| 1 | /* $NetBSD: if_athn_usb.c,v 1.13 2016/09/05 20:58:51 skrll Exp $ */ |
| 2 | /* $OpenBSD: if_athn_usb.c,v 1.12 2013/01/14 09:50:31 jsing Exp $ */ |
| 3 | |
| 4 | /*- |
| 5 | * Copyright (c) 2011 Damien Bergamini <damien.bergamini@free.fr> |
| 6 | * |
| 7 | * Permission to use, copy, modify, and distribute this software for any |
| 8 | * purpose with or without fee is hereby granted, provided that the above |
| 9 | * copyright notice and this permission notice appear in all copies. |
| 10 | * |
| 11 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 12 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 13 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 14 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 15 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 16 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 17 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 18 | */ |
| 19 | |
| 20 | /* |
| 21 | * USB front-end for Atheros AR9271 and AR7010 chipsets. |
| 22 | */ |
| 23 | |
| 24 | #include <sys/cdefs.h> |
| 25 | __KERNEL_RCSID(0, "$NetBSD: if_athn_usb.c,v 1.13 2016/09/05 20:58:51 skrll Exp $" ); |
| 26 | |
| 27 | #ifdef _KERNEL_OPT |
| 28 | #include "opt_inet.h" |
| 29 | #endif |
| 30 | |
| 31 | #include <sys/param.h> |
| 32 | #include <sys/callout.h> |
| 33 | #include <sys/conf.h> |
| 34 | #include <sys/device.h> |
| 35 | #include <sys/kernel.h> |
| 36 | #include <sys/mbuf.h> |
| 37 | #include <sys/module.h> |
| 38 | #include <sys/proc.h> |
| 39 | #include <sys/socket.h> |
| 40 | #include <sys/sockio.h> |
| 41 | #include <sys/systm.h> |
| 42 | #include <sys/kmem.h> |
| 43 | |
| 44 | #include <sys/bus.h> |
| 45 | #include <sys/endian.h> |
| 46 | #include <sys/intr.h> |
| 47 | |
| 48 | #include <net/bpf.h> |
| 49 | #include <net/if.h> |
| 50 | #include <net/if_arp.h> |
| 51 | #include <net/if_dl.h> |
| 52 | #include <net/if_ether.h> |
| 53 | #include <net/if_media.h> |
| 54 | #include <net/if_types.h> |
| 55 | |
| 56 | #include <netinet/if_inarp.h> |
| 57 | #include <netinet/in.h> |
| 58 | #include <netinet/in_systm.h> |
| 59 | #include <netinet/in_var.h> |
| 60 | #include <netinet/ip.h> |
| 61 | |
| 62 | #include <net80211/ieee80211_var.h> |
| 63 | #include <net80211/ieee80211_amrr.h> |
| 64 | #include <net80211/ieee80211_radiotap.h> |
| 65 | |
| 66 | #include <dev/firmload.h> |
| 67 | |
| 68 | #include <dev/usb/usb.h> |
| 69 | #include <dev/usb/usbdevs.h> |
| 70 | #include <dev/usb/usbdi.h> |
| 71 | #include <dev/usb/usbdi_util.h> |
| 72 | |
| 73 | #include <dev/ic/athnreg.h> |
| 74 | #include <dev/ic/athnvar.h> |
| 75 | #include <dev/ic/arn9285.h> |
| 76 | #include <dev/usb/if_athn_usb.h> |
| 77 | |
| 78 | #define ATHN_USB_SOFTC(sc) ((struct athn_usb_softc *)(sc)) |
| 79 | #define ATHN_USB_NODE(ni) ((struct athn_usb_node *)(ni)) |
| 80 | |
| 81 | #define IS_UP_AND_RUNNING(ifp) \ |
| 82 | (((ifp)->if_flags & IFF_UP) && ((ifp)->if_flags & IFF_RUNNING)) |
| 83 | |
| 84 | #define athn_usb_wmi_cmd(sc, cmd_id) \ |
| 85 | athn_usb_wmi_xcmd(sc, cmd_id, NULL, 0, NULL) |
| 86 | |
| 87 | Static int athn_usb_activate(device_t, enum devact); |
| 88 | Static int athn_usb_detach(device_t, int); |
| 89 | Static int athn_usb_match(device_t, cfdata_t, void *); |
| 90 | Static void athn_usb_attach(device_t, device_t, void *); |
| 91 | |
| 92 | CFATTACH_DECL_NEW(athn_usb, sizeof(struct athn_usb_softc), athn_usb_match, |
| 93 | athn_usb_attach, athn_usb_detach, athn_usb_activate); |
| 94 | |
| 95 | Static int athn_usb_alloc_rx_list(struct athn_usb_softc *); |
| 96 | Static int athn_usb_alloc_tx_cmd(struct athn_usb_softc *); |
| 97 | Static int athn_usb_alloc_tx_list(struct athn_usb_softc *); |
| 98 | Static void athn_usb_attachhook(device_t); |
| 99 | Static void athn_usb_bcneof(struct usbd_xfer *, void *, |
| 100 | usbd_status); |
| 101 | Static void athn_usb_abort_pipes(struct athn_usb_softc *); |
| 102 | Static void athn_usb_close_pipes(struct athn_usb_softc *); |
| 103 | Static int athn_usb_create_hw_node(struct athn_usb_softc *, |
| 104 | struct ar_htc_target_sta *); |
| 105 | Static int athn_usb_create_node(struct athn_usb_softc *, |
| 106 | struct ieee80211_node *); |
| 107 | Static void athn_usb_do_async(struct athn_usb_softc *, |
| 108 | void (*)(struct athn_usb_softc *, void *), void *, int); |
| 109 | Static void athn_usb_free_rx_list(struct athn_usb_softc *); |
| 110 | Static void athn_usb_free_tx_cmd(struct athn_usb_softc *); |
| 111 | Static void athn_usb_free_tx_list(struct athn_usb_softc *); |
| 112 | Static int athn_usb_htc_connect_svc(struct athn_usb_softc *, uint16_t, |
| 113 | uint8_t, uint8_t, uint8_t *); |
| 114 | Static int athn_usb_htc_msg(struct athn_usb_softc *, uint16_t, void *, |
| 115 | int); |
| 116 | Static int athn_usb_htc_setup(struct athn_usb_softc *); |
| 117 | Static int athn_usb_init(struct ifnet *); |
| 118 | Static void athn_usb_intr(struct usbd_xfer *, void *, |
| 119 | usbd_status); |
| 120 | Static int athn_usb_ioctl(struct ifnet *, u_long, void *); |
| 121 | Static int athn_usb_load_firmware(struct athn_usb_softc *); |
| 122 | Static const struct athn_usb_type * |
| 123 | athn_usb_lookup(int, int); |
| 124 | Static int athn_usb_media_change(struct ifnet *); |
| 125 | Static void athn_usb_newassoc(struct ieee80211_node *, int); |
| 126 | Static void athn_usb_newassoc_cb(struct athn_usb_softc *, void *); |
| 127 | Static int athn_usb_newstate(struct ieee80211com *, enum ieee80211_state, |
| 128 | int); |
| 129 | Static void athn_usb_newstate_cb(struct athn_usb_softc *, void *); |
| 130 | Static void athn_usb_node_cleanup(struct ieee80211_node *); |
| 131 | Static void athn_usb_node_cleanup_cb(struct athn_usb_softc *, void *); |
| 132 | Static int athn_usb_open_pipes(struct athn_usb_softc *); |
| 133 | Static uint32_t athn_usb_read(struct athn_softc *, uint32_t); |
| 134 | Static int athn_usb_remove_hw_node(struct athn_usb_softc *, uint8_t *); |
| 135 | Static void athn_usb_rx_enable(struct athn_softc *); |
| 136 | Static void athn_usb_rx_frame(struct athn_usb_softc *, struct mbuf *); |
| 137 | Static void athn_usb_rx_radiotap(struct athn_softc *, struct mbuf *, |
| 138 | struct ar_rx_status *); |
| 139 | Static void athn_usb_rx_wmi_ctrl(struct athn_usb_softc *, uint8_t *, size_t); |
| 140 | Static void athn_usb_rxeof(struct usbd_xfer *, void *, |
| 141 | usbd_status); |
| 142 | Static void athn_usb_start(struct ifnet *); |
| 143 | Static void athn_usb_stop(struct ifnet *); |
| 144 | Static void athn_usb_swba(struct athn_usb_softc *); |
| 145 | Static int athn_usb_switch_chan(struct athn_softc *, |
| 146 | struct ieee80211_channel *, struct ieee80211_channel *); |
| 147 | Static void athn_usb_task(void *); |
| 148 | Static int athn_usb_tx(struct athn_softc *, struct mbuf *, |
| 149 | struct ieee80211_node *, struct athn_usb_tx_data *); |
| 150 | Static void athn_usb_txeof(struct usbd_xfer *, void *, |
| 151 | usbd_status); |
| 152 | Static void athn_usb_updateslot(struct ifnet *); |
| 153 | Static void athn_usb_updateslot_cb(struct athn_usb_softc *, void *); |
| 154 | Static void athn_usb_wait_async(struct athn_usb_softc *); |
| 155 | Static void athn_usb_wait_cmd(struct athn_usb_softc *); |
| 156 | Static void athn_usb_wait_msg(struct athn_usb_softc *); |
| 157 | Static void athn_usb_wait_wmi(struct athn_usb_softc *); |
| 158 | Static void athn_usb_watchdog(struct ifnet *); |
| 159 | Static int athn_usb_wmi_xcmd(struct athn_usb_softc *, uint16_t, void *, |
| 160 | int, void *); |
| 161 | Static void athn_usb_wmieof(struct usbd_xfer *, void *, |
| 162 | usbd_status); |
| 163 | Static void athn_usb_write(struct athn_softc *, uint32_t, uint32_t); |
| 164 | Static void athn_usb_write_barrier(struct athn_softc *); |
| 165 | |
| 166 | /************************************************************************ |
| 167 | * unused/notyet declarations |
| 168 | */ |
| 169 | #ifdef unused |
| 170 | Static int athn_usb_read_rom(struct athn_softc *); |
| 171 | #endif /* unused */ |
| 172 | |
| 173 | #ifdef notyet_edca |
| 174 | Static void athn_usb_updateedca(struct ieee80211com *); |
| 175 | Static void athn_usb_updateedca_cb(struct athn_usb_softc *, void *); |
| 176 | #endif /* notyet_edca */ |
| 177 | |
| 178 | #ifdef notyet |
| 179 | Static int athn_usb_ampdu_tx_start(struct ieee80211com *, |
| 180 | struct ieee80211_node *, uint8_t); |
| 181 | Static void athn_usb_ampdu_tx_start_cb(struct athn_usb_softc *, void *); |
| 182 | Static void athn_usb_ampdu_tx_stop(struct ieee80211com *, |
| 183 | struct ieee80211_node *, uint8_t); |
| 184 | Static void athn_usb_ampdu_tx_stop_cb(struct athn_usb_softc *, void *); |
| 185 | Static void athn_usb_delete_key(struct ieee80211com *, |
| 186 | struct ieee80211_node *, struct ieee80211_key *); |
| 187 | Static void athn_usb_delete_key_cb(struct athn_usb_softc *, void *); |
| 188 | Static int athn_usb_set_key(struct ieee80211com *, |
| 189 | struct ieee80211_node *, struct ieee80211_key *); |
| 190 | Static void athn_usb_set_key_cb(struct athn_usb_softc *, void *); |
| 191 | #endif /* notyet */ |
| 192 | /************************************************************************/ |
| 193 | |
| 194 | struct athn_usb_type { |
| 195 | struct usb_devno devno; |
| 196 | u_int flags; |
| 197 | }; |
| 198 | |
| 199 | Static const struct athn_usb_type * |
| 200 | athn_usb_lookup(int vendor, int product) |
| 201 | { |
| 202 | static const struct athn_usb_type athn_usb_devs[] = { |
| 203 | #define _D(v,p,f) \ |
| 204 | {{ USB_VENDOR_##v, USB_PRODUCT_##p }, ATHN_USB_FLAG_##f } |
| 205 | |
| 206 | _D( ACCTON, ACCTON_AR9280, AR7010 ), |
| 207 | _D( ACTIONTEC, ACTIONTEC_AR9287, AR7010 ), |
| 208 | _D( ATHEROS2, ATHEROS2_AR9271_1, NONE ), |
| 209 | _D( ATHEROS2, ATHEROS2_AR9271_2, NONE ), |
| 210 | _D( ATHEROS2, ATHEROS2_AR9271_3, NONE ), |
| 211 | _D( ATHEROS2, ATHEROS2_AR9280, AR7010 ), |
| 212 | _D( ATHEROS2, ATHEROS2_AR9287, AR7010 ), |
| 213 | _D( AZUREWAVE, AZUREWAVE_AR9271_1, NONE ), |
| 214 | _D( AZUREWAVE, AZUREWAVE_AR9271_2, NONE ), |
| 215 | _D( AZUREWAVE, AZUREWAVE_AR9271_3, NONE ), |
| 216 | _D( AZUREWAVE, AZUREWAVE_AR9271_4, NONE ), |
| 217 | _D( AZUREWAVE, AZUREWAVE_AR9271_5, NONE ), |
| 218 | _D( AZUREWAVE, AZUREWAVE_AR9271_6, NONE ), |
| 219 | _D( DLINK2, DLINK2_AR9271, NONE ), |
| 220 | _D( LITEON, LITEON_AR9271, NONE ), |
| 221 | _D( NETGEAR, NETGEAR_WNA1100, NONE ), |
| 222 | _D( NETGEAR, NETGEAR_WNDA3200, AR7010 ), |
| 223 | _D( VIA, VIA_AR9271, NONE ) |
| 224 | #undef _D |
| 225 | }; |
| 226 | |
| 227 | return (const void *)usb_lookup(athn_usb_devs, vendor, product); |
| 228 | } |
| 229 | |
| 230 | Static int |
| 231 | athn_usb_match(device_t parent, cfdata_t match, void *aux) |
| 232 | { |
| 233 | struct usb_attach_arg *uaa = aux; |
| 234 | |
| 235 | return athn_usb_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ? |
| 236 | UMATCH_VENDOR_PRODUCT : UMATCH_NONE; |
| 237 | } |
| 238 | |
| 239 | Static void |
| 240 | athn_usb_attach(device_t parent, device_t self, void *aux) |
| 241 | { |
| 242 | struct athn_usb_softc *usc; |
| 243 | struct athn_softc *sc; |
| 244 | struct usb_attach_arg *uaa; |
| 245 | int error; |
| 246 | |
| 247 | usc = device_private(self); |
| 248 | sc = &usc->usc_sc; |
| 249 | uaa = aux; |
| 250 | sc->sc_dev = self; |
| 251 | usc->usc_udev = uaa->uaa_device; |
| 252 | |
| 253 | aprint_naive("\n" ); |
| 254 | aprint_normal("\n" ); |
| 255 | |
| 256 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 257 | |
| 258 | usc->usc_athn_attached = 0; |
| 259 | usc->usc_flags = athn_usb_lookup(uaa->uaa_vendor, uaa->uaa_product)->flags; |
| 260 | sc->sc_flags |= ATHN_FLAG_USB; |
| 261 | #ifdef notyet |
| 262 | /* Check if it is a combo WiFi+Bluetooth (WB193) device. */ |
| 263 | if (strncmp(product, "wb193" , 5) == 0) |
| 264 | sc->sc_flags |= ATHN_FLAG_BTCOEX3WIRE; |
| 265 | #endif |
| 266 | |
| 267 | sc->sc_ops.read = athn_usb_read; |
| 268 | sc->sc_ops.write = athn_usb_write; |
| 269 | sc->sc_ops.write_barrier = athn_usb_write_barrier; |
| 270 | |
| 271 | cv_init(&usc->usc_task_cv, "athntsk" ); |
| 272 | mutex_init(&usc->usc_task_mtx, MUTEX_DEFAULT, IPL_NET); |
| 273 | mutex_init(&usc->usc_tx_mtx, MUTEX_DEFAULT, IPL_NONE); |
| 274 | |
| 275 | usb_init_task(&usc->usc_task, athn_usb_task, usc, 0); |
| 276 | |
| 277 | if (usbd_set_config_no(usc->usc_udev, 1, 0) != 0) { |
| 278 | aprint_error_dev(sc->sc_dev, |
| 279 | "could not set configuration no\n" ); |
| 280 | goto fail; |
| 281 | } |
| 282 | |
| 283 | /* Get the first interface handle. */ |
| 284 | error = usbd_device2interface_handle(usc->usc_udev, 0, &usc->usc_iface); |
| 285 | if (error != 0) { |
