 | "auth %u capinfo 0x%x lintval %u bintval %u\n" , |
| 2658 | assoc.type == IWI_HC_IBSS_START ? "Start" : "Join" , |
| 2659 | ether_sprintf(assoc.bssid), ether_sprintf(assoc.dst), |
| 2660 | assoc.chan, le16toh(assoc.policy), assoc.auth, |
| 2661 | le16toh(assoc.capinfo), le16toh(assoc.lintval), |
| 2662 | le16toh(assoc.intval))); |
| 2663 | |
| 2664 | return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); |
| 2665 | } |
| 2666 | |
| 2667 | static int |
| 2668 | iwi_init(struct ifnet *ifp) |
| 2669 | { |
| 2670 | struct iwi_softc *sc = ifp->if_softc; |
| 2671 | struct ieee80211com *ic = &sc->sc_ic; |
| 2672 | struct iwi_firmware *fw = &sc->fw; |
| 2673 | int i, error; |
| 2674 | |
| 2675 | /* exit immediately if firmware has not been ioctl'd */ |
| 2676 | if (!(sc->flags & IWI_FLAG_FW_CACHED)) { |
| 2677 | if ((error = iwi_cache_firmware(sc)) != 0) { |
| 2678 | aprint_error_dev(sc->sc_dev, |
| 2679 | "could not cache the firmware\n" ); |
| 2680 | goto fail; |
| 2681 | } |
| 2682 | } |
| 2683 | |
| 2684 | iwi_stop(ifp, 0); |
| 2685 | |
| 2686 | if ((error = iwi_reset(sc)) != 0) { |
| 2687 | aprint_error_dev(sc->sc_dev, "could not reset adapter\n" ); |
| 2688 | goto fail; |
| 2689 | } |
| 2690 | |
| 2691 | if ((error = iwi_load_firmware(sc, fw->boot, fw->boot_size)) != 0) { |
| 2692 | aprint_error_dev(sc->sc_dev, "could not load boot firmware\n" ); |
| 2693 | goto fail; |
| 2694 | } |
| 2695 | |
| 2696 | if ((error = iwi_load_ucode(sc, fw->ucode, fw->ucode_size)) != 0) { |
| 2697 | aprint_error_dev(sc->sc_dev, "could not load microcode\n" ); |
| 2698 | goto fail; |
| 2699 | } |
| 2700 | |
| 2701 | iwi_stop_master(sc); |
| 2702 | |
| 2703 | CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.desc_map->dm_segs[0].ds_addr); |
| 2704 | CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); |
| 2705 | CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); |
| 2706 | |
| 2707 | CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].desc_map->dm_segs[0].ds_addr); |
| 2708 | CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); |
| 2709 | CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); |
| 2710 | |
| 2711 | CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].desc_map->dm_segs[0].ds_addr); |
| 2712 | CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); |
| 2713 | CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); |
| 2714 | |
| 2715 | CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].desc_map->dm_segs[0].ds_addr); |
| 2716 | CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); |
| 2717 | CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); |
| 2718 | |
| 2719 | CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].desc_map->dm_segs[0].ds_addr); |
| 2720 | CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); |
| 2721 | CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); |
| 2722 | |
| 2723 | for (i = 0; i < sc->rxq.count; i++) |
| 2724 | CSR_WRITE_4(sc, IWI_CSR_RX_BASE + i * 4, |
| 2725 | sc->rxq.data[i].map->dm_segs[0].ds_addr); |
| 2726 | |
| 2727 | CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count -1); |
| 2728 | |
| 2729 | if ((error = iwi_load_firmware(sc, fw->main, fw->main_size)) != 0) { |
| 2730 | aprint_error_dev(sc->sc_dev, "could not load main firmware\n" ); |
| 2731 | goto fail; |
| 2732 | } |
| 2733 | |
| 2734 | sc->flags |= IWI_FLAG_FW_INITED; |
| 2735 | |
| 2736 | if ((error = iwi_config(sc)) != 0) { |
| 2737 | aprint_error_dev(sc->sc_dev, "device configuration failed\n" ); |
| 2738 | goto fail; |
| 2739 | } |
| 2740 | |
| 2741 | ic->ic_state = IEEE80211_S_INIT; |
| 2742 | |