| 286 | aprint_error_dev(sc->sc_dev, |
| 287 | "could not get interface handle\n" ); |
| 288 | goto fail; |
| 289 | } |
| 290 | |
| 291 | if (athn_usb_open_pipes(usc) != 0) |
| 292 | goto fail; |
| 293 | |
| 294 | /* Allocate xfer for firmware commands. */ |
| 295 | if (athn_usb_alloc_tx_cmd(usc) != 0) |
| 296 | goto fail; |
| 297 | |
| 298 | /* Allocate Tx/Rx buffers. */ |
| 299 | error = athn_usb_alloc_rx_list(usc); |
| 300 | if (error != 0) |
| 301 | goto fail; |
| 302 | error = athn_usb_alloc_tx_list(usc); |
| 303 | if (error != 0) |
| 304 | goto fail; |
| 305 | |
| 306 | config_mountroot(self, athn_usb_attachhook); |
| 307 | |
| 308 | usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, usc->usc_udev, sc->sc_dev); |
| 309 | return; |
| 310 | |
| 311 | fail: |
| 312 | /* Free Tx/Rx buffers. */ |
| 313 | athn_usb_abort_pipes(usc); |
| 314 | athn_usb_free_tx_list(usc); |
| 315 | athn_usb_free_rx_list(usc); |
| 316 | athn_usb_free_tx_cmd(usc); |
| 317 | athn_usb_close_pipes(usc); |
| 318 | usb_rem_task(usc->usc_udev, &usc->usc_task); |
| 319 | mutex_destroy(&usc->usc_tx_mtx); |
| 320 | mutex_destroy(&usc->usc_task_mtx); |
| 321 | } |
| 322 | |
| 323 | Static void |
| 324 | athn_usb_node_cleanup_cb(struct athn_usb_softc *usc, void *arg) |
| 325 | { |
| 326 | uint8_t sta_index = *(uint8_t *)arg; |
| 327 | |
| 328 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 329 | DPRINTFN(DBG_NODES, usc, "removing node %u\n" , sta_index); |
| 330 | athn_usb_remove_hw_node(usc, &sta_index); |
| 331 | } |
| 332 | |
| 333 | Static void |
| 334 | athn_usb_node_cleanup(struct ieee80211_node *ni) |
| 335 | { |
| 336 | struct athn_usb_softc *usc; |
| 337 | struct ieee80211com *ic; |
| 338 | uint8_t sta_index; |
| 339 | |
| 340 | usc = ATHN_USB_SOFTC(ni->ni_ic->ic_ifp->if_softc); |
| 341 | ic = &ATHN_SOFTC(usc)->sc_ic; |
| 342 | |
| 343 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 344 | |
| 345 | if (ic->ic_opmode == IEEE80211_M_HOSTAP) { |
| 346 | sta_index = ATHN_NODE(ni)->sta_index; |
| 347 | if (sta_index != 0) |
| 348 | athn_usb_do_async(usc, athn_usb_node_cleanup_cb, |
| 349 | &sta_index, sizeof(sta_index)); |
| 350 | } |
| 351 | usc->usc_node_cleanup(ni); |
| 352 | } |
| 353 | |
| 354 | Static void |
| 355 | athn_usb_attachhook(device_t arg) |
| 356 | { |
| 357 | struct athn_usb_softc *usc = device_private(arg); |
| 358 | struct athn_softc *sc = &usc->usc_sc; |
| 359 | struct athn_ops *ops = &sc->sc_ops; |
| 360 | struct ieee80211com *ic = &sc->sc_ic; |
| 361 | struct ifnet *ifp = &sc->sc_if; |
| 362 | size_t i; |
| 363 | int s, error; |
| 364 | |
| 365 | if (usc->usc_dying) |
| 366 | return; |
| 367 | |
| 368 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 369 | |
| 370 | /* Load firmware. */ |
| 371 | error = athn_usb_load_firmware(usc); |
| 372 | if (error != 0) { |
| 373 | aprint_error_dev(sc->sc_dev, |
| 374 | "could not load firmware (%d)\n" , error); |
| 375 | return; |
| 376 | } |
| 377 | |
| 378 | /* Setup the host transport communication interface. */ |
| 379 | error = athn_usb_htc_setup(usc); |
| 380 | if (error != 0) |
| 381 | return; |
| 382 | |
| 383 | /* We're now ready to attach the bus agnostic driver. */ |
| 384 | s = splnet(); |
| 385 | ic->ic_ifp = ifp; |
| 386 | ic->ic_updateslot = athn_usb_updateslot; |
| 387 | sc->sc_max_aid = AR_USB_MAX_STA; /* Firmware is limited to 8 STA */ |
| 388 | sc->sc_media_change = athn_usb_media_change; |
| 389 | error = athn_attach(sc); |
| 390 | if (error != 0) { |
| 391 | splx(s); |
| 392 | return; |
| 393 | } |
| 394 | usc->usc_athn_attached = 1; |
| 395 | |
| 396 | /* Override some operations for USB. */ |
| 397 | ifp->if_init = athn_usb_init; |
| 398 | ifp->if_ioctl = athn_usb_ioctl; |
| 399 | ifp->if_start = athn_usb_start; |
| 400 | ifp->if_watchdog = athn_usb_watchdog; |
| 401 | |
| 402 | /* hooks for HostAP association and disassociation */ |
| 403 | ic->ic_newassoc = athn_usb_newassoc; |
| 404 | usc->usc_node_cleanup = ic->ic_node_cleanup; |
| 405 | ic->ic_node_cleanup = athn_usb_node_cleanup; |
| 406 | |
| 407 | #ifdef notyet_edca |
| 408 | ic->ic_updateedca = athn_usb_updateedca; |
| 409 | #endif |
| 410 | #ifdef notyet |
| 411 | ic->ic_set_key = athn_usb_set_key; |
| 412 | ic->ic_delete_key = athn_usb_delete_key; |
| 413 | ic->ic_ampdu_tx_start = athn_usb_ampdu_tx_start; |
| 414 | ic->ic_ampdu_tx_stop = athn_usb_ampdu_tx_stop; |
| 415 | #endif |
| 416 | ic->ic_newstate = athn_usb_newstate; |
| 417 | |
| 418 | ops->rx_enable = athn_usb_rx_enable; |
| 419 | splx(s); |
| 420 | |
| 421 | /* Reset HW key cache entries. */ |
| 422 | for (i = 0; i < sc->sc_kc_entries; i++) |
| 423 | athn_reset_key(sc, i); |
| 424 | |
| 425 | ops->enable_antenna_diversity(sc); |
| 426 | |
| 427 | #ifdef ATHN_BT_COEXISTENCE |
| 428 | /* Configure bluetooth coexistence for combo chips. */ |
| 429 | if (sc->sc_flags & ATHN_FLAG_BTCOEX) |
| 430 | athn_btcoex_init(sc); |
| 431 | #endif |
| 432 | /* Configure LED. */ |
| 433 | athn_led_init(sc); |
| 434 | |
| 435 | ieee80211_announce(ic); |
| 436 | } |
| 437 | |
| 438 | Static int |
| 439 | athn_usb_detach(device_t self, int flags) |
| 440 | { |
| 441 | struct athn_usb_softc *usc = device_private(self); |
| 442 | struct athn_softc *sc = &usc->usc_sc; |
| 443 | int s; |
| 444 | |
| 445 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 446 | |
| 447 | s = splusb(); |
| 448 | usc->usc_dying = 1; |
| 449 | |
| 450 | athn_usb_wait_wmi(usc); |
| 451 | athn_usb_wait_cmd(usc); |
| 452 | athn_usb_wait_msg(usc); |
| 453 | athn_usb_wait_async(usc); |
| 454 | |
| 455 | usb_rem_task(usc->usc_udev, &usc->usc_task); |
| 456 | |
| 457 | if (usc->usc_athn_attached) { |
| 458 | usc->usc_athn_attached = 0; |
| 459 | athn_detach(sc); |
| 460 | } |
| 461 | /* Abort Tx/Rx pipes. */ |
| 462 | athn_usb_abort_pipes(usc); |
| 463 | splx(s); |
| 464 | |
| 465 | /* Free Tx/Rx buffers. */ |
| 466 | athn_usb_free_rx_list(usc); |
| 467 | athn_usb_free_tx_list(usc); |
| 468 | athn_usb_free_tx_cmd(usc); |
| 469 | |
| 470 | /* Close Tx/Rx pipes. */ |
| 471 | athn_usb_close_pipes(usc); |
| 472 | |
| 473 | mutex_destroy(&usc->usc_tx_mtx); |
| 474 | mutex_destroy(&usc->usc_task_mtx); |
| 475 | cv_destroy(&usc->usc_task_cv); |
| 476 | |
| 477 | usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, usc->usc_udev, sc->sc_dev); |
| 478 | return 0; |
| 479 | } |
| 480 | |
| 481 | Static int |
| 482 | athn_usb_activate(device_t self, enum devact act) |
| 483 | { |
| 484 | struct athn_usb_softc *usc = device_private(self); |
| 485 | struct athn_softc *sc = &usc->usc_sc; |
| 486 | |
| 487 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 488 | |
| 489 | switch (act) { |
| 490 | case DVACT_DEACTIVATE: |
| 491 | if_deactivate(sc->sc_ic.ic_ifp); |
| 492 | usc->usc_dying = 1; |
| 493 | return 0; |
| 494 | default: |
| 495 | return EOPNOTSUPP; |
| 496 | } |
| 497 | } |
| 498 | |
| 499 | Static int |
| 500 | athn_usb_open_pipes(struct athn_usb_softc *usc) |
| 501 | { |
| 502 | usb_endpoint_descriptor_t *ed; |
| 503 | int error; |
| 504 | |
| 505 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 506 | |
| 507 | error = usbd_open_pipe(usc->usc_iface, AR_PIPE_TX_DATA, 0, |
| 508 | &usc->usc_tx_data_pipe); |
| 509 | if (error != 0) { |
| 510 | aprint_error_dev(usc->usc_dev, |
| 511 | "could not open Tx bulk pipe\n" ); |
| 512 | goto fail; |
| 513 | } |
| 514 | |
| 515 | error = usbd_open_pipe(usc->usc_iface, AR_PIPE_RX_DATA, 0, |
| 516 | &usc->usc_rx_data_pipe); |
| 517 | if (error != 0) { |
| 518 | aprint_error_dev(usc->usc_dev, |
| 519 | "could not open Rx bulk pipe\n" ); |
| 520 | goto fail; |
| 521 | } |
| 522 | |
| 523 | ed = usbd_get_endpoint_descriptor(usc->usc_iface, AR_PIPE_RX_INTR); |
| 524 | if (ed == NULL) { |
| 525 | aprint_error_dev(usc->usc_dev, |
| 526 | "could not retrieve Rx intr pipe descriptor\n" ); |
| 527 | goto fail; |
| 528 | } |
| 529 | usc->usc_ibufsize = UGETW(ed->wMaxPacketSize); |
| 530 | if (usc->usc_ibufsize == 0) { |
| 531 | aprint_error_dev(usc->usc_dev, |
| 532 | "invalid Rx intr pipe descriptor\n" ); |
| 533 | goto fail; |
| 534 | } |
| 535 | usc->usc_ibuf = kmem_alloc(usc->usc_ibufsize, KM_SLEEP); |
| 536 | if (usc->usc_ibuf == NULL) { |
| 537 | aprint_error_dev(usc->usc_dev, |
| 538 | "could not allocate Rx intr buffer\n" ); |
| 539 | goto fail; |
| 540 | } |
| 541 | |
| 542 | error = usbd_open_pipe_intr(usc->usc_iface, AR_PIPE_RX_INTR, |
| 543 | USBD_SHORT_XFER_OK, &usc->usc_rx_intr_pipe, usc, usc->usc_ibuf, |
| 544 | usc->usc_ibufsize, athn_usb_intr, USBD_DEFAULT_INTERVAL); |
| 545 | if (error != 0) { |
| 546 | aprint_error_dev(usc->usc_dev, |
| 547 | "could not open Rx intr pipe\n" ); |
| 548 | goto fail; |
| 549 | } |
| 550 | error = usbd_open_pipe(usc->usc_iface, AR_PIPE_TX_INTR, 0, |
| 551 | &usc->usc_tx_intr_pipe); |
| 552 | if (error != 0) { |
| 553 | aprint_error_dev(usc->usc_dev, |
| 554 | "could not open Tx intr pipe\n" ); |
| 555 | goto fail; |
| 556 | } |
| 557 | return 0; |
| 558 | fail: |
| 559 | athn_usb_abort_pipes(usc); |
| 560 | athn_usb_close_pipes(usc); |
| 561 | return error; |
| 562 | } |
| 563 | |
| 564 | static inline void |
| 565 | athn_usb_kill_pipe(struct usbd_pipe **pipeptr) |
| 566 | { |
| 567 | struct usbd_pipe *pipe; |
| 568 | |
| 569 | CTASSERT(sizeof(pipe) == sizeof(void *)); |
| 570 | pipe = atomic_swap_ptr(pipeptr, NULL); |
| 571 | if (pipe != NULL) { |
| 572 | usbd_close_pipe(pipe); |
| 573 | } |
| 574 | } |
| 575 | |
| 576 | Static void |
| 577 | athn_usb_abort_pipes(struct athn_usb_softc *usc) |
| 578 | { |
| 579 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 580 | |
| 581 | if (usc->usc_tx_data_pipe != NULL) |
| 582 | usbd_abort_pipe(usc->usc_tx_data_pipe); |
| 583 | if (usc->usc_rx_data_pipe != NULL) |
| 584 | usbd_abort_pipe(usc->usc_rx_data_pipe); |
| 585 | if (usc->usc_tx_intr_pipe != NULL) |
| 586 | usbd_abort_pipe(usc->usc_tx_intr_pipe); |
| 587 | if (usc->usc_rx_intr_pipe != NULL) |
| 588 | usbd_abort_pipe(usc->usc_rx_intr_pipe); |
| 589 | } |
| 590 | |
| 591 | Static void |
| 592 | athn_usb_close_pipes(struct athn_usb_softc *usc) |
| 593 | { |
| 594 | uint8_t *ibuf; |
| 595 | |
| 596 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 597 | |
| 598 | athn_usb_kill_pipe(&usc->usc_tx_data_pipe); |
| 599 | athn_usb_kill_pipe(&usc->usc_rx_data_pipe); |
| 600 | athn_usb_kill_pipe(&usc->usc_tx_intr_pipe); |
| 601 | athn_usb_kill_pipe(&usc->usc_rx_intr_pipe); |
| 602 | ibuf = atomic_swap_ptr(&usc->usc_ibuf, NULL); |
| 603 | if (ibuf != NULL) |
| 604 | kmem_free(ibuf, usc->usc_ibufsize); |
| 605 | } |
| 606 | |
| 607 | Static int |
| 608 | athn_usb_alloc_rx_list(struct athn_usb_softc *usc) |
| 609 | { |
| 610 | struct athn_usb_rx_data *data; |
| 611 | size_t i; |
| 612 | int error = 0; |
| 613 | |
| 614 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 615 | |
| 616 | for (i = 0; i < ATHN_USB_RX_LIST_COUNT; i++) { |
| 617 | data = &usc->usc_rx_data[i]; |
| 618 | |
| 619 | data->sc = usc; /* Backpointer for callbacks. */ |
| 620 | |
| 621 | error = usbd_create_xfer(usc->usc_rx_data_pipe, |
| 622 | ATHN_USB_RXBUFSZ, USBD_SHORT_XFER_OK, 0, &data->xfer); |
| 623 | if (error) { |
| 624 | aprint_error_dev(usc->usc_dev, |
| 625 | "could not allocate xfer\n" ); |
| 626 | break; |
| 627 | } |
| 628 | data->buf = usbd_get_buffer(data->xfer); |
| 629 | } |
| 630 | if (error != 0) |
| 631 | athn_usb_free_rx_list(usc); |
| 632 | return error; |
| 633 | } |
| 634 | |
| 635 | Static void |
| 636 | athn_usb_free_rx_list(struct athn_usb_softc *usc) |
| 637 | { |
| 638 | struct usbd_xfer *xfer; |
| 639 | size_t i; |
| 640 | |
| 641 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 642 | |
| 643 | /* NB: Caller must abort pipe first. */ |
| 644 | for (i = 0; i < ATHN_USB_RX_LIST_COUNT; i++) { |
| 645 | CTASSERT(sizeof(xfer) == sizeof(void *)); |
| 646 | xfer = atomic_swap_ptr(&usc->usc_rx_data[i].xfer, NULL); |
| 647 | if (xfer != NULL) |
| 648 | usbd_destroy_xfer(xfer); |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | Static int |
| 653 | athn_usb_alloc_tx_list(struct athn_usb_softc *usc) |
| 654 | { |
| 655 | struct athn_usb_tx_data *data; |
| 656 | size_t i; |
| 657 | int error = 0; |
| 658 | |
| 659 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 660 | |
| 661 | mutex_enter(&usc->usc_tx_mtx); |
| 662 | TAILQ_INIT(&usc->usc_tx_free_list); |
| 663 | for (i = 0; i < ATHN_USB_TX_LIST_COUNT; i++) { |
| 664 | data = &usc->usc_tx_data[i]; |
| 665 | |
| 666 | data->sc = usc; /* Backpointer for callbacks. */ |
| 667 | |
| 668 | error = usbd_create_xfer(usc->usc_tx_data_pipe, |
| 669 | ATHN_USB_TXBUFSZ, USBD_SHORT_XFER_OK, 0, &data->xfer); |
| 670 | if (error) { |
| 671 | aprint_error_dev(usc->usc_dev, |
| 672 | "could not create xfer on TX pipe\n" ); |
| 673 | break; |
| 674 | } |
| 675 | data->buf = usbd_get_buffer(data->xfer); |
| 676 | |
| 677 | /* Append this Tx buffer to our free list. */ |
| 678 | TAILQ_INSERT_TAIL(&usc->usc_tx_free_list, data, next); |
| 679 | } |
| 680 | if (error != 0) |
| 681 | athn_usb_free_tx_list(usc); |
| 682 | mutex_exit(&usc->usc_tx_mtx); |
| 683 | return error; |
| 684 | } |
| 685 | |
| 686 | Static void |
| 687 | athn_usb_free_tx_list(struct athn_usb_softc *usc) |
| 688 | { |
| 689 | struct usbd_xfer *xfer; |
| 690 | size_t i; |
| 691 | |
| 692 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 693 | |
| 694 | /* NB: Caller must abort pipe first. */ |
| 695 | for (i = 0; i < ATHN_USB_TX_LIST_COUNT; i++) { |
| 696 | CTASSERT(sizeof(xfer) == sizeof(void *)); |
| 697 | xfer = atomic_swap_ptr(&usc->usc_tx_data[i].xfer, NULL); |
| 698 | if (xfer != NULL) |
| 699 | usbd_destroy_xfer(xfer); |
| 700 | } |
| 701 | } |
| 702 | |
| 703 | Static int |
| 704 | athn_usb_alloc_tx_cmd(struct athn_usb_softc *usc) |
| 705 | { |
| 706 | struct athn_usb_tx_data *data = &usc->usc_tx_cmd; |
| 707 | |
| 708 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 709 | |
| 710 | data->sc = usc; /* Backpointer for callbacks. */ |
| 711 | |
| 712 | int err = usbd_create_xfer(usc->usc_tx_intr_pipe, ATHN_USB_TXCMDSZ, |
| 713 | 0, 0, &data->xfer); |
| 714 | if (err) { |
| 715 | aprint_error_dev(usc->usc_dev, |
| 716 | "could not allocate command xfer\n" ); |
| 717 | return err; |
| 718 | } |
| 719 | data->buf = usbd_get_buffer(data->xfer); |
| 720 | |
| 721 | return 0; |
| 722 | } |
| 723 | |
| 724 | Static void |
| 725 | athn_usb_free_tx_cmd(struct athn_usb_softc *usc) |
| 726 | { |
| 727 | struct usbd_xfer *xfer; |
| 728 | |
| 729 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 730 | |
| 731 | CTASSERT(sizeof(xfer) == sizeof(void *)); |
| 732 | xfer = atomic_swap_ptr(&usc->usc_tx_cmd.xfer, NULL); |
| 733 | if (xfer != NULL) |
| 734 | usbd_destroy_xfer(xfer); |
| 735 | } |
| 736 | |
| 737 | Static void |
| 738 | athn_usb_task(void *arg) |
| 739 | { |
| 740 | struct athn_usb_softc *usc = arg; |
| 741 | struct athn_usb_host_cmd_ring *ring = &usc->usc_cmdq; |
| 742 | struct athn_usb_host_cmd *cmd; |
| 743 | int s; |
| 744 | |
| 745 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 746 | |
| 747 | /* Process host commands. */ |
| 748 | s = splusb(); |
| 749 | mutex_spin_enter(&usc->usc_task_mtx); |
| 750 | while (ring->next != ring->cur) { |
| 751 | cmd = &ring->cmd[ring->next]; |
| 752 | mutex_spin_exit(&usc->usc_task_mtx); |
| 753 | splx(s); |
| 754 | |
| 755 | /* Invoke callback. */ |
| 756 | if (!usc->usc_dying) |
| 757 | cmd->cb(usc, cmd->data); |
| 758 | |
| 759 | s = splusb(); |
| 760 | mutex_spin_enter(&usc->usc_task_mtx); |
| 761 | ring->queued--; |
| 762 | ring->next = (ring->next + 1) % ATHN_USB_HOST_CMD_RING_COUNT; |
| 763 | } |
| 764 | mutex_spin_exit(&usc->usc_task_mtx); |
| 765 | wakeup(ring); |
| 766 | splx(s); |
| 767 | } |
| 768 | |
| 769 | Static void |
| 770 | athn_usb_do_async(struct athn_usb_softc *usc, |
| 771 | void (*cb)(struct athn_usb_softc *, void *), void *arg, int len) |
| 772 | { |
| 773 | struct athn_usb_host_cmd_ring *ring = &usc->usc_cmdq; |
| 774 | struct athn_usb_host_cmd *cmd; |
| 775 | int s; |
| 776 | |
| 777 | if (usc->usc_dying) |
| 778 | return; |
| 779 | |
| 780 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 781 | |
| 782 | s = splusb(); |
| 783 | mutex_spin_enter(&usc->usc_task_mtx); |
| 784 | cmd = &ring->cmd[ring->cur]; |
| 785 | cmd->cb = cb; |
| 786 | KASSERT(len <= sizeof(cmd->data)); |
| 787 | memcpy(cmd->data, arg, len); |
| 788 | ring->cur = (ring->cur + 1) % ATHN_USB_HOST_CMD_RING_COUNT; |
| 789 | |
| 790 | /* If there is no pending command already, schedule a task. */ |
| 791 | if (++ring->queued == 1) { |
| 792 | mutex_spin_exit(&usc->usc_task_mtx); |
| 793 | usb_add_task(usc->usc_udev, &usc->usc_task, USB_TASKQ_DRIVER); |
| 794 | } |
| 795 | else |
| 796 | mutex_spin_exit(&usc->usc_task_mtx); |
| 797 | splx(s); |
| 798 | } |
| 799 | |
| 800 | Static void |
| 801 | athn_usb_wait_async(struct athn_usb_softc *usc) |
| 802 | { |
| 803 | |
| 804 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 805 | |
| 806 | /* Wait for all queued asynchronous commands to complete. */ |
| 807 | mutex_spin_enter(&usc->usc_task_mtx); |
| 808 | while (usc->usc_cmdq.queued > 0) |
| 809 | cv_wait(&usc->usc_task_cv, &usc->usc_task_mtx); |
| 810 | mutex_spin_exit(&usc->usc_task_mtx); |
| 811 | } |
| 812 | |
| 813 | Static int |
| 814 | athn_usb_load_firmware(struct athn_usb_softc *usc) |
| 815 | { |
| 816 | struct athn_softc *sc = &usc->usc_sc; |
| 817 | firmware_handle_t fwh; |
| 818 | usb_device_descriptor_t *dd; |
| 819 | usb_device_request_t req; |
| 820 | const char *name; |
| 821 | u_char *fw, *ptr; |
| 822 | size_t size, remain; |
| 823 | uint32_t addr; |
| 824 | int s, mlen, error; |
| 825 | |
| 826 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 827 | |
| 828 | /* Determine which firmware image to load. */ |
| 829 | if (usc->usc_flags & ATHN_USB_FLAG_AR7010) { |
| 830 | dd = usbd_get_device_descriptor(usc->usc_udev); |
| 831 | if (UGETW(dd->bcdDevice) == 0x0202) |
| 832 | name = "athn-ar7010-11" ; |
| 833 | else |
| 834 | name = "athn-ar7010" ; |
| 835 | } |
| 836 | else |
| 837 | name = "athn-ar9271" ; |
| 838 | |
| 839 | /* Read firmware image from the filesystem. */ |
| 840 | if ((error = firmware_open("if_athn" , name, &fwh)) != 0) { |
| 841 | aprint_error_dev(sc->sc_dev, |
| 842 | "failed to open firmware file %s (%d)\n" , name, error); |
| 843 | return error; |
| 844 | } |
| 845 | size = firmware_get_size(fwh); |
| 846 | fw = firmware_malloc(size); |
| 847 | if (fw == NULL) { |
| 848 | aprint_error_dev(usc->usc_dev, |
| 849 | "failed to allocate firmware memory\n" ); |
| 850 | firmware_close(fwh); |
| 851 | return ENOMEM; |
| 852 | } |
| 853 | error = firmware_read(fwh, 0, fw, size); |
| 854 | firmware_close(fwh); |
| 855 | if (error != 0) { |
| 856 | aprint_error_dev(usc->usc_dev, |
| 857 | "failed to read firmware (error %d)\n" , error); |
| 858 | firmware_free(fw, size); |
| 859 | return error; |
| 860 | } |
| 861 | |
| 862 | /* Load firmware image. */ |
| 863 | ptr = fw; |
| 864 | addr = AR9271_FIRMWARE >> 8; |
| 865 | req.bmRequestType = UT_WRITE_VENDOR_DEVICE; |
| 866 | req.bRequest = AR_FW_DOWNLOAD; |
| 867 | USETW(req.wIndex, 0); |
| 868 | remain = size; |
| 869 | while (remain > 0) { |
| 870 | mlen = MIN(remain, 4096); |
| 871 | |
| 872 | USETW(req.wValue, addr); |
| 873 | USETW(req.wLength, mlen); |
| 874 | error = usbd_do_request(usc->usc_udev, &req, ptr); |
| 875 | if (error != 0) { |
| 876 | firmware_free(fw, size); |
| 877 | return error; |
| 878 | } |
| 879 | addr += mlen >> 8; |
| 880 | ptr += mlen; |
| 881 | remain -= mlen; |
| 882 | } |
| 883 | firmware_free(fw, size); |
| 884 | |
| 885 | /* Start firmware. */ |
| 886 | if (usc->usc_flags & ATHN_USB_FLAG_AR7010) |
| 887 | addr = AR7010_FIRMWARE_TEXT >> 8; |
| 888 | else |
| 889 | addr = AR9271_FIRMWARE_TEXT >> 8; |
| 890 | req.bmRequestType = UT_WRITE_VENDOR_DEVICE; |
| 891 | req.bRequest = AR_FW_DOWNLOAD_COMP; |
| 892 | USETW(req.wIndex, 0); |
| 893 | USETW(req.wValue, addr); |
| 894 | USETW(req.wLength, 0); |
| 895 | |
| 896 | s = splusb(); |
| 897 | usc->usc_wait_msg_id = AR_HTC_MSG_READY; |
| 898 | error = usbd_do_request(usc->usc_udev, &req, NULL); |
| 899 | /* Wait at most 1 second for firmware to boot. */ |
| 900 | if (error == 0 && usc->usc_wait_msg_id != 0) |
| 901 | error = tsleep(&usc->usc_wait_msg_id, 0, "athnfw" , hz); |
| 902 | usc->usc_wait_msg_id = 0; |
| 903 | splx(s); |
| 904 | return error; |
| 905 | } |
| 906 | |
| 907 | Static int |
| 908 | athn_usb_htc_msg(struct athn_usb_softc *usc, uint16_t msg_id, void *buf, |
| 909 | int len) |
| 910 | { |
| 911 | struct athn_usb_tx_data *data = &usc->usc_tx_cmd; |
| 912 | struct ar_htc_frame_hdr *htc; |
| 913 | struct ar_htc_msg_hdr *msg; |
| 914 | |
| 915 | if (usc->usc_dying) |
| 916 | return USBD_CANCELLED; |
| 917 | |
| 918 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 919 | |
| 920 | htc = (struct ar_htc_frame_hdr *)data->buf; |
| 921 | memset(htc, 0, sizeof(*htc)); |
| 922 | htc->endpoint_id = 0; |
| 923 | htc->payload_len = htobe16(sizeof(*msg) + len); |
| 924 | |
| 925 | msg = (struct ar_htc_msg_hdr *)&htc[1]; |
| 926 | msg->msg_id = htobe16(msg_id); |
| 927 | |
| 928 | memcpy(&msg[1], buf, len); |
| 929 | |
| 930 | usbd_setup_xfer(data->xfer, NULL, data->buf, |
| 931 | sizeof(*htc) + sizeof(*msg) + len, |
| 932 | USBD_SHORT_XFER_OK, ATHN_USB_CMD_TIMEOUT, NULL); |
| 933 | return usbd_sync_transfer(data->xfer); |
| 934 | } |
| 935 | |
| 936 | Static int |
| 937 | athn_usb_htc_setup(struct athn_usb_softc *usc) |
| 938 | { |
| 939 | struct ar_htc_msg_config_pipe cfg; |
| 940 | int s, error; |
| 941 | |
| 942 | /* |
| 943 | * Connect WMI services to USB pipes. |
| 944 | */ |
| 945 | error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_CONTROL, |
| 946 | AR_PIPE_TX_INTR, AR_PIPE_RX_INTR, &usc->usc_ep_ctrl); |
| 947 | if (error != 0) |
| 948 | return error; |
| 949 | error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_BEACON, |
| 950 | AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_bcn); |
| 951 | if (error != 0) |
| 952 | return error; |
| 953 | error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_CAB, |
| 954 | AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_cab); |
| 955 | if (error != 0) |
| 956 | return error; |
| 957 | error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_UAPSD, |
| 958 | AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_uapsd); |
| 959 | if (error != 0) |
| 960 | return error; |
| 961 | error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_MGMT, |
| 962 | AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_mgmt); |
| 963 | if (error != 0) |
| 964 | return error; |
| 965 | error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_DATA_BE, |
| 966 | AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_data[WME_AC_BE]); |
| 967 | if (error != 0) |
| 968 | return error; |
| 969 | error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_DATA_BK, |
| 970 | AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_data[WME_AC_BK]); |
| 971 | if (error != 0) |
| 972 | return error; |
| 973 | error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_DATA_VI, |
| 974 | AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_data[WME_AC_VI]); |
| 975 | if (error != 0) |
| 976 | return error; |
| 977 | error = athn_usb_htc_connect_svc(usc, AR_SVC_WMI_DATA_VO, |
| 978 | AR_PIPE_TX_DATA, AR_PIPE_RX_DATA, &usc->usc_ep_data[WME_AC_VO]); |
| 979 | if (error != 0) |
| 980 | return error; |
| 981 | |
| 982 | /* Set credits for WLAN Tx pipe. */ |
| 983 | memset(&cfg, 0, sizeof(cfg)); |
| 984 | cfg.pipe_id = UE_GET_ADDR(AR_PIPE_TX_DATA); |
| 985 | cfg.credits = (usc->usc_flags & ATHN_USB_FLAG_AR7010) ? 45 : 33; |
| 986 | |
| 987 | s = splusb(); |
| 988 | |
| 989 | usc->usc_wait_msg_id = AR_HTC_MSG_CONF_PIPE_RSP; |
| 990 | error = athn_usb_htc_msg(usc, AR_HTC_MSG_CONF_PIPE, &cfg, sizeof(cfg)); |
| 991 | if (error == 0 && usc->usc_wait_msg_id != 0) |
| 992 | error = tsleep(&usc->usc_wait_msg_id, 0, "athnhtc" , hz); |
| 993 | usc->usc_wait_msg_id = 0; |
| 994 | |
| 995 | splx(s); |
| 996 | |
| 997 | if (error != 0) { |
| 998 | aprint_error_dev(usc->usc_dev, "could not configure pipe\n" ); |
| 999 | return error; |
| 1000 | } |
| 1001 | |
| 1002 | error = athn_usb_htc_msg(usc, AR_HTC_MSG_SETUP_COMPLETE, NULL, 0); |
| 1003 | if (error != 0) { |
| 1004 | aprint_error_dev(usc->usc_dev, "could not complete setup\n" ); |
| 1005 | return error; |
| 1006 | } |
| 1007 | return 0; |
| 1008 | } |
| 1009 | |
| 1010 | Static int |
| 1011 | athn_usb_htc_connect_svc(struct athn_usb_softc *usc, uint16_t svc_id, |
| 1012 | uint8_t ul_pipe, uint8_t dl_pipe, uint8_t *endpoint_id) |
| 1013 | { |
| 1014 | struct ar_htc_msg_conn_svc msg; |
| 1015 | struct ar_htc_msg_conn_svc_rsp rsp; |
| 1016 | int s, error; |
| 1017 | |
| 1018 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1019 | |
| 1020 | memset(&msg, 0, sizeof(msg)); |
| 1021 | msg.svc_id = htobe16(svc_id); |
| 1022 | msg.dl_pipeid = UE_GET_ADDR(dl_pipe); |
| 1023 | msg.ul_pipeid = UE_GET_ADDR(ul_pipe); |
| 1024 | s = splusb(); |
| 1025 | |
| 1026 | usc->usc_msg_conn_svc_rsp = &rsp; |
| 1027 | |
| 1028 | usc->usc_wait_msg_id = AR_HTC_MSG_CONN_SVC_RSP; |