| 2743 | ifp->if_flags &= ~IFF_OACTIVE; |
| 2744 | ifp->if_flags |= IFF_RUNNING; |
| 2745 | |
| 2746 | if (ic->ic_opmode != IEEE80211_M_MONITOR) { |
| 2747 | if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) |
| 2748 | ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); |
| 2749 | } else |
| 2750 | ieee80211_new_state(ic, IEEE80211_S_RUN, -1); |
| 2751 | |
| 2752 | return 0; |
| 2753 | |
| 2754 | fail: ifp->if_flags &= ~IFF_UP; |
| 2755 | iwi_stop(ifp, 0); |
| 2756 | |
| 2757 | return error; |
| 2758 | } |
| 2759 | |
| 2760 | |
| 2761 | /* |
| 2762 | * Return whether or not the radio is enabled in hardware |
| 2763 | * (i.e. the rfkill switch is "off"). |
| 2764 | */ |
| 2765 | static int |
| 2766 | iwi_getrfkill(struct iwi_softc *sc) |
| 2767 | { |
| 2768 | return (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) == 0; |
| 2769 | } |
| 2770 | |
| 2771 | static int |
| 2772 | iwi_sysctl_radio(SYSCTLFN_ARGS) |
| 2773 | { |
| 2774 | struct sysctlnode node; |
| 2775 | struct iwi_softc *sc; |
| 2776 | int val, error; |
| 2777 | |
| 2778 | node = *rnode; |
| 2779 | sc = (struct iwi_softc *)node.sysctl_data; |
| 2780 | |
| 2781 | val = !iwi_getrfkill(sc); |
| 2782 | |
| 2783 | node.sysctl_data = &val; |
| 2784 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
| 2785 | |
| 2786 | if (error || newp == NULL) |
| 2787 | return error; |
| 2788 | |
| 2789 | return 0; |
| 2790 | } |
| 2791 | |
| 2792 | #ifdef IWI_DEBUG |
| 2793 | SYSCTL_SETUP(sysctl_iwi, "sysctl iwi(4) subtree setup" ) |
| 2794 | { |
| 2795 | int rc; |
| 2796 | const struct sysctlnode *rnode; |
| 2797 | const struct sysctlnode *cnode; |
| 2798 | |
| 2799 | if ((rc = sysctl_createv(clog, 0, NULL, &rnode, |
| 2800 | CTLFLAG_PERMANENT, CTLTYPE_NODE, "iwi" , |
| 2801 | SYSCTL_DESCR("iwi global controls" ), |
| 2802 | NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) |
| 2803 | goto err; |
| 2804 | |
| 2805 | /* control debugging printfs */ |
| 2806 | if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, |
| 2807 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, |
| 2808 | "debug" , SYSCTL_DESCR("Enable debugging output" ), |
| 2809 | NULL, 0, &iwi_debug, 0, CTL_CREATE, CTL_EOL)) != 0) |
| 2810 | goto err; |
| 2811 | |
| 2812 | return; |
| 2813 | err: |
| 2814 | aprint_error("%s: sysctl_createv failed (rc = %d)\n" , __func__, rc); |
| 2815 | } |
| 2816 | |
| 2817 | #endif /* IWI_DEBUG */ |
| 2818 | |
| 2819 | /* |
| 2820 | * Add sysctl knobs. |
| 2821 | */ |
| 2822 | static void |
| 2823 | iwi_sysctlattach(struct iwi_softc *sc) |
| 2824 | { |
| 2825 | int rc; |
| 2826 | const struct sysctlnode *rnode; |
| 2827 | const struct sysctlnode *cnode; |
| 2828 | |
| 2829 | struct sysctllog **clog = &sc->sc_sysctllog; |
| 2830 | |
| 2831 | if ((rc = sysctl_createv(clog, 0, NULL, &rnode, |
| 2832 | CTLFLAG_PERMANENT, CTLTYPE_NODE, device_xname(sc->sc_dev), |
| 2833 | SYSCTL_DESCR("iwi controls and statistics" ), |
| 2834 | NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) |
| 2835 | goto err; |
| 2836 | |
| 2837 | if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, |
| 2838 | CTLFLAG_PERMANENT, CTLTYPE_INT, "radio" , |
| 2839 | SYSCTL_DESCR("radio transmitter switch state (0=off, 1=on)" ), |
| 2840 | iwi_sysctl_radio, 0, (void *)sc, 0, CTL_CREATE, CTL_EOL)) != 0) |
| 2841 | goto err; |
| 2842 | |
| 2843 | sc->dwelltime = 100; |
| 2844 | if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, |
| 2845 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, |
| 2846 | "dwell" , SYSCTL_DESCR("channel dwell time (ms) for AP/station scanning" ), |