| 1029 | error = athn_usb_htc_msg(usc, AR_HTC_MSG_CONN_SVC, &msg, sizeof(msg)); |
| 1030 | if (error == 0 && usc->usc_wait_msg_id != 0) |
| 1031 | error = tsleep(&usc->usc_wait_msg_id, 0, "athnhtc" , hz); |
| 1032 | usc->usc_wait_msg_id = 0; |
| 1033 | |
| 1034 | splx(s); |
| 1035 | if (error != 0) { |
| 1036 | aprint_error_dev(usc->usc_dev, |
| 1037 | "error waiting for service %d connection\n" , svc_id); |
| 1038 | return error; |
| 1039 | } |
| 1040 | if (rsp.status != AR_HTC_SVC_SUCCESS) { |
| 1041 | aprint_error_dev(usc->usc_dev, |
| 1042 | "service %d connection failed, error %d\n" , |
| 1043 | svc_id, rsp.status); |
| 1044 | return EIO; |
| 1045 | } |
| 1046 | DPRINTFN(DBG_INIT, usc, |
| 1047 | "service %d successfully connected to endpoint %d\n" , |
| 1048 | svc_id, rsp.endpoint_id); |
| 1049 | |
| 1050 | /* Return endpoint id. */ |
| 1051 | *endpoint_id = rsp.endpoint_id; |
| 1052 | return 0; |
| 1053 | } |
| 1054 | |
| 1055 | Static void |
| 1056 | athn_usb_wait_msg(struct athn_usb_softc *usc) |
| 1057 | { |
| 1058 | |
| 1059 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1060 | |
| 1061 | while (__predict_false(usc->usc_wait_msg_id)) |
| 1062 | tsleep(&usc->usc_wait_msg_id, 0, "athnmsg" , hz); |
| 1063 | } |
| 1064 | |
| 1065 | Static void |
| 1066 | athn_usb_wait_cmd(struct athn_usb_softc *usc) |
| 1067 | { |
| 1068 | |
| 1069 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1070 | |
| 1071 | while (__predict_false(usc->usc_wait_cmd_id)) |
| 1072 | tsleep(&usc->usc_wait_cmd_id, 0, "athncmd" , hz); |
| 1073 | } |
| 1074 | |
| 1075 | Static void |
| 1076 | athn_usb_wmieof(struct usbd_xfer *xfer, void * priv, |
| 1077 | usbd_status status) |
| 1078 | { |
| 1079 | struct athn_usb_softc *usc = priv; |
| 1080 | |
| 1081 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1082 | |
| 1083 | if (__predict_false(status == USBD_STALLED)) |
| 1084 | usbd_clear_endpoint_stall_async(usc->usc_tx_intr_pipe); |
| 1085 | |
| 1086 | usc->usc_wmi_done = 1; |
| 1087 | wakeup(&usc->usc_wmi_done); |
| 1088 | } |
| 1089 | |
| 1090 | Static int |
| 1091 | athn_usb_wmi_xcmd(struct athn_usb_softc *usc, uint16_t cmd_id, void *ibuf, |
| 1092 | int ilen, void *obuf) |
| 1093 | { |
| 1094 | struct athn_usb_tx_data *data = &usc->usc_tx_cmd; |
| 1095 | struct ar_htc_frame_hdr *htc; |
| 1096 | struct ar_wmi_cmd_hdr *wmi; |
| 1097 | int s, error; |
| 1098 | |
| 1099 | if (usc->usc_dying) |
| 1100 | return EIO; |
| 1101 | |
| 1102 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1103 | |
| 1104 | htc = (struct ar_htc_frame_hdr *)data->buf; |
| 1105 | memset(htc, 0, sizeof(*htc)); |
| 1106 | htc->endpoint_id = usc->usc_ep_ctrl; |
| 1107 | htc->payload_len = htobe16(sizeof(*wmi) + ilen); |
| 1108 | |
| 1109 | wmi = (struct ar_wmi_cmd_hdr *)&htc[1]; |
| 1110 | wmi->cmd_id = htobe16(cmd_id); |
| 1111 | usc->usc_wmi_seq_no++; |
| 1112 | wmi->seq_no = htobe16(usc->usc_wmi_seq_no); |
| 1113 | |
| 1114 | memcpy(&wmi[1], ibuf, ilen); |
| 1115 | |
| 1116 | usbd_setup_xfer(data->xfer, usc, data->buf, |
| 1117 | sizeof(*htc) + sizeof(*wmi) + ilen, |
| 1118 | USBD_SHORT_XFER_OK, ATHN_USB_CMD_TIMEOUT, |
| 1119 | athn_usb_wmieof); |
| 1120 | |
| 1121 | s = splusb(); |
| 1122 | usc->usc_wmi_done = 0; |
| 1123 | usc->usc_wait_cmd_id = cmd_id; |
| 1124 | error = usbd_transfer(data->xfer); |
| 1125 | if (__predict_true(error == 0 || error == USBD_IN_PROGRESS)) { |
| 1126 | usc->usc_obuf = obuf; |
| 1127 | |
| 1128 | /* Wait for WMI command to complete. */ |
| 1129 | error = tsleep(&usc->usc_wait_cmd_id, 0, "athnwmi" , hz); |
| 1130 | usc->usc_wait_cmd_id = 0; |
| 1131 | athn_usb_wait_wmi(usc); |
| 1132 | } |
| 1133 | splx(s); |
| 1134 | return error; |
| 1135 | } |
| 1136 | |
| 1137 | Static void |
| 1138 | athn_usb_wait_wmi(struct athn_usb_softc *usc) |
| 1139 | { |
| 1140 | |
| 1141 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1142 | |
| 1143 | while (__predict_false(!usc->usc_wmi_done)) |
| 1144 | tsleep(&usc->usc_wmi_done, 0, "athnwmi" , 0); |
| 1145 | } |
| 1146 | |
| 1147 | #ifdef unused |
| 1148 | Static int |
| 1149 | athn_usb_read_rom(struct athn_softc *sc) |
| 1150 | { |
| 1151 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1152 | uint32_t addrs[8], vals[8], addr; |
| 1153 | uint16_t *eep; |
| 1154 | size_t i, j; |
| 1155 | int error = 0; |
| 1156 | |
| 1157 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1158 | |
| 1159 | /* Read EEPROM by blocks of 16 bytes. */ |
| 1160 | eep = sc->sc_eep; |
| 1161 | addr = AR_EEPROM_OFFSET(sc->sc_eep_base); |
| 1162 | for (i = 0; i < sc->sc_eep_size / 16; i++) { |
| 1163 | for (j = 0; j < 8; j++, addr += 4) |
| 1164 | addrs[j] = htobe32(addr); |
| 1165 | error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_REG_READ, |
| 1166 | addrs, sizeof(addrs), vals); |
| 1167 | if (error != 0) |
| 1168 | break; |
| 1169 | for (j = 0; j < 8; j++) |
| 1170 | *eep++ = be32toh(vals[j]); |
| 1171 | } |
| 1172 | return error; |
| 1173 | } |
| 1174 | #endif /* unused */ |
| 1175 | |
| 1176 | Static uint32_t |
| 1177 | athn_usb_read(struct athn_softc *sc, uint32_t addr) |
| 1178 | { |
| 1179 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1180 | uint32_t val; |
| 1181 | int error; |
| 1182 | |
| 1183 | if (usc->usc_dying) |
| 1184 | return 0; |
| 1185 | |
| 1186 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1187 | |
| 1188 | /* Flush pending writes for strict consistency. */ |
| 1189 | athn_usb_write_barrier(sc); |
| 1190 | |
| 1191 | addr = htobe32(addr); |
| 1192 | error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_REG_READ, |
| 1193 | &addr, sizeof(addr), &val); |
| 1194 | if (error != 0) |
| 1195 | return 0xdeadbeef; |
| 1196 | return be32toh(val); |
| 1197 | } |
| 1198 | |
| 1199 | Static void |
| 1200 | athn_usb_write(struct athn_softc *sc, uint32_t addr, uint32_t val) |
| 1201 | { |
| 1202 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1203 | |
| 1204 | if (usc->usc_dying) |
| 1205 | return; |
| 1206 | |
| 1207 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1208 | |
| 1209 | usc->usc_wbuf[usc->usc_wcount].addr = htobe32(addr); |
| 1210 | usc->usc_wbuf[usc->usc_wcount].val = htobe32(val); |
| 1211 | if (++usc->usc_wcount == AR_MAX_WRITE_COUNT) |
| 1212 | athn_usb_write_barrier(sc); |
| 1213 | } |
| 1214 | |
| 1215 | Static void |
| 1216 | athn_usb_write_barrier(struct athn_softc *sc) |
| 1217 | { |
| 1218 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1219 | |
| 1220 | if (usc->usc_dying) |
| 1221 | goto done; |
| 1222 | |
| 1223 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1224 | |
| 1225 | if (usc->usc_wcount == 0) |
| 1226 | return; |
| 1227 | |
| 1228 | (void)athn_usb_wmi_xcmd(usc, AR_WMI_CMD_REG_WRITE, |
| 1229 | usc->usc_wbuf, usc->usc_wcount * sizeof(usc->usc_wbuf[0]), NULL); |
| 1230 | done: |
| 1231 | usc->usc_wcount = 0; /* Always flush buffer. */ |
| 1232 | } |
| 1233 | |
| 1234 | Static int |
| 1235 | athn_usb_media_change(struct ifnet *ifp) |
| 1236 | { |
| 1237 | struct athn_softc *sc = ifp->if_softc; |
| 1238 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1239 | int error; |
| 1240 | |
| 1241 | if (usc->usc_dying) |
| 1242 | return EIO; |
| 1243 | |
| 1244 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1245 | |
| 1246 | error = ieee80211_media_change(ifp); |
| 1247 | if (error == ENETRESET && IS_UP_AND_RUNNING(ifp)) { |
| 1248 | athn_usb_stop(ifp); |
| 1249 | error = athn_usb_init(ifp); |
| 1250 | } |
| 1251 | return error; |
| 1252 | } |
| 1253 | |
| 1254 | Static int |
| 1255 | athn_usb_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, |
| 1256 | int arg) |
| 1257 | { |
| 1258 | struct athn_softc *sc = ic->ic_ifp->if_softc; |
| 1259 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1260 | struct athn_usb_cmd_newstate cmd; |
| 1261 | |
| 1262 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1263 | |
| 1264 | /* Do it in a process context. */ |
| 1265 | cmd.state = nstate; |
| 1266 | cmd.arg = arg; |
| 1267 | athn_usb_do_async(usc, athn_usb_newstate_cb, &cmd, sizeof(cmd)); |
| 1268 | return 0; |
| 1269 | } |
| 1270 | |
| 1271 | Static void |
| 1272 | athn_usb_newstate_cb(struct athn_usb_softc *usc, void *arg) |
| 1273 | { |
| 1274 | struct athn_usb_cmd_newstate *cmd = arg; |
| 1275 | struct athn_softc *sc = &usc->usc_sc; |
| 1276 | struct ieee80211com *ic = &sc->sc_ic; |
| 1277 | enum ieee80211_state ostate, nstate; |
| 1278 | uint32_t reg, imask; |
| 1279 | int s; |
| 1280 | |
| 1281 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1282 | |
| 1283 | callout_stop(&sc->sc_calib_to); |
| 1284 | |
| 1285 | s = splnet(); |
| 1286 | |
| 1287 | ostate = ic->ic_state; |
| 1288 | nstate = cmd->state; |
| 1289 | DPRINTFN(DBG_STM, usc, "newstate %s(%d) -> %s(%d)\n" , |
| 1290 | ieee80211_state_name[ostate], ostate, |
| 1291 | ieee80211_state_name[nstate], nstate); |
| 1292 | |
| 1293 | if (ostate == IEEE80211_S_RUN) { |
| 1294 | uint8_t sta_index; |
| 1295 | |
| 1296 | sta_index = ATHN_NODE(ic->ic_bss)->sta_index; |
| 1297 | DPRINTFN(DBG_NODES, usc, "removing node %u\n" , sta_index); |
| 1298 | athn_usb_remove_hw_node(usc, &sta_index); |
| 1299 | } |
| 1300 | |
| 1301 | switch (nstate) { |
| 1302 | case IEEE80211_S_INIT: |
| 1303 | athn_set_led(sc, 0); |
| 1304 | break; |
| 1305 | case IEEE80211_S_SCAN: |
| 1306 | /* Make the LED blink while scanning. */ |
| 1307 | athn_set_led(sc, !sc->sc_led_state); |
| 1308 | (void)athn_usb_switch_chan(sc, ic->ic_curchan, NULL); |
| 1309 | if (!usc->usc_dying) |
| 1310 | callout_schedule(&sc->sc_scan_to, hz / 5); |
| 1311 | break; |
| 1312 | case IEEE80211_S_AUTH: |
| 1313 | athn_set_led(sc, 0); |
| 1314 | athn_usb_switch_chan(sc, ic->ic_curchan, NULL); |
| 1315 | break; |
| 1316 | case IEEE80211_S_ASSOC: |
| 1317 | break; |
| 1318 | case IEEE80211_S_RUN: |
| 1319 | athn_set_led(sc, 1); |
| 1320 | |
| 1321 | if (ic->ic_opmode == IEEE80211_M_MONITOR) |
| 1322 | break; |
| 1323 | |
| 1324 | /* Create node entry for our BSS. */ |
| 1325 | DPRINTFN(DBG_NODES, sc, "create node for AID=0x%x\n" , |
| 1326 | ic->ic_bss->ni_associd); |
| 1327 | athn_usb_create_node(usc, ic->ic_bss); /* XXX: handle error? */ |
| 1328 | |
| 1329 | athn_set_bss(sc, ic->ic_bss); |
| 1330 | athn_usb_wmi_cmd(usc, AR_WMI_CMD_DISABLE_INTR); |
| 1331 | #ifndef IEEE80211_STA_ONLY |
| 1332 | if (ic->ic_opmode == IEEE80211_M_HOSTAP) { |
| 1333 | athn_set_hostap_timers(sc); |
| 1334 | /* Enable software beacon alert interrupts. */ |
| 1335 | imask = htobe32(AR_IMR_SWBA); |
| 1336 | } |
| 1337 | else |
| 1338 | #endif |
| 1339 | { |
| 1340 | athn_set_sta_timers(sc); |
| 1341 | /* Enable beacon miss interrupts. */ |
| 1342 | imask = htobe32(AR_IMR_BMISS); |
| 1343 | |
| 1344 | /* Stop receiving beacons from other BSS. */ |
| 1345 | reg = AR_READ(sc, AR_RX_FILTER); |
| 1346 | reg = (reg & ~AR_RX_FILTER_BEACON) | |
| 1347 | AR_RX_FILTER_MYBEACON; |
| 1348 | AR_WRITE(sc, AR_RX_FILTER, reg); |
| 1349 | AR_WRITE_BARRIER(sc); |
| 1350 | } |
| 1351 | athn_usb_wmi_xcmd(usc, AR_WMI_CMD_ENABLE_INTR, |
| 1352 | &imask, sizeof(imask), NULL); |
| 1353 | break; |
| 1354 | } |
| 1355 | if (!usc->usc_dying) |
| 1356 | (void)sc->sc_newstate(ic, nstate, cmd->arg); |
| 1357 | splx(s); |
| 1358 | } |
| 1359 | |
| 1360 | Static void |
| 1361 | athn_usb_newassoc(struct ieee80211_node *ni, int isnew) |
| 1362 | { |
| 1363 | struct ieee80211com *ic = ni->ni_ic; |
| 1364 | struct athn_softc *sc = ic->ic_ifp->if_softc; |
| 1365 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1366 | |
| 1367 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1368 | |
| 1369 | if (ic->ic_opmode != IEEE80211_M_HOSTAP || !isnew) |
| 1370 | return; |
| 1371 | |
| 1372 | /* Do it in a process context. */ |
| 1373 | ieee80211_ref_node(ni); |
| 1374 | athn_usb_do_async(usc, athn_usb_newassoc_cb, &ni, sizeof(ni)); |
| 1375 | } |
| 1376 | |
| 1377 | Static void |
| 1378 | athn_usb_newassoc_cb(struct athn_usb_softc *usc, void *arg) |
| 1379 | { |
| 1380 | struct ieee80211_node *ni = *(void **)arg; |
| 1381 | int s; |
| 1382 | |
| 1383 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1384 | |
| 1385 | s = splnet(); |
| 1386 | /* NB: Node may have left before we got scheduled. */ |
| 1387 | if (ni->ni_associd != 0) { |
| 1388 | DPRINTFN(DBG_NODES, usc, "creating node for AID=0x%x\n" , |
| 1389 | ni->ni_associd); |
| 1390 | (void)athn_usb_create_node(usc, ni); /* XXX: handle error? */ |
| 1391 | } |
| 1392 | ieee80211_free_node(ni); |
| 1393 | splx(s); |
| 1394 | } |
| 1395 | |
| 1396 | #ifdef notyet |
| 1397 | Static int |
| 1398 | athn_usb_ampdu_tx_start(struct ieee80211com *ic, struct ieee80211_node *ni, |
| 1399 | uint8_t tid) |
| 1400 | { |
| 1401 | struct athn_softc *sc = ic->ic_ifp->if_softc; |
| 1402 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1403 | struct athn_node *an = ATHN_NODE(ni); |
| 1404 | struct athn_usb_aggr_cmd cmd; |
| 1405 | |
| 1406 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1407 | |
| 1408 | /* Do it in a process context. */ |
| 1409 | cmd.sta_index = an->sta_index; |
| 1410 | cmd.tid = tid; |
| 1411 | athn_usb_do_async(usc, athn_usb_ampdu_tx_start_cb, &cmd, sizeof(cmd)); |
| 1412 | return 0; |
| 1413 | } |
| 1414 | |
| 1415 | Static void |
| 1416 | athn_usb_ampdu_tx_start_cb(struct athn_usb_softc *usc, void *arg) |
| 1417 | { |
| 1418 | struct athn_usb_aggr_cmd *cmd = arg; |
| 1419 | struct ar_htc_target_aggr aggr; |
| 1420 | |
| 1421 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1422 | |
| 1423 | memset(&aggr, 0, sizeof(aggr)); |
| 1424 | aggr.sta_index = cmd->sta_index; |
| 1425 | aggr.tidno = cmd->tid; |
| 1426 | aggr.aggr_enable = 1; |
| 1427 | (void)athn_usb_wmi_xcmd(usc, AR_WMI_CMD_TX_AGGR_ENABLE, |
| 1428 | &aggr, sizeof(aggr), NULL); |
| 1429 | } |
| 1430 | |
| 1431 | Static void |
| 1432 | athn_usb_ampdu_tx_stop(struct ieee80211com *ic, struct ieee80211_node *ni, |
| 1433 | uint8_t tid) |
| 1434 | { |
| 1435 | struct athn_softc *sc = ic->ic_ifp->if_softc; |
| 1436 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1437 | struct athn_node *an = ATHN_NODE(ni); |
| 1438 | struct athn_usb_aggr_cmd cmd; |
| 1439 | |
| 1440 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1441 | |
| 1442 | /* Do it in a process context. */ |
| 1443 | cmd.sta_index = an->sta_index; |
| 1444 | cmd.tid = tid; |
| 1445 | athn_usb_do_async(usc, athn_usb_ampdu_tx_stop_cb, &cmd, sizeof(cmd)); |
| 1446 | } |
| 1447 | |
| 1448 | Static void |
| 1449 | athn_usb_ampdu_tx_stop_cb(struct athn_usb_softc *usc, void *arg) |
| 1450 | { |
| 1451 | struct athn_usb_aggr_cmd *cmd = arg; |
| 1452 | struct ar_htc_target_aggr aggr; |
| 1453 | |
| 1454 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1455 | |
| 1456 | memset(&aggr, 0, sizeof(aggr)); |
| 1457 | aggr.sta_index = cmd->sta_index; |
| 1458 | aggr.tidno = cmd->tid; |
| 1459 | aggr.aggr_enable = 0; |
| 1460 | (void)athn_usb_wmi_xcmd(usc, AR_WMI_CMD_TX_AGGR_ENABLE, |
| 1461 | &aggr, sizeof(aggr), NULL); |
| 1462 | } |
| 1463 | #endif /* notyet */ |
| 1464 | |
| 1465 | Static int |
| 1466 | athn_usb_remove_hw_node(struct athn_usb_softc *usc, uint8_t *sta_idx) |
| 1467 | { |
| 1468 | int error; |
| 1469 | |
| 1470 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1471 | |
| 1472 | error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_NODE_REMOVE, |
| 1473 | sta_idx, sizeof(*sta_idx), NULL); |
| 1474 | |
| 1475 | DPRINTFN(DBG_NODES, usc, "node=%u error=%d\n" , |
| 1476 | *sta_idx, error); |
| 1477 | return error; |
| 1478 | } |
| 1479 | |
| 1480 | Static int |
| 1481 | athn_usb_create_hw_node(struct athn_usb_softc *usc, |
| 1482 | struct ar_htc_target_sta *sta) |
| 1483 | { |
| 1484 | int error; |
| 1485 | |
| 1486 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1487 | |
| 1488 | error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_NODE_CREATE, |
| 1489 | sta, sizeof(*sta), NULL); |
| 1490 | |
| 1491 | DPRINTFN(DBG_NODES, usc, "node=%u error=%d\n" , |
| 1492 | sta->sta_index, error); |
| 1493 | |
| 1494 | return error; |
| 1495 | } |
| 1496 | |
| 1497 | Static int |
| 1498 | athn_usb_create_node(struct athn_usb_softc *usc, struct ieee80211_node *ni) |
| 1499 | { |
| 1500 | struct athn_node *an = ATHN_NODE(ni); |
| 1501 | struct ar_htc_target_sta sta; |
| 1502 | struct ar_htc_target_rate rate; |
| 1503 | int error; |
| 1504 | |
| 1505 | DPRINTFN(DBG_FN | DBG_NODES, usc, "AID=0x%x\n" , ni->ni_associd); |
| 1506 | |
| 1507 | /* |
| 1508 | * NB: this is called by ic_newstate and (in HOSTAP mode by) |
| 1509 | * ic_newassoc. |
| 1510 | * |
| 1511 | * The firmware has a limit of 8 nodes. In HOSTAP mode, we |
| 1512 | * limit the AID to < 8 and use that value to index the |
| 1513 | * firmware node table. Node zero is used for the BSS. |
| 1514 | * |
| 1515 | * In STA mode, we simply use node 1 for the BSS. |
| 1516 | */ |
| 1517 | if (ATHN_SOFTC(usc)->sc_ic.ic_opmode == IEEE80211_M_HOSTAP) |
| 1518 | an->sta_index = IEEE80211_NODE_AID(ni); |
| 1519 | else |
| 1520 | an->sta_index = 1; |
| 1521 | |
| 1522 | /* Create node entry on target. */ |
| 1523 | memset(&sta, 0, sizeof(sta)); |
| 1524 | IEEE80211_ADDR_COPY(sta.macaddr, ni->ni_macaddr); |
| 1525 | IEEE80211_ADDR_COPY(sta.bssid, ni->ni_bssid); |
| 1526 | |
| 1527 | sta.associd = htobe16(ni->ni_associd); |
| 1528 | sta.valid = 1; |
| 1529 | sta.sta_index = an->sta_index; |
| 1530 | |
| 1531 | sta.maxampdu = 0xffff; |
| 1532 | #ifndef IEEE80211_NO_HT |
| 1533 | if (ni->ni_flags & IEEE80211_NODE_HT) |
| 1534 | sta.flags |= htobe16(AR_HTC_STA_HT); |
| 1535 | #endif |
| 1536 | error = athn_usb_create_hw_node(usc, &sta); |
| 1537 | if (error) |
| 1538 | return error; |
| 1539 | |
| 1540 | /* Setup supported rates. */ |
| 1541 | memset(&rate, 0, sizeof(rate)); |
| 1542 | rate.sta_index = sta.sta_index; |
| 1543 | rate.isnew = 1; |
| 1544 | rate.lg_rates.rs_nrates = ni->ni_rates.rs_nrates; |
| 1545 | memcpy(rate.lg_rates.rs_rates, ni->ni_rates.rs_rates, |
| 1546 | ni->ni_rates.rs_nrates); |
| 1547 | |
| 1548 | #ifndef IEEE80211_NO_HT |
| 1549 | if (ni->ni_flags & IEEE80211_NODE_HT) { |
| 1550 | rate.capflags |= htobe32(AR_RC_HT_FLAG); |
| 1551 | #ifdef notyet |
| 1552 | /* XXX setup HT rates */ |
| 1553 | if (ni->ni_htcaps & IEEE80211_HTCAP_CBW20_40) |
| 1554 | rate.capflags |= htobe32(AR_RC_40_FLAG); |
| 1555 | if (ni->ni_htcaps & IEEE80211_HTCAP_SGI40) |
| 1556 | rate.capflags |= htobe32(AR_RC_SGI_FLAG); |
| 1557 | if (ni->ni_htcaps & IEEE80211_HTCAP_SGI20) |
| 1558 | rate.capflags |= htobe32(AR_RC_SGI_FLAG); |
| 1559 | #endif |
| 1560 | } |
| 1561 | #endif |
| 1562 | error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_RC_RATE_UPDATE, |
| 1563 | &rate, sizeof(rate), NULL); |
| 1564 | return error; |
| 1565 | } |
| 1566 | |
| 1567 | Static void |
| 1568 | athn_usb_rx_enable(struct athn_softc *sc) |
| 1569 | { |
| 1570 | |
| 1571 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1572 | |
| 1573 | AR_WRITE(sc, AR_CR, AR_CR_RXE); |
| 1574 | AR_WRITE_BARRIER(sc); |
| 1575 | } |
| 1576 | |
| 1577 | Static int |
| 1578 | athn_usb_switch_chan(struct athn_softc *sc, struct ieee80211_channel *curchan, |
| 1579 | struct ieee80211_channel *extchan) |
| 1580 | { |
| 1581 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1582 | uint16_t mode; |
| 1583 | int error; |
| 1584 | |
| 1585 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1586 | |
| 1587 | /* Disable interrupts. */ |
| 1588 | error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_DISABLE_INTR); |
| 1589 | if (error != 0) |
| 1590 | goto reset; |
| 1591 | /* Stop all Tx queues. */ |
| 1592 | error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_DRAIN_TXQ_ALL); |
| 1593 | if (error != 0) |
| 1594 | goto reset; |
| 1595 | /* Stop Rx. */ |
| 1596 | error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_STOP_RECV); |
| 1597 | if (error != 0) |
| 1598 | goto reset; |
| 1599 | |
| 1600 | /* If band or bandwidth changes, we need to do a full reset. */ |
| 1601 | if (curchan->ic_flags != sc->sc_curchan->ic_flags || |
| 1602 | ((extchan != NULL) ^ (sc->sc_curchanext != NULL))) { |
| 1603 | DPRINTFN(DBG_RF, sc, "channel band switch\n" ); |
| 1604 | goto reset; |
| 1605 | } |
| 1606 | |
| 1607 | error = athn_set_chan(sc, curchan, extchan); |
| 1608 | if (AR_SREV_9271(sc) && error == 0) |
| 1609 | ar9271_load_ani(sc); |
| 1610 | if (error != 0) { |
| 1611 | reset: /* Error found, try a full reset. */ |
| 1612 | DPRINTFN(DBG_RF, sc, "needs a full reset\n" ); |
| 1613 | error = athn_hw_reset(sc, curchan, extchan, 0); |
| 1614 | if (error != 0) /* Hopeless case. */ |
| 1615 | return error; |
| 1616 | } |
| 1617 | |
| 1618 | error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_START_RECV); |
| 1619 | if (error != 0) |
| 1620 | return error; |
| 1621 | athn_rx_start(sc); |
| 1622 | |
| 1623 | mode = htobe16(IEEE80211_IS_CHAN_2GHZ(curchan) ? |
| 1624 | AR_HTC_MODE_11NG : AR_HTC_MODE_11NA); |
| 1625 | error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_SET_MODE, |
| 1626 | &mode, sizeof(mode), NULL); |
| 1627 | if (error != 0) |
| 1628 | return error; |
| 1629 | |
| 1630 | /* Re-enable interrupts. */ |
| 1631 | error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_ENABLE_INTR); |
| 1632 | return error; |
| 1633 | } |
| 1634 | |
| 1635 | #ifdef notyet_edca |
| 1636 | Static void |
| 1637 | athn_usb_updateedca(struct ieee80211com *ic) |
| 1638 | { |
| 1639 | struct athn_softc *sc = ic->ic_ifp->if_softc; |
| 1640 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1641 | |
| 1642 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1643 | |
| 1644 | /* Do it in a process context. */ |
| 1645 | athn_usb_do_async(usc, athn_usb_updateedca_cb, NULL, 0); |
| 1646 | } |
| 1647 | |
| 1648 | Static void |
| 1649 | athn_usb_updateedca_cb(struct athn_usb_softc *usc, void *arg) |
| 1650 | { |
| 1651 | int s; |
| 1652 | |
| 1653 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1654 | |
| 1655 | s = splnet(); |
| 1656 | athn_updateedca(&usc->usc_sc.sc_ic); |
| 1657 | splx(s); |
| 1658 | } |
| 1659 | #endif /* notyet_edca */ |
| 1660 | |
| 1661 | Static void |
| 1662 | athn_usb_updateslot(struct ifnet *ifp) |
| 1663 | { |
| 1664 | struct athn_softc *sc = ifp->if_softc; |
| 1665 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1666 | |
| 1667 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1668 | |
| 1669 | /* |
| 1670 | * NB: athn_updateslog() needs to be done in a process context |
| 1671 | * to avoid being called by ieee80211_reset_erp() inside a |
| 1672 | * spinlock held by ieee80211_free_allnodes(). |
| 1673 | * |
| 1674 | * XXX: calling this during the athn_attach() causes |
| 1675 | * usb_insert_transfer() to produce a bunch of "not busy" |
| 1676 | * messages. Why? |
| 1677 | */ |
| 1678 | if (usc->usc_athn_attached) |
| 1679 | athn_usb_do_async(usc, athn_usb_updateslot_cb, NULL, 0); |
| 1680 | } |
| 1681 | |
| 1682 | Static void |
| 1683 | athn_usb_updateslot_cb(struct athn_usb_softc *usc, void *arg) |
| 1684 | { |
| 1685 | int s; |
| 1686 | |
| 1687 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1688 | |
| 1689 | s = splnet(); |
| 1690 | athn_updateslot(&usc->usc_sc.sc_if); |
| 1691 | splx(s); |
| 1692 | } |
| 1693 | |
| 1694 | #ifdef notyet |
| 1695 | Static int |
| 1696 | athn_usb_set_key(struct ieee80211com *ic, struct ieee80211_node *ni, |
| 1697 | struct ieee80211_key *k) |
| 1698 | { |
| 1699 | struct athn_softc *sc = ic->ic_ifp->if_softc; |
| 1700 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1701 | struct ifnet *ifp = &usc->usc_sc.sc_if; |
| 1702 | struct athn_usb_cmd_key cmd; |
| 1703 | |
| 1704 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1705 | |
| 1706 | /* Defer setting of WEP keys until interface is brought up. */ |
| 1707 | if (!IS_UP_AND_RUNNING(ifp)) |
| 1708 | return 0; |
| 1709 | |
| 1710 | /* Do it in a process context. */ |
| 1711 | cmd.ni = (ni != NULL) ? ieee80211_ref_node(ni) : NULL; |
| 1712 | cmd.key = k; |
| 1713 | athn_usb_do_async(usc, athn_usb_set_key_cb, &cmd, sizeof(cmd)); |
| 1714 | return 0; |
| 1715 | } |
| 1716 | |
| 1717 | Static void |
| 1718 | athn_usb_set_key_cb(struct athn_usb_softc *usc, void *arg) |
| 1719 | { |
| 1720 | struct ieee80211com *ic = &usc->usc_sc.sc_ic; |
| 1721 | struct athn_usb_cmd_key *cmd = arg; |
| 1722 | int s; |
| 1723 | |
| 1724 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1725 | |
| 1726 | s = splnet(); |
| 1727 | athn_set_key(ic, cmd->ni, cmd->key); |
| 1728 | if (cmd->ni != NULL) |
| 1729 | ieee80211_free_node(cmd->ni); |
| 1730 | splx(s); |
| 1731 | } |
| 1732 | |
| 1733 | Static void |
| 1734 | athn_usb_delete_key(struct ieee80211com *ic, struct ieee80211_node *ni, |
| 1735 | struct ieee80211_key *k) |
| 1736 | { |
| 1737 | struct athn_softc *sc = ic->ic_ifp->if_softc; |
| 1738 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 1739 | struct ifnet *ifp = &usc->usc_sc.sc_if; |
| 1740 | struct athn_usb_cmd_key cmd; |
| 1741 | |
| 1742 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1743 | |
| 1744 | if (!(ifp->if_flags & IFF_RUNNING) || |
| 1745 | ic->ic_state != IEEE80211_S_RUN) |
| 1746 | return; /* Nothing to do. */ |
| 1747 | |
| 1748 | /* Do it in a process context. */ |
| 1749 | cmd.ni = (ni != NULL) ? ieee80211_ref_node(ni) : NULL; |