| 2847 | NULL, 0, &sc->dwelltime, 0, CTL_CREATE, CTL_EOL)) != 0) |
| 2848 | goto err; |
| 2849 | |
| 2850 | sc->bluetooth = 0; |
| 2851 | if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, |
| 2852 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, |
| 2853 | "bluetooth" , SYSCTL_DESCR("bluetooth coexistence" ), |
| 2854 | NULL, 0, &sc->bluetooth, 0, CTL_CREATE, CTL_EOL)) != 0) |
| 2855 | goto err; |
| 2856 | |
| 2857 | sc->antenna = IWI_ANTENNA_AUTO; |
| 2858 | if ((rc = sysctl_createv(clog, 0, &rnode, &cnode, |
| 2859 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT, |
| 2860 | "antenna" , SYSCTL_DESCR("antenna (0=auto)" ), |
| 2861 | NULL, 0, &sc->antenna, 0, CTL_CREATE, CTL_EOL)) != 0) |
| 2862 | goto err; |
| 2863 | |
| 2864 | return; |
| 2865 | err: |
| 2866 | aprint_error("%s: sysctl_createv failed (rc = %d)\n" , __func__, rc); |
| 2867 | } |
| 2868 | |
| 2869 | static void |
| 2870 | iwi_stop(struct ifnet *ifp, int disable) |
| 2871 | { |
| 2872 | struct iwi_softc *sc = ifp->if_softc; |
| 2873 | struct ieee80211com *ic = &sc->sc_ic; |
| 2874 | |
| 2875 | IWI_LED_OFF(sc); |
| 2876 | |
| 2877 | iwi_stop_master(sc); |
| 2878 | CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SW_RESET); |
| 2879 | |
| 2880 | /* reset rings */ |
| 2881 | iwi_reset_cmd_ring(sc, &sc->cmdq); |
| 2882 | iwi_reset_tx_ring(sc, &sc->txq[0]); |
| 2883 | iwi_reset_tx_ring(sc, &sc->txq[1]); |
| 2884 | iwi_reset_tx_ring(sc, &sc->txq[2]); |
| 2885 | iwi_reset_tx_ring(sc, &sc->txq[3]); |
| 2886 | iwi_reset_rx_ring(sc, &sc->rxq); |
| 2887 | |
| 2888 | ifp->if_timer = 0; |
| 2889 | ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); |
| 2890 | |
| 2891 | ieee80211_new_state(ic, IEEE80211_S_INIT, -1); |
| 2892 | } |
| 2893 | |
| 2894 | static void |
| 2895 | iwi_led_set(struct iwi_softc *sc, uint32_t state, int toggle) |
| 2896 | { |
| 2897 | uint32_t val; |
| 2898 | |
| 2899 | val = MEM_READ_4(sc, IWI_MEM_EVENT_CTL); |
| 2900 | |
| 2901 | switch (sc->nictype) { |
| 2902 | case 1: |
| 2903 | /* special NIC type: reversed leds */ |
| 2904 | if (state == IWI_LED_ACTIVITY) { |
| 2905 | state &= ~IWI_LED_ACTIVITY; |
| 2906 | state |= IWI_LED_ASSOCIATED; |
| 2907 | } else if (state == IWI_LED_ASSOCIATED) { |
| 2908 | state &= ~IWI_LED_ASSOCIATED; |
| 2909 | state |= IWI_LED_ACTIVITY; |
| 2910 | } |
| 2911 | /* and ignore toggle effect */ |
| 2912 | val |= state; |
| 2913 | break; |
| 2914 | case 0: |
| 2915 | case 2: |
| 2916 | case 3: |
| 2917 | case 4: |
| 2918 | val = (toggle && (val & state)) ? val & ~state : val | state; |
| 2919 | break; |
| 2920 | default: |
| 2921 | aprint_normal_dev(sc->sc_dev, "unknown NIC type %d\n" , |
| 2922 | sc->nictype); |
| 2923 | return; |
| 2924 | break; |
| 2925 | } |
| 2926 | |
| 2927 | MEM_WRITE_4(sc, IWI_MEM_EVENT_CTL, val); |
| 2928 | |
| 2929 | return; |
| 2930 | } |
| 2931 | |
| 2932 | SYSCTL_SETUP(sysctl_hw_iwi_accept_eula_setup, "sysctl hw.iwi.accept_eula" ) |
| 2933 | { |
| 2934 | const struct sysctlnode *rnode; |
| 2935 | const struct sysctlnode *cnode; |
| 2936 | |
| 2937 | sysctl_createv(NULL, 0, NULL, &rnode, |
| 2938 | CTLFLAG_PERMANENT, |
| 2939 | CTLTYPE_NODE, "iwi" , |
| 2940 | NULL, |
| 2941 | NULL, 0, |
| 2942 | NULL, 0, |
| 2943 | CTL_HW, CTL_CREATE, CTL_EOL); |
| 2944 | |
| 2945 | sysctl_createv(NULL, 0, &rnode, &cnode, |
| 2946 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 2947 | CTLTYPE_INT, "accept_eula" , |
| 2948 | SYSCTL_DESCR("Accept Intel EULA and permit use of iwi(4) firmware" ), |
| 2949 | NULL, 0, |
| 2950 | &iwi_accept_eula, sizeof(iwi_accept_eula), |
| 2951 | CTL_CREATE, CTL_EOL); |
| 2952 | } |
| 2953 | |