| 1750 | cmd.key = k; |
| 1751 | athn_usb_do_async(usc, athn_usb_delete_key_cb, &cmd, sizeof(cmd)); |
| 1752 | } |
| 1753 | |
| 1754 | Static void |
| 1755 | athn_usb_delete_key_cb(struct athn_usb_softc *usc, void *arg) |
| 1756 | { |
| 1757 | struct ieee80211com *ic = &usc->usc_sc.sc_ic; |
| 1758 | struct athn_usb_cmd_key *cmd = arg; |
| 1759 | int s; |
| 1760 | |
| 1761 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1762 | |
| 1763 | s = splnet(); |
| 1764 | athn_delete_key(ic, cmd->ni, cmd->key); |
| 1765 | if (cmd->ni != NULL) |
| 1766 | ieee80211_free_node(cmd->ni); |
| 1767 | splx(s); |
| 1768 | } |
| 1769 | #endif /* notyet */ |
| 1770 | |
| 1771 | #ifndef IEEE80211_STA_ONLY |
| 1772 | Static void |
| 1773 | athn_usb_bcneof(struct usbd_xfer *xfer, void * priv, |
| 1774 | usbd_status status) |
| 1775 | { |
| 1776 | struct athn_usb_tx_data *data = priv; |
| 1777 | struct athn_usb_softc *usc = data->sc; |
| 1778 | |
| 1779 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1780 | |
| 1781 | if (__predict_false(status == USBD_STALLED)) |
| 1782 | usbd_clear_endpoint_stall_async(usc->usc_tx_data_pipe); |
| 1783 | usc->usc_tx_bcn = data; |
| 1784 | } |
| 1785 | |
| 1786 | /* |
| 1787 | * Process Software Beacon Alert interrupts. |
| 1788 | */ |
| 1789 | Static void |
| 1790 | athn_usb_swba(struct athn_usb_softc *usc) |
| 1791 | { |
| 1792 | struct athn_softc *sc = &usc->usc_sc; |
| 1793 | struct ieee80211com *ic = &sc->sc_ic; |
| 1794 | struct athn_usb_tx_data *data; |
| 1795 | struct ieee80211_frame *wh; |
| 1796 | struct ieee80211_beacon_offsets bo; |
| 1797 | struct ar_stream_hdr *hdr; |
| 1798 | struct ar_htc_frame_hdr *htc; |
| 1799 | struct ar_tx_bcn *bcn; |
| 1800 | struct mbuf *m; |
| 1801 | int error; |
| 1802 | |
| 1803 | if (usc->usc_dying) |
| 1804 | return; |
| 1805 | |
| 1806 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 1807 | |
| 1808 | if (ic->ic_dtim_count == 0) |
| 1809 | ic->ic_dtim_count = ic->ic_dtim_period - 1; |
| 1810 | else |
| 1811 | ic->ic_dtim_count--; |
| 1812 | |
| 1813 | /* Make sure previous beacon has been sent. */ |
| 1814 | if (usc->usc_tx_bcn == NULL) |
| 1815 | return; |
| 1816 | data = usc->usc_tx_bcn; |
| 1817 | |
| 1818 | /* Get new beacon. */ |
| 1819 | #ifdef ATHN_DEBUG |
| 1820 | memset(&bo, 0, sizeof(bo)); |
| 1821 | #endif |
| 1822 | m = ieee80211_beacon_alloc(ic, ic->ic_bss, &bo); |
| 1823 | if (__predict_false(m == NULL)) |
| 1824 | return; |
| 1825 | /* Assign sequence number. */ |
| 1826 | /* XXX: use non-QoS tid? */ |
| 1827 | wh = mtod(m, struct ieee80211_frame *); |
| 1828 | *(uint16_t *)&wh->i_seq[0] = |
| 1829 | htole16(ic->ic_bss->ni_txseqs[0] << IEEE80211_SEQ_SEQ_SHIFT); |
| 1830 | ic->ic_bss->ni_txseqs[0]++; |
| 1831 | |
| 1832 | hdr = (struct ar_stream_hdr *)data->buf; |
| 1833 | hdr->tag = htole16(AR_USB_TX_STREAM_TAG); |
| 1834 | hdr->len = htole16(sizeof(*htc) + sizeof(*bcn) + m->m_pkthdr.len); |
| 1835 | |
| 1836 | htc = (struct ar_htc_frame_hdr *)&hdr[1]; |
| 1837 | memset(htc, 0, sizeof(*htc)); |
| 1838 | htc->endpoint_id = usc->usc_ep_bcn; |
| 1839 | htc->payload_len = htobe16(sizeof(*bcn) + m->m_pkthdr.len); |
| 1840 | |
| 1841 | bcn = (struct ar_tx_bcn *)&htc[1]; |
| 1842 | memset(bcn, 0, sizeof(*bcn)); |
| 1843 | bcn->vif_idx = 0; |
| 1844 | |
| 1845 | m_copydata(m, 0, m->m_pkthdr.len, (void *)&bcn[1]); |
| 1846 | |
| 1847 | usbd_setup_xfer(data->xfer, data, data->buf, |
| 1848 | sizeof(*hdr) + sizeof(*htc) + sizeof(*bcn) + m->m_pkthdr.len, |
| 1849 | USBD_SHORT_XFER_OK, ATHN_USB_TX_TIMEOUT, |
| 1850 | athn_usb_bcneof); |
| 1851 | |
| 1852 | m_freem(m); |
| 1853 | usc->usc_tx_bcn = NULL; |
| 1854 | error = usbd_transfer(data->xfer); |
| 1855 | if (__predict_false(error != USBD_IN_PROGRESS && error != 0)) |
| 1856 | usc->usc_tx_bcn = data; |
| 1857 | } |
| 1858 | #endif |
| 1859 | |
| 1860 | Static void |
| 1861 | athn_usb_rx_wmi_ctrl(struct athn_usb_softc *usc, uint8_t *buf, size_t len) |
| 1862 | { |
| 1863 | #ifdef ATHN_DEBUG |
| 1864 | struct ar_wmi_evt_txrate *txrate; |
| 1865 | #endif |
| 1866 | struct ar_wmi_cmd_hdr *wmi; |
| 1867 | uint16_t cmd_id; |
| 1868 | |
| 1869 | if (usc->usc_dying) |
| 1870 | return; |
| 1871 | |
| 1872 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1873 | |
| 1874 | if (__predict_false(len < sizeof(*wmi))) |
| 1875 | return; |
| 1876 | wmi = (struct ar_wmi_cmd_hdr *)buf; |
| 1877 | cmd_id = be16toh(wmi->cmd_id); |
| 1878 | |
| 1879 | if (!(cmd_id & AR_WMI_EVT_FLAG)) { |
| 1880 | if (usc->usc_wait_cmd_id != cmd_id) |
| 1881 | return; /* Unexpected reply. */ |
| 1882 | if (usc->usc_obuf != NULL) { |
| 1883 | /* Copy answer into caller supplied buffer. */ |
| 1884 | memcpy(usc->usc_obuf, &wmi[1], len - sizeof(*wmi)); |
| 1885 | } |
| 1886 | /* Notify caller of completion. */ |
| 1887 | usc->usc_wait_cmd_id = 0; |
| 1888 | wakeup(&usc->usc_wait_cmd_id); |
| 1889 | return; |
| 1890 | } |
| 1891 | /* |
| 1892 | * XXX: the Linux 2.6 and 3.7.4 kernels differ on the event numbers! |
| 1893 | * See the alternate defines in if_athn_usb.h. |
| 1894 | */ |
| 1895 | switch (cmd_id & 0xfff) { |
| 1896 | #ifndef IEEE80211_STA_ONLY |
| 1897 | case AR_WMI_EVT_SWBA: |
| 1898 | athn_usb_swba(usc); |
| 1899 | break; |
| 1900 | #endif |
| 1901 | case AR_WMI_EVT_FATAL: |
| 1902 | aprint_error_dev(usc->usc_dev, "fatal firmware error\n" ); |
| 1903 | break; |
| 1904 | case AR_WMI_EVT_TXRATE: |
| 1905 | #ifdef ATHN_DEBUG |
| 1906 | txrate = (struct ar_wmi_evt_txrate *)&wmi[1]; |
| 1907 | DPRINTFN(DBG_TX, usc, "txrate=%d\n" , be32toh(txrate->txrate)); |
| 1908 | #endif |
| 1909 | break; |
| 1910 | default: |
| 1911 | DPRINTFN(DBG_TX, usc, "WMI event 0x%x (%d) ignored\n" , cmd_id, cmd_id); |
| 1912 | break; |
| 1913 | } |
| 1914 | } |
| 1915 | |
| 1916 | Static void |
| 1917 | athn_usb_intr(struct usbd_xfer *xfer, void * priv, |
| 1918 | usbd_status status) |
| 1919 | { |
| 1920 | struct athn_usb_softc *usc = priv; |
| 1921 | struct ar_htc_frame_hdr *htc; |
| 1922 | struct ar_htc_msg_hdr *msg; |
| 1923 | uint8_t *buf = usc->usc_ibuf; |
| 1924 | uint16_t msg_id; |
| 1925 | int len; |
| 1926 | |
| 1927 | if (usc->usc_dying) |
| 1928 | return; |
| 1929 | |
| 1930 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 1931 | |
| 1932 | if (__predict_false(status != USBD_NORMAL_COMPLETION)) { |
| 1933 | DPRINTFN(DBG_INTR, usc, "intr status=%d\n" , status); |
| 1934 | if (status == USBD_STALLED) |
| 1935 | usbd_clear_endpoint_stall_async(usc->usc_rx_intr_pipe); |
| 1936 | return; |
| 1937 | } |
| 1938 | usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); |
| 1939 | |
| 1940 | /* Skip watchdog pattern if present. */ |
| 1941 | if (len >= 4 && *(uint32_t *)buf == htobe32(0x00c60000)) { |
| 1942 | buf += 4; |
| 1943 | len -= 4; |
| 1944 | } |
| 1945 | if (__predict_false(len < (int)sizeof(*htc))) |
| 1946 | return; |
| 1947 | htc = (struct ar_htc_frame_hdr *)buf; |
| 1948 | /* Skip HTC header. */ |
| 1949 | buf += sizeof(*htc); |
| 1950 | len -= sizeof(*htc); |
| 1951 | |
| 1952 | if (htc->endpoint_id != 0) { |
| 1953 | if (__predict_false(htc->endpoint_id != usc->usc_ep_ctrl)) |
| 1954 | return; |
| 1955 | /* Remove trailer if present. */ |
| 1956 | if (htc->flags & AR_HTC_FLAG_TRAILER) { |
| 1957 | if (__predict_false(len < htc->control[0])) |
| 1958 | return; |
| 1959 | len -= htc->control[0]; |
| 1960 | } |
| 1961 | athn_usb_rx_wmi_ctrl(usc, buf, len); |
| 1962 | return; |
| 1963 | } |
| 1964 | |
| 1965 | /* |
| 1966 | * Endpoint 0 carries HTC messages. |
| 1967 | */ |
| 1968 | if (__predict_false(len < (int)sizeof(*msg))) |
| 1969 | return; |
| 1970 | msg = (struct ar_htc_msg_hdr *)buf; |
| 1971 | msg_id = be16toh(msg->msg_id); |
| 1972 | DPRINTFN(DBG_RX, usc, "Rx HTC message %d\n" , msg_id); |
| 1973 | switch (msg_id) { |
| 1974 | case AR_HTC_MSG_READY: |
| 1975 | case AR_HTC_MSG_CONF_PIPE_RSP: |
| 1976 | if (usc->usc_wait_msg_id != msg_id) |
| 1977 | break; |
| 1978 | usc->usc_wait_msg_id = 0; |
| 1979 | wakeup(&usc->usc_wait_msg_id); |
| 1980 | break; |
| 1981 | case AR_HTC_MSG_CONN_SVC_RSP: |
| 1982 | if (usc->usc_wait_msg_id != msg_id) |
| 1983 | break; |
| 1984 | if (usc->usc_msg_conn_svc_rsp != NULL) { |
| 1985 | memcpy(usc->usc_msg_conn_svc_rsp, &msg[1], |
| 1986 | sizeof(*usc->usc_msg_conn_svc_rsp)); |
| 1987 | } |
| 1988 | usc->usc_wait_msg_id = 0; |
| 1989 | wakeup(&usc->usc_wait_msg_id); |
| 1990 | break; |
| 1991 | default: |
| 1992 | DPRINTFN(DBG_RX, usc, "HTC message %d ignored\n" , msg_id); |
| 1993 | break; |
| 1994 | } |
| 1995 | } |
| 1996 | |
| 1997 | Static void |
| 1998 | athn_usb_rx_radiotap(struct athn_softc *sc, struct mbuf *m, |
| 1999 | struct ar_rx_status *rs) |
| 2000 | { |
| 2001 | struct athn_rx_radiotap_header *tap = &sc->sc_rxtap; |
| 2002 | struct ieee80211com *ic = &sc->sc_ic; |
| 2003 | uint8_t rate; |
| 2004 | |
| 2005 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 2006 | |
| 2007 | tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; |
| 2008 | tap->wr_tsft = htole64(be64toh(rs->rs_tstamp)); |
| 2009 | tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); |
| 2010 | tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); |
| 2011 | tap->wr_dbm_antsignal = rs->rs_rssi; |
| 2012 | /* XXX noise. */ |
| 2013 | tap->wr_antenna = rs->rs_antenna; |
| 2014 | rate = rs->rs_rate; |
| 2015 | if (rate & 0x80) { /* HT. */ |
| 2016 | /* Bit 7 set means HT MCS instead of rate. */ |
| 2017 | tap->wr_rate = rate; |
| 2018 | if (!(rs->rs_flags & AR_RXS_FLAG_GI)) |
| 2019 | tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; |
| 2020 | } |
| 2021 | else if (rate & 0x10) { /* CCK. */ |
| 2022 | if (rate & 0x04) |
| 2023 | tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; |
| 2024 | switch (rate & ~0x14) { |
| 2025 | case 0xb: tap->wr_rate = 2; break; |
| 2026 | case 0xa: tap->wr_rate = 4; break; |
| 2027 | case 0x9: tap->wr_rate = 11; break; |
| 2028 | case 0x8: tap->wr_rate = 22; break; |
| 2029 | default: tap->wr_rate = 0; break; |
| 2030 | } |
| 2031 | } |
| 2032 | else { /* OFDM. */ |
| 2033 | switch (rate) { |
| 2034 | case 0xb: tap->wr_rate = 12; break; |
| 2035 | case 0xf: tap->wr_rate = 18; break; |
| 2036 | case 0xa: tap->wr_rate = 24; break; |
| 2037 | case 0xe: tap->wr_rate = 36; break; |
| 2038 | case 0x9: tap->wr_rate = 48; break; |
| 2039 | case 0xd: tap->wr_rate = 72; break; |
| 2040 | case 0x8: tap->wr_rate = 96; break; |
| 2041 | case 0xc: tap->wr_rate = 108; break; |
| 2042 | default: tap->wr_rate = 0; break; |
| 2043 | } |
| 2044 | } |
| 2045 | bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); |
| 2046 | } |
| 2047 | |
| 2048 | Static void |
| 2049 | athn_usb_rx_frame(struct athn_usb_softc *usc, struct mbuf *m) |
| 2050 | { |
| 2051 | struct athn_softc *sc = &usc->usc_sc; |
| 2052 | struct ieee80211com *ic = &sc->sc_ic; |
| 2053 | struct ifnet *ifp = &sc->sc_if; |
| 2054 | struct ieee80211_frame *wh; |
| 2055 | struct ieee80211_node *ni; |
| 2056 | struct ar_htc_frame_hdr *htc; |
| 2057 | struct ar_rx_status *rs; |
| 2058 | uint16_t datalen; |
| 2059 | int s; |
| 2060 | |
| 2061 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 2062 | |
| 2063 | if (__predict_false(m->m_len < (int)sizeof(*htc))) |
| 2064 | goto skip; |
| 2065 | htc = mtod(m, struct ar_htc_frame_hdr *); |
| 2066 | if (__predict_false(htc->endpoint_id == 0)) { |
| 2067 | DPRINTFN(DBG_RX, sc, "bad endpoint %d\n" , htc->endpoint_id); |
| 2068 | goto skip; |
| 2069 | } |
| 2070 | if (htc->flags & AR_HTC_FLAG_TRAILER) { |
| 2071 | if (m->m_len < htc->control[0]) |
| 2072 | goto skip; |
| 2073 | m_adj(m, -(int)htc->control[0]); |
| 2074 | } |
| 2075 | m_adj(m, sizeof(*htc)); /* Strip HTC header. */ |
| 2076 | |
| 2077 | if (__predict_false(m->m_len < (int)sizeof(*rs))) |
| 2078 | goto skip; |
| 2079 | rs = mtod(m, struct ar_rx_status *); |
| 2080 | |
| 2081 | /* Make sure that payload fits. */ |
| 2082 | datalen = be16toh(rs->rs_datalen); |
| 2083 | if (__predict_false(m->m_len < (int)sizeof(*rs) + datalen)) |
| 2084 | goto skip; |
| 2085 | |
| 2086 | /* Ignore runt frames. Let ACKs be seen by bpf */ |
| 2087 | if (__predict_false(datalen < |
| 2088 | sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)) |
| 2089 | goto skip; |
| 2090 | |
| 2091 | m_adj(m, sizeof(*rs)); /* Strip Rx status. */ |
| 2092 | m_set_rcvif(m, ifp); |
| 2093 | |
| 2094 | s = splnet(); |
| 2095 | |
| 2096 | /* Grab a reference to the source node. */ |
| 2097 | wh = mtod(m, struct ieee80211_frame *); |
| 2098 | ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); |
| 2099 | |
| 2100 | /* Remove any HW padding after the 802.11 header. */ |
| 2101 | if (!(wh->i_fc[0] & IEEE80211_FC0_TYPE_CTL)) { |
| 2102 | u_int hdrlen = ieee80211_anyhdrsize(wh); |
| 2103 | if (hdrlen & 3) { |
| 2104 | ovbcopy(wh, (uint8_t *)wh + 2, hdrlen); |
| 2105 | m_adj(m, 2); |
| 2106 | } |
| 2107 | } |
| 2108 | if (__predict_false(sc->sc_drvbpf != NULL)) |
| 2109 | athn_usb_rx_radiotap(sc, m, rs); |
| 2110 | |
| 2111 | /* Trim 802.11 FCS after radiotap. */ |
| 2112 | m_adj(m, -IEEE80211_CRC_LEN); |
| 2113 | |
| 2114 | /* Send the frame to the 802.11 layer. */ |
| 2115 | ieee80211_input(ic, m, ni, rs->rs_rssi + AR_USB_DEFAULT_NF, 0); |
| 2116 | |
| 2117 | /* Node is no longer needed. */ |
| 2118 | ieee80211_free_node(ni); |
| 2119 | splx(s); |
| 2120 | return; |
| 2121 | skip: |
| 2122 | m_freem(m); |
| 2123 | } |
| 2124 | |
| 2125 | Static void |
| 2126 | athn_usb_rxeof(struct usbd_xfer *xfer, void * priv, |
| 2127 | usbd_status status) |
| 2128 | { |
| 2129 | struct athn_usb_rx_data *data = priv; |
| 2130 | struct athn_usb_softc *usc = data->sc; |
| 2131 | struct athn_usb_rx_stream *stream = &usc->usc_rx_stream; |
| 2132 | uint8_t *buf = data->buf; |
| 2133 | struct ar_stream_hdr *hdr; |
| 2134 | struct mbuf *m; |
| 2135 | uint16_t pktlen; |
| 2136 | int off, len; |
| 2137 | |
| 2138 | if (usc->usc_dying) |
| 2139 | return; |
| 2140 | |
| 2141 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 2142 | |
| 2143 | if (__predict_false(status != USBD_NORMAL_COMPLETION)) { |
| 2144 | DPRINTFN(DBG_RX, usc, "RX status=%d\n" , status); |
| 2145 | if (status == USBD_STALLED) |
| 2146 | usbd_clear_endpoint_stall_async(usc->usc_rx_data_pipe); |
| 2147 | if (status != USBD_CANCELLED) |
| 2148 | goto resubmit; |
| 2149 | return; |
| 2150 | } |
| 2151 | usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); |
| 2152 | |
| 2153 | if (stream->left > 0) { |
| 2154 | if (len >= stream->left) { |
| 2155 | /* We have all our pktlen bytes now. */ |
| 2156 | if (__predict_true(stream->m != NULL)) { |
| 2157 | memcpy(mtod(stream->m, uint8_t *) + |
| 2158 | stream->moff, buf, stream->left); |
| 2159 | athn_usb_rx_frame(usc, stream->m); |
| 2160 | stream->m = NULL; |
| 2161 | } |
| 2162 | /* Next header is 32-bit aligned. */ |
| 2163 | off = (stream->left + 3) & ~3; |
| 2164 | buf += off; |
| 2165 | len -= off; |
| 2166 | stream->left = 0; |
| 2167 | } |
| 2168 | else { |
| 2169 | /* Still need more bytes, save what we have. */ |
| 2170 | if (__predict_true(stream->m != NULL)) { |
| 2171 | memcpy(mtod(stream->m, uint8_t *) + |
| 2172 | stream->moff, buf, len); |
| 2173 | stream->moff += len; |
| 2174 | } |
| 2175 | stream->left -= len; |
| 2176 | goto resubmit; |
| 2177 | } |
| 2178 | } |
| 2179 | KASSERT(stream->left == 0); |
| 2180 | while (len >= (int)sizeof(*hdr)) { |
| 2181 | hdr = (struct ar_stream_hdr *)buf; |
| 2182 | if (hdr->tag != htole16(AR_USB_RX_STREAM_TAG)) { |
| 2183 | DPRINTFN(DBG_RX, usc, "invalid tag 0x%x\n" , hdr->tag); |
| 2184 | break; |
| 2185 | } |
| 2186 | pktlen = le16toh(hdr->len); |
| 2187 | buf += sizeof(*hdr); |
| 2188 | len -= sizeof(*hdr); |
| 2189 | |
| 2190 | if (__predict_true(pktlen <= MCLBYTES)) { |
| 2191 | /* Allocate an mbuf to store the next pktlen bytes. */ |
| 2192 | MGETHDR(m, M_DONTWAIT, MT_DATA); |
| 2193 | if (__predict_true(m != NULL)) { |
| 2194 | m->m_pkthdr.len = m->m_len = pktlen; |
| 2195 | if (pktlen > MHLEN) { |
| 2196 | MCLGET(m, M_DONTWAIT); |
| 2197 | if (!(m->m_flags & M_EXT)) { |
| 2198 | m_free(m); |
| 2199 | m = NULL; |
| 2200 | } |
| 2201 | } |
| 2202 | } |
| 2203 | } |
| 2204 | else /* Drop frames larger than MCLBYTES. */ |
| 2205 | m = NULL; |
| 2206 | /* |
| 2207 | * NB: m can be NULL, in which case the next pktlen bytes |
| 2208 | * will be discarded from the Rx stream. |
| 2209 | */ |
| 2210 | if (pktlen > len) { |
| 2211 | /* Need more bytes, save what we have. */ |
| 2212 | stream->m = m; /* NB: m can be NULL. */ |
| 2213 | if (__predict_true(stream->m != NULL)) { |
| 2214 | memcpy(mtod(stream->m, uint8_t *), buf, len); |
| 2215 | stream->moff = len; |
| 2216 | } |
| 2217 | stream->left = pktlen - len; |
| 2218 | goto resubmit; |
| 2219 | } |
| 2220 | if (__predict_true(m != NULL)) { |
| 2221 | /* We have all the pktlen bytes in this xfer. */ |
| 2222 | memcpy(mtod(m, uint8_t *), buf, pktlen); |
| 2223 | athn_usb_rx_frame(usc, m); |
| 2224 | } |
| 2225 | |
| 2226 | /* Next header is 32-bit aligned. */ |
| 2227 | off = (pktlen + 3) & ~3; |
| 2228 | buf += off; |
| 2229 | len -= off; |
| 2230 | } |
| 2231 | |
| 2232 | resubmit: |
| 2233 | /* Setup a new transfer. */ |
| 2234 | usbd_setup_xfer(xfer, data, data->buf, ATHN_USB_RXBUFSZ, |
| 2235 | USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, athn_usb_rxeof); |
| 2236 | (void)usbd_transfer(xfer); |
| 2237 | } |
| 2238 | |
| 2239 | Static void |
| 2240 | athn_usb_txeof(struct usbd_xfer *xfer, void * priv, |
| 2241 | usbd_status status) |
| 2242 | { |
| 2243 | struct athn_usb_tx_data *data = priv; |
| 2244 | struct athn_usb_softc *usc = data->sc; |
| 2245 | struct athn_softc *sc = &usc->usc_sc; |
| 2246 | struct ifnet *ifp = &sc->sc_if; |
| 2247 | int s; |
| 2248 | |
| 2249 | if (usc->usc_dying) |
| 2250 | return; |
| 2251 | |
| 2252 | DPRINTFN(DBG_FN, usc, "\n" ); |
| 2253 | |
| 2254 | s = splnet(); |
| 2255 | /* Put this Tx buffer back to our free list. */ |
| 2256 | mutex_enter(&usc->usc_tx_mtx); |
| 2257 | TAILQ_INSERT_TAIL(&usc->usc_tx_free_list, data, next); |
| 2258 | mutex_exit(&usc->usc_tx_mtx); |
| 2259 | |
| 2260 | if (__predict_false(status != USBD_NORMAL_COMPLETION)) { |
| 2261 | DPRINTFN(DBG_TX, sc, "TX status=%d\n" , status); |
| 2262 | if (status == USBD_STALLED) |
| 2263 | usbd_clear_endpoint_stall_async(usc->usc_tx_data_pipe); |
| 2264 | ifp->if_oerrors++; |
| 2265 | splx(s); |
| 2266 | /* XXX Why return? */ |
| 2267 | return; |
| 2268 | } |
| 2269 | sc->sc_tx_timer = 0; |
| 2270 | ifp->if_opackets++; |
| 2271 | |
| 2272 | /* We just released a Tx buffer, notify Tx. */ |
| 2273 | if (ifp->if_flags & IFF_OACTIVE) { |
| 2274 | ifp->if_flags &= ~IFF_OACTIVE; |
| 2275 | ifp->if_start(ifp); |
| 2276 | } |
| 2277 | splx(s); |
| 2278 | } |
| 2279 | |
| 2280 | Static int |
| 2281 | athn_usb_tx(struct athn_softc *sc, struct mbuf *m, struct ieee80211_node *ni, |
| 2282 | struct athn_usb_tx_data *data) |
| 2283 | { |
| 2284 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 2285 | struct athn_node *an = ATHN_NODE(ni); |
| 2286 | struct ieee80211com *ic = &sc->sc_ic; |
| 2287 | struct ieee80211_frame *wh; |
| 2288 | struct ieee80211_key *k = NULL; |
| 2289 | struct ar_stream_hdr *hdr; |
| 2290 | struct ar_htc_frame_hdr *htc; |
| 2291 | struct ar_tx_frame *txf; |
| 2292 | struct ar_tx_mgmt *txm; |
| 2293 | uint8_t *frm; |
| 2294 | uint8_t sta_index, qid, tid; |
| 2295 | int error, s, xferlen; |
| 2296 | |
| 2297 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 2298 | |
| 2299 | wh = mtod(m, struct ieee80211_frame *); |
| 2300 | if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { |
| 2301 | k = ieee80211_crypto_encap(ic, ni, m); |
| 2302 | if (k == NULL) |
| 2303 | return ENOBUFS; |
| 2304 | |
| 2305 | /* packet header may have moved, reset our local pointer */ |
| 2306 | wh = mtod(m, struct ieee80211_frame *); |
| 2307 | } |
| 2308 | #ifdef notyet_edca |
| 2309 | if (ieee80211_has_qos(wh)) { |
| 2310 | uint16_t qos; |
| 2311 | |
| 2312 | qos = ieee80211_get_qos(wh); |
| 2313 | tid = qos & IEEE80211_QOS_TID; |
| 2314 | qid = ieee80211_up_to_ac(ic, tid); |
| 2315 | } |
| 2316 | else |
| 2317 | #endif /* notyet_edca */ |
| 2318 | { |
| 2319 | tid = 0; |
| 2320 | qid = WME_AC_BE; |
| 2321 | } |
| 2322 | |
| 2323 | /* XXX Change radiotap Tx header for USB (no txrate). */ |
| 2324 | if (__predict_false(sc->sc_drvbpf != NULL)) { |
| 2325 | struct athn_tx_radiotap_header *tap = &sc->sc_txtap; |
| 2326 | |
| 2327 | tap->wt_flags = 0; |
| 2328 | tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); |
| 2329 | tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); |
| 2330 | if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) |
| 2331 | tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; |
| 2332 | |
| 2333 | bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m); |
| 2334 | } |
| 2335 | sta_index = an->sta_index; |
| 2336 | |
| 2337 | /* NB: We don't take advantage of USB Tx stream mode for now. */ |
| 2338 | hdr = (struct ar_stream_hdr *)data->buf; |
| 2339 | hdr->tag = htole16(AR_USB_TX_STREAM_TAG); |
| 2340 | |
| 2341 | htc = (struct ar_htc_frame_hdr *)&hdr[1]; |
| 2342 | memset(htc, 0, sizeof(*htc)); |
| 2343 | if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == |
| 2344 | IEEE80211_FC0_TYPE_DATA) { |
| 2345 | htc->endpoint_id = usc->usc_ep_data[qid]; |
| 2346 | |
| 2347 | txf = (struct ar_tx_frame *)&htc[1]; |
| 2348 | memset(txf, 0, sizeof(*txf)); |
| 2349 | txf->data_type = AR_HTC_NORMAL; |
| 2350 | txf->node_idx = sta_index; |
| 2351 | txf->vif_idx = 0; |
| 2352 | txf->tid = tid; |
| 2353 | if (m->m_pkthdr.len + IEEE80211_CRC_LEN > ic->ic_rtsthreshold) |
| 2354 | txf->flags |= htobe32(AR_HTC_TX_RTSCTS); |
| 2355 | else if (ic->ic_flags & IEEE80211_F_USEPROT) { |
| 2356 | if (ic->ic_protmode == IEEE80211_PROT_CTSONLY) |
| 2357 | txf->flags |= htobe32(AR_HTC_TX_CTSONLY); |
| 2358 | else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS) |
| 2359 | txf->flags |= htobe32(AR_HTC_TX_RTSCTS); |
| 2360 | } |
| 2361 | txf->key_idx = 0xff; |
| 2362 | frm = (uint8_t *)&txf[1]; |
| 2363 | } |
| 2364 | else { |
| 2365 | htc->endpoint_id = usc->usc_ep_mgmt; |
| 2366 | |
| 2367 | txm = (struct ar_tx_mgmt *)&htc[1]; |
| 2368 | memset(txm, 0, sizeof(*txm)); |
| 2369 | txm->node_idx = sta_index; |
| 2370 | txm->vif_idx = 0; |
| 2371 | txm->key_idx = 0xff; |
| 2372 | frm = (uint8_t *)&txm[1]; |
| 2373 | } |
| 2374 | /* Copy payload. */ |
| 2375 | m_copydata(m, 0, m->m_pkthdr.len, (void *)frm); |
| 2376 | frm += m->m_pkthdr.len; |
| 2377 | |
| 2378 | /* Finalize headers. */ |
| 2379 | htc->payload_len = htobe16(frm - (uint8_t *)&htc[1]); |
| 2380 | hdr->len = htole16(frm - (uint8_t *)&hdr[1]); |
| 2381 | xferlen = frm - data->buf; |
| 2382 | |
| 2383 | s = splnet(); |
| 2384 | usbd_setup_xfer(data->xfer, data, data->buf, xferlen, |
| 2385 | USBD_FORCE_SHORT_XFER, ATHN_USB_TX_TIMEOUT, athn_usb_txeof); |
| 2386 | error = usbd_transfer(data->xfer); |
| 2387 | if (__predict_false(error != USBD_IN_PROGRESS && error != 0)) { |
| 2388 | splx(s); |
| 2389 | return error; |
| 2390 | } |
| 2391 | splx(s); |
| 2392 | return 0; |
| 2393 | } |
| 2394 | |
| 2395 | Static void |
| 2396 | athn_usb_start(struct ifnet *ifp) |
| 2397 | { |
| 2398 | struct athn_softc *sc = ifp->if_softc; |
| 2399 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 2400 | struct ieee80211com *ic = &sc->sc_ic; |
| 2401 | struct athn_usb_tx_data *data; |
| 2402 | struct ether_header *eh; |
| 2403 | struct ieee80211_node *ni; |
| 2404 | struct mbuf *m; |
| 2405 | |
| 2406 | if (usc->usc_dying) |
| 2407 | return; |
| 2408 | |
| 2409 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 2410 | |
| 2411 | if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) |
| 2412 | return; |
| 2413 | |
| 2414 | data = NULL; |
| 2415 | for (;;) { |
| 2416 | mutex_enter(&usc->usc_tx_mtx); |
| 2417 | if (data == NULL && !TAILQ_EMPTY(&usc->usc_tx_free_list)) { |
| 2418 | data = TAILQ_FIRST(&usc->usc_tx_free_list); |
| 2419 | TAILQ_REMOVE(&usc->usc_tx_free_list, data, next); |
| 2420 | } |
| 2421 | mutex_exit(&usc->usc_tx_mtx); |
| 2422 | |
| 2423 | if (data == NULL) { |
| 2424 | ifp->if_flags |= IFF_OACTIVE; |
| 2425 | return; |
| 2426 | } |
| 2427 | |
| 2428 | /* Send pending management frames first. */ |
| 2429 | IF_DEQUEUE(&ic->ic_mgtq, m); |
| 2430 | if (m != NULL) { |
| 2431 | ni = M_GETCTX(m, struct ieee80211_node *); |
| 2432 | M_CLEARCTX(m); |
| 2433 | goto sendit; |
| 2434 | } |
| 2435 | if (ic->ic_state != IEEE80211_S_RUN) |
| 2436 | break; |
| 2437 | |
| 2438 | /* Encapsulate and send data frames. */ |
| 2439 | IFQ_DEQUEUE(&ifp->if_snd, m); |
| 2440 | if (m == NULL) |
| 2441 | break; |
| 2442 | |
| 2443 | if (m->m_len < (int)sizeof(*eh) && |
| 2444 | (m = m_pullup(m, sizeof(*eh))) == NULL) { |
| 2445 | ifp->if_oerrors++; |
| 2446 | continue; |
| 2447 | } |
| 2448 | eh = mtod(m, struct ether_header *); |
| 2449 | ni = ieee80211_find_txnode(ic, eh->ether_dhost); |
| 2450 | if (ni == NULL) { |
| 2451 | m_freem(m); |
| 2452 | ifp->if_oerrors++; |
| 2453 | continue; |
| 2454 | } |
| 2455 | |
| 2456 | bpf_mtap(ifp, m); |
| 2457 | |
| 2458 | if ((m = ieee80211_encap(ic, m, ni)) == NULL) { |
| 2459 | ieee80211_free_node(ni); |
| 2460 | ifp->if_oerrors++; |
| 2461 | continue; |
| 2462 | } |
| 2463 | sendit: |
| 2464 | bpf_mtap3(ic->ic_rawbpf, m); |
| 2465 | |
| 2466 | if (athn_usb_tx(sc, m, ni, data) != 0) { |
| 2467 | m_freem(m); |
| 2468 | ieee80211_free_node(ni); |
| 2469 | ifp->if_oerrors++; |
| 2470 | continue; |
| 2471 | } |
| 2472 | data = NULL; |
| 2473 | m_freem(m); |
| 2474 | ieee80211_free_node(ni); |
| 2475 | sc->sc_tx_timer = 5; |
| 2476 | ifp->if_timer = 1; |
| 2477 | } |
| 2478 | |
| 2479 | /* Return the Tx buffer to the free list */ |
| 2480 | mutex_enter(&usc->usc_tx_mtx); |
| 2481 | TAILQ_INSERT_TAIL(&usc->usc_tx_free_list, data, next); |
| 2482 | mutex_exit(&usc->usc_tx_mtx); |
| 2483 | } |
| 2484 | |
| 2485 | Static void |
| 2486 | athn_usb_watchdog(struct ifnet *ifp) |
| 2487 | { |
| 2488 | struct athn_softc *sc = ifp->if_softc; |
| 2489 | |
| 2490 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 2491 | |
| 2492 | ifp->if_timer = 0; |
| 2493 | |
| 2494 | if (sc->sc_tx_timer > 0) { |
| 2495 | if (--sc->sc_tx_timer == 0) { |
| 2496 | aprint_error_dev(sc->sc_dev, "device timeout\n" ); |
| 2497 | /* athn_usb_init(ifp); XXX needs a process context! */ |
| 2498 | ifp->if_oerrors++; |
| 2499 | return; |
| 2500 | } |
| 2501 | ifp->if_timer = 1; |
| 2502 | } |
| 2503 | ieee80211_watchdog(&sc->sc_ic); |
| 2504 | } |
| 2505 | |
| 2506 | Static int |
| 2507 | athn_usb_ioctl(struct ifnet *ifp, u_long cmd, void *data) |
| 2508 | { |
| 2509 | struct athn_softc *sc = ifp->if_softc; |
| 2510 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 2511 | struct ieee80211com *ic = &sc->sc_ic; |
| 2512 | int s, error = 0; |
| 2513 | |
| 2514 | if (usc->usc_dying) |
| 2515 | return EIO; |
| 2516 | |
| 2517 | DPRINTFN(DBG_FN, sc, "cmd=0x%08lx\n" , cmd); |
| 2518 | |
| 2519 | s = splnet(); |
| 2520 | |
| 2521 | switch (cmd) { |
| 2522 | case SIOCSIFFLAGS: |
| 2523 | if ((error = ifioctl_common(ifp, cmd, data)) != 0) |
| 2524 | break; |
| 2525 | |
| 2526 | switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { |
| 2527 | case IFF_UP | IFF_RUNNING: |
| 2528 | break; |
| 2529 | case IFF_UP: |
| 2530 | error = athn_usb_init(ifp); |
| 2531 | break; |
| 2532 | case IFF_RUNNING: |
| 2533 | athn_usb_stop(ifp); |
| 2534 | break; |
| 2535 | case 0: |
| 2536 | default: |
| 2537 | break; |
| 2538 | } |
| 2539 | break; |
| 2540 | |
| 2541 | case SIOCADDMULTI: |
| 2542 | case SIOCDELMULTI: |
| 2543 | if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { |
| 2544 | /* setup multicast filter, etc */ |
| 2545 | error = 0; |
| 2546 | } |
| 2547 | break; |
| 2548 | |
| 2549 | case SIOCS80211CHANNEL: |
| 2550 | error = ieee80211_ioctl(ic, cmd, data); |
| 2551 | if (error == ENETRESET && |
| 2552 | ic->ic_opmode == IEEE80211_M_MONITOR) { |
| 2553 | if (IS_UP_AND_RUNNING(ifp)) |
| 2554 | athn_usb_switch_chan(sc, ic->ic_curchan, NULL); |
| 2555 | error = 0; |
| 2556 | } |
| 2557 | break; |
| 2558 | |
| 2559 | default: |
| 2560 | error = ieee80211_ioctl(ic, cmd, data); |
| 2561 | break; |
| 2562 | } |
| 2563 | if (error == ENETRESET) { |
| 2564 | error = 0; |
| 2565 | if (IS_UP_AND_RUNNING(ifp) && |
| 2566 | ic->ic_roaming != IEEE80211_ROAMING_MANUAL) { |
| 2567 | athn_usb_stop(ifp); |
| 2568 | error = athn_usb_init(ifp); |
| 2569 | } |
| 2570 | } |
| 2571 | splx(s); |
| 2572 | return error; |
| 2573 | } |
| 2574 | |
| 2575 | Static int |
| 2576 | athn_usb_init(struct ifnet *ifp) |
| 2577 | { |
| 2578 | struct athn_softc *sc = ifp->if_softc; |
| 2579 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 2580 | struct athn_ops *ops = &sc->sc_ops; |
| 2581 | struct ieee80211com *ic = &sc->sc_ic; |
| 2582 | struct ieee80211_channel *curchan, *extchan; |
| 2583 | struct athn_usb_rx_data *data; |
| 2584 | struct ar_htc_target_vif hvif; |
| 2585 | struct ar_htc_target_sta sta; |
| 2586 | struct ar_htc_cap_target hic; |
| 2587 | uint16_t mode; |
| 2588 | size_t i; |
| 2589 | int error; |
| 2590 | |
| 2591 | if (usc->usc_dying) |
| 2592 | return USBD_CANCELLED; |
| 2593 | |
| 2594 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 2595 | |
| 2596 | /* Init host async commands ring. */ |
| 2597 | mutex_spin_enter(&usc->usc_task_mtx); |
| 2598 | usc->usc_cmdq.cur = usc->usc_cmdq.next = usc->usc_cmdq.queued = 0; |
| 2599 | mutex_spin_exit(&usc->usc_task_mtx); |
| 2600 | |
| 2601 | /* Steal one buffer for beacons. */ |
| 2602 | mutex_enter(&usc->usc_tx_mtx); |
| 2603 | usc->usc_tx_bcn = TAILQ_FIRST(&usc->usc_tx_free_list); |
| 2604 | TAILQ_REMOVE(&usc->usc_tx_free_list, usc->usc_tx_bcn, next); |
| 2605 | mutex_exit(&usc->usc_tx_mtx); |
| 2606 | |
| 2607 | curchan = ic->ic_curchan; |
| 2608 | extchan = NULL; |
| 2609 | |
| 2610 | /* In case a new MAC address has been configured. */ |
| 2611 | IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); |
| 2612 | |
| 2613 | error = athn_set_power_awake(sc); |
| 2614 | if (error != 0) |
| 2615 | goto fail; |
| 2616 | |
| 2617 | error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_FLUSH_RECV); |
| 2618 | if (error != 0) |
| 2619 | goto fail; |
| 2620 | |
| 2621 | error = athn_hw_reset(sc, curchan, extchan, 1); |
| 2622 | if (error != 0) |
| 2623 | goto fail; |
| 2624 | |
| 2625 | ops->set_txpower(sc, curchan, extchan); |
| 2626 | |
| 2627 | mode = htobe16(IEEE80211_IS_CHAN_2GHZ(curchan) ? |
| 2628 | AR_HTC_MODE_11NG : AR_HTC_MODE_11NA); |
| 2629 | error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_SET_MODE, |
| 2630 | &mode, sizeof(mode), NULL); |
| 2631 | if (error != 0) |
| 2632 | goto fail; |
| 2633 | |
| 2634 | error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_ATH_INIT); |
| 2635 | if (error != 0) |
| 2636 | goto fail; |
| 2637 | |
| 2638 | error = athn_usb_wmi_cmd(usc, AR_WMI_CMD_START_RECV); |
| 2639 | if (error != 0) |
| 2640 | goto fail; |
| 2641 | |
| 2642 | athn_rx_start(sc); |
| 2643 | |
| 2644 | /* Create main interface on target. */ |
| 2645 | memset(&hvif, 0, sizeof(hvif)); |
| 2646 | hvif.index = 0; |
| 2647 | IEEE80211_ADDR_COPY(hvif.myaddr, ic->ic_myaddr); |
| 2648 | switch (ic->ic_opmode) { |
| 2649 | case IEEE80211_M_STA: |
| 2650 | hvif.opmode = htobe32(AR_HTC_M_STA); |
| 2651 | break; |
| 2652 | case IEEE80211_M_MONITOR: |
| 2653 | hvif.opmode = htobe32(AR_HTC_M_MONITOR); |
| 2654 | break; |
| 2655 | #ifndef IEEE80211_STA_ONLY |
| 2656 | case IEEE80211_M_IBSS: |
| 2657 | hvif.opmode = htobe32(AR_HTC_M_IBSS); |
| 2658 | break; |
| 2659 | case IEEE80211_M_AHDEMO: |
| 2660 | hvif.opmode = htobe32(AR_HTC_M_AHDEMO); |
| 2661 | break; |
| 2662 | case IEEE80211_M_HOSTAP: |
| 2663 | hvif.opmode = htobe32(AR_HTC_M_HOSTAP); |
| 2664 | break; |
| 2665 | #endif |
| 2666 | } |
| 2667 | hvif.rtsthreshold = htobe16(ic->ic_rtsthreshold); |
| 2668 | DPRINTFN(DBG_INIT, sc, "creating VAP\n" ); |
| 2669 | error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_VAP_CREATE, |
| 2670 | &hvif, sizeof(hvif), NULL); |
| 2671 | if (error != 0) |
| 2672 | goto fail; |
| 2673 | |
| 2674 | /* Create a fake node to send management frames before assoc. */ |
| 2675 | memset(&sta, 0, sizeof(sta)); |
| 2676 | IEEE80211_ADDR_COPY(sta.macaddr, ic->ic_myaddr); |
| 2677 | sta.sta_index = 0; |
| 2678 | sta.is_vif_sta = 1; |
| 2679 | sta.vif_index = hvif.index; |
| 2680 | sta.maxampdu = 0xffff; |
| 2681 | |
| 2682 | DPRINTFN(DBG_INIT | DBG_NODES, sc, "creating default node %u\n" , |
| 2683 | sta.sta_index); |
| 2684 | error = athn_usb_create_hw_node(usc, &sta); |
| 2685 | if (error != 0) |
| 2686 | goto fail; |
| 2687 | |
| 2688 | /* Update target capabilities. */ |
| 2689 | memset(&hic, 0, sizeof(hic)); |
| 2690 | hic.flags = htobe32(0x400c2400); |
| 2691 | hic.flags_ext = htobe32(0x00106080); |
| 2692 | hic.ampdu_limit = htobe32(0x0000ffff); |
| 2693 | hic.ampdu_subframes = 20; |
| 2694 | hic.protmode = 1; /* XXX */ |
| 2695 | hic.lg_txchainmask = sc->sc_txchainmask; |
| 2696 | hic.ht_txchainmask = sc->sc_txchainmask; |
| 2697 | DPRINTFN(DBG_INIT, sc, "updating target configuration\n" ); |
| 2698 | error = athn_usb_wmi_xcmd(usc, AR_WMI_CMD_TARGET_IC_UPDATE, |
| 2699 | &hic, sizeof(hic), NULL); |
| 2700 | if (error != 0) |
| 2701 | goto fail; |
| 2702 | |
| 2703 | /* Queue Rx xfers. */ |
| 2704 | for (i = 0; i < ATHN_USB_RX_LIST_COUNT; i++) { |
| 2705 | data = &usc->usc_rx_data[i]; |
| 2706 | |
| 2707 | usbd_setup_xfer(data->xfer, data, data->buf, |
| 2708 | ATHN_USB_RXBUFSZ, USBD_SHORT_XFER_OK, |
| 2709 | USBD_NO_TIMEOUT, athn_usb_rxeof); |
| 2710 | error = usbd_transfer(data->xfer); |
| 2711 | if (error != 0 && error != USBD_IN_PROGRESS) |
| 2712 | goto fail; |
| 2713 | } |
| 2714 | /* We're ready to go. */ |
| 2715 | ifp->if_flags &= ~IFF_OACTIVE; |
| 2716 | ifp->if_flags |= IFF_RUNNING; |
| 2717 | |
| 2718 | #ifdef notyet |
| 2719 | if (ic->ic_flags & IEEE80211_F_WEPON) { |
| 2720 | /* Install WEP keys. */ |
| 2721 | for (i = 0; i < IEEE80211_WEP_NKID; i++) |
| 2722 | athn_usb_set_key(ic, NULL, &ic->ic_nw_keys[i]); |
| 2723 | } |
| 2724 | #endif |
| 2725 | if (ic->ic_opmode == IEEE80211_M_HOSTAP) |
| 2726 | ic->ic_max_aid = AR_USB_MAX_STA; /* Firmware is limited to 8 STA */ |
| 2727 | else |
| 2728 | ic->ic_max_aid = sc->sc_max_aid; |
| 2729 | |
| 2730 | if (ic->ic_opmode == IEEE80211_M_MONITOR) |
| 2731 | ieee80211_new_state(ic, IEEE80211_S_RUN, -1); |
| 2732 | else |
| 2733 | ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); |
| 2734 | athn_usb_wait_async(usc); |
| 2735 | return 0; |
| 2736 | fail: |
| 2737 | athn_usb_stop(ifp); |
| 2738 | return error; |
| 2739 | } |
| 2740 | |
| 2741 | Static void |
| 2742 | athn_usb_stop(struct ifnet *ifp) |
| 2743 | { |
| 2744 | struct athn_softc *sc = ifp->if_softc; |
| 2745 | struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc); |
| 2746 | struct ieee80211com *ic = &sc->sc_ic; |
| 2747 | struct ar_htc_target_vif hvif; |
| 2748 | struct mbuf *m; |
| 2749 | uint8_t sta_index; |
| 2750 | int s; |
| 2751 | |
| 2752 | DPRINTFN(DBG_FN, sc, "\n" ); |
| 2753 | |
| 2754 | s = splusb(); |
| 2755 | ieee80211_new_state(ic, IEEE80211_S_INIT, -1); |
| 2756 | athn_usb_wait_async(usc); |
| 2757 | splx(s); |
| 2758 | |
| 2759 | sc->sc_tx_timer = 0; |
| 2760 | ifp->if_timer = 0; |
| 2761 | ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); |
| 2762 | |
| 2763 | callout_stop(&sc->sc_scan_to); |
| 2764 | callout_stop(&sc->sc_calib_to); |
| 2765 | |
| 2766 | /* Abort Tx/Rx. */ |
| 2767 | usbd_abort_pipe(usc->usc_tx_data_pipe); |
| 2768 | usbd_abort_pipe(usc->usc_rx_data_pipe); |
| 2769 | |
| 2770 | /* Free Tx/Rx buffers. */ |
| 2771 | athn_usb_free_tx_list(usc); |
| 2772 | athn_usb_free_rx_list(usc); |
| 2773 | |
| 2774 | /* Flush Rx stream. */ |
| 2775 | CTASSERT(sizeof(m) == sizeof(void *)); |
| 2776 | m = atomic_swap_ptr(&usc->usc_rx_stream.m, NULL); |
| 2777 | m_freem(m); |
| 2778 | usc->usc_rx_stream.left = 0; |
| 2779 | |
| 2780 | /* Remove main interface. */ |
| 2781 | memset(&hvif, 0, sizeof(hvif)); |
| 2782 | hvif.index = 0; |
| 2783 | IEEE80211_ADDR_COPY(hvif.myaddr, ic->ic_myaddr); |
| 2784 | (void)athn_usb_wmi_xcmd(usc, AR_WMI_CMD_VAP_REMOVE, |
| 2785 | &hvif, sizeof(hvif), NULL); |
| 2786 | |
| 2787 | /* Remove default node. */ |
| 2788 | sta_index = 0; |
| 2789 | DPRINTFN(DBG_NODES, usc, "removing node %u\n" , sta_index); |
| 2790 | (void)athn_usb_remove_hw_node(usc, &sta_index); |
| 2791 | |
| 2792 | (void)athn_usb_wmi_cmd(usc, AR_WMI_CMD_DISABLE_INTR); |
| 2793 | (void)athn_usb_wmi_cmd(usc, AR_WMI_CMD_DRAIN_TXQ_ALL); |
| 2794 | (void)athn_usb_wmi_cmd(usc, AR_WMI_CMD_STOP_RECV); |
| 2795 | |
| 2796 | athn_reset(sc, 0); |
| 2797 | athn_init_pll(sc, NULL); |
| 2798 | athn_set_power_awake(sc); |
| 2799 | athn_reset(sc, 1); |
| 2800 | athn_init_pll(sc, NULL); |
| 2801 | athn_set_power_sleep(sc); |
| 2802 | } |
| 2803 | |
| 2804 | MODULE(MODULE_CLASS_DRIVER, if_athn_usb, "bpf" ); |
| 2805 | |
| 2806 | #ifdef _MODULE |
| 2807 | #include "ioconf.c" |
| 2808 | #endif |
| 2809 | |
| 2810 | static int |
| 2811 | if_athn_usb_modcmd(modcmd_t cmd, void *aux) |
| 2812 | { |
| 2813 | int error = 0; |
| 2814 | |
| 2815 | switch (cmd) { |
| 2816 | case MODULE_CMD_INIT: |
| 2817 | #ifdef _MODULE |
| 2818 | error = config_init_component(cfdriver_ioconf_if_athn_usb, |
| 2819 | cfattach_ioconf_if_athn_usb, cfdata_ioconf_if_athn_usb); |
| 2820 | #endif |
| 2821 | return error; |
| 2822 | case MODULE_CMD_FINI: |
| 2823 | #ifdef _MODULE |
| 2824 | error = config_fini_component(cfdriver_ioconf_if_athn_usb, |
| 2825 | cfattach_ioconf_if_athn_usb, cfdata_ioconf_if_athn_usb); |
| 2826 | #endif |
| 2827 | return error; |
| 2828 | default: |
| 2829 | return ENOTTY; |
| 2830 | } |
| 2831 | } |
| 2832 | |